Pump for powered irrigator for sinus cavity rinse

摘要

A powered irrigator for use in rinsing nasal cavities provides a main body having a handle and fluid reservoir detachably coupled to one another, an outlet nozzle extending from a top end of the handle, a pump mechanism operably coupled to a power source, and a switch operably coupled to the power source for turning the pump mechanism on and off, and when the switch turns on the pump mechanism, fluid flows from the fluid reservoir into a first fluid coupling between the reservoir and the pump mechanism and into a second fluid coupling between the pump mechanism to the outlet nozzle.

主权项

1. An irrigating device comprising:
a handle portion; a reservoir portion releasably connected to the handle portion; an outlet nozzle operably connected to the handle portion and fluidly connected to the reservoir by a fluid flow pathway; a pump received within the handle portion and configured to selectively pump fluid from the reservoir through the fluid pathway to the outlet nozzle, the pump including:
a motor;a drive shaft selectively rotatable by the motor and having a first axis of rotation;a cam mechanism operably connected to the drive shaft, having a second axis of rotation and configured to selectively rotate around a camshaft; a cam follower defining a cavity in which the cam mechanism is received; and a diaphragm operably connected to the cam follower; wherein the cam follower moves the diaphragm substantially transversely with respect to a longitudinal axis of the handle portion to provide fluid flow from the reservoir through the fluid flow pathway to the outlet nozzle; during an intake stroke the diaphragm is in a first position and during a compression stroke the diaphragm is in a second position; and the first axis of rotation of the drive shaft and the second axis of rotation of the cam mechanism have substantially the same orientation.