EP0790066B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Steerable catheter
Assignee: Individual
•
Filing: 1992-02-17
•
Granted: 2000-04-12
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Expires: 2012-02-17
Abstract
Abstract The disclosure relates to a catheter (21) having a high torque capability adapted to be inserted into and through a lumen of a blood vessel comprising a flexible elongate tubular shaft (22) having proximal and distal extremities (23,24). The shaft (22) is comprised of a torque tube (31) extending substantially the entire length of the shaft (22). The torque tube (31) has a cylindrical wall with at least one flexible portion (31a,31b,31c). A handle (91a) is secured to the proximal extremity (23) and carries steering lever means (96), which includes a circular cap (101) overlying a side of the handle (91a). Means (126) to form a seal is provided between the cap (101) and handle (91a). <IMAGE>
Inventors
- 👤 Ingemar H. Lundquist
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 19:15
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0133; A61M25/0138; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61M25/0043; A61M25/005; A61M25/0051; A61M25/0053; A61M25/0136; A61M25/0147; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/06; A61B2018/00571; A61B2018/00577; A61B2018/0091; A61B2018/00916; A61M2025/015; A61M2025/0161
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
279 words
A steerable catheter (21) comprising an
elongate flexible body (22) having a proximal
extremity (23), a distal extremity (24) and a
longitudinal axis, the distal extremity of the body
being formed to permit bending of the distal extremity
with respect to the longitudinal axis, a handle (91a)
secured to the proximal extremity and being adapted to
be grasped by the human hand, the handle including a
housing (91) having first and second sides (92,93) each
having a surface, first and second pull strings
(76,77) extending through the body from the handle to
the distal extremity and secured to the distal
extremity, a shaft (111) carried by the housing,
steering lever means (96) carried by the housing on
the first side and being accessible from the exterior
of the housing and being adapted to be engaged by a
finger of the hand for movement between the first and
second positions about the shaft, said steering lever
means having means (101) extending through the first
side of the housing and including means (103) secured
to the first and second pull strings for causing
tensioning of said first and second pull strings one
at a time by movement of the steering lever between
said first and second positions characterized in that
said steering lever means includes a cap (101)
rotatable about an axis of rotation on the housing
having a circular surface overlying the surface of the
first side of the housing and an o-ring (126) disposed
between the circular surface of the cap and the
surface of the first side of the housing for forming
seals and establishing a liquid-tight seal between the
cap and the first side of the housing.
Claim 2
Dependent Claim
162 words
A steerable catheter as in claim 1, further
including locking lever means (97) carried by the
housing on the second side of the housing and
accessible from the exterior of the housing and being
adapted to be engaged by a finger of the hand for
movement with respect to the shaft, means (122)
operable by the locking lever means and carried by the
housing for frictionally retaining the steering lever
means in a predetermined position upon movement of the
locking lever means, said locking lever means
including means extending through the second side of
the housing characterised in that said locking lever
means also includes a circular cap (112) overlying the
second side of the housing and an O-ring (127) disposed
between the circular cap of the locking lever means
and the second side of the housing for forming a seal
and establishing a liquid-tight seal between the
circular cap of the locking lever means and the second
side of the housing.
Claim 3
Dependent Claim
58 words
A steerable catheter as in claim 1 further
characterised in that at least one electrode (28 or
29) is carried by the distal extremity of the flexible
elongate body and electrical conductor means (63,64)
carried by the flexible elongate body coupled to the
at least one electrode and extending to the proximal
extremity of the flexible elongate body.
Claim 4
Dependent Claim
52 words
A steerable catheter as in claim 4, further
characterised in that said flexible elongate body
includes a metal torque tube (31) having plurality of
longitudinally spaced-apart circumferentially
extending slots (41) at the distal extremity of the
flexible elongate body to provide additional
flexibility for the distal extremity of the flexible
elongate body.
References Cited (Backward Citations)
No citation records indexed.
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