Disclosed herein are exemplary embodiments of suture securement devices that replace the need to tie knots in sutures. Some embodiments comprise an annular outer body and one or more suture engagement tabs extending inwardly from the outer body. The devices can comprise a superelastic and/or shape-m
Disclosed herein are exemplary embodiments of suture securement devices that replace the need to tie knots in sutures. Some embodiments comprise an annular outer body and one or more suture engagement tabs extending inwardly from the outer body. The devices can comprise a superelastic and/or shape-memory material and have a generally in-plane initial configuration. The suture engagement portions are deformable out-of-plane to an active configuration with the outer body compressed and the tabs interlocked with each other. The device can be heat-set in the deformed configuration. The interlocked tabs exert a pinching force on sutures passing between them that restricts the sutures from sliding through the opening in one longitudinal direction.
대표청구항▼
1. A device for securing one or more sutures, comprising: a generally disk-shaped body having an annular outer body that defines an annular outer edge, a first tab extending radially inwardly from a first side of the annular outer body and a second tab extending radially inwardly from a second side
1. A device for securing one or more sutures, comprising: a generally disk-shaped body having an annular outer body that defines an annular outer edge, a first tab extending radially inwardly from a first side of the annular outer body and a second tab extending radially inwardly from a second side of the annular outer body;first and second curved slots passing through the disk-shaped body within the annular outer body, wherein the first and second curved slots define sides of the first and second tabs; anda middle slit connecting the curved slots and separating the first and second tabs, the slit and curved slots generally forming a closed H-shaped opening through the body within the annular outer body, the slit being sized to receive and hold one or more sutures, and opposed edges of the first and second tabs positioned across the slit from each other form suture engagement portions;wherein each of the first and second tabs has a base end that connects to the annular outer body and a free end that borders the slit, the base ends having a width that extends between an end of the first curved slot and an opposing end of the second curved slot, and the widths of the base ends of the first and second tabs are shorter than widths of the free ends of the first and second tabs, such that the first and second tabs are encouraged to articulate relative to the annular outer body along the width of their base ends;wherein the device comprises an elastically resilient material and has a flat natural configuration when no sutures are positioned in the slit;wherein the device has an active configuration wherein the first and second tabs are elastically deformed out of a plane defined by the annular outer body when one or more sutures are positioned through the slit in a direction generally perpendicular to the plane defined the annular outer body;wherein the elastically deformable first and second tabs allow the device to change from the natural configuration to the active configuration to receive and secure one or more sutures between the suture engagement portions; andwherein, in the active configuration, the suture engagement portions exert a pinching force on the one or more sutures that restricts the sutures from sliding through the slit in at least one longitudinal direction of the sutures. 2. The device of claim 1, wherein the device has a substantially uniform thickness in the natural configuration. 3. The device of claim 1, wherein the slit has a straight suture receiving portion and first and second angled end portions on opposite ends of the suture receiving portion configured to block received sutures from sliding laterally along the slit from the suture receiving portion of the slit into the curved slots, wherein the first angled end portion of the slit is adjacent to the first curved slot and the second angled end portion of the slit is adjacent to the second curved slot. 4. The device of claim 1, wherein the slit has a straight suture receiving portion and first and second serpentine end portions on opposite sides of the suture receiving portion configured to block received sutures from sliding laterally along the slit from the suture receiving portion into the curved slots, wherein the first serpentine end portion of the slit is adjacent to the first curved slot and the second serpentine end portion of the slit is adjacent to the second curved slot. 5. The device of claim 1, wherein the curved slots terminate in enlarged circular portions located where the first and second tabs join with the annular outer body, such that the enlarged circular portions reduce stress concentrations when the tabs elastically deform out of the plane defined by the annular outer body. 6. The device of claim 1, wherein the tabs are equal in size. 7. The device of claim 1, wherein the tabs are dissimilar, with one being larger than the other. 8. The device of claim 1, wherein elastic deformation of the first and second tabs occurs at locations where the first and second tabs join with the annular outer body. 9. The device of claim 1, wherein the curved slots have curved radially inner surfaces, the curved radially inner surfaces being curved lateral surfaces of the first and second tabs. 10. The device of claim 1, wherein each of the curved slots has a constant width along a majority of the length of the respective curved slot. 11. The device of claim 1, wherein the annular outer body comprises two opposing radial cutouts in the outer edge of the device. 12. The device of claim 1, wherein the slit extends a distance between the first and second tabs that is at least 50% of an outer diameter of the device. 13. The device of claim 1, wherein each of the first and second tabs has a length dimension that extends from the slit to the annular outer body in a direction perpendicular to the slit, wherein the annular outer body has a radial dimension that extends from the curved slot radially outwardly to the annular outer edge, and wherein the length dimension of the first and second tabs is greater than or equal to the radial dimension of the annular outer body. 14. The device of claim 1, further comprising a suture extending through the device between the first and second tabs, wherein the first and second tabs are bent relative to the annular outer body at junctions where the first and second tabs are connected to the annular outer body. 15. A method of using the device of claim 1, comprising inserting a suture through the device between the first and second tabs, the insertion of the suture occurring while the first and second tabs are bent relative to the annular outer body at junctions where the first and second tabs are connected to the annular outer body. 16. A device for securing one or more sutures, comprising: a generally disk-shaped body having an annular outer body that defines an annular outer edge; a first tab extending radially inwardly from a first side of the annular outer body and a second tab extending radially inwardly from a second side of the annular outer body;first and second slots passing through the disk-shaped body within the annular outer body, wherein the first and second slots define lateral sides of the first and second tabs; anda middle slit connecting the first and second slots and separating the first and second tabs, the slit and two slots forming a closed opening through the body within the annular outer body, the slit being configured to receive and hold at least one suture such that opposed edges of the first and second tabs positioned across the slit from each other form suture engagement portions;wherein the slit comprises a straight suture receiving portion having a first end closer to the first slot and a second end closer to the second slot, and the slit further comprises first and second non-straight portions on opposite ends of the straight suture receiving portion with the first non-straight portion extending from the first end of the straight suture receiving portion toward the first slot and the second non-straight portion extending from the second end of the straight suture receiving portion toward the second slot, the non-straight portions of the slit being configured to block a received suture from sliding laterally along the slit from the suture receiving portion into either of the slots;wherein the device comprises an elastically resilient material and has a natural configuration when no suture is positioned in the slit;wherein the device has an active configuration wherein the first and second tabs are elastically deformed when at least one suture is positioned through the slit; andwherein, in the active configuration, the suture engagement portions exert a pinching force on at least one suture extending through the slit that restricts the at least one suture from sliding through the slit in at least one longitudinal direction of the suture. 17. The device of claim 16, wherein: the slit extends in a first major direction of the device that is perpendicular to the longitudinal direction of a suture passing through the slit, and the first and second tabs extend toward each other in a second major direction of the device that is perpendicular to the first major direction and perpendicular to the longitudinal direction of a suture passing through the slit; andthe first and second non-straight portions of the of the slit extend back and forth in the second major direction as the slit extends radially outwardly in the first major direction. 18. The device of claim 17, wherein the first and second non-straight portions of the of the slit comprise serpentine sections of the slit that curve back and forth in the second major direction as the slit extends radially outwardly in the first major direction. 19. The device of claim 16, wherein the slit extends a distance across the device that is at least 50% of an outer diameter of the device. 20. The device of claim 16, wherein the first and second slots have a constant radial width along a majority of the length of the respective slot. 21. The device of claim 16, wherein the largest diameter of the device is less than 5 mm. 22. A device for securing one or more sutures, comprising: a generally disk-shaped body having a thickness and a radial dimension perpendicular to the thickness, the body having an annular outer body that defines an annular outer radial edge; a first tab extending radially inwardly from a first side of the annular outer body and a second tab extending radially inwardly from a second side of the annular outer body;first and second slots passing through the thickness of the disk-shaped body and positioned radially within the annular outer body, wherein the first and second slots define lateral sides of the first and second tabs; anda middle slit extending through the thickness of the body and radially connecting the first and second slots and separating the first and second tabs, the slit and two slots forming a closed opening passing through the thickness of the body and positioned radially within the annular outer body, the slit being configured to receive and hold at least one suture such that opposed surfaces of the first and second tabs positioned across the slit from each other form suture engagement portions, and wherein the slit has a constant spacing width between the first and second tabs across the thickness of the body;wherein the device comprises an elastically resilient material and has a natural configuration when no suture is positioned in the slit;wherein the device has an active configuration wherein the first and second tabs are elastically deformed when at least one suture is positioned through the slit; andwherein, in the active configuration, the suture engagement portions exert a pinching force on at least one suture extending through the slit that restricts the at least one suture from sliding through the slit in at least one longitudinal direction of the suture. 23. The device of claim 22, wherein the slit comprises a straight suture receiving portion having a first end closer to the first slot and a second end closer to the second slot, and the slit further comprises first and second non-straight portions on opposite ends of the straight suture receiving portion with the first non-straight portion extending from the first end of the straight suture receiving portion toward the first slot and the second non-straight portion extending from the second end of the straight suture receiving portion toward the second slot, the non-straight portions of the slit being configured to restrict a received suture from sliding radially along the slit from the suture receiving portion into either of the slots.
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