Inversion delivery device and method for a prosthesis
First Claim
Patent Images
1. A method of acting on an implant during delivery comprising:
- navigating an implant to a target delivery site using a delivery catheter, said implant being releasably connected to said delivery catheter by at least one tether;
activating a mechanism that alters a linear position of at least a portion of said implant relative to at least a component of said delivery catheter;
wherein continued activation of said mechanism automatically engages and disengages a component attached to said at least one tether such that said tether experiences tension when said component is engaged and a release of said tension when said component is disengaged, and such that said component slides within a handle assembly for only a portion of a range of said mechanism; and
,wherein engagement and disengagement of said component is dependent on a position of said mechanism.
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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.
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Citations
19 Claims
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1. A method of acting on an implant during delivery comprising:
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navigating an implant to a target delivery site using a delivery catheter, said implant being releasably connected to said delivery catheter by at least one tether; activating a mechanism that alters a linear position of at least a portion of said implant relative to at least a component of said delivery catheter; wherein continued activation of said mechanism automatically engages and disengages a component attached to said at least one tether such that said tether experiences tension when said component is engaged and a release of said tension when said component is disengaged, and such that said component slides within a handle assembly for only a portion of a range of said mechanism; and
,wherein engagement and disengagement of said component is dependent on a position of said mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A medical implant delivery system comprising:
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an implant; a delivery catheter; at least one tether within said delivery catheter and having a distal end and a proximal end, said distal end releasably attached to said implant; a carriage attached to said proximal end of said at least one tether; a handle assembly at a proximal end of said delivery catheter and slidably housing said carriage therein; an activation mechanism that changes a linear position of said implant relative to said delivery catheter; wherein operation of said activation mechanism automatically engages and disengages said carriage such that said carriage slides within said handle assembly for only a portion of a range of said activation mechanism. - View Dependent Claims (9, 10, 11, 12)
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13. A medical implant delivery system comprising:
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an implant; a delivery catheter; at least one tether within said delivery catheter and having a distal end and a proximal end, said distal end releasably attached to said implant; a pusher catheter slidingly disposed within said delivery catheter; an inversion mechanism that selectively associates and disassociates movement of said at least one tether with the relative movement between the delivery catheter and the pusher catheter, said inversion mechanism comprising; a carriage attached to said proximal end of said at least one tether; a handle assembly at a proximal end of said delivery catheter and slidably housing said carriage therein; an activation mechanism that changes a linear position of said implant relative to said delivery catheter; wherein operation of said activation mechanism automatically engages and disengages said carriage such that said carriage slides within said handle assembly for only a portion of a range of said activation mechanism. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification