Patent ID: 9629987
Date: 2017-04-25
CPC Classifications: A61M

Claim:
1. A flusher comprising: a body having an upstream port and a downstream port; a ventricle channel that extends from the upstream port to a flush valve chamber; a drain channel that extends from the downstream port to a refill valve chamber; a flush channel that extends from the flush valve chamber to a dome; a refill channel that extends from the refill valve chamber to the dome; a bypass channel that extends from the flush valve chamber to the refill valve chamber; a flush valve disposed in the flush valve chamber and configured to allow fluid communication between the flush channel and the ventricle channel when a pressure differential cross the flush valve exceeds a predetermined threshold; a refill valve disposed in the refill valve chamber and configured to allow fluid to flow from the bypass channel into the refill channel and prevent fluid from flowing from the refill channel into the bypass channel; and a bypass valve disposed in the bypass channel configured to prevent fluid flow through the bypass channel when the fluid pressure in the bypass channel exceeds a predetermined threshold; wherein the dome is collapsible to force fluid through the flush valve and the ventricle channel while causing the bypass valve to close to prevent fluid from being forced through the drain channel.