Angioplasty guiding catheters and methods for performing angioplasty
First Claim
1. An angioplasty guiding catheter comprising:
- an elongated first member having at least one lumen therethrough and a tip;
at least one leg member, coupled to the first member, radially extendable from a retracted position generally in contact with the first member to an extended position generally away from the first member, for abutment against an internal wall of a patient'"'"'s cardiovascular system; and
means for extending the leg member from the retracted position to the extended position, the extending means being coupled to the leg member.
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Accused Products
Abstract
The invention relates to an angioplasty guiding catheter and methods for performing coronary angioplasty on a patient, to dilate constrictions in blood vessels. The guiding catheter has an elongated first member having at least one lumen therethrough and a tip, at least one leg member, coupled to the first member, radially extendable from a retracted position generally in contact with the first member to an extended position generally away from the first member, for abutment against an internal wall of patient'"'"'s cardiovascular system, and means for extending the leg member from the retracted position to the extended position, coupled to the leg member. The angioplasty methods of the present invention involves entering the patient'"'"'s cardiovascular system, pericutaneously patient'"'"'s cardiovascular system to a desired translating through the location proximate a constriction in a blood vessel, abutting against an internal wall of the cardiovascular system, advancing towards the constriction in a direction generally opposite the abutting, for overcoming resistance by the constriction to the advancing and dilating the vessel at the constriction site.
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Citations
20 Claims
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1. An angioplasty guiding catheter comprising:
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an elongated first member having at least one lumen therethrough and a tip; at least one leg member, coupled to the first member, radially extendable from a retracted position generally in contact with the first member to an extended position generally away from the first member, for abutment against an internal wall of a patient'"'"'s cardiovascular system; and means for extending the leg member from the retracted position to the extended position, the extending means being coupled to the leg member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An angioplasty guiding catheter comprising:
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an elongated first member having first and second luma and a tip; at least one leg member, radially extendable from a retracted position generally in contact with the first member to an extended position generally away from the first member, having a resilient, elongated second member slidably engaged in the second lumen, the second member having a portion thereof bendable in a radially extendable bowed configuration from the retracted position to the extended position for abutment against an internal wall of a patient'"'"'s cardiovascular system the second member further having a first end embedded in the first member; and means for extending the second member, having a thumbwheel mechanism coupled to the second member, so that rotation of the thumbwheel slidably advances the second member relative to the first member second lumen and bends the second member into the bowed, extended position. - View Dependent Claims (12)
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13. In a patient, a method for performing angioplasty of a constriction site in a vessel of the patient'"'"'s cardiovascular system comprising:
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entering the cardiovasular system; pericutaneously translating through the cardiovascular system to a desired location proximate the constriction; abutting against an internal wall of the patient'"'"'s cardiovascular system; advancing towards the constriction in a direction generally opposite the abutting, for overcoming resistance by the constriction to the advancing; and dilating the vessel at the constriction. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification