Guidewire apparatus for temporary distal embolic protection

a technology of guidewires and embolic protection, which is applied in the field of intraluminal devices, can solve problems such as ischaemic events
US20050216053A1Inactive Publication Date: 2005-09-29MEDTRONIC VASCULAR INC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
MEDTRONIC VASCULAR INC
Publication Date
2005-09-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

A guidewire apparatus for use during percutaneous catheter interventions, such as angioplasty or stent deployment. A protection element comprising a filter or an occluder is mounted near the distal end of a steerable guidewire, which guides a therapeutic catheter. The guidewire apparatus comprises a hollow shaft movably disposed about a core wire and, optionally, a slippery liner interfitted there between. The shaft and core wire control relative displacement of the ends of the protection element, causing transformation of the protection element between a deployed configuration and a collapsed configuration.
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Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This patent application is a continuation-in-part of U.S. patent application Ser. No. 09 / 918,441 to Douk et al. filed Jul. 27, 2001, which is a continuation-in-part of U.S. patent application Ser. No. 09 / 824,832 to Douk et al. filed Apr. 3, 2001 entitled “Temporary Intraluminal Filter Guidewire and Methods of Use.”FIELD OF THE INVENTION

[0002] The present invention relates generally to intraluminal devices for capturing particulate in the vessels of a patient. More particularly, the invention relates to a filter or an occluder for capturing emboli in a blood vessel during an interventional vascular procedure, then removing the captured emboli from the patient after completion of the procedure. Furthermore, the invention concerns a filter or an occluder mounted on a guidewire that can also be used to direct an interventional catheter to a treatment site within a patient. BACKGROUND OF THE INVENTION

[0003] A variety of treatments exists fo...

Claims

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