초록 ▼

The automatic check valve is proposed to be used with male luer fittings which are the standard on many medical applications. The valve body is a piece of resilient tubing into which a stopper having an oval sealing ring is placed. Inserting the round male luer fitting causes the tube to be made rou

The automatic check valve is proposed to be used with male luer fittings which are the standard on many medical applications. The valve body is a piece of resilient tubing into which a stopper having an oval sealing ring is placed. Inserting the round male luer fitting causes the tube to be made round releasing the seal of the stopper at two points on the minor axis of the oval shape.

대표청구항 ▼

A check valve to govern fluid flow in tubing said tubing being resilient and elastic enough to be distorted by an axially tapered plug said plug being essentially oval in cross section at least at one end and having dimensions such that the major axis distorts the tubing into which the plug is insta

A check valve to govern fluid flow in tubing said tubing being resilient and elastic enough to be distorted by an axially tapered plug said plug being essentially oval in cross section at least at one end and having dimensions such that the major axis distorts the tubing into which the plug is installed into a flattened shape with a minor axis dimension considerable smaller than the tubing diameter so that a rigid tube or other device of slightly larger outer diameter than the tubings inner diameter when inserted into said resilient tube causes the resilient tubing to take the shape and size of the rigid tube at the minor axis of the plug thereby partially separating the resilient tubing from sealing contact with the tapered plug forming a passage for fluid flow past the tapered plug until the rigid tube is removed and the resilient tubing again returns to tight contact with the tapered plug thereby closing the flow passage.