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).
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Patent number: 8728053Abstract: 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: GrantFiled: July 2, 2012Date of Patent: May 20, 2014Assignee: University of Virginia Patent FoundationInventors: William Broaddus, Zhi-Jian Chen, George Gillies
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Publication number: 20130090556Abstract: 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: ApplicationFiled: July 2, 2012Publication date: April 11, 2013Applicant: University of Virginia Patent FoundationInventors: William C. Broaddus, Zhi-Jian Chen, George T. Gillies
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Patent number: 8226694Abstract: 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: GrantFiled: June 26, 2007Date of Patent: July 24, 2012Assignee: University of Virginia Patent FoundationInventors: William C. Broaddus, Zhi-Jian Chen, George T. Gillies
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Patent number: 8211083Abstract: 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: GrantFiled: April 15, 2010Date of Patent: July 3, 2012Assignees: University of Virginia Patent Foundation, Virginia Commonwealth University Intellectual Property FoundationInventors: William C. Broaddus, Zhi-Jian Chen, George T. Gillies
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Patent number: 8113883Abstract: 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: GrantFiled: February 26, 2010Date of Patent: February 14, 2012Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Zhi-Jian Chen, Zhi-Feng Wang
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Patent number: 7866998Abstract: 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: GrantFiled: September 30, 2009Date of Patent: January 11, 2011Assignee: Hon Hai Precision Ind. Co., Ltd.Inventor: Zhi-Jian Chen
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Patent number: 7811106Abstract: 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: GrantFiled: March 2, 2009Date of Patent: October 12, 2010Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Kuo-Lung Lin, Lai-Ang Hu, Zhi-Jian Chen
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Publication number: 20100221942Abstract: 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: ApplicationFiled: February 26, 2010Publication date: September 2, 2010Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: ZHI-JIAN CHEN, ZHI-FENG WANG
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Publication number: 20100198137Abstract: 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: ApplicationFiled: April 15, 2010Publication date: August 5, 2010Applicant: University of Virginia Patent FoundationInventors: William C. Broaddus, Zhi-Jian Chen, George T. Gillies
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Patent number: 7727225Abstract: 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: GrantFiled: July 28, 2005Date of Patent: June 1, 2010Assignee: University of Virginia Patent FoundationInventors: William C. Broaddus, Zhi-Jian Chen, George T. Gillies
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Publication number: 20100081331Abstract: 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: ApplicationFiled: September 30, 2009Publication date: April 1, 2010Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: ZHI-JIAN CHEN
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Publication number: 20100042158Abstract: 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: ApplicationFiled: June 26, 2007Publication date: February 18, 2010Applicant: UNIVERSITY OF VIRGINIA PATENT FOUNDATIONInventors: William C. Broaddus, Zhi-Jian Chen, George T. Gillies
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Publication number: 20090305567Abstract: 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: ApplicationFiled: March 2, 2009Publication date: December 10, 2009Inventors: Kuo-Lung Lin, Lai-Ang Hu, Zhi-Jian Chen
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Publication number: 20080218809Abstract: Systems and methods are disclosed for provisioning a facsimile (fax) service for a client computer over instant messaging software, services or networks.Type: ApplicationFiled: March 8, 2007Publication date: September 11, 2008Inventors: Wen Wu Chen, Zhi Jian Chen, Rui Cao Mu
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Patent number: 7318734Abstract: 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: GrantFiled: March 22, 2004Date of Patent: January 15, 2008Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Chun Ta Lee, Zhi Jian Chen
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Publication number: 20060025752Abstract: 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: ApplicationFiled: July 28, 2005Publication date: February 2, 2006Inventors: William Broaddus, Zhi-Jian Chen, George Gillies
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Publication number: 20040183631Abstract: 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: ApplicationFiled: March 22, 2004Publication date: September 23, 2004Inventors: Chun Ta Lee, Zhi Jian Chen
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Publication number: 20030226805Abstract: 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: ApplicationFiled: June 6, 2002Publication date: December 11, 2003Applicant: Industrial Technology Research InstituteInventors: Pen-Hsien Chi, Zhi-Jian Chen, Wen-Ching Chen, Rung-Yaw Chen, Chie Chien Tseng