TWI653068B - Drug delivery device - Google Patents

Abstract

A drug delivery device includes a main casing, and a latch seat is provided inside the bottom of the accommodation slot. A main control unit is accommodated in the main casing. The main control unit has a built-in control program. A transmission module is arranged in the housing and is electrically connected to the main control unit. The transmission module further includes a transmission unit which is linked with a rotating rod, and a push rod is screwed inside the rotating rod. At least one axial groove is arranged on the outer peripheral surface, and the groove is accommodated in the latch seat of the accommodating groove to restrict the rotation of the push rod and generate a linear extension. In addition, a key unit is provided on the outer surface of the main casing. The key unit is electrically connected to the main control unit. Finally, a battery unit is provided in the main housing, and the main control unit is electrically connected to provide power to operate using electrical components.

Description

Drug delivery device

The present invention relates to a syringe, and more particularly to a drug delivery device with automatic control.

At present, common medical behaviors are performed by injecting drugs for routine treatment, and injecting drugs are performed by medical staff or users themselves using syringes. For example, patients with diabetes inject insulin doses by users themselves, and There is no need to return to the clinic or hospital to be beaten by medical staff.

And in order to facilitate the use of injection devices for drug delivery by people other than medical personnel, there are many injection devices designed for this purpose, such as common prefilled disposable injection devices and reusable ones. Pen type injection device; the design of this type of prefilled disposable injection device is relatively simple, like the old syringe in the past, the difference is that this type of prefilled disposable injection device is usually a pharmaceutical company or aseptic filling packer It is made and does not need to be filled by oneself, which is quite convenient, but the disadvantage is that it is disposable. In addition to not being environmentally friendly, it requires recycling by a professional recycler to avoid pollution.

Another type of reusable pen-type injection device can solve the shortcomings of the aforementioned disposable type injection device. It can be reused by repeatedly filling the medicine. This type of pen-type injection device is designed to perform injection through an automatic mechanism. The automatic mechanism compresses the drug for injection. In addition to the automatic mechanism driving the needle into the skin for injection, there is also a design of the same automatic mechanism. The needle can be brought back to avoid accidentally stabbing others; however, although the automatic mechanism of such pen-type injection devices is convenient, the assembly of components is complex and the parts are diverse, and the mechanism is prone to structural failures, which also has disadvantages.

Regardless of the aforementioned prefilled disposable injection device or pen injection device, there are common disadvantages, that is, they must be controlled manually, different users exert different forces, and have different injection characteristics for different drugs. , There may be deviations in benefits, all of which need to be further improved.

In view of the above-mentioned shortcomings, the main object of the present invention is to provide a drug delivery device. A transmission module is built in the device, which is combined with electronic control and injection characteristics of different drugs. The transmission module is driven by program control to provide different Injection power to enhance the injection efficiency of the drug.

In order to achieve the above-mentioned object, the present invention mainly provides a drug delivery device, which includes a main casing, an accommodation slot is provided in the main casing, and at least one latch seat is provided on the inner side of the bottom of the accommodation slot. A main control unit is housed in the main housing. The main control unit has a built-in control program for controlling the functioning of the device. A transmission module is arranged in the housing groove of the main housing. The main control unit is electrically connected. The transmission module further includes a transmission unit, which is the power source of the transmission module. The transmission unit is linked with a rotating rod, and a push rod is screwed inside the rotating rod. At least one axial groove is provided on the outer peripheral surface, and the groove is used to receive a latch seat opposite to the receiving groove, so as to restrict the rotation of the push rod and generate a linear extension, and is outside the main casing. A button unit is provided on the surface, and the button unit is electrically connected to the main control unit. A firing unit is provided on the top surface of the main housing and is electrically connected to the main control unit and the transmission module for driving. The transmission module is actuated. Finally, a battery unit is provided in the main casing, and the main control unit is electrically connected, and electric power is provided to make the main control unit and other components requiring electricity operate.

In order to make the above and other objects, features, and advantages of the present invention more comprehensible, preferred embodiments are described below in detail with reference to the accompanying drawings, as follows.

1‧‧‧main casing

11‧‧‧First case

111‧‧‧Slotted

112‧‧‧ concave groove

12‧‧‧Second shell

121‧‧‧slot

13‧‧‧Receiving slot

14‧‧‧ the first groove

15‧‧‧Second groove

16‧‧‧ card seat

2‧‧‧drive module

21‧‧‧Drive unit

211‧‧‧shaft hole

22‧‧‧ shaft

23‧‧‧Rotating lever

231‧‧‧set of holes

24‧‧‧The first fixed seat

25‧‧‧Second fixed seat

26‧‧‧Put

261‧‧‧Groove

27‧‧‧Buzzer

3‧‧‧Master Control Unit

4‧‧‧ Power supply unit

5‧‧‧ firing unit

6‧‧‧ Connection unit

7‧‧‧display unit

8‧‧‧ Button Unit

81‧‧‧ button

9‧‧‧ Cartridge Module

91‧‧‧ Cartridge

92‧‧‧ Needle

93‧‧‧Activity Block

94‧‧‧shell

941‧‧‧Half-shell

942‧‧‧shell groove

The first figure is an exploded view of the three-dimensional structure of the present invention.

The second figure is a three-dimensional combination diagram of the present invention.

The third figure is an exploded perspective view of the transmission module of the present invention.

The fourth figure is a schematic sectional view of the operation of the present invention.

The fifth figure is a sectional view of a partial structure of the present invention.

The sixth figure is a schematic sectional view of another operation of the present invention.

Please refer to the first figure, which is an exploded view of the three-dimensional structure of the present invention. As shown in the figure, the drug delivery device of the present invention mainly includes a main casing 1 and a transmission module 2, wherein the main casing 1 is composed of a first casing 11 and a second casing 12, In this embodiment, the first casing 11 and the second casing 12 are connected in a corresponding combination. The transmission module 2 is housed in the main casing 1, and the first casing 11 and the second casing 12 are received in the main casing 1. A housing groove 13 is formed after the housing 12 is correspondingly assembled. The housing groove 13 is used for housing the components of the transmission module 2, and a first recess is provided in the main housing 1. The groove 14 and the second groove 15 are formed in this embodiment after the first casing 11 and the second casing 12 are correspondingly assembled. The slot 14 is used for accommodating a main control unit 3. In this embodiment, the main control unit 3 is a main control circuit board. The main control unit 3 has a built-in control program for controlling the function and operation of the device. , The second groove 15 houses a power supply unit 4, The power supply unit 4 is electrically connected to the main control unit 3 and provides power to make the main control unit 3 and other power-consuming components operate. In this embodiment, the power supply unit 4 is a rechargeable battery.

Continue to the first figure. A firing unit 5 is provided on the top surface of the main casing 1. The firing unit 5 is electrically connected to the transmission module 2 and the main control unit 3. In this embodiment, the firing unit 5 is a firing switch. Is used to drive the transmission module 2 to actuate; and a connecting unit 6 is provided on the top surface of the main casing 1, and in this embodiment, a slot 121 is formed on the top of the second casing 12. The slot 121 is used to accommodate the connection unit 6. The connection unit 6 is electrically connected to the main control unit 3. The connection unit 6 is a type of Micro USB. The external host computer is updated by updating the program version built in the main control unit 3; in addition, a slot 111 is formed on the outer surface of the first casing 11, and the slot 111 is rectangular in this embodiment. The slot 111 houses a display unit 7, as shown in the three-dimensional combination diagram of the second figure. In this embodiment, the display unit 7 is a miniature screen. The display unit 7 is electrically connected to the main control unit. 3. It is used to display the operation program or display the operation status. A concave groove 112 is provided below the display unit 7. The concave groove 112 houses a key unit 8 which is electrically connected to the main control unit 3 and the key unit 8. It is made up of keys 81. In this embodiment, the concave groove 112 and the key unit 8 are circular.

Please refer to the third figure, which is an exploded perspective view of the transmission module of the present invention. As shown in the figure, as described above, the transmission module 2 is housed in the main casing 1 and is electrically connected to the main control unit 3 and the power supply unit 4 as a power source of the drug delivery device of the present invention. The transmission module 2 further includes a transmission unit 21, which is the power source of the transmission module 2. In this embodiment, the transmission unit 21 is any one of a gear box or a transmission, but this is not the case. For limitation, a shaft hole 211 is provided on the transmission unit 21, and the shaft hole 211 is pivotally connected to a shaft 22; in addition, the transmission module 2 It also includes a rotating rod 23, which is a hollow rod body. A first fixing base 24 and a second fixing base 25 are respectively sleeved on the two ends of the rotating rod 23. The first fixing base 24 and the second fixing base 25 are It is a hollow bearing used to fix the position of the rotating rod 23 in the main body shell 1, and the rotating rod 23 is allowed to rotate in the first fixing base 24 and the second fixing base 25. A sleeve hole 231 is provided on the surface, and the sleeve hole 231 is pivotally connected to the other end of the shaft 22, so that the transmission unit 21 drives the rotation rod 23 to interlock, and then a push rod 26 is screwed in the rotation rod 23, and An outer screw is provided on the outer peripheral surface of the push rod 26, and an inner screw for screwing is provided on the inner peripheral surface of the rotating rod 23, as shown in the schematic cross-sectional view of the operation in the fourth figure. At least one axial groove 261 is provided on the outer peripheral surface. In this embodiment, a plurality of grooves 261 are provided on the push rod. The grooves 261 are used to receive the grooves 261 opposite to the bottom of the receiving groove 13. The latch seat 16 protruding from the inner position is shown in the first figure; in addition, a buzzer 27 is provided on one side of the transmission unit 21, and the buzzer 27 is It is exposed outside the main casing 1 and is electrically connected to the main control unit 3 for emitting a status sound.

See the first figure. Finally, the drug delivery device of the present invention further includes a cartridge module 9 which is assembled on the bottom of the main casing 1 to extend the cartridge of the push rod 26 of the transmission module 2 In the module 9, the cartridge module 9 further includes a hollow cartridge 91. The cartridge 91 is filled with a medicine, and a needle 92 is connected to the bottom end of the cartridge 91, and a cartridge 92 is provided in the cartridge 91. The movable seat 93 is a piston in this embodiment. The movable seat 93 is used to be pushed by the push rod 26 to push the medicine in the medicine cartridge 91 out of the needle 92, and the medicine cartridge The module 9 includes a protective shell 94 covering the cartridge 91. In this embodiment, the protective shell 94 is composed of a corresponding half shell 941, and has a shell inside the protective shell 94. The groove 942 is used for receiving the medicine cartridge 91, and the needle 92 is exposed outside the protective shell 94.

Please refer to the fourth figure, which is a schematic sectional view of the operation of the present invention. as the picture shows, The drug delivery device of the present invention uses a program built in the main control unit 3 to configure the delivery speed for different drugs. The user inputs the type of the assembled cartridge module 9 through the key unit 8 to control the transmission module. Transmission speed of group 2; and when the transmission module 2 is running, the transmission unit 21 drives the rotation rod 23 to rotate horizontally through the shaft 22, and the push rod 26 screwed inside the rotation rod 23 receives The latch seat 16 confined in the main housing 1 restricts the function without rotating, as shown in the partial structural cross-sectional view of the fifth figure, which causes the push rod 26 to move linearly to extend outward and into the cartridge 91 And push the movable seat 93 to slide inside the cartridge 91, so that the movable seat 93 pushes the medicine in the cartridge 91 to flow out, as shown in another operation schematic sectional view of the sixth figure, to complete the drug delivery in an automated manner. Homework.

However, the above-mentioned embodiment is a preferred implementation example. When the implementation scope of the present invention cannot be limited by this, equivalent changes or modifications made according to the scope of the patent application and the contents of the description of the present invention shall all belong to the following of the present invention. Patent coverage.

Claims (20)

A drug delivery device includes: a main casing, an accommodating slot is provided in the main casing, and at least one latch seat is located at the inner side of the bottom of the accommodating slot; a main control unit is disposed in In the main casing, a control program is built in the main control unit to control the functional operation of the device; a transmission module is arranged in a receiving slot of the main casing and is electrically connected to the main control unit The transmission module further includes: a transmission unit, which is the power source of the transmission module; a rotating rod, which is a hollow rod body, which is connected with the transmission unit and generates linkage; a push rod, which is screwed Inside the rotating rod, at least one axial groove is provided on the outer peripheral surface of the push rod, and the groove is used for receiving a latch seat opposite to the receiving slot to restrict the rotation of the push rod and generate a straight line. Extension; a key unit is provided on the outer surface of the main casing, the key unit is electrically connected to the main control unit; a firing unit is provided on the main casing and electrically connected to the main control A unit and the transmission module for driving the transmission module to operate; a battery unit Department disposed within the main housing and electrically connected to the control unit, and provide power to the main control unit and other elements of the operating power required. The drug delivery device according to item 1 of the scope of patent application, wherein the main casing is a corresponding combination of a first casing and a second casing. The drug delivery device according to item 2 of the scope of patent application, wherein a first groove and a second groove are provided in the main housing, and the first groove is used for receiving the main control unit and the second concave The slot houses the power supply unit. The drug delivery device according to item 3 of the scope of patent application, wherein the first groove and the second groove are formed by correspondingly combining the first shell and the second shell. The drug delivery device according to item 1 of the patent application scope, wherein the main control unit is a main control circuit board. The drug delivery device according to item 1 of the application, wherein the transmission unit is any one of a gear box or a transmission. The drug delivery device according to item 1 of the scope of patent application, wherein the transmission unit is provided with a shaft hole, the shaft hole is pivotally connected to a shaft, and the rotation rod is provided with a sleeve hole on the top surface of one end. The sleeve hole is pivotally connected to the other end of the shaft, so that the transmission unit drives the rotating rod to be linked. The drug delivery device according to item 1 of the scope of the patent application, wherein a first fixing seat and a second fixing seat are respectively set on the two ends of the rotating rod to fix the position of the rotating rod in the main body shell, The rotating rod has a rotating effect in the first fixing base and the second fixing base. The drug delivery device according to claim 8 of the application, wherein the first fixing seat and the second fixing seat are hollow bearings. The drug delivery device according to item 1 of the patent application scope, wherein an outer screw is provided on the outer peripheral surface of the push rod, and an inner screw is provided on the inner peripheral surface of the rotating rod for screwing the outer screw. The drug delivery device according to item 1 of the patent application scope, wherein the power supply unit is a rechargeable battery. The drug delivery device according to item 1 of the scope of patent application, further includes a connection unit disposed in a slot on the top surface of the main casing, and the connection unit is electrically connected to the main control unit. The drug delivery device according to item 12 of the application, wherein the connection unit is a Micro USB. The drug delivery device according to item 1 of the patent application scope, wherein a slot is formed on the outer surface of the main casing, and the slot is provided with a display unit, and the display unit is electrically connected to the main control unit, and To display the operating procedure or the operating status. The drug delivery device according to item 14 of the application, wherein the display unit is a miniature screen. The drug delivery device according to item 1 of the scope of patent application, wherein a buzzer is provided on one side of the transmission unit, the buzzer is exposed outside the main casing, and is electrically connected to the main control unit for Make a status sound. The drug delivery device according to item 1 of the scope of patent application, wherein an outer surface of the first housing has a concave groove, the concave groove is provided below the display unit, and the concave groove is configured to accommodate the key unit. The drug delivery device described in item 1 of the scope of patent application, further includes a cartridge module, which is assembled on the bottom of the main casing so that the push rod of the transmission module extends the cartridge In the module, the cartridge module further includes: a cartridge, the cartridge is filled with medicine, and a needle is connected to the bottom end of the cartridge; a movable seat is arranged in the cartridge, the activity The seat is used to be pushed by the push rod top pusher to push the medicine inside the cartridge out of the needle. The drug delivery device according to item 18 of the application, wherein the movable seat is a piston. The drug delivery device according to item 18 of the scope of the patent application, wherein the cartridge module includes a casing, the cartridge is enclosed therein, and the casing is composed of a corresponding half shell, and The protective shell has a shell groove inside to accommodate a cartridge, and the needle is exposed outside the protective shell.