A61F2002/3096

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.

SYSTEMS AND METHODS FOR DESIGNING ORTHOPEDIC IMPLANTS BASED ON TISSUE CHARACTERISTICS

A system and computer-implemented method for manufacturing an orthopedic implant involves analyzing tissue characteristics based on image data of anatomy. Image data of a patient can be analyzed to identify at least one tissue characteristic at different locations along anatomic elements of anatomy of interest. A patient-specific implant configuration can be determined based on the analysis of the image data of a patient.

MODELING DEVICES USED IN GUIDED BONE AND TISSUE REGENERATION
20210085471 · 2021-03-25 ·

This disclosure describes manufacturing of a device configured to guide bone and tissue regeneration for a bone defect. A method may include receiving a three-dimensional digital model or scan representing an anatomical feature to be repaired, generating a simulated membrane using the three-dimensional model, the simulated membrane being configured to cover the anatomical feature to be repaired, generating a digital two-dimensional flattened version of the simulated membrane, and generating code or instructions configured to cause a three-dimensional printer or milling device to produce a trimming guide that includes an opening corresponding to the flattened version of the simulated membrane and that further includes a cut-out configured to hold a premanufactured membrane. The trimming guide may be operative as a guide for marking or cutting the premanufactured membrane through the opening while the premanufactured membrane is held in the cut-out.

Patient specific carpal implant

A surgical implant for a wrist bone fabricated on a patient-specific basis is based on a combination of the patient's own anatomy and an anatomical ideal from a database of scan data, and provides a patient-specific implant that minimizes spacing tolerance between adjacent bones to allow native cooperation between tightly spaced wrist bones. The three lower skeletal structures in the human wrist, including the trapezium, lunate and scaphoid bones, share a close, integrated geometry with the adjacent arm bones (radius, ulna) and remaining wrist bones. In contrast to conventional approaches that rely on reshaped connective tissue or generically shaped replacements, a patient-specific prosthetic restores the original geometry and spacing between wrist bones, allowing individual bone replacement without removal or fusing to adjacent bones, thus restoring a natural range of movement.

COLLAGEN MENISCUS CAP AND A METHOD FOR THE PRODUCTION OF A COLLAGEN MENISCUS CAP
20230414371 · 2023-12-28 ·

The subject of the invention is a collagen meniscus cap, in particular for the covering of a human meniscus and a method for producing a collagen meniscus cap. The collagen meniscus cap is used in orthopaedics for the treatment of meniscuses in humans and in veterinary medicine for the treatment of meniscus injuries in animals.

The collagen meniscus cap is formed by a set of two plates 1 in the shape of lateral or medial meniscus, each in the form of a layer of collagen membrane, placed on a bracing polymer skeleton 2, connected by a flexible hinge 3, whereas the thickness of the collagen membrane is within the range of H (0.4-09) mm, advantageously 0.6 mm, and the thickness of the polymer layer is within the range of h (0.2-06) mm, advantageously 0.45 mm, and the polymer skeleton 2 has the shape of intersecting segments which form a mesh.

A method for the production of a collagen meniscus cap consists of bio-absorbable and/or bio-degradable material being used to create, advantageously in a 3D technology by printing directly over collagen membrane, two polymer skeletons 2 with the shape of the lateral or medial meniscus and its mirror reflection, permanently connecting the polymer with collagen membrane, after which the connected plates 1 are cut until the shape of the lateral or medial meniscus, advantageously with a guillotine, then the cut collagen membrane plates 1 are folded together so that the inner edges of the plates 1 overlap and collagen membranes are placed on each other, then a tissue glue is used to cover the edges of the inner curvature 4 of both plates 1 of the collagen membrane to the inner outline of the polymer printout, and in turn the inner edges are glued together to create a hinge 3 of the collagen meniscus cap, after which the set is dried in ambient temperature to obtain the effect of gluing together.

Mechanical
20210212842 · 2021-07-15 ·

A prosthetic appendage for attachment to an outer extremity of an amputated limb that is composed of modular elements fabricated by three-dimensional printing. In one embodiment the prosthetic appendage is a leg. The prosthetic leg includes a foot portion and a plurality of modular and three-dimensionally printed limb elements. One of the plurality of limb elements is pivotally coupled to the foot portion and another of the limb elements is configured at one end to receive the outer extremity of the amputated leg. In another embodiment of the present invention the prosthetic appendage is a hand. The prosthetic hand includes a wrist element with one end configured to receive the outer extremity of an amputated hand, a base portion attached to the wrist element and a plurality of modular and three-dimensionally printed finger elements selectively coupled to adjacent finger elements or the base to form prosthetic fingers.

Method and apparatus for manufacturing an implant

An orthopedic device includes a femoral implant having a non-custom internal bone engagement surface. The femoral implant includes at least nine parameters adjusted preoperatively to correspond to a specific patient. The parameters can include patient-specific lengths, such as, for example, medial and lateral condyle widths and notch height, and patient-specific medial and lateral angles.

Bone implants for correcting bone defects

A mosaic implant (2010) comprises a mesh support frame comprising a plurality of polygonal support rings (2040 A, B, C) connected by a plurality of struts (2014), and a plurality of mosaic plates (2012). The support rings are positioned within the mosaic plates; the struts extend between adjacent plates. An implant (1510) for filling a bore hole comprises a plate (1512) and a support frame (1520) having a central portion (1522) located at least partially within the plate, a polygonal outer rim (1524) having a plurality of fastening points for attaching the implant to bone surrounding a bore hole, and a plurality of arms (1530) extending between the central portion and the outer rim. The plurality of arms extend inwardly and downwardly away from the outer rim such that the central portion is located below the plane of the outer rim and the upper surface of the plate is flush with or slightly above the upper surface of the outer rim.

DEMINERALIZED BONE FIBER COMPOSITION FOR USE IN MINIMALLY INVASIVE SURGERY
20200397586 · 2020-12-24 ·

A bone implant composition and methods thereof include bone material made into various implant shapes including a cylinder having an outermost layer and an inner layer completely surrounded by the outermost layer. The bone implant compositions and methods include a bag or cylindrical tube made from a bone material which may be filled with additional bone material.

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.