An ossicle prosthesis (10) that replaces or bridges component(s) or parts of a component of the ossicular chain, comprises a rotary joint between two fastening elements (11, 12) comprising a silicone or polytetrafluoroethylene receiving part (13) in which a metal rotary element (14) fixedly connected with a metal longitudinal shank (16) that connects the two fastening elements is hingedly supported. The elastic plastic receiving part is rigidly connected with first fastening element. It comprises a cavity that encloses at least half of the surface of the rotary element in its installed state. An ossicle prosthesis that replaces or bridges component(s) or parts of a component of the ossicular chain, comprises a first fastening element at one end designed as a top plate for mechanical connection with the tympanic membrane; a second fastening element at the other end for mechanical connection with a component or parts of the ossicular chain or with the inner ear; and a rotary joint between the two fastening elements comprising a silicone or polytetrafluoroethylene receiving part in which a metal rotary element fixedly connected with a metal longitudinal shank that connects the two fastening elements is hingedly supported. The receiving part is made of an elastic plastic. It is rigidly connected with the first fastening element, and comprises a cavity shaped in such a way that when in an installed state, it encloses at least half of the surface of the rotary element.

A bone resection tool for resecting an end of a bone along a surface having a curvature comprises a guide (10), a cutting tool (100,200) and a track follower (110). The guide is configured to be removably attached in a fixed position to the end of the bone. The guide is configured to include a track (58) exhibiting a curvature generally corresponding to the curvature of the surface to be resected in the bone. The cutting tool includes a cutting face. The track follower is configured to couple to the cutting tool and cooperate with the track to facilitate reciprocation of the cutting tool relative to the guide to induce the cutting face to resect the bone along the surface having the curvature.

A bone resection tool for resecting an end of a bone along a surface having a curvature comprises a guide (10), a cutting tool (100,200) and a track follower (110). The guide is configured to be removably attached in a fixed position to the end of the bone. The guide is configured to include a track (58) exhibiting a curvature generally corresponding to the curvature of the surface to be resected in the bone. The cutting tool includes a cutting face. The track follower is configured to couple to the cutting tool and cooperate with the track to facilitate reciprocation of the cutting tool relative to the guide to induce the cutting face to resect the bone along the surface having the curvature.

A surgical instrument (10) comprises a handle (19) connected to a shaft (15) and a pair of inflatable members (30,32). The shaft includes conduits (96) for communicating a pressurized medium to the inflatable members and an insufflation tube. The handle includes a port for communicating a pressurized medium to the conduits and a port for communicating a pressurized medium to the insufflation tube. After an anastomotic ring (14) has been deployed, the shaft may be positioned such that an inflatable member is positioned within each of the lumens joined by the anastomosis, such that an inflatable member is located on each side of the anastomosis. The inflatable members may be inflated to provide a seal in each of the lumens. With each of the lumens sealed by the inflatable members, the anastomosis site may be insufflated through the insufflation tube to leak or pressure test the anastomosis.

Osteosynthesis device, particularly for the spine by means of internal implantation, comprising firstly one or more bars (2) used to support or move the spine, and secondly at least one implant (3) connecting the bars and the vertebrae, said implant comprising firstly bone anchorage means attached to the body of said implant and secondly fixation means for said bars, said fixation being carried out by clamping means (31) clamping said bar against the internal walls (320) of a channel (32), with an opening, formed in said body of the implant (3), characterised in that said bars comprise a transversal bearing surface (21) on at least part of their length, said transversal bearing surface being produced by a cross-section of said bars comprising at least one part of lower or opposed convexity in relation to the rest of said cross-section, and in that the axis of the clamping means is merged with or parallel to the symmetrical axis of the bone anchorage means of the body, and the clamping means comprise a surface (310) which is adapted to the transversal bearing surface (21) of the bar (2),the contact surface, between the bar and surface (310) of the clamping means or the internal wall (320) of the channel (32), being adapted to allow to carry out a rotation or transversal shift of the bar to adjust the transversal position and the angular position of this bar on the body.

The reamer has a component (10) to prepare a cavity in an intramedullary canal of a long bone. The component has a portion for placement in the canal, and defines a rotational centerline. A component (12), coupled to the component (10) by a joint, defines a rotational centerline. The centerlines have relationships in which the centerlines coincide to form an angle alpha , and skew with respect to each other to form an angle beta . An independent claim is also included for a kit for preparing a cavity in the intramedullary canal of a long bone for use in performing joint arthroplasty.

The present invention provides a cutting tool assembly having a tool shank with an elongated hole extending axially through the tool shank. An elongated support bar having threaded bore at its forward end is retained in the elongated hole. A cutting head having a forward cutting portion and a rear threaded portion is retained in the support bar with its rear threaded portion threadingly engaged with the threaded bore in the forward end of the support bar.

The present invention provides a cutting tool assembly having a tool shank with an elongated hole extending axially through the tool shank. An elongated support bar having threaded bore at its forward end is retained in the elongated hole. A cutting head having a forward cutting portion and a rear threaded portion is retained in the support bar with its rear threaded portion threadingly engaged with the threaded bore in the forward end of the support bar.

A two part support for the bar in an equestrian fence, e.g. for show jumping, has a two part construction with an adaptor (35) provided with two rear fitting studs (45, 47) to fit into one of an array of holes in an upright and with a bar support (11) fitted into a slot in the front of the adaptor using two studs. The fitting includes a sprung grip to hold the two components together. The bar is displaced from the support by horizontal forces and the bar support is released from the adaptor by vertical forces. The two part support can be made of plastic mouldings.

The section of the bead receiving seat (10a,10b) are formed in circular shape with the developed length (L1). The circumferential anchoring line of the turn up membrane (12a,12b) on the return segments (9a,9b) are axially offset towards the center of a drum by the length (L2) relative to the bead receiving seat. The other length is between 0.7 to 2 times the one length.