System for the drainage of body cavities

Details System for the drainage of body cavities System for the drainage of body cavities

1989-09-06

1990-10-16

Yasko, John D.

Surgery

Devices transferring fluids from within one area of body to...

604170, 604283, A61M 2500

Patent

active

049631292

ABSTRACT:
Prior-art systems for drainage of body cavities, in particular renal cavity systems, have usually comprised of a flexible drainage tube (1) with at least one crooked end (11, 13), a tubular device, called a pusher (2), serving to push the drainage tube (1) into a body cavity, a distal end of which is connected in a separable way with a proximal end of the drainage tube (1), and a guide wire (3) passing through the drainage tube (1) and the pusher (2). Up to now, the separable connection consisted of either a predetermined break point or a wedge connection. Both solutions have been unsatisfactory.
According to this invention, ends of a drainage tube (1) and a pusher (2), which are connected with each other, have parts (41, 42) of a lock (4) complementary to each other, which define sections (45, 46) overlapping each other and featuring facing sections fitted to each other which transmit axial traction forces and a torque. Sections (45, 46) are held in mesh by the guide wire (3) passing through them. Thereby, each part (41, 42) of the lock (4) has, at a spaced distance from its end, a transverse slot (43, 44), with the section (45, 46) defining or delimiting the transverse slot (43, 44) presenting on its periphery a flattening (47, 48) parallel to a slot base.

REFERENCES:
patent: 4713049 (1987-12-01), Carter
patent: 4820262 (1989-04-01), Finney
patent: 4834709 (1989-05-01), Banning et al.

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