User's Manual Part 4

2.90 8065751025
Constellation
®
Vision System
Figure 2-67 Surgery Screen: Scissors Mode - MultiCut
Calibrate On/Off Button - Enters Calibration Mode allowing the user select and
set the pressure at Start and Close.
- When Start is selected, the Start pressure is applied to the port and the Start Up/
Down buttons are active on the Pressure control to allow adjustment of the Start
pressure.
- When Close is selected, the Close pressure is applied to the port and the Close
Up/Down buttons are active on the Pressure control to allow adjustment of the
Close pressure.
- Pressing the "Save Calibration Values" button saves these values.
Scissors Mode
The Scissors mode provides cutting capability using pneumatically powered
scissors controlled by the footswitch. The pneumatically powered scissors uses a
microscissors snapped onto the Alcon/Grieshaber pneumatic handpiece, which is
connected via tubing to a front panel pneumatic port. Two submodes are available:
•
MultiCut and Prop (Proportional). In Scissors Mode the surgery screen contains
panels for controlling scissors and bimanual forceps.
Scissors Mode: MULTICUT SUBMODE
In the
MultiCut submode, pressing the footpedal activates the scissors at a Cut Rate
proportional to the footpedal position up to the preset End limit, set by pressing the
up/down buttons next to the End limit readout. Single cuts are possible by adjusting
the cut rate to 1 cpm and momentarily pressing the footpedal.
The controls for each panel in Scissors MultiCut submode have the following
functions:
Cutting Panel:
Cut Rate End Up/Down Buttons - Sets the cut rate. •