CN221014078U - Needle special for needling prevention implantable drug delivery device - Google Patents
Needle special for needling prevention implantable drug delivery device Download PDFInfo
- Publication number
- CN221014078U CN221014078U CN202322140015.5U CN202322140015U CN221014078U CN 221014078 U CN221014078 U CN 221014078U CN 202322140015 U CN202322140015 U CN 202322140015U CN 221014078 U CN221014078 U CN 221014078U
- Authority
- CN
- China
- Prior art keywords
- needle
- seat
- limiting
- tube
- needle tube
- Prior art date
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Links
- 238000012377 drug delivery Methods 0.000 title claims abstract description 21
- 230000002265 prevention Effects 0.000 title claims description 4
- 238000001802 infusion Methods 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 6
- 244000241796 Christia obcordata Species 0.000 claims description 5
- 208000012266 Needlestick injury Diseases 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000001467 acupuncture Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 210000003811 finger Anatomy 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a medical instrument, in particular to a needle special for an anti-needling implantable drug delivery device, which comprises a needle tube, a first limiting seat, a second limiting seat, a base and a limiting rod, wherein the needle tube moves downwards at the wide end of a wedge-shaped groove of the second limiting seat in the extending process of the limiting rod, when the limiting rod is pulled to the maximum length, the needle point part of the needle tube is positioned at the narrow end of the wedge-shaped groove under the pressure of an elastic low-connection part, so that the needle tube cannot move upwards and downwards, and the needle tube is protected by the base, the first limiting seat and the second limiting seat.
Description
Technical Field
The utility model relates to medical equipment, in particular to a special needle for an anti-needling implantable drug delivery device.
Background
After the implanted drug delivery device is implanted into the subcutaneous of a human body, the injection seat of the implanted drug delivery device needs to be punctured and injected, so that the drug liquid can be conveniently infused into the circulatory system or a specific part of the human body. In order to reduce the scraps produced during the puncturing process and to prolong the service life of the apparatus, special puncture and transfusion needles, namely 'special needles', are required.
The Chinese patent with the bulletin number CN211658283U discloses a special needle for an implantable drug delivery device, which specifically comprises a needle tube fixed on a needle handle, the needle tube is communicated with one end of an extension tube, the needle handle is fixed at the joint of the needle tube and the extension tube, and the needle tube of the patent is exposed to the outside, so that when a medical staff pulls out the needle tube, the needle tube is stained with blood of a patient, and various dangerous pathogens carried by the blood of the patient are infected, and when the needle tube accidentally damages the medical staff, the various dangerous pathogens can enter the medical staff to hurt the medical staff, so that the special needle for the implantable drug delivery device for preventing the needle puncture is needed to prevent the needle tube from accidentally damaging the medical staff when the needle tube is pulled out.
Disclosure of utility model
The technical problems to be solved by the utility model are as follows: provides a needle special for an anti-needling implantable drug delivery device, which can avoid the needle tube from injuring medical staff by mistake when the needle tube is pulled up.
In order to solve the technical problems, the utility model adopts the following technical scheme: 1. a needle for an anti-needle stick implantable drug delivery device, comprising:
the butterfly wing is arranged on two sides of the base, a groove is arranged in the base, and an elastic abutting part is arranged in the groove;
A needle tube;
the needle handle is connected with the needle tube and is positioned at one end far away from the needle tip of the needle tube;
The limiting device is connected to the base and comprises a first limiting seat, a first pivot shaft and a second limiting seat, the second limiting seat is pivoted with the first limiting seat through the first pivot shaft, a hole for accommodating the needle tube to pass through is formed between the second limiting seat and the first limiting seat in the axial X direction of the first pivot shaft, a wedge-shaped groove is formed in one side, facing the hole, of the second limiting seat, the wide end of the wedge-shaped groove is close to the first pivot shaft, the wide end of the wedge-shaped groove is larger than the diameter of the middle of the needle tube, and the narrow end of the wedge-shaped groove is smaller than the diameter of the middle of the needle tube; the elastic abutting part abuts against the second limiting seat and is used for applying pressure to the second limiting seat in the direction of the hole;
The limiting rod is of a folding structure, and two ends of the limiting rod are respectively connected with the needle handle and the first limiting seat;
when the limiting rod is folded, the middle part of the needle tube is positioned at the wide end of the wedge-shaped groove;
when the limit rod stretches to the maximum value, the needle point part of the needle tube is positioned at the narrow end of the wedge-shaped groove under the pressure of the elastic low joint part.
Further, be equipped with first buckle, second buckle, first supporting seat and second supporting seat in the recess, be equipped with on the first spacing seat with first buckle cooperation first locating part, with second buckle cooperation second locating part, with first supporting seat complex first fixing base, with second supporting seat complex second fixing base, realized base and first spacing seat detachable and be connected.
Further, needle wings for holding are arranged on two sides of the needle handle.
Further, the infusion tube is also included, one end of the infusion tube is connected with one end far away from the needle tip of the needle tube, and the infusion tube is coaxially arranged in the needle handle in a penetrating way.
Further, the other end of the infusion tube is provided with a connecting seat, and a protective cap is arranged on the connecting seat.
Further, the limiting piece comprises a first connecting rod, a second pivoting shaft and a second connecting rod, wherein the first connecting rod is pivoted with the second connecting rod through the second pivoting shaft, and the axial direction of the second pivoting shaft is Y-direction.
The utility model has the beneficial effects that: including needle tubing, first spacing seat, second spacing seat, base and gag lever post, gag lever post extension in-process, the needle tubing moves down at the wide end of the wedge groove of second spacing seat, when the gag lever post draws to maximum length, under the pressure of elasticity low joint portion, the needle point position of needle tubing is located the narrow end of wedge groove, makes the needle tubing unable reciprocate to make the needle tubing protected by base, first spacing seat and second limiting seat, has these three-layer protection, thereby makes medical personnel when extracting the needle tubing, the needle point position of needle tubing can't accidentally injure medical personnel.
Drawings
FIG. 1 is an exploded view of a needle dedicated to an anti-spike implantable drug delivery device according to an embodiment of the present utility model;
FIG. 2 is a schematic view showing the structure of a base of a needle for an anti-needling implantable drug delivery device according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a limiting device for a needle for an anti-spike implantable drug delivery device according to an embodiment of the present utility model;
Fig. 4 is an enlarged view of a portion a of fig. 3.
Description of the reference numerals:
1. A base; 11. butterfly wings; 12. a groove; 121. an elastic low-connection part; 122. a first buckle; 123. a second buckle; 124. a first support base; 125. a second support base; 2. a needle tube; 3. a needle handle; 31. a needle wing; 4. a limiting device; 41. the first limiting seat; 411. a first limiting member; 412. a second limiting piece; 413. a first fixing seat; 414. the second fixing seat; 42. a first pivot shaft; 43. the second limiting seat; 5. a limit rod; 51. a first connecting rod; 52. a second pivot shaft; 53. a second connecting rod; 6. an infusion tube; 7. a connecting seat; 8. and a protective cap.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 4, a needle dedicated for an anti-needling implantable drug delivery device, comprising:
The base 1, two sides of the base 1 are provided with butterfly wings 11, a groove 12 is arranged in the base 1, and an elastic abutting part is arranged in the groove 12;
a needle tube 2;
A needle handle 3, the needle handle 3 is connected with the needle tube 2, and the needle handle 3 is positioned at one end far away from the needle tip of the needle tube 2;
The limiting device 4 is connected to the base 1, the limiting device 4 comprises a first limiting seat 41, a first pivot shaft 42 and a second limiting seat 43, the second limiting seat 43 is pivoted with the first limiting seat 41 through the first pivot shaft 42, a hole for accommodating the needle tube 2 to pass through is formed between the second limiting seat 43 and the first limiting seat 41 in the axial X direction of the first pivot shaft 42, a wedge-shaped groove is formed in one side, facing the hole, of the second limiting seat 43, the wide end of the wedge-shaped groove is close to the first pivot shaft 42, the wide end of the wedge-shaped groove is larger than the diameter of the middle part of the needle tube 2, and the narrow end of the wedge-shaped groove is smaller than the middle diameter of the needle tube 2; the elastic abutting part abuts against the second limiting seat 43 and is used for applying pressure to the second limiting seat 43 in the hole direction;
The limiting rod 5 is of a folding structure, and two ends of the limiting rod 5 are respectively connected with the needle handle 3 and the first limiting seat 41;
when the limiting rod 5 is folded, the middle part of the needle tube 2 is positioned at the wide end of the wedge-shaped groove;
When the limit lever 5 is extended to the maximum value, the tip portion of the needle tube 2 is positioned at the narrow end of the wedge-shaped groove under the pressure of the elastic low joint portion 121.
In the above embodiment, when in use, the left hand finds the position of the injection seat of the transfusion port, the thumb, the index finger and the middle finger are triangular, the transfusion port is arched, the other hand holds the needle tube 2 to vertically pierce the puncture diaphragm from the center of the three fingers until reaching the bottom of the liquid storage tank, then the limit rod 5 is extended, during the extension, since the diameter of the needle point part of the needle tube 2 is smaller than the diameter of the middle part of the needle tube 2, the needle tube 2 moves down in a sliding manner from the wide end to the narrow end of the second limit seat 43, during the production, the elastic low joint part 121 always applies elastic pressure to the second limit seat 43 until the needle point part of the needle tube 2 reaches the narrow end, the elastic low-connection part 121 limits the movement of the second limiting seat 43, so that the needle tube 2 cannot move up and down, the needle tip part of the needle tube 2 is fixed in the second limiting seat 43, the needle tube 2 is protected by the base 1, the first limiting seat 41 and the second limiting seat 43, and the three layers of protection are adopted, so that when the needle tube 2 is pulled out by medical staff, the needle tip part of the needle tube 2 cannot accidentally injure the medical staff, and the used needle special for the needling prevention implantable drug delivery device is discarded in a fixed collecting area, and when the recovery is intensively eliminated, the needle tip part of the needle tube 2 is protected, and the recovery staff cannot be injured easily.
As an alternative embodiment, the groove 12 of the base 1 is provided with a first buckle 122, a second buckle 123, a first supporting seat 124 and a second supporting seat 125, the first limiting seat 41 is provided with a first limiting piece 411 matched with the first buckle 122, a second limiting piece 412 matched with the second buckle 123, a first fixing seat 413 matched with the first supporting seat 124 and a second fixing seat 414 matched with the second supporting seat 125, so that the detachable connection between the base 1 and the first limiting seat 41 is realized.
In the above embodiment, the first buckle 122 is matched with the first limiting member 411, the second buckle 123 is matched with the second limiting member 412, the first supporting seat 124 is in surface-to-surface contact with the first fixing seat 413, and the second supporting seat 125 is in surface-to-surface contact with the second fixing seat 414, so that the whole first limiting seat 41 is detachably connected in the groove 12 of the base 1.
As an alternative embodiment, the needle handle 3 is provided with wings 31 for gripping on both sides.
In the above embodiment, when the needle tip of the needle tube 2 is inserted into the injection seat of the infusion tube 6, the medical staff holds the needle wing 31 of the needle handle 3 with one hand, and presses the butterfly wings 11 on both sides of the base 1 with the thumb and the index finger of the other hand, so that the stopper is elongated, thereby moving the needle tube 2 downward, and finally, the needle tip of the needle tube 2 is positioned in the second stopper seat 43.
As an alternative embodiment, the infusion tube 6 is further included, one end of the infusion tube 6 is connected with one end far away from the needle tip of the needle tube 2, and the infusion tube 6 is coaxially arranged in the needle handle 3 in a penetrating way.
As an alternative embodiment, the other end of the infusion tube 6 is provided with a connecting seat 7, and a protective cap 8 is arranged on the connecting seat 7.
In the above embodiment, the protective cap 8 is in threaded connection with the connecting seat 7, and the protective cap 8 and the connecting seat 7 are externally connected with other injection devices, so that transfusion is convenient.
As an alternative embodiment, the limiting rod 5 includes a first connecting rod 51, a second pivot shaft 52 and a second connecting rod 53, where the first connecting rod 51 is pivoted to the second connecting rod 53 through the second pivot shaft 52, and the axial direction of the second pivot shaft 52 is Y-direction.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (6)
1. A needle for an anti-needle stick implantable drug delivery device, comprising:
the butterfly wing is arranged on two sides of the base, a groove is arranged in the base, and an elastic abutting part is arranged in the groove;
A needle tube;
the needle handle is connected with the needle tube and is positioned at one end far away from the needle tip of the needle tube;
The limiting device is connected to the base and comprises a first limiting seat, a first pivot shaft and a second limiting seat, the second limiting seat is pivoted with the first limiting seat through the first pivot shaft, a hole for accommodating the needle tube to pass through is formed between the second limiting seat and the first limiting seat in the axial X direction of the first pivot shaft, a wedge-shaped groove is formed in one side, facing the hole, of the second limiting seat, the wide end of the wedge-shaped groove is close to the first pivot shaft, the wide end of the wedge-shaped groove is larger than the diameter of the middle of the needle tube, and the narrow end of the wedge-shaped groove is smaller than the diameter of the middle of the needle tube; the elastic abutting part abuts against the second limiting seat and is used for applying pressure to the second limiting seat in the direction of the hole;
the limiting piece is of a folding structure, and two ends of the limiting piece are respectively connected with the needle handle and the first limiting seat;
when the limiting piece is folded, the middle part of the needle tube is positioned at the wide end of the wedge-shaped groove;
When the limiting piece stretches to the maximum value, the needle point part of the needle tube is positioned at the narrow end of the wedge-shaped groove under the pressure of the elastic low joint part.
2. The needle special for the needling prevention implantable drug delivery device according to claim 1, wherein a first buckle, a second buckle, a first supporting seat and a second supporting seat are arranged in a groove of the base, a first limiting piece matched with the first buckle, a second limiting piece matched with the second buckle, a first fixing seat matched with the first supporting seat and a second fixing seat matched with the second supporting seat are arranged on the first limiting seat, and the detachable connection of the base and the first limiting seat is realized.
3. The needle for an anti-acupuncture implantable drug delivery device as set forth in claim 1, wherein the needle handle is provided with wings for gripping on both sides thereof.
4. The needle for an anti-needlestick implantable drug delivery device of claim 1, further comprising an infusion tube, wherein one end of the infusion tube is connected to an end remote from the tip of the needle tube, and the infusion tube is coaxially disposed through the needle handle.
5. The needle for an anti-puncture implantable drug delivery device according to claim 4, wherein the other end of the infusion tube is provided with a connecting seat, and a protective cap is arranged on the connecting seat.
6. The needle for an anti-puncture implantable drug delivery device according to claim 1, wherein the limiting member comprises a first connecting rod, a second pivot shaft and a second connecting rod, the first connecting rod is pivoted with the second connecting rod through the second pivot shaft, and the axial direction of the second pivot shaft is the Y direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322140015.5U CN221014078U (en) | 2023-08-10 | 2023-08-10 | Needle special for needling prevention implantable drug delivery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322140015.5U CN221014078U (en) | 2023-08-10 | 2023-08-10 | Needle special for needling prevention implantable drug delivery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221014078U true CN221014078U (en) | 2024-05-28 |
Family
ID=91134314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322140015.5U Active CN221014078U (en) | 2023-08-10 | 2023-08-10 | Needle special for needling prevention implantable drug delivery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221014078U (en) |
-
2023
- 2023-08-10 CN CN202322140015.5U patent/CN221014078U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |