GB2371487A - Ostomy bags - Google Patents

Ostomy bags Download PDF

Info

Publication number
GB2371487A
GB2371487A GB0023313A GB0023313A GB2371487A GB 2371487 A GB2371487 A GB 2371487A GB 0023313 A GB0023313 A GB 0023313A GB 0023313 A GB0023313 A GB 0023313A GB 2371487 A GB2371487 A GB 2371487A
Authority
GB
United Kingdom
Prior art keywords
bag
ostomy bag
adhesive
vent opening
ostomy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0023313A
Other versions
GB0023313D0 (en
Inventor
Rory James Maxwell Smith
Steven Edward Pooley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Welland Medical Ltd
Original Assignee
Welland Medical Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Welland Medical Ltd filed Critical Welland Medical Ltd
Priority to GB0023313A priority Critical patent/GB2371487A/en
Publication of GB0023313D0 publication Critical patent/GB0023313D0/en
Publication of GB2371487A publication Critical patent/GB2371487A/en
Withdrawn legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/44Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices
    • A61F5/441Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices having venting or deodorant means, e.g. filters ; having antiseptic means, e.g. bacterial barriers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/44Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices
    • A61F5/445Colostomy, ileostomy or urethrostomy devices
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/44Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices
    • A61F2005/4415Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices venting by manual operation

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Description

OSTOMY BAGS
This invention relates to ostomy bags, and in particular to ostomy bags having a flatus gas relief valve.
Background of the Invention Ostomy bags such as ileostomy and colostomy bags for collecting liquid and semi-solid waste from ileostomy and colostomy patients are well known. Such bags typically comprise a waterproof bag provided with a means (such as an adhesive flange) for attaching the bag about the stomal opening of the patient. One of the problems with ostomy bags, particularly ileostomy and colostomy bags, is build up in the bag of flatus gases which tend to inflate the bag thereby causing discomfort and an unsightly appearance. Many colostomy bags therefore are provided with a small opening for venting flatus gases to the external atmosphere.
In order to prevent emission of noxious smells, the vent openings are typically covered by a filter, for example a charcoal filter.
A problem encountered with many filters is that gases can only flow through them at a relatively low rate and this means that the filter cannot accommodate large and sudden increases in flatus gas pressure. Thus, even with a filtered vent opening, the problem of ballooning of colostomy bags still exists.
It is an object of the personal invention to overcome or at least substantially alleviate the aforementioned problems.
Summary of the Invention Accordingly, the invention provides an ostomy bag provided with a vent opening at or towards an upper end thereof and an adhesive closure removably covering the vent opening, the adhesive closure being removable to allow excess
flatus gas to be vented from the bag.
In one embodiment, the adhesive closure is present as an auxiliary means of releasing excess flatus gas, the primary mean for venting gas being defined by an opening covered by a filter. Thus, the ostomy bag can have a first flatus gas vent opening covered by a filter element, and a second flatus gas vent opening closed by the removable adhesive closure.
The removable adhesive closure can be substantially gas-permeable and can, for example, be formed from a similar material to the ostomy bag wall, or a different material. In one alternative embodiment, however, the removable adhesive closure can take the form of a filter element removably affixed to the bag over the vent opening by means of adhesive. In the latter embodiment, flatus gas would normally be filtered before exiting the bag but in the event of excess flatus gas pressure building up in the bag, the filter can be removed to release the excess pressure, and then replaced again. In this embodiment, the removable closure could constitute the only filtered opening in the bag, or it could serve as an auxiliary filtered opening, for example in combination with a non-removable filter.
The ostomy bag is typically formed from a water-impermeable material which also acts as a barrier to flatus gases. Examples of such materials include polyvinyl chloride (PVC), polyvinyl dichloride (PVDC), ethylene vinyl alcohol, and related materials and combinations thereof. In normal use, the flatus filter permits the egress of gas from the bag but filters out malodorous and noxious gases. Such filters, which can contain activated charcoal for the absorption of malodorous and noxious gases, are well known and need not be described in detail here. However, in the event of a sudden build-up of flatus gas within the bag that cannot be vented quickly enough through the filter to prevent ballooning, the bag user can simply retire to a private area such as a WC and release the excess flatus gas by removing the adhesive closure.
Ostomy bags are typically provided with an orifice for receiving waste products from the stomal opening of a patient. The orifice is surrounded by a means for securing and sealing the bag against the body wall of the patient, and such securing means and sealing usually takes the form of a flange, for example an adhesive flange. Typically, one surface of the flange is provided with a layer of bioadhesive, e. g. a hydrocolloid adhesive, which enables the bag to be affixed to the body wall of a patient about the stomal opening.
The flatus gas vent openings are typically located towards the upper end of the bag, and preferably above the adhesive flange. In this way, contact between the openings and the contents of the bag is minimised, thereby preventing leakage and/or fouling of the filter.
The adhesive closure for the flatus gas vent opening can comprise a flexible covering member (for example in the form of a disc) which is removably adhered to the ostomy bag wall about the vent opening. The covering member is preferably flexible and may be provided with a tab to assist removal. Alternatively, the covering member may of stiffer construction and can, for example, comprise a
filter element.
Either the covering member or a region (the bonding region) of the ostomy bag wall surrounding the vent opening, or both, can be provided with a layer of adhesive. The adhesive can take the form of a polymeric (e. g. polyester) tape or film having one side coated with a permanent or high tack adhesive such as a rubber-based adhesive, and the other side covered by a peelable adhesive such as an acrylic adhesive.
In one preferred embodiment of the invention, the covering member is provided with an adhesive layer.
The invention will now be illustrated by way of example with reference to
the non-limiting specific embodiment shown in the accompanying drawings.
Brief description of the Drawings Figure I is schematic view from one side (referred to hereinafter as"the front surface") of an ostomy bag according to one embodiment of the invention in which an adhesive cover is shown detached from the vent opening.
Figure 2 corresponds to Figure I except that the adhesive cover is shown in a closed position.
Detailed Description of the Preferred Embodiment According to one embodiment of the invention as shown in Figures 1 and 2, an ostomy bag 2 is formed from sheets of waterproof, gas impermeable material welded together around their respective peripheral margins 4 in conventional fashion. Suitable materials for use in constructing the bag include polyvinyl chloride (PVC), polyvinyl dichloride (PVDC), ethylene vinyl alcohol, and laminates formed from such materials. Such materials are conventional and need not be discussed in detail here.
The rear (bodyside) surface of the bag is provided with an orifice (represented by dotted line 8) through which waste products from a patient's stomal opening enter the bag. The orifice 8 is surrounded by an adhesive flange 6 (the inner and outer edges of which are indicated by means of dashed lines 10a and 1 Ob) which is of conventional construction.
On the front surface 12 of the bag, and disposed above the level of the adhesive flange lOa/lOb on the rear surface of the bag, are first and second flatus gas vent openings 14,16. The flatus gas vent opening 14 is covered by flatus filter 18 of conventional type which in this embodiment is retained in a circular pocket (not shown) bonded to the inner surface of the bag wall and conveniently takes the form of a circle of carbon cloth. The inner surface of the pocket (not shown) is perforated to allow gas to pass from the interior of the bag through the filter 18 and
out through opening 14. Gas vent opening 16 is surrounded by a circular region 26 which may simply be a continuation of the wall 12 of the bag, or may be a circular weld region formed by applying a welding tool to a comfort layer (not shown) overlaying the wall 12 of the bag. When a comfort layer is present, this is typically formed from a non-woven material which is not gas-impermeable and is a poor substrate for an adhesive bond. By applying a welding tool to the comfort layer, not only is the comfort layer welded to the underlying wall 12 but also the rough irregular surface of the comfort layer is flattened to provide a smooth substrate for an adhesive bond.
Connected to the bag via connection piece 20 is a closure member 22 in the form of a disc formed from the same material as the bag wall. Connecting piece 20 is sandwiched between the front and rear sheets of the ostomy bag and is secured in place by welding along peripheral welding line 4. The disc 22 is provided with a layer 24 of double sided adhesive that enables the disc to be releasably bonded to the bonding region 26 surrounding the opening 16. A tab 28 provides a means of manipulating the closure member 22.
In Figure 1 the adhesive closure member 22 is shown detached from the bonding region 26 surrounding the opening 16, whereas in Figure 2 the adhesive closure member 22 is shown in a closed figuration.
In use, flatus gases will normally pass out through the filtered opening 14 thereby preventing release of unpleasant odours into the atmosphere. In the event in a sudden increase in flatus gas pressure, the patient can simply retreat to the nearest bathroom, and release the adhesive cover 22 to deflate the bag. Thus, the bag of the invention provides a means of rapidly releasing excessive flatus gas without the need for disengaging the ostomy bag from the stomal area.
The ostomy bag illustrated in the drawings is a non-drainable bag, of a type typically used for colostomy patients. It will be appreciated however that the bag
could equally be of the draining variety, It will be readily apparent that numerous modifications and alterations can be made to the ostomy bag shown in the accompanying drawings without departing from the principals underlying this invention, and all such modifications and alterations are intended to be embraced by this application.

Claims (7)

1. An ostomy bag provided with a vent opening at or towards an upper end thereof and an adhesive closure removably covering the vent opening, the adhesive closure being removable to allow excess flatus gas to be vented from the bag.
2. An ostomy bag according to claim 1 wherein the adhesive closure is present as an auxiliary means of releasing excess flatus gas, a primary means for venting gas being provided by an opening covered by a filter.
3. An ostomy bag according to claim 1 or claim 2 wherein the said vent opening is located towards the upper end of the bag, and above an orifice for receiving stomal waste.
4. An ostomy bag according to any one of the preceding claims wherein the adhesive closure comprises a flexible covering member (for example in the form of a disc) which is removably adhered to the ostomy bag wall about the vent opening.
5. An ostomy bag according to claim 4 wherein the flexible covering member is provided with a tab to assist removal.
6. An ostomy bag according to claim 1 wherein the adhesive closure comprises a covering member which is removably adhered to the ostomy bag wall about the vent opening, the covering member comprising a filter element.
7. An ostomy bag substantially as described herein with reference to the accompanying drawings.
GB0023313A 2000-09-22 2000-09-22 Ostomy bags Withdrawn GB2371487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0023313A GB2371487A (en) 2000-09-22 2000-09-22 Ostomy bags

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0023313A GB2371487A (en) 2000-09-22 2000-09-22 Ostomy bags

Publications (2)

Publication Number Publication Date
GB0023313D0 GB0023313D0 (en) 2000-11-08
GB2371487A true GB2371487A (en) 2002-07-31

Family

ID=9899967

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0023313A Withdrawn GB2371487A (en) 2000-09-22 2000-09-22 Ostomy bags

Country Status (1)

Country Link
GB (1) GB2371487A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003065945A1 (en) * 2002-02-05 2003-08-14 Coloplast A/S An ostomy appliance
WO2012062322A1 (en) * 2010-11-08 2012-05-18 Coloplast A/S Ostomy bag with intermediate filter element
WO2012095637A1 (en) * 2011-01-14 2012-07-19 Welland Medical Limited Improvements in ostomy bags
CN102697591A (en) * 2012-06-21 2012-10-03 黄静 Easy-to-wash movable stoma bag
WO2014076456A1 (en) * 2012-11-16 2014-05-22 Salts Healthcare Limited Ostomy appliance

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490145A (en) * 1983-06-27 1984-12-25 E. R. Squibb & Sons, Inc. Ostomy pouch with deodorizing filter
US4723951A (en) * 1985-07-15 1988-02-09 Craig Medical Products Ltd. Gas filter arrangement for ostomy or ileostomy bags
US4938750A (en) * 1989-06-16 1990-07-03 E. R. Squibb & Sons, Inc. Pouch with selective multiple deodorizing filters
US5085652A (en) * 1989-06-16 1992-02-04 E. R. Squibb & Sons Pouch with mounting member for removable adhesive filter
EP0535801A1 (en) * 1991-09-06 1993-04-07 Smiths Industries Public Limited Company Medico-surgical collection bags
EP0564106A1 (en) * 1992-03-28 1993-10-06 Smiths Industries Public Limited Company Medico-surgical collection bags
EP0985390A1 (en) * 1998-08-13 2000-03-15 Bristol-Myers Squibb Company Ostomy pouches

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490145A (en) * 1983-06-27 1984-12-25 E. R. Squibb & Sons, Inc. Ostomy pouch with deodorizing filter
US4723951A (en) * 1985-07-15 1988-02-09 Craig Medical Products Ltd. Gas filter arrangement for ostomy or ileostomy bags
US4938750A (en) * 1989-06-16 1990-07-03 E. R. Squibb & Sons, Inc. Pouch with selective multiple deodorizing filters
US5085652A (en) * 1989-06-16 1992-02-04 E. R. Squibb & Sons Pouch with mounting member for removable adhesive filter
EP0535801A1 (en) * 1991-09-06 1993-04-07 Smiths Industries Public Limited Company Medico-surgical collection bags
EP0564106A1 (en) * 1992-03-28 1993-10-06 Smiths Industries Public Limited Company Medico-surgical collection bags
EP0985390A1 (en) * 1998-08-13 2000-03-15 Bristol-Myers Squibb Company Ostomy pouches

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003065945A1 (en) * 2002-02-05 2003-08-14 Coloplast A/S An ostomy appliance
DK175563B1 (en) * 2002-02-05 2004-12-06 Coloplast As An ostomy appliance
US7344521B2 (en) 2002-02-05 2008-03-18 Coloplast A/S Ostomy appliance with a filter outlet opening covered by a flap
JP2009148621A (en) * 2002-02-05 2009-07-09 Coloplast As Ostomy appliance
US9101483B2 (en) 2010-11-08 2015-08-11 Coloplast A/S Ostomy bag with intermediate filter element
WO2012062322A1 (en) * 2010-11-08 2012-05-18 Coloplast A/S Ostomy bag with intermediate filter element
WO2012095637A1 (en) * 2011-01-14 2012-07-19 Welland Medical Limited Improvements in ostomy bags
US20140046283A1 (en) * 2011-01-14 2014-02-13 Welland Medical Limited Ostomy bags
AU2012206485B2 (en) * 2011-01-14 2016-07-28 Welland Medical Limited Improvements in ostomy bags
US9788991B2 (en) * 2011-01-14 2017-10-17 Paul Bird Ostomy bags
CN102697591A (en) * 2012-06-21 2012-10-03 黄静 Easy-to-wash movable stoma bag
WO2014076456A1 (en) * 2012-11-16 2014-05-22 Salts Healthcare Limited Ostomy appliance
GB2508003B (en) * 2012-11-16 2018-01-10 Salts Healthcare Ltd Ostomy appliance

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Publication number Publication date
GB0023313D0 (en) 2000-11-08

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)