摘要:
An endoluminal prosthesis includes a tubular main graft body (20) including a sidewall and proximal and distal ends with a first stent (30a) positioned near the proximal end of the main graft body, a second stent (30b) positioned adjacent to and distal of the first stent and an opening (50) in the sidewall positioned longitudinally between a peak of the first stent and a valley of the second stent. A tubular branch (60) is disposed in the opening and is flexibly orientable between a retrograde configuration in which a first end opening is oriented toward the distal end and a second end opening is oriented toward the proximal end and an antegrade configuration in which the first end opening is oriented toward the proximal end and the second end opening is oriented toward the distal end.
摘要:
Disclosed is a pre-loaded stent graft delivery device having a guide wire catheter and a handle (101) including a multi-port manifold with access ports, where an access sheath extends from each access port. A sheath (106) is disposed coaxially around the guide wire catheter and includes two splits that enable the retraction of the sheath while the access sheaths are disposed within the respective access port of the manifold. Also disclosed is a pre-loaded stent graft delivery device (100) comprising a manifold (314), three access sheaths (318,322,326), a tri-lumen catheter (319), and a sheath (306). The manifold has three access ports and a central aperture (350). The three access ports (312, 316, 320) extend distally from the central aperture (350). The tri-lumen catheter (319) extends proximally from the manifold (314) and comprises three auxiliary lumens (392, 394, 396) therethrough. Each access sheath (318, 322, 326) extends through a corresponding auxiliary lumen (392, 394, 396) within the tri-lumen catheter (319). The sheath (306) is disposed coaxially over the tri-lumen catheter (319). The sheath (306) has at least three longitudinal splits formed along a portion of the length of the sheath (306). Each split is aligned with a corresponding access sheath (318, 322, 326) such that the sheath (306) can be at least partially retracted over the access sheaths (318, 322, 326).
摘要:
A prosthesis delivery device (100) comprises a proximal end (103) and a distal end (101), a prosthesis retention section (149) at the proximal end (103), and a prosthesis (200) retained on the prosthesis retention section (149). The prosthesis (200) has a proximal end (202) releasably attached at the prosthesis retention section (149) and a distal end (204) releasably attached at the prosthesis retention section (149). A sheath (110) is slidably disposed over the prosthesis (200). A delivery handle (102) near the distal end (101) the delivery device comprises a rotatable inner cannula (116) having a cannula lumen (118) and cannula handle (108). The cannula handle (108) is rotatable with the inner cannula (116). Further, a positioner handle (106) is releasably engaged with the cannula handle (108). Rotation of the inner cannula (116) releases the proximal end (202) of the prosthesis (200) from the delivery device (100) and withdrawal of the sheath (110) from over the prosthesis (200) releases the distal end (202) of the prosthesis (200) from the delivery device (100).
摘要:
The present embodiments provide systems and methods for deploying at least a portion of a stent. In one embodiment, the system comprises a cannula (30) having an outer surface, and at least one coiled member (40) having proximal and distal ends and a plurality of turns disposed therebetween. One of the proximal and distal ends of the coiled member (40) is secured to the outer surface of the cannula (30), and the other of the proximal and distal ends of the coiled member (40) is unsecured relative to the outer surface of the cannula (30). A portion of a stent (60) is looped around the unsecured end of the coiled member (40) and disposed within spacing between adjacent turns of the coiled member (40). Rotation of the cannula (30) subsequently causes the portion of the stent (60) to disengage from the coiled member (40). A protective cage may encircle the coiled member (30).
摘要:
A woven fabric (300, 400, 500, 620) for a low profile implantable medical device (600) includes a plurality of textile strands of a composite yarn (100, 200, 310, 410, 510, 622) aligned in a first direction interlaced with a plurality of textile strands of the composite yarn (100, 200, 320, 420, 520, 624) aligned in a second direction. The composite yarn includes a combination of a first material (112, 212) and a second material (114, 214). The textile strands have a size between about 10 denier to about 20 denier. The first material (112, 212) has at least one characteristic different from the second material (114, 214) and reacts favorably with blood when placed within an artery.
摘要:
A stent graft assembly having a tubular body (9) and a constraining patch (40) attached to the interior surface of the tubular body (9). The constraining patch (40) delineates a small passageway close to the inner surface of the tubular body (9). A cannula may extend through the passageway.
摘要:
An endoluminal device (10) for repairing an aortic dissection and preventing future aortic dissections, the device including a plurality of struts (16) with at least one of the plurality of struts having a mid-strut portion (22) having two more secondary struts (24), the device being configured to be secured within a false lumen of the aorta and contain filler material in order to encourage thrombosis within the false lumen.