PROSTHESIS DEPLOYMENT SYSTEM
First Claim
Patent Images
1. An introducer for an expandable, endovascular prosthesis, the introducer comprising:
- a distal prosthesis positioning mechanism including a distal retention section adapted to retain a distal portion of an expandable endovascular prosthesis and a first control member to selectively disengage the distal retention section from the retained distal portion of said prosthesis; and
a proximal prosthesis positioning mechanism including a cylindrical sleeve adapted to retain said prosthesis and a second control member to selectively disengage the cylindrical sleeve from said prosthesis;
wherein the second control member includes a first region coupled to the distal prosthesis positioning mechanism extending longitudinally therefrom, and a second region coupled to the first region adapted to selectively and proximally engage a self expanding stent of said prosthesis to retain the self expanding stent in the cylindrical sleeve.
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Abstract
An introducer for an expandable endovascular prosthesis having a self expanding stent has a distal prosthesis positioning mechanism and a proximal prosthesis retention mechanism. The proximal prosthesis retention mechanism includes a cylindrical sleeve adapted to retain the self expanding stent. A release mechanism extends proximally from the distal prosthesis positioning mechanism exerts a force in the proximal direction on the self expanding stent to retain the self expanding stent in the cylindrical sleeve.
33 Citations
27 Claims
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1. An introducer for an expandable, endovascular prosthesis, the introducer comprising:
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a distal prosthesis positioning mechanism including a distal retention section adapted to retain a distal portion of an expandable endovascular prosthesis and a first control member to selectively disengage the distal retention section from the retained distal portion of said prosthesis; and a proximal prosthesis positioning mechanism including a cylindrical sleeve adapted to retain said prosthesis and a second control member to selectively disengage the cylindrical sleeve from said prosthesis; wherein the second control member includes a first region coupled to the distal prosthesis positioning mechanism extending longitudinally therefrom, and a second region coupled to the first region adapted to selectively and proximally engage a self expanding stent of said prosthesis to retain the self expanding stent in the cylindrical sleeve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An introducer for positioning an expandable endovascular prosthesis, the introducer comprising:
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a control section to be maintained external to the patient; a cylindrical sleeve adapted to retain a self expanding stent of an expandable endovascular prosthesis; and a control member including a first region coupled to the control section extending longitudinally therefrom, and a second region coupled to the first region to maintain the self expanding stent of said prosthesis in the cylindrical sleeve until said prosthesis is positioned at a desired site in the lumen. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of placing a prosthesis into an internal lumen with an insertion assembly, the method including the steps of:
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a. inserting the insertion assembly including the prosthesis into the internal lumen; b. withdrawing a sheath from the insertion assembly to expose the prosthesis; c. exerting force on the prosthesis in a proximal direction with a release mechanism to retain the prosthesis in a prosthesis retention mechanism of the insertion assembly; d. moving the prosthesis retention mechanism proximally away from the release mechanism to disengage the prosthesis from the insertion assembly; d. replacing the sheath onto the insertion assembly; and e. retracting the insertion assembly.
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Specification