US 11,850,386 B2
Inflation devices and systems for balloon catheters and methods for use
Archimedes Sanati, Campbell, CA (US); Jake Wolenberg, Santa Clara, CA (US); Fred H. Co, Santa Clara, CA (US); Yi Yang, San Francisco, CA (US); and Farhad Khosravi, Los Altos Hills, CA (US)
Assigned to OSTIAL CORPORATION, Campbell, CA (US)
Filed by Ostial Corporation, Campbell, CA (US)
Filed on Oct. 3, 2019, as Appl. No. 16/592,739.
Claims priority of provisional application 62/740,883, filed on Oct. 3, 2018.
Prior Publication US 2020/0108234 A1, Apr. 9, 2020
Int. Cl. A61M 25/10 (2013.01); A61F 2/958 (2013.01); A61M 29/02 (2006.01)
CPC A61M 25/10185 (2013.11) [A61F 2/958 (2013.01); A61M 25/1011 (2013.01); A61M 25/10182 (2013.11); A61M 29/02 (2013.01); A61M 2025/1013 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An inflation device for selectively inflating and deflating first and second balloons on a tubular member via first and second lumens when the inflation device is coupled to the tubular member, the inflation device comprising:
a first valve comprising a plurality of first valve ports and a first valve member movable between multiple positions for opening and closing fluid paths between the first valve ports;
a second valve comprising a plurality of second valve ports and a second valve member movable between multiple positions for opening and closing fluid paths between the second valve ports; and
an actuator coupled to the first and second valve members for simultaneously directing the first and second valve members sequentially between first, second, third, and fourth positions, wherein:
i) with the first and second valve members in the first position, a fluid path is provided from a source of inflation media coupled to one of the first valve ports to the first and second lumens such that, the source of inflation media may be actuated to pull a vacuum along the fluid path to collapse the first and second balloons simultaneously;
ii) with the first and second valve members in the second position, the second lumen is isolated while a fluid path between the first lumen and the source of inflation media is open such that inflation media delivered from the source of inflation media through the first lumen inflates the first balloon;
iii) with the first and second valve members in the third position, the first lumen is isolated for maintaining the first balloon inflated; and
iv) with the first and second valve members in the fourth position, a fluid path from the source of inflation media to the second lumen is open while the first lumen remains isolated such that inflation media delivered from the source of inflation media through the second lumen inflates the second balloon.