CRYOSURGERY MODULE
This module includes three separate components named Cool Surgery, Fast Freeze, and Real Stories / Real Surgery. Cool Surgery and Real Stories / Real Surgery share a common center kiosk. Each of the named components is discussed in detail in the following sections.
Description
A blue angled-top activity table where visitors run a custom computer program and perform virtual surgery to freeze tumors in a virtual liver. Externally, the table has a tethered probe ("cryoprobe") that visitors point at the virtual tumors, a "start" and two "freeze" buttons, and a trackball to rotate the liver.
Primary Components
The primary operational components include:
Table 1 provides further details about the above primary and other support components.
Consumables / Spare Parts
Consumables include only air filters related to this activity. Spare parts provided for each rental are listed in Table 2.
Special Instructions
Daily start-up procedure: Start-up primarily is automatic. However, after main gallery power is on, technical staff must open the rear access panel on the activity table (use round barrel key) and push in the main power button on the UPS unit face. The program should load and begin automatically and the table buttons will light. If there are errors, consult the Trouble Shooting section below or in the supplemental manual for this exhibit piece, entitled "The Flock of Birds®, Position and Measurement System, Installation and Operating Guide". Be sure to replace and lock the access panel.
Daily shut down procedure: BEFORE turning off gallery power, the program and computer must be manually shut down. Open the front and rear access panels on the activity table using a round barrel key. Hit "Esc" key on top left of keyboard to escape program. Hit the windows button on the keyboard (or click with the left mouse button on "Start" at the lower left side of the screen) to bring up the shutdown menu. Select "shutdown" (click with either the left mouse button or hit appropriate shortcut key "U") and then accept it (click with left mouse button on "Yes" or hit shortcut key "S"). When computer shutdown is complete (watch for the "It is now safe to turn off your computer" message on the monitor, or the "Dell" screen), push in the main power button on the UPS unit face to disconnect power. Replace access panels (make sure filters are in proper position) and lock. Shut down gallery power.
General Maintenance
Maintenance items are simple and deal with exhibit ventilation/air filtering, lighting, and general cleaning. Table 3 should be followed for specific maintenance items and their frequency. It also serves as a form to record that maintenance was completed.
Troubleshooting
The first two troubleshooting sections below (regarding buttons) apply to Cool Surgery, and also are applicable to (and referenced in the trouble shooting sections for) Endoscopes – Virtual O.R., and Gamma – Targeting. The other troubleshooting sections are specific to Cool Surgery.
Lighted buttons don’t respond: First visually/manually check for obvious wiring/shorting problems. Use your exhibit barrel key to open the nearest access panel to the problem button(s). Two wires operate each button’s electric switch (Fig. 1). They are connected to the lower two of the three sideways-facing switch prongs. The two downward-facing prongs power the lamp. Check to see if the connections are loose, broken or frayed on the switch prongs or leading to the controller circuit board. Replace or repair the terminated ends or wire as appropriate (replacement connectors and wire are provided in the Zap tool kit). Also, check that the wire connectors are not touching (metal against metal) another switch prong (these connections can inadvertently be bent easily when pushing the lamp holder into the button base, causing a short of the switch operation).
If the wires are all properly connected, next check the button and switch for proper operation. With the switch still installed, depress the button and listen carefully for a definite click sound from the switch. If a click is not heard, make certain that the lamp holder and integral switch are pushed firmly into the button base. If they are seated properly, but still don’t work (no click), remove the lamp holder and switch and depress the small red button on the switch itself. If the switch works, attempt to properly seat the lamp holder and switch again in the button base. The proper seating procedure is to first push slightly inward, then rock the entire assembly to the right until a click is heard, and lastly rock the assembly to the left until another click is heard. If a proper seat cannot be achieved, replace the entire button body from Zap spares. If the switch itself is bad, replace it with a unit from Zap spares.
If the wiring seems intact and buttons appear to be functioning, but still not responding, press "Esc" on the keyboard and shut down the computer as usual (see Special Instructions above). Restart the computer and re-test the button.
Lastly, if the buttons still don’t respond, check the button controller adapter/power pack and the controller itself (Fig. 2). The adapter/power pack (5-volt DC) is plugged into the UPS. If the buttons are it, this adapter likely is fine because it both powers the controller and lights the lamps. However, if none of the buttons are lit, check that the power pack is plugged in securely. If it appears to be defective, replace it from Zap spares. Alternatively, if the power pack appears fine and thus the controller is suspect, replace the button controller circuit board from Zap spares (shut down the program and computer first) and re-try the system.
Figure 2: Controller
Figure 3: Button lamp wires
Button(s) not lit: If an individual button lamp appears to be out, access the underside of the button by removing the appropriate access door with the round barrel key. First, check that the two wires powering the lamp (the wires on the two prongs facing directly downward from the lamp holder) are firmly connected to both the lamp holder prongs (Fig. 3) and to the power source. If the wiring seems intact, carefully pull the lamp socket and integral button switch out of the button base, replace the lamp from Zap spares (note lamp markings carefully to obtain proper bulb), and re-install firmly.
If all buttons are unlit, refer to the discussion in the section immediately above relating to the button controller power pack/adapter.
"Virtual Memory Low" message displayed on screen: Shut computer down (following procedure in Special Instructions section above, except don’t turn off UPS) and then click with left mouse button on "restart" or hit enter to accept when shown on display.
"Cryoprobe" receiver/sensor not working: Open the rear access door of the activity table using a round barrel key. Check that the sensor cable is securely plugged into the rear of the positioning system electronics unit, that the transmitter box is plugged securely into the front of the electronics unit, that the connections between the electronics unit and computer are tight, and that the electronics unit "ready" light is lit steady (a steady light indicates both that the positioning system is powered and is not detecting an error). If all these conditions seem fine, change the sensor as described below using a Zap spare. However, change the positioning system power pack if a ready light is not displayed on the electronics unit (and main power is first confirmed available to the power pack plug).
To install a replacement power pack, plug it first into the back of the electronics unit, switch to STDBY on the front of the electronics unit, plug the power pack into the AC power source, and then switch back to FLY on the front of the electronics unit.
If the sensor seems faulty, first power the exhibit down (as described in the Special Instructions section above) and try a new sensor from Zap spares (without permanently installing it into the cryoprobe body). To do this, unplug the old sensor cable from the rear of the positioning system electronics unit and plug in the replacement sensor. Power the exhibit back up (see Special Instructions section above), stretch the test sensor cable out so that the sensor end is located near the cryoprobe body and move the sensor end around as you would the cryoprobe to do virtual surgery. If the test sensor works, power down the exhibit again and proceed as below to completely replace the sensor.
To complete sensor replacement, pull off the black cryoprobe end cap (cut off carefully if necessary by splitting with a utility knife). Split the probe in half longitudinally by removing the two hex head screws in the body. On the underside of the tabletop where the sensor cable bundle extends into the table, remove the single hex head screw (pointing downward) that holds a cable clamp up onto the center plate. From the tabletop area, remove the silver plate (it splits into two halves) that surrounds the sensor cable bundle where it enters the tabletop. Carefully pull about 6 inches of the cable bundle down into the table underside and then remove the hex head screws to split the cable clamp apart. With everything now loose, completely unwrap the blue cable wrap to expose the sensor cable (Fig. 4). Remove the sensor from the open cryoprobe body (the black cable relief on the bottom of the cryoprobe body will split in half longitudinally), and pull the sensor and cable down into the tabletop opening and completely out. Install the new sensor from Zap spares, making sure that the steel restraint cable will take all shocks from pulls on the assembled probe cable bundle. Restart the exhibit and close/lock all access doors.
If the above steps have not resolved the problem, replace the positioning system electronics unit from Zap spares (power down the exhibit first before disconnecting and reconnecting).
Cryoprobe steel tether cable broken: Follow sensor replacement procedures in section above to expose and remove broken steel cable. Replace steel cable from Zap spares.
Trackball not working: First check that all wire connections/jacks between the trackball and the controller are tight. Also check the adapter/power pack as described above with respect to the buttons.
If it is determined that the trackball needs replaced, power down the exhibit as described above in "daily shut down". Gently pry up the label ring on the tabletop titled "rotate liver" around the trackball (the ring is held on with double-sided tape). Remove the four phillips head screws while supporting the trackball assembly from beneath. Unplug the two wiring jacks and remove the old trackball. Replace the trackball from Zap spares (being careful that the wiring jacks are connected properly), replace the label ring (use new double-sided tape), and restart the exhibit (see above in "daily start-up").
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Description
Fast Freeze is a separate walk-in space (full-body experience) where visitors are exposed to a cold atmosphere while they view a video (DVD) about cryosurgery where diseased cells/tissue are treated by exposure to cycles of extreme cold and thawing. Visitors control a "start" button" that initiates the video segment.
Primary Components
The primary operational components include:
Table 1 provides details about the above primary, as well as other support components.
Consumables / Spare Parts
Air filters are the only consumables associated with this activity. Spare parts provided for each rental are listed in Table 2.
Special Instructions
Routine maintenance (air filter cleaning) is of greatest importance to prevent air conditioner unit overheating (see General Maintenance below).
General Maintenance
Maintenance is easy and involves exhibit ventilation/air filtering, monitoring/draining of air conditioner condensate, lighting, and general cleaning. Follow Table 3 for specific maintenance items and their frequency. Also, use the form to record that maintenance was completed.
Troubleshooting
All troubleshooting sections presented below apply to Fast Freeze, and also are applicable to (and referenced in the trouble shooting sections for) the following exhibits (except the last troubleshooting section on air conditioner units applies to Fast Freeze only):
Lighted button doesn’t respond: Use your exhibit barrel key to open the inside access panel covering the television and DVD player. First, check to see that the infrared transmitter is taped securely to the left side of DVD player (in front of remote control sensor window, just below the power button). If it is out of place, re-affix with double face tape (Fig. 5).
Figure 5: Infrared transmitter
Figure 6: Control box
If the infrared transmitter is secure, next visually/manually check for obvious wiring/shorting problems. Two wires operate the "start" button electric switch. They are connected to the lower two of the three sideways-facing switch prongs. The two downward-facing prongs power the lamp. Check to see if the connections are loose, broken or frayed on the switch prongs. Replace or repair the terminated ends or wire as appropriate (replacement connectors and wire are provided in the Zap tool kit). Also, check that the wire connectors are not touching (metal against metal) another switch prong (these connections can inadvertently be bent easily when pushing the lamp holder into the button base, causing a short of the switch operation).
If the wires are all properly connected, next check the button and switch for proper operation. With the switch still installed, depress the button and listen carefully for a definite click sound from the switch. If a click is not heard, make certain that the lamp holder and integral switch are pushed firmly into the button base. If they appear to be seated properly, but still don’t work (no click), remove the lamp holder and switch and depress the small red button on the switch itself. If the switch works, attempt to properly seat the lamp holder and switch again in the button base. The proper seating procedure is to first push slightly inward, then rock the entire assembly to the right until a click is heard, and lastly rock the assembly to the left until another click is heard.
If a proper seat cannot be achieved, remove the lamp holder and switch again from the button base. Remove the black button lock nut to loosen the rear metal mounting plate (metal plates are used only on the jumbo-size buttons). Place a heavy rubber band around the widest section of the metal mounting plate, just to the side of the center mounting hole, and replace the plate and lock nut. Reinstall the lamp holder and switch, pull the wiring to the side of the switch, and then stretch the rubber band over the back of the switch (directly over the section with the small red button) to create slightly more tension on the assembly. Should these troubleshooting measures not work, replace the entire button body from Zap spares.
If the switch itself is bad (no click when the small red button is depressed), replace it with a unit from Zap spares.
If the button itself appears to be functioning, but the DVD player still is not responding, turn off the exhibit power momentarily (wait about a minute to restore power) to see if the controller (Fig. 6) just needs reset. If this procedure does not rectify the problem, it is possible that the wire connections inside of the controller box may have come loose. Carefully remove the controller enclosure and check the leads from the button and the infrared transmitter.
Button not lit: If the "start" button lamp appears to be out, access the underside of the button by removing the appropriate access door with the round barrel key. First, check that the two wires powering the lamp (the wires on the two prongs facing directly downward from the lamp holder) are firmly connected to both the lamp holder prongs and to the power source. If the wiring seems intact, carefully pull the lamp socket and integral button switch out of the button base, replace the lamp from Zap spares (note lamp markings carefully to obtain proper bulb), and re-install firmly.
Blue screen/no video appears on monitor: A blue screen accompanied by a "no disc" or "cannot play this disc" message, may occur periodically and should automatically correct itself. The custom DVD player controller/button interface is designed to sense lack of video playback, and within about one minute shut down and then restart the player. However, if this condition repeats (shut down, restart, blue screen, shut down, etc.), check if the photoelectric sensor (a black foam circle about one inch in diameter, Fig. 7) still is taped to the DVD player front panel (located on the left side, over the white "play" arrow indicator). If the sensor has become dislodged, make certain that the actual photoelectric cell is visible in the center hole of the adhesive side of the foam. Then reaffix the sensor directly over the white display arrow with tape (be careful not to tape the DVD player disc drawer closed). Once corrected, the controller should restart the player, the screen saver should begin playing on the monitor, and the counter for the video segment should be visible on the player front.
Figure 7: Photoelectric sensor
Figure 8: Air conditioning unit
Should a blue screen condition occur erratically and with increased frequency, but the photoelectric cell is firmly attached to the DVD player front panel, replace the DVD player from Zap spares.
Air conditioner unit needs replaced: Remove both the air inlet cover and light panel cover below it. Push the "off" button and then unplug the power cord. Remove two recessed philips head screws extending downward into the steel air conditioner case through the wood panel (near the front) overlying the unit. Pull / slide the unit smoothly out of the unit’s steel case (two people required) using the handle at the bottom, center of the unit (Fig. 8). Obtain a replacement unit from Zap spares and slide it (again, two people needed) into the steel case. Secure the unit into the outer steel case by reinstalling the two recessed screws from the top through the wood panel. Plug the unit in, push the "on" button, set the unit on high air conditioning, and set the temperature to 60º.
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COMPONENT NAME – REAL STORIES / REAL SURGERY
Description
A blue-framed activity table where visitors choose from various labeled buttons to view video (DVD) segments on actual cryosurgery procedures. The visitors control this activity using two extra large blue video segment buttons, plus one stop button.
Primary Components
The primary operational components include:
Table 1 provides further details about the primary and support components.
Consumables / Spare Parts
Air filters are the only consumable items associated with this activity. Spare parts available are listed in Table 2.
Special Instructions
None
General Maintenance
Maintenance is easy and involves exhibit ventilation/air filtering, lighting, and general cleaning. Follow Table 3 for specific maintenance items and their frequency. Also, use the form to record that maintenance was completed.
Troubleshooting
Refer to Cryosurgery – Fast Freeze troubleshooting section regarding problems such as: