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Title:
頭蓋内圧力を測定する埋め込み型装置
Document Type and Number:
Japanese Patent JP4778040
Kind Code:
B2
Abstract:
The pressure measuring device is a microchip (14) housed in the rigid housing (17). The pressure transmission from the outside to the inside is achieved by a thin biocompatible membrane (21). The pressure-dependent movement acts on the pressure measuring device via transmission elements such as air, noble gases or viscous oil filled in a chamber arranged inside the housing. The volume of the gas is smaller than 0.1 cubic millimeter. The housing interior with a gas displacing wadding is filled up to the gas volume or fluid volume. An independent claim is included for production of a rigid housing with membrane.

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Inventors:
Christoph Misuke
Theodor Lutz
Dirk Shaor
Application Number:
JP2008508153A
Publication Date:
September 21, 2011
Filing Date:
April 27, 2006
Export Citation:
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Assignee:
Ionbond AG Olten
International Classes:
A61B5/00
Domestic Patent References:
JPH1082707A1998-03-31
JPH09126920A1997-05-16
JPH01170824A1989-07-05
JPH07253374A1995-10-03
JPH06148011A1994-05-27
JPH09297084A1997-11-18
JPH02206738A1990-08-16
JPH03141924A1991-06-17
JPS5596141A1980-07-22
JP2004347573A2004-12-09
JP2001159573A2001-06-12
JP2000337983A2000-12-08
JPS5770303A1982-04-30
JP2001511883A2001-08-14
Foreign References:
US3811429A1974-05-21
US4006735A1977-02-08
US4610256A1986-09-09
US4738267A1988-04-19
US4660568A1987-04-28
Attorney, Agent or Firm:
Ryouhei Kobayashi



 
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