Nasal implants and systems and methods of use
Described are implants for placing in a body, tools for delivering the implants, and systems and methods for using implants and tools for placing in a body and more particularly to nasal implants, tools for delivering nasal implants, and systems and methods for using such implants and tools. A tool may include a hand-held implant delivery device that cuts, holds, moves, orients, inserts, or shapes an implant. An implant may be a biodegradable, longitudinal implant that may be oriented for implantation by an implant delivery device.
1. A nasal implant for supporting a nasal valve comprising:
a first end comprising a plurality of tines, wherein the plurality of tines are resiliently deformable between a contracted shape and an expanded shape;
a second end comprising a second-end shape that is different than the contracted shape of the plurality of tines and the expanded shape of the plurality of tines; and
an elongate body extending between the first end and the second end,
wherein, when the plurality of tines are in the contracted shape, the plurality of tines define a non-circular shape, and
wherein, when the plurality of tines are in the expanded shape, respective ends of the plurality of tines protrude outwardly from the first end such that plurality of tines are configured to anchor the nasal implant to nasal tissue when the nasal implant is in the nasal tissue
wherein the elongated body comprises a plurality of repeating features along a length of the nasal implant between the first end and the second end, and
wherein the plurality of repeating features comprise a plurality of ribs defined by a plurality of alternating raised regions and depressed regions.
2. The nasal implant of claim 1 , wherein the second-end shape is a rounded end shape.
3. The nasal implant of claim 2 , wherein the rounded end shape is semi-elliptical.
4. The nasal implant of claim 1 , wherein the plurality of tines point from away from the second end of the nasal implant.
5. The nasal implant of claim 1 , wherein the plurality of tines consist of two tines.
6. The nasal implant of claim 5 , wherein respective ends of the two tines are separated by a first distance when the plurality of tines are in the contracted shape,
wherein the respective ends of the two tines are separated by a second distance when the plurality of tines are in the expanded shape, and
wherein the second distance is greater than the first distance.
7. The nasal implant of claim 1 , wherein the first end, the second end, and the elongate body comprise a material that is biodegradable and biocompatible.
8. The nasal implant of claim 7 , wherein the material is poly-L-lactic acid (PLLA).
9. The nasal implant of claim 7 , wherein the material is poly-D-lactic acid (PDLA).
10. The nasal implant of claim 1 , wherein, when the plurality of tines are in the contracted shape, the nasal implant has an outer diameter less than 1.5 millimeters (mm).
11. The nasal implant of claim 1 , wherein the nasal implant is configured to provide an implant flexural rigidity between 2.5 e-6 and 1.5 e-5.
12. The nasal implant of claim 1 , wherein a length of the nasal implant between the first end and the second end is less than 30 mm.
13. The nasal implant of claim 1 , wherein a length of the nasal implant between the first end and the second end is less than 25 mm.
14. The nasal implant of claim 1 , wherein a length between the first end and the second end is configured to position the nasal implant adjacent to a first region that is substantially maxillary bone and a second region that is substantially cartilage such that the nasal implant supports the cartilage from collapse.
15. The nasal implant of claim 14 , wherein the cartilage of the second region is a lower lateral cartilage of a nose.
16. The nasal implant of claim 14 , wherein the plurality of tines are configured to anchor the nasal implant to the maxillary bone.
17. The nasal implant of claim 14 , wherein the length is between 30 millimeters and 20 millimeters.
18. The nasal implant of claim 5 , wherein the two tines are coplanar.