David L Thompson: Body stimulator output circuit. Medtronic, Schroeder Siegfried Vidas & Arrett, October 16, 1984: US04476868 (148 worldwide citation)

A body implantable stimulator having an output capacitance. Provision is made to increase the charge rate of the capacitance for a predetermined period following an output stimulation signal.

James W Bracke, Kipling Thacker: Hyaluronic acid from bacterial culture. Diagnostic, Schroeder Siegfried Vidas & Arrett, May 14, 1985: US04517295 (108 worldwide citation)

Hyaluronic acid, a polysaccharide, is prepared in high yield from streptococcus bacteria by fermenting the bacteria under anaerobic conditions in a CO.sub.2 -enriched growth medium, separating the bacteria from the resulting broth and isolating the hyaluronic acid from the remaining constituents of ...

Elias Klein, Ronald L Wathen, Richard A Ward, Louis C Cosentino, Larry E Fuller, Felix J Martinez: Percutaneous implant for peritoneal dialysis. Renal Systems, Schroeder Siegfried Vidas & Arrett, December 18, 1984: US04488877 (105 worldwide citation)

An implant device for peritoneal dialysis which permits a flexible catheter to be removed and replaced without invasive surgery. The catheter is passed through a substantially rigid tubular percutaneous device and a flexible sleeve member which together form a continuous conduit from the body exteri ...

Louis C Cosentino, Felix J Martinez: Percutaneous implant. Renal Systems, Schroeder Siegfried Vidas & Arrett, November 29, 1983: US04417888 (92 worldwide citation)

An implantable device for providing communication between interior structures of the body and the exterior of the body, the device comprising a rigid tubular member of biologically compatible material including a transcutaneous stem portion defining a stem cavity therein and a plurality of subcutane ...

Patrick T Cahalan, Arthur J Coury: Tape electrode. Medtronic, Schroeder Siegfried Vidas & Arrett, July 5, 1983: US04391278 (86 worldwide citation)

An improved medical electrode particularly adaptable to tape-like configurations for use in sensing and stimulation applications in which the electrode is applied to the skin. An essential electrode component comprises a mixture of a polymerized form of 2-acrylamido-2-methylpropanesulfonic acid or o ...

James A Cox: Muscle stimulator. Medtronic, Schroeder Siegfried Vidas & Arrett, October 25, 1983: US04411268 (80 worldwide citation)

A system for inducing a desired functional contraction in muscle tissue while conditioning the contractile properties of that tissue for the desired functional contraction. Pacing stimulation signals are generated having parameters established by a desired functional contraction of particular muscle ...

John J Simmons: Seed coating machine. Schroeder Siegfried Vidas & Arrett, August 14, 1984: US04465017 (80 worldwide citation)

A seed coating machine comprising an upper mixing drum wherein a liquid adhesive coating is applied to seed and where the rate of application is regulated by a valve controlled by the seed feeder. Coated seed is dried to a state of tackiness and passed to a second, lower mixing drum. A variety of po ...

Louis C Cosentino: Porous titanium coating for blood access device. Renal Systems, Schroeder Siegfried Vidas & Arrett, September 20, 1983: US04405319 (79 worldwide citation)

An implantable blood access device has a matte titanium finish on the exterior subcutaneous surfaces thereof providing sites for tissue ingrowth. A preferred finish is a coating of porous titanium which may be manufactured by fusing titanium powder to the device.

Bruce P Amiot, Larry E Fuller, Felix J Martinez, Louis C Cosentino, William H Harm, Wayne I Nelson: Dialyzer reuse machine. Renal Systems, Schroeder Siegfried Vidas & Arrett, May 14, 1985: US04517081 (67 worldwide citation)

A dialyzer reuse machine comprising means for passing a series of liquid and gaseous fluids through the dialysate and blood compartments of the dialyzer at different flow rates according to a predetermined sequence for cleaning and disinfecting the dialyzer and means for accurately measuring the vol ...

Lawrence C Hudziak, Jerome T Hartlaub: Programmable body stimulation system. Medtronic, Schroeder Siegfried Vidas & Arrett, April 3, 1984: US04440173 (65 worldwide citation)

A body stimulation system including external components for generating and transmitting programming signals and implantable components including a signal generator with at least one alterable operating characteristic, a stimulation signal delivering system and circuit responsive to receive programmi ...