CN214805218U

CN214805218U - Safety puncture biopsy needle

Info

Publication number: CN214805218U
Application number: CN202120540067.XU
Authority: CN
Inventors: 王晓艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-11-23
Anticipated expiration: 2031-03-16

Abstract

The utility model discloses a safe puncture biopsy needle, including biopsy needle body and protecting crust, the biopsy needle body is located the inside one end fixed mounting of protecting crust and has the installation piece, and the equal fixed mounting in both sides of installation piece has the connecting block, and the both sides of protecting crust all set up with the logical groove of connecting block looks adaptation, and the one end of connecting block is passed and is led to the outside that the groove extends to the protecting crust, and the one end fixed mounting that the connecting block is located the protecting crust outside has first according to the piece, and the both sides of protecting crust all are provided with stop gear. The utility model discloses a stop gear's setting plays and carries out spacing effect to installation piece and biopsy needle body, and the setting of cooperation gag lever post and first spring can make the inside that breaks away from spacing installation piece and the automatic protective housing that retracts of biopsy needle body, and the biopsy needle body can be accomodate to the inside of protective housing when not needing the use, avoids exposing in the air, has reduced the risk that the occupation exposes, has promoted the practicality of device.

Description

Safety puncture biopsy needle

Technical Field

The utility model relates to the field of medical equipment, specifically a safe puncture biopsy needle.

Background

A biopsy needle is a medical instrument used for sampling living tissues of pyramidal tumors, unknown tumors, and the like of various organs such as kidney, liver, lung, breast, thyroid, prostate, pancreas, testis, uterus, ovary, body surface, and the like, and sucking cells, and the like. The handle is suitable for human engineering, the Lu's locking port of the injector can be connected after operation, a special cap for safely removing a sample is provided, and various types of biopsy needles can carry out bone marrow biopsy and bone marrow collection transplantation. The operation is safe and reliable, the time is short, and the recovery is fast.

Because the requirements on medical wastes under the new coronary epidemic situation are more strict, particularly the medical wastes directly contact various patients, in clinical work, the biopsy puncture needles and PTCD puncture needles under the guidance of B ultrasonic are not stored in a proper sharp instrument box with enough length after being used, and part of the biopsy puncture needles and PTCD puncture needles are exposed in the air, so that the requirements on infection prevention and control are not met, and the occupational exposure risk is increased.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems existing in the prior art and provides a safe puncture biopsy needle.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a safe puncture biopsy needle, includes biopsy needle body and protecting crust, the one end fixed mounting that the biopsy needle body is located the inside of protecting crust has the installation piece, the equal fixed mounting in both sides of installation piece has the connecting block, the logical groove with connecting block looks adaptation is all seted up to the both sides of protecting crust, the one end of connecting block is passed and is led to the outside that the groove extends to the protecting crust, and the one end fixed mounting that the connecting block is located the protecting crust outside has first according to the piece, the both sides of protecting crust all are provided with stop gear.

Preferably, the inside fixed mounting of protecting crust has the fixed plate, one side fixed mounting of fixed plate has the gag lever post, the other end of gag lever post and the inner wall fixed connection of protecting crust one side, connecting block and gag lever post sliding connection.

Preferably, the outer side of the limiting rod is provided with a first spring, one end of the first spring is fixedly connected with the connecting block, and the other end of the first spring is fixedly connected with the fixing plate.

Preferably, stop gear is including the installation shell, the inside fixed mounting of installation shell has the slide bar, the sliding surface connection of slide bar has the sliding sleeve, and one side of two sliding sleeves all articulates there is first down tube, the other end of first down tube articulates there is the head rod, the other end of head rod extends to the outside of installation shell, and the other end fixed mounting of head rod has the second to press the piece, and the opposite side of two sliding sleeves all articulates there is the second down tube, the other end of second down tube articulates there is the second connecting rod, the other end of second connecting rod extends to the outside of installation shell, and the other end fixed mounting of second connecting rod has the wedge fixture block, the draw-in groove with wedge fixture block looks adaptation is all seted up to the both sides of connecting block.

Preferably, the outer side of the sliding rod is provided with a second spring, the second spring is arranged between the sliding sleeve and the inner wall of the mounting shell, and a cushion block is fixedly mounted on one side of the fixing plate.

Preferably, a holding pad and a handle are fixedly mounted on the outer side of the protective shell.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a slide bar among the stop gear, the sliding sleeve, first down tube, the head rod, the second is according to the piece, the second down tube, the second connecting rod, the cooperation setting of wedge fixture block and second spring, play and carry out spacing effect to installation piece and biopsy needle body, the setting of cooperation gag lever post and first spring, can make the inside that breaks away from spacing installation piece and the automatic protective housing that retracts of biopsy needle body, the biopsy needle body is when need not using, can accomodate to the inside of protective housing, avoid exposing in the air, the risk that the occupation exposes has been reduced, the practicality of device has been promoted.

Drawings

Fig. 1 is a schematic three-dimensional structure of the present invention;

fig. 2 is a schematic structural view of a first cross section of the present invention;

FIG. 3 is a schematic structural view of a second cross section of the present invention;

fig. 4 is a schematic structural diagram of a third cross section of the present invention.

In the figure: the biopsy needle comprises a biopsy needle body 1, a protective shell 2, an installation block 3, a connection block 4, a through groove 5, a first pressing block 6, a fixing plate 7, a limiting rod 8, a first spring 9, an installation shell 10, a sliding rod 11, a sliding sleeve 12, a first inclined rod 13, a first connecting rod 14, a second pressing block 15, a second inclined rod 16, a second connecting rod 17, a wedge-shaped fixture block 18, a second spring 19, a cushion block 20, a holding pad 21 and a handle portion 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a safe puncture biopsy needle comprises a biopsy needle body 1 and a protective shell 2, wherein an installation block 3 is fixedly installed at one end of the biopsy needle body 1 positioned inside the protective shell 2, connection blocks 4 are fixedly installed at both sides of the installation block 3, through grooves 5 matched with the connection blocks 4 are formed at both sides of the protective shell 2, one end of each connection block 4 penetrates through the through grooves 5 and extends to the outer side of the protective shell 2, a first pressing block 6 is fixedly installed at one end of each connection block 4 positioned outside the protective shell 2, a fixing plate 7 is fixedly installed inside the protective shell 2, a limiting rod 8 is fixedly installed at one side of the fixing plate 7, the other end of the limiting rod 8 is fixedly connected with the inner wall of one side of the protective shell 2, the connection blocks 4 are slidably connected with the limiting rod 8, the limiting rod 8 is fixedly installed at one side of the fixing plate 7, and the connection blocks 4 are slidably connected with the limiting rod 8, play the effect spacing to connecting block 4, strengthen connecting block 4, stability when installation piece 3 and biopsy needle body 1 remove, the outside of gag lever post 8 is provided with first spring 9, the one end and the 4 fixed connection of connecting block of first spring 9, the other end and the 7 fixed connection of fixed plate of first spring 9, when biopsy needle body 1 needs to use, can drive connecting block 4 through the first piece 6 of pressing that promotes both sides, installation piece 3 and the removal of biopsy needle body 1, make biopsy needle body 1 stretch out protecting crust 2, first spring 9 receives tensile this moment, the outside fixed mounting of protecting crust 2 has pad 21 and stalk portion 22 of gripping, grip the taking of the protecting crust 2 of being convenient for of pad 21 and stalk portion 22, the both sides of protecting crust 2 all are provided with stop gear.

Referring to fig. 1-4, the limiting mechanism includes a mounting housing 10, a sliding rod 11 is fixedly mounted inside the mounting housing 10, sliding sleeves 12 are slidably connected to the surface of the sliding rod 11, a first diagonal rod 13 is hinged to one side of each of the two sliding sleeves 12, a first connecting rod 14 is hinged to the other end of the first diagonal rod 13, the other end of the first connecting rod 14 extends to the outside of the mounting housing 10, a second pressing block 15 is fixedly mounted to the other end of the first connecting rod 14, a second diagonal rod 16 is hinged to the other side of each of the two sliding sleeves 12, a second connecting rod 17 is hinged to the other end of the second diagonal rod 16, the other end of the second connecting rod 17 extends to the outside of the mounting housing 10, a wedge-shaped fixture block 18 is fixedly mounted to the other end of the second connecting rod 10, two sides of the connecting block 4 are respectively provided with a slot adapted to the wedge-shaped fixture block 18, a second spring 19 is disposed on the outside of the sliding rod 11, the second spring 19 is disposed between the sliding sleeves 12 and the inner wall of the mounting housing 10, when the mounting block 3 is moved to a certain position, the wedge-shaped fixture block 18 and the second connecting rod 17 are driven to move towards two sides, the second inclined rod 16 rotates along the hinge point to drive the two sliding sleeves 12 to move towards two sides simultaneously to compress the second spring 19, the second spring 19 is stressed to generate elastic deformation, under the elastic action of the second spring 19, the two sliding sleeves 12 are driven to reset, the wedge-shaped fixture block 18 is driven to be clamped into the inside of the clamping groove, the mounting block 3 and the biopsy needle body 1 are limited, when the biopsy needle body 1 is not required to be used, the first connecting rod 14 is driven to move by pressing the second pressing blocks 15 at two sides, the first inclined rod 13 rotates along the hinge point, the two sliding sleeves 12 are driven to move reversely along the sliding rod 11, the second inclined rod 16 is driven to rotate along the hinge point, the second connecting rod 17 and the wedge-shaped fixture block 18 are driven to move, the wedge-shaped fixture block 18 is separated from the clamping groove, under the elastic action of the stretched first spring 9, the connecting block 4, the mounting block 3 and the biopsy needle body 1 are driven to move, so that the biopsy needle body 1 extends and retracts to the inside of the protective shell 2, the mounting block 3 and the biopsy needle body 1 are limited by the matching arrangement of the sliding rod 11, the sliding sleeve 12, the first inclined rod 13, the first connecting rod 14, the second pressing block 15, the second inclined rod 16, the second connecting rod 17, the wedge-shaped fixture block 18 and the second spring 19 in the limiting mechanism, the mounting block 3 and the biopsy needle body 1 which are separated from the limiting position can be automatically retracted into the protective shell 2 by matching the arrangement of the limiting rod 8 and the first spring 9, the biopsy needle body 1 can be accommodated into the protective shell 2 when not needed to be used, the exposure in the air is avoided, the occupational exposure risk is reduced, the practicability of the device is improved, the cushion block 20 is fixedly mounted on one side of the fixing plate 7, the cushion block 20 is made of rubber, and has the function of buffering the mounting block 3 and the biopsy needle body 1, avoid causing the damage to biopsy needle 1 when accomodating.

The working principle is as follows: when the biopsy needle body 1 needs to be used, the first pressing blocks 6 at two sides are pushed to drive the connecting block 4, the mounting block 3 and the biopsy needle body 1 to move, when the mounting block 3 moves to a certain position, the wedge-shaped clamping blocks 18 and the second connecting rods 17 can be driven to move towards two sides, the second inclined rods 16 rotate along the hinged points to drive the two sliding sleeves 12 to simultaneously move towards two sides and compress the second springs 19, the second springs 19 are stressed to generate elastic deformation, under the elastic action of the second springs 19, the two sliding sleeves 12 can be driven to reset, the wedge-shaped clamping blocks 18 are driven to be clamped into the clamping grooves, the mounting block 3 and the biopsy needle body 1 are limited, the biopsy needle body 1 extends out of the protective needle body shell 2, at the moment, the first springs 9 are stretched, when the biopsy needle body 1 does not need to be used, the first connecting rods 14 are driven to move by pressing the second pressing blocks 15 at two sides, make first down tube 13 rotate along its pin joint, drive two sliding sleeves 12 along slide bar 11 antiport, it rotates along its pin joint to drive second down tube 16 simultaneously, and then drive second connecting rod 17 and wedge fixture block 18 and remove, make wedge fixture block 18 break away from the draw-in groove, under the elastic action that receives tensile first spring 9, drive connecting block 4, installation piece 3 and biopsy needle body 1 remove, make biopsy needle body 1 stretch out and draw back to the inside of protecting crust 2, accomodate biopsy needle body 1 to the inside of protecting crust 2, avoid exposing in the air, the risk that the occupation exposes has been reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a safe puncture biopsy needle, includes biopsy needle body (1) and protecting crust (2), its characterized in that: biopsy needle body (1) is located the inside one end fixed mounting of protecting crust (2) and has installation piece (3), the equal fixed mounting in both sides of installation piece (3) has connecting block (4), logical groove (5) with connecting block (4) looks adaptation are all seted up to the both sides of protecting crust (2), the one end of connecting block (4) is passed logical groove (5) and is extended to the outside of protecting crust (2), and connecting block (4) are located the one end fixed mounting in the protecting crust (2) outside and are first according to piece (6), the both sides of protecting crust (2) all are provided with stop gear.

2. A safety biopsy needle according to claim 1, wherein: the inside fixed mounting of protecting crust (2) has fixed plate (7), one side fixed mounting of fixed plate (7) has gag lever post (8), the other end of gag lever post (8) and the inner wall fixed connection of protecting crust (2) one side, connecting block (4) and gag lever post (8) sliding connection.

3. A safety biopsy needle according to claim 2, wherein: the outside of gag lever post (8) is provided with first spring (9), the one end and connecting block (4) fixed connection of first spring (9), the other end and fixed plate (7) fixed connection of first spring (9).

4. A safety biopsy needle according to claim 2, wherein: the limiting mechanism comprises an installation shell (10), a sliding rod (11) is fixedly installed inside the installation shell (10), sliding sleeves (12) are connected to the surface of the sliding rod (11) in a sliding mode, a first inclined rod (13) is hinged to one side of each of the two sliding sleeves (12), a first connecting rod (14) is hinged to the other end of each first inclined rod (13), the other end of each first connecting rod (14) extends to the outer side of the installation shell (10), a second pressing block (15) is fixedly installed at the other end of each first connecting rod (14), a second inclined rod (16) is hinged to the other side of each of the two sliding sleeves (12), a second connecting rod (17) is hinged to the other end of each second inclined rod (16), the other end of each second connecting rod (17) extends to the outer side of the installation shell (10), and a wedge-shaped clamping block (18) is fixedly installed at the other end of each second connecting rod (17), and clamping grooves matched with the wedge-shaped clamping blocks (18) are formed in the two sides of the connecting block (4).

5. A safety biopsy needle according to claim 4, wherein: the outer side of the sliding rod (11) is provided with a second spring (19), the second spring (19) is arranged between the sliding sleeve (12) and the inner wall of the mounting shell (10), and a cushion block (20) is fixedly mounted on one side of the fixing plate (7).

6. A safety biopsy needle according to claim 1, wherein: the outer side of the protective shell (2) is fixedly provided with a holding pad (21) and a handle part (22).