94 results about "Metatarsal bone part" patented technology

An apparatus and method for stabilizing first and second adjacent bone portions. The apparatus has a spacer configured to be placed between the first and second bone portions and at least one stabilizer configured to be joined: a) to each of the first bone portion and the spacer; and b) to at least one of the first bone portion and spacer by being translated relative to the at least one of the first bone portion and spacer.

Attachment element for a prosthesis of the shoulder for the articulation of a humerus in a scapula of a shoulder having a glenoid cavity. The prosthesis comprises a first articulation element associated with the top of the humerus, and a second articulation element associated with the glenoid cavity. The attachment element comprises a first part for removable anchorage to the first or second articulation element, and a second part for attachment of the prosthesis to the bone part of the scapula in a position outside the bulk of the first and second articulation element.

Repairs of cartilage defects or of cartilage / bone defects in human or animal joints with the help of devices including a bone part (1), a cartilage layer (2) and a subchondral bone plate (4) or an imitation of such a plate in the transition region between the cartilage layer (2) and the bone part (1). After implantation, the bone part (4) is resorbed and is replaced by reparative tissue only after being essentially totally resorbed. In a critical phase of the healing process, a mechanically inferior cyst is located in the place of the implanted bone part (1). In order to prevent the cartilage layer (2) from sinking into the cyst space during this critical phase of the healing process the device has a top part (11). and a bottom part (12), wherein the top part (11) consists essentially of the cartilage layer (2) and the subchondral bone plate (4) and the bottom part (12) corresponds essentially to the bone part (1) and wherein the top part (11) parallel to the subchondral bone plate (4) has a larger diameter than the bottom part (12). After implantation in a suitable opening or bore (20), the cartilage layer (2) and the subchondral bone plate (4) are supported not only on the bone part (1) but also on native bone tissue having a loading capacity not changing during the healing process. Therefore, the implanted cartilage layer cannot sink during the healing process.

A bone-fastening system includes an implant with a threaded screw, a distal nut with a threaded bore, and a proximal washer which may also be threaded. An instrument for implanting the implant includes a handle and a barrel terminating in a holder for the washer. A c-shaped bridge assembly has a first end connected to the barrel and a second end including a holder for the nut in axial alignment with the washer. A manually operated control on the instrument, coupled to an elongated element in the barrel, causes the washer to move toward the nut, thereby applying compressive pressure to bone portions to be fastened together. A drive mechanism disposed within the barrel has a distal end with a holder for the screw and a proximal end that is turned by a user, thereby advancing the screw through the washer to the nut to fasten the bone portions under compression. The manually operated control is preferably a trigger that is squeezed toward the handle by a user. A separate control, also preferably in the form of a trigger, is used to release pressure on the elongated element in the barrel, enabling the implant to be easily removed from the implant once in position.

This invention is directed to an assembled implant comprising two or more portions of bone that are held together in appropriate juxtaposition with one or more biocompatible pins to form a graft unit. Preferably, the pins are cortical bone pins. Typically, the cortical pins are press-fitted into appropriately sized holes in the bone portions to achieve an interference fit. The bone portions are allograft or xenograft.

Protective devices, to protect a body part having a bony portion with a soft tissue layer between the bony portion and an outer skin layer, have an inner surface which conforms to the body part to be protected and are applied to the body part to reduce pressure exhibited at the interface between the bony portion and the soft tissue layer, across the soft tissue and outer skin layers and at the interface between the outer skin layer and a support surface. The protective devices may be made of any material suitable for distributing the weight of the body part over an extended area and volume and may include a mushy material, a hard shell, a hydro absorptive material, and a wound dressing with medication. The body-part to be protected includes at least one of the heel, trochanter, knee, sacrum, coccyx, ischium, scapula, elbow, ankle, buttocks and occiput; The protective devices may be secured to the body part directly or via a garment or any other suitable securing means.

A bone repair device includes a plate having a pathway and a flexible structure. The plate includes opposing top and bottom surfaces and a first side extending between the top and the bottom surfaces. The flexible structure is directly attached to and extends from the first side of the plate. In operation, the bone repair device is placed around and over a plurality of bone parts. The plate is secured to the plurality of bone parts with a cable inserted through the pathway and wrapped around the bone parts.