IOL injector with automatic driver or assisted manual drive force

An intraocular lens (IOL) injector, comprising:

• an injector body having a proximal end and a distal end including:
• a main injector body having a distal end and a proximal end;
• a nozzle coupled to the distal end of the main injector body;
• and
• a bore extending from the proximal end of the injector body to the distal end of the injector body;
• and
• a plunger having a proximal portion and a distal portion, the plunger slideably disposed and rotationally fixed within the bore, the plunger adapted to advance an IOL along a longitudinal axis of the IOL injector;
• and
• an automatic plunger advancement driver having:
• a cylinder concentrically disposed around the proximal portion of the plunger, the cylinder having a thread adapted to rotatably engage with a plunger thread in the proximal portion of the plunger;
• and
• a torsion spring having stored rotational energy, the torsion spring concentrically disposed around the cylinder,
• wherein at least one end of the torsion spring is coupled to the cylinder such that in response to a release of the stored rotational energy, the cylinder is configured to rotate around the longitudinal axis and the plunger moves axially toward the distal end of the injector body.