Bioimpedance measurement system and method

Surgery – Instruments – Cyrogenic application

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C606S021000, C606S022000, C606S023000, C600S547000

Reexamination Certificate

active

07842031

ABSTRACT:
Methods and systems for detecting fluid egress, assessing lesion quality, determining tissue composition or structure, determining ice coverage of catheter tip and providing tissue contact assessment, by providing a catheter having a shaft with a proximal end portion and a distal end portion, the proximal end portion and the distal end portion define at least one fluid pathway therebetween with the shaft having a plurality of electrodes, positioning the catheter at a tissue treatment site, applying an electrical current between at least two of the plurality of electrodes, measuring impedance voltage between the at least two of the plurality of electrodes and, processing the measured impedance voltage caused by the applied electrical current to determine if fluid egress is present, to assess lesion quality, to determine tissue composition, ice cover of catheter tip, and to provide contact assessment. The system may have a control unit, a microprocessor, an impedance measuring device or the like to perform processing of impedance data.

REFERENCES:
patent: 4587975 (1986-05-01), Salo et al.
patent: 4860744 (1989-08-01), Johnson et al.
patent: 4998933 (1991-03-01), Eggers et al.
patent: 5057105 (1991-10-01), Malone et al.
patent: 5069223 (1991-12-01), McRae
patent: 5122137 (1992-06-01), Lennox
patent: 5156151 (1992-10-01), Imran
patent: 5184621 (1993-02-01), Vogel et al.
patent: 5334193 (1994-08-01), Nardella
patent: 5341807 (1994-08-01), Nardella
patent: 5348554 (1994-09-01), Imran et al.
patent: 5462545 (1995-10-01), Wang et al.
patent: 5479938 (1996-01-01), Weier
patent: 5500011 (1996-03-01), Desai
patent: 5501681 (1996-03-01), Neuwirth et al.
patent: 5509411 (1996-04-01), Littmann et al.
patent: 5549109 (1996-08-01), Samson et al.
patent: 5555883 (1996-09-01), Avitall
patent: 5596995 (1997-01-01), Sherman et al.
patent: 5657755 (1997-08-01), Desai
patent: 5673704 (1997-10-01), Marchlinski et al.
patent: 5718701 (1998-02-01), Shai et al.
patent: 5741214 (1998-04-01), Ouchi et al.
patent: 5755715 (1998-05-01), Stern et al.
patent: 5769786 (1998-06-01), Wiegel
patent: 5771895 (1998-06-01), Slager
patent: 5775327 (1998-07-01), Randolph et al.
patent: 5836990 (1998-11-01), Li
patent: 5869971 (1999-02-01), Sherman
patent: 5891027 (1999-04-01), Tu et al.
patent: 5947910 (1999-09-01), Zimmet
patent: 5957922 (1999-09-01), Imran
patent: 6016437 (2000-01-01), Tu et al.
patent: 6030379 (2000-02-01), Panescu et al.
patent: 6049737 (2000-04-01), Simpson et al.
patent: 6064905 (2000-05-01), Webster, Jr. et al.
patent: 6164283 (2000-12-01), Lesh
patent: 6179788 (2001-01-01), Sullivan
patent: 6190378 (2001-02-01), Jarvinen
patent: 6217573 (2001-04-01), Webster
patent: 6231518 (2001-05-01), Grabek et al.
patent: 6235018 (2001-05-01), LePivert
patent: 6241754 (2001-06-01), Swanson et al.
patent: 6245064 (2001-06-01), Lesh et al.
patent: 6245599 (2001-06-01), Goto et al.
patent: 6254598 (2001-07-01), Edwards et al.
patent: 6292695 (2001-09-01), Webster, Jr. et al.
patent: 6325797 (2001-12-01), Stewart et al.
patent: 6360123 (2002-03-01), Kimchi et al.
patent: 6391024 (2002-05-01), Sun et al.
patent: 6423057 (2002-07-01), He et al.
patent: 6471693 (2002-10-01), Carroll et al.
patent: 6551274 (2003-04-01), Heiner
patent: 6551309 (2003-04-01), LePivert
patent: 6569158 (2003-05-01), Abboud et al.
patent: 6752804 (2004-06-01), Simpson et al.
patent: 6761716 (2004-07-01), Kadhiresan et al.
patent: 7070594 (2006-07-01), Sherman
patent: 7442190 (2008-10-01), Abbound et al.
patent: 2002/0062124 (2002-05-01), Keane
patent: 2002/0077627 (2002-06-01), Johnson et al.
patent: 2003/0018326 (2003-01-01), Abboud et al.
patent: 2005/0038422 (2005-02-01), Maurice
patent: 2005/0177146 (2005-08-01), Sherman
patent: 2005/0228367 (2005-10-01), Abboud et al.
patent: 2006/0135953 (2006-06-01), Kania et al.
patent: 2006/0200039 (2006-09-01), Brockway et al.
patent: 2007/0255162 (2007-11-01), Abboud et al.
patent: 0449401 (1991-10-01), None
patent: WO 00/51683 (2000-09-01), None
patent: WO 00/67830 (2000-11-01), None

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

Bioimpedance measurement system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bioimpedance measurement system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bioimpedance measurement system and method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4214076

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