User Manual for Riester Aneroid Sphygmomanometers

Quick guide from the manual

Riester aneroid sphygmomanometers are professional diagnostic devices used to measure systolic and diastolic blood pressure on the upper arm or thigh. These devices operate on the indirect Korotkoff method. Important: Only trained medical personnel should perform blood pressure measurements. Do not inflate the cuff above 300 mmHg. If overpressure occurs, use the quick release (fully open the air release screw or press the push-button valve).

Installation and Setup

Wall Model (ri-former big ben): Remove the wing nut under the cuff basket, detach the wall bracket, mark and drill holes, insert anchors, and fasten the bracket. Place the unit on the bracket so the top engages the cuff basket edge and the bottom fits over the protruding screw. Tighten the wing nut.

Mobile Stand (big ben): Assemble the mobile stand according to the included instructions. Screw the device onto the stand in a clockwise direction. Adjust height by opening the retaining screw on the stand.

Anesthesia Model (big ben): Remove the wing nut, attach the wall bracket to the back of the universal clamp (No. 10384) using provided screws, and mount the unit as described for the wall model.

Cuff Selection

Correct cuff size is critical for accurate readings. The white index line must fall within the 'Range' marked by arrows on the cuff. If the line is outside this range, the cuff is too small or too large.

• Nylon-Velcro Cuffs: Standard cuffs with hook-and-loop fasteners.
• Cotton-Velcro Cuffs: Similar to nylon but made of cotton.
• Hook Cuffs: Feature metal hooks that engage with metal rods on the cuff cover.
• Bandage Cuffs: Use a bandage strip and hook for attachment.

Blood Pressure Measurement

1. Patient Position: Patient should sit comfortably, legs uncrossed, back and arm supported. The cuff center should be at the level of the right cardiac atrium. Allow 5 minutes of rest before the first measurement.
2. Application: Place the cuff so the lower edge is 2-3 cm above the elbow or 5 cm above the knee. Ensure the marking sign is over the artery.
3. Inflation: Close the valve (turn clockwise, except for ri-san). Inflate to approx. 20 mmHg above the expected systolic pressure.
4. Measurement: Open the air release screw counterclockwise. The ideal deflation rate is 2-3 mmHg/s (needle should move 1-1.5 scale marks per second).
5. Auscultation: Use the Korotkoff sounds (Phase V for adults/pregnant women, Phase IV for children aged 3-12).

Cleaning and Maintenance

Cleaning: Manometer and bulb can be wiped with a damp cloth. Never place the manometer in liquid.

Disinfection: Cuffs can be washed in cold water with disinfectant or wiped with ethanol. Ensure cuffs are completely dry before use. Do not iron cuffs or expose them to intense sunlight.

Precision Test: Remove the tube from the manometer and hold it vertically. If the needle does not rest at zero, the device requires recalibration by an authorized Riester dealer.