摘要:
An anchor device to simplify catheterization procedures, particularly for insertion and maneuvering of large catheters in tortuous arteries, vessels, or other lumen is disclosed. In some embodiments, the anchor device includes an anchor stent formed from a plurality of zig-zag shaped wire elements that are coupled together. The device further includes a plurality of connector struts attached at a proximal end of the anchor stent, the connector struts coalescing to form a strut tip. A guide device, such as a guidewire, is attached to the anchor stent at the strut tip and may be used to guide the anchor stent into the arteries or other vessels and toward a target treatment site.
摘要:
A computer implemented method for controlling access to a computer program prevents access unless conditions are satisfied. The conditions may include access limits and educational requirements. The access limits may include access durations and number of access times. Access in excess of the limits may be prevented. The educational requirements may include accessing educational content, completing a test on the content, and obtaining a passing score.
摘要:
A method of repositioning or fixing a first vertebrae or portion of a first vertebrae comprising fixing a bone screw in the first vertebrae and a bone screw in a second vertebrae, where each bone screw has a portal, and inflating an inflatable balloon between the portals, thereby creating a rigid structure between the bone screws.
摘要:
A cardiac valve implanted within the heart is given where a expansible valve maintained in a collapsed form by cold temperature is percutaneously inserted along a releasable guide wire in a cooled sheath and when positioned is expanded by withdrawing the cold temperature.
摘要:
A flow diversion device for the treatment of intracranial aneurysms and other medical conditions is disclosed. The flow diversion device may include a generally tubular wire stent frame formed from a plurality of zig-zag shaped wire elements that are coupled together. The device further includes a base layer of graft material coupled to the wire stent frame and surrounding at least a portion thereof, the wire stent frame maintaining the base layer in an open condition. In some embodiments, the base layer may be formed of porous graft material having a plurality of slits formed in the longitudinal direction. The slits may have a different shape in a compressed configuration and an expanded configuration. The slits provide a passageway for a small blood flow to maintain the long-term patency of important small side branches, while also reducing blood flow to the aneurysm to promote occlusion and avoid potential rupture.
摘要:
A flow diversion device for the treatment of intracranial aneurysms and other medical conditions is disclosed. The flow diversion device may include a generally tubular wire stent frame formed from a plurality of zig-zag shaped wire elements that are coupled together. The device further includes a base layer of graft material coupled to the wire stent frame and surrounding at least a portion thereof, the wire stent frame maintaining the base layer in an open condition. In some embodiments, the base layer may be formed of porous graft material having a plurality of pores formed thereon to provide a passageway for a small blood flow to maintain the long term patency of important small side branches, while also reducing blood flow to the aneurysm to promote occlusion and avoid potential rupture.
摘要:
A flow diversion device for the treatment of intracranial aneurysms and other medical conditions is disclosed. The flow diversion device may include a generally tubular wire stent frame formed from a plurality of zig-zag shaped wire elements that are coupled together. The device further includes a base layer of graft material coupled to the wire stent frame and surrounding at least a portion thereof, the wire stent frame maintaining the base layer in an open condition. In some embodiments, the base layer may be formed of porous graft material having a plurality of pores formed thereon to provide a passageway for a small blood flow to maintain the long term patency of important small side branches, while also reducing blood flow to the aneurysm to promote occlusion and avoid potential rupture.
摘要:
A method of repositioning or fixing a first vertebrae or portion of a first vertebrae comprising fixing a bone screw in the first vertebrae and a bone screw in a second vertebrae, where each bone screw has a portal, and inflating an inflatable balloon between the portals, thereby creating a rigid structure between the bone screws.
摘要:
A surgical device combines an occlusion balloon to block antegrade flow of blood in the internal carotid artery during an angioplasty procedure with an exchange guidewire to facilitate the insertion of devices for performing the angioplasty procedure. The occlusion balloon/guidewire device comprises a microcatheter with a soft platinum guidewire extending therein. A silicone occlusion balloon is attached to the distal end of the microcatheter. A self-sealing valve at the distal end of the balloon permits the guidewire to extend distally therefrom. A Tuohy-Borst adapter is attached to the proximal end of the microcatheter to permit inflation of the occlusion balloon. A guidewire extension is inserted through the Tuohy-Borst adapter to seal the microcatheter once the balloon has been inflated. The Tuohy-Borst adapter is then removed over the guidewire extension member allowing the microcatheter to be utilized as an exchange guidewire.