MIETHKE proSA Manuel Du Patient page 9

| PATIENT MANUAL
GB
x
a)
0
b)
Fig. 8: Ventricle drainage with proSA valve
a) horizontal, b) vertical
TECHNICAL SPECIFICATIONS OF THE VALVE
The proSA is a combination of an adjustable gravi-
tational unit and a differential pressure unit. In cer-
tain cases, the adjustable unit can be implanted on
its own The dimensions are shown in Fig. 9.
2,8 mm
a) 14,7 mm 18 mm
18 mm 18 mm
b)
Fig. 9: proSA, adjustable gravitational unit with
(a) differential pressure unit or with
(b) adjustable differential pressure unit
16
The closer the upper body of the patient is to the
vertical position, the higher is the total opening
pressure of the proSA.
This opening pressure can be changed through the
skin even after the valve has been implanted, wit-
hout necessitating any further surgical intervention.
The proSA is made only of high-grade materials
that have been tested and standardized for use in
implants. The main material is titanium. The robust
housing of the valve ensures that any influences
(e. g. external pressure) on the functioning of the
valve are reduced to an insignificant minimum. This
guarantees a high level of functional safety and a
long service life.
Fig. 10: Schematic cross section of the proSA
(see inner coverpage)
1 titanium casing
2 rotor
3 bow spring
4 weight
5 sapphire ball
Warning note: The shunt system may compri-
se a reservoir that can be pumped. Frequent
pumping can lead to overdrainage and thus
pressure conditions outside of the normal phy-
siological range. As such pumping should only
be carried out by the physician.
PATIENT ID
Each proSA is supplied with an individual patient
ID. The ID is filled out by the attending physician
and contains important information for the follow-
up examinations.
A BRIEF PATIENT GLOSSARY
Anatomy
A guide to the structure of body components
Arachnoid
Connective tissue in the brain that lies between the
dura mater and the pia mater
Catheter
Tube
Cerebrospinal fluid
Watery spinal fluid in the brain
Communicating vessels
Vessels that are connected by a channel
Computed tomography (CT)
Imaging technique whereby „slices" of the body are
recorded with an X-ray scanner
Drainage
Drainage of accumulated fluid
Dura mater
The hardest component of the meninx
Fluid component
Cerebrospinal fluid component
Fontanel
Connective tissue opening in a young infant's skull
that later ossifies
Implant Substance that is placed in the human
body to replace a particular function for a limited
period of time or for the rest of the patient's life
Lumbar puncture
Puncture of the spinal channel at the lower spine
Lumboperitoneal drainage
Drainage of cerebrospinal fluid from the ventricle
of the brain, by way of the region of the lumbar
vertebrae in the abdominal cavity
Meninges
Membrane found in the brain and spine
Meningitis
nflammation of the meninx
PATIENT MANUAL |
Minimally invasive
Minimally infiltrating
Overdrainage
Undesirable outward flow of cerebrospinal fluid
Peritoneum
Membrane that covers the pelvic and abdominal
cavities
Pia mater
Component of the soft meninx containing blood
vessels
Piaarachnoid
Soft component of the meninx that is divided into
the arachnoidea and pia mater
Puncture
Insertion of a hollow needle or a trocar into a vessel
for the purpose of removing fluid
Resorption
Suctioning or removal of material through skin, mu-
cosa, or tissue
Shunt
A passage between two channels – here a catheter
drainage system with an integrated valve
Spinal column
Element of the central nerous system located
within the vertebral channel
Subcutaneous pressure
Pressure beneath the skin
Subdural hematoma
An accumulation of blood between the brain and
cranium
Ventricle of the brain
Intracranial space containing cerebrospinal fluid
Ventricular peritoneal drainage
Drainage of cerebrospinal fluid from the ventri-
cle of the brain directly into the abdominal
cavity (abdominal catheter)
GB
17