Patents by Inventor CALVIN CHANG

CALVIN 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).

  • Patent number: 11771807
    Abstract: A soft tissue device can incorporate a composite material comprising a gel and at least one nanostructure disposed within the gel. A soft tissue device can further incorporate biologically active materials such as cells, tissues. A method for healing a soft tissue defect while promoting soft tissue regeneration can include applying a soft tissue device to a soft tissue defect, wherein the composite material includes a gel and a nanostructure disposed within the gel. A method for manufacturing a soft tissue device for use in healing soft tissue defects can include providing a gel, disposing nanofibers within the gel, and a biologically active material.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: October 3, 2023
    Assignee: The Johns Hopkins University
    Inventors: Sashank Reddy, Russell Martin, Xiaowei Li, Calvin Chang, Kevin Colbert, Hai-Quan Mao
  • Publication number: 20210402061
    Abstract: A composite material can include a gel and at least one nanostructure disposed within the gel. A method for healing a soft tissue defect can include applying a composite material to a soft tissue defect, wherein the composite material includes a gel and a nanostructure disposed within the gel. A method for manufacturing a composite material for use in healing soft tissue defects can include providing a gel and disposing nanofibers within the gel.
    Type: Application
    Filed: May 9, 2019
    Publication date: December 30, 2021
    Inventors: Sashank Reddy, Russell Martin, Xiaowei Li, Calvin Chang, Kevin Colbert, Hai-Quan Mao
  • Publication number: 20200030496
    Abstract: A soft tissue device can incorporate a composite material comprising a gel and at least one nanostructure disposed within the gel. A soft tissue device can further incorporate biologically active materials such as cells, tissues. A method for healing a soft tissue defect while promoting soft tissue regeneration can include applying a soft tissue device to a soft tissue defect, wherein the composite material includes a gel and a nanostructure disposed within the gel. A method for manufacturing a soft tissue device for use in healing soft tissue defects can include providing a gel, disposing nanofibers within the gel, and a biologically active material.
    Type: Application
    Filed: July 18, 2019
    Publication date: January 30, 2020
    Inventors: Sashank Reddy, Russell Martin, Xiaowei Li, Calvin Chang, Kevin Colbert, Hai-Quan Mao
  • Patent number: 10045785
    Abstract: A double-balloon inferior vena cava (IVC) shunt for use in controlling blood loss and simultaneously maintaining venous return is disclosed. The IVC shunt comprises a first balloon-catheter unit and second balloon-catheter unit that are slidably coupled to one another to form an adjustable shunt. The first and second balloons in the shunt are independently inflatable. The double-balloon shunt is readily adjustable to fit the dimensions of the injured region.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: August 14, 2018
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Wes Bernier, Calvin Chang, James H. Black, David T. Efron
  • Publication number: 20160081692
    Abstract: A double-balloon inferior vena cava (NC) shunt for use in controlling blood loss and simultaneously maintaining venous return is disclosed. The NC shunt comprises a first balloon-catheter unit and second balloon-catheter unit that are slidably coupled to one another to form an adjustable shunt. The first and second balloons in the shunt are independently inflatable. The double-balloon shunt is readily adjustable to fit the dimensions of the injured region.
    Type: Application
    Filed: May 6, 2014
    Publication date: March 24, 2016
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: WES BERNIER, CALVIN CHANG, JAMES H. BLACK, DAVID T. EFRON
  • Publication number: 20050264649
    Abstract: A device attaches a videoconferencing device to a mobile support structure to create a mobile videoconferencing apparatus for use in video-based interpretation of communications between a health care provider and a patient. A related system includes a attachment portion and a bracket apparatus fitted to receive and secure the attachment portion and support a videoconferencing device for receiving videoconferencing signals sent by an interpreter to a patient responsive to communications between the patient and a health care provider on a mobile support structure.
    Type: Application
    Filed: March 29, 2005
    Publication date: December 1, 2005
    Inventors: Calvin Chang, Daniel Kurywchak, Thomas Nesbitt, David Oakes, Robert Chason, George Wu
  • Publication number: 20050251421
    Abstract: Remotely provided interpretation services enable a patient to communicate with one or more care providers in a health care organization. An interpreter can see and hear the communication between the patient and care provider, and interprets on behalf of the patient from a remotely located facility or decentralized location such as the interpreter's home. In an embodiment, the patient is provided with a mobile videoconferencing unit that can be transported with the patient during the duration of the patient's appointment as the patient moves from administrative to diagnostic to testing settings. In another embodiment, a system includes a database including patient language information, a scheduling system for reserving an interpreter, and a multipoint control unit (MCU) module for providing a secure connection for a teleconference between the patient and the interpreter.
    Type: Application
    Filed: March 29, 2005
    Publication date: November 10, 2005
    Inventors: Calvin Chang, Daniel Kurywchak, Thomas Nesbitt, David Oakes, Ravi Nemana, Robert Chason, Marbella Sala
  • Publication number: 20030191882
    Abstract: An integrated multi-function storing means, comprising: a multi-storage connecting interface for connecting each kind of storage medium device, a user may alter each storage medium device. A multi-function card reader is used for achieving the function of reading pluralities of memory cards. A universal serial bus (USB) IS connected to the multi-storage connecting interface and the multi-function card reader for data transmission. A HUB connected to the USB includes a plurality of connecting ports for connecting at least two computer peripheral devices. Control circuits are connected to the HUB for driving the corresponding device.
    Type: Application
    Filed: May 3, 2002
    Publication date: October 9, 2003
    Inventor: Calvin Chang
  • Publication number: 20010040786
    Abstract: A computer includes a computer casing, a desktop computer floppy disk drive, a notebook computer disk drive device, a bracket and an adapter. The computer casing has a motherboard mounted therein. The desktop computer floppy disk drive is connected electrically to the motherboard. The notebook computer disk drive device has a notebook computer floppy disk drive and a CD-ROM (compact disk read-only memory) drive for a notebook computer. The bracket is mounted on the computer casing and has a receiving chamber for receiving selectively one of the desktop computer floppy disk drive and the notebook computer disk drive device. The adapter interconnects electrically the notebook computer disk drive device and the motherboard.
    Type: Application
    Filed: April 26, 1999
    Publication date: November 15, 2001
    Inventor: CALVIN CHANG
  • Patent number: D982901
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: April 11, 2023
    Inventor: Calvin Chang