A61F2002/30154

Modified glenoid components and methods of installing same

A glenoid component for securement to a glenoid surface of a scapula comprises a body portion having a first surface adapted to contact the glenoid surface of a scapula and a second surface configured to receive the head portion of a humerus. The glenoid component further includes an anchor peg for penetrating the glenoid surface of the scapula so as to secure the body portion to the glenoid surface of the scapula. The anchor peg includes a cylindrical shaft extending from the first surface of the body portion and a fin secured to and extending outwardly from the cylindrical shaft. The glenoid component further includes a feature that prevents rotation of the glenoid component.

Methods of designing three-dimensional lattice structures for implants

The methods disclosed herein of generating three-dimensional lattice structures and reducing stress shielding have applications including use in medical implants. One method of generating a three-dimensional lattice structure can be used to generate a structure lattice and/or a lattice scaffold to support bone or tissue growth. One method of reducing stress shielding includes generating a structural lattice to provide sole mechanical spacing across an area for desired bone or tissue growth. Some examples can use a repeating modified rhombic dodecahedron or radial dodeca-rhombus unit cell. Some methods are also capable of providing a lattice structure with anisotropic properties to better suit the lattice for its intended purpose.

Flexible, cannulated implants for the hand and foot and methods of implanting flexible implants
10687952 · 2020-06-23 ·

A flexible, cannulated bone implant includes a proximal stem having a proximal end, a distal end, and a proximal conduit extending from the proximal end to the distal end of the proximal stem, a distal stem having a proximal end, a distal end, and a distal conduit extending from the proximal end to the distal end of the distal stem, and a flexible hinge interconnecting the distal end of the proximal stem with the proximal end of the distal stem for allowing the proximal and distal stems to flex relative to one another. The implant includes a proximal stem protective tube disposed within the proximal conduit of the proximal stem, and a distal stem protective tube disposed within the distal conduit of the distal stem. An elongated pin extends through the distal stem protective tube disposed within the distal stem and the proximal stem protective tube disposed within the proximal stem for securing the implant to bone.

CARBON FIBER COMPOSITE ARTIFICIAL BONE AND PREPARATION METHOD THEREOF
20200188117 · 2020-06-18 · ·

The invention discloses a carbon fiber composite artificial bone and a preparation method thereof. The artificial bone includes a carbon fiber composite spring-like frame or includes a carbon fiber composite spring-like frame and a carbon fiber composite plate dowel, and the carbon fiber composite plate dowel is inserted into one end or both ends of a cavity of the spring-like frame or penetrates through the cavity of the carbon fiber composite spring-like frame. The preparation method includes: preparing a spring-like carbon fiber preform through a weaving technology by using carbon fibers as a raw material, performing densification and high-temperature purification treatment and preparing a wear-resistant coating to obtain the carbon fiber composite spring-like frame; and combining the carbon fiber composite spring-like frame with the carbon fiber composite plate bowel to obtain the artificial bone.

IMPLANT FOR CARTILAGE REPAIR
20200163771 · 2020-05-28 · ·

A medical implant for cartilage repair at an articulating surface of a joint. The implant includes an implant body and at least one extending post. The implant body has an articulate surface configured to face the articulating part of the joint and a bone contact surface configured to face the bone structure of a joint. A cartilage contact surface connects the articulate and the bone contact surfaces and is configured to contact the cartilage surrounding the implant body in a joint. The cartilage contact surface has a coating that includes bioactive material.

IMPLANT PEG WITH MULTIPLE COMPONENTS

An implant system comprises an implant plate adapted to be positioned on a surface of a resected bone. The implant plate has a plurality of openings. A plurality of independently positionable pegs attach the implant plate to the bone. Each peg has a longitudinal axis and comprises: a peg body and a retaining device. The peg body is inserted into a peg hole in the bone. The peg body has a transverse dimension in a direction normal to the longitudinal axis, the transverse dimension larger than the openings of the plate. The retaining device is separate from the peg body, and is configured to attach to the peg body, with at least a first portion of the retaining device positioned above an upper surface of the implant plate, and a connecting portion of the retaining device extending through one of the openings of the implant plate.

Fluid interface system for implants

The present invention includes a fluid interface system for use in medical implants. The fluid interface system of the present invention can include one or more fluid interface channels disposed within an implant. The fluid interface systems can optionally include fluid redirection channels, fluid interface ports and a corresponding instrument to transfer fluid in or out of the fluid interface ports.

HIP JOINT INSTRUMENT AND METHOD
20200100912 · 2020-04-02 ·

The present invention relates to a method of treating a hip joint of a human patient, the hip joint comprising an acetabulum, the acetabulum being a part of the pelvic bone, and a caput femur, the caput femur being the proximal part of the femoral bone, said method comprising the steps of: cutting the skin of the human patient, dissecting an area of the pelvic bone on the opposite side from the acetabulum, creating a hole in said dissected area, said hole passing through the pelvic bone and into the hip joint of the human patient, and performing an action in the hip joint, through said hole in the pelvic bone.

REVISION PROSTHESIS SHAFT FOR A REVISION JOINT ENDOPROSTHESIS
20200060832 · 2020-02-27 · ·

The invention relates to a revision prosthesis shaft of a revision joint endoprosthesis for anchoring in an elongate bone (9), in particular femur. The surface is designed for adhesive agent-free fastening in the proximal epimetaphysis (91) and the diaphysis (92) of the bone. According to the invention, a distal epimetaphyseal extension (2) is provided at the far end of the shaft (12), the tip of which extension reaches into the distal epimetaphysis (93) of the bone. The extension (2) is designed for fastening in the distal epimetaphysis (93) by means of an adhesive agent (3), in particular bone cement. The invention combines the advantages of cement-free fastening, namely of the shaft in itself in the diaphysis (92), with the advantages of cemented fastening, namely of the extension in the distal epimetaphysis (93). Even in difficult cases in which sufficient hold previously could not be achieved for lack of fastening distance in the diaphysis, stable anchoring can thus be achieved. This increases the safety and longevity of the revision. The invention further relates to a corresponding implantation method.

Implant peg with multiple components

An implant system comprises an implant plate adapted to be positioned on a surface of a resected bone. The implant plate has a plurality of openings. A plurality of independently positionable pegs attach the implant plate to the bone. Each peg has a longitudinal axis and comprises: a peg body and a retaining device. The peg body is inserted into a peg hole in the bone. The peg body has a transverse dimension in a direction normal to the longitudinal axis, the transverse dimension larger than the openings of the plate. The retaining device is separate from the peg body, and is configured to attach to the peg body, with at least a first portion of the retaining device positioned above an upper surface of the implant plate, and a connecting portion of the retaining device extending through one of the openings of the implant plate.