# US 12,178,423 B2 · Dynamic tensioning devices for orthopedic compression > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,178,423 B2 - Document ID: US12178423B2 - Status: Granted - Kind: B2 - Application number: 17/538,789 - Filed: 2021-11-30 - Published: 2022-06-02 - Granted: 2024-12-31 - Earliest claimed: 2020-11-30 - Assignees: Ossiscura, LLC - Applicants: Ossiscura, LLC - Inventors: Chad M. Ferguson - Web page: https://patentgrep.com/patent/US12178423B2 ## CPC - A61B 17/0401: {Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors (A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811)} - A61B 17/06: Needles {; Sutures; Needle-suture combinations}; Holders or packages for needles or suture materials - A61B 17/8019: {where the means are a separate tool rather than being part of the plate} - A61B 17/8023: {Variable length plates adjustable in both directions} - A61B 17/842: {Flexible wires, bands or straps (A61B17/72, A61B17/82, A61B17/86 take precedence)} - A61B 17/808: {Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms} - A61B 2017/00862: {elastic or resilient} - A61B 2017/00867: {shape memory effect} - A61B 2017/0404: {Buttons} - A61B 2017/0425: {the anchor or the separate member comprising threads, e.g. a set screw in the anchor} - A61B 2017/044: {with a threaded shaft, e.g. screws} - A61B 2017/0496: {for tensioning sutures} - A61B 2090/034: {abutting on parts of the device itself} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract Constructs, devices, and methods for dynamically compressing tissue. An exemplary construct comprises a dynamic tensioning device configured to be implanted in a subject and defining a suture-coupling site. The dynamic tensioning device may be deformable superelastically from a resting state to a stretched state. A suture may be connected to the dynamic tensioning device at the suture-coupling site. ## Claims ### Claim 1 A construct to compress tissue, comprising: a dynamic tensioning device configured to be implanted in a subject and defining a plurality of suture-coupling sites, the dynamic tensioning device being deformable superelastically from a resting state to a stretched state; and a plurality of sutures configured to couple to the dynamic tensioning device at each of the plurality of suture-coupling sites, wherein: the dynamic tensioning device defines a first suture-coupling site and a second suture-coupling site of the plurality of suture-coupling sites with a structural member therebetween; the plurality of suture-coupling sites are disposed radially around a centrally located mounting aperture formed by the structural member and configured for anchoring the dynamic tensioning device; and a distance between each of the first suture-coupling site and the second suture-coupling site with the mounting aperture is increased in the stretched state relative to the resting state. ### Claim 2 (depends on 1) The construct of claim 1, further comprising a needle connected to the dynamic tensioning device via at least one of the plurality of sutures. ### Claim 3 (depends on 1) The construct of claim 1, further comprising a fastener configured to engage bone and connected to the dynamic tensioning device via at least one of the plurality of sutures. ### Claim 4 (depends on 1) The construct of claim 1, wherein the plurality of sutures comprise a first suture configured to couple to the first suture-coupling site of the dynamic tensioning device, and wherein the plurality of sutures further comprise a second suture configured to couple to the dynamic tensioning device at the second suture-coupling site. ### Claim 5 (depends on 4) The construct of claim 4, wherein the construct comprises a fastener configured to extend through the mounting aperture and into bone, to attach the dynamic tensioning device to the bone. ### Claim 6 (depends on 5) The construct of claim 5, wherein the dynamic tensioning device has an outer surface opposite an inner surface that is configured to face bone, wherein a central axis extends through the dynamic tensioning device transverse to the outer and inner surfaces. ### Claim 7 (depends on 6) The construct of claim 6, wherein a distance from the structural member to the central axis varies along the structural member to form a plurality of protrusions each projecting away from the central axis, and wherein each protrusion defines one of the plurality of suture-coupling sites. ### Claim 8 (depends on 7) The construct of claim 7, wherein the dynamic tensioning device defines two or more apertures each extending from the outer surface to the inner surface and spaced from the mounting aperture. ### Claim 9 (depends on 4) The construct of claim 4, wherein: the plurality of suture-coupling sites further comprises a third suture-coupling site and a fourth suture-coupling site; a third suture of the plurality of sutures is connected to the third suture-coupling site; and a fourth suture of the plurality of sutures connected to the fourth suture-coupling site. ### Claim 10 (depends on 9) The construct of claim 9, further comprising a bone screw for passing through the mounting aperture to anchor the dynamic tension device. ### Claim 11 (depends on 1) The construct of claim 1, further comprising a third suture-coupling site of the plurality of suture-coupling sites. ### Claim 12 (depends on 11) The construct of claim 11, wherein the dynamic tensioning device is formed as a single piece and configured to be operative without extending into bone. ### Claim 13 (depends on 12) The construct of claim 12, wherein the dynamic tensioning device has an inner surface to face bone, and wherein the inner surface is free of protrusions for entering the bone.