摘要:
An implant delivery system has one or more interlock assemblies which connect the implant delivery catheter to the implant, an improved inner tubular member and an outer tubular member. The interlock assemblies, improved inner tubular member and outer tubular member cooperate to place the implant in tension during deployment, thereby reducing implant deployment force.
摘要:
An implant delivery system has one or more interlock assemblies which connect the implant delivery catheter to the implant, an improved inner tubular member and an outer tubular member. The interlock assemblies, improved inner tubular member and outer tubular member cooperate to place the implant in tension during deployment, thereby reducing implant deployment force.
摘要:
According to one aspect of the present invention, a fatigue resistant stent comprises a flexible tubular structure having an inside diameter, an outside diameter, and a sidewall therebetween and having apertures extending through the sidewall. According to other aspects of the invention, processes for making a fatigue resistant stent are disclosed. According to further aspects of the invention, delivery systems for a fatigue resistant stent and methods of use are provided.
摘要:
According to one aspect of the present invention, a fatigue resistant stent comprises a flexible tubular structure having an inside diameter, an outside diameter, and a sidewall therebetween and having apertures extending through the sidewall. According to other aspects of the invention, processes for making a fatigue resistant stent are disclosed. According to further aspects of the invention, delivery systems for a fatigue resistant stent and methods of use are provided.
摘要:
A stent for reducing the passage of emboli into body lumen once deployed includes a structural portion and a barrier portion. The structural portion, when expanded in a conduit, provides sufficient strength to maintain an open lumen in the conduit. The barrier portion reduces migration of emboli from the wall of the conduit through the structural portion and into the lumen. Stent delivery systems capable of delivering and deploying the stent are disclosed.
摘要:
A stent includes a substantially cylindrical segment which is deployed in the renal vessel and a flared segment which is deployed in ostial and aortic regions of the vessel. The substantially cylindrical segment provides superior radial strength for maintaining dilated diameter of the renal vessel. The flared segment, which is formed by plurality of slits extending through the sidewall of the stent, expands to conform to the ostial and aortic regions of the vessel. The flared segment can be balloon dilated to enhance conformance of the flared stented segment to the ostial and aortic regions. A stent delivery system capable of delivering and deploying the substantially cylindrical segment and the flared segment is also disclosed.
摘要:
A stent for reducing the passage of emboli into body lumen once deployed includes a structural portion and a barrier portion. The structural portion, when expanded in a conduit, provides sufficient strength to maintain an open lumen in the conduit. The barrier portion reduces migration of emboli from the wall of the conduit through the structural portion and into the lumen. Stent delivery systems capable of delivering and deploying the stent are disclosed.
摘要:
A method for the placement of medical devices within a body lumen defined by a vessel wall is disclosed. The method includes the steps of providing a first and second medical device each having a tubular body with a plurality of slits extending through the side wall to form a plurality of sidewall segments, disposing the first medical device within the body lumen . . . initiating radial expansion of the second medical device such that flared second wall segments at least partially cover the slits of the first medical device. Medical devices and a system of medical devices capable of performing the method are also disclosed.
摘要:
The present invention provides devices for removing an embolus or thrombus. The device includes an elongate member configured for insertion into the vasculature, an expandable member that extends from the distal end of the elongate member, and a flow restrictor associated with a proximal portion of the expandable member. The expandable member is configured to transition from a compacted state to an expanded state, in which the expandable portion engages with the embolus. The flow restrictor is configured to restrict blood flow and generate a low pressure zone at a location in the vasculature that is distal to the flow restrictor.
摘要:
An access tube has a central passage and at least one lumen extending axially between the central passage and an outside wall of the access tube. The lumen carries therein a piercing member for accessing an anatomic space, such as a pericardial space between the parietal pericardia and the visceral pericardia. While the access tube is positioned against the parietal pericardium, a distal end of the piercing member engages and penetrates the parietal pericardium. The distal end of the piercing member entering the anatomic space can then allow the piercing member to advance and form into a supporting structure to create a working space. After the working space is created, an access device can be introduced through the access tube into the pericardial space to perform a variety of procedures inside a patient.