Embolic protection device with locking device
First Claim
1. A device for locking onto a guidewire, comprising:
- an element transversely movable along the guidewire, the element comprising a plurality of portions; and
a biasing member connecting a first portion and a second portion of the transversely moveable element, the biasing member having a biasing force;
whereinthe first portion and another portion of the transversely moveable element are movable from a first position, where the first portion and the other portion are aligned with respect to one another, to a second position, where the first portion is not aligned with respect to the other portion, the device being locked to the guidewire in the second position;
the guidewire comprises sections of varying stiffness, including a first section having a stiffness greater than the biasing force of the biasing member and a second section having a stiffness less than the biasing force of the biasing member, andthe device moves from the first position to the second position when the device reaches the second section of the guidewire.
1 Assignment
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Accused Products
Abstract
A device and method for locking onto a guidewire. The device includes an element transversely movable along the guidewire. The element may have a plurality of portions and a biasing member connecting first and second portions of the transversely moveable element such that the first portion and another of the portions are movable from a first position, where the first portion and the other portion are aligned with respect to one another, to a second position, where the first portion is no longer aligned with respect to the other portion, the device being locked to the guidewire in the second position. The device can be used for locking an embolic protection device including a filter to a guidewire that is adapted to be introduced into a vascular system of a patient.
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Citations
26 Claims
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1. A device for locking onto a guidewire, comprising:
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an element transversely movable along the guidewire, the element comprising a plurality of portions; and a biasing member connecting a first portion and a second portion of the transversely moveable element, the biasing member having a biasing force;
whereinthe first portion and another portion of the transversely moveable element are movable from a first position, where the first portion and the other portion are aligned with respect to one another, to a second position, where the first portion is not aligned with respect to the other portion, the device being locked to the guidewire in the second position; the guidewire comprises sections of varying stiffness, including a first section having a stiffness greater than the biasing force of the biasing member and a second section having a stiffness less than the biasing force of the biasing member, and the device moves from the first position to the second position when the device reaches the second section of the guidewire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification