Patent ID: 11938330
Assignee: PACESETTER, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. A leadless pacemaker, comprising:
a cell having a negative terminal and a positive terminal;
a cell housing within which the cell is disposed;
a tip electrode;
an insulator that electrically isolates the tip electrode from the cell housing; and
pacing electronics configured to cause the cell housing to serve as a positive ring or can electrode when providing a stimulation pulse from the cell housing to the tip electrode through cardiac tissue;
a first capacitor configured to selectively power the pacing electronics when the pacing electronics are disconnected from the cell by at least one switch;
a second capacitor configured to be selectively discharged into the cell housing to cause the cell housing to serve as the positive ring or can electrode during the stimulation pulse with respect to the tip electrode during the stimulation pulse; and
an electronics housing within which the pacing electronics are disposed;
wherein the leadless pacemaker is devoid of an additional housing disposed around the cell housing and is devoid of an additional ring electrode disposed around the cell housing.