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UGO BASILE - I
2
INSTRUMENT DESCRIPTION
2.1
Pressure Generator System
A geared motor (1), via a crank-link-gudgeon (2, 3, 4) causes the forward and reverse
motion of a piston (5) into a stationary cylinder (6), see Figure 1 "Pressure Generator".
This pressure generating mechanism is fastened to a sturdy aluminium plate (8).
The pressure is transmitted via an appropriate piping (13) to an expansion vessel (7), a
blow-out valve (9), a pressure gauge (10) and the tail cuff (12) through the pneumatic
connection (11), see Figure 2 "Pneumatic Circuit".
The cuff pressure increases until it exceeds the diastolic pressure and starts to constrict
the tail artery (arteria caudalis). The amplitude of the recorded pulse wave decreases un-
til the artery is completely constricted (ischemic) and the graph becomes a straight line.
When the operator selects the "compression measurement" only, a point indicates on the
paper grid the maximum internal pressure of the artery (systolic pressure).
TALY
Series 58000 Instruction Manual (Rev.1)
Figure 1 "Pressure Generator"
Page 2
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