CN2119201U

CN2119201U - Testicle biopsy needle

Info

Publication number: CN2119201U
Application number: CN 92207044
Authority: CN
Inventors: 梁季鸿; 李兆才; 潘定杰
Original assignee: Guangxi Medical Instrument Research Laboratory Factory
Current assignee: Guangxi Medical Instrument Research Laboratory Factory
Priority date: 1992-04-11
Filing date: 1992-04-11
Publication date: 1992-10-21

Abstract

The utility model belongs to a medical device, particularly a testicle biopsy needle which is used for the biopsy of testicle, which is composed of an outer sleeve needle AAn a solid needle B and a biopsy needle core C, wherein, screw thread is arranged on a needle pipe on the tail of the outer sleeve needle A; the outer sleeve needle A is provided with a screw depth limited device 1 which can regulate the depth of inserting needle. The utility model is characterized in that the depth of inserting needle can be regulated, being capable of effectively preventing testis epidermis fragments and unclean objects brought into testis tissues. The biopsy needle has the advantages of high needle insertion speed, safety, rapid biopsy tissue cutting and fetching whose success ratio is as high as 100%; after operation, the testis can not bring on infection or hematoma.

Description

Testicle biopsy needle

This utility model belongs to a kind of medical apparatus and instruments, particularly belongs to a kind of testis biopsy pin that testis biopsy is used of doing.

At present, making the comparatively advanced biopsy needle that testis biopsy uses in clinical spermology is the Cheng Shi pin.This pin belongs to a kind of sleeve needle, it be utilize negative pressure to aspirate biopsy into from the side opening of pin the biopsy needle in-core comes the incisional biopsy tissue by rotation biopsy nook closing member then, though the success rate of Cheng Shi pin incisional biopsy tissue is than higher, but this pin was brought into outer casing needle in the testis then by biopsy nook closing member incisional biopsy tissue with hollow needle puncture before this, because hollow needle is longer than outer casing needle and syringe needle outer casing needle is again flat, just be formed with a step on its needle tubing of two needle guards dress back, make puncture very not smooth, take to and cause the potential source of infection in the testis tissue so be easy to a testis epidermis and unclean thing.It is that the limit that is not provided with adjustable depth of needle is installed deeply that the Cheng Shi pin also has a weak point, causes inserting needle to cross deeply even penetrate in the clinical manipulation process easily, and therefore damage is big, has increased misery to the patient.

The purpose of this utility model provides a kind of scalable depth of needle, inserting needle speed is fast, and the incisional biopsy tissue rapidly, safety and its one-tenth rate of cutting causes that testis infects or the testis biopsy pin of hematoma after up to 100%, in the time of can preventing inserting needle effectively testis epidermis fragment and unclean thing being brought into and causing operation in the testis tissue.

This utility model is to be made of outer casing needle A, solid needle B, biopsy nook closing member C that the afterbody needle tubing is provided with screw thread and spiral depth stop 1 is installed.

Below in conjunction with accompanying drawing description is made in enforcement of the present utility model.

Fig. 1 is the front elevation separately of outer casing needle A of the present utility model, solid needle B, biopsy nook closing member C.

When Fig. 2 is this utility model inserting needle solid needle B is injected the view of outer casing needle A.

Fig. 3 be this utility model incisional biopsy when organizing biopsy nook closing member C inject the view of outer casing needle A.

According to shown in Figure 1, use the process technology of entry needle, make outer casing needle A, solid needle B, biopsy nook closing member C, external thread sleeve 3, spiral depth stop 1 with materials such as rustless steels.The external diameter of outer casing needle A is 2mm, length is 69mm, at the short slot 2 that to have a wide 1.2mm trough rim of long 6mm be knife-edge of the syringe needle abdominal part apart from its syringe needle 3mm place, on hot pressing on the needle tubing of outer casing needle A is fixing external thread sleeve 3(or on its afterbody needle tubing, hold screw thread successfully) and install spiral depth stop 1; The diameter of solid needle B is 1.6mm, and length is 80mm, and it can inject the internal diameter of outer casing needle A just and fill up the pin mouth of outer casing needle A, testis epidermis fragment and unclean thing is brought into when preventing inserting needle to cause that testis infects or hematoma after causing operation in the testis tissue; The external diameter of biopsy nook closing member C is 1.6mm, and length is 78mm, and its syringe needle is a cecum, and the short slot 2 corresponding peripheries that the side at distance syringe needle 1.5mm place has a wide 1.2mm of long 6mm and outer casing needle A are the rectangular mouth 4 of knife-edge.

This utility model is to use like this.At first solid needle B is injected in the outer casing needle A (shown in Figure 2), rotate spiral depth stop 1 according to different use objects, regulate depth of needle, behind the inserting needle solid needle B is taken out, then inject biopsy nook closing member C and make rectangular mouthfuls 4 of biopsy nook closing member C aim at the short slot 2(of outer casing needle A shown in Figure 3) according to the labelling on the backshank, add negative pressure with 10 milliliters of syringes then testis tissue is sucked in the biopsy nook closing member C, rotation biopsy nook closing member C is by short slot 2, rectangular mouthful of 4 liang of knife-edge incisional biopsy tissues.

Prove through hundreds of routine clinical trials, use this utility model to do testis biopsy, inserting needle speed is fast, the incisional biopsy tissue rapidly, safety and its success rate be up to 100%, occurs inserting needle when having no precedent an example operation and cross dark even penetrate and cause that testis infects or the phenomenon of hematoma because of testis epidermis fragment and unclean thing are brought into after causing operation in the testis tissue during inserting needle.

Claims

1, a kind of testis biopsy pin of being made up of hollow needle, biopsy nook closing member, tack outer casing needle is characterized in that:

(1) syringe needle of outer casing needle A is sharp, at its syringe needle abdominal part short slot 2 that to have a trough rim be knife-edge, is provided with screw thread and the spiral depth stop 1 that can regulate depth of needle is installed on its afterbody needle tubing;

(2) hollow needle is made solid needle B, solid needle B be able to inject the internal diameter of outer casing needle A, and its length is for just filling up the pin mouth of outer casing needle A;

(3) syringe needle of biopsy nook closing member C is a cecum, and having the short slot 2 corresponding peripheries with outer casing needle A in a side of this syringe needle is rectangular mouthful 4 of knife-edge.