NR6 Information & Data

The NR6 calculates nasal airway resistance by measuring nasal flow and the pressure producing that flow.
NR6 can be used for active anterior or posterior rhinomanometry, with either the Broms or standard technique as approved by the International Standardisation Committee. The resultant curves are displayed in the standard 4 phase format.

In addition it will calculate and display either the Rohrer coefficients or the Broms angle relating to the resultant curves.

Key Benefits

  • Diagnostic facilities
  • Desktop or Laptop PC capability
  • Clinical and Research versions available
  • Database system with % change calculation
  • Pre/Post challenge or operative comparisons
  • Can be interfaced through a USB PC connection
  • Software for Windows XP, Vista, 7 or 8 is available
  • Includes all approved techniques, including “4 quadrant high resolution”
  • Plus active anterior, posterior, standard, Broms angle or resistance values
  • Plus the new Vertex and Effective resistance values, in the research version

Two versions of the instruments are available,­ the NR6 Clinical and the NR6 Clinical/Research -the difference between them being the hardware and software facilities described below:-

Hardware/Software requirements
The NR6 will work with any PC running Windows XP, Vista, Windows 7 or Windows 8, which has a USB port. Any printer with a Windows driver should be suitable.

We can supply full systems including laptops, medical grade desktop PC’s & printers or the components needed to allow you to connect the NR6 to your own PC and printer.

Both NR6 models provide:-
a) An individual patient database, which holds patient details and stores test result files, in chronological order, for ease of display, printout and comparison.

b) Files can be saved to disk and recalled for comparison, r-examination or printout.

c) Tests can be performed using one of a number of techniques and reassessed by changing the reference or threshold points.

d) Test results can be compared with ones previously stored. This comparison is presented in the form of a graphical display with percentage change figures produced, and is available for printout.

e) A diagnostic facility, to help determine if nasal valve collapse has occurred, has been added to the standard system. This provides information on the flow at various points on the curve and calculates ratios and percentage increases at these points.

The NR6 Clinical/Research model additionally provides:-
All the above features plus:-

Flow and pressure curves displayed in a y/t format, with the calculation of Vertex and Effective resistance and their logarithmic values.

A batch test facility, which allows data runs to be repeated, and mean, standard deviation and coefficient of variance calculations to be displayed and printed. This “best clinical practice” facility helps ensure top grade measurement accuracy.

Data exportation facilities are built in to the Clinical/Research model, which allows “raw” data in a number of formats to be provided for statistical analysis and other purposes.

Capability to be called from a patient database and return values to the database.

A Rhinocal unit, which allows the calibration of the NR6 to be checked.

Accessories and Consumables Supplied:-
1 x adult anterior mask NR/AAM
1 x adult posterior mask NR/PAM
1 x child anterior mask NR/ACM
1x child Posterior Mask NR/PCM
1 x 4 part tubing NR3/T
5 x tip connectors NR/TIPCON
1 x anterior tube connector NR/ATCON
1 x metre posterior tubing NR/POSTUB
1 x metre anterior tubing NR/ANTUB
1 x hole punch NR/HP
1 x roll of anterior tape NR/TAPE
1 x flowhead NR/FL
1 x anti viral filter NR/FILTER
4 x large foam inserts NR/LARGE
4 x standard foam inserts NR/STD
4 x small foam inserts NR/SMALL
1 x Rhinocal, calibration checking unit NR/CAL (Clinical/Research version only).

Additional Options
A compatible Acoustic Rhinometer, the A1 is also available, either as a free standing instrument, or linked to the NR6, making a combined unit running NARIS software. This provides rhinometric and rhinomanometric measurements, with mixed results saved to a subject database or output to a common report.

A USB footswitch, with which to initiate a measurement, can also be supplied.