CN87213746U

CN87213746U - Sleeve medical puncture biopsy needle

Info

Publication number: CN87213746U
Application number: CN 87213746
Authority: CN
Inventors: 易少夫
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-09-23
Filing date: 1987-09-23
Publication date: 1988-09-28

Abstract

The utility model relates to a sleeve medical puncture biopsy needle used for puncture biopsy through the chest wall and the lung. Overcoming the difficulties of low rate of success of operation sampling by other biopsy needles, and inoculating of cancer and tumour in needle. The utility model has the advantages of simple structure, simple manufacture, convenient operation and easy popularization. The sleeve medical puncture biopsy needle is a safe medical surgical instrument for puncture biopsy.

Description

Sleeve medical puncture biopsy needle

This utility model belongs to operating theater instruments.

No matter in recent years through all development to some extent on method or aspect the apparatus improvement of thoracic wall lung needle biopsies, the improvement of puncture needle, innovation purpose are to improve the success rate of obtaining tissue and the complication that reduces puncture, and complication threatens bigger with the inoculation of pulmonary carcinoma thoracic wall needle track to patient, many reports are all arranged both at home and abroad, yet do not see any aspiration biopsy pin so far as yet or which kind of method can be avoided fully.Both having made is that traditional direct excision is got biopsy, though resection organization is big, operation is complicated, and the edge of a knife is big, and healing is slow, and easy infection, cicatrix are big, and the danger that cancer kind and blood road shift is also big, and the suffered misery of patient is also big.

This utility model purpose is that design a kind ofly can be obtained tissue satisfactorily, the biopsy that can in sleeve pipe, isolate the biopsy sampling probe and be got again, and effectively avoid the needle track of cancerous protuberance to inoculate.This utility model also can be used for mediastinum tumor, superficial tumor and mammary gland tumor etc. are carried out aspiration biopsy except that through the biopsy of thoracic wall lung puncture.

This utility model is simple in structure, is made up of one piece of metal nook closing member, one piece of metal biopsy sampling probe and one piece of metal puncture needle cannula.With biopsy sampling probe monocline face needle point, change the forked inclined-plane into, and its forked opening part one side--the sword face is worn into clockwise cutting knife-edge, can be to swollen thing rotary cut during operation to clockwise rotate needle body, then make pin continue to penetrate, side opening with the needle point side is scraped tissue in the aspiration biopsy sampling probe needle tubing, the aspiration biopsy sampling probe is all return in the puncture needle sleeve pipe taken out at last.The other side opening of aspiration biopsy sampling probe needle point can be opened 1～2, the length of aspiration biopsy sampling probe can be at 70-120mm, its needle point external diameter is between 0.50mm-1.55mm, the length of puncture needle sleeve pipe is between the 50-55mm, its external diameter can be between 0.80mm-2.00mm, the cutting angle of aspiration biopsy sampling needle point all is decided to be 60 ° of angles, and the injection needle with common is identical in principle for the selection of needle stand and needle tubing and making.

Embodiment accompanying drawings of the present utility model is as follows:

Fig. 1 is a bushing type aspiration biopsy pin front schematic view;

Fig. 2 is bushing type aspiration biopsy pin sampling probe needle point and side opening sketch map;

Fig. 3 is a bushing type aspiration biopsy pin sampling probe needle point cutting edge enlarged diagram;

As Fig. 1, bushing type aspiration biopsy pin is made up of sampling probe (Fig. 1 (b)), nook closing member (Fig. 1 (a)) and sleeve pipe (Fig. 1 (c)).Needle stand is processed back nickel plating with copper material, and nook closing member, needle tubing and sleeve pipe are all made of the thin material of rustless steel.Nook closing member (Fig. 1 (a)) diameter is 0.38mm, and length is 122mm, and needle core tip is the inclined-plane 45; The external diameter of sampling probe (Fig. 1 (b)) needle tubing is 0.60mm, and needle tubing thickness is 0.10mm, and length is 55mm.

As Fig. 2, sampling probe (Fig. 1 (b) opens the side opening (1) of an inclined-plane to needle point apart from needle point 7mm place, side opening (1) go up the angle (＜B) get 45, the length of side opening (1) is 2.5mm, needle point jag shape cutting inclined-plane (2).Sampling probe needle point angle (＜C) be 30 ° of angles.

As Fig. 3, get sampling probe needle point cutting edge the cutting angle (＜A) be 60 ° of angles, (4), (5), (3) are respectively pipe outer wall, inside pipe wall and cutting edge in the sketch map.

With the high success rate that the above-mentioned puncture biopsy needle of making carries out both can having reached through the sampling of the wall of the chest Transthoracic Biopsy sampling, can avoid again needle track inoculation cancerous swelling.

Claims

A kind of bushing type medical thrust biopsy needle is characterized in that:

(1), bushing type medical thrust biopsy needle is made up of nook closing member (Fig. 1 (a)), sampling probe (Fig. 1 (b)) and sleeve pipe (Fig. 1 (c));

(2), biopsy sampling probe (Fig. 1 (b)) needle point cutting angle (＜A) be 60 ° of angles.