Abstract: A stand for use with a syringe having a proximal end and a distal end is disclosed. The stand includes a base and a protrusion extending from the base. The protrusion is adapted to engage the proximal end of the syringe so as to maintain the syringe in a position such that the distal end of the syringe has a vertical position above a vertical position of the proximal end. The protrusion may be structured so as to extend into the proximal end of the syringe and/or form a pressure fit within the syringe. The stand may include a support that contacts a portion of the syringe located between the proximal and distal ends thereof so as to maintain a position of the syringe. Methods for using such a stand as well as kits including a syringe and stand are also disclosed.

Abstract: A stand for use with a syringe is disclosed. The stand includes a base and a clip affixed to the base. The clip engages a portion of the syringe so as to removably secure the syringe to the stand in a position such that the distal end of the syringe is spaced vertically away from the base. Preferably, the syringe includes a handle extending outwardly from a barrel of the syringe, and the feature which the clip engages includes the handle of the syringe.

Abstract: A stand for use with a syringe having a feature, the stand having a base portion, and a top portion. The top portion has an aperture formed therein, the aperture being structured to engage a feature of the syringe. The top portion is positioned relative to the base portion such that the syringe is maintained in an upright position when the feature of the syringe is engaged within the aperture.

Abstract: An apparatus for use in the regeneration of structured human tissue has a pair of opposed surfaces comprising a bio material or a synthetic polymer material. Each surface carries an active bio layer which can interact with stem cells from bone marrow. The opposed surfaces can be moved from an open position where they are spaced apart to a closed position in which they are closer together to form a multi-layer or sandwich construction.

Abstract: A method of making a prosthetic polymeric bearing element having a backing made from a “rigid” polymeric bearing material which has a minimum hardness value of 65 N/mm2 and which supports a bearing liner having a bearing surface and made from a “soft” elastomeric polyurethane material having a hardness value of 3.0 to 9.0 N/mm2 (using machine testing method BS 2782; Pt3 method 365D). The opacity of said bearing liner is arranged to allow the passage of a laser beam through it and the opacity of said backing is arranged to prevent the passage of a laser beam which has passed through the bearing liner. The liner and backing are then bonded together and then the bearing liner and backing are treated with the laser beam to cause an improved interfacial bond by laser welding.

Abstract: A metal backing for inclusion in the manufacture of a prosthetic component having a plastic bearing element on an upper surface and has a bottom surface portion with elements for attachment to a bone. The backing has an upper surface portion at least part of which is formed by a grill element having exposed front and rear faces and which is intended to be embedded within the plastic bearing member during construction. The plastic bearing material of the bearing element can be molded so that all the faces thereof exposed to the grill are covered and the grill is embedded within the plastic material of the bearing element. The grill is located on a metal support and is provided with spacers on its front face to space the front face away from the support. The grill is cast integrally into the metal support during manufacture.

Abstract: A method of implanting an acetabular cup which includes the step of preparing an acetabular socket to receive a cup, placing cement in the acetabular socket before or after locating a tube in line with the acetabular socket and inserting the acetabular cup through the tube and into the socket.

Abstract: A process for improving the start up and steady rate friction of soft/compliant polyurethane bearings uses a pre-treatment with Ringers solution. The process includes treating the polyurethane in a heated bath of the solution for 96 hours at a temperature of between 30° C. and 37° C.

Abstract: A profile gauge for use with an acetabular cup loading tube provided with a skirt or flange characterized by adjustable means for measuring and indicating the diametric profile of the mouth of the rim area adjacent thereto of an acetabular socket into which an acetabular cup is to be implanted and includes means for removably locating said adjustable means on a loading tube to indicate on the skirt thereof the measured diameter profile.

Abstract: An articulation element for the relative positioning of fixation bars or bone pins of an external fixator includes a plurality of pairs of jaws. The jaws have on their adjacent faces grooves which form a passage intended to receive a bar or a pin. A spring is interposed between the pairs of jaws. The grooves which form the passage are positioned and arranged so as to have an external opening allowing the bar or bone pin to be snapped in by pressure on it, from the opening of the jaw into the passage, against the spring force which presses the adjacent faces of the haws against one another. This force holds the articulation element on the bars or pins before locking of the articulation by means of a clamping shaft.

Abstract: A Process is described in which the polymer is passed over a former under hydro-static pressure, which may involve passing the material over a die or series of dies for the purpose of imposing multi-axial expansion to the workpiece. Some of the advantages are increased stiffness and reduction in creep. Improved wear is also found.

Abstract: An apparatus for impacting bone chips in a bone canal. The impactor has an impaction head of predetermined dimensions and a stem extending therefrom. There is a visual indicator provided with means for secure location on said stem to visually indicate the distance of insertion of the impaction head within a bone canal.

Abstract: A metal backing for inclusion in the manufacture of a prosthetic component having a plastic on an upper surface and has a bottom surface portion with elements for attachment to a bone. The backing has an upper surface portion at least part of which is formed by a grill element having exposed front and rear faces and which is intended to be embedded within the plastic bearing member during construction. The plastic bearing material of the bearing element can be molded so that all the faces thereof exposed to the grill are covered and the grill is embedded within the plastic material of the bearing element. The grill is located on a metal support and is provided with spacers on its front face to space the front face away from the support. The grill is cast integrally into the metal support during manufacture. The casting process includes casting a grill on both outer surfaces of the metal backing with the grill element including cross-members spaced from backing surfaces.

Abstract: A tibial element for a replacement knee prosthesis has a tibial tray, fastening connector for securing an attachment element to the lower part of the tray, and also provided with independently operable securing boss at its upper end which engage a cooperating construction on a bearing component to secure the bearing component to the upper part thereof. The fastening connector allows for a stronger construction than the previous arrangements and it also allows for a convenient modular construction which will allow a standard modular tray to be employed with various types of bearing construction, for example, a fixed component or a sliding component.

Abstract: A prosthetic bearing element comprises a backing which supports a bearing liner having a bearing surface. The backing is made from a "hard" polymeric material having a minimum hardness value of 55 N/mm.sup.2 and the bearing liner is made from a "soft" elastomeric polyurethane material having a hardness value of 3.0 to 9.0 N/mm.sup.2.

Abstract: A method of implanting an acetabular cup which includes the step of preparing an acetabular socket to receive a cup, placing cement in the acetabular socket before or after locating a tube in line with the acetabular socket and inserting the acetabular cup through the tube and into the socket.

Abstract: A tibial element is provided for a replacement knee prosthesis which comprises a tibial tray provided with a bearing component having medial and lateral compartments. Control means acting between the tray and the bearing component are included which provide free posterior and anterior movement of the lateral compartment which is greater than any allowed free posterior and anterior movement of the medial compartment in relation to the tray. Thus, there is no relative free posterior movement and anterior movement of the medial compartment or some may be allowed.

Abstract: An apparatus for performing prosthesis surgery has a phantom implant component. Elements are provided for holding said phantom component accurately and stationary relative to a cavity in a bone. The phantom component has a tapered insert portion, the dimensions of which are identical to the insert portion of an implant component which is to be fitted. A method of performing prosthesis surgery is included which uses the apparatus set forth above which includes preparing an opening in a bone with cement, inserting the insert portion of the phantom component, allowing the cement to at least partially set, removing the phantom component, inspecting the cement and then inserting the implant component with the identical insert portion dimensions.

Abstract: An articulation element for the relative positioning of fixation bars or bone pins of an external fixator includes a plurality of pairs of jaws. The jaws have on their adjacent faces grooves which form a passage intended to receive a bar or a pin. A spring is interposed between the pairs of jaws. The grooves which form the passage are positioned and arranged so as to have an external opening allowing the bar or bone pin to be snapped in by pressure on it, from the opening of the jaw into the passage, against the spring force which presses the adjacent faces of the jaws against one another. This force holds the articulation element on the bars or pins before locking of the articulation by the tightening of a clamping shaft.

Abstract: A prosthesis having attachment portion for insertion into or attachment to a patient's bone without bone cement. Parts of the attachment portion on the prosthesis are attached to the bone are covered with a mantle of synthetic resin material and which has a roughened outer surface with bone fragments or calcium phosphate fragments embedded therein.