Ultrasound catheter and method for imaging and hemodynamic monitoring
DCFirst Claim
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1. A catheter apparatus, comprising:
- an elongated body having proximal and distal ends;
a linear phased-array ultrasonic transducer mounted proximate the distal end of the catheter body to transmit ultrasound and receive resultant echoes so as to provide a field of view within which flow rates can be measured and features imaged; and
an electrical conductor disposed in the catheter body for electrically connecting the transducer to control circuitry external of the catheter.
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Abstract
A catheter apparatus for monitoring cardiovascular function is provided. The catheter apparatus contains an elongated body having proximal and distal ends; a phased-array ultrasonic transducer; and an electrical conductor. The phased-array ultrasonic transducer is mounted proximate the distal end of the catheter body to transmit ultrasound and receive resultant echoes so as to provide a field of view within which flow rates can be measured and features imaged. The electrical conductor is disposed in the catheter body for electrically connecting the transducer to control circuitry external of the catheter.
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Citations
17 Claims
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1. A catheter apparatus, comprising:
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an elongated body having proximal and distal ends; a linear phased-array ultrasonic transducer mounted proximate the distal end of the catheter body to transmit ultrasound and receive resultant echoes so as to provide a field of view within which flow rates can be measured and features imaged; and an electrical conductor disposed in the catheter body for electrically connecting the transducer to control circuitry external of the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A catheter apparatus, comprising:
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an elongated, flexible body having proximal and distal ends and first and second sides, wherein the first side extends further in the direction of the distal end of the catheter than the second side; a linear phased-array ultrasonic transducer, the transducer being mounted on proximate the distal end of the catheter body and proximate the first side of the catheter body to transmit ultrasound and receive resultant echoes so as to provide a field of view within which flow rates can be measured and features imaged; and an electrical conductor disposed in the catheter body for electrically connecting the transducer to control circuitry external of the catheter.
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13. A medical system, comprising:
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a catheter comprising; an elongated body having proximal and distal ends; a linear phased-array ultrasonic transducer mounted proximate the distal end of the catheter body to transmit ultrasound and receive resultant echoes so as to provide a field of view within which flow rates can be measured and features imaged; guide wire port disposed in the catheter body and extending from proximate the proximal end of the catheter body to proximate the distal end of the catheter body for receiving a guide wire; an electrical conductor disposed in the catheter body for electrically connecting the transducer to control circuitry external of the catheter; control circuitry means for controlling operation of the ultrasonic transducer; and display means for displaying the flow rates and the features imaged by the ultrasonic transducer. - View Dependent Claims (14)
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15. A method of monitoring cardiovascular function using a catheter, the method comprising:
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disposing a catheter in one of a blood vessel and a heart, the catheter comprising; an elongated body having proximal and distal ends; a linear phased-array ultrasonic transducer mounted proximate the distal end of the catheter body to transmit ultrasound and receive resultant echoes so as to provide a field of view within which flow rates can be measured and features imaged; guide wire port disposed in the catheter body and extending from proximate the proximal end of the catheter body to proximate the distal end of the catheter body for receiving a guide wire; an electrical conductor disposed in the catheter body for electrically connecting the transducer to control circuitry external of the catheter; transmitting ultrasound from the transducer; receiving resultant echoes of the ultrasound using the transducer; analyzing the echoes to image features. - View Dependent Claims (16, 17)
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Specification