SECTION TWO DESCRIPTION INTRODUCTION This section contains descriptions of the front panel, rear panel, and screens that are displayed on the PurePoint Laser. WARNINGS! Use of controls, making adjustments, or performance of procedures other than specified in this manual may result in hazardous laser radiation exposure. Possible explosion hazard if used in the presence of flammable anesthetics or other gas mixtures.
LCD Screen The LCD screen is the communication interface between the surgeon and the system. It provides the surgeon with system status and parameters by displaying text and icons relevant to the current operating state. The background color of this screen is gray when the system is in the Standby state and green when is in the Ready state. When the laser is fired, "Laser On" is display in a red box at the bottom of the screen. Figure 2-2 shows a typical screen that may be displayed on the LCD.
A message is displayed as shown in Figure 2-3 prompting the user to identify the probe as one of three instruments displayed in the menu options. After the user has identified the probe: • The Port Illumination Ring is illuminated in the color green if the port is the only port with an identified probe. • The Port Illumination Ring is not lighted if the other port already contains an identified probe. The port with the newly-identified probe is not the selected port.
LIO Illumination Power Knob The LIO Illumination Power knob adjusts the brightness of the LIO illumination beam (if an LIO power cable is plugged into the LIO Power Port port, a LIO fiber is connected to a laser port, and the port is selected). Turning the knob right makes the LIO illumination beam brighter and turning the knob left makes the beam dimmer. When the LIO illumination beam reaches its maximum brightness, continuing to turn the knob to the right has no effect.
Standby/Ready Button The Standby/Ready button switches the system between Standby and Ready modes. The screen background changes color for each mode (gray for Standby, green for Ready mode). In addition, each mode has an associated LED that illuminates when that mode is active. WARNING! In Ready mode, pressing the footswitch will fire the laser. To transition the system from Standby to Ready mode, press the Standby/Ready button once.
The Pulse Duration Knob The Pulse Duration Knob sets the duration (exposure time) of the laser emission and it functions as described below: • • • • • Turning the knob clockwise increases the exposure time up to 2000 ms. Turning the knob past the 2000 ms setting or pushing the knob places the system in Continuous Wave (CW) mode. In CW mode, the Interval Time knob is disabled. Turning the Pulse Duration knob counter-clockwise from CW mode returns the system to the previous mode: Single Shot or Repeat.
REAR PANEL DESCRIPTION Dr. Filter Ports Footswitch Connector Remote Interlock Connector Tether Port Laser Status Connector Main Power Switch Power Cord Connector Figure 2-4 The PurePoint™ Laser Rear Panel Doctor Protection Filter Ports Two ports are provided to connect Doctor's filters. If more than one filter is needed, both ports can be used at the same time. There is no direct correspondence between the laser ports and Dr. Filter ports.
Tether Port This port is used by authorized service personnel to connect a service computer to the system. A password is required to gain access to the system and this procedure can only be performed by authorized service personnel. Remote Interlock Port The Remote Interlock Connection permits the facility to connect a door activated switch and/or door warning lamp to the PurePoint™ system (see Section One for details).
SYSTEM MODES The PurePoint™ system has three modes describe the different operational states of the system. Standby Mode The system starts in this mode after initialization. It also falls back to this mode in response to various events. Settings can be adjusted in this mode, but the system cannot deliver treatment laser energy. Ready Mode This mode is initiated when the Standby/Ready button is pushed while the system is in Standby mode.
SCREEN DESCRIPTIONS Figure 2-6 shows the hierarchy of screens displayed as you operate the system. Navigation through the screens is accomplished by turning the Menu Knob to highlight the desired selection, then pushing the knob in to activate the selection. When available, pressing "Done" returns the system to the Standby screen, while pressing "Back" takes the system back to the previous screen. Initialization Screen Standby Screen Figure 2-6 2.
INITIALIZATION SCREEN The Initialization screen is displayed when the system is powered on. The delta between the set point and actual temperature of the laser engine is shown as it approaches nominal operating temperature. The user can perform the following setup operations during initialization: connect probes, connect LIO illumination power, set laser parameters if an identified probe is connected, and view or change system settings.
Shots/Energy This field displays the number of shots fired since the unit was powered up or since the user re-set the shot count. Through the Treatment Totals Options menu, the user can set the system to display the energy (in Joules (J)) since the unit was powered up or since the user re-set the value. READY SCREEN The Ready screen shown in Figure 2-9 indicates that the system is ready to fire. It is displayed when the user presses the Standby/Ready mode button while the system is in Standby.
• • Brightness - This selection allows the user to control the brightness of the LCD display and the front panel control illumination. Volume - Controls the volume of system tones and voice confirmation phrases. NOTE: The volume of tones associated with errors and warnings is adjustable through the Volume Level settings only to the levels specified in Federal regulations. SETTINGS Selecting "Settings" from the Main Menu displays the system settings selections as shown in Figure 2-12.
Contrast The Contrast menu allows the user to change the contrast setting of the displays. When selected, the screen shown in Figure 2-14 is displayed and rotating the Menu knob adjusts the screen contrast. After the display has been adjusted to the desired contrast, pressing the Menu button returns the display back to the Settings screen.
Footswitch Settings Selecting the Footswitch Settings menu item from the Settings menu displays the Settings - Footswitch menu as shown in Figure 2-16. This menu provides three settings that allow the user to select the functionality of the side switches. NOTE: If the footswitch is not a multi-function footswitch, the only functional setting is "Disable." Power Control Only This selection allows the side switches to increment (left switch) or decrement (right switch) the treatment laser power.
Revert To Standby Selecting the Revert to Standby Time menu item in the Settings Menu displays the Revert to Standby menu as shown in Figure 2-18. This setting determines the time period of inactivity, in minutes, after which the system will revert to the Standby mode of operation. Inactivity is defined as no footswitch activation during the time period. The setting can be adjusted to two, five or ten minutes.
SYSTEM INFORMATION The System Information screen, shown Figure 2-20, is displayed by selecting System Information from the Main Menu. System Information includes read-only displays of patents, various system constants, message histories, and treatment totals. Figure 2-20 System Information Menu About PurePoint™ Selecting the About PurePoint™ item in the System Information menu displays information about the PurePoint™ system such as the patent numbers that apply to it as shown in Figure 2-21.
System Messages The System Messages display shown in Figure 2-23 contains a scrolling list of system messages that have been logged since the system delivered from the factory or was last factory serviced and a new laser engine installed. System Messages are defined as error, warning, or informational messages that have been displayed to the user. The latest message is displayed at the top of the list and the remaining are listed in descending order.
BRIGHTNESS LEVEL Selecting the Brightness menu item in the Main Menu allows the user to adjust the brightness levels of the LCD display along with the front panel indicator lights. When Brightness Level is selected, rotate the Menu knob until the desired brightness level is achieved. The Indicator Bar provides a visual gauge for the brightness level. When finished, push the Menu knob to save the Brightness Level changes.
THIS PAGE INTENTIONALLY BLANK 2.
