Zeiss S22 Floor Stand

Introduction

General Information

The Zeiss S22 Floor Stand is designed to connect a motorized operation microscope and is particularly suitable for use in ophthalmic surgery. It can support equipment weighing up to 19 kg on its outer carrier arm (1). The inner carrier arm (2) houses two lamp slide-in modules, each with a 12 V/100 W halogen bulb, to supply fiber light guides. A spare lamp module is provided on the back of the stand. The stand column can be vertically adjusted within a range of 200 mm using a foot or hand control panel. An emergency stop button is integrated into the front of the stand. Two rotary knobs control the brightness of the fiber illumination, with one convertible to control halogen bulb illumination for connected instruments.

Diagram of Stand (Page 5)

The diagram shows a robust floor stand with a stable base, a vertical column, and two articulated arms. The outer carrier arm (1) is positioned to hold a microscope, while the inner carrier arm (2) houses lamp modules and connections.

Diagram of Components (Page 6)

This diagram details various parts of the stand. It labels the outer carrier arm (1), the main column with controls and indicators (2, 3, 8, 9), and numerous controls, selectors, and connectors on the lower section (10-18). It also shows plugs for electrical supply (19, 20, 21) and attachment hardware (22, 23).

Controls (Page 7)

• 1 Upper part of stand.
• 2 Indicator scale for vertical travel.
• 3 Stand column: Can be rotated 180° if requested, but the upper part must not be rotated for safety reasons (toppling risk).
• 4 Ventilation grid: Must not be covered to prevent overheating and lamp failure.
• 5 Thermal cutout buttons: Interrupt power if a lamp module overheats. Cause of overheating must be eliminated before resetting.
• 6 Knurled screw: Locks the inner carrier arm and sets its motion resistance.
• 7 Knurled screw: Locks the outer carrier arm and sets its motion resistance.
• 8 Spare lamp module: See also items 10 and 11.
• 9 Handles: For maneuvering the stand.
• 10 Lamp module: For fiber illumination. Brightness adjusted by knob (13). Easily replaceable.
• 11 Lamp module: For fiber illumination. Brightness adjusted by knob (16). Easily replaceable.
• 12 Door of lamp compartment: Contains selectors (14, 17) for illumination functions (F=Fiber, H=Halogen).
• 13 Knob: Controls brightness and ON/OFF for fiber or halogen illumination (controls lamp module 10).
• 14 Selector: Located under a cap; settings shown inside door (12). Requires a screwdriver.
• 15 Main ON/OFF switch: With indicator light.
• 16 Knob: Controls brightness and ON/OFF for fiber illumination (controls lamp module 11).
• 17 Selector: Located under a cap; settings shown inside door (12). Requires a screwdriver.
• 18 Stop button: Emergency stop for motorized column movement. Turn to release lock.
• 19 Plug (7-pole): For X-Y coupling electrical supply.
• 20 Plug (5-pole): For focus/zoom action electrical supply of the microscope.
• 21 Pair of jacks: For halogen bulb illumination system (e.g., surgical slit illuminator).
• 22 Knurled screw: Locks or releases the OPMI carrier stem.
• 23 Safety screw: Must be screwed in and tightened firmly when mounting a microscope or coupling.

Diagram of Base Components (Page 8)

This diagram illustrates the stand's base and lower column. It shows a bracket for winding the power cable (1), a connector for control panels (2), a cover plate for fuses (3), a voltage indicator disk (4), the power cable (6), screws for mounting a tray (7), a bracket for hanging the foot control panel (8), a power rating plate (9), and locks for positioning the stand (10). A plate specifying fuse ratings (11) is also indicated.

Important for Safety:

• Ensure safe operation by familiarizing yourself with the instrument.
• Read operating instructions carefully before use.
• Keep the operating manual within easy reach.
• Do not operate in explosion-risk areas.
• Operate only by trained personnel.
• Ensure equipment is complete and functioning before use.
• Go through the check list on page 10.
• Operate only with specified instruments.
• Check voltage setting matches your country.
• Implement accident-prevention provisions regularly.
• Alterations and repairs must be done by the manufacturer or authorized persons.
• When assembling the stand, ensure the upper part points correctly relative to the base (Fig. 1).
• Ensure ventilation slots are not covered.
• Always disconnect the power plug before repairing electrical defects.
• For transport, fold arms in and clamp securely.

Emergencies

• Smoke from stand: Pull out power plug.
• Column moves downwards by itself: Press red stop button.
• Illumination fails: Insert spare lamp module.

Operation

Mounting the Microscope Equipment

The following steps describe mounting an OPMI 6 S FR XY on the S22 Floor Stand:

• Unscrew safety screw (4).
• Feed plug (7) through the reception bore of the arm and securing screw (10).
• Insert microscope carrier stem (5) into the reception bore and tighten securing screw (10) firmly. Grease stem before insertion.
• Screw safety screw (4) firmly in again.
• Lock operation microscope using knurled screw (11).
• Screw objective (15) into the microscope body.
• Place binocular tube (12) on microscope body and secure with screw (14).
• Screw eyepieces (13) on to the straight tube.
• Open covers (1), (2), and (3).
• Plug FC light guide (6) into the lamp module and arrange as shown.
• Plug FC light guide into the microscope and secure with the grub screw.
• Insert plug (7) into the 7-pole connector.
• Feed plug (8) from the microscope through the carrier arm and insert into the 5-pole connector.
• Arrange FC light guide (6) and cables (7, 8) so only necessary length hangs outside the arm.
• For instruments with halogen bulb illumination (e.g., surgical slit illuminator), connect the instrument plug to the pair of jacks (9).

Diagram for Mounting (Page 9)

This diagram illustrates the process of attaching a microscope to the stand's arm. It shows the stand's arm, carrier stem, securing screws, and various plugs and connectors for power and light guides. Numbered parts correspond to the text instructions for attaching the microscope, binocular tube, eyepieces, and connecting FC light guides and power cables.

User Check List

The following points must be checked before each operation (without patient):

• Make power connection with cable (9).
• Connect foot control panel (or hand control panel) to connector (7).
• Check whether locks (8) can be engaged and disengaged.
• Ensure securing screws (1) and (2) are tightened firmly.
• Switch on main switch (5) on the stand.
• Check whether the lamps (including spare lamp) are working properly.
• Check whether power is supplied to the focusing and zoom systems and the X-Y coupling through their total adjustment ranges using a hand or foot control panel.
• Check motorized height adjustment of the column within the total range of travel.
• Check whether the emergency stop button is working.
• Adjust the stand so that wing (10) points towards the surgical field.
• Position operation microscope and tighten screw (3).
• Set motion resistance using knurled screws (4).
• Check optical image throughout the total magnification range.

Caution: If a function fails, do not use the unit. Eliminate the cause or contact the service department. If a function fails during surgery, try to remedy the situation or contact the service department.

Diagram for Check List (Page 10)

This diagram provides a simplified view of the S22 Floor Stand, highlighting key areas relevant to the user check list. It shows the stand's arm, column, control panel connectors, securing screws, main switch, and the wing (10) that should point towards the surgical field.

Maintenance

Changing the Lamp Assembly

Note: If a halogen lamp (1) fails during operation, the complete lamp module (3) should be changed for the spare lamp module (item 8, page 6).

For changing the halogen lamp (1) itself, proceed as follows:

• Pull lamp out of ceramic socket (4) and remove from module (3).
• Insert new halogen lamp.
• Ensure the centering lug (2) engages the recess in the module.
• Push ceramic socket (4) on to lamp base.

Diagram for Lamp Change (Page 11)

The left diagram on page 11 shows a halogen lamp (1) being removed from its ceramic socket (4) and module (3). A centering lug (2) on the lamp is shown engaging a recess in the module.

Mounting a Filter

Lamp module (7) can be retrofitted with a filter. Proceed as follows:

• Remove cap (5) from opening (6) in the lamp module.
• Push washers (9) and bushing (8) on to bolt (10).
• Push bolt (10) through opening (6).
• Push washer (4) and knob (3) on to bolt (10) and tighten with screw (2).
• Press cap (1) into opening of knob (3).

Diagram for Filter Mounting (Page 11)

The right diagram on page 11 illustrates mounting a filter onto a lamp module (7). It shows the components involved: a bolt (10), washers (9), bushing (8), knob (3), screw (2), and cap (1), being assembled into the lamp module.

Troubleshooting

Troubleshooting Table (Page 12)

Malfunctions and Remedies (Page 13)

Specifications and Delivery

Delivery Package

The S22 Floor Stand, complete, for operation microscopes with FC illumination, comprises:

• S22 Floor Stand (1)
• 12 V/100 W halogen lamp
• FC light guide 1.8 m
• Small sterilizable rubber cap for OPMI and 3-step magnification changer
• (1) also required for USA: set of fuses for S22

Specifications Table

Subject to change

Sterilization Methods

Gas (ETO) Sterilization

Standard ETO is acceptable for use with Kraton™ thermoplastic rubber based compounds. The ETO gas will penetrate the Kraton, plasticize it and relieve molded in stresses or imposed stresses on the part.

Aeration time is greatly dependent on the size of the master carton and its permeability. One week is the minimum requirement to bring the ETO residuals below 1 PPM, as tested by the standard liquid extraction method. If the product is heated to 125-135 F in an aeration chamber with high airflow, the time can be accelerated to as little as four days.

Gamma Sterilization

Kraton thermoplastic rubber can be sterilized using gamma radiation without suffering a large loss in physical properties even after extended storage.

Kraton G-2705 rubber was exposed to Cobalt 60 radiation doses of 3, 6, and 12 Mrads. The table below shows the effect of the radiation on the tensile properties of the material after being aged for 21 months.

Steam Sterilization

GLS Corporation can suggest the following maximum autoclave cycles for selected materials**:

• 250 F for 17 minutes
• 240 F for 27 minutes.

There will be some slippage or creep with any Kraton thermoplastic rubber based products at these temperatures because of the relieving of molded in stress and the relaxation of imposed stresses. To minimize these effects, parts should be molded at the suggested processing conditions; and not autoclaved while being subjected to outside mechanical stresses.

* Information pertains only to Kraton G-based compounds
** Information pertains only to Kraton G-2705 compound.

Disposables

Spare Bulbs

Sterilizable Knob Covers

Dust Covers

Foot Control Covers

Drapes