WO2003072147A2 - Sterilisateur a vapeur - Google Patents
Sterilisateur a vapeur Download PDFInfo
- Publication number
- WO2003072147A2 WO2003072147A2 PCT/GB2003/000827 GB0300827W WO03072147A2 WO 2003072147 A2 WO2003072147 A2 WO 2003072147A2 GB 0300827 W GB0300827 W GB 0300827W WO 03072147 A2 WO03072147 A2 WO 03072147A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steam
- steriliser
- sterilising
- compartment
- sterilisation
- Prior art date
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
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
-
- 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
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
- A61L2/06—Hot gas
- A61L2/07—Steam
-
- 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
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/24—Apparatus using programmed or automatic operation
-
- 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
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/12—Apparatus for isolating biocidal substances from the environment
- A61L2202/122—Chambers for sterilisation
-
- 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
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/23—Containers, e.g. vials, bottles, syringes, mail
Definitions
- the present invention relates to a steam steriliser applicable with particular advantage to sterilising baby equipment.
- 'baby equipment' will be used to mean any requisites for a baby, usually feeding equipment, which need to be sterilised. Examples are bottles, teats, spoons, dummies, and breast pumps. Sterilisation is intended to supplement washing to help reduce the risk of infection from bacterial growth.
- the first is chemical sterilisation, which is carried out in a cold water solution containing a dissolved sterilising tablet. Items are submerged in the solution for at least 30 minutes. A fresh solution has to be made every 24 hours.
- a tank of sterilising equipment is a permanent feature of the home and represents a continuous method.
- the second method is microwave steam sterilisation. Here all items are placed within an open container or tray. A small reservoir of water is placed adjacent the items on the tray. The complete unit is heated within a microwave oven such that the resulting steam is produced over a suitable period of time to sterilise the contents of the tray. This method depends upon the availability of a microwave oven.
- the third method is electric steam sterilisation where all items are placed within a container.
- a small reservoir of water below the items is heated by an electric heating element such that the resulting steam is produced over a suitable period of time to sterilise the contents of the container.
- the heating elements are difficult to access and clean. This can lead to a build up of debris and water deposits which creates a potential for germ and bacterial growth. Removal of items immediately after steam sterilisation can be hazardous and inconvenient. This is due to the excessive amount of steam released by the opening of the container; the outer temperature of the container can reach 90°C and the items can be too hot to touch.
- a steam steriliser comprising a sterilising compartment including a water reservoir, a water heating element for producing steam and a sterilising station for receiving items to be sterilised, and in the upper area of the sterilising compartment, a condenser for condensing steam rising to the ceiling of the sterilising compartment.
- the inner surface of the sterilising compartment is arranged such that condensed water runs down the walls of the compartment to return to the reservoir, thus helping to cool the walls of the compartment.
- the condenser comprises a condensing element of high conductance material having a pathway for ambient air defined on its upper surface, and a fan for drawing ambient air across the surface. The use of ambient air cools the upper area of the steriliser.
- the fan may be operated at different speeds, one for use during sterilisation and a second higher speed for cooling the compartment and its contents after sterilisation. This means that the sterilised items can be handled soon after sterilisation.
- the steriliser includes a timer for controlling the time of sterilisation, and for timing the period from sterilisation for indicating if the contents are still sterile.
- the steriliser includes a door coupled to a door open sensor so that an indication can be made that the door has been opened.
- a steam steriliser comprising a sterilising compartment including an openable door, the door being coupled to a door opened sensor , with steam generation means coupled to electronic control means including a timer, capable of operating in an automatic mode such that when the contents of the steriliser are no longer sterile, due to the period elapsed since sterilisation or the door having been opened, the electronic control means automatically initiates a further sterilisation cycle.
- the period which elapses since sterilisation has to be less than 2 hours in order to retain the sterility of the contents.
- the steriliser also includes a thermometer to measure the temperature of sterisilisation. If this is incorrect, the sterilisation can be repeated.
- the electronic control means also includes a user interface which allows the user to time when sterilisation to occur to delay the start of the cycle so that the sterilisation is within 2 hours of intended use of the contents.
- Replenishing of the water reservoir is optimised by the condensing effect and the form of the inner walls of the sterilising compartment which directs the water back to the base rather than allow steam to escape from the container.
- the sterilising compartment includes a pressure release system, typically in the form of a relief valve to ensure pressure build up within the second compartment remains within safe levels.
- a pressure release system typically in the form of a relief valve to ensure pressure build up within the second compartment remains within safe levels.
- the steriliser includes an inlet for replenishing the water reservoir when it falls below a threshold level.
- the water reservoir includes a water level indicator for this purpose.
- the steriliser includes an easily accessible and removable heating element to facilitate cleaning of the entire steriliser and thus reduce the risk of bacterial build up.
- the door is a fold down side door to allow ready removal of the sterilised items.
- the sterilisation station may just comprise a foraminous floor lying above a water reservoir onto which the items to be sterilised may be placed.
- the steriliser includes one or more trays mountable within the sterilising compartment for receiving the articles.
- the steriliser also includes a concealable /slidable cable tidy to reduce the amount of excess cable lying adjacent the steriliser.
- the steriliser includes a carry handle at or around its top to assist portability.
- the container may have clear walls which may be double skinned with two walls separated by an air gap to provide an insulating volume of air so that the outer walls of the container are safe to touch during and immediately after sterilisation.
- the air gap may also incorporate a water channel for the condensed water to return to the reservoir.
- the shape of the container and its upper area may be designed to ensure maximum efficiency of the condenser and to improve flow of condensed water back into the reservoir.
- the choice of such design will be readily apparent to the skilled addressee of the specification.
- the heating element and control electronics may be powered by mains electricity but for portability preferably it includes an auxiliary battery power.
- FIG 2 is a perspective view of the steam steriliser
- Figure 3 is a block diagram illustrating the control and user interface of the steam steriliser; and ,
- Figure 4 is a flow chart illustrating the automatic operation of the steriliser.
- a steam steriliser 1 comprises a sterilising compartment 3 including a water reservoir (not shown) , a water heating element 5 for producing steam and a sterilising station 7 for receiving items 9 to be sterilised, and in the upper area of the sterilising compartment 3 a condenser 11 for condensing steam rising to the ceiling of the sterilising compartment 9.
- the condenser 11 comprises a condensing element 13 of high heat conductance material having a pathway 15 for ambient air defined on its upper surface 17, and a fan 19 for drawing air across the surface 17.
- the fan can be operated at two speeds, a first sterilising speed and a second faster cooling speed to allow rapid cooling of the steriliser and its contents after sterilisation.
- the system is arranged such that the cooling cycle initiates immediately after sterilisation.
- the steriliser 1 also comprises a door 21 which is openable and coupled to a door opened sensor 23.
- the heater 5 comprising the steam generation means is coupled to electronic control means 25 which includes a timer (not shown) capable of operating in an automatic mode such that when the contents of the steriliser are no longer sterile, due to the period elapsed since sterilisation or the door 21 having been opened, the electronic control means 25 automatically initiates a further sterilisation cycle.
- the steriliser 1 includes a user interface 27 which comprises a series of user control buttons 29 and a display 31.
- Control electronics 25 is coupled to the user control buttons 29, display 31, the heater 5, the door open sensor 23 and a temperature sensor 33. It is also coupled to fan 19 to control switch it on and off and to control its speed.
- the control electronics 25 include a timer (not shown) which allows the time of heating to be monitored and controlled.
- the lid open sensor 23 senses when the lid has been opened to allow a message to be displayed on the display means 31 that the contents are now non sterile. Similarly after 2 hours after completion of sterilisation a similar message is displayed.
- the sterilization cycle reinitiates after 2 hours automatically or after the lid has been opened and then reclosed.
- the temperature sensor 33 senses whether the sterilisation has been carried out at the correct temperature and indicates whether resterilisation is required.
- the surface of the condensing element 13 is domed and shaped to maximize the collection and flow of condensed water from the condenser surface to the walls of the compartment for return to the water reservoir.
- water inlet 35 At the side of the compartment 3 is water inlet 35 for replenishing the water reservoir when it falls below a threshold level.
- a water level indicator 37 in the form of a window indicates when replenishment is required.
- a pressure relief valve provides a pressure release system to avoid unwanted pressure build up in the sterilising compartment.
- the heating element 5 is easily accessible and removable for easy cleaning to prevent the risk of bacterial build up.
- the door 21 is a fold down side door to allow ready removal of the sterilised items.
- the sterilisation station 7 comprises a slide in basket, which is perforate to allow easy movement of the steam around its contents.
- a carry handle 41 is included at the top of the steriliser to assist portability
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003215726A AU2003215726A1 (en) | 2002-02-27 | 2003-02-27 | Steam steriliser |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0204594A GB0204594D0 (en) | 2002-02-27 | 2002-02-27 | Turbo-bottle steam steriliser |
GB0204594.6 | 2002-02-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003072147A2 true WO2003072147A2 (fr) | 2003-09-04 |
WO2003072147A3 WO2003072147A3 (fr) | 2003-11-06 |
Family
ID=9931895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2003/000827 WO2003072147A2 (fr) | 2002-02-27 | 2003-02-27 | Sterilisateur a vapeur |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003215726A1 (fr) |
GB (1) | GB0204594D0 (fr) |
WO (1) | WO2003072147A2 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007004784A1 (fr) * | 2005-07-01 | 2007-01-11 | Daewoo Electronics Corporation | Rangement multifonctionnel de puériculture doté d’un compartiment de stérilisation à vapeur |
US20100116145A1 (en) * | 2006-08-25 | 2010-05-13 | Sunbeam Products, Inc. | Baby food maker |
WO2015114578A1 (fr) | 2014-01-30 | 2015-08-06 | Steelco S.P.A. | Dispositif pour traiter et transporter des instruments médicaux de façon protégée |
CN108324980A (zh) * | 2018-04-24 | 2018-07-27 | 安吉县安信信息有限公司 | 一种碳化硅陶瓷消毒装置 |
CN110976459A (zh) * | 2019-12-05 | 2020-04-10 | 吴晶晶 | 一种化妆品瓶体用清洗消毒设备 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109395109B (zh) * | 2017-08-16 | 2023-07-21 | 宁波方太厨具有限公司 | 消毒柜及消毒方法 |
CN111068078B (zh) * | 2019-12-17 | 2021-03-19 | 陈碧霞 | 一种微生物培养基的灭菌机 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1039499A (en) * | 1965-03-15 | 1966-08-17 | Hans George Skaller | Sterilizing apparatus |
US4259293A (en) * | 1979-11-28 | 1981-03-31 | American Dental Association Health Foundation | Fluorochemical vapor autoclave |
US4710350A (en) * | 1984-06-27 | 1987-12-01 | Petersen C William | Apparatus and method for sterilizing with vaporizable liquids |
US4923681A (en) * | 1986-10-03 | 1990-05-08 | Archeraire Industries, Inc. | High velocity hot air sterilization device with controller |
WO1992001479A1 (fr) * | 1990-07-19 | 1992-02-06 | Midmark Corporation | Appareil a steriliser avec porte actionnee automatiquement |
GB2284043A (en) * | 1993-11-23 | 1995-05-24 | Hung Yi Yang | Combined hot water dispensing and sterilising apparatus |
WO1997047798A1 (fr) * | 1996-06-12 | 1997-12-18 | Celia Jaber De Oliveira | Appareil a vapeur permettant de repasser et de steriliser des vetements |
-
2002
- 2002-02-27 GB GB0204594A patent/GB0204594D0/en not_active Ceased
-
2003
- 2003-02-27 WO PCT/GB2003/000827 patent/WO2003072147A2/fr not_active Application Discontinuation
- 2003-02-27 AU AU2003215726A patent/AU2003215726A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1039499A (en) * | 1965-03-15 | 1966-08-17 | Hans George Skaller | Sterilizing apparatus |
US4259293A (en) * | 1979-11-28 | 1981-03-31 | American Dental Association Health Foundation | Fluorochemical vapor autoclave |
US4710350A (en) * | 1984-06-27 | 1987-12-01 | Petersen C William | Apparatus and method for sterilizing with vaporizable liquids |
US4923681A (en) * | 1986-10-03 | 1990-05-08 | Archeraire Industries, Inc. | High velocity hot air sterilization device with controller |
WO1992001479A1 (fr) * | 1990-07-19 | 1992-02-06 | Midmark Corporation | Appareil a steriliser avec porte actionnee automatiquement |
GB2284043A (en) * | 1993-11-23 | 1995-05-24 | Hung Yi Yang | Combined hot water dispensing and sterilising apparatus |
WO1997047798A1 (fr) * | 1996-06-12 | 1997-12-18 | Celia Jaber De Oliveira | Appareil a vapeur permettant de repasser et de steriliser des vetements |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007004784A1 (fr) * | 2005-07-01 | 2007-01-11 | Daewoo Electronics Corporation | Rangement multifonctionnel de puériculture doté d’un compartiment de stérilisation à vapeur |
US20100116145A1 (en) * | 2006-08-25 | 2010-05-13 | Sunbeam Products, Inc. | Baby food maker |
WO2015114578A1 (fr) | 2014-01-30 | 2015-08-06 | Steelco S.P.A. | Dispositif pour traiter et transporter des instruments médicaux de façon protégée |
CN108324980A (zh) * | 2018-04-24 | 2018-07-27 | 安吉县安信信息有限公司 | 一种碳化硅陶瓷消毒装置 |
CN110976459A (zh) * | 2019-12-05 | 2020-04-10 | 吴晶晶 | 一种化妆品瓶体用清洗消毒设备 |
Also Published As
Publication number | Publication date |
---|---|
AU2003215726A1 (en) | 2003-09-09 |
GB0204594D0 (en) | 2002-04-10 |
WO2003072147A3 (fr) | 2003-11-06 |
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