Patents Assigned to Chen & Chen, LLC
  • Patent number: 9662652
    Abstract: Provided herein is a sample processing apparatus including a sample-containing vessel and a thermal cycling apparatus, wherein the vessel has at least 3 fluidically isolated segments that are each thermally conductive, compressible, and expandable. The thermal cycling unit is capable of amplifying extracted nucleic acid and has at least a first processing station and a second processing station, each processing station defining a temperature zone, wherein thermal cycling is performed by alternatively transferring the contents of the sample vessel between the at least two processing stations.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: May 30, 2017
    Assignee: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Publication number: 20130040830
    Abstract: A sample testing vessel may include a flexible plastic tube and a self-sealing injection channel. The flexible plastic tube may have a seal defining a first compartment and a second compartment, wherein the seal comprises a pressure gate providing a fluid-tight seal between first and second compartments and opening upon application of a threshold pressure. The injection channel may be normally substantially free of fluid and capable of fluid communication with the tubule.
    Type: Application
    Filed: October 12, 2012
    Publication date: February 14, 2013
    Applicant: CHEN & CHEN, LLC
    Inventor: Chen & Chen, LLC
  • Publication number: 20120276532
    Abstract: A sample processing device may include an opening, a sample pretreatment unit, a thermal cycling reaction unit, and a detection unit.
    Type: Application
    Filed: April 3, 2012
    Publication date: November 1, 2012
    Applicant: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Patent number: 8148116
    Abstract: A sample processing device may include an opening, a sample pretreatment unit, a thermal cycling reaction unit, and a detection unit.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: April 3, 2012
    Assignee: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Publication number: 20110207121
    Abstract: A sample processing device may include an opening, a sample pretreatment unit, a thermal cycling reaction unit, and a detection unit.
    Type: Application
    Filed: May 2, 2011
    Publication date: August 25, 2011
    Applicant: CHEN & CHEN, LLC
    Inventor: Shuqi Chen
  • Patent number: 7935504
    Abstract: A thermal cycling method may include adding a sample to a sample vessel, placing the sample vessel into a thermal cycler having a processing unit with three processing stations, compressing the sample vessel with the first compression member, transferring energy to the sample with the second energy transfer element, transferring energy to the sample with the third energy transfer element, compressing the sample vessel with the third compression member, and transferring energy to the sample with the first energy transfer element.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: May 3, 2011
    Assignee: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Publication number: 20110064613
    Abstract: A sample testing vessel may include a flexible plastic tube and a self-sealing injection channel. The flexible plastic tube may have a seal defining a first compartment and a second compartment, wherein the seal comprises a pressure gate providing a fluid-tight seal between first and second compartments and opening upon application of a threshold pressure. The injection channel may be normally substantially free of fluid and capable of fluid communication with the tubule.
    Type: Application
    Filed: November 16, 2010
    Publication date: March 17, 2011
    Applicant: CHEN & CHEN, LLC
    Inventor: Shuqi Chen
  • Patent number: 7833489
    Abstract: A sample testing system may include a vessel comprising at least two flexible compartments and a self-sealing injection channel. The injection channel may be capable of (a) being in fluid communication with at least one of the flexible compartments, and (b) being pierced by a needle in fluid communication with a reagent reservoir. The system may further include a housing, a cavity in the housing, so sized and shaped to receive the vessel, at least one contact member, and a sensor to sense a condition of a fluid sample in the vessel and to generate an output signal indicative of that condition. The contact member may be so positioned as to be engageable with one of the flexible compartments when the vessel is in the cavity and as to compress the engaged flexible compartment, thereby driving fluid flow from the engaged flexible compartment to the other of the at least two compartments of the vessel.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: November 16, 2010
    Assignee: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Patent number: 7799521
    Abstract: A device for processing a biological sample includes a processing unit having at least one opening to receive a sample vessel and a plurality of processing stations positioned along the opening. The processing stations each have a compression member adapted to compress the sample vessel within the opening and thereby move a substance within the sample vessel among the processing stations. An energy transfer element can be coupled to one or more of the processing stations for transferring thermal energy to the content at a processing station.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: September 21, 2010
    Assignee: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Publication number: 20080145275
    Abstract: A sample testing system may include a vessel comprising at least two flexible compartments and a self-sealing injection channel. The injection channel may be capable of (a) being in fluid communication with at least one of the flexible compartments, and (b) being pierced by a needle in fluid communication with a reagent reservoir. The system may further include a housing, a cavity in the housing, so sized and shaped to receive the vessel, at least one contact member, and a sensor to sense a condition of a fluid sample in the vessel and to generate an output signal indicative of that condition. The contact member may be so positioned as to be engageable with one of the flexible compartments when the vessel is in the cavity and as to compress the engaged flexible compartment, thereby driving fluid flow from the engaged flexible compartment to the other of the at least two compartments of the vessel.
    Type: Application
    Filed: February 25, 2008
    Publication date: June 19, 2008
    Applicant: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Patent number: 7337072
    Abstract: A sample testing system may include a housing, a cavity in the housing to receive a chamber, two contact members, and a sensor. The contact members may be positioned to be engageable with respective portions of the chamber inserted in the cavity, and to compress those respective portions, thereby driving fluid flow. A sample testing system may include a housing, a cavity in the housing to receive a chamber, at least one contact member, and a sensor. The at least one contact member may be positioned to be engageable with a first segment of the chamber when the chamber is in the cavity, and to compress the first segment, thereby defining a gap of the first segment of the chamber and a reservoir in at least a second segment of the chamber.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: February 26, 2008
    Assignee: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Publication number: 20060154341
    Abstract: A sample vessel for holding a sample may include a sample containing portion having at least one pressure gate disposed within the sample containing portion to divide the sample containing portion into a plurality of segments. At least one segment of the sample containing portion may have a wall constructed of a flexible material permitting substantial flattening of the segment of the sample containing portion.
    Type: Application
    Filed: November 15, 2005
    Publication date: July 13, 2006
    Applicant: Chen & Chen LLC
    Inventor: Shuqi Chen
  • Patent number: 6964862
    Abstract: A device for processing a biological sample includes a processing unit having at least one opening to receive a sample vessel and a plurality of processing stations positioned along the opening. The processing stations each have a compression member adapted to compress the sample vessel within the opening and thereby move a substance within the sample vessel among the processing stations. An energy transfer element can be coupled to one or more of the processing stations for transferring thermal energy to the content at a processing station.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: November 15, 2005
    Assignee: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Patent number: 6896519
    Abstract: A mouthpad for cleaning teeth and oral transmucosal drug delivery has a U-shaped plate sized to cover substantially only the biting surfaces of upper and lower teeth of a human jaw. The plate is positioned between the upper teeth and lower teeth such that when the teeth are rinsed with a liquid, the liquid flows primarily through the crevices between individual teeth and physically detaches the adhering residue within. Alternatively, using fluids containing drugs for rinsing while biting on the plate can deliver drugs through the oral mucosa. A method of cleaning teeth and delivering drugs through oral mucosa using a plate positioned between the upper and lower teeth is also disclosed.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: May 24, 2005
    Assignee: Chen & Chen, LLC
    Inventors: Lingjun Chen, Shuqi Chen
  • Publication number: 20050019875
    Abstract: A device for processing a biological sample includes a processing unit having at least one opening to receive a sample vessel and a plurality of processing stations positioned along the opening. The processing stations each have a compression member adapted to compress the sample vessel within the opening and thereby move a substance within the sample vessel among the processing stations. An energy transfer element can be coupled to one or more of the processing stations for transferring thermal energy to the content at a processing station.
    Type: Application
    Filed: August 16, 2004
    Publication date: January 27, 2005
    Applicant: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Publication number: 20040223878
    Abstract: A sample testing system may include a housing, a cavity in the housing to receive a chamber, two contact members, and a sensor. The contact members may be positioned to be engageable with respective portions of the chamber inserted in the cavity, and to compress those respective portions, thereby driving fluid flow. A sample testing system may include a housing, a cavity in the housing to receive a chamber, at least one contact member, and a sensor. The at least one contact member may be positioned to be engageable with a first segment of the chamber when the chamber is in the cavity, and to compress the first segment, thereby defining a gap of the first segment of the chamber and a reservoir in at least a second segment of the chamber.
    Type: Application
    Filed: June 8, 2004
    Publication date: November 11, 2004
    Applicant: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Patent number: 6780617
    Abstract: A device for processing a biological sample includes a processing unit having at least one opening to receive a sample vessel and a plurality of processing stations positioned along the opening. The processing stations each have a compression member adapted to compress the sample vessel within the opening and thereby move the sample within the sample vessel among the processing stations. An energy transfer element can be coupled to one or more of the processing stations for transferring thermal energy to the sample at a processing station. The device can be used for PCR processing of nucleic acid samples. A sample vessel of the present invention can be a tubule flow-chamber having a plurality of segments separated by pressure gates. The sample vessel minimizes sample handling by providing a closed tubule in which distinct processing steps can be carried out in each of the segments of the tubule.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: August 24, 2004
    Assignee: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Patent number: 6748332
    Abstract: A sample testing system has a chamber sealing apparatus adapted to receive a chamber containing a fluid sample material and to seal portions of a chamber into segments. A reagent injector cartridge actuator is adapted to receive a reagent injector cartridge having at least one needle in fluid communication with a reagent reservoir, and to move a reagent injector cartridge to inject a quantity of reagent into a segment of a chamber. In certain preferred embodiments, a flow control device induces a flow of sample in a segment. A sensor generates a signal corresponding to a condition of the mixture.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: June 8, 2004
    Assignee: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Publication number: 20020049557
    Abstract: A sample testing system has a chamber sealing apparatus adapted to receive a chamber containing a fluid sample material and to seal portions of a chamber into segments. A reagent injector cartridge actuator is adapted to receive a reagent injector cartridge having at least one needle in fluid communication with a reagent reservoir, and to move a reagent injector cartridge to inject a quantity of reagent into a segment of a chamber. In certain preferred embodiments, a flow control device induces a flow of sample in a segment. A sensor generates a signal corresponding to a condition of the mixture.
    Type: Application
    Filed: July 20, 2001
    Publication date: April 25, 2002
    Applicant: Chen & Chen, LLC
    Inventor: Shuqi Chen
  • Patent number: 6318191
    Abstract: A sample testing system has a chamber sealing, apparatus adapted to receive a chamber containing a fluid sample material and to seal portions of a chamber into segments. A reagent injector cartridge actuator is adapted to receive a reagent injector cartridge having at least one needle in fluid communication with a reagent reservoir, and to move a reagent injector cartridge to inject a quantity of reagent into a segment of a chamber. In certain preferred embodiments, a flow control device induces a flow of sample in a segment. A sensor generates a signal corresponding to a condition of the mixture.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: November 20, 2001
    Assignee: Chen & Chen, LLC
    Inventor: Shuqi Chen