Inversion delivery device and method for a prosthesis
First Claim
Patent Images
1. A method for inverting an invertible device comprising:
- advancing a first predetermined length of an invertible device distally from a delivery catheter, thereby establishing a target position;
limiting movement of said first predetermined length of said invertible device, thereby keeping said first predetermined length at said target position; and
,distally advancing a second predetermined length of said invertible device from said catheter so as to invert said second predetermined length into said first predetermined length.
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Abstract
A delivery device usable to deliver an inverting implant is provided that includes a positioning mechanism that automatically initiates the inversion process once a predetermined length of the implant has exited a delivery catheter. The positioning mechanism allows the implant to be safely and accurately deployed with reduced operator experience and in a greater variety of target locations.
49 Citations
16 Claims
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1. A method for inverting an invertible device comprising:
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advancing a first predetermined length of an invertible device distally from a delivery catheter, thereby establishing a target position; limiting movement of said first predetermined length of said invertible device, thereby keeping said first predetermined length at said target position; and
,distally advancing a second predetermined length of said invertible device from said catheter so as to invert said second predetermined length into said first predetermined length. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of delivering a support structure to a target site comprising:
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positioning a distal end of a delivery catheter at said target site; retracting proximally said distal end of said delivery catheter to expose a predetermined length of a support structure, thereby allowing said predetermined length to expand against said target site; advancing a proximal end of said support structure distally while preventing distal advancement of a distal end of said support structure, thereby causing a proximal portion of said support structure to invert into said predetermined length; releasing said support structure.
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8. A method of delivering a support structure to a target site comprising:
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positioning a distal end of a delivery catheter at said target site; advancing a support structure relative to said delivery catheter to expose a predetermined length of said support structure, thereby allowing said predetermined length to expand against said target site; advancing a proximal end of said support structure distally while preventing advancement of said predetermined length of said support structure, thereby causing a proximal portion of said support structure to invert into said predetermined length; releasing said support structure.
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9. A method for inverting an invertible valve assembly comprising:
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advancing a first predetermined length of an invertible valve assembly distally from a delivery catheter; limiting distal movement of said first predetermined length of said invertible valve assembly; and
,distally advancing a second predetermined length of said invertible valve assembly from said catheter so as to invert said second predetermined length into said first predetermined length; observing a valve of said valve assembly control blood flow prior to releasing said invertible valve assembly. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method of delivering a valve assembly to a target site comprising:
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positioning a distal end of a delivery catheter at said target site; retracting proximally said distal end of said delivery catheter to expose a predetermined length of a valve assembly; advancing a proximal end of said valve assembly distally while preventing distal advancement of a distal end of said valve assembly, thereby causing a proximal portion of said valve assembly to invert into said predetermined length; observing said valve assembly operate in a blood stream to control blood flow; releasing said valve assembly.
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16. A method of delivering a valve assembly to a target site comprising:
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positioning a distal end of a delivery catheter at said target site; advancing a valve assembly relative to said delivery catheter to expose a predetermined length of said valve assembly; advancing a proximal end of said valve assembly distally while preventing advancement of said predetermined length of said support structure, thereby causing a proximal portion of said support structure to invert into said predetermined length; observing said valve assembly operate in a blood stream to control blood flow; releasing said support structure.
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Specification