Indwelling urinary catheter with base drainage port

Details Indwelling urinary catheter with base drainage port Indwelling urinary catheter with base drainage port

2005-01-04

2005-01-04

Mendez, Manuel (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S101030, C604S328000

Reexamination Certificate

active

06837868

ABSTRACT:
An indwelling urinary catheter comprises a two-ply (or equivalent) air-inflatable anchoring balloon means in which an outer ply or skin thickness thereof, is not bonded to the inner ply over one or more small areal segments each measured at the intersection of the two plys radially located from the axis of symmetry of a central catheter body. Instead, when inflated, each areal segment expands mostly in a sidewise looking direction over a minimum radial arc relative to a central catheter body, to form one or more elongated lobes that are larger than and hence stabilize the catheter body relative to the entry port of the user's bladder but leaving rigid collar regions located between adjacent segments so as to not interfere with the formation of large drainage ports therethrough. After deployment and inflation, these one or more segments are seen to provide corresponding one or more corresponding inflated lobes those size is much greater than that of the entry port of the user's bladder to prevent the stabilize of the catheter therefrom during use. Meanwhile, since each of the rigid collar regions is of greater wall thickness than that provided the outer ply of the segments, the location of the drainage ports provided therein, relative to the entry port of the user's bladder, can be dramatically changed, viz., the latter can also be downwardly re-located to be more closely adjacent to the entry port of the user's bladder, than heretofore. Result: greater drainage efficiency wherein little or no residue urine stowage, occurs in the user's bladder.

REFERENCES:
patent: 4351342 (1982-09-01), Wiita et al.
patent: 4813935 (1989-03-01), Haber et al.

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