# US 10,946,203 B2 · Leadless cardiac stimulation device employing distributed logic > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,946,203 B2 - Document ID: US10946203B2 - Status: Granted - Kind: B2 - Application number: 15/601,662 - Filed: 2017-05-22 - Published: 2017-09-14 - Granted: 2021-03-16 - Earliest claimed: 2004-12-16 - Assignees: Cardiac Pacemakers, Inc. - Applicants: Cardiac Pacemakers, Inc. - Inventors: Jeffrey P. Bodner; Randy Bierwerth - Web page: https://patentgrep.com/patent/US10946203B2 ## CPC - A61N 1/375: Constructional arrangements, e.g. casings - A61N 1/056: {Transvascular endocardial electrode systems} - A61N 1/0587: {Epicardial electrode systems; Endocardial electrodes piercing the pericardium} - A61N 1/36514: {controlled by a physiological quantity other than heart potential, e.g. blood pressure (controlled by two or more physical parameters A61N1/36585)} - A61N 1/368: comprising more than one electrode co-operating with different heart regions {(A61N1/3622, A61N1/3627 take precedence)} - A61N 1/3684: {for stimulating the heart at multiple sites of the ventricle or the atrium} - A61N 1/36843: {Bi-ventricular stimulation} - A61N 1/37235: {Aspects of the external programmer} - A61N 1/37512: {Pacemakers} - A61N 1/37518: {Anchoring of the implants, e.g. fixation} - A61N 1/3756: {Casings with electrodes thereon, e.g. leadless stimulators} - A61N 1/3787: {from an external energy source} - A61N 1/3962: {in combination with another heart therapy} - A61N 1/39622: {Pacing therapy} - A61N 1/3987: {characterised by the timing or triggering of the shock} - A61N 1/37205: {Microstimulators, e.g. implantable through a cannula} - A61N 1/37288: {Communication to several implantable medical devices within one patient} - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) ## Abstract Systems and methods involve an intrathoracic cardiac stimulation device operable to provide autonomous cardiac sensing and energy delivery. The cardiac stimulation device includes a housing configured for intrathoracic placement relative to a patient's heart. A fixation arrangement of the housing is configured to affix the housing at an implant location within cardiac tissue or cardiac vasculature. An electrode arrangement supported by the housing is configured to sense cardiac activity and deliver stimulation energy to the cardiac tissue or cardiac vasculature. Energy delivery circuitry in the housing is coupled to the electrode arrangement. Detection circuitry is provided in the housing and coupled to the electrode arrangement. Communications circuitry may optionally be supported by the housing. A controller in the housing coordinates delivery of energy to the cardiac tissue or cardiac vasculature in accordance with an energy delivery protocol appropriate for the implant location. ## Claims ### Claim 1 A method for pacing a heart of a patient with a leadless cardiac pacemaker (LCP), the method comprising: sensing cardiac electrical activity with a leadless cardiac pacemaker (LCP) implanted within the heart of the patient; autonomously providing pacing therapy to the heart of the patient with the LCP based at least in part on the sensed cardiac electrical activity sensed by the LCP; sensing patient activity via an accelerometer of a remotely implanted medical device that is implanted at a location that is spaced from the heart of the patient; wirelessly communicating sensed patient activity data from the remotely implanted medical device directly to the LCP; and the LCP adjusting the pacing therapy delivered by the LCP based at least in part on the patient activity data received from the remotely implanted medical device. ### Claim 2 (depends on 1) The method of claim 1, wherein the implanted medical device that is implanted at a location that is spaced from the heart of the patient comprises an accelerometer, and the patient activity data comprises accelerometer data. ### Claim 3 (depends on 1) The method of claim 1, wherein the implanted medical device that is implanted at a location that is spaced from the heart of the patient comprises a blood oxygen sensor, and the patient activity data comprises blood oxygen data. ### Claim 4 (depends on 1) The method of claim 1, wherein the implanted medical device that is implanted at a location that is spaced from the heart of the patient comprises an acoustic sensor, and the patient activity data comprises acoustic data. ### Claim 5 (depends on 1) The method of claim 1, wherein the implanted medical device that is implanted at a location that is spaced from the heart of the patient comprises a pressure sensor, and the patient activity data comprises pressure data. ### Claim 6 (depends on 1) The method of claim 1, wherein the patient activity data comprises transthoracic impedance data. ### Claim 7 (depends on 1) The method of claim 1, wherein the implanted medical device that is implanted at a location that is spaced from the heart of the patient is implanted subcutaneously. ### Claim 8 An implantable medical device system for providing pacing therapy to a heart of a patient, the implantable medical device system comprising: a leadless cardiac pacemaker (LCP) implanted within or proximate the heart of the patient, wherein the LCP is configured to: sense cardiac electrical activity via two or more electrodes of the LCP; autonomously provide pacing therapy to the heart of the patient based at least in part on the sensed cardiac electrical activity sensed by the two or more electrodes of the LCP; an implantable medical device implanted in a location that is spaced from the heart of the patient, wherein the implantable medical device is configured to: sense patient activity via an accelerometer of the implantable medical device, and wirelessly communicate patient activity data to the LCP; and wherein the LCP is configured to adjust the pacing therapy delivered autonomously by the LCP to the heart of the patient based at least in part on the patient activity data received from the implantable medical device. ### Claim 9 (depends on 8) The implantable medical device system of claim 8, wherein the sensor of the implantable medical device comprises an accelerometer, and the patient activity data comprises accelerometer data. ### Claim 10 (depends on 8) The implantable medical device system of claim 8, wherein the sensor of the implantable medical device comprises a blood oxygen sensor, and the patient activity data comprises blood oxygen data. ### Claim 11 (depends on 8) The implantable medical device system of claim 8, wherein the sensor of the implantable medical device comprises an acoustic sensor, and the patient activity data comprises acoustic data. ### Claim 12 (depends on 8) The implantable medical device system of claim 8, wherein the sensor of the implantable medical device comprises a pressure sensor, and the patient activity data comprises pressure data. ### Claim 13 (depends on 8) The implantable medical device system of claim 8, wherein the patient activity data comprises transthoracic impedance data. ### Claim 14 (depends on 8) The implantable medical device system of claim 8, wherein the implantable medical device is implanted subcutaneously.