US 12,447,324 B2
Hemostasis valve seal
Firas Al-Ali, Hudson, OH (US); and Jeff Christian, Morgan Hill, CA (US)
Assigned to Cygnusmed, Inc., Akron, OH (US)
Filed by Cygnus Medical LLC, Akron, OH (US)
Filed on Jan. 14, 2022, as Appl. No. 17/575,780.
Application 17/575,780 is a continuation in part of application No. 16/784,735, filed on Feb. 7, 2020, granted, now 11,376,408.
Application 16/784,735 is a continuation in part of application No. 15/782,664, filed on Oct. 12, 2017, granted, now 10,625,067, issued on Apr. 21, 2020.
Claims priority of provisional application 63/187,074, filed on May 11, 2021.
Claims priority of provisional application 62/407,258, filed on Oct. 12, 2016.
Prior Publication US 2022/0168554 A1, Jun. 2, 2022
Int. Cl. A61M 39/06 (2006.01)
CPC A61M 39/0606 (2013.01) [A61M 2039/062 (2013.01); A61M 2039/0653 (2013.01); A61M 2039/0686 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A seal for a hemostasis valve comprising,
an anti-prolapse member comprising a rigid frustoconical structure having an annular base flange and a central through-hole;
a first sealing member comprising a flexible conical structure having an annular base flange, a blunted apex axially aligned with the through-hole of the anti-prolapse member, a seam oriented through the blunted apex of the first sealing member, a first registering structure at a first position on an upstream face of the base flange of the first sealing member, and a second registering structure complementary to the first registering structure of the first sealing member and positioned on a downstream face of the base flange of the first sealing member at an angular offset of φ relative to the first registering structure of the first sealing member, wherein φ is an angle between 10° and 90°, wherein an upstream face of the first sealing member receives a downstream face of the anti-prolapse member; and
a second sealing member comprising a flexible conical structure having an annular base flange, a blunted apex axially aligned with the through-hole of the anti-prolapse member, a seam oriented through the blunted apex of the second sealing member, a first registering structure at a first position on an upstream face of the base flange of the second sealing member, and a second registering structure complementary to the first registering structure of the second sealing member and positioned on a downstream face the base flange of the second sealing member at an angular offset of φ relative to the first registering structure of the second sealing member, wherein φ is an angle between 10° and 90°, wherein an upstream face of the second sealing member receives a downstream face of the first sealing member, and wherein the second sealing member is oriented at an angular offset of φ relative to the first sealing member.