04625712 is referenced by 275 patents and cites 16 patents.

Full-flow cardiac assist is provided for cardiogenic shock patients without major surgery by a miniature axial-flow pump which can be inserted into the heart through the femoral artery and driven via a flexible cable from an external power source. The cable is contained within the catheter attached to the pump. The catheter also provides a conduit to supply the pump bearings with a blood-compatible purge fluid at a rate and pressure sufficient to prevent thrombus formation and introduction of blood elements between rotating and stationary elements of the pump. Due to the very small diameter of the pump, rotational speeds on the order of 10,000 to 20,000 rpm can be used to produce a blood flow on the order of about four liters per minute without significant hemolysis.

Title
High-capacity intravascular blood pump utilizing percutaneous access
Application Number
6/537244
Publication Number
4625712
Application Date
September 28, 1983
Publication Date
December 2, 1986
Inventor
Richard K Wampler
Rancho Cordova
CA, US
Agent
Weissenberger and Peterson
Assignee
Nimbus
CA, US
IPC
A61F 1/24
View Original Source