CN202027612U

CN202027612U - Direct-extraction-type bone biopsy needle

Info

Publication number: CN202027612U
Application number: CN201120042843XU
Authority: CN
Inventors: 盛春胜; 杨光升; 周晓光
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-02-21
Filing date: 2011-02-21
Publication date: 2011-11-09
Anticipated expiration: 2021-02-21

Abstract

A direct-extraction-type bone biopsy needle relates to a bone biopsy needle. According to the utility model, problems that sclerotin is easy to shed; success rate is low; and particularly bone organization of a bone tumour patient is difficult to collect and clinical application is not convenient, by adopting the bone biopsy needle, during the collecting process are solved. According to the utility model, by adopting a sclerotin extractor, a flexible locking piece is shortened and vertically pressed, after a blade needle tube is inserted; then an arc grapnel moves towards a narrow part of a tail end of a sleeve and the arc grapnel converges inwardly; the bone organization is controlled inside the sclerotin extractor; a handle body is rotated in 360 degrees; the bone organization is completely divided; the sclerotin extractor is pulled out; sclerotin organization is smoothly taken out; the bone organization at deeper positions can be continuously extracted by putting back the sclerotin extractor; and marrow liquid can be extracted by plugging a syringe on the upper end of the blade needle tube. According to the utility model, the success rate of sclerotin acquisition reaches 100% and the bone biopsy needle is especially suitable for patients with bone tumours and blood diseases. The bone biopsy needle is suitable for a wide clinical application.

Description

Direct extraction formula bone biopsy needle

Technical field

This utility model relates to a kind of bone biopsy needle, is specifically related to a kind of direct extraction formula bone biopsy needle, belongs to technical field of medical instruments.

Background technology

At present, bone biopsy needle of the prior art, its drawback is to take in the process sclerotin to be difficult for taking out from disconnected, and one-time success rate is low, need carry out repeatedly sclerotin collection, cause unnecessary misery to the patient, particularly sclerotin collection failure easily takes place in the bone tumor patient, often needs surgical incision to get the osseous tissue biopsy, for the diagnosis and treatment bring difficulty, be unfavorable for using clinically.

The utility model content

The purpose of this utility model is to be difficult for taking out from disconnected in order to solve existing bone biopsy needle sclerotin in gatherer process, one-time success rate is low, particularly bone tumor patient Yi Fasheng sclerotin collection failure is unfavorable for the problem used clinically, and then a kind of direct extraction formula bone biopsy needle is provided.

The technical solution of the utility model is: directly extract formula bone biopsy needle and comprise pin stamen and cutting edge needle tubing and sclerotin extractor, described pin stamen is formed by handle cover with the affixed nook closing member of handle cover, the cutting edge needle tubing is formed by handle body with the pipe box that handle body is made one, and the sclerotin extractor is formed by flexible lock dog and guide shoe and with the affixed grapple sleeve pipe of guide shoe; The internal diameter of described catheter end reduces to constitute narrowing portion, the upper end open place of the pipe box syringe of can closely pegging graft, and the telescopic end of described grapple has the arc grapple, and the telescopic rear portion of grapple is half arc shrouds; Described sclerotin extractor is sleeved on the nook closing member of pin stamen, described cutting edge needle tubing is sleeved on the grapple sleeve pipe of sclerotin extractor, the arc grapple is positioned at the edge of narrowing portion during flexible lock dog elongation state, when flexible lock dog shortens state and the flexible lock dog arc grapple of vertical pressing can be to the narrowing portion displacement.

This utility model compared with prior art has following effect: this utility model is by adopting the sclerotin extractor, after the cutting edge needle tubing inserts, the lock dog that will stretch shortens and vertical pressing, the arc grapple is to the narrowing portion displacement of catheter end at this moment, arc grapple toe-in, osseous tissue is controlled in the sclerotin extractor, 360 degree rotary handle bodies, osseous tissue is by fully from disconnected, extract the sclerotin extractor, successfully take out the sclerotin tissue, make the success rate of bone biopsy collection reach 100%, put back to the sclerotin extractor and can constantly extract the more osseous tissue of position, deep, can extract bone marrow fluid at the upper end of cutting edge needle tubing grafting syringe; This utility model is simple in structure, and is easy to operate and safe and reliable, the success rate height, and cost is low, has reduced patient's misery, has alleviated medical personnel's labor intensity; This utility model is particularly useful for bone tumor biopsy and hematopathy bone marrow biopsy and bone marrow fluid suction; This utility model is applicable in the bone and bone marrow biopsy detection in medical institutions field, is beneficial to extensive use clinically.

Description of drawings

Fig. 1 is a structural representation of the present utility model, the initial user mode figure of Fig. 2 this utility model, and Fig. 3 is the working state figure of sclerotin extractor 2, and Fig. 4 is the A place broken section enlarged drawing of Fig. 2, and Fig. 5 is the sketch map of sclerotin extractor 2.

The specific embodiment

In conjunction with Fig. 1～Fig. 5 present embodiment is described, the direct extraction formula bone biopsy needle of present embodiment comprises pin stamen 1 and cutting edge needle tubing 3 and sclerotin extractor 2, described pin stamen 1 is formed by handle cover 1-1 with the affixed nook closing member 1-2 of handle cover 1-1, cutting edge needle tubing 3 is formed by handle body 3-1 with pipe box 3-2 that handle body 3-1 makes one, and sclerotin extractor 2 is formed by flexible lock dog 2-1 and guide shoe 2-2 and with the affixed grapple sleeve pipe 2-3 of guide shoe 2-2; The internal diameter of described pipe box 3-2 end reduces to constitute narrowing portion 3-2-1, the upper end open place of the pipe box 3-2 syringe of can closely pegging graft, and the end of described grapple sleeve pipe 2-3 has arc grapple 2-3-2, and the rear portion of grapple sleeve pipe 2-3 is half arc shrouds 2-3-1; Described sclerotin extractor 2 is sleeved on the nook closing member 1-2 of pin stamen 1, described cutting edge needle tubing 3 is sleeved on the grapple sleeve pipe 2-3 of sclerotin extractor 2, arc grapple 2-3-2 is positioned at the edge of narrowing portion 3-2-1 during flexible lock dog 2-1 elongation state, when flexible lock dog 2-1 shortens state and the flexible lock dog 2-1 arc grapple 2-3-2 of vertical pressing can be to narrowing portion 3-2-1 place's displacement.

Using method: using method of the present utility model is described in conjunction with Fig. 1～Fig. 5, back and forth rotation is inserted the sharp tip of nook closing member 1-2 tested position and is penetrated cortical bone under the state of Fig. 2, take out pin stamen 1, continue back and forth rotation, the sharp edge annular of pipe box 3-2 is cut the osseous tissue of test point periphery and osseous tissue is wedged among the pipe box 3-2, the lock dog 2-1 that will stretch adjusts to shortening state and vertical pressing, as Fig. 3 state, this moment, arc grapple 2-3-2 received the effect of narrowing portion 3-2-1 and constriction tightly fetters osseous tissue, handle body 3-1 is done 360 degree rotations, osseous tissue is by fully from disconnected, extract sclerotin extractor 2, successfully take out the sclerotin tissue, if the patient of hematology, at the upper end open place grafting syringe of pipe box 3-2, marrow aspiration liquid can constantly extract the more osseous tissue in deep if the bone tumor patient can put back to sclerotin extractor 2 as required.

Claims

1. direct extraction formula bone biopsy needle, it is characterized in that it comprises pin stamen (1) and cutting edge needle tubing (3) and sclerotin extractor (2), described pin stamen (1) is formed by handle cover (1-1) with the affixed nook closing member (1-2) of handle cover (1-1), cutting edge needle tubing (3) is formed by handle body (3-1) with the pipe box (3-2) that handle body (3-1) is made one, sclerotin extractor (2) by flexible lock dog (2-1) and guide shoe (2-2) and and the affixed grapple sleeve pipe (2-3) of guide shoe (2-2) form.

2. direct extraction formula bone biopsy needle according to claim 1 is characterized in that: the terminal internal diameter of pipe box (3-2) reduces to constitute narrowing portion (3-2-1).

3. direct extraction formula bone biopsy needle according to claim 1, it is characterized in that: the end of grapple sleeve pipe (2-3) has arc grapple (2-3-2), and the rear portion of grapple sleeve pipe (2-3) is half arc shrouds (2-3-1).