VALVE DELIVERY DEVICE WITH A PIEZOCHROMATIC FEEDBACK INDICATOR AND METHODS OF USE
First Claim
1. A delivery device for implanting a stented prosthetic heart valve, the delivery device comprising:
- an inner shaft assembly configured for temporary connection with the stented prosthetic heart valve in a loaded state;
a delivery sheath assembly having an outer sheath that is co-axially received over the inner shaft assembly and including a capsule configured to contain the stented prosthetic heart valve in the loaded state;
a handle assembly interconnected to the delivery sheath assembly; and
a piezochromatic feedback indicator incorporated into the delivery device.
1 Assignment
0 Petitions
Accused Products
Abstract
Heart valve delivery systems and methods for providing a clinician with feedback during a stented prosthetic heart valve delivery procedure. Feedback is provided using piezochromatic indicators incorporated into elements of the delivery device, such as the handle assembly, shaft assembly and capsule to indicate when detrimental forces, or forces nearing those that are detrimental, are being applied to the delivery device during the prosthetic heart valve loading, delivery or deployment procedure. Other embodiments incorporate a feedback indicator to indicate that a delivery device has previously been used and is not in a new condition.
7 Citations
20 Claims
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1. A delivery device for implanting a stented prosthetic heart valve, the delivery device comprising:
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an inner shaft assembly configured for temporary connection with the stented prosthetic heart valve in a loaded state; a delivery sheath assembly having an outer sheath that is co-axially received over the inner shaft assembly and including a capsule configured to contain the stented prosthetic heart valve in the loaded state; a handle assembly interconnected to the delivery sheath assembly; and a piezochromatic feedback indicator incorporated into the delivery device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A delivery device for implanting a stented prosthetic heart valve, the delivery device comprising:
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an inner shaft assembly configured for temporary connection with the stented prosthetic heart valve in a loaded state; a delivery sheath assembly configured to contain the stented prosthetic heart valve in the loaded state; a handle assembly interconnected to the delivery sheath assembly, the handle including an actuation mechanism for controlling movement of the outer sheath assembly; and a piezochromatic feedback indicator proximate the actuating mechanism;
wherein at least part of a force provided by the actuation mechanism is translated to the piezochromatic feedback indicator.
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14. A method of visually indicating a level of force being applied to a transcatheter valve delivery device, the method including the step of:
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providing a transcatheter valve delivery device including a feedback indicator including piezochromatic pigments;
wherein the feedback indicator is arranged and configured to change colors when the piezochromatic pigments are subjected to a predetermined level of force; andvisually monitoring the feedback indicator for a change in color. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification