Snare-type probe
First Claim
1. A snare for use in grasping and retrieving articles in medical procedures comprising an elongate proximal segment and a distal segment comprising a flexible wire formed of a superelastic material, said wire defining a loop means for grasping said articles adjacent a distal portion of said proximal segment;
- said loop means being oriented at an angle of greater than 45°
from said adjacent distal portion of the proximal segment.
5 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides a snare for intravascular use having an elongate proximal member and a loop-shaped distal segment oriented at an angle to the adjacent portion of the proximal member. The snare may be formed of a superelastic shape memory alloy, which permits the distal segment to be collapsed for passage through a catheter and yet automatically open into its original, unrestrained configuration upon emerging from the distal tip of the catheter.
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Citations
16 Claims
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1. A snare for use in grasping and retrieving articles in medical procedures comprising an elongate proximal segment and a distal segment comprising a flexible wire formed of a superelastic material, said wire defining a loop means for grasping said articles adjacent a distal portion of said proximal segment;
- said loop means being oriented at an angle of greater than 45°
from said adjacent distal portion of the proximal segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- said loop means being oriented at an angle of greater than 45°
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10. A snare for use in grasping and retrieving articles in medical procedures, comprising an elongate proximal segment having substantially parallel lengths of wire tightly encased in a sheath, and a distal segment comprising a shape memory alloy wire, said wire defining a loop portion adjacent a distal portion of said proximal segment, and said loop portion being oriented at an angle of greater than about 45°
- from said adjacent distal portion of the proximal segment.
- View Dependent Claims (11, 12, 13, 14, 15)
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16. A snare for use in grasping and retrieving articles and medical procedures, comprising an elongate proximal segment including at least two intertwined wire segments, and a distal segment comprising a flexible wire formed of a superelastic material, said wire defining a loop portion adjacent a distal portion of said proximal segment, and said loop portion being oriented at an angle of greater than about 45°
- from said adjacent distal portion of the proximal segment.
Specification