Merit Medical Systems, Inc.

Jerry L Trujillo

Fred P Lampropoulos

M Mary Sinnott

Jim D Mottola

Arlin Dale Nelson

Marshall T Denton

Andy E Poursaid

Joseph E Biche

Stephen W Carlstrom

Darwin L Mullins

Larry B Mitton

A fluid infusion system includes a pump having a body that slidably interacts with a handle. The body includes a valve housing fluid coupled with an inlet passageway, an outlet passageway, and a dispensing barrel. A finger rest rigidly projects from the dispensing barrel. A loading chamber is recessed within the finger rest and is configured to receive a fluid supply syringe. A plunger, mounted to the handle, is slidably received within the dispensing barrel. As the plunger is advanced within the barrel, fluid is dispensed from the pump. As the plunge is retracted within the barrel, the barrel is automatically filed with a fluid. The nozzle of the pump is fluid coupled to a hemostasis valve which is in turn fluid coupled to an infusion catheter. The infusion catheter has a distal end with an enlarged tip opening and a plurality of small infusion holes extending through the side thereof. An annular sensing ridge radially inwardly projects from the interior of the catheter at the tip opening. An occluding wire has an enlarged occluding ball positioned at the end thereof and is configured to occlude the distal end of the catheter. Projecting from the occluding ball on the side opposite of the positioning wire is a coiled spring wire. The spring wire vibrates against the sensing ridge as it passes therethrough.

Pulse fluid infusion systems

A hand operated, fluid dispensing pump includes a body that slidably interacts with a handle. The body includes a valve housing fluid coupled with an inlet passageway, an outlet passageway, and a dispensing barrel. A finger rest rigidly projects from the dispensing barrel. A loading chamber is recessed within the finger rest and is configured to receive a fluid supply syringe. A plunger, mounted to the handle, is slidably received within the dispensing barrel. As the plunger is advanced within the barrel, fluid is dispensed from the pump. Once the plunger is fully advanced, a spring disposed between the body and the handle automatically retracts the plunger within the barrel. As the plunger is retracted within the barrel, the barrel is automatically filled with a fluid from the fluid supply syringe.

One-hand pulse pump

A connector for connecting two catheters and permitting the catheters to rotate relatively, the connector having a collar, a hub and a rotator, the hub and the rotator having an O-Ring therebetween. The rotator overlays the hub and has an internal surface that has a shape that is contoured to the shape of the O-Ring to make a seal therebetween. The hub has a surface at an end thereof with a projection thereon that biases the O-Ring into a sealing contact with the internal contoured surface of the rotator. The collar prohibits the hub from withdrawing from its overlaid position within the rotator by overhanging a surface extending radially from the hub. The hub receives a catheter, at the end opposite its contact with the O-Ring, the catheter wedging within the hub. The rotator received a catheter by an end having a luer lock with a common longitudinal axis about which they are all preferably symmetrical. Each component, including the O-Ring is preferably concentrically aligned.

Rotatable bubble-free connector

Growing community of inventors

Ogden, UT, United States of America

Jerry L Trujillo