Apparatus for delivering a viscous liquid to a surgical site

A device for actuating a syringe, wherein the syringe includes a barrel and a plunger movable axially within the barrel from a withdrawn (proximal) position to an inserted (distal) position, the device comprising:

• a hollow, internally-threaded sleeve configured to receive the plunger in its withdrawn position, the sleeve having an open proximal end and a distal end opening configured for securing the syringe barrel;
• and
• a substantially cylindrical actuation element having an externally-threaded distal portion dimensioned to screw into the proximal end of the sleeve, and a plunger seat positioned in the distal portion of the actuation element to bear against the plunger so as to push the plunger axially toward its inserted position in the barrel as the actuation element is threaded into the sleeve.

A device for actuating a syringe, wherein the syringe includes a barrel and a plunger movable axially within the barrel from a withdrawn (proximal) position to an inserted (distal) position, the device comprising:

• a hollow, internally-threaded sleeve having an open proximal end, a distal end slot configured to receive the syringe barrel therethrough, and a longitudinal opening extending from the distal end slot toward the proximal end and dimensioned to receive the plunger in its withdrawn position;
• and
• a substantially cylindrical actuation element having a longitudinal axis, an externally-threaded distal portion dimensioned to screw into the proximal end of the sleeve, and a plunger seat positioned in the distal portion of the actuation element and comprising a surface transverse to the longitudinal access and configured to bear against the plunger so as to push the plunger axially toward its inserted position in the barrel as the actuation element is threaded into the sleeve.