for intraoperative neurostimulation


Multimodal electric neurostimulator for intraoperative stimulation of nerves, muscles and the cortex:

•    Space-saving compact unit

•    State-of-the-art-touchscreen control

•    Preconfigured user programs

TWISTER® MM comes with preconfigured user programs with matching stimulation parameters for easy operation. All program options are clearly displayed on the touchscreen and the stimulation settings can be directly selected.

When starting the software, you will see relevant operating instructions and cable connections, which cotributes to the intuitive operating concept of TWISTER® MM, our compact stand-alone unit.


for nerve stimulation in ENT, OMS and skull-base surgery as well as peripheral nerve surgery

AVALANCHE® neuromonitors have long been known for their ease of use and reliable functionality. They stand out for their consistently modular concept with up to 8 measuring channels that is an intuitive fit for many surgical disciplines. Further applications can be added later. Our AVALANCHE® SI 2 neuromonitors can localise and assess the functionality of motor nerves, sensory nerves or cerebral structures during surgery. The stimulators required for most clinical situations are built in. Our accessories catalogue lists all necessary electrodes for stimulation and signal acquisition.


for direct stimulation of the cortex in neurosurgery and epilepsy surgery

Direct stimulation of the cortex with the “Cortical Mapping” user program of TWISTER® MM has been designed for localisation of the motor areas in the brain and the speech centre in neurosurgery and epilepsy surgery. The anatomy of the cerebral cortex, which varies between individuals anyways, can be altered by tumours in the area of the nervous system. Getting to the tumour with as little damage to the surrounding tissue as possible and by preserving functional important areas of the brain becomes very difficult without technical assistance. 

With TWISTER® MM, it is possible to visualise a map of the patient’s individual cortex and localise the regions of interest.


for electrical muscle stimulation in paediatric surgery

The “PSARP” user program of TWISTER® MM was specifically developed for electrical stimulation of the sphincter in posterior sagittal anorectoplasty (PSARP) according to Peña and de Vries. 

Stimulation at a frequency of 50 Hz allows the localisation and functional monitoring of muscular structures important to preserving continence and of the access route necessary for reconstruction.

The goal of the treatment is longterm faecal continence and additional quality of life for the mostly very young patients in paediatric surgery.