Minntech Corporation

Renal Systems, Inc.

Bruce P Amiot

Louis C Cosentino

Felix J Martinez

Larry E Fuller

William H Harm

Raymond F Cracauer

Wayne I Nelson

Improvements and accessories for a septum closed T-shaped blood access device adapted for implantation into a patient. The implantable device has a stem portion extending above the skin of the patient and defining a septum closed opening into the device. The improvements include an improved septum having a groove in the side thereof encircling the septum and an elastomeric ring carried within the side groove, an improved needle assembly which provides access to the circulatory system through the septum, and a flexible cap for sealing the stem of the implantable device from the outside atmosphere which may be fitted in place or removed without the necessity of specialized tools.

Blood access systems

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 volume of the blood compartment upon completion of the dialyzer cleaning steps. Capacitive probe and load cell embodiments of the volume measuring means are disclosed. A specially designed jet pump permits a pressure leak test and dilution of stock chemicals to be performed using only tap water pressure as a source of motive force.

Dialyzer reuse machine

Growing community of inventors

St. Louis Park, MN, United States of America

Bruce P Amiot