Disposable pulse oximeter sensors, also known as Disposable SpO₂ sensors, are medical devices designed to non-invasively measure arterial oxygen saturation (SpO₂) levels in patients. These sensors play a crucial role in monitoring respiratory function, providing real-time data that assists healthcare professionals in making informed clinical decisions.

1.The Importance of Disposable SpO₂ Sensors in Medical Monitoring

Monitoring SpO₂ levels is vital in various medical settings, including intensive care units (ICUs), operating rooms, emergency departments, and during general anesthesia. Accurate SpO₂ readings enable the early detection of hypoxemia—a condition characterized by low levels of oxygen in the blood—which can prevent potential complications and guide appropriate therapeutic interventions.

The use of disposable sensors is particularly advantageous in preventing cross-contamination and hospital-acquired infections. Unlike reusable sensors, which may harbor pathogens even after thorough cleaning, disposable sensors are designed for single-patient use, thereby enhancing patient safety.

2. Types of Disposable SpO₂ Probe

2.1 When selecting disposable SpO₂ sensors for different age groups, consider the following options:

2.1.1 Neonates

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Neonatal sensors are designed with the utmost care to protect the delicate skin of newborns. These sensors often feature low-adhesive materials and soft, flexible designs that minimize pressure on fragile areas like fingers, toes, or the heel.

2.1.2 Infants

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For infants, slightly larger sensors are used to fit snugly on tiny fingers or toes. These sensors are typically lightweight and designed to withstand moderate movement, ensuring consistent readings even when the baby is active.

2.1.3 Pediatrics

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Pediatric sensors are tailored for children and are designed to fit comfortably on smaller hands or feet. The materials used are gentle yet durable, providing reliable SpO₂ measurements during play or routine activities.

2.1.4 Adults

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Adult disposable SpO₂ sensors are specifically designed to accommodate the larger extremities and higher oxygen demand of adult patients. These sensors are essential for monitoring oxygen saturation in various clinical scenarios, including emergency care, perioperative monitoring, and management of chronic respiratory conditions.

2.2 Materials Used in Disposable SpO₂ Sensors

2.2.1 Adhesive Elastic Fabric  Sensors

The sensor is firmly fixed and not likely to shift, so it is suitable for infants and newborns with a short monitoring period.

2.2.2 Non-Adhesive Comfort Foam Sensors

Non-Adhesive Comfort Foam  disposable SpO₂ Sensors can be reused by the same patient for a long time, suitable for all people, and can be used for both long-term and short-term monitoring;

2.2.3 Adhesive Transpore Sensors

Features: Breathable and comfortable, suitable for adults and children with a short monitoring period, and departments with strong electromagnetic interference or light interference, such as operating rooms

2.2.4 Adhesive 3M Microfoam Sensors

Firmly stick

3.Patient Connector for Disposable SpO₂ Sensors

Summary of Application Sites

Sensor Picture	①	②		③		④	⑤
Material	Comfort Foam Non-Adhesive	Elastic Fabric Adhesive		Elastic Fabric Adhesive		3M Microfoam Adhesive	3M Microfoam Adhesive
Use Schematic
Application	Neonate＜3kg, Infant 3-20kg, Pediatric 10-50kg, Adult＞30kg	Neonate＜3kg, Infant 3-20kg, Pediatric 10-50kg, Adult＞30kg		Infant 3~20kg		Neonate＜3kg, Infant 3-20kg, Pediatric 10-50kg, Adult＞30kg	Infant 3~20kg
Application Site	Neonate foot, infant toe, adult and pediatric finger	Neonate foot, infant toe, adult and pediatric finger		Great toe		Neonate foot, infant toe, adult and pediatric finger	Great toe
Sensor Picture	⑥	⑦		⑧		⑨
Material	3M Microfoam Adhesive	3M Microfoam Adhesive		Transpore Adhesive		Transpore Adhesive
Use Schematic
Application	Adult＞30kg	Pediatric 10~50kg		Pediatric 10~50kg		Adult＞30kg
Application Site	Index or other finger	Index or other finger		Index or other finger		Index or other finger

4. Choosing the Right Sensor for Different Departments

Different healthcare departments have unique requirements for SpO₂ monitoring. Disposable sensors are available in specialized designs to meet the needs of various clinical settings.

4.1 ICU (Intensive Care Unit)

In ICUs, patients often require continuous SpO₂ monitoring. Disposable sensors used in this setting must provide high accuracy and withstand long-term application. Sensors designed for ICUs often include features like anti-motion technology to ensure reliable readings.

4.2 Operating Room

During surgical procedures, anesthesiologists rely on precise SpO₂ data to monitor a patient’s oxygen levels. Disposable sensors in operating rooms must be easy to apply and remove, and they should maintain accuracy even under challenging conditions, such as low perfusion or patient movement.

4.3 Emergency Department

The fast-paced nature of emergency departments requires disposable SpO₂ sensors that are quick to apply and compatible with various monitoring systems. These sensors help healthcare providers rapidly assess a patient’s oxygenation status, enabling timely interventions.

4.4 Neonatology

In neonatal care, disposable SpO₂ sensors must be gentle on delicate skin while providing reliable readings. Sensors with low-adhesive properties and flexible designs are ideal for monitoring newborns and premature infants.

By selecting the right type of sensor for each department, healthcare facilities can optimize patient outcomes and streamline workflow efficiency.

5.Compatibility with Medical Devices

One of the critical factors in selecting disposable SpO₂ sensors is their compatibility with various medical devices and monitoring systems. These sensors are designed Compatibility with Major Brands.

Disposable SpO₂ sensors are typically designed to be compatible with leading medical device brands, including Philips, GE, Masimo, Mindray, and Nellcor.
This versatility ensures that healthcare providers can use the same sensors across multiple monitoring systems, reducing costs and simplifying inventory management.
For instance, Masimo-compatible sensors often include advanced features like motion tolerance and low perfusion accuracy, making them suitable for critical care environments, neonatology.

Attached is a list of MedLinket compatible blood oxygen technology

Serial Number	SpO₂ Technology	Manufacturer	Interface Features	Picture
1	Oxi-smart	Medtronic	White, 7pin
2	OXIMAX	Medtronic	Blue-purple,  9pin
3	Masimo	Masimo LNOP	Tongue-shaped. 6pin
4		Masimo LNCS	DB 9pin (pin), 4 notches
5		Masimo M-LNCS	D-shaped, 11pin
6		Masimo RD SET	PCB special shape,11pin
7	TruSignal	GE	9 pin
8	R-CAL	PHILIPS	D-shaped 8pin (pin)
9	Nihon Kohden	Nihon Kohden	DB 9pin (pin) 2 notches
10	Nonin	Nonin	7pin