The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 2021
Filed:
Jun. 22, 2017
Baxter International Inc., Deerfield, IL (US);
Baxter Healthcare SA, Glattpark, CH;
Yuanpang Ding, Long Grove, IL (US);
Ryan Joseph Thomas, Ann Arbor, MI (US);
Anders John Wellings, Belleair Beach, FL (US);
James Anthony Sloand, Northbrook, IL (US);
Baxter International Inc., Deerfield, IL (US);
Baxter Healthcare SA, Glattpark, CH;
Abstract
A medical fluid delivery machine includes a pump interface having an actuation area for delivering positive or negative pressure to a medical fluid handling device; a pressure sensor positioned to measure pressure within the actuation area; a valve positioned to selectively vent the actuation area to atmosphere; and a control unit in signal communication with the pressure sensor and control communication with the valve, the control unit performing a sequence during pumping, wherein (i) application of positive pressure or negative pressure to the actuation area is stopped, the valve is switched to vent the actuation area to atmosphere, then switched to close the actuation area to atmosphere, and at least one pressure signal reading is taken via the pressure sensor, and (ii) a determination is made whether positive pressure or negative pressure to the chamber should be resumed based on the at least one pressure signal reading.