US 12,251,111 B2
Blood flow control devices, systems, and methods
Michael Austin Johnson, Holladay, UT (US); David Poisner, Carmichael, CA (US); Melanie McWade, Portland, OR (US); Timothy Williams, Winston-Salem, NC (US); and Lucas Neff, Winston-Salem, NC (US)
Assigned to Certus Critical Care, Inc., Salt Lake City, UT (US); and Wake Forest University Health Sciences, Winston-Salem, NC (US)
Filed by Certus Critical Care, Inc., Salt Lake City, UT (US); and Wake Forest University Health Sciences, Winston-Salem, NC (US)
Filed on Mar. 30, 2023, as Appl. No. 18/193,369.
Application 18/193,369 is a continuation of application No. 17/365,932, filed on Jul. 1, 2021, granted, now 11,633,192.
Application 17/365,932 is a continuation of application No. 17/203,742, filed on Mar. 16, 2021.
Claims priority of provisional application 62/990,302, filed on Mar. 16, 2020.
Prior Publication US 2023/0338037 A1, Oct. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/12 (2006.01); A61B 5/00 (2006.01); A61B 5/0215 (2006.01); A61B 34/00 (2016.01); A61B 17/00 (2006.01); A61B 34/20 (2016.01); A61B 90/00 (2016.01)
CPC A61B 17/12136 (2013.01) [A61B 5/02158 (2013.01); A61B 5/4836 (2013.01); A61B 17/12109 (2013.01); A61B 34/25 (2016.02); A61B 2017/00022 (2013.01); A61B 2017/00075 (2013.01); A61B 2017/00119 (2013.01); A61B 2017/00557 (2013.01); A61B 34/20 (2016.02); A61B 2090/064 (2016.02)] 25 Claims
OG exemplary drawing
 
1. A blood flow control system comprising:
a blood flow control device comprising an elongate body, a balloon coupled to an end portion of the elongate body, a first sensor coupled to the elongate body proximal to the balloon, and a second sensor coupled to the elongate body distal to the balloon, wherein the balloon is configured for placement within a blood vessel of a patient;
a controller communicably coupled to the first and second sensors, wherein the controller comprises a housing; and
a syringe pump in fluid communication with the balloon and releasably coupled to the housing of the controller, wherein the syringe pump comprises a barrel and a plunger, and is configured to be:
manually actuated for at least an initial manual actuation;
decoupled from the housing of the controller and manually actuated to adjust a volume of the balloon; and
coupled to the housing of the controller and actuated by the controller to adjust the volume of the balloon,
wherein the controller is configured to determine a maximum allowable inflation level for the balloon for a procedure based on a position of the pump when a barrel of the pump is coupled to the housing after the initial manual actuation, and to automatically adjust a volume of the balloon based on: a) measurements from one or more of the first sensor and the second sensor and b) a target blood pressure or blood pressure range contained on the controller.