Method and system for utilizing an atrial contraction timing fiducial in a leadless cardiac pacemaker system
First Claim
Patent Images
1. A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient'"'"'s heart, the LCP disposable within a ventricle of the patient'"'"'s heart, the LCP comprising:
- a housing;
a first electrode secured relative to the housing;
a second electrode secured relative to the housing, the second electrode spaced from the first electrode;
a controller disposed within the housing and operably coupled to the first electrode and the second electrode such that the controller is capable of pacing the heart via the first electrode and the second electrode, the controller configured to receive electrical signals;
a pressure sensor disposed relative to the housing and operably coupled to the controller, the controller configured to receive a signal from the pressure sensor, the signal from the pressure sensor including a first indication of an atrial contraction;
an accelerometer disposed relative to the housing and operably coupled to the controller, the controller configured to receive a signal from the accelerometer, the signal from the accelerometer including a second indication of an atrial contraction;
the controller configured to;
establish a first confidence value for the signal from the pressure sensor and a second confidence value for the signal from the accelerometer;
weight the signal from the pressure sensor with a first weight and weight the signal from the accelerometer with a second weight, wherein the first weight and the second weight are based at least in part upon the first confidence value and the second confidence value;
determine an atrial contraction timing fiducial based at least in part upon the weighted signal received from the pressure sensor providing the first indication of the atrial contraction and the weighted signal received from the accelerometer providing the second indication of the atrial contraction; and
generate a ventricle pacing pulse using the atrial contraction timing fiducial.
1 Assignment
0 Petitions
Accused Products
Abstract
A leadless cardiac pacemaker (LCP) is configured to sense cardiac activity and to pace a patient'"'"'s heart and is disposable within a ventricle of the patient'"'"'s heart. The LCP may include a housing, a first electrode and a second electrode that are secured relative to the housing and are spaced apart. A controller is disposed within the housing and is operably coupled to the first electrode and the second electrode such that the controller is capable of receiving, via the first electrode and the second electrode, electrical cardiac signals of the heart. The LCP may include a pressure sensor and/or an accelerometer. The controller may determine an atrial contraction timing fiducial based at least in part upon two or more of a signal from the pressure sensor, a signal from the accelerometer representing, and an electrical cardiac signal.
1165 Citations
16 Claims
-
1. A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient'"'"'s heart, the LCP disposable within a ventricle of the patient'"'"'s heart, the LCP comprising:
-
a housing; a first electrode secured relative to the housing; a second electrode secured relative to the housing, the second electrode spaced from the first electrode; a controller disposed within the housing and operably coupled to the first electrode and the second electrode such that the controller is capable of pacing the heart via the first electrode and the second electrode, the controller configured to receive electrical signals; a pressure sensor disposed relative to the housing and operably coupled to the controller, the controller configured to receive a signal from the pressure sensor, the signal from the pressure sensor including a first indication of an atrial contraction; an accelerometer disposed relative to the housing and operably coupled to the controller, the controller configured to receive a signal from the accelerometer, the signal from the accelerometer including a second indication of an atrial contraction; the controller configured to; establish a first confidence value for the signal from the pressure sensor and a second confidence value for the signal from the accelerometer; weight the signal from the pressure sensor with a first weight and weight the signal from the accelerometer with a second weight, wherein the first weight and the second weight are based at least in part upon the first confidence value and the second confidence value; determine an atrial contraction timing fiducial based at least in part upon the weighted signal received from the pressure sensor providing the first indication of the atrial contraction and the weighted signal received from the accelerometer providing the second indication of the atrial contraction; and generate a ventricle pacing pulse using the atrial contraction timing fiducial. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A leadless cardiac pacemaker (LCP) configured to sense cardiac activity and to pace a patient'"'"'s heart, the LCP disposable within a ventricle of the patient'"'"'s heart, the LCP comprising:
-
a housing; a first electrode secured relative to the housing; a second electrode secured relative to the housing, the second electrode spaced from the first electrode; a controller disposed within the housing and operably coupled to the first electrode and the second electrode such that the controller is capable of receiving, via the first electrode and the second electrode, electrical signals from a remotely implanted medical device; a pressure sensor disposed relative to the housing and operably coupled to the controller, the controller configured to receive a signal from the pressure sensor, the signal from the pressure sensor including a first indication of an atrial contraction; an accelerometer disposed relative to the housing and operably coupled to the controller, the controller configured to receive a signal from the accelerometer, the signal from the accelerometer including a second indication of an atrial contraction; the controller configured to; establish a first confidence value for the signal from the pressure sensor and a second confidence value for the signal from the accelerometer; weight the signal from the pressure sensor with a first weight and weight the signal from the accelerometer with a second weight, wherein the first weight and the second weight are based at least in part upon the first confidence value and the second confidence value; determine an atrial contraction timing fiducial based at least in part upon the weighted signal received from the pressure sensor providing the first indication of the atrial contraction, the weighted a signal received from the accelerometer providing the second indication of the atrial contraction, and the electrical signals received from the remotely located implanted medical device; and generate a ventricle pacing pulse using the atrial contraction timing fiducial.
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeCardiac Pacemakers Incorporated (Boston Scientific Corporation)
-
Original AssigneeCardiac Pacemakers Incorporated (Boston Scientific Corporation)
-
InventorsAn, Qi, Thakur, Pramodsingh Hirasingh, Yu, Yinghong, Kane, Michael J., Stahmann, Jeffrey E., Maile, Keith R.
-
Primary Examiner(s)Evanisko, George R
-
Application NumberUS15/625,655Publication NumberTime in Patent Office1,103 DaysField of SearchUS Class CurrentCPC Class CodesA61B 7/04 Electric stethoscopes micro...A61N 1/36564 controlled by blood pressureA61N 1/36578 controlled by mechanical mo...A61N 1/36585 controlled by two or more p...A61N 1/37205 Microstimulators, e.g. impl...A61N 1/37288 Communication to several im...A61N 1/3756 Casings with electrodes the...A61N 1/3925 Monitoring; ProtectingA61N 1/3962 in combination with another...A61N 1/3987 characterised by the timing...
