Devices, systems and methods for endocardial pressure measurement
5 Assignments
0 Petitions
Accused Products
Abstract
Endocardial pressure measurement devices, systems and methods for the effective treatment of congestive heart failure and its underlying causes, in addition to other clinical applications.
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Citations
63 Claims
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44. A system for correcting internal pressure measurement for changes in barometric pressure, the system comprising:
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a barometric pressure monitor located external to a patient'"'"'s body and configured to measure, at specified intervals, a barometric pressure to which the patient'"'"'s body is exposed;
a barometric pressure memory configured to store a first value of the measured barometric pressure with a first time stamp and to store a subsequent value of the measured barometric pressure with a subsequent time stamp if a difference between the subsequent value and the stored value in a latest previous time exceeds a preset threshold;
an implantable pressure sensor device configured to measure, at specified times, internal pressure in the patient'"'"'s body with respect to a specific reference pressure;
an internal memory configured to be disposed in the patient'"'"'s body and to record values of the measured internal pressure with information of the time of measurement; and
a correction module configured to correct the recorded values of the measured internal pressure using the stored values of the measured barometric pressure to obtain corrected internal pressure. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A method of correcting internal pressure measurement for changes in barometric pressure, the method comprising:
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measuring, at specified intervals, a barometric pressure external to a patient'"'"'s body and to which the patient'"'"'s body is exposed;
storing a first value of the measured barometric pressure with a first time stamp in a barometric pressure memory, and storing a subsequent value of the measured barometric pressure with a subsequent time stamp in the barometric pressure memory if a difference between the subsequent value and the stored value in a latest previous time exceeds a preset threshold;
measuring, at specified times, internal pressure with an implantable pressure sensor device in the patient'"'"'s body with respect to a specific reference pressure;
recording values of the measured internal pressure with information of the time of measurement; and
correcting the recorded values of the measured internal pressure using the stored values of the measured barometric pressure. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61, 62, 63)
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Specification