摘要:
A catheter apparatus includes a lesion dilating member disposable at a lesion position in a vessel (e.g. a patient's artery) which is dilatable to open the vessel at the lesion position. An emboli-capturing assembly having a perfusion member and filter is displaced downstream from the lesion dilating member to capture embolic debris released in the fluid flow. The perfusion member may illustratively have peaks and channels formed between adjacent peaks which cooperate with the filter to create trapping pockets that capture embolic debris. The filter may be made from any flexible and porous material with dimensions to pass the fluid and block the emboli. The perfusion member is thereafter deflated to provide for emboli retention in the perfusion member.
摘要:
An embolic protection device includes a filtering assembly having a self-expanding strut assembly and a filter element. The filtering assembly can be attached to a guidewire and deployed within the patient's vasculature into an area of treatment. A restraining sheath maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Interventional devices can be delivered over the guidewire and any embolic debris created and released into the blood stream will enter the filtering assembly. The filtering assembly can be rotatably mounted on the guide wire and may include a dampening element which helps to prevent some shock force that may be transmitted along the guide to the deployed filtering assembly.
摘要:
An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guidewire and is deployed within the patient's vasculature as the guidewire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guidewire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and inner shaft member which apply axial force to the distal ends of the assembly to either expand or contract the struts as needed.
摘要:
An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guidewire and is deployed within the patient's vasculature as the guidewire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guidewire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and inner shaft member which apply axial force to the distal ends of the assembly to either expand or contract the struts as needed.
摘要:
A mask for masking a stent during a coating procedure may include a mask body that has a negative pattern or an approximate negative pattern of a stent pattern being masked by the mask body. An apparatus for selectively coating a predetermined portion of a medical article may include a dispenser of a coating composition, a mask, a device for creating a relative movement between the mask and the medical article.
摘要:
An engaging element for engaging tissue is described. The engaging element may include a first member including at least one tissue engaging portion and a second member including at least one tissue engaging portion. The second member may be pivotally connected to the first member. The engaging element includes a locking mechanism operatively associated with the first and second member. The locking mechanism may be configured to inhibit the relative motion of the first and said second member. An engaging system for engaging tissue is described. The engaging system may include an engaging element for engaging tissue, a first member having at least one tissue engaging portion, and/or a second member including at least one tissue engaging portion. A method for engaging tissue is described. The method may include positioning an engaging element relative to an engaging element delivery device and/or to a portion of tissue.
摘要:
An assembly is provided which can crimp or compress an intraluminal device or measure the radial strength of an intraluminal device. The device includes a first disk and a second disk for imparting movement to a number of spaced apart moving elements attached to linear sliders on the first disk. In one configuration, rotational movement is imparted to the second disk which causes the tips of the moving elements to move is a linear direction toward the center of the opening formed by the elements thereby closing in on the device. In another configuration, rotational movement is imparted to the first disk and the tips move along an arcuate path from the perimeter of the opening toward the center of the opening.