Fresenius Medical Care Holdings, Inc.

Respironics, Inc.

Michael James Beiriger

Ryan Christopher Kaintz

Kulwinder S Plahey

Douglas Mark Zatezalo

Robert Dale Parks

Harold Frederick Sandford

Sean Farrell

Joseph Michael Fallon

Benjamin J Lipps

Stephen Richard Ash

David John Carr

Palmer David Updyke

Thomas A Sullivan

James Matthew Mullner

Benjamin Joseph Lipps

Peter Douglas Hill

Jiunn Teo

Bernie F Hete

Cheryl Ford

Norma J Ofsthun

Amanda K Stennett

John A Barron

Edward J Bires

David J Carr

John A Iii Barron

Stephen R Ash

David Carr

This disclosure relates to medical fluid cassettes and related systems and methods. In certain aspects, a medical fluid cassette includes a base having a first region and a second region, a first membrane overlying the first region of the base, and a second membrane overlying the second region of the base. The second membrane is configured to rebound away from the base when a force used to press the second membrane toward the base is released.

Medical fluid cassettes and related systems and methods

A medical system includes a medical fluid pumping machine comprising a pressure sensor, a medical fluid line set comprising a fluid line in fluid communication with a fluid passage formed between a diaphragm and a base, the medical fluid line set being configured to be connected to the medical fluid pumping machine in a manner such that the diaphragm of the medical fluid line set aligns with the pressure sensor of the medical fluid pumping machine, and a member configured to apply a positive force to the pressure sensor when the medical fluid line set is connected to the medical fluid pumping machine and the fluid passage is at atmospheric pressure.

Sensing negative pressure with a pressure transducer

This disclosure relates to fluid line sets and related methods. In certain aspects, the fluid line sets include a vial adapter connected to a first end of a fluid line, and a cap removably attached to a second end of the fluid line such that the cap seals the second end of the fluid line. The vial adapter includes a base, a spike extending from a central region of the base, and a sidewall extending from the base and substantially surrounding the spike. The base and the side wall at least partially define a cavity configured to receive a portion of a vial. The cap includes a deformable portion at least partially defining a gas chamber, and the cap is configured so that deformation of the deformable portion causes gas to be forced from the gas chamber to the vial adapter via the fluid line.

Non-vented vial drug delivery

In certain aspects, a dialysis device includes a flow channel that includes a disposable flow-through container. The flow channel and the container contain a fluid and are in fluid communication with each other. The dialysis device also includes a toroid configured to accept, through an aperture of the toroid, at least a portion of the container. The dialysis device also includes an electromagnetic coil wrapped around the toroid, such that the coil passes around an outer surface and an inner surface of the toroid, and covers less than the entire circumference of the toroid. The coil is configured to generate an electromagnetic signal. The coil is also configured to concentrate the electromagnetic signal on the fluid in the container such that the electromagnetic signal traverses the container in a direction that is substantially parallel to the direction of flow of the flow channel. The coil is also configured to read the electromagnetic signal after it has traversed the fluid in the container.

Measuring conductivity of a medical fluid

A dialysis system including a housing, a dialysate pump disposed in the housing, and a dialysate line configured to be operatively connected to the dialysate pump such that the dialysate pump can pump dialysate through the dialysate line when the dialysate line is in fluid communication with a dialysate source.

Dialysis systems, components, and methods

In one aspect of the invention, a method includes determining an amount of carbon dioxide (CO) in dialysate flowing through a dialysis system using a COsensor associated with the dialysis system, determining, using a pH sensor associated with the dialysis system, a pH level of the dialysate, and calculating a level of bicarbonate in the dialysate based at least in part on the determined amount of COmeasured in the gas and the determined pH level of the dialysate.

Measuring chemical properties of a sample fluid in dialysis systems

This disclosure relates to drug vial spikes, fluid line sets, and related systems. In some aspects, a fluid line set includes a frame, multiple spikes extending from the frame, and multiple fluid lines connected to the frame. The frame is configured to hold the fluid lines in a spaced apart configuration.

Drug vial spikes, fluid line sets, and related systems

This disclosure relates to drug delivery methods and related products. In some aspects, a method includes selecting a drug vial combination by comparing a prescribed drug dosage to a dosing schedule, and delivering substantially all of the first drug from each of the selected drug vials to a patient by operating a pump of a drug delivery device to which the drug vials are connected.

Drug delivery methods and related products

A peristaltic pump for use with tubing. The pump includes a raceway and a rotatably mounted rotor that form a passageway therebetween for the tubing. A plurality of roller assemblies is pivotably and eccentrically mounted to the rotor. Each roller assembly has a length, and includes a roller having an outer surface disposed to selectively roll along said tubing when received in the passageway. At least one compliance mechanism is coupled to and contained substantially within the length of each roller assembly. The compliance mechanism has first and second ends coupled to the rotor and the roller assembly, respectively. The compliance mechanism is adapted and disposed to bias the associated roller assembly outward relative to the rotor, such that a force applied to the roller assembly pivoting the roller assembly inward against the force of the compliance mechanism.

Peristaltic pump arrangement and pump rollers

Growing community of inventors

Pittsburgh, PA, United States of America

Michael James Beiriger