CN202505393U

CN202505393U - Scale mark direct extraction type bone biopsy needle

Info

Publication number: CN202505393U
Application number: CN2012200611976U
Authority: CN
Inventors: 沈靖南; 黄纲; 王晋; 尹军强; 邹昌业; 谢显彪
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-24
Filing date: 2012-02-24
Publication date: 2012-10-31
Anticipated expiration: 2022-02-24

Abstract

The utility model discloses a scale mark direct extraction type bone biopsy needle, and relates to a bone biopsy needle, which solves the problems that bone substances easily drop and the success rate is low in the process of collecting the bone substances by the conventional bone biopsy needle and particularly bone tissues of bone tumor patients are more difficultly collected such that the conventional bone biopsy needle is not favorably applied clinically. The scale mark direct extraction type bone biopsy needle adopts the following technical scheme: a bone substance extractor is adopted; after a sharp needle tube is inserted, a telescopic locking block is shortened and vertically pressed, at the time, an arc-shaped claw hook is moved to a reducing part at the tail end of a tube sleeve and is inwardly converged to control the bone tissues to be in the bone substance extractor; a handle body is rotated at an angle of 360 DEG to completely separate the bone tissues; the bone substance extractor is pulled out to smoothly take out the bone tissues or is put back to continuously extract the bone tissues at the deeper part; an injector is inserted at the upper end of the sharp needle tube to extract marrow fluids; and centimeter scale marks on the exterior of the tube sleeve are convenient for controlling the puncture depth. Owing to the scale mark direct extraction type bone biopsy needle, the success rate of bone substance collection reaches 100%, so that the scale mark direct extraction type bone biopsy needle is particularly suitable for patients with bone tumors and blood diseases. Therefore, the scale mark direct extraction type bone biopsy needle is suitable for wide clinical use.

Description

Scale marker directly extracts formula bone biopsy needle

Technical field

This utility model relates to a kind of bone biopsy needle, is specifically related to a kind of scale marker and directly extracts 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; 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.

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; Be unfavorable for the problem used clinically, and then provide a kind of scale marker directly to extract formula bone biopsy needle.

The technical scheme of this utility model is: scale marker directly extracts formula bone biopsy needle and comprises 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 there is the centimeter scale sign said pipe box outside, 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.

This utility model compared with prior art has following effect: this utility model 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 takes 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 outside centimeter scale sign of pipe box is convenient to control paracentesis depth; This utility model 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; 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 the structural representation of this 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 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; There is centimeter scale sign 3-2-2 pipe box 3-2 outside; The open upper end place of the pipe box 3-2 syringe of can closely pegging graft; 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 the method for using of this utility model 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. a scale marker directly extracts formula bone biopsy needle; It is characterized in that 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 the pipe box (3-2) that handle body (3-1) is processed 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. scale marker according to claim 1 directly extracts formula bone biopsy needle, it is characterized in that: the terminal internal diameter of pipe box (3-2) reduces to constitute narrowing portion (3-2-1).

3. scale marker according to claim 1 directly extracts formula bone biopsy needle, it is characterized in that: there is centimeter scale sign (3-2-2) pipe box (3-2) outside.

4. scale marker according to claim 1 directly extracts formula bone biopsy needle, 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).