Guidewire with Adjustable Core
First Claim
Patent Images
1. A guidewire comprising:
- a proximal portion including a proximal hollow tube havinn a first longitudinal axis;
a distal portion having a second longitudinal axis and including a coil mounted around a distal tube, said coil coupled to said proximal hollow tube, wherein said distal tube is made of an elastomeric material; and
a core wire disposed within said proximal hollow tube, wherein said core wire is movable between a distal position wherein a distal end of said core wire is disposed a first distance from a distal end of said distal tube and a proximal position wherein the distal end of said core wire is disposed a second distance from the distal end of said distal tube, wherein said second distance is greater than said first distance,wherein the first and second longitudinal axes arc coaxial when said core wire is disposed in the distal position and when said core wire is disposed in the proximal position.
2 Assignments
0 Petitions
Accused Products
Abstract
A movable-core guidewire including a proximal portion and a distal portion. The proximal portion includes a proximal hollow tube. The distal portion includes a coil coupled to the proximal hollow tube and an elastomeric distal tube disposed within the coil. A core wire is disposed within the hypotube. The core wire is movable between a distal position wherein a portion of the core wire is disposed in the distal tube and a proximal portion wherein the core wire is removed from the distal tube. A method is also disclosed for advancing the guidewire to the treatment site.
20 Citations
30 Claims
-
1. A guidewire comprising:
-
a proximal portion including a proximal hollow tube havinn a first longitudinal axis; a distal portion having a second longitudinal axis and including a coil mounted around a distal tube, said coil coupled to said proximal hollow tube, wherein said distal tube is made of an elastomeric material; and a core wire disposed within said proximal hollow tube, wherein said core wire is movable between a distal position wherein a distal end of said core wire is disposed a first distance from a distal end of said distal tube and a proximal position wherein the distal end of said core wire is disposed a second distance from the distal end of said distal tube, wherein said second distance is greater than said first distance, wherein the first and second longitudinal axes arc coaxial when said core wire is disposed in the distal position and when said core wire is disposed in the proximal position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A guidewire comprising:
-
a proximal portion including a proximal hollow tube having a first longitudinal axis; a distal portion including a coil disposed around a distal tube, said coil being coupled to said proximal hollow tube and having a second longitudinal axis, wherein said distal tube is made of an elastomeric material and has a third longitudinal axis; and a core wire disposed within said proximal hollow tube, wherein said core wire has a fourth longitudinal axis and is movable between a proximal position and a distal position, wherein said distal portion of the guidewire is more flexible when said core wire is in the proximal position than when said core wire is in the distal position, wherein said first, second, third, and fourth longitudinal axes are coaxial when said core wire is in the distal position. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
-
-
14-22. -22. (canceled)
Specification