Coaxial bi-directional catheter
First Claim
1. A bi-directional deflectable catheter comprising:
- an outer tubular member having a proximal end, a distal end and a first lumen;
an inner tubular member having a proximal end, a distal end and a second lumen extending to the distal end, the inner member having a wall surrounding the second lumen, the inner member positioned within the first lumen of the outer member, the inner member and outer member being relatively movable; and
an elongated column member having a first end and a second end, the column member positioned external of the wall of the inner member and radially of the second lumen so the elongated column member is outside an outer diameter of the second lumen, the column member fixed at a first end to the distal end of the inner member and fixed at a second end to the distal end of the outer member, wherein the elongated column member is configured to buckle in a region between the first end and the second end upon relative movement of one or both of the inner and outer members but is restrained from buckling and therefore restrained from axial compression to effect lateral deflection of a distal tip portion of the catheter, the distal tip portion of the catheter being deflectable in first and second opposing directions from a longitudinal axis of the catheter.
2 Assignments
0 Petitions
Accused Products
Abstract
A deflectable catheter including an outer member having a proximal portion and a distal portion, an elongated column member extending distally from the outer member and an inner member positioned coaxial with the outer member and attached to the column member. The inner member extends distally of the outer member and has a distal tip portion. A reinforcement member is positioned over the column member to restrict axial movement of the column member such that when one of the inner member or outer member is moved with respect to the other, axial compression of the column member is restricted by the reinforcement member causing the distal tip portion of the inner member to deflect laterally.
261 Citations
20 Claims
-
1. A bi-directional deflectable catheter comprising:
-
an outer tubular member having a proximal end, a distal end and a first lumen; an inner tubular member having a proximal end, a distal end and a second lumen extending to the distal end, the inner member having a wall surrounding the second lumen, the inner member positioned within the first lumen of the outer member, the inner member and outer member being relatively movable; and an elongated column member having a first end and a second end, the column member positioned external of the wall of the inner member and radially of the second lumen so the elongated column member is outside an outer diameter of the second lumen, the column member fixed at a first end to the distal end of the inner member and fixed at a second end to the distal end of the outer member, wherein the elongated column member is configured to buckle in a region between the first end and the second end upon relative movement of one or both of the inner and outer members but is restrained from buckling and therefore restrained from axial compression to effect lateral deflection of a distal tip portion of the catheter, the distal tip portion of the catheter being deflectable in first and second opposing directions from a longitudinal axis of the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A bi-directional deflectable catheter comprising:
-
an outer tubular member having a proximal end, a distal end and a first lumen; an inner tubular member having a proximal end, a distal end and a second lumen, the inner member positioned within the first lumen of the outer member, the inner member and outer member being relatively movable; an elongated column member extending distally along a length of a distal region of the inner tubular member; and a movement restriction member positioned over the column member to restrain buckling and axial compression of the column member; the column member configured to buckle and having a proximal end and a distal end, the column member being attached at a first end to the distal end of the inner member and attached at a second end to the distal end of the outer member, wherein a distal opening in the inner tubular member fluidly communicating with the second lumen is distal of the second end of the column member attached to the outer member, wherein upon relative movement of one or both of the inner and outer members the column member is restricted from buckling and therefore axial compression is restricted to effect lateral deflection of a distal tip portion of the catheter. - View Dependent Claims (12, 13, 14)
-
-
15. A bi-directional deflectable catheter comprising:
-
an outer tubular member having a proximal end, a distal end and a first lumen; an inner tubular member having a proximal end and a distal end, the inner member positioned within the first lumen of the outer member, the inner member and outer member being relatively movable; an elongated column member having a first end and a second end, the column member attached at the first end to the distal end of the inner member and attached at the second end to the distal end of the outer member; a movement restriction member positioned over the column member; and a marker band at the distal end of the inner member adjacent a region of attachment of the first end of the column member to the inner member, the inner member and the outer member joined together with the marker band and the column member extending into the marker band, a distal tip portion of the catheter is deflectable in first and second opposing directions from a longitudinal axis of the catheter. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification