Patents by Inventor Jielin Dai

Jielin Dai 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).

  • Publication number: 20220055029
    Abstract: The present invention provides a detection device for sample detection, where the detection device includes a device body and a device cover, the device cover is configured to cover the device body, the device body is spirally connected to the device cover, a signal apparatus is disposed between the device body and the device cover, a completely screwed state exists between the device body and the device cover, and when the device body and the device cover are in the completely screwed state, the signal apparatus makes a sound. The detection device is provided with a two-stage sealing apparatus and the signal apparatus. As the device cover performs covering, a first sealing apparatus first seals the device body and the device cover, and the signal apparatus makes a first sound, to prompt an operator that the detection device has completed primary sealing, which is suitable for short-distance and gentle-vibration transportation after sampling is performed by using the detection device.
    Type: Application
    Filed: August 24, 2020
    Publication date: February 24, 2022
    Inventor: Jielin DAI
  • Patent number: 10772610
    Abstract: The present invention provides a sample collection detector, comprising a sampling device, a detecting device and a communicating device, wherein the sampling device has a sampling chamber and a sample feeding rod, the sample feeding rod is inserted into the sampling chamber to finish sampling; the communicating device has a sample feeding channel that is in communication with the sampling chamber and detecting device, a valve assembly is provided between the sample feeding channel and the sampling chamber, the valve assembly is initially closed, the sample feeding channel is separated from the sampling chamber, the sample feeding rod triggers the valve assembly to open and communicate the sample feeding channel and the sampling chamber.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: September 15, 2020
    Assignee: Hangzhou D2 Technology CO., LTD.
    Inventor: Jielin Dai
  • Publication number: 20180235582
    Abstract: The present invention provides a sample collection detector, comprising a sampling device, a detecting device and a communicating device, wherein the sampling device has a sampling chamber and a sample feeding rod, the sample feeding rod is inserted into the sampling chamber to finish sampling; the communicating device has a sample feeding channel that is in communication with the sampling chamber and detecting device, a valve assembly is provided between the sample feeding channel and the sampling chamber, the valve assembly is initially closed, the sample feeding channel is separated from the sampling chamber, the sample feeding rod triggers the valve assembly to open and communicate the sample feeding channel and the sampling chamber.
    Type: Application
    Filed: February 20, 2018
    Publication date: August 23, 2018
    Inventor: Jielin Dai
  • Patent number: 9352313
    Abstract: A device used to test the analyte in a liquid sample includes a test chamber used to contain test components, a collecting chamber used to collect liquid sample, a piston chamber between the test chamber and the collecting chamber, a piston and an opening. The piston has two positions in the piston chamber, i.e. the first position and the second position. When the piston is in the first position, liquid can flow between the piston cavity and the collecting chamber through the opening; during the piston's move from the first position to the second position, the opening is sealed by the piston, wherein while the opening is sealed by the piston, the liquid is released from the piston cavity to the test chamber. This device can help to precisely quantify a liquid sample, with higher accuracy in the tests and higher comfort during the operations.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: May 31, 2016
    Assignee: Hangzhou Ditu Technology Co., Ltd.
    Inventor: Jielin Dai
  • Publication number: 20150185240
    Abstract: A device used to test the analyte in a liquid sample includes a test chamber used to contain test components, a collecting chamber used to collect liquid sample, a piston chamber between the test chamber and the collecting chamber, a piston and an opening. The piston has two positions in the piston chamber, i.e. the first position and the second position. When the piston is in the first position, liquid can flow between the piston cavity and the collecting chamber through the opening; during the piston's move from the first position to the second position, the opening is sealed by the piston, wherein while the opening is sealed by the piston, the liquid is released from the piston cavity to the test chamber. This device can help to precisely quantify a liquid sample, with higher accuracy in the tests and higher comfort during the operations.
    Type: Application
    Filed: June 27, 2014
    Publication date: July 2, 2015
    Inventor: Jielin Dai
  • Patent number: 9011770
    Abstract: The present invention provides a device for detecting the presence of an analyte in a liquid sample. The device has an opening for introducing the liquid sample into a first chamber for collecting the liquid sample, and a second chamber connected to the first chamber by a passageway and containing a test element. The device also has a third chamber connected to the second chamber by a channel and containing a movable member having first and second positions. The third chamber is divided by the movable member into first and second zones, and the first zone has a vent hole. The movable member is in contact with at least one wall of the third chamber to prevent gas communication between the first and second zones.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: April 21, 2015
    Assignee: Alere Switzerland GmbH
    Inventors: Yuzhang Wu, Haipeng Hu, Jielin Dai, Lijian Gou
  • Patent number: 8871155
    Abstract: A device for detecting the presence or amount of an analyte in a fluid sample and method thereof, comprises a sample collector and a receiving cup for receiving and holding the sample collector within the receiving cup. The sample collector contains a compressible absorbent member for collecting the fluid sample, and has a first position and a second, locked position within the receiving cup. The absorbent member is uncompressed in the first position and is compressed in the second, locked position. The sample collector or the receiving cup has at least one test element having reagents for detecting the presence or amount of the analyte in the fluid sample.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: October 28, 2014
    Assignee: Alere Switzerland GmbH
    Inventors: Yuzhang Wu, Yun Ling, Jielin Dai
  • Patent number: 8071394
    Abstract: The present invention relates to test devices, and in particular devices capable of detecting the presence or absence of an analyte in a sample, such as a liquid sample. Also provided are methods of using such devices for quantitative or qualitative measurement of one or more analytes in a liquid sample.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: December 6, 2011
    Assignee: Alere Switzerland GmbH
    Inventors: Xin Wu, Fei Gao, Jielin Dai, Yinfei Wu
  • Patent number: 8062901
    Abstract: The present invention provides devices, methods, and kits for the collection of a solid or semi-solid sample and analysis for the presence, absence, or quantity of an analyte. The invention provides a collection slide having a first card and a second card. The first card has a sample collection area. The first and second cards have orifices allowing the passage of fluid through the sample collection area, and the cards are hingeably connected to each other. The invention also provides an assay device having a housing with a test element, a results window, and a docking area for receiving and engaging the collection slide. In one embodiment the collection slide and device can be used to detect the presence of fecal occult blood (human hemoglobin) in a stool sample. Many other embodiments are described herein.
    Type: Grant
    Filed: April 30, 2005
    Date of Patent: November 22, 2011
    Assignee: Alere Switzerland GmbH
    Inventors: Jielin Dai, Haipeng Hu, Feier Liao, Weidong Yu, Shaomin Sun
  • Publication number: 20110165024
    Abstract: A device for detecting the presence or amount of an analyte in a fluid sample and method thereof, comprises a sample collector and a receiving cup for receiving and holding the sample collector within the receiving cup. The sample collector contains a compressible absorbent member for collecting the fluid sample, and has a first position and a second, locked position within the receiving cup. The absorbent member is uncompressed in the first position and is compressed in the second, locked position. The sample collector or the receiving cup has at least one test element having reagents for detecting the presence or amount of the analyte in the fluid sample.
    Type: Application
    Filed: March 17, 2011
    Publication date: July 7, 2011
    Applicant: Alere Switzerland GmbH
    Inventors: Yuzhang Wu, Yun Ling, Jielin Dai
  • Publication number: 20090308185
    Abstract: The present invention provides a device (100) for detecting the presence of an analyte in a liquid sample. The device (100) has an opening (115) for introducing the liquid sample into a first chamber (301) for collecting the liquid sample, and a second chamber (601) connected to the first chamber (301) by a passageway (205) and containing a test element. The device also has a third chamber (701) connected to the second chamber (601) by a channel and containing a movable member (311) having first and second positions. The third chamber (701) is divided by the movable member (311) into first (901) and second (902) zones, and the first zone (901) has a vent hole (165). The movable member (311) is in contact with at least one wall of the third chamber (701) to prevent gas communication between the first and second zones (901, 902).
    Type: Application
    Filed: October 20, 2006
    Publication date: December 17, 2009
    Inventors: Yuzhang Wu, Haipeng Hu, Jielin Dai, Lijian Gou
  • Publication number: 20090232702
    Abstract: The present invention relates to test devices, and in particular devices capable of detecting the presence or absence of an analyte in a sample, such as a liquid sample. Also provided are methods of using such devices for quantitative or qualitative measurement of one or more analytes in a liquid sample.
    Type: Application
    Filed: January 26, 2009
    Publication date: September 17, 2009
    Inventors: Xin Wu, Fei Gao, Jielin Dai, Yinfei Wu
  • Publication number: 20090226883
    Abstract: A device for detecting the presence or amount of an analyte in a fluid sample and method thereof, comprises a sample collector and a receiving cup for receiving and holding the sample collector within the receiving cup. The sample collector contains a compressible absorbent member for collecting the fluid sample, and has a first position and a second, locked position within the receiving cup. The absorbent member is uncompressed in the first position and is compressed in the second, locked position. The sample collector or the receiving cup has at least one test element having reagents for detecting the presence or amount of the analyte in the fluid sample.
    Type: Application
    Filed: November 13, 2006
    Publication date: September 10, 2009
    Inventors: Yuzhang Wu, Yun Ling, Jielin Dai
  • Patent number: 7550112
    Abstract: Medical and environmental diagnostic devices are described and claimed. Preferred embodiments feature cup within cup configurations wherein one cup is dedicated, for the most part, to sample collection and another cup is dedicated, for the most part, to assay performance. Communication between the cups is afforded by what is believed to be a unique valve assembly and lid tandem.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: June 23, 2009
    Assignee: Oakville Hong Kong Company Limited
    Inventors: Lijian Gou, Yuzhang Wu, Jielin Dai, Hsiaoho Edward Tung
  • Patent number: 7544324
    Abstract: The present invention provides test devices for detecting an analyte suspected of being present in a liquid sample. The devices contain a reservoir compartment, a test compartment, and a port for a sample collection well. The devices also have a rotatable sample collection well located in the port. The device has an upper chamber for insertion of a sample applicator, an expression plate for wringing out the sample applicator and applying sample to the device, a lower chamber, and an aliquot outlet and a reservoir outlet for the movement of sample through the device. The device also contains test elements for detecting the analyte of interest. By rotating the sample collection well, the operator is able to direct distribution of collected sample in the device. Methods of using the devices and kits containing the devices are also provided.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: June 9, 2009
    Assignee: Oakville Hong Kong Company Limited
    Inventors: Hsiaoho Edward Tung, Yuzhang Wu, Jielin Dai, Ying Yang
  • Publication number: 20090117660
    Abstract: The present invention provides devices, methods, and kits for the collection of a solid or semi-solid sample and analysis for the presence, absence, or quantity of an analyte. The invention provides a collection slide having a first card and a second card. The first card has a sample collection area. The first and second cards have orifices allowing the passage of fluid through the sample collection area, and the cards are hingeably connected to each other. The invention also provides an assay device having a housing with a test element, a results window, and a docking area for receiving and engaging the collection slide. In one embodiment the collection slide and device can be used to detect the presence of fecal occult blood (human hemoglobin) in a stool sample. Many other embodiments are described herein.
    Type: Application
    Filed: April 26, 2006
    Publication date: May 7, 2009
    Applicant: Oakville Hong Kong Co., Limited
    Inventors: Jielin Dai, Haipeng Hu, Feier Liao, Weidong Yu, Shaomin Sun
  • Publication number: 20070128070
    Abstract: The present invention discloses a device for detecting the presence or amount of an analyte in a fluid sample. The device has a sample collector and a receiving cup for receiving and holding the sample collector within the receiving cup. The sample collector contains a compressible absorbent member for collecting the fluid sample, and has a first position and a second, locked position within the receiving cup. The absorbent member is uncompressed in the first position and is compressed and held within the cup in the second, locked position. The sample collector or the receiving cup has at least one test element having reagents for detecting the presence or amount of the analyte in the fluid sample. In one embodiment the test element is in fluid communication with the absorbent member when the sample collector is in the second, locked position. The present invention also discloses a method for detecting the presence or amount of an analyte in a fluid sample using the aforesaid device.
    Type: Application
    Filed: December 1, 2005
    Publication date: June 7, 2007
    Inventors: Yuzhang Wu, Yun Ling, Jielin Dai
  • Publication number: 20070092402
    Abstract: The present invention provides a device for detecting the presence of an analyte in a liquid sample. The device has an opening for introducing the liquid sample into a first chamber for collecting the liquid sample, and a second chamber connected to the first chamber by a passageway and containing a test element. The device also has a third chamber connected to the second chamber by a channel and containing a movable member having first and second positions. The third chamber is divided by the movable member into first and second zones, and the first zone has a vent hole. The movable member is in contact with at least one wall of the third chamber to prevent gas communication between the first and second zones.
    Type: Application
    Filed: October 26, 2005
    Publication date: April 26, 2007
    Inventors: Yuzhang Wu, Haipeng Hu, Jielin Dai, Lijian Gou
  • Publication number: 20060246598
    Abstract: The present invention provides devices, methods, and kits for the collection of a solid or semi-solid sample and analysis for the presence, absence, or quantity of an analyte. The invention provides a collection slide having a first card and a second card. The first card has a sample collection area. The first and second cards have orifices allowing the passage of fluid through the sample collection area, and the cards are hingeably connected to each other. The invention also provides an assay device having a housing with a test element, a results window, and a docking area for receiving and engaging the collection slide. In one embodiment the collection slide and device can be used to detect the presence of fecal occult blood (human hemoglobin) in a stool sample. Many other embodiments are described herein.
    Type: Application
    Filed: April 30, 2005
    Publication date: November 2, 2006
    Inventors: Jielin Dai, Haipeng Hu, Feier Liao, Weidong Yu, Shaomin Sun
  • Patent number: 7114403
    Abstract: The present invention is a device for conveniently collecting and storing liquid samples, as well as applying an aliquot of the sample to a test device, such as a lateral flow immunoassay. The present invention comprises an absorbent swab and a dropper container containing an expression means for expressing the collected sample from the swab. After the collected sample has been expressed into the reservoir of the device, the device is capped. The device can be inverted over a test device, the sides of the reservoir squeezed and an aliquot of the sample applied, in a drop-wise manner, to the sample application well of the test device. The present invention is particularly useful for collecting viscous samples, such as saliva or oral fluid, in a drug of abuse testing setting.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: October 3, 2006
    Assignee: Oakville Hong Kong Co., LTD
    Inventors: Yuchang Wu, Hsiaoho Edward Tung, Huiyan Guo, Fei Gao, Jielin Dai, Haipeng Hu