1
Kent L Christopher: System for monitoring and treating sleep disorders using a transtracheal catheter. Dorr Carson Sloan & Birney P C, September 21, 1999: US05954050 (126 worldwide citation)

An apparatus for augmenting ventilation of a patient and monitoring the patient's breathing patterns uses a transtracheal catheter. A substantially constant flow of oxygen/air is supplied through one of the lumens of the transtracheal catheter into the patient's trachea to augment the patient's spon ...


2
Kent L Christopher: Method and apparatus for endotracheal intubation using a light wand and curved guide. Evergreen Medical Incorporated, Dorr Carson Sloan Birney & Kramer P C, March 1, 2005: US06860264 (120 worldwide citation)

A method and apparatus for endotracheal intubation with simultaneous oxygenation/ventilation employs a curved guide and a light wand to ensure proper placement of the endotracheal tube in the patient's airway. The light wand has an elongated flexible member with a light source at its distal tip. The ...


3
Kent L Christopher: Endoscope with a removable suction tube. Evergreen Medical Incorporated, Dorr Carson Sloan & Birney P C, July 1, 2003: US06585642 (86 worldwide citation)

An endoscope has a removable suction tube to facilitate cleaning and reduce the risk of patient infection. The endoscope includes an elongated flexible probe with a housing at its proximal end to control the direction and operation of the probe and for viewing images carried by optical fibers from t ...


4
Kent L Christopher: Method and apparatus for weaning ventilator-dependent patients. Dorr Carson Sloan & Birney, May 30, 1995: US05419314 (63 worldwide citation)

A method and apparatus for weaning a ventilator-dependent patient employs a transtracheal catheter that is inserted through the patient's tracheostomy tube to continuously augment the flow of oxygen to the lungs as the patient breathes spontaneously. In particular, the weaning process involves disco ...


5
Kent L Christopher: Apparatus for high continuous flow augmentation of ventilation and method therefor. Dorr Carson Sloan & Peterson, April 7, 1992: US05101820 (62 worldwide citation)

The present invention provides a system for augmenting ventilation and removing carbon dioxide of a spontaneous-breathing patient and a method of use thereof. The system further allows relaxation of the breathing process thus reducing fatigue of the patient. The system involves providing a high cont ...


6
Kent L Christopher, Stephanie S Diehl: System for providing flow-targeted ventilation synchronized to a patients breathing cycle. CS Medical, Dorr Carson & Birney P C, September 20, 2011: US08020558 (52 worldwide citation)

An open system provides breath-synchronized, flow-targeted ventilation to augment respiration by a self-breathing patient. A sensor detects a physical property of a patient's respiratory cycle. A processor monitors the sensor and controls a gas source to deliver oxygen-containing gas through a tube ...


7
Bryan T Spofford, Kent L Christopher, Michael E Hovanes: Transtracheal catheter system and method. Bryan T Spofford, Kent L Christopher, Dorr Carson Sloan & Peterson, February 25, 1992: US05090408 (48 worldwide citation)

A system for continuously supplying supplemental therapeutic oxygen to a patient to enhance atmospheric breathing comprising an oxygen supply source for continuously supplying low pressure low volume oxygen to a patient at relatively low pressures and relatively low flow rates to supplement normal a ...


8
Kent L Christopher: Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube. Dorr Carson Sloan & Birney P C, December 9, 1997: US05694929 (47 worldwide citation)

An endotracheal tube can be inserted into a patient's trachea during resuscitation by using a face mask and a curved guide. The guide is inserted through a flexible port in the face mask and has a curved distal portion that extends into the patient's mouth and hypopharynx. The patient is initially r ...


9
Kent L Christopher: Apparatus for high continuous flow augmentation of ventilation and method therefor. Dorr Carson Sloan & Peterson, January 18, 1994: US05279288 (44 worldwide citation)

The present invention provides a system for augmenting ventilation and removing carbon dioxide of a spontaneous-breathing patient and a method of use thereof. The system further allows relaxation of the breathing process thus reducing fatigue of the patient. The system involves providing a high cont ...


10
Bryan T Spofford, Kent L Christopher, Michael E Hovanes: Transtracheal catheter system and method. Bryan T Spofford, Kent L Christopher, Dorr Carson Sloan & Peterson, March 29, 1994: US05297546 (38 worldwide citation)

A system for continuously supplying supplemental therapeutic oxygen to a patient to enhance atmospheric breathing comprising an oxygen supply source for continuously supplying low pressure low volume oxygen to a patient at relatively low pressures and relatively low flow rates to supplement normal a ...