CN102641139A

CN102641139A - Direct extraction type bone biopsy needle

Info

Publication number: CN102641139A
Application number: CN201110041454XA
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: 2012-08-22

Abstract

The invention provides a direct extraction type bone biopsy needle and relates to a bone biopsy needle. The direct extraction type bone biopsy needle solves the problems of the bone biopsy needle that in the collecting process, the bone falling is easy to occur, the success rate is low, particularly, the bone tissue collection of bone tumor patients is more difficult, and the application on clinics is unfavorable to realize. A bone extractor is adopted, after a blade needle pipe is inserted, a telescopic lock block is shortened and is vertically pressed, at the moment, an arc-shaped claw hook displaces towards the narrow reducing part at the tail end of the pipe sleeve, the arc-shaped claw hook is inwards collected, the bone tissue is controlled to be in the bone extractor, a handle body is rotated for 360 degrees, the bone tissue is completely cut, the bone extractor is pulled out, the bone tissue is smoothly taken out, the bone extractor is placed back, the bone tissues in deeper positions can be continuously extracted, and bone marrow liquid can be extracted through inserting and connecting an injector onto the upper end of the blade needle pipe. The direct extraction type bone biopsy needle has the advantages that the bone collection success rate reaches 100 percent, and the direct extraction type bone biopsy needle is particularly applicable to bone tumor and blood disease patients. The direct extraction type bone biopsy needle is suitable for being widely applied on clinics.

Description

Direct extraction formula bone biopsy needle

Technical field

The present invention relates to a kind of bone biopsy needle, be specifically related to a kind of direct extraction formula bone biopsy needle, belong 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; One-time success rate is low, need carry out repeatedly sclerotin collection, causes unnecessary misery to the patient; Particularly the bone tumor patient is prone to take place sclerotin collection failure, often needs surgical incision to get the osseous tissue biopsy; For the diagnosis and treatment bring difficulty, be unfavorable for using clinically.

Summary of the invention

The objective of the invention 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.

Technical scheme of the present invention is: directly extract formula bone biopsy needle and comprise pin stamen and cutting edge needle tubing and sclerotin extractor; Said 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 processed 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 said catheter end reduces to constitute narrowing portion, the open upper end place of the pipe box syringe of can closely pegging graft, and the telescopic end of said grapple has the arc grapple, and the telescopic rear portion of grapple is half arc shrouds; Said sclerotin extractor is sleeved on the nook closing member of pin stamen; Said 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.

The present invention compared with prior art has following effect: the present invention is through adopting the sclerotin extractor, and after the cutting edge needle tubing inserted, the lock dog that will stretch shortened and vertical pressing; The arc grapple is to the narrowing portion displacement of catheter end at this moment, and arc grapple toe-in is controlled at osseous tissue in the sclerotin extractor; 360 degree rotary handle bodies, osseous tissue from disconnected, is extracted the sclerotin extractor by fully; 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; The present invention is simple in structure, and is easy to operate and safe and reliable, and success rate is high, and cost is low, has reduced patient's misery, has alleviated medical personnel's labor intensity; The present invention is particularly useful for bone tumor biopsy and hematopathy bone marrow biopsy and bone marrow fluid suction; The present invention 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 invention, the initial user mode figure of Fig. 2 the present invention, 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 this embodiment is described; The direct extraction formula bone biopsy needle of this embodiment comprises pin stamen 1 and cutting edge needle tubing 3 and sclerotin extractor 2; Said 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 processes 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 terminal internal diameter of said pipe box 3-2 reduces to constitute narrowing portion 3-2-1, the open upper end place of the pipe box 3-2 syringe of can closely pegging graft, and the end of said 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; Said sclerotin extractor 2 is sleeved on the nook closing member 1-2 of pin stamen 1; Said 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.

Method for using: combine Fig. 1～Fig. 5 that method for using of the present invention is described, back and forth rotation is inserted the sharp of nook closing member 1-2 seized position and is penetrated cortical bone under the state of Fig. 2, takes 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, and the lock dog 2-1 that will stretch adjusts to shortening state and vertical pressing; Like 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, and handle body 3-1 is done 360 degree rotations, and osseous tissue is by fully from disconnected; Extract sclerotin extractor 2; Successfully take out the sclerotin tissue, if the patient of hematology, at the open upper end 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 comprises pin stamen 1 and cutting edge needle tubing 3 and sclerotin extractor 2; Said 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 processes 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.

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.