Researchers Submit Patent Application, "Ventricular Assist Device With Motion-Cushioning Spring", for Approval (USPTO 20240245903).

A patent application has been submitted for a ventricular assist device that aims to help patients with a failing heart or those at risk during coronary interventions. The device includes a motion-cushioning spring that acts as a shock absorber for the impeller's back-and-forth motion. It also features a distal thrust bearing to prevent axial motion of the impeller in response to pressure changes. The patent application provides detailed descriptions and claims for different configurations and features of the device, including an elastomeric material covering part of the axial shaft, a purging system, and a pump-outlet tube. [Extracted from the article]