CN210990631U - Self-tapping puncture needle for vertebroplasty - Google Patents
Self-tapping puncture needle for vertebroplasty Download PDFInfo
- Publication number
- CN210990631U CN210990631U CN201921797317.7U CN201921797317U CN210990631U CN 210990631 U CN210990631 U CN 210990631U CN 201921797317 U CN201921797317 U CN 201921797317U CN 210990631 U CN210990631 U CN 210990631U
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- China
- Prior art keywords
- needle
- annular
- pressing plate
- needle tube
- tapping
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- 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.)
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Abstract
A self-tapping puncture needle for vertebroplasty comprises a needle cylinder, a needle tube, a needle head, a handle, a pressing plate and a limiting piece; the handle is arranged on the periphery of the needle cylinder; the needle head is integrally arranged at one end of the needle cylinder; a cavity for the needle tube to pass through is arranged in the needle cylinder and the needle head; the limiting piece is cylindrical, is arranged on the inner wall of the needle cylinder and is positioned at one end of the needle cylinder facing the pressing plate; a plurality of annular bulges are arranged on the inner wall of the limiting part at equal intervals; one end of the needle tube passes through the cavity and is positioned at the outer side of the needle head; the other end of the needle tube penetrates through the cavity and is positioned on the outer side of the needle tube, and the needle tube is connected with and penetrates through the pressing plate; annular baffles are uniformly distributed on the periphery of the needle tube; the end of the annular baffle is positioned between two adjacent groups of annular bulges. The utility model discloses in, the doctor of being convenient for finely tunes the working angle of needle tubing in the operation, guarantees going on smoothly of operation, guarantees the disappearance deviation. The needle tube can not generate larger deviation, thereby avoiding the occurrence of operation accidents and ensuring the smooth operation.
Description
Technical Field
The utility model relates to a pjncture needle field especially relates to a self tapping pjncture needle for vertebroplasty.
Background
Puncture is a diagnosis and treatment technique in which a puncture needle is inserted into a body cavity to extract secretions for assay, gas or a contrast agent is injected into the body cavity to perform contrast examination, or medicines are injected into the body cavity. Aims at blood drawing, blood transfusion, fluid infusion and angiography in pipe.
In the puncturing process, the patient can not endure pain, and can move or shake to cause puncturing failure, so that the puncturing risk needs to be performed again; particularly, when a child punctures, the child is likely to move, and the possibility of the puncture failure is increased. Once failed, the puncture is required again, which will certainly increase the pain of the patient.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a self tapping pjncture needle for vertebroplasty, the doctor of being convenient for finely tunes the working angle of needle tubing in the operation, guarantees going on smoothly of operation, guarantees the deviation not to appear. The needle tube can not generate larger deviation, thereby avoiding the occurrence of operation accidents and ensuring the smooth operation.
(II) technical scheme
The utility model provides a self-tapping puncture needle for vertebroplasty, which comprises a needle cylinder, a needle tube, a needle head, a handle, a pressing plate and a limiting part;
the handle is arranged on the periphery of the needle cylinder, and is provided with a through hole for fingers to pass through;
the needle head is integrally arranged at one end of the needle cylinder; a cavity for the needle tube to pass through is arranged in the needle cylinder and the needle head;
the limiting piece is cylindrical, is arranged on the inner wall of the needle cylinder and is positioned at one end of the needle cylinder facing the pressing plate; a plurality of annular bulges are arranged on the inner wall of the limiting part at equal intervals, and the end parts of the annular bulges are hemispherical;
one end of the needle tube passes through the cavity and is positioned at the outer side of the needle head; the other end of the needle tube penetrates through the cavity and is positioned on the outer side of the needle tube, and the needle tube is connected with and penetrates through the pressing plate; annular baffles are uniformly distributed on the periphery of one end of the needle tube facing the pressing plate; the end part of the annular baffle is hemispherical, and the end part of the annular baffle is positioned between two adjacent groups of annular bulges so as to form a fiber mechanism; wherein, the annular baffle is a flexible or elastic piece; the distance between adjacent ring baffles is less than the length of the limiting piece.
Preferably, the device also comprises a spring and a connecting ring; one end of the spring is arranged at one end of the needle cylinder facing the pressing plate, and the other end of the spring is arranged on the connecting ring; the connecting ring is arranged on the end surface of the pressing plate in an adhering manner; the initial state of the spring is a stretching state; the maximum tension A of the pressing plate under the stretching state of the spring is smaller than the acting force B of the annular baffle plate which is subjected to bending deformation.
Preferably, the spacing between adjacent annular projections is 2-3 mm.
Preferably, the annular baffle is an elastic rubber ring.
Preferably, at least three annular protrusions are arranged between adjacent annular baffles.
Preferably, the inner periphery of the through hole of the handle is provided with an elastic layer.
The above technical scheme of the utility model has following profitable technological effect:
the fingers penetrate through the through holes of the handle, the pressing plate is pushed by the palm, and the pressing plate drives the needle tube to move so as to complete the puncture process; in the work process, annular baffles are uniformly distributed on the periphery of one end, facing the pressing plate, of the needle tube, and in the moving process of the needle tube, the annular baffles are blocked by the annular bulges, so that the annular baffles are bent and deformed by the force of a palm, and then the needle tube can continue to move; when the palm is loosened, the annular baffle and the annular bulge form a limiting mechanism, so that the needle tube cannot deviate greatly; wherein, equidistant setting between the annular protrusion, the doctor of being convenient for finely tunes the working angle of needle tubing in the operation, guarantees going on smoothly of operation, guarantees not to appear the deviation. In the puncture process, if the patient moves, the doctor can loosen the hand in time, the annular baffle and the annular bulge form a limiting mechanism, the needle tube is guaranteed not to move, surgical accidents and accidents are avoided, and the smooth operation is guaranteed.
Drawings
Fig. 1 is a schematic structural view of a self-tapping puncture needle for vertebroplasty according to the present invention.
Fig. 2 is an enlarged view of a portion of the structure of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-2, the self-tapping puncture needle for vertebroplasty of the present invention comprises a needle cylinder 1, a needle tube 2, a needle head 3, a handle 4, a pressing plate 7 and a limiting member 8;
the handle 4 is arranged on the periphery of the needle cylinder 1, and a through hole for fingers to pass through is arranged on the handle 4;
the needle head 3 is integrally arranged at one end of the needle cylinder 1; a cavity for the needle tube 2 to pass through is arranged in the needle cylinder 1 and the needle head 3;
the limiting piece 8 is cylindrical, and the limiting piece 8 is arranged on the inner wall of the needle cylinder 1 and is positioned at one end, facing the pressing plate 7, of the needle cylinder 1; a plurality of annular bulges 9 are arranged on the inner wall of the limiting part 8 at equal intervals, and the end parts of the annular bulges 9 are hemispherical;
one end of the needle tube 2 passes through the cavity and is positioned outside the needle head 3; the other end of the needle tube 2 passes through the cavity and is positioned on the outer side of the needle tube 2, and the needle tube 2 is connected with and passes through the pressing plate 7; annular baffles 21 are uniformly distributed on the periphery of one end of the needle tube 2 facing the pressing plate 7; the end part of the annular baffle plate 21 is hemispherical, and the end part of the annular baffle plate 21 is positioned between two adjacent groups of annular bulges 9 to form a fiber mechanism; wherein, the annular baffle 21 is a flexible or elastic member; the distance between adjacent ring baffles 21 is less than the length of the limiting member 8.
In an alternative embodiment, a spring 5 and a connection ring 6 are also included;
one end of the spring 5 is arranged at one end of the needle cylinder 1 facing the pressing plate 7, and the other end of the spring 5 is arranged on the connecting ring 6; the connecting ring 6 is adhered to the end surface of the pressing plate 7; the initial state of the spring 5 is a stretching state; the maximum pulling force A of the spring 5 on the pressing plate 7 in the stretched state is smaller than the acting force B of the annular baffle 21 which is subjected to bending deformation.
In the utility model, fingers pass through the through holes of the handle 4, the pressing plate 7 is pushed by the palm, and the pressing plate 7 drives the needle tube 2 to move so as to complete the puncture process; in the work, the annular baffles 21 are uniformly distributed on the periphery of one end, facing the pressing plate 7, of the needle tube 2, in the moving process of the needle tube 2, the annular baffles 21 are blocked by the annular bulges 9, the annular baffles 21 are bent to deform by force of a palm, and then the needle tube 2 can continue to move; when the palm is loosened, the annular baffle plate 21 and the annular bulge 9 form a limiting mechanism, so that the needle tube 2 cannot be greatly deviated; wherein, equidistant setting between annular bulge 9, the doctor of being convenient for finely tunes the working angle of needle tubing 2 in the operation, guarantees going on smoothly of operation, guarantees not to appear the deviation. In the puncture process, if the patient moves, the doctor can loosen the hand in time, the annular baffle plate 21 and the annular bulge 9 form a limiting mechanism, the needle tube 2 is guaranteed not to move, operation accidents and accidents are avoided, and the smooth operation is guaranteed.
In an alternative embodiment, the spacing between adjacent annular protrusions 9 is 2-3mm, which facilitates fine adjustment of the needle cannula 2 by the practitioner while avoiding large excursions of the needle cannula 2.
In an alternative embodiment, the annular baffle 21 is an elastic rubber ring, which has good rubber elasticity, is not easy to damage and has good use effect.
In an alternative embodiment, at least three annular protrusions 9 are arranged between adjacent annular baffles 21, so that the use effect is good.
In an alternative embodiment, the handle 4 is provided with an elastic layer on the inner circumference of the through hole, which is more comfortable to use.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (6)
1. A self-tapping puncture needle for vertebroplasty is characterized by comprising a needle cylinder (1), a needle tube (2), a needle head (3), a handle (4), a pressing plate (7) and a limiting piece (8);
the handle (4) is arranged on the periphery of the syringe (1), and the handle (4) is provided with a through hole for fingers to pass through;
the needle head (3) is integrally arranged at one end of the needle cylinder (1); a cavity for the needle tube (2) to pass through is arranged in the needle cylinder (1) and the needle head (3);
the limiting piece (8) is cylindrical, and the limiting piece (8) is arranged on the inner wall of the needle cylinder (1) and is positioned at one end, facing the pressing plate (7), of the needle cylinder (1); a plurality of annular bulges (9) are arranged on the inner wall of the limiting part (8) at equal intervals, and the end parts of the annular bulges (9) are hemispherical;
one end of the needle tube (2) passes through the cavity and is positioned outside the needle head (3); the other end of the needle tube (2) penetrates through the cavity and is positioned on the outer side of the needle tube (2), and the needle tube (2) is connected with and penetrates through the pressing plate (7); annular baffles (21) are uniformly distributed on the periphery of one end of the needle tube (2) facing the pressing plate (7); the end part of the annular baffle (21) is hemispherical, and the end part of the annular baffle (21) is positioned between two adjacent groups of annular bulges (9) to form a fiber mechanism; wherein the annular baffle (21) is a flexible or elastic piece; the distance between adjacent ring baffles (21) is less than the length of the limiting piece (8).
2. A self-tapping puncture needle for vertebroplasty according to claim 1, further comprising a spring (5) and a connection ring (6);
one end of the spring (5) is arranged at one end of the needle cylinder (1) facing the pressing plate (7), and the other end of the spring (5) is arranged on the connecting ring (6); the connecting ring (6) is adhered to the end surface of the pressing plate (7); the initial state of the spring (5) is a stretching state; the maximum tension A of the spring (5) on the pressing plate (7) in the stretching state is smaller than the acting force B of the annular baffle (21) which is subjected to bending deformation.
3. Self-tapping puncture needle for vertebroplasty according to claim 1, wherein the distance between adjacent annular protrusions (9) is 2-3 mm.
4. Self-tapping puncture needle for vertebroplasty according to claim 1, wherein the annular barrier (21) is an elastic rubber ring.
5. Self-tapping puncture needle for vertebroplasty according to claim 1, wherein at least three annular protrusions (9) are included between adjacent annular baffles (21).
6. Self-tapping puncture needle for vertebroplasty according to claim 1, wherein an elastic layer is provided on the inner periphery of the through hole of the handle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921797317.7U CN210990631U (en) | 2019-10-24 | 2019-10-24 | Self-tapping puncture needle for vertebroplasty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921797317.7U CN210990631U (en) | 2019-10-24 | 2019-10-24 | Self-tapping puncture needle for vertebroplasty |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210990631U true CN210990631U (en) | 2020-07-14 |
Family
ID=71495959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921797317.7U Expired - Fee Related CN210990631U (en) | 2019-10-24 | 2019-10-24 | Self-tapping puncture needle for vertebroplasty |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210990631U (en) |
-
2019
- 2019-10-24 CN CN201921797317.7U patent/CN210990631U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 Termination date: 20211024 |