| 摘要 |
The invention relates to an injection device ( 1 ), especially for bone cement, comprising A) a syringe base ( 3 ) having a longitudinal axis ( 2 ), a front end ( 6 ), a connecting piece ( 8 ) disposed on the front end ( 6 ) and having a coaxial bore ( 21 ), and a coaxial cavity ( 4 ); B) an injection plunger ( 5 ), coaxially displaceable in the cavity ( 4 ); and C) a cannula ( 13 ) which can be linked with the connecting piece ( 8 ) and which has a center bore ( 14 ) and a rear end ( 15 ). The injection device is characterized in that D) the syringe base ( 3 ), on its front end ( 6 ), has a transition segment ( 22 ) having a bore ( 9 ) linking the cavity ( 4 ) with the bore ( 21 ) in the connecting piece ( 8 ), E) the bore ( 9 ) in the transition segment ( 22 ) and the center bore ( 14 ), at least on the rear end ( 15 ) of the cannula ( 13 ), having the same orthogonal cross-sectional area q relative to the longitudinal axis ( 2 ).
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