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Publication Number
US-12672865-B2
Publication Date
2026-07-07
Expiration Date
Abstract
A suture backstop system including a backstop with a first and second end both extending in a distal direction. The system includes a first passing longitudinal element woven through the backstop. A first loop is created in the first passing longitudinal element and extends from the first end of the backstop. Similarly, the system also includes a second passing longitudinal element woven through the backstop where a second loop is created in the second passing longitudinal element and extends from the second end of the backstop. The first and second passing longitudinal elements are attached to a distal end of a handle. The first and second ends of the backstop are positioned in a first direction in an undeployed configuration and positioned in a second direction, different from the first direction, in a deployed configuration.
Core Innovation
The disclosed invention relates to a suture backstop system for surgical soft-tissue/suspensory fixation in a bone tunnel, using an all-suture backstop with two ends extending distally. A first passing longitudinal element is woven through the backstop to create a first distal loop extending from the first end, and a second passing longitudinal element, separate from the first, is woven through the backstop to create a second distal loop extending from the second end.
The backstop system includes a handle with a distal end to which the passing longitudinal elements attach, so the backstop is provided in an undeployed configuration and then placed into a deployed configuration. In the undeployed configuration, the backstop ends extend in a first direction, and in the deployed configuration the backstop ends are repositioned in a different second direction, i.e., a directional repositioning of the backstop ends.
Deployment and fixation are described in the context of a suture suspension system that includes an all-suture button/anchoring body and suture free limbs. The distal loops are passed over suture free limbs and deployment changes the backstop from an expanded state to a compressed state by manipulating the handle, after which a knot is tied over the backstop to secure against pullout and maintain tension.
Claims Coverage
The provided claim coverage includes one independent claim and related refinements. The inventive features center on a suture backstop with a central longitudinal axis, two separate passing longitudinal elements woven through opposite ends to form separate loops, and a positional configuration in which opposite backstop surfaces face a distal direction.
Central-axis backstop with first and second surfaces in two positions
A suture backstop having a central longitudinal axis extending between a first end and a second end, where the first end comprises a first surface and the second end comprises a second surface opposite the first surface when the backstop is in a first position fully extending along the central longitudinal axis; the backstop is in a second position when the first passing longitudinal element and the second passing longitudinal element are each woven therethrough, and in the second position each of the first surface of the backstop and the second surface of the backstop face a distal direction.
Separate first passing longitudinal element woven to form a first distal loop
A first passing longitudinal element woven through the backstop such that a first loop having a first opening is created in the first passing longitudinal element and extends from the first end of the backstop.
Separate second passing longitudinal element woven to form a second distal loop
A second passing longitudinal element separate from the first passing longitudinal element and woven through the backstop such that a second loop having a second opening is created in the second passing longitudinal element and extends from the second end of the backstop.
Weaving at multiple passing locations
The first and second passing longitudinal elements are woven through a backstop at specified multiple passing locations, including three passing locations for each longitudinal element as described in the dependent refinements.
All-suture material backstop
The backstop is made of all-suture material.
Nitinol passing longitudinal elements
The first and second passing longitudinal elements are both formed of nitinol.
Handle with distal attachment of passing longitudinal elements
A handle with a central longitudinal axis having a proximal end and a distal end is included, and the distal end is attached to the first passing longitudinal element and the second passing longitudinal element.
Loop side/plane orientation relative to handle axis
The first loop includes four sides arranged in respective planes at specified orientations relative to the handle central longitudinal axis, and all four sides face the first opening.
The coverage centers on a backstop with a central longitudinal axis and two separate woven passing longitudinal elements that create distinct loops extending from opposite ends, with a two-position surface orientation toward the distal direction. Additional refinements narrow weaving location patterns, require all-suture backstop material and/or nitinol passing elements, add a handle with distal attachment, and constrain loop side/plane orientation relative to the handle axis.
Stated Advantages
Reducing irritation by using all-suture materials.
Potential radiopacity via a radiopaque fiber.
Documented Applications
Surgical soft-tissue/suspensory fixation in a bone tunnel using a suture suspension system that includes an all-suture button/anchoring body and suture free limbs, with a backstop deployed and secured with a knot over the backstop.
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