Patents Assigned to Platform Diagnostics Limited
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Patent number: 9201065Abstract: The invention relates to agglutination assays and related kits, reagents and devices. In particular methods of assaying small analytes having few epitopes are disclosed, by means of using hub moieties to which multiple analytes may be bound by a first epitope, together with a further moiety capable of binding a second analyte epitope and which is also capable of binding to a detectable particle. Stable agglutinated complexes may be so formed, which may used as the basis for various assay formats.Type: GrantFiled: November 13, 2006Date of Patent: December 1, 2015Assignee: Platform Diagnostics LimitedInventors: Carolyn Jennifer Ruddell, Gerald John Allen, Douglas Robert Evans, Elizabeth Burke
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Patent number: 9028771Abstract: The invention provides a modified form of saturation assay, which is based on the measurement of a free or unbound labelled reagent fraction (such that there is an increase in signal in the presence of analyte) and employs trapping zones to concentrate said unbound or free labelled fraction to avoid loss of sensitivity. Preferably, the assay is a membrane assay.Type: GrantFiled: November 9, 2007Date of Patent: May 12, 2015Assignee: Platform Diagnostics LimitedInventors: Douglas Robert Evans, Gerald John Allen, Carolyn Jennifer Ruddell
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Patent number: 8685715Abstract: The present invention provides an agglutination based assay system for determining the presence and/or amount of analyte in a sample comprising a test device having one or more capillary pathways comprising detection regions adapted for non-visual detection of a sample which is releasably engageable with a reader which comprises detection means for detecting the sample at the detection regions in each of said capillary pathways and electronic means for indicating the presence and/or amount of analyte.Type: GrantFiled: October 28, 2005Date of Patent: April 1, 2014Assignee: Platform Diagnostics LimitedInventors: Stephen John Minter, Damian Joseph Peter Bond, Carolyn Jennifer Ruddell
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Publication number: 20130071950Abstract: A sample testing device for testing for the presence of a component of interest in a liquid sample includes: (a) a capillary pathway having an upstream end and a downstream end and incorporating a reagent system capable of causing agglutination with the component; (b) optionally, a control capillary pathway; (c) a sampling region to which the liquid sample is applied and from which the sample is able to enter the upstream ends of the test and control capillaries; (d) a power source; (e) detection arrangements electrically associated with the power source for detecting the presence of liquid at a downstream region of the capillaries; (f) a display operated by the power source for indicating the result of the test; and (g) a signal processor associated with the power source, detection arrangement and display for evaluating the result of the test and providing the result on the display.Type: ApplicationFiled: September 14, 2012Publication date: March 21, 2013Applicant: PLATFORM DIAGNOSTICS LIMITEDInventors: Damian Joseph Peter BOND, Stephen John MINTER, Timothy John MINTER
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Patent number: 8283182Abstract: A sample testing device for testing for the presence of a component of interest in a liquid sample comprises: (a) at least one capillary pathway which has an upstream end and a downstream end and which incorporates a reagent system capable of causing agglutination with said component to be detected (the test capillary); (b) preferably, but optionally, at least one capillary pathway having an upstream end and a downstream end (the control capillary); (c) a sampling region to which the liquid sample is applied and from which the sample is able to enter the upstream ends of the test capillary(s) and if present the control capillary(s); (d) a power source; (c) detection arrangements electrically associated with said power source for detecting the presence of liquid at a downstream region of said testing capillary(s) and if present the control capillary(s); (f) display means operated by said power source for indicating the result of the test; and (g) signal processing means associated with the power source, detectType: GrantFiled: June 11, 2010Date of Patent: October 9, 2012Assignee: Platform Diagnostics LimitedInventors: Damian Joseph Peter Bond, Stephen John Minter, Timothy John Minter
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Publication number: 20110136257Abstract: A sample testing device for testing for the presence of a component of interest in a liquid sample comprises: (a) at least one capillary pathway which has an upstream end and a downstream end and which incorporates a reagent system capable of causing agglutination with said component to be detected (the test capillary); (b) preferably, but optionally, at least one capillary pathway having an upstream end and a downstream end (the control capillary); (c) a sampling region to which the liquid sample is applied and from which the sample is able to enter the upstream ends of the test capillary(s) and if present the control capillary(s); (d) a power source; (c) detection arrangements electrically associated with said power source for detecting the presence of liquid at a downstream region of said testing capillary(s) and if present the control capillary(s); (f) display means operated by said power source for indicating the result of the test; and (g) signal processing means associated with the power source, detectType: ApplicationFiled: June 11, 2010Publication date: June 9, 2011Applicant: PLATFORM DIAGNOSTICS LIMITEDInventors: Damian Joseph Peter BOND, Stephen John MINTER, Timothy John MINTER
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Publication number: 20100062544Abstract: The invention provides a modified form of saturation assay, which is based on the measurement of a free or unbound labelled reagent fraction (such that there is an increase in signal in the presence of analyte) and employs trapping zones to concentrate said unbound or free labelled fraction to avoid loss of sensitivity. Preferably, the assay is a membrane assay.Type: ApplicationFiled: November 9, 2007Publication date: March 11, 2010Applicant: PLATFORM DIAGNOSTICS LIMITEDInventors: Douglas Robert Evans, Gerald John Allen, Carolyn Jennifer Ruddell
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Publication number: 20090035743Abstract: The present invention provides an agglutination based assay system for determining the presence and/or amount of analyte in a sample comprising a test device having one or more capillary pathways comprising detection regions adapted for non-visual detection of a sample which is releasably engageable with a reader which comprises detection means for detecting the sample at the detection regions in each of said capillary pathways and electronic means for indicating the presence and/or amount of analyte. Also provided are the individual test device and reader components, and an assay method using the system.Type: ApplicationFiled: October 28, 2005Publication date: February 5, 2009Applicant: PLATFORM DIAGNOSTICS LIMITEDInventors: Stephen John Minter, Damien Joseph Peter Bond, Carolyn Jennifer Ruddell
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Publication number: 20080248504Abstract: The invention relates to agglutination assays and related kits, reagents and devices. In particular methods of assaying small analytes having few epitopes are disclosed, by means of using hub moieties to which multiple analytes may be bound by a first epitope, together with a further moiety capable of binding a second analyte epitope and which is also capable of binding to a detectable particle. Stable agglutinated complexes may be so formed, which may used as the basis for various assay formats.Type: ApplicationFiled: November 13, 2006Publication date: October 9, 2008Applicant: Platform Diagnostics LimitedInventors: Carolyn Jennifer Ruddell, Gerald John Allen, Douglas Robert Evans, Elizabeth Burke
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Publication number: 20060194342Abstract: A sample testing device (100) for testing for the presence of a component of interest in a liquid sample comprises: (a) at least one capillary pathway (120) which has an upstream end and a downstream end and which incorporates a reagent system capable of causing agglutination with said component to be detected (the test capillary); (b) preferably, but optionally, at least one capillary pathway (121) having an upstream end and a downstream end (the control capillary); (c) a sampling region (114) to which the liquid sample is applied and from which the sample is able to enter the upstream ends of the test capillary(s) (120) and if present the control capillary(s) (121); (d) a power source (108, 109); (e) detection arrangements (117, 118) electrically associated with said power source (108, 109) for detecting the presence of liquid at a downstream region of said testing capillary(s) (120) and if present the control capillary(s) (121); (f) display means (113) operated by said power source (108, 109) for indicatinType: ApplicationFiled: March 18, 2004Publication date: August 31, 2006Applicant: Platform Diagnostics LimitedInventors: Damian Bond, Stephen Minter, Timothy Minter