Syringe for a combined dental irrigator and vacuum device

Details Syringe for a combined dental irrigator and vacuum device Syringe for a combined dental irrigator and vacuum device

2006-12-29

2009-06-23

Lewis, Ralph A (Department: 3732)

Dentistry

Apparatus

Having intra-oral dispensing means

C433S080000, C433S224000, C222S631000, C222S633000, C222S209000, C417S472000, C417S571000

Reexamination Certificate

active

07549861

ABSTRACT:
A combined irrigator-vacuum device includes a pump assembly mountable over a syringe or device body. The device body has a dividing wall which divides the body into a clean chamber and a waste chamber. Openings are formed at the bottom of the body to provide an inlet into said waste chamber and an outlet from said clean chamber. The pump assembly includes a housing and a compressible cover defining a pump chamber. A vacuum valve and an irrigation valve are positioned within the pump chamber above the syringe waste chamber and clean chamber, respectively. The pump is operable such that compression of the cover causes irrigant fluid to be ejected from the clean chamber and release of the cover causes used irrigant to be vacuumed into the waste chamber. The device can be selectively switchable between an irrigation-vacuum mode, an irrigation-only mode and a vacuum-only mode.

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European Search Report form corresponding European Patent Application No. EP 07124010.5 mailed Apr. 16, 2008.

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