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CN-122003208-A - Surgical clip

CN122003208ACN 122003208 ACN122003208 ACN 122003208ACN-122003208-A

Abstract

The present disclosure relates to a surgical clip (2) consisting of a closed ring with a first (4) and a second (6) gripping section and two elastically deformable articulation sections (8), each having a base section (5, 7) and a plurality of gripping teeth (10) located between two circumferential ends (12, 14) of each of the gripping sections (4, 6) and extending substantially parallel to each other and away from the respective base section (5, 7), the articulation sections being arranged beside the circumferential ends (12, 14) of the gripping sections (4, 6), wherein the articulation sections (8) have a curvature extending inwards of the ring such that the circumferential ends (12, 14) of the articulation sections (8) and the gripping sections (4, 6) face each other at least partially, such that at least one of the circumferential ends (12, 14) of the gripping sections (4, 6) has a gap between the articulation sections and the circumferential ends (12, 14) of the gripping sections, and the gripping sections (4, 6), wherein the at least one circumferential ends (12, 14) of the gripping sections (4, 8) have a circumferential spacing between the circumferential ends (12, 14) of the gripping sections (4, 6), the circumferential ends (12, 18) extending towards the circumferential ends (12, 18) of the gripping sections (6) 6) The gap between the circumferential ends (12, 14) of (a) takes a wave geometry or is configured to undulate for compressing tissue. Furthermore, the invention relates to a system for applying a surgical clip (2) at a position in a body cavity of a patient for compressing body tissue.

Inventors

  • CAPUTO ANTONIO
  • Mark O Shure

Assignees

  • 欧华内镜股份有限公司

Dates

Publication Date
20260508
Application Date
20231030

Claims (15)

  1. 1. A surgical clip (2) consisting of a closed loop with a first (4) and a second (6) gripping section and two elastically deformable articulation sections (8), which have a base section (5, 7) and a plurality of gripping teeth (10) respectively, which are located between two circumferential ends (12, 14) of each of the gripping sections (4, 6) and extend substantially parallel to each other and away from the respective base section (5, 7), which are arranged beside the circumferential ends (12, 14) of the gripping sections (4, 6), wherein the articulation sections (8) have a curvature extending inwards of the loop such that the circumferential ends (12, 14) of the articulation sections (8) and the gripping sections (4, 6) face each other at least partially, so that a gap is constructed between the circumferential ends of the articulation sections and the gripping sections, characterized by, At least one, preferably both, circumferential ends (12, 14) of the gripping sections (4, 6) have rounded or rounded pressing teeth (16, 17, 18, 19, 20) which extend in the direction of the hinge section (8) in such a way that the gap between the hinge section (8) and the circumferential ends (12, 14) of the gripping sections (4, 6) takes on a wave geometry or is configured in a wave shape for compressing tissue.
  2. 2. Surgical clip (2) according to claim 1, characterized in that the plurality of rounded or circular pressing teeth (16, 17, 18, 19, 20) are arranged on the circumferential end (12, 14) in such a way that a recess is created between each two pressing teeth (16, 17, 18, 19, 20) of the respective gripping section (4, 6), so that a wave geometry or wave shape of the pressing teeth (16, 17, 18, 19, 20) arranged one after the other is formed.
  3. 3. Surgical clip (2) according to claim 1 or 2, characterized in that the two circumferential ends (12) of the first gripping section (4) each have two of the pressing teeth (16, 17) and/or the two circumferential ends (14) of the second gripping section (6) each have at least one of the pressing teeth (18, 19, 20).
  4. 4. Surgical clip (2) according to any one of the preceding claims, characterized in that the circumferential ends (12, 14) of the two gripping sections (4, 6) extend completely or almost completely across the entire circumference of the curved articulation section (8).
  5. 5. Surgical clip (2) according to any one of the preceding claims, characterized in that the first gripping section (4) has at least four gripping teeth (10) and the second gripping section (6) has at least five gripping teeth (10).
  6. 6. Surgical clip (2) according to any one of the preceding claims, characterized in that the gripping teeth (10) have an additional blade or spike (11) at their tip for anchoring in the tissue, respectively, which blade or spike is configured as an extension of the tip.
  7. 7. Surgical clip (2) according to any of the preceding claims, characterized in that the squeezing teeth (16, 17, 18, 19, 20) do not have spikes (11) or angular sections or tips.
  8. 8. Surgical clip (2) according to any one of the preceding claims, characterized in that the elastically deformable articulation section (8) has rounded articulation section-side pressing teeth (24) which are configured complementarily to the pressing teeth (16, 17, 18, 19, 20) of the circumferential-side ends (12, 14) of the grip sections (4, 6) to configure the wave geometry or undulation.
  9. 9. Surgical clip (2) according to one of the preceding claims, characterized in that the tooth edges (25) of the gripping teeth (10) and/or the pressing teeth (16, 17, 18, 19, 20) are configured to be rounded for better introduction of the surgical clip (2) into a body opening of a patient.
  10. 10. Surgical clip (2) according to claim 9, characterized in that the edge rounding of the tooth edge (25) of the gripping tooth (10) and/or of the pressing tooth (16, 17, 18, 19, 20) is produced by spraying the gripping tooth (10) and/or of the pressing tooth (16, 17, 18, 19, 20) of the surgical clip (2), in particular of the surgical clip (2), with particles, in particular balls, preferably balls made of ceramic, and concomitantly rounding the tooth edge (25) of the gripping tooth (10) and/or of the pressing tooth (16, 17, 18, 19, 20) at the tooth tip or tooth end of the gripping tooth and/or of the pressing tooth.
  11. 11. Surgical clip (2) according to claim 9 or 10, characterized in that the rounded tooth edge (25) of the gripping tooth (10) and/or the pressing tooth (16, 17, 18, 19, 20) has a radius of rounding of 0.05 mm to 0.40 mm, preferably 0.10 mm to 0.30 mm, particularly preferably 0.10 mm to 0.20 mm.
  12. 12. Surgical clip (2) according to any of the preceding claims, characterized in that the surgical clip (2) arches such that the gripping sections (4, 6) have a substantially arc-shaped curvature, which curvature extends along the gripping teeth (10).
  13. 13. Surgical clip (2) according to any one of the preceding claims, characterized in that the gripping teeth (10) of the gripping sections (4, 6) are constructed and arranged such that in the closed state of the surgical clip (2) the gripping teeth (10) of each of the gripping sections (4, 6) are alternately or alternately opposed.
  14. 14. Surgical clip (2) according to any of the preceding claims, characterized in that the surgical clip (2) is manufactured in one piece from an elastic sheet material.
  15. 15. A system for applying a surgical clip (2) according to any of the preceding claims 1 to 14 at a location in a body cavity of a patient to compress body tissue, comprising: an endoscope cap (26) on which the surgical clip (2) is arranged, and -An application means (28, 30) arranged and configured to apply the surgical clip (2) on the body tissue.

Description

Surgical clip Technical Field The present disclosure relates to a surgical clip for endoscopically treating gastrointestinal bleeding, consisting of a closed loop having two gripping sections, each having a base section and a plurality of gripping teeth configured for suturing tissue, such as stomach wall or colon, or for closing chronic or acute wall lesions of the human or animal body. Background When introducing a medical product into a body opening, in particular into a hollow organ of a patient, an implantation procedure of an endoscope, which is low-risk for the patient itself, can be performed in a known manner. For example, it is known to fasten a medical product to a hollow organ starting from the inside of the hollow organ. The tissue clamping head or clamp is here preferably introduced into the hollow organ by means of an endoscope or similar propulsion device and positioned at a predetermined point or position inside the organ. For this purpose, the respective clip is guided to the organ tissue and the clip is snapped on using the elastic hinge of the clip and thereby secures the clip to the organ tissue. The clip then holds or clamps the tissue plication between its grasping teeth, which may optionally have spikes, wherein the spikes are capable of cutting into or penetrating the tissue and preferably penetrate the tissue. Surgical (tissue) clips that can be fastened to the wall of a patient's organ tissue by endoscopic surgery are known in the prior art. Thus, for example, EP 2 449 983 B1 discloses a clip which is introduced into a patient in the form of an open on the endoscope head and is then pushed forward from the endoscope head in place, thereby snapping together and firmly clamping the organ tissue between its gripping teeth. The clip described here has a plurality of sharp thorn geometries or spikes which penetrate the clamped tissue to additionally anchor the clip. In addition, the additional laterally disposed spikes or tips also serve to capture a larger volume of tissue, cause greater clamping force, and penetrate more tissue for improved anchoring. However, pressing into tissue by laterally arranged spikes or tips has proven to be partly disadvantageous. In particular, it has been found that laterally disposed spikes or tips can damage or stress healthy tissue that is penetrated in an unnecessary manner therein. Especially thin and fresh tissue types are damaged or pressed in an unnecessary way. Disclosure of Invention The present disclosure is therefore based on the task of avoiding or at least alleviating the above-mentioned drawbacks and in particular of providing a surgical (tissue) clamp which automatically applies a clamping force for reliably suturing tissue, for example two areas of the stomach wall, without unnecessarily damaging healthy tissue and thus treating the tissue as a whole more gently. In particular, it is an object of the present disclosure to provide a surgical clip with suitable clamping properties, which reduces the risk of unnecessary tissue damage. As an optionally independent further task of the present disclosure, the risk of injury to the mucous membrane, in particular when introducing the tissue clip into the hollow organ of a patient, should be reduced by using such a tissue clip by a corresponding manufacturing process. The present disclosure first relates to a surgical clip according to the features of claim 1. The present disclosure thus relates to a surgical (tissue) clip, consisting of a closed loop/circular sheet material having a first and a second gripping section and two elastically deformable hinge sections/arches, the gripping sections each having a base section and a plurality of gripping teeth which are located between two circumferential end/edge sections of each gripping section and which are substantially parallel to each other and extend away from the respective base section, the hinge sections/arches being arranged beside the circumferential end of the gripping section, wherein the hinge sections have a curvature extending towards the inside of the loop such that the circumferential ends of the hinge sections and the gripping sections face at least partially towards each other, such that a gap is constructed between the hinge sections and the circumferential ends of the gripping sections. In this case, the circumferential end of at least one, preferably both, gripping sections has a plurality of rounded or rounded pressing/compression teeth extending toward the hinge section, so that the gap between the hinge section and the circumferential end of the gripping sections takes on a wave geometry or is configured in the form of waves for (additionally) compressing tissue. In other words, a surgical clip according to the present disclosure has an annular geometry with two gripping sections with a plurality of gripping teeth. The gripping teeth of the two gripping sections are arranged such that they lie opposite each other. The edges of