Surgery – Means and methods for collecting body fluids or waste material – Receptacle attached to or inserted within body to receive...
Patent
1997-06-23
1999-10-19
Weiss, John G.
Surgery
Means and methods for collecting body fluids or waste material
Receptacle attached to or inserted within body to receive...
604332, 24 305R, 24327, A61F 544
Patent
active
059680237
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a collecting bag for human body wastes comprising a bag member formed by two oblong plastic film blanks with joined edges, of which one blank is designed with an inlet opening for connection to a body orifice, particularly a stoma, on which blank between its edge sections facing away from said port a narrowed outlet opening is formed which can be closed by means of a closure clip with a central part attached to one film blank and with projecting end sections, which are designed integrally with the central part via folding sections.
From U.S. Pat. Nos. 4,403,991 and 4,465,486, stoma bags of the type described above are known, with which fairly easy emptying and reclosing procedures of a stoma bag are achieved with a view to its reuse, which is particularly advantageous for ileostomy patients and colostomy patients with uncontrolled release of faeces of a more or less fluid consistency. Closure of the bag during use is achieved by folding the narrowed outlet end of the bag, near the opening so which the closure clip is attached, preferably on the outward-facing side, a couple of turns round the closure clip, after which the ends of the closure clip are folded round the folded outlet section.
U.S. Pat. No. 4,988,343 discloses a collecting bag and a closure clip which is enclosed in sheet material in order to keep the clip connected to the bag and secure that the clip is not contaminated by waste material.
Especially when the bag is filled almost to capacity, in which case the film material of the bag walls is subject to a considerable load, these known bags will entail a risk of a less than satisfactory sealing of the closure, for instance as a result of crease formation in the outlet section including the part rolled round the closure clip. If the bag is reused, this risk may increase as a result of the presence of faecal particles in the outlet opening.
Thus, the known bags entail a rather considerable risk of contamination and odour nuisances.
DESCRIPTION OF THE INVENTION
According to the invention, these inconveniences can be avoided by providing the closure clip at least along one of said longitudinal side edges with a relatively soft, resilient edge zone.
The design of the closure clip with such a soft, resilient edge zone along one or, preferably, both the longitudinal side edges means that the clip achieves a springy effect in said edge zones, providing a self-locking effect, while at the same time keeping the film material in the outlet section tight so that crease formation is essentially avoided, by which an improved sealing is achieved.
This springy effect is also an important advantage in connection with reuse of the bags, as it leads to compression of the film material in the outlet section round any remaining faecal particles.
In a preferred embodiment of the collecting bag according to he invention, the closure clip can also be provided with a relatively soft, resilient edge zone round said folding sections. This provides an improved comfort over the known designs described above, as the folding edges of the closure clip projecting from the bag cutlet section will feel relatively soft and thus considerably less discomfortable during use of the bag.
According to a further development the risk of contamination of the closure clip itself with faecal particles in connection with emptying the bag can be further reduced by attaching the closure clip removably to said one film blank at a distance from the mouth of the outlet opening, and by attaching removably to said one film blank, between the closure clip and the opening, a thin bar for rolling up the narrowed part of the bag outlet section. The narrowed outlet section is thus folded up round the thin band, by which procedure the folded-up part is completely surrounded by the closure clip, when the latter is subsequently closed.
The invention also relates to a closure clip for closing a bag by fastening it round its walls near an opening in the bag, which closure clip is designed wit
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Coloplast A/S
Ruhl Dennis
Weiss John G.
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