Patents by Inventor Wen-Hsiang Chang

Wen-Hsiang Chang 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: 20240023981
    Abstract: A thrombectomy device (100) comprising an aspiration pump (10), a catheter (20) and a valve (30) is provided. The aspiration pump (10) is for providing an negative pressure continuously or by interval. The catheter (20) having a distal end (23), mid portion (22) and a proximal end (21) and defining a longitudinal axis. The valve (30) connects between the aspiration pump (10) and the proximal end (21) of the catheter (20) or connects to the catheter (20). Wherein, the catheter (20) comprises at least one elastic area (24), which is compressed along the longitudinal axis in response to application of the negative pressure and expanded along the longitudinal axis in response to relieve of the negative pressure.
    Type: Application
    Filed: October 15, 2020
    Publication date: January 25, 2024
    Applicant: TAIWAN BIOMATERIAL CO., LTD.
    Inventors: Chun-Jen LIAO, Wen-Hsiang CHANG, Jia-Yu CHANG, Wen-Hsi WANG
  • Publication number: 20220218368
    Abstract: A thrombus removal device (100) comprising a catheter (10), at least one valve (20), and a shaft (30) is provided. The catheter (10) has a proximal end (12) and a distal end (11), and defines a longitudinal axis. The at least one valve (20) is positioned and movable longitudinally inside the catheter (10). The shaft (30) is connected with the proximal end (12) of the catheter (10), and comprises a driving mechanism and a wire (34). Wherein, the wire (34) is connected to the driving mechanism at one end and connected to the at least one valve (20) at an opposite end. The driving mechanism is configured to create a sudden movement of the at least one valve (20) toward the proximal end (12) of the catheter (10). By using the thrombus removal device (100), thrombus can be removed from the body of a subject more efficiently.
    Type: Application
    Filed: August 7, 2020
    Publication date: July 14, 2022
    Applicant: Taiwan Biomaterial Co., Ltd.
    Inventors: Chun-Jen LIAO, Wen-Hsiang CHANG, Wen-Hsi WANG, Chua-Zu HUANG
  • Publication number: 20150372521
    Abstract: The present invention provides a power bank comprising a battery protection board, controller board, and a host connector. The host connector is compatible with an accessory connector on a fast charger board, and the host connector is connected to the accessory connector for boosting the charging rate of the power bank. The fast charger board connected to the power bank may, for powering laptops and electric bicycles, elevate the output voltage of the power bank to 12V or above. The power bank may further connect with other external components, such as an LED module and a wireless transceiver module, in order to extend the functionality of the power bank.
    Type: Application
    Filed: August 10, 2014
    Publication date: December 24, 2015
    Inventors: MING-CHIEH LIN, CHUN-LIANG YANG, WEN-HSIANG CHANG, JUNG KUO, MENG-KWEI HSU
  • Publication number: 20150288219
    Abstract: The present invention relates to a portable power bank comprising a battery pack, a first control module and a second control module, wherein the battery pack further comprises at least two cells connected in series, and wherein the first control module and the second control module both electrically connected to a first terminal and a second terminal of the battery pack; the first controller is configured for regulating the DC input voltage for charging the battery pack and the second controller is configured for regulating the DC output voltage for charging an external device.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 8, 2015
    Inventors: MING-CHIEH LIN, CHUN-LIANG YANG, WEN-HSIANG CHANG, JUNG KUO, MENG-KWEI HSU
  • Patent number: 9011917
    Abstract: One embodiment provides a method for enzymatic treatment, including the steps of forming a closed space on a local tissue area with a device and infusing an enzyme solution into the closed space for enzymatic treatment. The method according to the embodiment is capable of treating the local tissue area with enzymes for enhancing cell proliferation in the treated tissue area and preventing damage of the adjacent normal tissues. A device and kit used for the method are also provided.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: April 21, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Ching-Chuan Jiang, Chun-Jen Liao, Wen-Hsiang Chang, Huang-Chi Chen, Wei-Ju Liao, Wen-Hsi Wang
  • Publication number: 20150079846
    Abstract: A power socket is to be electrically connected to an internal terminal of an electronic device and to be electrically and separably connected to a plug. The plug has a tubular interior surface and an exterior surface. The power socket includes a body, a central terminal, a first conductor, and a second conductor. The body includes a surrounding wall that has an inner surface defining an accommodating space. The central terminal is disposed in the accommodating space, and is electrically connected to the internal terminal. The first conductor is disposed on the inner surface and has a first elastic portion. The second conductor is electrically connected to the central terminal, and has a second elastic portion.
    Type: Application
    Filed: April 25, 2014
    Publication date: March 19, 2015
    Applicant: Lausdeo Corporation
    Inventors: Chun-Liang Yang, Wen-Hsiang Chang, Ming-Chieh Lin, Jung Kuo, Meng-Kwei Hsu
  • Patent number: 8741615
    Abstract: A magnetic nanoparticle is provided in the disclosure. The magnetic nanoparticle includes a magnetic nanoparticle; a biocompatible polymer of the following formula (II) covalently coupled to the magnetic nanoparticle, wherein R1 is alkyl, aryl, carboxyl, or amino; n is an integer from 5 to 1000; and m is an integer from 1 to 10.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: June 3, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Wen-Hsiang Chang, Wen-Uan Hsieh, Shiu-Hua Huang, Chin-I Lin, Shian-Jy Jassy Wang, Kelly Teng
  • Publication number: 20140142521
    Abstract: One embodiment provides a method for enzymatic treatment, including the steps of forming a closed space on a local tissue area with a device and infusing an enzyme solution into the closed space for enzymatic treatment. The method according to the embodiment is capable of treating the local tissue area with enzymes for enhancing cell proliferation in the treated tissue area and preventing damage of the adjacent normal tissues. A device and kit used for the method are also provided.
    Type: Application
    Filed: January 23, 2014
    Publication date: May 22, 2014
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ching-Chuan JIANG, Chun-Jen LIAO, Wen-Hsiang CHANG, Huang-Chi CHEN, Wei-Ju LIAO, Wen-Hsi WANG
  • Patent number: 8673636
    Abstract: One embodiment provides a method for enzymatic treatment, including the steps of forming a closed space on a local tissue area with a device and infusing an enzyme solution into the closed space for enzymatic treatment. The method according to the embodiment is capable of treating the local tissue area with enzymes for enhancing cell proliferation in the treated tissue area and preventing damage of the adjacent normal tissues. A device and kit used for the method are also provided.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 18, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Ching-Chuan Jiang, Chun-Jen Liao, Wen-Hsiang Chang, Huang-Chi Chen, Wei-Ju Liao, Wen-Hsi Wang
  • Patent number: 8586095
    Abstract: A thermosensitive nanostructure for hyperthermia treatment. Magnetic nanoparticles are encapsulated in a thermosensitive polymer nanostructure having a lower critical solution temperature (LCST) of about 40-45° C. The thermosensitive polymer nanostructure may carry a drug. When the magnetic nanoparticles are heated to 40-45° C. by application of an alternating magnetic field in hyperthermia treatment, the thermosensitive polymer nanostructure collapses to release the drug, thus providing concurrent drug treatment.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: November 19, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Wen Hsiang Chang, Chao-Hung Kao, Chin-I Lin, Shian-Jy Wang
  • Publication number: 20130236965
    Abstract: One embodiment provides a method for enzymatic treatment, including the steps of forming a closed space on a local tissue area with a device and infusing an enzyme solution into the closed space for enzymatic treatment. The method according to the embodiment is capable of treating the local tissue area with enzymes for enhancing cell proliferation in the treated tissue area and preventing damage of the adjacent normal tissues. A device and kit used for the method are also provided.
    Type: Application
    Filed: September 13, 2012
    Publication date: September 12, 2013
    Inventors: Ching-Chuan JIANG, Chun-Jen LIAO, Wen-Hsiang CHANG, Huang-Chi CHEN, Wei-Ju LIAO, Wen-Hsi WANG
  • Publication number: 20130172946
    Abstract: An implant module for dragging a bone fragment toward a bone is provided. The bone fragment has a first through hole, and the bone has a second through hole. The implant module includes a screw and a stud. The screw has a first section fixed to the bone fragment and a second section provided with a first external thread on its outer surface. The stud is provided with a second external thread on its outer surface for being screwed into the second through hole of the bone. An end of the stud has a screw hole for being screwed with the second section of the screw via the first external thread. A method of repairing avulsion fracture by using the implant module is further provided.
    Type: Application
    Filed: August 3, 2012
    Publication date: July 4, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ching-Chuan Jiang, Chun-Jen Liao, Wen-Hsiang Chang, Shih-Jui Han, Yu-Ming Wang, Ying-Wen Shen
  • Publication number: 20120329129
    Abstract: A magnetic nanoparticle is provided in the disclosure. The magnetic nanoparticle includes a magnetic nanoparticle; a biocompatible polymer of the following formula (II) covalently coupled to the magnetic nanoparticle, wherein R1 is alkyl, aryl, carboxyl, or amino; n is an integer from 5 to 1000; and m is an integer from 1 to 10.
    Type: Application
    Filed: August 30, 2012
    Publication date: December 27, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Wen-Hsiang Chang, Wen-Uan Hsieh, Shiu-Hua Huang, Chin-I Lin, Shian-Jy Jassy Wang, Kelly Teng
  • Publication number: 20110171715
    Abstract: The invention discloses a biocompatible polymer for covalently modifying magnetic nanoparticles. The biocompatible polymer may be coupled to a targeting agent and/or a fluorescent dye. The invention also discloses a magnetic nanoparticle with biocompatibilities comprising the biocompatible polymer.
    Type: Application
    Filed: April 22, 2008
    Publication date: July 14, 2011
    Applicant: Industrial Technology Research Institute
    Inventors: Wen-Hsiang Chang, Wen-Uan Hsieh, Shiu-Hua Huang, Chin-1 Lin, Shian-Jy Jassy Wang, Kelly Teng
  • Patent number: 7700193
    Abstract: A core-shell structure with magnetic, thermal, and optical characteristics. The optical absorption band is tailorable by choice of the mixing ratio of the core/shell component to give the desired shell thickness. The core-shell structure is particularly suitable for biomedical applications such as MRI (magnetic resonance imaging) developer, specific tissue identification developer, and magnetic thermal therapy.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: April 20, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Ming-Yao Chen, Wen-Hsiang Chang, Chin-I Lin, Shian-Jy Jassy Wang, Yuh-Jiuan Lin
  • Patent number: 7282220
    Abstract: A pharmaceutical microsphere comprises a bioactive agent and a biological carrier that encapsulates the bioactive agent, wherein the biological carrier is crosslinked with a crosslinking agent.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: October 16, 2007
    Inventors: Hsing-Wen Sung, Huang-Chien Liang, Wen-Hsiang Chang, Hosheng Tu
  • Publication number: 20070154397
    Abstract: A thermosensitive nanostructure for hyperthermia treatment. Magnetic nanoparticles are encapsulated in a thermosensitive polymer nanostructure having a lower critical solution temperature (LCST) of about 40-45° C. The thermosensitive polymer nanostructure may carry a drug. When the magnetic nanoparticles are heated to 40-45° C. by application of an alternating magnetic field in hyperthermia treatment, the thermosensitive polymer nanostructure collapses to release the drug, thus providing concurrent drug treatment.
    Type: Application
    Filed: August 29, 2006
    Publication date: July 5, 2007
    Inventors: Wen Hsiang Chang, Chao-Hung Kao, Chin-I Lin, Shian-Jy Wang
  • Publication number: 20060228551
    Abstract: A core-shell structure with magnetic, thermal, and optical characteristics. The optical absorption band is tailorable by choice of the mixing ratio of the core/shell component to give the desired shell thickness. The core-shell structure is particularly suitable for biomedical applications such as MRI (magnetic resonance imaging) developer, specific tissue identification developer, and magnetic thermal therapy.
    Type: Application
    Filed: September 29, 2005
    Publication date: October 12, 2006
    Inventors: Ming-Yao Chen, Wen-Hsiang Chang, Chin-I Lin, Shian-Jy Wang, Yuh-Jiuan Lin
  • Publication number: 20060200813
    Abstract: A method of updating firmware of a circuit module includes providing a switch for selectively connecting the circuit module to a computing system and an update module. The circuit module enters a reset mode and an input/output pin of the circuit module switches to an input mode in response to power being supplied to the circuit module. The input/output pin is pulled to a first digital logic value, which controls the switch to connect the circuit module to the update module. While the circuit module is in the reset mode, the circuit module receives updated firmware from the update module. Then the circuit module enters a normal operation mode and switches the input/output pin to an output mode for outputting a second digital logic value. When the input/output pin outputs the second digital logic value, the input/output pin controls the switch to connect the circuit module to the computing system.
    Type: Application
    Filed: March 1, 2005
    Publication date: September 7, 2006
    Inventors: Sea-Weng Young, Peter Liu, Wen-Hsiang Chang
  • Publication number: 20060182710
    Abstract: An amphiphilic block copolymer and a pharmaceutical formulation comprising the same. The amphiphilic block copolymer comprises a poly(lactide) as a hydrophobic block and a poly(oxazoline) as a hydrophilic block.
    Type: Application
    Filed: December 22, 2005
    Publication date: August 17, 2006
    Inventors: Ging-Ho Hsiue, Chau-Hui Wang, Wen-Hsiang Chang, Chin-I Lin, Shian-Jy Wang