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Publication Number
US-12426889-B2
Publication Date
2025-09-30
Expiration Date
Abstract
A surgical clip may include first and second leg members, each having inner surfaces. The inner surface of the first leg member may be concave and the inner surface of the second leg member may be convex. The surgical clip may include a first locking member positioned on a distal end portion of the first leg member, and a second locking member positioned on a distal end portion of the second leg member. The surgical clip may also include a third locking member position between a proximal end portion and the distal end portion of the first leg member, and a fourth locking member positioned between a proximal end portion and the distal end portion of the second leg member. The first and second locking members, and the third and fourth locking members may be configured to interact to secure the surgical clip in a closed configuration.
Core Innovation
The invention describes a surgical clip comprising a first leg member and a second leg member that move between an open configuration and a closed configuration. Each leg member has an inner surface with a curvature that forms a vessel clamping surface so that, in the closed configuration, the first and second inner surfaces approximate to clamp a vessel or other tissue between the vessel clamping surfaces.
The surgical clip further includes an elongate member extending from the first leg member, the elongate member including a tooth. In the closed configuration, the tooth is configured to engage the second leg member to secure the first and second leg members in the closed configuration, providing a mechanical securement between the interacting leg members.
Additional embodiments include multiple interacting locking mechanisms along the length of the clip, including distal hook/recess and proximal/hinge-associated latch features. The locking system includes hook-and-recess interlock and an additional latching mechanism using an elongate member with a tooth or protrusion engaging an undercut in a channel or barrel structure, with spacing when closed to provide flexibility and to reinforce closure if one latch wears.
The embodiments also describe hinge construction using a hinge portion and hinge pin with a curved slot, and tissue-engaging teeth angled toward the proximal end, with optional bosses for a clip applier and optional absorbable polymer material.
Claims Coverage
The partial content provides one independent claim for a surgical clip having two leg members that clamp a vessel or other tissue via respective curved inner clamping surfaces, and an elongate member with a tooth that engages a leg member to secure the clip in the closed configuration. Dependent claims refine hinge construction and securement features, including curvature characteristics and additional material options.
Curved vessel clamping surfaces on two movable legs
A first leg member with a first inner surface having a first curvature forming a first vessel clamping surface, and a second leg member with a second inner surface having a second curvature forming a second vessel clamping surface, wherein the first and second leg members move between an open configuration with spaced inner surfaces and a closed configuration where the inner surfaces approximate to clamp a vessel or other tissue between the vessel clamping surfaces.
Elongate member with a tooth that engages to secure closure
An elongate member extending from the first leg member, the elongate member including a tooth, wherein the tooth is configured to engage the second leg member to secure the first and second leg members in the closed configuration.
Across the independent claim and its refinements in the provided claim set, the coverage centers on clamping via curved inner clamping surfaces on first and second leg members, and securing the closed configuration by an elongate member tooth engaging the second leg member. The dependent claims further narrow the structure with hinge-related configurations, specified curvature types, spacing behavior of the tooth in the closed-without-tissue condition, and optional absorbable polymer material.
Stated Advantages
The locking system reinforces closure if one latch wears.
Spacing when closed provides flexibility.
Documented Applications
Hemostatic vessel ligation.
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