Methods of rapidly deployable surgical heart valves
First Claim
1. A method of delivery and implant of a prosthetic heart valve system to a native heart valve annulus, comprising:
- providing a heart valve including a prosthetic valve having an expandable frame, the frame having a contracted state for delivery to an implant position and an expanded state configured for outward connection to the annulus and defining a flow channel therethrough, the heart valve having a plurality of flexible leaflets peripherally supported by the frame and extending inward into the flow channel to provide occluding surfaces, the heart valve being mounted on a holder having a proximal hub and a lumen therethrough;
connecting a distal end of a handle shaft to the proximal hub, the handle shaft having a lumen therethrough and a balloon catheter with a balloon therein, the distal end of the handle shaft and the proximal hub have complementary mating structure;
advancing the handle shaft with the heart valve on the distal end thereof and the frame in its contracted state until the heart valve is located at an implant position adjacent the annulus;
advancing the balloon catheter through the lumens of the handle shaft and the holder to a location within the frame; and
inflating the balloon to expand the frame by inflating the balloon to a predetermined pressure calibrated to a particular valve size of the heart valve.
1 Assignment
0 Petitions
Accused Products
Abstract
A quick-connect heart valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The heart valve includes a substantially non-expandable, non-compressible prosthetic valve and a plastically-expandable frame, thereby enabling attachment to the annulus without sutures. A small number of guide sutures may be provided for aortic valve orientation. The prosthetic valve may be a commercially available valve with a sewing ring with the frame attached thereto. The frame may expand from a conical deployment shape to a conical expanded shape, and may include web-like struts connected between axially-extending posts. A system and method for deployment includes an integrated handle shaft and balloon catheter. A valve holder is stored with the heart valve and the handle shaft easily attaches thereto to improve valve preparation steps.
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Citations
20 Claims
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1. A method of delivery and implant of a prosthetic heart valve system to a native heart valve annulus, comprising:
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providing a heart valve including a prosthetic valve having an expandable frame, the frame having a contracted state for delivery to an implant position and an expanded state configured for outward connection to the annulus and defining a flow channel therethrough, the heart valve having a plurality of flexible leaflets peripherally supported by the frame and extending inward into the flow channel to provide occluding surfaces, the heart valve being mounted on a holder having a proximal hub and a lumen therethrough; connecting a distal end of a handle shaft to the proximal hub, the handle shaft having a lumen therethrough and a balloon catheter with a balloon therein, the distal end of the handle shaft and the proximal hub have complementary mating structure; advancing the handle shaft with the heart valve on the distal end thereof and the frame in its contracted state until the heart valve is located at an implant position adjacent the annulus; advancing the balloon catheter through the lumens of the handle shaft and the holder to a location within the frame; and inflating the balloon to expand the frame by inflating the balloon to a predetermined pressure calibrated to a particular valve size of the heart valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of delivery and implant of a prosthetic heart valve system to a native heart valve annulus, comprising:
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providing a heart valve including a prosthetic valve having an expandable frame, the frame having a contracted state for delivery to an implant position and an expanded state configured for outward connection to the annulus and defining a flow channel therethrough, the heart valve having a plurality of flexible leaflets peripherally supported by the frame and extending inward into the flow channel to provide occluding surfaces, the heart valve being mounted on a holder having a proximal hub and a lumen therethrough; connecting a distal end of a handle shaft to the proximal hub, the handle shaft having a lumen therethrough and a balloon catheter with a balloon therein, the distal end of the handle shaft and the proximal hub have complementary mating structure; advancing the handle shaft with the heart valve on the distal end thereof and the frame in its contracted state until the heart valve is located at an implant position adjacent the annulus; advancing the balloon catheter through the lumens of the handle shaft and the holder to a location within the frame; inflating the balloon to expand the frame wherein the complementary mating structure on the distal end of the handle shaft and the proximal hub is unique to a valve size of the heart valve to ensure an inflated size of the balloon is calibrated to convert the frame to its expanded state, and wherein the handle shaft is a second handle shaft with a second balloon catheter having a second balloon, and prior to the step of connecting a distal end of the second handle shaft, the method includes; connecting a distal end of a first handle shaft to the proximal hub, the first handle shaft having a lumen therethrough and a first balloon catheter with a first balloon therein, wherein the distal end of the first handle shaft and the proximal hub have mating structure unique to a valve size of the heart valve to ensure an inflated size of the first balloon is calibrated to convert the frame to its expanded state; advancing the first handle shaft with the heart valve on the distal end thereof and the frame in its contracted state until the heart valve is located at an implant position adjacent the annulus; advancing the first balloon catheter through the lumens of the first handle shaft and the holder to within the heart valve; attempting to inflate the first balloon to expand the frame; deflating the first balloon and retracting the first balloon catheter from within the heart valve; and performing the step of connecting a distal end of the second handle shaft.
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10. A method of delivery and implant of a prosthetic heart valve system to a native heart valve annulus, comprising:
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providing a heart valve including a prosthetic valve having an expandable frame, the frame having a contracted state for delivery to an implant position and an expanded state configured for outward connection to the annulus and defining a flow channel therethrough, the heart valve having a plurality of flexible leaflets peripherally supported by the frame and extending inward into the flow channel to provide occluding surfaces, the heart valve being mounted on a holder having a proximal hub and a lumen therethrough; connecting a distal end of a handle shaft to the proximal hub, the handle shaft having a lumen therethrough and a balloon catheter with a balloon therein, the distal end of the handle shaft and the proximal hub have complementary mating structure; advancing the handle shaft with the heart valve on the distal end thereof and the frame in its contracted state until the heart valve is located at an implant position adjacent the annulus; advancing the balloon catheter through the lumens of the handle shaft and the holder to a location within the frame; inflating the balloon to expand the frame wherein the complementary mating structure on the distal end of the handle shaft and the proximal hub is unique to a valve size of the heart valve to ensure an inflated size of the balloon is calibrated to convert the frame to its expanded state, and wherein the balloon catheter is a second balloon catheter having a second balloon, and prior to the step of advancing the second balloon catheter, the method includes; advancing the first handle shaft with the heart valve on the distal end thereof and the frame in its contracted state until the heart valve is located at an implant position adjacent the annulus; advancing the first balloon catheter through the lumens of the first handle shaft and the holder to within the heart valve; attempting to inflate the first balloon to expand the frame; deflating the first balloon and retracting the first balloon catheter from within the heart valve; removing the first balloon catheter from the handle shaft; and inserting the second balloon catheter into the handle shaft and performing the step of advancing the second balloon catheter.
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11. A method of delivery and implant of a prosthetic heart valve system to a native heart valve annulus, comprising:
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providing a heart valve including a prosthetic valve having an expandable frame, the frame having a contracted state for delivery to an implant position and an expanded state configured for outward connection to the annulus and defining a flow channel therethrough, the heart valve having a plurality of flexible leaflets peripherally supported by the frame and extending inwardly into the flow channel and angled toward an outflow end of the heart valve to provide one-way fluid occluding surfaces that permit flow only in the outflow direction, the heart valve being mounted on a holder having a proximal hub and a lumen therethrough; connecting a balloon introducer sleeve to the holder from an inflow end of the heart valve so that it extends through and parts the flexible leaflets; fixing and coaxially aligning a distal end of a handle shaft with respect to the holder, the handle shaft having a lumen therethrough and a balloon catheter with a balloon therein; advancing the handle shaft with the heart valve on the distal end thereof and the frame in its contracted state until the heart valve is located at an implant position adjacent the annulus, including bending the handle shaft; advancing the balloon catheter through the lumen of the handle shaft and through the balloon introducer sleeve to a location within the frame; and inflating the balloon to expand the frame. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of delivery and implant of a prosthetic heart valve system to a native heart valve annulus, comprising:
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providing a heart valve including a prosthetic valve having an expandable frame, the frame having a contracted state for delivery to an implant position and an expanded state configured for outward connection to the annulus and defining a flow channel therethrough, the heart valve having a plurality of flexible leaflets peripherally supported by the frame and extending inward into the flow channel to provide occluding surfaces, the heart valve being mounted on a holder having a proximal hub and a lumen therethrough; connecting a distal end of a handle shaft to the proximal hub, the handle shaft having a lumen therethrough and a balloon catheter with a balloon therein, the distal end of the handle shaft and the proximal hub have complementary mating structure; advancing the handle shaft with the heart valve on the distal end thereof and the frame in its contracted state until the heart valve is located at an implant position adjacent the annulus, including bending the handle shaft; advancing the balloon catheter through the lumens of the handle shaft and the holder to a location within the frame; and inflating the balloon to expand the frame.
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20. A method of delivery and implant of a prosthetic heart valve system to a native heart valve annulus, comprising:
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providing a heart valve including a prosthetic valve having an expandable frame, the frame having a contracted state for delivery to an implant position and an expanded state configured for outward connection to the annulus and defining a flow channel therethrough, the heart valve having a plurality of flexible leaflets peripherally supported by the frame and extending inwardly into the flow channel and angled toward an outflow end of the heart valve to provide one-way fluid occluding surfaces that permit flow only in the outflow direction, the heart valve being mounted on a holder having a proximal hub and a lumen therethrough; connecting a balloon introducer sleeve to the holder from an inflow end of the heart valve so that it extends through and parts the flexible leaflets; fixing and coaxially aligning a distal end of a handle shaft with respect to the holder, the handle shaft having a lumen therethrough and a balloon catheter with a balloon therein; advancing the handle shaft with the heart valve on the distal end thereof and the frame in its contracted state until the heart valve is located at an implant position adjacent the annulus; advancing the balloon catheter through the lumen of the handle shaft and through the balloon introducer sleeve to a location within the frame; and inflating the balloon to expand the frame by inflating the balloon to a predetermined pressure calibrated to a particular valve size of the heart valve.
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Specification