Intraocular lens inserter
An intraocular lens inserter can include an energy storage portion, an actuator portion, and a lens support portion. The energy storage portion can include a compressible energy storage device, such as a compressible fluid, springs, and other devices. The inserter can include an actuator portion operating with a substantially incompressible fluid, such as liquids or other noncompressible fluids. The actuator can be configured to provide an operator with control over the release of energy from the energy storage portion so as to move a plunger for the discharge of a lens from an intraocular lens cartridge.
1. An intraocular lens inserter comprising:
an intraocular lens support portion configured to support an intraocular lens for insertion into an eye of an animal;
an energy storage portion having a cartridge of compressed gas;
an actuator portion having an actuator member movable by a hand of a human between an unactuated position and an actuated position by movement in a direction generally transverse to a longitudinal axis of the intraocular lens inserter and including a fluid circuit filled with a substantially incompressible fluid and a plunger device, wherein the fluid circuit transfers energy from the energy storage portion to the plunger device so as to move the plunger device so as to eject the intraocular lens supported by the intraocular lens support portion;
a first piston having a first end forming a seal for containing compressed gas from the cartridge of compressed gas and a second end forming a seal for containing the substantially incompressible fluid disposed in the actuator portion;
a second piston having a first end forming a second seal for containing the substantially incompressible fluid and a second end acting against the plunger for discharging an intraocular lens.
2. The intraocular lens inserter according to claim 1 , wherein the intraocular lens support portion is configured to receive an intraocular lens cartridge having an outer housing and an intraocular lens disposed therein, and to retain the intraocular lens cartridge in a predetermined position.
3. The intraocular lens inserter according to claim 1 , wherein the cartridge of compressed gas is contained completely within the intraocular lens inserter, wherein the intraocular lens inserter is configured to be handheld.
4. The intraocular lens inserter according to claim 1 , wherein the cartridge of compressed gas is received in a recessed chamber of the energy storage portion.
5. The intraocular lens inserter according to claim 4 , additionally comprising a piercing needle disposed within the energy storage portion and configured to pierce a seal of the cartridge of compressed gas.
6. The intraocular lens inserter according to claim 1 , wherein the intraocular lens support portion includes a first distal end configured to engage a distal portion of an intraocular lens cartridge and a second proximal end configured to engage a proximal portion of the intraocular lens cartridge, to thereby resist rotational movements of the intraocular cartridge engaged with the intraocular lens support portion.
7. The intraocular lens Inserter according to claim 1 , wherein the intraocular lens support portion is slidably movable relative to the energy storage portion and the actuator portion.
8. The intraocular lens inserter according to claim 7 additionally comprising a plunger configured to extend into an intraocular lens cartridge supported by the intraocular lens support portion, wherein the intraocular lens support portion is slidably movable relative to the plunger.
9. The intraocular lens inserter according to claim 1 , wherein the actuator portion comprises a flow control valve.
10. The intraocular lens inserter according to claim 1 , wherein the actuator portion comprises at least one flow control valve configured to control a flow of the substantially incompressible fluid.