Hollow lumen cable apparatus

Details Hollow lumen cable apparatus Hollow lumen cable apparatus

1990-07-20

1992-11-24

Yasko, John D.

Surgery

Truss

Pad

464 58, 604282, 138130, 745025, 267168, A61B 500

Patent

active

051654210

ABSTRACT:
A hollow lumen cable is formed by helically winding inner and outer coils with the helices of each coil being in an abutting relationship and the outer coil inner peripheral diameter being less than the outer peripheral diameter of the inner coil. Preferably, each coil is multifilar. After the coils are wound, an unwinding force is applied to the outer coil and the inner coil is inserted into the outer coil to have its winding inclined opposite to that of the outer coil; and thence, the outer coil is allowed to contract to form an interference fit with the inner coil. The cable may be incorporated as part of a medical apparatus. For example, the cable distal end is connected to an implantable pump or other rotatable medical apparatus and the proximal end to a powered prime mover. A manually operated control member is attached to the cable proximal end portion, and the distal end to a medical sub-assembly such as a forceps or cutter; or as a part of a guide wire, or as part of a catheter to impart torque control. The cable is bendable about the tight radii and has a high torque transfer resolution while having a small cable outer diameter, a relatively long life, and has a hollow lumen in which there is no structure or through which fluid, wires or medical devices may pass.

REFERENCES:
patent: 267343 (1882-11-01), Harrison
patent: 492266 (1883-02-01), Browne
patent: 1228439 (1917-06-01), Hotchkiss
patent: 1429146 (1922-10-01), Karge
patent: 1808193 (1931-06-01), Webb
patent: 2048471 (1936-07-01), Sanford
patent: 2955592 (1960-10-01), MacLean
patent: 3552384 (1971-01-01), Pierie et al.

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