Systems and methods for determining positioning of intracardiac devices
Inventors
ALMEDHYCHY, ALI HASSAN • Chakrabarti, Anjan K.
Assignees
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Publication Number
US-12329959-B2
Publication Date
2025-06-17
Expiration Date
Abstract
Systems and methods for determining the positioning of intracardiac devices, such as intracardiac blood pump assemblies, using electrical sensors configured to sense electrical potential as it propagates through the heart. In one example, the present technology provides an intracardiac device with one or more electrical sensors mounted thereon, and a controller configured to determine the absolute or relative location of the intracardiac device based on the timing, shape, and/or amplitude of the electrical signals received from the one or more sensors.
Core Innovation
The invention relates to sensing position of an intracardiac device inserted into a patient's heart using electrical sensors that sense electrical pulses within the heart. An intracardiac device includes two sensors mounted in spaced apart locations on the intracardiac device, and one or more processors receive signals from each sensor and determine a location of a first sensor relative to a location of a second sensor based at least in part on the received sensor signals.
The processor compares a shape of one or more signals received from a first sensor with a shape of one or more signals received from a second sensor. Smaller differences in signal shape indicate that the two sensors are closer together, and differences that are larger indicate that the two sensors are further apart. The system compares signal characteristics that are distinguishable from cardiac electrical potentials associated with heart conduction components and representative heart waves.
The invention also includes comparing additional characteristics of the electrical signals and evaluating changes across heartbeats to determine movement and/or absolute or relative location. The system architecture includes an intracardiac device, in embodiments an intracardiac blood pump assembly, one or more processors and memory, an interface for receiving signals from the sensors, and calibration or reference data including data regarding representative heart waves.
Claims Coverage
Independent claim clm-00001 covers one inventive feature: relative location between two spaced intracardiac sensors determined by comparing the shape of electrical pulse signals from the sensors.
Relative location from intracardiac sensor signal shape differences
A system for sensing position of an intracardiac device inserted into a patient's heart, with two sensors mounted on the intracardiac device in spaced apart locations and configured to sense electrical pulses, and one or more processors receiving signals from each sensor and comparing a shape of signals from a first sensor with a shape of signals from a second sensor to determine a location of the first sensor relative to the location of the second sensor, wherein smaller differences in signal shape indicate the two sensors are closer together and larger differences indicate they are further apart.
The claim coverage centers on relative positioning of spaced intracardiac sensors by comparing signal shape, and also refers to representative heart-wave data, relative timing, relative amplitudes, and differences across first and second heartbeats for movement detection.
Stated Advantages
Enables determining a location of one sensor relative to another sensor based on electrical pulse signal comparisons.
Smaller signal-shape differences indicate sensors are closer together, and larger signal-shape differences indicate they are further apart.
Supports movement detection by comparing signal differences across first and second heartbeats indicating the intracardiac device moved from a predetermined position.
Documented Applications
Position sensing for intracardiac device placement, including intracardiac blood pump assemblies, using electrical sensors and cardiac electrical potentials.
Left and right heart support embodiments for sensing intracardiac device position relative to heart structures including locations associated with conduction components and representative heart waves.
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