CN111920459A

CN111920459A - Biopsy forceps head, biopsy forceps and endoscopic system

Info

Publication number: CN111920459A
Application number: CN202010952140.4A
Authority: CN
Inventors: 黄云凤; 丁小良; 李玉茜
Original assignee: Micro Tech Nanjing Co Ltd
Current assignee: Micro Tech Nanjing Co Ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2020-11-13

Abstract

The embodiment of the invention provides a biopsy forceps head, a biopsy forceps and an endoscopic system, and relates to the field of medical instruments. The biopsy forceps comprise the biopsy forceps head, the endoscopic system comprises the biopsy forceps, and the biopsy forceps head, the biopsy forceps and the endoscopic system can control the forceps taking amount of tissues, reduce the risk of tearing the tissues, reduce the bleeding amount and shorten the operation time.

Description

Biopsy forceps head, biopsy forceps and endoscopic system

Technical Field

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

Background

With the widespread use of endoscopic techniques, physicians began using endoscopes to sample the living tissues of the digestive tract and respiratory tract, providing direct evidence for disease diagnosis. Biopsy forceps are widely used in clinical practice. The working principle of the biopsy forceps is that the biopsy forceps are inserted into a human body through an endoscope channel, and a proper amount of sample tissues are taken by the forceps to carry out subsequent pathological research.

At present, in the process of actual sampling, the sampling amount of the clinical biopsy forceps cannot be controlled, so that the tissue sampled by the clinical biopsy forceps is too much, the risk of tearing exists, appropriate data cannot be provided for pathological analysis, subsequent pathological diagnosis is influenced, the operation time is prolonged, and the pain of a patient is increased.

Disclosure of Invention

It is an object of the present invention to provide a biopsy forceps head, a biopsy forceps and an endoscopic system which effectively ameliorate the above mentioned technical problems.

The embodiment of the invention is realized by the following steps:

in a first aspect, an embodiment of the present invention provides a biopsy forceps head, configured to cooperate with a forceps head holder, where the biopsy forceps head includes a clamping portion, a receiving portion, and a connecting portion, the connecting portion is configured to be rotatably connected with the forceps head holder, and an accommodating space for accommodating tissue is defined between the clamping portion and the receiving portion, where the receiving portion is configured to stop the tissue along a preset direction, and the preset direction is a direction from the receiving portion to the connecting portion.

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

In an alternative embodiment, the recess is provided with an opening for the tissue to enter, the bolster protruding from an edge of the opening, the bolster protruding from an inner wall of the recess.

In an alternative embodiment, the edge of the opening is further convexly provided with a U-shaped cutting portion, and the bearing portion is arranged between two ends of the cutting portion.

In a second aspect, embodiments of the present invention provide a biopsy forceps, including a forceps head base and the biopsy forceps head of any one of the foregoing embodiments, wherein the connecting portion is rotatably connected to the forceps head base.

In an alternative embodiment, the biopsy forceps head comprises a first biopsy forceps head and a second biopsy forceps head, the clamping portion of the first biopsy forceps head and the clamping portion of the second biopsy forceps head being arranged opposite to each other, such that the receiving space of the first biopsy forceps head and the receiving space of the second biopsy forceps head together form a clamping space for clamping the tissue;

the connecting part of the first biopsy forceps head and the connecting part of the second biopsy forceps head are rotatably connected to the forceps head seat so as to expand or reduce the clamping space.

In an alternative embodiment, the connecting portion of the first biopsy forceps head and the connecting portion of the second biopsy forceps head are arranged in a staggered manner, so that the connecting portion of the first biopsy forceps head and the connecting portion of the second biopsy forceps head do not contact with each other during rotation relative to the forceps head seat.

In an alternative embodiment, a side surface of the connecting portion of the first biopsy forceps head adjacent to the second biopsy forceps head is a first plane, a side surface of the connecting portion of the second biopsy forceps head adjacent to the first biopsy forceps head is a second plane, and the first plane and the second plane are parallel.

In an alternative embodiment, the biopsy forceps further comprises a spacer mounted on the head base, the spacer is located between the connecting portion of the first biopsy forceps head and the connecting portion of the second biopsy forceps head, and two opposite sides of the spacer abut against the connecting portion of the first biopsy forceps head and the connecting portion of the second biopsy forceps head, respectively.

In an optional embodiment, the biopsy forceps further comprise a connecting pin, the connecting portion is provided with a strip-shaped hole, a part of the connecting pin is rotatably connected with the forceps head seat, and another part of the connecting pin is movably matched with the strip-shaped hole;

the connecting pin is used for rotating relative to the tong head seat when the connecting part rotates relative to the tong head seat and moving relative to the connecting part along the extending direction of the strip-shaped hole.

In an alternative embodiment, the strip-shaped hole has an arc-shaped inner wall corresponding to a rotation locus 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 movably connected to the forceps head seat along the preset direction and a direction opposite to the preset direction, so as to drive the connecting portion to rotate relative to the forceps head seat and the pull rod simultaneously.

In a third aspect, embodiments of the present invention provide an endoscopic system comprising biopsy forceps as described in any one of the preceding embodiments.

The beneficial effects of the embodiment of the invention include, for example:

the embodiment of the invention provides a biopsy forceps head which comprises a clamping part, a bearing part and a connecting part which are connected with each other, wherein the connecting part is rotatably connected with a forceps head seat, and an accommodating space for accommodating tissues is defined between the clamping part and the bearing part. It can be understood that when the biopsy forceps head is used for sampling tissues, the accommodating space can accommodate a certain amount of tissues, and the bearing part can stop the tissues in a preset direction, wherein the preset direction is the direction from the bearing part to the connecting part. Thus, the receiving part can prevent excessive tissues from leaking out of the accommodating space along the preset direction, so that the tissue clamping and taking amount can be controlled, the risk of tearing the tissues is reduced, the bleeding amount is reduced, and the operation time is shortened.

The embodiment of the invention also provides the biopsy forceps, which comprise the biopsy forceps head and have all functions of the biopsy forceps head. The biopsy forceps also have the advantages of controlling the forceps taking amount of tissues, reducing the risk of tearing the tissues, reducing the bleeding amount and shortening the operation time.

Embodiments of the present invention also provide an endoscopic system including the above-mentioned biopsy forceps, and having all the functions of the biopsy forceps. The endoscopic system also has the beneficial effects of controlling the tissue clamping amount, reducing the risk of tearing the tissue, reducing the bleeding amount and shortening the operation time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a biopsy forceps provided in an embodiment of the present invention at a first viewing angle;

FIG. 2 is a schematic structural view of a biopsy forceps for grasping tissue according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a biopsy forceps from a second viewing angle according to an embodiment of the present invention;

FIG. 4 is an exploded view of a bioptome according to an embodiment of the present invention;

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

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

fig. 7 is a schematic structural diagram of a forceps head seat according to an embodiment of the invention;

FIG. 8 is a schematic structural diagram of a gasket according to an embodiment of the present invention;

fig. 9 is a schematic structural view of the pull rod and the transmission shaft provided in the embodiment of the present invention.

Icon: 1-biopsy forceps; 11-a first biopsy forceps head; 111-a clamping portion; 1111-grooves; 1112-an opening; 1113-reference flour; 112-a receiving portion; 113-a connecting portion; 1131-strip-shaped holes; 1132 — second connection hole; 1133 — first plane; 114-a receiving space; 115-a cutting section; 12-a second biopsy forceps head; 13-a gasket; 131-a first connection hole; 14-a connecting pin; 15-a jaw seat; 151-first lug; 152-a second lug; 153-seat body; 154-installation space; 155-first mounting hole; 156-second mounting hole; 16-a pull rod; 161-drive hole; 17-a drive shaft; 18-a clamping space; 2-organization; 3-reference plane.

Detailed Description

In order to make the objects, 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 drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present embodiment provides a biopsy forceps 1, the biopsy forceps 1 is inserted into a human body through an endoscopic channel of an endoscope, the biopsy forceps 1 is provided with a holding space 18, and the biopsy forceps 1 can clamp a human tissue 2 through the holding space 18 for a subsequent pathology study.

Referring to fig. 1-3, in the present embodiment, the biopsy forceps 1 includes a forceps base 15 and two biopsy forceps heads, and for convenience of description, the two biopsy forceps heads are respectively named as a first biopsy forceps head 11 and a second biopsy forceps head 12.

Clamping space 18 is located between first biopsy forceps head 11 and second biopsy forceps head 12, both biopsy forceps head 11 and second biopsy forceps head 12 being rotatably connected to forceps head holder 15, it being understood that clamping space 18 can be enlarged or reduced during rotation of first biopsy forceps head 11 and second biopsy forceps head 12 relative to forceps head holder 15, thereby clamping or unclamping tissue 2.

In the present embodiment, the first biopsy forceps head 11 and the second biopsy forceps head 12 have the same structure, and a specific structure of the first biopsy forceps head 11 will be described in detail later, and the structure of the second biopsy forceps head 12 may refer to the structure of the first biopsy forceps head 11.

Referring to fig. 4 and 5 in combination with fig. 2, the first biopsy forceps head 11 includes a clamping portion 111, a receiving portion 112 and a connecting portion 113 connected to each other, the connecting portion 113 is rotatably connected to the forceps head holder 15, a receiving space 114 for receiving the tissue 2 is defined between the clamping portion 111 and the receiving portion 112, and the receiving portion 112 can stop the tissue 2 in a predetermined direction.

In this embodiment, the predetermined direction is a direction from the receiving portion 112 to the connecting portion 113. I.e. in the direction indicated by arrow a in fig. 2.

In this way, the receiving portion 112 can prevent an excessive amount of the tissue 2 from leaking out of the accommodating space 114 in the predetermined direction, thereby controlling the amount of the tissue 2 to be nipped and taken, reducing the risk of tearing the tissue 2, reducing the amount of bleeding, and shortening the operation time.

It should be noted that, in the present embodiment, the first biopsy forceps head 11 and the second biopsy forceps head 12 can stop the tissue 2 in the predetermined direction, and additional stop parts are not required to be added, so that the structure of the biopsy forceps 1 can be simplified, and the manufacturing cost can be reduced.

When the first biopsy forceps head 11 and the second biopsy forceps head 12 are mounted on the forceps head base 15, the holding portion 111 of the first biopsy forceps head 11 and the holding portion 111 of the second biopsy forceps head 12 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 holding space 18.

In actual use, the clamping space 18 is gradually reduced and the tissue 2 is gradually clamped as 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. During the relative distancing of the clamping portion 111 of the first biopsy forceps head 11 and the clamping portion 111 of the second biopsy forceps head 12, the clamping space 18 gradually increases and the tissue 2 is gradually released.

Referring to fig. 5, in the present embodiment, a recess 1111 is recessed at one side of the clamping portion 111 of the first biopsy forceps head 11, and the space between the inner wall of the recess 1111 and the receiving portion 112 forms the receiving space 114.

It will be appreciated that the recess 1111 is capable of receiving a portion of the tissue 2 when clamping the tissue 2, ensuring a clamping amount of the tissue 2 such that the clamping amount of the tissue 2 is not too small to affect subsequent pathological studies.

In other embodiments, the clamping portion 111 may have a flat plate structure, or the clamping portion 111 may have a saw-tooth structure.

Referring to fig. 5, in the present embodiment, the recess 1111 has an opening 1112 for allowing the tissue 2 to enter, and the receiving portion 112 protrudes from an edge of the opening 1112. In this way, the receiving portion 112 does not occupy the internal space of the recess 1111 and does not interfere with the accommodation of the tissue 2 by the recess 1111.

Specifically, referring to fig. 5, the edge of the opening 1112 is provided with 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 protrudes from the reference surface 1113 and extends in a direction away from the groove 1111.

Of course, in other embodiments, the bearing 112 may protrude from the inner wall of the recess 1111.

In the present 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 are integrally formed as a plate-shaped structure, which is convenient to manufacture.

Referring to fig. 5, in the embodiment, a U-shaped cutting portion 115 is further protruded from an edge of the opening 1112, the cutting portion 115 is a sheet-shaped structure, and when the cutting portion 115 acts on the tissue 2, the tissue 2 is conveniently cut off from the human body.

It should be noted that the receiving portion 112 is disposed between two end portions of the cutting portion 115, so that the receiving portion 112 does not affect the cutting operation of the cutting portion 115, and after the cutting portion 115 cuts the tissue 2, the receiving portion 112 can stop the tissue 2 in the preset direction in time, so as to prevent the tissue 2 from leaking out of the accommodating space 114 along the preset direction.

In this embodiment, the "U-shape" does not require the cutting portion 115 to have an absolutely U-shaped structure, but may have a structure similar to the U-shape, for example: c-shape, Jiong-shape, etc.

In the present 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 base 15. Taking fig. 2 as an example, when the coupling portion 113 of the first biopsy forceps head 11 rotates clockwise and the coupling portion 113 of the second biopsy forceps head 12 rotates counterclockwise, the holding space 18 is gradually reduced. When the connecting portion 113 of the first movable jaw rotates counterclockwise and the connecting portion 113 of the second biopsy jaw 12 rotates clockwise, the holding space 18 gradually expands.

With reference to fig. 1, in the present embodiment, the connecting portion 113 of the first biopsy forceps head 11 is disposed offset from the connecting portion 113 of the second biopsy forceps head 12.

It will be appreciated that the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 do not come into contact or collide with each other during rotation relative to the forceps head carrier 15. In this way, the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 do not interfere with each other during rotation, the respective rotation ranges can be increased, and the tissue 2 can be clamped more tightly by the clamping space 18.

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

Referring to fig. 6, in the present embodiment, the clamping portion 111 is a plane-symmetric pattern, the symmetric plane of the clamping portion 111 is taken as a reference plane 3, and the first plane 1133 is parallel to the reference plane 3. In the present 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 to face each other, the symmetrical plane of the clamping portion 111 of the first biopsy forceps head 11 and the symmetrical plane of the clamping portion 111 of the second biopsy forceps head 12 overlap each other, 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 displaced from each other. Furthermore, 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 disposed in a displaced manner, the grasping portion 111 of the first biopsy forceps head 11 and the grasping portion 111 of the second biopsy forceps head 12 do not become displaced, and the grasping operation of the tissue 2 by the grasping portion 111 of the first biopsy forceps head 11 and the grasping portion 111 of the second biopsy forceps head 12 is not affected.

Referring to fig. 3 and 4, in the present embodiment, the biopsy forceps 1 further includes a spacer 13, the spacer 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 two opposite sides of the spacer 13 respectively 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.

Thus, due to the blocking action of the spacer 13, the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 do not rub against each other and do not interfere with each other when they rotate relative to the forceps head base 15.

Referring to fig. 4 and 5, in the present embodiment, the biopsy forceps 1 further includes a connecting pin 14, a strip-shaped hole 1131 is disposed on the connecting portion 113 of the first biopsy forceps head 11, a part of the connecting pin 14 is rotatably connected to the forceps head seat 15, and another part of the connecting pin 14 is movably engaged with the strip-shaped hole 1131.

It will be appreciated that when the connecting portion 113 of the first biopsy forceps head 11 is rotated relative to the forceps head base 15, the connecting pin 14 is rotated relative to the forceps head base 15 and moves in the extending direction of the strip-shaped hole 1131.

Referring to fig. 4, 5, 7 and 8, in the present embodiment, the binding clip base 15 is provided with an installation space 154, a first installation hole 155 and a second installation hole 156, the spacer 13, the connecting portion 113 of the first biopsy binding clip 11 and the connecting portion 113 of the second biopsy binding clip 12 are all installed in the installation space 154, and the first installation hole 155 and the second installation hole 156 are both communicated with the installation space 154.

With reference to fig. 3 and 8, in the present embodiment, the spacer 13 is provided with a first connecting hole 131, and the connecting pin 14 passes through the first mounting hole 155, the strip-shaped hole 1131 of the first biopsy forceps head 11, the first connecting hole 131, the strip-shaped hole 1131 of the second biopsy forceps head 12, and the second mounting hole 156 in sequence. 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 base 15 via the connecting pin 14.

In the present embodiment, the elongated hole 1131 of the first biopsy forceps head 11 has an arc-shaped inner wall corresponding to the rotation locus of the connecting portion 113 of the first biopsy forceps head 11. In this way, when the connecting portion 113 of the first biopsy forceps head 11 rotates relative to the forceps head holder 15, the connecting pin 14 is less likely to be caught in the strip-shaped hole 1131 of the first biopsy forceps head 11, and the smoothness of the rotation of the connecting portion 113 of the first biopsy forceps head 11 can be ensured.

Similarly, in the present embodiment, the strip-shaped hole 1131 of the second biopsy forceps head 12 is provided with an arc-shaped inner wall corresponding to the movement locus of the connecting portion 113 of the second biopsy forceps head 12.

Specifically, referring to fig. 7, in the present embodiment, the forceps head holder 15 includes a holder body 153, a first supporting lug 151 and a second supporting lug 152, one end of the first supporting lug 151 and one end of the second supporting lug 152 are both connected to the holder body 153, a first mounting hole 155 is disposed on the first supporting lug 151, a second mounting hole 156 is disposed on the second supporting lug 152, the first supporting lug 151 and the second supporting lug 152 are disposed at an interval, a cavity is disposed in the holder body 153, and a space between the first supporting lug 151 and the second supporting lug 152 and the cavity in the holder body 153 are communicated to form the mounting space 154.

Referring to fig. 3, 4 and 9, in the present embodiment, the biopsy forceps 1 further includes a pull rod 16, and 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.

In this embodiment, the pull rod 16, when moving in the predetermined direction or in a direction opposite to the predetermined direction, can simultaneously bring the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 into rotation relative to the forceps head base 15.

Referring to fig. 2, when the pull rod 16 is moved in a predetermined 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 pull rod 16 is moved in a direction opposite to the predetermined direction, the coupling portion 113 of the first biopsy forceps head 11 rotates counterclockwise, the coupling portion 113 of the second biopsy forceps head 12 rotates clockwise, the holding space 18 is enlarged, and the tissue 2 is gradually released.

It is understood that, in the present embodiment, the direction opposite to the preset direction is the direction indicated by the arrow B in fig. 2.

Specifically, referring to fig. 5 and 9, in the present 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 a second connecting hole 1132, the pull rod 16 is provided with a transmission hole 161, the transmission hole 161 is rotatably sleeved with a transmission shaft 17, one end of the pull rod 16 penetrates into the mounting space 154 of the forceps head seat 15, and two ends of the transmission shaft 17 are rotatably connected to the second connecting hole 1132 of the first biopsy forceps head 11 and the second connecting hole 1132 of the second biopsy forceps head 12, respectively.

In other words, the pull rod 16 is in driving connection with the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 simultaneously via the drive shaft 17. In this way, when the pull rod 16 moves in the preset direction or the direction opposite to the preset direction, the connecting portion 113 of the first biopsy forceps 1 and the connecting portion 113 of the second biopsy forceps 1 can be driven to rotate relative to the forceps head seat 15 at the same time, so as to facilitate clamping or loosening of the tissue 2.

Moreover, when the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 are simultaneously rotated by the pull rod 16, the receiving portion 112 of the first biopsy forceps head 11 and the receiving portion 112 of the second biopsy forceps head 12 can simultaneously stop the tissue 2 in the predetermined direction, so that the tissue 2 is better prevented from leaking in the predetermined direction.

It should be noted that, when the pull rod 16 moves in the predetermined direction, the connecting pin 14 rotates relative to the head base 15 and moves along the extending direction of the bar-shaped hole 1131, and both 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 head base 15, in conjunction with fig. 2, 4, and 5. In this way, not only can the gripping portion 111 of the first biopsy forceps head 11 and the gripping portion 111 of the second biopsy forceps head 12 grip the tissue 2 during rotation relative to the forceps head holder 15, but also the receiving portion 112 of the first biopsy forceps head 11 and the receiving portion 112 of the second biopsy forceps head 12 can be caused to abut up against the tissue 2 during rotation relative to the forceps head holder 15, thereby preventing excessive tissue 2 from leaking out of the accommodating space 114 in the preset direction.

In connection with fig. 2, the aforementioned "upward" direction may be understood as a direction opposite to the preset direction.

The present embodiment also provides an endoscopic system comprising an endoscope and the above-mentioned biopsy forceps 1, and having all the functions of the biopsy forceps 1. It will be understood that the endoscope may include an image sensor, an optical lens, an illumination device, etc., and the specific structure and operation thereof are all referred to in the related art and will not be described in detail herein.

In summary, the working principle of the biopsy forceps 1 provided by the present embodiment is as follows:

the biopsy forceps 1 is inserted into a human body through an endoscopic forceps channel, a worker operates the pull rod 16 at a near end to enable the pull rod 16 to move along a preset direction, the connecting part 113 of the first biopsy forceps head 11 and the connecting part 113 of the second biopsy forceps head 12 simultaneously move relative to the forceps head seat 15, the clamping part 111 of the first biopsy forceps head 11 and the clamping part 111 of the second biopsy forceps head 12 are relatively close, the clamping space 18 is gradually reduced, the clamping part 111 of the first biopsy forceps head 11 and the clamping part 111 of the second biopsy forceps head 12 simultaneously clamp human tissue 2, meanwhile, the bearing part 112 of the first biopsy forceps head 11 and the bearing part 112 of the second biopsy forceps head 12 simultaneously stop the tissue 2 in the accommodating space 114 in the preset direction, so that excessive tissue 2 is effectively prevented from leaking out of the accommodating space 114 along the preset direction, the clamping amount of the tissue 2 can be controlled, and the risk of tearing of the tissue 2 is reduced, reduce the amount of bleeding and shorten the operation time.

In summary, the biopsy forceps 1 provided in this embodiment has at least the following beneficial effects, for example:

the receiving portions 112 of the first biopsy forceps head 11 and the second biopsy forceps head 12 can stop the tissue 2 in the preset direction at the same time, and the receiving portions 112 can prevent the excessive tissue 2 from leaking out of the accommodating space 114 in the preset direction, so that the amount of clamping the tissue 2 can be controlled, the risk that the tissue 2 is torn is reduced, the bleeding amount is reduced, and the operation time is shortened.

The first biopsy forceps head 11 and the second biopsy forceps head 12 can stop the tissue 2 in the preset direction, additional stop parts are not needed, the structure of the biopsy forceps 1 can be simplified, and the manufacturing cost is reduced.

The recess 1111 can accommodate a portion of the tissue 2, and ensure the amount of tissue 2 to be clamped, so that the amount of tissue 2 to be clamped is not too small to affect subsequent pathological studies.

The socket 112 protrudes from the edge of the opening 1112, and the socket 112 does not occupy the inner space of the recess 1111.

The connecting part 113 and the bearing part 112 are integrally formed into a plate-shaped structure, so that the processing and the manufacturing are convenient.

The receiving portion 112 is provided between both end portions 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 arranged in a staggered manner, and the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 do not interfere with each other in the rotating process, so that the rotating ranges of the first biopsy forceps head 11 and the second biopsy forceps head 12 are enlarged.

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

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 connecting portion 113 of the second biopsy forceps head 12 are displaced, and the displacement between the clamping portion 111 of the first biopsy forceps head 11 and the clamping portion 111 of the second biopsy forceps head 12 is not caused, so that the clamping operation of the clamping portion 111 of the first biopsy forceps head 11 and the clamping portion 111 of the second biopsy forceps head 12 on the tissue 2 is not affected.

The spacer 13 is provided between the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12, so that friction between the connecting portion 113 of the first biopsy forceps head 11 and the connecting portion 113 of the second biopsy forceps head 12 is reduced, and smoothness of rotation is ensured.

The bar-shaped hole 1131 has an arc-shaped inner wall corresponding to the rotation locus 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, and the pull rod 16 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 to rotate relative to the forceps head base 15.

The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a biopsy binding clip for cooperate with pincers head (15), its characterized in that, biopsy binding clip includes interconnect's clamping part (111), accepting part (112) and connecting portion (113), connecting portion (113) be used for with pincers head (15) rotate to be connected, clamping part (111) with inject between accepting part (112) and be used for holding accommodation space (114) of tissue (2), wherein, accepting part (112) are used for along predetermineeing the direction right tissue (2) end the position, predetermineeing the direction and do accepting part (112) arrive the direction of connecting portion (113).

2. Biopsy forceps head according to claim 1, characterized in that one side of the clamping part (111) is recessed with a recess (1111), the space between the inner wall of the recess (1111) and the socket (112) forming the receiving space (114).

3. Biopsy forceps head according to claim 2, characterized in that the recess (1111) is provided with an opening (1112) for the entry of the tissue (2), the bolster (112) protruding from the edge of the opening (1112) or the bolster (112) protruding from the inner wall of the recess (1111).

4. Biopsy forceps head according to claim 3, characterized in that the edge of the opening (1112) is also convexly provided with a U-shaped cutting portion (115), the receiving portion (112) being arranged between the two ends of the cutting portion (115).

5. Biopsy forceps, comprising a forceps head holder (15) and a biopsy forceps head according to any one of claims 1-4, wherein the connecting portion (113) is rotatably connected to the forceps head holder (15).

6. The biopsy forceps according to claim 5, characterized in that the biopsy forceps head comprises a first biopsy forceps head (11) and a second biopsy forceps head (12), the clamping portion (111) of the first biopsy forceps head (11) and the clamping portion (111) of the second biopsy forceps head (12) being arranged opposite one another such that the receiving space (114) of the first biopsy forceps head (11) and the receiving space (114) of the second biopsy forceps head (12) together form a clamping space (18) for clamping the tissue (2);

the connecting part (113) of the first biopsy forceps head (11) and the connecting part (113) of the second biopsy forceps head (12) are rotatably connected to the forceps head seat (15) to expand 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) is offset from the connecting portion (113) of the second biopsy forceps head (12), the biopsy forceps further comprising a spacer (13) mounted on the forceps head base (15), the spacer (13) being 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 opposite sides of the spacer (13) abutting 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.

8. The biopsy forceps according to claim 6, further comprising a connecting pin (14), wherein the connecting portion (113) is provided with a strip-shaped hole (1131), a middle portion of the connecting pin (14) is rotatably connected with the forceps head seat (15), and another portion of the connecting pin (14) is movably matched with the strip-shaped hole (1131);

the connecting pin (14) is used for rotating relative to the pliers head seat (15) when the connecting part (113) rotates relative to the pliers head seat (15) and moving relative to the connecting part (113) along the extending direction of the strip-shaped hole (1131).

9. The bioptome of claim 8, wherein the slot (1131) has an arcuate inner wall corresponding to a rotational trajectory of the connecting portion (113).

10. An endoscopic system comprising the bioptome of any one of claims 5-9.