EP2872043A1 - Procédé de fabrication d'un instrument à capteur et instrument à capteur - Google Patents

Procédé de fabrication d'un instrument à capteur et instrument à capteur

Info

Publication number
EP2872043A1
EP2872043A1 EP13755986.0A EP13755986A EP2872043A1 EP 2872043 A1 EP2872043 A1 EP 2872043A1 EP 13755986 A EP13755986 A EP 13755986A EP 2872043 A1 EP2872043 A1 EP 2872043A1
Authority
EP
European Patent Office
Prior art keywords
sensor
wire
wires
matrix
electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13755986.0A
Other languages
German (de)
English (en)
Inventor
Stefan FÖRTSCH
Rainer Kuth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2872043A1 publication Critical patent/EP2872043A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/273—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the upper alimentary canal, e.g. oesophagoscopes, gastroscopes
    • A61B1/2736—Gastroscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1468—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means
    • A61B5/1473—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means invasive, e.g. introduced into the body by a catheter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/42—Detecting, measuring or recording for evaluating the gastrointestinal, the endocrine or the exocrine systems
    • A61B5/4222—Evaluating particular parts, e.g. particular organs
    • A61B5/4233—Evaluating particular parts, e.g. particular organs oesophagus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/42—Detecting, measuring or recording for evaluating the gastrointestinal, the endocrine or the exocrine systems
    • A61B5/4222—Evaluating particular parts, e.g. particular organs
    • A61B5/4238—Evaluating particular parts, e.g. particular organs stomach
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/42—Detecting, measuring or recording for evaluating the gastrointestinal, the endocrine or the exocrine systems
    • A61B5/4222—Evaluating particular parts, e.g. particular organs
    • A61B5/4255—Intestines, colon or appendix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/681—Component parts, details or accessories; Auxiliary operations
    • B29C70/683—Pretreatment of the preformed part, e.g. insert
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/74—Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
    • B29C70/882—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding
    • B29C70/885—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding with incorporated metallic wires, nets, films or plates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/12—Manufacturing methods specially adapted for producing sensors for in-vivo measurements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/12—Manufacturing methods specially adapted for producing sensors for in-vivo measurements
    • A61B2562/125—Manufacturing methods specially adapted for producing sensors for in-vivo measurements characterised by the manufacture of electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/16—Details of sensor housings or probes; Details of structural supports for sensors
    • A61B2562/164—Details of sensor housings or probes; Details of structural supports for sensors the sensor is mounted in or on a conformable substrate or carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B29L2009/005—Layered products coated
    • B29L2009/008—Layered products coated metalized, galvanized
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/753—Medical equipment; Accessories therefor

Definitions

  • a possible cause of discomfort for a patient in the upper gastrointestinal tract is infection with Helicobacter pylori bacteria.
  • the object of the invention is to specify a simple method for producing a sensor instrument and a corresponding sensor instrument.
  • the ammonia-sensitive sensor comprises at least two wires or wires each embedded in a nonconductive matrix, with the two embedded wires being adhesively bonded to one another, for example, for setting a fixed distance from one another.
  • two electrically conductive wires or wires are embedded at a predetermined distance in the non-conductive matrix and subsequently one end of the wires is exposed by grinding. So instead of embedding the wires individually in the matrix and then attaching them together in a second manufacturing step to form the sensor, the
  • Wires in this case in a manufacturing step with a predetermined distance from each other embedded in the matrix are wires in this case in a manufacturing step with a predetermined distance from each other embedded in the matrix.
  • the sensor instrument and in particular the sensor is preferably deburred.
  • the wires used for the sensor preferably consist of a relatively simple and inexpensive stainless steel or copper alloy and are expediently coated in one process step, in particular galvanically. The coating is preferably made only at the exposed ends. Coating minimizes the use of high quality and expensive materials.
  • a wire for forming an electrode is coated with silver and a wire for forming a reference electrode with gold or platinum for each sensor.
  • the materials used here may be biocompatible. should be tibel and even on contact with gastric acid should not dissolve substances that could cause an intolerance to the patient or even a poisoning phenomenon. For this reason as well, polymethyl methacrylate, for example, is used for the non-conductive matrix.
  • Polyoxymethylene, polycarbonate or a thermosetting plastic used from an epoxy resin and a hardener used from an epoxy resin and a hardener.
  • a sensor instrument manufactured with the aid of the method described here has, at the end of the production process, an ammonia-sensitive sensor which is used to examine the
  • FIG 4 shows in an enlarged view the unfinished sensor after coating one of the ends of the wires with silver, in an enlarged view the unfinished sensor after coating the other end with gold, in an enlarged view the finished sensor after passivation of one of the ends of the wires and in FIG an enlarged view of the finished sensor after coating one of the ends of the wires with a protective varnish.
  • the method described below serves as an example for producing a sensor instrument 2, as shown in FIG. This is constructed from an evaluation unit 4 with an optical display A and a catheter probe 6 with an ammonia-sensitive sensor 8.
  • the coating is carried out by means of a galvanic process, during which the second, not to be coated in this sub-process stainless steel wire 10 is coated with a protective lacquer. After the galvanic coating and the removal of the protective lacquer, a state of the catheter probe 6 is then given, as indicated in FIG. In addition, a production step is provided, in which, analogously to the preceding process step, the second stainless steel wire 10 is provided with a gold layer 22 for forming a reference electrode 20, again providing the electrode 16, which is not to be coated in the context of this process step, with a protective lacquer.
  • the electrode 16 is passivated by immersion in a hydrochloric acid bath, thereby forming a silver chloride layer 24 on the surface of the electrode 16. This situation is shown in FIG.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Chemical & Material Sciences (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Optics & Photonics (AREA)
  • Endocrinology (AREA)
  • Physiology (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un instrument à capteur (2) comprenant un capteur (8) sensible à l'ammoniac qui est conçu pour analyser la muqueuse de l'œsophage, de l'estomac et du duodénum d'un patient où des batteries prolifèrent. Selon ce procédé, au moins un fil (10) électroconducteur est incorporé dans une matrice (12) non conductrice et une extrémité du fil (10) est ensuite dénudée par meulage.
EP13755986.0A 2012-08-21 2013-08-19 Procédé de fabrication d'un instrument à capteur et instrument à capteur Withdrawn EP2872043A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012214801.9A DE102012214801A1 (de) 2012-08-21 2012-08-21 Verfahren zur Herstellung eines Sensorinstruments und Sensorinstrument
PCT/EP2013/067242 WO2014029736A1 (fr) 2012-08-21 2013-08-19 Procédé de fabrication d'un instrument à capteur et instrument à capteur

Publications (1)

Publication Number Publication Date
EP2872043A1 true EP2872043A1 (fr) 2015-05-20

Family

ID=49084976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13755986.0A Withdrawn EP2872043A1 (fr) 2012-08-21 2013-08-19 Procédé de fabrication d'un instrument à capteur et instrument à capteur

Country Status (5)

Country Link
US (1) US20150238129A1 (fr)
EP (1) EP2872043A1 (fr)
CN (1) CN104684476A (fr)
DE (1) DE102012214801A1 (fr)
WO (1) WO2014029736A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015180754A1 (fr) * 2014-05-26 2015-12-03 Siemens Aktiengesellschaft Électrode de mesure destinée à un détecteur pour l'analyse d'un milieu de mesure quant à la présence de helicobacter pylori

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT395915B (de) * 1991-06-27 1993-04-26 Avl Verbrennungskraft Messtech Innenelektrode einer polarographischen elektrode
US5507289A (en) * 1993-09-16 1996-04-16 Synectics Medical, Inc. System and method to diagnose bacterial growth
US8364229B2 (en) * 2003-07-25 2013-01-29 Dexcom, Inc. Analyte sensors having a signal-to-noise ratio substantially unaffected by non-constant noise
DE102010006969A1 (de) 2010-02-05 2011-08-11 Siemens Aktiengesellschaft, 80333 Gastroskop
JP5295390B2 (ja) * 2009-02-17 2013-09-18 シーメンス アクチエンゲゼルシヤフト 胃内視鏡
DE102009009291A1 (de) * 2009-02-17 2010-08-19 Siemens Aktiengesellschaft Gastroskop

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014029736A1 *

Also Published As

Publication number Publication date
WO2014029736A1 (fr) 2014-02-27
CN104684476A (zh) 2015-06-03
US20150238129A1 (en) 2015-08-27
DE102012214801A1 (de) 2014-02-27

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