Devices, systems and methods for endocardial pressure measurement
First Claim
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1. A method of implanting a pressure measurement device in a heart of a patient, comprising the steps of:
- providing a pressure transducer assembly comprising a pressure transducer and a pressure transmission catheter, the catheter having a proximal portion and a distal portion, the proximal portion connected to the pressure transducer, the distal portion having an opening with a barrier; and
positioning the catheter across a heart wall, with the opening disposed in a chamber of the heart.
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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.
139 Citations
43 Claims
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1. A method of implanting a pressure measurement device in a heart of a patient, comprising the steps of:
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providing a pressure transducer assembly comprising a pressure transducer and a pressure transmission catheter, the catheter having a proximal portion and a distal portion, the proximal portion connected to the pressure transducer, the distal portion having an opening with a barrier; and
positioning the catheter across a heart wall, with the opening disposed in a chamber of the heart. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 28, 29, 30, 31, 32, 33, 36, 37, 38, 39, 40, 41, 42, 43)
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13. A method of implanting a device, comprising the steps of:
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providing an implantable device comprising a telemetry unit connected to a pressure transducer assembly connected to a catheter; and
implanting the device such that the catheter extends across a heart wall, with a distal end of the catheter disposed in a chamber of the heart and the pressure transducer assembly connected to the heart wall outside the chamber.
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18. An implantable pressure transducer assembly, comprising:
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a pressure transducer; and
a liquid filled catheter, the catheter having a proximal portion and a distal portion, the proximal portion connected to the pressure transducer, the distal portion having an opening with a barrier, wherein the proximal portion is relatively crush-resistant and the distal portion is relatively flexible.
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27. A blood pressure measuring system for measuring blood pressure in a heart of a patient, comprising:
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an implantable pressure transducer assembly;
an implantable telemetry unit connected to the pressure transducer assembly via an electrical lead;
a local data collection system in communication with the implantable telemetry unit via a wireless link; and
a remote data collection system in communication with the local data collection system via a telecommunication system.
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34. A method of diagnosing or monitoring congestive heart failure (CHF) or an underlying cause thereof, comprising the steps of:
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providing an implantable device comprising a telemetry unit connected to a pressure transducer connected to a catheter;
implanting the device such that the catheter extends across a heart wall, with a distal end of the catheter disposed in a chamber of the heart and the pressure transducer connected to the heart wall outside the chamber; and
monitoring blood pressure in the heart chamber using the implantable device.
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35. A method of diagnosing or monitoring congestive heart failure in a patient comprising:
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placing a fluid filled catheter across the myocardium of the patient;
coupling said fluid to an implanted pressure transducer mounted on the myocardium;
telemetering data from the pressure transducer to a remote location outside the body of the patient;
maintaining a data base of telemetered data over time to develop data trends for the patient;
displaying the data to a physician for diagnostic purposes.
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Specification