Patent ID: 9126029
Filing Date: 2015-09-08
Classification: A61M

Abstract:
1. A medical fluid connector configured to inhibit disconnection, comprising: a proximal region comprising an end cap portion and a distally extending plunger, an inside surface of the distally extending plunger configured to be in contact with medical fluid passing through the connector when in use; an intermediate portion comprising a proximally extending wall, an inside surface of the proximally extending wall configured to be in contact with medical fluid passing through the connector; an o-ring contacting both a portion of the distally extending plunger and a portion of the proximally extending wall in a region where the distally extending plunger and the proximally extending wall overlap; and wherein the medical fluid connector comprises a first stage in which the plunger and the intermediate portion are not capable of rotating with respect to each other, and the medical fluid connector comprises a second stage in which the plunger and the intermediate portion are capable of rotating with respect to each other, the transition from the first stage to the second stage being configured to be actuated by advancement of a medical implement at the proximal region of the medical fluid connector; and wherein rotation between the plunger and the intermediate portion is configured to inhibit disconnection of the medical fluid connector from the medical implement.