Device for removing an elongated structure implanted in biological tissue
First Claim
1. A device for removing an elongated structure implanted in biological tissue, comprising:
- a sheath having a first wall defining a first lumen therein, the first lumen having a distal end and being dimensioned to receive the elongated structure therein, and being adapted to allow advancement of the sheath along the elongated structure, the sheath also having a second wall defining a second lumen therein; and
a snare contained in at least the second lumen in the sheath, the snare having a snare loop extending out of at least the second lumen, at and generally extending around the distal end of the first lumen in the sheath, the snare loop being closeable about the elongated structure when the elongated structure is received in the first lumen of the sheath.
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Accused Products
Abstract
A snare-type device (10) for removing an elongated structure (54) such as, for example, a pacemaker lead. The device (10) first includes a sheath (12) having a first lumen (16) formed therein, the first lumen (16) having a distal end (24) and being dimensioned to receive the elongated structure (54) therein, and being adapted to allow advancement of the sheath (12) along the elongated structure (54). The sheath (12) also has second and third parallel lumens (28 and 36) formed therein, all of the first, second and third lumens (16, 28 and 36) being unitarily formed in the sheath (12). The device (10) also includes a snare (42) contained in the second and third lumens (28 and 36) in the sheath (12). The snare (42) has a snare loop (44 or 52) extending out of the second and third lumens (28 and 36), at and generally extending around the distal end (24) of the first lumen (16).
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Citations
19 Claims
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1. A device for removing an elongated structure implanted in biological tissue, comprising:
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a sheath having a first wall defining a first lumen therein, the first lumen having a distal end and being dimensioned to receive the elongated structure therein, and being adapted to allow advancement of the sheath along the elongated structure, the sheath also having a second wall defining a second lumen therein; and
a snare contained in at least the second lumen in the sheath, the snare having a snare loop extending out of at least the second lumen, at and generally extending around the distal end of the first lumen in the sheath, the snare loop being closeable about the elongated structure when the elongated structure is received in the first lumen of the sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A device for removing an elongated structure implanted in biological tissue, comprising:
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a sheath having a first wall defining a first lumen therein, the first lumen having a distal end and being dimensioned to receive the elongated structure therein, and being adapted to allow advancement of the sheath along the elongated structure;
the sheath also having second and third walls defining second and third parallel lumens therein, the second and third lumens being coterminal with the first lumen and the sheath, and all of the first, second and third lumens being unitarily formed in the sheath; and
a snare contained in the second and third lumens in the sheath, the snare having a snare loop extending out of the second and third lumens at and generally extending around the distal end of the first lumen in the sheath;
wherein the snare comprises one leg disposed in the second lumen and another leg disposed in the third lumen, the legs being connected to the snare loop, and a graspable pull connected to the legs of the snare opposite the snare loop; and
wherein the snare loop depends generally perpendicularly from distal ends of the second and third lumens, and is closeable about the elongated structure when the elongated structure is received in the first lumen of the sheath.
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19. A method for removing an elongated structure implanted in biological tissue, carried out with a device comprising:
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a sheath having a first wall defining a first lumen therein, the first lumen having a distal end and being dimensioned to receive the elongated structure therein, and being adapted to allow advancement of the sheath along the elongated structure, the sheath also having a second wall defining a second lumen therein; and
a snare contained in at least the second lumen in the sheath, the snare having a snare loop extending out of at least the second lumen, at and generally extending around the distal end of the first lumen in the sheath, the snare loop being closeable about the elongated structure when the elongated structure is received in the first lumen of the sheath;
the method comprising the steps of;
positioning the sheath of the device so that the elongated structure is received in the first lumen of the sheath; and
closing the snare loop about the elongated structure.
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Specification