Patents by Inventor Chris A. Jespersen

Chris A. Jespersen 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: 20050033243
    Abstract: A tissue retrieval arrangement for enclosably retrieving body tissue from a mammalian body cavity. The retrieval arrangement comprises an elongated thin walled sheath-like retrieval bag having a proximal end and a distal end. A plurality of receiving tips are arranged on the distal end of the sheath to permit receipt of a grasper jaw in each of the receiving tips and thus permit safe retrieval of a body tissue between the receiving tips when moved by the grasper jaws. The bag is everted over the severed tissue once the receiving tips have grasped the tissue, and the now enclosed tissue and bag may be safely removed from the patient.
    Type: Application
    Filed: June 22, 2004
    Publication date: February 10, 2005
    Inventor: Chris Jespersen
  • Patent number: 6752822
    Abstract: A tissue retrieval arrangement for enclosably retrieving body tissue from a mammalian body cavity. The retrieval arrangement comprises an elongated thin walled sheath-like retrieval bag having a proximal end and a distal end. A plurality of receiving tips are arranged on the distal end of the sheath to permit receipt of a grasper jaw in each of the receiving tips and thus permit safe retrieval of a body tissue between the receiving tips when moved by the grasper jaws. The bag is everted over the severed tissue once the receiving tips have grasped the tissue, and the now enclosed tissue and bag may be safely removed from the patient.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: June 22, 2004
    Inventor: Chris A. Jespersen
  • Publication number: 20030139767
    Abstract: A tissue retrieval arrangement for enclosably retrieving body tissue from a mammalian body cavity. The retrieval arrangement comprises an elongated thin walled sheath-like retrieval bag having a proximal end and a distal end. A plurality of receiving tips are arranged on the distal end of the sheath to permit receipt of a grasper jaw in each of the receiving tips and thus permit safe retrieval of a body tissue between the receiving tips when moved by the grasper jaws. The bag is everted over the severed tissue once the receiving tips have grasped the tissue, and the now enclosed tissue and bag may be safely removed from the patient.
    Type: Application
    Filed: January 23, 2002
    Publication date: July 24, 2003
    Inventor: Chris A. Jespersen
  • Patent number: 4343316
    Abstract: A urine flow monitor for displaying preferably in digital form total patient urine output and also urine flow rate. Urine from the patient passes through a catheter and into a calibrated volume chamber of special configuration which permits use even under conditions of vertical misalignment and wherein electronically controlled valve means are located both above and below the chamber and optical sensor means are provided above the chamber and below the top valve means. With the lower valve means closed, filling of the chamber takes place until the point where the urine level reaches the optical sensor at which time, by virtue of electronic control, the upper valve will close and the lower valve will open, allowing the urine to pass into a collection receptacle such as a urine drainage bag. Concurrently with the operation of the valve means, a signal is sent to a console monitor to record the volume dumped into the receptacle and also to commence operation of the flow rate recorder.
    Type: Grant
    Filed: May 16, 1980
    Date of Patent: August 10, 1982
    Assignee: C. R. Bard, Inc.
    Inventor: Chris A. Jespersen