Cardiac pacemaker synchronized programming
First Claim
1. A method of controlling the output pulse intervals of the pulses emitted by an implantable programmable cardiac pulse generator means which normally operates under the control of a main program transmitted from a control location to said pulse generator means comprising the steps of:
- (a) transmitting secondary pulse interval program information from a control location to said pulse generator means which specifies the interval between at least one cardiac depolarization event and an ensuing output pulse;
(b) sensing the occurrence of cardiac depolarization events at said control location;
(c) interrupting the control of said pulse interval established by said main program of said pulse generator means upon the satisfaction of predetermined criteria by said sensed cardiac depolarization event;
(d) utilizing repeated transmissions of said secondary pulse interval program information to provide the specified interval between said cardiac events and said ensuing pulses before said ensuing pulses are specified to occur; and
,(e) re-establishing control of the operation of said pulse generator by said main program upon utilization of said secondary pulse interval program information by retransmitting said main program to said pulse generator.
0 Assignments
0 Petitions
Accused Products
Abstract
The programming of pulse intervals and the inhibition of the output of an implanted cardiac pacemaker are disclosed. The occurrence of either an output pulse from the implanted unit or of cardiac activity allows for synchronization of the programming unit with the implanted device so the external programmer can control the pulse timing sequence of the implanted unit. The implanted unit can be programmed after each pulse, or as required, to obtain a pulse sequence which may be used to provoke, or terminate, tachyarrhythmias, thus enabling non-invasive electrophysiologic studies, or therapeutic stimulation.
19 Citations
4 Claims
-
1. A method of controlling the output pulse intervals of the pulses emitted by an implantable programmable cardiac pulse generator means which normally operates under the control of a main program transmitted from a control location to said pulse generator means comprising the steps of:
-
(a) transmitting secondary pulse interval program information from a control location to said pulse generator means which specifies the interval between at least one cardiac depolarization event and an ensuing output pulse; (b) sensing the occurrence of cardiac depolarization events at said control location; (c) interrupting the control of said pulse interval established by said main program of said pulse generator means upon the satisfaction of predetermined criteria by said sensed cardiac depolarization event; (d) utilizing repeated transmissions of said secondary pulse interval program information to provide the specified interval between said cardiac events and said ensuing pulses before said ensuing pulses are specified to occur; and
,(e) re-establishing control of the operation of said pulse generator by said main program upon utilization of said secondary pulse interval program information by retransmitting said main program to said pulse generator. - View Dependent Claims (2, 3, 4)
-
Specification