CN211188582U

CN211188582U - Safety device for medicine storage bin of full-automatic insulin injection pen

Info

Publication number: CN211188582U
Application number: CN201921653183.1U
Authority: CN
Inventors: 陈松; 陆慧云
Original assignee: Wuxi Hongyu Medical Technology Co ltd
Current assignee: Wuxi Hongyu Medical Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-08-07
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a full-automatic insulin injection pen's medicine storage storehouse safety device, it includes the fixing base, medicine storage storehouse and actuating lever, be provided with toggle switch on the fixing base, the one end in medicine storage storehouse can be assembled on the fixing base through first pivot with rotating, the bottom of the other end is provided with the buckle, the actuating lever can be assembled in the drive sleeve with removing, the tip of drive sleeve can be assembled with the spacing collar telescopically, be provided with first elastic component between spacing collar and the drive sleeve, the actuating lever passes the hole that spacing collar setting and its head radius are greater than the spacing collar, be provided with the sliding plate on the fixing base, the card hole has been seted up to cooperation buckle on the sliding plate, be provided with between spacing collar and the sliding plate and be used for making the buckle throw off the drive assembly in card hole. The safety device for the medicine storage bin has the advantages of simple structure and convenience and quickness in changing medicine; and the medicine storage bin can be opened only after the injection needle is taken down and the driving rod is completely retracted to the proper position, so that the safety and reliability of the full-automatic injector are improved.

Description

Safety device for medicine storage bin of full-automatic insulin injection pen

Technical Field

The utility model relates to a full-automatic insulin injection pen especially relates to a medicine storage bin safety device of full-automatic insulin injection pen.

Background

Most of the existing full-automatic electronic insulin injection pens realize full automatic injection. In recent years, people have designed and developed a side flip-top medicine-filled injector, and the full-automatic electronic insulin injection pen avoids repeated disassembly of the shell, is convenient for changing medicine and prolongs the service life of the electronic pen type injection pen. But the side flip powder charge formula injection pen on the market all does not design the safety device that the storage medicine storehouse opened and shut, can appear some maloperations often in specific use, for example the user appears the maloperation easily when changing dressings, when the syringe needle was not taken off, then changed the operation of medicine bottle, caused the secondary injury easily. The user opens the medicine storage bin after the driving rod is not retracted to the right position, and the driving rod is easy to damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medicine storage bin safety device of full-automatic insulin injection pen to there is the easy problem that the maloperation appears when medicine storage bin is opened in the full-automatic syringe of side flip powder charge formula among the solution prior art.

To achieve the purpose, the utility model adopts the following technical proposal:

a safety device for a drug storage bin of a full-automatic insulin injection pen comprises a fixing seat, the drug storage bin and a driving rod, wherein a toggle switch is arranged on the fixing seat, one end of the drug storage bin can be rotatably assembled on the fixing 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 can be movably assembled in a driving sleeve, a limiting ring can be telescopically assembled at the end part of the driving sleeve, a first elastic piece used for pushing the limiting ring to move towards the direction close to the drug storage bin is arranged between the limiting ring and the driving sleeve, the driving rod penetrates through the limiting ring, the head radius of the driving rod is larger than that of an inner hole of the limiting ring, a driving rocker arm can be rotatably arranged on the fixing seat through a second rotating shaft, a second elastic piece used for enabling the driving rocker arm to reset is arranged on the second rotating shaft, and a limiting block is arranged at the, the limiting device comprises a limiting block, a fixed seat and a driving rocker arm, wherein the limiting block is provided with a limiting groove, one end of the driving rocker arm is positioned on one side of the limiting ring, the other end of the driving rocker arm 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 formed in the sliding plate in a matched mode, a third elastic piece used for enabling the sliding plate to reset is arranged on the sliding plate, a transmission lever is rotatably assembled between the sliding plate and the limiting block through a third rotating shaft on the fixed seat, and two ends of the transmission lever respectively correspond to the limiting block and the.

In particular, the first rotating shaft is provided with a fourth elastic piece for automatically ejecting the medicine storage bin.

In particular, a chuck matched with the toggle switch is arranged on the medicine storage bin.

Particularly, the front end of the medicine storage bin can be detachably provided with a syringe needle, the bottom of one end of the medicine storage bin, which is provided with the syringe needle, can be assembled with a pressing block in a front-back sliding mode along the horizontal direction, a strip hole is formed in the pressing block, a guide pin is arranged in the strip hole, when the syringe needle is assembled on the medicine storage bin, one end of the pressing block is pressed and limited through the syringe needle, and the other end of the pressing block is abutted against the end part of the fixing seat to be limited.

Particularly, the briquetting is whole to be "L" type structure, including horizontal limit and vertical limit, the tip in storage medicine storehouse is provided with the breach that is used for assembling the briquetting, the bottom downwardly extending of breach has articulated seat, the uide pin is provided with on the articulated seat.

Particularly, the strip hole is arranged on the horizontal edge, the vertical edge is positioned 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 face of the bin body.

The utility model has the advantages that compared with the prior art, the safety device of the medicine storage bin of the full-automatic insulin injection pen has simple structure and convenient and quick medicine change; and the medicine storage bin can be opened only after the injection needle is taken down and the driving rod is completely retracted to the right position, so that misoperation of a user is avoided, and the safety and reliability of the full-automatic injector are improved.

Drawings

FIG. 1 is an exploded view of a safety device of a drug storage compartment of a fully automatic insulin injection pen according to an embodiment of the present invention;

FIG. 2 is an assembly view of the safety device of the drug storage chamber of the fully automatic insulin injection pen according to the embodiment of the present invention;

fig. 3 is a schematic view of a three-dimensional structure of a pressing block of the safety device of the drug storage bin of the full-automatic insulin injection pen according to the embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. Unless defined otherwise, 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 terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, in this embodiment, a safety device for a drug storage bin of a full-automatic insulin injection pen is disclosed, the drug storage bin is designed in a side-flip drug-charging type structure, and includes a fixing base 1, a drug storage bin 2, a driving rod 3 and an injection needle 4, one end of the drug storage bin 2 is rotatably assembled on the fixing base 1 through a first rotating shaft 5, a torsion spring 6a for automatically springing open the drug storage bin 2 to provide elasticity is assembled on the first rotating shaft 5, a drug bottle 7 is placed in the drug storage bin 2, the driving rod 3 is movably assembled in a driving sleeve 8 and located at an opening and closing end of the drug storage bin 2, a limiting ring 9 is telescopically assembled at an end of the driving sleeve 8, a spiral spring 10 for pushing the limiting ring 9 to move towards a direction close to the drug storage bin 2 is arranged between the limiting ring 9 and the driving sleeve 8, the driving rod 3 passes through the limiting ring 9 and has a head radius larger than an inner hole of the limiting ring 9, a driving rocker 12 is rotatably arranged on the fixed seat 1 through a second rotating shaft 11, a torsional spring 6b for resetting the driving rocker 12 is arranged on the second rotating shaft 11, a toggle switch 13 for opening and closing the medicine storage bin 2 is arranged on the fixed seat 1, a limit block 14 is arranged at the bottom of the toggle switch 13, a limit groove 15 is arranged on the limit block 14, one end of the driving rocker 12 is positioned at one side of the limit ring 9, the other end is clamped in the limit groove 15 for limiting, a sliding plate 16 is arranged on the fixed seat 1 below the driving rocker 12, a clamping hole 17 is arranged on the sliding plate 16 in a matching way, a clamping hook 18 is arranged at the bottom of one end of the medicine storage bin 2 in the matching way 17, a torsional spring 6c for resetting the sliding plate 16 is arranged on the sliding plate 16, a transmission lever 20 is rotatably assembled between the sliding plate 16 and the limit block 14 through a third rotating shaft 19 on the fixed seat 1, and two ends of the, the medicine storage bin 2 is provided with a clamping head 21 matched with the toggle switch 13.

Medicine storage bin 2 includes the storehouse body of cylinder, the tip of the storehouse body is provided with the external screw thread section that the radius is less than the radius of the storehouse body, syringe needle 4 can assemble on the external screw thread section through the internal thread dismouting the bottom of the one end of storehouse body assembly syringe needle 4 can be followed the horizontal direction and assembled briquetting 22 with sliding forward and backward, briquetting 22 wholly is "L" type structure, including horizontal limit 23 and vertical limit 24, horizontal limit 23 has extension piece 25 to both sides extension, rectangular hole 26 has been seted up on horizontal limit 23, the tip of the storehouse body is provided with the breach that is used for the vertical limit 24 of holding, the bottom downwardly extending of breach has articulated seat 27, the both ends of uide pin 28 assemble on articulated seat 27 and pass rectangular hole 26 setting, in order to assemble briquetting 22 on articulated seat 27.

When the medicine storage bin 2 of the full-automatic injector is closed, the spiral spring 10 pushes out the limiting ring 9 to abut against the medicine storage bin 2, meanwhile, the clamping hook 18 at the bottom of the medicine storage bin 2 hooks the clamping hole 17 to limit the medicine storage bin 2, and the clamping head 21 at the top is inserted into the toggle switch 13 to limit the position. When needing to open storage medicine storehouse 2 and changing dressings, at first will guarantee that syringe needle 3 has detached completely, the mechanism principle is: when the tail end of syringe needle 4 was screwed up and is assembled on the external screw thread section, the tail end through syringe needle 4 was spacing in the breach with the vertical limit 24 of briquetting 22, and the tip of horizontal limit 23 is supported and is leaned on the tip in fixing base 1 and spacing, and storage medicine storehouse 2 can't outwards be turned over and open this moment. Only when the injection needle 4 is completely dismounted, the outer side of the vertical edge 24 is not limited by the injection needle 4, the medicine storage bin 2 can be outwards turned to be opened, and the integral pressing block 22 moves outwards through the strip hole 26 in the opening process, so that interference is avoided. And it is required to guarantee that the driving rod 3 retracts to the right place, if not, the toggle switch 13 cannot be toggled under the limit of the driving rocker arm 12, the driving rod 3 can drive the limit ring 9 to overcome the elasticity of the spiral spring 10 to move towards the direction close to the end part of the driving rocker arm 12 in the process of returning, after retracting to the right place completely, the limit ring 9 abuts against one end of the driving rocker arm 12 to drive the driving rocker arm 12 to rotate, so as to drive the other end to rotate and separate from the limit groove 15, the toggle switch 13 loses the limit, the toggle switch 13 is operated to push one end of the transmission lever 20 to rotate, and then the sliding plate 16 is pushed to slide towards the direction close to the injection needle 4 through the other end of the transmission lever 20, finally the hook 18 is separated from the clamp hole 17, at this moment, the medicine storage bin 2.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A safety device for a drug storage bin of a full-automatic insulin injection pen comprises a fixing seat, the drug storage bin and a driving rod, wherein a toggle switch is arranged on the fixing seat, one end of the drug storage bin can be rotatably assembled on the fixing 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 can be movably assembled in a driving sleeve, the safety device is characterized in that the end part of the driving sleeve can be telescopically assembled with a limiting ring, a first elastic piece used for pushing the limiting ring to move towards the direction close to the drug storage bin is arranged between the limiting ring and the driving sleeve, the driving rod penetrates through the limiting ring, the radius of the head of the driving rod is larger than that of an inner hole of the limiting ring, a driving rocker arm can be rotatably arranged on the fixing seat through a second rotating shaft, a second elastic piece used for resetting the driving rocker arm is arranged on the second rotating shaft, and a limiting, the limiting device comprises a limiting block, a fixed seat and a driving rocker arm, wherein the limiting block is provided with a limiting groove, one end of the driving rocker arm is positioned on one side of the limiting ring, the other end of the driving rocker arm 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 formed in the sliding plate in a matched mode, a third elastic piece used for enabling the sliding plate to reset is arranged on the sliding plate, a transmission lever is rotatably assembled between the sliding plate and the limiting block through a third rotating shaft on the fixed seat, and two ends of the transmission lever respectively correspond to the limiting block and the.

2. The safety device for the drug storage container of the full automatic insulin injection pen according to claim 1, wherein the first rotation shaft is provided with a fourth elastic member for automatically ejecting the drug storage container.

3. The safety device of claim 1, wherein the cartridge is provided with a locking head adapted to the toggle switch.

4. A safety device for a drug storage bin of a fully automatic insulin injection pen according to any one of claims 1 to 3, wherein the front end of the drug storage bin is detachably provided with an injection needle, the bottom of one end of the drug storage bin, which is provided with the injection needle, is provided with a pressing block in a manner that the pressing block 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 arranged on the drug storage bin, one end of the pressing block is pressed and limited by the injection needle, and the other end of the pressing block is limited by abutting against the end of the fixed seat.

5. The safety device for the drug storage bin of the full-automatic insulin injection pen according to claim 4, wherein the pressing block is integrally in an L-shaped structure and comprises a horizontal edge and a vertical edge, the end part of the drug storage bin is provided with a notch for assembling the pressing block, the bottom of the notch extends downwards to form a hinged seat, and the guide pin is arranged on the hinged seat.

6. The safety device of claim 5, wherein the elongated hole is formed in the horizontal edge, the vertical edge is located in the notch, and when the injection needle is mounted on the drug storage bin, the outer side of the vertical edge is flush with the end surface of the bin body.