Robert T Johnson
Engineers in Sandy, UT

5678557, Oct 21, 1997

Aug 16, 1996

8/699136

Gordon S. Reynolds - Bountiful UT
Robert H. Johnson - Sandy UT

Abbott Laboratories - Abbott Park IL

A61B 500

128673

A flush device for an intravenous blood pressure monitoring system has a main body which includes a continuous flow channel and a fast flush channel. The continuous flow channel is integral with the main body and includes an inlet, a closed end which receives a laser drilled hole for fluid output, and an outlet. The continuous flow channel is separated from the fast flush channel by a median wall. An opening in the median wall is blocked by an elastomeric member disposed in an initial position in the fast flush channel. When the member is distended, the opening is unblocked, and fluid flow from the inlet to the outlet is through the fast flush channel. An alternative embodiment of the fast flush device has a tubular body with a capillary channel formed on an inner wall. An elastomeric member contained within the tubular body restricts flow to the capillary channel when the elastomeric member is in an initial position. When the elastomeric member is in a distended position fluid is allowed to overflow the capillary channel thus permitting either a fast flush flow between a source of medical fluid and the outlet on the fast flush device which is in fluid communication with the catheter.

4650477, Mar 17, 1987

Sep 13, 1985

6/775846

Robert H. Johnson - Sandy UT

Sorenson Research Co. Inc. - Salt Lake City UT

A61M 100

604321

A suction drainage system for body cavities includes a suction collection container, and a disposable suction control chamber through which an essentially constant level of suction is applied to a body cavity. Drained fluids flow into the suction collection container, into the suction control chamber through an elastomeric check valve which precludes backflow of fluids to the patient. A pressure monitoring tube in the suction control chamber has a lower end communicating with ambient pressure and an upper end communicating with the interior of the suction control chamber. A ball in the tube rises to a level which is proportional to the negative pressure inside the suction control chamber. The suction control chamber can be removably mounted to the collection container.

2004013, Jul 15, 2004

Nov 7, 2003

10/703833

R. Johnson - Sandy UT, US
Robert Johnson - Sandy UT, US
Jonathan Johnson - Midvale UT, US
Jayson Johnson - Salt Lake City UT, US
Susan Johnson - Salt Lake City UT, US
Ronald Johnson - Salt Lake City UT, US

A41G001/00

428/018000

A display representing a tree, such as a Christmas tree, has a trunk made of a hollow tube and held by a base in substantially vertical position. A liquid, such as water, is placed in the tube and an air supply in or near the bottom of the tube generates bubbles that rise through the tube. The tube and bubbles therein are preferably illuminated to add to the effectiveness of the display. Illumination can be provided by LED's which avoid the heat of incandescent lamps. Branches are secured to the trunk tube and extend outwardly therefrom to support a foliage garland to provide tree foliage and give the display the appearance of a tree. The tree can be provided as a separate trunk tube portion, base, and foliage garland so the parts can be packed and shipped without the base attached to the tube.

4224943, Sep 30, 1980

Jan 24, 1979

6/006053

Robert H. Johnson - Sandy UT
Dixon A. Ford - Farmington UT
Gordon S. Reynolds - Bountiful UT
James L. Sorenson - Salt Lake City UT

Sorenson Research Co., Inc. - Salt Lake City UT

A61M 500

1282144

A cannula and method for bidirectional blood flow, the cannula being constructed so as to provide a bifurcated flow path, each branch of the flow path independently communicating through telescoping cannulae and a venipuncture needle initially projecting beyond the exterior cannula to facilitate venipuncture and thereafter being displaceable away from the venipuncture site to permit unobstructed simultaneous fluid flow in opposite directions through each of the bifurcated flow paths.