Medical Trade - Crânio

SOPHY® Mini Monopressure
Valve

The Sophysa Monopressure valve now strikingly rounds off the range of Sophy valves. It takes advantage of both the precision and reliability, which have been widely demonstrated, of the ball-in-cone mechanism of the Sophy adjustable pressure valves, and offers the size and shape characteristics of Sophy Mini valves.

Features:	Benefits:
Each valve is adjusted with an individually calibrated semi-circular spring	Provides high precision and reproducible performance throughout its working life
Ball-in-cone mechanism	Ensures perfect reflux resistance and maintains constant working pressure regardless physiological flow rate variations
Synthetic ruby ball on a stainless steel seat	Makes the valve less sensitive to the protein rate in the CSF
Available with 3 different working pressures : Low (50mm H2O), Medium (110mm H2O) and High (170mm H2O)	Meets each adult or infant clinical needs
Radiopaque titanium dots	Allow X-ray identification of the valve working pressure
Non-distorting Polysulfone structure	Protects the valve from shocks and external pressure variations
Anatomic profile	Especially adapted to the skull's convexity to reduce the risk of skin erosion and for a better comfort

THE SOPHY® ADJUSTABLE
PRESSURE VALVES

Major assets
+Wide range of pressure settings (8 positions from 30 to 200 mm H2O).
+Non-invasive operating pressure adjustment.
+Direct operating pressure reading thanks to a dedicated interactive system.

Sophy® adjustable pressure valve : extensive indications
+Normal Pressure Hydrocephalus (NPH).
+Post hemorrhage hydrocephalusPost hemorrhage hydrocephalus.
+Late diagnosed congenital hydrocephalus.
+Slit Ventricle Syndrome (SVS).
+Arachnoid cyst.

Efficient, and open-ended
treatment, connected
with total and continuous
adaptability

High-precision device of unparalleled simplicity

The principle of the SOPHY® valve resides in the variation in pressure exerted on a ball by a semi-circular spring at various points along its circumference. The spring is attached to a magnetic rotor whose position can be noninvasively altered using an adjustment magnet. A series of indentations allows a variety of positions to be selected, each position representing a different pressure setting.
The valve's ball-in-cone mechanism
maintains the selected pressure constant without significant drift through the time.

High
pressure (H)
200mm H2O

Medium
pressure (M)
110mm H2O Low
pressure (L)

Low
pressure (L)
30mm H2O

A new light and self-contained adjustment kit

+With its central recess, the new pressure selector enables the compass and the magnet to be positioned exactly in relation to the valve. Its internal graduated dial allows a precise reading of the 8 positions as well as the associated values of operating pressure (in mmH2O). The outer dial of the selector shows the programming range of the magnet.

+The powerful magnet (1 Tesla) ensures a precise adjustment of the rotor.

+The new compass quickly finds its equilibrium, and works perfectly despite ± 20° angles of dip (automatic compensation for the angles of dip). In addition, there is a simplified reading procedure: all that is required is to place the compass on the selector and to read the exact value of the selected operating pressure from it, in the extension of the red needle.

A quick, non-invasive and reproducible adjustement & control procedure

	+Easy and rapid current position reading (30 mmH2O = L)
	+Changing pressure by rotating the magnet to thedesired position
	+Instantaneous reading of the new pressure (200 mmH2O = H) by simple positioning of the compass on the selector