Torqueable and Deflectable Medical Device Shaft
First Claim
1. A medical device, comprising:
- an elongated, deflectable shaft having a proximal shaft portion, an intermediate shaft portion, and a distal shaft portion, the proximal portion and intermediate portions comprising a tubing and the distal shaft portion comprising a braided member;
a plurality of slits defined in the elongated shaft;
a handle disposed adjacent to a proximal end of the elongated shaft; and
one or more steering wires having a first end attached to the handle and a second end attached adjacent to the distal shaft portion of the elongated shaft;
wherein the elongated shaft includes a transition in stiffness from the proximal shaft portion to the distal shaft portion.
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Accused Products
Abstract
A medical device shaft for connection with a handle and for insertion within a body includes an elongated, deflectable shaft having a proximal shaft portion, an intermediate shaft portion, and a distal shaft portion. The elongated, deflectable shaft includes a transition in stiffness from the proximal shaft portion to the distal shaft portion. In a preferred implementation, the shaft includes a plurality of slits that extend perpendicular to a longitudinal axis of the shaft. Varying at least one of the number of slits, the location of slits, the frequency of slits, the orientation of the slits, the size of the slits, and the depth of the slits varies the transition of stiffness.
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Citations
20 Claims
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1. A medical device, comprising:
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an elongated, deflectable shaft having a proximal shaft portion, an intermediate shaft portion, and a distal shaft portion, the proximal portion and intermediate portions comprising a tubing and the distal shaft portion comprising a braided member; a plurality of slits defined in the elongated shaft; a handle disposed adjacent to a proximal end of the elongated shaft; and one or more steering wires having a first end attached to the handle and a second end attached adjacent to the distal shaft portion of the elongated shaft; wherein the elongated shaft includes a transition in stiffness from the proximal shaft portion to the distal shaft portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A medical device, comprising:
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an elongate member including a proximal portion, an intermediate portion, and a distal portion, the proximal portion and intermediate portions comprising a generally tubular member and the distal portion comprising a braided member; a plurality of slits defined in the proximal and intermediate portions of the elongate member; a handle disposed adjacent to a proximal end of the elongate member; a steering knob attached to the handle; and one or more steering wires having a first end attached to the steering knob and a second end attached adjacent to the distal portion of the elongate member; wherein at least one of the number of slits, the location of slits, the frequency of slits, the orientation of the slits, the size of the slits and the depth of the slits are varied to vary the stiffness of the proximal and intermediate portions of the elongate member. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A medical device, comprising:
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an elongated tubular member including a proximal end and a distal end; a braided member attached to the distal end of the elongated tubular member and extending distally therefrom; and a plurality of slits defined in the tubular member and extending perpendicularly to a longitudinal axis of the tubular member; wherein at least one of the number of slits, the location of slits, the frequency of slits, the orientation of the slits, the size of the slits and the depth of the slits are varied to vary the stiffness of the proximal and intermediate portions of the tubular member. - View Dependent Claims (18, 19, 20)
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Specification