BP Monitor Bulb, Rubber Inflation Bulb

BP Monitor Bulb, Rubber

Ergonomic High-Resilience Elastomer: Constructed from heavy-duty, vulcanized rubber that prevents air leakage and resists material fatigue, ensuring thousands of consistent inflation cycles without cracking or stiffening over time.

Standardized Universal Fit: Features a precision-molded end-valve interface compatible with all standard chrome-plated or plastic air release valves and medical-grade tubing systems for seamless, airtight integration.

₹260.00

Quick Answer: A BP monitor bulb is the hand-squeezed rubber inflation bulb of a manual sphygmomanometer. Each squeeze pushes air into the cuff; on a complete bulb assembly, a one-way inlet valve lets it refill from the room and a release valve lets the cuff deflate at a controlled rate.

The Bulb’s Job in a Blood Pressure Reading

A manual reading depends on the bulb twice. First it inflates the cuff above the pressure at which blood flow in the arm stops. Then, through the release valve, it lets the pressure fall slowly while the user listens with a stethoscope over the artery at the elbow. The first tapping sound marks the systolic pressure and the point where the sounds disappear marks the diastolic; practical guides commonly suggest letting the pressure fall at about 2 to 3 mmHg per second so these points are not missed.

When a bulb fails, the symptoms are distinctive. A bulb that refills slowly after each squeeze usually has a sticking inlet valve. A cuff that loses pressure with the valve closed points to a crack in the bulb, a leaking valve or leaking tubing. A bulb that feels hard or sticky has simply aged and should be replaced, along with any perished tubing.

In biology and physiology practicals, the same apparatus is used to compare blood pressure at rest and after exercise.

Specifications

Part	Inflation bulb for manual sphygmomanometers
Material	Rubber
Action	Squeeze to inflate the cuff
Connection	Push-fit onto sphygmomanometer tubing
Valves included and neck size	Confirm at enquiry

Applications

Replacing a worn inflation bulb on an aneroid or mercury sphygmomanometer
Physiology practicals measuring blood pressure before and after exercise
Nursing skills training on manual blood pressure measurement
Servicing training BP apparatus in college stores

Care & Handling

Close the release valve only finger-tight; overtightening wears the valve seat.
Keep the bulb clean and dry and away from sunlight and heat.
Store the bulb where dust cannot be drawn into the inlet valve.
Replace bulbs that have gone hard, sticky or cracked.

Why Choose LabEquip

Hospitals, nursing colleges and physiology departments replace bulbs routinely rather than whole instruments. LabEquip lists this bulb in the General Lab Products range; send your instrument type and tubing size through the contact page.

Frequently Asked Questions

Why does the cuff lose pressure when the valve is closed?

Air is escaping somewhere: through a crack in the bulb, a leaking valve, a split tube or a worn cuff bladder. Test each part in turn, starting with the tubing and the bulb.

Why does the bulb refill slowly?

The one-way inlet valve at the tail of the bulb may be sticky or dirty. Cleaning or replacing the valve, or the bulb, restores normal refilling.

How fast should the cuff be deflated?

Slowly and steadily. Practical guides commonly suggest about 2 to 3 mmHg per second, which gives time to hear when the sounds start and stop.

Does a new bulb make a sphygmomanometer accurate?

No. The bulb only inflates and deflates the cuff. Accuracy depends on the gauge, which should be checked against a reference as your institution requires.

Can I use this bulb with any sphygmomanometer?

Most manual instruments use a push-fit bulb on rubber tubing, but neck and valve sizes vary. Confirm your instrument type and tubing size when you enquire.