Pacemaker with power-consuming component inhibited during storage
First Claim
1. An implantable pacemaker comprising:
- a battery;
at least one power-consuming component connected to said battery, said power-consuming component being disenabled prior to implantation of said pacemaker;
electrodes adapted for in vivo delivery of electrical energy from said battery to a patient, said electrodes having an having an impedance across said electrodes; and
means responsive to a predetermined change in said impedance occurring substantially simultaneously with implantation of said pacemaker for enabling said power-consuming component.
2 Assignments
0 Petitions
Accused Products
Abstract
A pacemaker contains at least one power-consuming component, such as a sensor with associated electronic circuitry for controlling the pacemaker function or a heart signal detector, and an electrode system for emitting heart stimulation pulses. The power-consuming component is disenabled prior to implantation of the pacemaker. Circuitry is provided for enabling the power-consuming component which is responsive to an event occurring substantially simultaneously with pacemaker implantation in the patient. Such circuitry may include a device for measuring the electrode impedance so as to enable the power-consuming component in response to the measured impedance value. The circuitry for enabling the power-consuming component can alternatively includes internal telemetry equipment in the pacemaker and external telemetry equipment for communications between the telemetry equipments. The external telemetry equipment can contain programming equipment and the internal telemetry equipment be arranged to enable the power-consuming component as soon as the programming equipment begins communicating at the time of implantation with the internal telemetry equipment, or by sending a special command from the programming equipment at the time of implantation. Alternatively the enabling circuitry can include a reed element, controllable by an external magnetic field, applied at the time of implantation, for enabling the power-consuming component.
-
Citations
10 Claims
-
1. An implantable pacemaker comprising:
-
a battery; at least one power-consuming component connected to said battery, said power-consuming component being disenabled prior to implantation of said pacemaker; electrodes adapted for in vivo delivery of electrical energy from said battery to a patient, said electrodes having an having an impedance across said electrodes; and means responsive to a predetermined change in said impedance occurring substantially simultaneously with implantation of said pacemaker for enabling said power-consuming component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. An implantable pacemaker for use with an external telemetry unit, said pacemaker comprising:
-
a battery; at least one power-consuming component connected to said battery, said power-consuming component being disenabled prior to implantation of said pacemaker; internal means contained in said pacemaker for telemetrically communicating with said external telemetry unit; and means responsive to an establishment of a telemetry link between said internal means and said external telemetry unit occurring substantially simultaneously with implantation of said pacemaker for enabling said power-consuming component.
-
-
10. An implantable pacemaker for use with an external programmer which generates a predetermined program command, said implantable pacemaker comprising:
-
a battery; at least one power-consuming component connected to said battery, said power-consuming component being disenabled prior to implantation of said pacemaker; implanted telemetry means contained in said pacemaker for communicating by telemetry with said external programmer; and means responsive to receipt of said predetermined program command from said external programmer by said implanted telemetry means occurring substantially simultaneously with implantation of said pacemaker for enabling said power-consuming component.
-
Specification