Variants; Indication; Intended Purpose; Technical Description - MIETHKE M.scio Mode D'emploi

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VARIANTS

The M.scio is available in four variants with
and without a preconnected distal catheter
(fig. 1).

INDICATION

The M.scio can be used for the pres-
sure-based functional control of the shunt sys-
tem for the treatment of hydrocephalus. The
variants "dome" also perform the functions of
a conventional reservoir.

INTENDED PURPOSE

The M.scio is used for the pressure-based
functional control of shunt systems.

TECHNICAL DESCRIPTION

One option in the treatment of hydrocephalus
is the implantation of a shunt system, which
facilitates the drainage of the cerebrospinal
fluid from the ventricles into a suitable part of
the body (typically the abdominal area). Such
a shunt system consists of multiple catheters
and a valve. Integrating the M.scio into the
shunt system offers the option of performing
a non-invasive functional control of the shunt
system. The basis for this is the measurement
of the pressure and pressure changes by a
measuring cell, which is localised inside the
M.scio. The recording of the determined rela-
tive pressure values allows conclusions to be
drawn in relation to the proper functioning of
the shunt system. The use of the M.scio does
not increase the opening pressure of the shunt
system.
The variants "dome" also perform the func-
tions of a conventional reservoir: The sili-
cone membrane means that they can mea-
sure intraventricular pressure, inject drugs
and control the functioning of the valve. Any
tapping of the silicone membrane should be
performed perpendicular to the reservoir sur-
face with a cannula of max. Ø 0.9 mm. 30
taps are possible without any restrictions. The
biocompatible titanium housing of the mea-
suring cell hermetically protects the electron-
ics. The robust titanium housing prevents any
accidental puncturing of the base of the mea-
suring cell. The volume per pump procedure
is approx. 0.062 ml.
8
The flexible silicone membrane and the higher
overall height means that the variants "dome"
look and feel different to the "flat" variants.
Fig. 1: M.scio with integrated measuring cell (X) in the
following variants
a) dome-angled
b) flat-angled
c) dome-inline
d) flat-inline
M.scio