US 12,070,228 B2
Methods of constructing hemostasis devices with folded balloon assemblies
Victoria Moore O'Brien, Sewell, NJ (US); Brian Hoffman, Princeton, NJ (US); Kenichi Hazama, Bear, DE (US); and Nicholas Varamo, Hockessin, DE (US)
Assigned to TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Appl. No. 17/424,929
Filed by TERUMO KABUSHIKI KAISHA, Tokyo (JP)
PCT Filed Feb. 28, 2020, PCT No. PCT/US2020/020500
§ 371(c)(1), (2) Date Jul. 22, 2021,
PCT Pub. No. WO2020/180731, PCT Pub. Date Sep. 10, 2020.
Claims priority of provisional application 62/812,436, filed on Mar. 1, 2019.
Prior Publication US 2022/0087689 A1, Mar. 24, 2022
Int. Cl. A61B 17/135 (2006.01); A61B 17/132 (2006.01); A61B 17/00 (2006.01); A61B 17/12 (2006.01); A61M 39/10 (2006.01)
CPC A61B 17/135 (2013.01) [A61B 17/1325 (2013.01); A61B 2017/00526 (2013.01); A61B 2017/12004 (2013.01); A61M 2039/1094 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of constructing a hemostasis device, the method comprising:
forming a balloon assembly by attaching a top layer of material, a bottom layer of material, and at least one intermediate layer of material together about a perimeter to form at least a portion of a first chamber, at least a portion of a second chamber and at least a portion of at least one channel, the at least one channel being in fluid flow communication between the first chamber and the second chamber, the first chamber and the second chamber being inflatable, the at least one intermediate layer creating a gap between the top layer of material and the bottom layer of material adjacent to the perimeter; and
connecting the balloon assembly to a flexible band that is attachable around a body part of a patient, the flexible band including opposite end portions and an intermediate portion positioned between the opposite end portions; and
the connecting of the balloon assembly to the flexible band including connecting the balloon assembly to the intermediate portion of the flexible band so that the first and second chambers overlie the intermediate portion of the flexible band and so that the opposite end portions of the flexible band extend outwardly beyond opposite ends of the balloon assembly, the hemostasis device having, after the balloon assembly is connected to the flexible band, the first and second chambers in fluid communication with one another by the at least one channel and positioned in overlying relation to one another.