What You Will Learn
- Why medical devices cost so much more than consumer products
- What regulatory approval involves and why it matters
- Why small markets drive higher prices
- How to evaluate whether a device is legitimate
1. A Fair Question
Specialist electrical stimulation devices can cost between £1,500 and £12,000. Consumer TENS units cost £25 to £150. The price difference can seem staggering, and "why is it so expensive?" is one of the most common questions we hear. It deserves an honest answer.
2. It Is Not Profiteering
The price difference reflects three compounding factors, none of which is profit-driven.
Engineering and safety
Devices for denervated muscle must incorporate safety systems that consumer products simply do not have. Current-controlled output ensures consistent delivery regardless of how wet the electrodes are or how well they contact your skin. Balanced biphasic waveforms prevent chemical damage at the electrode-skin surface. Fault-detection circuits shut the device down if something goes wrong. Electrical isolation protects you from dangerous fault currents. These are not marketing features. They are mandatory safety requirements for a device delivering up to 250 mA in 200-millisecond pulses. A consumer device avoids this complexity, which is why it is cheaper and why it cannot do what a specialist device does.
Regulatory requirements
Before a medical device can be sold, it must undergo rigorous assessment. In Europe, this means compliance with the Medical Device Regulation (MDR), which requires review by an independent assessment body, clinical evidence evaluation, manufacturing quality audits, biocompatibility testing of all materials that contact your skin, and ongoing post-market surveillance. In the UK and US, similar processes apply.
This process costs tens of thousands to millions of euros depending on the compelexity and risk classification of the device and can take many months to complete. It is not a one-time expense: ongoing audits, documentation updates, and safety reporting continue for as long as the device is on the market.
A consumer TENS unit marketed as a "wellness device" may avoid medical device classification entirely. This is the most important distinction: it means the consumer device has not been assessed against the safety standards designed to protect you.
Small market
The number of people who need specialist denervation stimulators is small compared to the consumer market for TENS units and "ab toners." Every unit produced carries a proportionally larger share of development, regulatory, and manufacturing costs. This is simple economics: when you cannot spread costs across millions of units, each unit is inevitably more expensive.
3. A Growing Concern: Manufacturer Withdrawal
The increasing regulatory burden is causing some manufacturers to withdraw specialist devices from the market. The investment required for ongoing compliance has reached a point where some manufacturers cannot see a viable return for low-volume specialist devices.
This matters to you directly. When a manufacturer withdraws a device, spare parts become unavailable, servicing ceases, and the treatment programme built around that device is disrupted. In rehabilitation, where you may use a device daily for years, this is not a minor inconvenience.
The regulatory framework exists to protect patients, and that is legitimate. But there is a tension when the cost of compliance reduces the number of devices available to the patients the regulations are meant to protect. Finding the right balance is one of the most pressing challenges in medical device regulation today.
4. How to Evaluate a Device
- Check for medical device certification. In Europe, this means CE marking. In the UK we are adopting a UKCA mark. In the USA, FDA clearance. If a device has no medical device classification, it has not been assessed against safety standards and the manufacturer cannot make medical claims.
- Understand what certification means. It means the device has been assessed for safety and performance. It does not mean it is effective for every condition.
- Be suspicious of devices sold without professional assessment, devices with miraculous claims, devices dramatically cheaper than medical-grade equivalents for the same intended purpose, and devices with no identifiable regulatory status.
Chapter Summary
The cost of specialist medical devices reflects genuine engineering requirements, extensive regulatory compliance, and the economics of serving a small market. Consumer devices are cheaper because they avoid these requirements, which is also why they cannot do what specialist devices do. The regulatory framework protects patients, but increasing compliance costs are driving some specialist manufacturers from the market. When evaluating any device, check for medical device certification and be cautious of products that lack it.