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JPS52142783

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DESCRIPTION JPS52142783
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of the present invention,
and FIG. 2 is a perspective view of another modification. 1 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · , 6 · · · · · · · · · · · · · · · · insulator.
[Detailed description of the invention] This invention is a tiger that measures the vibration and
echo of the living body! ス ン / ー i directly gti-Je · living body 0 measured part ′ ′ ′ ′ can
movement and acoustics, e + iui * fflfa *, a = t * eafb% cEIlh9>. To measure the movement of the
living body, to measure the sound, and the noise. It is performed for many phenomena such as
pulse wave, pulse, apical pulse, respiration or labor pain, and it is important for medicine (1) J2// 27 / J, and the transducer used for this is the mechanism A thing to make a normal air
conduction microphone dense, an acceleration type pregnancy ピ pin ア ノ (((<close thing, ii! One
that contacts and displaces an if-body (PZT, Ronon-El salt) or piezoelectric such as Strecheno is
used to convert it into a photoacidic compound using the optical conversion mechanism. All of
these conventional transducers have complicated structures, are weak to mechanical impact, and
are easily destructed. In particular, these conventional tigers / squeezers have a structure in
which the contact surface of a solid (metal or synthetic fat) is pressure-layered on the skin
surface, and the mechanical impedance seen from this contact surface is the same as the
mechanical impedance of living skin. The mechanical impedance of the human chest skin surface,
for example, was largely inconceivable in that there was a large difference and the movement of
the attachment surface of the living body changed significantly as compared to the undressed
shoulder due to mounting the transducer 1 In the case of a diameter of 21, the weight is 9 grams
and 50 grams (2) An effective paste is 1.8t with stiffness, stiffness 2. lX10 '' dyn / m, out of
resistance 4.2 X IQ 3 dyn-sec / 3 al. In the case of a conventional transducer having the same
contact surface of metal or synthetic resin, it is very difficult to be able to directly access.
Therefore, when the conventional transducer is attached, the vibration of the living body. There
is no accurate, efficient transmission of sound to the transducer. The present invention solves all
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the drawbacks of the prior art, and uses a piezoelectric high molecular weight membrane to
directly stimulate pregnancy from the living body and to use a tiger / speaker to detect sound.
fJ'QE electrophotographic molecular film is used as the contact surface of the transducer 7. −、
。 □。 イ、8. +−□。 工 #, lI, @ 77, l, 21. ,. . , ヮ 4. エヵ1. ∼42.。 In addition to the
conventional ones, it is possible to obtain very good transducers with mechanical in vivo / smano
/ g in vivo as compared with conventional ones.
Furthermore, the present invention is simple in structure 7 and is maintenance-friendly and is
resistant to one mechanical impact, and in addition, it is easy to form a shape that conforms to
various shapes on the living body surface (3), and has excellent properties. It is obtained. The
present invention will be described below with reference to the drawings. Fig. 1 shows a pulse
wave pickup, and 1 is a cylindrical case made of a conductor serving both as a protection of the
pickup and the ground side city, which can be practically used and obtained with a diameter of
about 15 throats and an outer diameter of 25 mm. . 2 co-operates with the opening edge of the
case 1 with the @ side of the Wang Cheng Nao molecular film 3 to fix 1) and hold the electrode
Jllk while holding the metal seat with the terminal 4 for taking out the electric signal 1g,---2 In
the plate, a round ridge-like projection 2a is formed on the toe surface-. 5 is an air gap provided
so as not to disturb the vibration of the commercial juice membrane. An appropriate braking
substance may be lighted in this space 1, and the disc 6 is provided with the insulating portion 6
a around the driver II and attached to the case 1, and the washer 2 is pushed through the
insulator 7. A suitable strain is given to Senden molecular model 3. (1) 1 '-1 11 I3 as an example.
Expanded about 3.5 times at 50 ° C & poly fluoride bi = 1? , Tri lyso / can be used, and the
piezoelectric constant g31 = 150'S × 10-3 to 3 '/ g. In addition, the diameter of the contact
portion with a thickness of 30 μm and biological body □ ′ (4) is 15%, and double-sided nickel
deposition is applied. Using this pulse wave pick-up, the pulse wave maximum value I-1: \ ■ 'one:
卆 5077 1 to 100 mV output can be obtained from the measurement of the arterial pressure of
the pulse segment, and the waveform is also a blood vessel,'! ,-In agreement with the internal
pressure waveform. Figure 2 (tc, for use in measurement of blood, W, etc. of breathing, positions,
or L-limb / limb) / King of a transducer as shown in Figure 1 The inside is hunt form so that it is
exposed, and this is attached to the chest, abdomen or upper extremity, and the extremity: ・
This wound is attached to the skin ・ Piezoelectric squeeze molecular film 8 directly on the skin
III′j ′ ′ It is configured to be in contact. ト ラ ン ス ジ ー ト ラ ン ス ト ラ ン ス ト ラ ン ス ト
ラ ン ス ト ラ ン ス ト ラ ン ス ト ラ ン ス ト ラ ン ス 11 11 11 上 上 上 上 上 上 上 上 上 上 上
上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上
上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上
上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上上
上 上 上; D pulse wave is observed. In this regard, the pulse wave differential waveform is
significantly improved as compared with the case where a conventional transducer is used.
Piezoelectric polymer lI! The transformer (5) according to the present invention, which has a
structure that directly contacts the vibration part of the living body, takes advantage of the
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mechanical impedance of the polymer F-membrane to make the mechanical imaging dynamic
connection with the living body extremely good. The effect is remarkable, for example, L can be
made to be small, L is also simple in structure, strong against external force such as impact, and
easy to handle.
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