Bidirectional steerable catheter with deflectable distal tip
First Claim
1. A steerable medical device, comprising:
- a handle havinga first housing, anda second housing slidably engaging and axially displaceable relative to the first housing, the first housing including first and second piston members.
2 Assignments
0 Petitions
Accused Products
Abstract
A bidirectional catheter with a deflectable tip at a distal end includes a handle at a proximal end and a tubular member extending between the tip and the handle. The handle includes a first piston member slidably mounted in a handle base with proximal ends of steering wires secured in the handle. The steering wires extend through the tubular member with respective distal ends thereof secured to circumferentially spaced portions of the distal end tip. Axial displacement of the piston member in a second direction conversely urges deflection of the distal end tip in a second direction by tensioning the other wire relative to the first wire. The piston member can include another piston member slidable in the first piston member with the proximal ends of the steering wires secured in the first mentioned piston member and the handle member, respectively, and with the other piston member supporting a proximal end of the tubular member.
142 Citations
20 Claims
-
1. A steerable medical device, comprising:
a handle having a first housing, and a second housing slidably engaging and axially displaceable relative to the first housing, the first housing including first and second piston members.
-
2. A bi-directional steerable medical device, comprising:
-
an elongate body; a handle including a first handle portion, the first handle portion including a first piston member supporting the elongate body and a second piston member supporting the first piston member, and a second handle portion, the second handle portion slidably engaging and axially displaceable relative to the first handle portion; and first and second steering wires attached to the handle. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A steerable catheter, comprising:
-
an elongate body with a distal end and a proximal end; and a bi-directional steering device attached to the proximal end of the catheter, the steering device including a first handle portion, the first handle portion including a first piston member supporting the elongate body and a second piston member supporting the first piston member, a second handle portion slidably engaging and axially displaceable relative to the first handle portion, and first and second steering wires attached to the steering device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
-
Specification