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发明授权
US08574196B2 Anesthetic syringe having a longitudinally displaceable feeding piston and check valve having passage and blocking device 失效
麻醉注射器具有纵向位移的进料活塞和具有通道和阻塞装置的止回阀

Anesthetic syringe having a longitudinally displaceable feeding piston and check valve having passage and blocking device
摘要：
The invention relates to a syringe, particularly an anesthetic syringe, having a longitudinally displaceable feeding piston disposed over a first hydraulic chamber, and a second hydraulic chamber, wherein the first and second hydraulic chambers are connected by means of a first control element for regulating resistance, wherein the first control element can be actuated by a switch element, wherein the first control element comprises a first check valve.
摘要（中）：

本发明涉及一种注射器，特别是麻醉注射器，其具有设置在第一液压室上的纵向位移进给活塞和第二液压室，其中第一和第二液压室通过用于调节阻力的第一控制元件连接 ，其中所述第一控制元件可由开关元件致动，其中所述第一控制元件包括第一止回阀。

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