Devices and methods for controlling expandable prosthesis during develoyment
First Claim
1. A prosthesis delivery catheter comprising:
- an outer shaft forming a first lumen;
a plurality of self-expanding tubular prostheses carried within the first lumen, the prostheses being adapted to radially expand upon deployment from the first lumen; and
a movable coil member interactive with the prostheses to control expansion of the prostheses when the prostheses are deployed from the first lumen.
1 Assignment
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Accused Products
Abstract
Prosthesis delivery devices and methods are provided that enable precise control of prosthesis position during deployment. The prosthesis delivery devices may carry multiple prostheses and include deployment mechanisms for delivery of a selectable number of prostheses. Control mechanisms are provided in the prosthesis delivery devices that control either or both of the axial and rotational positions of the prostheses during deployment. This enables the deployment of multiple prostheses at a target site with precision and predictability, eliminating excessive spacing or overlap between prostheses. In particular embodiments, the prostheses of the invention are deployed in stenotic lesions in coronary or peripheral arteries, or in other vascular locations.
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Citations
49 Claims
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1. A prosthesis delivery catheter comprising:
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an outer shaft forming a first lumen;
a plurality of self-expanding tubular prostheses carried within the first lumen, the prostheses being adapted to radially expand upon deployment from the first lumen; and
a movable coil member interactive with the prostheses to control expansion of the prostheses when the prostheses are deployed from the first lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A prosthesis delivery catheter for delivering prostheses into a vessel lumen comprising:
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an outer shaft forming a first lumen;
an inner shaft slidably disposed within the first lumen;
an evertible tube having a first end coupled with a distal end of the outer shaft and a second end coupled with a distal end of the inner shaft; and
a plurality of self-expanding tubular prostheses carried within the evertible tube, the prostheses being adapted to radially expand upon deployment from the evertible tube, wherein moving the outer shaft proximally relative to the inner shaft everts a distal portion of the evertible tube so as to deploy one or more of the prostheses. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A method of delivering one or more prostheses to a treatment site in a vessel comprising:
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positioning a delivery catheter at the treatment site, the delivery catheter carrying a plurality of self-expanding prostheses;
selecting a desired number of the prostheses to deploy;
deploying the desired number of prostheses from the delivery catheter into the vessel, each prosthesis expanding into contact with the vessel upon deployment;
controlling axial displacement of each of the selected number of prostheses relative to the delivery catheter during deployment of the prostheses with an expandable coil member coupled with the prostheses; and
removing the expandable coil member from the deployed prostheses. - View Dependent Claims (25, 26, 27, 28, 29)
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30. A method of delivering one or more prostheses to a treatment site in a vessel comprising:
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positioning a delivery catheter at the treatment site, the delivery catheter carrying a plurality of self-expanding prostheses within an evertible tube;
selecting a desired number of the prostheses to deploy; and
everting a distal portion of the evertible tube to deploy the desired number of prostheses from the delivery catheter into the vessel, each prosthesis expanding into contact with the vessel upon deployment. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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38. A prosthesis delivery catheter comprising:
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an outer shaft having a distal end and a first lumen;
a plurality of self-expanding tubular prostheses carried within the first lumen, the prostheses being adapted to radially expand upon deployment from the first lumen; and
a control member extending distally from the distal end of the outer shaft and defining an interior communicating with the first lumen for receiving one or more of the prostheses, the control member having an undeflected shape when not engaged by any of the prostheses and being configured to deflect radially outwardly when engaged by a prosthesis during the expansion thereof, the control member being configured to resiliently return to the undeflected shape when the prosthesis is removed from the interior. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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Specification