Implantable digital cardiac pacer having externally selectible o

Details Implantable digital cardiac pacer having externally selectible o Implantable digital cardiac pacer having externally selectible o

1976-03-03

1977-09-20

Kamm, William E.

Surgery

Truss

Pad

307273, A61N 136

Patent

active

040490041

ABSTRACT:
An implantable cardiac pacer is instructable to vary the stimulation pulse interval, the stimulation pulse width, the stimulation pulse amplitude, the pacer sensitivity, the refractory period and the mode (demand or asynchronous).
A master parameter control circuit is provided to vary selected parameters of the heart pacer in accordance with an externally applied control signal.
An external control unit produces two sequential series of pulses, the first series being an access comprising at least one digital "0" state which must be detected by an access code detecting circuit within the master parameter control before the following parameter code will be accepted to vary the pacer parameters. The parameter code, generated subsequently to the access code, determines the selected set of pacer parameters, and can be selected from external controls upon the external control unit.
The master parameter control circuit includes means for recognizing the access code to enable the master parameter control circuit to only thereafter accept the selected parameter code. The entire parameter code must then be entirely received prior to changing the pacer parameters.

REFERENCES:
patent: 3557796 (1971-01-01), Keller, Jr. et al.
patent: 3727616 (1973-04-01), Lenzkes
patent: 3805796 (1974-04-01), Terry, Jr. et al.
patent: 3833005 (1974-09-01), Wingrove

Affiliated with

Also associated with

Rating

Implantable digital cardiac pacer having externally selectible o does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Implantable digital cardiac pacer having externally selectible o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Implantable digital cardiac pacer having externally selectible o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-666045