US 11,745,004 B1
Ventricular assist devices and methods
Adrian Beltrán Calva, Municipio Tlalnepantla (MX); Cynthia Denisse Anaya Romo, Municipio Tlalnepantla (MX); and Jesús Salvador Carlos Robles, Municipio Tlalnepantla (MX)
Assigned to VITALMEX INTERNACIONAL S.A. DE C.V., Municipio Tlalnepantla (MX)
Filed by VITALMEX INTERNACIONAL S.A. DE C.V., Municipio Tlalnepantla (MX)
Filed on Jul. 15, 2022, as Appl. No. 17/865,940.
Int. Cl. A61M 60/178 (2021.01); A61M 60/427 (2021.01); A61M 60/268 (2021.01); A61M 60/894 (2021.01)
CPC A61M 60/178 (2021.01) [A61M 60/268 (2021.01); A61M 60/427 (2021.01); A61M 60/894 (2021.01)] 14 Claims
OG exemplary drawing
 
1. A ventricular assist device for assisting in pumping blood to and from a heart comprising:
a pump housing defining an interior chamber, a pump inlet, a pump outlet and an airflow channel, the airflow channel being pneumatically connected to the interior chamber;
a cannula connector connected to the pump inlet or the pump outlet and configured to be inserted into a cannula;
a sac disposed in the interior chamber and connected to the pump inlet and the pump outlet, the sac defining an interior volume;
an airflow channel disposed through the pump housing and configured for flowing air into or out from the interior chamber, wherein air flowing into the interior chamber creates pressure on the sac to decrease the interior volume of the sac and air flowing out from the interior chamber decreases pressure on the sac to increase the interior volume of the sac; and
a cannula holder including a first clasp and a second clasp, the first clasp configured to fasten the cannula to the cannula connector and the second clasp configured to fasten the cannula holder to the cannula connector.