Fresenius Medical Care Holdings, Inc.

Fresenius Medical Care Deutschland Gmbh

Fresenius Medical Care North America

Colin Weaver

Martin Joseph Crnkovich

David Yuds

Daniel Schmidt

Melvin D Jensen

Mohsen Reihanifam

Elliott Alber

Christian Schlaeper

Lynn E Jensen

Thomas Irvin Folden

Michael Emmanuel Kotsos

Philip Scott James

Deloy Lindley

Joseph J Molinari

Nelson Sun Au

Nima Nouri

John Marion Frazer

Su Ting Lau

In one aspect, a peritoneal dialysis (PD) system includes a housing that receives a disposable cassette, a plurality of pinch valves that receive respective sections of fluid tubing of the disposable cassette, an air port that forms an airtight seal with an air line of the disposable cassette, an air pump that alternatingly pushes air out of the air port and pulls air in from the air port, and a computer processor that controls the plurality of pinch valves and the air pump such that the cassette performs a dwell phase in which the diaphragm pump pumps fresh dialysate from a dialysate bag to a heater bag, a fill phase in which the diaphragm pump pumps the fresh dialysate from the heater bag to a patient line, and a drain phase in which the diaphragm pump pumps spent dialysate form the patient to a drain.

Peritoneal dialysis system with constant volume disposable pump

In some embodiments, a medical system includes a dialysis machine having at least one outer surface to be disinfected at a given location, at least one disinfection sensor connected to the dialysis machine at the given location, the disinfection sensor including two or more electrode in fluid contact with the outside surface of the dialysis machine, and a conductivity sensor component in electrical contact with the two or more electrodes, the conductivity sensor component configured to send an electrical signal indicating a conductivity of a liquid on an outside surface of the dialysis machine and in contact with the two or more electrodes, a processor configured to receive the electrical signal and thereby determine a disinfection status of the given location, and a user interface configured to indicate the disinfection status of the given location.

Integrated cross contamination sensors

A dialysis machine comprising: a power supply for providing power to the dialysis machine, the power supply including a power supply cable that includes a first ground wire electrically connected to a first ground prong; and a hydraulics system for making dialysate, supplying the dialysate to a dialysate circuit, and draining spent dialysate from the dialysate circuit, the hydraulics system including a hydraulics grounding cable that includes a second ground wire electrically connected to a second ground prong.

Electrical plug for a dialysis machine

This disclosure relates to dialysis systems and methods. In some implementations, a dialysis system includes a dialysis machine with a fluid line and a drain line, a blood line set configured to be connected to the dialysis machine, and a drain apparatus coupled to the dialysis machine. The drain apparatus includes a chamber configured to receive an end of a patient line of the blood line set, an inlet line, an outlet line, and a valve. The inlet line has a first end configured to be coupled to the chamber and a second end configured to be coupled to the fluid line of the dialysis machine. The outlet line has a first end configured to be coupled to the chamber and a second end configured to be coupled to the drain line of the dialysis machine. The valve is configured to control flow of fluid through the outlet line.

Drain apparatus for hemodialysis machines

A device that allows for patient identification comprising a housing, a biometric sensor, coupled to the housing. the biometric sensor is configured to detect a biometric feature of a patient. The device further comprises a signal transmitter configured to transmit data related to the detected biometric feature to a medical treatment machine for carrying out a medical treatment on the patient. The patient identification device is configured to be secured to the patient during the dialysis treatment.

Wetness detection with biometric sensor device for use in blood treatment

A detector assembly configured for use in a dialysis (e.g., a hemodialysis) system is disclosed herein. The detector assembly including a wetness detector configured to detect blood, fluid, a leak, etc. The detector assembly being operatively coupled to, and more preferably, including an inertial measurement unit (IMU). Thus arranged, the detector assembly is configured to measure, read, obtain, provide, etc. additional information or data during a dialysis treatment, which information or data can be transmitted and/or used to, for example, provide greater insight into the system and/or to make better decisions. In one embodiment, the detector assembly can be used to determine when and how a patient is moving and feed that information back to the dialysis machine. In use, the information or data can be used in combination with other information to make an improved determination as to the requirement for an alert and/or stoppage of the dialysis treatment.

Wetness detector with integrated inertial measurement unit configured for use in a dialysis system

A drip chamber is provided that includes a hollow body and a nucleation column extending into the interior of the hollow body or formed on the inner surface of a drip chamber sidewall. The nucleation column can be formed with, or treated by a treatment to include, microfeatures or other surface properties that provide nucleation sites for the nucleation and amalgamation of microbubbles. The drip chamber can include a bubble catcher in the bottom of the hollow body and the nucleation column can extend from the bubble catcher into the interior of the hollow body. Methods of making such drip chambers are also provided.

Removal of microbubbles through drip chamber nucleation sites

A leak detector is provided that is incorporated into the wheels of a moveable medical device and/or cart or cabinet therefor. By incorporating a leak detector into the wheels themselves of the movable medical device, the leak detector, despite movement of the medical device, is suitably located to locate leaks with respect to the medical device at all times and requires no additional setup. The leak detector can further be tested by and interface with the moveable medical device to ensure the leak detector is in working condition and provide a convenient interface for a user. Additionally, by using this technology on each of the multiple wheels of a moveable medical device, the detectable area may be bigger than a leak detector at only one location.

Leak detector on movable medical device

Electrical plug for a medical device

A medical wetness sensing device includes a base adapted to be disposed on a wearer of the medical wetness sensing device. The base includes a first electrical conductor and a second electrical conductor electrically insulated from the first electrical conductor. The first electrical conductor includes a hinge portion enabling a first portion of the first electrical conductor to deflect, at the hinge portion, relative to a second portion of the first electrical conductor. The medical wetness sensing device includes a controller electrically connected to the first electrical conductor and the second electrical conductor. The controller is configured to detect a presence or an absence of a medical fluid electrically connecting the first and second electrical conductors.

Medical wetness sensing devices and related systems and methods

A medical wetness sensing device includes a cover, a first and second electrically conductive portions housed in the cover, an electrically insulative portion housed in the cover, and a compressible portion. The cover defines an outer surface. The first and second electrically conductive portions are exposed along an inner surface of the device. The first and second electrically conductive portions are configured to transmit a test signal indicating an absence or presence of a liquid on the inner surface. The electrically insulative portion electrically isolates the first electrically conductive portion from the second electrically conductive portion. The compressible portion is flexible, compressible, and configured such that the inner surface of the device is conformable to skin of a wearer of the device. The compressible portion is formed by at least one of the cover, the first and second electrically conductive portions, and the electrically insulative portion.

Growing community of inventors

Pleasanton, CA, United States of America

Colin Weaver