Bryan Thomas Spofford
Physician in Denver, CO

5297546, Mar 29, 1994

Sep 4, 1990

7/577693

Bryan T. Spofford - Denver CO
Kent L. Christopher - Denver CO
Michael E. Hovanes - Denver CO

A61M 1600

128207014

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 atmospheric breathing; flexible oxygen supply tube devices for supplying oxygen from said oxygen supply source to the patient; and a continuous one-piece constant diameter flexible elongated tracheal tube member having a continuous constant diameter passage extending therethrough and being flexible when inserted into an operative position within the trachea to provide therein an intermediate curved side wall portion extending between a proximate end side wall portion having an unrestricted inlet opening therein located posterior of the neck of a patient and a straight distal side wall portion located in the trachea and extending downwardly therein and having an unrestricted distal end outlet opening located in upwardly spaced relationship to the bronchial tubes of the patient.

5186168, Feb 16, 1993

Jun 6, 1990

7/534749

Bryan T. Spofford - Denver CO
Kent L. Christopher - Denver CO
Michael E. Hovanes - Denver CO

A61M 1600, A62B 906

12820729

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 atmospheric breathing; flexible oxygen supply tube devices for supplying oxyen from said oxygen supply source to the patient; and a continuous one-piece constant diameter flexible elongated tracheal tube member having a continuous constant diameter passage extending therethrough and being flexible when inserted into an operative position within the trachea to provide therein an intermediate curved side wall portion extending between a proximate end side wall portion having an unrestricted inlet opening therein located posterior of the neck of a patient and a straight distal side wall portion located in the trachea and extending downwardly therein and having an unrestricted distal end outlet opening located in upwardly spaced relationship to the bronchial tubes of the patient.

5090408, Feb 25, 1992

Sep 28, 1987

7/101172

Bryan T. Spofford - Denver CO
Kent L. Christopher - Denver CO
Michael E. Hovanes - Denver CO

A61M 1600

12820714

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 atmospheric breathing; flexible oxygen supply tube devices for supplying oxygen from said oxygen supply source to the patient; and a continuous one-piece constant diameter flexible elongated tracheal tube member having a continuous constant diameter passage extending therethrough and being flexible when inserted into an operative position within the trachea to provide therein an intermediate curved side wall portion extending between a proximate end side wall portion having an unrestricted inlet opening therein located posterior of the neck of a patient and a straight distal side wall portion located in the trachea and extending downwardly therein and having an unrestricted distal end outlet opening located in upwardly spaced relationship to the bronchial tubes of the patient.

5181509, Jan 26, 1993

Oct 29, 1991

7/784123

Bryan T. Spofford - Denver CO
Kent L. Christopher - Denver CO

A61M 1600

128207140

Apparatus including a series of kits containing apparatus for use in the placement of specific transtracheal catheters for varying periods, including a transtracheal catheter suitable for in-dwelling long-term oxygen supplementation therapy for patients with chronic obstructive pulmonary disease, by its size, perforation location and cleanability, and a method for placement.