Insulin syringe

Abstract

The insulin syringe comprises a medicine storage barrel, one end of the medicine storage barrel is slidably connected with a medicine pushing rod, the end, located in the medicine storage barrel, of the medicine pushing rod is fixedly connected with a medicine pushing piece, the other end of the medicine storage barrel is fixedly connected with a storage barrel, the interior of the storage barrel is slidably connected with a displacement piece, and the middle of the displacement piece is fixedly connected with a medicine supply pipe; one end of the medicine supply tube penetrates out of the storage barrel, a detachable medicine applying needle head is arranged at the end, located outside the storage barrel, of the medicine supply tube, a protection assembly is assembled at one end of the storage barrel, the protection assembly is used for protecting the medicine applying needle head when the medicine applying needle head is not used, and the protection assembly comprises a positioning lug. Through structural cooperation of the protection assembly, after the pesticide application needle head is used, the pesticide application needle head can be conveniently and rapidly protected in a storage mode, secondary injury caused by mistaken touch of personnel is avoided, and overall use is safer.

Description

Technical Field

[0001] The present invention relates to the technical field of syringes, and particularly to an insulin syringe. Background Art

[0002] Insulin is a protein hormone secreted by pancreatic islet β cells in the pancreas stimulated by endogenous or exogenous substances such as glucose, lactose, ribose, arginine, glucagon, etc.

[0003] Among them, insulin is injected into the human body through a syringe, which can help diabetic patients reduce blood sugar levels and promote glycogen, fat, and protein synthesis to control the patient's condition.

[0004] However, after injection with a syringe in the traditional technology, due to the direct exposure of the needle tip, it is extremely easy to cause secondary harm to people when accidentally touched.

[0005] Therefore, the present invention provides an insulin syringe to solve the above problems. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides an insulin syringe to solve the above problems.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: an insulin syringe includes a medicine storage cylinder. One end of the medicine storage cylinder is slidably connected with a medicine pushing rod. One end of the medicine pushing rod located inside the medicine storage cylinder is fixedly connected with a medicine pushing piece. The other end of the medicine storage cylinder is fixedly connected with a storage cylinder. A displacement piece is slidably connected inside the storage cylinder. A medicine supply pipe is fixedly connected to the middle of the displacement piece. One end of the medicine supply pipe passes through the storage cylinder. A detachable application needle is provided at the end of the medicine supply pipe located outside the storage cylinder. A protection component is assembled at one end of the storage cylinder. The protection component is used to protect the application needle in a non-use state.

[0008] Preferably, the protection component includes positioning ears, support shaft rods, adjustment frames, protective covers, linkage ears, and linkage rods. Both sides of one end of the storage cylinder are fixedly connected with positioning ears. A support shaft rod is rotatably connected to the middle of the positioning ear. An adjustment frame is fixedly connected to the middle of the support shaft rod. A protective cover is fixedly connected to the end of the adjustment frame away from the support shaft rod. Linkage ears are fixedly connected to the inner sides of both protective covers. A linkage rod is rotatably connected to one end of the linkage ear. A linkage ring is fixedly connected to the end of the medicine supply pipe close to the application needle. Mounting seats are fixedly connected to both sides of the linkage ring. One ends of the two linkage rods away from the linkage ears are respectively rotatably connected to the two mounting seats. A transmission component is arranged on the outer side of the medicine storage cylinder close to one end of the storage cylinder. The transmission component is used to drive the protective cover to flip.

[0009] Preferably, the transmission assembly includes an eccentric plate, a locking seat, a transmission rod, a transmission frame, and a guiding rod. Eccentric plates are fixedly connected to the tops of both support shaft rods. A linkage through groove is formed in the middle of the eccentric plate. A locking seat is fixedly connected to the outer side of the medicine storage cylinder near the storage cylinder. One end of the locking seat is slidably connected to a transmission rod. A transmission frame is fixedly connected to the end of the transmission rod near the support shaft rod. A guiding rod is fixedly connected to one end of the transmission frame. The two eccentric plates are also assembled outside the guiding rod through the linkage through groove. An extrusion sheet is fixedly connected to the end of the transmission rod inside the locking seat. A spiral spring is fixedly connected between one side of the extrusion sheet and the locking seat. A locking shaft rod is rotatably connected to the middle of the other side of the extrusion sheet. A locking block is fixedly connected to the outer side of the locking shaft rod. A matching lock block is fixedly connected to the middle inside the locking seat. The locking block is snap-connected to the matching lock block.

[0010] Preferably, an insertion ring is fixedly connected to the end of the medicine application needle connected to the medicine supply pipe. A slot is formed between the outer wall and the inner wall of the medicine supply pipe near the medicine application needle. The insertion ring is inserted into the slot. A stabilizing rod is fixedly connected to the end of the medicine application needle near the medicine supply pipe. A quick-installation seat adapted to the stabilizing rod is fixedly connected to the end of the medicine supply pipe near the medicine application needle. A quick-installation groove is formed in the quick-installation seat. A limiting hole is formed at the end of the quick-installation groove. The stabilizing rod is snap-connected to the inside of the limiting hole.

[0011] Preferably, an observation window is formed on the outer side of the medicine storage cylinder. A sealing plate made of a transparent material is arranged inside the observation window. Scales are arranged at the positions corresponding to the observation window on the outer side of the medicine storage cylinder.

[0012] Preferably, sealing rings are fixedly connected to the outer sides of the medicine pushing tablet and the displacement tablet. The sealing rings are made of rubber.

[0013] Preferably, a rotating shaft is arranged at the end of the linkage rod connected to the linkage ear. The linkage rod is connected to the linkage ear through the rotating shaft.

[0014] Preferably, the locking block has an arc-shaped structure. An arc-shaped hole is formed in the middle of the matching lock block. The locking block is snap-connected to the inside of the arc-shaped hole.

[0015] Preferably, a feedback rod is fixedly connected to the side of the extrusion sheet close to the spiral spring. A noise reduction pad is fixedly connected to the end of the feedback rod away from the extrusion sheet.

[0016] Preferably, the quick-installation seat is made of plastic. The diameter of the limiting hole is larger than the height of the quick-installation groove.

[0017] Beneficial effects

[0018] The present invention provides an insulin syringe. Compared with the prior art, it has the following beneficial effects:

[0019] For this insulin syringe, through the structural cooperation of the protection component, after the administration needle is used, it can be conveniently stored and protected, avoiding secondary injury caused by accidental contact by personnel, making the overall use safer.

[0020] For this insulin syringe, through the structural cooperation of the stability rod, quick-installation seat, quick-installation groove and limit hole, when the administration needle becomes blunt, it can be quickly separated from the drug supply tube for replacement, greatly improving the overall convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the whole of the present invention;

[0022] Figure 2 is a side view of the present invention;

[0023] Figure 3 is a schematic structural diagram of the protection component of the present invention;

[0024] Figure 4 is a schematic separation structural diagram of the support shaft rod and the adjustment frame of the present invention;

[0025] Figure 5 is a schematic structural diagram of the transmission component of the present invention;

[0026] Figure 6 is a schematic structural diagram of the locking block of the present invention;

[0027] Figure 7 is a schematic separation structural diagram of the drug supply tube and the administration needle of the present invention;

[0028] Figure 8 is a schematic separation structural diagram of the stability rod and the quick-installation seat of the present invention.

[0029] In the figure, 1 is a medicine storage cylinder; 2 is a medicine pushing rod; 3 is a medicine pushing piece; 4 is a storage cylinder; 5 is a displacement piece; 6 is a drug supply tube; 7 is an administration needle; 8 is a protection component; 9 is a positioning ear; 10 is a support shaft rod; 11 is an adjustment frame; 12 is a protective cover; 13 is a linkage ear; 14 is a linkage rod; 15 is a linkage ring; 16 is a mounting seat; 17 is an eccentric plate; 18 is a linkage through groove; 19 is a locking seat; 20 is a transmission rod; 21 is a transmission frame; 22 is a guiding rod; 23 is an extrusion piece; 24 is a spiral spring; 25 is a locking shaft rod; 26 is a locking block; 27 is a lock-matching block; 28 is a feedback rod; 29 is an insertion ring; 30 is a slot; 31 is a stability rod; 32 is a quick-installation seat; 33 is a quick-installation groove; 34 is a limit hole. DETAILED DESCRIPTION OF THE INVENTION

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1:

[0032] Please refer to Figure 1-8 , an insulin syringe, including a medicine storage cylinder 1, one end of the medicine storage cylinder 1 is slidably connected with a medicine pushing rod 2, one end of the medicine pushing rod 2 located inside the medicine storage cylinder 1 is fixedly connected with a medicine pushing piece 3, the other end of the medicine storage cylinder 1 is fixedly connected with a storage cylinder 4, a displacement piece 5 is slidably connected inside the storage cylinder 4, a medicine supply pipe 6 is fixedly connected to the middle of the displacement piece 5, and one end of the medicine supply pipe 6 passes through the storage cylinder 4, and a detachable application needle 7 is arranged at one end of the medicine supply pipe 6 located outside the storage cylinder 4. A protective component 8 is assembled at one end of the storage cylinder 4, and the protective component 8 is used to protect the application needle 7 in the non-use state;

[0033] Specifically, an observation window is opened on the outer side of the medicine storage cylinder 1, a plugging plate made of a transparent material is arranged inside the observation window, and scales are arranged at the positions corresponding to the observation window on the outer side of the medicine storage cylinder 1. By using the observation window, the state of insulin in the medicine storage cylinder 1 can be intuitively reflected, and the remaining amount of insulin can be read in combination with the scales;

[0034] Specifically, sealing rings are fixedly connected to the outer sides of the medicine pushing piece 3 and the displacement piece 5, and the material of the sealing rings is rubber. By using the sealing rings, the connection gaps between the medicine pushing piece 3 and the inner wall of the medicine storage cylinder 1 and between the displacement piece 5 and the storage cylinder 4 can be blocked, so as to prevent insulin from running out from the connection gaps between the medicine pushing piece 3 and the inner wall of the medicine storage cylinder 1 and between the displacement piece 5 and the storage cylinder 4;

[0035] One end of the application needle 7 connected to the medicine supply pipe 6 is fixedly connected with an insertion ring 29. A slot 30 is opened between the outer wall and the inner wall of one end of the medicine supply pipe 6 close to the application needle 7, and the insertion ring 29 is inserted into the slot 30. One end of the application needle 7 close to the medicine supply pipe 6 is fixedly connected with a stability rod 31, and one end of the medicine supply pipe 6 close to the application needle 7 is fixedly connected with a quick installation seat 32 adapted to the stability rod 31. A quick installation groove 33 is opened on the quick installation seat 32, a limiting hole 34 is opened at the end of the quick installation groove 33, and the stability rod 31 is clamped and connected inside the limiting hole 34;

[0036] Specifically, the material of the quick - mounting seat 32 is plastic, and the diameter of the limiting hole 34 is greater than the height of the quick - mounting groove 33. Utilizing the material characteristics of the quick - mounting seat 32, the quick - mounting seat 32 can deform. And through the dimensional changes of the limiting hole 34 and the quick - mounting groove 33, when the stability - maintaining rod 31 is moved into the limiting hole 34, the quick - mounting groove 33 can block the stability - maintaining rod 31 to lock the position of the stability - maintaining rod 31.

[0037] The protection component 8 includes positioning ears 9, support shaft rods 10, adjustment frames 11, protective covers 12, linkage ears 13 and linkage rods 14. Both sides of one end of the storage cylinder 4 are fixedly connected with positioning ears 9. The middle of the positioning ears 9 is rotatably connected with support shaft rods 10. The middle of the support shaft rods 10 is fixedly connected with adjustment frames 11. One end of the adjustment frame 11 away from the support shaft rod 10 is fixedly connected with a protective cover 12. The inner sides of the two protective covers 12 are fixedly connected with linkage ears 13. One end of the linkage ears 13 is rotatably connected with linkage rods 14. One end of the medicine supply tube 6 close to the medicine application needle 7 is fixedly connected with a linkage ring 15. Both sides of the linkage ring 15 are fixedly connected with mounting seats 16. And the ends of the two linkage rods 14 away from the linkage ears 13 are respectively rotatably connected with the two mounting seats 16. A transmission component is arranged on the outer side of one end of the medicine storage cylinder 1 close to the storage cylinder 4, and the transmission component is used to drive the protective cover 12 to flip.

[0038] Furthermore, one end of the linkage rod 14 connected to the linkage ear 13 is provided with a rotating shaft, and the linkage rod 14 is connected to the linkage ear 13 through the rotating shaft. By means of the setting of the rotating shaft, the linkage rod 14 can be effectively assembled with the linkage ear 13, ensuring the smoothness of the linkage of the linkage rod 14.

[0039] Embodiment Two:

[0040] Please refer to Figure 1-8 , this embodiment provides a technical solution on the basis of Embodiment One: The transmission component includes an eccentric plate 17, a locking seat 19, a transmission rod 20, a transmission frame 21 and a guiding rod 22. The tops of the two support shaft rods 10 are fixedly connected with eccentric plates 17. A linkage through - slot 18 is opened in the middle of the eccentric plate 17. A locking seat 19 is fixedly connected to the outer side of one end of the medicine storage cylinder 1 close to the storage cylinder 4. One end of the locking seat 19 is slidably connected with a transmission rod 20. One end of the transmission rod 20 close to the support shaft rod 10 is fixedly connected with a transmission frame 21. One end of the transmission frame 21 is fixedly connected with a guiding rod 22. And the two eccentric plates 17 are also assembled outside the guiding rod 22 through the linkage through - slot 18. One end of the transmission rod 20 located inside the locking seat 19 is fixedly connected with a pressing piece 23. A spiral spring 24 is fixedly connected between one side of the pressing piece 23 and the locking seat 19. The middle of the other side of the pressing piece 23 is rotatably connected with a locking shaft rod 25. A locking block 26 is fixedly connected to the outer side of the locking shaft rod 25. The middle of the inner side of the locking seat 19 is fixedly connected with a matching lock block 27. And the locking block 26 is in clamping connection with the matching lock block 27.

[0041] Preferably, the locking block 26 is of an arc structure, and an arc-shaped hole is formed in the middle of the lock-matching block 27, and the locking block 26 is snap-connected inside the arc-shaped hole. By virtue of the structural characteristics of the locking block 26, the locking block 26 can be screwed into the lock-matching block 27 by rotating the locking shaft rod 25, which can ensure the connection efficiency between the locking block 26 and the lock-matching block 27 while ensuring the stability when the lock-matching block 27 is connected to the locking block 26;

[0042] Furthermore, a feedback rod 28 is fixedly connected to one side of the pressing piece 23 close to the spiral spring 24, and a noise reduction pad is fixedly connected to the end of the feedback rod 28 away from the pressing piece 23. By virtue of the arrangement of the feedback rod 28, when the feedback rod 28 contacts the locking seat 19, the transmission rod 20 will not be able to slide further. At this time, the position of the locking block 26 corresponds to that of the lock-matching block 27, so as to realize the guidance of the assembly position of the locking block 26;

[0043] At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0044] Working principle: First, push the locking shaft rod 25. In cooperation with the connection between the locking shaft rod 25 and the pressing piece 23, the locking shaft rod 25 can drive the transmission frame 21 to displace by means of the pressing piece 23 and the transmission rod 20. In cooperation with the connection between the linkage through groove 18 and the guiding rod 22, when the position of the guiding rod 22 is adjusted, the eccentric plate 17 can be pushed. Since the eccentric plate 17 is supported by the support shaft rod 10, the adjustment frame 11 can be driven to rotate by the support shaft rod 10, so that the two protective covers 12 move away from each other, exposing the medicine application needle 7. And because the linkage rod 14 is connected between the protective cover 12 and the carrying seat 16, when the protective cover 12 flips, the medicine supply tube 6 can be pulled by the linkage rod 14, prompting the medicine supply tube 6 to drive the displacement piece 5 to displace inside the storage cylinder 4, so as to move the medicine application needle 7 out of the protective cover 12;

[0045] After the medicine application needle 7 is completely exposed, the position of the locking block 26 will correspond to that of the lock-matching block 27. Then rotate the locking shaft rod 25. In cooperation with the connection between the locking shaft rod 25 and the locking block 26, the locking block 26 can rotate following the locking shaft rod 25 until the locking block 26 is snapped into the lock-matching block 27, thereby locking the position of the medicine application needle 7. Then pull the medicine pushing rod 2. In cooperation with the medicine pushing piece 3, a negative pressure is formed inside the medicine storage cylinder 1, and insulin is extracted through the medicine application needle 7. After extraction, it can be injected into the patient's body through the medicine application needle 7;

[0046] After injection, rotate the locking shaft rod 25 to move the locking block 26 out of the mating lock block 27, and then release the locking shaft rod 25. Since the pressing piece 23 can compress the spiral spring 24 when moving, when the locking shaft rod 25 is released, the pressing piece 23 can be pushed by the spiral spring 24, causing the two protective covers 12 to approach each other. At the same time, the medicine application needle 7 moves into the inner side of the protective cover 12. When the two protective covers 12 are joined together, the medicine application needle 7 can be protected by the protective cover 12 to avoid secondary injury caused by accidental contact by personnel;

[0047] And after the medicine application needle 7 is blunted, rotate the medicine application needle 7 to displace the stability maintenance rod 31 towards the quick installation groove 33 and compress the quick installation seat 32, causing the quick installation seat 32 to deform until the stability maintenance rod 31 can pass through the quick installation groove 33. When the stability maintenance rod 31 completely disengages from the quick installation groove 33, the medicine application needle 7 can be unlocked, and then the medicine application needle 7 can be removed and replaced.

Claims

1. An insulin syringe, characterized in that: The invention comprises a drug storage cartridge (1), one end of which is slidably connected to a drug pushing rod (2), one end of which is located inside the drug storage cartridge (1) and fixedly connected to a drug pushing tablet (3), the other end of which is fixedly connected to a storage cartridge (4), the interior of which is slidably connected to a displacement plate (5), a middle portion of which is fixedly connected to a drug supply tube (6), and one end of which passes through the storage cartridge (4), a detachable drug delivery needle (7) being provided at one end of the drug supply tube (6) located outside the storage cartridge (4), and a protective component (8) being provided at one end of the storage cartridge (4), the protective component (8) being used to protect the drug delivery needle (7) when the drug delivery needle (7) is not in use.

2. An insulin syringe according to claim 1, characterized in that: The protective assembly (8) comprises a positioning ear (9), a supporting shaft (10), an adjusting frame (11), a protective cover (12), a linkage ear (13) and a linkage rod (14); both sides of one end of the storage tube (4) are fixedly connected with the positioning ear (9); the middle part of the positioning ear (9) is rotatably connected with the supporting shaft (10); the middle part of the supporting shaft (10) is fixedly connected with the adjusting frame (11); one end of the adjusting frame (11) away from the supporting shaft (10) is fixedly connected with the protective cover (12); the inner sides of the two protective covers (12) are A linkage ear (13) is fixedly connected, one end of the linkage ear (13) is rotatably connected to a linkage rod (14), one end of the drug supply tube (6) close to the drug dispensing needle (7) is fixedly connected to a linkage ring (15), both sides of the linkage ring (15) are fixedly connected to mounting seats (16), and the ends of the two linkage rods (14) away from the linkage ear (13) are rotatably connected to the two mounting seats (16), and a transmission component is arranged on the outer side of one end of the drug storage cylinder (1) close to the storage cylinder (4), and the transmission component is used to drive the protective cover (12) to flip.

3. An insulin syringe according to claim 2, characterized in that: The transmission assembly comprises an eccentric plate (17), a locking seat (19), a transmission rod (20), a transmission frame (21) and a guide rod (22); the top ends of the two support shafts (10) are fixedly connected to the eccentric plates (17); a linkage through groove (18) is provided in the middle of the eccentric plates (17); the outer side of one end of the drug storage cylinder (1) close to the storage cylinder (4) is fixedly connected to the locking seat (19); one end of the locking seat (19) is slidably connected to the transmission rod (20); one end of the transmission rod (20) close to the support shaft (10) is fixedly connected to the transmission frame (21); one end of the transmission frame (21) is fixedly connected to the guide rod (22), and the two eccentric plates (17) are also assembled on the outer side of the guide rod (22) through the linkage groove (18); one end of the transmission rod (20) located on the inner side of the locking seat (19) is fixedly connected with an extrusion sheet (23); a spiral spring (24) is fixedly connected between one side of the extrusion sheet (23) and the locking seat (19); the middle part of the other side of the extrusion sheet (23) is rotatably connected with a locking shaft (25); the outer side of the locking shaft (25) is fixedly connected with a locking block (26); the middle part of the inner side of the locking seat (19) is fixedly connected with a matching locking block (27); and the locking block (26) is connected to the matching locking block (27) by snapping.

4. An insulin syringe according to claim 1, characterized in that: The end of the medication needle (7) connected to the medication supply tube (6) is fixedly connected with an insert ring (29), a slot (30) is provided between the outer wall and the inner wall of the medication supply tube (6) near the medication needle (7), and the insert ring (29) is inserted into the slot (30), the end of the medication needle (7) near the medication supply tube (6) is fixedly connected with a stabilizing rod (31), the end of the medication supply tube (6) near the medication needle (7) is fixedly connected with a quick-release seat (32) adapted to the stabilizing rod (31), a quick-release groove (33) is provided on the quick-release seat (32), a limiting hole (34) is provided at the end of the quick-release groove (33), and the stabilizing rod (31) is snap-connected to the inside of the limiting hole (34).

5. An insulin syringe according to claim 1, characterized in that: An observation window is provided on the outside of the drug storage cartridge (1), a sealing plate made of a transparent material is provided inside the observation window, and a scale is provided on the outside of the drug storage cartridge (1) at a position corresponding to the observation window.

6. An insulin syringe according to claim 1, characterized in that: The outer sides of the medicine pushing sheet (3) and the displacement sheet (5) are both fixedly connected with sealing rings, and the material of the sealing rings is rubber.

7. An insulin syringe according to claim 2, characterized in that: One end of the linkage rod (14) connected to the linkage ear (13) is provided with a rotating shaft, and the linkage rod (14) is connected to the linkage ear (13) via the rotating shaft.

8. An insulin syringe according to claim 3, characterized in that: The locking block (26) is an arc-shaped structure, an arc-shaped hole is opened in the middle of the matching locking block (27), and the locking block (26) is snap-connected inside the arc-shaped hole.

9. An insulin syringe according to claim 3, characterized in that: A feedback rod (28) is fixedly connected to one side of the extrusion sheet (23) close to the coil spring (24), and a noise reduction pad is fixedly connected to one end of the feedback rod (28) away from the extrusion sheet (23).

10. An insulin syringe according to claim 4, characterized in that: The material of the quick-install seat (32) is plastic, and the diameter of the limiting hole (34) is greater than the height of the quick-install groove (33).

Images