THORACIC DEPLOYMENT DEVICE AND STENT GRAFT
First Claim
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1. A stent graft introducer for comprising:
- a guide wire catheter extending from a proximal to a distal end,a nose cone dilator on the proximal end of the guide wire catheter, the nose cone dilator having a proximal end and a distal end and a longitudinal groove therein,a deployment catheter on the guide wire catheter, the guide wire catheter passing through a lumen in the deployment catheter and the deployment catheter being able to move longitudinally and rotationally with respect to the guide wire catheter,a handle at the distal end of the deployment catheter;
a distal retention arrangement at the proximal end of the deployment catheter to retain the distal end of a stent graft thereon,a proximal retention arrangement at the distal end of the nose cone dilator to retain the proximal end of a stent graft thereon,a release arrangement associated with the handle comprising a distal release arrangement and a proximal release arrangement to separately release the distal retention arrangement and the proximal retention arrangement respectively,the distal retention arrangement at the proximal end of the deployment catheter comprising a proximally facing capsule for engaging a distally extending exposed stent on a stent graft and a sliding handle mechanism to allow movement of at least part of the deployment catheter independently of movement of the second retention arrangement, the sliding handle mechanism comprising a fixed handle associated with the handle and a sliding handle to which the deployment catheter and the capsule at the proximal end of the deployment catheter are fixed, whereby movement of the sliding handle with respect to the fixed handle withdraws the capsule distally from the exposed stent.
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Abstract
A stent graft introducer for intraluminal deployment of a stent graft (26), the introducer comprising a stent graft release mechanism (6) to allow partial release of the stent graft (26) when carried on the introducer, whereby control of the stent graft can be maintained while allowing access into the lumen of the stent graft from at least one end of the stent graft. The partial release can comprise partial release of one end of the stent graft.
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Citations
19 Claims
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1. A stent graft introducer for comprising:
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a guide wire catheter extending from a proximal to a distal end, a nose cone dilator on the proximal end of the guide wire catheter, the nose cone dilator having a proximal end and a distal end and a longitudinal groove therein, a deployment catheter on the guide wire catheter, the guide wire catheter passing through a lumen in the deployment catheter and the deployment catheter being able to move longitudinally and rotationally with respect to the guide wire catheter, a handle at the distal end of the deployment catheter; a distal retention arrangement at the proximal end of the deployment catheter to retain the distal end of a stent graft thereon, a proximal retention arrangement at the distal end of the nose cone dilator to retain the proximal end of a stent graft thereon, a release arrangement associated with the handle comprising a distal release arrangement and a proximal release arrangement to separately release the distal retention arrangement and the proximal retention arrangement respectively, the distal retention arrangement at the proximal end of the deployment catheter comprising a proximally facing capsule for engaging a distally extending exposed stent on a stent graft and a sliding handle mechanism to allow movement of at least part of the deployment catheter independently of movement of the second retention arrangement, the sliding handle mechanism comprising a fixed handle associated with the handle and a sliding handle to which the deployment catheter and the capsule at the proximal end of the deployment catheter are fixed, whereby movement of the sliding handle with respect to the fixed handle withdraws the capsule distally from the exposed stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A stent graft introducer in combination with a stent graft retained on the stent graft introducer;
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the stent graft comprising the stent graft comprising a tubular body of a biocompatible graft material and a plurality of stents therealong to support the tubular body and to define in use a lumen through the stent graft, the stent graft further comprising a distally extending exposed stent; the stent graft introducer comprising a guide wire catheter extending from a proximal to a distal end, a nose cone dilator on the proximal end of the guide wire catheter, the nose cone dilator having a proximal end and a distal end and a longitudinal groove therein, a deployment catheter on the guide wire catheter, the guide wire catheter passing through a lumen in the deployment catheter and the deployment catheter being able to move longitudinally and rotationally with respect to the guide wire catheter, a handle at the distal end of the deployment catheter; the stent graft being retained on the introducer between the proximal end of the deployment catheter and the distal end of the nose cone dilator; a distal retention arrangement at the proximal end of the deployment catheter to retain the distal end of a stent graft thereon, a proximal retention arrangement at the distal end of the nose cone dilator to retain the proximal end of the stent graft thereon, a release arrangement associated with the handle comprising a distal release arrangement and a proximal release arrangement to separately release the distal retention arrangement and the proximal retention arrangement respectively, the distal retention arrangement at the proximal end of the deployment catheter comprising a proximally facing capsule for engaging the distally extending exposed stent of the stent graft and a sliding handle mechanism to allow movement of at least part of the deployment catheter independently of movement of the second retention arrangement, the sliding handle mechanism comprising a fixed handle associated with the handle and a sliding handle to which the deployment catheter and the capsule at the proximal end of the deployment catheter are fixed, whereby movement of the sliding handle with respect to the fixed handle withdraws the capsule distally from the exposed stent. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification