ECG, Respiration and SpO2 Transmitter LX-7230 Operation Manual LX-7230N ● ● LX-7230KM Before using this device, read this operation manual thoroughly. Keep this manual near the device for future reference.
CAUTION Federal Law restricts this device to sale by or on the order of a physician. CAUTION Users are advised to periodically contact the FCC or specified frequency coordinator and determine if other or your transmitter frequencies that may cause interference. CAUTION The manufacturers, installers and users of Wireless Medical Telemetry System equipment are cautioned that the operation of this equipment could result in harmful interference to other nearby medical devices.
Thank you for purchasing this product from Fukuda Denshi. Before use, read this operation manual thoroughly for correct handling and operation. Safety Precautions Read the “Safety Precautions” thoroughly before use to ensure correct and safe use of the product. Make sure to follow the precautions indicated below, as these are important messages related to safety. DANGER Failure to follow this message may cause immediate threat of death or serious injury.
Equipment Symbols Refer to the following symbols indicated on the LX-7230 for their meanings. Symbols indicated on the main unit Description Symbol Caution; read the operation manual. Indicates the need to refer to the operation manual before operation. Type CF Applied Part with Defibrillation-Proof Indicates that the degree of protection against electric shock is Type CF Applied Part with defibrillation-proof. Indicates the battery type and direction.
Precautions for Safe Operation of Medical Electrical Equipment Cautions described here are regarding the general instructions for safety use to the patient and the operator. As for cautions about the LX-7230, please refer to the following pages. CAUTION 1. 2. 3. 4. Users should have a thorough knowledge of the operation before using this equipment. Pay attention to the following when installing or storing the equipment.
CAUTION 5. 6. 7. 8. 9. After using the equipment, verify the following items. Make sure to turn off the power of the equipment. When unplugging the cables, do not apply excessive force on the cable and pull from its connector. Clean the accessories and cables, and keep them together in one place. Keep the equipment clean to ensure proper operation for the next use. Make sure to remove the batteries if the equipment is not used for a long time.
Precautions about Magnetic Resonance Imaging (MRI) WARNING Do not operate this equipment in magnetic resonance imaging (MRI) environments. When conducting MRI test, remove the electrodes and sensors connected to the patient (test subject). The local heating caused by the induced electromotive force may cause burn injury to the patient (subject). For details, refer to the operation manual for the MRI testing device.
Precautions about the Pacemaker WARNING Minute ventilation rate-adaptive implantable pacemakers can occasionally interact with certain cardiac monitoring and diagnostic equipment, causing the pacemakers to pace at their maximum programmed rate. The cardiac monitoring and diagnostic equipment may possibly send wrong information. If such event occurs, please disconnect the cardiac monitoring and diagnostic equipment, or follow the procedures described in the operation manual of the pacemaker.
Precautions about Waterproof CAUTION Replace the “Battery Compartment Lid” of the LX-7230 regularly to keep the main unit performance of waterproof. If not regularly replaced, the quality of the lid will deteriorate and cannot keep the waterproof performance. For details about the regular replacement, contact your local Fukuda Denshi service representative. The lid may be damaged from high impact. If the LX-7230 is dropped or is subjected to a high impact, make sure that the lid is not damaged.
Precautions about SpO2 WARNING During SpO2 monitoring, always use the probe (sensor)/relay cable specified by Fukuda Denshi. If any other probe (sensor)/relay cable is used, a high temperature rise of the probe (sensor) may place the patient in danger of burns in the worst case. When the SpO2 probe (sensor) is in a connector-off condition, the SpO2 alarm will not be generated on the receiving monitor. Make sure that the SpO2 probe (sensor)/ relay cable is securely connected.
Precautions about Output Signal WARNING Do not use the output signal of the monitor that receives radio wave signal from the LX-7230 as the trigger signal for IABP, MRI echocardiographic, or defibrillator for the following reasons. It may lead to a delay of operating timing due to the delay time of waveform transmission. A trigger signal unrelated to the heart rate may be generated due to the interfusion of spike noise at weak electric field.
Precautions about Disposing of Equipment, Accessories, or Components CAUTION When disposing of the equipment, accessories, or components, use an industrial waste distributor. Do not dispose of as ordinary waste. Used disposal items (ECG electrodes, etc.) shall be discarded as medical waste. Precautions about Disposing of Battery CAUTION Obey the local municipal rule to dispose the used dry cell battery.
based on destination country’s radio law). When telemetry has already been installed and been used, radio format, frequency, and antenna power are required to be examined to prevent interference. When using telemetry, which requires zone location, the Institution is to set up the zones as an operation unit for each transmitter to prevent electronic interference between telemetry throughout the Institution.
Electromagnetic Compatibility The performance of this device under electromagnetic environment complies with IEC 60601-1-2 (2007). Precautions for Safe Operation under Electromagnetic Influence CAUTION If any sorts of electromagnetic wave, magnetic field, or static electricity exist around the device, noise interference or malfunction of the device may occur. If any unintended malfunction or noise occurs during monitoring, check the magnetic influence and take appropriate countermeasures.
EMC Guidance This equipment complies with IEC 60601-1-2 (2007). However, if portable transmitter or wireless LAN equipment is used extremely nearby, the electromagnetic influence may largely exceed the compliance level and may cause unexpected phenomenon such as noise interference on the waveform, etc. Therefore, this equipment should be used in a location specified by each medical institution.
●Compliance to the Electromagnetic Immunity (1) The LX-7230 is intended for use in the electromagnetic environment specified below. The customer or the user of the LX-7230 should assure that it is used in such an environment. Immunity Test Electrostatic Discharge (ESD) IEC 61000-4-2 Electrical fast transient/burst IEC 61000-4-4 Surge IEC 61000-4-5 Voltage dips, short interruptions and voltage variations on power supply input lines.
●Compliance to the Electromagnetic Immunity (2) The LX-7230 is intended for use in the electromagnetic environment specified below. The customer or the user of the LX-7230 should assure that it is used in such an environment.
●Recommended Separation Distances between Portable and Mobile RF Communications Equipment and the LX-7230 The LX-7230 is intended for use in an environment in which radiated RF disturbances are controlled. The customer or the user of the LX-7230 can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the LX-7230 as recommended below, according to the maximum output power of the communications equipment.
CONTENTS Safety Precautions ..................................................................................... i Precaution from Fukuda Denshi....................................................... i Equipment Symbols .........................................................................ii Precautions for Safe Operation of Medical Electrical Equipment ....iii Non-Explosion Proof .......................................................................
8. Operation ........................................................................................... 57 ■ Changing Setup....................................................................... 57 ■ Restarting the LCD display ...................................................... 62 ■ Pressing the EVENT button..................................................... 62 9. Other Setting Items ............................................................................ 63 ■ Changing the Time Constant ..........
1. General Description The LX-7230 is a radio telemetry transmitter designed to measure the ECG, respiration waveform, SpO2 (arterial oxygen saturation), pulse waveform with two “AA” size (“LR06” size) alkaline batteries. Information such as ECG measurements, respiration waveform, SpO2 measurements, pulse waveform, battery level, and the conditions of the ECG electrodes and SpO2 probe (sensor) are displayed on the LCD of the front panel.
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2. Names of Parts and Their Functions Neck Strap Hole Attaches the neck strap. ECG/RESP Input Connector Connects the ECG lead cable to measure ECG and respiration waveform. Refer to “Safety Precautions” in this manual’s preface. Refer to “Safety Precautions” in this manual’s preface. SpO2 Input Connector Connects the SpO2 probe (sensor)/relay cable. Channel Number Label Indicates transmitter channel number. LCD Displays measurement waveform and transmitter information.
2. Names of Parts and Their Functions Battery Lid Lock Lever Uses to open/lock the battery compartment lid. Battery Compartment Lid This is the lid for the battery compartment. Make sure to close it when the transmitter is operated.
3. Preparation 1) Installing the Batteries The LX-7230 functions with two "AA" size (“LR06” size) alkaline batteries. With new batteries, the LX-7230 is capable of the following operation. LX-7230N: approximately 2.5 days LX-7230KM: approximately 5 days (However, continuous operating time may be shorter than the above mentioned time depending on the application of the SpO2 probe (sensor).) WARNING Unplug the ECG lead cable when the battery compartment lid is opened.
3. Preparation Lift the lock lever to open the battery compartment lid as shown in the left picture. Install new batteries according to the polarity indication inside the battery compartment. Make sure to first Insert the battery into the battery compartment from the minus (-) terminal as shown in the left picture. Hook the lock lever on the projection from the body and press it down until it is horizontal (flat position).
3. Preparation 2) Operating Power Switch Turning the power switch to “ON” Rotate the power switch to the left until it clicks. LCD screen turns ON and measurement starts. Regarding the LCD screen, refer to page 45 (7. Measurement). The screen automatically turns itself OFF after a minute. After the power is turned ON, make sure to check the remaining battery level on the LCD screen. Refer to the following symbol about the remaining battery level.
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4. ECG Monitoring When the transmitter is used without the SpO2 probe (sensor), it will measure only ECG and respiration. CAUTION When using the transmitter with only the ECG lead cable, SpO2 measurements on the receiving monitor shall be turned off to prevent an erroneous alarm. ■ Connecting the ECG Lead Cable and Electrodes The optional ECG lead cables for LX-7230 are as follows. ECG Lead Cables AHA color code: Item No. Applicable Lead CMT-01HTH-0.8DA Limb Lead (1CH) CMT-02HTH-0.
4. ECG Monitoring The relations between the attached electrode positions and lead method are as follows. Attach the electrodes to monitor proper waveform. For 3-electrode lead cable For AHA color code electrode position (No. CMT-01HTH-0.8DA, CMT-01FTH-0.8DA) White (RA) Black (LA) Red (LL) Standard Limb leads Standard Limb leads can be selected from lead I, lead II, or lead III under the setting of the device. Refer to “8. Operation ■Changing Setup ●ECG Display Screen (1) <>” in page 57.
4. ECG Monitoring For 5-electrode (Chest) lead cable For AHA color code electrode position (No. CMT-03HTH-0.8DA, CMT-03FTH0.8DA) White （RA） Green (RL) Black (LA) Brown (V) Red (LL) Standard Limb lead and Chest lead One limb lead and one chest lead (Brown) measurements are available. Standard Limb leads can be selected from lead I, lead II, or lead III under the setting of the device. The chest lead waveform is measured from the chest lead (Brown) positioned on the chest. Refer to “8.
4. ECG Monitoring ■ Attaching the Electrodes CAUTION Always use the same type of electrodes. If different types of electrodes are used at the same time, the difference between the polarization potential from each electrode may interfere with monitoring. CAUTION Do not reuse the disposable electrodes. It is intended for single patent use only. Clean the electrode sites with alcohol wipes or other skin preparation. If necessary, shave the electrode sites to remove excessive hair.
4. ECG Monitoring ■ Connecting the ECG Lead Cable to the LX-7230 Insert the ECG lead cable firmly into the ECG/RESP input connector matching the transmitter’s connector guide and the direction of the notched part on the connector.
4. ECG Monitoring CAUTION There are some cases when pacemaker pulse cannot be detected depending on the pacemaker type, pulse voltage, pulse width, electrode lead type (unipolar, bipolar), electrode placement, or lead method which causes the pacemaker pulse amplitude to decrease and disables pacemaker pulse detection. If signals similar to a pacemaker pulse are present, such as electric blanket noise or excessive AC frequency noise, these may be erroneously detected and displayed as a pacemaker pulse.
5. Respiration Monitoring Follow the preparation of “4.ECG Monitoring” to allow the respiration monitoring. This respiration monitoring is performed with impedance method. The ECG electrodes are also used for detecting the respiration. Each lead cable specifies the electrodes to detect the respiration. For 3-electrode and 5electrode (chest) lead cable, the electrodes to detect the respiration are fixed as follows. Even if lead method is switched, they are no changes.
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6. SpO2 Monitoring When the transmitter is used without the ECG lead cable, it will measure only SpO2. WARNING When the SpO2 probe (sensor) is in a connector-off condition, the SpO2 alarm will not be generated on the receiving monitor. Make sure that the SpO2 probe (sensor)/ relay cable is securely connected. If the SpO2 waveform/numeric data is not displayed, check the patient’s condition and pay attention not to miss the connector-off condition.
6. SpO2 Monitoring (LX-7230N) SpO2 Monitoring (LX-7230N) LX-7230N, which has a built-in Nellcor® SpO2 module, is described in this section. Regarding the LX-7230KM, which has a built-in Konica Minolta® SpO2 module, refer to page 35. < SpO2 Sensors for LX-7230N > The optional SpO2 sensors available for LX-7230N are as follows. The following table shows applicable patient and proper site for each SpO2 sensor. Select the proper one depending on the purpose and intended use.
6. SpO2 Monitoring (LX-7230N) CAUTION SpO2 sensors for LX-7230N cannot be used on the LX-7230KM. SpO2 sensors are not waterproof. Keep away from liquids. Do not pick up the device pulling the sensor or cable part. It may get disconnected from the device and the device may be dropped. A message is displayed when the SpO2 sensor is disconnected from the device. A message is displayed when the device detects that the SpO2 sensor is disconnected from the patient.
6. SpO2 Monitoring (LX-7230N) ■ Applying the OxiMax® MAX-I sensor This Nellcor® adhesive sensor, model MAX-I, is indicated for continuous noninvasive arterial oxygen saturation and pulse rate monitoring and can be reused on the same patient as long as the adhesive tape attaches without slippage. 1. Remove the plastic backing from the MAX-I and locate the two transparent windows on the adhesive side. Windows cover optical components.
6. SpO2 Monitoring (LX-7230N) Reapplication 1. The MAX-I can be reused on the same patient as long as the adhesive tape attaches without slippage. 2. Enclosed adhesive “dots” are provided for reapplication. Place a transparent dot over each window as shown, and then remove the protective paper that covers each dot (Figure (5)). The sensor is now ready to be reapplied to the same patient. For the reapplication, do not remove the previous adhesive dot, but place the enclosed adhesive dot over it.
6. SpO2 Monitoring (LX-7230N) ■ Applying the OxiMax® MAX-P/ MAX-A/ MAX-AL sensor ® This Nellcor adhesive sensor, model MAX-P/ MAX-A/ MAX-AL, is indicated for continuous noninvasive arterial oxygen saturation and pulse rate monitoring and can be reused on the same patient as long as the adhesive tape attaches without slippage. 1. Remove the plastic backing from the MAX-P/MAX-A/MAX-AL and locate the transparent windows (a) on the adhesive side. Windows cover optical components (Figure (1)).
6. SpO2 Monitoring (LX-7230N) CAUTION Precautions for Use of adhesive sensors, MAX-P/MAX-A/MAX-AL Do not reuse the sensor on other patients. This is a sterilized product and it is intended for single patient use only. Circulation distal on the sensor site should be checked routinely. The site must be inspected every 8 hours to ensure adhesion, skin integrity, and correct optical alignment.
6. SpO2 Monitoring (LX-7230N) ■ Applying DURASENSOR® DS-100A This Nellcor® reusable sensor, model DS-100A, is indicated for continuous noninvasive arterial oxygen saturation and pulse rate monitoring for patients weighing greater than 40 kg. The DS-100A is contraindicated for use on active patients or for prolonged use. 1. 2. 3. Place the index finger over the sensor window of the DS-100A with the finger tip against the stop (Figure (1)).
6. SpO2 Monitoring (LX-7230N) CAUTION Precautions for Use of reusable sensors, DS-100A Do not apply the sensor on the thumb or toe. It may cause incorrect measurements. Do not use the sensor for long-term monitoring. Circulation distal on the sensor site should be checked routinely. Reusable sensors must be moved to a new site at least every 4 hours.
6. SpO2 Monitoring (LX-7230N) ■ Applying the OxiMax® MAX-R sensor ® This Nellcor adhesive sensor, model MAX-R, is indicated for continuous noninvasive arterial oxygen saturation and pulse rate monitoring. The MAX-R is designed for use only on the nose. Use this sensor when finger pulsatile flow is inadequate, or monitoring a finger/toe is not possible. 1. 2. 3. 4. 5. 6. Clean the bridge of the patient’s nose with the contents of the enclosed acetone/alcohol ampule to remove skin oils.
6. SpO2 Monitoring (LX-7230N) CAUTION Precautions for Use of adhesive sensor, MAX-R Do not reuse the sensor on other patients. This is a sterilized product and it is intended for single patient use only. Circulation distal on the sensor site should be checked routinely. The site must be inspected every 8 hours to ensure adhesion, skin integrity, and correct sensor site.
6. SpO2 Monitoring (LX-7230N) ■ Applying the OxiMax® MAX-N sensor This Nellcor® adhesive sensor, model MAX-N, is indicated for continuous noninvasive arterial oxygen saturation and pulse rate monitoring and can be reused on the same patient as long as the adhesive tape attaches without slippage. 1. Remove the plastic backing from the MAX-N and locate the two transparent windows on the adhesive side. Windows cover optical components.
6. SpO2 Monitoring (LX-7230N) NOTE If the sensor does not track the pulse reliably, it may be incorrectly positioned - or the sensor site may be excessively wrinkled, or too deeply pigmented or otherwise deeply colored (for example, as a result of externally applied coloring such as dye or pigmented cream) to permit appropriate light transmission. If any of these situations occurs, reposition the sensor in a different location or choose an alternate Nellcor sensor to use on a different site.
6. SpO2 Monitoring (LX-7230N) CAUTION Precautions for Use of adhesive sensor, MAX-N Do not reuse the sensor on other patients. This is a sterilized product and it is intended for single patient use only. Circulation distal on the sensor site should be checked routinely. The site must be inspected every 8 hours to ensure adhesion, skin integrity, and correct optical alignment. If skin integrity changes, move the sensor to another site.
6. SpO2 Monitoring (LX-7230N) ■ Applying the OXIMAX® MAX-FAST sensor This is an adhesive sensor, model MAX-FAST, for continuous noninvasive arterial oxygen saturation and pulse rate monitoring and can be reused on the same patient as long as the adhesive tape attaches without slippage. 1. Clean the sensor site with an alcohol wipe to remove skin oils. See illustration for the recommended site. (Figure (1)) (1) 2. Remove the white paper backing to expose the first of three adhesive ® pads (Figure (2)).
6. SpO2 Monitoring (LX-7230N) 4. If desired, the sensor cable can be secured to the patient’s clothing or other material by using the clip located on the cable. To open, pinch the sides of the clip; release to close (Figure (4)). (4) 5. Connect the OXIMAX® MAX-FAST oximetry sensor into the LX-7230N. Verify proper operation as described in the operation manual.
6. SpO2 Monitoring (LX-7230N) CAUTION Precautions for Use of adhesive sensors, MAX-FAST Do not reuse the sensor on other patients. This is a sterilized product and it is intended for single patient use only. Circulation distal on the sensor site should be checked routinely. The site must be inspected every 12 hours to ensure adhesion, skin integrity, and correct position.
6. SpO2 Monitoring (LX-7230N) ■ Connecting the Nellcor® SpO2 Sensor to the LX-7230N 1 Insert the SpO2 sensor into the SpO2 input connector on the LX-7230N. SpO2 Sensor 2 Attach the sensor lock as shown in the following illustration to prevent the SpO2 sensor to be disconnected.
6. SpO2 Monitoring (LX-7230KM) SpO2 Monitoring (LX-7230KM) LX-7230KM, which has a built-in Konica Minolta® SpO2 module, is described in this section. ® Regarding the LX-7230N, which has a built-in Nellcor SpO2 module, refer to page 18. < SpO2 probes for LX-7230KM > The optional SpO2 probes available for LX-7230KM are as follows. The following table shows applicable patient and proper site for each SpO2 probe. Select the proper one depending on the purpose and intended use.
6. SpO2 Monitor (LX-7230KM) CAUTION SpO2 probes for LX-7230KM cannot be used on the LX-7230N. SpO2 probes and relay cable are not waterproof. Keep away from liquids. Do not apply excessive force on the sensor or relay cable. Otherwise, damage to it may result. Do not pick up the device pulling the probe/relay cable part. It may get disconnected from the device and the device may be dropped. A message is displayed when the SpO2 sensor is disconnected from the device.
6. SpO2 Monitor (LX-7230KM) CAUTION The accuracy of the SpO2 measurement may be influenced by abnormal hemoglobin, such as carbon monoxide hemoglobin (COHb) and methemoglobin (MetHb). It may be also affected by cardiogreen or intravascular dyes. HbCO METHEMOGLOBIN SpO2 1% 5% 10% 1% 5% 10% 50% -0.1% -0.7% -1.5% 0.2% 1.3% 3.2% 70% -0.1% -0.7% -1.5% -0.6% -2.3% -3.2% 90% -0.2% -0.8% -1.6% -1.5% -6.0% -9.6% 100% -0.2% -0.8% -1.7% -1.8% -7.5% -12.
6. SpO2 Monitor (LX-7230KM) ■ Applying Finger Clip Probe (SR-5C) The SR-5C is suitable for middle/long-term measurement, and should be clipped to the fingertip of an adult/ pediatric who is 30kg or above. It should be positioned so that the LED (light source) is at the base of the fingernail, as shown in the figure below. Use the finger mesh cover (FC-M) to secure the probe. Also, use the finger mesh cover to get better measurement if it is exposed to high-intensity light.
6. SpO2 Monitor (LX-7230KM) ■ Applying Spot Check Probe (SP-5C) The SP-5C is suitable for short-term measurement, and should be clipped to a fingertip of an adult/ pediatric who is 30kg and above. It should be positioned so that the LED (light source) is at the base of the fingernail. Light Source Sensor Proper attachment Finger is not sufficiently inserted. Finger is inserted too far.
6. SpO2 Monitor (LX-7230KM) ■ Applying Universal Probe (UD-5C) The UD-5C is suitable for long-term measurement, and can be attached to a fingertip of an adult/ pediatric who is 40kg and above. 1. Fix the probe with tape. Before attaching the probe to a patient, clean the probe using a cloth moistened with sterilizing alcohol. Make sure that the two pads are aligned. Attach the pad with the LED to the base of the fingernail and the sensor pad to the opposite side of the finger. 2. 3.
6. SpO2 Monitor (LX-7230KM) ■ Applying Personal Probe (SD-5C(20) and SD-5C(25)) The SD-5C (20) and SD-5C (25) are disposable probes to prevent infection. The probe should be used for only one patient, and should be replaced after using it for approximately one week. These probes can be attached to a finger of an adult/pediatric (15kg and above), or to the big toe or the root of the big toe of a pediatric/ infant (5 to 15kg) by using bandage tape. 1. 2. 3.
6. SpO2 Monitor (LX-7230KM) WARNING Precautions for Use of Personal Probe (SD-5C(20) and SD-5C(25)) If measurements are taken over a long period of time, change the measuring site every 8 hours (recommended wearing hours) to prevent rash or low-temperature burn. Be especially careful for continuous use on a patient with peripheral circulatory disturbance by changing the measuring site frequently. If the use of adhesive tape causes skin irritation, it should be discontinued.
6. SpO2 Monitor (LX-7230KM) ■ Connect the SpO2 sensor to the Relay Cable (CI-129) Connect the SpO2 probe connector to the SpO2 relay cable (CI-129), as shown in the figure below. Relay Cable CI-129 SpO2 probe ■ Connecting the Relay Cable (CI-129) to the LX-7230KM Connect the relay cable (CI-129) to the SpO2 input connector on the LX7230KM.
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7. Measurement Turn ON the power and the measurement starts. ■ Starting Screen When the power is turned ON, the channel number configured on the LX-7230 is displayed at the top of the LCD. Make sure whether the channel number on the LCD matches the channel number indicated on the label of the LX-7230 and the channel number configured on the receiving monitor. This screen automatically moves onto the next waveform display screen.
7. Measurement ■ Battery Level Check Check the battery level on the waveform display screen. Battery Symbol Remaining Battery Level Full Getting low but still available Nearly empty Replace the battery. A message that prompts the battery check appears on the screen of the receiving monitor.
7. Measurement ■ Waveform Display ●ECG Display Screen (1) ECG1 waveform, heart rate, pacemaker marker, remaining battery level, and electrode check message are displayed. The LCD display will automatically turn itself OFF after 60 seconds if no operation is done. To restart the LCD display, refer to page 62. When the LCD display is active, press the ▽ button to move onto the next waveform display screen. 【Descriptions of the Screen】 The descriptions of contents displayed on the LCD are as follows.
7. Measurement Displays the detection marker when the pacemaker pulse is detected. Indicates the measuring lead. Indicates the ECG waveform size displayed on the LCD. CAUTION The ECG waveform size setting displayed on the LCD does not interact with the one displayed on the screen of the receiving monitor, because the LX-7230 cannot transmit the setting information of the waveform size to the receiving monitor.
7. Measurement ●ECG Display Screen (2) ECG2 waveform, heart rate, pacemaker marker, remaining battery level, and electrode check message are displayed. NOTE If a 3-electrode lead cable is used, this screen will not appear. The LCD display will automatically turn itself OFF after 60 seconds if no operation is done. To restart the LCD display, refer to page 62. When the LCD display is active, press the ▽ button to move onto the next waveform display screen.
7. Measurement Displays the detection marker when the pacemaker pulse is detected. Indicates the measuring lead. Indicates the ECG waveform size displayed on the LCD. CAUTION The ECG waveform size setting displayed on the LCD of the LX-7230 does not interact with the one displayed on the screen of the receiving monitor, because the LX-7230 cannot transmit the setting information of the waveform size to the receiving monitor.
7. Measurement ●Respiration Display Screen Respiration waveform, respiration rate, remaining battery level, and electrode check message are displayed. The LCD display will automatically turn itself OFF after 60 seconds if no operation is done. To restart the LCD display, refer to page 62. When the LCD display is active, press the ▽ button to move onto the next waveform display screen. 【Descriptions of the Screen】 The descriptions of contents displayed on the LCD are as follows.
7. Measurement CAUTION The respiration waveform size setting displayed on the LCD does not interact with the one displayed on the screen of the receiving monitor, because the LX-7230 cannot transmit the setting information of the waveform size to the receiving monitor. If the respiration waveform size displayed on the screen of the receiving monitor is changed, follow the instruction in the operation manual of the receiving monitor.
7. Measurement ●SpO2 Display Screen SpO2 display screen depends on the transmitter LX-7230N or LX-7230KM. For the LX-7230N Pulse wave, pulse rate, SpO2 measurement value, remaining battery level, and probe condition are displayed. The LCD display will automatically turn itself OFF after 60 seconds if no operation is done. To restart the LCD display, refer to page 62. When the LCD display is active, press the ▽ button to move onto the next waveform display screen.
7. Measurement Indicates the remaining battery level. For details of the battery level, refer to page 46. Displays messages such as probe off. For details of messages, refer to page 87. For the LX-7230KM Pulse wave, pulse rate, SpO2 measurement value, remaining battery level, and probe condition are displayed. The LCD display will automatically turn itself OFF after 60 seconds if no operation is done. To restart the LCD display, refer to page 62.
7. Measurement Displays the pulse rate. Displays the level meter of the pulse wave. Indicate the amplitude level of the pulse wave in 8 steps. Indicates the remaining battery level. For details of the battery level, refer to page 46. Displays messages such as probe off. For details of messages, refer to page 87. Indicates “Int” for the SpO2 intermittent measurement mode. For the SpO2 continuous measurement mode, nothing is indicated.
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8. Operation ■ Changing Setup ●ECG Display Screen (1) In the ECG display screen (1), the ECG waveform size and lead displayed on the LCD of the LX-7230 can be changed. 【Setting Method】 How to enter the setup mode: Press and hold the Enter button for 2 seconds in the ECG display screen (1). <> Lead of ECG 1 can be switched when 3-electrode lead cable or 5-electrode (Chest) lead cable is used. Select an appropriate lead by checking the ECG waveform on the LCD.
8. Operation CAUTION The ECG waveform size setting displayed on the LCD of the LX-7230 does not interact with the one displayed on the screen of the receiving monitor, because the LX-7230 cannot transmit the setting information of the waveform size to the receiving monitor. If the ECG waveform size displayed on the screen of the receiving monitor is changed, follow the instruction in the operation manual of the receiving monitor.
8. Operation ●ECG Display Screen (2) In the ECG display screen (2), the ECG waveform size displayed on the LCD of the LX-7230 can be changed. 【Setting Method】 How to enter the setup mode: Press and hold the Enter button for 2 seconds in the ECG display screen (2). << Changing ECG2 Waveform Size on LCD >> The size indication of ECG 2 is highlighted. Pressing the Enter button will sequentially change the size of ECG 2.
8. Operation ●Respiration Display Screen In the respiration display screen, the respiration waveform size displayed on the LCD of the LX-7230 can be changed. 【Setting Method】 How to enter the setup mode: Press and hold the Enter button for 2 seconds in the respiration display screen. << Changing Respiration Waveform Size on LCD>>> The size indication of the respiration is highlighted. Pressing the Enter button will sequentially change the size of respiration.
8. Operation ●SpO2 Display Screen SpO2 display screen depends on the transmitter LX-7230N or LX-7230KM. LX-7230N: LX-7230KM: LX-7230N has no setup item in the SpO2 display screen. LX-7230KM has a setup item to select the SpO2 measurement mode (continuous or intermittent) in the SpO2 display screen. 【Setting Method】 How to enter the setup mode: Press and hold the Enter button for 2 seconds in the SpO2 display screen. <> Indicates the current measurement mode.
8. Operation CAUTION Do not operate the LX-7230 with the setup screen open to prevent the settings to be changed due to an unintended operation. Make sure to press the Return button to terminate the setup screen. The LCD display will automatically turn itself OFF after 60 seconds if the Return button is not pressed. ■ Restarting the LCD display The LCD display will automatically turn itself OFF after 60 seconds if no operation is done.
9. Other Setting Items The following settings are available for the LX-7230 depending on the use and condition of the patient. For details of the settings, contact our service representative. Items Time Constant Detection Sensitivity of Pacemaker Pulse Respiration Detection Signal LCD Contrast Transmitter Channel Group ID Selection 0.4 sec., 0.1 sec. Default 0.4 sec. Backup Yes Low, Mid, High Mid Yes ON, OFF ON Yes 8 Yes 1100 Yes 00 Yes 8 steps One from the following channels.
9. Other Setting Items ■ Changing the Detection Sensitivity of the Pacemaker Pulse The default setting of pacemaker pulse detection sensitivity is “Mid”. The “Mid” setting can detect and reject the following pacemaker pulse specified in ANSI/AAMI EC13 standard. Detection/ Rejection of Pacemaker Pulse: a) Pacemaker Pulse without Over/Undershoot: Capable to reject pulses of pulse width 0.1 to 2ms, amplitude ±2 to ±700mV b) Pacemaker Pulse with Over/Undershoot: Rejection is not possible.
9. Other Setting Items ■ Changing the Respiration Detection Signal ON/OFF The default setting of the respiration detection signal is “ON”. The respiration waveform can be detected when the setting of the respiration detection signal is turned “ON”. WARNING If the LX-7230 is used with minute ventilation rate-adaptive implantable pacemaker, the respiration detection signal may cause the pacemaker to pace at its maximum programmed rate.
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10. Changing the Transmitter Channel and Group ID ■ Changing the Transmitter Channel The LX-7230 is a transmitter of PLL synthesizer type, and its transmitter channel can be programmed. It can be set up with an arbitrary channel among the channels assigned by the Telemetry Laws (according to each country). For details of the setting change, contact your local Fukuda Denshi service representative.
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11. Troubleshooting ■ List of Displayed messages Transmitter (main unit) Message Cause Faulty SpO2 module. Solution Contact your local Fukuda Denshi service representative. Failed to transmit waveform and value. Faulty EEPROM. Failed to initialize CPU. ECG Message Cause Electrode is off. Solution Check the electrode condition. Character string displayed, such as LA, depends on the detached electrode position.
11. Troubleshooting SpO2 (LX-7230N) Message Cause Solution Probe is off. Check the attached condition of the probe. Faulty Probe. Replace the probe with new one. SpO2 is not Check the attached condition measured correctly. of the probe. Cover the probe with an opaque material to cut off the outside light. Due to excessive body motion, SpO2 is not measured correctly 70 Keep the patient still.
11. Troubleshooting SpO2 (LX-7230KM) Message Cause Solution Probe is off. Check the attached condition of the probe. Faulty Probe. Replace the probe with new one. Unspecified probe is connected. Replace the probe with a specified one. SpO2 is not Check the attached condition measured correctly. of the probe. Cover the probe with an opaque material to cut off the outside light. When the pulse rate is less than 30bpm (under the measuring range).
11. Troubleshooting ■ Troubleshooting Make sure of the followings. However, if there is no improvement in the phenomenon, contact your local Fukuda Denshi service representative. Transmitter (main unit) Phenomenon Cause Solution Nothing is displayed No battery or wrong Install the battery correctly. on the LCD when the polarity power switch is turned Battery level is Replace the battery with a ON. empty. new one. Nothing is displayed on the receiving monitor screen.
11. Troubleshooting ECG Phenomenon Cause “ELECTRODE?” Lead cable is off. message is displayed. Solution Check the connection between the lead cable and the LX-7230. Check the connection between the lead cable and the electrode. Faulty Lead cable. Replace the ECG cable with a new one. Electrode is peeling Replace the electrode with a off. new one. Polarization potential of the electrode is too high. ECG waveform contains noise Respiration waveform cannot be measured.
11. Troubleshooting SpO2 Phenomenon SpO2 value is unstable. Cause The probe size is improper. Solution Use a probe, which fit properly. The probe is Attach the probe properly peeling off or is following the instruction. affected by the outside light due to the poor condition Transmitting and measuring LEDs sensor are dirty. Clean both LED sensors from dirt.
12. Cleaning and Disinfection The Cleaning and disinfection of the LX-7230, ECG lead cable, and SpO2 probe (sensor) shall be performed as follows. CAUTION Do not sterilize the LX-7230, ECG lead cable, and SpO2 probe (sensor) in any manners, such as radioactive rays, steam, or ethylene oxide. ■ Cleaning Clean the LX-7230 using a squeezed gauze or an absorbent cotton cloth dampened with alcohol or a neutral cleanser. CAUTION Clean the equipment frequently so stains can be removed easily.
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13. Maintenance and Inspection This section explains the daily checks and periodic checks of the LX-7230. To ensure safety, reliability, and high performance, a “Daily Check” and “Periodic Check” must be performed. We are not liable for any accident arising from lack of maintenance. CAUTION Do not open the housing or attempt service. The service should be done by Fukuda Denshi or Fukuda Denshi’s representative.
13. Maintenance and Inspection Daily Check List No. Inspected Date Inspected by Location Device Type S/No. Date of Purchase LX-7230N/KM Items Appearance Battery Compartment Details Visually check for any damage, cracks, chip, peeled label, and loosen screw on the housing. Visually check for the ring condition of the battery compartment lid. Visually check for the contact springs, inside the LX-7230, to the battery and the lock lever of the battery compartment lid.
14. Standard and Optional Accessories This section lists the accessories for the LX-7230. WARNING Use only the accessories, such as ECG Lead cable and SpO2 probe (sensor)/ relay cable, specified by Fukuda Denshi for the LX-7230. Otherwise, the LX-7230 cannot deliver its maximum performance and may be damaged, resulting in a safety hazard. CAUTION For quality improvement, specifications are subject to change without prior notice. ■ Standard Accessories No.
14. Standard and Optional Accessories ■Optional Accessories The following accessories are available as optional for the LX-7230. Purchase them as required. ●ECG, Impedance Respiration Measurement (For LX-7230N and LX-7230KM) AHA color code: Item 80 Model Type ECG Hook Type Lead Cable CMT-01HTH-0.8DA ECG Hook Type Lead Cable CMT-02HTH-0.8DA ECG Hook Type Lead Cable CMT-03HTH-0.8DA ECG Clip Type Lead Cable CMT-01FTH-0.8DA ECG Clip Type Lead Cable CMT-02FTH-0.
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15. Specification ■ Specification CAUTION For quality improvement, specifications are subject to change without prior notice. Standard Specification Size: 72.0(W) x 98.0(H) x 24.
15. Specification Time Constant 0.4 sec ±25% Switching and available to set 0.1 sec ±25% Comply with ANSI/AAMI EC13 Pacemaker pulse rejection capability Meet the requirement of IEC60601-2-27 Pacemaker Pulse Detection/ Rejection: Protection to Defibrillation: Respiration (Impedance Method) Accuracy of Sensitivity: 10mm/1Ω ±2mm (When standard Impedance is 480Ω.
15. Specification LX-7230KM SpO2 Measurement Range: Resolution: Measurement Accuracy: Measurement Spot 0 to 100% 1% Accuracy of measurement with SpO2 probe is as follows. Measurement Accuracy (±1SD) ±2% Finger Big toe or the root ±3% of the big toe (When SpO2 is 70 to 100%. Less than 70% is not specified.) Wavelength: 658 to 665nm (Red light), 860 to 925nm (infrared light) Power Loss on Probe: 2.
15. Specification Transmission Method Modulation Mode: Frequency: Oscillation Method: Channel Spacing: Occupied Frequency Bandwidth: RF output power: Transmitting Antenna: Digital, Frequency shift keying 608 to 614MHz PLL Synthesizer method by crystal control 12.5kHz 8.
15. Specification ■ Displays The following displays are shown on the LCD of the LX-7230. Display Description Starting Screen Displays after turning on the power. Automatically moves onto the channel display screen. Channel Display Screen Displays the transmitter channel after turning on the power and also when refreshing the screen. Automatically move onto the waveform display screen. EVENT Displays when the EVENT button is pressed. Automatically move onto the channel display screen.
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15. Specification ■ Details of the “ELECTRODE?” Message The following “ELECTRODE?” messages are displayed on the LCD depending on the selected lead cable and lead.
15. Specification ■ List of Setup Items This section lists the available selection, default setting, and backup status for each setup item, which is available for the LX-7230.
39-4, Hongo 3-chome, Bunkyo-ku, Tokyo, Japan Phone:+81-3-3815-2121 Fax:+81-3-3814-1222 Printed in Japan 4L0105700 20100805(01)
