CN219183947U - Surgical ligature clamp - Google Patents

Abstract

The present disclosure relates to a surgical ligation clip, comprising: a first clamping arm provided with a latch structure at a first distal section of the first clamping arm, the latch structure comprising a deformable section; a second clamping arm; and a connecting section, wherein the first and second clamp arms are movable relative to each other between an open configuration and a closed configuration. The closing process of the surgical ligation clip from the open configuration to the closed configuration comprises a first stage in which the second distal section of the second clamping arm is able to pass the latch structure unobstructed and close towards the first clamping arm, and a second stage in which the deformable section of the latch structure is able to buckle towards the second outer surface of the second intermediate section of the second clamping arm, such that upon completion of the closing process, the latch structure is able to effect a closing lock of the first and second clamping arms.

Description

Surgical ligature clamp

Technical Field

The present disclosure relates to the technical field of surgical medical instruments. In particular, the present disclosure relates to a surgical ligating clip.

Background

Ligation of tissue (e.g., blood vessels, lymph nodes, nerves, fallopian tubes, or heart tissue, etc.) is a common procedure in many surgical procedures, especially minimally invasive procedures. Surgical ligating clips have advantages in terms of reduced surgical time, especially where the application of sutures during endoscopic surgery is limited in space and visibility. The construction of surgical ligating clips varies depending on the materials (e.g., metals and polymers) they use, with metal ligating clips exhibiting a simpler shape than polymeric ligating clips. The surgical ligating clip should be capable of providing a strong, secure and durable grip and be capable of withstanding the applied forces to avoid sliding axially and radially along the ligating tissue.

However, it has been found through experimental studies that the surgical ligature clip sometimes slips, which may cause problems such as displacement of the ligature clip, ligature failure, and even ligature failure.

Disclosure of Invention

It is an object of the present disclosure to provide an improved surgical ligation clip for solving the above-mentioned problems of the prior art.

According to an aspect of the present disclosure, there is provided a surgical ligation clip comprising: a first clamp arm comprising a first proximal section, a first distal section, and a first intermediate section between the first proximal section and the first distal section, the first intermediate section comprising a first outer surface and a first inner surface, a latch structure provided at the first distal section of the first clamp arm, the latch structure comprising a deformable section; a second clamping arm comprising a second proximal section, a second distal section, and a second intermediate section between the second proximal section and the second distal section, the second intermediate section comprising a second outer surface and a second inner surface; and a connecting section connecting the first and second proximal sections, wherein the first and second clamp arms are movable relative to each other between an open configuration and a closed configuration, and the first and second inner surfaces are configured to ligate tissue when in the closed configuration, and a closing process of the surgical ligation clip transitioning from the open configuration to the closed configuration includes a first stage in which a second distal section of the second clamp arm is able to pass through the latch structure unobstructed and close toward the first clamp arm, and a second stage in which a deformable section of the latch structure is able to buckle toward the second distal section, such that upon completion of the closing process, the latch structure is able to effect a closing lock of the first and second clamp arms.

In one embodiment of the surgical ligating clip, the surgical ligating clip is made of metal.

In one embodiment of the surgical ligating clip, the surgical ligating clip is made of a polymer.

In one embodiment of the surgical ligating clip, the connecting section is an arcuate connecting section.

In one embodiment of the surgical ligation clip, the first inner surface of the first clamping arm, the second inner surface of the second clamping arm, or the inner surface of the connecting section comprises a surface pattern structure configured to increase the contact area of the surgical ligation clip with tissue.

In one embodiment of the surgical ligation clip, the first inner surface of the first clamping arm, the second inner surface of the second clamping arm and the inner surface of the connecting section each comprise a surface pattern structure configured to increase the contact area of the surgical ligation clip with tissue.

In one embodiment of the surgical ligation clip, the latch structure comprises a curved section and a tapered section, the curved section being interposed between the tapered section and the first intermediate section, and the curved section, the first intermediate section and the first proximal section having the same cross-sectional shape and size, wherein the deformable section is comprised of one or both of the curved section and the tapered section.

In one embodiment of the surgical ligating clip, the curved section is an arcuate curved section.

In one embodiment of the surgical ligating clip, the latch structure comprises a straight section, a tapered section, and a plastic hinge between the straight section and the tapered section, the straight section being perpendicular to the first intermediate section, and the straight section, the first intermediate section, and the first proximal section having the same cross-sectional shape and size, wherein the deformable section is comprised of the tapered section.

In one embodiment of the surgical ligating clip, the deformable section has a structural strength that is less than a structural strength of other portions of the first clamping arm to facilitate said bending deformation during a second stage of the closing process of the surgical ligating clip.

The beneficial effects of the embodiment of the disclosure are that: by providing the latch structure at the distal section of one of the clamp arms, the ligating clamp can be prevented from sliding in the radial direction after the ligating clamp is closed, whereby problems such as displacement of the ligating clamp, poor ligation, even ligation failure, and the like can be avoided. In addition, by providing the surface pattern structure on the inner surface of the ligating clip, the contact area of the surgical ligating clip with the tissue can be increased, whereby it can be further ensured that the ligating clip achieves firm and reliable ligating.

Drawings

Various objects, features and advantages of the present disclosure will become more apparent from the following description of the preferred embodiments thereof, taken in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, like reference numerals refer to the same or similar parts throughout. It should be understood that the drawings are presented merely as exemplary illustrations of the present disclosure. Modifications and variations may be made by those of ordinary skill in the art in light of the drawings to arrive at other possible embodiments.

Fig. 1 is a perspective view of an open configuration of a surgical ligation clip according to the present disclosure.

Fig. 2 is a side view of an open configuration of a surgical ligation clip according to the present disclosure.

Fig. 3 is a perspective view of a closed configuration of a surgical ligating clip according to the present disclosure.

Fig. 4 is a schematic view of a surface pattern structure on an inner surface of a surgical ligating clip according to the present disclosure.

Fig. 5 is a schematic view of a first embodiment of a latch structure of a surgical ligating clip according to the present disclosure.

Fig. 6 is a schematic view of a second embodiment of a latch structure of a surgical ligating clip according to the present disclosure.

Fig. 7A-7E are schematic illustrations of a closing process of a surgical ligation clip according to the disclosure.

List of reference numerals:

1-a first clamping arm; 2-a second clamping arm; 3-connecting sections; a 4-latch structure; 11-a first inner surface; 12-a second inner surface; 13-surface pattern structure; 41-a curved section; 41A-straight sections; 42-a tapered section; 43: a plastic hinge.

Detailed Description

The present disclosure will be described below with reference to the accompanying drawings, which show preferred embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; indeed, the embodiments described below are intended to more fully convey the disclosure to those skilled in the art and to fully convey the scope of the disclosure. It should also be appreciated that the features of the embodiments disclosed herein can be combined in various ways to provide yet additional embodiments. Those skilled in the art may suitably modify the detailed configuration without departing from the spirit of the present disclosure.

It should be understood that throughout the drawings, like reference numerals refer to like elements. In the drawings, the size of certain features may be modified for clarity.

Unless otherwise indicated, terms (including technical and scientific terms) used herein should have meanings commonly understood by one of ordinary skill in the art to which this disclosure relates. The terms "comprising" and "including" as used in the specification and claims should be interpreted as open-ended meaning, that is, the terms "comprising" and "including" should be interpreted to be synonymous with the terms "at least including" or "comprising" unless otherwise noted.

Unless otherwise indicated, the terms "upper," "lower," "top," "bottom," and the like as used in this disclosure are merely relative orientations of the device and its associated components in the illustrated state.

The term "distal" as used in this disclosure refers to a side distal from an operator of a surgical medical instrument, and the term "proximal" refers to a side proximal to an operator of a surgical medical instrument, unless otherwise indicated.

It should be understood that the terminology used in the description is for the purpose of describing particular embodiments only, and is not intended to be limiting of the disclosure. Well-known functions or constructions may not be described in detail for brevity and/or clarity.

The present disclosure provides a surgical ligation clip (which may also be referred to as a vascular clip, tissue clip, etc.) that clamps and secures tissue (e.g., blood vessel, lymph node, nerve, fallopian tube, cardiac tissue, etc.) in a locked position using a medical instrument (clip applier) that mates therewith. The surgical ligating clip may be made of metal (e.g., absorbable or non-absorbable metal) whereby the gripping effect is achieved by macroscopic plastic deformation of the ligating clip. The metal ligating clip may be manufactured by, for example, a process such as stamping. In addition, the surgical ligating clips of the present disclosure may also be made of a polymer.

Fig. 1 and 2 illustrate an open configuration of a surgical ligation clip according to the present disclosure. In addition, fig. 3 illustrates a closed configuration of a surgical ligation clip according to the present disclosure. As shown in fig. 1 to 3, a surgical ligation clip according to the present disclosure includes a first clamping arm 1, a second clamping arm 2, and a connecting section 3.

As shown, the first clamping arm 1 comprises a first proximal section, a first distal section and a first intermediate section between the first proximal section and the first distal section. The first intermediate section comprises a first outer surface and a first inner surface 11. Preferably, the first intermediate section is of horizontal design as shown. Furthermore, a latch structure 4 is provided at the first distal section of the first clamping arm 1, wherein the latch structure 4 comprises a deformable section. The second clamping arm 2 comprises a second proximal section, a second distal section and a second intermediate section between the second proximal section and the second distal section. The second intermediate section comprises a second outer surface and a second inner surface 12. The connecting section 3 connects the first proximal section of the first clamping arm 1 and the second proximal section of the second clamping arm 2. Preferably, the connection section 3 may be an arcuate connection section as shown. However, it will be understood by those skilled in the art that the connecting section 3 may be any other form of connecting section as long as it is capable of bending to a deformed shape in order to achieve the closed configuration of the surgical ligating clip.

The first and second clamping arms 1, 2 of the surgical ligation clip according to the present disclosure are movable relative to each other between an open configuration (see fig. 1 and 2) and a closed configuration (see fig. 3), and the first inner surface 11 of the first clamping arm 1 and the second inner surface of the second clamping arm 2 are configured to ligate tissue when in the closed configuration. In particular, the closing process of the surgical ligation clip transitioning from an open configuration to a closed configuration includes a first stage and a second stage. In a first phase, the second distal section of the second clamping arm 2 can pass the latch structure 4 unobstructed and close towards the first clamping arm 1 (see fig. 7B and 7C). Subsequently in the second phase, the deformable section of the latch structure 4 can be bent and deformed towards the second distal section of the second clamping arm 2, so that upon completion of the closing process, the latch structure 4 can effect a closing lock of the first and second clamping arms 1, 2 (see fig. 7D and 7E).

Fig. 4 is a schematic view of a surface pattern structure 13 on an inner surface of a surgical ligating clip according to the present disclosure. As shown in fig. 4, the first inner surface 11 of the first clamping arm 1, the second inner surface of the second clamping arm 2, or the inner surface of the connecting section 3 may include a surface pattern 13 configured to increase the contact area of the surgical ligation clip with tissue. Preferably, the first inner surface 11 of the first clamping arm 1, the second inner surface of the second clamping arm 2 and the inner surface of the connecting section 3 may all comprise such a surface pattern structure 13. It will be appreciated by those skilled in the art that the surface pattern 13 shown in fig. 4 is merely one possible example, and in fact, the surface pattern on the inner surface of the surgical ligation clip may comprise a variety of patterns, so long as it is capable of increasing the contact area of the surgical ligation clip with tissue.

An important improvement of the surgical ligating clip according to the present disclosure is that by providing a latch structure at the distal section of one of the clamping arms of the ligating clip, the ligating clip can be prevented from sliding radially after closure of the ligating clip, whereby problems of displacement of the ligating clip, ligating failure, even ligating failure, etc. can be avoided. In addition, by providing the surface pattern structure on the inner surface of the surgical ligation clip, the contact area of the ligation clip with the tissue can be increased, whereby it can be further ensured that the ligation clip achieves firm and reliable ligation.

Fig. 5 is a schematic view of a first embodiment of a latch structure of a surgical ligating clip according to the present disclosure. As shown in fig. 5, the latch structure 4 includes a curved section 41 and a tapered section 42. The curved section 41 is interposed between the tapered section 42 and the first intermediate section of the first clamping arm 1 for adjusting the inclination of the tapered section 42 to a direction towards the second clamping arm 2, while facilitating the application of a load by the clip applier to the surgical ligation clip that enables the latch structure 4 to close. The curved section 41 may be an arcuate curved section as shown.

Preferably, the curved section 41 of the latch structure 4, the first intermediate section and the first proximal section of the first clamping arm 1 have the same cross-sectional shape and size. In the case shown in fig. 5, the deformable section of the latch structure 4 may be constituted by one or both of the curved section 41 and the tapered section 42. It is further preferred that the structural strength of the deformable section is smaller than the other parts of the first clamping arm 1 in order to achieve a bending deformation of the deformable section towards the second distal section of the second clamping arm 2 in the second phase of the closing process of the surgical ligation clip.

Fig. 6 is a schematic view of a second embodiment of a latch structure of a surgical ligating clip according to the present disclosure. As shown in fig. 6, the latch structure 4 includes a straight section 41A, a tapered section 42, and a plastic hinge 43 between the straight section 41A and the tapered section 42. The straight section 41A is preferably perpendicular to the first intermediate section of the first clamping arm 1. Similarly, the straight section 41A is configured to adjust the inclination of the tapered section 42 to a direction toward the second clamp arm 2 while facilitating the clip applier to apply a load to the surgical ligating clip that enables the latch structure 4 to close.

Preferably, the straight section 41A of the latch structure 4, the first intermediate section and the first proximal section of the first clamping arm 1 have the same cross-sectional shape and size. In the case shown in fig. 6, the deformable section of the latch structure 4 may be constituted by a tapered section 42. Similar to the first embodiment described above, the structural strength of the deformable section is smaller than the other parts of the first clamping arm 1 in order to achieve a bending deformation of the deformable section towards the second distal section of the second clamping arm 2 in the second phase of the closing process of the surgical ligation clip. In addition, the plastic hinge 43 is capable of folding and deforming, thereby facilitating the bending and deforming described above.

Fig. 7A-7E are schematic illustrations of a closing process of a surgical ligation clip according to the disclosure. As shown in fig. 7A, a surgical ligation clip according to the present disclosure is in an initial open configuration. Fig. 7B and 7C show a first stage of the closing process in which the first and second clamping arms 1, 2 of the ligation clip are gradually closed until they come into contact with each other. Thanks to the dimensioning of the latch structure 4, the first clamping arm 1 and the second clamping arm 2 do not collide and collide, so that the second clamping arm 2 can be closed avoiding the latch structure 4. Fig. 7D and 7E illustrate a second stage of the closing process in which the surgical ligating clip according to the present disclosure is gradually flattened in its entirety until deformation is complete and a closed configuration of the ligating clip is formed. In this process, the latch structure 4 is closed by bending deformation of the deformable section, thereby forming a latch, so that the ligature clip can be prevented from sliding in the radial direction after the ligature clip is closed, and the problems of displacement, poor ligature, even ligature failure, and the like of the ligature clip can be avoided.

The scope of the disclosure should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The above embodiments are merely exemplary embodiments of the present disclosure and are not intended to limit the present disclosure, the scope of which is defined by the claims. Various modifications and equivalents of the disclosure that may occur to persons skilled in the art are intended to be included within the spirit and scope of the disclosure.

Claims (10)

1. A surgical ligation clip, the surgical ligation clip comprising:

a first clamping arm comprising a first proximal section, a first distal section, and a first intermediate section between the first proximal section and the first distal section, the first intermediate section comprising a first outer surface and a first inner surface, a latch structure provided at the first distal section of the first clamping arm, the latch structure terminating in a deformable section;

a second clamping arm comprising a second proximal section, a second distal section, and a second intermediate section between the second proximal section and the second distal section, the second intermediate section comprising a second outer surface and a second inner surface; and

a connection section connecting the first proximal section and the second proximal section,

wherein the first and second clamping arms are movable relative to each other between an open configuration and a closed configuration, and the first and second inner surfaces are configured to ligate tissue when in the closed configuration, and

wherein the closing process of the surgical ligation clip transitioning from the open configuration to the closed configuration includes a first stage in which the second distal section of the second clamping arm is able to pass unobstructed through the latch structure and close toward the first clamping arm, and a second stage in which the deformable section of the latch structure is able to buckle and deform toward the second distal section such that upon completion of the closing process, the latch structure is able to effect a closed lock of the first and second clamping arms.

2. The surgical ligating clip of claim 1, wherein the surgical ligating clip is made of metal.

3. The surgical ligating clip of claim 1, wherein the surgical ligating clip is made of a polymer.

4. The surgical ligating clip of claim 1, wherein the connecting section is an arcuate connecting section.

5. The surgical ligating clip of any one of claims 1-4, wherein a first inner surface of the first clamping arm, a second inner surface of the second clamping arm, or an inner surface of the connecting section comprises a surface pattern structure configured to increase a contact area of the surgical ligating clip with tissue.

6. The surgical ligating clip of any one of claims 1-4, wherein the first inner surface of the first clamping arm, the second inner surface of the second clamping arm, and the inner surface of the connecting section each comprise a surface pattern structure configured to increase the contact area of the surgical ligating clip with tissue.

7. The surgical ligating clip of claim 6, wherein the latch structure comprises a curved section and a tapered section, the curved section interposed between the tapered section and the first intermediate section, and the curved section, the first intermediate section, and the first proximal section have the same cross-sectional shape and size, wherein the deformable section is comprised of one or both of the curved section and the tapered section.

8. The surgical ligating clip of claim 7, wherein the curved section is an arcuate curved section.

9. The surgical ligating clip of claim 6, wherein the latch structure comprises a straight section, a tapered section, and a plastic hinge between the straight section and the tapered section, the straight section being perpendicular to the first intermediate section, and the straight section, the first intermediate section, and the first proximal section having the same cross-sectional shape and size, wherein the deformable section is comprised of the tapered section.

10. The surgical ligating clip of any one of claims 7 to 9, wherein the deformable section has a structural strength that is less than a structural strength of other portions of the first clamping arm so as to facilitate said bending deformation during a second stage of a closing process of the surgical ligating clip.

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