CN110665094A - A fully automatic electronic insulin injection pen - Google Patents

Abstract

The invention discloses a fully automatic electronic insulin injection pen, which comprises an outer casing and a sliding base. One side of the sliding base is provided with a side flip-top type medicine storage bin, and a medicine bottle is installed in the medicine storage bin, which is matched with medicine. The bottle is provided with a medication injection drive device on the sliding base, the medication injection drive device includes a drive rod, the sliding base is provided with an injection needle implantation drive device, and between the outer casing and the medicine storage bin is configured to be The medicine storage bin can be opened only after the drive rod is retracted in place. The front end of the medicine storage bin is provided with an injection needle safety device which is configured to open the medicine storage bin only when the injection needle is completely removed. The above-mentioned automatic electronic insulin injection pen is not only simple in structure, convenient and quick to change the medicine, and stable and reliable in operation; and the medicine storage bin can only be opened after the injection needle is removed and the driving rod is fully retracted in place, which avoids the need for users to Misoperation occurs, which improves the safety and reliability of the automatic syringe.

Description

A fully automatic electronic insulin injection pen

technical field

The invention relates to an electronic insulin injection pen, in particular to a fully automatic electronic insulin injection pen.

Background technique

Most of the existing fully automatic electronic insulin injection pens have achieved fully automatic injection. In recent years, people have designed and developed a side flip-type injection pen. This fully automatic electronic insulin injection pen avoids repeated disassembly of the shell, facilitates dressing changes, and improves the service life of the electronic pen injection pen. However, the side flip-top-type syringes on the market generally have the disadvantages of poor operation stability and easy misoperation during dressing change.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a fully automatic electronic insulin injection pen, so as to solve the problems in the prior art that the fully automatic electronic insulin injection pen has poor running stability and is prone to misoperation when changing dressings.

For this purpose, the present invention adopts the following technical solutions:

A fully automatic electronic insulin injection pen, which includes an outer casing and a sliding base that can be reciprocally slidable in the outer casing, wherein a side flip-type medicine storage bin is arranged on one side of the sliding base, and the A medicine bottle is installed in the medicine storage compartment, and a medicine injection driving device is arranged on the sliding base in cooperation with the medicine bottle. A reciprocating-sliding injection needle is implanted into a driving device, and a drug storage bin safety device is arranged between the outer casing and the drug storage bin, which is configured to enable the drug storage bin to be opened only when the drive rod is retracted in place. The front end of the medicine store is detachably mounted with an injection needle, and the front end of the medicine store is provided with an injection needle safety device configured to enable the medicine store to be opened only after the injection needle is completely removed.

In particular, the injection needle implantation drive device includes a first drive motor, a first reduction gear set, a first screw rod, a toggle block and two stoppers, and the output shaft of the first drive motor is connected to the first reduction gear The input end of the gear set, the output end of the first reduction gear set is connected with the first screw rod, the two blocks are fixed on the sliding base at intervals, and one end of the toggle block is sleeved through an internal thread It is arranged outside the first screw rod, and the other end is located between the two blocks. The drug injection driving device includes a second driving motor, a second reduction gear set, a second screw rod and a driving rod, so The output shaft of the second drive motor is connected to the input end of the second reduction gear set, the output end of the second reduction gear set is connected to the second screw rod, and the drive rod is rotatably sleeved on the second screw rod outside.

In particular, one side of the sliding base is provided with a motor bracket and a screw bracket at intervals, the first driving motor is mounted on the motor bracket, and the first screw rod is rotatably installed on the screw bracket The first reduction gear set is assembled between the motor bracket and the screw bracket, and the sliding base is provided with a sliding rod, and the sliding rod is arranged through the motor bracket and the screw bracket.

In particular, the safety device for the medicine storage bin includes a fixed seat, a medicine storage bin and a driving rod, the fixing base is provided with a toggle switch, and one end of the medicine storage bin is rotatably assembled on the fixed base through the first rotating shaft On the seat, the bottom of the other end is provided with a buckle, and the drive rod can be movably assembled in the drive sleeve, wherein the end of the drive sleeve can be telescopically assembled with a limit ring, and the limit ring is connected to the drive sleeve. A first elastic member is arranged between the driving sleeves for pushing the limit ring to move toward the direction close to the medicine storage bin. The drive rod is arranged through the limit ring and has a head radius larger than the inner diameter of the limit ring. A driving rocker arm is rotatably provided on the fixing seat through a second rotating shaft, a second elastic member used to reset the driving rocker arm is installed on the second rotating shaft, and the bottom of the toggle switch is provided with a limit A limit slot is set on the limit block, one end of the driving rocker arm is located on one side of the limit ring, and the other end is clamped in the limit slot for limit, and the fixed seat is on the A sliding plate is arranged under the driving rocker arm, and a clamping hole is formed on the sliding plate to cooperate with the buckle, and a third elastic member for resetting the sliding plate is arranged on the sliding plate. A transmission lever is rotatably assembled between the sliding plate and the limit block through a third rotating shaft, and two ends of the transmission lever are respectively arranged corresponding to the limit block and the sliding plate.

In particular, the first rotating shaft is equipped with a fourth elastic member for automatically popping open the medicine storage bin.

In particular, the medicine storage bin is provided with a clamping head adapted to the toggle switch.

In particular, the injection needle safety device includes a pressing block which is assembled on the bottom of the front end of the medicine storage compartment and can slide back and forth in the horizontal direction. The pressing block is provided with an elongated hole, and a guide pin is arranged in the elongated hole. When the injection needle is assembled on the medicine storage bin, one end of the pressing block is pressed by the injection needle to limit the position, and the other end is abutted against the end of the fixed seat to limit the position.

In particular, the pressing block has an “L”-shaped structure as a whole, including a horizontal side and a vertical side, the end of the medicine storage bin is provided with a notch for assembling the pressing block, and the bottom of the notch extends downward with a hinge. The guide pin is arranged on the hinged seat.

In particular, the elongated hole is opened on the horizontal edge, the vertical edge is located in the notch, and when the injection needle is assembled on the drug storage bin, the outer side of the vertical edge and the end face of the bin body flush.

The beneficial effects of the present invention are that, compared with the prior art, the fully automatic electronic insulin injection pen is not only simple in structure, convenient and quick to change dressings, and stable and reliable in operation; and the medicine storage bin can only be used when the injection needle is removed and the driving rod is fully retracted. The medicine storage bin can only be opened after being retracted in place, which avoids misoperation by the user and improves the safety and reliability of the automatic syringe.

Description of drawings

1 is a schematic three-dimensional structure diagram of a fully automatic electronic insulin injection pen provided by a specific embodiment of the present invention;

2 is a schematic diagram of the internal structure of a fully automatic electronic insulin injection pen provided by a specific embodiment of the present invention;

3 is a schematic three-dimensional structure diagram of a driving device of a fully automatic electronic insulin injection pen provided by a specific embodiment of the present invention;

4 is a schematic three-dimensional structural diagram of an injection needle implantation drive device of a fully automatic electronic insulin injection pen provided by a specific embodiment of the present invention;

5 is a schematic three-dimensional structural diagram of a drug delivery and injection drive device of a fully automatic electronic insulin injection pen provided by a specific embodiment of the present invention;

6 is an exploded view of the safety and security device of the drug storage compartment of the fully automatic electronic insulin injection pen provided by the specific embodiment of the present invention;

Fig. 7 is the assembly drawing of the safety and security device of the medicine storage compartment of the fully automatic electronic insulin injection pen provided by the specific embodiment of the present invention;

8 is a schematic three-dimensional structural diagram of an injection needle safety safety device of a fully automatic electronic insulin injection pen provided by a specific embodiment of the present invention;

9 is a schematic three-dimensional structural diagram of a pressing block of an injection needle safety safety device of a fully automatic electronic insulin injection pen provided by a specific embodiment of the present invention.

Detailed ways

The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or an intervening component may also be present. When a part is said to be "connected" to another part, it can be directly connected to the other part or there may be an intervening part at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1 to FIG. 9 . In this embodiment, a fully automatic electronic insulin injection pen includes an outer casing 1 and a sliding base 2 that can be reciprocally slidable inside the outer casing 1 . There are a firing key 3, a plurality of function keys 4, a display screen 5, an injection needle assembly port 6 and a detachable battery assembly cover 7, the bottom of the sliding base 2 is provided with a mounting plate 8, and the mounting plate 8 is fixed in the outer casing 1 , and its two sides are provided with sliding grooves 9 , the bottom of the sliding base 2 is provided with sliding rails 10 on both sides, and the sliding rails 10 are arranged in the sliding grooves 9 . One side of the sliding base 2 is provided with an injection needle implantation drive device for driving the reciprocating movement of the sliding base 2. The injection needle implantation drive device includes a first drive motor 11, a first reduction gear set 12, and a first screw rod. 13. The toggle block 14 and the two stoppers 15, one side of the sliding base 2 is provided with a motor bracket 16 and a screw bracket 17 at intervals along its length direction, the first drive motor 11 is installed on the motor bracket 16, the first The screw 13 is rotatably mounted on the screw bracket 17 , the first reduction gear set 12 is assembled between the motor bracket 16 and the screw bracket 17 , and the output shaft of the first drive motor 11 is connected to the input of the first reduction gear set 12 The output end of the first reduction gear set 12 is connected with the first screw rod 13 , the two blocks 15 are fixed on the sliding base 2 at intervals, and one end of the toggle block 14 is sleeved on the first screw rod 13 through an internal thread In addition, the other end is located between the two stoppers 15 . The sliding base 2 is provided with a sliding rod 18 , and the sliding rod 18 is disposed through the motor bracket 16 and the screw bracket 17 , and the sliding rod 18 improves the stability and reliability of the sliding base 2 when sliding as a whole.

One end of the sliding base 2 is provided with a fixed seat 19, and the medicine storage bin 20 is assembled on the fixed seat 19 with a side flip structure. The medicine injection drive device includes a second drive motor 21, a second reduction gear set 22, a second screw rod 23 and a drive rod 24. The output shaft of the second drive motor 21 is connected to the input end of the second reduction gear set 22, and the second reduction gear The output end of the gear set 22 is connected with the second screw rod 23 , and the driving rod 24 is rotatably sleeved outside the second screw rod 23 .

One end of the medicine storage bin 20 is rotatably assembled on the fixed seat 19 through the first rotating shaft 25. The first rotating shaft 25 is equipped with a torsion spring 26a for the medicine storage bin 20 to automatically open and provide elastic force, and the medicine bottle 27 is placed in the medicine storage. In the bin 20, the driving rod 24 is movably assembled in the driving sleeve 28 and is located at the opening and closing end of the medicine storage bin 20. The end of the driving sleeve 28 can be telescopically assembled with a limit ring 29. A coil spring 30 is arranged between the sleeves 28 for pushing the limit ring 29 to move toward the medicine storage bin 20. The drive rod 24 is arranged through the limit ring 29 and has a head radius larger than the inner hole of the limit ring 29. A driving rocker arm 32 is rotatably provided on the fixing seat 19 through the second rotating shaft 31, and a torsion spring 26b for restoring the driving rocker arm 32 is installed on the second rotating shaft 31. The fixing base 19 is provided with a medicine storage bin for opening and closing. The toggle switch 33 of 20, the bottom of the toggle switch 33 is provided with a limit block 34, the limit block 34 is provided with a limit slot 35, one end of the driving rocker arm 32 is located on one side of the limit ring 29, and the other end is clamped on the limit ring 29. The position is limited in the position slot 35, and the fixed seat 19 is provided with a sliding plate 36 below the driving rocker arm 32. The sliding plate 36 is provided with a clamping hole 37, and the clamping hole 37 is provided with a clamping hole 37 at the bottom of one end of the medicine storage bin 20. The hook 38, the sliding plate 36 is provided with a torsion spring 26c for restoring the sliding plate 36, the fixed seat 19 is rotatably assembled with a transmission lever 40 between the sliding plate 36 and the limit block 34 through the third rotating shaft 39, and the transmission The two ends of the lever 40 are respectively provided with the limit block 34 and the sliding plate 36 , and the medicine storage bin 20 is provided with a chuck 41 which is matched with the toggle switch 33 .

The medicine storage bin 20 includes a cylindrical bin body, the end of the bin body is provided with an external thread segment 42 with a radius smaller than the radius of the cartridge body, and the injection needle 43 is detachably assembled on the external thread segment 42 through the internal thread. The bottom of one end of the cartridge body assembling the injection needle 43 is equipped with a pressing block 44 that can slide back and forth along the horizontal direction. An extension block 47 is extended, a long hole 48 is opened on the horizontal edge 45, a gap 49 for accommodating the vertical edge 46 is provided at the end of the bin body, and the bottom of the gap 49 extends downward with a hinge seat 50, a guide pin 51 The two ends of the yoke 44 are assembled on the hinge seat 50 and arranged through the elongated hole 48 to assemble the pressing block 44 on the hinge seat 50 .

During use, when injecting, the user aligns the injection needle 43 with the injection site, the first drive motor 11 rotates through the first reduction gear set 12 to drive the first screw rod 13 to rotate, thereby driving the sliding base through the toggle block 14 2. The whole moves to the direction close to the injection site of the human body, and finally the injection needle 43 is automatically implanted into the human body. After implanting in the human body, the second driving motor 21 rotates through the second reduction gear set 22 to drive the second screw 23 to rotate, and the second The screw rod 23 then drives the driving rod 24 to move forward for a certain distance, and finally the driving rod 24 precisely injects the medicine in the medicine storage bin 20 into the human body through the piston at the end.

When the medicine storage bin 20 is closed, the coil spring 30 pushes out the limit ring 29 and abuts against the medicine storage bin 20. At the same time, the hook 38 at the bottom of the medicine storage bin 20 hooks the hook hole 37 to limit the medicine storage bin 20. The top clamp 41 is inserted into the toggle switch 33 to limit the position. When the medicine storage bin 20 needs to be opened for changing medicines, it is first necessary to ensure that the injection needle 43 has been completely removed. The vertical side 46 of the pressing block 44 is limited to the notch 49 , and the end of the horizontal side 45 abuts against the end of the fixing seat 19 to limit the position. At this time, the medicine storage bin 20 cannot be opened outward. Only when the injection needle 43 is completely removed and there is no limit for the injection needle 43 on the outer side of the vertical edge 46, the medicine storage bin 20 can be opened outwards. Move to avoid interference. In addition, it is necessary to ensure that the driving rod 24 is retracted in place. If it is not retracted in place, the toggle switch 33 cannot be toggled under the limit of the driving rocker arm 32. During the returning process of the driving rod 24, the limit ring 29 will be driven to overcome the screw. The elastic force of the spring 30 moves toward the direction close to the end of the driving rocker arm 32. When the retraction is completely in place, the limit ring 29 abuts one end of the driving rocker arm 32, driving the driving rocker arm 32 to rotate, thereby driving the other end to rotate and disengage The limit slot 35, the toggle switch 33 loses its limit, and then the toggle switch 33 is operated to push one end of the transmission lever 40 to rotate, and then the other end of the transmission lever 40 pushes the sliding plate 36 to slide in the direction close to the injection needle 43, finally making the When the hook 38 is separated from the hole 37, the medicine storage bin 20 completely loses its position, and automatically pops out to the outside under the action of the torsion spring 26a.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention. The scope is determined by the scope of the appended claims.

Claims (9)

1. A full-automatic electronic insulin injection pen comprises an outer shell and a sliding base which can be arranged in the outer shell in a reciprocating sliding way, it is characterized in that one side of the sliding base is provided with a medicine storage bin with a side surface turnover cover, a medicine bottle is arranged in the medicine storage bin, a medicine feeding injection driving device is arranged on the sliding base in a matching way with the medicine bottle, the medicine feeding injection driving device comprises a driving rod, and the sliding base is provided with an injection needle implantation driving device for driving the whole sliding base to slide in a reciprocating way, a medicine storage bin safety device which is configured to open the medicine storage bin only after the driving rod retracts to the right position is arranged between the outer shell and the medicine storage bin, the front end of the medicine storage bin is detachably provided with an injection needle, and the front end of the medicine storage bin is provided with an injection needle safety device which is configured to ensure that the medicine storage bin can be opened only after the injection needle is completely detached.

2. The full automatic electronic insulin injection pen according to claim 1, wherein the injection needle implanting driving device comprises a first driving motor, a first speed reducing gear set, a first lead screw, a dial block and two stop blocks, wherein an output shaft of the first driving motor is connected with an input end of the first speed reducing gear set, an output end of the first speed reducing gear set is connected with the first lead screw, the two stop blocks are fixed on the sliding base at intervals, one end of the dial block is sleeved outside the first lead screw through an internal thread, the other end of the dial block is positioned between the two stop blocks, the drug administration injecting driving device comprises a second driving motor, a second speed reducing gear set, a second lead screw and a driving rod, an output shaft of the second driving motor is connected with an input end of the second speed reducing gear set, an output end of the second speed reducing gear set is connected with the second lead screw, the driving rod can be rotatably sleeved outside the second screw rod.

3. The full automatic electronic insulin injection pen according to claim 2, wherein a motor bracket and a lead screw bracket are provided at one side of the slide base at intervals, the first driving motor is mounted to the motor bracket, the first lead screw is rotatably mounted to the lead screw bracket, the first reduction gear set is assembled between the motor bracket and the lead screw bracket, and a slide bar is provided on the slide base, the slide bar being disposed through the motor bracket and the lead screw bracket.

4. The full-automatic electronic insulin injection pen according to claim 1, wherein the safety device of the drug storage bin comprises a fixed seat, a drug storage bin and a driving rod, a toggle switch is arranged on the fixed seat, one end of the drug storage bin is rotatably assembled on the fixed seat through a first rotating shaft, a buckle is arranged at the bottom of the other end of the drug storage bin, the driving rod is movably assembled in a driving sleeve, wherein a limit ring is telescopically assembled at the end of the driving sleeve, a first elastic member for pushing the limit ring to move towards the direction close to the drug storage bin is arranged between the limit ring and the driving sleeve, the driving rod penetrates through the limit ring, the radius of the head of the driving rod is larger than the inner hole of the limit ring, a driving rocker arm is rotatably arranged on the fixed seat through a second rotating shaft, and a second elastic member for resetting the driving rocker arm is arranged on the second rotating shaft, the bottom of toggle switch is provided with the stopper, the stopper has seted up the spacing groove, the one end of drive rocking arm is located one side of spacing collar, and the other end card in the spacing inslot is spacing, be provided with the sliding plate on the fixing base in the below of drive rocking arm, the cooperation buckle has seted up the card hole on the sliding plate, just be provided with the third elastic component that is used for making the sliding plate reset on the sliding plate, on the fixing base in can be equipped with the transmission lever with rotating through the third pivot between sliding plate and the stopper, the both ends of transmission lever correspond stopper and sliding plate setting respectively.

5. The full automatic electronic insulin injection pen according to claim 4, wherein the first rotary shaft is provided with a fourth resilient member for automatically springing open the medicine cartridge.

6. The fully automatic electronic insulin injection pen according to claim 4, wherein the cartridge is provided with a chuck adapted to a toggle switch.

7. The fully automatic electronic insulin injection pen according to claim 4, wherein the safety device of the injection needle comprises a pressing block which is assembled at the bottom of the front end of the medicine storage bin and can slide back and forth along the horizontal direction, the pressing block is provided with a strip hole, a guide pin is arranged in the strip hole, when the injection needle is assembled on the medicine storage bin, one end of the pressing block is pressed and limited by the injection needle, and the other end of the pressing block abuts against the end part of the fixing seat for limiting.

8. The fully automatic electronic insulin injection pen according to claim 7, wherein the pressing block is integrally of an L-shaped structure and comprises a horizontal side and a vertical side, the end of the medicine storage bin is provided with a notch for assembling the pressing block, the bottom of the notch extends downwards to form a hinge seat, and the guide pin is arranged on the hinge seat.

9. The fully automatic electronic insulin injection pen according to claim 8, wherein the elongated hole is opened on the horizontal edge, the vertical edge is located in the notch, and when the injection needle is assembled on the drug storage bin, the outer side of the vertical edge is flush with the end surface of the bin body.

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