Patents by Inventor Michael P. Chu

Michael P. Chu 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).

  • Sheath device with dressing for prevention of pneumothorax.
    Patent number: 7244245
    Abstract: A sheath device comprises a substantially rigid elongated body adapted to receive a chest tube. The body includes a first end and a second end, flexible seal at the first end, and an air-impermeable flexible joint at the second end. A base having a first side and a second side is provided at the joint, wherein the first side is connected with the flexible joint and the second side includes an adhesive for securing the base to a patient's chest. A method of preventing pneumothorax in a patient having a chest tube removed comprises attaching the sheath device to the patient's chest at the time of the chest tube placement, later withdrawing the chest tube into the airtight chamber of the sheath, and sealing the sheath device. Removing the base and flexible joint of the sheath device from the body of the sheath device leaves an air-impermeable dressing on the patient's chest.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: July 17, 2007
    Inventors: Benjamin Warren Purow, Michael P. Chu
  • Sheath device with dressing for prevention of pneumothorax
    Publication number: 20030233073
    Abstract: A sheath device comprises a substantially rigid elongated body adapted to receive a chest tube. The body includes a first end and a second end, flexible seal at the first end, and an air-impermeable flexible joint at the second end. A base having a first side and a second side is provided at the joint, wherein the first side is connected with the flexible joint and the second side includes an adhesive for securing the base to a patient's chest. A method of preventing pneumothorax in a patient having a chest tube removed comprises attaching the sheath device to the patient's chest at the time of the chest tube placement, later withdrawing the chest tube into the airtight chamber of the sheath, and sealing the sheath device. Removing the base and flexible joint of the sheath device from the body of the sheath device leaves an air-impermeable dressing on the patient's chest.
    Type: Application
    Filed: March 17, 2003
    Publication date: December 18, 2003
    Inventors: Benjamin Warren Purow, Michael P. Chu
  • Sheath device with dressing for prevention of pneumothorax
    Patent number: 6569121
    Abstract: A sheath device comprises a substantially rigid elongated body adapted to receive a chest tube. The body includes a first end and a second end, flexible seal at the first end, and an air-impermeable flexible joint at the second end. A base having a first side and a second side is provided at the joint, wherein the first side is connected with the flexible joint and the second side includes an adhesive for securing the base to a patient's chest. A method of preventing pneumothorax in a patient having a chest tube removed comprises attaching the sheath device to the patient's chest at the time of the chest tube placement, later withdrawing the chest tube into the airtight chamber of the sheath, and sealing the sheath device. Removing the base and flexible joint of the sheath device from the body of the sheath device leaves an air-impermeable dressing on the patient's chest.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: May 27, 2003
    Inventors: Benjamin Warren Purow, Michael P. Chu