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US 6,350,266 B1Granted
Hybrid stone retrieval device
AssigneeSciMed Life Systems, Inc.
InventorsCurtis White, Brad Elliott, James S. Bates
Life of this patent
Estimating the term…
Abstract
Baskets with multiple portions and multiple deployed configurations allow the capture and release of material within the body.
Claims25
A medical instrument, comprising:
- a proximal handle;
- a sheath extending from the handle and including a lumen, the sheath including a distal end away from the handle;
- a retrieval assembly comprising a plurality of legs, at least one of the legs comprising a proximal portion and a distal portion and a joint for connecting the proximal and distal portions, the proximal portion comprising a first material, the distal portion comprising a second material that is different than the first material, the retrieval assembly and sheath moveable relative to each other to achieve a collapsed position of the retrieval assembly in which the retrieval assembly is within the lumen of the sheath and another position of the retrieval assembly in which at least a portion of the retrieval assembly extends from the distal end of the sheath and assumes a three-dimensioned shape out of the lumen of the sheath.
A medical instrument, comprising:
- a proximal handle;
- a sheath extending from the handle and including a lumen, the sheath including a distal end away from the handle;
- and
- a retrieval assembly comprising a proximal portion and distal portion, the proximal portion comprising a first material, the distal portion comprising a second material, wherein the second material is more flexible than the first material, the retrieval assembly and the sheath moveable relative to each other to achieve a collapsed position of the retrieval assembly in which the retrieval assembly is within the lumen of the sheath and another position of the retrieval assembly in which at least a portion of the retrieval assembly extends from the distal end of the sheath and assumes a three-dimensioned shape out of the lumen of the sheath.
1 more element
A medical instrument, comprising:
- a proximal handle;
- a sheath extending from the handle and including a lumen, the sheath including a distal end away from the handle;
- and
- a retrieval assembly comprising a plurality of legs, at least one of the legs comprising a proximal portion and a distal portion, the proximal portion comprising a first material, the distal portion comprising a second material that is different than the first material, the retrieval assembly and sheath moveable relative to each other to achieve a collapsed position of the retrieval assembly in which the retrieval assembly is within the lumen of the sheath and another position of the retrieval assembly in which at least a portion of the retrieval assembly extends from the distal end of the sheath and assumes a three-dimensioned shape out of the lumen of the sheath.
1 more element
A medical instrument comprising:
- a proximal handle;
- a sheath extending from the handle and including a lumen, the sheath including a distal end away from the handle;
- and
- a retrieval assembly comprising a proximal portion and a distal portion and a plurality of legs, the proximal portion comprising a first material, the distal portion comprising a second material that is different than the first material, wherein one of the legs comprises a proximal portion and a distal portion, and the proximal leg portion is straight and the distal leg portion is bulbous, the retrieval assembly and the sheath moveable relative to each other to achieve a collapsed position of the retrieval assembly in which the retrieval assembly is within the lumen of the sheath and another position of the retrieval assembly in which at least a portion of the retrieval assembly extends from the distal end of the sheath and assumes a three-dimensional shape out of the lumen of the sheath.
1 more element
A medical instrument comprising:
- a proximal handle;
- a sheath extending from the handle and including a lumen, the sheath including a distal end away from the handle;
- and
- a retrieval assembly comprising a proximal portion and a distal portion and a plurality of legs, the proximal portion comprising a first material, the distal portion comprising a second material that is different than the first material, wherein one of the legs comprises a proximal portion and a distal portion, and the proximal leg portion is bulbous and the distal leg portion is bulbous, the retrieval assembly and the sheath moveable relative to each other to achieve a collapsed position of the retrieval assembly in which the retrieval assembly is within the lumen of the sheath and another position of the retrieval assembly in which at least a portion of the retrieval assembly extends from the distal end of the sheath and assumes a three-dimensional shape out of the lumen of the sheath.
1 more element
A method for retrieving material in a body comprising the steps of:
- inserting a medical instrument into a body, the medical instrument comprising:
- a proximal handle;
- a sheath extending from the handle and including a lumen, the sheath including a distal end away from the handle;
- a retrieval assembly comprising a proximal portion and distal portion, the proximal portion comprising a first material, the distal portion comprising a second material, wherein the second material is more flexible than the first material, the retrieval assembly and the sheath moveable relative to each other to achieve a collapsed position of the retrieval assembly in which the retrieval assembly is within the lumen of the sheath and another position of the retrieval assembly in which at least a portion of the retrieval assembly extends from the distal end of the sheath and assumes a three-dimensioned shape out of the lumen of the sheath;
- capturing material in the retrieval assembly;
- and,
- withdrawing the retrieval assembly with the captured material from the body.
4 more elements
A method for retrieving material in a body comprising the steps of:
- inserting a medical instrument into a body, the medical instrument comprising:
- a proximal handle;
- a sheath extending from the handle and including a lumen, the sheath including a distal end away from the handle;
- and
- a retrieval assembly comprising a plurality of legs, at least one of the legs comprising a proximal portion and a distal portion and a joint for connecting the proximal and distal portions, the proximal portion comprising a first material, the distal portion comprising a second material that is different than the first material, the retrieval assembly and sheath moveable relative to each other to achieve a collapsed position of the retrieval assembly in which the retrieval assembly is within the lumen of the sheath and another position of the retrieval assembly in which at least a portion of the retrieval assembly extends from the distal end of the sheath and assumes a three-dimensioned shape out of the lumen of the sheath;
- capturing material in the retrieval assembly;
- and,
- withdrawing the retrieval assembly with the captured material from the body.
5 more elements
A method for retrieving material in a body comprising the steps of:
- inserting a medical instrument into a body, the medical instrument comprising:
- a proximal handle;
- a sheath extending from the handle and including a lumen, the sheath including a distal end away from the handle;
- and
- a retrieval assembly comprising a plurality of legs, at least one of the legs comprising a proximal portion and a distal portion, the proximal portion comprising a first material, the distal portion comprising a second material that is different than the first material, the retrieval assembly and sheath moveable relative to each other to achieve a collapsed position of the retrieval assembly in which the retrieval assembly is within the lumen of the sheath and another position of the retrieval assembly in which at least a portion of the retrieval assembly extends from the distal end of the sheath and assumes a three-dimensioned shape out of the lumen of the sheath;
- capturing material in the retrieval assembly;
- and,
- withdrawing the retrieval assembly with the captured material from the body.
5 more elements
Dependencies are inferred from the claim text.