Quick release deployment handle for medical devices
First Claim
Patent Images
1. A stent graft delivery system for a stent graft comprising:
- a delivery device having an inner cannula having a proximal end and a distal end;
a stent graft carried on the proximal end of the inner cannula;
a deployment handle comprising,a tubular handle having a proximal end and a distal end and a handle lumen extending longitudinally therebetween, wherein at least a portion of the distal end of inner cannula extends longitudinally through the handle lumen;
a torsion spring proximal the distal end of the inner cannula, the torsion spring configured to impart axial rotation of the inner cannula relative to the handle;
an actuation mechanism positioned at the distal end of the handle, the actuation mechanism having a first position in which the actuation mechanism is engaged with the inner cannula to prevent axial rotation of the inner cannula and a second position in which the actuation mechanism is an disengaged from the inner cannula to permit axial rotation of the inner cannula relative to the handle;
wherein the axial rotation of the inner cannula permits release of at least a portion of the stent graft from the delivery device.
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Abstract
A deployment handle for an expandable medical device, a handle having a proximal end, a distal end, and a lumen/passageway extending between the proximal and distal ends; an inner cannula; and a tension mechanism located inside the handle and secured to the inner cannula so that the inner cannula rotates when the tension mechanism is actuated.
33 Citations
14 Claims
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1. A stent graft delivery system for a stent graft comprising:
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a delivery device having an inner cannula having a proximal end and a distal end; a stent graft carried on the proximal end of the inner cannula; a deployment handle comprising, a tubular handle having a proximal end and a distal end and a handle lumen extending longitudinally therebetween, wherein at least a portion of the distal end of inner cannula extends longitudinally through the handle lumen; a torsion spring proximal the distal end of the inner cannula, the torsion spring configured to impart axial rotation of the inner cannula relative to the handle; an actuation mechanism positioned at the distal end of the handle, the actuation mechanism having a first position in which the actuation mechanism is engaged with the inner cannula to prevent axial rotation of the inner cannula and a second position in which the actuation mechanism is an disengaged from the inner cannula to permit axial rotation of the inner cannula relative to the handle; wherein the axial rotation of the inner cannula permits release of at least a portion of the stent graft from the delivery device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification