Atraumatic medical device
First Claim
Patent Images
1. A medical device, comprising:
- a handle;
a sheath joined to the handle, the sheath comprising a lumen;
a retrieval basket comprising a proximal end, a distal end, and a plurality of legs, each of the plurality of legs being a continuous loop from a first end to a second end and having an intermediate portion, wherein the first and second ends of the plurality of legs are located at the proximal end of the retrieval basket and the intermediate portion of each of the plurality of legs is located between the first and second ends of the leg, the intermediate portion being positioned at the distal end of the retrieval basket, the retrieval basket achieving a collapsed position when restrained in the lumen of the sheath and an expanded position when unrestrained by the lumen of the sheath; and
a retainer coupled to the distal end of the retrieval basket to secure at least the intermediate portion of one of the plurality of legs to the intermediate portion of another of the plurality of legs, wherein the intermediate portion of each of the plurality of legs includes a notch, wherein at least the intermediate portion of one of the plurality of legs crosses over the intermediate portion of another of the plurality of legs within the retainer, wherein the retainer comprises a plurality of tubes having a substantially constant outer diameter and each defining a hollow passageway, wherein an inner surface of each hollow passageway attaches to the notch of a corresponding one of the plurality of legs, and wherein the hollow passageway of one of the plurality of tubes intersects the hollow passageway of another of the plurality of tubes.
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0 Petitions
Accused Products
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.
42 Citations
17 Claims
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1. A medical device, comprising:
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a handle; a sheath joined to the handle, the sheath comprising a lumen; a retrieval basket comprising a proximal end, a distal end, and a plurality of legs, each of the plurality of legs being a continuous loop from a first end to a second end and having an intermediate portion, wherein the first and second ends of the plurality of legs are located at the proximal end of the retrieval basket and the intermediate portion of each of the plurality of legs is located between the first and second ends of the leg, the intermediate portion being positioned at the distal end of the retrieval basket, the retrieval basket achieving a collapsed position when restrained in the lumen of the sheath and an expanded position when unrestrained by the lumen of the sheath; and a retainer coupled to the distal end of the retrieval basket to secure at least the intermediate portion of one of the plurality of legs to the intermediate portion of another of the plurality of legs, wherein the intermediate portion of each of the plurality of legs includes a notch, wherein at least the intermediate portion of one of the plurality of legs crosses over the intermediate portion of another of the plurality of legs within the retainer, wherein the retainer comprises a plurality of tubes having a substantially constant outer diameter and each defining a hollow passageway, wherein an inner surface of each hollow passageway attaches to the notch of a corresponding one of the plurality of legs, and wherein the hollow passageway of one of the plurality of tubes intersects the hollow passageway of another of the plurality of tubes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of retrieving a material from a body, comprising:
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inserting a medical device into the body, the medical device comprising; a handle; a sheath joined to the handle, the sheath comprising a lumen; a retrieval basket comprising a proximal end, a distal end, and a plurality of legs, each of the plurality of legs being a continuous loop from a first end to a second end and having an intermediate portion, wherein the first and second ends of the plurality of legs are located at the proximal end of the retrieval basket and the intermediate portion of each of the plurality of legs is located between the first and second ends of the leg, the intermediate portion being positioned at the distal end of the retrieval basket, the retrieval basket achieving a collapsed position when restrained in the lumen of the sheath and an expanded position when unrestrained by the lumen of the sheath; and a retainer coupled to the distal end of the retrieval basket to secure at least the intermediate portion of one of the plurality of legs to the intermediate portion of another of the plurality of legs, wherein the intermediate portion of each of the legs includes a notch, wherein at least the intermediate portion of one of the plurality of legs crosses over the intermediate portion of another of the plurality of legs within the retainer, wherein the retainer comprises a plurality of tubes having a substantially constant outer diameter and each defining a hollow passageway, wherein an inner surface of each hollow passageway attaches to the notch of a corresponding one of the plurality of legs, and wherein the hollow passageway of one of the plurality of tubes intersects the hollow passageway of another of the plurality of tubes; positioning the retrieval basket proximate to the material to be retrieved with the retrieval basket in the expanded position; capturing the material with the retrieval basket; and withdrawing the retrieval basket from the body to remove the captured material from the body. - View Dependent Claims (9, 10)
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11. A medical device, comprising:
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a handle; a sheath joined to the handle, the sheath comprising a lumen; a retrieval basket comprising a proximal end, a distal end, and a plurality of legs, each of the plurality of legs being a continuous loop from a first end to a second end and having an intermediate portion, wherein the first and second ends of the plurality of legs are located at the proximal end of the retrieval basket and the intermediate portion of each of the plurality of legs is located between the first and second ends of the leg, the intermediate portion being positioned at the distal end of the retrieval basket, the retrieval basket achieving a collapsed position when restrained in the lumen of the sheath and an expanded position when unrestrained by the lumen of the sheath; and a retainer including a plurality of tubes and coupled to the distal end of the retrieval basket to secure at least the intermediate portion of one of the plurality of legs to the intermediate portion of another of the plurality of legs, wherein at least the intermediate portion of one of the plurality of legs crosses over the intermediate portion of another of the plurality of legs within the retainer, wherein the intermediate portion of the one of the plurality of legs comprises a connecting surface modified relative to adjacent surfaces of the intermediate portion of the one of the plurality of legs, wherein the connecting surface comprises at least one notch;
wherein an inner surface of each of the plurality of tubes attaches to the connecting surface of a corresponding one of the plurality of legs, and wherein each of the plurality of tubes of the retainer includes a substantially constant outer diameter. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification