Transapical delivery device and method of use
First Claim
Patent Images
1. A delivery device for a stented heart valve comprising:
- a handle;
an inner catheter shaft extending from the handle and having an enlarged bumper element at a distal terminal end of the inner catheter shaft, wherein a distal-most face of the bumper element defines a central passage and a complete, uninterrupted annular surface defined as an area between the central passage and a maximum outer diameter of the distal-most face of the bumper element, wherein the maximum outer diameter is a complete uninterrupted circle and further wherein the distal-most face is configured to abut the stented heart valve;
an outer catheter shaft extending from the handle and slidably coupled around the inner catheter shaft, the outer catheter shaft including a generally cylindrical housing at a distal side that is structured to receive the bumper element therein; and
a retraction mechanism for controlling longitudinal movement of the outer catheter shaft relative to the inner catheter shaft;
wherein the retraction mechanism can move the outer catheter shaft into an extended position and a retracted positon;
wherein, when the outer catheter shaft is in the retracted position, no part of the delivery device is more distal than the distal-most face.
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Abstract
A delivery device for a stented heart valve that includes a handle, an inner catheter shaft extending from the handle and having an enlarged bumper element at a distal end, an outer catheter shaft extending from the handle and slidably coupled around the inner catheter shaft, and a retraction mechanism for controlling longitudinal movement of the outer catheter shaft relative to the inner catheter shaft. The outer catheter shaft includes a generally cylindrical housing at a distal end that is structured to receive the bumper element therein.
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Citations
16 Claims
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1. A delivery device for a stented heart valve comprising:
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a handle; an inner catheter shaft extending from the handle and having an enlarged bumper element at a distal terminal end of the inner catheter shaft, wherein a distal-most face of the bumper element defines a central passage and a complete, uninterrupted annular surface defined as an area between the central passage and a maximum outer diameter of the distal-most face of the bumper element, wherein the maximum outer diameter is a complete uninterrupted circle and further wherein the distal-most face is configured to abut the stented heart valve; an outer catheter shaft extending from the handle and slidably coupled around the inner catheter shaft, the outer catheter shaft including a generally cylindrical housing at a distal side that is structured to receive the bumper element therein; and a retraction mechanism for controlling longitudinal movement of the outer catheter shaft relative to the inner catheter shaft;
wherein the retraction mechanism can move the outer catheter shaft into an extended position and a retracted positon;wherein, when the outer catheter shaft is in the retracted position, no part of the delivery device is more distal than the distal-most face. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for replacing a native heart valve, the system comprising:
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a stented heart valve including a stent maintaining a valve structure; and a delivery device including; a handle, an inner catheter shaft extending from the handle and having an enlarged bumper element at a distal terminal end of the inner catheter shaft, wherein the bumper element is configured to interface with the stented heart valve, wherein a distal-most face of the bumper element defines a central passage and a complete, uninterrupted annular surface defined as an area between the central passage and a maximum outer diameter of the distal-most face of the bumper element and further wherein the maximum outer diameter is a complete uninterrupted circle, an outer catheter shaft extending from the handle and slidably coupled around the inner catheter shaft, the outer catheter shaft including a generally cylindrical housing at a distal side that is structured to receive the bumper element therein, a retraction mechanism for controlling longitudinal movement of the outer catheter shaft relative to the inner catheter shaft in an extended position and a retracted position;
wherein, when the outer catheter shaft is in the retracted position, no part of the delivery device is more distal than the distal-most face;wherein the system provides a loaded state in which the stented heart valve is held in a crimped arrangement within the housing and an entirety of the stented heart valve is distal the bumper element. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification