Baxter International Inc.

Baxter Healthcare Sa

Althin Medical, Inc.

Medtronic, Inc.

Novaflux Inc.

Baxter Healthcare Inc.

Bexter Healthcare S.a.

Bazter Healthcare Sa

Thomas D Kelly

Robert W Childers

Rodolfo G Roger

Waleed Mutasem El Sayyid

Shahid Din

Don Busby

Michael E Hogard

Justin Belanger Rohde

Ying-Cheng Lo

Shincy J Maliekkal

Harley D Johnson

Bruce A Peterson

William G Preston, Jr

Jean McEvoy Long

Matthew R Muller

Marc Steven Minkus

William Patrick Burns

Mark E Connell

Robert A Bedient

Angelito A Bernardo

Dalibor J Smejtek

Raymond Elsen

Thomas P Hartranft

Angel M Lasso

James Han

Yuanpang Samuel Ding

Atif M Yardimci

Suping Lyu

Donald D Busby

Donald A Smith

Mark E Jablonski

Katherine M Holian

Bryant J Pudil

Thomas Edward Meyer

Mohamed Emam Labib

Peter A Materna

Stanislav S Dukhin

Thore Falkvall

Waleed Musatem El Sayyid

Jeffrey B Grogan

Alan G Wolfe

William W Anderson

A blood treatment air purging system and method includes a level detector positioned and arranged to detect a low fluid level in a blood circuit indicating a high amount of air in the blood circuit; a blood pump operable with the blood circuit; a venous patient line of the blood circuit; and at least one blood circuit air vent valve, wherein the system and method are configured or programmed to (i) stop the blood pump, (ii) close the venous patient line, and (iii) open the at least one blood circuit air vent valve to atmosphere or a container when the low fluid level is detected, and (iv) run the blood pump to meter air through the at least one blood circuit air vent valve to atmosphere or the container.

Blood treatment air purging system and method

A hemodialysis system is disclosed. The hemodialysis system includes a dialyzer, a saline container including saline, and a disposable set comprising a blood pumping tube fluidly connected to a first end of the dialyzer, an arterial line fluidly connected to a first end of the blood pumping tube, a venous line fluidly connected to a second end of the dialyzer, a saline line fluidly connected to the blood pumping tube and the saline container, and a dialyzer line fluidly connected to a second end of the blood pumping tube and a second end of the dialyzer. The hemodialysis system also includes a dialysis instrument comprising an arterial line clamp, a venous line clamp, and a saline valve. The saline rinses blood out of the arterial line when the venous line clamp is closed, the arterial line clamp is opened, and the saline value is opened.

Hemodialysis system including a disposable set and a dialysis instrument

A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.

Balanced flow dialysis machine

A hemodialysis system includes a dialyzer; a dialysis fluid circuit including a fresh dialysis fluid pump, and a used dialysis fluid pump; a blood circuit including a blood pump operable with an arterial line upstream of the dialyzer, a medical fluid source in fluid communication with the arterial line between a patient end of the arterial line and the blood pump, a drip chamber located along a venous line; a blood rinseback sequence wherein blood is transferred to the patient by the medical fluid, wherein the medical fluid is introduced from its source into the arterial line between an arterial line patient end and the blood pump, and flowed through the dialyzer, through the venous drip chamber along the venous line; and a blood circuit priming sequence initiated in the blood circuit via the arterial line.

Blood rinseback system and method

A dialysis fluid system includes a dialysis fluid inlet; a dialysis fluid outlet; a pump positioned and arranged to pump dialysis fluid through the dialysis fluid inlet and the dialysis fluid outlet; and an inductive heater located between the dialysis fluid inlet and the dialysis fluid outlet, the inductive heater including a fluid flowpath positioned and arranged to receive non-heated dialysis fluid from the dialysis fluid inlet and to output heated dialysis fluid to the a dialysis fluid outlet, a conductive heater element located within the fluid flowpath so as to be or act as a secondary coil of a transformer, and a primary coil of the transformer located outside of the fluid flowpath and positioned so as to magnetically induce a current into the conductive heater element, causing the conductive heater element and surrounding fluid to heat.

Dialysis system having inductive heating

Embodiments of the invention pertain to cartridges, systems and methods for performing hemodialysis and related extracorporeal blood treatment modalities and therapies, in which blood flows in the inter fiber space and dialysate flows in the lumens of hollow fibers. Appropriate connectors and fitting orientations may be provided. There may be provided orbital distributors, fanning of fibers, and features to promote uniformity of fiber spacing in the fiber bundle. Orbital distributors may contain contoured surfaces, flow redirectors, non-uniform-conductance flow elements, through-wall distributors, and other features. There may be subdivision of the fiber bundle into two groups of fibers with separate control fluid to each group. Appropriate systems may be provided for various therapies. Flow past the fibers may be parallel, transverse or other configuration. These various features may enable long-term application to all dialysis and ultrafiltration related therapies, and also to other therapies and to applications including implantables, portables and wearables.

Cartridges and systems for outside-in flow in membrane-based therapies

A hemodiafiltration system with a disposable pumping unit is disclosed. An example system includes a medical fluid pump actuator, a medical fluid heater, a blood filter and a disposable unit. The example disposable unit includes a medical fluid cassette portion including a medical fluid cassette housing configured to be operatively connected to the medical fluid pump actuator to pump medical fluid through the medical fluid cassette portion when the medical fluid cassette portion is in fluid communication with a medical fluid source. The example medical fluid cassette portion is also configured to be placed in fluid communication with the blood filter and with an extracorporeal circuit communicating with the blood filter, the fluid communication enabling hemodiafiltration to be performed. The example disposable unit also includes a heater bag configured to be placed in operable communication with the medical fluid heater and in fluid communication with the medical fluid cassette portion.

Hemodiafiltration system with disposable pumping unit

A hemodialysis system is disclosed. The hemodialysis system includes a disposable set including a blood pumping tube, a fresh dialysate pumping tube, and a spent dialysate pumping tube. The hemodialysis system also includes a dialysis instrument including a blood pump head, a fresh dialysate pump head, a spent dialysate pump head, a first motor positioned and arranged to operate the blood pump head, a second motor positioned and arranged to operate the fresh dialysate pump head, and a third motor positioned and arranged to operate the spent dialysate pump head. When the disposable set is loaded into the dialysis instrument, the blood pumping tube comes into registry with the blood pump head, the fresh dialysate pumping tube comes into registry with the fresh dialysate pump head, and spent dialysate pumping tube comes into registry with the spent dialysate pump head.

Apparatuses, systems, and methods for the performance of kidney replacement therapy having or using a dialyzer, control components, sorbent cartridge, and fluid reservoirs configured to be of a weight and size suitable to be worn or carried by an individual requiring treatment are disclosed. The system has a controlled compliance dialysis circuit, where a control pump controls the bi-directional movement of fluid across a dialysis membrane. A first sorbent cartridge is provided for use in a portable treatment module having activated carbon and zirconium oxide. The system also provides for the monitoring of an inlet and outlet conductivity of a sorbent cartridge containing urease to provide a facility to quantify or monitor the removal of urea by a detachable urea removal module.

Modular hemodialysis system

Systems and methods for the performance of kidney replacement therapy having or using a dialyzer, control components, sorbent cartridge and fluid reservoirs configured to be of a weight and size suitable to be worn or carried by an individual requiring treatment are disclosed. The system for performing kidney replacement therapy has a controlled compliance dialysis circuit, where a control pump controls the bi-directional movement of fluid across a dialysis membrane. The dialysis circuit and an extracorporeal circuit for circulating blood are in fluid communication through the dialysis membrane. The flux of fluid moving between the extracorporeal circuit and the dialysis circuit is modified by the rate at which the control pump is operating such that a rate of ultrafiltration and convective clearance can be controlled. The system provides for the monitoring of an inlet and outlet conductivity of the sorbent cartridge to provide a facility to quantify or monitor the removal of urea by the sorbent cartridge.

Hemodialysis system having a flow path with a controlled compliant volume

A method for priming a renal therapy machine is disclosed. The method includes communicating a source of a physiologically compatible solution with a blood circuit and moving the physiologically compatible solution from the source to the blood circuit. The method also includes moving the physiologically compatible solution through the blood circuit to prime the blood circuit. The method further includes moving the physiologically compatible solution from the blood circuit though porous fibers of a blood filter, causing air to be purged from the blood circuit and into a dialysis fluid circuit portion of the blood filter.

Renal therapy machine and method including a priming sequence

Dialysis systems that remove air from a blood circuit are disclosed herein. In an embodiment, a dialysis system includes a dialysis fluid circuit, a blood circuit including an arterial line, a venous line, and an enclosure in fluid communication with the venous line, the enclosure configured to release air through a hydrophobic vent for priming the blood circuit, a blood pump configured to pump fluid through at least the arterial line, a first valve operable with the arterial line and a second valve operable with the venous line, and a pumping and valving algorithm operated after priming to remove air from the blood circuit to control the first and second valves and the blood pump to replace priming fluid with blood from a patient.

Blood treatment air purging systems

A blood treatment machine includes a blood pump; an arterial line in fluid communication with the blood pump; a venous line; and a heartbeat evaluation system including (i) a first electrode coupled to the arterial line or to a patient, (ii) a second electrode coupled to the venous line, (iii) electronic circuitry communicating electrically with the first electrode and the second electrode to sense an electrical heartbeat signal generated by the patient, and (iv) signal processing configured to use the sensed heartbeat signal to calculate at least one of (a) heart rate, (b) respiration, (c) stroke volume, (d) cardiac output, or (e) central blood volume.

Blood treatment machine having electrical heartbeat analysis

Growing community of inventors

Highland Park, IL, United States of America

Thomas D Kelly