US 12,390,249 B2
Access sheath with valve assembly
Donald Richard Arnold, Montrose, PA (US); and Nathaniel Haim Maor, Chester Springs, PA (US)
Assigned to Teleflex Life Sciences LLC, Wilmington, DE (US)
Filed by Teleflex Life Sciences LLC, Wilmington, DE (US)
Filed on Jul. 31, 2020, as Appl. No. 16/944,778.
Prior Publication US 2022/0031353 A1, Feb. 3, 2022
Int. Cl. A61B 17/34 (2006.01)
CPC A61B 17/3423 (2013.01) [A61B 17/3498 (2013.01)] 35 Claims
OG exemplary drawing
 
1. An access sheath configured to be disposed along a guidewire into a puncture of a vessel, the access sheath comprising:
a hub having a proximal end and a distal end spaced from the proximal end;
a cartridge carried by the hub, the cartridge including:
a first valve,
a second valve spaced from the first valve along a central axis, and
a cartridge body defining an internal surface and defining a spacer extending inwardly from the internal surface, the spacer disposed between the first valve and the second valve,
wherein:
the first valve includes a valve body having a first slit and a second slit that intersect each other and twist about the central axis,
the second valve includes a valve body having a first slit and a second slit that intersect each other and twist about the central axis,
the first slit of the valve body of the first valve and the first slit of the valve body of the second valve are oriented in substantially the same direction diametrically across the respective valve body,
the second slit of the valve body of the first valve and the second slit of the valve body of the second valve are oriented in substantially the same direction diametrically across the respective valve body, and
the cartridge body is open at longitudinal ends so that the first valve is inserted into a first longitudinal end of the cartridge body distal to the spacer, and the second valve is inserted into a second longitudinal end of the cartridge body proximal to the spacer; and
a shaft assembly having a shaft hub coupled to the hub, and a shaft that extends from the shaft hub in a distal direction;
wherein the first valve and the second valve include at least one set of tabs disposed on a distal surface of each valve body and configured to couple the first valve to the shaft hub and the second valve to the hub, respectively.