Abstract: An infusion sleeve for use in partially covering a phacoemulsification tip during a surgical operation is disclosed herein. The infusion sleeve includes a flexible elongate portion having a lumen extending therethrough with the phacoemulsification tip running through the lumen. The flexible elongate member further includes a lateral port configured on a side of the flexible elongate member, a straight section, and a tapered section. The tapered section is located at a distal portion of the flexible elongate member and has a first wall subsection having a uniform thickness and a second wall subsection having thickness larger than the uniform thickness. The second wall subsection flexes to maintain circumferential contact with the phacoemulsification tip.

Abstract: A hydraulically-driven Intra-Ocular Lens (IOL) insertion tool includes a body, a chamber within the body, a first fluid port providing fluid communication into the chamber, a piston positioned within the chamber and arranged to move within the chamber in response to the introduction or removal of fluid from the chamber, and an elongated member. The elongated member includes a distal end comprising an intra-ocular lens interface and a proximal end connected to the piston such that movement of the piston within the chamber causes corresponding movement of the elongated member.

Abstract: An ophthalmic surgical system for insertion into an eye of a patient includes a body and a cutting element having a sleeve piece secured to and extending distally from the body, the sleeve piece including a port at an end and an inner piece disposed within the sleeve piece, the inner piece being moveable axially with respect to the sleeve piece. The system further includes a first electromagnetic coil disposed within the body and configured to generate a first magnetic field, a second electromagnetic coil disposed within the body and configured to generate a second magnetic field, a rod piece connected to the inner piece, a first magnetic ring, and a second magnetic ring, the first and second magnetic rings being fixedly secured to the rod piece such that magnetic rings are axially moveable between the first and second electromagnetic coils to open and close the port.

Abstract: An ophthalmic surgical hand piece comprises a driver coupled to a horn, a venturi pump with an inlet aspiration port and an outlet aspiration port, and a hand piece shell at least partially enclosing the driver, the horn, and the venturi pump. A needle is coupled to an end of the horn. A rigid, non-compliant aspiration path extends between the hollow needle and the outlet aspiration port. An aspiration pressure sensor measures a pressure in the aspiration path.

Abstract: A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines an approximate temperature of the eye using an irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power to the tip to compensate for increased loads on the tip.

Abstract: In various embodiments, a phacoemulsification cutting tip with a straight shaft and an angled portion off of the straight shaft may include a hook on the angled portion to move an axis of rotation of the cutting tip closer to alignment with an extended centerline of the shaft. The cutting tip may be configured to torsionally rotate back and forth on an axis perpendicular to a centerline of the shaft (e.g., rotation around a y-axis). In some embodiments, lateral vibrations (e.g., side to side along an x-axis or z-axis perpendicular to the y-axis) that result from torsional rotation around the y-axis in a cutting tip without the hook may be reduced through use of the hook to balance the otherwise eccentrically weighted hook.

Abstract: An infusion sleeve for use in partially covering a phacoemulsification tip during a surgical operation is disclosed herein. The infusion sleeve includes a flexible elongate portion having a lumen extending therethrough with the phacoemulsification tip running through the lumen. The flexible elongate member further includes a lateral port configured on a side of the flexible elongate member, a straight section, and a tapered section. The tapered section is located at a distal portion of the flexible elongate member and has a first wall subsection having a uniform thickness and a second wall subsection having thickness larger than the uniform thickness. The second wall subsection flexes to maintain circumferential contact with the phacoemulsification tip.

Abstract: An ophthalmic surgical system for insertion into an eye of a patient includes a body and a cutting element having a sleeve piece secured to and extending distally from the body, the sleeve piece comprising a port at an end and an inner piece disposed within the sleeve piece, the inner piece being moveable axially with respect to the sleeve piece. The system further includes a first electromagnetic coil disposed within the body and configured to generate a first magnetic field, a second electromagnetic coil disposed within the body and configured to generate a second magnetic field, a rod piece connected to the inner piece, a first magnetic ring, and a second magnetic ring, the first and second magnetic rings being fixedly secured to the rod piece such that magnetic rings are axially moveable between the first and second electromagnetic coils to open and close the port.

Abstract: In various embodiments, a phacoemulsification cutting tip with a straight shaft and an angled portion off of the straight shaft may include a hook on the angled portion to move an axis of rotation of the cutting tip closer to alignment with an extended centerline of the shaft. The cutting tip may be configured to torsionally rotate back and forth on an axis perpendicular to a centerline of the shaft (e.g., rotation around a y-axis). In some embodiments, lateral vibrations (e.g., side to side along an x-axis or z-axis perpendicular to the y-axis) that result from torsional rotation around the y-axis in a cutting tip without the hook may be reduced through use of the hook to balance the otherwise eccentrically weighted hook.

Abstract: In various embodiments, a phacoemulsification cutting tip with a straight shaft and an angled portion off of the straight shaft may include a hook on the angled portion to move an axis of rotation of the cutting tip closer to alignment with an extended centerline of the shaft. The cutting tip may be configured to torsionally rotate back and forth on an axis perpendicular to a centerline of the shaft (e.g., rotation around a y-axis). In some embodiments, lateral vibrations (e.g., side to side along an x-axis or z-axis perpendicular to the y-axis) that result from torsional rotation around the y-axis in a cutting tip without the hook may be reduced through use of the hook to balance the otherwise eccentrically weighted hook.

Abstract: A torsional ultrasound surgical hand piece lessens or eliminates chatter from lens material by imparting a twisting, rotary motion to a tip of a phacoemulsification needle at a resonant frequency in excess of 32 kHz. The hand piece has a horn that is designed to operate at an elevated frequency while maintaining size constraints for hand-held ophthalmic instruments. Optionally, heat generation is reduced either through the use of a polyimide tubing situated between the needle and the infusion sleeve, through the use of thermal watch to prevent overheating at the incision, and/or through the use of a bypass hole in the needle that diverts flow under suction into the needle via the bypass hole instead of exiting through an irrigation opening in the infusion sleeve when a tip port is occluded by lens material.

Abstract: A phacoemulsification tip having a crimped or swaged distal tip. Swaging of the distal end of a phacoemulsification tip produces more efficient cutting during torsional vibration of the tip by increasing the cutting surface area.

Abstract: A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines an approximate temperature of the eye using an irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power to the tip to compensate for increased loads on the tip.

Abstract: An intraocular lens (IOL) injection device is modularized to enable cleaning of internal components after surgery. The device includes first and second housing modules. These modules collectively define a passageway along which an injector rod moves between a retracted position and an extended position. The first module is further configured to accommodate a lens cartridge module. The cartridge module has disposed therein an IOL, in alignment with the passageway. Thus as the rod moves from the retracted position to the extended position, a front portion of the rod that is substantially surrounded by the first module in the retracted position moves into the cartridge module and displaces the IOL. This causes the front portion of the rod to accumulate on it viscoelastic substances. The first module, though, is configured to detach from the second module, to thereby expose the front portion of the rod in the retracted position for cleaning.

Abstract: An irrigation mounting arrangement for an irrigation container that is defined by a body portion, a neck member, and a stopper, is disclosed. The irrigation mounting arrangement comprises an upwardly extending base member and a mounting arm mechanism that extends away from the base member. The mounting arm mechanism includes at least one mounting aperture configured to selectively receive a portion of the irrigation container such that the neck member of the irrigation container is oriented above the body portion.

Abstract: An irrigation mounting arrangement for an irrigation container that is defined by a body portion, a neck member, and a stopper, is disclosed. The irrigation mounting arrangement comprises an upwardly extending base member and a mounting arm mechanism that extends away from the base member. The mounting arm mechanism includes at least one mounting aperture configured to selectively receive a portion of the irrigation container such that the neck member of the irrigation container is oriented above the body portion.

Abstract: A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines a temperature of an eye using irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power or stroke of the tip to compensate for increased loads on the tip.