Surgery – Means and methods for collecting body fluids or waste material – Receptacle attached to or inserted within body to receive...
Patent
1996-12-27
1998-10-27
Clarke, Robert A.
Surgery
Means and methods for collecting body fluids or waste material
Receptacle attached to or inserted within body to receive...
604327, A61F 544
Patent
active
058272496
DESCRIPTION:
BRIEF SUMMARY
This case was filed under 35 U.S.C. .sctn. 371 claiming priority based on PCT/DK95/00234 filed Jun. 12, 1995.
BACKGROUND OF THE INVENTION
The invention relates to an external catheter for remedying male urinary incontinence, comprising a sheath essentially formed as a shaft and a constricted drainage tube part integrated therewith for connection with a hose connector which is connected to a draining hose.
An external catheter of this type is known eg. from EP patent no. 0 528 965. In this design, the catheter is of a thermoplastic material where, as described in said patent, the drainige tube part may be produced by injection moulding whereas the thin-walled sheath formed as a shaft is produced by a combined pull extrusion and blow moulding process made in connection with this injection moulding. Thereby is obtained among other an advantageous degree of freedom for the design of the drainage tube part, eg. for its adaptation to specially designed hose connectors or for optimalization to special applications.
In the design of external catheters or uridoms, great importance is generally attached to obtaining a good user comfort in connection with mounting, including especially the placing of the catheter sheath on the penis which must often be carried out by the nursing staff, in particular in cases with older or handicapped patients having reduced finger motor function.
However, it has been neglected to some extent that the mounting also requires connection of the drainage tube part to the drainage hose connected with a collection bag. This connection is generally made by means of a hose connector designed as a short tube section with end portions designed for sealed connection with the drainage hose and the drainage tube part of the catheter, respectively.
In order to obtain the required sealing in the connection between the drainage tube part and special designs of hose connectors, it has in the above EP patent been proposed to design the drainige tube part with an inward or outward projecting collar member at its orifice. However, this has not to any appreciable extent improved the user comfort just as these special designs are not appropriate for connection to standard hose connectors which are typically formed with a conventional corrugated end portion for connection of the drainage tube part.
Therefore, the object of the invention is to procure a new design of the drainage tube part of the catheter with a considerably improved user friendliness when mounting.
DESCRIPTION OF THE INVENTION
In a catheter of the above type, this is according to invention achieved in the way that an end portion of the drainage tube part at the orifice thereof is divided into at least two sections, said sections forming partly cylindrical sections of the wall of the drainage tube part and being separated by means of slits mainly parallel to the axis of the drainage tube part.
The said sections forming a number of separate flaps with a length which is somewhat shorter than the corresponding end portion of the hose connector, the mounting is facilitated to a considerable extent because these flaps may be pulled in over the end portion of the hose connector ore at a time whereby lesser force is required for the mounting compared to the usually executed manipulation where the drainage tube part is pushed in over the end portion of the hose connector.
Even users with reduced finger motor function may thus as a rule perform the mounting by themselves. This is further facilitated in the way that said sections form partly cylindrical sections of the wall of the drainage tube part and are separated by means of slits mainly parallel to the axis of the drainage tube part.
As another possibility according to a further development of the invention, the said sections of the drainage tube part may, in supply condition, be rolled back over it. Such a rolled-back drainage tube part may be drawn a small distance in over the end portion of the hose connector whereupon the separate wall sections or flaps are pulled individually over the
REFERENCES:
patent: 3835857 (1974-09-01), Rogers, III et al.
patent: 4280498 (1981-07-01), Jensen
Clarke Robert A.
Coloplast A/S
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