Pressure/temperature/flow monitor device for vascular implantation
First Claim
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1. A medical monitoring apparatus for use in a heart located in a body, the heart having first and second chambers separated by a septum, the apparatus comprising:
- a stent having a first end, a second end, and a lumen extending therebetween, the stent adapted for placement in the septum such that the first end contacts heart tissue adjacent the septum in the first chamber and the second end contacts heart tissue adjacent the septum in the second chamber, the stent further having a body extending between the first and second ends, either or both of the first and second ends having a cross sectional dimension larger than a cross sectional dimension of the body when the stent is placed in the septum;
a sensor coupled to the stent for detecting a physiological parameter in the heart; and
a telemetric transmitter coupled to the sensor and configured to transmit one or more signals representative of a detected physiological parameter percutaneously to a receiver.
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Abstract
A medical monitoring apparatus designed to be implanted in the vascular system is capable of sensing and transmitting via a telemetry link to an external monitor both pressure and temperature information. An internally or externally powered microcircuit component is supported on a stent-like structure and adapted to be placed in the vascular system. Placement in the ventricular septum permits measurement of pressure and temperature in the left ventricle without introducing thrombus generating materials in the left ventricle.
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Citations
27 Claims
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1. A medical monitoring apparatus for use in a heart located in a body, the heart having first and second chambers separated by a septum, the apparatus comprising:
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a stent having a first end, a second end, and a lumen extending therebetween, the stent adapted for placement in the septum such that the first end contacts heart tissue adjacent the septum in the first chamber and the second end contacts heart tissue adjacent the septum in the second chamber, the stent further having a body extending between the first and second ends, either or both of the first and second ends having a cross sectional dimension larger than a cross sectional dimension of the body when the stent is placed in the septum;
a sensor coupled to the stent for detecting a physiological parameter in the heart; and
a telemetric transmitter coupled to the sensor and configured to transmit one or more signals representative of a detected physiological parameter percutaneously to a receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for measuring one or more physiological parameters in a heart located in a body, the heart having first and second chambers separated by a septum, the method comprising:
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implanting a stent with an associated sensor within an opening formed through the septum between the first and second chambers;
detecting a physiological parameter in the heart with the implanted sensor; and
telemetrically transmitting one or more signals representative of the detected physiological parameter percutaneously to a receiver. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 22)
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21. The method of claim wherein step of implanting the stent comprises expanding the stent within the opening.
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23. A medical monitoring apparatus for use in a body, the apparatus comprising:
- a stent having a first end, a second end, and a lumen extending therebetween;
a sensor coupled to the stent for detecting a physiological parameter in the body;
an occluding member disposed within the lumen; and
a telemetric transmitter coupled to the sensor and configured to transmit one or more signals representative of a detected physiological parameter percutaneously to a receiver. - View Dependent Claims (24, 25)
- a stent having a first end, a second end, and a lumen extending therebetween;
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26. A method for measuring one or more physiological parameters in a body, comprising:
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implanting a stent with an associated sensor within the body;
occluding the flow of blood through the stent;
detecting a physiological parameter in the body with the implanted sensor; and
telemetrically transmitting one or more signals representative of the detected physiological parameter percutaneously to a receiver. - View Dependent Claims (27)
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Specification