CN211460317U

CN211460317U - Tubular biopsy forceps

Info

Publication number: CN211460317U
Application number: CN201922388949.4U
Authority: CN
Inventors: 何海艳; 何宁; 吴伟慎; 赵莹; 张国平; 魏兆飞; 张颖
Original assignee: TIANJIN CENTER FOR DISEASE CONTROL AND PREVENTION
Current assignee: TIANJIN CENTER FOR DISEASE CONTROL AND PREVENTION
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-11
Anticipated expiration: 2029-12-26

Abstract

The utility model provides a tubular biopsy forceps, which comprises a forceps tube and two pressing plates, wherein the forceps tube is in a tubular shape, the edge of the lower end of the forceps tube is an annular tube blade, a blade is arranged in the forceps tube above the tube blade, the blade is in a circular arc shape, and the two ends of the blade are rotationally connected with the inner side wall of the forceps tube through connecting rods; the clamp comprises a clamp pipe and is characterized in that a vertical connecting hole penetrating through the upper end of the clamp pipe is formed in the side wall of the clamp pipe, the free end of a connecting rod penetrates through the side wall of the clamp pipe and is fixedly connected with the end of a gear in the connecting hole, a flexible rack meshed with the gear is arranged on the periphery of the gear, connecting rods are fixedly connected to two ends of the flexible rack respectively, the free end of each connecting rod extends out of the opening of the connecting hole in the upper end of the clamp pipe, and the pressing plate above the clamp pipe drives the. This tubulose biopsy forceps holds pathological change tissue through hollow tong pipe, and the rotary blade through tong pipe bottom carries out the surely of pathological change tissue and gets and the bearing, realizes that the depth of focus tissue surely gets, provides more audio-visual detection sample for the diagnosis of disease.

Description

Tubular biopsy forceps

Technical Field

The utility model belongs to the technical field of medical product, especially, relate to a tubulose biopsy forceps.

Background

Biopsy, also called surgical pathology examination, refers to the technology of cutting, clamping or puncturing lesion tissues from the body of a patient, and separating and taking out the lesion tissues for pathology examination, in the prior art, most biopsy forceps can take away a piece of lesion tissues from the outside of a focus or after penetrating into the inside of the focus, that is, only take away the lesion tissues at a certain point of the focus, cannot cut deeply, cannot visually know the overall situation from the outside to the inside of the focus through the lesion tissues, and brings inconvenience to diagnosis of some diseases.

Disclosure of Invention

In view of this, the present invention aims to overcome the above-mentioned defects existing in the prior art, and provides a biopsy forceps for whole lesion tissue, which can cut the lesion from outside to inside in depth.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a tubular biopsy forceps comprises a forceps tube and two pressing plates, wherein the forceps tube is cylindrical, the edge of the lower end of the forceps tube is an annular tube blade, a blade is arranged in the forceps tube above the tube blade, the blade is arc-shaped, and two ends of the blade are rotatably connected with the inner side wall of the forceps tube through connecting rods;

a vertical connecting hole penetrating through the upper end of the clamp pipe is formed in the side wall of the clamp pipe, the free end of the connecting rod penetrates through the side wall of the clamp pipe and is fixedly connected with the end of a gear in the connecting hole, a flexible rack meshed with the gear is arranged on the periphery of the gear, connecting rods are fixedly connected to two ends of the flexible rack respectively, and the free end of each connecting rod extends out of the opening of the connecting hole in the upper end of the clamp pipe;

the pressing plate is positioned above the clamp pipe, the lower end of the pressing plate is fixedly connected with the two connecting rods which are positioned in the same side in the two connecting holes, the bottom surface of the pressing plate is fixedly provided with a plurality of sliding rods, the sliding rods are inserted in sliding holes formed in the side wall of the clamp pipe in a sliding mode, and compression springs are arranged in the sliding holes below the sliding rods.

Furthermore, an arc-shaped groove is formed in the inner wall of the clamp pipe where the blade is located, the shape of the arc-shaped groove is matched with the rotating track of the blade, and when the blade and the clamp pipe are coaxial, the inner side wall of the blade and the inner side wall of the clamp pipe are located on the same curved surface.

Furthermore, the upper end of the arc-shaped groove is provided with a blocking platform used for blocking the blade, and the blocking platform is formed by downwards extending the inner side wall of the clamp pipe.

Furthermore, when the edge of the blade abuts against the lower end of the baffle table, one of the pressing plates abuts against the end of the clamp pipe, and when the other pressing plate abuts against the end of the clamp pipe, the edge of the other side of the blade abuts against the lower end of the baffle table.

Furthermore, the cross section of the connecting hole is rectangular, and the side wall of the connecting rod is connected with the side wall of the connecting hole in a sliding manner.

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

(1) this tubulose biopsy forceps holds pathological change tissue through hollow tong pipe, carries out the surely of pathological change tissue and bearing through the rotary blade of tong pipe bottom, realizes that the depth of focus tissue surely gets, provides more audio-visual detection sample for the diagnosis of disease.

(2) This tubulose biopsy pincers, the in-process that the tong pipe pierced, the blade laminating can not cause the influence to the motion of tong pipe in the arc wall of tong pipe inner wall, can not influence the integrality of sample yet.

(3) This tubulose biopsy forceps through pressing the position of board control blade, realizes hiding, cutting and the bearing of blade, easy operation, convenient to use.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic view of the overall structure of a tubular biopsy forceps according to the present invention;

FIG. 2 is a perspective view of a tubular biopsy forceps according to the present invention;

FIG. 3 is a perspective view of a tubular biopsy forceps according to the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic sectional view of a tubular biopsy forceps according to the present invention;

FIG. 6 is an enlarged view of portion A of FIG. 5;

FIG. 7 is a schematic view of the overall structure of a tubular biopsy forceps according to the present invention;

FIG. 8 is a schematic view of the overall structure of a tubular biopsy forceps according to the present invention;

FIG. 9 is an enlarged view of portion A of FIG. 7;

fig. 10 is an enlarged view of a portion a in fig. 8.

Description of reference numerals:

1-clamping a pipe; 11-connecting holes; 12-a slide hole; 13-an arc-shaped groove; 14-a tube blade; 15-blocking platform; 2-pressing the board; 21-a slide bar; 3-a connecting rod; 4-a spring; 5-a blade; 6-a rack; 7-a gear; 8-connecting rod.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. 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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following examples with reference to the accompanying drawings:

as shown in fig. 1 to 8, a tubular biopsy forceps comprises a forceps tube 1 and two pressing plates 2, wherein the forceps tube 1 is cylindrical, the edge of the lower end of the forceps tube is an annular tube edge 14, a blade 5 is arranged in the forceps tube 1 above the tube edge 14, the blade 5 is arc-shaped, and two ends of the blade are rotatably connected with the inner side wall of the forceps tube 1 through a connecting rod 8;

the inner wall department of the forceps tube 1 where the blade 5 is located is provided with an arc-shaped groove 13, the shape of the arc-shaped groove 13 is matched with the rotating track of the blade 5, when the blade 5 is coaxial with the forceps tube 1, the inner side wall of the blade 5 and the inner side wall of the forceps tube 1 are positioned on the same curved surface, interference is avoided when the forceps tube 1 is penetrated into pathological change tissues, the upper end of the arc-shaped groove 13 is provided with a blocking platform 15 for blocking the blade 5, the rotating range of the blade 5 is limited, the position of the blade 5 is convenient to control, and the blocking platform 15 is formed by downward extension of the inner side wall of the forceps tube 1.

A vertical connecting hole 11 penetrating through the upper end of the clamp pipe 1 is formed in the side wall of the clamp pipe 1, the section of the connecting hole 11 is rectangular, the free end portion of a connecting rod 8 penetrates through the side wall of the clamp pipe 1 and is fixedly connected with the end portion of a gear 7 in the connecting hole 11, a flexible rack 6 in meshed connection with the gear 7 is arranged on the periphery of the gear 7, the flexible rack 6 is U-shaped and bypasses below the gear 7, two ends of the flexible rack extend upwards, two end portions of the rack 6 are respectively and fixedly connected with a connecting rod 3, the free end portion of the connecting rod 3 extends out of the opening of the connecting hole 11 in the upper end of the clamp pipe 1, and the side wall of the connecting rod 3 is connected with the; the flexible rack 6 can be a plastic rack 6, a nylon rack 6 or a novel metal flexible rack 6.

The pressing plate 2 is positioned above the clamp pipe 1, the lower end of the pressing plate is fixedly connected with the two connecting rods 3 positioned on the same side in the two connecting holes 11, the connecting rods 3 and the racks 6 fixedly connected with the end parts of the connecting rods 3 are driven to move by controlling the displacement of the pressing plate 2, so that the gear 7 is driven to rotate, and the gear 7 drives the blade 5 to rotate;

the bottom surface of the pressing plate 2 is fixedly provided with a plurality of sliding rods 21, the sliding rods 21 are inserted into sliding holes 12 formed in the side wall of the clamp tube 1 in a sliding mode, compression springs 4 are arranged in the sliding holes 12 below the sliding rods 21, upward thrust is provided for the pressing plate 2 through the springs 4, when one pressing plate 2 is pressed, the other pressing plate 2 automatically bounces upwards under the thrust of the springs 4, the transmission process among the two pressing plates 2, the connecting rod 3 and the rack 6 is achieved, and meanwhile, the rack 6 and the gear 7 are meshed more tightly through the thrust of the springs 4.

For convenience of operation, when the edge of the blade 5 abuts against the lower end of the baffle 15, one of the pressing plates 2 abuts against the end of the clamp pipe 1, and when the other pressing plate 2 abuts against the end of the clamp pipe 1, the other edge of the blade 5 abuts against the lower end of the baffle 15.

In the use process, one of the pressing plates 2 is pressed at first to enable the blade 5 to be hidden in the arc-shaped groove 13, the clamp tube 1 is penetrated into the pathological change tissue, after the blade is deeply penetrated to a certain depth, the other pressing plate 2 is pressed to enable the blade 5 to rotate, the pathological change tissue is cut in a semicircular shape from the lower end of the clamp tube 1, then the two pressing plates 2 are pressed and positioned at the same height, the blade 5 is rotated to be positioned at the lower end of the cut pathological change tissue to lift the pathological change tissue, then the clamp tube 1 is moved upwards and taken out, and when the clamp tube is taken out, one pressing plate 2 is pressed to enable the blade 5 to be moved into the arc-shaped groove 13 again to enable the pathological change tissue to slide out.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The tubular biopsy forceps are characterized by comprising a forceps tube (1) and two pressing plates (2), wherein the forceps tube (1) is cylindrical, the edge of the lower end of the forceps tube is an annular tube blade (14), a blade (5) is arranged in the forceps tube (1) above the tube blade (14), the blade (5) is arc-shaped, and two ends of the blade are rotatably connected with the inner side wall of the forceps tube (1) through connecting rods (8);

a vertical connecting hole (11) penetrating through the upper end of the clamp pipe (1) is formed in the side wall of the clamp pipe (1), the free end of the connecting rod (8) penetrates through the side wall of the clamp pipe (1) and is fixedly connected with the end of a gear (7) in the connecting hole (11), a flexible rack (6) meshed with the gear (7) is arranged on the periphery of the gear (7), two ends of the flexible rack (6) are respectively and fixedly connected with a connecting rod (3), and the free end of the connecting rod (3) extends out of the opening of the connecting hole (11) in the upper end of the clamp pipe (1);

the pressing plate (2) is positioned above the clamp pipe (1), the lower end of the pressing plate is fixedly connected with two connecting rods (3) which are positioned in the two connecting holes (11) and are positioned at the same side, a plurality of sliding rods (21) are fixedly arranged on the bottom surface of the pressing plate (2), the sliding rods (21) are inserted into sliding holes (12) formed in the side wall of the clamp pipe (1) in a sliding mode, and compression springs (4) are arranged in the sliding holes (12) below the sliding rods (21).

2. The biopsy forceps of claim 1, wherein: the inner wall of the clamp pipe (1) where the blade (5) is located is provided with an arc-shaped groove (13), the shape of the arc-shaped groove (13) is matched with the rotation track of the blade (5), and when the blade (5) and the clamp pipe (1) are coaxial, the inner side wall of the blade (5) and the inner side wall of the clamp pipe (1) are located on the same curved surface.

3. The biopsy forceps of claim 2, wherein: the upper end of the arc-shaped groove (13) is provided with a blocking platform (15) for blocking the blade (5), and the blocking platform (15) is formed by downwards extending the inner side wall of the clamp pipe (1).

4. The biopsy forceps of claim 3, wherein: when the edge of the blade (5) is abutted against the lower end of the baffle table (15), one of the pressing plates (2) is abutted against the end part of the clamp pipe (1), and when the other pressing plate (2) is abutted against the end part of the clamp pipe (1), the other side edge of the blade (5) is abutted against the lower end of the baffle table (15).

5. The biopsy forceps of claim 1, wherein: the cross section of the connecting hole (11) is rectangular, and the side wall of the connecting rod (3) is connected with the side wall of the connecting hole (11) in a sliding mode.