CN204445959U - A kind of biopsy needle - Google Patents

A kind of biopsy needle Download PDF

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Publication number
CN204445959U
CN204445959U CN201520087570.9U CN201520087570U CN204445959U CN 204445959 U CN204445959 U CN 204445959U CN 201520087570 U CN201520087570 U CN 201520087570U CN 204445959 U CN204445959 U CN 204445959U
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CN
China
Prior art keywords
needle
biopsy
point
inwall
handle
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
Application number
CN201520087570.9U
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Chinese (zh)
Inventor
王玉许
Original Assignee
王玉许
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Priority to CN201520087570.9U priority Critical patent/CN204445959U/en
Application granted granted Critical
Publication of CN204445959U publication Critical patent/CN204445959U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

This utility model provides a kind of biopsy needle, comprise the needle handle being provided with syringe connecting hole, the needle body be connected with needle handle, the other end of needle body has needle point, it is characterized in that: the inwall of described needle point is provided with the convex projection to inner chamber, the inwall of described protruding ring cast-over point, described projection has the needle point face towards needle point direction and the needle handle face towards needle handle direction, and the angle of described needle handle face and needle body inwall is 60 ° to 120 °.This utility model one-time puncture sampling amount is comparatively large, biopsy efficiency is high, can prevent from sampling tissue loss; Paracentesis depth is clear and definite, safe and reliable; Structure is simple, easy to use.

Description

A kind of biopsy needle
Technical field
This utility model relates to a kind of medical apparatus and instruments, specifically, relates to a kind of biopsy needle.
Background technology
When the occupying lesions such as tumor, cyst, enclosed mass are diagnosed, except the imaging examination such as CT, magnetic resonance, B ultrasonic of routine, sometimes need to carry out biopsy sampling to pathological tissues, by doing cytodiagnosis to pathological tissues, make last diagnostic.Biopsy method common at present comprises open surgical biopsy, aspiration biopsy two kinds.Wherein, open surgical biopsy is in the conventional method of the shallow site morbidity of table, the method for usually taking aspiration biopsy deep to diseased region.Now common aspiration biopsy adopts ordinary syringe syringe needle directly to thrust diseased region, carries out aspirate tissue cell sampling.But ordinary syringe syringe needle internal diameter is less, the problem easily occur the tissue loss under being cut by needle point when extracting pathological tissues, cannot taking out, repeated multiple times puncture is needed to sample, hemorrhage medical-risk is caused greatly to increase, not only inefficiency, and the misery adding patient.
Utility model content
The purpose of this utility model is the weak point overcoming conventional syringe aspiration biopsy, provides that a kind of biopsy efficiency is high, puncture time is few, prevents from sampling a kind of biopsy needle of tissue loss.
The purpose of this utility model is reached by following technical measures:
A kind of biopsy needle, comprise the needle handle being provided with syringe connecting hole, the needle body be connected with needle handle, the other end of needle body has needle point, it is characterized in that: the inwall of described needle point is provided with the convex projection to inner chamber, the inwall of described protruding ring cast-over point, described projection has the needle point face towards needle point direction and the needle handle face towards needle handle direction, and the angle of described needle handle face and needle body inwall is 60 ° to 120 °.The angle of needle point face and needle body inwall, close to right angle, can stop the sample tissue entering needle body to greatest extent, prevent it from deviating from needle body, compared to the inwall of traditional round tubular, the application can improve sampling success rate greatly, thus reduces sampling number of times, alleviates the damage to patient's body.
Say further, the interior needle tip without leave of described needle body increases gradually to needle handle portion.The tissue samples that the internal diameter increased gradually makes biopsy needle take off is not easy to come off more, ensures that tissue samples can be taken out of external through biopsy needle.
Say further, the outer wall of described needle body is provided with length scale.
In use, space occupying lesion position and the degree of depth can be located with B ultrasonic, operator's hand-held biopsy needle punctures, accurately paracentesis depth is controlled with the length scale on needle body outer wall, after arriving diseased region, and aspirate with appropriate dynamics, the tissue of diseased region can be inhaled into biopsy hole, then extract biopsy needle out, the portion of tissue sucking biopsy hole is proposed.Only need one-time puncture, just can obtain the biopsy of sufficient amount.
Owing to have employed technique scheme, compared with prior art, the utility model has the advantages that:
(1) one-time puncture sampling amount is comparatively large, biopsy efficiency is high, can prevent from sampling tissue loss;
(2) paracentesis depth is clear and definite, safe and reliable;
(3) structure is simple, easy to use.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing 1 is the sectional view of a kind of biopsy needle embodiment 1 of this utility model;
Accompanying drawing 2 is structural representations of a kind of biopsy needle embodiment 1 of this utility model;
Accompanying drawing 3 is sectional views of a kind of biopsy needle embodiment 2 of this utility model;
Accompanying drawing 4 is structural representations of a kind of biopsy needle embodiment 2 of this utility model.
Detailed description of the invention
Embodiment 1: as shown in Figures 1 and 2, a kind of biopsy needle, comprise the needle handle 2 being provided with syringe connecting hole 1, the needle body 3 be connected with needle handle 2, the outer wall of described needle body 3 is provided with length scale 6, and the other end of needle body 3 has needle point 5, the inwall of described needle point 5 is provided with the convex projection 4 to inner chamber, described protruding 4 around the inwall of needle point 5, and described protruding 4 have the needle point face towards needle point 5 direction and the needle handle face towards needle handle direction, and the angle of described needle handle face and needle body inwall is 60 ° to 120 °.The angle of needle point face and needle body inwall, close to right angle, can stop the sample tissue entering needle body to greatest extent, prevent it from deviating from needle body, compared to the inwall of traditional round tubular, the application can improve sampling success rate greatly, thus reduces sampling number of times, alleviates the damage to patient's body.
Embodiment 2: as shown in accompanying drawing 3 and accompanying drawing 4, a kind of biopsy needle, comprise the needle handle 2 being provided with syringe connecting hole 1, the needle body 3 be connected with needle handle 2, the outer wall of described needle body 3 is provided with length scale 6, and the other end of needle body 3 has needle point 5, the inwall of described needle point 5 is provided with the convex projection 4 to inner chamber, described protruding 4 around the inwall of needle point 5, and described protruding 4 have the needle point face towards needle point 5 direction and the needle handle face towards needle handle direction, and the angle of described needle handle face and needle body inwall is 60 ° to 120 °.The angle of needle point face and needle body inwall, close to right angle, can stop the sample tissue entering needle body to greatest extent, prevent it from deviating from needle body, compared to the inwall of traditional round tubular, the application can improve sampling success rate greatly, thus reduces sampling number of times, alleviates the damage to patient's body.
In the present embodiment, the interior needle tip without leave of described needle body 3 increases gradually to needle handle portion.The tissue samples that the internal diameter increased gradually makes biopsy needle take off is not easy to come off, and ensures that tissue samples can be taken out of external through biopsy needle.

Claims (3)

1. a biopsy needle, comprise the needle handle being provided with syringe connecting hole, the needle body be connected with needle handle, the other end of needle body has needle point, it is characterized in that: the inwall of described needle point is provided with the convex projection to inner chamber, the inwall of described protruding ring cast-over point, described projection has the needle point face towards needle point direction and the needle handle face towards needle handle direction, and the angle of described needle handle face and needle body inwall is 60 ° to 120 °.
2. a kind of biopsy needle according to claim 1, is characterized in that: the interior needle tip without leave of described needle body increases gradually to needle handle portion.
3. a kind of biopsy needle according to claim 1, is characterized in that: the outer wall of described needle body is provided with length scale.
CN201520087570.9U 2015-01-29 2015-01-29 A kind of biopsy needle Expired - Fee Related CN204445959U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520087570.9U CN204445959U (en) 2015-01-29 2015-01-29 A kind of biopsy needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520087570.9U CN204445959U (en) 2015-01-29 2015-01-29 A kind of biopsy needle

Publications (1)

Publication Number Publication Date
CN204445959U true CN204445959U (en) 2015-07-08

Family

ID=53652915

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520087570.9U Expired - Fee Related CN204445959U (en) 2015-01-29 2015-01-29 A kind of biopsy needle

Country Status (1)

Country Link
CN (1) CN204445959U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150708

Termination date: 20160129

EXPY Termination of patent right or utility model