Patents by Inventor Tzer-Ming Chen
Tzer-Ming 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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Publication number: 20160265024Abstract: A lactate dehydrogenase detector, which is used to detect a content of lactate dehydrogenase in a biological sample, comprises a substrate, an electrode assembly, a hydrophobic insulation layer, a cover and a reagent-containing membrane. The electrode assembly is disposed on the substrate and including a working electrode and a reference electrode. The hydrophobic insulation layer is arranged over the substrate and has a notch. The cover hoods the notch and cooperates with the substrate to form a sample channel accommodating the reagent-containing membrane. The reagent-containing membrane is made of materials selected from a group consisting of a lactic acid, nicotinamide adenine dinucleotide (NAD), diaphorase, and potassium ferricyanide. A bioelectrochemical reaction between the reagent-containing membrane and the lactate dehydrogenase induces an electrical signal variation in the electrode assembly, which indicates the content of the lactate dehydrogenase.Type: ApplicationFiled: March 9, 2015Publication date: September 15, 2016Inventors: Yen-Yuan SHEN, Chi-Yang PENG, Tzer-Ming CHEN
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Publication number: 20160109400Abstract: A sensor for detecting glucose of rhizome plants comprises a substrate, an electrode module, a hydrophobic insulating layer and a cover. The electrode module is arranged on the substrate and includes a measurement portion and a connection section connected with the measurement portion. The hydrophobic insulating layer is disposed on the substrate to cover the measurement portion and the connection section and includes an opening revealing the measurement portion. The cover is disposed on the opening to form a specimen channel between the cover and the substrate. The measurement portion is arranged in the specimen channel. The electrode module includes a working electrode and a reference electrode opposite to the working electrode. The measurement portion of the working electrode has a first exposed region with an area of 4-6 mm2 in the specimen channel. Thereby, the present invention can detect the glucose concentrations of juice samples of rhizome plants.Type: ApplicationFiled: October 21, 2014Publication date: April 21, 2016Inventors: Yen-Yuan SHEN, Chi-Yang PENG, Tzer-Ming CHEN
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Patent number: 7806859Abstract: A safety lancet for taking blood has a hollow barrel with two first slots and two second slots and a detachable needle hub. The needle hub is mounted in the barrel and has a moving base with a needle near a proximal end and a positioning base near a distal end. The positioning base detachably connects to the moving base and has a push button and two stopping resilient elements protruding symmetrically from an outer surface of the positioning base and protruding in the first slots before the push button being pushed and protruding in the second slots after the push button being pushed, so the position base can not move backward. Therefore, medical personnel are able to distinguish easily if the lancet has been used or not.Type: GrantFiled: January 24, 2008Date of Patent: October 5, 2010Assignee: Eumed Biotechnology Co., Ltd.Inventors: Cherng-Jyh Lee, Tzer-Ming Chen
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Publication number: 20090192456Abstract: A safety syringe for taking blood has a hollow barrel with two first slots and two second slots and a detachable needle hub. The needle hub is mounted in the barrel and has a moving base with a needle near a proximal end and a positioning base near a distal end. The positioning base detachably connects to the moving base and has a push button and two stopping resilient elements protruding symmetrically from an outer surface of the positioning base and protruding in the first slots before the push button being pushed and protruding in the second slots after the push button being pushed, so the position base can not move backward. Therefore, medical personnel are able to distinguish easily if the syringe has been used or not.Type: ApplicationFiled: January 24, 2008Publication date: July 30, 2009Inventors: Cherng-Jyh Lee, Tzer-Ming Chen
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Patent number: 7491365Abstract: A bio reader includes a casing defined therein a receiving space to receive therein a circuit board, a monitor electrically connected to the circuit board and a strip connector electrically connected to the circuit board for receiving therein a strip. The strip connector has a base mounted in the casing, a push movably connected to the base and having a ridge formed thereon for abutment of a strip on top of the push and an extension extending into the base and a retracting finger securely connected to the push and adapted to be slidably mounted on a side of the casing such that movement of the retracting finger is able to drive the push to move such that the strip on top of the push is also moved.Type: GrantFiled: September 12, 2005Date of Patent: February 17, 2009Assignee: Eumed Biotechnology Co., Ltd.Inventors: Lu-Hung Yang, Tzer-Ming Chen
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Patent number: 7452366Abstract: A safety lancet device has a casing, a driver assembly and a needle hub with a needle. The driver assembly and the needle hub are mounted within the casing. The driver assembly comprises a container, a pressing unit, a controller, a pushing unit and a resilient unit. The needle hub is controlled by the driver assembly to make the needle momentarily protrude. After the needle is used, the location of the driver assembly keeps the needle from protruding. When a new needle hub replaces the used needle hub, the driver assembly will return to the original location before use and can drive the needle momentarily from the casing. Users will not forget to change the used needle. Furthermore, the safety lancet device will decrease the danger of infection.Type: GrantFiled: May 6, 2004Date of Patent: November 18, 2008Assignee: Eumed Biotechnology Co., Ltd.Inventors: Tzer-Ming Chen, Fu-Yuan Li
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Publication number: 20070161960Abstract: A lancet device has a needle assembly and a needle carrier. The needle assembly has a casing, a needle hub, a retracting unit and a limit unit. The needle hub with a needle is mounted in the casing. The retracting unit and the limit unit connect to the needle hub to limit the needle hub to move. The lancet carrier has a housing, a pushing rod, a spring and a cap. The housing connects the needle assembly and has a pressing unit. The pushing rod is mounted in the housing and abuts with the needle hub after pushing the pressing unit to release the force of the spring so the needle protrudes from the needle assembly. After pressing the cap, the needle assembly releases from the needle carrier. Therefore, the new needle assembly can be mounted in the lancet carrier to prick again.Type: ApplicationFiled: January 12, 2006Publication date: July 12, 2007Inventors: Yen-Hui Chen, Fu-Yuan Li, Tzer-Ming Chen
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Publication number: 20070059958Abstract: A bio reader includes a casing defined therein a receiving space to receive therein a circuit board, a monitor electrically connected to the circuit board and a strip connector electrically connected to the circuit board for receiving therein a strip. The strip connector has a base mounted in the casing, a push movably connected to the base and having a ridge formed thereon for abutment of a strip on top of the push and an extension extending into the base and a retracting finger securely connected to the push and adapted to be slidably mounted on a side of the casing such that movement of the retracting finger is able to drive the push to move such that the strip on top of the push is also moved.Type: ApplicationFiled: September 12, 2005Publication date: March 15, 2007Inventors: Lu-Hung Yang, Tzer-Ming Chen
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Publication number: 20050283177Abstract: A safety lancet includes a housing, a needle hub with a needle received inside the housing and be movable relative to the housing, a latching device for retaining position of the needle hub relative to the housing, an agitation device movable relative to the housing to release position retaining of the latching device to the needle hub, and a driving device integrally formed with the agitation device to initially and eccentrically drive the needle hub relative to the housing so as to facilitate the position release of the latching device to the needle hub.Type: ApplicationFiled: June 18, 2004Publication date: December 22, 2005Inventor: Tzer-Ming Chen
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Publication number: 20050251188Abstract: A safety lancet device has a casing, a driver assembly and a needle hub with a needle. The driver assembly and the needle hub are mounted within the casing. The driver assembly comprises a container, a pressing unit, a controller, a pushing unit and a resilient unit. The needle hub is controlled by the driver assembly to make the needle momentarily protrude. After the needle is used, the location of the driver assembly keeps the needle from protruding. When a new needle hub replaces the used needle hub, the driver assembly will return to the original location before use and can drive the needle momentarily from the casing. Users will not forget to change the used needle. Furthermore, the safety lancet device will decrease the danger of infection.Type: ApplicationFiled: May 6, 2004Publication date: November 10, 2005Inventors: Tzer-Ming Chen, Fu-Yuan Li
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Patent number: 6787013Abstract: A spacer forming method for a biosensor that has a biosensor possessing a capillary sampling channel and electrical connecting tracks for the use of a specific portable meter. A pair of electrodes is printed on an insulating base plate to be the transducer of the electrochemical biosensor by means of the screen-printing technology. The advanced thick-film printing technology is employed to construct the spacer component of the sampling channel that precisely controls the volume of a sample solution. Therefore, the spacer forming method reduces the usage of adhesive that otherwise causes a serious problem during a continuous punching procedure. Furthermore, the embedded switch pad on the biosensor is introduced to be instead of a micro switch in a connector of the portable meter.Type: GrantFiled: September 10, 2001Date of Patent: September 7, 2004Assignee: Eumed Biotechnology Co., Ltd.Inventors: Ching-Yu Chang, Cherng-Jyh Lee, Tzer-Ming Chen
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Publication number: 20030046811Abstract: A spacer forming method for a biosensor that has a biosensor possessing a capillary sampling channel and electrical connecting tracks for the use of a specific portable meter. A pair of electrodes is printed on an insulating base plate to be the transducer of the electrochemical biosensor by means of the screen-printing technology. The advanced thick-film printing technology is employed to construct the spacer component of the sampling channel that precisely controls the volume of a sample solution. Therefore, the spacer forming method reduces the usage of adhesive that otherwise causes a serious problem during a continuous punching procedure. Furthermore, the embedded switch pad on the biosensor is introduced to be instead of a micro switch in a connector of the portable meter.Type: ApplicationFiled: September 10, 2001Publication date: March 13, 2003Applicant: Eumed Biotechnology Co., Ltd.Inventors: Ching-Yu Chang, Cherng-Jyh Lee, Tzer-Ming Chen