Method for discriminating between operating conditions in...

Pumps – With signal – indicator – or inspection means

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C604S031000, C604S065000, C604S067000

Reexamination Certificate

active

07452190

ABSTRACT:
A method is disclosed for determining the operating condition of a medical pump based on data derived from a pressure sensor and a position sensor. The pressure sensor generates pressure data by sensing the force on the pumping element. The position sensor generates position data by tracking the pumping cycle and determining the position of the pumping element. The pump pressure data and pump position data are processed and the calculated results compared with a pre-determined threshold value to determine the operating condition of the pump. The three main types of operating conditions of concern are the following: normal condition, where liquid is present and no leaks exist in pumping chamber; leak condition, where liquid is present but a leak exists in the pumping chamber; and air stroke condition, where the chamber contains some air.

REFERENCES:
patent: 4927411 (1990-05-01), Pastrone et al.
patent: 5190522 (1993-03-01), Wojcicki et al.
patent: 5464392 (1995-11-01), Epstein et al.
patent: 5554013 (1996-09-01), Owens et al.
patent: 6475178 (2002-11-01), Krajewski et al.
patent: 6485465 (2002-11-01), Moberg et al.
patent: 6656148 (2003-12-01), Das et al.
patent: 6659980 (2003-12-01), Moberg et al.
patent: 2007/0058412 (2007-03-01), Wang et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for discriminating between operating conditions in... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for discriminating between operating conditions in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for discriminating between operating conditions in... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4038995

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.