摘要:
An endoluminal prosthesis comprises a prosthetic trunk comprising a trunk lumen extending therethrough, a wall, an anastomosis in the wall, and a first fenestration in the wall, wherein the prosthetic trunk has a circumference. The endoluminal prosthesis further comprises a prosthetic branch comprising a branch lumen extending therethrough. The branch lumen is in fluid communication with the trunk lumen through the anastomosis. The prosthetic branch is disposed longitudinally along and circumferentially about the prosthetic trunk.
摘要:
A system for facilitating deployment of an endoluminal prosthesis may include a main tubular graft body including a proximal end opening, a distal end opening, a lumen, and a sidewall. A branch may extend from the sidewall and may include a first end opening, a second end opening, and a lumen. A fenestration may be disposed in the sidewall and positioned distal of the second end opening of the branch. A wire segment may include a proximal portion positioned proximal of the proximal end opening and a distal portion positioned distal of the distal end opening. The wire segment extend through the fenestration and through the lumen of the branch in a preloaded configuration.
摘要:
A stent graft (2) for placement in the thoracic arch of a patient has a first tubular body portion (6) with a first lumen therein for placement in the ascending aorta of a patient and a second tubular body portion (8) to extend along the thoracic arch and down the descending aorta. The second tubular body portion is of a lesser diameter than the first tubular body portion. There is a step portion (10) between the first body portion and the second body portion. The step portion is joined to and continuous with the first portion and the second portion. A first side of each of the first body portion, the step portion and the second body portion are substantially aligned so that there is a step (18) defined on a second side opposite to the first side of the body portion. There is an aperture (30) in the step portion and an internal tube (32) extending from the aperture towards the first body portion. The internal tube is divided along part of its length into at least two smaller internal tubes (34, 36) with the smaller internal tubes opening into the first lumen.
摘要:
An apparatus for repairing the function of a diseased valve includes an annular first support member expandable to a first diameter. An annular second support member is spaced axially apart from the first support member and is expandable to a second diameter that is independent of the first diameter. A tubular graft section interconnects the first and second support members. The graft section defines an annulus having a third diameter that is independent of each of the first and second diameters. A prosthetic valve is secured within the annulus of the graft section. The bioprosthetic valve has at least two valve leaflets that are coaptable to permit the unidirectional flow of blood. Methods for repairing the function of a diseased valve and for making the apparatus are also provided.
摘要:
A stent graft delivery device (30) has a pull wire arrangement with a pull wire (46) fastened to the distal end of a nose cone dilator (45) and extending to a wire pull mechanism (60) for the pull wire associated with a handle (52) of the stent graft delivery device. The pull wire can be pulled by the wire pull mechanism to induce a curve in a guide wire catheter (44) distally of the nose cone dilator such that the proximal end of the delivery device more closely fits the shape of a portion of the vasculature of a patient into which the device is deployed.
摘要:
A system for facilitating deployment of an endoluminal prosthesis may include a main tubular graft body including a proximal end opening, a distal end opening, a lumen, and a sidewall. A branch may extend from the sidewall and may include a first end opening, a second end opening, and a lumen. A fenestration may be disposed in the sidewall and positioned distal of the second end opening of the branch. A wire segment may include a proximal portion positioned proximal of the proximal end opening and a distal portion positioned distal of the distal end opening. The wire segment extend through the fenestration and through the lumen of the branch in a preloaded configuration.
摘要:
A stent graft (1) has at least one fenestration (13) or low profile side arm (34). A guide assembly (17) surrounds the fenestration or low profile side arm. The guide assembly has a continuous wall extending laterally away from the outer surface of the stent graft. The continuous wall is substantially elliptical or circular and extends distally of the fenestration at a distal end of the wall and being coincident with a proximal part (25) of the periphery of the fenestration or low profile side arm at a proximal end of the wall (23). The wall acts to define a guide area to guide a flexible probe extended from a side branch vessel to enter the fenestration or low profile side arm. Where there are two fenestrations or low profile side arms there can be a single continuous wall (50) around both or separate walls for each. The wall may have a peripheral wire reinforcement (19).
摘要:
A hybrid stent graft device for treatment of a Type A dissection having a first tubular portion for placement into the ascending aorta and a second tubular portion for extending around the thoracic arch and down the descending aorta is disclosed. The first tubular portion is connectable to the aorta between the sinotubular junction and the brachiocephalic artery so that it essentially replaces the ascending aorta. A temporary bypass tube allows perfusion during an operation. The second tubular portion has an elongate recess outside of the second tubular portion and an aperture defining a fluid flow path into the recess. The recess is intended to engage an outer curve of the thoracic arch to enable blood flow into the arteries of the thoracic arch. An introduction device in combination with the hybrid stent graft described above is also disclosed.
摘要:
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.
摘要:
A pre-loaded stent graft delivery device and stent graft, the stent graft delivery device. The stent graft has at least one fenestration or side arm and the fenestration is preloaded with an indwelling guide wire. Indwelling access sheaths are provided within auxiliary lumens of a pusher catheter and dilators are preloaded into the access sheaths along with the indwelling guide wire. A handle assembly at a distal end of the guide wire catheter. The handle includes a multiport manifold with access ports to the auxiliary lumens in the pusher catheter. Upon deployment of the stent graft into the vasculature of a patient, the indwelling guide wire can be used to facilitate cathertisation of a side branch or target vessel through the fenestration or be used to stabilise the access sheath during catheterisation, advancement of the access sheath into the target vessel and deployment of a covered or uncovered stent therein through the access sheath.