Braun HNS 11 user manual Technical description

Technical description 6

6.Refer to the Safety information section before using the Stimu- plex® HNS 11 on a patient.

Any instrument behaving abnormally must not be put into operation. Contact customer service.

Electromedical equipment may only be repaired by the manu- facturer or by an organization expressly authorized by the manu- facturer.

The Stimuplex® HNS 11 nerve stimulator is designed for reliable identification and location of nerves for local anaesthesia.

It generates consistent square pulses with selectable frequency, selectable pulse width and continuously adjustable stimulation current.

The range of adjustment of the pulse current from 0 to 5 mA peak- to-peak can be reduced to 0 to 1 mA with the ”mA(max)” button. This 1 mA range allows precise adjustments for extremely thin and technically sophisticated needles.

The stimulation frequency and the pulse width can be varied for different applications. The Stimuplex® HNS 11 nerve stimulator offers the facility for selecting a frequency of either 1 Hz or 2 Hz can be chosen together with pulse widths of 0.1 ms, 0.3 ms or 1.0 ms.

When the Stimuplex® HNS 11 is switched off, all set parameters remain stored.

As a visual and audible check, the ▲ symbol and a tick occur in time with the stimulation. Stimulation current flowing through the electrodes is signalled by the ~ symbol next to the ▲ and a + sign in front of the value for current in the display (in operating mode).

To conserve battery power, the LEDs on the button panel for the operating modes are switched off after approx. 8 seconds. They are reactivated by pressing any button. This does not change the operating mode setting, which can only be changed when the LEDs are lit.