WO2010122314A1 - Sac de stomie jetable - Google Patents

Sac de stomie jetable Download PDF

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Publication number
WO2010122314A1
WO2010122314A1 PCT/GB2010/000826 GB2010000826W WO2010122314A1 WO 2010122314 A1 WO2010122314 A1 WO 2010122314A1 GB 2010000826 W GB2010000826 W GB 2010000826W WO 2010122314 A1 WO2010122314 A1 WO 2010122314A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
ostomy bag
bag according
pouch
layer
Prior art date
Application number
PCT/GB2010/000826
Other languages
English (en)
Inventor
Rory Smith
Original Assignee
Welland Medical Limited
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
Priority claimed from GB0907051.7A external-priority patent/GB2469686B/en
Priority claimed from GB0915266.1A external-priority patent/GB2473206B/en
Application filed by Welland Medical Limited filed Critical Welland Medical Limited
Priority to JP2012527374A priority Critical patent/JP5784019B2/ja
Priority to EP10719767.5A priority patent/EP2473142B1/fr
Priority to CN201080038974.9A priority patent/CN102665618B/zh
Priority to US13/393,606 priority patent/US9539137B2/en
Priority to DK10719767.5T priority patent/DK2473142T3/en
Priority to AU2010240691A priority patent/AU2010240691B2/en
Priority to BR112012008101A priority patent/BR112012008101B8/pt
Publication of WO2010122314A1 publication Critical patent/WO2010122314A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices
    • A61F5/445—Colostomy, ileostomy or urethrostomy devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices
    • A61F2005/4402—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices disposable

Definitions

  • the present invention relates to ostomy bags and more specifically to ostomy bags which can be hygienically flushed down a toilet.
  • Ostomy bags for receiving bodily waste are well known.
  • a major problem with existing bags is that it is difficult to dispose of a used bag in a convenient and hygienic manner. For example, some existing bags require a user to cut an edge of the bag to deposit the bag's content down a toilet, whilst the soiled bag is disposed of separately. The soiled bag needs to be wrapped and placed in a bin or incinerated. The disposal of a bag in this way is unhygienic, unpleasant and inconvenient for a user.
  • the Applicant's earlier European patents EP0703762 and EP0768848 sought to overcome some of the problems described above by providing a removable inner bag provided within an outer bag.
  • the inner bag is sufficiently water-impermeable to prevent leakage but, when disposed of, would gradually dissolve to be flushed down a toilet after use.
  • a material known to be suitable for this is a polymeric film formed from polyvinyl alcohol/polyvinyl acetate (PVOH). It is possible to obtain grades of PVOH which remain insoluble for a period of several days (i.e. the maximum time over which an ostomy bag would be worn) but have the advantage that they are water-softenable and over a more prolonged period they are biodegradable.
  • the inner flushable bag is secured to the durable outer protective bag by a peelable connection.
  • the peelable connection is torn away and the inner bag has to be removed from the outer bag to be flushed down the toilet.
  • the outer bag would not be soiled by the bodily waste but has to be disposed of separately, for example, with other household refuse.
  • the removal of the inner bag still remains an inconvenience for a user and may be impractical for patients unable to carry out such tasks.
  • the outer bag which is not biodegradable, adds to landfill.
  • a peelable and flushable ostomy appliance is also disclosed in EP04795863.
  • a peelable sealing seam is broken such that the outer pouch walls are peeled away from the inner pouch.
  • the inner pouch and its contents can be deposited in the bowl of a toilet and flushed away.
  • the outer pouch walls need to be folded together and disposed of in some other manner, for instance in a pocket or a refuse container.
  • the removal of the inner bag again is an inconvenience for a user and may be impractical for patients unable to carry out such tasks, such as the elderly or disabled.
  • the outer bag which is not biodegradable, adds to landfill.
  • the present invention sets out to provide an improved ostomy bag, which is convenient to use and overcomes the problems identified above by being suitable to be flushed down a toilet in its entirety.
  • the invention provides an ostomy bag for receiving bodily waste comprising; an outer protective pouch comprising a laminate material with an outer layer of water-impermeable material and an inner layer of water-soluble material; an inner waste-collecting pouch enclosed within the outer protective pouch comprising a laminate material with an outer layer of water-soluble material and an inner layer of water-impermeable material, and means defining an orifice to enable bodily waste to enter the inner pouch; wherein the outer protective pouch is removeably sealed and both the outer protective pouch and the inner waste-collecting pouch are of a structure which is weakened upon immersion in a toilet bowl to become less buoyant such that the bag can be flushed away.
  • the outer pouch By removeably sealing the outer pouch, the outer pouch can be opened following use, without separating the inner and outer pouches. This allows water to contact the outer protective pouch's inner layer of water-soluble material and also contact the inner waste-collecting pouch's outer layer of water soluble material. When the bag is immersed in a toilet bowl, water enters the gap between the inner and outer pouches to break down the bag and allow it to be fully flushed away. A user is not required to remove the inner pouch from the outer pouch and can dispose of the entire bag.
  • reference to the inner layer refers to the layer closest to the waste collected and the outer layer refers to the layer furthest from the waste collected.
  • the inner and outer pouches are integrally formed as a multi-layered bag comprising: an outer laminate sheet with an outermost layer of water-impermeable material and an inner layer of water-soluble material; an inner laminate sheet with an outer layer of water-soluble material and an innermost layer of water-impermeable material.
  • An ostomy bag formed of a single sheet of laminate material improves the efficiency of manufacture of the bag.
  • the or each layer of the inner waste-collecting pouch is odour impermeable.
  • the water-soluble material comprises polyvinyl acetate/ polyvinyl alcohol.
  • the water-soluble material is formed from biodegradable fibres.
  • the water-soluble material is adapted to be hydrophobic.
  • An outermost layer of hydrophobic material allows a user to bathe or shower without the bag absorbing water and becoming uncomfortable to wear.
  • a hydrophobic outer layer allows the bag to be dried and enhances the comfort of the bag when worn by a user.
  • the water-impermeable material comprises ethylene vinyl alcohol, or silicon or Teflon, or a starch-based film, or a film that is physically modified such that its surface is hydrophobic.
  • the water-impermeable material is plasma treated or coated with a hydrophobic layer.
  • the water- impermeable material is adapted to be hydrophobic.
  • the outer protective pouch comprises a peelable seal around at least part of its periphery.
  • the outer protective pouch comprises at least one aperture therein, wherein the aperture is removeably sealed by a peelable seal.
  • a peelable seal allows water to access the water soluble layers of the inner and outer bags without the need to totally separate the bags, which can prove difficult for some users, such as the elderly.
  • the peelable seal comprises a pressure-sensitive adhesive.
  • the peelable seal comprises at least one tab.
  • a tab assists in gripping of the seal to allow it to easily be peeled away from the outer pouch.
  • the outer protective pouch further comprises an outermost layer of fibrous material.
  • An outermost layer of fibrous material is used as a comfort layer to make the bag more attractive to a user and more comfortable to wear next to the skin.
  • the means defining the orifice further comprises a flange for securing the ostomy bag to the body wall of a patient, optionally an adhesive flange.
  • the outer protective pouch and the inner waste- collecting pouch are connected together at the adhesive flange. Still more preferably, the outer protective pouch and the inner waste-collecting pouch are connected together at the adhesive flange by a water-soluble bond or join.
  • the outer water-soluble layer of the inner waste- collecting pouch further comprises a water-impermeable weld around its periphery.
  • the strength of the inner waste-collecting pouch is improved by including a water soluble weld line.
  • the outermost wall of the outer protective pouch is provided with a flatus filter, optionally comprising activated charcoal.
  • a flatus filter permits gas to be exhausted from the bag, whilst filtering out malodorous gases.
  • the activated charcoal is supported by a degradable polymer, such as polylactic acid.
  • the filter is laminated on its major surfaces with a biodegradable film, such as polyvinyl acetate.
  • the laminate material of the outer protective pouch has a thickness of between about 0.025 and 0.100mm, wherein the outer layer of water-impermeable material has a thickness of between about 0.005 and 0.020mm and the inner layer of water-soluble material has a thickness of between about 0.020 and 0.080mm.
  • the laminate material of the inner waste-collecting pouch has a thickness of between about 0.025 and 0.100mm, wherein the outer layer of water-soluble material has a thickness of between about 0.005 and 0.020mm and the inner layer of water-impermeable material has a thickness of between about 0.020 and 0.080mm.
  • the term "about” is interpreted to mean optionally ⁇ 20%, preferably optionally ⁇ 10%, and more preferably optionally ⁇ 5%.
  • Figure 1 is a view from one side of an ostomy bag constructed in accordance with the present invention
  • Figure 2 is a sectional view of the ostomy bag of Figure 1;
  • Figure 3 is an enlarged view of the portion marked A in Figure 2.
  • the ostomy bag 1 comprises an outer protective pouch 3 and an inner waste-collecting pouch 5.
  • the inner pouch 5 is made of a laminate material.
  • the innermost layer 7 of the inner pouch 5 is a thin EVA (ethylene vinyl alcohol) film, such as DEV-07-04A from Exopack.
  • the innermost layer 7 is waterproof and strong enough to contain bodily waste held therein and provides an odour barrier.
  • the innermost EVA layer 7 is only a small proportion of the total thickness of the inner pouch 5, such that it is relatively insignificant to the bulk of the ostomy bag 1. This allows the bag 1 to be flushed away.
  • the innermost film 7 protects an outer soluble layer 9 of the inner waste-collecting pouch 5 from the contents of the bag.
  • the outer layer 9 of the inner pouch 5 is a film formed from a water-soluble or water- disintegrable polymer, such as PVOH.
  • suitable PVOH films are the Solubulun EF range available from Aichello Ltd, Japan.
  • the outer water soluble layer 9 of the inner pouch 5 comprises PVOH film which is soluble so that, when the inner waste-collecting pouch 5 is placed in water, the film dissolves or disintegrates.
  • the PVOH film layer 9 is soluble above 60 degrees Celsius, but below 60 degrees Celsius the film absorbs water, stretches and slowly dissolves such that the inner pouch 5 is flushable. It has been found that PVOH film is also able to provide a good odour barrier, provided that the material is kept dry. Testing of suitable PVOH films and experimental data to support this assertion is described later.
  • the outer layer 9 of the inner waste-collecting pouch 5 is a Teflon or starch-based film such as Telratex 1316 available from Donaldsons Limited or a silicone based film available from Speciality Silicone Fabricating.
  • the outer layer 9 of the inner pouch 5 is kept dry by the outer protective pouch 3.
  • the PVOH bonded material is also treated.
  • the outer surface 9 is plasma treated to modify its characteristics. This can provide further protection to the inner protective pouch 5
  • the laminate inner pouch 5 is sealed around its periphery either by heat sealing or an adhesive seam.
  • a Teflon-based film is used to make the inner pouch 5.
  • the layers of the inner pouch 5 cannot be welded directly together to securely seal the inner pouch 5, because Teflon film has poor welding capabilities.
  • EVA layers are used around the periphery of the inner pouch 5 to form a weld line 11, which extends around the periphery of the pouch 5.
  • This EVA weld line 11 is printed onto the inner pouch 5, applied as thin strips or using a hot melt adhesive. The EVA weld line 11 does not dissolve when the bag 1 is flushed down the toilet, but is small enough not to interfere with flushing of the bag 1 following use.
  • the outer protective pouch 3 also comprises an EVA/PVOH laminate.
  • the inner layer 13 of the outer protective pouch 3 comprises a PVOH fabric of film coated with an outer layer of EVA 15. At least part of the periphery of the outer protective pouch is held together by peelable seals 17.
  • the seals 17 may also comprise tabs on their outer face to allow a user to grip the seals 17 with ease.
  • the inner waste-collecting pouch 5 and the outer protective pouch 3 have openings 19, 21 in their body-side faces. Both pouches 3, 5 are welded together and to an annular flange 23 around the openings 19, 21.
  • the adhesive flange may be of any known type.
  • the welds 25 between the pouches 3, 5 and the annular flange 23 are formed of insoluble PVOH, which is biodegradable.
  • the flange 23 is provided on its external surface with a layer of hydrocolloid adhesive 23a, which enables the bag 1 to be fixed to the body of a patient about the stomal opening. Prior to use, the adhesive 23a is covered by a release liner (not shown).
  • the flange 23 and the hydrocolloid adhesive 23a are both soluble and/or biodegradable.
  • an additional odour barrier layer (not shown) is laminated to the inner and outer pouches 3, 5.
  • the odour barrier layer comprises a PVAIcohol, or PVacetate or an aluminosilicate based material.
  • the odour barrier properties may be enhanced by the incorporation of nano-crystalline clays into the film structures.
  • the use of an additional odour barrier layer is optional.
  • the bag 1 also comprises a flatus filter 27, which is shown in more detail in Figure 3.
  • the filter 27 comprises a layer of fabric 29 loaded with activated charcoal granules 31, sandwiched between two layers of PVOH 33.
  • the fabric 29 holding the activated charcoal 31 comprises a polylactic acid film, or an insoluble PVOH fabric.
  • the filter 27 serves to allow flatus gases to escape from the bag 1, whilst malodorous components of the gases are retained within the filter 27 by the activated charcoal granules 33.
  • the PVOH layers 33 sandwiching the activated charcoal are insoluble but biodegradable to allow the filter 27 to be flushed away with the bag 1, leaving only the activated carbon granules.
  • the assembly of the ostomy bag 1 of the present invention is formed by feeding the laminate material of the outer and inner pouches 3, 5 through cutting and sealing apparatus. Adhesive is applied around the periphery of the layers before the layers are heat sealed together to form the inner waste collecting pouch 5 and the outer protective pouch 3, shown in Figure 2.
  • the present invention also makes use of laser cutting of the filter 27. The method and apparatus for laser-cutting the filter are described in the applicant's co- pending UK patent application no. 0803558.6.
  • the inner and outer pouches are formed of a single sheet of laminate material.
  • the innermost layers of the sheet are used to form the inner waste-collecting pouch 5 and the outermost layers form the outer protective pouch 3.
  • the bag 1 is cut and sealed from a single sheet of laminate material.
  • the layers 3, 5 are separated by a gap, which, when the seal around the outer pouch 3 is removed, allows water to enter therebetween.
  • the gap is shown in Figure 2 as being continuous. In alterative embodiments of the present invention, the gap is discontinuous.
  • a patient positions the ostomy bag 1 in the normal manner, attaching the annular flange 23 to the body wall.
  • a user detaches the annular flange 23 and so the bag 1 from the body.
  • the peelable seals 17 at the top and bottom of the outer protective pouch 3 are removed by gripping the tabs provided, whilst the inner pouch 5, containing the bodily waste, remains in tact. It is not necessary for a user to fully separate the inner and outer pouches 3, 5.
  • the inner and outer pouches 3, 5 are still attached to each other by the PVOH welds at the openings 19, 21 of the bag 1.
  • the inner bag is exposed to water by peeling off the flange 23 to allow water to enter between the inner and outer pouches 3, 5.
  • the bag 1 is then dropped into the bowl of a toilet. Water flows into the gap between the innermost layer 13 of the outer pouch 3 and the outermost layer 9 of the inner pouch 5.
  • the water-soluble outer layer 9 of the inner bag 5 and the water-soluble inner layer 13 of the outer bag 3 rapidly dissolve and become limp, conforming more closely to the contours of the bag's contents and so reducing the buoyancy of the bag 1.
  • the majority of the components of the annular flange 23 and the filter 27 also dissolve.
  • the entire bag 1 can then be easily flushed away and the majority of the bag's component parts are biodegradable.
  • means are also provided for accelerating the breakdown of the components of the bag 1.
  • a sachet of chemicals or enzymes is provided in the gap between the outer pouch 3 and the inner pouch 5 of the bag 1.
  • a chemical or an enzyme reaction initiated when the sachet comes into contact with water in the toilet bowl accelerates the breakdown of the material of the bag 1.
  • a chemical reaction leads to the modification of the polymer materials from which the bag 1 is made or side groups to that polymer.
  • the enzyme's reaction specifically targets the polymer holding the structure of the bag 1 together.
  • further triggers could accelerate the breakdown of the material of the bag 1 on immersion into the toilet water.
  • a change in pH or ionic strength could act as trigger.
  • Heat via a exothermic or endothermic reaction can act as a trigger.
  • a microbiological reaction could breakdown the bag 1 by use of a micro-organism which metabolises or uses the polymer holding the bag 1 together as a food source.
  • ostomy bag of the invention examples include (without limitation); a modified PVA laminate comprising a cold water soluble PVA or PVA related polymer as a core layer; an outer hydrophobic layer, for example; a polyvinyl butyrate, a polymer having undergone a surface treatment with, for example silane, silicone, Teflon or another water resistant coating.
  • a modified PVA laminate comprising a cold water soluble PVA or PVA related polymer as a core layer; an outer hydrophobic layer, for example; a polyvinyl butyrate, a polymer having undergone a surface treatment with, for example silane, silicone, Teflon or another water resistant coating.
  • Alternatives to water degradable PVA polymers include PLAs and starch based polymers.
  • the laminate will include an odour barrier layer which might be combined with one of the other layers (the layer having dual functionality) or be a separate layer.
  • Polymers may be treated to improve odour barrier properties, for example by coating with odour preventing materials, or incorporating materials into the polymer.
  • the odour barrier layer is a polymer which has dispersed within it odour absorbing particles of a size which do not significantly impair the polymer's structural integrity.
  • a suitable particle material is clay particles, desirably the particles are nano-particles arranged to provide as large as possible surface area over which odour gases must pass to escape the pouch.
  • the odour barrier layer may also be treated with cationic surfactants.
  • barrier film made of standard EVA/PVDC/EVA laminate as discussed previously in the description of the present invention (a Welland Medical Ltd Ostomy film).
  • barrier film made of standard EVA/PVOH/EVA laminate as discussed previously in the description of the present invention (a Welland Medical Ltd Flushable Pouch Film).
  • Test 1 no moisture present
  • test 1 a sample of onion was placed in a sealed polyethylene (PE) bag at the bottom of a jig.
  • the jig comprises a small machined metal pot with a lid configured to trap a circular disc of test material and a defined area open to the atmosphere to allow moisture vapour transpiration. Circular discs of the film sample were clamped in the jig above the onion with the fluoropolymer coating facing towards the onion.
  • the PE bag contains any moisture, which escapes from the onion.
  • the jigs were placed in a sealed container and placed in an oven at 38°C for four hours. The container was then removed from the oven and olfactory tests were conducted to determine if an onion odour could be detected.
  • test 2 a sample of onion was placed in the bottom of a jig, as described above, and circular discs of the film sample were clamped in the jig above the onion with the fluoropolymer coating facing towards the onion.
  • the jigs were placed in a sealed container and placed in an oven at 38°C for four hours. The container was then removed from the oven and olfactory tests were conducted to determine if an onion odour could be detected.
  • Test 3 Onion moisture vapour against fluoropolymer side and moisture vapour against PVOH side.
  • test 3 a sample of onion was placed in the bottom of a jig, as described above, and circular discs of the film sample were clamped in the jig above the onion with the fluoropolymer coating facing towards the onion.
  • the jigs were placed in a sealed container containing water and placed in an oven at 38°C for four hours. The container was then removed from the oven and olfactory tests were conducted to determine if an onion odour could be detected.
  • test 4 the film samples were placed in contact with a known amount of water and over a predetermined period of time, between 24 and 168 hours, the moisture loss was recorded.
  • the films could be improved if they were provided as a single structure capable of being welded to itself and other components of an ostomy bag, such as non-woven materials, filters, wafers etc.
  • Test 4 shows that fluoropolymer or other barrier layer coatings are an effective protective barrier to moisture with no loss of moisture after 24 hours and only 0.25% or less after 168 hours. It is concluded that a combination of fluoropolymer and PVOH can successfully maintain an odour barrier in the presence of moisture. It was observed that a PVOH film as an outside layer of a film is adversely affected by moisture. Thus, a double layer of PVOH film with protective coatings outermost is preferable.

Abstract

L'invention porte sur un sac de stomie (1) destiné à recevoir des déchets corporels comprenant : un sachet protecteur externe (3) comprenant un matériau laminé avec une couche externe de matériau imperméable à l'eau (15) et une couche interne de matériau soluble dans l'eau (13) ; un sachet interne de collecte de déchets (5) confiné dans le sachet protecteur externe (3) comprenant un matériau laminé avec une couche externe de matériau soluble dans l'eau (9) et une couche interne de matériau imperméable à l'eau (7), et des moyens (23) définissant un orifice (19) pour permettre aux déchets corporels d'entrer dans le sachet interne (5) ; le sachet protecteur externe (3) étant scellé de façon amovible et à la fois le sachet protecteur externe (3) et le sachet interne de collecte de déchets (5) ayant une structure qui est fragilisée lors d'une immersion dans une cuvette de toilettes pour perdre tous les deux en flottaison de telle sorte que le sac (1) puisse être évacué.
PCT/GB2010/000826 2009-04-24 2010-04-26 Sac de stomie jetable WO2010122314A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2012527374A JP5784019B2 (ja) 2009-09-02 2010-04-26 使い捨てストーマ・バッグ
EP10719767.5A EP2473142B1 (fr) 2009-09-02 2010-04-26 Sac de stomie jetable
CN201080038974.9A CN102665618B (zh) 2009-09-02 2010-04-26 一次性造口袋
US13/393,606 US9539137B2 (en) 2009-09-02 2010-04-26 Disposable ostomy bag
DK10719767.5T DK2473142T3 (en) 2009-04-24 2010-04-26 Single stoma bag
AU2010240691A AU2010240691B2 (en) 2009-09-02 2010-04-26 Disposable ostomy bag
BR112012008101A BR112012008101B8 (pt) 2009-09-02 2010-04-26 bolsa de ostomia

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0907051.7A GB2469686B (en) 2009-04-24 2009-04-24 Ostomy pouch material
GB0907051.7 2009-04-24
GB0915266.1 2009-09-02
GB0915266.1A GB2473206B (en) 2009-09-02 2009-09-02 A flushable ostomy bag having an outer protective and inner waste collecting pouch

Publications (1)

Publication Number Publication Date
WO2010122314A1 true WO2010122314A1 (fr) 2010-10-28

Family

ID=42272646

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2010/000826 WO2010122314A1 (fr) 2009-04-24 2010-04-26 Sac de stomie jetable

Country Status (2)

Country Link
DK (1) DK2473142T3 (fr)
WO (1) WO2010122314A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8211072B2 (en) 2009-08-28 2012-07-03 Welland Medical Limited Ostomy bag
GB2510563A (en) * 2013-02-06 2014-08-13 Focus Product Developments Ltd Ostomy bag with interior PTFE coating
GB2533399A (en) * 2014-12-19 2016-06-22 Welland Medical Ltd Ostomy bag having an odour scavenger
JP2017225831A (ja) * 2011-03-17 2017-12-28 コンバテック・テクノロジーズ・インコーポレイテッドＣｏｎｖａｔｅｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｉｎｃ 高バリアエラストマーの糞便カテーテルまたはオストミーパウチ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290713A (en) * 1994-07-01 1996-01-10 Welland Medical Ltd Flushable ostomy bag liner
US5591144A (en) * 1992-12-01 1997-01-07 Welland Medical Limited Drainage bag
WO2005041828A2 (fr) * 2003-10-21 2005-05-12 Hollister Incorporated Poche de stomie detachable et jetable et procede d'utilisation
GB2434316A (en) * 2006-01-24 2007-07-25 Welland Medical Ltd Ostomy having inner and outer bags

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5591144A (en) * 1992-12-01 1997-01-07 Welland Medical Limited Drainage bag
GB2290713A (en) * 1994-07-01 1996-01-10 Welland Medical Ltd Flushable ostomy bag liner
WO2005041828A2 (fr) * 2003-10-21 2005-05-12 Hollister Incorporated Poche de stomie detachable et jetable et procede d'utilisation
GB2434316A (en) * 2006-01-24 2007-07-25 Welland Medical Ltd Ostomy having inner and outer bags

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8211072B2 (en) 2009-08-28 2012-07-03 Welland Medical Limited Ostomy bag
US8343120B2 (en) 2009-08-28 2013-01-01 Welland Medical Limited Ostomy bag
JP2017225831A (ja) * 2011-03-17 2017-12-28 コンバテック・テクノロジーズ・インコーポレイテッドＣｏｎｖａｔｅｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｉｎｃ 高バリアエラストマーの糞便カテーテルまたはオストミーパウチ
GB2510563A (en) * 2013-02-06 2014-08-13 Focus Product Developments Ltd Ostomy bag with interior PTFE coating
GB2533399A (en) * 2014-12-19 2016-06-22 Welland Medical Ltd Ostomy bag having an odour scavenger
GB2533399B (en) * 2014-12-19 2021-02-24 Welland Medical Ltd Ostomy bag having an odour scavenger

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