CN217408855U

CN217408855U - Novel puncture biopsy device

Info

Publication number: CN217408855U
Application number: CN202221019927.6U
Authority: CN
Inventors: 李海旭; 李伟; 何俊; 古善智
Original assignee: Hunan Tuojie Medical Technology Co ltd
Current assignee: Hunan Tuojie Medical Technology Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-09-13
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a novel puncture biopsy device, which belongs to the technical field of medical instruments, and comprises an upper shell, a lower shell, a biopsy needle, a slideway locating plate, a needle tube seat, a needle seat, a reset spring and the like, wherein the upper shell is detachably buckled on the lower shell, and the middle part of the upper shell is provided with a window for reading the distance of an upper chamber; the biopsy needle comprises an outer needle tube, an inner needle and a protective sleeve, the bottom of a needle tube seat is movably arranged in the moving groove, and the position of the needle tube seat can be limited by an elastic clamping tongue; the bottom of the needle seat is movably arranged in the trigger groove, and the needle seat is pushed to drive the elastic clamping tongue to move so as to release the limitation of the elastic clamping tongue on the needle tube seat. Compared with the prior art, the device provides observable window for the user, through the thorax and trigger split type design, can effectively avoid causing destructive risk to equipment because of the thorax and trigger action, prolongs its life, has also solved simultaneously that different doctors wear behind the gloves, and the finger can't match with the technical problem of device.

Description

Novel puncture biopsy device

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a novel aspiration biopsy device.

Background

Tumors are one of diseases seriously harming human health and life, the number of people suffering from tumors in China is increasing year by year in recent years, and the incidence rate is gradually younger. For neoplastic diseases, early detection, early treatment is the most effective means and correct diagnosis is crucial. The diagnosis can be developed by combining clinical, image and pathological analysis, and the pathological analysis is a very critical link for corresponding diagnosis. Needle biopsy devices are the primary means of obtaining tissue samples for pathological diagnosis.

In the existing equipment, a plurality of puncture biopsy devices exist, and some devices do not have an automatic puncture function, and need manual operation of a needle core and a needle tube, which brings inconvenience to biopsy work; although some equipment has possessed semi-automatic sampling function, utilizes the spring energy storage principle, realizes that the needle tubing pops out the sampling function automatically, nevertheless, owing to lack reasonable suggestion, guide information, operating personnel often can't the accurate understanding equipment state, lead to the maloperation to damage equipment, for example: when an operator loads the chamber, the prompt information is lacked, and the internal spring and the transmission structure are easily damaged by pulling the chamber for the second time; for another example: equipment possesses many and keeps off function of loading into the thorax, after operating personnel accomplished once loading into the thorax, does not know whether can continue to load into the thorax this moment to and the distance of loading into the thorax this moment, brings very big inconvenience for actual operation. Meanwhile, the thickness of the operation finger of the existing biopsy needle device at the handheld part is different for different operation operators, and the situation that the thickness of the handheld part is not suitable for the thickness of the finger of the operator wearing the glove also exists.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a novel puncture biopsy device, the device provide observable window for the user, through the thorax and trigger split type design, can effectively avoid because of the thorax and trigger action causes destructive risk to equipment, prolongs its life, has also solved simultaneously that different doctors wear behind the gloves, the finger can't with the technical problem that the device matches.

The utility model discloses an above-mentioned problem is solved to following technical means:

the utility model provides a novel aspiration biopsy device which characterized in that, includes epitheca, inferior valve, biopsy needle, slide locating plate, needle tube seat, needle file and reset spring, wherein: the upper shell is detachably buckled on the lower shell, and a window for reading the feeding distance is formed in the middle of the upper shell; sliding grooves are formed in the two sides of the lower shell, and a plurality of mounting grooves are symmetrically formed in the inner wall of the lower shell; the biopsy needle comprises an outer needle tube, an inner needle and a protective sleeve, the outer needle tube is movably arranged in a front guide hole of the lower shell and is fixedly connected with a needle tube seat, the inner needle is movably arranged in the outer needle tube and is fixedly connected with the needle seat, and the protective sleeve is sleeved on the outer needle tube and the inner needle; the middle of the bottom of the slide positioning plate is provided with a trigger groove, the insides of two sides of the slide positioning plate are provided with moving grooves, the outsides of two sides of the slide positioning plate are provided with clamping heads which are matched and installed with the installation grooves, and the tail end of the slide positioning plate at the trigger groove is provided with an elastic clamping tongue; the bottom of the needle tube seat is movably arranged in the moving groove, and the position of the needle tube seat can be limited by the elastic clamping tongue; the bottom of the needle seat is movably arranged in the trigger groove, and the needle seat is pushed to drive the elastic clamping tongue to move so as to release the limitation of the elastic clamping tongue on the needle tube seat; the reset spring is arranged between the needle tube seat and the needle seat and sleeved on the inner needle.

Preferably, a front guide inclined plane and a rear limiting plane are respectively arranged on two sides of the elastic clamping tongue, and a rear guide inclined plane is arranged in the middle of the rear limiting plane.

Preferably, the needle tube seat is symmetrically provided with loading keys at two sides, the loading keys are movably mounted in the sliding groove, the center of the needle tube seat is provided with a center hole, one end of the center hole is used for mounting an outer needle tube, the other end of the center hole is used for guiding an inner needle, the top of the needle tube seat is provided with a plurality of gear marks, the two sides of the bottom of the needle tube seat are provided with moving blocks, the moving blocks are movably mounted in the moving groove, the inner side of the bottom of each moving block is symmetrically provided with a plurality of rows of clamping blocks, the clamping blocks are matched with the elastic clamping tongues for limiting, and the center of the bottom of the needle tube seat is provided with a through groove.

Preferably, the two sides of the clamping block are respectively provided with a sliding inclined surface and a limiting straight surface, the sliding inclined surface and the front guide inclined surface work in a matched mode to ensure that the needle tube seat can be extruded and passes through the elastic clamping tongue, and the limiting straight surface and the rear limiting surface work in a matched mode to ensure that the needle tube seat cannot retreat after passing through the elastic clamping tongue.

Preferably, the needle file is including removing seat, tube socket, actuating lever, sliding block, drive tongue and triggering the button, wherein: the tube seat is arranged in the middle of the movable seat and is used for fixing and limiting the return spring; one end of the driving rod is installed at the bottom of the movable seat, and the other end of the driving rod can be movably arranged in a space formed by the trigger groove and the through groove through a sliding block at the bottom; the driving tongue is arranged at the tail end of the driving rod, a pressing inclined plane is arranged at the bottom of the driving tongue, and the pressing inclined plane and the rear guide inclined plane work together in a matching mode and are used for releasing the limitation of the elastic clamping tongue on the needle tube seat; the trigger button is arranged on the side face or the top of the movable seat, and when the trigger button is arranged on the side face of the movable seat, the lower shell is provided with a rear guide hole for installing the trigger button.

Preferably, the trigger button is further provided with a false trigger lock catch.

The utility model discloses a novel aspiration biopsy device has following beneficial effect:

the utility model provides a novel puncture biopsy device, the device provide observable window for the user, through the thorax and trigger split type design, can effectively avoid because of the thorax and trigger action causes destructive risk to equipment, prolong its life, also solved simultaneously that different doctors wear behind the gloves, the finger can't match with the device technical problem. In addition, the device adopts a novel transmission scheme and a clamping tongue scheme, can complete the loading and puncturing functions of the sampling needle tube by utilizing the forward and backward movement of the needle tube seat, and has simple structure and reliable work.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and obviously, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of a first window of the present invention;

fig. 3 is a schematic view of a second window of the present invention;

fig. 4 is a schematic view of the protection sleeve of the present invention;

fig. 5 is a schematic structural view of the lower shell of the present invention;

fig. 6 is a schematic view of the internal structure of the present invention;

FIG. 7 is a schematic structural view of the slide positioning plate of the present invention;

FIG. 8 is a schematic view of the needle cannula mount of the present invention;

FIG. 9 is a schematic view of the needle cannula holder of the present invention;

FIG. 10 is a schematic view of the positioning of the needle seat in the present invention;

FIG. 11 is a schematic view of the installation of the middle needle holder of the present invention;

fig. 12 is a schematic structural view of the middle needle base of the present invention;

FIG. 13 is a schematic view of the operation of the middle driving tongue of the present invention;

fig. 14 is a schematic view of the structure of the mis-triggering latch of the present invention;

fig. 15 is a schematic diagram of the middle trigger button of the present invention.

Wherein, 1-upper shell, 101-window, 2-lower shell, 201-sliding groove, 202-mounting groove, 203-front guide hole, 204-rear guide hole, 3-biopsy needle, 301-outer needle tube, 302-inner needle, 303-protective sleeve, 4-slideway positioning plate, 401-trigger groove, 402-moving groove, 403-draw gear, 404-elastic latch, 4041-front guide inclined plane, 4042-rear limiting plane, 4043-rear guide inclined plane, 5-needle tube seat, 501-upper button, 502-center hole, 503-gear mark, 504-moving block, 505-latch, 506-through groove, 5051-sliding inclined plane, 5052-limiting straight plane, 6-needle seat, 601-moving seat, 602-tube seat, 603-driving rod, 604-sliding block, 605-driving tongue, 606-triggering button, 607-pressing down inclined plane, 7-reset spring, 8-false triggering lock catch.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 15, the biopsy device includes an upper case 1, a lower case 2, a biopsy needle 3, a slide positioning plate 4, a needle seat 5, a needle seat 6 and a return spring 7, in the figure, the upper case 1 is detachably fastened on the lower case 2, a window 101 for reading the distance of the upper chamber is opened in the middle of the upper case 1, in this embodiment, the distance of the upper chamber can be seen through the window 101, for example: 10mm and 20 mm. In practice, a plurality of data and icons may be configured.

In the figure, the two sides of the lower shell 2 are provided with sliding grooves 201, the inner wall of the lower shell 2 is symmetrically provided with a plurality of mounting grooves 202, and the upper shell 1 and the lower shell 2 are connected by a buckle. The biopsy needle 3 comprises an outer needle tube 301, an inner needle 302 and a protective sleeve 303, the outer needle tube 301 is movably installed in the front guide hole 203 of the lower shell 2 and is fixedly connected with the needle tube seat 5, the inner needle 302 is movably installed in the outer needle tube 301 and is fixedly connected with the needle seat 6, the protective sleeve 303 is sleeved on the outer needle tube 301 and the inner needle tube 302, the outer needle tube 301, the inner needle 302 and the protective sleeve 303 can adopt the existing structure, and the protective sleeve mainly plays a role in protecting the needle tube and protecting medical staff from being punctured in the using process.

In the figure, a trigger groove 401 is formed in the middle of the bottom of the slide positioning plate 4, moving grooves 402 are formed in the two sides of the slide positioning plate 4, clamping heads 403 which are installed in a matched mode with the installation grooves 202 are arranged on the two sides of the slide positioning plate 4, and an elastic clamping tongue 404 is arranged at the tail end of the trigger groove 401 of the slide positioning plate 4; the resilient latch 404 is capable of moving downward when squeezed.

In this embodiment, the bottom of the needle holder 5 is movably mounted in the moving slot 402, and the position of the needle holder 5 can be limited by the elastic latch 404; the bottom of the needle seat 6 is movably arranged in the trigger groove 401, and the pushing needle seat 6 can drive the elastic clamping tongue 404 to move so as to release the limitation of the elastic clamping tongue 404 on the needle tube seat 5; the return spring 7 is arranged between the needle tube seat 5 and the needle seat 6 and is sleeved on the inner needle 302. The two sides of the elastic latch 404 are respectively provided with a front guiding inclined surface 4041 and a rear limiting surface 4042, and the middle part of the rear limiting surface 4042 is provided with a rear guiding inclined surface 4043.

In the drawing, the two sides of the needle tube seat 5 are symmetrically provided with a loading button 501, the loading button 501 is movably mounted in the sliding groove 201, the center of the needle tube seat 5 is provided with a central hole 502, one end of the central hole 502 is used for mounting an outer needle tube 301, the other end of the central hole 502 is used for guiding an inner needle 302, the top of the needle tube seat 5 is provided with a plurality of gear marks 503, the two sides of the bottom of the needle tube seat 5 are provided with moving blocks 504, the moving blocks 504 are movably mounted in the moving groove 402, the inner side of the bottom of the moving blocks 504 is symmetrically provided with a plurality of rows of fixture blocks 505, the fixture blocks 505 are matched with the elastic latch tongues 404 for limiting, and the center of the bottom of the needle tube seat 5 is provided with a through groove 506.

It should be noted that both sides of the latch 505 are respectively provided with a sliding inclined surface 5051 and a limiting straight surface 5052, the sliding inclined surface 5051 cooperates with the front guiding inclined surface 4041 to ensure that the needle tube seat 5 can be extruded and pass through the elastic latch 404, and the limiting straight surface 5052 cooperates with the rear limiting surface 4042 to ensure that the needle tube seat 5 cannot be retracted after passing through the elastic latch 404. Specifically, the sliding inclined surface 5051 contacts with the front guiding inclined surface 4041 first, the needle tube seat 5 is pulled to enable the needle tube seat 5 to be extruded and pass through the elastic clamping tongue 404, after the needle tube seat 5 passes through the elastic clamping tongue, the pulling force is released, under the pressure of the spring, the limiting straight surface 5052 is in close contact with the rear limiting surface 4042, and the needle tube seat 5 cannot retract after passing through the elastic clamping tongue 404.

In the figure, the needle seat 6 comprises a moving seat 601, a needle seat 602, a driving rod 603, a sliding block 604, a driving tongue 605 and a trigger button 606, wherein: the tube seat 602 is installed in the middle of the moving seat 601 and used for fixing and limiting the return spring 7; one end of a driving rod 603 is installed at the bottom of the moving seat 601, and the other end of the driving rod is movably arranged in a space formed by the trigger slot 401 and the through slot 506 through a sliding block 604 at the bottom; the driving tongue 605 is arranged at the tail end of the driving rod 603, the bottom of the driving tongue 605 is provided with a downward pressing inclined surface 607, the downward pressing inclined surface 607 and the rear guiding inclined surface 4043 have the same size, and are used for releasing the limitation of the elastic clamping tongue 404 on the moving groove 402 through matching work, specifically, when the needle seat 6 is pushed forwards, the driving tongue 605 is driven to downwards extrude the elastic clamping tongue 404, and when the elastic clamping tongue 404 is extruded to a certain degree, the elastic clamping tongue 404 moves downwards, and the needle tube seat is released to reset.

It should be noted that the trigger button 606 is disposed on the side or top of the movable base 601, and when the trigger button 606 is disposed on the side of the movable base 601, the lower case 2 is provided with a rear guide hole 204 for mounting the trigger button 606, and when the trigger button 606 is disposed on the top of the movable base 601, the upper case 1 should be provided with an opening to implement sliding type triggering. The trigger button 606 is further provided with a false trigger latch 8, and the false trigger latch 8 may be a plug pin.

In the operation process, medical staff through the training takes this biopsy needle device and can see in the window instruct the sign to learn concrete operation instruction, according to patient's actual pathological condition demand, if need sample length be 10mm, then slide backward and go up the thorax button and carry out the work of getting into the thorax of first biopsy needle device, slide get into the thorax button to the first sound that appears "ka", at this moment the window can correspond appear with gear instruct the sign, according to the sign is instructed, operating personnel can know the concrete position of getting into the thorax and whether can carry out the operation of getting into the thorax again. According to the actual pathological condition requirement of a patient, if the sampling length is 20mm, the operator can slide the loading key again to perform secondary loading work according to the identification indication, and the loaded device can perform puncture biopsy sampling work under the ultrasonic guidance in cooperation with the coaxial needle.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a novel aspiration biopsy device which characterized in that, includes epitheca (1), inferior valve (2), biopsy needle (3), slide locating plate (4), needle tubing seat (5), needle file (6) and reset spring (7), wherein:

the upper shell (1) is detachably buckled on the lower shell (2), and the middle part of the upper shell (1) is provided with a window (101) for reading the distance from the upper chamber;

sliding grooves (201) are formed in two sides of the lower shell (2), and a plurality of mounting grooves (202) are symmetrically formed in the inner wall of the lower shell (2);

the biopsy needle (3) comprises an outer needle tube (301), an inner needle (302) and a protective sleeve (303), the outer needle tube (301) is movably arranged in a front guide hole (203) of the lower shell (2) and is fixedly connected with a needle tube seat (5), the inner needle (302) is movably arranged in the outer needle tube (301) and is fixedly connected with a needle seat (6), and the protective sleeve (303) is sleeved on the outer needle tube (301) and the inner needle (302);

a trigger groove (401) is formed in the middle of the bottom of the slide positioning plate (4), moving grooves (402) are formed in the inner portions of two sides of the slide positioning plate (4), clamping heads (403) which are installed in a matched mode with the installation grooves (202) are arranged on the outer portions of two sides of the slide positioning plate (4), and an elastic clamping tongue (404) is arranged at the tail end of the trigger groove (401) of the slide positioning plate (4);

the bottom of the needle tube seat (5) is movably arranged in the moving groove (402), and the position of the needle tube seat (5) can be limited by an elastic clamping tongue (404);

the bottom of the needle seat (6) is movably arranged in the trigger groove (401), and the needle seat (6) is pushed to drive the elastic clamping tongue (404) to move so as to release the limitation of the elastic clamping tongue (404) on the needle tube seat (5);

the return spring (7) is arranged between the needle tube seat (5) and the needle seat (6) and is sleeved on the inner needle (302).

2. The new needle biopsy device as claimed in claim 1, wherein the two sides of the elastic latch (404) are respectively provided with a front guiding bevel (4041) and a rear limiting surface (4042), and the middle of the rear limiting surface (4042) is provided with a rear guiding bevel (4043).

3. The new needle biopsy device as claimed in claim 1, characterized in that the needle holder (5) is symmetrically provided with a loading button (501) on both sides, the loading button (501) is movably arranged in the sliding groove (201), the center of the needle tube seat (5) is provided with a central hole (502), one end of the central hole (502) is used for installing an outer needle tube (301), the other end of the central hole (502) is used for guiding an inner needle (302), the top of the needle tube seat (5) is provided with a plurality of gear marks (503), two sides of the bottom of the needle tube seat (5) are provided with moving blocks (504), the moving block (504) is movably arranged in the moving groove (402), a plurality of rows of fixture blocks (505) are symmetrically arranged on the inner side of the bottom of the moving block (504), the clamping block (505) is matched with the elastic clamping tongue (404) for limiting, and the center of the bottom of the needle tube seat (5) is provided with a through groove (506).

4. The novel needle biopsy device as claimed in claim 3, wherein the two sides of the latch (505) are respectively provided with a sliding inclined surface (5051) and a limiting straight surface (5052), the sliding inclined surface (5051) and the front guiding inclined surface (4041) cooperate to ensure that the needle holder (5) can be squeezed and pass through the elastic latch (404), and the limiting straight surface (5052) cooperates with the rear limiting surface (4042) to ensure that the needle holder (5) cannot be retracted after passing through the elastic latch (404).

5. The new needle biopsy device of claim 1, characterized in that the needle hub (6) comprises a moving hub (601), a tube hub (602), a driving rod (603), a sliding block (604), a driving tongue (605) and a trigger button (606), wherein:

the pipe seat (602) is arranged in the middle of the movable seat (601) and is used for fixing and limiting the return spring (7);

one end of the driving rod (603) is installed at the bottom of the moving seat (601), and the other end of the driving rod can be movably arranged in a space formed by the trigger groove (401) and the through groove (506) through a sliding block (604) at the bottom;

the driving tongue (605) is arranged at the tail end of the driving rod (603), a pressing inclined plane (607) is arranged at the bottom of the driving tongue (605), and the pressing inclined plane (607) and the rear guiding inclined plane (4043) work together in a matching way and are used for releasing the limitation of the elastic clamping tongue (404) on the needle tube seat (5);

the trigger button (606) is arranged on the side surface or the top of the movable seat (601), and when the trigger button (606) is arranged on the side surface of the movable seat (601), the lower shell (2) is provided with a rear guide hole (204) for installing the trigger button (606).

6. The new needle biopsy device as claimed in claim 5, wherein the trigger button (606) is further provided with a false trigger latch (8).