CN1456127A

CN1456127A - Vacuum quickly cutting biopsy device

Info

Publication number: CN1456127A
Application number: CN 03118957
Authority: CN
Inventors: 杜林�
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-14
Filing date: 2003-04-14
Publication date: 2003-11-19

Abstract

A vacuum-type device for fast excision biopsy is composed of a handle which has the position limiting ring having jam bolt, guide slot for moving said ring in it and with bayonets for locking the different neelde advance distance, and a pull body and its guide slot, a negative-pressure sucking cylinder under the pull body, a biopsy needle tube fixed to the conic head of said sucking tube, a biopsy needle sleeve in said needle tube, a spring between handle bottom and pull body, and a trigger unit. Its advantages are simple operation, high speed and less damage.

Description

Vacuum is cut the biopsy device soon

Technical field

The invention belongs to a kind of apparatus that human lesion organizes the particularly preceding histopathology diagnosis of tumor art to draw materials.

Background technology

Cancer is current serious threat human life and healthy disease, often be called second largest killer by people, how to make that the cancer patient makes a definite diagnosis in early days, the early treatment, strive for saving the cancer patient and obtain the chance of giving birth to, be the key subjects of numerous medical personnels' research always.The pathology worker is when diagnosing the illness, not only to do cytolgical examination, and to cut pathological tissues and do histological examination, cut tissue method commonly used and operate on and get biopsy, endoscope, biopsy needle are drawn materials, and operate on getting that the biopsy damage is big, the time is long, expense is high, endoscope draws materials needs expensive device, also only limiting to human body has the nature passage to be utilized, and as oral cavity, esophagus, anus, intestinal tube, certain limitation is arranged.That the aspiration biopsy pin is drawn materials is not convenient, efficient is low, sometimes because of organizing too little inconvenience to do histological examination.

Summary of the invention

The object of the present invention is to provide a kind of vacuum little to somatic damage, that efficient is high, expense is low, accuracy is high to cut the biopsy device soon.

Technical scheme of the present invention is: form vacuum by handle, biopsy needle tubing, biopsy nook closing member etc. and cut the biopsy device soon.The spacing snap ring of drawing materials is equipped with on handle body top, on the spacing snap ring snib is arranged, and having on the handle can be for snib along its snap ring guide groove that moves up and down, and the snap ring guide groove is provided with the bayonet socket of the different inserting needle distances of lockable; Bayonet socket is that 1-3 is right; The handle guide groove is arranged on the handle, handle body is arranged in the handle, the handle of handle body both sides can move up and down in the handle guide groove, the outer of negative pressure suction tube is set in the handle body, the biopsy needle tubing is fixed on the cone head hole of negative pressure suction tube overcoat and passes handle body and handle body upper end and stretch out externally, and the biopsy nook closing member passes plug and is fixed in the core bar top of negative pressure suction tube and is set in the biopsy needle tubing; The pedestal of core bar pushes up mutually with the handle collet; The spring that one end and core stem base or handle collet push up an end and handle bulk phase top mutually is housed in the handle, the percussion lock that can pin handle body when handle body drives overcoat and needle tubing compression spring to the datum line coincidence of the plug of the zero graduation line of overcoat and core bar is arranged on the handle.

The cutting edge of a knife or a sword end of said biopsy needle tubing has sharp keen " V " shape otch, and the periphery of needle tubing has the scale loop wire, and needle tubing is equipped with the depth of needle holder outward.

When the needle point of biopsy nook closing member overlaps at the datum line of the zero graduation line of overcoat and plug, expose 0.3-0.5mm from the cutting edge of a knife or a sword end of biopsy needle tubing, biopsy needle has the puncture ability.

The material of biopsy needle and spring is steel.The miscellaneous part material is high-intensity alloy aluminum or plastics.

The present invention has easy and simple to handle, and is little to somatic damage, and speed is fast, the safety of drawing materials, efficient advantages of higher, separates clinical urgent need, is the optimal apparatus of drawing materials of deep organ disease and tumor.

Description of drawings

Accompanying drawing is a structural representation of the present invention;

The specific embodiment

Below in conjunction with accompanying drawing the present invention is done further detailed description:

In the accompanying drawing, the spacing snap ring 6 of drawing materials is housed on the handle 15, on the spacing snap ring 6 snib 7 is arranged, snap ring guide groove 8 is arranged before and after the handle, two pairs of bayonet sockets 9 are arranged on the snap ring guide groove 8, and it is that three class are selected for use that the distance of drawing materials is divided into, and the spacing snap ring 6 of drawing materials, snib 7 can move up and down along snap ring guide groove 8, according to tumor size determine the to draw materials distance of inserting needle, pin in the hole clipping that snib 7 moves and precession is selected with the spacing snap ring 6 of drawing materials.There is handle guide groove 10 the handle both sides, and handle body 21 is arranged in the handle, and the handle 12 on the handle body can drag up and down in handle guide groove 10.There is percussion knob 11 at the handle middle part,

Negative pressure suction tube, spring 18 and biopsy needle are housed in the handle body.The negative pressure suction tube is made up of overcoat 16, core bar 17 and plug 14.

Suction tube overcoat 16 is contained in the bottom of handle body 21, and core bar 17 is fixed on the core stem base 19.It is fixed that plug 14 is contained in core bar 17 tops, and centering on around the suction tube overcoat 16 has spring 18.Spring 18 1 ends push up mutually with core stem base, and an end pushes up mutually with handle body 21.

Biopsy needle comprises nook closing member 13 and overcoat needle tubing 3.The nook closing member 13 cutting edge of a knife or a sword ends of biopsy needle become the rhizoma sparganic taper, and sharp keen needle point 1 is arranged, the top that cone head hole and the plug 14 of its lower end by suction tube overcoat 16 is fixed on core bar 17, and top is contained in the overcoat needle tubing 3; The bottom of overcoat needle tubing 3 is contained on the cone head hole of suction tube overcoat 1, overcoat needle tubing 3 cutting edge of a knife or a sword ends have sharp keen " V " shape otch 2, needle tubing 3 outer walls have scale loop wire 4, and depth of needle holder 5 is housed, minimum distance according to tumor exsomatizes and shows by scale loop wire 4, finds the relevant position of needle tubing, tighten depth of needle holder 5, puncture is accurately put in place.Each scale spacing is 1 centimetre.

Drive negative pressure suction tube overcoat 16 and overcoat needle guard 3 move downward compressible spring 18 when shaking hands, when the datum line of the zero line of moving a back overcoat to and plug overlaps, percussion knob 11 can pin handle body, the biopsy device is treats the percussion state, and at this moment the sharp keen needle point 1 of biopsy nook closing member 13 exposes 0.4mm, biopsy needle have the puncture ability.According to the distance of tumor apart from body surface safety entry point, tighten depth of needle holder 5, and lunge in the tumor, by pulling the trigger knob 11 to percussion, under the effect of spring force, suction tube overcoat 16 and overcoat needle tubing 3 shoot ahead, when making suction tube produce negative pressure, " V " of overcoat needle tubing 3 cuts shape mouth 2, downcuts pathological tissues fast and is sucked in the needle tubing.

The percussion lock 11 that can pin handle body is: establish a percussion knob on handle body, in the percussion knob trajectory is arranged, establish a spring eye on the handle body, spring is housed in the hole, pellet shot from a slingshot is housed on the spring, and when handle body slided to percussion knob position, pellet shot from a slingshot partly entered in the trajectory of percussion knob.This moment, handle body was lockable, and then pinned the biopsy device, pressed the percussion knob, and in the pellet shot from a slingshot indentation spring eye, handle body is ejected under the effect of spring 18, drove negative pressure suction tube overcoat 16 and overcoat needle tubing 3 bullets to the precalculated position.

Between handle body 21 tops and handle cushion rubber bumper is arranged.

Handle 12 on the handle body is arranged in the handle guide groove 10.

Claims

1, a kind of vacuum is cut the biopsy device soon, comprise handle (15), biopsy needle tubing (3), biopsy nook closing member (13), it is characterized in that: the spacing snap ring (6) of drawing materials is equipped with on handle body top, snib (7) is arranged on the spacing snap ring (6), having on the handle can be for snib along its snap ring guide groove (8) that moves up and down, and snap ring guide groove (8) is provided with the bayonet socket (9) of the different inserting needle distances of lockable; Handle guide groove (10) is arranged on the handle (15), handle body (21) is arranged in the handle (15), the handle of handle body both sides (12) can move up and down in handle guide groove (10); The overcoat of negative pressure suction tube (16) is loaded on handle body (21) bottom, biopsy needle tubing (3) is fixed on the cone head hole of negative pressure suction tube overcoat (16) and passes handle body and handle body upper end and to stretch out handle external, biopsy nook closing member (13) passes core bar (17) top that plug is fixed in the negative pressure suction tube and is set in the biopsy needle tubing (3), and the pedestal of core bar (19) pushes up mutually with handle collet (20); The spring (18) on one end and handle collet (20) or core stem base (19) Xiang Dingyi end and handle bulk phase top is housed in the handle (15), the percussion lock (11) that can pin handle body during to the datum line coincidence of the plug (14) of the zero graduation line of overcoat (16) and core bar when handle body compression spring (18) is arranged on the handle.

2, vacuum according to claim 1 is cut the biopsy device soon, it is characterized in that: the bayonet socket (9) on the snap ring guide groove (8) has 1-3 right.

3, vacuum according to claim 1 is cut the biopsy device soon, it is characterized in that: biopsy nook closing member (13) cutting edge of a knife or a sword end is the sharp keen needle point (1) of rhizoma sparganic taper.

4, vacuum according to claim 1 is cut the biopsy device soon, it is characterized in that: the cutting edge of a knife or a sword end of biopsy needle tubing (3) has sharp keen " V " shape otch (2), and its periphery has scale loop wire (4), and needle tubing is equipped with depth of needle holder (5) outward.

5, vacuum according to claim 1 is cut the biopsy device soon, it is characterized in that: when the needle point (1) of biopsy nook closing member (13) overlaps at the datum line of the zero graduation line of overcoat (16) and plug (14), expose from the cutting edge of a knife or a sword end of biopsy needle tubing (3).

6, vacuum according to claim 1 is cut the biopsy device soon, it is characterized in that: between handle body (21) top and handle cushion rubber bumper is arranged.

7, vacuum according to claim 1 is cut the biopsy device soon, it is characterized in that: the percussion lock (11) that can pin handle body is: establish a percussion knob on handle body, in the percussion knob trajectory is arranged, establish a spring eye on the handle body, spring is housed in the hole, pellet shot from a slingshot is housed on the spring, and when handle body slided to percussion knob position, pellet shot from a slingshot entered in the trajectory of percussion knob.