Surgery – Means and methods for collecting body fluids or waste material – Receptacle attached to or inserted within body to receive...
Patent
1997-06-23
1999-09-14
Stright, Ronald
Surgery
Means and methods for collecting body fluids or waste material
Receptacle attached to or inserted within body to receive...
604334, 604338, 604339, A61F 544
Patent
active
059515325
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a collecting bag for human body wastes comprising a collecting bag in the shape of a bag member formed by two largely oblong plastic film blanks with joined edges and with an inlet opening surrounded by connecting elements for connection to a body orifice, particularly a stoma, and a closeable outlet opening placed at a distance from the inlet opening.
From GB patent publication No. 1447314 a stoma bag is known, which is intended especially for newly operated patients confined to bed, and which is designed with an outlet opening which through a connecting tube, can be connected to a collecting tank. The coupling between the bag outlet opening and the tube end connected to this opening is for this purpose designed as a rather simple rib or snap fastening interlock, with neither adequate protection against contamination nor satisfactory sealing against the emission of odour.
SUMMARY OF THE INVENTION
The object of the present invention is to provide both a new outlet coupling design and an entirely new concept for coupling with a collecting bag of said type with a bag extension, which can be designed as a coupling tube, but which can also have other designs, and where the collecting bag can also be used on its own without coupling with the bag extension and with a fully adequate sealing against contamination and emission of odour.
For achieving this according to a first aspect of the convention, a collecting bag of said type is characterized in that the outlet opening is made in an end section of one plastic film blank and surrounded by a first coupling ring with an outward-facing engagement flange providing a removable sealing coupling with a second coupling ring with a corresponding inward-facing engagement part, and that on the inside of the first coupling ring a closing membrane is placed with an annular coupling element for a sealing, but releasable coupling with an inward-facing engagement element on the first coupling ring, which closing membrane with coupling element is firmly connected to the other plastic film blank, on the outside of which plastic film blank opposite the coupling element a catcher flap is mounted for release of the coupling between the coupling specimen of the closing membrane and the first coupling ring.
The placing of the outlet opening in the bag and the design of the surrounding first coupling ring provide a safe operation in connection with emptying the bag through the outlet opening, as the passage through the outlet opening for the bag contents is opened entirely by release of the closing membrane. As the second coupling ring can be mounted on the outside of the same plastic film blank of the bag as the first coupling ring, the bag end section can be folded up during use and secured by coupling the first and second sealing rings.
According to another aspect of the invention, a collecting bag system comprising a collecting bag of said type can also include a bag extension, in which the second coupling ring is mounted. After the decoupling of such bag extension, the coupling of the closing membrane with the coupling ring is relatively easy to reestablish after the contents, eg, faeces and air, of the end section of the collecting bag have been pressed into the extension. Coupling and change of a bag extension can thus in all essentials take place without contamination and odour nuisances.
The collecting bag system according to the invention is particularly well suited for newly operated patients confined to bed, for use in nursing homes and for ileostomy patients with uncontrolled release of faeces of a relatively fluid consistency.
To facilitate the use of the collecting bag without the bag extension, it is possible when using the collecting bag in such a system, according to a suitable embodiment of the invention, to attach an exterior coupling ring to said first plastic film blank above said end section for securing the first coupling ring with the end section folded up.
The collecting bag system according to
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Cho David J.
Coloplast A/S
Stright Ronald
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