Summary of Contents for Mainline Medical TOF-Watch S
- Page 1 TOF-Watch ® Operator manual Organon (Ireland) Ltd., Drynam Road, Swords, Co. Dublin, Ireland...
- Page 2 TOF-Watch ® Operating manual page Manuel d'utilisation page Bedienungsanleitung Seite Manual del usuario página Scheme of buttons and display symbols Schéma des touches et symboles d’affichage Tastaturübersicht und Displaysymbole Esquema de los pulsadores y símbolos ® Registered trademark in one or more countries...
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Page 3: Table Of Contents
1 Hz stimulation 4.2.3 Post Tetanic Count stimulation Secondary functions 4.3.1 Stimulation 4.3.2 Double Burst Stimulation (DBS) 4.3.3 0.1 Hz stimulation button 4.3.4. µs button 4.3.5. Sensitivity button Set-up menu Survey of display 3 | TOF-Watch S Operator manual 33.516/A... - Page 4 Further information Cleaning Unusual patterns Error signals Accessories Technical specifications Symbols Warnings! 4 | TOF-Watch S Operator manual 33.516/A...
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Page 5: Scheme Of Buttons And Display Symbols
Value for TOF ratio, Twitch height, PTC or stimulation current. Percent symbol: used for TOF ratio or Twitch height. mA (µC) up button. Calibration button. mA (µC) down button. 1 Hz / 0.1 Hz stimulation button. Micro-second (µs) symbol. 5 | TOF-Watch S Operator manual 33.516/A... -
Page 6: Introduction
4 When the patient is adequately sedated, press (22) for automatic calibration (optional). 5 Hold down the button (3) for repetitive TOF stimulation. The TOF-Watch is now ready for the further monitoring of neuromuscular transmission. 6 | TOF-Watch S Operator manual 33.516/A... -
Page 7: Pre-Operative Set-Up
Attach the acceleration transducer with its’ largest flat side to the thumb by means of adhesive tape. Connect both cables to designated color-coded outlets on the TOF-Watch (reversal of the cables is not possible because of a mechanical barrier). 7 | TOF-Watch S Operator manual 33.516/A... -
Page 8: Electrodes
It has been found that slight pressure on the electrodes may improve the stimulation considerably. Therefore, taping the electrodes to the skin may be advisable. 8 | TOF-Watch S Operator manual 33.516/A... -
Page 9: Arm Position
Insufficient cleaning of the skin may be the cause of a too high skin resistance. Note that there is not necessarily any relation between high skin resistance and problems of reaching supramaximal stimulation. 9 | TOF-Watch S Operator manual 33.516/A... -
Page 10: Calibration
Long activation (long): > 1 s (acknowledged by a short beep) General functions 4.1.1 Stop / on-off button (1) short: Stops stimulation/clears display long: Turns TOF-Watch on/off (if activated more than 1 s). 10 | TOF-Watch S Operator manual 33.516/A... -
Page 11: Secondary Function Button
Stimulation strength is continuously stepped up or down. (µ ( If both up and down are activated simultaneously, the set-up mode is entered. See page 15 for more information. µC 11 | TOF-Watch S Operator manual 33.516/A... -
Page 12: Timer Function
If the TOF-Watch has not been calibrated after switching on, the will flash together with the % and an internal reference control twitch value is used for the calculation. 12 | TOF-Watch S Operator manual 33.516/A... -
Page 13: Post Tetanic Count Stimulation
TOF s stimulation is TOF stimulation with user programmable repetition time between 1 and 60 minutes. To be used in the I.C.U. or during surgery of long duration. The repetition time can be programmed in the set-up menu (see Set-up menu, page 15). 13 | TOF-Watch S Operator manual 33.516/A... -
Page 14: Double Burst Stimulation (Dbs)
4.3.4 µs button first press (4), then Change of stimulation pulse width. The µs function is used to toggle stimulation pulse width between 200 and 300 µs for neuromuscular monitoring. 14 | TOF-Watch S Operator manual 33.516/A... -
Page 15: Sensitivity Button
The setting is permanently stored in the TOF-Watch, even when the battery is removed. Press either mA (µC) up (21) or down (23) one at a time to modify the setting of the parameter. 15 | TOF-Watch S Operator manual 33.516/A... - Page 16 CAL flashing (calibration sequence selection) Determination of supra-maximal threshold, followed by calibration of transducer sensitivity at “threshold + 10%” ( max. 60 mA or 12/18 µC). Calibration of transducer sensitivity at user set current/charge. 16 | TOF-Watch S Operator manual 33.516/A...
- Page 17 Percent (used for TOF, 1 Hz and 0.1 Hz) (20). TOF: Ratio between first and fourth response. 1 Hz, 0.1 Hz: Twitch height compared with reference value, flashing symbol means that the instrument has not been calibrated after switching on. 17 | TOF-Watch S Operator manual 33.516/A...
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Page 18: Further Information
Note: The TOF-Watch can show twitch responses higher than 100%. Large twitch responses may occur especially when no calibration has been performed or for a brief period of time after administration of a depolarizing relaxant. 18 | TOF-Watch S Operator manual 33.516/A... -
Page 19: Error Signals
Operating manual. Optional Clamp for IV-pole mount. Stimulation cable (1.5 m) for a needle electrode (loco-regional anesthesia). Surface electrodes. Spare parts Acceleration transducer with (1.5 m) cable. Stimulation cable (1.5 m) for surface electrodes. 19 | TOF-Watch S Operator manual 33.516/A... -
Page 20: Technical Specifications
Symbols Attention, consult accompanying documents. Type BF equipment. IPXO Degree of protection against ingress of water (non-protected). Complies with Medical Device Directive, 93/42/EEC (class 2A). 0543 20 | TOF-Watch S Operator manual 33.516/A... -
Page 21: Warnings
Be sure only to use CE marked electrodes. Use of accessories, transducers, and cables other than the ones supplied with TOF-Watch may result in degrade electromagnetic compatibility performance of the device. 21 | TOF-Watch S Operator manual 33.516/A...