Insulin injection pen

Abstract

The utility model provides an insulin injection pen which comprises an injection pen container and a pressing block, the upper end of the injection pen container is fixedly connected with a fixing block, the upper end of the fixing block is connected with a needle sleeve, a disassembly and assembly mechanism is arranged between the fixing block and the needle sleeve, the pressing block is arranged at the lower end of the injection pen container, and an adsorption mechanism is arranged at the lower end of the pressing block. The dismounting and mounting mechanism comprises an inserting groove, an inserting rod, a clamping groove, a clamping pin, a pull rod, a limiting rod, an inner groove and a spring. And two inserting grooves are formed in the surface of the upper end of the fixing block, and inserting rods are inserted and connected into the inserting grooves correspondingly. According to the insulin injection pen, by arranging the adsorption mechanism, when a patient needs to place the injection pen temporarily in the process of using the injection pen, the risk that the injection pen rolls to the ground and is damaged due to the fact that the injection pen is horizontally placed is effectively avoided; by arranging the dismounting mechanism, the requirement for the flexibility of the hand of a patient is lowered, the difficulty and time consumption during needle head replacement are reduced, and the operation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection pens, and more specifically, to an insulin injection pen. Background Art

[0002] The insulin injection pen is a medical device for injecting insulin. It can control the injection dose of insulin more accurately and improve the accuracy of treatment. However, diabetic patients often suffer from hypoglycemia due to failure to eat in time after injecting insulin using the insulin injection pen. It is hoped that a candy containing chamber for placing candies can be provided in the insulin injection pen to replenish sugar through candies. However, in order to facilitate the taking and placing of candies, the candy containing chamber needs to be provided at the upper end of the pen shell. However, when the insulin injection pen is in use, a push rod needs to be pushed and pulled above the pen shell to drive the piston assembly of the push rod to move, and a candy containing chamber cannot be provided at the upper end of the pen shell. Therefore, it is far from meeting people's needs.

[0003] In view of the above problems, regarding the technical problem that the existing insulin injection pen cannot be provided with a candy accommodating chamber at the upper end of the pen shell, after a lot of searches, an insulin injection pen with patent number CN213589388U was found, which includes an injection pen barrel provided with scale lines, a mounting bracket, and a piston assembly; an inner sleeve is provided in the mounting bracket, and a candy accommodating chamber for placing candies is formed in the inner sleeve, and the inner sleeve and the mounting bracket together form a mounting chamber; a through hole is provided on one end of the mounting bracket close to the injection pen barrel; the piston assembly includes a movable part movably installed in the mounting chamber, a piston rod connected to the movable part and passing through the through hole, a piston connected to the end of the piston rod away from the movable part, and a rack connected to the movable part; a hand wheel is rotatably installed on the mounting bracket, and a gear meshing with the rack is provided on the hand wheel; the utility model provides an insulin injection pen, which can be provided with a candy accommodating chamber while meeting the movement requirements of the piston assembly, thereby solving the problem of hypoglycemia caused by diabetes patients not eating in time after injecting insulin; however, the technical solution provided by the patent has the following problems:

[0004] (1) After using the insulin injection pen, patients usually place it flat on the table when they need to temporarily put it down. At this time, if the friction between the injection pen and the table is small, the insulin injection pen is likely to roll off the table and fall to the ground, thus causing damage to the injection pen;

[0005] (2) When replacing the needle, it is generally necessary to first align the needle with the interface and then unscrew or tighten it. Patients with poor hand dexterity will need to spend more time and effort on this step, which also increases the difficulty of the operation.

[0006] The utility model provides an adsorption mechanism, which effectively avoids the risk of the injection pen rolling to the ground and causing damage due to flat placement when the patient needs to temporarily place the injection pen during use, and reduces the requirement for the patient's hand flexibility, reduces the difficulty and time consumption in changing the needle, and reduces the difficulty of operation. Utility Model Content

[0007] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides an insulin injection pen. By setting an adsorption mechanism, when the patient needs to temporarily place the injection pen during use, the risk of the injection pen rolling to the ground and causing damage due to being placed flat can be effectively avoided; the disassembly and assembly mechanism can reduce the requirements for the patient's hand flexibility, reduce the difficulty and time consumption when replacing the needle, and reduce the difficulty of operation.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insulin injection pen, comprising: an injection pen barrel and a pressing block, the upper end of the injection pen barrel is fixedly connected to a fixing block, the upper end of the fixing block is connected to a needle sleeve, a disassembly and assembly mechanism is arranged between the fixing block and the needle sleeve, the pressing block is arranged at the lower end of the injection pen barrel, and the lower end of the pressing block is provided with an adsorption mechanism.

[0009] A further preferred solution: the disassembly and assembly mechanism includes: a slot, an insertion rod, a slot, a pin, a pull rod, a limit rod, an inner slot and a spring; two slots are provided on the upper end surface of the fixed block, and the insertion rods are respectively inserted and connected inside the slots, and slots are provided on the outer surfaces of the insertion rods, and pins are clamped inside the slots, and pull rods are fixedly connected to the outer sides of the pins, inner slots are provided inside both ends of the fixed block, and a spring is arranged inside the inner slot, a limit rod is connected to the inner side of the spring, the limit rod is slidably connected to the inner wall of the inner slot, and the limit rod is fixedly connected to the outer surface of the pin.

[0010] A further preferred solution: the adsorption mechanism comprises: a mounting block, a connecting rod and a suction cup body;

[0011] The lower end of the pressing block is fixedly connected with a mounting block through bolts, the lower end of the mounting block is fixed with a connecting rod, and the lower end of the connecting rod is fixedly installed with a suction cup body.

[0012] A further preferred solution is that the outer surface of the injection pen barrel is provided with scale lines.

[0013] A further preferred solution: a sealing cap is provided at the upper end of the injection pen barrel.

[0014] A further preferred solution: a needle is provided at the upper end of the needle sleeve.

[0015] A further preferred solution is that a piston rod is telescopically connected to the lower end of the injection pen barrel, one end of the piston rod is fixedly connected to a piston, and the piston is slidably connected to the inner wall of the injection pen barrel.

[0016] Beneficial effects:

[0017] 1. By setting up the adsorption mechanism, when the patient needs to temporarily place the injection pen during use, he only needs to turn the injection pen upside down, let the suction cup fit tightly against the desktop, and then use his hand to apply force downward on the connecting rod to make the suction cup firmly adsorbed on the desktop surface. In this way, the injection pen can be fixed vertically on the desktop, effectively avoiding the risk of the injection pen rolling off the ground and causing damage due to flat placement, and can protect the needle position from being damaged by bumps;

[0018] 2. By setting up a disassembly and assembly mechanism, when replacing the needle, pull the pull rod outward to separate the pin from the slot, then pull out the needle to disengage the insertion rod from the slot, and complete the removal of the needle; when installing, just pull the pull rod outward again, at this time the spring is in a compressed state, so that the insertion rod is inserted into the slot, and then release the pull rod, with the help of the spring's rebound force, the pin can be inserted into the slot. When the pin is inserted into the slot, it can provide a stable connection to prevent the insertion rod from moving, ensuring that the needle remains stable during use, reducing the requirements for the patient's hand flexibility, reducing the difficulty and time consumption when replacing the needle, and reducing the difficulty of operation.

[0019] 3. In summary, this type of insulin injection pen, by providing an adsorption mechanism, can effectively avoid the risk of the injection pen rolling to the ground and causing damage when the patient needs to temporarily place the injection pen during use; by providing a disassembly and assembly mechanism, the requirements for the patient's hand flexibility are reduced, the difficulty and time consumption in changing the needle are reduced, and the difficulty of operation is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the structure of the insulin injection pen of the present utility model.

[0022] Figure 3 It is a schematic diagram of the side structure of the injection pen of the present utility model.

[0023] Figure 4 This is a schematic diagram of the plug rod and slot structure of the utility model

[0024] Figure 5 It is a schematic diagram of the disassembly and assembly mechanism structure of the utility model.

[0025] Figure 1-5In: 1. Injection pen barrel; 2. Cover; 3. Press block; 4. Scale line; 5. Piston rod; 6. Connecting rod; 7. Suction cup body; 8. Piston; 9. Mounting block; 10. Needle sleeve; 11. Needle; 12. Insert rod; 13. Slot; 14. Socket; 15. Pin; 16. Inner groove; 17. Limit rod; 18. Spring; 19. Pull rod; 20. Fixing block. DETAILED DESCRIPTION

[0026] The following will be combined with the attached embodiment of the present utility model Figure 1-Figure 5 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0027] See also Figure 1-5 In an embodiment of the utility model, an insulin injection pen includes: an injection pen barrel 1 and a pressing block 3: the injection pen barrel 1 is used to store liquid medicine, the fixing block 20 is fixedly connected to the upper end of the injection pen barrel 1, the needle sleeve 10 is connected to the upper end of the fixing block 20, and a disassembly and assembly mechanism is arranged between the fixing block 20 and the needle sleeve 10. Through the disassembly and assembly mechanism, the requirements for the patient's hand flexibility are reduced, the difficulty and time consumption when replacing the needle are reduced, and the difficulty of operation is reduced. A pressing block 3 is arranged at the lower end of the injection pen barrel 1, and an adsorption mechanism is arranged at the lower end of the pressing block 3. Through the adsorption mechanism, when the patient needs to temporarily place the injection pen during use, the risk of the injection pen rolling to the ground and causing damage due to flat placement can be effectively avoided.

[0028] In the embodiment of the utility model, the disassembly and assembly mechanism includes: a slot 14, an insertion rod 12, a slot 13, a latch 15, a pull rod 19, a limit rod 17, an inner slot 16 and a spring 18; the slot 14 is arranged on the upper end surface of the fixed block 20, providing a position for inserting the insertion rod 12 so that the insertion rod 12 can be connected to the fixed block 20, the insertion rod 12 is inserted and connected inside the slot 14, and as a connecting component, is inserted into the slot 14 to achieve engagement with other parts, the slot 13 is arranged on the outer side surface of the insertion rod 12, providing a position for the latch 15 to engage, the latch 15 is engaged inside the slot 13, and plays the role of fixing and limiting the rod 17 to ensure the stable connection of the insertion rod 12, the pull rods 19 are respectively fixedly connected to the outer sides of the latch 15, and are connected to the latch 15, so as to facilitate the movement of the latch 15 and realize the disassembly and assembly action, and the inner slot 16 is arranged inside the two ends of the fixed block 20, providing installation positions for the spring 18 and the limit rod 17 When the pull rod 19 is released, under the resilience of the spring 18, the limit rod 17 and the bayonet 15 slide inwardly until the bayonet 15 is inserted into the slot 13 to brake the insertion rod 12, thereby realizing the rapid installation of the needle 11.

[0029] In the embodiment of the utility model, the adsorption mechanism includes: a mounting block 9, a connecting rod 6 and a suction cup body 7; the mounting block 9 is fixedly connected to the lower end of the pressing block 3 by bolts, and plays the role of connecting the pressing block 3 and the connecting rod 6 to ensure the stability of the overall structure. The connecting rod 6 is fixed to the lower end of the mounting block 9 to connect the suction cup body 7 to the mounting block 9, so that the suction cup body 7 can be adjusted in position with the operation. The suction cup body 7 is fixedly installed at the lower end of the connecting rod 6. By being fixedly installed at the lower end of the connecting rod 6, it can fit tightly with the desktop to generate adsorption force, thereby vertically fixing the injection pen on the desktop to prevent rolling and damage.

[0030] In the embodiment of the utility model, the scale lines 4 are arranged on the outer surface of the injection pen barrel 1, so that the patient can visually see the injection dosage to ensure accurate medication.

[0031] In the embodiment of the utility model, the cover 2 is arranged at the upper end of the injection pen barrel 1, and plays a role of sealing and protection when not in use.

[0032] In the embodiment of the utility model, the needle 11 is arranged at the upper end of the needle cover 10, so as to ensure that the needle 11 remains stable during use and improve the accuracy of injection.

[0033] In the embodiment of the utility model, the piston rod 5 is telescopically connected to the lower end of the injection pen barrel 1, and one end of the piston rod 5 is fixedly connected to the piston 8. The piston 8 is slidably connected to the inner wall of the injection pen barrel 1 to realize the reciprocating motion of the piston, thereby extracting and injecting the drug, ensuring the stability and smoothness of the piston movement.

[0034] Working principle: When the patient needs to temporarily place the injection pen during use, he only needs to turn the injection pen upside down, let the suction cup body 7 fit tightly against the desktop, and then use his hand to apply force downward on the connecting rod 6 to make the suction cup body 7 firmly adsorbed on the desktop surface, so that the injection pen can be vertically fixed on the desktop, effectively avoiding the risk of the injection pen rolling off the ground and causing damage due to flat placement; when replacing the needle 11, pull the pull rod 19 outward to separate the latch pin 15 from the slot 13, and then pull out the needle 11 to disengage the insertion rod 12 from the slot 14, completing the needle. When installing, just pull the pull rod 19 outward again. At this time, the spring 18 is in a compressed state, so that the insertion rod 12 is inserted into the slot 14. Then release the pull rod 19. With the help of the rebound force of the spring 18, the pin 15 can be inserted into the slot 13. When the pin 15 is inserted into the slot 13, it can provide a stable connection to prevent the insertion rod 12 from moving, ensuring that the needle 11 remains stable during use, reducing the requirements for the patient's hand flexibility, reducing the difficulty and time consumption when replacing the needle 11, and reducing the difficulty of operation.

Claims

1. An insulin injection pen, comprising: The injection pen barrel (1) and the pressing block (3) are characterized in that: the upper end of the injection pen barrel (1) is fixedly connected to a fixing block (20), the upper end of the fixing block (20) is connected to a needle sleeve (10), a disassembly mechanism is provided between the fixing block (20) and the needle sleeve (10), the pressing block (3) is provided at the lower end of the injection pen barrel (1), and the lower end of the pressing block (3) is provided with an adsorption mechanism.

2. An insulin injection pen according to claim 1, characterized in that: The disassembly and assembly mechanism comprises: a slot (14), an insertion rod (12), a card slot (13), a card pin (15), a pull rod (19), a limit rod (17), an inner groove (16) and a spring (18); The upper surface of the fixed block (20) is provided with two slots (14), and the slots (14) are respectively inserted with an insertion rod (12), and the outer surface of the insertion rod (12) is respectively provided with a slot (13), and a latch (15) is latched inside the slot (13), and the outer side of the latch (15) is respectively fixedly connected with a pull rod (19), and the fixed block (20) has an inner groove (16) at both ends, and a spring (18) is arranged inside the inner groove (16), and the inner side of the spring (18) is connected with a limit rod (17), the limit rod (17) is slidably connected to the inner wall of the inner groove (16), and the limit rod (17) is fixedly connected to the outer surface of the latch (15).

3. An insulin injection pen according to claim 1, characterized in that: The adsorption mechanism comprises: a mounting block (9), a connecting rod (6) and a suction cup body (7); The lower end of the pressing block (3) is fixedly connected to a mounting block (9) via bolts, a connecting rod (6) is fixed to the lower end of the mounting block (9), and a suction cup body (7) is fixedly mounted to the lower end of the connecting rod (6).

4. An insulin injection pen according to claim 1, characterized in that: The outer surface of the injection pen barrel (1) is provided with scale lines (4).

5. An insulin injection pen according to claim 1, characterized in that: The upper end of the injection pen barrel (1) is provided with a sealing cover (2).

6. An insulin injection pen according to claim 1, characterized in that: The upper end of the needle sleeve (10) is provided with a needle head (11).

7. An insulin injection pen according to claim 1, characterized in that: A piston rod (5) is telescopically connected to the interior of the lower end of the injection pen barrel (1); one end of the piston rod (5) is fixedly connected to a piston (8); and the piston (8) is slidably connected to the inner wall of the injection pen barrel (1).

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