Abstract: In certain embodiments, a method includes forming a ferrule from a portion of a tube. The tube is cut to yield the ferrule and a short cannula. A multi-spot generator with a faceted optical element is added to the short cannula. An optical fiber is placed into the ferrule, and the ferrule and the short cannula are assembled. In certain embodiments, a system includes a long cannula, an optical fiber, and a multi-spot generator. The optical fiber can carry a laser beam to a distal end of the long cannula. The multi-spot generator is located at the distal end and comprises a faceted optical element and a ball lens. The faceted optical element can be formed directly onto or separately from the ball lens. The ball lens can be spherical or hemispherical.

Abstract: In certain embodiments, a method includes forming a ferrule from a portion of a tube. The tube is cut to yield the ferrule and a short cannula. A multi-spot generator with a faceted optical element is added to the short cannula. An optical fiber is placed into the ferrule, and the ferrule and the short cannula are assembled. In certain embodiments, a system includes a long cannula, an optical fiber, and a multi-spot generator. The optical fiber can carry a laser beam to a distal end of the long cannula. The multi-spot generator is located at the distal end and comprises a faceted optical element and a ball lens. The faceted optical element can be formed directly onto or separately from the ball lens. The ball lens can be spherical or hemispherical.

Abstract: An extraction sleeve assembly for use in extracting a viscous fluid from the posterior segment of an eye during vitreoretinal surgery is disclosed. The extraction sleeve assembly includes a luer lock fitting and a flexible, tubular extraction sleeve. The extraction sleeve assembly facilitates a shorter extraction time for the viscous fluid.

Abstract: An extraction sleeve assembly for use in extracting a viscous fluid from the posterior segment of an eye during vitreoretinal surgery is disclosed. The extraction sleeve assembly includes a luer lock fitting and a flexible, tubular extraction sleeve. The extraction sleeve assembly facilitates a shorter extraction time for the viscous fluid.

Abstract: A probe having a flexible, small diameter fiber sheathed in a small diameter flexible tube comprising the distal tip of the probe. The small diameters of the fiber and tube allow the fiber to be bent in a tighter radius along essentially the entire length of the exposed portion of the fiber, with low tube bending forces during insertion, providing a compact design which eliminates the need for a straight distal portion. The small diameter tube also allows a greater wall thickness outer cannula to be used, thereby increasing instrument rigidity. This compact, rigid design with low insertion forces allows the fiber greater access to the internal posterior structures of the eye, while providing increased instrument rigidity for manipulation of the eye, as well as low insertion forces.

Abstract: A syringe-like device having a drug dispensing tip connected to a motorized handpiece. The tip may be packaged pre-loaded with an amount of a liquid or phase transition drug or may be shipped empty and loaded with a liquid or phase transition drug by the user. The motorized handpiece contains suitable sensors and controllers for precisely actuating the tip for the controlled delivery of the liquid or phase transition drug in the tip. The handpiece by contain an internal power source, such as a battery, or may be connected to an external power source and/or control unit.

Abstract: A thin gauge surgical probe having a retractable reinforcing sleeve. The retractable sleeve helps to Protect the thin probe from bending during shipment and use.

Abstract: A microsurgical probe tip and method of using same are disclosed.

Abstract: A syringe-like device having a chamber in which a pressurizing piston reciprocates. The chamber is connected on one end to a vial containing a drug to be delivered to an eye and on the other end to a needle or cannula for administering the drug to an eye. Pulling proximally backwards on the piston creates a vacuum in the chamber and draws the drug out of the vial. Upon release of the piston, a spring pushes the piston forward, pressurizing the chamber and forcing the drug out of the cannula. A one-way valve prevents the drug from being expelled back into the vial. A pinch valve between the chamber and the cannula allows the flow of the drug out of the cannula to be stopped. The flow rate of the drug out of the cannula can be controlled by varying the size of the chamber, piston and spring.