How Nonin Medical Pioneered the Finger Pulse Oximeter
In the world of medical technology, few innovations have had as profound an impact as the finger pulse oximeter. At Turner Medical, we’re proud to feature Nonin Medical’s industry-leading oximeters, including the groundbreaking Nonin 8500 and versatile ear sensor options. This post dives into how Nonin revolutionized healthcare by inventing the finger pulse oximeter, making oxygen saturation (SpO2) monitoring accessible and reliable for millions.
The Birth of a Game-Changer
Founded in 1986 by physicist Philip Isaacson and a team of engineers in Minneapolis, Minnesota, Nonin Medical set out to make noninvasive physiological monitoring more practical. While oximetry—measuring oxygen in the blood—dated back to the 1930s, early devices were bulky, expensive, and often required invasive methods. Nonin’s mission, reflected in its name (“noninvasive”), was to create compact, affordable solutions.
In 1995, Nonin Medical achieved a historic milestone by introducing the world’s first finger pulse oximeter, the Onyx 9500. This portable, clip-on device transformed SpO2 monitoring by allowing quick, painless readings on a fingertip, eliminating the need for complex equipment or arterial blood draws. Its release marked a turning point, bringing pulse oximetry to hospitals, clinics, and even homes.
Nonin’s Innovation Timeline
Nonin’s journey to the finger pulse oximeter was paved with breakthroughs. Here’s a snapshot of their key achievements:
| Year | Milestone | Impact |
|---|---|---|
| 1986 | Nonin founded; first oximeter shipped | Laid the groundwork for noninvasive monitoring |
| 1990 | World’s first portable handheld oximeter | Made oximetry mobile for EMS and clinics |
| 1995 | World’s first finger pulse oximeter (Onyx 9500) | Revolutionized accessibility and ease of use |
| 2004 | First Bluetooth-enabled oximeter | Enhanced connectivity for modern healthcare |
Source: Nonin Medical history
[](https://www.nonin.com/company-history/)Why the Finger Pulse Oximeter Mattered
Before Nonin’s invention, pulse oximetry often required large machines or ear-based devices, like those used in the 1960s by Hewlett-Packard, which were impractical for widespread use. The Onyx 9500’s fingertip design offered:
- Portability: Small enough to carry anywhere, from ambulances to backpacks.
- Ease of Use: Simply clip on a finger for readings in seconds.
- Accuracy: Nonin’s PureSAT® technology ensured reliable SpO2 and pulse rate data, even in challenging conditions.
These advancements made pulse oximetry a standard in emergency care, anesthesia, and home monitoring, saving countless lives by detecting low oxygen levels early.
Ear Oximeters and Beyond: Nonin’s Versatility
While Nonin pioneered the finger pulse oximeter, they didn’t stop there. Recognizing that conditions like poor circulation or cold extremities can affect finger readings, Nonin developed ear sensors, such as the 8000Q2 for devices like the Nonin 8500. These clip onto the earlobe, offering an alternative for patients with Raynaud’s Syndrome or in high-altitude settings. Turner Medical carries Nonin’s full range, including FDA-cleared models for all needs.
Nonin’s Lasting Impact
The finger pulse oximeter’s invention opened doors to modern healthcare practices. Today, Nonin’s devices, like the Onyx Vantage 9590 and Nonin 8500, are trusted globally for their durability and precision. Customers praise their reliability: “Nonin’s accuracy is unmatched, even in tough conditions,” says one EMS professional. At Turner Medical, we stock these industry leaders to help you monitor health with confidence.
Shop Nonin Oximeters at Turner Medical
Ready to experience the legacy of Nonin’s innovation? Whether you need a finger pulse oximeter for home use or an ear sensor model for specialized monitoring, Turner Medical has you covered. Explore our selection and benefit from fast shipping and expert support.


