WO1997034549A1 - Sacs de collecte de selles - Google Patents
Sacs de collecte de selles Download PDFInfo
- Publication number
- WO1997034549A1 WO1997034549A1 PCT/GB1997/000718 GB9700718W WO9734549A1 WO 1997034549 A1 WO1997034549 A1 WO 1997034549A1 GB 9700718 W GB9700718 W GB 9700718W WO 9734549 A1 WO9734549 A1 WO 9734549A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- ostomy bag
- filter
- bag according
- sheets
- Prior art date
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
- A61F5/441—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices having venting or deodorant means, e.g. filters ; having antiseptic means, e.g. bacterial barriers
Definitions
- This invention relates to ostomy bags and in particular ileostomy bags having a flatus gas filter arrangement.
- an ostomy bag comprising first and second sheets of a waterproof, preferably polymeric, material sealed together around their peripheral margins; the first sheet having an opening for receiving bodily waste from a stoma, the opening being surrounded by fastening means for fastening the bag to the skin of a patient about the stoma; the first or second sheets having a vent covered by a flatus filter; a third sheet being interposed between the first and second sheets and being sealed to the first sheet; the third sheet serving to divide the interior of the bag into a first waste receiving chamber in which the said opening is located, and a second chamber from which flatus gases pass to the vent, the second chamber having an area which is at least as great as the area of the first chamber; the third sheet having a perforation or plurality of perforations defining a primary filter allowing the passage of gas between the first and second chambers; wherein the primary filter and flatus filter are not superimposed, but are laterally offset as to define a lateral
- first, second and third sheets are of the same size, the third sheet being sealed to the first sheet by means of a first seal and the first, second and third sheets being sealed together by means of a second seal which is formed outwardly of the first seal.
- the seals are typically formed by means of welding, for example RF welding.
- welding for example RF welding.
- the ostomy bag is preferably a drainable ostomy bag and has a sealable drainage opening at a lower end thereof.
- the bag is particularly suitable for use with ileostomy patients producing high volumes of essentially liquid waste.
- the third sheet is typically sealed to the first and second sheets around substantially its entire peripheral margins, provided that when the ostomy bag is a drainable ostomy bag having a drainage opening, the third sheet need not be sealed to the first and second sheets at the drainage opening.
- the first chamber typically has an area which is between 75% and 99% of the area of the second chamber. More usually, the area of the first chamber will be 85% to 99% of the area of the second chamber.
- the primary filter and flatus filter are preferably both located at the upper end of the ostomy bag above the opening for receiving stomal waste.
- upper end in the present context is meant the end of the ostomy bag which would normally be uppermost when the bag is fitted to a patient.
- the flatus filter is preferably secured to the exterior of the bag, but preferably is concealed within a comfort layer, if such is present.
- a hydrophobic filter may be arranged to cover the vent on the inside of the bag wall.
- the hydrophobic filter can, for example, take the form of a hydrophobic paper filter, for example a material of the type sold by Whatman under the code Whatman F51 3-01 .
- the perforations in the third sheet defining the primary filter can be of any shape but preferably are in the form of fibrillations.
- the fibrillations preferably have a maximum dimension in the range 0.4mm to 5mm, preferably 1 mm to 3mm, for example approximately 2mm.
- the perforations are not fibrillations or slits, but for example are circular or square in form, they may have a maximum dimension of up to 2mm, or preferably up to 1 mm and a minimum dimension of 0.4mm.
- the primary filter preferably represents the only opening between the first and second chambers.
- the lateral flow path between the primary filter and the flatus filter advantageously is at least 4cm and more preferably is at least 5cm in length.
- Figures 1 A to 1 D are views from the rear, side, front and top respectively of a drainable ileostomy bag according to one embodiment of the invention
- Figure 2 is an exploded view of the embodiment of Figures 1 A to 1 D.
- Figure 3 is an exaggerated sectional elevation along the line I-I of Figure 1 A;
- Figure 4 is an exaggerated sectional elevation along the line ll-ll of Figure 1 A.
- the ileostomy bag comprises first and second sheets of polymeric film 2,4 sealed together around their peripheral margins 6.
- Sheets 2 and 4 are formed from a trilaminate of ethylene vinyl acetate/polyvinylidene dichloride (PVDO/ethylene vinyl acetate (EVA).
- PVDO/ethylene vinyl acetate (EVA) ethylene vinyl acetate/polyvinylidene dichloride
- the EVA/PVDC/EVA film is impermeable to both liquids and gases, the PVDC layer serving as a gas barrier.
- a suitable grade of trilaminate film is the 100 micron thick F513-01 grade supplied by Grace GmbH of Larderstedt Germany.
- the first sheet 2 has a central opening 8 which fits about the stoma of a patient, and functions as the inlet for receiving stomal waste.
- Surrounding the opening 8 is an adhesive flange 10 of conventional construction.
- the adhesive flange has a backing layer 12, a hydrocolloid adhesive layer 14 and a peelable release layer 16.
- the hydrocolloid flange is used in conventional fashion to fasten the ostomy bag to the patient's body wall.
- a vent hole 1 8 which is covered on the exterior surface of sheet 2 by a flatus filter 20.
- Flatus filter 20 may be of conventional design and contain an activated carbon adsorbent.
- a suitable filtering medium is Type T9C Activated Carbon Cloth available from Carbon Cloth Ltd.
- a comfort layer of non woven fabric 5 is secured to and overlays the first sheet 2 in conventional fashion.
- a third sheet 22 is interposed between the first and second sheet 2,4, and is welded to the first sheet 2 and comfort layer 5 at its peripheral margins by an inner weld line 24 and to both the first and second sheets 2,4 and the comfort layer 5 by the outer weld line 25.
- an annular weld strip 26 connects the first and third sheets 2,22 and the comfort layer 5.
- the third sheet 22 acts to divide the interior of the ostomy bag into a first chamber 28 and a second chamber 30. Since the area within the outer weld line 25 is greater than the area within the inner weld line 24, the area of the second chamber is correspondingly larger than the area of the first chamber.
- An opening 32 in the wall of the third sheet provides gas communication between the second chamber 30 and the vent 18.
- Primary filter 34 comprises a plurality of fibrillations in the third sheet 22.
- the fibrillations in this case are arranged in a circular array although this is not necessary. They could instead be arranged in a rectangular array or indeed any other convenient shape.
- the fibrillations typically are from about 1 mm to about 3mm in length and are sufficiently large to allow free flow of gas therethrough, but act to inhibit or prevent solid and much liquid waste from passing from the first chamber 28 into the second chamber 30.
- the first step in the process involves the welding together of the hydrocolloid adhesive flange 10, comfort layer 5 and the first sheet 2 by means of an annular weld (not shown) around the opening 8 to form a first intermediate assembly.
- Inner weld line 24 has a short arcuate extension 24a which partially surrounds the primary filter 34, and the purpose of which will become apparent.
- the second sheet 4 is welded to the second intermediate assembly along outer weld line 25.
- liquid waste passes through the opening 8 into the first chamber 28.
- the primary filter 34 As the bag fills up, or if the patient adopts a reclining position, some liquid waste may seep through the primary filter 34.
- the flatus filter 20 is offset laterally from the primary filter, liquid passing through the primary filter 34 does not come into contact directly with the flatus filter and this reduces the chances of blockage occurring.
- Flow of liquid from the primary filter towards the flatus filter is further inhibited by the arcuate extension 24a of the inner weld line 24 which acts as a dam and diverts the liquid in a downwards direction away from the flatus filter.
- a further filtering action is carried out by the hydrophobic paper filter 32 thereby offering a further means of preventing blockage of the flatus filter.
- the gas flow path through the bag is shown by means of the dotted line 36.
- gas passes into the bag along with the other stomal waste products through opening 8, and then around the dam formed by arcuate weld line extension 24a, through primary filter 34, across the bag and out through hydrophobic paper filter 33, vent hole 32, vent hole 18 and flatus filter 20. Any noxious substances in the flatus gases are removed by adsorption on the activated carbon in the flatus filter.
- the second chamber 30 has a greater area than the first chamber 28 and one consequence of this is that even if the bag balloons due to excessive quantities of flatus gas, the clearance between the third and second sheets 22,4 is maintained thereby keeping the gas flow path to the bag exterior open.
- a further advantage of the arrangement shown is that if the second chamber 30 does fill with liquid, manipulation of the bag by the patient can unblock the primary filter and also the hydrophobic filter 32.
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)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97908346A EP0836458A1 (fr) | 1996-03-15 | 1997-03-14 | Sacs de collecte de selles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9605438.2 | 1996-03-15 | ||
GBGB9605438.2A GB9605438D0 (en) | 1996-03-15 | 1996-03-15 | Ostomy bags |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997034549A1 true WO1997034549A1 (fr) | 1997-09-25 |
Family
ID=10790421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1997/000718 WO1997034549A1 (fr) | 1996-03-15 | 1997-03-14 | Sacs de collecte de selles |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0836458A1 (fr) |
GB (2) | GB9605438D0 (fr) |
WO (1) | WO1997034549A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19752598C1 (de) * | 1997-11-27 | 1999-08-26 | Riesinger | Auffangbeutel zum Anschluß an nicht-natürliche Körperöffnungen (Stromata) beim Menschen |
DE10230885B4 (de) * | 2001-07-10 | 2004-10-21 | Alcare Co., Ltd. | Sammelbehälter für Körperabsonderungen |
EP2163228B1 (fr) | 2002-07-04 | 2015-09-16 | ConvaTec Technologies Inc. | Sac collecteur d'excréments humains |
US20210100677A1 (en) * | 2019-10-04 | 2021-04-08 | Convatec Limited | Ostomy appliance |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2345853A (en) | 1999-01-19 | 2000-07-26 | Salt & Son Ltd | Ostomy bag |
DK175356B1 (da) * | 2002-02-28 | 2004-09-06 | Coloplast As | Stomiindretning |
GB2426197B (en) * | 2005-03-05 | 2009-08-19 | Salts Healthcare Ltd | Ostomy bag |
WO2021064406A1 (fr) | 2019-10-04 | 2021-04-08 | Convatec Limited | Appareil de stomie |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2116433A (en) * | 1982-03-16 | 1983-09-28 | Hollister Inc | Ostomy pouch |
DE3237127A1 (de) * | 1982-10-07 | 1984-04-12 | Rudolf 4600 Dortmund Tebbe | Beutel fuer stomatraeger zum auffangen des darminhalts |
GB2139501A (en) * | 1983-04-14 | 1984-11-14 | Craig Med Prod Ltd | Ostomy bag, particularly for ileostomy patients |
DE3639171A1 (de) * | 1986-11-15 | 1988-05-26 | Sandler Helmut Helsa Werke | Kolostomiebeutel |
GB2215608A (en) * | 1988-03-07 | 1989-09-27 | Squibb & Sons Inc | Ostomy bag including a filter |
EP0607028A1 (fr) * | 1993-01-14 | 1994-07-20 | E.R. Squibb & Sons, Inc. | Sac d'ostomie comportant un filtre à plusieurs étages |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5348546A (en) * | 1993-05-21 | 1994-09-20 | Norton Walter L | Ostomy bag with liquid-gas separation device |
-
1996
- 1996-03-15 GB GBGB9605438.2A patent/GB9605438D0/en active Pending
-
1997
- 1997-03-14 WO PCT/GB1997/000718 patent/WO1997034549A1/fr not_active Application Discontinuation
- 1997-03-14 GB GB9705394A patent/GB2311014B/en not_active Expired - Lifetime
- 1997-03-14 EP EP97908346A patent/EP0836458A1/fr not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2116433A (en) * | 1982-03-16 | 1983-09-28 | Hollister Inc | Ostomy pouch |
DE3237127A1 (de) * | 1982-10-07 | 1984-04-12 | Rudolf 4600 Dortmund Tebbe | Beutel fuer stomatraeger zum auffangen des darminhalts |
GB2139501A (en) * | 1983-04-14 | 1984-11-14 | Craig Med Prod Ltd | Ostomy bag, particularly for ileostomy patients |
DE3639171A1 (de) * | 1986-11-15 | 1988-05-26 | Sandler Helmut Helsa Werke | Kolostomiebeutel |
GB2215608A (en) * | 1988-03-07 | 1989-09-27 | Squibb & Sons Inc | Ostomy bag including a filter |
EP0607028A1 (fr) * | 1993-01-14 | 1994-07-20 | E.R. Squibb & Sons, Inc. | Sac d'ostomie comportant un filtre à plusieurs étages |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19752598C1 (de) * | 1997-11-27 | 1999-08-26 | Riesinger | Auffangbeutel zum Anschluß an nicht-natürliche Körperöffnungen (Stromata) beim Menschen |
DE10230885B4 (de) * | 2001-07-10 | 2004-10-21 | Alcare Co., Ltd. | Sammelbehälter für Körperabsonderungen |
EP2163228B1 (fr) | 2002-07-04 | 2015-09-16 | ConvaTec Technologies Inc. | Sac collecteur d'excréments humains |
US20210100677A1 (en) * | 2019-10-04 | 2021-04-08 | Convatec Limited | Ostomy appliance |
CN114502114A (zh) * | 2019-10-04 | 2022-05-13 | 康沃特克有限公司 | 造口术器具 |
Also Published As
Publication number | Publication date |
---|---|
GB9605438D0 (en) | 1996-05-15 |
EP0836458A1 (fr) | 1998-04-22 |
GB2311014B (en) | 1999-08-04 |
GB9705394D0 (en) | 1997-04-30 |
GB2311014A (en) | 1997-09-17 |
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