Patents by Inventor Perry W. Croll

Perry W. Croll 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: 7112177
    Abstract: An apparatus for monitoring intra-abdominal pressure in a medical patient includes a urinary catheter connected to a urine valve having selectable communication positions between a discharge end of the urinary catheter and either a drain or a fluid source. Preferably, the urine valve has a housing adapted to resist patient discomfort from body-valve contact. A plumbing structure desirably maintains fluid supply and drain conduits in a substantially parallel arrangement to assist routing those conduits between a patient's legs. When the urine valve is oriented for communication with the fluid source, a syringe may be used to introduce a known quantity of fluid through the urine valve into the patient's bladder where the fluid's pressure can be measured. Desirably, a double check valve is included in a fluid supply path and arranged to permit repetitive operation of the syringe to introduce a bolus of fluid into the patient's bladder.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: September 26, 2006
    Assignee: Wolfe Tory Medical, Inc.
    Inventors: Mark A. Christensen, Timothy R. Wolfe, Perry W. Croll, Marshall T. Denton, Edward J. Kimball
  • Publication number: 20040215155
    Abstract: A wound irrigation apparatus including a disposable portion associated with a discharged irrigation stream and a reusable fluid dispensing portion. One embodiment combines a conventional disposable splash shield with a shroud operable as a second splash shield to further protect (for reuse) a flow control device and its fluid supply conduit from splash-back of irrigating fluid. An exemplary shroud can be formed from a plastic bag. The shroud generally is used with a check valve forming a fluid path from the flow control device to a discharge nozzle exterior to the shroud. A preferred check valve may be embodied as a LUER™ joint spacer, and is structured to form a fluid resistant connection in engagement with a shroud by piercing the distal end of the check valve through a membrane wall of the shroud for reception of that distal end in a hub of a splash shield.
    Type: Application
    Filed: April 23, 2003
    Publication date: October 28, 2004
    Inventors: Timothy R. Wolfe, Marshall T. Denton, Perry W. Croll, Mark A. Christensen
  • Publication number: 20040176703
    Abstract: An apparatus for monitoring intra-abdominal pressure in a medical patient includes a urinary catheter connected to a urine valve having selectable communication positions between a discharge end of the urinary catheter and either a drain or a fluid source. Preferably, the urine valve has a housing adapted to resist patient discomfort from body-valve contact. A plumbing structure desirably maintains fluid supply and drain conduits in a substantially parallel arrangement to assist routing those conduits between a patient's legs. When the urine valve is oriented for communication with the fluid source, a syringe may be used to introduce a known quantity of fluid through the urine valve into the patient's bladder where the fluid's pressure can be measured. Desirably, a double check valve is included in a fluid supply path and arranged to permit repetitive operation of the syringe to introduce a bolus of fluid into the patient's bladder.
    Type: Application
    Filed: March 4, 2003
    Publication date: September 9, 2004
    Inventors: Mark C. Christensen, Timothy R. Wolfe, Perry W. Croll, Marshall T. Denton
  • Patent number: 6698429
    Abstract: An atomizing nozzle which may be embodied having particular utility to dispense fluid as a mist at an exit of an endotracheal tube. The nozzle may be adapted to maintain a dry exit surface, and to resist unintended leakage of a medication. In one embodiment, a pressure of about 5 psi is required to initiate a discharge of fluid from the nozzle exit orifice.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: March 2, 2004
    Assignee: Wolfe Tory Medical, Inc.
    Inventors: Perry W. Croll, Marshall T. Denton
  • Publication number: 20030172934
    Abstract: An atomizing nozzle which may be embodied having particular utility to dispense fluid as a mist at an exit of an endotracheal tube. The nozzle may be adapted to maintain a dry exit surface, and to resist unintended leakage of a medication. In one embodiment, a pressure of about 5 psi is required to initiate a discharge of fluid from the nozzle exit orifice.
    Type: Application
    Filed: March 15, 2002
    Publication date: September 18, 2003
    Inventors: Perry W. Croll, Marshall T. Denton