CN111467985A - Solution preparation and injection system based on reciprocating driving device - Google Patents

Abstract

The invention provides a solution preparation and injection system based on a reciprocating drive device, comprising a liquid storage device, a first pipeline, a first valve, a second pipeline, a second valve, a control device and a liquid dispensing device; The inside of the liquid device is provided with a fourth accommodating space; the fourth accommodating space is connected with the liquid storage device through the first pipeline; the fluid in the fourth accommodating space flows out through the second pipeline; the first valve, The second valve is installed on the first pipeline and the second pipeline respectively, and the control device is electrically connected to the first valve and the second valve respectively; the number of the liquid dispensing devices can be set according to the type of fluid required in the solution configuration , the second pipeline is provided with an injection head. In the present invention, the entire preparation system is connected through the pipeline sealing, there is no splash and volatilization of the liquid medicine, and no power supply is required except for the switch during the liquid injection process, which is safe, reliable, and noise-free. Wide range of applications.

Description

Solution preparation and injection system based on reciprocating drive device

technical field

The invention relates to the technical field of solution preparation, in particular to a solution preparation and injection system based on a reciprocating drive device.

Background technique

Injection refers to injecting liquid or gas into the human body with the help of a medical device such as a syringe to achieve the purpose of diagnosis, treatment and prevention of diseases. After injection, the medicinal liquid can quickly reach the blood and have an effect, but in case of misuse, the medicine is not easy to be removed, and the injection is painful, and local adverse reactions sometimes occur at the injection site.

In the existing medical technology field, many patients need to inject drugs for a long time to maintain a normal life. Therefore, patients need to spend a lot of time in the hospital for injections on a regular basis. At the same time, medical staff also spend a lot of time on manual dispensing. It is labor-intensive, low-efficiency, and prone to operational errors during the process, which not only wastes the time of patients and medical staff, but also has unsafe factors; The ratio requirements are strict, which brings greater challenges to the manual preparation of liquids.

Patent document CN209154758U discloses an intelligent injection system, which acquires the user's blood glucose value through a continuous blood glucose monitor, and sends it to a single-chip microcomputer through a wireless connection module. It can know its current blood sugar level in real time. When the blood sugar level is higher than the normal level, it sends an instruction to the single-chip microcomputer through the button, and the single-chip computer receives the instruction of the button and controls the first motor drive circuit to drive the double-tube injection. The pump injects insulin, and when the blood sugar level is lower than the normal level, it sends an instruction to the single-chip microcomputer through the button, and the single-chip computer receives the instruction of the button and controls the second motor drive circuit to drive the double-tube syringe pump to inject glucagon. In this way, the blood sugar level of diabetic patients can be monitored and displayed in real time, and insulin or glucagon can be injected instantly to maintain the blood sugar balance in the body to ensure the safety of diabetic patients. However, this design cannot realize the preparation of multiple liquid medicines, and Entirely based on electrical energy and noisy.

SUMMARY OF THE INVENTION

In view of the defects in the prior art, the purpose of the present invention is to provide a solution preparation and injection system based on a reciprocating drive device.

A solution preparation and injection system based on a reciprocating drive device provided according to the present invention includes a liquid storage device, a first pipeline 1, a first valve 5, a second pipeline 6, a second valve 7, a control device and a liquid dispensing device device;

The inside of the liquid dispensing device is provided with a fourth accommodation space 35;

The fourth accommodating space 35 is connected with the liquid storage device through the first pipeline 1;

The fluid in the fourth accommodating space 35 flows out through the second pipeline 6;

The first valve 5 and the second valve 7 are respectively installed on the first pipeline 1 and the second pipeline 6, and the control device is electrically connected with the first valve 5 and the second valve 7 respectively;

The number of the liquid dispensing devices can be set according to the type of fluid required in the solution configuration, and the number of the liquid storage devices matches the number of the liquid dispensing devices.

Preferably, the liquid dispensing device is provided with a fluid actuator and a power actuator, and the power actuator is provided with a second driving body 8, which adopts any of the following structural forms:

- Including a linkage rod 9, the linkage rod 9 is provided with a first connection end 33 and a second connection end 36, the first connection end 33 extends into the interior of the fluid actuator and forms a fourth connection with the fluid actuator accommodating space 35;

The second connecting end 36 extends into the interior of the power actuator and forms a fifth accommodating space 37 with the power actuator. The fifth accommodating space 37 is a closed space, and the second driving body 8 is installed in the fifth accommodating space 37 . In the accommodating space 37;

The second driving body 8 is electrically connected to the control device;

Driven by the second driving body 8, the linkage rod 9 moves away from the fifth accommodating space 37;

The fifth accommodating space 37 is a closed space, and the linkage rod 9 is communicated with the outside atmosphere. When the driving of the second driving body 8 is released, under the action of the external atmospheric pressure, the linkage rod 9 moves closer to the fourth accommodating space 35 . , the volume of the fourth accommodating space 35 becomes smaller at this time.

- One end of the power actuator extends into the interior of the fluid actuator and forms a sixth accommodating space 38 with the fluid actuator, and the other end of the power actuator is a free end;

The power actuator includes a fixed rod 39 and a moving casing 34, the fixed rod 39 is installed inside the moving casing 34, and a first accommodating space 3 is formed between the fixed rod 39 and the moving casing 34. The second driving body 8 is installed in the first accommodating space 3;

The second driving body 8 is electrically connected to the control device;

Driven by the second driving body 8, the moving casing 34 moves along the fixing rod 39 to the direction in which the volume of the first accommodating space 3 increases;

The first accommodating space 3 is a closed space, and the fixed rod 39 is communicated with the outside atmosphere through the moving casing 34. When the driving of the second driving body 8 is released, under the action of the outside atmospheric pressure, the moving casing 34 moves along the outer atmosphere. The fixing rod 39 moves in the direction in which the volume of the first accommodating space 3 becomes smaller, and at this time, the volume of the sixth accommodating space 38 becomes smaller.

Preferably, it also includes a liquid replenishing device and a third valve 13;

The third valve 13 is installed on the first pipeline 1;

The liquid replenishing device is installed on the first pipeline 1 and is arranged between the first valve 5 and the third valve 13;

The inside of the liquid replenishing device is provided with a liquid replenishing device casing 24 and a first driving rod 2, and the interior of the liquid replenishing device casing 24 is divided into a second accommodating space 30 and a third accommodating space 31 by the first driving rod 2;

The second accommodating space 30 and the third accommodating space 31 are closed spaces, and the second accommodating space 30 is provided with the first driving body 4;

The third accommodating space 31 is respectively connected to the fourth accommodating space 35 and the liquid storage device through the first pipeline 1; or

The third accommodating space 31 is respectively connected to the sixth accommodating space 38 and the liquid storage device through the first pipeline 1;

The first driving body 4 is electrically connected to the control device;

When the first driving body 4 drives the first driving rod 2 to move close to the third accommodating space 31 , the first valve 5 is opened, and the fluid in the third accommodating space 31 enters the fourth accommodating space through the first pipeline 1 35;

When the driving of the first driving body 4 is released, the third valve 13 is opened and the first valve 5 is closed. Under the action of the external atmospheric pressure, the first driving rod 2 moves away from the third accommodating space 31 to remove the liquid in the liquid storage device. The fluid is sucked into the third accommodating space 31 .

Preferably, the first valve 5, the second valve 7, and the third valve 13 respectively adopt any of the following structural forms:

- comprising a first control rod 10, a second control rod 11, a control mechanism 12 and a joint shaft 14, the first control rod 10, the second control rod 11 are arranged crosswise and the first control rod 10, the second control rod 11 can be mutually rotated around the joint shaft 14 under the driving of the control mechanism 12;

When the control mechanism 12 drives one end of the first control rod 10 and the second control rod 11 to move away from each other, the other ends of the first control rod 10 and the second control rod 11 move away from each other. At this time, the first valve 5 or the second valve 7 appears to be open;

When the control mechanism 12 drives one end of the first control rod 10 and the second control rod 11 to approach each other, the other ends of the first control rod 10 and the second control rod 11 approach each other. At this time, the first valve 5 or the second valve 7 appears to be closed;

- Including the control mechanism 12, the mounting carrier 15, the control arm 16, the support column 17 and the telescopic mechanism 18;

The control arm 16 includes a control end and a driving end;

One end of the control mechanism 12, one end of the support column 17, and one end of the telescopic mechanism 18 are respectively mounted on the mounting carrier 15, and the control arm 16 is rotatably mounted on the other end of the support column 17;

The driving end of the control arm 16 rotates around the other end of the support column 17 under the driving of the control mechanism 12, so that the control end of the control arm 16 is actuated to realize the opening of the first valve 5 and/or the second valve 7;

When the control mechanism 12 is away from the driving end, the telescopic mechanism 18 can drive the driving end to close the first valve 5 and/or the second valve 7;

- comprising a first capsule 41, a second capsule 42 and a first magnetic field control body;

The first balloon 41 and the second balloon 42 are respectively disposed on both sides of the first pipeline 1 and the second pipeline 6 along the width direction, and the first balloon 41 and the second balloon 42 are filled with There is switching fluid;

When the first magnetic field control body does not apply a magnetic field, there is a first gap between the first capsule body 41 and the second capsule body 42 and the first valve 5 and/or the second valve 7 are open;

When the first magnetic field control body applies a magnetic field, the first balloon 41 and the second balloon 42 are deformed and approached so as to block the first pipeline 1 and/or the second pipeline 6 to realize the first valve 5 and/or or closing of the second valve 7;

- comprising a third bladder 44 and a second magnetic field control body, the third bladder 44 is arranged inside the first pipeline 1 and the second pipeline 6, and the third bladder 44 is filled with switching fluid;

When the second magnetic field control body does not apply a magnetic field, a second gap exists between the third bladder 44 and the inner wall of the first pipeline 1 or the second pipeline 6, and the first valve 5 and/or the second Valve 7 is open;

When the second magnetic field control body applies a magnetic field, the third bladder 44 deforms to block the first pipeline 1 and/or the second pipeline 6 to close the first valve 5 and/or the second valve 7 .

Preferably, the control mechanism 12 includes any one of the following structural forms:

- Piezoelectric ceramic structures;

- magnetostrictive structures;

- shape memory alloy drive body;

- hydraulic or pneumatic drive bodies;

- magnetorheological fluid driver;

- electrorheological fluid driver;

- thermal expansion drive body;

- Electromagnetic drive body;

- Electromagnetic permanent magnet drive.

Preferably, it is characterized in that the first driving body 4 or the second driving body 8 respectively adopts any of the following driving structures:

- motor;

- Phase change driver;

- Smart material structures;

- Pneumatic drive body;

- Hydraulic drive body.

Preferably, the casing 24 of the rehydration device adopts an annular structure;

An annular channel is arranged inside the annular structure body, and a plug 22 is fixed inside the annular channel. The first driving rod 2 and the plug 22 divide the annular channel into a second accommodating space 30 and a third accommodating space 31 .

Preferably, it also includes a mixing chamber 40;

The mixing chamber 40 is respectively connected to the fourth accommodating space 35 and the third accommodating space 31 through the first pipeline 1; or

The mixing chamber 40 is respectively connected to the sixth accommodating space 38 and the third accommodating space 31 through the first pipeline 1 .

Preferably, it also includes an injection device, the injection device includes an injection head 25, one end of the injection head 25 is connected to the second pipeline 6, and the other end of the injection head 25 is a free end;

The number of the injection heads 25 is one or more.

Preferably, it also includes a liquid dispensing tank 20 and a finished product tank 21;

The liquid dispensing tank 20 is respectively connected with the second pipeline 6 and the finished product tank 21 .

Compared with the prior art, the present invention has the following beneficial effects:

1. The present invention realizes the automatic preparation of the solution based on the reciprocating drive device and the control device, and the entire preparation system is sealed and connected through the pipeline, without splashing and volatilization of the medicinal liquid, and the medicinal liquid flows from the fourth accommodation space 3 to the liquid dispensing tank. In the process, no power supply is required except for switching, which is safe, reliable, precise and controllable, without noise, and can realize the simultaneous preparation of multiple medicinal liquids. Compared with the prior art, the structure is simple, the operation is convenient, and the application is wide.

2. The device can be applied to the automatic injection system of the human body or animal body to complete the automatic preparation of the solution and the injection of the solution. The preparation and injection are carried out synchronously. The volume is small and the precision is high. It is suitable for patients or animals to carry, and has great portability. It can be installed or worn on the human body or animal body, and has strong practicability.

3. In the present invention, the first valve and the second valve can use precision switches to control the flow of microfluid from the valve to realize the large stroke output and precise displacement of the first transmission rod, and the control precision is high, which can be applied to precision instruments.

4. The present invention can adopt various driving modes such as memory alloy structures and motors, and can be reasonably selected according to different application scenarios.

5. The present invention can realize the on-line preparation of various solutions by setting multiple liquid dispensing devices and multiple matching liquid storage devices. By pre-setting the injection dose, the safe preparation of a single determined amount is safe and reliable. The device can realize automatic preparation and automatic injection, which greatly reduces the labor in the process of patient treatment.

6. In the present invention, the first valve, the second valve and the third valve can use a fluid (switching fluid) specially used for switching to realize the opening and closing of the valve, which is convenient to operate and has a wide range of applications.

7. In the present invention, the pressure difference between the fifth accommodating space and the outside atmosphere can be used to realize the addition of medicinal liquid to the liquid dispensing tank from the fourth accommodating space, thereby reducing energy consumption, and at the same time, the solution preparation can be realized by actively applying pressure. Reasonable selection of different application scenarios, strong practicability.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structure schematic diagram of the present invention adopting the fluid replacement device

Fig. 3 is the structural schematic diagram when the first valve and the second valve are closed in the embodiment of the present invention;

4 is a schematic structural diagram when the first valve and the second valve are opened in the embodiment of the present invention;

Fig. 5 is the structural representation of the first valve and the second valve in the embodiment;

Fig. 6 is the structural schematic diagram of liquid transmission displacement amplification in the control mechanism;

Fig. 7 is the structural schematic diagram of liquid transmission displacement reduction in the control mechanism;

FIG. 8 is a schematic structural diagram of the phase change material in the first driving body before and after the phase change;

Fig. 9 is the structural representation when the fluid replacement device adopts the annular structure;

10 is a schematic structural diagram when the first valve or the second valve adopts a plurality of bladders to realize the opening of the valve;

11 is a schematic structural diagram when the first valve or the second valve adopts a plurality of bladders to realize valve closing;

Figure 12 is a schematic structural diagram when the first valve or the second valve adopts a bladder to realize the opening of the valve;

13 is a schematic structural diagram when the first valve or the second valve adopts a bladder to realize valve closing;

14 is a schematic structural diagram of the present invention after installing the liquid dispensing tank and the finished product tank;

15 is a schematic structural diagram of the injection head of the present invention when it is installed on the second pipeline;

Figure 16 is a schematic structural diagram of the injection head of the present invention installed on the liquid distribution tank;

17 is a schematic structural diagram of an embodiment of the present invention;

Figure 18 is a schematic structural diagram of the present invention when a mounting shell is installed;

Figure 19 is a schematic structural diagram of the present invention when it is installed on a human arm;

Fig. 20 is the structural schematic diagram when the present invention is installed on the chest or waist of the human body;

Figure 21 is a schematic diagram of the structure of the mixing chamber.

The figure shows:

Detailed ways

The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the inventive concept. These all belong to the protection scope of the present invention.

The present invention provides a solution preparation and injection system based on a reciprocating drive device, as shown in FIG. 1, including a liquid storage device, a first pipeline 1, a first valve 5, a second pipeline 6, a second valve 7, A control device and a liquid dispensing device; a fourth accommodating space 35 is provided inside the liquid dispensing device; the fourth accommodating space 35 is connected with the liquid storage device through the first pipeline 1; the fourth accommodating space 35 is The fluid flows out through the second pipeline 6; the first valve 5 and the second valve 7 are respectively installed on the first pipeline 1 and the second pipeline 6, and the control device is connected with the first valve 5 and the second valve respectively. 7 is electrically connected; the number of the liquid dispensing devices can be set according to the type of fluid required in the solution configuration, and the number of the liquid storage devices matches the number of the liquid dispensing devices.

Further, as shown in FIG. 1 , an injection device is also included, the injection device includes an injection head 25 , one end of the injection head 25 is connected to the second pipeline 6 , and the other end of the injection head 25 is a free end; The number of the injection heads 25 is one or more. When the number of the injection heads 25 is multiple, the multiple injection heads 25 can be arranged in a parallel structure and in a plane arrangement, as shown in a single row in FIG. 15 . Structural form, a plurality of injection heads 25 can also be arranged in a regular array arrangement structure, as shown in the array structure form in Figure 15, and can also be set in an irregular three-dimensional arrangement according to the injection site, depending on the actual application scene. It is designed to meet the actual needs. Under the condition of stable negative pressure, through the precise control of the valve, the device can make the medicine liquid be injected slowly and uniformly for a long time through multiple injection heads 25 (sustained release effect). In a preferred example, the number of injection heads 25 is 64, and the 64 injection heads 25 are arranged in an array arrangement of a rectangular parallelepiped structure with 8 rows and 8 columns.

Further, in addition to being directly installed on the second pipeline 6 for use, the injection head 25 can also be installed on the liquid dispensing tank 20 for use, or the injection head 25 can be installed on the finished product tank 21 for use, which may be reasonably selected according to the actual situation. .

The injection device in the present invention can realize the effect of gravity-free injection through the pressure difference between the fifth accommodating space 37 and the external atmospheric pressure, which overcomes the traditional dripping mode by gravity, and the device can be designed into a compact structure in practical applications , as shown in Figure 17, to achieve the effect of small size, and installed in the installation housing 26, as shown in Figure 18, the injection end of the injection head 25 extends to the outside of the installation housing 26, and can be worn in the On the body, it can also be installed on the human body according to the injection site, as shown in Figure 19 and Figure 20, Figure 19 is installed on the arm of the human body, Figure 20 is installed on the chest of the human body or installed on the abdomen of the human body or any needs of the human body. The installed part achieves the effect of all the follow-up on the human body.

Specifically, as shown in FIG. 14 and FIG. 16 , a liquid dispensing tank (20) and a finished product tank (21) are further included, and the liquid dispensing tank (20) is connected to the second pipeline (6) and the finished product tank (21) respectively. Connection, according to the characteristics of different liquid medicines, the liquid medicine can be added into the liquid dispensing tank (20) for mixing, and then pressed into the finished product tank (21) for use. After the finished product tank (21), the liquid medicine can be more uniform. Can meet the requirements of special solutions.

Specifically, as shown in FIG. 14, the injection device is installed on the finished product tank 21, and the finished product tank 21 is connected with the liquid distribution tank 20 through a pipeline; the control device can control the first valve respectively according to the set program 5. The second valve 7. The liquid dispensing device and the injection device complete the preparation and injection of the solution. In practical applications, it can be applied to a portable injection device. For patients who often need injections, this system can be used to preset the injection dose, The injection time completes the automatic preparation of the liquid medicine, and then completes the automatic injection, which solves the troubles of patients frequently going to the hospital.

Specifically, as shown in FIG. 1 , the liquid dispensing device is provided with a fluid actuator and a power actuator, and the power actuator is provided with a second driving body 8 . The liquid dispensing device can adopt various structural forms. In a preferred example, it includes a linkage rod 9. The linkage rod 9 is provided with a first connection end 33 and a second connection end 36. The first connection end 33 extends into the interior of the fluid actuator and is connected to the fluid actuator. A fourth accommodating space 35 is formed between them; the second connecting end 36 extends into the interior of the power actuator and forms a fifth accommodating space 37 between the second connecting end 36 and the power actuator. The fifth accommodating space 37 is a closed space, and the first Two driving bodies 8 are installed in the fifth accommodating space 37 ; the second driving body 8 is electrically connected to the control device; the linkage rod 9 moves away from the fifth accommodating space 37 under the driving of the second driving body 8 The fifth accommodating space 37 is a closed space, and the linkage rod 9 is communicated with the outside atmosphere. When the driving of the second driving body 8 is released, under the action of the external atmospheric pressure, the linkage rod 9 moves closer to the fourth accommodating space. 35 in the direction of movement, at this time, the volume of the fourth accommodating space 35 becomes smaller.

Further, as shown in FIG. 1 , which is a preferred example of the liquid dispensing device, the second driving body 8 adopts a shape memory alloy to realize the movement of the linkage rod 9, and the pistons at both ends are driven by the linkage rod 9 to act synchronously, under the effect of the external atmospheric pressure. The linkage rod 9 can be moved in the direction away from the fourth accommodation space 35, but the driving device used at this time, such as a shape memory alloy, is a combination method, which can be a shape memory alloy that shrinks by heat, or can be driven by cooling shrinkage. .

Further, in a variation, one end of the power actuator extends into the interior of the fluid actuator and forms a sixth accommodating space 38 with the fluid actuator, and the other end of the power actuator is a free end; The power actuator includes a fixed rod 39 and a moving casing 34. The fixed rod 39 is installed inside the moving casing 34 and a first accommodating space 3 is formed between the fixed rod 39 and the moving casing 34. Two driving bodies 8 are installed in the first accommodating space 3; the second driving body 8 is electrically connected to the control device; under the driving of the second driving body 8, the moving casing 34 moves toward the first accommodating space along the fixing rod 39 3. Movement in the direction of increasing volume; the first accommodating space 3 is a closed space, and the fixed rod 39 is communicated with the outside atmosphere through the moving casing 34. When the driving of the second driving body 8 is released, under the action of the outside atmospheric pressure , the moving housing 34 moves along the fixing rod 39 in the direction of decreasing the volume of the first accommodating space 3 , and at this time, the volume of the sixth accommodating space 38 becomes smaller.

Specifically, as shown in FIG. 1 and FIG. 2 , it also includes a liquid replenishing device and a third valve 13 ; the third valve 13 is installed on the first pipeline 1 ; the liquid replenishing device is installed on the first pipeline 1 and It is provided between the first valve 5 and the third valve 13 .

Specifically, as shown in FIG. 2 , the inside of the fluid replacement device is provided with a fluid replacement device housing 24 and a first drive rod 2 , and the interior of the fluid replacement device housing 24 is divided into a second accommodating space by the first drive rod 2 . 30 and a third accommodating space 31, the second accommodating space 30 and the third accommodating space 31 are closed spaces, the second accommodating space 30 is provided with the first driving body 4; the third accommodating space 31 passes through The first pipeline 1 is respectively connected to the fourth accommodating space 35 and the liquid storage device; or the third accommodating space 31 is respectively connected to the sixth accommodating space 38 and the liquid storage device through the first pipeline 1 ; the first driving body 4 It is electrically connected to the control device; when the first driving body 4 drives the first driving rod 2 to move close to the third accommodating space 31, the first valve 5 is opened, and the fluid in the third accommodating space 31 passes through the first pipeline 1 enters the fourth accommodating space 35; when the driving of the first driving body 4 is released, the third valve 13 is opened and the first valve 5 is closed. Under the action of the external atmospheric pressure, the first driving rod 2 is far away from the third accommodating space 31 moves to suck the fluid in the liquid storage device into the third accommodating space 31 .

Specifically, in a preferred example, as shown in FIG. 1 , the liquid storage device adopts a liquid storage bottle 23, and containers of different structures and sizes can also be selected according to actual conditions to meet the needs of practical applications.

Specifically, as shown in FIG. 1 , the first driving body 4 or the second driving body 8 includes various driving forms, including the use of smart materials, motors, hydraulic pressure, air pressure or phase change materials, etc. In a preferred example, The first driving body 4 uses a phase change material as a driving body, for example, a phase change material paraffin is used, an electric heating wire is arranged in the paraffin wax, and the phase change of the phase change material is realized by heating the electric heating wire with electricity, thereby controlling the paraffin wax. Expansion and contraction can be realized by the temperature change of the first driving body 4, so as to realize the precise driving of the first driving rod 2 by the first driving body 4. As shown in FIG. In the modified example, the first driving body 4 adopts the shape memory alloy in the smart material as the driving body, and the shape memory alloy has a shape memory effect. The length of the shape memory alloy spring will be extended immediately, and then put it in cold water, it will return to its original state immediately. The shape memory alloy spring can be used to control the length of the shape memory alloy spring by controlling the water temperature, so as to realize the driving function. For example, in smart materials Magnetostrictive materials can also be precisely driven by being magnetized in a magnetic field to achieve elongation and shortening in the direction of the magnetic field.

Specifically, as shown in FIG. 1 and FIG. 21 , it also includes a mixing chamber 40 ; the mixing chamber 40 is connected to the fourth accommodating space 35 and the third accommodating space 31 through the first pipeline 1 respectively; The mixing chamber 40 is connected to the sixth accommodating space 38 and the third accommodating space 31 through the first pipeline 1, respectively. After mixing the medicinal liquid, it is added into the fourth accommodating space 35 to improve the quality of the solution preparation.

Specifically, as shown in FIG. 21 , the mixing chamber 40 is an elastic body. When the liquid therein is filled and swelled, the restoring force of the elastic body acts on the liquid inside the mixing chamber 40 . If the mixing chamber 40 is connected to the external injection head 25, the elastic body squeezes the internal liquid when the corresponding switch is turned on, which can increase the injection pressure of the injection head 25. Therefore, through the resilience of the mixing chamber 40 itself, there are Helps stabilize and increase injection pressure.

Further, as shown in FIG. 21 , the mixing chamber 40 is connected to the sixth accommodating space 38 , and the medicinal liquid in the sixth accommodating space 38 can flow into the mixing chamber 40 through the second driving body 8 , and at the same time pass through the mixing chamber 40 . The effect of the external atmospheric pressure can make the liquid medicine in the mixing chamber 40 flow back into the sixth accommodating space 38, and the liquid medicine is fully stirred after repeatedly flowing into and out of the mixing chamber 40. Based on the same principle, as shown in FIG. 2 , the liquid dispensing tank 20 can also achieve the same function of the mixing chamber 40 to achieve uniform mixing of the medicinal liquid.

Specifically, in a preferred example, the liquid storage device housing 24 adopts an annular structure body. As shown in FIG. 9 , an annular channel is provided inside the annular structure body, and a plug 22 is fixed inside the annular channel. A driving body 4 includes an electric heating wire and a phase change material. One end of the electric heating wire is installed on the plug 22, and the other end of the electric heating wire is connected to the first driving rod 2. When the electric heating wire is energized and heated, the phase change material is heated. The phase change occurs so that the first driving rod 2 can be driven to move in the direction of the annular channel inside the annular structure, so that the third accommodating space 31 can be made larger or smaller, and then the fluid can flow into the third accommodating space 31 or the fluid can be removed from the annular structure. flow out from the third accommodating space 31 .

Specifically, as shown in FIG. 3 and FIG. 4 , the first valve 5 , the second valve 7 or the third valve 13 can adopt various structural forms. In one embodiment, the first valve 5 , the second valve 7 or the third valve 13 The valve 7 or the third valve 13 includes a first control rod 10 , a second control rod 11 , a control mechanism 12 and a joint shaft 14 , the first control rod 10 , the second control rod 11 are arranged crosswise and the first control rod 10. The second control rod 11 can be mutually rotated around the joint shaft 14 under the driving of the control mechanism 12. When the control mechanism 12 drives the ends of the first control rod 10 and the second control rod 11 to move away from each other, the The other ends of the first control rod 10 and the second control rod 11 are far away from each other, as shown in FIG. 4 , at this time the first valve 5 or the second valve 7 appears to be open; when the control mechanism 12 drives the first control When one end of the rod 10 and the second control rod 11 are close to each other, the other ends of the first control rod 10 and the second control rod 11 are close to each other, as shown in FIG. 3 , at this time, the first valve 5 or the second valve 7 The performance is closed; wherein, a second spring 24 is provided between the first control rod 10 and the second control rod 11 on the side close to the control mechanism 12, which can play an auxiliary buffer role in the valve opening and closing process.

Further, in another embodiment, as shown in FIG. 5 , the first valve 5 , the second valve 7 or the third valve 13 includes a control mechanism 12 , an installation carrier 15 , a control arm 16 , a support column 17 and a telescopic The control arm 16 includes a control end and a driving end. One end of the control mechanism 12, one end of the support column 17, and one end of the telescopic mechanism 18 are respectively installed on the mounting carrier 15. The control arm 16 is rotatable. Installed on the other end of the support column 17, the driving end of the control arm 16 rotates around the other end of the support column 17 under the drive of the control mechanism 12, so that the control end of the control arm 16 moves away from the fluid in the valve to achieve The first valve 5 , the second valve 7 or the third valve 13 are opened, and the telescopic mechanism 18 is provided with a first spring 19 , when the other end of the control mechanism 12 is away from the driving end of the control arm 16 , the first spring 19 can drive the telescopic mechanism 18 to drive the control end of the control arm 16 to move close to the fluid in the valve so as to realize the closing of the first valve 5 , the second valve 7 or the third valve 13 . In a specific application, the installation position of the support column 17 on the control arm 16 can be adjusted according to the actual application scene, so as to realize the action sensitivity of the control end when the control mechanism 12 exerts force on the driving end, and realize the corresponding enlargement or reduction of the force or displacement, such as As shown in FIG. 6 and FIG. 7 , the corresponding enlargement or reduction of the force or displacement to achieve the desired control effect, so as to achieve the desired control effect.

Further, in yet another embodiment, it includes a third balloon 44 and a second magnetic field control body, the third balloon 44 is arranged inside the first pipeline 1 and the second pipeline 6, and the first pipeline 1 and the second pipeline 6. The three bladders 44 are filled with switching fluid. When the second magnetic field control body does not apply a magnetic field, a second gap exists between the third bladder 44 and the inner wall of the first pipeline 1 or the second pipeline 6 , such as As shown in FIG. 12 , the first valve 5 and/or the second valve 7 are open at this time, and when the second magnetic field control body applies a magnetic field, as shown in FIG. Blocking of the line 1 or the second line 6 enables the closing of the first valve 5 , the second valve 7 or the third valve 13 .

In practical applications, in order to make the third bladder 44 achieve a better effect of blocking the pipeline, the first pipeline 1 and the second pipeline 6 can be provided with variable diameters, and the inner diameter of the variable diameter in the pipelines is smaller than The inner diameter of the pipeline can achieve better blocking of the pipeline when the third bladder 44 is deformed; the first pipeline 1 and the second pipeline 6 can also adopt a structure in which the cross-section of the internal flow channel is a polygon, such as a square , it can also increase the blocking effect on the pipeline when the third bladder 44 is deformed, and the specific design is reasonably selected according to the specific application scenario.

Specifically, in yet another embodiment, it includes a first capsule 41 , a second capsule 42 and a first magnetic field controller, the first capsule 41 and the second capsule 42 are respectively disposed in the first pipeline 1 Or both sides of the second pipeline 6 along the width direction, in a preferred example, the first capsule 41 and the second capsule 42 are filled with switching fluid, such as magnetorheological fluid, when the first magnetic field controls When the magnetic field is not applied to the body, there is a first gap between the first capsule 41 and the second capsule 42, as shown in FIG. 10, at this time the first valve 5 or the second valve 7 is open; when the first magnetic field When the control body applies a magnetic field, as shown in FIG. 11 , the first balloon 41 and the second balloon 42 are deformed and approached so as to block the first pipeline 1 or the second pipeline 6 to realize the first valve 5 or the first valve 5 . Second valve 7 is closed.

It should be noted that the fluid flowing in the pipeline is named as the working fluid, which is suitable for the case where the switching fluid and the working fluid are different types of fluids. The switching fluid is used to realize the switching of the valve. The working fluid is isolated to prevent mutual contamination, and the number of the capsules can be one or more, which can realize the opening and closing of the valve. For example, in Figures 10 and 11, two bladders are used to open or close the first valve 5 or the second valve 7; for another example, one bladder is used to realize the first valve 5 or the second valve in Figures 12 and 13. 7. The opening or closing of the valve, which can also be realized by two or more bladders.

Specifically, the control mechanism 12 can adopt various structural forms according to the actual application scenarios. As shown in FIG. 10 , FIG. 6 , and FIG. 7 , it is a fluid transmission displacement mechanism in the form of a connector, which can realize the amplification of force. Or a reduced device, under the same magnetic force, when the control mechanism 12 adopts the structure in FIG. 5 and FIG. 7, a larger driving stroke can be obtained, and when the control mechanism 12 adopts the structure in FIG. 6, a smaller driving stroke can be obtained. Therefore, it can be reasonably selected according to the needs of practical applications.

Further, the control mechanism 12 adopts a piezoelectric ceramic structure, and the opening and closing of the control mechanism 12 is realized by controlling the passing of the piezoelectric ceramic current, thereby realizing precise control; in a variation, the control mechanism 12 adopts a magnetostrictive structure. For the structure, the control mechanism 12 can be opened and closed by controlling the magnitude of the magnetic field applied to the magnetostrictive structure. In another variation, the control mechanism 12 uses an electromagnetic coil to cooperate with a permanent magnet structure to open and close the control mechanism 12 .

Further, the control mechanism 12 can also adopt various structural forms such as shape memory alloy driving bodies, hydraulic or pneumatic driving bodies, magnetorheological fluid driving bodies, electrorheological fluid driving bodies, thermal expansion driving bodies, and electromagnetic driving bodies to realize control. .

Specifically, the present invention can perform precise solution preparation. As shown in FIG. 14 , the number of liquid dispensing devices is set according to the type of medicinal liquid required in the solution preparation, and multiple medicinal liquids are mixed in the liquid dispensing tank 20 and then enter the finished product tank 21. Mixed spare.

It should be noted that the medicinal liquid in the present invention is one type of solution preparation, and can also be the preparation of other liquids. Therefore, the present invention can be applied to the preparation of various liquids and has a wide range of applications.

Taking the preparation liquid as an example and in conjunction with Fig. 1 and Fig. 16, the working principle of the present invention is as follows:

Select the number of liquid dispensing devices according to the type of liquid medicine that needs to be added to the liquid medicine. For example, the liquid medicine needs to be mixed with 3 Chinese medicine liquids, which are marked as A, B, and C. It is assumed that the total preparation volume of the liquid medicine is 25ml, of which, A is 7ml , B is 8ml, C is 10ml, according to the actual situation of the liquid preparation, input the parameter information of the liquid medicine into the control device, and the control device controls the first valve 5, the second valve 7, and the second driving body 8 to complete the medicine according to the input instructions. The control device controls the injection device to inject into the human body according to the preset information to complete the automatic injection task.

Specifically, in the process of preparing the liquid medicine, first close the second valve 7 and open the first valve 5, and the control device controls the second driving body 8 to drive the linkage rod 9 to move away from the fourth accommodating space 35. The The fourth accommodating space 35 is a closed space. As the space of the fourth accommodating space 35 increases, the liquid medicine in the liquid storage device is sucked into the fourth accommodating space 35. When the amount of the fourth accommodating space 35 inhaled reaches the set requirement When the control device controls the second driving body 8 to stop driving; secondly, close the first valve 5 and open the second valve 7, because the linkage rod 9 is connected with the outside atmosphere, the fifth accommodating space 37 is a closed space, when the second drive is released. When the driving force of the body 8, the fifth accommodating space 37 and the outside atmosphere generate a pressure difference, under the action of the outside atmospheric pressure, the linkage rod 9 moves in the direction close to the fourth accommodating space 35, at this time the fourth accommodating space 35 The volume becomes smaller, and the medicinal liquid in the fourth accommodating space 35 is pressed into the liquid dispensing tank 20 through the second pipeline 6. When the three medicinal liquids A, B, and C are all added to the dispensing solution according to the set volume of the solution After the tank 20, a variety of medicinal liquids are mixed in the liquid dispensing tank 20, and the medicinal liquids in the liquid dispensing tank 20 are mixed and flow into the finished product tank 21, and the injection of the medicinal liquid is completed by the injection device under the control of the control device.

It should be noted that, in the process of preparing the medicinal solution of the present invention, the process of inhaling the medicinal solution in the fourth accommodating space 35 requires energy consumption. Power consumption is realized by the pressure difference between the fifth accommodating space 37 and the outside atmosphere. The whole process is controlled with high precision. The control device can automatically select the number of liquid dispensing devices according to the input information command, realizing the automation of liquid medicine preparation and injection.

The invention realizes the automatic preparation of the solution based on the reciprocating driving device and the control device, and the whole preparation system is sealed and connected through the pipeline, there is no splashing and volatilization of the medicinal solution, it is safe, reliable, precise and controllable, and has no noise, and can realize a variety of medicinal solutions. Compared with the prior art, the medicinal liquid prepared at the same time has the advantages of simple structure, convenient operation and wide application.

In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying the indicated device. Or elements must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present application.

Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essential content of the present invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily, provided that there is no conflict.

Claims (10)

1. A solution preparation and injection system based on a reciprocating drive device, characterized in that it comprises a liquid storage device, a first pipeline (1), a first valve (5), a second pipeline (6), a second valve (7), control device and liquid dispensing device; A fourth accommodating space (35) is provided inside the liquid dispensing device; The fourth accommodating space (35) is connected with the liquid storage device through the first pipeline (1); The fluid in the fourth accommodating space (35) flows out through the second pipeline (6); The first valve (5) and the second valve (7) are respectively installed on the first pipeline (1) and the second pipeline (6), and the control device is respectively connected with the first valve (5) and the second pipeline (6). The valve (7) is electrically connected; The number of the liquid dispensing devices can be set according to the type of fluid required in the solution configuration, and the number of the liquid storage devices matches the number of the liquid dispensing devices. 2 . The solution preparation and injection system based on a reciprocating drive device according to claim 1 , wherein a fluid actuator and a power actuator are provided in the liquid dispensing device, and a second power actuator is provided in the power actuator. 3 . The driving body (8) adopts any one of the following structural forms: - comprising a linkage rod (9), the linkage rod (9) is provided with a first connection end (33) and a second connection end (36), the first connection end (33) extends to the interior of the fluid actuator and a fourth accommodating space (35) is formed between it and the fluid actuator; The second connecting end (36) extends into the interior of the power actuator and forms a fifth accommodating space (37) with the power actuator. The fifth accommodating space (37) is a closed space, and the second drive The body (8) is installed in the fifth accommodating space (37); The second driving body (8) is electrically connected to the control device; The linkage rod (9) moves away from the fifth accommodating space (37) under the driving of the second driving body (8); The fifth accommodating space (37) is a closed space, and the linkage rod (9) is communicated with the external atmosphere. When the driving of the second driving body (8) is released, under the action of the external atmospheric pressure, the linkage rod (9). ) moves toward the direction close to the fourth accommodating space (35), and at this time, the volume of the fourth accommodating space (35) becomes smaller. - One end of the power actuator extends into the interior of the fluid actuator and forms a sixth accommodating space (38) with the fluid actuator, and the other end of the power actuator is a free end; The power actuator includes a fixed rod (39) and a moving casing (34), the fixed rod (39) is installed inside the moving casing (34), and the fixed rod (39) is connected to the moving casing (34). A first accommodating space (3) is formed between ), and the second driving body (8) is installed in the first accommodating space (3); The second driving body (8) is electrically connected to the control device; Driven by the second driving body (8), the moving casing (34) moves along the fixing rod (39) toward the direction in which the volume of the first accommodating space (3) increases; The first accommodating space (3) is a closed space, and the fixed rod (39) is communicated with the outside atmosphere through the moving casing (34). , the moving casing (34) moves along the fixing rod (39) in the direction in which the volume of the first accommodating space (3) becomes smaller, and the volume of the sixth accommodating space (38) becomes smaller at this time. 3. The solution preparation and injection system based on the reciprocating drive device according to claim 1, characterized in that, further comprising a liquid replenishing device and a third valve (13); The third valve (13) is installed on the first pipeline (1); The liquid replenishing device is installed on the first pipeline (1) and is arranged between the first valve (5) and the third valve (13); The liquid infusion device is provided with a liquid infusion device housing (24) and a first drive rod (2) inside, and the inside of the liquid infusion device housing (24) is divided into a second accommodating space (2) by the first driving rod (2). 30) and the third accommodating space (31); Both the second accommodating space (30) and the third accommodating space (31) are closed spaces, and the second accommodating space (30) is provided with a first driving body (4); The third accommodating space (31) is respectively connected to the fourth accommodating space (35) and the liquid storage device through the first pipeline (1); or The third accommodating space (31) is respectively connected to the sixth accommodating space (38) and the liquid storage device through the first pipeline (1); The first driving body (4) is electrically connected to the control device; When the first driving body (4) drives the first driving rod (2) to move close to the third accommodating space (31), the first valve (5) is opened, and the fluid in the third accommodating space (31) passes through The first pipeline (1) enters the fourth accommodating space (35); When the driving of the first driving body (4) is released, the third valve (13) is opened and the first valve (5) is closed. Under the action of the external atmospheric pressure, the first driving rod (2) is kept away from the third accommodating space ( 31) Move to suck the fluid in the liquid storage device into the third accommodating space (31). 4. The solution preparation and injection system based on reciprocating drive device according to claim 3, is characterized in that, described first valve (5), second valve (7), third valve (13) respectively adopt following any A form of structure: - comprising a first control rod (10), a second control rod (11), a control mechanism (12) and a joint shaft (14), the first control rod (10), the second control rod (11) are arranged crosswise and The first control rod (10) and the second control rod (11) can mutually rotate around the joint shaft (14) under the driving of the control mechanism (12); When the control mechanism (12) drives one end of the first control rod (10) and the second control rod (11) to move away from each other, the first control rod (10) and the second control rod (11) The other ends are away from each other, at this time the first valve (5) or the second valve (7) appears to be open; When the control mechanism (12) drives one end of the first control rod (10) and the second control rod (11) to approach each other, the first control rod (10) and the second control rod (11) The other ends are close to each other, and the first valve (5) or the second valve (7) is closed at this time; - comprising a control mechanism (12), a mounting carrier (15), a control arm (16), a support column (17) and a telescopic mechanism (18); The control arm (16) includes a control end and a driving end; One end of the control mechanism (12), one end of the support column (17), and one end of the telescopic mechanism (18) are respectively mounted on the mounting carrier (15), and the control arm (16) is rotatably mounted on the support column ( 17) at the other end; The driving end of the control arm (16) rotates around the other end of the support column (17) under the driving of the control mechanism (12), so that the control end of the control arm (16) is actuated to realize the first valve (5) and/or opening of the second valve (7); When the control mechanism (12) is away from the driving end, the telescopic mechanism (18) can drive the driving end to close the first valve (5) and/or the second valve (7); - comprising a first capsule (41), a second capsule (42) and a first magnetic field control body; The first bag body (41) and the second bag body (42) are respectively disposed on both sides along the width direction inside the first pipeline (1) and the second pipeline (6). 41), the second capsule (42) is filled with switching fluid; When the first magnetic field control body does not apply a magnetic field, there is a first gap between the first capsule body (41) and the second capsule body (42). At this time, the first valve (5) and/or the second valve (7) ) to open; When the first magnetic field control body applies a magnetic field, the first balloon (41) and the second balloon (42) are deformed and approached so as to block the first pipeline (1) and/or the second pipeline (6). to realize the closing of the first valve (5) and/or the second valve (7); - comprising a third balloon (44) and a second magnetic field control body, the third balloon (44) is arranged inside the first pipeline (1) and the second pipeline (6), the third balloon The body (44) is filled with switching fluid; When the second magnetic field control body does not apply a magnetic field, a second gap exists between the third bladder (44) and the inner wall of the first pipeline (1) or the second pipeline (6), and the first valve (5) and/or the second valve (7) is open; When the second magnetic field control body applies a magnetic field, the third bladder (44) deforms so as to block the first pipeline (1) and/or the second pipeline (6) to realize the first valve (5) and /or closing of the second valve (7). 5. The solution preparation and injection system based on a reciprocating drive device according to claim 4, wherein the control mechanism (12) comprises any one of the following structural forms: - Piezoelectric ceramic structures; - magnetostrictive structures; - shape memory alloy drive body; - hydraulic or pneumatic drive bodies; - magnetorheological fluid driver; - electrorheological fluid driver; - thermal expansion drive body; - Electromagnetic drive body; - Electromagnetic permanent magnet drive. 6. The solution preparation and injection system based on a reciprocating driving device according to claim 2 or claim 4, wherein the first driving body (4) or the second driving body (8) adopts any one of the following kind of drive structure: - motor; - Phase change driver; - Smart material structures; - Pneumatic drive body; - Hydraulic drive body. 7. The solution preparation and injection system based on a reciprocating drive device according to claim 3, characterized in that, the liquid replenishing device housing (24) adopts an annular structure; An annular channel is arranged inside the annular structure, a plug (22) is fixed inside the annular channel, and the first driving rod (2) and the plug (22) divide the annular channel into second accommodation spaces (30) and a third accommodating space (31). 8. The solution preparation and injection system based on the reciprocating drive device according to claim 3, characterized in that, further comprising a mixing chamber (40); The mixing chamber (40) is respectively connected to the fourth accommodating space (35) and the third accommodating space (31) through the first pipeline (1); or The mixing chamber (40) is respectively connected to the sixth accommodating space (38) and the third accommodating space (31) through the first pipeline (1). 9. The solution preparation and injection system based on a reciprocating drive device according to claim 1, characterized in that it further comprises an injection device, and the injection device comprises an injection head (25), one end of the injection head (25) is connected to The second pipeline (6) is connected, and the other end of the injection head (25) is a free end; The number of the injection heads (25) is one or more. 10. The solution preparation and injection system based on the reciprocating drive device according to claim 1, characterized in that, further comprising a solution preparation tank (20) and a finished product tank (21); The liquid dispensing tank (20) is respectively connected with the second pipeline (6) and the finished product tank (21).

Images