| 摘要 |
A dual action syringe which comprises a hollow body (11) defining a rear chamber and a front chamber, wherein the rear chamber has a greater internal cross-sectional area than the front chamber, a double action plunger mechanism comprising a primary plunger (20) with a cross section which matches the internal cross section of the rear chamber and a secondary plunger (23) telescopically mounted within the primary plunger and having a cross section which matches the internal cross section of the front chamber, the proximal end of the secondary plunger extending beyond the proximal end of the primary plunger and terminating in a handle (24) which enables the plunger mechanism to be slidably moved relative to the hollow body.
|
