公开(公告)号：EP4413948A1

公开(公告)日：2024-08-14

申请号：EP22879004.4

申请日：2022-10-20

申请人： Sharafutdinova, El'vira Nurfikatovna

发明人： Sharafutdinova, El'vira Nurfikatovna

IPC分类号： A61C5/64 ,  B01F101/19 ,  A61M5/178

CPC分类号： B01F2101/1920220101 ,  A61C5/64 ,  A61M5/178

摘要： A single-use syringe intended for mixing and dispensing dual-component dental materials. The syringe comprises two cylindrical housings and a tubular cannula connected to said housings via a mixing chamber. Disposed in the cavities of said housings are pistons with rods. The ends of the rods are joined by an end connector for finger support. The pistons are provided with O-rings made of an elastic material. Said rings are disposed at the ends of the pistons facing the mixing chamber. Pointed tubular elements arranged in the mixing chamber are designed to pierce the ends of outlet channels of the cavities of the cylindrical housings. The other ends of the pistons are provided with conical guide recesses for orienting tapered ends of the rods, said rods also being provided with annular shoulders for interacting with the end walls of the cylindrical housings. Each cylindrical housing has, at the end facing the mixing chamber, an inner annular retaining groove for an O-ring, the diameter of which is greater than half the depth of the groove.