Title:
Air detection systems and methods for detecting air in pumps of injection systems
Document Type and Number:
Japanese Patent JP6306566
Kind Code:
B2
Abstract:
Various systems and methods for detecting air in a chamber of an infusion system are disclosed. In one embodiment, a determination is made that air is contained in the chamber on the basis of a change in the average force exerted against the plunger utilizing a derivative spike for event detection and a systematic reduction in the average force to confirm the nature of the change. In another embodiment, a determination is made that the chamber contains air when a difference between the current force profile and a baseline force profile crosses a threshold. In an additional embodiment, a force profile is classified as being an air force profile or a liquid force profile based on extracted features of the force profile.
Inventors:
Rutti, Timothy El
Marquee, Brian Gee
Belkin, Anatoly S
Kotnik, Paul Tee
Heil, Mohammed M
Marquee, Brian Gee
Belkin, Anatoly S
Kotnik, Paul Tee
Heil, Mohammed M
Application Number:
JP2015503508A
Publication Date:
April 04, 2018
Filing Date:
March 27, 2013
Export Citation:
Assignee:
ICU Medical Incorporated
International Classes:
A61M5/36
Domestic Patent References:
| JP4231966A | ||||
| JP2006517423A | ||||
| JP2010536497A | ||||
| JP2010509984A | ||||
| JP2010501286A | ||||
| JP2007520270A |
Foreign References:
| US20100214110 | ||||
| US20050145009 | ||||
| US20040120825 |
Attorney, Agent or Firm:
Kawaguchi International Patent Office