Minimally invasive valve replacement system
First Claim
Patent Images
1. A valve sizing apparatus, comprising;
- a catheter having a distal end, a proximal end, and a central lumen adapted to fit through a body cavity, a guidewire, an intravascular ultrasound catheter, and a balloon catheter comprising a balloon having a distal end, a proximal end, and an outer wall circumferentially surrounding a portion of the catheter at its distal portion;
a transducer positioned on the intravascular ultrasound catheter with the ability to emit and receive a signal;
a sizing window positioned over the transducer; and
an auxiliary processor for processing the ultrasonic signals operatively connected to the transducer.
0 Assignments
0 Petitions
Accused Products
Abstract
Methods and systems for minimally invasive replacement of a valve. The system includes a collapsible valve and anchoring structure, devices and methods for expanding the valve anchoring structure, adhesive means to seal the valve to the surrounding tissue, a catheter-based valve sizing and delivery system, native valve removal means, and a temporary valve and filter assembly to facilitate removal of debris material. The valve assembly comprises a valve and anchoring structure for the valve, dimensioned to fit substantially within the valve sinus.
-
Citations
20 Claims
-
1. A valve sizing apparatus, comprising;
-
a catheter having a distal end, a proximal end, and a central lumen adapted to fit through a body cavity, a guidewire, an intravascular ultrasound catheter, and a balloon catheter comprising a balloon having a distal end, a proximal end, and an outer wall circumferentially surrounding a portion of the catheter at its distal portion;
a transducer positioned on the intravascular ultrasound catheter with the ability to emit and receive a signal;
a sizing window positioned over the transducer; and
an auxiliary processor for processing the ultrasonic signals operatively connected to the transducer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for determining a diameter of a body cavity, comprising the steps of:
-
emitting a signal from a transducer through a sizing window, said transducer positioned on an intravascular ultrasound catheter guided through a body cavity by a guidewire, the intravascular catheter and guidewire share the lumen of a catheter with a balloon catheter, said balloon catheter comprising a balloon, said balloon having an outer wall circumferentially surrounding a portion of the catheter;
reflecting the signal off the outer wall of the balloon;
receiving the signal through the transducer through the sizing window positioned directly over the transducer;
transmitting data received by the transducer to an auxiliary processor for calculating the diameter of the body cavity. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification