Atherectomy device and method
First Claim
Patent Images
1. An atherectomy device comprising:
- a flexible member having proximate and distal ends;
a housing disposed at the distal end of the flexible member, said housing having a cutout extending longitudinally on one side thereof and having a length greater than the width of the housing;
cutting means disposed within the housing;
drive means for translating the cutting means relative to the housing so that said cutting means will move past the cutout in the housing; and
means on the housing for urging the housing in the direction of the cutout when the housing is in a blood vessel.
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Accused Products
Abstract
Atherectomy device having a generally cylindrical housing formed of a relatively rigid material. The housing has rounded distal and proximal end portions. The housing is formed with a cutout extending longitudinally of the housing on one side of the housing. An atheroma cutter is disposed to the proximal end of the housing and is used for advancing the housing into the arterial passage. A flexible drive cable extends through the flexible guide and is connected to the atheroma cutter for operation of the atheroma cutter.
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Citations
60 Claims
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1. An atherectomy device comprising:
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a flexible member having proximate and distal ends; a housing disposed at the distal end of the flexible member, said housing having a cutout extending longitudinally on one side thereof and having a length greater than the width of the housing; cutting means disposed within the housing; drive means for translating the cutting means relative to the housing so that said cutting means will move past the cutout in the housing; and means on the housing for urging the housing in the direction of the cutout when the housing is in a blood vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An atherectomy device comprising:
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a flexible member having proximate and distal ends; a housing disposed at the distal end of the flexible member, said housing having a cutout extending longitudinally on one side thereof and having a length greater than the width of the housing; cutting means having an arcuate cutting edge disposed within the housing; means for longitudinally translating the cutting means relative to the housing so that said cutting means will move past the cutout in the housing; and means for rotating the cutting means while it is being longitudinally translated, whereby atheroma extending through the cutout into the housing may be severed. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An atherectomy device comprising:
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a flexible member having proximate and distal ends; a housing disposed at the distal end of the flexible member, said housing having a cutout extending longitudinally on one side thereof and having a length greater than the width of the housing; cutting means disposed within the housing; drive means for translating the cutting means relative to the housing so that said cutting means will move past the cutout in the housing; and means on the housing for guiding the flexible member through a patient'"'"'s vascular system. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. An atherectomy device comprising:
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a flexible member having a proximate and distal ends and a lumen extending between said proximate and distal ends; a cylindrical housing disposed at the distal end of the flexible member, said housing having a cutout extending longitudinally on one side thereof and having a length greater than the diameter of the housing; an elongate torque member disposed within the lumen and extending from the proximal end of the flexible member in to the cylindrical housing; a cutter member having an arcuate cutting edge attached to a distal end of the flexible torque cable within the housing; means for axially translating a proximal end of the torque cable, whereby the cutter may be moved past the cutout in the cylindrical housing; a motor attached to the proximal end of the elongate torque member, whereby the cutter member may be rotated while it is being axially moved; means on the housing for urging the housing in the direction of the cutout when the housing is in a blood vessel; and means on the housing for guiding the flexible member through a patient'"'"'s vascular system. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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33. A method for removing atheromic material from a blood vessel, said method comprising:
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(a) positioning a housing having a longitudinally extending cutout within the blood vessel proximate an atheroma, said cutout having a length greater than the width of the housing; (b) urging the cutout against the atheroma so that an elongate portion of the atheromic material enters the housing; and (c) translating a cutting blade past the cutout while the housing is held generally in place relative to the atheroma, whereby the elongate portion of the atheromic material is severed and captured within the housing. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A method for removing atheromic material from a blood vessel, said method comprising:
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(a) positioning a housing having a longitudinally-extending cutout within the blood vessel proximate an atheroma, said cutout having a length greater than the width of the housing; (b) urging the cutout against the atheroma so that an elongate portion of the atheromic material enters the housing; and (c) translating and rotating a cup-shaped blade past the cutout while the housing remains urged against the atheroma, whereby the elongate portion of the atheromic material is severed and collected within the housing and the likelihood of releasing severed atheromic material into the blood vessel is minimized. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52)
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53. An atherectomy device comprising:
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a flexible member having proximate and distal ends; a housing disposed at the distal end of the flexible member, said housing having a cutout extending longitudinally on one side thereof, wherein the cutout has a length greater than the width of the housing and the remaining portion of the housing in the vicinity of the cutout forms substantially a semi-cylinder; cutting means having an arcuate cutting edge disposed within the housing; means for longitudinally translating the cutting means relative to the housing so that said cutting means will advance past the cutout in the housing; and means for rotating the cutting means while it is being longitudinally translated, whereby atheroma extending through the cutout into the housing may be severed. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60)
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Specification