US 12,168,111 B2
Methods and devices for managing fluid pressure
Kathy Lee-Sepsick, Suwanee, GA (US); and Max S. Azevedo, Alpharetta, GA (US)
Assigned to Femasys Inc., Suwanee, GA (US)
Filed by Femasys Inc., Suwanee, GA (US)
Filed on Aug. 23, 2023, as Appl. No. 18/237,289.
Application 18/237,289 is a continuation of application No. 18/086,277, filed on Dec. 21, 2022, granted, now 11,806,500.
Application 18/086,277 is a continuation of application No. 16/902,837, filed on Jun. 16, 2020, granted, now 11,583,625, issued on Feb. 21, 2023.
Application 16/902,837 is a continuation of application No. 13/292,990, filed on Nov. 9, 2011, granted, now 10,737,014, issued on Aug. 11, 2020.
Claims priority of provisional application 61/411,856, filed on Nov. 9, 2010.
Prior Publication US 2023/0405215 A1, Dec. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 6/00 (2024.01); A61B 8/08 (2006.01); A61M 5/00 (2006.01)
CPC A61M 5/00 (2013.01) [A61B 6/481 (2013.01); A61B 8/481 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for administering to a subject an imaging fluid by an imaging fluid creation and delivery device comprising:
(i) a first syringe filled with a fluid, and a second syringe filled with air, each in fluid connection with an exit port comprising at least an attachment element, each syringe having a plunger slidably disposed therein, and configured to be moved simultaneously; wherein the first syringe was filled by taking a fluid into the device through the exit port comprising at least the attachment element and the second syringe was filled simultaneously by taking air into the second syringe, and the device is configured to create and deliver an imaging fluid comprising a mixture of the fluid and air out of the device through the exit port comprising the at least an attachment element; and
(ii) a pressure relief valve in fluid connection between the exit port comprising the at least an attachment element and the syringes, wherein the pressure relief valve is configured to move from a closed state to an open state at a predetermined fluid pressure; the method comprising,
a) attaching the exit port comprising the at least an attachment element to a proximal end of a catheter;
b) positioning the catheter's distal end at a target site of at least one fallopian tube or uterus;
c) simultaneously moving the two plungers distally to move the fluid and air from the respective syringes and to mix the fluid and air to form the imaging fluid; and
d) delivering the imaging fluid at or near the target site of the at least one fallopian tube or uterus, at or below the predetermined pressure.