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公开(公告)号：EP1875321A1
公开(公告)日：2008-01-09
申请号：EP06726924.1
申请日：2006-04-26
申请人： Tristel PLC
CPC分类号： G05D11/138 , A61L2/18 , A61L2/24 , A61L2202/14 , A61L2202/17 , B08B9/032 , G01N35/1097 , Y10T137/0324 , Y10T137/0396 , Y10T137/86083
摘要： Apparatus for controlling the flow of fluids through a sample channel comprises : a reservoir (10) having a reservoir inlet (12), the reservoir inlet (12) being for connection to a source of a first fluid; a sample channel (20) having a sample channel inlet (28), the sample channel inlet (28) being for connection to a source of a second fluid; a syphon (32) connected between the reservoir (10) and the sample channel (20); means (30, 58) for trapping fluid in at least part- of the sample channel (20); wherein the apparatus is configured such that in use air can be allowed into the syphon (32) to create an air gap in the syphon, the air gap preventing first fluid (11) in the reservoir from contacting trapped fluid in the sample channel (20); the apparatus further comprising pump means (24) for pumping fluid out of the sample channel (20) and for pumping air out of the syphon (32) such that fluid in the reservoir (10) can flow through the syphon (32) and into the sample channel (20).
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公开(公告)号：EP1644051B1
公开(公告)日：2008-01-02
申请号：EP04743535.9
申请日：2004-07-23
申请人： Tristel PLC
CPC分类号： A61L2/18 , A61L2/24 , C01B11/023 , C01B11/024
摘要： A method of producing a stream of aqueous chlorine dioxide sterilizing fluid suitable for use in sterilizing medical and dental equipment or for wound irrigation or skin asepsis is described. Steps are: pumping fluid portions of a first reagent and a second reagent into the proximal end of an elongate reaction chamber (24) to form a reaction mixture, the reagents being selected to react together to form aqueous chlorine dioxide; providing a stream of water around or adjacent to the distal end of the reaction chamber (24); continuing to pump fluid portions of said reagents so as to cause the reagent mixture to travel through the reaction chamber and then into the stream of water to form a stream of aqueous chlorine dioxide sterilizing fluid; wherein the pumping rates and the internal dimensions of the elongate reaction chamber (24) are selected so that the reaction to form chlorine dioxide is substantially complete when the reagent mixture exits the reaction chamber (24); and continuing pumping fluid portions of said reagents until a desired quantity of said sterilizing fluid has been produced; wherein the pumping of each reagent is carried out by means of a diaphragm pump (90, 92) or a piston pump via a pressure-control valve (32, 34) so that each fluid portion is pumped at substantially constant pressure.
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公开(公告)号：EP1875321B1
公开(公告)日：2010-01-13
申请号：EP06726924.1
申请日：2006-04-26
申请人： Tristel PLC
CPC分类号： G05D11/138 , A61L2/18 , A61L2/24 , A61L2202/14 , A61L2202/17 , B08B9/032 , G01N35/1097 , Y10T137/0324 , Y10T137/0396 , Y10T137/86083
摘要： Apparatus for controlling the flow of fluids through a sample channel comprises : a reservoir (10) having a reservoir inlet (12), the reservoir inlet (12) being for connection to a source of a first fluid; a sample channel (20) having a sample channel inlet (28), the sample channel inlet (28) being for connection to a source of a second fluid; a syphon (32) connected between the reservoir (10) and the sample channel (20); means (30, 58) for trapping fluid in at least part- of the sample channel (20); wherein the apparatus is configured such that in use air can be allowed into the syphon (32) to create an air gap in the syphon, the air gap preventing first fluid (11) in the reservoir from contacting trapped fluid in the sample channel (20); the apparatus further comprising pump means (24) for pumping fluid out of the sample channel (20) and for pumping air out of the syphon (32) such that fluid in the reservoir (10) can flow through the syphon (32) and into the sample channel (20).
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公开(公告)号：EP1644051A1
公开(公告)日：2006-04-12
申请号：EP04743535.9
申请日：2004-07-23
申请人： Tristel PLC
CPC分类号： A61L2/18 , A61L2/24 , C01B11/023 , C01B11/024
摘要： A method of producing a stream of aqueous chlorine dioxide sterilizing fluid suitable for use in sterilizing medical and dental equipment or for wound irrigation or skin asepsis is described. Steps are: pumping fluid portions of a first reagent and a second reagent into the proximal end of an elongate reaction chamber (24) to form a reaction mixture, the reagents being selected to react together to form aqueous chlorine dioxide; providing a stream of water around or adjacent to the distal end of the reaction chamber (24); continuing to pump fluid portions of said reagents so as to cause the reagent mixture to travel through the reaction chamber and then into the stream of water to form a stream of aqueous chlorine dioxide sterilizing fluid; wherein the pumping rates and the internal dimensions of the elongate reaction chamber (24) are selected so that the reaction to form chlorine dioxide is substantially complete when the reagent mixture exits the reaction chamber (24); and continuing pumping fluid portions of said reagents until a desired quantity of said sterilizing fluid has been produced; wherein the pumping of each reagent is carried out by means of a diaphragm pump (90, 92) or a piston pump via a pressure-control valve (32, 34) so that each fluid portion is pumped at substantially constant pressure.
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