D10B2509/04

Method for manufacturing hyaluronate fibers by using melt spinning and hyaluronate fibers manufactured thereby
10994048 · 2021-05-04 · ·

Provided is a hyaluronate fiber, and more particularly to a hyaluronate fiber, suitable for use in a surgical suture, a filler for cosmetic surgery, a lifting thread, a tissue-engineering scaffold, etc., and a method of manufacturing the same. Further, a method of manufacturing the hyaluronate fiber through melt spinning is provided, which includes (a) controlling the water content of a hyaluronate having a weight average molecular weight of 500˜3,000 kDa to 5˜20%, (b) producing a hyaluronate fiber by placing the hyaluronate having a controlled water content in a melt-spinning apparatus and performing heating to 150˜200° C. and then high-pressure spinning, and (c) hardening the surface of the hyaluronate fiber by immersing the hyaluronate fiber in an ethanol aqueous solution.

Articles of poly(butylene succinate) and copolymers thereof

Resorbable implants, coverings and receptacles comprising poly(butylene succinate) and copolymers thereof have been developed. The implants are preferably sterilized, and contain less than 20 endotoxin units per device as determined by the limulus amebocyte lysate (LAL) assay, and are particularly suitable for use in procedures where prolonged strength retention is necessary, and can include one or more bioactive agents. The implants may be made from fibers and meshes of poly(butylene succinate) and copolymers thereof, or by 3d printing molding, pultrusion or other melt or solvent processing method. The implants, or the fibers preset therein, may be oriented. These coverings and receptacles may be used to hold, or partially/fully cover, devices such as pacemakers and neurostimulators. The coverings, receptacles and implants described herein, may be made from meshes, webs, lattices, non-wovens, films, fibers, foams, molded, pultruded, machined and 3D printed forms.

Articles of poly(butylene succinate) and copolymers thereof

Resorbable implants, coverings and receptacles comprising poly(butylene succinate) and copolymers thereof have been developed. The implants are preferably sterilized, and contain less than 20 endotoxin units per device as determined by the limulus amebocyte lysate (LAL) assay, and are particularly suitable for use in procedures where prolonged strength retention is necessary, and can include one or more bioactive agents. The implants may be made from fibers and meshes of poly(butylene succinate) and copolymers thereof, or by 3d printing molding, pultrusion or other melt or solvent processing method. The implants, or the fibers preset therein, may be oriented. These coverings and receptacles may be used to hold, or partially/fully cover, devices such as pacemakers and neurostimulators. The coverings, receptacles and implants described herein, may be made from meshes, webs, lattices, non-wovens, films, fibers, foams, molded, pultruded, machined and 3D printed forms.

Braided Filament Having Flat Morphology and Methods of Manufacture and Use
20210038220 · 2021-02-11 ·

A braided filamentary device, in one embodiment, includes a substantially flat morphology having a length, a width, and a height, and a pick count of at least about 50 picks per inch. The filamentary device is adapted to maintain its width while under a tension.

Braided Filament With Particularized Strand Compositions And Methods Of Manufacturing And Using Same
20210071332 · 2021-03-11 ·

In one embodiment, the present invention is a braided filament including a plurality of strands each having at least one ultrahigh molecular weight polyethylene fiber and at least one polyester fiber wherein the quantity of certain types of fibers in a first strand is the same as the quantity of the same type of fibers in a second strand. In a variant, one additional strand of the braided filament is a monofilament strand. In another variant, each strand is homogeneous with respect to the other strands and is made exclusively from ultrahigh molecular weight polyethylene fibers and polyester fibers such that each strand has the same distribution and quantity of fiber types.

FABRICATING A CARBON NANOFIBER YARN NERVE SCAFFOLD

A carbo nanofiber nerve scaffold includes a cylindrical helix, a bundle of aligned carbon nanofiber yarns, and a carbon nanofiber sheet. The cylindrical helix includes a surgical suture material, and the cylindrical helix defines an interior of the carbon nanofiber nerve scaffold. The bundle of aligned carbon nanofiber yarns is disposed within the interior of the cylindrical helix. The carbon nanofiber sheet is disposed around the cylindrical helix on a side of the cylindrical helix opposite of the interior.

MEDICAL DEVICES CONTAINING COMPOSITIONS OF POLY(BUTYLENE SUCCINATE) AND COPOLYMERS THEREOF

Resorbable implants, coverings and receptacles comprising poly(butylene succinate) and copolymers thereof have been developed. The implants are preferably sterilized, and contain less than 20 endotoxin units per device as determined by the limulus amebocyte lysate (LAL) assay, and are particularly suitable for use in procedures where prolonged strength retention is necessary, and can include one or more bioactive agents. The implants may be made from fibers and meshes of poly(butylene succinate) and copolymers thereof, or by 3d printing molding, pultrusion or other melt or solvent processing method. The implants, or the fibers preset therein, may be oriented. These coverings and receptacles may be used to hold, or partially/fully cover, devices such as pacemakers and neurostimulators. The coverings, receptacles and implants described herein, may be made from meshes, webs, lattices, non-wovens, films, fibers, foams, molded, pultruded, machined and 3D printed forms.

MEDICAL DEVICES CONTAINING POLY(BUTYLENE SUCCINATE) AND COPOLYMERS THEREOF

Resorbable implants, coverings and receptacles comprising poly(butylene succinate) and copolymers thereof have been developed. The implants are preferably sterilized, and contain less than 20 endotoxin units per device as determined by the limulus amebocyte lysate (LAL) assay, and are particularly suitable for use in procedures where prolonged strength retention is necessary, and can include one or more bioactive agents. The implants may be made from fibers and meshes of poly(butylene succinate) and copolymers thereof, or by 3d printing molding, pultrusion or other melt or solvent processing method. The implants, or the fibers preset therein, may be oriented. These coverings and receptacles may be used to hold, or partially/fully cover, devices such as pacemakers and neurostimulators. The coverings, receptacles and implants described herein, may be made from meshes, webs, lattices, non-wovens, films, fibers, foams, molded, pultruded, machined and 3D printed forms.

HERNIA REPAIR, BREAST RECONSTRUCTION AND SLING DEVICES CONTAINING POLY(BUTYLENE SUCCINATE) AND COPOLYMERS THEREOF

Resorbable implants comprising poly(butylene succinate) and copolymers thereof have been developed. The implants implants are preferably sterilized, and contain less than 20 endotoxin units per device as determined by the limulus amebocyte lysate (LAL) assay, and are particularly suitable for use in procedures where prolonged strength retention is necessary, and can include one or more bioactive agents. The implants may be made from fibers and meshes of poly(butylene succinate) and copolymers thereof, or by 3d printing, and the fibers may be oriented. Coverings and receptacles made from forms of poly(butylene succinate) and copolymers thereof have also been developed for use with cardiac rhythm management devices and other implantable devices. These coverings and receptacles may be used to hold, or partially/fully cover, devices such as pacemakers and neurostimulators. The coverings and receptacles are made from meshes, webs, lattices, non-wovens, films, fibers, and foams, and contain antibiotics such as rifampin and minocycline.

Variable denier yarn and suture
11849938 · 2023-12-26 · ·

A method of suturing includes: (1) wrapping a first segment of a suture through a traction loop; (2) pulling the traction loop and the first segment through an opening in a suture lock; (3) continuing to pull the traction loop such that a second segment of the suture extends through the opening, wherein the second segment has a greater denier than the first segment such that the second segment more nearly fills an entire dimension of the opening than the first segment; and (4) locking the suture in place with the second segment in the opening.