Baxter International Inc.

Baxter Healthcare Sa

Conmed Corporation

Richard E Kienman

Brian Lauman

Donald D Busby

Jennifer S Lindsay

Rodolfo G Roger

Gideon Hecht

John Bedingfield

Douglas W Reitz

James S Slepicka

William Chan

Dan Roush

Michael J Decesare

David Gonzalez

Alistair M Macdonald

Richard Medero

Robert W Childers

Yuanpang Samuel Ding

Peter A Hopping

Atif M Yardimci

Michael E Hogard

John Edward Steck

Andrey Kopychev

Mark Perry

Angel M Lasso

Ian Richardson

John K Sieh

Michael J DeCesare

Alistair Malcolm MacDonald

George F Bobart

Brian C Lauman

Mehmet B Ozer

Amy L Twining

Mark C Perry

William W Chan

Daniel E Rousch

Amy Twining

John A Bedingfield

A single cell power unit for a motorized surgical power tool includes a single cell power unit enclosure. A high temperature battery cell is mechanically supported within and disposed at about a center of the single cell power unit enclosure. An electrical connector having a plurality of connector pins is configured to couple to a mating electrical connector of a tool part having a motor. A motorized surgical handpiece tool which prevents the motor from operating when the power unit is removed, a method to start a multi-phase brushless sensorless motor of a surgical hand piece tool in a controlled manner, a power unit for a motorized surgical power tool with a battery insulated by a flexible circuit boards, and a safety switch system for a motorized surgical power tool with a lever magnet motor speed control are also described.

Autoclave tolerant battery powered motorized surgical hand piece tool and motor control method

A peritoneal dialysis system is provided that includes a hardware unit, a disposable unit received by the hardware unit, and a controller. The hardware unit includes a recessed area, a piston having a contact surface, a pneumatic source for supplying a negative pressure, and an actuator configured to move the contact surface of the piston into and out of at least a portion of the recessed area. The disposable unit includes an outer member fitted at least partially within the recessed area of the hardware unit and a moveable membrane positioned between the contact surface of the piston and the outer member when the disposable unit is received by the hardware unit. The controller is configured to cause the pneumatic source to apply the negative pressure to the moveable membrane so as to conform the moveable membrane to a shape of the contact surface of the piston and follow the contact surface when the piston is moved towards and away from the outer member fitted at least partially within the recessed area.

Automated dialysis system using piston and negative pressure

A dialysis fluid heating system includes a plurality of conductive tubes; first and second end caps located at first and second ends of the tubes, respectively, the first end cap including a dialysis fluid inlet and a dialysis fluid outlet, the end caps and the tubes configured such that dialysis fluid can flow from the fluid inlet of the first end cap, through at least one first tube to the second end cap, and through at least one second tube back to the first end cap; a conductive wire wound around an outside of the conductive tubes; and electronics configured to supply power to the conductive wire, the wire forming a primary coil of a transformer, the tubes forming a secondary coil of the transformer.

Dialysis fluid heating systems

A method for operating a medical fluid machine, the method comprising: (i) if alternating current ('AC') power is available, charging a battery, if needed, and powering the medical fluid machine with the AC power; and (ii) if AC power is not available (a) if fuel cell power is available, charging the battery, if needed, and powering the medical fluid machine with the fuel cell power; and (b) if fuel cell power is not available, powering the medical fluid machine using battery power until the AC power or fuel cell power is available.

Method for powering portable dialysis machine

A fuel-cell powered medical fluid processing machine or dialysis machine is disclosed. The machine is intended for remote or rural areas where standard household or utility power is not available or is subject to interruption. The fuel cell is powered by hydrogen or other source of protons, or may instead be powered by methanol or ethanol, such as a direct methanol fuel cell. The fuel cell may be operated directly, as in powering a portable, wearable dialysis device, or may be operated indirectly, to generate and store power in an electric power storage device of the medical fluid or dialysis device. The medical fluid processing machine or dialysis machine may include circuitry allowing for use by household or utility power while also including a fuel cell for use when other power is not available. A catalytic heater may be used to warm the dialysis fluid.

Portable power dialysis machine

A dialysis system instrument includes a dialysis instrument, a disposable pumping and valving cassette apparatus operable with pumping and valving actuators of the dialysis instrument, the disposable cassette including an electronic cell and electronics associated with the electronic cell, the electronics configured to determine an electrical property of a solution flowing through the electronic cell of the disposable apparatus.

Dialysis fluid measurement systems using conductive contacts

A dialysis fluid heating system includes a dialysis fluid heater; a dialysis fluid carrying element in operable communication with the dialysis fluid heater to heat a dialysis fluid; and a logic implementer configured to control the heater using (i) a heater input determined from a dialysis fluid temperature delta and a dialysis fluid flowrate, and (ii) a potential adjustment of the temperature delta using a measured dialysis fluid outlet temperature.

Dialysis fluid heating algorithms

A dialysis fluid heating system includes a dialysis fluid heater; a heating portion of a dialysis fluid carrying set, the heating portion configured to be placed in contact with a surface of the dialysis fluid heater to heat a dialysis fluid; a pneumatic source connected to the dialysis fluid heater; and a logic implementer configured to cause the pneumatic source to apply a negative pressure between the heating portion and the surface of the dialysis fluid heater.

Dialysis fluid heating using pressure and vacuum

Growing community of inventors

Tampa, FL, United States of America

Richard E Kienman