US 11,986,619 B2
Needleless connector having check valve with lip seal
Raymond Feith, Chino Hills, CA (US); and Chris J. Zollinger, Chino Hills, CA (US)
Assigned to CareFusion 303, Inc., San Diego, CA (US)
Filed by CareFusion 303, Inc., San Diego, CA (US)
Filed on Jul. 30, 2020, as Appl. No. 16/943,885.
Prior Publication US 2022/0032031 A1, Feb. 3, 2022
Int. Cl. A61M 39/24 (2006.01); A61M 39/26 (2006.01)
CPC A61M 39/24 (2013.01) [A61M 2039/267 (2013.01); A61M 2205/0216 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A valve member for a connector, the valve member comprising:
a head portion including a top section, an outer side surface, at least one notch, and a circumferential lip seal, the top section defining a top surface and a first seal portion, the first seal portion extending radially outward from the outer side surface, the at least one notch extending into the outer surface, and the circumferential lip seal comprising a flexible member extending radially outward relative to the outer side surface; and
a body portion extending longitudinally from the head portion to a distal end of the body portion, the body portion forming a flange at the distal end of the body portion, and a second seal portion at a proximal end of the body portion and distal to the first seal portion;
wherein the circumferential lip seal is disposed between the first and second seal portions, and extends radially outward from the outer side surface of the head portion to an outer perimeter of the circumferential lip seal that is continuous around the entire circumference of the head, such that the circumferential lip seal can deflect toward or away from the first seal portion, and the at least one notch is disposed between the circumferential lip and the second seal portion.