US 12,109,384 B2
Hemostasis valves and methods of use
Benjamin E. Merritt, San Clemente, CA (US); John C. Thress, Capistrano Beach, CA (US); and Paul Lubock, Monarch Beach, CA (US)
Assigned to Inari Medical, Inc., Irvine, CA (US)
Filed by Inari Medical, Inc., Irvine, CA (US)
Filed on Mar. 7, 2024, as Appl. No. 18/598,482.
Application 18/598,482 is a continuation of application No. 18/515,079, filed on Nov. 20, 2023.
Application 18/515,079 is a continuation of application No. 17/226,318, filed on Apr. 9, 2021, granted, now 11,844,921, issued on Dec. 19, 2023.
Application 17/226,318 is a continuation of application No. 16/117,519, filed on Aug. 30, 2018, granted, now 11,000,682, issued on May 11, 2021.
Claims priority of provisional application 62/554,931, filed on Sep. 6, 2017.
Prior Publication US 2024/0207593 A1, Jun. 27, 2024
Int. Cl. A61M 39/06 (2006.01); A61B 17/3207 (2006.01)
CPC A61M 39/0613 (2013.01) [A61B 17/3207 (2013.01); A61M 2039/062 (2013.01); A61M 2039/0673 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A valve assembly, comprising:
a tubular member defining a lumen;
a first filament extending in a first loop around the tubular member, wherein the first filament is flexible;
a second filament extending in a second loop around the tubular member, wherein the second filament is flexible;
a pair of actuators movable from a first position to a second position, wherein—
the first filament includes a first portion operably acted upon by a first one of the actuators and a second portion operably acted upon by a second one of the actuators;
the second filament includes a first portion operably acted upon by the first one of the actuators and a second portion operably acted upon by the second one of the actuators;
in the first position, the actuators are positioned to tension the first filament and the second filament thereby decreasing a dimension of the first loop and a dimension of the second loop to constrict the lumen of the tubular member;
in the second position, the actuators are positioned to loosen the first filament and the second filament thereby permitting the tubular member to expand against the first loop and the second loop to increase the dimension of the first loop and the dimension of the second loop to at least partially open the lumen of the tubular member; and
the actuators are biased to the first position.
 
15. A valve assembly, comprising:
a tubular member defining a lumen, wherein the tubular member is elastically deformable from a first position in which the lumen is constricted to a second position in which the lumen is at least partially open;
a first actuator;
a second actuator;
a first filament configured in a first loop completely around the tubular member and having a first portion extending from the first loop toward the first actuator and a second portion extending from the first loop toward the second actuator; and
a second filament configured in a second loop completely around the tubular member and having a first portion extending from the second loop toward the first actuator and a second portion extending from the second loop toward the second actuator;
wherein—
the first actuator and the second actuator are biased away from one another to elastically deform the tubular member to the first position by (a) increasing a tension in the first filament to decrease a dimension of the first loop and (b) increasing a tension in the second filament to decrease a dimension of the second loop; and
the first actuator and the second actuator are movable toward one another to permit the tubular member to return to the second position by (a) decreasing the tension in the first filament and (b) decreasing the tension in the second filament.
 
23. A valve assembly, comprising:
a tubular member defining a lumen;
a first filament extending in a first loop around the tubular member;
a second filament extending in a second loop around the tubular member; and
a pair of actuators biased to circumferentially constrict the first loop and the second loop to elastically deform the tubular member to a first position in which the lumen is constricted, wherein at least one the actuators is movable to decrease a level of tension in the first filament and a level of tension in the second filament to permit the tubular member to expand against the first loop and the second loop to a second position in which the lumen of the tubular member is at least partially open.