Abstract: A surgical device includes a plurality of cameras integrated therein. The view of each of the plurality of cameras can be integrated together to provide a composite image. A surgical tool that includes an integrated camera may be used in conjunction with the surgical device. The image produced by the camera integrated with the surgical tool may be associated with the composite image generated by the plurality of cameras integrated in the surgical device. The position and orientation of the cameras and/or the surgical tool can be tracked, and the surgical tool can be rendered as transparent on the composite image. A surgical device may be powered by a hydraulic system, thereby reducing electromagnetic interference with tracking devices.

Abstract: A surgical device includes a plurality of cameras integrated therein. The view of each of the plurality of cameras can be integrated together to provide a composite image. A surgical tool that includes an integrated camera may be used in conjunction with the surgical device. The image produced by the camera integrated with the surgical tool may be associated with the composite image generated by the plurality of cameras integrated in the surgical device. The position and orientation of the cameras and/or the surgical tool can be tracked, and the surgical tool can be rendered as transparent on the composite image. A surgical device may be powered by a hydraulic system, thereby reducing electromagnetic interference with tracking devices.

Abstract: A surgical device includes a plurality of cameras integrated therein. The view of each of the plurality of cameras can be integrated together to provide a composite image. A surgical tool that includes an integrated camera may be used in conjunction with the surgical device. The image produced by the camera integrated with the surgical tool may be associated with the composite image generated by the plurality of cameras integrated in the surgical device. The position and orientation of the cameras and/or the surgical tool can be tracked, and the surgical tool can be rendered as transparent on the composite image. A surgical device may be powered by a hydraulic system, thereby reducing electromagnetic interference with tracking devices.

Abstract: A surgical device includes a plurality of cameras integrated therein. The view of each of the plurality of cameras can be integrated together to provide a composite image. A surgical tool that includes an integrated camera may be used in conjunction with the surgical device. The image produced by the camera integrated with the surgical tool may be associated with the composite image generated by the plurality of cameras integrated in the surgical device. The position and orientation of the cameras and/or the surgical tool can be tracked, and the surgical tool can be rendered as transparent on the composite image. A surgical device may be powered by a hydraulic system, thereby reducing electromagnetic interference with tracking devices.

Abstract: A surgical device includes a plurality of cameras integrated therein. The view of each of the plurality of cameras can be integrated together to provide a composite image. A surgical tool that includes an integrated camera may be used in conjunction with the surgical device. The image produced by the camera integrated with the surgical tool may be associated with the composite image generated by the plurality of cameras integrated in the surgical device. The position and orientation of the cameras and/or the surgical tool can be tracked, and the surgical tool can be rendered as transparent on the composite image. A surgical device may be powered by a hydraulic system, thereby reducing electromagnetic interference with tracking devices.

Abstract: A pupil expander is disclosed. The pupil expander comprises a support member sized to expand a pupil and a plurality of engaging portions. The plurality of engaging portions are coupled to and spaced about the support member. The engaging portions have a recess and are shaped and sized to receive an inner margin of an iris.

Abstract: A vitrectomy probe having a variable duty cycle cutting mechanism is disclosed. The probe includes a motor and a cam driver rotationally driven by the motor. The cam driver has a non-planar driver surface having surface features that vary at different radii. A follower mechanism is arranged to selectively interface with the driver surface at different radii on the driver surface in a manner to selectively interface with the varied surface features at the different radii. The follower is arranged to transfer rotational movement of the cam driver into linear movement of the follower mechanism.

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: Embodiments of systems and methods disclosed herein regard simplifying and improving the performance and reliability of pneumatic actuators operable to actuate surgical cutters or shears. Various embodiments include systems and methods for vitreous cutting apparatuses utilizing self-valving vitreous cutters that actuate at a frequency based on the properties of the vitreous cutter.

Abstract: A vitrectomy probe having a variable duty cycle cutting mechanism is disclosed. The probe includes a motor and a cam driver rotationally driven by the motor. The cam driver has a non-planar driver surface having surface features that vary at different radii. A follower mechanism is arranged to selectively interface with the driver surface at different radii on the driver surface in a manner to selectively interface with the varied surface features at the different radii. The follower is arranged to transfer rotational movement of the cam driver into linear movement of the follower mechanism.

Abstract: Methods, systems, and software for controlling infusion pressure, such as during a medical procedure, using systemic blood pressure are described. Systemic blood pressure, such as brachial arm blood pressure or radial artery blood pressure, may be used to estimate central retinal artery blood pressure to estimate critical closing pressure. Further, the disclosure relates to controlling infusion pressure to prevent an increase in intraocular pressure above the estimated critical closing pressure when such is not desired, and, when such is desired, using systemic blood pressure and infusion pressure to control an intentional increase in intraocular pressure above the estimated critical closing pressure to stop intraocular bleeding.

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: Disclosed is an exemplary surgical system employing a temperature controlled docking station. The surgical system may include an articulating arm that is selectively moveable within a range of positions. A tray for receiving items used in performing a procedure may be attached to the articulating arm. The docking station may be attached to the tray. The docking station may include a heating element for selectively heating the docking station, a temperature sensor for monitoring a temperature of the docking station, and a reader configured for collecting information associated with an article placed in the docking station. The surgical system may also include a controller operably connected to the heating element, the temperature sensor, and the reader. The controller may be configured to adjust a heat output of the heating element in response to a signal received from the temperature sensor and/or the reader.

Abstract: A system and method for identifying a component for use with a surgical device are disclosed. A component of a surgical device includes an identifier, such as a RFID tag. Data from the RFID tag is transmitted to a RFID reader operably coupled to the device. A controller identifies the component based on the received data and determines whether the component can be used with the surgical device based on criteria, such as whether the received data is an authorized code that matches data stored in memory or whether the received data solves or satisfies an algorithm. The authorized codes are selected from a larger set of available codes. The controller can enable or disable the operation of the device with the component based on whether the criteria is satisfied and can cause the surgical device to be configured for use with the component.

Abstract: A gradient index wide-angle illuminator is disclosed, one embodiment comprising: a light source for providing a light beam; an optical cable, optically coupled to the light source for receiving and transmitting the light beam; a handpiece, operably coupled to the optical cable to receive the light beam; an optical fiber, operably coupled to the handpiece, wherein the optical fiber is optically coupled to the optical cable to receive and transmit the light beam; an optical element, optically coupled to a distal end of the optical fiber, for receiving the light beam and transmitting the light beam to illuminate a surgical field, wherein the optical element comprises a gradient index lens; and a cannula, operably coupled to the handpiece, for housing and directing the optical fiber and the optical element. The optical element can be a small-gauge, divergent gradient index lens having a distal surface co-incident with the distal end of the cannula.

Abstract: A trocar cannula having a tube and a hub. The hub is attached to the proximal end of the tube so that the tube may be inserted into an incision. The proximal side of the hub is rounded, curved or slanted so as to minimize contact with the tissue surrounding the incision.

Abstract: Embodiments of systems and methods disclosed herein regard simplifying and improving the performance and reliability of pneumatic actuators operable to actuate surgical cutters or shears. Various embodiments include systems and methods for vitreous cutting apparatuses utilizing self-valving vitreous cutters that actuate at a frequency based on the properties of the vitreous cutter.

Abstract: A microsurgical system capable of hydraulic actuation of microsurgical instruments. Such a system will provide greater force/mass and force/volume ratios, allow for better open loop control, and provide force to overcome tissue resistance.

Abstract: An ophthalmic injection device has a dispensing chamber housing, a plunger, a shaft connected to the plunger, and a pneumatic cylinder. The dispensing chamber housing has an inner surface partially defining a dispensing chamber for holding a quantity of a substance. The plunger is engaged with the inner surface of the dispensing chamber housing, is capable of sliding in the dispensing chamber housing, and is fluidly sealed to the inner surface of the dispensing chamber housing. The pneumatic cylinder has a piston movable in a chamber. The piston is connected to a shaft. The shaft is connected to the plunger. The shaft has teeth located on its surface. A pawl is engageable with the teeth and limits movement of the shaft to a dispensing direction. Pneumatic pressure introduced into the chamber moves the piston, shaft, and plunger in a dispensing direction.