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Human NIBP Nano

Owner’s Guide

Contents i

Safety Notes

1

1 Overview

7

Checking Human NIBP Nano components . . . . . . . . . . . . . . . . . . . . . . . . 8
The Human NIBP Nano Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

The Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
The Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2 Using the System

11

Install ADInstruments Soft ware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Check the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
The Height Correction Unit (HCU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Using Finger Cuff s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Warnings on cuff handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Starting up the soft ware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Human NIBP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Auto calibration enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Finger cuff switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Performing the Height Correction Procedure . . . . . . . . . . . . . . . . . . . . . 28
Starting a measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Stopping a measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Use of Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Use of Cyclic Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Pressure check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

A Technical Details

41

How it Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Photoplethysmography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Plethysmograph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

The pressure-diameter relationship . . . . . . . . . . . . . . . . . . . . . 44

Contents

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Summary of Contents for Human NIBP Nano

Page 1: ...Human NIBP Nano Owner s Guide Human NIBP Nano Owner s Guide Non invasive hemodynamics ...

Page 2: ...Human NIBP Nano Owner s Guide ...

Page 3: ...pplication programs and LabTutor Online are trademarks of ADInstruments Pty Ltd Other Trademarks Apple Mac and Macintosh are registered trademarks of Apple Computer Inc Windows Windows 7 and Windows Vista are either registered trademarks or trademarks of Microsoft Corporation All other trademarks are the property of their respective owners Product Human NIBP Nano Part Number for this document 6282...

Page 4: ...n Unit HCU 16 Using Finger Cuffs 18 Warnings on cuff handling 18 Starting up the software 23 Human NIBP Settings 25 Auto calibration enabled 25 Finger cuff switching 26 Performing the Height Correction Procedure 28 Starting a measurement 29 Stopping a measurement 31 Use of Comments 31 Use of Cyclic Measurements 32 Troubleshooting 36 Pressure check 38 A Technical Details 41 How it Works 41 Photople...

Page 5: ... volume 52 Measurement accuracy 52 Comparison with intra arterial blood pressure 53 Recommended use 57 Maintenance and Cleaning of the Nano Core wrist unit 58 Maintenance 58 Cleaning 58 B References 61 C Speciﬁcations 64 D Warranty 72 Product Purchase and License Agreement 72 Software License Agreement 77 ...

Page 6: ...used to diagnose treat or monitor a subject Furthermore no product is intended for the prevention curing or alleviation of disease injury or handicap Where a product meets IEC60601 1 it is under the principle that it is a more rigorous standard than other standards that could be chosen it provides a high safety level for subjects and operators The choice to meet IEC60601 1 is in no way to be inter...

Page 7: ...c shock over B rated applied parts Warning symbol The exclamation mark inside a triangle means that the supplied documentation must be consulted for operating cautionary or safety information before using the device CE Mark All front end amplifiers and PowerLab systems carry the CE mark and meet the appropriate EU directives Further information is available on request Refer to booklet symbol This ...

Page 8: ...mpromise the inherent safety measures designed into the Human NIBP Nano System The following guidelines are based on principles outlined in the international safety standard IEC60601 1 1 General requirements for safety Collateral standard Safety requirements for medical systems Reference to this standard is required when setting up a system for human connection The Human NIBP Nano system requires ...

Page 9: ...e manufacturer s specified range or the isolation barrier may be compromised An explosion hazard exists when operated in the presence of flammable gases and liquids The entry of liquids into equipment may also compromise the isolation barrier If spillage occurs the manufacturer of the affected equipment should be contacted before using the equipment Do not allow water to enter the device or finger...

Page 10: ...mponents are maintenance free and do not require periodic inspection to ensure safe operation There is no need to open any of the device s components for inspection or maintenance and doing so within the warranty period will void the warranty The zero adjustment of all built in pressure transducers is automatic except for the pressure transducer in the Height Correction Unit for which zeroing has ...

Page 11: ...onditions below and should be placed apart from other equipment for optimal operation Transport Storage Conditions Temperature in the range 0 40 C Non condensing humidity in the range 15 95 Operating Conditions Temperature in the range 0 35 C Non condensing humidity in the range 15 90 Disposal Forward to recycling center or return to manufacturer Unwanted equipment bearing the Waste Electrical and...

Page 12: ... Unit FMS910804 Height Correction Unit HCU FMS903903 Human NIBP Nano Interface MLA382 LabChart Pro and the Human NIBP device enabler Two Finger cuffs which are available in three sizes and are purchased separately Small for finger circumferences 45 55 mm MLT382 S Medium for finger circumferences 55 65 mm MLT382 M Large for finger circumferences 65 75 mm MLT382 L The Human NIBP Nano Wrist Unit is m...

Page 13: ...ntact your ADInstruments distributor immediately The Human NIBP Nano Interface The Human NIBP Nano interface contains the power supply and necessary circuitry to interface the Human NIBP Nano Wrist Unit to a PC and supply it with power The Front Panel Human NIBP Nano Interface Input Status Status Indicator Redel Connector Wrist Unit Connector This port provides the main connection for the Wrist Un...

Page 14: ...ch connects to a computer with USB ports Your Human NIBP Nano system is supplied with a Type A to Type B USB cable For proper use and reliable results the Human NIBP Nano system needs a high speed USB connection In practical terms this means cables between any USB devices must be no more than 5 meters 16 feet in length If you replace the USB cable buy a high speed cable fully shielded twisted pair...

Page 15: ...ld be powered on and off using the On Off switch on the back panel of the Human NIBP Nano Interface unit Shutdown Procedure The Human NIBP Nano system should be shut down as follows 1 Stop sampling 2 Remove finger cuffs and wrist unit 3 Close LabChart 4 Power off the interface unit WARNING Do not position de vice so as to make it difficult to operate the disconnection device when an appliance coup...

Page 16: ... with High Frequency surgery devices The Human NIBP Nano system is a finger blood pressure monitor Never use the finger cuffs on other parts of the body The Human NIBP Nano system should only be used in persons aged over 18 years To maintain operator and subject safety only use accessories such as finger cuffs provided by ADInstruments or Finapres Medical Systems B V Only parts approved by ADInstr...

Page 17: ...ned to support the connection of a single Human NIBP Nano unit at any one time Diseases or environmental conditions that result in reduced finger arterial compliance diabetes Raynaud disease cold fingers which causes reduced volumetric pulsations in the fingers may lead to an inability to measure blood pressure or derived variables This will be detected by the device which will report an error All...

Page 18: ...he Human NIBP Device Enabler Place the CD for the ADInstruments Human NIBP Device Enabler in the CD drive of your computer The installer should auto run Follow the on screen instructions Alternatively download the Device Enabler via LabChart Feature Manager From the Feature Manager you can also optionally download the Non Invasive Cardiac Output NICO extension for LabChart This extension can be us...

Page 19: ...P Nano Interface device If a dialog like the one shown on the left of Figure 2 2 appears click Device Scan to repeat the device discovery process Once the Human NIBP Nano Interface is found click OK to launch LabChart If this dialog persists check that the Human NIBP Nano Interface is connected to your computer and powered on See Troubleshooting for further information Open a new document such as ...

Page 20: ... proceeding to make a finger blood pressure measurement If you are already familiar with the hardware please proceed to Starting up the software on page 23 The Human NIBP Wrist Unit The Wrist Unit Figure 2 4 contains an air pressure control valve a pressure transducer electronics for the infrared photoplethysmograph in the finger cuff and electronics for the Height Correction Unit HCU The Wrist Un...

Page 21: ...Height Correction Unit HCU The Height Correction Unit consists of a liquid filled tube connected at one end to a pressure transducer called the HCU transducer Figure 2 5 The other end is closed with a very pliable plastic bag contained in a small cylindrical housing hereafter called the Reference end During a measurement the HCU transducer should be placed at the measured finger and the Reference ...

Page 22: ...17 Human NIBP Nano Owner s Guide HCUTransducer toﬁngercuff Referenceend toheartlevel Connector to WristUnit Figure 2 5 Attaching the HCU to the Wrist unit top and components of the HCU bottom ...

Page 23: ...nt the following notes to prevent finger cuff damage Don t apply air pressure to a finger cuff when it is not wrapped around a finger or any other solid object This will damage the finger cuff Don t bend finger cuffs outwards into a flat shape since this may damage the bonding and the electrical shielding Finger cuffs are preformed around a conical mandrel during manufacturing Figure 2 6 Final pla...

Page 24: ...an NIBP Nano Interface automatically takes pressure away when the finger cuff is unwrapped The Finger Cuff The main components of the finger cuff are an inflatable air bladder and a plethysmograph consisting of a light source and a light detector The light source is a LED Light Emitting Diode emitting infrared light The light detector is an infrared photodiode Figure 2 7 The air bladder is connect...

Page 25: ...overlap Bladder touch good friction area small friction area Wrapping the cuff correctly A finger cuff should be wrapped around the middle phalanx of a finger Best results are obtained on the middle finger and the ring finger although the index finger can be used almost equally well Finger cuffs are not designed for application to the thumb Only apply a finger cuff to the thumb when it is impossib...

Page 26: ...4 on page 15 7 Repeat steps 1 to 6 for a second finger Connecting the Finger Cuffs to the Wrist Unit 1 A cuff cable connector and an air hose connector connect each finger cuff to the Wrist Unit It is easier to connect these after the finger cuff has been applied to the finger 2 The Wrist Unit has attachment points for two finger cuffs C1 and C2 which permits finger cuff switching for longer durat...

Page 27: ...rontofthe arteries bone LED photodiode arteries Finger cross section CORRECT CUFF WRAPPING Wrong Cuff is shifted proximally Wrong Cuff is rotated Theconicalshape ofthecuffdoes notmatchthe ﬁnger Themiddlephalanx isthepreferred position Figure 2 10 Cuff wrapping instructions 1 Point cable and tube towards wrist 2 Center cuff between joints 3 Center LED and photodiode symmetrically 4 Wrap cuff tightl...

Page 28: ...e heart rate and interbeat interval are beat to beat signals derived from this pressure waveform HCU Pressure This is the pressure signal detected by the Height Correction Unit pressure transducer The height signal is low pass filtered and added to the Finger Pressure signal in Input 1 Thus slow changes in blood pressure due to hydrostatic effects are compensated However fast movements of the meas...

Page 29: ...terval particularly at short intervals Note If the pressure wave is not available such as when an AutoCal is performed detection is switched to the plethysmographic pulse wave Hence heart rate and interbeat interval are available during an AutoCal However during finger cuff switching no sensible data is recorded and a zero value is returned The calculated data Systolic Mean Arterial Diastolic Hear...

Page 30: ...tdown of the number of heart beats until the next AutoCal is performed Human NIBP Settings This section describes the options available in the Human NIBP Settings dialog Go to Setup NIBP Settings to open this dialog Auto calibration enabled Auto calibration is based on a patented model for blood pressure calibration see details of the PhysioCal algorithm on page 48 Auto calibration or AutoCal is o...

Page 31: ...ng Finger switching can only be configured in LabChart when the Human NIBP Nano Interface is powered on and attached to your computer Once you have started a blood pressure measurement it is not possible to initiate or delay a finger switching procedure To disable finger cuff switching select a specific cuff either Cuff one C1 or Cuff two C2 If finger cuff switching is enabled two finger cuffs mus...

Page 32: ...byafingerswitchingprocedure Also to avoid analysis problems due to pressure differences between fingers it is recommended to use the same finger in measurements of up to one hour see following section Note The Human NIBP Nano System should be configured to switch finger cuffs at regular intervals when measuring for longer periods 2 hours without interruption Relationship between ﬁnger arterial pre...

Page 33: ...er cuff using the Velcro provided and the Reference end attached at heart level Once zeroed the HCU pressure is negative if the hand is below heart level and positive if the hand is above heart level This offset is stored in volatile memory and will no longer be available if the Human NIBP Nano Interface is powered off The same holds true if the HCU is disconnected and later reconnected or if LabC...

Page 34: ...ng session If you stop recording for any reason simply click Start to resume a measurement Pressure staircase at the start of a measurement During the start up phase of a finger blood pressure measurement the cuff pressure is increased stepwise while analyzing the plethysmogram Based on the amplitude and shape of the plethysmogram the stepwise increase in pressure is stopped as soon as cuff pressu...

Page 35: ... to deal with the emptying of small microvessels from blood under the cuff The absorption of the light between light source and light detector usually decreases due to this effect This change in absorption has nothing to do with the unloaded diameter of the finger artery and is compensated for by the system Since this effect is more pronounced immediately after starting a blood pressure measuremen...

Page 36: ...see if you can find the place where the two components of the plethysmograph have pressed on the finger skin Usually some coloring of these pressure points can be seen immediately after removing the cuffs Verify that the pressure points were correctly centered between the knuckles and symmetrically placed Use of Comments With the ADInstruments Human NIBP software installed LabChart enters comments...

Page 37: ... the largest differences between Human NIPB outputs and Cyclic Measurements are due to beat time detection This results in the beat to beat transitions not quite lining up Typically the beat to beat transitions agree to within 70 ms excluding AutoCal periods The Human NIBP Mean Arterial pressure and the Cyclic Measurements Mean on the Finger Pressure channel agree to within about 1 mmHg outside th...

Page 38: ...ble Test modes 1 Steady pressure This generates a flat constant pressure wave Available options are 50 100 150 200 250 and 300 mmHg In this test mode it takes about 20 seconds for the Human NIBP Nano to build up to the correct mode and pressure Figure 2 18 Human NIBP HCU and test dialog right showing available options and the Human NIBP Settings dialog left showing AutoCal and ﬁnger cuff switching...

Page 39: ...g that cannot be changed In Figure 2 20 a pressure offset of 100 mmHg at 1 Hz was selected The resultant square wave is 150 mmHg for 0 5 s followed by 50 mmHg for 0 5 s and so on Figure 2 19 Human NIBP Test Mode dialog showing the available Steady pressure options top and the generation of a steady pressure of 100 mmHg bottom Figure 2 20 Human NIBP Test Mode dialog showing the Square wave options ...

Page 40: ...not inflate the finger cuffs It creates a continuous square waveform in the Finger Pressure and HCU Pressure channels see Figure 2 21 on page 35 In the Finger Pressure channel it generates a simulated pressure wave of 2 second duration at 200 mmHg followed by 3 seconds at 0 mmHg In the HCU Pressure channel it generates a simulated pressure wave of 2 second duration at 100 mmHg followed by 3 second...

Page 41: ...en initially learning how to use the Human NIBP Nano you may find that finger arterial pressure readings are unusually high or low this is most often due to incorrect positioning of the finger cuffs which should be tightly wrapped absolutely centered between the knuckles of the middle phalange and also symmetrically placed i e not rotated Checking measurement accuracy Before or after a measurement...

Page 42: ...rtant not only to keep the hand and fingers warm but also the arm and neck Continuous blood pressure is often more variable than expected If you are interested in a detailed blood pressure response ask the subject to refrain from speaking during the measurement and explain to the subject that movements of hand and fingers laughing coughing and so on may cause waveform artifacts in the finger blood...

Page 43: ...not solve the problem try following steps 2 and 3 below 2 Ensure you hold the HCU transducer and the reference point at the same level before zeroing Step 2 Device not found by LabChart The Human NIBP Nano is not always recognized by LabChart when directly plugged into USB ports with certain chip sets If the device appears in Windows Devices and Printers dialog but is consistently not found by Lab...

Page 44: ...es around the baseline pressure by a fixed offset of 50 mmHg see Figure 2 19 on page 34 6 Click Start in LabChart and the click Sample in the Warning dialog that appears It will take around 20 seconds for the Human NIBP Nano Interface to settle into the chosen Steady pressure level 7 Click Stop to stop sampling and reopen the Human NIBP Test Mode dialog to select a different pressure level 8 At ea...

Page 45: ...40 Human NIBP Nano Owner s Guide ...

Page 46: ...ial is not intended in any way as a service guide It should be noted that any modification or attempt to service your Human NIBP Nano Interface voids your rights under the warranty How it Works In a manner similar to other Finapres products www finapres com the Human NIBP Nano uses the volume clamp method originally described by the Czech physiologist Jan Peñáz Peñáz 1969 Peñáz 1973 to measure blo...

Page 47: ...e wavelengths are optimal for interactions with biological tissues for the following reasons 1 The optical properties of water Water the main constituent of tissues absorbs light very strongly in ultraviolet and longer infrared wavelengths Melanin strongly absorbs the shorter wavelengths of light There is however an optical window in water s absorption spectrum that permits visible red and shorter...

Page 48: ...the sudden rise in finger intra arterial pressure during systole causes an increase in arterial diameter which is detected as an increase in light absorption and thus as a decrease in the signal detected by the plethysmograph With constant cuff pressure during the diastolic phase of a beat as blood pressure declines gradually blood is expelled from the artery and consequently the amount of light d...

Page 49: ...by analyzing the plethysmogram at one or more other pressure levels The pressure diameter relationship The relationship between changes in arterial diameter and changes in intra arterial pressure depends on the mechanical properties of the artery When the artery is very compliant low rigidity diameter changes are relatively large whereas diameter changes in stiff arteries are small It is a well kn...

Page 50: ...y change in diameter the artery is effectively clamped at a certain diameter the set point If this diameter corresponds with the unstressed or unloaded state of the finger artery transmural pressure is zero all the time Therefore when the volume clamp method is active at the proper unloaded diameter of the finger artery finger cuff pressure equals intra arterial pressure A servo controller system ...

Page 51: ...trumentation to enable the conversion of Peñáz s volume clamp method into Finapres standing for FINger Arterial Pressure Wesseling et al 1995 Their most important development was an automated servo setpoint adjuster the PhysioCal procedure which permitted the determination and periodic updating of the unloaded arterial diameter Unfortunately defining the correct unloaded diameter of a finger arter...

Page 52: ...a finger artery due to changes in smooth muscle tone The procedure at the start of a measurement is shown in Figure A 4 The cuff pressure is increased in standard increments to a maximum level until one heart beat is detected per level and then decreased The signal in the plethysmogram increases to a maximum and then decreases The cuff pressure corresponding to the maximum signal in the plethysmog...

Page 53: ...oop is closed and there is a decrease in the amount of blood beneath the cuff leading to a small increase in the level of transmission Interruptions due to Auto calibration or AutoCal occur less and less frequently until a 70 beat interval roughly 1 minute is established Example of a normal AutoCal During a normal AutoCal the blood pressure measurement is interrupted immediately after the detectio...

Page 54: ...en the smooth muscle tone is not stable If these so called multi step AutoCals are frequently observed during a measurement accuracy of the finger blood pressure may be reduced Special AutoCals with variable pressure levels If during a finger blood pressure measurement the device is unable to recognize beats the PhysioCal algorithm uses variable pressure levels instead of constant pressure levels ...

Page 55: ...how oscillations occasionally Two types of oscillation can be distinguished the low on off or railing type and the high frequency sinusoidal type The presence of oscillations of either type is detected by the device and appropriate measures are taken when possible In the case of a railing type oscillation pressure may be switching from almost zero to almost full cuff pressure If this occurs the se...

Page 56: ...le if there are movement artifacts or if the change in setpoint is considered too large the frequency of AutoCal will increase automatically A note on blue ﬁngertips During a normal finger blood pressure measurement some coloring of the finger tip distal from the finger cuff is observed The arteries below the finger cuff are unloaded that is the arterial walls are held at zero transmural pressure ...

Page 57: ...nto the capillaries and the lymphatic system to return to the veins Also red blood cells trapped in the micro circulation by the applied cuff pressure have been observed to wash out in a period of several minutes Although this evidence does not prove that damage to the finger monitored with Human NIBP Nano cannot occur no problems have been apparent since the introduction of finger blood pressure ...

Page 58: ...t the unloaded diameter determined using the PhysioCal algorithm was close to the theoretically required 1 4 1 2 of the open diameter level Wesseling 1995 At this diameter the transmural pressure is close to zero and therefore finger cuff pressure is equal to intra arterial finger blood pressure A second basis for the assumption that the Human NIBP Nano correctly measures finger arterial blood pre...

Page 59: ...eriphery The shape of the pressure wave is changed both by reflection and by a pressure gradient due to branching of the arterial tree Peripheral reflection results in a frequency dependent amplification of the pressure wave this leads to increased systolic pressure in a heart rate dependent manner Bos 1995 Hence finger blood pressure waveforms are more undulatory than brachial arterial pressure w...

Page 60: ...ulse wave amplification is highest in the young Due to the combined effects of pulse wave amplification and pressure decay systolic pressure is elevated in the young but equal to or even lower than brachial pressure in elderly subjects The mean pressure gradient is clearly present in Figure A 10 and Figure A 11 Bias and precision In a group of 53 subjects described in previous studies Bos 1992 Ide...

Page 61: ...ial pressure waveforms from finger arterial pressure by means of waveform filtering Gizdulich 1996 Additionally a method was developed to correct for the pressure gradient using a regression equation Reconstruction of brachial intra arterial pressure from finger arterial pressures FinAP has implemented in the study of Guelen et al 2003 As an illustration of this see their published data in Table A...

Page 62: ... a clinical setting However the Human NIBP Nano is ideal for ambulatory long term measurements for example in the study of the circadian 24 hour blood pressure profile and in conditions where fast hemodynamic changes are expected such as during cardiovascular stress testing orthostatic tolerance testing and in many other physiological studies In general all these studies prefer a finger blood pres...

Page 63: ...o strap from one side and then click the locking mechanism of the wristband on the two sides at once Remove the lower part of the wristband first followed by the upper part The wristband and the unit can be cleaned separately WARNING Do not allow water to enter the unit or finger cuff connectors at any time Do no immerse the device and its cables Al low enough time to dry when water accidentally e...

Page 64: ...chanism of the wristband on both sides at once and fasten the wristband Finally apply the velcro strap from one side to the other It is recommended to change the air filters of the Nano Core wrist unit every year Remove the filter assembly as shown above and replace it with a new filter assembly as shown below ...

Page 65: ...60 Human NIBP Nano Owner s Guide ...

Page 66: ...inger blood pressure comparison with intra arterial recordings Clin Science 1999 97 129 139 DeJong de Vos van Steenwijk CCE Wieling W Johannes MD Harms MP Kuis W Wesseling KH Incidence and hemodynamic characteristics of near fainting in healthy 6 to 16 year old subjects JACC 1995 25 1615 1621 Gizdulich P Imholz BPM van den Meiracker AH Parati G Wesseling KH Finapres tracking of systolic pressure a...

Page 67: ...397 Imholz BP Wieling W Langewouters GJ van Montfrans GA Continuous finger arterial pressure utility in the cardiovascular laboratory Clinical Autonomic Research 1991 1 1 43 53 Imholz BP Parati G Mancia G Wesseling KH Effects of graded vasoconstriction upon the measurement of finger arterial pressure Journal of Hypertension 1992 10 9 979 984 Imholz BP Automated blood pressure measurement during er...

Page 68: ...7 248 Smith NT Wesseling KH de Wit B Evaluation of two prototype devices producing noninvasive pulsatile calibrated blood pressure measurement from a finger J Clin Monit 1985 1 17 29 Wesseling KH Settels JJ Van der Hoeven GMA Nijboer JA Butijn MWT and Dorlas JC Effects of peripheral vasoconstriction on the measurement of blood pressure in a finger Cardiovascular Research 1985 19 139 145 Wesseling ...

Page 69: ... 2 Weight 1 4 kg Power Requirements 100 240 VAC 50 60 Hz 20 VA Sample Rate 200 Hz maximum Power requirements 100 240 VAC 50 60 Hz 20 VA Main unit fuse Internally fused not user serviceable Power cord IEC 320 to local mains plug Protection against electric Type of protection Class I equipment shock EN 60601 1 Degree of protection type BF applied part Power dissipation In Wrist Unit 3 6 W In finger ...

Page 70: ...orrection Unit The EMC conformity of the Human NIBP Nano Interface includes the use of the following external cables transducers and accessories Cable accessory Description Wrist Unit cable assembly including Height Correction Unit and ﬁnger cuff connected to the Wrist Unit Standard length of Wrist Unit cable assembly 275 cm Standard length of HCU cable 30 cm The Human NIBP Nano Interface should n...

Page 71: ...uman NIBP Nano Interface is suitable for use in all establishments including domestic establishments and those directly connected to the public low voltage power supply network that supplies buildings used for domestic purposes Immunity Mains power quality should be that of a typical commercial or hospital environment If the user of the devices requires continued operation during power mains inter...

Page 72: ...n NIBP Interface uses RF energy only for its internal function Therefore its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment RF emissions CISPR 11 Class A The Human NIBP Interface is suitable for use in all establishments including domestic establishments and those directly connected to the public low voltage power supply network that supplies ...

Page 73: ... 4 5 1 kV differential mode 2 kV common mode 1 kV differential mode 2 kV common mode Mains power quality should be that of a typical commercial or hospital environment Voltage dips short interruptions and voltage variations on power supply input lines IEC 61000 4 11 5 Ut 95 dip in Ut for 0 5 cycle 40 Ut 60 dip in Ut for 5 cycles 70 Ut 30 dip in Ut for 25 cycles 5 Ut 95 dip in Ut for 5 sec 5 Ut 95 ...

Page 74: ...f equipment marked with the following symbol NOTE 1 At 80 MHz and 800 MHz the higher frequency range applies NOTE 2 These guidelines may not apply in all situation Electromagnetic propagation is affected by absorption and reﬂection from structures objects and people ª Field strengths from ﬁxed transmitters such as base station for radio cellular cordless telephones and land mobile radios amateur r...

Page 75: ...aximum output power of transmitter W 150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2 5 GHz d 1 17 P d 1 17 P d 2 33 P 0 01 W 0 1 m 0 1 m 0 2 m 0 1 W 0 4 m 0 4 m 0 7 m 1 W 1 2 m 1 2 m 2 3 m 10 W 3 7 m 3 7 m 7 3 m 100 W 11 7 m 11 7 m 23 4 m For transmitters rated at a maximum output power not listed above the recommended separation distance d in metres m can be estimated using the equation applicab...

Page 76: ...nces are controlled Portable and mobile RF communications equipment should be used no closer to any part of the devices including cables than the recommended separation distance in the table below Field strengths from fixed RF transmitters as determined by an electromagnetic site survey should be less than the compliance level in each frequency range ...

Page 77: ...any others using any ADI product or solution agree to use it in a sensible manner for purposes for which it is suited and agree to take responsibility for their actions and the results of their actions If problems arise with an ADI product ADI will make all reasonable efforts to rectify them This service may incur a charge depending on the nature of the problems and is subject to the other conditi...

Page 78: ...safe to be used as a medical device ADI Product Hardware Warranty ADI warrants that PowerLab Data Acquisition Units PL prefix 1 and Front ends FE prefix 2 shall be free from defects in materials and workmanship for five 5 years from the date of purchase Other PowerLab Data Acquisition Units3 Front ends4 and Pods5 shall be free of defects in material and workmanship for three 3 years from their dat...

Page 79: ... electrical or environmental stress used with incorrectly wired or substandard connectors or cables or with the original identification marks altered Tampering with or breaking of the Warranty Seal will also void the warranty Product Types Warranty Term ADI manufactured products covered by a ﬁve 5 year warranty 1 Data Acquisition Units PowerLab 35 series with PL prefix 2 Front ends ADI Front end S...

Page 80: ...VIDED AS IS AND ADI MAKES NO WARRANTY AS TO ITS USE OR PERFORMANCE EXCEPT FOR ANY WARRANTY CONDITION REPRESENTATION OR TERM THE EXTENT TO WHICH CANNOT BE EXCLUDED OR LIMITED BY APPLICABLE LAW ADI AND ITS SUPPLIERS MAKE NO WARRANTY CONDITION REPRESENTATION OR TERM EXPRESS OR IMPLIED WHETHER BY STATUTE COMMON LAW CUSTOM USAGE OR OTHERWISE AS TO ANY MATTER INCLUDING WITHOUT LIMITATION NON INFRINGEMEN...

Page 81: ...the laws of the State of California Technical Support The Purchaser is entitled to free technical support for any ADI product for one year from its date of purchase Our technical support staff can provide advice concerning installation and operation of ADI products Services outside of this may incur a charge Technical support staff will not provide experimental protocols or procedural instructions...

Page 82: ...oducts b documentation c any media printed materials documents electronic files including without limitation settings and example data files illustrations explanations or other information that accompanies or is a component of the ADInstruments Products and d any modifications upgrades updates and or additions to Software collectively Upgrades that are not licensed under a separate agreement 2 Add...

Page 83: ...e size ii restrict suspend or terminate any or all LabChart Online services at any time without notification It shall be the responsibility of Licensee and Authorized Users to maintain the accuracy completeness confidentiality and current status of account information at all times LabChart Online may not be accessed using any third party licensee s login and password Licensee bears sole responsibi...

Page 84: ...as a server and that is located at a fixed location i e not a mobile computing device Licensee may make copies of LabTutor Server for backup purposes Backup copies of LabTutor Software Suite are to be used only to replace the original copy in the event that it is destroyed or becomes defective The above referenced LabTutor Server software may be accessed by one or more client Computers ADInstrumen...

Page 85: ...dentiality and current status of account information at all times LabTutor Online may not be accessed using any third party licensee s login and password Licensee bears sole responsibility for all activity on Licensee s account It is the responsibility of Licensee to ensure that all content generated by Licensee or Authorized Users is appropriate for use in education If Licensee becomes aware of a...

Page 86: ...ssly forbidden ADInstruments and its licensors retain all rights in title to and ownership of the Images and Videos Licensee shall take all steps reasonably necessary to protect ADInstruments and its licensors ownership rights c Copyright Notices Licensee may not represent or cause others to believe that the Images or Videos are Licensee s original works or that ADInstruments endorses or is affili...

Page 87: ...ssign or otherwise transfer any of Licensee s rights under this Agreement The Software may not be rented leased sub licensed or loaned to any third party 13 Limited Warranty ADInstruments warrants the media on which the licensed Software is supplied to be free from defects in materials and workmanship under normal use for ninety 90 days from the date that ADInstruments invoices Licensee for such S...

Page 88: ...old or if sold into the United States of America by the laws of the State of California excluding its conflicts of laws principles The Licensee and the Licensor agree that conflict provisions of the governing law and United Nations Convention on Contracts for the International Sale of Goods shall not apply 17 Severability The finding by any court of competent jurisdiction that any provision of thi...

Page 89: ...d representative of ADInstruments C007F Copyright ADInstruments Pty Ltd 2000 2018 All rights reserved PowerLab MacLab LabChart LabTutor and LabAuthor are registered trademarks of ADInstruments Pty Ltd Chart and Scope application programs LabTutor Server and LabTutor Online are trademarks of ADInstruments Pty Ltd The names of specific recording units such as PowerLab 16 35 are trademarks of ADInstr...

Page 90: ...85 Human NIBP Nano Owner s Guide ...

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