User's Manual Part 4

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8065751131 4.1

INTRODUCTION

This section of the manual is designed to inform the operator of basic care and

maintenance of the instrument. It is recommended to verify the calibration annually.

In the event that recalibration is required, it is also recommended that the procedure

to recalibrate the system be performed by Alcon Technical Services personnel. If

a problem occurs on the instrument, call the Alcon Technical Services department

and give details of the circumstances and effects. From these elements, a specialized

technician will evaluate the problem and determine the maintenance requirements.

WARNINGS!

Maintenance on any part of the laser system must be performed with the laser

off and the main power plug disconnected.

When keyswitch power is on, all individuals in the laser room must wear laser

protective eyewear, OD 4 or above at 532 nm.

CAUTION

There are no operator replaceable parts other than the fuse. Contact Alcon Technical

Services for all servicing issues.

Care and Cleaning

WARNING!

A qualified technician must perform a visual inspection of the following components

every twelve months:

• Warning labels (see Section One)

• Power Cord

• Fuses

In case of a deficiency, do not use the system; call Alcon Technical Services.

A qualified technician must check ground continuity and both polarities for leakage

current every twelve months to ensure they are within the applicable standards

(for example: EN60601-1/IEC601-1). Values must be recorded. If they are above the

applicable standards, or 50% above initial measurement, do not use the system;

call Alcon Technical Services.

The following tips are recommended for proper care of the

PurePoint™

Laser

system:

• Turn off the system correctly after each use with the rear panel switch.

• Cover the slit lamp with the plastic cover.

• Cover the ﬁ ber optic connector with the dust cover.

• Cover the ﬁ ber port with the dust cover.

• Clean the exterior portion of the equipment with a dry, lint-free cloth or tissue. No other

products can be used.

• Use care not to damage or scratch the laser apertures or ﬁ ber optic connector.

• Place the system into its traveling case when moving to another location.

SECTION FOUR

CARE AND MAINTENANCE

Summary of content (12 pages)

PAGE 1
SECTION FOUR CARE AND MAINTENANCE INTRODUCTION This section of the manual is designed to inform the operator of basic care and maintenance of the instrument. It is recommended to verify the calibration annually. In the event that recalibration is required, it is also recommended that the procedure to recalibrate the system be performed by Alcon Technical Services personnel. If a problem occurs on the instrument, call the Alcon Technical Services department and give details of the circumstances and effects.
PAGE 2
• Inspect ﬁbers to ensure that they have not been compromised, i.e., chips, cracks, or loose connectors. The condition of the following system hardware components must be checked periodically to identify any fault that may affect system operation: • Chassis appearance. • Operation of controls and indicators. • State of the ﬁbers and connecting cables. Damaged hardware must be replaced to ensure safe operation. Call Alcon Technical Services for assistance.
PAGE 3
CALIBRATION VERIFICATION Calibration veriﬁcation must be performed at least every twelve months to verify that the laser output is within tolerance and calibration is not required. It is recommended to call Alcon Technical Services before conducting the calibration veriﬁcation procedure. CAUTION Serious damage to the instrument may occur if these procedures are not performed by qualiﬁed personnel.
PAGE 4
1 Exposure Time Veriﬁcation 1.1 Setup the system as shown in Figure 4-1. (Where slit lamp is not used, connect a test ﬁber or endoprobe and direct the distal output into the photo cell.) Slit lamp adaptation Laser Beam Photo Cell Slit lamp Oscilloscope Figure 4-1 4.4 Exposure Time Test Conﬁguration (shown for slit lamp) 1.2 Set spot size to 250 microns on the zoom. Adjust the distance between the slit lamp and photo cell to obtain a beam size of 2mm or more on the photo cell.
PAGE 5
2 Slit Lamp Power Veriﬁcation 2.1 Setup the system as shown in Figure 4-2. Slit lamp adaptation Laser Beam Wattmeter Cell Slit lamp Wattmeter Figure 4-2 8065751131 Power Test Conﬁguration (shown for Slit Lamp) 2.2 Set the exposure time to CW. 2.3 Set spot size to 250 microns on the zoom. Adjust the distance between the slit lamp and wattmeter cell to obtain a beam size of 2mm or more on the wattmeter cell. Use aiming beam to determine spot size on the wattmeter cell. 2.
PAGE 6
4 LIO Power Veriﬁcation 4.1 Setup the system in a similar conﬁguration as shown in Figure 4-2, to direct the LIO distal output beam into the wattmeter cell. 4.2 Set the exposure time to CW. 4.3 Set the treatment power to 0.10 W then press the Standby/Ready key. 4.4 Fire the laser and record the power reading as determined from the Wattmeter. 4.5 Repeat steps 4.3 and 4.4 for each value listed in the LIO section of Table 4-1. 5 Energy Matrix Completion 5.
PAGE 7
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PAGE 8
6 Setting the Terminal Efﬁciencies If unable to sucessfully complete the Energy Matrix table, use the following procedure to adjust the Terminal Efﬁciencies, and retest. 6.1 With the unit off, connect the service ethernet cable between the console and service computer. and turn unit ON. Turn the computer ON and start the browser program. 6.2 Type the IP address into the address box: 161.61.112.69, and hit return. When the page loads, enter the password: ngl1 6.
PAGE 9
SYSTEM CALIBRATION WARNING! Laser light emitted from the ﬁber and laser head is powerful enough to cause serious eye or skin damage. Maintenance should be performed only by properly trained personnel, following established guidelines for laser safety. The use of protective eye wear is mandatory. 1 With the unit off, connect the service ethernet cable between the console and service computer. and turn unit ON. Turn the computer ON and start the browser program.
PAGE 10
11 4.10 Pmon 1 Low-Power Calibration 10.1 Select Port 1 on the console. 10.2 Press “Start Pmon Calibration” on computer. 10.3 Set laser in CONTINUOUS mode on the console. 10.4 Set POWER to 100mw on the console. 10.5 Select READY mode on the console. 10.6 Fire the laser and measure output power directly from Port 1. 10.7 Press “Start Calibration” on the computer 10.8 Input 100mW into the Low Power Display ﬁeld. 10.
PAGE 11
AIMING BEAM / LIO ILLUMINATION CALIBRATION 1 With the unit off, connect the service ethernet cable between the console and service computer. and turn unit ON. Turn the computer ON and start the browser program. 2 Type the IP address into the address box: 161.61.112.69, and hit return. When the page loads, enter the password: ngl1 3 Aiming Beam Calibration - 4. 8065751131 3.1 Adjust aiming beam power output for Port 1 to 0.9 - 0.99mW. 3.2 Click “Set Max Value” on the computer. 3.
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