CN118000819B

CN118000819B - Lymph clamp

Info

Publication number: CN118000819B
Application number: CN202410410965.1A
Authority: CN
Inventors: 刘丽娜; 潘兵辉; 于庆田; 张忠英
Original assignee: Hongxin Kechuang Biotechnology Beijing Co ltd
Current assignee: Hongxin Kechuang Biotechnology Beijing Co ltd
Priority date: 2024-04-08
Filing date: 2024-04-08
Publication date: 2024-07-09
Anticipated expiration: 2044-04-08
Also published as: CN118000819A

Abstract

The present disclosure provides a lymphatic clamp, comprising a pair of clamp bodies, a pivot and an elastic body, each clamp body is provided with a clamp head, a clamp handle and a pivot portion, wherein at least part of each clamp body is composed of a cladding made of a deformable high polymer material and a core made of a deformable metal material, the core penetrates the clamp head and the clamp handle in sequence to be suitable for the clamp body to form a rigidity, so that the clamp handle can be deformed in an angle-adjustable manner relative to the clamp head, and the deformed clamp handle can overcome the elastic force to drive the pair of clamp bodies to separate the clamp heads from each other through the pivot. According to the present disclosure, the flexible portion is utilized to avoid damage to the lymphatic vessel or the blood vessel by the clamp, and the supporting portion is utilized to enable the clamp holder not only to adjust the angle relative to the clamp head, but also to provide sufficient rigidity at the corresponding angle position to ensure normal operation of the clamp head, so that one lymphatic clamp can be suitable for operation at different positions, and the flexibility of using the lymphatic clamp is greatly improved.

Description

Lymph clamp

Technical Field

The present disclosure relates to the field of medical devices, and in particular, to a lymphatic clamp.

Background

The lymphatic clamp is used for clamping lymphatic fluid in lymphatic vessels, can also be used for stopping bleeding of blood vessels, an operator presses the clamping handle by a clamp or bare hand, drives the clamping head to separate and align the lymphatic vessels or the blood vessels, then releases the pressing force, and the clamping head applies the clamping force under the action of the spring. However, when some parts are operated, the problem that the operating space of the clamping handle is narrow and the operator cannot conveniently clamp the parts. In the prior art, a plurality of lymphatic clamps with clamp handles at different angles are generally prepared, and proper lymphatic clamps are flexibly selected according to the operation part, but the method has the advantages that the preparation cost of the lymphatic clamps is high, and the operation efficiency is reduced in the selection process.

Disclosure of Invention

The present disclosure provides a lymphatic clip.

Specifically, the present disclosure is implemented by the following technical scheme:

embodiments of the present disclosure provide a lymphatic clip comprising:

A pair of clamp bodies, each clamp body is provided with a clamping head, a clamping handle and a pivoting part, the clamping heads are connected with the clamping handles, and the pivoting parts are arranged in the area, close to the clamping heads, of the clamping handles;

a pivot shaft for connecting the pivot portions to pivot the pair of clip bodies about the pivot shaft;

The elastic body is arranged between the pair of clamp bodies and is used for providing elastic force for clamping the clamping heads of the pair of clamp bodies;

Wherein at least part of each clamp body is composed of a cladding layer made of a deformable high polymer material and a core part made of a deformable metal material, the core part sequentially penetrates through the clamp heads and the clamp handles to be suitable for the clamp bodies to form rigidity, so that the clamp handles can be deformed in an angle adjustable manner relative to the clamp heads, and the clamp handles after deformation can overcome the elastic force to drive the pair of clamp bodies to separate the clamp heads from each other through the pivoting.

According to the embodiment of the disclosure, the clamp body is formed by the cladding made of the deformable high polymer material and the core made of the deformable metal material, the flexibility of the cladding and the supporting function of the core are combined, the flexibility is utilized to prevent the lymphatic or blood vessels from being damaged by the clamp, the supporting performance is utilized to enable the clamp holder to not only adjust the angle relative to the clamp head, but also provide enough rigidity at the corresponding angle position to ensure the normal work of the clamp head, so that one lymphatic clamp can be suitable for operation at different positions, and the use flexibility of the lymphatic clamp is greatly improved.

In some embodiments, the cross-sectional shape of the collet has an arcuate transition in the region of the clamping face that tapers in width; by setting the area close to the clamping surface as an arc transition, the damage to the lymphatic or vascular vessel by the two sides of the clamping head is avoided.

In some embodiments, the core comprises a main core and an additional core arranged in parallel, the main core being disposed in a central region of the collet cross-section, the additional core being disposed in a corner region of the collet cross-section remote from the clamping surface; the main core part provides main rigidity for the clamp body, and the auxiliary core part provides auxiliary rigidity for arc transition areas on two sides of the clamp head, so that the balance of the clamp head on the clamping force in the width direction is ensured.

In some embodiments, the length of the additional core in the collet region is the same as the main core and the length of the additional core in the grip region is less than the main core; because the clamping handle area does not need to be provided with a lateral arc transition, the use of the auxiliary core part can be reduced, and the cost is reduced.

In some embodiments, the cladding is made of silica gel and the core is made of stainless steel; the silica gel can provide good flexibility, avoids adding lymphatic or blood vessels, and the stainless steel can provide enough rigidity and good deformability, so that the angle adjusting effect of the clamping handle is ensured.

In some embodiments, the core is stiffer in the region of the collet and grip connection than in other regions; after the angle of the clamping handle is adjusted relative to the chuck, the main stress area is concentrated in the connecting area of the clamping handle and the chuck, so that the rigidity of the core part is improved in the connecting area, and the angle adjusting effect of the clamping handle is ensured.

In some embodiments, the pair of clamp bodies are formed with a limit structure at corresponding positions to be suitable for setting the limit position of the angle-adjustable deformation; through setting up limit structure, set for clamp holder angle adjustment scope, avoid leading to the clamp body rupture because of the excessive adjustment of angle to and unable effective drive chuck separation, influence lymph clamp normal use.

In some embodiments, the limiting structure includes a first limiting portion formed by extending a pivoting portion of one of the clip bodies, and a second limiting portion formed by extending a pivoting portion of the other of the clip bodies, the first limiting portion being formed with a first vertical convex arc and a horizontal convex arc that extend continuously, the second limiting portion being formed with a second vertical convex arc and a horizontal concave arc that extend continuously, the first vertical convex arc and the second vertical convex arc being used to match with the horizontal concave arc and the horizontal convex arc, respectively, to set limit positions of the angularly adjustable deformation; on the one hand, the first spacing portion and the second spacing portion directly extend from the pivot portion to form, have structurally utilized the structure heel of pivot portion, have avoided additionally setting up limit structure alone, on the other hand, between the arc structure through frictional force spacing in the initial stage of contact, turn into through supporting tight power spacing after continuing to contact, whole spacing in-process spacing effort increases gradually, and spacing impression is just soft when making the angle adjustment operation.

In some embodiments, the front end side shape of the collet has an arcuate transition in the region of the clamping surface that tapers in length; the arc transition avoids lymphatic or vascular injuries.

In some embodiments, the core is bent away from the clamping surface at the arcuate transition region; the core bending region provides supplemental support to the arcuate transition region.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic view of a lymphatic clip in an embodiment of the present disclosure;

FIG. 2 is a schematic view of a first use state of a lymphatic clip in an embodiment of the disclosure;

FIG. 3 is a schematic view of a second use state of the lymphatic clip in an embodiment of the disclosure;

FIG. 4 is a schematic cross-sectional view of a collet in an embodiment of the disclosure;

FIG. 5 is an enlarged view of a portion of FIG. 1 at A;

fig. 6 is a partial cross-sectional view of a lymphatic clamp in an embodiment of the disclosure.

Reference numerals:

10: a clamp body; 11: a chuck; 12: a clamping handle; 13: a pivoting portion;

20: a pivot;

30: a cladding layer;

40: a core; 401: bending; 41: a main core; 42: a core is attached;

51: a first limit part; 511: a first vertical convex arc; 512: a transverse convex arc; 52: a second limit part; 521: a second vertical convex arc; 522: and a transverse concave arc.

Detailed Description

The present disclosure will now be discussed with reference to several embodiments. It should be understood that these embodiments are discussed only in order to enable a person of ordinary skill in the art to better understand and thus practice the present disclosure, and are not meant to imply any limitation on the scope of the present disclosure.

As used herein, the term "comprising" and variants thereof are to be interpreted as meaning "including but not limited to" open-ended terms; the terms "embodiment" and "one embodiment" are to be interpreted as "at least one embodiment"; the term "another embodiment" is to be interpreted as "at least one other embodiment"; the terms "first," "second," and the like, may refer to different or the same object; the term "disposed" is not limited to a direct connection or an indirect connection, nor to a particular manner of connection. Other explicit and implicit definitions are also possible below.

Some specific values or ranges of values may be referred to in the following description. It should be understood that these numerical values and numerical ranges are merely exemplary, which may be advantageous to put the concepts of the present disclosure into practice. However, the description of these examples is not intended to limit the scope of the present disclosure in any way. These values or ranges of values may be set otherwise, depending on the particular application and requirements.

As described above, the prior art uses the lymphatic clips to accommodate different sites, making the lymphatic clips expensive, and the selection process reduces the efficiency of the procedure. The above-described problems are at least partially solved by the lymphatic clamps as set forth in the embodiments of the present disclosure. The structure and operation principle of the lymphatic clamp according to an exemplary embodiment of the present disclosure will be described below with reference to fig. 1 to 6. As shown in fig. 1, the lymphatic clamp of the embodiment of the present disclosure generally includes a pair of clamp bodies 10, a pivot shaft 20, and an elastic body, the pivot shaft 20 connecting the pivot portions 13 of the pair of clamp bodies 10 to pivot the pair of clamp bodies 10 about the pivot shaft 20, the elastic body may be a spring or a coil spring, and the elastic body provides an elastic force to cause the clamp bodies 10 to clamp a lymphatic or blood vessel.

The clamp body 10 comprises a clamp head 11, a clamp handle 12 and a pivoting part 13, wherein the clamp head 11 is integrally or separately connected with the clamp handle 12, the pivoting part 13 is formed in a protruding manner in a region of the clamp handle 12 close to the clamp head 11, and when the pair of clamp bodies 10 perform pivoting motion, one side of a pivot 20 is the clamp handle 12, and the other side is the clamp head 11 and a small part of the clamp handle 12.

In one embodiment, the entire collet 11 is comprised of the cladding 30 and the core 40, i.e., the collet 11, grip 12, and pivot 13 are all cladding 30 embedded cores 40, and in another embodiment, all or a portion of the collet 11 and grip 12 may be cladding 30 embedded cores 40. In fact, during operation of the clamp 10, most areas of the grip 12 other than the ends, except the ends of the collet 11, require the provision of the embedded core 40 to increase the support rigidity.

In one embodiment, the cladding 30 is made of a deformable polymer material, so that the cladding 30 is flexible to avoid hurting lymphatic or blood vessels, and the cladding 30 is softer when the clamping handle 12 is adjusted in angle, so that the labor of an operator can be saved. Illustratively, the deformable polymeric material may be a silicone gel, more preferably a medical grade silicone gel.

In another embodiment, the core 40 is made of a deformable metal material, which is rigid enough to ensure that the clamp body 10 can bear operation driving force and elastic force at any angle, and flexible enough to ensure that the lymphatic clamp can be repeatedly adjusted for multiple times without breaking, so that the service life of the lymphatic clamp is prolonged. Illustratively, the deformable metallic material may be stainless steel, more preferably medical grade stainless steel.

In one embodiment, the core 40 may be a single metal strip, with the silicone being cast around the outside of the strip to form the clip 10. In this case, a metal strip is arranged in the central area of the cross section of the collet 11 in order to balance the forces in all directions in the cross section and to sufficiently carry the reaction forces of the clamping surfaces.

In another embodiment, as shown in fig. 4, in order to avoid the edge corner of the clamping head 11 from damaging the lymphatic or blood vessels, the cross-section of the clamping head 11 is configured to be an arc transition with gradually reduced width in the area of the clamping surface, and the arc transition is in contact with the lymphatic or blood vessels to provide protection for the lymphatic or blood vessels.

In one embodiment, it is preferable to increase the width of the collet 11 in order to reduce the clamping pressure of the clamping surface against the lymphatic or blood vessels, but the increased width of the collet 11 results in one core 40 of the central region not providing sufficient support for the clamping surface, so that, as shown in fig. 4, in addition to providing a main core 41 in the central region of the cross section of the collet 11, an additional core 42 is provided in the corner region of the cross section of the collet 11 remote from the clamping surface, which has the additional function that the additional core 42 provides sufficient support for the collet 11, the grip 12 to avoid the compression deformation of the collet 10 when an operator presses the collet 10 in the opposite direction of the clamping surface for the operation of the angular adjustment.

In one embodiment, as described above, the auxiliary core portion 42 has one of the main functions of providing rigidity to the widthwise outer side of the clamping surface and the other function of providing rigidity to the operator's pressing portion, so that the auxiliary core portion 42 is provided in the region of the chuck 11 and the grip 12 near the chuck 11 more effectively. In this case, the main core 41 and the auxiliary core 42 are provided in the region of the grip 11 to have the same length, and the auxiliary core 42 is provided in the region of the grip 12 to have a smaller coverage, which is advantageous in that the cost is reduced and the weight of the lymphatic clip is reduced.

In one embodiment, the grip handle 12 and the chuck 11 are connected to the region where the grip handle is required to have the greatest force-bearing capability during use of the chuck 10, because the operator needs to press on the connection region during the adjustment of the angle, and the repeated bending 401 is more resistant to the strength of the region, and in addition, the core 40 is in the bent 401 state during the clamping and unclamping of the chuck 11, so that the grip body 10 needs to be provided with greater rigidity to ensure the pivoting against the elastic force. In summary, the region rigidity needs to be strengthened, and the region core 40 is illustratively set to have a larger cross-sectional area.

In one embodiment, the operator adjusts the angle of grip 12 relative to chuck 11 without limiting the range of angles that can be adjusted, which may cause core 40 to break, and excessive angular adjustment increases the difficulty of driving chuck body 10 to pivot. Therefore, as shown in fig. 5, limit structures are provided at the corresponding positions of the pair of clip bodies 10, respectively, and when the pair of clip bodies 10 are pivoted, the limit structures are mutually blocked, thereby defining the angular adjustment limit positions.

In one embodiment, the limiting structure is provided in the area between the pivot 20 and the clamping head 11, on the one hand, the clamping head 11 is not expected to deform when adjusting the angle of the clamping handles 12, so as to avoid falling off of the clamped lymphatic or blood vessels, and on the other hand, during the adjustment of the angle, only the clamping body 10 structure of the pivot 20 towards one side of the clamping head 11 is relatively close to each other, and the relative movement between the pair of clamping handles 12 during the angle adjustment is more sensitive.

In one embodiment, as shown in fig. 5, the limiting structure includes a first limiting portion 51 formed by extending the pivot portion 13 of one of the clip bodies 10, and a second limiting portion 52 formed by extending the pivot portion 13 of the other of the clip bodies 10, the first limiting portion 51 is formed with a first vertical convex arc 511 and a horizontal convex arc 512 extending continuously, the second limiting portion 52 is formed with a second vertical convex arc 521 and a horizontal concave arc 522 extending continuously, and the first vertical convex arc 511 and the second vertical convex arc 521 are used for matching with the horizontal concave arc 522 and the horizontal convex arc 512 respectively to be stopped so as to be suitable for setting the limiting position of the angle-adjustable deformation. So set up, on the one hand, first spacing portion 51 and second spacing portion 52 directly extend from pivot portion 13 and form, have structurally utilized the structure heel of pivot portion 13, have avoided additionally setting up limit structure alone, on the other hand, between the arc structure through frictional force spacing in the initial stage of contact, turn into through supporting tight power spacing after continuing to contact, spacing effort gradually increases in the whole spacing in-process, makes spacing impression rigid soft during the angle adjustment operation.

In one embodiment, as shown in fig. 6, the front side shape of the collet 11 has an arcuate transition in the region of the clamping surface that tapers in length, the arcuate transition avoiding lymphatic or vascular trauma.

In some embodiments, the core 40 presents a bend 401 in the arcuate transition region in a direction away from the clamping face, the region of the core 40 bend 401 providing additional support to the arcuate transition region.

When the lymphatic clamp according to the embodiment of the disclosure is used, as shown in fig. 2, the symmetrical center lines of the pair of clamping handles 12 are overlapped with the symmetrical center lines of the pair of clamping heads 11, when the angle of the clamping handles 12 needs to be adjusted, an operator presses the connecting area of the clamping handles 12 and the clamping heads 11 by using force F1 and pushes the clamping handles 12 in opposite directions at the same time, under the action of the resultant force of the force F1 and the force F2, the symmetrical center lines of the clamping handles 12 change in angle relative to the symmetrical center lines of the clamping heads 11, as shown in fig. 3, microscopic material compression occurs at a bending part of Fang Gabing in the drawing, and microscopic material stretching occurs at a bending part of the clamping handles 12 below in the drawing, so that the pivot 20, the pivot part 13 and the pair of clamping handles 12 are ensured to be basically integrally moved, and the angle adjustment of the clamping handles 12 is conveniently realized.

Any references to directions and orientations in the description of the embodiments herein are for convenience only and should not be construed as limiting the scope of the invention in any way. The description of the preferred embodiments will refer to combinations of features, which may be present alone or in combination, and the invention is not particularly limited to the preferred embodiments. The scope of the invention is defined by the claims.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. A lymphatic clamp, comprising:

A pair of clamp bodies (10), each clamp body is provided with a clamping head (11), a clamping handle (12) and a pivoting part (13), the clamping heads (11) are connected with the clamping handles (12), and the pivoting parts (13) are arranged in the area, close to the clamping heads (11), of the clamping handles (12);

a pivot shaft (20) for connecting the pivot portions (13) to pivot the pair of clip bodies (10) about the pivot shaft (20);

an elastic body arranged between the pair of clamp bodies (10) for providing elastic force for clamping the clamp heads (11) of the pair of clamp bodies (10) to each other;

Wherein at least part of each clamp body (10) is composed of a cladding layer (30) made of a deformable high polymer material and a core (40) made of a deformable metal material, the core (40) sequentially penetrates through the clamp heads (11) and the clamp handles (12) to be suitable for forming rigidity for the clamp bodies (10), so that the clamp handles (12) can be deformed in an angle adjustable manner relative to the clamp heads (11) in a pivoting plane of a pair of clamp bodies around a pivot (20), and the clamp handles (12) after deformation can overcome the elastic force to drive the clamp bodies (10) to separate the clamp heads (11) from each other through the pivot;

The pair of clamp bodies (10) are provided with limiting structures at corresponding positions, the limiting structures comprise a first limiting part (51) formed by extending a pivoting part (13) of one clamp body (10) and a second limiting part (52) formed by extending a pivoting part (13) of the other clamp body (10), the first limiting part (51) is provided with a first vertical convex arc (511) and a horizontal convex arc (512) which extend continuously, the second limiting part (52) is provided with a second vertical convex arc (521) and a horizontal concave arc (522) which extend continuously, the first vertical convex arc (511) is used for being matched with a stop with the horizontal concave arc (522), and the second vertical convex arc (521) is used for being matched with the horizontal convex arc (512) so as to be suitable for setting the limiting position of the angle-adjustable deformation.

2. The lymphatic clamp according to claim 1, characterized in that the cross-sectional shape of the clamping head (11) has an arc-shaped transition in the region of the clamping surface with a gradual decrease in width.

3. The lymphatic clamp according to claim 2, characterized in that the core (40) comprises a main core (41) and an auxiliary core (42) arranged in parallel, the main core (41) being arranged in a central region of the cross-section of the collet (11), the auxiliary core (42) being arranged in a corner region of the cross-section of the collet (11) remote from the clamping surface.

4. A lymphatic clamp as claimed in claim 3, characterized in that the additional core (42) has the same length in the region of the collet (11) as the main core (41) and in that the additional core (42) has a smaller length in the region of the grip (12) than the main core (41).

5. The lymphatic clamp of claim 1, characterized in that said envelope (30) is made of silica gel and said core (40) is made of stainless steel.

6. The lymphatic clamp of claim 1, characterized in that the core (40) is stiffer in the region of the connection of the collet (11) and grip (12) than in the other regions.

7. The lymphatic clamp according to claim 1, characterized in that the front end side shape of the clamping head (11) is in an arc transition of decreasing length in the region of the clamping surface.

8. The lymphatic clamp of claim 7, characterized in that said core (40) is bent (401) in the direction away from said clamping surface at said arcuate transition region.