Abstract:
PROBLEM TO BE SOLVED: To provide a system and method for identifying a component, such as an optical probe or pneumatic scissors, of an ophthalmic surgical device.SOLUTION: The component of the surgical device includes an identifier, such as an RFID tag 102. Data 104 from the RFID tag is transmitted to a RFID reader 112 of the device. A controller 115 determines whether the component corresponding to the received data 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 114 or whether the received data solves or satisfies an algorithm. The authorized codes are selected from a larger set of available codes. The controller enables or disables the operation of the device with the component based on whether the criteria is satisfied, the number of uses of the component, an amount of time that has passed since the component has been used, or a geographic location.
Abstract:
PROBLEM TO BE SOLVED: To provide an improved method for controlling intraocular pressure during ophthalmic surgery.SOLUTION: This method for controlling intraocular pressure with a microsurgical system includes steps of: providing an infusion chamber containing an irrigating fluid; selecting an intraocular pressure; pressurizing the infusion chamber with a pressurized gas to provide irrigating fluid to a surgical device; measuring a flow rate of the fluid within a fluid line fluidly coupled to the surgical device; providing a signal corresponding to the measured flow rate to a computer; calculating a predicted value of the intraocular pressure with the computer in response to the signal; and adjusting a level of the pressurized gas in response to a signal from the computer to maintain the predicted value proximate the selected intraocular pressure.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for improving the intraocular pressure control in a system for microscopic surgical operation using a flow measured value and two injection chambers.SOLUTION: An injection chamber 16 where a drench fluid enters is provided, and desired intraocular pressure is selected. The injection chamber 16 is pressurized by pressure gas to supply the drench fluid to a surgical operation device 29. The flow quantity of the fluid flowing in a passage fluidly connected to the surgical operation device is measured. A signal corresponding to the measured flow quantity is supplied to a computer 28. According to the signal, an estimated value of the intraocular pressure is calculated by the computer. According to a second signal from the computer, the level of the pressure gas is adjusted to keep the estimated value of the intraocular pressure to the neighborhood of a desired intraocular pressure.
Abstract:
A surgical cassette (27), comprising: an infusion chamber (16) having an upper surface (16d) and a lower surface (16e); and a fluid line (72,74) fluidly coupled to said infusion chamber (16) for providing an irrigating fluid to said infusion chamber (16), said infusion chamber (16) having an opening (226,228) disposed near said lower surface (16e) for said fluid line (72,74).
Abstract:
System and method for identifying a component, such as an optical probe or pneumatic scissors, of an ophthalmic surgical device. A component of a surgical device includes an identifier (102), such as a RFID tag. Data from the RFID tag is transmitted to a RFID reader in the device. A controller (115) determines whether the component corresponding to the received data is operable 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 enables or disables the operation of the device with the component based on whether the criteria is satisfied, the number of uses of the component, an amount of time that has passed since the component has been used, or a geographic location. The RFID data can also be used to calibrate the surgical device for use with the particular component and for inventory and monitoring purposes.