Michael A Savin, James E Windheuser, Richard A Noddin: Stent delivery system. Boston Scientific Corporation, Fish & Richardson, August 21, 1990: US04950227 (621 worldwide citation)

A stent delivery system to facilitate introduction and placement of a stent, including a catheter having an expansible distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state; a stent positioned around the distal portion o ...

Peter J Wilk: Suture device. Coleman & Sudol, August 21, 1990: US04950285 (459 worldwide citation)

A suture device comprises a body member formed with an aperture and an access channel extending from the aperture to an opening defined by a loop attached to one side of the body member. A thread connected to a side of the body member opposite the loop is provided along a portion of its length with ...

Jerald A Bowman, Richard V Zile: Cannulated self-tapping bone screw. Boehringer Mannheim Corporation, Barnes & Thornburg, August 21, 1990: US04950270 (430 worldwide citation)

A fluted and cannulated self-tapping bone screw which can be guided into proper position using a guide pin that slidably fits in the cannula of the bone screw. The flutes have cutting edges centered on axial centerline of the cannula.

Thomas W Osborn III: Thin, flexible sanitary napkin. The Procter & Gamble Company, Larry L Huston, John M Pollaro, Frederick H Braun, August 21, 1990: US04950264 (371 worldwide citation)

In accordance with the present invention, a sanitary napkin having a body surface and a garment surface and being comprised of an absorbent means underlayed by a liquid barrier means, wherein the sanitary napkin is relatively highly flexible and has a capacity great enough to handle medium to high m ...

Tatsuya Kawai, Takashi Matsuda: Plastic molded articles with shape memory property. Japan Medical Supply, Kramer Brufsky & Cifelli, August 21, 1990: US04950258 (362 worldwide citation)

Plastic molded articles having characteristic properties of both shape-memory and biodegradability and a process for preparing the same are disclosed. The molded products consist of homopolymers of lactide or glycolide or copolymers of lactide and glycolide. The molded articles of this invention are ...

Robert W Gaines Jr: Spinal column fixation device. AcroMed Corporation, Tarolli Sundheim & Covell, August 21, 1990: US04950269 (329 worldwide citation)

An apparatus for connecting vertebrae including a rod and a fastener for connecting the rod with a vertebra of a spinal column. The fastener includes a screw having a threaded portion for connection with the vertebra. The screw has a head connected to one end of the threaded portion. The head includ ...

Yasuhiro Nagata: Biosensor. Daikin, Wenderoth Lind & Ponack, August 21, 1990: US04950378 (283 worldwide citation)

An electrode refreshing arrangement of a biosensor includes a constant reverse bias voltage arranged to be supplied between a working electrode and a reference electrode, so as to thereby refresh the working electrode, that is, to remove the disturbance film or substance formed on the surface of the ...

Robert H Muller: Injection pen. Spruyt Hillen, Leonard Bloom, August 21, 1990: US04950246 (251 worldwide citation)

An injection pen that is suitable for being carried in the clothes of a user-patient for the selective use thereof. The pen includes a housing having a cartridge having a variable content disposed therein. The cartridge has an outlet formed therein. A piston is disposed therein for altering the flui ...

Ramon B Gustilo, James A Rand, Jeffrey G Roberts, Jennifer J Lackey: Modular knee joint prosthesis. Pravel Gambrell Hewitt Kimball & Krieger, August 21, 1990: US04950298 (247 worldwide citation)

A femoral component base having a pair of laterally spaced apart condylar portions, each of which has an external surface that is smoothly convexly curved anterior-posteriorly to match generally the distal profile of the anatomical femoral condyle and smoothly convexly curved laterally throughout it ...

Jonathan L McIntyre: Bone grafting units. Baker Maxham Jester & Meador, August 21, 1990: US04950296 (244 worldwide citation)

A bone grafting unit comprises a cortical shell having a selected outer shape and size for transplanting and a cavity formed therein for receiving a cancellous plug, and a cancellous plug fitted into said cavity in a manner to expose at least two surfaces thereof to the exterior of said shell.