Patents by Inventor Chamkurkishtiah P. Rao

Chamkurkishtiah P. Rao 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: 20160045696
    Abstract: The mechanical ventilator system is a compact and portable artificial respiration system. A vortex ring generator delivers a FiO2 mix from an air-oxygen blender to a patient's alveoli via an endotracheal tube during the s patient's inhalations, but remains idle during the patient's exhalations. Exhaust gases generated by the patient are released through an exhaust gas valve. During operation, the patient's oxygen saturation level is measured and kept in communication to receive oxygen saturation level signals and to control the oxygen proportion of the FiO2 mix. A pressure flow sensor is fluidly coupled with the patient's airway to control actuation of the vortex generator. The flow sensor is coupled with a controller, which actuates a vortex generator trigger circuit in communication with the vortex ring generator.
    Type: Application
    Filed: October 29, 2015
    Publication date: February 18, 2016
    Inventors: MAPATUNAGE A. SIRIWARDENA, CHAMKURKISHTIAH P. RAO
  • Publication number: 20150101608
    Abstract: The toroidal ring ventilator system is a compact and portable artificial respiration system. A vortex ring generator delivers a FiO2 mix from an air-oxygen blender to the patient during the patient's inhalations, but remains idle during the patient's exhalations. Exhaust gases generated by the patient are released through an exhaust gas valve. During operation, the patient's oxygen saturation level is measured by an infrared pulse-oxygen probe, and a FiO2 autoregulator is in communication with the probe to receive oxygen saturation level signals. The FiO2 autoregulator is coupled with the air-oxygen blender to control the oxygen proportion of the FiO2 mix. An automatic pressure flow sensor is fluidly coupled with the patient's airway to control actuation of the vortex ring generator. The automatic flow sensor is coupled with a controller, which actuates a vortex ring generator trigger circuit in communication with the vortex ring generator.
    Type: Application
    Filed: October 16, 2013
    Publication date: April 16, 2015
    Inventors: MAPATUNAGE A. SIRIWARDENA, CHAMKURKISHTIAH P. RAO
  • Patent number: 8757160
    Abstract: The self-cleaning and sterilizing medical tube may include a combination of an endotracheal tube or a tracheostomy tube and a suction catheter that decreases the tendency of mucus and bacteria to adhere to the inner surfaces of the thereof. The medical tube may have a hydrophobic surface exhibiting the lotus effect, which may be formed either by femtosecond laser etching or by a coating of poly (ethylene oxide). Alternatively, the medical tube may be formed with a photocatalyst incorporated therein or have a lumen coated with a photocatalyst. The medical tube may also have a light source and a fiberoptic bundle mounted thereon, the optical fibers extending into the lumen to illuminate the photocatalyst.
    Type: Grant
    Filed: February 16, 2013
    Date of Patent: June 24, 2014
    Inventors: Chamkurkishtiah P. Rao, Diana C. Lister
  • Publication number: 20130152921
    Abstract: The self-cleaning and sterilizing medical tube may include a combination of an endotracheal tube or a tracheostomy tube and a suction catheter that decreases the tendency of mucus and bacteria to adhere to the inner surfaces of the thereof. The medical tube may have a hydrophobic surface exhibiting the lotus effect, which may be formed either by femtosecond laser etching or by a coating of poly (ethylene oxide). Alternatively, the medical tube may be formed with a photocatalyst incorporated therein or have a lumen coated with a photocatalyst. The medical tube may also have a light source and a fiberoptic bundle mounted thereon, the optical fibers extending into the lumen to illuminate the photocatalyst.
    Type: Application
    Filed: February 16, 2013
    Publication date: June 20, 2013
    Inventors: CHAMKURKISHTIAH P. RAO, DIANA C. LISTER
  • Patent number: 8381728
    Abstract: The self-cleaning and sterilizing endotracheal and tracheostomy tube may include a combination of an endotracheal tube or a tracheostomy tube and a suction catheter that decreases the tendency of mucus and bacteria to adhere to the inner surfaces of the thereof. The endotracheal tube and the catheter may have a hydrophobic surface exhibiting the lotus effect, which may be formed either by femtosecond laser etching or by a coating of ploy (ethylene oxide). Alternatively, the endotracheal tube and the catheter may have a lumen coated with a photocatalyst. The endotracheal tube may also have a light source and a fiberoptic bundle mounted thereon, the optical fibers extending into the lumen to illuminate the photocatalyst.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: February 26, 2013
    Inventors: Chamkurkishtiah P. Rao, Diana C. Lister
  • Publication number: 20090133695
    Abstract: The mechanical ventilator system is a compact and portable artificial respiration system. A negative pressure vortex generator delivers an FiO2 mix from an air-oxygen blender to the patient during the patient's inhalations, but remains idle during the patient's exhalations. Exhaust gases generated by the patient are released through an exhaust gas valve. During operation, the patient's oxygen saturation level is measured by an infrared pulse-oxygen probe, and an FiO2 autoregulator is in communication with the probe to receive oxygen saturation level signals. The FiO2 autoregulator is coupled with the air-oxygen blender to control the oxygen proportion of the FiO2 mix. An automatic pressure flow sensor is fluidly coupled with the patient's airway to control actuation of the negative pressure vortex generator. The automatic flow sensor is coupled with a controller, which actuates a vortex generator trigger circuit in communication with the vortex generator.
    Type: Application
    Filed: March 21, 2008
    Publication date: May 28, 2009
    Inventors: CHAMKURKISHTIAH P. RAO, DIANA C. LISTER
  • Publication number: 20080257355
    Abstract: The self-cleaning and sterilizing endotracheal and tracheostomy tube may include a combination of an endotracheal tube or a tracheostomy tube and a suction catheter that decreases the tendency of mucus and bacteria to adhere to the inner surfaces of the thereof. The endotracheal tube and the catheter may have a hydrophobic surface exhibiting the lotus effect, which may be formed either by femtosecond laser etching or by a coating of ploy (ethylene oxide). Alternatively, the endotracheal tube and the catheter may have a lumen coated with a photocatalyst. The endotracheal tube may also have a light source and a fiberoptic bundle mounted thereon, the optical fibers extending into the lumen to illuminate the photocatalyst.
    Type: Application
    Filed: April 18, 2007
    Publication date: October 23, 2008
    Inventors: Chamkurkishtiah P. Rao, Diana C. Lister