WO2009144486A2 - Dispositif de solidification de sécrétions et contrôle des mauvaises odeurs - Google Patents

Dispositif de solidification de sécrétions et contrôle des mauvaises odeurs Download PDF

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Publication number
WO2009144486A2
WO2009144486A2 PCT/GB2009/050502 GB2009050502W WO2009144486A2 WO 2009144486 A2 WO2009144486 A2 WO 2009144486A2 GB 2009050502 W GB2009050502 W GB 2009050502W WO 2009144486 A2 WO2009144486 A2 WO 2009144486A2
Authority
WO
WIPO (PCT)
Prior art keywords
insert
activated carbon
superabsorbent
ostomy bag
particle size
Prior art date
Application number
PCT/GB2009/050502
Other languages
English (en)
Other versions
WO2009144486A3 (fr
Inventor
David Campbell
Original Assignee
Trio Healthcare 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
Application filed by Trio Healthcare Limited filed Critical Trio Healthcare Limited
Publication of WO2009144486A2 publication Critical patent/WO2009144486A2/fr
Publication of WO2009144486A3 publication Critical patent/WO2009144486A3/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L28/00—Materials for colostomy devices
    • A61L28/0003—Materials for colostomy devices containing inorganic materials
    • 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
    • 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
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L28/00—Materials for colostomy devices
    • A61L28/0061—Materials for coating
    • A61L28/0065—Inorganic materials

Definitions

  • the present invention relates to a superabsorbent and malodour control composition and in particular, although not exclusively, to a superabsorbent for solidifying collected matter excreted by the body and a control agent for controlling odours associated with the excreted matter.
  • Ostomy patients typically wear an ostomy bag into which body waste is excreted. Ostomy patients fall into three categories, each category necessitating the patient wearing an ostomy bag. Firstly, urostomy patients typically have had their bladders removed. Accordingly in this case, urine is passed through the stoma and into the ostomy bag. Secondly, colostomy patients have undergone surgery to remove all or part of the colon necessitating an ostomy bag to collect both liquid and solid excreted matter. Thirdly, ileostomy patients similarly rely upon an ostomy bag to collect excreted matter which is redirected through the abdominal wall.
  • an ostomy bag comprises an opening which is sealed against the patient's skin around the surgically created body orifice, termed a stoma.
  • Many ostomy bags are provided with a discharge outlet to allow excreted matter to be emptied from the ostomy bag by the patient.
  • US 2002/0055594 discloses a superabsorbent tablet configured to thicken body excretions.
  • the tablet comprises a superabsorbent polymer in the form of cross linked sodium or calcium polyacrylate designed to provide quick gelling of the ostomy bag contents following excretion.
  • US 6,852,100 also discloses an ostomy pouch configured to reduce unpleasant odours.
  • Superabsorbent fibres are used in combination with a malodour counteractant selected from various different categories of odour controlling (masking and neutralising) agents including for example hydrogen peroxide and bacterial growth inhibiters such as sodium nitrate and benzyl alkonium chloride.
  • odour controlling (masking and neutralising) agents including for example hydrogen peroxide and bacterial growth inhibiters such as sodium nitrate and benzyl alkonium chloride.
  • GB 2329339 discloses a superabsorbent for an ostomy bag comprising granules of a superabsorbent formed into a stick or rod and housed within a water soluble outer sleeve. Odour counteractants, disinfectants and preservatives are also incorporated within the ostomy bag insert.
  • US 5,860,959 discloses a hydroscopic composition to reduce malodours from an ostomy bag.
  • Water absorbing materials such as starch or alkaline metal polyacrylates are employed as superabsorbents in combination with odour counteractants such as volcanic clays and activated carbon granules.
  • an ostomy bag insert configured to effectively solidify or gel excreted matter and control unwanted malodours.
  • the inventors provide a superabsorbent material for positioning within a stoma bag exhibiting superabsorbent and odour controlling properties.
  • the superabsorbent blend has been found to exhibit enhanced malodour reduction over existing ostomy bag inserts.
  • an ostomy bag insert comprising: a polyacrylate superabsorbent; and powdered activated carbon; wherein the superabsorbent is coated with the powdered activated carbon.
  • the powdered activated carbon may comprise a particle size equal to or less than 0.15 mm and/or 0.045 mm and/or 0.075 mm.
  • 99% by weight of the activated carbon may comprise a particle size equal to or less than 0.15mm; 95% by weight of the activated carbon may comprise a particle size equal to or less than 0.075 mm and 90% by weight of the activated carbon may comprise a particle size equal to or less than 0.045 mm.
  • the activated carbon comprises and is derived from coconut shell char.
  • the activated carbon may comprise a surface area of substantially 1250 m 2 /g.
  • the polyacrylate superabsorbent comprises a granular configuration being at least one or a multiple order of magnitude greater in size than the particle size of the activated carbon.
  • the activated carbon may be bound to the superabsorbent granules by electrostatic forces.
  • the superabsorbent may comprise sodium or calcium polyacrylate.
  • the powdered activated carbon may comprise any metal impregnated activated charcoal.
  • the superabsorbent and powdered activated carbon blend is housed within a water soluble paper sachet.
  • the paper sachet may comprise sodium carboxy methyl cellulose and wood pulp.
  • the edges of the sachet may be heat sealed so as to trap the granular superabsorbent and powdered activated carbon within the envelope formed by the soluble paper.
  • the active blend may be encased within water soluble films (e.g. PVA films), gel caps, plastic straws/wands or formed as tablets.
  • the insert may comprise a plurality of separate units (e.g. tablets, gel caps, sachets). These units would then be inserted separately into the ostomy bag.
  • an ostomy bag comprising an insert as described herein.
  • the insert may be permanently or temporarily attached to an internal wall of the ostomy bag using conventional means found in the art.
  • the insert may be attached to the internal walls via a flap, strap or permeable pouch or cover allowing release of the superabsorbent and odour absorbing material upon contact with the excreted body fluid.
  • the insert comprises 1,000 mg to 10,000 mg of the polyacrylate superabsorbent and 25 mg to 5,000 mg of the powdered activated carbon.
  • Figure 1 illustrates an ostomy bag comprising an insert configured to solidify liquid matter within the ostomy bag and control and reduce malodours according to a specific implementation of the present invention
  • Figure 2 illustrates a partial cut-away view of the ostomy bag insert of figure 1 formed as a sachet containing a granular and powdered material;
  • Figure 3 illustrates a superabsorbent granule coated with activate carbon.
  • the inventors provide a material blend configured to solidify excreted matter within an ostomy bag and to reduce odours within the ostomy bag which would otherwise be released from the bag when it is emptied by a patient.
  • a material blend is housed within a water soluble sachet which provides a convenient means by which the liquid and odour absorbing material blend may be stored and transported prior to use within the ostomy bag.
  • the dissolvable sachet may be used in all manner of pouches or bags designed for collecting body excretions such as ostomy, drainage bags or other applications where body fluids require thickening or gelling and odour control (neutralisation/absorption).
  • FIG 1 illustrates an ostomy bag 100 comprising an internal chamber 105 and an inlet opening 101 surrounded by an annular adhesive pad 102.
  • a drainage flap 103 is provided at a lower region 106 of bag 100.
  • An odour controlling and liquid superabsorbent insert 104 is housed within internal chamber 105 and is dimensioned so as to pass through inlet opening 101 during initial insertion prior to attachment of bag 100 and through outlet opening 103 after empty and reuse of bag 100.
  • ostomy bag 100 is secured to the skin of a patient at the abdominal region, via adhesive pad 102 such that inlet opening 101 is aligned with the stoma site formed in the patient. Accordingly, excreted matter passes through the stoma and into internal chamber 105 of ostomy bag 100 via inlet opening 101.
  • the excreted body fluid contacts insert 104 which acts to gel (partially solidify) the fluid matter and control malodours within internal chamber 105.
  • the contents of the ostomy bag 100 may then be emptied via the flap arrangement 103 configured to dispense liquid and/or solid from internal chamber 105.
  • Flap 103 may comprise any conventional tap or flap design configured to allow liquid and/or solid matter to be released from internal chamber 105.
  • a new insert may then be inserted into internal chamber 105 via the flap 103 such that a user is not required to detach bag 100 from positioning around the stoma.
  • insert 104 is formed as a sachet comprising a water soluble paper having an upper layer 200 and a lower opposed layer 204.
  • the edges of the upper and lower layers 200, 204 are heat sealed 201 to define an internal cavity 202 sealed along all four edges of the rectangular sachet.
  • Insert 104 comprises liquid and odour absorbing material blend 203 (comprising a polyacrylate based superabsorbent 300 and powdered activated carbon 301) housed within internal cavity 202 formed by the upper and lower layers 200, 203.
  • the present invention may comprise any specific polyacrylate comprising superabsorbent properties suitable for use to absorb fluids, excreted by the human body.
  • the powdered activated carbon may comprise any activated carbon or charcoal configured to control malodours of the type associated with human body excreted matter.
  • the superabsorbent is formed as granules or pellets.
  • the finely powdered activated carbon readily coats the external surface of the granules or pellets providing an active blend exhibiting enhanced odour control over existing stoma bag inserts.
  • the powdered activated carbon may be maintained at the outer surface of the superabsorbent granules by, in part, the electrostatic interactions between the superabsorbent and the powdered activated carbon.
  • the stoma bag insert 104 comprises activated carbon powder derived 301 from coconut shell char. Activation of the carbon is provided by high temperature steam processing of the coconut shells followed by grinding to yield small carbon particulates sized and configured to achieve maximised surface area.
  • the size range of the powdered activated carbon 301 is as follows: 99% by weight of the powdered carbon comprises a particle size of 0.15 mm; 95% by weight of the powdered carbon comprises a particle size of 0.075 mm and; 90% by weight of the powdered carbon comprises a particle size of 0.045 mm.
  • the average surface area of the activated carbon 301 is 1250 m7g.
  • the superabsorbent 300 comprises sodium polyacrylate and the water soluble sachet comprises sodium carboxy methyl cellulose and wood pulp comprising a thickness in a range 0.07 mm to 0.09 mm.
  • the water soluble sachet comprises 2 g of sodium polyacrylate and 250 mg of powdered activated carbon.

Landscapes

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

Abstract

La présente invention se rapporte à une pièce rapportée de poche de stomie (104) comprenant un matériau super-absorbant de polyacrylate (300) et de la poudre de carbone activé (301). La pièce rapportée de poche de stomie est conçue pour absorber les fluides excrétés par le corps et pour contrôler les odeurs émanant des matières excrétées dans la poche de stomie (100). La poudre de carbone activé fait preuve d’un contrôle des odeurs renforcé.
PCT/GB2009/050502 2008-05-30 2009-05-13 Dispositif de solidification de sécrétions et contrôle des mauvaises odeurs WO2009144486A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0809904A GB2460458B (en) 2008-05-30 2008-05-30 Discharge solidifier and malodour control
GB0809904.6 2008-05-30

Publications (2)

Publication Number Publication Date
WO2009144486A2 true WO2009144486A2 (fr) 2009-12-03
WO2009144486A3 WO2009144486A3 (fr) 2010-08-19

Family

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PCT/GB2009/050502 WO2009144486A2 (fr) 2008-05-30 2009-05-13 Dispositif de solidification de sécrétions et contrôle des mauvaises odeurs

Country Status (2)

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GB (1) GB2460458B (fr)
WO (1) WO2009144486A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013030581A1 (fr) * 2011-09-02 2013-03-07 Trio Healthcare Limited Dispositif de solidification de sécrétions et destruction des mauvaises odeurs
EP3047862A1 (fr) 2015-01-20 2016-07-27 Medela Holding AG Produit gélifiant pour réservoir collecteur de fluides
US10166137B2 (en) 2011-03-17 2019-01-01 Convatec Technologies Inc. High barrier elastomer fecal catheter or ostomy pouch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2590935B (en) * 2020-01-07 2024-04-17 Salts Healthcare Ltd A method of manufacturing an ostomy appliance

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0347746A1 (fr) * 1988-06-23 1989-12-27 The Procter & Gamble Company Matériau biconstituant
GB2302028A (en) * 1996-08-29 1997-01-08 Bristol Myers Squibb Co Deodorising filter for ileostomy pouch
US5860959A (en) * 1996-02-13 1999-01-19 Bristol-Meyers Squibb Company Controlled release of additives in an ostomy pouch or bag
US20030022573A1 (en) * 2000-04-25 2003-01-30 The Procter & Gamble Company Articles having an odor control system comprising a cationic polysaccharide and an odor controlling agent
EP1398011A2 (fr) * 1997-09-18 2004-03-17 Bristol-Myers Squibb Company Dispositifs d'ostomie
EP1637100A2 (fr) * 2004-09-16 2006-03-22 Bristol-Myers Squibb Company Etanchéité pour un dispositif contrôle de stomie
US20060173430A1 (en) * 2005-02-03 2006-08-03 Baosheng Lee Fluid-absorbing products comprising superabsorbent material in a water-soluble pouch and methods of using the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0347746A1 (fr) * 1988-06-23 1989-12-27 The Procter & Gamble Company Matériau biconstituant
US5860959A (en) * 1996-02-13 1999-01-19 Bristol-Meyers Squibb Company Controlled release of additives in an ostomy pouch or bag
GB2302028A (en) * 1996-08-29 1997-01-08 Bristol Myers Squibb Co Deodorising filter for ileostomy pouch
EP1398011A2 (fr) * 1997-09-18 2004-03-17 Bristol-Myers Squibb Company Dispositifs d'ostomie
US20030022573A1 (en) * 2000-04-25 2003-01-30 The Procter & Gamble Company Articles having an odor control system comprising a cationic polysaccharide and an odor controlling agent
EP1637100A2 (fr) * 2004-09-16 2006-03-22 Bristol-Myers Squibb Company Etanchéité pour un dispositif contrôle de stomie
US20060173430A1 (en) * 2005-02-03 2006-08-03 Baosheng Lee Fluid-absorbing products comprising superabsorbent material in a water-soluble pouch and methods of using the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10166137B2 (en) 2011-03-17 2019-01-01 Convatec Technologies Inc. High barrier elastomer fecal catheter or ostomy pouch
WO2013030581A1 (fr) * 2011-09-02 2013-03-07 Trio Healthcare Limited Dispositif de solidification de sécrétions et destruction des mauvaises odeurs
CN104114129A (zh) * 2011-09-02 2014-10-22 康沃特克有限公司 排放物的固化和异味控制
KR20160086431A (ko) * 2011-09-02 2016-07-20 콘바텍 리미티드 배설물 고형화 및 악취 제어
AU2012300645B2 (en) * 2011-09-02 2017-03-09 Convatec Limited Discharge solidifier and malodour control
RU2629337C2 (ru) * 2011-09-02 2017-08-28 КонваТек Лимитед Средство отверждения выделений и управления неприятными запахами
KR102047567B1 (ko) 2011-09-02 2019-11-21 콘바텍 리미티드 배설물 고형화 및 악취 제어
US11103621B2 (en) 2011-09-02 2021-08-31 Convatec Ltd Discharge solidifier and malodour control
EP3047862A1 (fr) 2015-01-20 2016-07-27 Medela Holding AG Produit gélifiant pour réservoir collecteur de fluides

Also Published As

Publication number Publication date
GB0809904D0 (en) 2008-07-09
WO2009144486A3 (fr) 2010-08-19
GB2460458A (en) 2009-12-02
GB2460458B (en) 2010-12-22

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