A fully automatic electronic insulin injection pen

Abstract

The present invention discloses a fully automatic electronic insulin injection pen, which comprises an outer housing and a sliding base. A side flip-type medicine storage chamber is arranged on one side of the sliding base. A medicine bottle is installed in the medicine storage chamber. A medicine administration injection driving device is arranged on the sliding base in cooperation with the medicine bottle. The medicine administration injection driving device comprises a driving rod. An injection needle implantation driving device is arranged on the sliding base. A medicine storage chamber safety insurance device configured to open the medicine storage chamber only after the driving rod retracts in place is arranged between the outer housing and the medicine storage chamber. A front end of the medicine storage chamber is provided with an injection needle safety insurance device configured to open the medicine storage chamber only after the injection needle is completely removed. The above-mentioned fully automatic electronic insulin injection pen not only has a simple structure, is convenient and fast for changing medicine, and operates stably and reliably; but also the medicine storage chamber can be opened only after the injection needle is removed and the driving rod retracts completely in place, avoiding misoperation by the user and improving the safety and reliability of the fully automatic syringe.

Description

Technical Field

[0001] The invention relates to an electronic insulin injection pen, in particular to a full-automatic electronic insulin injection pen. Background Art

[0002] Most of the existing fully automatic electronic insulin injection pens have achieved fully automatic injection. In recent years, people have designed and developed injection pens with side flip covers for loading medicines. Such fully automatic electronic insulin injection pens avoid repeated disassembly of the shell, facilitate medicine replacement, and increase the service life of electronic pen injection pens. However, the side flip cover medicine loading syringes on the market generally have the disadvantages of poor operating stability and easy misoperation when changing medicines. Summary of the invention

[0003] The purpose of the present invention is to provide a fully automatic electronic insulin injection pen to solve the problems of poor operating stability and easy misoperation when changing medicines in the prior art fully automatic electronic insulin injection pen.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A fully automatic electronic insulin injection pen, comprising an outer shell and a sliding base reciprocatingly slidably arranged in the outer shell, wherein a side flip-cover medicine storage bin is arranged on one side of the sliding base, a medicine bottle is installed in the medicine storage bin, and a drug administration injection drive device is arranged on the sliding base in conjunction with the medicine bottle, the drug administration injection drive device comprises a driving rod, and the sliding base is provided with an injection needle implantation drive device for driving the entire sliding base to reciprocate, a medicine storage bin safety device is arranged between the outer shell and the medicine storage bin and is configured to open the medicine storage bin only when the driving rod is retracted into place, an injection needle is detachably installed at the front end of the medicine storage bin, and an injection needle safety device is arranged at the front end of the medicine storage bin and is configured to open the medicine storage bin only when the injection needle is completely removed.

[0006] In particular, the injection needle implantation drive device includes a first drive motor, a first reduction gear group, a first screw rod, a toggle block and two blocks, the output shaft of the first drive motor is connected to the input end of the first reduction gear group, the output end of the first reduction gear group is connected to the first screw rod, the two blocks are fixed on the sliding base at intervals, one end of the toggle block is sleeved on the outside of the first screw rod through an internal thread, and the other end is located between the two blocks, the drug administration injection drive device includes a second drive motor, a second reduction gear group, a second screw rod and a drive rod, the output shaft of the second drive motor is connected to the input end of the second reduction gear group, the output end of the second reduction gear group is connected to the second screw rod, and the drive rod can be rotatably sleeved outside the second screw rod.

[0007] Specifically, a motor bracket and a lead screw bracket are spaced apart on one side of the sliding base. The first driving motor is installed on the motor bracket, the first lead screw is rotatably installed on the lead screw bracket, the first reduction gear set is assembled between the motor bracket and the lead screw bracket, and a sliding rod is arranged on the sliding base. The sliding rod passes through the motor bracket and the lead screw bracket.

[0008] Specifically, the medicine storage bin safety insurance device includes a fixed seat, a medicine storage bin, and a driving rod. A toggle switch is arranged on the fixed seat. One end of the medicine storage bin is rotatably assembled on the fixed seat through a first rotating shaft, and a buckle is arranged at the bottom of the other end. The driving rod is movably assembled in a driving sleeve. Wherein, a limiting ring is telescopically assembled at the end of the driving sleeve, and a first elastic member for pushing the limiting ring to move towards the medicine storage bin is arranged between the limiting ring and the driving sleeve. The driving rod passes through the limiting ring and the radius of its head is greater than the inner hole of the limiting 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 installed on the second rotating shaft. A limiting block is arranged at the bottom of the toggle switch, and a limiting groove is formed on the limiting block. One end of the driving rocker arm is located on one side of the limiting ring, and the other end is clamped in the limiting groove for limiting. A sliding plate is arranged below the driving rocker arm on the fixed seat. A clamping hole is formed on the sliding plate in cooperation 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 on the fixed seat between the sliding plate and the limiting block through a third rotating shaft, and the two ends of the transmission lever are respectively arranged corresponding to the limiting block and the sliding plate.

[0009] Specifically, a fourth elastic member for automatically popping open the medicine storage bin is assembled on the first rotating shaft.

[0010] Specifically, a chuck adapted to the toggle switch is arranged on the medicine storage bin.

[0011] Specifically, the injection needle safety insurance device includes a pressing block assembled at the front bottom of the medicine storage bin and capable of sliding back and forth in the horizontal direction. A long strip hole is arranged on the pressing block, and a guiding pin is arranged in the long strip hole. When the injection needle is assembled on the medicine storage bin, one end of the pressing block is tightly limited by the injection needle, and the other end abuts against the end of the fixed seat for limiting.

[0012] Specifically, the pressing block is integrally in an "L" - shaped structure, including a horizontal side and a vertical side. A notch for assembling the pressing block is arranged at the end of the medicine storage bin, and a hinge seat extends downward from the bottom of the notch. The guiding pin is arranged on the hinge seat.

[0013] Specifically, the long strip hole is opened on the horizontal side, the vertical side is located within the notch, and when the injection needle is assembled on the medicine storage chamber, the outer side of the vertical side is flush with the end face of the chamber body.

[0014] The beneficial effects of the present invention are that, compared with the prior art, the fully automatic electronic insulin injection pen not only has a simple structure, is convenient and fast for changing medicine, and operates stably and reliably; but also the medicine storage chamber can only be opened after removing the injection needle and the driving rod is fully retracted in place, avoiding misoperation by the user and improving the safety and reliability of the fully automatic syringe. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of the fully automatic electronic insulin injection pen provided by the specific embodiment of the present invention;

[0016] Figure 2 is an internal structural schematic diagram of the fully automatic electronic insulin injection pen provided by the specific embodiment of the present invention;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the driving device of the fully automatic electronic insulin injection pen provided by the specific embodiment of the present invention;

[0018] Figure 4 is a three-dimensional structural schematic diagram of the injection needle implantation driving device of the fully automatic electronic insulin injection pen provided by the specific embodiment of the present invention;

[0019] Figure 5 is a three-dimensional structural schematic diagram of the drug administration injection driving device of the fully automatic electronic insulin injection pen provided by the specific embodiment of the present invention;

[0020] Figure 6 is an exploded view of the medicine storage chamber safety insurance device of the fully automatic electronic insulin injection pen provided by the specific embodiment of the present invention;

[0021] Figure 7 is an assembly diagram of the medicine storage chamber safety insurance device of the fully automatic electronic insulin injection pen provided by the specific embodiment of the present invention;

[0022] Figure 8 is a three-dimensional structural schematic diagram of the injection needle safety insurance device of the fully automatic electronic insulin injection pen provided by the specific embodiment of the present invention;

[0023] Figure 9 is a three-dimensional structural schematic diagram of the pressing block of the injection needle safety insurance device of the fully automatic electronic insulin injection pen provided by the specific embodiment of the present invention. Specific Embodiment

[0024] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0025] For ease of understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present invention can be understood more thoroughly and comprehensively. 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 there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] Please refer to Figures 1 to 9As shown, in this embodiment, a fully automatic electronic insulin injection pen includes an outer shell 1 and a sliding base 2 which can be reciprocatingly slidably arranged in the outer shell 1, 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 are arranged outside the outer shell 1, a mounting plate 8 is arranged at the bottom of the sliding base 2, the mounting plate 8 is fixed in the outer shell 1, and slide grooves 9 are arranged on both sides thereof, and slide rails 10 are arranged on both sides of the bottom of the sliding base 2, and the slide rails 10 are arranged in the slide grooves 9. A needle implantation drive device for driving the sliding base 2 to reciprocate is provided on one side of the sliding base 2. The needle implantation drive device includes a first driving motor 11, a first reduction gear set 12, a first screw rod 13, a toggle block 14 and two blocks 15. A motor bracket 16 and a screw rod bracket 17 are arranged at intervals along the length direction of the sliding base 2. The first driving motor 11 is installed on the motor bracket 16, and the first screw rod 13 can be rotatably installed on the screw rod bracket 17. The first reduction gear set 12 is assembled between the motor bracket 16 and the screw rod bracket 17. The output shaft of the first driving motor 11 is connected to the input end of the first reduction gear set 12, and the output end of the first reduction gear set 12 is connected to the first screw rod 13. The two blocks 15 are fixed on the sliding base 2 at intervals. One end of the toggle block 14 is sleeved on the outside of the first screw rod 13 through an internal thread, and the other end is located between the two blocks 15. A sliding rod 18 is provided on the sliding base 2 , and the sliding rod 18 passes through the motor bracket 16 and the screw bracket 17 . The sliding rod 18 improves the stability and reliability of the sliding base 2 when it slides as a whole.

[0027] A fixed seat 19 is provided at one end of the sliding base 2, and the medicine storage bin 20 is assembled on the fixed seat 19 with a side flip-up structure. A drug administration injection drive device is provided at the other end of the sliding base 2 to cooperate with the medicine storage bin 20. The drug administration 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 output end of the second reduction gear set 22 is connected to the second screw rod 23. The drive rod 24 can be rotatably sleeved outside the second screw rod 23.

[0028] One end of the medicine storage bin 20 is rotatably assembled on the fixed seat 19 through the first rotating shaft 25. A torsion spring 26a for providing elastic force for the automatic springing open of the medicine storage bin 20 is assembled on the first rotating shaft 25. The medicine bottle 27 is placed in the medicine storage 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 is telescopically assembled with a limiting ring 29. A helical spring 30 for pushing the limiting ring 29 to move towards the medicine storage bin 20 is arranged between the limiting ring 29 and the driving sleeve 28. The driving rod 24 passes through the limiting ring 29 and the radius of its head is greater than the inner hole of the limiting ring 29. A driving rocker arm 32 is rotatably arranged on the fixed seat 19 through the second rotating shaft 31. A torsion spring 26b for resetting the driving rocker arm 32 is installed on the second rotating shaft 31. A toggle switch 33 for opening and closing the medicine storage bin 20 is arranged on the fixed seat 19. A limiting block 34 is arranged at the bottom of the toggle switch 33. A limiting groove 35 is opened on the limiting block 34. One end of the driving rocker arm 32 is located on one side of the limiting ring 29, and the other end is clamped in the limiting groove 35 for limiting. A sliding plate 36 is arranged below the driving rocker arm 32 on the fixed seat 19. A clamping hole 37 is opened on the sliding plate 36. A hook 38 is arranged at the bottom of one end of the medicine storage bin 20 in cooperation with the clamping hole 37. A torsion spring 26c for resetting the sliding plate 36 is arranged on the sliding plate 36. A transmission lever 40 is rotatably assembled on the fixed seat 19 between the sliding plate 36 and the limiting block 34 through the third rotating shaft 39. The two ends of the transmission lever 40 are respectively arranged corresponding to the limiting block 34 and the sliding plate 36. A clamping head 41 adapted to the toggle switch 33 is arranged on the medicine storage bin 20.

[0029] The medicine storage bin 20 includes a cylindrical bin body. An external thread section 42 with a radius smaller than that of the bin body is arranged at the end of the bin body. The injection needle 43 is detachably assembled on the external thread section 42 through internal threads. A pressing block 44 is slidably assembled back and forth in the horizontal direction at the bottom of the end of the bin body where the injection needle 43 is assembled. The pressing block 44 is integrally in an "L" shape structure and includes a horizontal side 45 and a vertical side 46. Extension blocks 47 extend from both sides of the horizontal side 45. A long strip hole 48 is opened on the horizontal side 45. A notch 49 for accommodating the vertical side 46 is arranged at the end of the bin body. A hinge seat 50 extends downward from the bottom of the notch 49. Both ends of the guide pin 51 are assembled on the hinge seat 50 and pass through the long strip hole 48 to assemble the pressing block 44 on the hinge seat 50.

[0030] During use, when performing an injection, the user aims the injection needle 43 at 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 2 as a whole to move in the direction close to the injection site of the human body through the toggle block 14, and finally the injection needle 43 is automatically implanted into the human body. After implantation into the human body, the second drive motor 21 rotates through the second reduction gear set 22 to drive the second screw rod 23 to rotate, and the second screw rod 23 drives the drive rod 24 to move forward a certain distance, and finally the drive rod 24 accurately injects the medicine in the medicine storage bin 20 into the human body through the piston at the end.

[0031] When the medicine storage bin 20 is closed, the coil spring 30 pushes the limiting ring 29 out 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 clamp hole 37 to limit the medicine storage bin 20, and the clamp head 41 at the top is inserted into the toggle switch 33 for limiting. When it is necessary to open the medicine storage bin 20 for changing medicine, it is necessary to first ensure that the injection needle 43 has been completely removed. The mechanism principle is: when the tail end of the injection needle 43 is tightened and assembled on the external thread section 42, the vertical edge 46 of the pressing block 44 is limited in the notch 49 by the tail end of the injection needle 43, and the end of the horizontal edge 45 abuts against the end of the fixing seat 19 for limiting. At this time, the medicine storage bin 20 cannot be opened outward. Only when the injection needle 43 is completely removed, there is no limit of the injection needle 43 on the outside of the vertical edge 46, and the medicine storage bin 20 can be opened outward. During the opening process, the whole pressing block 44 moves outward through the long hole 48 to avoid interference. The toggle switch 33 loses its limit, and the toggle switch 33 is then operated to push one end of the transmission lever 40 to rotate, thereby pushing the sliding plate 36 to slide in the direction close to the injection needle 43 through the other end of the transmission lever 40, and finally causing the hook 38 to disengage from the latch hole 37. At this time, the medicine storage bin 20 completely loses its limit and automatically pops out to the outside under the action of the torsion spring 26a.

[0032] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A fully automatic electronic insulin injection pen, which comprises an outer housing and a sliding base that is reciprocally slidably arranged within the outer housing. Characterized in that, a side flip-type medicine storage chamber is arranged on one side of the sliding base, a medicine bottle is installed in the medicine storage chamber, a medicine administration injection driving device is arranged on the sliding base in cooperation with the medicine bottle, the medicine administration injection driving device includes a driving rod, and an injection needle implantation driving device for driving the entire sliding base to reciprocally slide is arranged on the sliding base. A medicine storage chamber safety insurance device configured to open the medicine storage chamber only after the driving rod retracts in place is arranged between the outer housing and the medicine storage chamber. The front end of the medicine storage chamber is detachably installed with an injection needle, and an injection needle safety insurance device configured to open the medicine storage chamber only after the injection needle is completely removed is arranged at the front end of the medicine storage chamber; The medicine storage chamber safety insurance device includes a fixed seat, a medicine storage chamber and a driving rod. A toggle switch is arranged on the fixed seat. One end of the medicine storage chamber is rotatably assembled on the fixed seat through a first rotating shaft, and a buckle is arranged at the bottom of the other end. The driving rod is movably assembled within a driving sleeve. Among them, the end of the driving sleeve is telescopically assembled with a limiting ring. A first elastic member for pushing the limiting ring to move towards the direction close to the medicine storage chamber is arranged between the limiting ring and the driving sleeve. The driving rod passes through the limiting ring and the radius of its head is greater than the inner hole of the limiting ring. A driving rocker arm is rotatably arranged on the fixed seat through a second rotating shaft. A second elastic member for resetting the driving rocker arm is installed on the second rotating shaft. A limiting block is arranged at the bottom of the toggle switch, and a limiting groove is opened on the limiting block. One end of the driving rocker arm is located on one side of the limiting ring, and the other end is clamped in the limiting groove for limiting. A sliding plate is arranged on the fixed seat below the driving rocker arm. A clamping hole is opened on the sliding plate in cooperation 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 on the fixed seat between the sliding plate and the limiting block through a third rotating shaft, and the two ends of the transmission lever are respectively arranged corresponding to the limiting block and the sliding plate; The first elastic member is a helical spring. During the return process of the driving rod, the limiting ring is driven to move towards the direction close to the end of the driving rocker arm against the elastic force of the helical spring. After retracting completely in place, the limiting ring abuts against one end of the driving rocker arm, driving the driving rocker arm to rotate, thereby driving the other end to rotate out of the limiting groove, so that the toggle switch loses its limit.

2. The fully automatic electronic insulin injection pen according to claim 1, Characterized in that, The injection needle implantation drive device includes a first drive motor, a first reduction gear group, a first screw rod, a toggle block and two blocks, the output shaft of the first drive motor is connected to the input end of the first reduction gear group, the output end of the first reduction gear group is connected to the first screw rod, the two blocks are fixed on the sliding base at intervals, one end of the toggle block is sleeved on the outside of the first screw rod through an internal thread, and the other end is located between the two blocks, the drug administration injection drive device includes a second drive motor, a second reduction gear group, a second screw rod and a drive rod, the output shaft of the second drive motor is connected to the input end of the second reduction gear group, the output end of the second reduction gear group is connected to the second screw rod, and the drive rod can be rotatably sleeved outside the second screw rod.

3. The fully automatic electronic insulin injection pen according to claim 2, It is characterized in that A motor bracket and a screw bracket are arranged at intervals on one side of the sliding base, the first driving motor is mounted on the motor bracket, the first screw is rotatably mounted on the screw bracket, the first reduction gear set is assembled between the motor bracket and the screw bracket, and a sliding rod is arranged on the sliding base, and the sliding rod passes through the motor bracket and the screw bracket.

4. The fully automatic electronic insulin injection pen according to claim 1, It is characterized in that The first rotating shaft is equipped with a fourth elastic member for automatically opening the medicine storage bin.

5. The fully automatic electronic insulin injection pen according to claim 1, It is characterized in that The medicine storage bin is provided with a clamping head adapted to the toggle switch.

6. The fully automatic electronic insulin injection pen according to claim 1, It is characterized in that The injection needle safety device includes a pressure block which is mounted on the front bottom of the medicine storage bin and can slide back and forth in the horizontal direction. The pressure block is provided with a long hole, and a guide pin is provided in the long hole. When the injection needle is mounted on the medicine storage bin, one end of the pressure block is pressed and limited by the injection needle, and the other end is pressed against the end of the fixing seat for limiting.

7. The fully automatic electronic insulin injection pen according to claim 6, It is characterized in that The pressing block is in an "L"-shaped structure as a whole, including a horizontal side and a vertical side. A notch for assembling the pressing block is provided at the end of the medicine storage bin, a hinge seat is extended downward from the bottom of the notch, and the guide pin is provided on the hinge seat.

8. The fully automatic electronic insulin injection pen according to claim 7, It is characterized in that The long strip hole is opened on the horizontal edge, the vertical edge is located in the notch, and when the injection needle is assembled on the medicine storage bin, the outer side of the vertical edge is flush with the end surface of the bin body.

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