| 摘要 |
<p num="1"><br/><br/><br/>A reciprocating syringe that can be used in connection with existing syringe <br/>barrels and fittings. Some embodiments comprise a frame, adapted to retain two <br/>existing syringe barrels. The frame can accommodate fittings on one or both <br/>barrels. The invention also provides a plunger complex, comprising two <br/>plungers, each adapted for use with one of the syringe barrels. The two <br/>plungers are coupled such that pushing of each plunger into its barrel causes <br/>the other plunger to pull outwards relative to its barrel. The two plungers <br/>can be coupled by a flexible line attached to one plunger, routed from the <br/>plunger out of the corresponding barrel into the other barrel, and attached to <br/>the other plunger. The invention contemplates various frame configurations to <br/>accommodate desired line and pulley performance characteristics. Other <br/>embodiments comprise a frame adapted to retain an existing syringe barrel, and <br/>an auxiliary actuator mounted with the frame. Such an actuator can provide a <br/>syringe-like plunger operation, or can comprise other manipulable structures. <br/>The auxiliary actuator can be coupled to a plunger adapted for use with the <br/>syringe barrel, such that pushing the plunger into the barrel causes the <br/>actuator to move in a reversible manner, and moving the actuator in the <br/>reverse manner causes the plunger to pull outwards relative to its barrel. The <br/>invention also comprises various materials, methods of making, geometries and <br/>arrangements of parts, and accommodation of various specific existing syringe <br/>designs and applications.<br/>
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