CN111920459A - Biopsy forceps head, biopsy forceps and endoscopic system - Google Patents

Abstract

Embodiments of the present invention provide a biopsy forceps head, a biopsy forceps and an endoscope system, which relate to the field of medical instruments. The biopsy forceps head includes a clamping part, a receiving part and a connecting part which are connected to each other, and the connecting part is used for connecting with the forceps head seat. In the rotational connection, an accommodation space for accommodating tissue is defined between the clamping part and the receiving part, wherein the receiving part is used to stop the tissue along a preset direction, and the preset direction is the direction from the receiving part to the connecting part. The biopsy forceps includes the above-mentioned biopsy forceps head, the endoscopy system includes the above-mentioned biopsy forceps, the biopsy forceps head, the biopsy forceps and the endoscopy system can control the amount of tissue to be clamped, reduce the risk of tissue being torn, and reduce the amount of bleeding, and shorten the operation time.

Description

Biopsy Forceps Heads, Biopsy Forceps and Endoscopic Systems

technical field

The invention relates to the field of medical instruments, in particular to a biopsy forceps head, a biopsy forceps and an endoscope system.

Background technique

With the widespread use of endoscopic technology, doctors began to use endoscopes to sample biopsies of the digestive tract and respiratory tract to provide direct evidence for disease diagnosis. Biopsy forceps are widely used in clinical practice. The working principle of the biopsy forceps is to insert the forceps into the human body through the endoscope forceps, and take an appropriate amount of sample tissue for subsequent pathological research.

The current clinical biopsy forceps, in the actual sampling process, the sampling volume cannot be controlled, which will lead to the clinical forceps taking too much sample tissue, with the risk of tearing, unable to provide suitable data for pathological analysis, and affecting the subsequent pathological diagnosis. And the operation time increases, increasing the patient's pain.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a biopsy forceps head, a biopsy forceps and an endoscope system, which can effectively improve the above-mentioned technical problems.

Embodiments of the present invention are implemented as follows:

In a first aspect, an embodiment of the present invention provides a biopsy forceps head for cooperating with a forceps head seat, the biopsy forceps head comprising a clamping part, a receiving part and a connecting part which are connected to each other, and the connecting part is used for connecting with all parts. The forceps head base is rotatably connected, and an accommodation space for accommodating tissue is defined between the clamping portion and the receiving portion, wherein the receiving portion is used to stop the tissue along a preset direction, and the The preset direction is the direction from the receiving portion to the connecting portion.

In an optional embodiment, a groove is recessed on one side of the clamping portion, and a space between an inner wall of the groove and the receiving portion forms the accommodating space.

In an optional embodiment, the groove is provided with an opening for entering the tissue, the receiving portion protrudes from the edge of the opening, and the receiving portion protrudes from the inner wall of the groove.

In an optional embodiment, a U-shaped cut portion is also protruded from the edge of the opening, and the receiving portion is provided between two ends of the cut portion.

In a second aspect, an embodiment of the present invention provides a biopsy forceps, comprising a forceps head seat and the biopsy forceps head according to any one of the foregoing embodiments, wherein the connecting portion is rotatably connected to the forceps head seat.

In an optional embodiment, the biopsy forceps head includes a first biopsy forceps head and a second biopsy forceps head, and the clamping portion of the first biopsy forceps head and the clamping portion of the second biopsy forceps head are opposite to each other. set, so that the accommodating space of the first biopsy forceps head and the accommodating space of the second biopsy forceps head together form a clamping space for clamping the tissue;

Both the connecting portion of the first biopsy forceps head and the connecting portion of the second biopsy forceps head can be rotatably connected to the forceps head seat to expand or reduce the clamping space.

In an optional embodiment, the connecting portion of the first biopsy forceps head and the connecting portion of the second biopsy forceps head are dislocated, so that the connecting portion of the first biopsy forceps head and the second biopsy forceps head are dislocated. The connecting parts of the pliers do not contact each other during the rotation relative to the pliers seat.

In an optional embodiment, a side surface of the connecting portion of the first biopsy forceps head close to the second biopsy forceps head is a first plane, and the connecting portion of the second biopsy forceps head is close to the first biopsy forceps One side surface of the head is a second plane, and the first plane is parallel to the second plane.

In an optional embodiment, the biopsy forceps further comprises a gasket mounted on the forceps head seat, the gasket is located at the connecting part of the first biopsy forceps head and the second biopsy forceps head between the connection parts, and opposite sides of the gasket are respectively abutted against the connection part of the first biopsy forceps head and the connection part of the second biopsy forceps head.

In an optional embodiment, the biopsy forceps further includes a connecting pin, the connecting portion is provided with a strip hole, a portion of the connecting pin is rotatably connected to the forceps head seat, and a portion of the connecting pin is rotatably connected to the forceps head seat. The other part is movably matched with the strip hole;

The connecting pin is used to rotate relative to the pliers head seat when the connecting portion rotates relative to the pliers head seat, and move relative to the connecting portion along the extending direction of the strip hole.

In an optional embodiment, the bar-shaped hole has an arc-shaped inner wall corresponding to the rotation trajectory of the connecting portion.

In an optional embodiment, the biopsy forceps further includes a pull rod, one end of the pull rod is rotatably connected to the connecting portion, and the pull rod is movable along the preset direction and the direction opposite to the preset direction is connected to the pliers head seat so as to drive the connecting part to rotate relative to the pliers head seat and the pull rod simultaneously.

In a third aspect, an embodiment of the present invention provides an endoscope system, including the biopsy forceps according to any one of the foregoing embodiments.

The beneficial effects of the embodiments of the present invention include, for example:

The embodiment of the present invention provides a biopsy forceps head, the biopsy forceps head includes a clamping part, a receiving part and a connecting part which are connected to each other, the connecting part is rotatably connected with the forceps head seat, and the clamping part and the receiving part define a The accommodation space for accommodating the organization. It can be understood that when the biopsy forceps head is used for tissue sampling, the accommodating space can accommodate a quantitative amount of tissue, and at the same time, the receiving portion can stop the tissue in a predetermined direction, and the predetermined direction is the direction from the receiving portion to the connecting portion. In this way, the receiving portion can prevent too much tissue from leaking out of the accommodating space along a preset direction, so as to control the amount of tissue to be clamped, reduce the risk of tissue being torn, reduce the amount of bleeding and shorten the operation time.

The embodiment of the present invention also provides a biopsy forceps, the biopsy forceps includes the above-mentioned biopsy forceps head, and has all the functions of the biopsy forceps head. The biopsy forceps also has the beneficial effects of controlling the amount of tissue to be clamped, reducing the risk of tissue being torn, reducing the amount of bleeding and shortening the operation time.

An embodiment of the present invention also provides an endoscope system, which includes the above-mentioned biopsy forceps and has all the functions of the biopsy forceps. The endoscopic system also has the beneficial effects of controlling the amount of tissue to be clamped, reducing the risk of tissue being torn, reducing the amount of bleeding and shortening the operation time.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of a biopsy forceps provided in an embodiment of the present invention from a first perspective;

FIG. 2 is a schematic structural diagram of a biopsy forceps taking tissue according to an embodiment of the present invention;

3 is a schematic structural diagram of a biopsy forceps provided in an embodiment of the present invention from a second viewing angle;

4 is an exploded schematic diagram of a biopsy forceps provided by an embodiment of the present invention;

5 is a schematic structural diagram of a first biopsy forceps head provided in an embodiment of the present invention from a first viewing angle;

6 is a schematic structural diagram of a first biopsy forceps head provided in an embodiment of the present invention from a second viewing angle;

7 is a schematic structural diagram of a pliers head seat provided by an embodiment of the present invention;

8 is a schematic structural diagram of a gasket provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of the cooperation between a tie rod and a transmission shaft according to an embodiment of the present invention.

Icon: 1-biopsy forceps; 11-first biopsy forceps head; 111-holding part; 1111-groove; 1112-opening; 1113-reference surface; 112-receiving part; 113-connecting part; 1132-second connecting hole; 1133-first plane; 114-accommodating space; 115-cutting part; 12-second biopsy forceps head; 13-washer; 131-first connecting hole; 14-connecting pin; -Plier head seat; 151-first lug; 152-second lug; 153-seat body; 154-installation space; 155-first installation hole; 156-second installation hole; 16-draw rod; 161-transmission hole; 17-drive shaft; 18-clamping space; 2-organization; 3-reference plane.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in use, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", "third", etc. are only used to differentiate the description and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that a component is required to be absolutely horizontal or overhang, but rather may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "arranged", "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Please refer to FIG. 1 to FIG. 3 , the present embodiment provides a biopsy forceps 1, the biopsy forceps 1 is inserted into the human body through the endoscope forceps channel of the endoscope, the biopsy forceps 1 is provided with a clamping space 18, and the biopsy forceps 1 The human tissue 2 can be clamped through the clamping space 18 for subsequent pathological research.

Please refer to FIG. 1 to FIG. 3 , in this embodiment, the biopsy forceps 1 includes a forceps head seat 15 and a biopsy forceps head. In this embodiment, the number of biopsy forceps heads is two. For the convenience of description, two The biopsy forceps heads are respectively named as the first biopsy forceps head 11 and the second biopsy forceps heads 12 .

The clamping space 18 is located between the first biopsy forceps head 11 and the second biopsy forceps head 12. Both the first biopsy forceps head 11 and the second biopsy forceps head 12 are rotatably connected to the forceps head seat 15. It can be understood that, During the rotation of the first biopsy forceps head 11 and the second biopsy forceps head 12 relative to the forceps head seat 15 , the clamping space 18 can be expanded or reduced, thereby clamping or loosening the tissue 2 .

It should be noted that, in this embodiment, the first biopsy forceps head 11 and the second biopsy forceps head 12 have the same structure. The specific structure of the first biopsy forceps head 11 will be described in detail later. can refer to the structure of the first biopsy forceps head 11 .

Please refer to FIGS. 4 and 5 , and in conjunction with FIG. 2 , the first biopsy forceps head 11 includes a clamping portion 111 , a receiving portion 112 and a connecting portion 113 that are connected to each other. The connecting portion 113 is rotatably connected to the forceps head seat 15 . An accommodation space 114 for accommodating the tissue 2 is defined between the holding portion 111 and the receiving portion 112 , and the receiving portion 112 can stop the tissue 2 in a predetermined direction.

It should be noted that, in this embodiment, the preset direction is the direction from the receiving portion 112 to the connecting portion 113 . That is, the direction indicated by arrow A in FIG. 2 .

In this way, the receiving portion 112 can prevent excessive tissue 2 from leaking out of the accommodating space 114 in a preset direction, thereby controlling the amount of tissue 2 clamped, reducing the risk of tissue 2 being torn, thereby reducing the amount of bleeding and shortening the operation time.

It should be noted that, in this embodiment, the first biopsy forceps head 11 and the second biopsy forceps head 12 can stop the tissue 2 in a preset direction without adding additional stop parts, which can simplify the biopsy forceps 1 structure, reducing the manufacturing cost.

It should be noted that, after the first biopsy forceps head 11 and the second biopsy forceps head 12 are installed on the forceps head seat 15, the clamping portion 111 of the first biopsy forceps head 11 and the clamping portion of the second biopsy forceps head 12 111 are disposed opposite to each other, and the accommodating space 114 of the first biopsy forceps head 11 and the accommodating space 114 of the second biopsy forceps head 12 together form the above-mentioned clamping space 18 .

In actual use, when the clamping portion 111 of the first biopsy forceps head 11 and the clamping portion 111 of the second biopsy forceps head 12 are relatively close, the clamping space 18 is gradually reduced, and the tissue 2 is gradually clamped. During the process that the clamping portion 111 of the first biopsy forceps head 11 and the clamping portion 111 of the second biopsy forceps head 12 are relatively separated, the clamping space 18 is gradually enlarged, and the tissue 2 is gradually loosened.

Referring to FIG. 5 , in this embodiment, a groove 1111 is recessed on one side of the clamping portion 111 of the first biopsy forceps head 11 , and the space between the inner wall of the groove 1111 and the receiving portion 112 forms the aforementioned accommodating space 114 .

It can be understood that, when the tissue 2 is clamped, the groove 1111 can accommodate a part of the tissue 2 to ensure the amount of tissue 2 to be clamped, so that the amount of tissue 2 to be clamped will not be too small to affect subsequent pathological studies.

It should be noted that, in other embodiments, the clamping portion 111 may also be a flat plate structure, or the clamping portion 111 may also be a sawtooth structure.

Referring to FIG. 5 , in this embodiment, the groove 1111 is provided with an opening 1112 for allowing the tissue 2 to enter, and the receiving portion 112 protrudes from the edge of the opening 1112 . In this way, the receiving portion 112 does not occupy the inner space of the groove 1111 and does not affect the groove 1111 to accommodate the tissue 2 .

Specifically, referring to FIG. 5 , the edge of the opening 1112 has a reference surface 1113 , and the aforementioned “the receiving portion 112 protrudes from the edge of the opening 1112 ” can be understood as the receiving portion 112 protruding from the reference surface 1113 and moving away from the groove 1111 direction extension.

Of course, in other embodiments, the receiving portion 112 may also protrude from the inner wall of the groove 1111 .

It should be noted that, in this embodiment, the connecting portion 113 and the receiving portion 112 of the first biopsy forceps head 11 are integrally formed, and the connecting portion 113 and the receiving portion 112 integrally form a plate-like structure, which is convenient to manufacture.

Referring to FIG. 5 , in this embodiment, a U-shaped cutting portion 115 is also protruded from the edge of the opening 1112 . The cutting portion 115 is a sheet-like structure. When the cutting portion 115 acts on the tissue 2 , it is convenient to remove the tissue 2 from the human body. cut down.

It should be noted that the receiving portion 112 is provided between the two ends of the cutting portion 115, so that the receiving portion 112 will not affect the cutting operation of the cutting portion 115. After the cutting portion 115 cuts the tissue 2, the receiving portion 112 can Stop the tissue 2 in the preset direction in time to prevent the tissue 2 from leaking out of the accommodating space 114 along the preset direction.

It should be noted that, in this embodiment, the above-mentioned "U shape" does not require that the cutting portion 115 is absolutely U-shaped, and may also be a U-shaped structure, such as a C-shape, a straight shape, and the like.

In this embodiment, the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 are both rotatably connected to the forceps head seat 15 . Taking FIG. 2 as an example, when the connecting portion 113 of the first biopsy forceps head 11 is rotated clockwise and the connecting portion 113 of the second biopsy forceps head 12 is rotated counterclockwise, the clamping space 18 is gradually reduced. When the connecting portion 113 of the first biopsy forceps head is rotated counterclockwise and the connecting portion 113 of the second biopsy forceps head 12 is rotated clockwise, the clamping space 18 is gradually expanded.

Referring to FIG. 1 , in this embodiment, the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 are arranged in a dislocation.

It can be understood that, during the rotation of the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 relative to the forceps head seat 15, there will be no mutual contact or collision. In this way, the connection part 113 of the first biopsy forceps head 11 and the connection part 113 of the second biopsy forceps head 12 will not interfere with each other during the rotation process, so that the respective rotation ranges can be increased, and the clamping Space 18 grips tissue 2 more tightly.

Referring to FIGS. 2 and 5 , in this embodiment, the side surface of the connecting portion 113 of the first biopsy forceps head 11 close to the second biopsy forceps head 12 is a first plane 1133 , the connecting portion of the second biopsy forceps head 12 is a first plane 1133 . A side surface of 113 close to the first biopsy forceps head 11 is a second plane (not shown in the figure), and the first plane 1133 is parallel to the second plane. In this way, the probability of mutual contact and interference during the rotation of the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 relative to the forceps head seat 15 can be further reduced.

Referring to FIG. 6 , in this embodiment, the clamping portion 111 is a plane-symmetrical figure, the symmetry plane of the clamping portion 111 is used as the reference plane 3 , and the first plane 1133 is parallel to the reference plane 3 . In this embodiment, when the clamping portion 111 of the first biopsy forceps head 11 and the clamping portion 111 of the second biopsy forceps head 12 are disposed opposite to each other, the symmetry plane of the clamping portion 111 of the first biopsy forceps head 11 and the The symmetrical planes of the clamping portions 111 of the two biopsy forceps heads 12 are coincident, and the connection portion 113 of the first biopsy forceps head 11 and the connection portion 113 of the second biopsy forceps head 12 are misaligned. In addition, although the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 are dislocated, but the clamping portion 111 of the first biopsy forceps head 11 and the second biopsy forceps head 12 are clamped The part 111 will not be displaced, and will not affect the clamping operation of the tissue 2 by the clamping part 111 of the first biopsy forceps head 11 and the clamping part 111 of the second biopsy forceps head 12 .

Referring to FIGS. 3 and 4 , in this embodiment, the biopsy forceps 1 further includes a gasket 13 , and the gasket 13 is located between the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 and the opposite sides of the gasket 13 abut against the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 respectively.

In this way, due to the blocking effect of the gasket 13, when the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 rotate relative to the forceps head seat 15, they will not rub against each other and will not affect the rotation of each other. .

Please refer to FIGS. 4 and 5 , in this embodiment, the biopsy forceps 1 further includes a connecting pin 14 , a bar-shaped hole 1131 is provided on the connecting portion 113 of the first biopsy forceps head 11 , and a portion of the connecting pin 14 is connected to the forceps head. The seat 15 is rotatably connected, and the other part of the connecting pin 14 is movably matched with the strip hole 1131 .

It can be understood that when the connecting portion 113 of the first biopsy forceps head 11 rotates relative to the forceps head seat 15 , the connecting pin 14 rotates relative to the forceps head seat 15 and moves along the extending direction of the strip hole 1131 .

4, 5, 7 and 8, in this embodiment, the forceps head seat 15 is provided with an installation space 154, a first installation hole 155 and a second installation hole 156, a gasket 13, a first biopsy forceps The connecting portion 113 of the head 11 and the connecting portion 113 of the second biopsy forceps head 12 are both installed in the installation space 154 , and both the first installation hole 155 and the second installation hole 156 communicate with the installation space 154 .

3 and 8 , in this embodiment, the gasket 13 is provided with a first connecting hole 131 , and the connecting pin 14 passes through the first mounting hole 155 , the strip hole 1131 on the first biopsy forceps head 11 , and the first connecting pin 14 in sequence. A connecting hole 131 , a strip hole 1131 on the second biopsy forceps head 12 and a second mounting hole 156 . In this way, the first biopsy forceps head 11 , the spacer 13 and the second biopsy forceps head 12 are simultaneously mounted on the forceps head seat 15 through the connecting pins 14 .

In this embodiment, the bar-shaped hole 1131 of the first biopsy forceps head 11 has an arc-shaped inner wall corresponding to the rotation trajectory of the connecting portion 113 of the first biopsy forceps head 11 . In this way, during the rotation of the connecting portion 113 of the first biopsy forceps head 11 relative to the forceps head seat 15, the connecting pins 14 are not easily caught in the strip holes 1131 of the first biopsy forceps head 11, which can ensure the first biopsy forceps Smoothness of rotation of the connecting portion 113 of the head 11 .

Similarly, in this embodiment, the bar-shaped hole 1131 of the second biopsy forceps head 12 has an arc-shaped inner wall corresponding to the movement trajectory of the connecting portion 113 of the second biopsy forceps head 12 .

Specifically, referring to FIG. 7 , in this embodiment, the forceps head seat 15 includes a seat body 153 , a first lug 151 and a second lug 152 , one end of the first lug 151 and one end of the second lug 152 are connected to the seat body 153, the first mounting hole 155 is provided on the first lug 151, the second mounting hole 156 is provided on the second lug 152, the first lug 151 and the second lug 152 are arranged at intervals, and the seat body 153 is provided with a cavity, and the space between the first lug 151 and the second lug 152 is communicated with the cavity in the seat body 153 to form the aforementioned installation space 154 together.

Please refer to FIG. 3 , FIG. 4 and FIG. 9 , in this embodiment, the biopsy forceps 1 further includes a pull rod 16 , and one end of the pull rod 16 is connected to the connecting portion 113 of the first biopsy forceps head 11 and the second biopsy forceps head 12 at the same time. The connecting portion 113 is connected in rotation.

In this embodiment, when the pulling rod 16 moves in a preset direction or in a direction opposite to the preset direction, it can simultaneously drive the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 relative to each other. The clamp head seat 15 rotates.

2 , when the pulling rod 16 moves in the preset direction, the connecting portion 113 of the first biopsy forceps head 11 rotates clockwise, the connecting portion 113 of the second biopsy forceps head 12 rotates counterclockwise, the clamping space 18 is reduced, and the tissue 2 is gradually clamped. When the pulling rod 16 moves in the opposite direction to the preset direction, the connecting portion 113 of the first biopsy forceps head 11 rotates counterclockwise, the connecting portion 113 of the second biopsy forceps head 12 rotates clockwise, the clamping space 18 expands, and the tissue 2 is gradually loosen.

It can be understood that, in this embodiment, the direction opposite to the preset direction is the direction indicated by arrow B in FIG. 2 .

5 and 9, in this embodiment, the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 are both provided with second connecting holes 1132, and the pull rod 16 A transmission hole 161 is provided on the upper part, and a transmission shaft 17 is rotatably sleeved in the transmission hole 161. A second connection hole 1132 of the biopsy forceps head 11 and a second connection hole 1132 of the second biopsy forceps head 12 .

That is to say, the pull rod 16 is simultaneously connected to the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 through the transmission shaft 17 . In this way, when the pulling rod 16 moves in the preset direction or the direction opposite to the preset direction, it can drive the connecting portion 113 of the first biopsy forceps 1 and the connecting portion 113 of the second biopsy forceps 1 to rotate relative to the forceps head seat 15 at the same time, which is convenient for Clamp or loosen tissue 2.

In addition, when the pull rod 16 drives the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 to rotate at the same time, the receiving portion 112 of the first biopsy forceps head 11 and the receiving portion 112 of the second biopsy forceps head 12 The part 112 can stop the tissue 2 in a preset direction at the same time, so as to better prevent the tissue 2 from leaking in the preset direction.

It should be noted that, with reference to FIGS. 2 , 4 and 5 , when the pull rod 16 moves in the preset direction, the connecting pin 14 rotates relative to the pliers head seat 15 and moves along the extending direction of the strip hole 1131 , the first Both the connecting portion 113 of the biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 are rotated relative to the forceps head seat 15 . In this way, not only can the clamping portion 111 of the first biopsy forceps head 11 and the clamping portion 111 of the second biopsy forceps head 12 clamp the tissue 2 during the rotation process relative to the forceps head seat 15 , but also the first The receiving portion 112 of the first biopsy forceps head 11 and the receiving portion 112 of the second biopsy forceps head 12 push up against the tissue 2 during the rotation relative to the forceps head base 15 , thereby preventing excessive tissue 2 from leaking out in the preset direction accommodating space 114 .

With reference to FIG. 2 , the aforementioned “upward” direction can be understood as a direction opposite to the preset direction.

This embodiment also provides an endoscope system, which includes an endoscope and the biopsy forceps 1 mentioned above, and has all the functions of the biopsy forceps 1 . It can be understood that the endoscope may include an image sensor, an optical lens, an illuminating device, etc., the specific structure and working principle of which are involved in the related art, and will not be described in detail here.

To sum up, the working principle of the biopsy forceps 1 provided in this embodiment:

The biopsy forceps 1 is inserted into the human body through the endoscopic forceps channel, and the staff operates the pull rod 16 at the proximal end, so that the pull rod 16 moves in a preset direction, and the connection part 113 of the first biopsy forceps head 11 and the second biopsy forceps head 12 are connected The portion 113 moves relative to the forceps head seat 15 at the same time, the clamping portion 111 of the first biopsy forceps head 11 and the clamping portion 111 of the second biopsy forceps head 12 are relatively close to each other, the clamping space 18 is gradually reduced, and the first biopsy forceps head The clamping portion 111 of the first biopsy forceps head 11 and the clamping portion 111 of the second biopsy forceps head 12 clamp the human tissue 2 at the same time. At the same time, the tissue 2 in the accommodating space 114 is stopped in a preset direction, thereby effectively preventing too much tissue 2 from leaking out of the accommodating space 114 in the preset direction, controlling the amount of the tissue 2 to be clamped, and reducing the tearing of the tissue 2 risk, reduce bleeding, and shorten operative time.

To sum up, the biopsy forceps 1 provided in this embodiment at least has the following beneficial effects, for example:

The receiving parts 112 of the first biopsy forceps head 11 and the second biopsy forceps head 12 can stop the tissue 2 in a preset direction at the same time, and the receiving parts 112 can prevent too much tissue 2 from leaking out of the accommodating space 114 along the preset direction, thereby The amount of forceps of the tissue 2 can be controlled, and the risk of tearing the tissue 2 can be reduced, thereby reducing the amount of bleeding and shortening the operation time.

The first biopsy forceps head 11 and the second biopsy forceps head 12 can stop the tissue 2 in a preset direction without adding additional stop parts, which can simplify the structure of the biopsy forceps 1 and reduce the manufacturing cost.

The groove 1111 can accommodate part of the tissue 2 to ensure the amount of tissue 2 to be clamped, so that the amount of tissue 2 to be clamped will not be too small to affect subsequent pathological studies.

The receiving portion 112 protrudes from the edge of the opening 1112 , and the receiving portion 112 does not occupy the inner space of the groove 1111 .

The connecting portion 113 and the receiving portion 112 are integrally formed into a plate-like structure, which is convenient for processing and manufacturing.

The receiving portion 112 is provided between both ends of the cutting portion 115 , and the receiving portion 112 does not affect the cutting operation of the cutting portion 115 .

The connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 are dislocated, and the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 are in the process of rotating , there will be no mutual interference, and the respective rotation ranges will be increased.

The first plane 1133 is parallel to the second plane, which reduces the probability of contact between the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 relative to the forceps head seat 15 during rotation.

The symmetry plane of the clamping portion 111 of the first biopsy forceps head 11 coincides with the symmetry plane of the clamping portion 111 of the second biopsy forceps head 12 , so that the connecting portion 113 of the first biopsy forceps head 11 and the When the connecting portion 113 is dislocated, it will not cause dislocation between the clamping portion 111 of the first biopsy forceps head 11 and the clamping portion 111 of the second biopsy forceps head 12 , so that it will not affect the clamping portion 111 of the first biopsy forceps head 11 . The clamping operation of the tissue 2 by the clamping part 111 and the clamping part 111 of the second biopsy forceps head 12 .

The gasket 13 is arranged between the connecting part 113 of the first bioptome head 11 and the connecting part 113 of the second bioplier head 12 , reducing the connection between the connecting part 113 of the first bioplier head 11 and the second bioplier head 12 The friction between the parts 113 ensures the smoothness of rotation.

The bar-shaped hole 1131 has an arc-shaped inner wall corresponding to the rotation trajectory of the connecting portion 113 , so that the connecting pin 14 is not easily caught in the bar-shaped hole 1131 .

One end of the pull rod 16 is rotatably connected to the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 at the same time, and the pull rod 16 can simultaneously drive the connecting portion 113 of the first biopsy forceps head 11 and the second biopsy forceps. The connecting portion 113 of the head 12 is rotated relative to the forceps head seat 15 .

The above descriptions are only specific embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A biopsy forceps head for cooperating with a forceps head seat (15), characterized in that the biopsy forceps head comprises a clamping part (111), a receiving part (112) and a connecting part (113) that are connected to each other , the connecting portion (113) is used for rotatably connecting with the forceps head seat (15), and a space for accommodating the tissue (2) is defined between the clamping portion (111) and the receiving portion (112). An accommodating space (114), wherein the receiving portion (112) is used to stop the tissue (2) along a preset direction, and the predetermined direction is that the receiving portion (112) to the connecting portion ( 113) direction. 2 . The biopsy forceps head according to claim 1 , wherein a groove ( 1111 ) is recessed on one side of the clamping portion ( 111 ), and the inner wall of the groove ( 1111 ) is connected to the receiving portion. 3 . The space between (112) forms the accommodation space (114). 3 . The biopsy forceps head according to claim 2 , wherein the groove ( 1111 ) is provided with an opening ( 1112 ) through which the tissue ( 2 ) enters, and the receiving portion ( 112 ) extends from the opening. 4 . The edge of (1112) protrudes, or the receiving portion (112) protrudes from the inner wall of the groove (1111). 4 . The biopsy forceps head according to claim 3 , wherein a U-shaped cutting portion ( 115 ) is protruded from the edge of the opening ( 1112 ), and the receiving portion ( 112 ) is provided on the cutting portion ( 112 ). 5 . between the two ends of the part (115). 5. A biopsy forceps, characterized by comprising a forceps head seat (15) and the biopsy forceps head according to any one of claims 1-4, wherein the connecting portion (113) is rotatably connected to the forceps head Seat (15). 6. The biopsy forceps according to claim 5, wherein the biopsy forceps head comprises a first biopsy forceps head (11) and a second biopsy forceps head (12), the first biopsy forceps head (11) The clamping portion (111) of the first biopsy forceps head (11) and the clamping portion (111) of the second biopsy forceps head (12) are arranged opposite to each other, so that the accommodation space (114) of the first biopsy forceps head (11) is opposite to the second biopsy forceps head (11). The accommodating spaces (114) of the two biopsy forceps heads (12) together form a clamping space (18) for clamping the tissue (2); Both the connecting portion (113) of the first biopsy forceps head (11) and the connecting portion (113) of the second biopsy forceps head (12) are rotatably connected to the forceps head seat (15) to enlarge Or reduce the clamping space (18). 7 . The biopsy forceps according to claim 6 , wherein the connecting portion ( 113 ) of the first biopsy forceps head ( 11 ) and the connecting portion ( 113 ) of the second biopsy forceps head ( 12 ) are dislocated. 8 . Arrangement, the biopsy forceps further comprises a gasket (13) mounted on the forceps head seat (15), the gasket (13) is located at the connection part (113) of the first biopsy forceps head (11) and the connecting portion (113) of the second biopsy forceps head (12), and the opposite sides of the gasket (13) respectively abut against the connecting portion (113) of the first biopsy forceps head (11). 113) and the connecting part (113) of the second biopsy forceps head (12). 8. The biopsy forceps according to claim 6, characterized in that, the biopsy forceps further comprises a connecting pin (14), the connecting portion (113) is provided with a bar-shaped hole (1131), and the connecting pin (14) ) is rotatably connected with the pliers head seat (15), and the other part of the connecting pin (14) is movably matched with the strip hole (1131); The connecting pin (14) is used to rotate relative to the pliers head seat (15) when the connecting portion (113) rotates relative to the pliers head seat (15), and rotates along the strip hole (15). The extending direction of 1131) moves relative to the connecting portion (113). 9 . The biopsy forceps according to claim 8 , wherein the strip-shaped hole ( 1131 ) has an arc-shaped inner wall corresponding to the rotation trajectory of the connecting portion ( 113 ). 10 . 10. An endoscope system, comprising the biopsy forceps according to any one of claims 5-9.

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