WO1998035610A1 - Implantierbare messeinheit zur intrakorporalen messung von patientendaten - Google Patents
Implantierbare messeinheit zur intrakorporalen messung von patientendaten Download PDFInfo
- Publication number
- WO1998035610A1 WO1998035610A1 PCT/DE1998/000406 DE9800406W WO9835610A1 WO 1998035610 A1 WO1998035610 A1 WO 1998035610A1 DE 9800406 W DE9800406 W DE 9800406W WO 9835610 A1 WO9835610 A1 WO 9835610A1
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- WO
- WIPO (PCT)
- Prior art keywords
- unit
- sensor element
- implantable
- measuring unit
- sensor
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/03—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs
- A61B5/031—Intracranial pressure
Definitions
- Implantable measuring unit for intra-orporal measurement of patient data
- the invention relates to an implantable measuring unit for intracorporeal measurement of patient data, in particular intracranial pressure, for mobile use under everyday conditions and an additional application to DE 196 38 813.9 entitled "Intracorporeal measuring system”.
- measuring probes are inserted into the body using a catheter, e.g. m inserted the head (mtrakramell) and directed to places where bio signals have to be measured.
- a catheter e.g. m inserted the head (mtrakramell) and directed to places where bio signals have to be measured.
- the probes When measuring in the skull, the probes must have a very small cross-section and are therefore preferably microsensors which are mounted and contacted in a carrier sleeve.
- the intracranial pressure is measured with a mtra ran ⁇ ell probe.
- the probe is then pulled out and destroyed or, in the case of reusable probes, sterilized and reused with the next patient.
- a so-called shunt system is put in place, by means of which when the brain pressure rises above a fixed value brain water (liquor), the abdominal cavity is drained off so that overpressure i * -, goin is avoided.
- the intracranial pressure measurement can be done both epi- and subdural.
- Epidural means that between the hard meninges
- the intracranial pressure is determined indirectly via the pressure exerted on the meninges by the iquor.
- This measuring location has the advantages that the hard meninges are not pierced, thus avoiding an infection of the meninges, the procedure is much easier, no brain tissue is injured during this measurement, and the sensor can remain at its measuring location for a longer period of time.
- a micro pressure sensor is attached to a metal housing. The sensor is connected to the strands of a cable through which 5 electrical signals are sent to an extracorporeal evaluation unit be directed.
- Another epiduraies system is available from Spiegeibero, in which a balloon catheter is pushed under the C otte C. Depending on the pressure in the brain, the hard meninges on the Ballon transmits, the pressure is passed outside via a line and can be measured extracorporeally there.
- the aforementioned measuring systems require a station e rs admission of the patient to perform pressure measurements because the leads are very sensitive. It is desirable tj edoch, m time intervals mtrakorporal Pres e t ⁇ i normal living conditions of the patient to be measured: and recorded.
- the system described switches the sensors on and off at preset intervals. Then it can happen that suddenly increasing pressures are recorded. In addition, the recording of the measurement data is constant regardless of the relevance of the data. It is not possible to obtain a continuous measurement signal because the data rate of the measured values ZL is low.
- the use of radio signals requires relatively large transmission powers in the vicinity of the brain, which may have harmful side effects.
- the German published patent application DE 43 41 903 AI describes an implantable telemetric endosystem, the external dimensions of which are smaller than 1.0 mm x 1.5 mm x 0.6 mm.
- the implantable measuring system has a sensor connected to a telemetry unit which is inductively coupled to an extracorporeal receiving device.
- the implanted system is inductively supplied with energy from the outside, so that no batteries have to be implanted.
- Amplitude, frequency and pulse width modulation are proposed as data transmission methods. A method for arranging, fastening and wiring the pressure sensor and the telemetry unit is not described.
- the telemetry unit should now be used for trouble-free and patient-friendly operation directly under the skin of pressure / temperature sensor and telemetry unit on a chip is not advantageous, ⁇ a dei sensor must be inserted at defined points in the body, eg in the cerebrospinal fluid under the meninges therefore a separation of sensor and telemetry unit is required.
- FIG. 1 shows a top view of the implantable measuring system
- Fig. 2 Cross section through the implantable measuring system
- Fig. 3 Mobile measuring unit for extracorporeal data transmission and evaluation.
- a new type of brain pressure measurement system is presented as a preferred embodiment. Likewise, the measuring system can also be used for other medical applications.
- FIG. 1 a schematic view of the implantable part of the measuring system that is represented t Eir sensor element 1 with at least one sensor, for example, for printing, is implanted.
- other sensors for example for temperature, can be provided as required.
- the sensor element 1 is ver with a telemetry unit 2 b Andes, ie, implanted with an inductive coupling element, the eoen AIIS.
- the telemetry unit 2 has supplied a power ä ußere coil through which the implanted circuit mt inductive.
- the data measured in sensor element 1 are transmitted with an inductive coupling ar to an evaluation unit. Thereby, it is no t h r me necessary to implant a battery.
- the sensor element 1 and the telemetry unit 2 are applied to a flexible film 3 which has conductor tracks 4 for the electrical connection of the sensor element 1 and the telemetry unit 2.
- the flexible film 3 is very easy to implant because it can be pushed under the skin without twisting or undesirably changing direction. As a result, the hole to be drilled in the skullcap can be designed with a smaller diameter than previously customary.
- only a very small incision is required in the skin, since the film 3 with the sensor element 1 and the telemetry unit 2 applied thereon is very narrow.
- the implantable measuring unit is shown in cross section in FIG. It can be seen that the sensor element 1 and the telemetry unit 2 m of a special design are arranged on opposite sides of the film 3. There is provided a through-l augmentation 5 for the conductor track 4 to guide it to the opposite side.
- the entire implant is covered with a silicone layer 6a for patient protection.
- the sensor element 1 and the telemetry unit 2 are each covered with a layer 6b, 6c for protection.
- the data from t he be supplied via an extracorporeal telemetry unit 7 according to the measurement over a l ä extended period of Aufolinsemheit 8 implantable measuring unit
- the data for example, from there can be a serial section t el l e be transferred to a personal computer 9 or the like or via a data card 10, for example PCMCIA, a portable computer or mobile telephone 11.
- the data are then evaluated in a powerful computing unit and used as an aid to medical diagnostics.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10535236A JP2000508955A (ja) | 1997-02-13 | 1998-02-12 | 患者データの体内測定のための移植可能測定装置 |
US09/155,875 US6083174A (en) | 1997-02-13 | 1998-02-12 | Implantable measuring unit for intracorporal measurement of patient data |
EP98912209A EP0914059A1 (de) | 1997-02-13 | 1998-02-12 | Implantierbare messeinheit zur intrakorporalen messung von patientendaten |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997105474 DE19705474A1 (de) | 1996-09-20 | 1997-02-13 | Implantierbare Meßeinheit zur intrakorporalen Messung von Patientendaten, insbesondere von Hirndrücken, für den mobilen Einsatz unter Alltagsbedingungen |
DE19705474.9 | 1997-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998035610A1 true WO1998035610A1 (de) | 1998-08-20 |
Family
ID=7820113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/000406 WO1998035610A1 (de) | 1997-02-13 | 1998-02-12 | Implantierbare messeinheit zur intrakorporalen messung von patientendaten |
Country Status (5)
Country | Link |
---|---|
US (1) | US6083174A (de) |
EP (1) | EP0914059A1 (de) |
JP (1) | JP2000508955A (de) |
CA (1) | CA2251324A1 (de) |
WO (1) | WO1998035610A1 (de) |
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US8870742B2 (en) | 2006-04-06 | 2014-10-28 | Ethicon Endo-Surgery, Inc. | GUI for an implantable restriction device and a data logger |
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US6585677B2 (en) | 2000-08-30 | 2003-07-01 | John A. Cowan, Jr. | Shunt |
US6588931B2 (en) * | 2000-12-07 | 2003-07-08 | Delphi Technologies, Inc. | Temperature sensor with flexible circuit substrate |
US6963772B2 (en) * | 2002-04-17 | 2005-11-08 | The Board Of Trustees Of The Leland Stanford Junior University | User-retainable temperature and impedance monitoring methods and devices |
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DE10353144A1 (de) * | 2003-11-14 | 2005-06-02 | Cranium Telemetrics Gmbh | Implantat zur Durchführung intrakorpolarer Messungen |
DE10353143A1 (de) * | 2003-11-14 | 2005-07-21 | Cranium Telemetrics Gmbh | Implantat für eine intrakorporale, telemetrische Messung |
US7471986B2 (en) * | 2004-02-20 | 2008-12-30 | Cardiac Pacemakers, Inc. | System and method for transmitting energy to and establishing a communications network with one or more implanted devices |
US8057401B2 (en) | 2005-02-24 | 2011-11-15 | Erich Wolf | System for transcutaneous monitoring of intracranial pressure |
US7435229B2 (en) * | 2004-02-25 | 2008-10-14 | Wolf Erich W | System for transcutaneous monitoring of intracranial pressure (ICP) using near infrared (NIR) telemetry |
EP1765204B1 (de) | 2004-06-07 | 2018-12-26 | Synthes GmbH | Orthopädisches implantat mit sensoren |
US20060000710A1 (en) | 2004-06-30 | 2006-01-05 | Klaus Peter Weidenhaupt | Fluid handling methods |
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US7585280B2 (en) | 2004-12-29 | 2009-09-08 | Codman & Shurtleff, Inc. | System and method for measuring the pressure of a fluid system within a patient |
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US9204812B2 (en) * | 2007-10-31 | 2015-12-08 | DePuy Synthes Products, LLC | Wireless pressure sensing shunts |
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US10244954B2 (en) * | 2013-10-28 | 2019-04-02 | Arkis Biosciences Inc. | Implantable bio-pressure transponder |
JP6296606B2 (ja) * | 2014-05-23 | 2018-03-20 | 国立大学法人山口大学 | 硬膜下センサ |
US11497399B2 (en) | 2016-05-31 | 2022-11-15 | Qura, Inc. | Implantable intraocular pressure sensors and methods of use |
US20190328249A1 (en) * | 2016-12-07 | 2019-10-31 | The Asan Foundation | Intracranial pressure measuring device |
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EP0566354A1 (de) * | 1992-04-17 | 1993-10-20 | Gould Electronics Inc. | Integrierter Sensor mit einer flexiblen Leiterplatte zum Feststellen optischer Impulse |
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NL8502543A (nl) * | 1985-09-17 | 1987-04-16 | Sentron V O F | Langwerpig drukgevoelig element, vervaardigd uit halfgeleidermateriaal. |
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DE19638813C1 (de) * | 1996-09-20 | 1998-03-05 | Sican F & E Gmbh Sibet | Meßvorrichtung für medizinische Anwendungen mit einem intrakorporal einsetzbaren Sensorelement und Verfahren zu deren Herstellung |
-
1998
- 1998-02-12 JP JP10535236A patent/JP2000508955A/ja active Pending
- 1998-02-12 CA CA002251324A patent/CA2251324A1/en not_active Abandoned
- 1998-02-12 WO PCT/DE1998/000406 patent/WO1998035610A1/de not_active Application Discontinuation
- 1998-02-12 EP EP98912209A patent/EP0914059A1/de not_active Withdrawn
- 1998-02-12 US US09/155,875 patent/US6083174A/en not_active Expired - Fee Related
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EP0413588A2 (de) * | 1989-08-17 | 1991-02-20 | Critikon, Inc. | Epiduralsauerstoffsensor |
EP0566354A1 (de) * | 1992-04-17 | 1993-10-20 | Gould Electronics Inc. | Integrierter Sensor mit einer flexiblen Leiterplatte zum Feststellen optischer Impulse |
Non-Patent Citations (1)
Title |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1512428A1 (de) * | 2003-09-05 | 2005-03-09 | CODMAN & SHURTLEFF, INC. | Vorrichtung zum Regeln eines Normaldruck-Hydrocephalus |
US8870742B2 (en) | 2006-04-06 | 2014-10-28 | Ethicon Endo-Surgery, Inc. | GUI for an implantable restriction device and a data logger |
Also Published As
Publication number | Publication date |
---|---|
CA2251324A1 (en) | 1998-08-20 |
EP0914059A1 (de) | 1999-05-12 |
JP2000508955A (ja) | 2000-07-18 |
US6083174A (en) | 2000-07-04 |
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