US 11,724,089 B2
Intravascular blood pump systems and methods of use and control thereof
Joshua Wallin, San Jose, CA (US); Adnan Merchant, Fremont, CA (US); Gerald Lyons, Saratoga, CA (US); Bertold Engler, Munich (DE); Tom Peach, Milan (IT); Andrea Besana, Campbell, CA (US); and James Luther, Minneapolis, MN (US)
Assigned to Shifamed Holdings, LLC, Campbell, CA (US)
Filed by Shifamed Holdings, LLC, Campbell, CA (US)
Filed on Sep. 25, 2020, as Appl. No. 17/33,482.
Claims priority of provisional application 62/905,746, filed on Sep. 25, 2019.
Claims priority of provisional application 62/905,802, filed on Sep. 25, 2019.
Prior Publication US 2021/0252271 A1, Aug. 19, 2021
Int. Cl. A61M 60/117 (2021.01); A61M 60/237 (2021.01); A61M 60/126 (2021.01); A61M 60/808 (2021.01); A61M 60/857 (2021.01); A61M 60/865 (2021.01); A61M 60/81 (2021.01); A61M 60/585 (2021.01); A61M 60/531 (2021.01); A61M 60/847 (2021.01); A61M 60/279 (2021.01); A61M 60/109 (2021.01); A61M 60/851 (2021.01)
CPC A61M 60/117 (2021.01) [A61M 60/109 (2021.01); A61M 60/126 (2021.01); A61M 60/237 (2021.01); A61M 60/279 (2021.01); A61M 60/531 (2021.01); A61M 60/585 (2021.01); A61M 60/808 (2021.01); A61M 60/81 (2021.01); A61M 60/847 (2021.01); A61M 60/851 (2021.01); A61M 60/857 (2021.01); A61M 60/865 (2021.01)] 9 Claims
OG exemplary drawing
 
1. A removable cassette for use with an external console to facilitate and control fluid flow in an intravascular blood pump, comprising:
a cassette housing,
a plurality of fluid inlets in the cassette housing,
a valve fluidly coupled to the plurality of fluid inlets and being configured to create a flow path between one of the plurality of fluid inlets and an output of the valve,
a sensor fluidly coupled to the output of the valve, the sensor being configured to sense a parameter of a flow of fluid from the output of the valve,
a fluid connection in the cassette housing configured to place the removable cassette in fluidic communication with the intravascular blood pump when the removable cassette is coupled to the external console,
a catheter fluid pathway and a sheath fluid pathway configured to receive the flow of fluid from the output of the valve and to provide the flow of fluid to the fluid connection,
a waste fluid pathway configured to receive return fluid from the fluid connection and direct the return fluid through the cassette housing to a waste outlet,
the cassette housing having first, second, and third openings formed on a first side thereof to provide physical access to the catheter fluid pathway, the sheath fluid pathway, and the waste fluid pathway, respectively, to allow for separate physical compression of the catheter, sheath, and waste fluid pathways to control the flow of fluid therethrough.