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公开(公告)号：EP2240142B1
公开(公告)日：2011-08-17
申请号：EP08868429.5
申请日：2008-12-18
发明人： JONES, Ross, Peter
CPC分类号： A61M1/0035 , A61F9/00736
摘要： In an aspiration flow measurement system, a flow channel 108 is provided for receiving an aspiration fluid flow therethrough. The flow measurement system further includes an aspiration flow measurement chamber 102 and a flow sensor that is configured to generate a raw signal indicative of the rate of fluid flow through the flow channel 102. A control system 200 is configured to monitor the signals indicating the flow through the flow measurement chamber 102, and to determine when a value of the raw signal 250 is indicative of a disruption caused by the presence of an air bubble, wherein the control system 200 generates a filtered signal 260 of the flow rate that is exclusive of any signal values that are indicative of a disruption.
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公开(公告)号：EP2227198A1
公开(公告)日：2010-09-15
申请号：EP08858923.9
申请日：2008-11-24
发明人： JONES, Ross, Peter
CPC分类号： A61F9/00736 , A61M1/0056 , A61M2205/12
摘要： The present invention provides a surgical system 10 a source of irrigation fluid 20, a collection cassette 30, a handpiece 50 applied to a surgical area for infusing irrigation fluid and for aspirating a biological material, first and second conduits (60 and 62) connecting the handpiece 50 to each of the source of irrigation fluid 20 and the collection cassette 30, a monitoring device 70 and means for trapping materials 80 that cause signal disruption to the monitoring device 70.
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公开(公告)号：EP2240142A1
公开(公告)日：2010-10-20
申请号：EP08868429.5
申请日：2008-12-18
发明人： JONES, Ross, Peter
CPC分类号： A61M1/0035 , A61F9/00736
摘要： In an aspiration flow measurement system, a flow channel 108 is provided for receiving an aspiration fluid flow therethrough. The flow measurement system further includes an aspiration flow measurement chamber 102 and a flow sensor that is configured to generate a raw signal indicative of the rate of fluid flow through the flow channel 102. A control system 200 is configured to monitor the signals indicating the flow through the flow measurement chamber 102, and to determine when a value of the raw signal 250 is indicative of a disruption caused by the presence of an air bubble, wherein the control system 200 generates a filtered signal 260 of the flow rate that is exclusive of any signal values that are indicative of a disruption.
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公开(公告)号：EP2231219A2
公开(公告)日：2010-09-29
申请号：EP08862473.9
申请日：2008-12-09
IPC分类号： A61M1/00
CPC分类号： G01F1/584 , A61M1/0023 , A61M1/0029 , A61M2205/12 , G01F1/58
摘要： A flow measurement device (100) is provided that includes an electrode terminal chamber (102) with an inlet (104) in communication with a flow channel (108) for receiving fluid and viscoelastic material aspirated from a surgical site, and an outlet (106) that tapers into a flow channel (108). The outlet (108) has a taper angle that is sufficient to smooth flow and cause viscoelastic material entering the electrode terminal chamber (102) to flow substantially within a center portion of the chamber and through the outlet (106). The electrode terminal chamber (102) further includes first and second electrode terminals (130) and (140) disposed on generally opposite sides of the electrode terminal chamber (102) in a spaced-apart manner. The first and second electrode terminals (130) and (140) are positioned a distance from the center of the chamber (102) that is sufficient to substantially avoid contact between the terminals and viscoelastic materials flowing through the chamber (102).
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公开(公告)号：EP2222352B1
公开(公告)日：2014-06-18
申请号：EP08860301.4
申请日：2008-12-02
IPC分类号： A61M1/00
CPC分类号： A61M1/0023 , A61M1/0029 , A61M2205/12 , A61M2205/3317 , A61M2205/3379
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公开(公告)号：EP2231219B1
公开(公告)日：2013-01-16
申请号：EP08862473.9
申请日：2008-12-09
CPC分类号： G01F1/584 , A61M1/0023 , A61M1/0029 , A61M2205/12 , G01F1/58
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公开(公告)号：EP2222352A2
公开(公告)日：2010-09-01
申请号：EP08860301.4
申请日：2008-12-02
IPC分类号： A61M1/00
CPC分类号： A61M1/0023 , A61M1/0029 , A61M2205/12 , A61M2205/3317 , A61M2205/3379
摘要： An air bubble separator is provided for ophthalmic surgical systems, which includes a housing 102 having a diagonally-oriented flow channel 110 and a vertically-oriented flow channel 130 adjoining the diagonally oriented channel. The diagonally-oriented flow channel 110 has a downstream portion 112 disposed downstream of the vertically-oriented flow channel 130, and an upstream portion 118 disposed upstream of the vertically-oriented flow channel 130. The downstream portion 112 of the diagonally-oriented flow channel 110 has a cross-sectional area 114 that is greater than that of the upstream portion 118. The downstream portion's cross-sectional area 114 is greater than the upstream portion's cross-sectional area 124 by an amount or percentage that is sufficient to slow fluid flow through the diagonally-oriented flow channel 110, so as to cause air within the fluid to rise and flow into the vertically-oriented flow channel 130.
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