E-IM54f P11/37
TD830
ELECTROSURGICAL UNIT
4.0 INTRODUCTION
GENERAL
Note: For numbers in brackets refer to Illustration 11 which
folds out at the end of this manual.
4.1 The TD830 electrosurgical unit provides two outputs
both for high power monopolar cut and coag (on a first
come first served basis), together with a separate output
for bipolar coag. Bipolar coag output is available
simultaneously with either monopolar output. The unit
incorporates touch button controls, seven segment LED
(light emitting diode) displays and LED visual indicators.
4.2 The digital displays can show two scale modes, one
shows the
typical
power available in watts the second
shows a numerical value up to 10 (the latter is only
displayed whilst digital display range selection toggle button
(35) is held pressed).
Note: The power delivered depends on the resistance
between the active electrode and the plate electrode (or
between the tips of bipolar forceps) at the time the power
is applied. This resistance can vary widely and many times
per second during the application of h.f. output.
4.3 The unit incorporates several alarm code indicators
as detailed in the Technical Data section. Innovative safety
features include a divided plate electrode monitoring
system called the Plate Attachment Monitor (PAM) as well
as the standard Eschmann Plate Voltage Monitor (PVM),
Patient Earth Monitor (PEM) , and Plate Continuity Monitor
(PCM). An Excess Power Monitor (EPM) and a Multiple
activation alarm are also included. A high frequency
leakage control circuit is included in the monopolar mode.
4.4 Within this manual the terms USER 1 and USER 2 are
used to distinguish between the two monopolar outputs.
The bipolar output is fully independent of the monopolar
output and can be considered as USER 3.
OPERATING MODES / DISPLAY OPTION
Monopolar mode
4.5 The monopolar operating mode offers a choice of
fingerswitch or footswitch control of ‘cut’ or ‘coagulation’
outputs for USER 1. Fingerswitch operation utilises the
Eschmann two-button fingerswitch whilst footswitch control
requires the use of an active electrode handle in conjunction
with one of a range of electrical footswitches.
Bipolar mode
4.6 Bipolar coag is an efficient method of effecting
haemostasis, and closure of vessels such as Fallopian
tubes. It is extremely safe to use, as the main current path
is between the tips of the bipolar forceps and the tissue
held between them is directly in view of the surgeon at all
times.
4.7 A plate electrode is not required and safety is
increased even further as two power range outputs are
available allowing precise setting of the power output.
4.8 The bipolar mode of operation offers a choice of
footswitch, electrical or pneumatic.
Monopolar standby mode
4.9 The unit can be switched into monopolar standby
mode, in which only bipolar power is available, using
monopolar standby selection button (32). This button is a
toggle switch, each press of the button will turn monopolar
mode ‘on’ (if ‘off’) or ‘off’ (if ‘on’). This button (32) can be
considered as an ‘on/off’ switch for monopolar, the
advantage being that if only bipolar outputs are required
and monopolar standby mode is selected, no plate
electrode needs to be connected to the unit. (If monopolar
standby mode is not selected for ‘bipolar use only’ and a
patient plate electrode is not connected to the unit the PAM
alarm or PCM alarm will activate). The unit is in monopolar
standby mode when only the digital display for bipolar can
be seen illuminated.
Digital display options
4.10 The digital displays normally show the
typical
power*
available in watts. The digital displays can also show a
numerical value up to 10 (maximum). To display the power
setting as a numerical value up to 10 press and hold the
digital display range selection button (35). The display will
revert to the normal setting (and display the
typical
power*
available in watts) when the button is released. (
* typical
power
is an indication of the average power delivered over
a range of load resistances. It is less than the power
delivered to the rated load for maximum power.)
ACCESSORIES
4.11 The equipment is designed to be used with the
Eschmann range of active, plate and bipolar cables. The
front panel is colour coded, PALE BLUE for bipolar,
YELLOW for monopolar cut, blend and specialist cut, and
BLUE for monopolar coag. For a list of all accessories and
an index of accessory illustrations, see section 7.
ASSOCIATED PUBLICATIONS
4.12 This manual contains preparation for use, and
operation instructions only. For a detailed technical
description, together with complete maintenance
procedures including an illustrated parts list refer to the
TD830 Service Manual E-SM44 (part number 698260).
EQUIPMENT CERTIFICATION
4.13 The electrosurgical unit fully complies with the major
international safety standards (see Technical Data).
CAUTION
This electrosurgical unit is to be operated by
medically qualified personnel only.
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