Patents by Inventor Zhi Jian Chen

Zhi Jian Chen 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).

  • Patent number: 8728053
    Abstract: A method, technique and system is disclosed for the delivery of therapeutic agents and/or into the bulk brain tissues and other parts, tissues and organs of the body, including vasculature. A novel form of coaxial catheter provides a means for implanting an outer tube into the brain, then inserting an inner tube into the outer tube and aligning them such that port holes on both of the tubes will overlap and permit a flux of the therapeutic agent to flow into the brain in such a way as to minimize the effects of trapped air, virtually eliminate backflow of the agent, and avoid the potential for additional damage to the brain since only one surgical placement of the outer tube is needed. Similarly, the method, technique system may be utilized to remove fluids or other medium from the brain, tissues, and organs to minimize the effects of escaped air or negative pressure.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: May 20, 2014
    Assignee: University of Virginia Patent Foundation
    Inventors: William Broaddus, Zhi-Jian Chen, George Gillies
  • Publication number: 20130090556
    Abstract: A method, technique and system is disclosed for the delivery of therapeutic agents and/or into the bulk brain tissues and other parts, tissues and organs of the body, including vasculature. A novel form of coaxial catheter provides a means for implanting an outer tube into the brain, then inserting an inner tube into the outer tube and aligning them such that port holes on both of the tubes will overlap and permit a flux of the therapeutic agent to flow into the brain in such a way as to minimize the effects of trapped air, virtually eliminate backflow of the agent, and avoid the potential for additional damage to the brain since only one surgical placement of the outer tube is needed. Similarly, the method, technique system may be utilized to remove fluids or other medium from the brain, tissues, and organs to minimize the effects of escaped air or negative pressure.
    Type: Application
    Filed: July 2, 2012
    Publication date: April 11, 2013
    Applicant: University of Virginia Patent Foundation
    Inventors: William C. Broaddus, Zhi-Jian Chen, George T. Gillies
  • Patent number: 8226694
    Abstract: A method and means of cranial bone flap fixation that provides, among other things, the re-opening, resetting and/or repositioning of the bone flap during neurosurgical procedures. The instrumentation central to this method and means is MR and CT-visible to aid in imaging-based localization of it. The method and means can also be used in other types of medical procedures where certain kinds of hard or firm tissue fixation is desirable according to the method of the invention.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: July 24, 2012
    Assignee: University of Virginia Patent Foundation
    Inventors: William C. Broaddus, Zhi-Jian Chen, George T. Gillies
  • Patent number: 8211083
    Abstract: A method, technique and system is disclosed for the delivery of therapeutic agents and/or into the bulk brain tissues and other parts, tissues and organs of the body, including vasculature. A novel form of coaxial catheter provides a means for implanting an outer tube into the brain, then inserting an inner tube into the outer tube and aligning them such that port holes on both of the tubes will overlap and permit a flux of the therapeutic agent to flow into the brain in such a way as to minimize the effects of trapped air, virtually eliminate backflow of the agent, and avoid the potential for additional damage to the brain since only one surgical placement of the outer tube is needed. Similarly, the method, technique system may be utilized to remove fluids or other medium from the brain, tissues, and organs to minimize the effects of escaped air or negative pressure.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: July 3, 2012
    Assignees: University of Virginia Patent Foundation, Virginia Commonwealth University Intellectual Property Foundation
    Inventors: William C. Broaddus, Zhi-Jian Chen, George T. Gillies
  • Patent number: 8113883
    Abstract: An electrical card connector (100) includes an insulative housing (2, 4, 6) defining a number of passageways, a number of contacts (12) retained in the passageways and the insulative housing and a metal shield (3, 5, 7) covering the insulative housing. The insulative housing has a base portion (20, 40) and a pair of retaining portions (22, 42, 62) extending forwardly from the base portion. Each retaining portion defines a cavity (24, 44, 45, 63). The metal shield includes a main portion (30) and a number of lateral walls (31) for defining a card receiving room. The metal shield integrally forms a locking portion (34, 54, 55, 75) having a stamped portion (341, 543, 553, 751) therefrom. The stamped portion is received in the cavity to pre-loadingly engage with the retaining portion.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: February 14, 2012
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Zhi-Jian Chen, Zhi-Feng Wang
  • Patent number: 7866998
    Abstract: The electrical card connector (100) has a card receiving space for receiving an electrical card includes an insulative housing (10), a plurality of terminals (20) received in the insulative housing, a metallic shell (30) covered on the insulative housing, and an ejector (50) attached to a lateral side of insulative housing. The insulative housing is disposed on front section of the metallic shell. The ejector includes a base seat (51), a slider (53), a spring (52) and a cam follower (54). The slider is able to slide along a card inserting/ejecting direction. A metallic sheet (514) is assembled to the base seat. The base seat and the metallic sheet form a slot (515), the metallic sheet acts as a bottom wall and one lateral side wall of the slot.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: January 11, 2011
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Zhi-Jian Chen
  • Patent number: 7811106
    Abstract: A card connector comprises an insulating housing having contact receiving slots. An engaging portion is formed on a side of the housing and has a first fixing position and a second fixing position. A plurality of terminals is received in the receiving slots. An ejector comprises a card ejecting plate assembled to the housing and a push bar movable disposed on the engaging portion of the housing and connected with the card ejecting plate. A fixing portion is formed on an internal side of the push bar. The push bar drives the card ejecting plate to move between a card receiving position wherein the fixing portion is located at the first fixing position and a card ejected position wherein the fixing portion is located at the second fixing position.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: October 12, 2010
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Kuo-Lung Lin, Lai-Ang Hu, Zhi-Jian Chen
  • Publication number: 20100221942
    Abstract: An electrical card connector (100) includes an insulative housing (2, 4, 6) defining a number of passageways, a number of contacts (12) retained in the passageways and the insulative housing and a metal shield (3, 5, 7) covering the insulative housing. The insulative housing has a base portion (20, 40) and a pair of retaining portions (22, 42, 62) extending forwardly from the base portion. Each retaining portion defines a cavity (24, 44, 45, 63). The metal shield includes a main portion (30) and a number of lateral walls (31) for defining a card receiving room. The metal shield integrally forms a locking portion (34, 54, 55, 75) having a stamped portion (341, 543, 553, 751) therefrom. The stamped portion is received in the cavity to pre-loadingly engage with the retaining portion.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 2, 2010
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: ZHI-JIAN CHEN, ZHI-FENG WANG
  • Publication number: 20100198137
    Abstract: A method, technique and system is disclosed for the delivery of therapeutic agents and/or into the bulk brain tissues and other parts, tissues and organs of the body, including vasculature. A novel form of coaxial catheter provides a means for implanting an outer tube into the brain, then inserting an inner tube into the outer tube and aligning them such that port holes on both of the tubes will overlap and permit a flux of the therapeutic agent to flow into the brain in such a way as to minimize the effects of trapped air, virtually eliminate backflow of the agent, and avoid the potential for additional damage to the brain since only one surgical placement of the outer tube is needed. Similarly, the method, technique system may be utilized to remove fluids or other medium from the brain, tissues, and organs to minimize the effects of escaped air or negative pressure.
    Type: Application
    Filed: April 15, 2010
    Publication date: August 5, 2010
    Applicant: University of Virginia Patent Foundation
    Inventors: William C. Broaddus, Zhi-Jian Chen, George T. Gillies
  • Patent number: 7727225
    Abstract: A method, technique and system is disclosed for the delivery of therapeutic agents and/or into the bulk brain tissues and other parts, tissues and organs of the body, including vasculature. A novel form of coaxial catheter provides a means for implanting an outer tube into the brain, then inserting an inner tube into the outer tube and aligning them such that port holes on both of the tubes will overlap and permit a flux of the therapeutic agent to flow into the brain in such a way as to minimize the effects of trapped air, virtually eliminate backflow of the agent, and avoid the potential for additional damage to the brain since only one surgical placement of the outer tube is needed. Similarly, the method, technique system may be utilized to remove fluids or other medium from the brain, tissues, and organs to minimize the effects of escaped air or negative pressure.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: June 1, 2010
    Assignee: University of Virginia Patent Foundation
    Inventors: William C. Broaddus, Zhi-Jian Chen, George T. Gillies
  • Publication number: 20100081331
    Abstract: The electrical card connector (100) has a card receiving space for receiving an electrical card includes an insulative housing (10), a plurality of terminals (20) received in the insulative housing, a metallic shell (30) covered on the insulative housing, and an ejector (50) attached to a lateral side of insulative housing. The insulative housing is disposed on front section of the metallic shell. The ejector includes a base seat (51), a slider (53), a spring (52) and a cam follower (54). The slider is able to slide along a card inserting/ejecting direction. A metallic sheet (514) is assembled to the base seat. The base seat and the metallic sheet form a slot (515), the metallic sheet acts as a bottom wall and one lateral side wall of the slot.
    Type: Application
    Filed: September 30, 2009
    Publication date: April 1, 2010
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: ZHI-JIAN CHEN
  • Publication number: 20100042158
    Abstract: A method and means of cranial bone flap fixation that provides, among other things, the re-opening, resetting and/or repositioning of the bone flap during neurosurgical procedures. The instrumentation central to this method and means is MR and CT-visible to aid in imaging-based localization of it. The method and means can also be used in other types of medical procedures where certain kinds of hard or firm tissue fixation is desirable according to the method of the invention.
    Type: Application
    Filed: June 26, 2007
    Publication date: February 18, 2010
    Applicant: UNIVERSITY OF VIRGINIA PATENT FOUNDATION
    Inventors: William C. Broaddus, Zhi-Jian Chen, George T. Gillies
  • Publication number: 20090305567
    Abstract: A card connector comprises an insulating housing having contact receiving slots. An engaging portion is formed on a side of the housing and has a first fixing position and a second fixing position. A plurality of terminals is received in the receiving slots. An ejector comprises a card ejecting plate assembled to the housing and a push bar movable disposed on the engaging portion of the housing and connected with the card ejecting plate. A fixing portion is formed on an internal side of the push bar. The push bar drives the card ejecting plate to move between a card receiving position wherein the fixing portion is located at the first fixing position and a card ejected position wherein the fixing portion is located at the second fixing position.
    Type: Application
    Filed: March 2, 2009
    Publication date: December 10, 2009
    Inventors: Kuo-Lung Lin, Lai-Ang Hu, Zhi-Jian Chen
  • Publication number: 20080218809
    Abstract: Systems and methods are disclosed for provisioning a facsimile (fax) service for a client computer over instant messaging software, services or networks.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 11, 2008
    Inventors: Wen Wu Chen, Zhi Jian Chen, Rui Cao Mu
  • Patent number: 7318734
    Abstract: A switching terminal (1) applied to a detecting equipment includes a carrier strip (10), a movable terminal (13) and a stationary terminal (12) respectively extending from a common edge of the carrier strip; Each of the movable terminal and the stationary terminal has a retaining portion (122, 132), a base section (121, 131) and a contact section (123, 133) connecting to the base, The base section 132 of movable terminal defines a cutout (1324) on an edge thereof adjacent to the stationary terminal.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: January 15, 2008
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Chun Ta Lee, Zhi Jian Chen
  • Publication number: 20060025752
    Abstract: A method, technique and system is disclosed for the delivery of therapeutic agents and/or into the bulk brain tissues and other parts, tissues and organs of the body, including vasculature. A novel form of coaxial catheter provides a means for implanting an outer tube into the brain, then inserting an inner tube into the outer tube and aligning them such that port holes on both of the tubes will overlap and permit a flux of the therapeutic agent to flow into the brain in such a way as to minimize the effects of trapped air, virtually eliminate backflow of the agent, and avoid the potential for additional damage to the brain since only one surgical placement of the outer tube is needed. Similarly, the method, technique system may be utilized to remove fluids or other medium from the brain, tissues, and organs to minimize the effects of escaped air or negative pressure.
    Type: Application
    Filed: July 28, 2005
    Publication date: February 2, 2006
    Inventors: William Broaddus, Zhi-Jian Chen, George Gillies
  • Publication number: 20040183631
    Abstract: A switching terminal (1) applied to a detecting equipment includes a carrier strip (10), a movable terminal (13) and a stationary terminal (12) respectively extending from a common edge of the carrier strip; Each of the movable terminal and the stationary terminal has a retaining portion (122, 132), a base section (121, 131) and a contact section (123, 133) connecting to the base, The base section 132 of movable terminal defines a cutout (1324) on an edge thereof adjacent to the stationary terminal.
    Type: Application
    Filed: March 22, 2004
    Publication date: September 23, 2004
    Inventors: Chun Ta Lee, Zhi Jian Chen
  • Publication number: 20030226805
    Abstract: The wastewater treatment method of the present invention includes introducing an influent water to an oxygen-supply tank for aeration; introducing the oxygen-enriched water from the oxygen-supply tank into the bottom of an activated carbon tank, so that the oxygen-enriched water flows upward and expands the activated carbon bed. When the oxygen-enriched water flows through the activated carbon bed, the microorganisms on the activated carbon particles use the enhanced oxygen concentration to decompose the contaminants, such as COD, BOD, TKN, etc., that are contained in the water or adsorbed on the activated carbon particles. Most of the supernatant liquid in the activated carbon tank is recycled to the oxygen-supply tank for aeration, and a small amount of the liquid is discharged, thereby performing a suitable treatment on wastewater having various qualities by controlling the amount of oxygen supply in the oxygen-supply tank and the recycle ratio of (the oxygen-enriched water)/(the influent water).
    Type: Application
    Filed: June 6, 2002
    Publication date: December 11, 2003
    Applicant: Industrial Technology Research Institute
    Inventors: Pen-Hsien Chi, Zhi-Jian Chen, Wen-Ching Chen, Rung-Yaw Chen, Chie Chien Tseng