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Receiving unit

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Receiving unit

The receiving unit, connected to the workstation via USB, allows the wireless reception of the signals
acquired by the wireless probes (

).

Figure 5.1

A single receiving unit is able to handle simultaneously 10 different wireless probes selectable
among EMG, FSW (covering up to 4 contact areas each) and EGN probes (

).

Figure 5.2

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Содержание Freeemg 1000

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Страница 3: ...Document Number EREMB 01200 10 Published February 2018 Copyright 2015 BTS SpA All Rights Reserved ...

Страница 4: ...emory 16 6 3 EMG probes status LED 17 6 4 EMG probes battery status 18 6 5 How to turn on and off the EMG probes 19 7 Footswitch and electrogoniometer kits 21 7 1 FSW and EGN wireless probes 21 7 1 1 FSW and EGN probes components 21 7 1 2 FSW and EGN probes status LED 22 7 1 3 FSW and EGN probes battery status 23 7 1 4 How to turn on and off the FSW and EGN probes 23 7 2 FSW sensors 23 7 3 Electro...

Страница 5: ...nt preparation 76 12 Troubleshooting 80 13 Warnings 83 14 Appendix A Technical specifications 85 14 1 EMG wireless probes 85 14 2 FSW and EGN wireless probes 86 14 3 Receiving Unit 86 14 4 Expected Useful Lifetime 87 14 5 IP Ingress Protection Rating 87 15 Appendix B Conditions for operation storage and transport 88 15 1 Cleaning 88 16 Appendix C Battery 89 17 Appendix D RF Channel 90 18 Appendix ...

Страница 6: ...Table of contents 3 24 Appendix K BTS internal coding 104 25 Appendix M Regulatory notice 105 ...

Страница 7: ...S product All trademarks are registered by the respective owners The licencing terms of the software provided with the BTS FREEEMG 1000 are described in the end user license agreement that must be accepted by the user to complete the software installation Remember that the use of the software is permitted on only one computer at a time In order to use the software on additional hardware platforms ...

Страница 8: ...it is classified as medical equipment in accordance with European Directive 93 42 EEC and its amendments BTS FREEEMG 1000 must be used at all times for this purpose only by qualified personnel in an environment suitable for the execution of EMG analyses and respecting the laws in force in the nation it is in use ...

Страница 9: ... a valuable instrument in the fields of sport medicine research rehabilitation neurology gnathology and orthopaedics BTS FREEEMG 1000 is supplied with BTS EMG Analyzer an advanced and complete software solution for the analysis of electromyographic signals BTS EMG Analyzer software includes predefined templates for evaluations in the clinical sport medicine and research fields It also integrates a...

Страница 10: ...System contents 7 4 System contents 4 1 Standard components Receiving unit Wireless electromyographic EMG probes Probes charger AC adapter included ...

Страница 11: ...System contents 8 USB extension cable Set of disposable electrodes USB flash drive including receiver unit drivers BTS EMG Analyzer software BTS FREEEMG1000 user manual and BTS EMG Analyzer user manual ...

Страница 12: ...System contents 9 Shoulder strap briefcase keys and cleaning cloth 4 2 Additional components Additional receiving unit USB Hub ...

Страница 13: ...System contents 10 Additional charger s plus bridge cable for the connection with the main charger Footswitch FSW kit FSW wireless probes Connecting cables ...

Страница 14: ...System contents 11 Sensors Charging cables Electrogoniometer EGN kit EGN wireless probes Connecting cables ...

Страница 15: ...ras BTS TRIGGER BOX for the synchronized start of FREEEMG1000 with other external devices supporting TTL inputs outputs BTS I PORT EXPANDER for the synchronized acquisition in EMGAnalyzer of FREEEMG1000 and analog external devices BTS INTEGRA for the synchronized recording in third party devices of EMG signals acquired with FREEEEMG1000 For further information on the Isokinetic kit BTS VIXTA BTS T...

Страница 16: ... USB allows the wireless reception of the signals acquired by the wireless probes Figure 5 1 Figure 5 1 A single receiving unit is able to handle simultaneously 10 different wireless probes selectable among EMG FSW covering up to 4 contact areas each and EGN probes Figure 5 2 Figure 5 2 ...

Страница 17: ...es more than 10 wireless probes two receiving units will be enclosed in the suitcase Both units should be connected to the workstation at all times through the USB hub Figure 5 3 even if only 10 or less probes need to be acquired Figure 5 3 ...

Страница 18: ...he total absence of cables enables a much faster patient preparation drastically reducing the time of each session Figure 6 1 6 1 EMG probes components Each probe consists of a mother electrode and a satellite electrode each equipped with a snap connector The two active electrodes connected via a flexible cable may be positioned at variable distance as needed by the user probes with variable geome...

Страница 19: ...eal time elaborations are needed In the acquisition with data storage mode which is the default acquisition mode the probes solid state memory is used to secure data safety in case of wireless signal loss Using this acquisition mode when the connection with the receiver is stable acquired data are sent and visualized on the workstation in nearly real time When the connection is lost even if it is ...

Страница 20: ...rly about every half a second The probe is acquiring an electromyographic signal When the acquisition is stopped the probe returns into the Connected state If the connection is lost while the probe is in the Capturing mode the acquisition outcome will depend upon the acquisition modality o Acquisition in real time if the connection is reinstated within 4 seconds data continues to be correctly acqu...

Страница 21: ...recharge the probes section of the Charger chapter Error steady white LED or LED with a blinking period of over 3 seconds The probe has entered an error state and needs a reset to resume its normal functioning i e it needs to be turned off and then turned on again 6 4 EMG probes battery status The battery status of the EMG probes can be checked through the BTS EMG Analyzer software By left clickin...

Страница 22: ... on how to recharge the EMG probes see the How to recharge the probes section of the Charger chapter 6 5 How to turn on and off the EMG probes Before using one probe to acquire EMG data the probe needs to be turned on A brief contact with a magnet lasting about half a second can turn on the probe Figure 6 5 The charger integrates a magnet that can be used for turning on and off the EMG probes Figu...

Страница 23: ...r turn off the charger power To turn it off the probe needs to be kept in contact with a magnet for about 3 seconds Then it must be moved away from the magnet If the probe light turns off then the operation was correctly performed Figure 6 6 Another way to turn off the probes is to connect them to the charger and then turn the charger on and immediately off Figure 6 6 3 SECONDS ...

Страница 24: ... type label FSW or EGN which can be found on the left side of the upper face of the probe 1 Probe type label 2 Probe ID label 3 Power label 4 Status LED 5 Serial number Each probe has a univocal serial number located in the back face and an identification label characterized by a colour red or blue and a code letter from A to F On the upper face the POWER label identifies the socket dedicated to t...

Страница 25: ...turing green LED blinks regularly about every half a second The probe is acquiring an electromyographic signal When the acquisition is stopped the probe returns into the Connected state If the connection is lost while the probe is in the Capturing mode the acquisition outcome will depend upon the acquisition modality o Acquisition in real time if the connection is reinstated within 4 seconds data ...

Страница 26: ...information on how to recharge the FSW and EGN probes see the How to recharge the probes section of the Charger chapter 7 1 4 How to turn on and off the FSW and EGN probes The FSW and EGN probes are always turned on when charged and cannot be turned off 7 2 FSW sensors The sensors included in the footswitch kit are expressly designed for motion analysis applications They are mainly used for the de...

Страница 27: ...Two types of electrogoniometers can be provided with BTS FREEEMG 1000 The first kind has a green sliding endblock with a triangular prism shape sensing block and a black fixed endblock with the shape of a rectangular parallelepiped reference block This electrogoniometer will be referred to as the ankle electrogoniometer since it is used to measure the ankle dorsi plantarflexion and inversion evers...

Страница 28: ...lane without detaching from it rotation around the Y axis the information about the angular displacement will be available through the green cable Figure 7 5 Figure 7 5 Otherwise if the two bases lay on the same plane but during the movement the sensing block detaches from the plane rotation around the X axis the information about the angular displacement will be available through the grey cable F...

Страница 29: ...n mind that BTS software products assign the label Flexion Extension to the signal available through cable 1 The label of the corresponding secondary movement i e Inversion Eversion Abduction Adduction Valgus Varus is assigned to cable 2 This convention influences how the electrogoniometer should be positioned on the patient s body For example the electrogoniometer should be positioned on the knee...

Страница 30: ...GN Calibration The EGN sensors should be calibrated at first use and after each 6 12 months of use to always guarantee a good level of accuracy of the measurements To calibrate the probes from the Laboratory menu select EGN Calibration Figure 7 9 Please note that the EGN probe must be turned on before starting the calibration process Figure 7 9 ...

Страница 31: ...be is charged and therefore turned on the State icon at the top right corner of the window will be green and the Start Calibration button will be enabled Channel 1 calibration requires the movement of the sensing block in the horizontal plane Click on Start Calibration to begin the calibration process Figure 7 11 Figure 7 11 ...

Страница 32: ...terrupted before its end the Abort button can be clicked For a proper calibration he sensing block must be in the correct position before the red light turns on and must be kept stable until the end of the 10 seconds recording Figure 7 12 Next another 5 seconds pause marked by the yellow light allows moving the sensing block to a neutral position 0 degrees Once more the sensing block needs to stay...

Страница 33: ...Footswitch and electrogoniometer kits 30 Figure 7 13 90 Figure 7 14 0 ...

Страница 34: ...ivity are displayed When saved these values will be used to ensure an accurate acquisition To save the calibration press on Ok Figure 7 15 Figure 7 15 To complete the calibration of an electrogoniometer both channels needs to be calibrated Therefore select EGN Channel 2 and click the Calibration button Figure 7 16 Figure 7 16 ...

Страница 35: ...ing starts when the red light appears and stops after 10 seconds Time is marked by a countdown timer at the side of the light Figure 7 18 If the calibration process needs to be interrupted before its end the Abort button can be clicked As before for a proper calibration he sensing block must be in the correct position before the red light turns on and must be kept stable until the end of the 10 se...

Страница 36: ...Footswitch and electrogoniometer kits 33 Figure 7 18 90 0 Figure 7 19 ...

Страница 37: ...in the selected position for 10 seconds Figure 7 20 Figure 7 20 At the end of Channel 2 s calibration process once again the calculated angle offset and sensitivity are displayed To save the calibration press on Ok Figure 7 21 At this stage the calibration of the EGN probe has been completed The described procedure must be reiterated for each electrogoniometer which needs to be calibrated Figure 7...

Страница 38: ...3 first verify that the probe is charged and disconnected from the charger Second check the proper blinking of the probe s LED see the FSW and EGN probes status LED subsection within the Footswitch and electrogoniometer kits chapter for further information If the problem persists verify the probe configuration in the Sensor s form within the Emg devices configuration panel see the System ...

Страница 39: ...Footswitch and electrogoniometer kits 36 configuration section of the System use chapter In particular check the correctness of the serial number type and label associated to the probe Figure 7 23 ...

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