CN214232319U - Prevent syringe of acupuncture - Google Patents
Prevent syringe of acupuncture Download PDFInfo
- Publication number
- CN214232319U CN214232319U CN202022714615.4U CN202022714615U CN214232319U CN 214232319 U CN214232319 U CN 214232319U CN 202022714615 U CN202022714615 U CN 202022714615U CN 214232319 U CN214232319 U CN 214232319U
- Authority
- CN
- China
- Prior art keywords
- needle
- syringe
- cap
- needle head
- side opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001467 acupuncture Methods 0.000 title claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims abstract description 27
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 208000012266 Needlestick injury Diseases 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 206010064091 Iatrogenic infection Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a prevent syringe of acupuncture belongs to medical machine technical field. The needle comprises a push rod piston, a needle cylinder, a separated needle head and a needle cap for covering the needle head, wherein a long side opening is formed in the side wall of the needle cap along the length direction of the needle cap, the opening width of the lower end of the side opening is larger than the width of the widest part of a needle head seat, and the needle head seat can enter the needle cap from the side opening; a convex ring which is convex in the radial direction is arranged on the inner side wall of the lower end of the needle cap along the circumferential direction, and the inner diameter of the convex ring is smaller than the external dimension of the lower end of the needle head seat, so that the needle head seat can not fall out from the opening of the lower end of the needle cylinder; the inside wall of the needle cap is provided with two raised blocking parts, so that the needle head seat cannot be separated from the space between the two blocking parts and the side opening when not acted by external force. The utility model discloses a structure to the needle cap improves, can reach simultaneously and prevent the acupuncture and conveniently pull out the purpose of syringe needle.
Description
Technical Field
The utility model relates to the technical field of medical machinery, in particular to a syringe capable of preventing acupuncture.
Background
At present, an injector commonly used in hospitals mainly comprises a piston, a needle cylinder, a separated needle head and a needle cap matched with the needle head, wherein the needle cap plays a role in protecting the needle head. One end of the needle cap is provided with an opening for inserting the needle head, the needle cap is taken down when in use, the needle cap is taken up after the injector is used up, and the needle head is sleeved back into the needle cap by two hands relatively. However, the lower end opening area of the existing needle cap is small, so that when medical staff hold the needle cylinder to back the needle cap, accidents of needle stick injuries are easy to happen. The needle stick injury is an accidental injury which is deep in the skin and enough to cause the bleeding of a wounded person, and after the needle stick injury, blood polluted by pathogens often enters the body of the wounded person to cause iatrogenic infection transmitted by the blood, so that great hidden danger exists in the personal safety of medical care personnel. In addition, when the injector is used for extracting the blood gas for analysis, the needle head needs to be pulled out for reuse, so the injector also has the characteristic of conveniently pulling out the needle head.
The utility model discloses a chinese utility model patent that publication number is CN210963387U discloses a "prevent returning cover stabbing needle cap and prevent returning cover stabbing syringe", should prevent returning cover stabbing needle cap including set up at the front end and be used for accomodating the syringe needle of syringe needle and set up the cylinder sleeve pipe at the rear end and be used for entangling the syringe cylinder, the syringe needle is accomodate the pipe and is cylindrical, the cylinder sleeve pipe is first half open-ended semi-cylindrical, the sheathed tube internal diameter of cylinder is the same with the external diameter of syringe cylinder, the sheathed tube internal diameter of cylinder is greater than the syringe needle is accomodate the internal diameter of pipe, the syringe needle is accomodate the pipe and is connected through the toper transition surface with the cylinder sleeve pipe, the sheathed tube bottom of cylinder is provided with first locating plane. The utility model discloses a although improve back cover needle cap success rate, reduce the incidence that the needle stick was hindered, but not design the structure of conveniently pulling out the needle.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims to provide a prevent syringe of acupuncture, the utility model discloses a structure to the needle cap improves, can reach simultaneously and prevent the acupuncture and conveniently pull out the purpose of syringe needle.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a syringe capable of preventing acupuncture comprises a push rod piston, a needle cylinder, a separated needle head and a needle cap used for covering the needle head, wherein the needle cylinder is connected with the push rod piston in a sliding mode, one end, far away from the push rod piston, of the needle cylinder is provided with a needle head connecting part, the needle head is detachably sleeved on the needle head connecting part through a needle head seat, the needle cap is in a cylindrical shape with an opening at the lower end and a closed upper end, a long side opening is formed in the side wall of the needle cap along the length direction of the needle cap, the size of the opening of the side opening is gradually reduced from the lower end to the upper end, the lower end of the side opening extends to the opening at the lower end of the needle cap, the opening width of the lower end of the side opening; a convex ring which is convex in the radial direction is arranged on the inner side wall of the lower end of the needle cap along the circumferential direction, and the inner diameter of the convex ring is smaller than the external dimension of the lower end of the needle head seat, so that the needle head seat can not fall out from the opening of the lower end of the needle cylinder; the inner side wall of the needle cap is provided with two raised blocking parts which are respectively positioned on different sides of the side opening, and the two blocking parts are arranged oppositely; the length of the needle cap is such that when the needle head is obliquely sleeved into the needle cap from the side opening, the needle head seat and the needle head are completely sleeved in the needle cap; the distance between the two blocking parts is smaller than the external dimension of the needle seat, so that the needle seat cannot be separated from the space between the two blocking parts and the side opening when the needle seat is not subjected to external force.
In the utility model, furthermore, the upper end of the side opening is positioned at the middle part of the needle cap.
The utility model discloses in, furtherly, needle cap and stop part are by having the preparation of elastic plastics material.
The utility model discloses in, furtherly, the circular cone frustum shape that the syringe needle seat is the little lower extreme of upper end is big, when syringe needle seat and syringe needle all by the complete cover in the needle cap and the bottom contact bulge loop of syringe needle seat, two distance between the barrier is less than the external diameter at the syringe needle seat place position that two barriers correspond.
The utility model discloses in, furtherly, syringe needle connecting portion are tube-shape circular cone frustum shape, and its maximum external diameter is less than the internal diameter of protruding circle.
The utility model discloses in, furtherly, the position that sets up of barrier satisfies when syringe needle seat and syringe needle all by the complete cover in the needle cap, and barrier is fixed the syringe needle seat to unable rocking.
In the utility model, furthermore, the side opening is V-shaped.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
1. the utility model discloses set up the side opening, during the syringe needle is set back with the syringe needle from the side opening and inserts the needle cap, because the side opening is bigger for traditional bottom open-ended open area, and when set back, the syringe needle is that the slant gets into down, rather than just to user's hand like traditional mode with the syringe needle, so greatly reduced the risk of stabbing hand.
2. The utility model discloses a set up protruding circle, the diameter of protruding circle is greater than the overall dimension of syringe needle seat lower extreme to block the lower extreme of syringe needle seat, when the syringe needle is pulled out to needs, only need hold the cylinder on the one hand, hold the needle cap on the other hand, pull open cylinder and needle cap in the opposite direction and conveniently part both. After separation, the treated needle is not easy to fall out because the needle is limited in the needle cap.
Drawings
Fig. 1 is a schematic structural diagram of a syringe for preventing needle stick according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a needle cap according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a needle cap provided by an embodiment of the present invention.
Wherein, 1-syringe; 2-a barrier; opening at the 3-side; 4-needle cap; 5-a needle head; 6-needle seat; 7-a needle connection; 8-a push rod piston; 9-convex ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, an anti-acupuncture syringe comprises a push rod piston 8, a syringe 1, a separable needle 5 and a needle cap 4 for covering the needle 5, the syringe is the same as a common syringe, the push rod piston 8 is connected inside the syringe 1 in a sliding manner and is used for exhausting air and sucking medicine, a needle connecting part 7 is arranged at one end of the syringe 1 far away from the push rod piston 8, the needle 5 is detachably sleeved on the needle connecting part 7 through a needle seat 6, and the needle 5 can be pulled out according to actual needs. The needle cap 4 is in a cylindrical shape with an open lower end and a closed upper end, and the shape can be cylindrical, square cylindrical or irregular cylindrical. The improvement of the utility model lies in that a long side opening 3 is arranged on the side wall of the needle cap 4 along the length direction of the needle cap 4, the opening size of the side opening 3 is gradually reduced from the lower end to the upper end, and the side opening 3 is preferably V-shaped, the shape is more beautiful and practical, the lower end of the side opening 3 extends to the opening of the lower end of the needle cap 4, the opening width of the lower end of the side opening 3 is larger than the width of the widest part of the needle head seat 6, and the needle head seat 6 can enter the needle cap 4 from the side opening 3; a convex ring 9 which is convex in the radial direction is arranged on the inner side wall of the lower end of the needle cap 4 along the circumferential direction, the inner diameter of the convex ring 9 is smaller than the external dimension of the lower end of the needle head seat 6, and the lower end of the needle head seat 6 is blocked, so that the needle head seat 6 cannot fall out from the opening of the lower end of the needle cylinder 1; the inner side wall of the needle cap 4 is provided with two convex blocking parts 2, the two blocking parts 2 are respectively positioned at different sides of the side opening 3, and the two blocking parts 2 are arranged oppositely; the length of the needle cap 4 is such that when the needle head 5 is obliquely sleeved into the needle cap 4 from the side opening 3, the needle head seat 6 and the needle head 5 are completely sleeved into the needle cap 4; the distance between the two stops 2 is smaller than the external dimension of the needle holder 6, so that the needle holder 6 cannot be pulled out from between the two stops 2 and the side opening 3 when no external force is applied.
The utility model discloses the upper end of preferred side opening 3 is located the middle part of needle cap 4, shelters from inside syringe needle 5 as far as possible. Because the syringe adopts aseptic package, the utility model discloses set up side opening 3 and do not seal syringe needle 5 totally, nevertheless as long as the sterilization measure before the packing is qualified, the aseptic package of conventional outside plastic bag can guarantee the utility model discloses a health satisfies the rule. The needle cap 4 and the blocking part 2 are both made of elastic plastic materials, so that when the needle head 5 and the needle head seat 6 enter the needle cap 4 from the outside, some external force is applied to deform the needle cap 4 and the blocking part 2, the resistance of the blocking part 2 can be broken through, and the needle head 5 is placed in the needle cap 4. The needle seat 6 is in a cone frustum shape with a small upper end and a large lower end, when the needle seat 6 and the needle 5 are completely sleeved in the needle cap 4 and the bottom end of the needle seat 6 contacts the convex ring 9, the distance between the two blocking parts 2 is smaller than the outer diameter of the part where the needle seat 6 corresponding to the two blocking parts 2 is located, and therefore the needle seat 6 can be limited and cannot be separated from the side opening 3. More preferably, the blocking part 2 is arranged at a position such that when the needle base 6 and the needle 5 are both completely sleeved in the needle cap 4, the blocking part 2 fixes the needle base 6 to be unable to shake, so that the internal structure is more stable. Preferably, the needle head connecting part 7 is in a shape of a cylindrical cone frustum, the maximum outer diameter of which is smaller than the inner diameter of the convex ring 9, so that the lower end of the needle cap 4 is conveniently clamped between the needle head seat 6 and the needle head connecting part 7.
The utility model discloses an instruction for use:
1. taking out the needle head during use: the needle cylinder 1 is held by one hand and close to the needle head connecting part 7, the needle cap 4 is held by the other hand, the side opening 3 is upward, the tail part of the needle cylinder 1 is tilted upward, external force is generated to enable the needle head seat 6 to be separated from the blocking part 2, and then the needle head 5 can be taken out from the side opening 3. During the taking-out process, the needle head 5 touches the inner wall of the needle cap 4 downwards, and is stressed temporarily, but the stress is small, so that the needle head 5 cannot be bent and deformed.
2. Sleeving the needle after use: the side opening 3 is upward by holding the needle cap 4 with one hand, the needle head 5 of the syringe with the needle head is obliquely downward with the other hand, and the needle head 5 is inserted into the needle cap 4 from the side opening 3, because the side opening 3 is larger than the traditional bottom opening, and when the syringe is sleeved back, the needle head 5 is obliquely downward instead of the traditional way that the needle head 5 is just opposite to the hand of a user, the risk of pricking the hand is greatly reduced. After the needle head 5 and the needle head seat 6 enter the needle cap 4 and the lower end of the needle head seat 6 is positioned right above the side opening 3, the lower end of the needle cap 4 is lifted up to overcome the resistance of the blocking part 2, and then the needle head 5 and the needle head seat 6 can be completely sleeved in the needle cap 4.
3. Removing the needle head: if the syringe is used for blood gas analysis or waste syringe treatment, the needle head needs to be pulled out, the use of the utility model discloses then very simple, namely hold syringe 1 on one hand, hold needle cap 4 on the other hand, owing to the effect of stopping of convex ring 9 to needle head seat 6, pull open syringe 1 and needle cap 4 to the opposite direction and conveniently part both. After separation, the treated needle 5 is also not easily dropped out because it is confined inside the needle cap 4.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a prevent syringe of acupuncture, includes push rod piston, cylinder, disconnect-type syringe needle and is used for covering the needle cap of syringe needle, the inside sliding connection of cylinder the push rod piston, the one end that the push rod piston was kept away from to the cylinder sets up syringe needle connecting portion, the syringe needle can be dismantled through the syringe needle seat and cup joint on the syringe needle connecting portion, the needle cap is lower extreme opening upper end confined tube-shape, its characterized in that: the side wall of the needle cap is provided with a long side opening along the length direction of the needle cap, the size of the side opening is gradually reduced from the lower end to the upper end, the lower end of the side opening extends to the opening at the lower end of the needle cap, the width of the opening at the lower end of the side opening is larger than that of the widest part of the needle head seat, and the needle head seat can enter the needle cap from the side opening; a convex ring which is convex in the radial direction is arranged on the inner side wall of the lower end of the needle cap along the circumferential direction, and the inner diameter of the convex ring is smaller than the external dimension of the lower end of the needle head seat, so that the needle head seat can not fall out from the opening of the lower end of the needle cylinder; the inner side wall of the needle cap is provided with two raised blocking parts which are respectively positioned on different sides of the side opening, and the two blocking parts are arranged oppositely; the length of the needle cap is such that when the needle head is obliquely sleeved into the needle cap from the side opening, the needle head seat and the needle head are completely sleeved in the needle cap; the distance between the two blocking parts is smaller than the external dimension of the needle seat, so that the needle seat cannot be separated from the space between the two blocking parts and the side opening when the needle seat is not subjected to external force.
2. The syringe of claim 1, wherein: the upper end of the side opening is positioned in the middle of the needle cap.
3. The syringe of claim 1, wherein: the needle cap and the blocking part are both made of elastic plastic materials.
4. The syringe of claim 1, wherein: the needle head seat is in a cone frustum shape with a small upper end and a large lower end, when the needle head seat and the needle head are completely sleeved in the needle cap and the bottom end of the needle head seat contacts the convex ring, the distance between the two blocking parts is smaller than the outer diameter of the part where the needle head seat corresponding to the two blocking parts is located.
5. The syringe of claim 1, wherein: the needle head connecting part is in a cylindrical cone frustum shape, and the maximum outer diameter of the needle head connecting part is smaller than the inner diameter of the convex ring.
6. The syringe of claim 1, wherein: the setting position of the blocking part meets the requirement that the needle head seat is fixed to be incapable of shaking by the blocking part when the needle head seat and the needle head are completely sleeved in the needle cap.
7. The syringe of claim 4, wherein: the side opening is V-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022714615.4U CN214232319U (en) | 2020-11-20 | 2020-11-20 | Prevent syringe of acupuncture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022714615.4U CN214232319U (en) | 2020-11-20 | 2020-11-20 | Prevent syringe of acupuncture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214232319U true CN214232319U (en) | 2021-09-21 |
Family
ID=77733832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022714615.4U Expired - Fee Related CN214232319U (en) | 2020-11-20 | 2020-11-20 | Prevent syringe of acupuncture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214232319U (en) |
-
2020
- 2020-11-20 CN CN202022714615.4U patent/CN214232319U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |