| 摘要 |
A combined irrigator-vacuum device (10) includes a pump assembly (14) mountable over a syringe or device body (12). The device body has a dividing wall (22) which divides the body into a clean chamber (24a) and a waste chamber (24b). Openings are formed at the bottom of the body to provide an inlet (30) into said waste chamber and an outlet (32) from said clean chamber. The pump assembly (14) comprises a housing (40) and a compressible cover (90) defining a pump chamber (99). A vacuum valve and an irrigation valve (62,64) are positioned within the pump chamber (99) above the syringe waste chamber and clean chamber, respectively. The pump (14) is operable such that compression of the cover (90) causes irrigant fluid to be ejected from the clean chamber (24a) and release of the cover (90) causes used irrigant to be vacuumed into the waste chamber (24b). The device (10) can be selectively switchable between an irrigation-vacuum mode, an irrigation-only mode and a vacuum-only mode. |
