Robert Louis Rayburn
Physician in Salt Lake City, UT

4320754, Mar 23, 1982

Dec 21, 1979

6/106286

Robert L. Watson - Silver Spring MD
Robert L. Rayburn - Salt Lake City UT

A61M 1600

12820425

An apparatus for resuscitating, administering anesthesia to, or administering respiratory care to a patient is shown which allows greater rebreathing of mixed expired gases thus improving humidification and heat retention in the inspired gases. The inhalation breathing circuit may include two concentric, non-kinking, corrugated tubes, one visually apparent within the other, for handling both fresh gases and mixed expired gases of the patient or the inhalation breathing circuit may consist of a spiralled inflow tube contained within the wall of the larger exhalation corregated tube. An adjustable exhaust pressure valve maintains a predetermined pressure range for the gas being delivered to-and-fro between a breathing bag and the patient. Expired gases vent through an anesthesia bacterial filter or may be scavenged to prevent environmental pollution. Suctioning of the patient may be performed without interrupting the fresh gas flow or ventilation to the patient.

5733242, Mar 31, 1998

Feb 7, 1996

8/598113

Robert L. Rayburn - Salt Lake City UT
Scott D. Unice - Salt Lake City UT

A61B 1012

600120

An intubator includes a housing and a memory cylinder connected for axial movement relative to the housing. A flexible scope tube attached to the housing extends within and through the memory cylinder such that the scope tube can be retracted within or caused to extend beyond the distal end of the memory cylinder by the relative axial movement between the housing and memory cylinder. The scope tube is angularly adjustable and includes a light transmitting fiber optic cable, a visual transmission fiberoptic cable, and a fluid conduit. In use, an endotracheal tube is mounted on the memory cylinder such that the endotracheal tube, memory cylinder and scope tube have their distal ends flush. The intubator is then inserted through the patient's mouth to the larynx opening. Collapsing the memory cylinder within the handle causes the scope tube to be extended from the memory cylinder for positioning within the trachea.

4446864, May 8, 1984

Jul 7, 1981

6/281066

Robert L. Watson - Silver Spring MD
Robert L. Rayburn - Salt Lake City UT

A61M 1600

12820714

An emergency esophageal ventilating airway includes coaxial tubular members insertable through a patient's mouth and into the esophagus. The coaxial tubes are attached to a coupling which is inserted into a standard face mask. The longer, inner, one of the tubes extends into the lower esophagus and has an inflatable occluding cuff at its inner or lower end while the outer end extends through the coupling and mask to the atmosphere providing a clear venting passage from the stomach. The outer tube has holes lying near the laryngeal region and communicates, through chambers in the coupling, with a ventilating gas supply. A second embodiment includes tubes of equal length in concentric relationship, the cuff being on the outer tube. In the second embodiment, the inner tube is distensible so that, when relaxed, maximum air flow volume is available. The inner tube expands to permit passage of an NG tube.