Michael S Morrissey

US Patent:

20210220539, Jul 22, 2021

Filed:

May 16, 2019

Appl. No.:

17/055864

Inventors:

- Deerfield IL, US
- GLATTPARK (Opfikon), CH
Michael P. MORRISSEY - Algonquin IL, US

International Classification:

A61M 1/16

Abstract:

A dialysis system includes a source of water; a concentrate for mixing with the water a disposable set including a pumping portion, a water line in fluid including a filter for filtering the water, a concentrate line in fluid communication with the source of water and the pumping portion; and a medical fluid delivery machine including a pump actuator operable with the pumping portion, a pressure sensor, and a control unit programmed to cause (i) the pump actuator to pump water to wet a membrane of the filter, thereafter remove at least some of the water from the filter, and pressurize a portion of the water line leading from the pumping portion to the filter, (ii) the pressure sensor to sense pressure in the pressurized portion of the water line, and (iii) an analysis of the sensed pressure to be performed to evaluate the integrity of the filter.

US Patent:

20190388611, Dec 26, 2019

Filed:

Jun 20, 2018

Appl. No.:

16/013228

Inventors:

- Deerfield IL, US
- Glattpark (Opfikon), CH
Thomas Edward Dudar - Palatine IL, US
Yuanpang Samuel Ding - Long Grove IL, US
Houzhi Luo - Wuxi, CN
Michael Patrick Morrissey - Algonquin IL, US
Jeffrey Scott Packard - Woodstock IL, US

International Classification:

A61M 5/148
A61M 5/168

Abstract:

An infusion device for dispensing fluid at a predetermined flow rate includes an elastic bladder, a pressure regulator, and a flow restrictor. The elastic bladder includes a bladder volume portion and a bladder outlet, and the elastic bladder stores fluid in the bladder volume portion and dispenses fluid through the outlet at a bladder pressure. The pressure regulator is in fluid communication with the outlet of the elastic bladder. The pressure regulator includes a fluid inlet and a fluid outlet. The fluid inlet is coupled to the bladder outlet to receive fluid from the bladder. The flow restrictor is in fluid communication with the fluid outlet. The flow restrictor and the pressure regulator cooperate to discharge fluid from the flow restrictor at a predetermined flow rate.