Low profile filter
First Claim
1. A filtering device for collecting debris in a body lumen, comprising:
- a hollow tubular member having a distal portion and a distal tip;
a core wire slidable within the tubular member; and
a braided filter having a first end axially secured about the core wire in a core wire joint, a second end fixedly attached to the distal tip of the tubular member in a distal tip joint, and an opening for receiving debris, wherein when the filtering device is in its delivery configuration the core wire joint is disposed within the tubular member distal portion proximal of the distal tip joint, such that the filter is in an inverted configuration within the tubular member distal portion.
1 Assignment
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Accused Products
Abstract
A low-profile, embolic protection device for collecting particulate debris in a body lumen, wherein an embolic filter is utilized that is expandable and collapsible by push-pull action. A filter first end is axially secured to an elongate inner member and a filter second end is attached to a distal tip of an outer tubular member. The filter is delivered to a treatment site inverted within a distal portion of the outer tubular member. The elongate inner member is slidable within the outer shaft, such that relative longitudinal movement between the elongate inner member and outer shaft reconfigures the filter between its inverted and everted configurations, as well as its expanded and collapsed configurations.
184 Citations
23 Claims
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1. A filtering device for collecting debris in a body lumen, comprising:
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a hollow tubular member having a distal portion and a distal tip;
a core wire slidable within the tubular member; and
a braided filter having a first end axially secured about the core wire in a core wire joint, a second end fixedly attached to the distal tip of the tubular member in a distal tip joint, and an opening for receiving debris, wherein when the filtering device is in its delivery configuration the core wire joint is disposed within the tubular member distal portion proximal of the distal tip joint, such that the filter is in an inverted configuration within the tubular member distal portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of using a filtering device for distal protection during an interventional procedure comprising:
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delivering the filtering device having an elongate inner member, a hollow outer tubular member and a filter to a treatment site within a body lumen, wherein during delivery the filter is held within a distal portion of the tubular member in an inverted configuration;
distally translating the elongate inner member relative to the outer tubular member to expose and transform the filter into an everted configuration distal of the outer tubular member; and
proximally translating the elongate inner member relative to the tubular member to deploy the filter into an expanded configuration, such that an outer surface of the filter is in apposition with the wall of the body lumen for filtering embolic debris during the interventional procedure. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A filtering device for collecting debris in a body lumen, comprising:
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an outer tubular member having a lumen and a distal tip;
an inner tubular member slidable within the outer tubular member lumen; and
a filter having a first end axially secured about the inner tubular member in a first joint, a second end fixedly attached to the distal tip of the outer tubular member in a distal tip joint, and an opening for receiving debris, wherein when the filtering device is in its delivery configuration the first joint is disposed within the outer tubular member lumen proximal of the distal tip joint, such that the filter is in an inverted configuration within the outer tubular member lumen. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification