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The invention concerns a device for injection of dental filling material, comprising a feeding chamber and a delivery device with a first delivery means and a second delivery means, wherein the delivery means consist of a pump and the first and second delivery means are connected to a feed connection.
Such a device is known from EP 1 524 492 B1. This known device includes a pump which can be switched between a suction mode in which dental filling material is sucked into a feed channel, a delivery mode in which the dental filling material is conveyed from the feed channel and a resting mode in which the pump is returned into its rest position.
The disadvantage of this known device is that a pump is required to convey the dental filling material from the feed channel into the delivery device. Furthermore, the position of the pump is limited to the position in which the delivery device is attached to the reservoir.
U.S. Pat. No. 4,938,189 A1 discloses a device for injecting dental filling material. A feed channel, a delivery channel and a storage vessel are provided in this known device. The storage vessel has a U-shaped delivery channel and a pump is provided between the U-shaped delivery channel and the feed channel.
The disadvantage of this known device is that a pump is required to convey the dental filling material from the feed channel into the delivery channel. Furthermore, the position of the pump is limited to the position in which the delivery channel is connected to the feed channel.
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