BCUTE Technical Description for Digital Pulse Oximeter Module
Contents
1. Os rto o S LL a 1 u gu lc rae Ies c L6 1 MENS NEM ae MENU NL ee ee XN EE S MERE M NEN XC aes EOM E S L ed qeu ucc FEET ey PENNE PET L pau eet Beijing Biotester Ltd Room 1007 Jade Apartment A38 Fuxing Road Beijing 100039 China Tel 8610 88204231 Fax 8610 88204232 Email info biotester com Website www biotester com Technical Description BCUTE Digital Pulse Oximettry Module BCUTE A1 Revision Level Packet Protocol Byte Byte Byte Byte Byte Pe eS 0x80 128 OxFF 255 0x44 V One s value in ASCII i e if revision 1 1 0x31 Decimal value in ASCH Beijing Biotester Ltd Room 1007 Jade Apartment A38 Fuxing Road Beijing 100039 China Tel 8610 88204231 Fax 8610 88204232 Email info biotester com Website www biotester com Technical Description BCUTE Digital Pulse Oximettry Module BCUTE A1 4 2 3 Oximeter Received Data Protocol The host system can send single character commands to the Oximeter to change the averaging values synchronize the Plethysmogram scale and offset and force the Oximeter to send the software revision level ASCII Description A Synchronizes the Plethysmogram scale and offset to the next sample Subsequent offset adjustments will also occur when the Plethysmogram value exceeds the range 0 99 The E Plethysmogram scale and offset are automatically adjusted every 256 samples Sets SpO2 to 4 beat average and pulse rate to an 8 second avera2. BPM increments Accuracy greater of 2 BPM or 2 Bargraph HT Plethysmogram 0 100 auto gained for highest resolution 8 bit Pulse Beep Flags No Finger in Sensor Sensor Unplugged Searching for Pulse Searching too long Low Pulse Artifact Software Revision Dx x format transmitted upon request Serial Communication TTL voltage levels Logic Levels Data Provided From the Host System 76 SpO Averaging Value 4 8 or 16 beat averaging default 8 beat Pulse Rate Averaging Value 8 or 16 second averaging default 8 second Plethysmogram scale and offset Synchronized by Host and or Performed Automatically Request for software revision Request for revision level Dx x in a 6 byte format Beijing Biotester Ltd Room 1007 Jade Apartment A38 Fuxing Road Beijing 100039 China Tel 8610 88204231 Fax 8610 88204232 Email info biotester com Website www biotester com Technical Description BCUTE Digital Pulse Oximettry Module BCUTE A1 Power Requirements Power Supply Input Voltage typical 3 3 6 VDC Digital 8 11mA electrically isolated Dimensions Width 1 1 inches 2 8 cm Height 0 35 inches 0 85 cm 1 0 inches 2 5 cm 4 Serial Communications Specifications The PXCO9299 A Pulse Oximeter module communicates with the host computer through a single high speed asynchronous serial channel at TTL voltage levels Data provided to the host includes 6SpO Pulse Rate Signal Strength Barg
3. BCUTE Technical Description for Digital Pulse Oximeter Module BCUTE A1 Pre Release V1 1 Technical Description BCUTE Digital Pulse Oximettry Module BCUTE A1 Table of Contents Page Warnings Cautions amp INGLES epp eni gea era aqaa evi Suas 1 T Product Description iiia ciii trt abe det dva dae 2 2 Theory of Operation ce doe efie teduiitetee Cheetah ae tantis 3 3 Product Specifications n piov SIRE re REPOS MER IX RSS COR PRAES 4 4 Serial Communications Specifications seee 5 4 1 Communication Protocol sese 6 4 2 Serial Communication Notes essen 7 4 2 1 Oximeter Transmitted Data esee 8 4 2 3 Oximeter Received Data s oesieoe ip deoe d e edi niue ipn ies 9 5 Pm Description ie ced ee ace Y AR EO E EU ELA SERERE GUN NIE 10 6 Checking Pulse Oximeter Performance csssecccceeeeeeeeettneeeeeeees 11 7 Demonstration SOUWAle ene dee I Ere E ES CR EE ends WT ER gue ERR an 12 Beijing Biotester Ltd Room 1007 Jade Apartment A38 Fuxing Road Beijing 100039 China Tel 8610 88204231 Fax 8610 88204232 Email info biotester com Website www biotester com Technical Description BCUTE Digital Pulse Oximettry Module BCUTE A1 Warnings Cautions amp Notes KEYWORD DEFINITION WARNING Tells you about something that could hurt the patient or hurt the operator CAUTION Tells you something that could damage the monitor NOTE Tells yo
4. PXCO9299 A Pulse Oximeter module has a compact size of 1 1 inches wide by 1 0 inches depth by 0 35 inch high 2 Theory of Operation The Oximeter determines SpO and pulse rate by passing two wavelengths of light one red 660nm 2 0mW and one infrared 905nm 2 0 2 4mW through body tissue to a photodetector During measurement the signal strength resulting from each light source depends on the color and thickness of the body tissue the sensor placement the intensity of the light sources and the absorption of the arterial and venous blood including the time varying effects of the pulse in the body tissues The Oximeter processes these signals separating the time invariant parameters tissue thickness skin color light intensity and venous blood from the time variant parameters arterial volume and 96SpO to identify the pulse rate and calculate oxygen saturation Oxygen saturation calculations can be performed because oxygen saturated blood predictably absorbs less red light than oxygen depleted blood Beijing Biotester Ltd Room 1007 Jade Apartment A38 Fuxing Road Beijing 100039 China Tel 8610 88204231 Fax 8610 88204232 Email info biotester com Website www biotester com Technical Description BCUTE Digital Pulse Oximettry Module BCUTE A1 3 Product Specifications Data Provided to the Host System Range 0 100 Functional SpO 1 increments Accuracy 2 96 at 70 100 SpO Pulse Rate Range 30 254 BPM 1
5. c9 C8 A Poe Ri PULSOXIMETRY MODULE 4 34 p SENSOR CONNECTOR 100R O 1uF 100uF VB1 i PXCO9299 5 n c only for in circuit test 2 9 o i r 3 TOP SIDE 1 4 A GND n c only for in circuit test 4 2 x 8 s 3 1 3 9 6 4 TQ o 7 5 2 8 6 6 o B x o SUB D 9 A GND DAC Analog Output optional Reset 45V DIG C ui 1 16 ca Ci VCC a 06 57 Taur 4 T tow Tr aoe gt 2 i PC RS232 V lt 7 v VB2 C4 C2 E p D GND 5 o 1OuF x 9 o 10uF ano 18 S 4 Ls E 2 o s SZ D GND 3L xD 11 14 x37 TIIN T1OUT ee 10 7 QUEE s HD X T2IN T20UT X x r9 12 RioUT RiN H SUB D 9 x H ReoUT Rain 5 x MAX232 Beijing Biotester Ltd Room 1007 Jade Apartment A38 Fuxing Road Beijing 100039 China Tel 8610 88204231 Fax 8610 88204232 Email info biotester com Website www biotester com
6. ge C Sets SpO2 to 8 beat average and pulse rate to an 8 second average default Sets SpO2 to 16 beat average and pulse rate to a 16 second average Forces Oximeter to send software revision level Dx x in a 5 byte format Byte 1 80H Byte 2 FFH Byte 3 V for digital ASCII Byte 4 Ones digit ASCII Byte 5 Tenths digit ASCII Switch onboard 8 Bit DAC on off 5 Pin Description J1 Power and Communication Connector Description PULS LED optional for 4800BD connect to 3 3V OR for 38400BD connect to GND RESET low active optional n c only for in circuit test DAC Analog OUT 6 TxD TIL Level RxD TTL Level 8 GND pe VCC 3 3 V Beijing Biotester Ltd Room 1007 Jade Apartment A38 Fuxing Road Beijing 100039 China Tel 8610 88204231 Fax 8610 88204232 Email info biotester com Website www biotester com Technical Description BCUTE Digital Pulse Oximettry Module BCUTE A1 J2 Oximeter Sensor Connector Sensor Cable DB9 Pin go 8 Checking Pulse Oximeter Performance Pulse Oximeters do not require user calibration To check the function of the device an optional Oximeter Simulator is available as an accessory Index 2PFE Smart Sat The simulator attaches to the Oximeter in place of the sensor or patient cable It provides a known SpO2 and pulse rate signal to the Oximeter allowing the Oximeter s performance to be checked Follow the instructions included with the Oximeter Simu
7. lator Beijing Biotester Ltd Room 1007 Jade Apartment A38 Fuxing Road Beijing 100039 China Tel 8610 88204231 Fax 8610 88204232 Email info biotester com Website www biotester com Technical Description BCUTE Digital Pulse Oximettry Module BCUTE A1 9 Demonstration Software The PC software is for demonstration purposes only The intent is to allow the OEM customer to quickly become familiar with the operation of the Oximeter module This software is NOT to be used in any product for sale This circuit shown below for interface to a PC for demonstration purposes is for evaluation only and is to be used with a 7c SPO2 simulator Do not connect directly to a patient without proper patient isolation Demonstration Software PXCO9299 PXCO9299 EXE The PXCO9299 A1 Oximeter module can be connected to your PC through a custom power communication interface board A sample schematic which could be used for the PC interface is shown below Beijing Biotester Ltd Room 1007 Jade Apartment A38 Fuxing Road Beijing 100039 China Tel 8610 88204231 Fax 8610 88204232 Email info biotester com Website www biotester com Technical Description BCUTE Digital Pulse Oximettry Module BCUTE A1 43 3 V ANALOG
8. n level If the Master has not received revision information yet from previous E command the next E command will be lost Revision level response interrupts normal data stream at any place It is assumed that E command will be sent once during power up hence no significant amount of data will be lost e When data packets are sent from the Oximeter to the Host there may be times when there is invalid data for example when finger is removed from sensor Invalid data can be interpreted as invalid Rate 2 OxFF invalid SpO2 Ox7F invalid Pleth 2 Ox7F invalid Signal Strength 2 OxF 4 2 1 Oximeter Transmitted Data Protocol Data is transmitted from the Oximeter module to the Host in 5 byte packets Byte Bit Description 0 O Signal StrengthO 1 Signal Strength 2 Signal Strength2 3 Signal Strength 4 jlesearhingtoolog e 1 sensor unplugged 6 jlepusebep 0 PT 7 lGymbi 0 0 0 0 1 O PlethysmogramO por TA Plethysmogram 1 2 Plethysmogram2 _ _ 3 Plethysmogram3 4 Plethysmogram4 6 Plethysmogram6 0 BargraphO 0 0 0 4 1 no finger in sensor or sensor unplugged 1 searching for pulse 6 Rate 7 see byte 4 0 sync bit Byte Bit 3 Description 7 OGyn bi 4 7__ O syne bit Pp
9. raph Plethysmogram and Status Bits data The host can send commands to control the averaging rates enable disable the auto synchronization of the Plethysmogram Waveform request the Oximeter software revision level setup the Baudrate setup the sampling rate 4 1 Communication Protocol There are 2 protocols available on the PXCO9299 A Pulse Oximeter module which also support the BCI Communications Protocol Serial Port Settings Bytes per Packets Baud Parity Data Stop Packet Per Sec Protocol 1 4800 60 default Protocol 2 38400 360 selectable Communication Protocol Data is transmitted from the Oximeter module with Protocol 1 to the host at a rate of 60 packages per second Data is formatted in 5 byte packets Data packages transmitted from the Oximeter to the host can be synchronized by using bit 7 The communication settings are 4800 Baud One Start Bit Eight Data Bits Odd Parity One Stop Bit default 4 20 Serial Communication Notes Protocol 1 Protocol 2 Start up averaging is Beijing Biotester Ltd Room 1007 Jade Apartment A38 Fuxing Road Beijing 100039 China Tel 8610 88204231 Fax 8610 88204232 Email info biotester com Website www biotester com Technical Description BCUTE SpO2 8 pulses HR 8 seconds Digital Pulse Oximettry Module BCUTE A1 e Commands can be sent any time asynchronously with the output data e Commands can be sent back to back except E after E send revisio
10. t the system complies with the requirements of the system standard IEC 601 1 1 Cautions CAUTION Do not autoclave ethylene oxide sterilize or immerse the sensors in liquid CAUTION This device is intended for use by persons trained in professional health care The operator must be thoroughly familiar with the information in this manual before using the device 1 Microfoam is a registered trademark of the 3M Company Beijing Biotester Ltd Room 1007 Jade Apartment A38 Fuxing Road Beijing 100039 China Tel 8610 88204231 Fax 8610 88204232 Email info biotester com Website www biotester com Technical Description BCUTE Digital Pulse Oximettry Module BCUTE A1 Notes NOTE Operation of this device may be adversely affected in the presence of strong electromagnetic Sources such as electrosurgery equipment NOTE Operation of this device may be adversely affected in the presence of computed tomograph CT equipment NOTE Use only SpO sensors supplied with or specifically intended for use with this device NOTE SpO measurements may be adversely affected in the presence of high ambient light Shield the sensor area with a surgical towel for example if necessary NOTE Dyes introduced into the bloodstream such as methylene blue indocyanine green indigo carmine and fluorescein may adversely affect the accuracy of the SpOo reading NOTE Any condition that restricts blood flow such as use of a blood pressure c
11. u other important information Warnings WARNING Do not use this device in the presence of flammable anesthetics WARNING Do not use this device in the presence of magnetic resonance imaging MR or MRI equipment WARNING This device must be used in conjunction with clinical signs and symptoms This device is only intended to be an adjunct in patient assessment WARNING Prolonged use or the patient s condition may require changing the sensor site periodically Change sensor site and check skin integrity circulatory status and correct alignment at least every 4 hours WARNING When attaching sensors with Microfoam tape do not stretch the tape or attach the tape too tightly Tape applied too tightly may cause inaccurate readings and blisters on the patient s skin lack of skin respiration not heat causes the blisters WARNING When connecting this monitor to any instrument verify proper operation before clinical use Refer to the instrument s user manual for full instructions Accessory equipment connected to the monitor s data interface must be certified according to the respective IEC standards i e IEC 950 for data processing equipment or IEC 601 1 for electromedical equipment All combinations of equipment must be in compliance with IEC 601 1 1 systems requirements Anyone connecting additional equipment to the signal input port or the signal output port configures a medical system and therefore is responsible tha
12. uff or extremes in Systemic vascular resistance may cause an inability to determine accurate pulse rate and SpO readings NOTE Remove fingernail polish or false fingernails before applying SpO2 sensors Fingernail polish or false fingernails may cause inaccurate SpO readings NOTE SpO averaging is the number of pulse beats over which the SpO value is averaged pulse averaging is the number of seconds over which the pulse value is averaged NOTE Hazards arising from software errors have been minimized Hazard analysis was performed to meet EN1441 1997 NOTE Significant levels of dysfunctional hemoglogins such as carboxyhemoglogin or methhemoglobin will affect the accuracy of the SpO measurement Beijing Biotester Ltd Room 1007 Jade Apartment A38 Fuxing Road Beijing 100039 China Tel 8610 88204231 Fax 8610 88204232 Email info biotester com Website www biotester com Technical Description BCUTE Digital Pulse Oximettry Module BCUTE A1 1 Product Description The PXCO9299 A Pulse Oximeter module enables easy OEM integration for fast reliable SpO2 and Pulse Rate measurements on any patient from neonates to adults Serial communication at 4800 Baud provides the host system with 6SpO Pulse Rate Signal Strength Bargraph Plethysmogram and Status Bits data The host system can send commands to control the averaging rates synchronize the Plethysmogram waveform and request the Oximeter software revision level The
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