Atraumatic medical device
First Claim
Patent Images
1. A retrieval basket, comprising:
- a plurality of legs; and
a U-shaped retainer positioned at a distal end of the retrieval basket and coupled to the plurality of legs, the U-shaped retainer including a lumen defined by an arch-shaped wall having a roof extending between first and second surfaces of the arch-shaped wall, wherein the arch-shaped wall and first and second surfaces are a single continuous member, the U-shaped retainer further including a first opening defined and encircled by the first surface of the arch-shaped wall and a second opening defined and encircled by the second surface of the arch-shaped wall, wherein the first opening includes a continuous closed perimeter completely surrounded by the first surface, and wherein the second opening includes a continuous closed perimeter completely surrounded by the second surface;
wherein the plurality of legs are retained within the lumen and the first and second openings, wherein the lumen extends from a first side surface of the U-shaped retainer to a second side surface of the U-shaped retainer and is completely open opposite the roof from the first side surface to the second side surface, and wherein the U-shaped retainer is completely open on each side surface opposite the first and second side surfaces of the U-shaped retainer.
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Abstract
A medical device, and related method, for manipulating material, such as calculi, within a patient'"'"'s body includes a handle, a sheath, a retrieval basket, and a retainer coupled to the distal end of the retrieval basket. The retrieval basket includes a plurality of legs, each of which includes an intermediate portion located at the distal end of the retrieval basket. The retainer secures at least the intermediate portion of one of the plurality of legs to the intermediate portion of another of the plurality of legs.
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Citations
16 Claims
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1. A retrieval basket, comprising:
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a plurality of legs; and a U-shaped retainer positioned at a distal end of the retrieval basket and coupled to the plurality of legs, the U-shaped retainer including a lumen defined by an arch-shaped wall having a roof extending between first and second surfaces of the arch-shaped wall, wherein the arch-shaped wall and first and second surfaces are a single continuous member, the U-shaped retainer further including a first opening defined and encircled by the first surface of the arch-shaped wall and a second opening defined and encircled by the second surface of the arch-shaped wall, wherein the first opening includes a continuous closed perimeter completely surrounded by the first surface, and wherein the second opening includes a continuous closed perimeter completely surrounded by the second surface; wherein the plurality of legs are retained within the lumen and the first and second openings, wherein the lumen extends from a first side surface of the U-shaped retainer to a second side surface of the U-shaped retainer and is completely open opposite the roof from the first side surface to the second side surface, and wherein the U-shaped retainer is completely open on each side surface opposite the first and second side surfaces of the U-shaped retainer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A retrieval basket, comprising:
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a plurality of legs; and a U-shaped retainer positioned at a distal end of the retrieval basket and coupled to the plurality of legs, the U-shaped retainer including a lumen defined by an arch-shaped wall having a roof extending between first and second surfaces of the arch-shaped wall, the U-shaped retainer further including a first opening and a second opening, wherein the first and second openings are defined and encircled by opposite sides of the arch-shaped wall, wherein the first and second openings are in communication with the lumen, wherein the first opening includes a continuous closed perimeter completely surrounded by the first surface, and wherein the second opening includes a continuous closed perimeter completely surrounded by the second surface; wherein an intermediate portion of a first leg is retained within the lumen, and an intermediate portion of a second leg extends through the first and second openings and is transverse to the intermediate portion of the first leg, wherein the lumen extends from a first side surface of the U-shaped retainer to a second side surface of the U-shaped retainer and is completely open opposite the roof from the first side surface to the second side surface, wherein the distance between the intermediate portion of the first leg and the roof is less than the distance between the intermediate portion of the second leg and the roof. - View Dependent Claims (10, 11, 12)
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13. A retrieval basket, comprising:
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a plurality of legs; and a U-shaped retainer positioned at a distal end of the retrieval basket and coupled to the plurality of legs, the U-shaped retainer including a lumen defined by an arch-shaped wall having a roof extending between first and second surfaces of the arch-shaped wall, the U-shaped retainer further including a first opening and a second opening, wherein the first and second openings are defined by opposite sides of the arch-shaped wall, and wherein the first and second openings are in communication with the lumen, and wherein the first opening includes a continuous closed perimeter completely surrounded by the first surface, and wherein the second opening includes a continuous closed perimeter completely surrounded by the second surface; wherein an intermediate portion of a first leg extends through the first opening and the lumen, and an intermediate portion of a second leg extends through the second opening and the lumen, wherein the lumen extends from a first side surface of the U-shaped retainer to a second side surface of the U-shaped retainer and is completely open opposite the roof from the first side surface to the second side surface, wherein the first and second legs do not intersect. - View Dependent Claims (14, 15, 16)
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Specification