Bidirectional steerable catheter with deflectable distal tip

Details Bidirectional steerable catheter with deflectable distal tip Bidirectional steerable catheter with deflectable distal tip

1995-05-22

1997-08-12

Buiz, Michael Powell

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604264, A61M 3700

Patent

active

056560303

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.

REFERENCES:
patent: 5037391 (1991-08-01), Hammerslag et al.
patent: 5108368 (1992-04-01), Hammerslag et al.
patent: 5190050 (1993-03-01), Nitzsche
patent: 5228441 (1993-07-01), Lundquist
patent: 5242441 (1993-09-01), Avitall
patent: 5275151 (1994-01-01), Shockey et al.
patent: 5322064 (1994-06-01), Lundquist
patent: 5327906 (1994-07-01), Fideler
patent: 5330466 (1994-07-01), Imran
patent: 5364352 (1994-11-01), Cimino et al.

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