Baxter International Inc.

Baxter Healthcare Sa

Fenwal, Inc.

Douglas W Reitz

Robert W Childers

Rodolfo G Roger

Patrick Lee

John Edward Steck

Andrey Kopychev

John Biewer

Austin J Orand

Mark William Foohey

Randy K Murphey

Kyungyoon Min

Robert J Cantu

Richard R Gilbert, Ii

Atif M Yardimci

Richard E Kienman

Jennifer S Lindsay

Dan Roush

John F Steck

Ying-Cheng Lo

Yuanpang Samuel Ding

Thomas Edward Dudar

Steven C Jepson

Richard L West

Brian Lauman

Birendra K Lal

Scott R Ariagno

Craig L Sandford

Paul J Soltys

Gideon Hecht

Donald D Busby

Dilip H Shah

Michael R Prisco

James S Slepicka

Robin Gail Pauley

David W Pennington

Timothy J Patno

Edwin Chim

Richard A Rollins

Robert A Clarke

Samuel Ding

Gino Cicchello

William Chan

Meir Dahan

James C Richardson

Brian C Lauman

Kathryn M Button

Robert I Brown

Arch Sites

Mihir Sheth

Ricchard R Gilbert, Ii

Audrey Kopychev

Mehmet B Ozer

Amy L Twining

George F Bobart

John Joseph Belle

Robin Pauley

John Steck

Amy Twining

Daniel E Rousch

John E Steck

Roger Rodolfo

Richard Gilbert

William W Chan

A dialysis system including a disposable fluid pumping cassette including at least one flexible membrane attached to a housing and at least one port extending from the housing, the at least one port including a spike; at least one dialysis fluid supply in fluid communication with at least one tubing and tubing connector; an autoconnection device including a shuttle for moving the at least one tubing and tubing connector towards the spike of the at least one port, the autoconnection device including at least one lead screw in mechanical communication with the shuttle, a motor and power transmission equipment to transmit power from the motor to the at least one lead screw; and a controller programmed to operate the motor to move the at least one tubing and tubing connector towards the spike of the at least one port of the disposable fluid pumping cassette.

Dialysis system having an autoconnection mechanism

A system for automatically connecting tubing to a medical fluid machine includes at least one fluid container including a tube having a cap on an end of the tube, a shuttle configured to receive the tube, a driving mechanism configured to translate the shuttle, a cap removal device configured to remove the cap from the end of the tube, and a control unit programmed to cause (i) the driving mechanism to translate the shuttle holding the tube in a first direction towards the cap removal device so that the cap removal device can engage the tube cap, (ii) the driving mechanism to translate in a second direction away from the cap removal device so that the cap removal device removes the cap from the end of the tube, and (iii) the driving mechanism to translate the shuttle in the first direction with the cap removed from the tube so that the tube can be mated with the medical fluid machine.

Medical fluid machine with supply autoconnection

A dialysis system includes a dialysis machine including at least one fluid pump, and an autoconnection mechanism including a moveable holder; a plurality of pierceable connectors each held by the moveable holder of the autoconnection mechanism, each of the pierceable connectors in fluid communication with a source of medical fluid; a plurality of spikes each held fixed by the dialysis machine, each of the spikes in fluid communication with a disposable component that is positioned and arranged to operate with the at least one fluid pump; and wherein the moveable holder is moved automatically by the autoconnection mechanism, so that (i) the spikes pierce the pierceable connectors and (ii) the sources of medical fluid can communicate with the disposable component positioned and arranged to operate with the at least one fluid pump.

Dialysis system having autoconnection

A medical fluid system including: fluid containers and a tube extending from same, each tube including a cap; a pumping cassette including port spikes; a medical fluid machine including: occluders; a shuttle configured to receive the tubes, wherein each tube is associated with one of the occluders; a driving mechanism translating the shuttle; a cap removal device between the cassette and the shuttle; and a control unit programmed to cause: (i) the occluders to pinch their tubes, (ii) cause the driving mechanism to translate the shuttle towards the fluid pumping cassette, the cap removal device engaging the tube caps, (iii) the driving mechanism to translate the shuttle away from the fluid pumping cassette and cap removal device, pulling the tube caps off of the tubes, and (iv) the driving mechanism to translate the shuttle back towards the fluid pumping cassette for the port spikes to spike the occluded tubes.

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 medical fluid autoconnection method includes: enabling acceptance a pierceable connector that is capable of fluidly communicating with a source of medical fluid into a moveable holder; temporarily fixing a spike to a medical fluid pumping machine; automatically detecting whether the pierceable connector has been placed into the moveable holder; if the pierceable connector is sensed as being placed in the moveable holder, moving the holder so that the spike pierces the pierceable connector; and enabling medical fluid to be pumped from the source through the connected spiked and connector.

Medical fluid autoconnection and autoidentification method

A fluid dispensing machine, such as a peritoneal dialysis or hemodialysis machine, includes a dispenser or cassette that pumps a medical fluid for dialysis or other treatments for patients. The machine includes and uses an autoconnect device for connecting containers of liquid, such as bags of dialysis fluid or medication fluids, to the machine, while maintaining the sterility of the connection. The autoconnect device removes the cap from the fluid bag and pierces a sealing membrane on tubing from the bag. This makes it easier for patients to receive treatment, especially home treatment. The cassettes preferably have tubing ports with integral spikes for piercing the membrane on tubing from bags of liquids. The ports may be staggered for sequential engagement with the spikes. Other embodiments are useful for dispensing other liquids from other types of dispensing or pumping machines.

Fluid delivery system with spiked cassette

A medical fluid machine with supply autoconnection, the machine comprising: a cassette-receiving wall; a disposable cassette held firmly by the wall, the disposable cassette including a port spike, the port spike fitted with a spike cap; a translating shuttle including a channel sized to hold a portion of a supply tube and including a fixture for releasably holding a supply tube end; a supply tube including an end configured to be releasably held by the fixture of the channel of the translating shuttle, the supply tube fitted with a supply tube cap; a cap removal device selectively positionable between the disposable cassette and the translating shuttle; and a controller programmed to (i) translate the shuttle holding the supply tube at the supply tube end towards the disposable cassette, so that the cap removal device is likewise moved towards the disposable cassette and the spike cap of the disposable cassette is engaged, (ii) translate the shuttle holding the supply tube at the supply tube end away from the disposable cassette and the cap removal device, so that the cap removal device can pull the spike cap off of the port spike and the tube cap off of the tube end, and (iii) translate the shuttle back towards the disposable cassette to allow the port spike of the cassette to spike the tube end.

A fluid dispensing machine, such as a peritoneal dialysis or hemodialysis machine, includes a dispenser or cassette that pumps a medical fluid for dialysis or other treatments for patients. The machine includes and uses an autoconnect device for connecting containers of liquid, such as bags of dialysis fluid or medication fluids, to the machine, while maintaining the sterility of the connection. The autoconnect device removes the cap from the fluid bag and pierces the scaling membrane on tubing from the bag. This makes it easier for patients to receive treatment, especially home treatment. Other embodiments are useful for dispensing other liquids from other types of dispensing or pumping machines.

Fluid delivery system with autoconnect features

A disposable pumping cassette in one embodiment includes a pump chamber; and a valve chamber in communication with the pump chamber, the valve chamber including an inlet and first and second outlets. A disposable pumping cassette in another embodiment includes a first valve chamber including an inlet and first and second outlets; and a second valve chamber including an inlet and an outlet, the second valve chamber openable to allow dialysis fluid to flow through one of the first and second outlets of the first valve chamber, through the outlet of the second valve chamber. A disposable pumping cassette in a further embodiment includes a valve chamber including a fluid inlet and first and second fluid outlets; and a flexible sheet openable to open and close only one of the first and second outlets.

Dialysis cassette having multiple outlet valve

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

A medical fluid machine, such as a dialysis machine, includes a pump that pumps a medical fluid and sterile water or other disinfecting liquid, such as ozonated water, for flushing and reconditioning the medical fluid machine. The machine may also include a heater that heats the medical fluid or disinfecting solution in order to kill bacteria and other microorganisms that may contaminate the machine after use. Disinfecting the machine, and a disposable kit used with the machine, may allow re-use of the disposable within a reasonable amount of time after completion of the disinfecting procedure. Dialysate treated with ultra-violet light or water with low concentrations of ozone also helps make the disposable kits suitable for reuse.

Extended use dialysis system

Flow-through systems for processing biological fluid are disclosed. The flow-through systems include a removal device in the flow path for removing unwanted compounds and agents. The removal device includes a removal media contained within a housing made of two separate portions sealed together. The housing is maintained in a substantially vertical disposition, thereby ensuring substantially uniform and complete exposure of the fluid to the media.

Flow-through removal device and system using such device

Blood processing systems and methods rotate a processing chamber on a rotating element. The processing chamber includes a first compartment and a second compartment. Blood is conveyed into the first compartment for centrifugal separation into components. A liquid free of blood occupies the second compartment to counter-balance the first compartment during rotation on the rotating element. In one embodiment, the second compartment is served by a single fluid flow access. Prior to use, the single access is coupled to tubing, through which a vacuum is drawn to remove air from the second compartment. While the vacuum exists, communication is opened between the tubing and a source of liquid. The vacuum draws the liquid into the second compartment through the single access, thereby priming the second compartment for use.

Blood processing system

Growing community of inventors

Green Oaks, IL, United States of America

Douglas W Reitz