CN210494017U - Separation and reunion formula scope syringe needle - Google Patents
Separation and reunion formula scope syringe needle Download PDFInfo
- Publication number
- CN210494017U CN210494017U CN201920348916.4U CN201920348916U CN210494017U CN 210494017 U CN210494017 U CN 210494017U CN 201920348916 U CN201920348916 U CN 201920348916U CN 210494017 U CN210494017 U CN 210494017U
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- rod
- connecting rod
- sleeve
- head
- inner rod
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Abstract
The utility model belongs to the technical field of medical instrument, concretely relates to separation and reunion formula scope syringe needle, including syringe needle, outer tube, inner tube, outer pole, interior pole, connecting rod and sleeve pipe, interior pole includes inner rod fender portion, and a set of wedge-shaped lug is established to the ring on the outer wall of inner rod fender portion. The utility model has the advantages of simple structure and reasonable design, easy dismounting has set up the shape lug on interior pole, and after the scope syringe needle goes out the needle, interior pole and connecting rod interference fit made interior pole auto-lock, and the pole in accessible pull back after accomplishing injection work makes interior pole break away from the auto-lock state, and clinical convenient operation feels comfortable and accords with the human engineering principle.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to separation and reunion formula scope syringe needle.
Background
Endoscopic injection needles are commonly used medical devices that are used in conjunction with endoscopes for submucosal injection of the digestive tract. An endoscopic injection needle generally comprises a needle head, an outer tube, an inner tube, an outer rod, an inner rod and a sleeve. The existing endoscopic injection needle has no self-locking device after being withdrawn, and needs to be fixed by a doctor or a nurse during clinical use, so that the operation is inconvenient.
SUMMERY OF THE UTILITY MODEL
In order to make up the deficiency of the prior art, the utility model provides a technical scheme of separation and reunion formula scope syringe needle.
The clutch type endoscopic injection needle is characterized by comprising a needle head, an outer tube, an inner tube, an outer rod, an inner rod, a connecting rod and a sleeve,
the inner rod comprises an inner rod handle part, an inner rod stop part, an inner rod sliding part, an inner rod groove withdrawing part and an inner rod head which are fixedly connected in sequence, the inner rod is provided with an inner rod through hole which penetrates through the inner rod handle part, the inner rod stop part, the inner rod sliding part, the inner rod groove withdrawing part and the inner rod head, the diameter of the inner rod stop part is larger than that of the inner rod handle part and the inner rod sliding part, and a group of wedge-shaped convex blocks are arranged on the outer wall of the inner rod stop part;
the connecting rod comprises a connecting rod head and a connecting rod tube part which are fixedly connected, a connecting rod through hole penetrating through the connecting rod head and the connecting rod tube part is formed in the connecting rod, the outer diameter of the connecting rod tube part is larger than that of the connecting rod head, the connecting rod is sleeved on the inner rod sliding part in a sliding mode, a connecting rod tube part counter bore communicated with the connecting rod through hole is formed in the connecting rod tube part, and when the inner rod blocking platform part is embedded into the connecting rod tube part counter bore, the wedge-shaped convex block is in interference fit;
the outer rod comprises an outer rod body and an outer rod head which are fixedly connected, the outer rod is provided with an outer rod through hole which penetrates through the outer rod body and the outer rod head, and the tail part of the outer rod body is sleeved and clamped on the head part of the connecting rod;
the sleeve comprises a sleeve connecting part and a sleeve supporting part which are fixedly connected, the sleeve is provided with a sleeve through hole which penetrates through the sleeve connecting part and the sleeve supporting part, and the sleeve connecting part is sleeved and clamped on the head part of the outer rod;
one end of the outer pipe is fixedly inserted in the through hole of the outer rod, and the other end of the outer pipe penetrates out of the sleeve;
one end of the inner pipe is fixedly inserted into the through hole of the inner rod, and the other end of the inner pipe penetrates into the outer pipe;
the needle head is fixedly connected with one end of the inner tube, which is far away from the inner rod, and is exposed out of the outer tube.
The clutch type endoscopic injection needle is characterized in that the wedge-shaped clamping blocks are eight.
The clutch type endoscopic injection needle is characterized in that the wedge-shaped fixture block is of an elastic structure.
The clutch type endoscopic injection needle is characterized in that the outer wall of the head of the connecting rod is fixedly connected with a connecting rod clamping block, and the tail of the outer rod through hole is provided with an outer rod clamping groove clamped with the connecting rod clamping block.
The clutch type endoscopic injection needle is characterized in that the connecting rod clamping block and the outer rod clamping groove are both of annular structures.
The clutch type endoscopic injection needle is characterized in that the outer wall of the head part of the outer rod is fixedly connected with an outer rod clamping block, and a sleeve clamping groove clamped with the outer rod clamping block is formed in the sleeve through hole and the part of the inner wall of the sleeve supporting part.
The clutch type endoscopic injection needle is characterized in that the outer rod clamping block and the sleeve clamping groove are both of annular structures.
The utility model has the advantages of simple structure and reasonable design, easy dismounting has set up the shape lug on interior pole, and after the scope syringe needle goes out the needle, interior pole and connecting rod interference fit made interior pole auto-lock, and the pole in accessible pull back after accomplishing injection work makes interior pole break away from the auto-lock state, and clinical convenient operation feels comfortable and accords with the human engineering principle.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view of FIG. 1 at B;
fig. 4 is a schematic view of the cross-sectional structure of the inner rod of the present invention;
fig. 5 is a schematic sectional view of the outer rod of the present invention;
fig. 6 is a schematic structural diagram of a section of a sleeve according to the present invention;
fig. 7 is a schematic view of a cross-sectional structure of a connecting rod according to the present invention.
In the figure: 1 needle head, 2 outer tubes, 3 inner tubes, 4 outer rod bodies, 400 outer rod heads, 4000 outer rod fixture blocks, 401 outer rod clamping grooves, 5 inner rods, 500 inner rod handle parts, 501 inner rod baffle parts, 5010 wedge-shaped convex blocks, 502 inner rod sliding parts, 503 inner rod receding parts, 504 inner rod heads, 6 sleeves, 600 sleeve connecting parts, 601 sleeve supporting parts, 6010 sleeve clamping grooves, 7 connecting rods, 700 connecting rod heads, 7000 connecting rod fixture blocks, 701 connecting rod pipe parts and 7010 connecting rod pipe part counter bores.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-7, a clutch type endoscopic injection needle comprises a needle head 1, an outer tube 2, an inner tube 3, an outer rod, an inner rod 5, a sleeve 6 and a connecting rod 7.
The inner rod 5 comprises an inner rod handle part 500, an inner rod blocking platform part 501, an inner rod sliding part 502, an inner rod retreating groove part 503 and an inner rod head part 504 which are fixedly connected in sequence, the inner rod 5 is provided with an inner rod through hole penetrating through the inner rod handle part 500, the inner rod blocking platform part 501, the inner rod sliding part 502, the inner rod retreating groove part 503 and the inner rod head part 504, the diameter of the inner rod blocking platform part 501 is larger than that of the inner rod handle part 500 and the inner rod sliding part 502, eight wedge-shaped protruding blocks 5010 are annularly arranged on the outer wall of the inner rod blocking platform part 501, and the wedge-shaped.
Connecting rod 7 includes fixed connection's connecting rod head 700 and connecting rod pipe portion 701, set up the connecting rod through-hole that runs through connecting rod head 700 and connecting rod pipe portion 701 on the connecting rod 7, the external diameter of connecting rod pipe portion 701 is greater than the external diameter of connecting rod head 700, the slidable cover of connecting rod is established on interior pole sliding part 502, set up in connecting rod pipe portion 701 with the connecting rod pipe portion counter bore 7010 of connecting rod through-hole intercommunication, when interior pole fender portion 501 imbeds connecting rod pipe portion counter bore 7010, cheAN _ SNed lug 5010 and connecting rod pipe portion counter bore 7010 interference fit.
The outer rod comprises an outer rod body 4 and an outer rod head 400 which are fixedly connected, the outer rod 4 is provided with an outer rod through hole penetrating through the outer rod body 4 and the outer rod head 400, and the tail part of the outer rod body 4 is sleeved and clamped on the connecting rod head 700;
the sleeve 6 includes a fixedly connected sleeve connection portion 600 and a sleeve support portion 601, the sleeve 6 has a sleeve through hole penetrating the sleeve connection portion 600 and the sleeve support portion 601, and the sleeve connection portion 600 is fitted over the outer rod head portion 400.
One end of the outer pipe 2 is fixedly inserted in the through hole of the outer rod, and the other end penetrates out of the sleeve 6.
One end of the inner tube 3 is fixedly inserted in the through hole of the inner rod, and the other end penetrates into the outer tube 2.
The needle 1 is fixedly attached to the end of the inner tube 3 remote from the inner rod 5 and emerges from the outer tube 2.
Connection structure of connecting rod 7 and outer pole: fixed connection connecting rod fixture block 7000 on the outer wall of connecting rod head 700, the afterbody of outer pole through-hole is seted up with outer pole draw-in groove 401 of connecting rod fixture block 7000 joint, and connecting rod fixture block 7000 and outer pole draw-in groove 401 are the loop configuration.
Connection structure of outer pole and sleeve 6: an outer rod clamping block 4000 is fixedly connected to the outer wall of the head of the outer rod, a sleeve clamping groove 6010 clamped with the outer rod clamping block 4000 is formed in the sleeve through hole and the part of the inner wall of the sleeve supporting portion 601, and the outer rod clamping block 4000 and the sleeve clamping groove 6010 are both of annular structures.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A clutch type endoscopic injection needle is characterized by comprising a needle head, an outer tube, an inner tube, an outer rod, an inner rod, a connecting rod and a sleeve,
the inner rod comprises an inner rod handle part, an inner rod stop part, an inner rod sliding part, an inner rod groove withdrawing part and an inner rod head which are fixedly connected in sequence, the inner rod is provided with an inner rod through hole which penetrates through the inner rod handle part, the inner rod stop part, the inner rod sliding part, the inner rod groove withdrawing part and the inner rod head, the diameter of the inner rod stop part is larger than that of the inner rod handle part and the inner rod sliding part, and a group of wedge-shaped convex blocks are arranged on the outer wall of the inner rod stop part;
the connecting rod comprises a connecting rod head and a connecting rod tube part which are fixedly connected, a connecting rod through hole penetrating through the connecting rod head and the connecting rod tube part is formed in the connecting rod, the outer diameter of the connecting rod tube part is larger than that of the connecting rod head, the connecting rod is sleeved on the inner rod sliding part in a sliding mode, a connecting rod tube part counter bore communicated with the connecting rod through hole is formed in the connecting rod tube part, and when the inner rod blocking platform part is embedded into the connecting rod tube part counter bore, the wedge-shaped convex block is in interference fit;
the outer rod comprises an outer rod body and an outer rod head which are fixedly connected, the outer rod is provided with an outer rod through hole which penetrates through the outer rod body and the outer rod head, and the tail part of the outer rod body is sleeved and clamped on the head part of the connecting rod;
the sleeve comprises a sleeve connecting part and a sleeve supporting part which are fixedly connected, the sleeve is provided with a sleeve through hole which penetrates through the sleeve connecting part and the sleeve supporting part, and the sleeve connecting part is sleeved and clamped on the head part of the outer rod;
one end of the outer pipe is fixedly inserted in the through hole of the outer rod, and the other end of the outer pipe penetrates out of the sleeve;
one end of the inner pipe is fixedly inserted into the through hole of the inner rod, and the other end of the inner pipe penetrates into the outer pipe;
the needle head is fixedly connected with one end of the inner tube, which is far away from the inner rod, and is exposed out of the outer tube.
2. The clutch-type endoscopic injection needle as claimed in claim 1, wherein said wedge-shaped fixture block has eight pieces.
3. The clutch type endoscopic injection needle according to claim 1, wherein the wedge-shaped fixture block is of an elastic structure.
4. The clutch type endoscopic injection needle according to claim 1, wherein the outer wall of the head of the connecting rod is fixedly connected with a clamping block of the connecting rod, and the tail of the through hole of the outer rod is provided with an outer rod clamping groove clamped with the clamping block of the connecting rod.
5. The clutch type endoscopic injection needle according to claim 1, wherein the connecting rod fixture block and the outer rod clamping groove are both ring structures.
6. The clutch type endoscopic injection needle according to claim 1, wherein the outer wall of the outer rod head is fixedly connected with an outer rod fixture block, and the sleeve through hole and the part of the inner wall of the sleeve supporting part are provided with sleeve clamping grooves clamped with the outer rod fixture block.
7. The clutch-type endoscopic injection needle according to claim 6, wherein the outer rod fixture block and the sleeve clamp groove are both ring-shaped structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348916.4U CN210494017U (en) | 2019-03-19 | 2019-03-19 | Separation and reunion formula scope syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348916.4U CN210494017U (en) | 2019-03-19 | 2019-03-19 | Separation and reunion formula scope syringe needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210494017U true CN210494017U (en) | 2020-05-12 |
Family
ID=70543258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920348916.4U Active CN210494017U (en) | 2019-03-19 | 2019-03-19 | Separation and reunion formula scope syringe needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210494017U (en) |
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2019
- 2019-03-19 CN CN201920348916.4U patent/CN210494017U/en active Active
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