Patents Assigned to Cytek Biosciences, Inc.
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Patent number: 11169076Abstract: In one embodiment, a flow cytometer is disclosed having a compact light detection module. The compact light detection module includes an image array with a transparent block, a plurality of micro-mirrors in a row coupled to a first side of the transparent block, and a plurality of filters in a row coupled to a second side of the transparent block opposite the first side. Each of the plurality of filters reflects light to one of the plurality of micro-mirrors and passes light of a differing wavelength range and each of the plurality of micro-mirrors reflects light to one of the plurality of filters, such that incident light into the image array zigzags back and forth between consecutive filters of the plurality of filters and consecutive micro-mirrors of the plurality of micro-mirrors. A radius of curvature of each of the plurality of micro-mirrors images the fiber aperture onto the odd filters and collimates the light beam on the even filters.Type: GrantFiled: July 25, 2017Date of Patent: November 9, 2021Assignee: Cytek Biosciences, Inc.Inventors: Ming Yan, Yung-Chieh Hsieh, David Vrane, Eric Chase
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Patent number: 11169075Abstract: A flow-cytometer has an excitation light source generating an excitation light that excites one or more bio-cells in a bio-sample carried by a flow path to luminesce. The flow-cytometer includes a spectrum dispersive element that disperses the luminescent light generated by the bio-sample into a photo-detector array. The flow-cytometer further includes a digital signal processor (DSP) that receives signals from the photo-detector array and generates a self-triggering signal based on the luminescent light generated by the bio-cells in bio-sample. The self-triggering signal triggers data capture in the DSP to improve synchronization with the data generated from signals received from the photo-detector array.Type: GrantFiled: December 10, 2015Date of Patent: November 9, 2021Assignee: Cytek Biosciences, Inc.Inventor: Wenbin Jiang
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Patent number: 11131618Abstract: In some embodiments, a smart flow cytometer includes a monitoring system to monitor differing operational parameters of the smart flow cytometer to detect an advanced failure of components and an advanced need for maintenance. In others, a smart flow cytometer includes a quality control system including a reservoir of quality control beads to periodically run a validation test with the quality control beads in order to determine the ability of the flow cytometer to generate quality data output from a plurality of light detectors. In some embodiments, a plurality of smart flow cytometers are coupled into communication with a computer communication network; a central repair server system is coupled into communication with the computer communication network and the plurality of smart flow cytometers; wherein each of the plurality of smart flow cytometers includes a monitoring system coupled to monitor differing operational parameters of the smart flow cytometer for possible failure.Type: GrantFiled: August 10, 2018Date of Patent: September 28, 2021Assignee: Cytek Biosciences, Inc.Inventors: Janine Jiang, David Vrane
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Patent number: 11029243Abstract: In one embodiment, a flow cytometer is disclosed having a compact light detection module. The compact light detection module includes an image array with a transparent block, a plurality of micro-mirrors in a row coupled to a first side of the transparent block, and a plurality of filters in a row coupled to a second side of the transparent block opposite the first side. Each of the plurality of filters reflects light to one of the plurality of micro-mirrors and passes light of a differing wavelength range and each of the plurality of micro-mirrors reflects light to one of the plurality of filters, such that incident light into the image array zigzags back and forth between consecutive filters of the plurality of filters and consecutive micro-mirrors of the plurality of micro-mirrors. A radius of curvature of each of the plurality of micro-mirrors images the fiber aperture onto the odd filters and collimates the light beam on the even filters.Type: GrantFiled: July 25, 2017Date of Patent: June 8, 2021Assignee: Cytek Biosciences, Inc.Inventors: Ming Yan, Yung-Chieh Hsieh, David Vrane, Eric Chase
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Patent number: 10871438Abstract: A system, method, and apparatus are provided for flow cytometry. In one example, the flow cytometry system includes dual laser devices and dual scatter channels to measure velocity of particles in a core stream of sample fluid. The total flow rate of the sample fluid and the sheath fluid around the sample fluid is controlled, and thus held constant, by a feedback control system controlling a vacuum pump based on differential pressure across ends of a flow channel in the flow cell. A stepper flow control valves are disclosed that apply a physical fluid resistance to a flow of sheath fluid in the flow cytometer. The physical fluid resistance regulates a flow rate of the sheath fluid and thereby regulates a flow rate of sample fluid in the flow cytometer.Type: GrantFiled: November 19, 2017Date of Patent: December 22, 2020Assignee: Cytek Biosciences, Inc.Inventor: David Vrane
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Patent number: 10788411Abstract: A system, method, and apparatus are provided for cytometry with dual laser beams. In one example, the method includes directing an incident light beam from a source to enter an optical waveplate; polarizing the incident light beam into a polarized light beam in response to the incident light beam entering through the optical waveplate; directing the polarized light beam to enter a birefringent crystal; separating the polarized light beam into an ordinary light beam and an extraordinary light beam in response to the polarized light beam entering the birefringent crystal; directing the ordinary light beam and the extraordinary light beam to enter a lens; focusing the ordinary light beam and the extraordinary light beam into dual light beams separated by a beam displacement; and coupling the dual light beams to form a sample region having substantially uniform light intensity to analyze moving particles in the particle analyzer.Type: GrantFiled: April 21, 2017Date of Patent: September 29, 2020Assignee: Cytek Biosciences, Inc.Inventors: Ming Yan, Eric Chase, Yung-Chieh Hsieh
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Patent number: 10739245Abstract: A system, an apparatus, and a method are provided for a modular flow cytometer with a compact size. In one embodiment, the modular flow cytometry system includes the following: a laser system for emitting laser beams; a flow cell assembly positioned to receive the laser beams at an interrogation region of a fluidics stream where fluoresced cells scatter the laser beams into fluorescent light; a fiber assembly positioned to collect the fluorescent light; and a grating system including a dispersive element and a receiver assembly, wherein the dispersive element is positioned to receive the fluorescent light from the fiber assembly and to direct spectrally dispersed light toward the receiver assembly.Type: GrantFiled: April 26, 2017Date of Patent: August 11, 2020Assignee: Cytek Biosciences, Inc.Inventors: David Vrane, Ming Yan, Eric Chase, Wenbin Jiang
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Patent number: 10724939Abstract: A disposable rapid cell sorter comprises a microfluidic chip with electrodes and sorts biological cells of interest though a magnetic field and an electric field based on biological cell functional antibody bonded magnetic beads and luminescent labeling.Type: GrantFiled: June 20, 2016Date of Patent: July 28, 2020Assignee: Cytek Biosciences, Inc.Inventor: Wenbin Jiang
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Patent number: 10436697Abstract: A system, method, and apparatus are provided for flow cytometry. In one example, the flow cytometry system includes dual laser devices and dual scatter channels to measure velocity of particles in a core stream of sample fluid. The total flow rate of the sample fluid and the sheath fluid around the sample fluid is controlled, and thus held constant, by a feedback control system controlling a vacuum pump based on differential pressure across ends of a flow channel in the flow cell.Type: GrantFiled: November 19, 2017Date of Patent: October 8, 2019Assignee: Cytek Biosciences, Inc.Inventor: David Vrane