JPS63158308U

JPS63158308U -

Info

Publication number: JPS63158308U
Application number: JP5197987U
Authority: JP
Priority date: 1987-04-06
Filing date: 1987-04-06
Publication date: 1988-10-17
Also published as: JPH0346729Y2

Description

[Brief explanation of the drawing]

第１図：本考案に係るＬＰシヤント用脳内圧計
のセンサユニツトを示す縦断正面図、第２図：同
センサユニツトの正面方向からみた縦断斜視図、
第３図：同センサユニツトの平面図、第４図：同
センサユニツトの側面図、第５図：使用状態にお
ける同脳内圧計の構成図、第６図、第７図：同セ
ンサユニツトを人体に埋設した状態の全体構成図
。尚図面中、１：ＬＰシヤント用脳内圧計、２：
導入口、３：導出口、４：センサユニツト、５：
感圧部、６：流路。 Fig. 1: A longitudinal sectional front view showing the sensor unit of the LP shunt intracerebral manometer according to the present invention, Fig. 2: A longitudinal sectional perspective view of the sensor unit as seen from the front direction.
Figure 3: Plan view of the sensor unit, Figure 4: Side view of the sensor unit, Figure 5: Configuration diagram of the intracerebral manometer in use, Figures 6 and 7: The sensor unit as shown in the human body. A diagram of the overall configuration of the buried state. In the drawings, 1: LP shunt intracerebral pressure gauge, 2:
Inlet, 3: Outlet, 4: Sensor unit, 5:
Pressure sensitive part, 6: flow path.

Claims

[Claims for Utility Model Registration] (1) An unpowered resonant circuit consisting of a coil and a capacitor in a housing having an inlet and an outlet for cerebrospinal fluid, and a resonant frequency of the unpowered resonant circuit that is controlled by the action of the cerebrospinal fluid to increase the intracerebral pressure. It is equipped with a sensor unit buried inside the human body that houses a pressure sensitive part that changes according to the size, and a grid dipmeter circuit placed outside the human body to detect the fluctuation of the resonance frequency and measure the intracerebral pressure. In an intracerebral manometer equipped with a measurement section that determines the An intracerebral pressure meter for LP shunt characterized by: (2) The brain for an LP shunt according to claim 1, wherein the pressure sensitive part faces substantially perpendicularly to the cerebrospinal fluid flow path communicating with the inlet and the outlet. Internal pressure gauge. (3) The pressure sensitive part has a core fixed to the outer end surface that moves forward and backward with respect to the coil, and airtightly partitions the unpowered resonant circuit and the cerebrospinal fluid flow path, and the inside communicates with the inlet and the outlet. The intracerebral pressure meter for LP shunt according to claim 1, which is characterized in that it uses a bellows.