GB1596047A - Colostomy and like bags - Google Patents
Colostomy and like bags Download PDFInfo
- Publication number
- GB1596047A GB1596047A GB1849577A GB1849577A GB1596047A GB 1596047 A GB1596047 A GB 1596047A GB 1849577 A GB1849577 A GB 1849577A GB 1849577 A GB1849577 A GB 1849577A GB 1596047 A GB1596047 A GB 1596047A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bag
- filter
- bag according
- welded
- cloth
- 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.)
- Expired
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
Description
(54) IMPROVEMENTS IN COLOSTOMY AND LIKE BAGS
(71) We, KINGSDOWN MEDICAL
CONSULTANTS LIMITED, a British
Company, of Blackfriars House, 19 New
Bridge Street London EC4V 6BY, do hereby declare the invention for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: - This invention relates to an ostomy bag by which is meant an ileostomy bag, a colostomy bag, a cecostomy bag, or a like bag for use by a patient who has been subjected to surgery to produce an artificial orifice from the body, from which body wastes are expelled.
A problem for users of such bags is that unpleasant or embarrasing odours, or an embarrasing distention of the bag, may be produced by flatus. The pior art is replete with attempts to overcome this problem, and many designs of bag have been suggested which include vents to allow escape of flatus gases and filters to attempt to remove odours therefrom. Such attempts, though numerous, have not been wholly successful. Examples of prior suggestions are British Patent Specifications Nos. 239,582, 648,718, 843,962, 1,117,204, 1,212,904, 1,363,644, 1,379,464, 1,405,032, 1,416,594, 1,462,492 and 1,471,839.
According to the invention, there is provided an ostomy bag as herein defined formed by a front wall and a back wall both of plastics material secured together around their periphery except at one or more regions each of which defines an orifice for the escape of gases and which is intended to be at the top of the bag in the undeformed condition of the bag, there being an aperture in the rear wall of the bag for substantial alignment, in use, with the stoma opening of the patient, and there being a filter in juxtaposition with the orifice positioned so that the gases escaping through the orifice pass through the filter before or after the orifice.
The filter may be in woven fibrous form.
The walls may be welded together around their
periphery and the welding element is inter
rupted so as ta provide an unwelded portion
which constitutes the orifice. There may be
a plurality of equally-spaced orifices in the
top edge of the bag each defined by un
welded regions The filter may be of woven
carbon cloth consisting principally of carbon
in an activated state.
In a preferred embodiment of the in
vention, there may be a second weld across
the top of the bag also having a region
where the bag walls are not joined, there
being carbon cloth filter material interposed
between the bag walls and held in position
by the two welds.
Alternatively, a second weld extending
across the top of the bag may be provided in a top region of the bag, the pocket between the two welds being substantially filled with activated carbon cloth and the second weld having one or more gaps therein to define one or more orifices to allow passage of gases from interior of the bag into the pocket and thence to the exterior. Such a construction has some points of similarity to the proposal of T.R. Baxter in U.S. Patent
Specification No. 3,055,068, but Baxter failed to provide any filter material and allowed the unimpeded escape of odorous gases.
In one embodiment of the invention, activated carbon cloth material is disposed between the top edges of the front and back walls of the bag, and is maintained in position by the weld. The welding is carried out in such a manner that the plastics walls are not connected where there is filter material, although they are connected around the rest of the periphery of the bag.
In another embodiment of the invention, a flat hollow housing is welded into an upper edge of the bag so that it is sandwiched between the front and rear walls, and the interior of the housing is provided with a filter material. In such an arrangement, the fiat hollow housing may contain a bobbin having a central mandrel upon which activated carbon cloth is wound, the flanges of the bobbin being a substantially gas-tight fit with the housing and being provided with apertures positioned so that gases passing therethrough are constrained to pass mainly through the carbon cloth wound on the mandrel.
In yet another embodiment of the invention, the hollow housing may contain activated carbon granules. The housing may be a thin rectangular block of synthetic plastics material seen in section perpendicular to the gas path therethrough, the bag walls being welded to the long sides of the rectangular housing.
The housing alternatively may have a plurality of holes therethrough, leading from the interior to the exterior of the bag, and there is provided a filter cartridge having hollow pins which fit snugly in said holes, the arrangement being such that gas passing from the interior to the exterior of the bag passes through the hollow pins, into and through filter material contained in the cartridge, and out of an escape vent from the cartridge.
The invention will be better understood from the following non-limiting description of examples thereof given with reference to the accompanying drawings in which: Figure 1 is a front view seen from the position of the wearer of our example of colostomy bag according to the invention;
Figure 2 is a similar front view of a
second example of ostomy bag according to the invention;
Figure 3 is a cross-section on the line Ill-Ill in Figure 2; and
Figure 4 is a top view of the cartridge
looking in the direction of the arrow IV in
Figure 3.
The ostomy bag illustrated in Figure 1
has front and rear walls of which the rear
wall is shown at 10. In this specification,
"front" and "rear" are used in the sense
that the front wall of the bag is the wall
further from the wearer when the bag is
being worn. The rear wall has a central
circular orifice to which is applied one coup
ling member of a coupling for securing the
bag to the user. An advantageous design
of coupling is disclosed and claimed in our
British Patent Application No. 13411/77
(Serial No. 1,571,657) to which the reader
is referred. The body-side coupling member
is shown at 12. The two walls of the bag,
preferably of a synthetic plastics material
(that known by the Registered Trade Mark
SARAN is suitable) are welded together
(usually heat-welded) by a weld 14 around
their periphery. The welding tool is such
as to provide a special configuration of weld seams in the top region of the bag. The word "top" is used in relation to a bag when normally worn by a patient. A substantially rectangular piece of activated carbon cloth 16 is placed between the walls of the bag, centrally at the top edge of the bag (considered as an empty substantially flat bag lying in a vertical plane), and the weld seams at that region provide a peripheral weld 18 and two welds and each of which has a generally horizontal portion 26 and a generally vertical portion 28 which at its top end merges with the weld 18. The portions 28 overlap the carbon cloth and secure it firmly in position. The region 30 at the periphery and the region 32 between the bar weld portions 26 are left unwelded, that is, the welding electrode or bar is interrupted at those regions. Hence there is a gas path edgewise through the carbon cloth 16 to the exterior of the bag as indicated by the arrow 34. The boundaries of this gas path are formed by the front and rear bag walls and the two weld portions 28.
It will be seen that the above-described arrangement contrasts with that shown in
British Patent Specification No. 1,541,565 wherein a continuous weld 4 extends along the whole of the top edge of the bag.
A second example of the invention is illustrated in Figures 2--4. A colostomy bag has a front wall 50 and a rear wall 52 connected by a peripheral weld 54. Disposed between these walls and welded to both is an insert block 56 having three holes 58 therethrough extending from the interior of the bag to the exterior. The axes of the holes 58 are parallel to each other. The block is preferably but not necessarily of synthetic plastics material. The purpose of the block is to provide a mounting and an attachment point for a filter cartridge 60. This may be of moulded plastics material and has a filter-receiving compartment 62 defined by front and rear walls 64 and side walls 66. The bottom wall 68 of the cartridge has three holes 70 therethrough and extending from the bottom wall are three hollow pins 72. These pins are a snug push fit in the holes 58 in the block. That is to say, the cartridge 60 can readily be inserted and removed by pushing the hollow pins 72 into the holes 58, and, once inserted, is reliably maintained in the top edge of the bag by the snug fit between the pins and the holes.
The compartment 62 contains filter material.
This is preferably folded woven activated carbon cloth 63.
It is preferably folded in layers with the planes of layers parallel to those of the
walls 64. It will be seen that there is thus defined a gas path for escaping odorous gases through the hollow pins, through the filter material in the compartment 62 and out of the top of the cartridge. In this way, the gases are largely or wholly deodorised. As an optional refinement, a masking perfume may also be contained in the cartridge.
In a modification of the invention, the filter is provided by a thin plug of suitable porous foam plastics material which is located between two layers of woven carbon filter cloth. The filter is again located in a position which will be the top of the bag when it is in use and the filter cloth is wrapped around the bottom and each side of the plug. The wrapped plug is then welded into the bag edge, the direct weld between the two sheets which defines the outline of the bag being interrupted at this point and at this area the two sheets forming the bag being welded to the foam plastics plug.
WHAT WE CLAIM IS:
1. An astomy bag as herein defined formed by a front wall and a back wall both of plastics material secured together around their periphery except at one or more regions each of which defines an orifice for the escape of gases and which is intended to be at the top of the bag in the undeformed condition of the bag, there being an aperture in the rear wall of the bag for substantial alignment, in use, with the stoma opening of the patient, and there being a filter in juxtaposition with the orifice positioned so that the gases escaping through the orifice pass through the filter before or after the orifice.
2. A bag according to Claim 1 in which the filter is of woven fibrous form.
3. A bag according to Claim 1 in which the walls are welded together around their periphery and the welding element is interrupted so as to provide an unwelded portion which constitutes the orifice.
4. A bag according to any of Claims 1-3 in which there are a plurality of equallyspaced orifices in the top edge of the bag each defined by unwelded regions.
5. A bag according to any preceding Claim in which the filter is woven carbon cloth consisting principally of carbon in an activated state.
6. A bag according to Claim 4 or Claim 3 when dependent on Claim 2 in which a second weld extending across the bag is provided in a top region of the bag, the pocket between the two welds being substantially filled with activated carbon cloth and the second weld having one or more gaps therein to define one or more orifices to allow passage of gases from interior of the bag into the pocket and thence to the exterior.
7. A bag according to Claim 5 in which woven activated carbon cloth is disposed between the edges of the front and back walls of the bag at an upper region of the bag, and is maintained there by the weld.
8. A bag according to Claim 7 in which a plurality of layers of carbon cloth are laid one upon each other, interleaved with thin plastics sheets, and the assembly so produced is welded into the bag edge at or near the top of the bag.
9. A bag according to Claim 1 in which a flat hollow housing is welded into an upper edge of the bag so that it is sandwiched between the front and rear walls, and the interior of the housing is provided with a filter material.
10. A bag according to Claim 9 in which the housing contains a bobbin having a central mandrel upon which activated carbon cloth is wound, the flanges of the bobbin being a substantially gas-tight fit with the housing and being provided with apertures positioned so that gases passing therethrough are constrained to pass mainly through the carbon cloth wound on the mandrel.
11. A bag according to Claim 9 in which the hollow housing contains activated carbon granules.
12. A bag according to Claim 9, 10 or
11 in which the housing is a thin rectangle block of synthetic plastics material seen in section perpendicular to the gas path therethrough, the bag walls being welded to the long sides of the rectangular housing.
13. A bag according to Claim 12 in which the housing has a plurality of holes therethrough, leading from the interior to the exterior of the bag, and there is provided a filter cartridge having hollow pins which fit snugly in said holes, the arrangement being such that gas passing from the interior to the exterior of the bag passes through the hollow pins, into and through filter material contained in the cartridge, and out of an escape vent from the cartridge.
14. An ostomy bag as herein defined substantially as herein described with reference to and as illustrated in Figure 1 or Figures 2--4 of the accompanying drawings.
15. A colostomy bag consisting of two sheets of synthetic plastics material welded together face-to-face at their marginal portions to define the outline of the bag, one sheet having an aperture which can receive the stoma of a patient via a suitable coupling, the latter providing means for securing the bag to the patient, a filter positioned in the marginal portion of the bag in such a position that it will be at the top of the bag in the undeformed condition of the bag when the plastics sheets are substantially vertical, the filter being in the from of a
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (17)
1. An astomy bag as herein defined formed by a front wall and a back wall both of plastics material secured together around their periphery except at one or more regions each of which defines an orifice for the escape of gases and which is intended to be at the top of the bag in the undeformed condition of the bag, there being an aperture in the rear wall of the bag for substantial alignment, in use, with the stoma opening of the patient, and there being a filter in juxtaposition with the orifice positioned so that the gases escaping through the orifice pass through the filter before or after the orifice.
2. A bag according to Claim 1 in which the filter is of woven fibrous form.
3. A bag according to Claim 1 in which the walls are welded together around their periphery and the welding element is interrupted so as to provide an unwelded portion which constitutes the orifice.
4. A bag according to any of Claims 1-3 in which there are a plurality of equallyspaced orifices in the top edge of the bag each defined by unwelded regions.
5. A bag according to any preceding Claim in which the filter is woven carbon cloth consisting principally of carbon in an activated state.
6. A bag according to Claim 4 or Claim 3 when dependent on Claim 2 in which a second weld extending across the bag is provided in a top region of the bag, the pocket between the two welds being substantially filled with activated carbon cloth and the second weld having one or more gaps therein to define one or more orifices to allow passage of gases from interior of the bag into the pocket and thence to the exterior.
7. A bag according to Claim 5 in which woven activated carbon cloth is disposed between the edges of the front and back walls of the bag at an upper region of the bag, and is maintained there by the weld.
8. A bag according to Claim 7 in which a plurality of layers of carbon cloth are laid one upon each other, interleaved with thin plastics sheets, and the assembly so produced is welded into the bag edge at or near the top of the bag.
9. A bag according to Claim 1 in which a flat hollow housing is welded into an upper edge of the bag so that it is sandwiched between the front and rear walls, and the interior of the housing is provided with a filter material.
10. A bag according to Claim 9 in which the housing contains a bobbin having a central mandrel upon which activated carbon cloth is wound, the flanges of the bobbin being a substantially gas-tight fit with the housing and being provided with apertures positioned so that gases passing therethrough are constrained to pass mainly through the carbon cloth wound on the mandrel.
11. A bag according to Claim 9 in which the hollow housing contains activated carbon granules.
12. A bag according to Claim 9, 10 or
11 in which the housing is a thin rectangle block of synthetic plastics material seen in section perpendicular to the gas path therethrough, the bag walls being welded to the long sides of the rectangular housing.
13. A bag according to Claim 12 in which the housing has a plurality of holes therethrough, leading from the interior to the exterior of the bag, and there is provided a filter cartridge having hollow pins which fit snugly in said holes, the arrangement being such that gas passing from the interior to the exterior of the bag passes through the hollow pins, into and through filter material contained in the cartridge, and out of an escape vent from the cartridge.
14. An ostomy bag as herein defined substantially as herein described with reference to and as illustrated in Figure 1 or Figures 2--4 of the accompanying drawings.
15. A colostomy bag consisting of two sheets of synthetic plastics material welded together face-to-face at their marginal portions to define the outline of the bag, one sheet having an aperture which can receive the stoma of a patient via a suitable coupling, the latter providing means for securing the bag to the patient, a filter positioned in the marginal portion of the bag in such a position that it will be at the top of the bag in the undeformed condition of the bag when the plastics sheets are substantially vertical, the filter being in the from of a
layer of woven carbon cloth which is disposed between the overlaid marginal portions of the two plastics sheets in such a way as to be welded between the said overlaid marginal portions.
16. A bag according to claim 15 in which the cloth consists at least predominantly of carbon in an activated state.
17. A bag according to claim 16 in which the cloth is cloth produced in accordance with the process defined in claim 1 of British
Patent No. 1,301,101.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1849577A GB1596047A (en) | 1978-04-28 | 1978-04-28 | Colostomy and like bags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1849577A GB1596047A (en) | 1978-04-28 | 1978-04-28 | Colostomy and like bags |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1596047A true GB1596047A (en) | 1981-08-19 |
Family
ID=10113414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1849577A Expired GB1596047A (en) | 1978-04-28 | 1978-04-28 | Colostomy and like bags |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1596047A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0064044A1 (en) * | 1981-04-23 | 1982-11-03 | Sven Hagberg Läkarpraktik Ab | Colostomy pouch |
| JPS57192552A (en) * | 1981-05-07 | 1982-11-26 | Matburn Holdings Ltd | Surgical drainage bag |
| GB2121902A (en) * | 1982-03-11 | 1984-01-04 | Craig Med Prod Ltd | A coupling for an ostomy bag |
| US4636205A (en) * | 1983-10-13 | 1987-01-13 | Craig Medical Products Limited | Ostomy bag magnetic coupling |
| GB2177924A (en) * | 1985-07-16 | 1987-02-04 | Craig Med Prod Ltd | Side coupling element for ostomy appliances |
| US5074851A (en) * | 1988-03-07 | 1991-12-24 | E. R. Squibb & Sons, Inc. | Ostomy bag including a multiple layer filter |
| CN111447893A (en) * | 2017-12-22 | 2020-07-24 | 科洛普拉斯特公司 | Ostomy appliance with layered base plate and/or sensor assembly portion and related methods |
-
1978
- 1978-04-28 GB GB1849577A patent/GB1596047A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0064044A1 (en) * | 1981-04-23 | 1982-11-03 | Sven Hagberg Läkarpraktik Ab | Colostomy pouch |
| JPS57192552A (en) * | 1981-05-07 | 1982-11-26 | Matburn Holdings Ltd | Surgical drainage bag |
| JPH0460659B2 (en) * | 1981-05-07 | 1992-09-28 | Matburn Holdings Ltd | |
| GB2121902A (en) * | 1982-03-11 | 1984-01-04 | Craig Med Prod Ltd | A coupling for an ostomy bag |
| US4636205A (en) * | 1983-10-13 | 1987-01-13 | Craig Medical Products Limited | Ostomy bag magnetic coupling |
| GB2177924A (en) * | 1985-07-16 | 1987-02-04 | Craig Med Prod Ltd | Side coupling element for ostomy appliances |
| US5074851A (en) * | 1988-03-07 | 1991-12-24 | E. R. Squibb & Sons, Inc. | Ostomy bag including a multiple layer filter |
| CN111447893A (en) * | 2017-12-22 | 2020-07-24 | 科洛普拉斯特公司 | Ostomy appliance with layered base plate and/or sensor assembly portion and related methods |
| CN111447893B (en) * | 2017-12-22 | 2022-09-06 | 科洛普拉斯特公司 | Ostomy appliance with layered base plate and/or sensor assembly portion and related methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19980427 |