Patents by Inventor Paul Randall Stoddart
Paul Randall Stoddart has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11946570Abstract: A fluid check-valve for venting gas from a fluidic system comprises a retention body defining a fluid aperture having an upstream side and a downstream side, a hydrophilic porous material held by the retention body and disposed to cover the fluid aperture, and a hydrophobic porous material held by the retention body and disposed to cover the fluid aperture and adjacent the hydrophilic porous material. One face of the hydrophilic porous material is in fluid communication with the upstream side of the aperture, and one face of the hydrophobic porous material is in fluid communication with the downstream side of the aperture. The hydrophilic porous material is configured to retain liquid from the upstream side to hinder passage of gas from the downstream side to the upstream side, and the hydrophobic porous material is configured to hinder passage of liquid from the upstream side to the downstream side.Type: GrantFiled: August 28, 2020Date of Patent: April 2, 2024Assignee: Haemograph Pty LtdInventors: Steve Michaël Béguin, Alexander Samuel Lubansky, Jonathon Luke Miegel, Paul Randall Stoddart
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Publication number: 20220260181Abstract: A fluid check-valve for venting gas from a fluidic system comprises a retention body defining a fluid aperture having an upstream side and a downstream side, a hydrophilic porous material held by the retention body and disposed to cover the fluid aperture, and a hydrophobic porous material held by the retention body and disposed to cover the fluid aperture and adjacent the hydrophilic porous material. One face of the hydrophilic porous material is in fluid communication with the upstream side of the aperture, and one face of the hydrophobic porous material is in fluid communication with the downstream side of the aperture. The hydrophilic porous material is configured to retain liquid from the upstream side to hinder passage of gas from the downstream side to the upstream side, and the hydrophobic porous material is configured to hinder passage of liquid from the upstream side to the downstream side.Type: ApplicationFiled: August 28, 2020Publication date: August 18, 2022Applicant: Haemograph Pty LtdInventors: Steve Michaël BÉGUIN, Alexander Samuel LUBANSKY, Jonathon Luke MIEGEL, Paul Randall STODDART
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Publication number: 20220257925Abstract: Disclosed is a method for stimulating neural tissue, where the neural tissue includes one or more neurons genetically modified to express a light-sensitive protein. The method comprises applying a light stimulus and an electrical stimulus to the neural tissue, thereby triggering membrane depolarisation in at least one of the neurons. Also disclosed is an apparatus for applying the disclosed method. The apparatus includes a light-stimulation device for selectively applying a light stimulus and an electrical-stimulation device for selectively applying an electrical stimulus to the neural tissue.Type: ApplicationFiled: June 26, 2020Publication date: August 18, 2022Inventors: Rachael Scott-Young, James Fallon, Andrew Wise, Alexander Thompson, Paul Randall Stoddart, William Lloyd Hart, Karina Brady
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Patent number: 11156555Abstract: The present application discloses a spectroscopy probe for a Raman spectroscopy system, and methods for preparing filters for the probe. A method for forming an SERS substrate which can optionally be used with the probe is also described. The spectroscopy probe is formed using a double-clad optical fibre probe tip, the double-clad optical fibre (DCF) having a single mode core, multimode inner cladding, and outer cladding, and a micro-filter fixed to the distal end of the optical fibre probe tip. The micro-filter has a short pass or band pass filter configured to align with the DCF core to filter silica Raman background generated by laser excitation in the single mode core, and a long pass filter configured to suppress Rayleigh scattering from the sample while allowing Raman scattered wavelengths to be transmitted through the inner cladding.Type: GrantFiled: January 25, 2019Date of Patent: October 26, 2021Assignees: Swinburne University of Technology, Vanderbilt UniversityInventors: Md Abdullah Al Mamun, Paul Randall Stoddart, Anita Mahadevan-Jansen, Nerida Anne Cole
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Publication number: 20210041366Abstract: The present application discloses a spectroscopy probe for a Raman spectroscopy system, and methods for preparing filters for the probe. A method for forming an SERS substrate which can optionally be used with the probe is also described. The spectroscopy probe is formed using a double-clad optical fibre probe tip, the double-clad optical fibre (DCF) having a single mode core, multimode inner cladding, and outer cladding, and a micro-filter fixed to the distal end of the optical fibre probe tip. The micro-filter has a short pass or band pass filter configured to align with the DCF core to filter silica Raman background generated by laser excitation in the single mode core, and a long pass filter configured to suppress Rayleigh scattering from the sample while allowing Raman scattered wavelengths to be transmitted through the inner cladding.Type: ApplicationFiled: January 25, 2019Publication date: February 11, 2021Applicant: Swinburne University of TechnologyInventors: Md Abdullah Al Mamun, Paul Randall Stoddart, Anita Mahadevan-Jansen, Nerida Anne Cole
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Patent number: 9717446Abstract: A method for non-invasive determination of oxygen saturation of blood within a deep vascular structure of a human or animal patient comprising locating on skin of the patient in a vicinity of the deep vascular structure of interest emitter and receiver elements of a light oximeter device, wherein optimal location of said elements is achieved through matching of a plethysmography trace obtained from the oximeter device to known plethysmography characteristics of the deep vascular structure of interest, wherein the emitter element emits light at wavelengths of from about 1045 nm to about 1055 nm and from about 1085 nm to about 1095 nm, and wherein oxygen saturation is determined from a ratio of light absorbed at these two wavelengths by haemoglobin in blood within the vascular structure of interest.Type: GrantFiled: July 8, 2011Date of Patent: August 1, 2017Assignee: ST. VINCENT'S HOSPITAL (MELBOURNE) LIMITEDInventors: Barry Dixon, Paul Randall Stoddart
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Publication number: 20130172703Abstract: A method for non-invasive determination of oxygen saturation of blood within a deep vascular structure of a human or animal patient comprising locating on skin of the patient in a vicinity of the deep vascular structure of interest emitter and receiver elements of a light oximeter device, wherein optimal location of said elements is achieved through matching of a plethysmography trace obtained from the oximeter device to known plethysmography characteristics of the deep vascular structure of interest, wherein the emitter element emits light at wavelengths of from about 1045 nm to about 1055 nm and from about 1085 nm to about 1095 nm, and wherein oxygen saturation is determined from a ratio of light absorbed at these two wave-lengths by haemoglobin in blood within the vascular structure of interest.Type: ApplicationFiled: July 8, 2011Publication date: July 4, 2013Applicant: St. Vincent's Hospital (Melbourne) LimitedInventors: Barry Dixon, Paul Randall Stoddart
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Patent number: 7350972Abstract: A temperature sensing method in which pulses of optical radiation are launched by a laser diode (11) into an optical fibre (14) and optical radiation backscattered from the fibre is detected, the method comprising passing the backscattered radiation through a single optical filter (15) whereby a first signal is recorded at the anti-Stokes Raman wavelength from a signal launched by the laser diode in a laser mode and a second signal is recorded at the Rayleigh wavelength from a signal launched by the laser diode in a light emitting diode mode, and a comparison is made of the two signals to provide an indication of temperature.Type: GrantFiled: September 29, 2003Date of Patent: April 1, 2008Inventors: Peter John Seebacher, Ian Keith Hook, Paul Randall Stoddart