Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
2005-12-13
2005-12-13
Schaetzle, Kennedy (Department: 3762)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
C607S009000
Reexamination Certificate
active
06975905
ABSTRACT:
A circuit for delivering a back-up stimulation voltage in a cycle to cycle capture test for an active implantable medical device such as a pacemaker, defibrillator and/or cardiovertor or a multisite device having an enhanced circuit for delivering back-up stimulation pulses. This device comprises a first stimulation stage having: a output capacitor (12); a charging circuit (14) to charge the output capacitor to a first predetermined voltage (V1) for the stimulation that is close to the threshold of effectiveness for the stimulation of the patient; a first switch (18) that is able to connect the output capacitor to a stimulation terminal (16) of the device; a capture test circuit that is able to determine, after delivery of a stimulation, whether the stimulation was effective or if, on the contrary, there was loss of capture; a circuit for readjusting the stimulation voltage according to the result of the capture test; and a circuit able to deliver a backup-stimulation after the capture test if the result of the capture test reveals a loss of capture. The circuit for delivering a backup-stimulation includes an additional capacitor that is maintained charged, and a second switch (34), able to connect the additional capacitor to the aforementioned stimulation terminal (16) of the device to deliver the back-up stimulation pulse.
REFERENCES:
patent: 4096866 (1978-06-01), Fischell
patent: 5111816 (1992-05-01), Pless et al.
patent: 5411533 (1995-05-01), Dubreuil et al.
patent: 5591211 (1997-01-01), Meltzer
patent: 5735880 (1998-04-01), Prutchi et al.
patent: 5846264 (1998-12-01), Andersson et al.
patent: 5948004 (1999-09-01), Weijand et al.
patent: 6002962 (1999-12-01), Huang et al.
patent: 6169921 (2001-01-01), Knight et al.
patent: 6238419 (2001-05-01), Lindgren
patent: 6456877 (2002-09-01), Fishler
patent: 6615089 (2003-09-01), Russie et al.
patent: 0 813 889 (1997-12-01), None
patent: WO 93/02741 (1993-02-01), None
Dal Molin Renzo
Pons Pascal
ELA Medical S.A.
Mullen Kristen
Orrick Herrington & Sutcliffe LLP
Schaetzle Kennedy
LandOfFree
Stimulation circuits for a cycle to cycle stimulation... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stimulation circuits for a cycle to cycle stimulation..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stimulation circuits for a cycle to cycle stimulation... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3481931