Nasco healthcare Life/form lf01095 User manual

ONLINE: NascoHealthcare.com

EMAIL: [email protected]

PHONE: 1.800.431.4310

ADDRESS: 901 Janesville Ave.

Fort Atkinson, WI 53538

Blood Pressure Simulator

LF01095U

INSTRUCTION MANUAL

WARNING: Products may contain dry natural rubber. 5-Year Warranty

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ABOUT THE SIMULATOR

The Nasco Life/form®Blood Pressure Simulator is designed for years of maintenance free operation as

a training tool for not only the nurse, doctor, or pre-hospital health care provider, but also for anyone

involved in the training of health care professionals.

The Nasco Life/form®Blood Pressure Simulator has digitally recorded blood pressure sounds that can

be varied by pulse rate and volume. The different Korotkoff phases can be identified and an optional

auscultatory gap can be selected. A palpable radial pulse is present in the wrist. For additional uses,

purchase the Amplifier/Speaker System (LF01189U) for group demonstrations or review.

LIST OF COMPONENTS

• Case

• Arm with speaker wire

• Electronic control unit

• 6 “AA” batteries

• Sphygmomanometer

GENERAL INSTRUCTIONS FOR USE INSTALLING THE BATTERIES

Take the Blood Pressure Electronic Control Unit from the box and turn

it over, placing it face down onto a padded work surface. Locate the

“Open” compartment on the back of the panel where the batteries are

to be installed. (See figure 1.) Place your thumb or index finger on the

“Open” compartment and push up. This will open the battery compart-

ment. The compartment is marked as to the “+” and “–” positions of the

batteries. The battery bracket is now accessible to the user.

Actual product may vary slightly from photo. Nasco Healthcare reserves the right to change product

color, materials, supplies, or function as needed.

ON/OFF

SWITCH

Figure 1

Figure 2

Install six “AA” batteries as indicated by the orientation diagram embossed in the bottom of the bracket.

It is recommended that alkaline batteries be used for increased battery life. After the batteries have

been properly installed, reassemble the Blood Pressure Simulator by simply reversing the disassembly

procedures. Place the unit face up on the work surface and turn it on by pressing the on/off switch on

the top right of the unit. (See figure 2.) Observe the display and verify that a readable display is present,

indicating proper battery installation.

Note: The control box has a battery saving feature which will turn the unit off after about 8-10 minutes if

no keys are used within that period of time.

The next step is to connect the simulated arm and speaker assembly along with the sphygmomanometer

cuff and gauge assembly included with the unit. First, locate the end of the pressure line attached to the

sphygmomanometer that has the male luer fitting attached to it. Attach this to the female luer fitting at

the top of the unit marked CUFF. (See figure 3.) After the pressure line has been properly installed, locate

the plug that is at the end of the wire which

extends from the simulated arm assembly.

Insert the plug from

the arm into the jack at the top of the unit marked ARM. (See figure 4.)

At this point the Blood Pressure Simulator is ready for use. The unit has been factory calibrated for use

with the accessories included in the kit. No further calibration adjustments should be necessary at this

time. If the unit is to be used with a sphygmomanometer other than that supplied with the unit, or

if recali-

bration is necessary at a later date,

then see the section titled “Calibration Procedures.”

Figure 14 Figure 15

Preparing Your Equipment for Use with the Nasco Blood Pressure Simulator

To adapt your sphygmomanometer for use with the simulator, it is first necessary to obtain the luer fitting

and the T-fitting included with the simulator, which is also available through your Nasco catalog sales

office. Using a wire cutting pliers or similar instrument, carefully cut the pressure line of the sphygmoma-

nometer about 2” from the gauge. (See figure 14.) Take the T-fitting and insert it between the two ends

of tubing that were previously cut. (See figure 15.) Assemble the portion of pressure line tubing over the

remaining barbed end on the T-fitting. (See figure 16.) Lastly, take the loose end of the tubing and push

the male luer fitting into it. (See figure 17.) Attach the male luer fitting to the fitting marked CUFF at the

top of the unit. Once all of the necessary connections have been properly made, go to the section titled

“Calibration Procedures” and calibrate the unit. When the calibration procedures have been completed,

the simulator is ready for use.

SUPPLIES/REPLACEMENT PARTS FOR BLOOD PRESSURE SIMULATOR

LF01096U Electronic Control Unit with Sphygmomanometer

LF01189U Amplifier/Speaker System

LF01072U Replacement Cuff with Gauge

LF01125U Electronic Control Unit Only

Figure 16 Figure 17

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Figure 3

Pressure Simulator is ready for use. The unit has been factory calibrated for use with the accessories

included in the kit. No further calibration adjustments should be necessary at this time. If the unit is to be

used with a sphygmomanometer other than that supplied with the unit, or if recalibration is necessary at

a later date, then see the section titled “Calibration Procedures”.

FAMILIARIZING YOURSELF WITH THE NASCO Life/form®

BLOOD PRESSURE SIMULATOR CONTROL PANEL

Under the display window are three buttons: Menu, Gap, and Calibrate. (See figure 5.) The systolic pres-

sure is set by pressing the Menu key once. The pressure is adjusted up or down using the up and down

arrow keys. (See figure 6.) The diastolic pressure is set by pressing the Menu key a second time. Adjust

the setting up or down with the arrow up and down keys. (See figure 7.) The heart rate is set by pressing

the Menu key a third time, and adjusting the rate with the arrow up and down keys. The pulse rate can be

set from 0 beats per minute to 300 beats per minute. (See figure 8.) The palpation can be set to either

on or pulseless. When the pulseless setting is used, the diastolic and systolic pressures will automatically

be set to 0.

Figure 4

The Nasco Life/form®Blood Pressure Simulator is programmed to demonstrate the 5 Korotkoff phases,

including an auscultatory gap, which can be heard during auscultation of a subject while measuring the

subject’s blood pressure. Each is distinctly different and present for only a portion of the measurement

sequence.

LOW BATTERY INDICATOR

When the battery supply diminishes to a level near the point that the unit will no longer function properly,

the “low batt” segment of the systolic pressure display will activate when the pressure in the sphygmoma-

nometer cuff reaches above 20 mmHg. At this point, the batteries should be replaced as soon as possi-

ble in order to insure proper operation of the unit. Refer to the section titled “Installing the Batteries.”

CALIBRATION PROCEDURES

To calibrate the simulator, set the unit up as described in the section titled “Using The Nasco Life/form®

Blood Pressure Simulator.” Apply the cuff to the simulated arm. Set the control box systolic pressure

to 150 mmHg and set the diastolic pressure to 70 mmHg. Proceed with a simulated blood pressure

measurement. Note the discrepancy in the readings between the gauge and the control box. Set the

systolic “offset.” Example: If the blood pressure reading was taken and the sounds started at 148 mmHg,

then the offset is +2. If the sounds started at 152 mmHg, the offset is –2. For this example, assume that

the sounds started at 148 mmHg. Press and hold the Calibration key until the systolic correction window

appears. (See figure 12.) Using the arrow down key set the correction to +2. Set the diastolic offset. Exam-

ple: If the blood pressure reading was taken and the sounds stopped at 72 mmHg, the offset is –2; or if

the sounds stopped at 68 mmHg, the offset is +2. For this example, assume that the sounds stopped at

72 mmHg. From the systolic window, press the Menu key to change the diastolic window. (See figure 13.)

With the arrow up key, set the correction to –2. Press the Menu key again and the message “CALIBRA-

TION COMPLETE” will appear. The main menu window will be displayed.

Figure 6

Figure 5

Figure 7 Figure 8

Figure 13Figure 12

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The arrow up and down keys also control the volume of the sounds that are present in the arm. From the

main menu, press the up arrow key to increase the volume, press the down arrow key to decrease the vol-

ume. The volume levels can be adjusted from level 1 (the lowest volume) to level 7 (the highest volume).

USING THE NASCO Life/form®BLOOD PRESSURE SIMULATOR

First, verify that the pressure line tubing from the sphygmomanometer and the audio line coming from

the simulated arm assembly are properly connected to the blood pressure simulator unit, as previously

described in the set up procedures. Apply the sphygmomanometer cuff and gauge to the simulated arm

assembly in the usual manner. Apply the stethoscope to the simulated arm, also in the usual manner.

Set the systolic and diastolic controls to the desired levels. Select the auscultatory gap if desired. Finally,

adjust the pulse rate control to the desired setting.

To proceed with the simulated blood pressure measurement, first close the valve on the sphygmoma-

nometer bulb tightly and begin pumping air into the cuff until the gauge reads higher than the preset

systolic level chosen. Once this point is reached, loosen the valve on the bulb slightly to allow the gauge

pressure reading to decrease slowly. While monitoring the arm assembly with the stethoscope, note the

point on the sphygmomanometer gauge when the first Korotkoff sound is heard. This will be the systolic

blood pressure. Allow the pressure in the cuff to continue to decrease until the point at which the last

pulse is heard, noting the reading on the gauge. This is the diastolic blood pressure.

Compare the results of reading the systolic and diastolic blood pressures on the gauge with the respec-

tive settings on the simulator. If the readings were accurate, they should compare favorably with the pre-

set values. If the auscultatory gap had been selected, then an absence of an audible pulse would have

been noticed during what would have been the phase 2 Korotkoff sound. It is this lack of an audible pulse

that is considered an auscultatory gap. Note that in reality the auscultatory gap can be present in either

the phase 1 or phase 2 Korotkoff sounds. If it is desired to demonstrate the sounds heard while measuring

a subject’s blood pressure to the trainee or group of trainees, an auxiliary amplifier/speaker system is

available (LF01189U). If the auxiliary speaker is used, the speaker is plugged into the EXT AUDIO AMP

jack located next to the ARM output jack at the top of the unit. Adjust the volume control to increase the

output of the auxiliary speaker amplifier, and proceed with the blood pressure measurement sequence

as it would normally be performed, except that the stethoscope need not be used. Instead, listen to the

sounds as they emanate from the speaker amplifier, noting the differences in the Korotkoff phases being

presented.

PALPABLE PULSE FEATURE

The Nasco Life/form®Blood Pressure Simulator also incorporates a palpable pulse at the radial

location. (See figure 9.) Palpations can be felt upon start-up of the unit or after blood pressure settings

have been made. Press the Menu key repeatedly until “Set PALPATION” menu appears. “Pulse ON” is

defaulted and enables the palpation feature.

The pulse in the wrist will begin when the electronic box is turned on. During the actual blood pressure

reading, the palpable pulse will turn off when the cuff is inflated and surpasses the systolic set point. It

will turn on again when the cuff is deflated 20 mmHg BELOW the diastolic set point.

NOTE: The pulse feature is turned off during this time to allow students to clearly hear the Korotkoff

sounds through the stethoscope without interference from the background noise of the pulse feature in

the wrist. The palpable pulse is delicate and should be palpated lightly as you would with a real patient.

Pressing too hard can damage the pulse feature.

Make sure the cable from the blood pressure arm is properly connected to the electronic box and the

Palpation feature is in the “PULSE ON” mode. A pulseless condition can be simulated by switching your

unit to the “pulseless” mode. Press the Menu key repeatedly until “Set PALPATION” menu appears. By

pressing the down arrow at this point, palpations can be disabled, causing the simulator to be pulseless.

When in the “pulseless” mode, all settings are automatically reset to 0 and all blood pressure sounds are

disabled. The pulseless setting will also turn off the sounds in the arm. The pulse will always be on unless

the pulseless feature is activated or if the systolic or heart rate levels are set to zero. To do this, press the

Menu key four times.

Pulse Location

Figure 9

Figure 10 Figure 11

The down arrow key will set the pulse to pulseless. Press the arrow up key to turn the pulse back on.

(See figure 10.) Located to the right of the Menu key is the auscultatory Gap key. (See figure 11.) This key

is included to simulate the auscultatory gap that is sometimes present between phase 1 and phase 2

sounds in which no audible sound is noted during this portion of auscultation. This control function is

included so that the trainee can become familiar with this phenomenon. Pressing the Gap key simply

turns the gap function off or on. When the key is pressed, a message will briefly appear that the ausculta-

tory gap is enabled or disabled. Also the main display will show (at the bottom right of the display) either

AGap:Y (for on) or AGap:N (for off).

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