Actuator and device for synchronized injection and aspiration

1. A device comprising a housing fitted to hold standard-size syringes and an actuator for synchronized injection and aspiration, comprising:

wherein the actuator comprises

a first rod, having a length equal to an inner length between a head of a first plunger of a first standard-size syringe and a seal of said first plunger, and having a width smaller than a gap created between said first plunger and a barrel of said first standard-size syringe;

a second rod, having a length equal to an inner length between a head of a second plunger of a second standard-size syringe and a seal of said second plunger, and having a width smaller than a gap created between said second plunger and a barrel of said second standard-size syringe;

a flexible connector mechanically attached to a distal end of said first rod at a first end and to a distal end of said second rod at a second end;

wherein the housing has syringe mounts for holding said first standard-size syringe and said second standard-size syringe and an anchor for supporting a distally disposed curve portion of said flexible connector and movement of said flexible connector, while said first plunger is pressed to inject fluid from said first standard-size syringe and the second standard-size syringe automatically and simultaneously aspirates fluid, enables single-hand operation.

2. The actuator of claim 1 , wherein:

said first rod includes a first holder at a proximal end, said first holder is detachably mechanically coupled to said first plunger; and

said second rod includes a second holder at a proximal end, said second holder is detachably mechanically coupled to said second plunger.

3. The actuator of claim 1 , wherein said first rod and said second rod are tubes, and said flexible connector is a string inserted into said tubes.

4. The actuator of claim 1 , further comprising:

a one-way mechanism which allows said flexible connector to move only in one direction.

5. The actuator of claim 1 , wherein said first rod and said second rod have a profile with a 90 degree corner to fit within an X-shaped profile of the first and second plungers.

6. A device comprising the actuator of claim 1 , further comprising:

a grip; and

a trigger coupled to a pushing rod which pushes said first plunger.

7. A method for enabling single-hand operation of standard-size syringes for synchronized injection and aspiration, comprising:

placing first and second standard-size syringes in mounts of a housing fitted to hold standard-size syringes, the housing having an anchor for supporting a distally disposed curve portion of a flexible connector and movement of said flexible connector, while a first plunger in the first standard-size syringe is pressed to inject fluid from said first standard-size syringe and the second standard-size syringe automatically and simultaneously aspirates fluid, enables single-hand operation;

distally displacing a first plunger of the first standard-size syringe to inject fluid from said first standard-size syringe;

distally displacing a first rod, said first rod having a length equal to an inner length between a head of said first plunger and a seal of said first plunger, and having a width smaller than a gap created between said first plunger and a barrel of said first standard-size syringe;

distally displacing a first end of the flexible connector which is mechanically attached to a distal end of said first rod;

proximally displacing a second end of said flexible connector which is mechanically attached to a distal end of a second rod;

proximally displacing the second rod, said second rod having a length equal to an inner length between a head of a second plunger of the second standard-size syringe and a seal of said second plunger, and having a width smaller than a gap created between said second plunger and a barrel of said second standard-size syringe; and

proximally displacing said second plunger to aspirate fluid from said second standard-size syringe.

8. A method of using a device for enabling single-hand operation of standard-size syringes for synchronized injection and aspiration, comprising:

inserting a first standard-size syringe and a second standard-size syringe into syringe mounts of a housing of said device, the housing having an anchor for supporting a distally disposed curve portion of a flexible connector and movement of said flexible connector, while a first plunger in the first standard-size syringe is pressed to inject fluid from said first standard-size syringe and the second standard-size syringe automatically and simultaneously aspirates fluid, enables simile-hand operation;

positioning a first rod adjacent to the first plunger of said first standard-size syringe, so said first rod is held by a head of said first plunger at a proximal end and by a seal of said first plunger at a distal end;

positioning a second rod adjacent to a second plunger of said second standard-size syringe, so said second rod is held by a head of said second plunger at a proximal end and by a seal of said second plunger at a distal end; wherein the flexible connector is mechanically attached to a distal end of said first rod at a first end and to a distal end of said second rod at a second end; and

pushing said first plunger to inject fluid from said first standard-size syringe, while aspirating fluid from said second standard-size syringe.