
Based on international patent application WO 2016/141977A1, Klein’sche Fields® technology describes a specialized approach to arranging magnetic field structures in medical devices.
The focus is not on the use of individual magnets, but rather on a precisely configured field architecture. Klein’sche Fields are created through a precisely defined arrangement of numerous magnetic poles:
- microscopically fine-structured field architecture
- alternating-pole arrangement
- spatially distributed, deliberately inhomogeneous field structure
- passive system without a power supply or batteries
This results in a complex magnetic field system with a specific field geometry. Unlike conventional magnetic configurations, the focus is not on achieving the highest possible field strength, but rather on the defined spatial structure of the magnetic fields.
Klein’sche FIelds® technology is based on reproducible physical configurations and is used in various products for human and veterinary applications.
Comparability requires evidence
| What really matters | BIORELAX® Klein’sche Fields® |
Comparable products |
|---|---|---|
| Multidirectional pole reversal | ||
| Varying field strengths | ||
| Varying pole spacings and pole areas | ||
| Measurement and test records for the field structure | ||
| CE marking for medical devices on the product | ||
| Pharmacy Central Number / Pharmacy Identification Number (PZN) | ||
| Certified Medical Device manufacturing | ||
| Intended medical use | ||
| Documented clinical benefits | ||
| “Made in Germany” quality | ||
| Traceable Medical Device Serial or Lot Number - Important for Inspection, Complaints, and Safety |
It starts with the field structure. Terms such as "permanent magnet", "multipolar", "alternating polarity", or "uniform magnetic field structure" are not sufficient. What matters is whether the specific field configuration includes multidirectional polarity changes, varying field strengths, as well as varying pole distances and pole surface areas. This is generally not the case with wellness products, which usually have uniform magnetic field structures and therefore do not meet these requirements. Klein'sche Felder meet all of these requirements.
Additional quality characteristics include the CE marking for medical devices and the Pharmaceutical Central Number / pharmacy product code (PZN) on the product, a traceable medical device serial number (each product has its own serial number, or in the case of Klein'sche Felder Pads, a batch number for your safety), certified medical device manufacturing, and Made in Germany quality.
Ultimately, the decisive factor is not the lowest price, but whether a product is capable of delivering the expected benefit at all. For a medical device, the intended purpose and clinical benefit are documented and traceable. If the decisive field structure is not comparable—as is the case with many wellness products, which typically feature a uniform magnetic field structure—the expected support may not be achieved. In such cases, an apparent price advantage may ultimately prove to be the more expensive choice.
Potential consumer deception may occur if magnetic products are advertised using studies or measurement results relating to Klein'sche Felder, even though the products themselves do not contain Klein'sche Felder. In such cases, study and measurement results relating to Klein'sche Felder are transferred to a different product, despite that product lacking the decisive field structure of Klein'sche Felder.
This is precisely why clear CE marking for medical devices is important: it enables traceability, creates transparency, and protects consumers from misleading claims, inaccurate comparisons, and unrealistic expectations.
Compared to electrically powered magnetic field systems: An overview of two different application concepts
Magnetic field systems and Klein'sche Fields differ fundamentally in terms of their structure, handling, and technical implementation. Both concepts are based on magnetic principles, but are used in different forms. Electric magnetic field systems use mats, coils, or cuffs that are connected to a power source. Depending on the device, different electromagnetic field shapes are created, which are used for a defined period of time. While classic magnetic field systems work with electrically generated fields and are usually device-bound, Klein's fields do not require external energy sources and are permanently integrated into various product forms.
| Electrically powered magnetic field systems | Klein’sche Fields® |
|---|---|
| Use with electricity or battery | Use without electricity or battery |
| Device-specific application | Product-integrated application |
| Time-limited use | Permanent use possible |
| Electromagnetic fields | Permanent magnetic, weak, inhomogeneous magnetic fields |
| Large-scale application | Large-scale application and targeted, local placement |
| Depending on the power connection | Location-independent and flexible |
About the inventor: Bernhard Klein

Bernhard Klein, born in Bremen in 1957, acquired his medical expertise through training with the German Armed Forces. From 1983 onwards, he devoted himself extensively to physical applications in the medical technology field.
As a certified medical device manufacturer, he developed an independent technological concept based on polymorphic magnetic structures without an electrical current – the so-called Klein’sche Fields. For many years, he explored magnetic principles and their technical implementation, sharing his knowledge through lectures in Europe and internationally.
Today, the portfolio includes various product solutions using Klein'sche Fields technology, which are handcrafted in Bremen. The aim is to develop high-quality, electricity-free products that impress with their material quality, workmanship, and everyday usability, and are designed for diverse living situations.

