Abstract: A control system for an ultrasonic hand piece is provided. The control system includes an irrigation pressure sensor configured to measure a pressure of an irrigation fluid, an ultrasonic power source configured to provide power to an ultrasonic transducer, and a controller. The controller is configured to receive a selection of an ultrasonic power modality, generate a control signal based on the selected ultrasonic power modality, provide the control signal to the ultrasonic power source, determine an irrigation flow rate from a measured irrigation pressure provided by the irrigation pressure sensor, calculate a thermal index value based on the irrigation flow rate and the selected ultrasonic power modality, and, in response to the thermal index value reaching a threshold value, adjust the control signal based on the thermal index value. The ultrasonic power modality is one of a two dimensional power modality and a three dimensional power modality.

Abstract: Systems and methods are disclosed for a surgical laser system with illumination. In some embodiments, a laser system comprises a surgical laser and an illumination source having their outputs combined into a fiber-optic cable and directed by the fiber-optic cable to a target surface. The illuminating visible light may be continuous and/or in pulses. Surgical laser pulses and illumination pulses may be synchronized for a stroboscopic effect. The laser system may also monitor laser electromagnetic radiation that is returned back through the fiber-optic cable.

Abstract: Embodiments disclosed herein provide an optical fiber system. The optical fiber system includes an aspiration tube, an optical fiber external to the aspiration tube, and a sleeve surrounding the optical fiber and the aspiration tube. The sleeve includes a distal portion that defines a channel. The channel extends between the aspiration tube and a distal opening of the sleeve. The channel and the aspiration tube define an aspiration pathway. The optical fiber is partially disposed within the channel.

Abstract: Embodiments disclosed herein relate to devices and systems for use in ophthalmic procedures. In some embodiments, a handpiece device for use with a surgical system is provided. The handpiece device includes a housing, a cable assembly, and a tapered optical fiber. The cable assembly is disposed through a distal end of the housing and optically coupled to the tapered optical fiber. The tapered optical fiber has a diameter that decreases between a proximal end of the tapered optical fiber and a distal end thereof. In some embodiments, the tapered optical fiber comprises a single-crystal fiber. In further embodiments, the tapered optical fiber comprises a tapered sapphire core fiber.

Abstract: In certain embodiments, a surgical handpiece system includes a phacoemulsification tip, a fluid management system, an ultrasonic drive system, and a controller. The phacoemulsification tip is attached to a shaft. The fluid management system is configured to manage inflow and outflow of fluid from an ocular surgical site. The ultrasonic drive system is configured to generate torsional and longitudinal vibrations in the phacoemulsification tip. The controller is configured to analyze applied voltage and current to the ultrasonic drive system using Fast Fourier Transforms (FFTs), and tune applied frequencies of the torsional and longitudinal vibrations according to at least one resonant frequency.

Abstract: Systems and methods are disclosed for a surgical laser system with illumination. In some embodiments, a laser system comprises a surgical laser and an illumination source having their outputs combined into a fiber-optic cable and directed by the fiber-optic cable to a target surface. The illuminating visible light may be continuous and/or in pulses. Surgical laser pulses and illumination pulses may be synchronized for a stroboscopic effect. The laser system may also monitor laser electromagnetic radiation that is returned back through the fiber-optic cable.

Abstract: The present disclosure relates generally to surgical instruments, and more specifically, to ophthalmic surgical instruments and methods of making the same. In particular, a surgical instrument is provided. The surgical instrument includes a cannula. A spatula is formed at an end of the cannula. The spatula extends from the cannula at a non-zero angle relative to an exterior surface of the cannula. The spatula at least partially defines an aperture at the end of the cannula. An optical fiber extends along an interior of the cannula. The optical fiber is configured to direct laser light toward the spatula.

Abstract: The present disclosure generally relates to systems and methods for laser power measurement, and more particularly, systems and methods for laser power measurement in a sterile operating environment. In certain embodiments described herein, power measurement is performed utilizing two laser sources: 1) a first laser source configured to generate a first laser beam (treatment laser); and 2) a second laser source configured to generate a second laser beam (test laser). The first laser beam generates a bubble in a test material (e.g., water, saline, balanced salt solution, gel, etc.) and the second laser beam is reflected back with the reflected portion of the second laser beam being measured to determine a lifetime of the bubble and correlate the lifetime measurement with a power measurement based on a correlation curve.

Abstract: Systems and methods are provided for in vivo pre-surgical characterization of lenses, such as cataractous lenses. A method comprises obtaining an electromagnetically-measured value related to the axial thickness of the lens, obtaining an ultrasound-measured value related to the axial thickness of the lens, calculating a relationship value based upon the electromagnetically-measured value and the ultrasound-measured value, and determining a mechanical property value based upon the calculated relationship value. The mechanical property may relate to lens hardness, rigidity, or density, or the amount of energy for a phacoemulsification procedure. A system may comprise an optical interferometer for measuring data to obtain the electromagnetically-measured value and an ultrasound biometer for measuring data to obtain the ultrasound-measured value.

Abstract: Systems and methods are provided for in vivo pre-surgical characterization of lenses, such as cataractous lenses. A method comprises obtaining an electromagnetically-measured value related to the axial thickness of the lens, obtaining an ultrasound-measured value related to the axial thickness of the lens, calculating a relationship value based upon the electromagnetically-measured value and the ultrasound-measured value, and determining a mechanical property value based upon the calculated relationship value. The mechanical property may relate to lens hardness, rigidity, or density, or the amount of energy for a phacoemulsification procedure. A system may comprise an optical interferometer for measuring data to obtain the electromagnetically-measured value and an ultrasound biometer for measuring data to obtain the ultrasound-measured value.

Abstract: The present disclosure relates generally to illumination devices, systems, and methods for ophthalmic surgical procedures. Certain aspects of the present disclosure provide an illumination system which monitors and determines the amount of light delivered to a tissue within the ocular space, based upon data received from an imaging system. In certain aspects, if the amount of light delivered to the tissue is determined to be excessive, the illumination system may modify at least one parameter associated with the delivered light to reduce and/or eliminate phototoxic effects thereof. In certain aspects, if the amount of light delivered to the tissue is determined to be excessive, the illumination system may alert a surgeon, who may then trigger modification of the at least one parameter associated with the delivered light to reduce and/or eliminate phototoxic effects thereof.

Abstract: Methods are disclosed for operating a laser. Such methods may comprise operating the laser to emit electromagnetic energy in an infrared range in pulses with a pulse duration of greater than 1 ns. The wavelength of infrared electromagnetic energy may be in a range of about 2.6? to about 3.3? or about 1.8? to about 2.1?. The pulses may have a pulse energy selected to deliver an energy density of 2,500 J/cm3 or greater. The laser electromagnetic energy may be delivered for a medical application, such as cataract surgery to break apart a cataractous lens by photodisruption.

Abstract: Systems and methods are provided for in vivo pre-surgical characterization of lenses, such as cataractous lenses. A method comprises obtaining an electromagnetically-measured value related to the axial thickness of the lens, obtaining an ultrasound-measured value related to the axial thickness of the lens, calculating a relationship value based upon the electromagnetically-measured value and the ultrasound-measured value, and determining a mechanical property value based upon the calculated relationship value. The mechanical property may relate to lens hardness, rigidity, or density, or the amount of energy for a phacoemulsification procedure. A system may comprise an optical interferometer for measuring data to obtain the electromagnetically-measured value and an ultrasound biometer for measuring data to obtain the ultrasound-measured value.

Abstract: A surgical simulation network system is provided that facilitates user training in various surgical procedures and subsequent assessments of the user by allowing the users and assessors to be at different physical locations. The surgical simulation network system is part of a network having various surgical trainers that capture user performance data related to various surgical simulations. The user performance data is subsequently accessible by one or more assessors via the surgical simulation network system that allows the assessors to assess the user's competency. Thus, the users and the assessors can be located at different locations. Furthermore, the performance of the simulation and the assessments can be performed at different times.

Abstract: Systems and methods are disclosed for a surgical laser system with illumination. In some embodiments, a laser system comprises a surgical laser and an illumination source having their outputs combined into a fiber-optic cable and directed by the fiber-optic cable to a target surface. The illuminating visible light may be continuous and/or in pulses. Surgical laser pulses and illumination pulses may be synchronized for a stroboscopic effect. The laser system may also monitor laser electromagnetic radiation that is returned back through the fiber-optic cable.

Abstract: An ophthalmic system for visualization of interactions between ocular matter and a probe tip of a probe within or in contact with an ocular space of an eye includes: a visualization tool having a field of view that includes at least a portion of the ocular space of the eye where the probe tip interfaces with the ocular matter; and a stroboscopic illumination source configured to stroboscopically illuminate at least the portion of the field of view at an illumination frequency. A method of operating a stroboscopic illumination source during an ophthalmic surgical procedure includes: identifying an illumination source type of the stroboscopic illumination source; identifying a probe type; identifying a first procedure trigger; and operating the stroboscopic illumination source based on the probe type, the illumination source type, and the first procedure trigger.

Abstract: Frequency-domain signal processing of pressure sensor signals and/or flow signals is used to provide on-demand control of a multi-component fluidic system. An example method, implemented in a phacoemulsification system comprises receiving a signal from each of one or more sensors, the one or more sensors comprising at least one pressure sensor, and converting each of one or more of the received signals, including at least one signal from a pressure sensor, to a frequency-domain representation of the received signal. The method further comprises identifying, based on the frequency-domain representations of received signals, at least one event from a set of predetermined events, and controlling one or more fluid control devices, responsive to the identifying.

Abstract: An ultrasonic cutting tip has a hollow shaft with a proximal and distal end. The proximal end is configured to be attached to an ultrasonic hand piece, and the distal end has a smooth continuous surface. An opening is located near the distal end of the hollow shaft. The opening is configured to cut vitreous when the cutting tip is vibrated ultrasonically in a torsional manner.

Abstract: Systems and methods are provided for in vivo pre-surgical characterization of lenses, such as cataractous lenses. A method comprises obtaining an electromagnetically-measured value related to the axial thickness of the lens, obtaining an ultrasound-measured value related to the axial thickness of the lens, calculating a relationship value based upon the electromagnetically-measured value and the ultrasound-measured value, and determining a mechanical property value based upon the calculated relationship value. The mechanical property may relate to lens hardness, rigidity, or density, or the amount of energy for a phacoemulsification procedure. A system may comprise an optical interferometer for measuring data to obtain the electromagnetically-measured value and an ultrasound biometer for measuring data to obtain the ultrasound-measured value.

Abstract: Systems and methods are provided for in vivo pre-surgical characterization of lenses, such as cataractous lenses. A method comprises obtaining an electromagnetically-measured value related to the axial thickness of the lens, obtaining an ultrasound-measured value related to the axial thickness of the lens, calculating a relationship value based upon the electromagnetically-measured value and the ultrasound-measured value, and determining a mechanical property value based upon the calculated relationship value. The mechanical property may relate to lens hardness, rigidity, or density, or the amount of energy for a phacoemulsification procedure. A system may comprise an optical interferometer for measuring data to obtain the electromagnetically-measured value and an ultrasound biometer for measuring data to obtain the ultrasound-measured value.