Abstract: The invention is a coupler for interconnecting the ends of two fluid conduits wherein the connectors are each mounted inwardly of the open end of respective cupped members; the cupped members telescope one over the other and one of them has a flared end to assist in the initial alignment of the telescoping action. The connectors connect with each other to establish fluid flow as the cupped members are telescoped together.

Abstract: The invention is a permanent catheter for use in the practice of peritoneal dialysis. It has a bead on the tube that, in use, underlies the peritoneum and a cuff made of a fibrous material that has a disc that overlies the peritoneum and forms a scar tissue as a seal.

Abstract: This invention relates to a tubular needle for making an interconnection between a vessel containing a fluid and a plastics tube that can be series connected with similar tubular needles so that each needle of the series can be maintained sterile until required for use. In use, needles in the series of connected needles are exposed for use one at a time as required.

Abstract: A bone biopsy instrument kit includes a hollow body having a socketed forward end to receive one of several hollow, disposable needles. A chuck holds a needle in place on the body, and the rear end of the body has a recess for receiving a bushing into which a stylet is threaded for extending through the body and the needle as desired. The stylet serves as an obturator closing the needle for passing through soft tissue to the bone, then the body is used to drive the needle into the bone to a depth that can be checked by reinserting the obturator. The removed specimen material is set inside the disposable needle, and then another stylet with a blunt end is used to extrude the specimen from the needle for diagnosis.