Article 01-124-20

20cm
Named for the French neurologist who helped shape modern reflex examination technique, the DEJERINE Hammer carries a design that has stayed relevant in clinical practice for good reason. At 20cm, it strikes a practical balance between reach and control, giving clinicians enough leverage to deliver a consistent tap on the patellar or Achilles tendon without needing excessive arm movement. The broad, flat head associated with this pattern is built for a firm but controlled percussion stroke, which helps produce a clear, observable reflex response rather than an ambiguous twitch that is easy to misread.

Where this pattern proves useful in daily practice:

Delivering firm, consistent percussion for deep tendon reflex testing

Supporting neurological screening during general physical exams

Assisting inpatient assessments where reflex changes need close tracking

Providing a dependable option for teaching hospitals introducing reflex testing technique

As one of NextEdge Surgical’s diagnostic instruments, this hammer fits naturally into general practice, neurology clinics, and university teaching settings where students are learning to distinguish a normal reflex from one that warrants further investigation. Its straightforward design also means there is little to go wrong with routine use, which matters for instruments that see repeated handling across many exam rooms in a single day. Add this diagnostic instrument to your facility supply.