Pulse Oximeter Spo2 Sensor

What is a Pulse Oximeter spo2 Sensor?

A Pulse Oximeter Sensor (spo2 Sensor) is used to measure the oxygen saturation in red blood cells.They are usually the small clip-like devices which can be attached to the fingers, toes, earlobes, etc.

spo2 sensor is applicable to use with a compatible patient monitor or a pulse oximeter device. The sensor is intended to be used  for non‐invasively monitoring of the functional arterial oxygen saturation (spo2) and pulse rate (PR) for adult and pediatric  patients.

Why You Might Need a Pulse Oximeters spo2 Sensor?

The spo2 sensor is the heart of a pulse oximeter. It’s the part that actually touches the patient and it’s what reads the oxygen level in your blood.

Without the sensor, the oximeter can’t do anything. It’s like having a smartphone without a touchscreen.

• spo2 sensor detects oxygen levels (spo2) and pulse rate by using light beams that pass through the skin.
• It sends real-time data to the monitor, so doctors or caregivers can track your condition accurately.
• spo2 sensor ensures accurate readings only when it’s compatible and correctly placed.
• spo2 sensor comes in different types (for adults, kids, or even newborns), so choosing the right one matters.

If you're using a tabletop pulse oximeter or some types of patient monitor, you need a good-quality spo2 sensor to get accurate results because without a sensor you cannot track a patient’s spo2.

Types of spo2 Sensors

The accuracy of the spo2 readings will depend on the type of pulse oximeter probe you use, meaning it’s crucial to choose a suitable one. Here are the most common sensor types:

• Neonatal spo2 sensors: In addition to the saturation number, neonatal spo2 sensors can check sinus arrhythmia.
• Infant spo2 sensors: They check the oxygen saturation levels in infants and plethysmographic waveforms.
• Pediatric spo2 sensors: Pediatric spo2 sensors check oxygen and heart rate for neonates, babies, or children. Place this sensor on the toes or fingers. The child’s weight can help determine if the sensor is suitable for use on the patient.
• Adult spo2 sensors: They are used in adults to measure arterial blood and pulse rate.

The sensors are divided into the following types:

• Disposable spo2 sensors: Perfect for single-patient use, these sensors are widely used in emergency rooms, operating rooms, ICU, NICU, or hospital wards where patients need continuous monitoring. They help prevent cross-contamination and provide comfort to patients.
• Reusable spo2 sensors: These can be used multiple times or on different patients. They are easy to clean and disinfect, hence reducing cross-contamination.

How to Use Pulse Oximeter spo2 Sensors According to Their Types?

1. Reusable Sensors

• Place the index finger over the spo2 sensor window, with the fingertip resting at the end (the finger stop).
• If the index finger isn’t suitable, use a smaller finger instead.
• Make sure the spo2 sensor cable lies on top of the hand, not underneath.
• These spo2 sensors are meant for short use—reposition them every 4 hours. They’re not built for continuous, long-term monitoring.

2. Ear Sensors

• Use the clip attachment that comes with the spo2 sensor.
• Fit the spo2 sensor pads inside the clip, making sure the light source and detector face each other.
• Gently clip spo2 sensor onto the earlobe (adults only).
• Check that the light passes through properly for accurate readings.

3. Single-Use Sensors(Disposable)

• Wrap the spo2 sensor around the index finger, lining up the light and detector across from each other.
• Secure the cable with medical tape so it doesn’t move around.
• Use the extra adhesive dots provided to help the spo2 sensor stick better and last longer.

4. Sensors for Newborns (Neonates)

• Apply the spo2 sensor to the baby’s foot or palm.
• Line it up so the dashed line sits on the outer edge of the foot or palm.
• Secure the cable with medical tape to keep spo2 sensor in place gently.

Understanding Pulse Oximeter spo2 Sensor Price and Top Brands:

The most common question doctors ask from our team while exploring spo2 sensors is, ‘What is the price of a pulse oximeter spo2 sensor ?’

And the answer to this question is, the price varies depending on the models and brands,features,type. 

In India, The starting price of a pulse oximeter spo2 sensor  starts from ₹1000, and it goes up to ₹126793.

Top Brand of spo2 Sensor Price List You Can Check:

Top Models of spo2 Sensors Price List on Biomed Suppliers:

Maintenance Tips for Pulse Oximeter spo2 Sensor:

• The  spo2 sensor  should  be  used  together  with  the  compatible  unit  (such  as  a  Patient  Monitor  and  a  Pulse  Oximeter), otherwise inaccurate measurement results will be caused.
• Although biocompatibility  tests have been performed on all  the applied parts,  some exceptional allergic patients  may still have anaphylaxis. Do NOT apply to those who have anaphylaxis. 
• All the parts of the spo2 sensor should NOT be replaced at will. If necessary, please use the components provided by the manufacturer or those that are of the same model and standards as the accessories along with the monitor.
• Local laws and regulations must be followed when disposing of the spo2 sensor.
• A functional tester cannot be used to assess the accuracy of the spo2 sensor.
• Please do not use nail polishers or other cosmetic products on the nails. 
• Strenuous action of the subject or extreme electrosurgical interference may also affect the accuracy of spo2 sensor.

Warnings & Precautions for Using spo2 Sensor:

• Always use the spo2 sensor with a compatible device, such as the recommended patient monitor or pulse oximeter. Using it with an incompatible unit may lead to incorrect readings.
• Avoid using on people with known allergies. While the parts are tested for safety, some individuals may still have allergic reactions.
• Only use manufacturer-approved parts. Don’t replace spo2 sensor components with random alternatives. Use parts that match the original model and standards to avoid safety or performance issues.
• Dispose of the spo2 sensor responsibly according to local laws and medical waste regulations.
• Accuracy can’t be tested using a functional tester. Use only approved testing methods if needed.
• Avoid nail polish or cosmetics on the finger where the spo2 sensor will be applied, as it may interfere with readings.
• Keep patient movement minimal. Excess motion or interference from electrosurgical devices can affect accuracy.

Frequently Asked Questions:

What is the pulse oximeter spo2 sensor price?

In India,The pulse oximeter spo2 sensor price starts from ₹1000, and it goes up to ₹126793.

Why do we use a spo2 sensor?

It's a quick and harmless way to check if someone's blood oxygen level is too low

What is normal spo2 on a pulse oximeter?

A resting oxygen saturation level between 95% and 100% is regarded as normal for a healthy person.

Which finger is best for a pulse oximeter spo2 sensor?

For pulse oximeter readings, the middle or index finger is considered the best option for spo2 reading.

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