MR. MICHAEL PATRICK KELLY, RPH. MBA
Pharmacy at 500, Salt Lake City, UT

5084031, Jan 28, 1992

Sep 12, 1989

7/406382

Robert J. Todd - Salt Lake City UT
Douglas L. Smith - Murray UT
Michael N. Kelly - Salt Lake City UT

Research Medical, Inc. - Midvale UT

A61M 500

604248

A three-way double stopcock and associated tubing is disclosed with which to connect both a cardioplegia solution source and a pressure monitor for the solution selectively and alternatively to either an antegrade cardioplegia catheter or a retrograde cardioplegia catheter. The stopcock includes a hollow valve body with three solution infusion ports communicating to the interior thereof in a coplanar arrangement at a first longitudinal point on the valve body. Three cardioplegia pressure monitoring ports also communicate through the valve body to the interior thereof at a second longitudinal position distinct from the first. Mounted in the valve body is a cylindrical valve core selectively rotatable about the longitudinal axis thereof between a first position in which the cardioplegia solution source and the pressure monitor are coupled to the antegrade cannula and a second position in which the cardioplegia solution source and the pressure monitor are coupled to the retrograde catheter. Formed in the valve core are a set of valving passageways for communicating with selective of the infusion ports and a set of valving passageways for communicating with selective of the pressure monitoring ports.

4639252, Jan 27, 1987

Apr 5, 1985

6/720172

Michael N. Kelly - Salt Lake City UT
John B. Foster - Rolling Hills Estates CA
Robert D. Foster - San Pedro CA

Research Medical, Inc. - Salt Lake City UT

A61M 2500

604282

A venous return catheter is provided having a first diameter distal portion suitable for insertion in a vena cava, a second, larger diameter proximal portion, and a transition portion forming a smooth transition between the first and second diameter portions. Drainage openings are provided in both the proximal and distal catheter portions. The catheter is of unitary construction, having a smooth bore through its entire length. It is also constructed from a soft, resilient material, but is reinforced with a harder, stiffer material in the region of the proximal drainage openings. The catheter may also be provided with wire reinforcement. The catheter is manufactured by a dip-molding process utilizing a male mandrel as a form.