Patent EP0790066A2 successfully refreshed from Google Patents.
EP0790066A2
Expired / Lapsed
EP
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Steerable catheter
Assignee: Individual
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Filing: 1992-02-17
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Granted: —
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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).
Inventors
- 👤 Ingemar H. Lundquist
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 21:53
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: 5
Claim 1
Independent Claim
254 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 (2,93), 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 (111) 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 characterised in that said steering lever means includes a circular cap (101) overlying the first side of the housing and means (126) disposed between the circular cap and 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
161 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 means (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
43 words
A steerable catheter as in claim 1 further characterised in that said means forming a seal disposed between the cap and the first side and the means forming a seal disposed between the cap on the second side each includes an o-ring (126,127).
Claim 4
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 5
Dependent Claim
52 words
A steerable catheter as in claim 4, further characterised in that said flexible elongate body includes a metal torque (31) having a 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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