Filter membrane with increased surface area
First Claim
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1. An embolic protection filtering device, comprising:
- an elongate shaft having a proximal end and a distal end;
a filter coupled to the shaft, the filter including a filter frame, and a filter membrane coupled to the filter frame; and
the filter membrane and the filter frame expandable between a collapsed position and an expanded position, in the expanded position, the filter membrane has a proximal region and a distal region, the proximal region defining a generally smooth sided open filter mouth and the distal region includes including one or more pleats, wherein the pleats are defined by one or more bonds between the filter membrane and the shaft.
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Abstract
A filtering device with an increased surface area, and method of making and using the same. The present invention comprises a filtering device including an elongate shaft and a filter coupled to the shaft. The filter may include a filter membrane configured to have an increased surface area.
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Citations
12 Claims
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1. An embolic protection filtering device, comprising:
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an elongate shaft having a proximal end and a distal end; a filter coupled to the shaft, the filter including a filter frame, and a filter membrane coupled to the filter frame; and the filter membrane and the filter frame expandable between a collapsed position and an expanded position, in the expanded position, the filter membrane has a proximal region and a distal region, the proximal region defining a generally smooth sided open filter mouth and the distal region includes including one or more pleats, wherein the pleats are defined by one or more bonds between the filter membrane and the shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A medical device, comprising:
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an elongate shaft having a proximal region and a distal region; a filter coupled to the shaft adjacent the distal region; the filter including a filter hoop, one or more struts extending between the filter hoop and the shaft, and a filter membrane coupled to the filter hoop and extending distally therefrom; and the filter membrane including a proximal region and a pleated distal region, wherein the pleated distal region is defined by one or more longitudinal bonds between the filter membrane and the elongate shaft, the pleated distal region being configured to augment the surface area of the filter. - View Dependent Claims (9, 10, 11, 12)
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Specification