WO1996026668A1 - Systeme de detection implantable pour determiner des concentrations de substances dans des organismes vivants - Google Patents
Systeme de detection implantable pour determiner des concentrations de substances dans des organismes vivants Download PDFInfo
- Publication number
- WO1996026668A1 WO1996026668A1 PCT/DE1996/000356 DE9600356W WO9626668A1 WO 1996026668 A1 WO1996026668 A1 WO 1996026668A1 DE 9600356 W DE9600356 W DE 9600356W WO 9626668 A1 WO9626668 A1 WO 9626668A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substance
- sensor system
- capillary membrane
- living organisms
- implantable sensor
- Prior art date
Links
- 239000000126 substance Substances 0.000 title claims abstract description 64
- 210000001601 blood-air barrier Anatomy 0.000 claims abstract description 43
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 10
- 239000008103 glucose Substances 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 238000002513 implantation Methods 0.000 claims abstract description 5
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 claims abstract description 4
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims abstract description 4
- 239000004809 Teflon Substances 0.000 claims description 14
- 229920006362 Teflon® Polymers 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 8
- 108090000790 Enzymes Proteins 0.000 claims description 7
- 102000004190 Enzymes Human genes 0.000 claims description 7
- 244000043261 Hevea brasiliensis Species 0.000 claims description 7
- 239000012491 analyte Substances 0.000 claims description 7
- 229940088598 enzyme Drugs 0.000 claims description 7
- 229920003052 natural elastomer Polymers 0.000 claims description 7
- 229920001194 natural rubber Polymers 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- 239000004697 Polyetherimide Substances 0.000 claims description 6
- 239000008280 blood Substances 0.000 claims description 6
- 210000004369 blood Anatomy 0.000 claims description 6
- 229920001601 polyetherimide Polymers 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 238000001690 micro-dialysis Methods 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 4
- 238000005842 biochemical reaction Methods 0.000 claims description 4
- 229920005549 butyl rubber Polymers 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920002301 cellulose acetate Polymers 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 4
- 229940079593 drug Drugs 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 229920002492 poly(sulfone) Polymers 0.000 claims description 4
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 239000004627 regenerated cellulose Substances 0.000 claims description 4
- 239000000645 desinfectant Substances 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 claims description 3
- 241001631457 Cannula Species 0.000 claims description 2
- 102100026735 Coagulation factor VIII Human genes 0.000 claims description 2
- 108010015776 Glucose oxidase Proteins 0.000 claims description 2
- 101000911390 Homo sapiens Coagulation factor VIII Proteins 0.000 claims description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000003242 anti bacterial agent Substances 0.000 claims description 2
- 229940088710 antibiotic agent Drugs 0.000 claims description 2
- 238000006911 enzymatic reaction Methods 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920002338 polyhydroxyethylmethacrylate Polymers 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims 2
- 229920002379 silicone rubber Polymers 0.000 claims 2
- 239000004945 silicone rubber Substances 0.000 claims 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims 1
- 239000007975 buffered saline Substances 0.000 claims 1
- 229920000570 polyether Polymers 0.000 claims 1
- 241001465754 Metazoa Species 0.000 abstract description 2
- 210000004204 blood vessel Anatomy 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 239000000560 biocompatible material Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 229920001483 poly(ethyl methacrylate) polymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229940126601 medicinal product Drugs 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6865—Access ports
-
- 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 or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/14525—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using microdialysis
- A61B5/14528—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using microdialysis invasively
-
- 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 or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4836—Diagnosis combined with treatment in closed-loop systems or methods
- A61B5/4839—Diagnosis combined with treatment in closed-loop systems or methods combined with drug delivery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/686—Permanently implanted devices, e.g. pacemakers, other stimulators, biochips
Definitions
- Implantable sensor system for determining substance concentrations in living organisms
- the invention relates to an implantable sensor system for determining substance concentrations in living organisms and to methods for its production.
- Such sensors can be used for the continuous measurement of the concentration of glucose, lactate and other analytes in the tissue or blood vessels of humans, animals and other organisms.
- ERSATZBLAH (REGEL26) Rajotte, HP Baltes: A biocompatible enzyme electrode for continuous in vivo glucose monitoring in whole blood, Sensors and Actuators, Bl, 561-564, 1990).
- microdialysis systems with an implantable microdialysis needle are used to determine the glucose concentration in the patient (see, for example: FJ Schmidt et al .: Calibration of a wearable glucose sensor, The International Journal of Artificial Organs, Vol. 15, No. 1, pp 055-061, 1992).
- Body fluids using an implantable dialysis probe using an implantable dialysis probe.
- a disadvantage of the prior art is that the known enzyme electrodes have low enzyme stability when in contact with blood or other body fluids and therefore do not have a sufficient lifespan for use as fully implantable sensors. There are also problems of biocompatibility with regard to the materials used. There is also a morphological incompatibility, i.e. a contact problem between the often very small sensor surface and relatively inhomogeneous tissue.
- ERSATZBLAH ERSATZBLAH (REGEL26)
- the known microdialysis systems are suitable for short-term use on patients, but do not offer the possibility of full implantation of the overall system.
- the invention is therefore based on the object of integrating substance-detecting sensors into an implantable sensor system such that the sensor system has the following properties:
- the substance-recognizing surface of at least one sensor is connected to at least one micro-tube-like permeable and flexible capillary membrane, which makes good contact with the living organism after the implantation,
- REPLACEMENT BLA ⁇ (RULE 26) that the capillary membrane is also filled with a substance which allows the transport of the analyte which has entered the inside of the capillary membrane to the substance-recognizing sensor surface, and that the capillary membrane is connected to at least one septum by means of a channel in a holder in such a way that with the help of an injection needle, substances can be added to and removed from the interior of the capillary membrane through the septum.
- the sensor is connected to a signal processing electronics and a battery for energy supply and is housed together with a telemetry device in a housing which is connected to the holder.
- the telemetry device is used for data exchange with external signal electronics. This can be found in a patient's wristwatch, for example.
- the advantages achieved by the invention are, in particular, that there is no direct contact between the substance-recognizing sensor surface and the living organism.
- the capillary membrane is very thin and flexible and can therefore make good contact with the tissue of the living organism. All biocompatible materials which are sufficiently permeable for the substance to be measured can be used for the capillary membrane.
- the septa can be used to remove or add substances to the capillary membrane.
- REPLACEMENT BLA ⁇ (RULE 26) membrane can also be rinsed. In this way, calibration fluids, medication, disinfectants or other substances can be flushed through the interior of the capillary membrane with the help of two injection needles. This means that recalibrations of the sensor take place during long-term operation and substances in the capillary membrane can be renewed.
- FIG. 1 shows a simple embodiment of the sensor system in plan view and FIG. 2 shows the same in section.
- the substance-recognizing surface 1, 1 'of at least one sensor 2, 2' is connected to at least one micro-tube-like permeable and flexible capillary membrane 3, 3 ', which makes good contact with the living organism after the implantation.
- the sensor 2, 2 ' All embodiments that are suitable for measuring the concentration of the desired analyte are possible for the sensor 2, 2 '. These are, for example, potentiometric, ion-selective electrodes that are used to determine blood electrolyte concentrations. Likewise, amperometric sensors can be used to measure blood gas concentrations (for example dissolved oxygen, CO 2, etc.), but also enzyme electrodes (for example for measuring glucose concentrations) and other biosensors. The electrical sensor signal is supplied to signal electronics in a known manner.
- potentiometric, ion-selective electrodes that are used to determine blood electrolyte concentrations.
- amperometric sensors can be used to measure blood gas concentrations (for example dissolved oxygen, CO 2, etc.), but also enzyme electrodes (for example for measuring glucose concentrations) and other biosensors.
- the electrical sensor signal is supplied to signal electronics in a known manner.
- the capillary membrane 3, 3 ' has a length between 0.1 mm and 1 m, preferably a few cm.
- REPLACEMENT BLA ⁇ (RULE 26) knife is a few 100 ⁇ m to a few mm.
- the wall thickness of the capillary membrane is a few ⁇ m to a few 100 ⁇ m.
- All materials which are permeable to the substance to be measured can be used for the capillary membrane.
- Such materials are e.g. Polycarbonate, cellulose acetate, cellulose hydrate, regenerated cellulose, cuprophan, Thomapor, polyacrylonitrile, polysulfone, polyamide, polyethyl methacrylate, Teflon.
- the capillary membrane can also be coated with other substances such as polyurethane, silicone or others which increase the biocompatibility.
- the capillary membrane is filled with a substance 4 which facilitates the transport of the outside, i.e. Analytes which have entered the interior of the capillary membrane 3, 3 'from the tissue of the living organism to the substance-recognizing sensor surface 1, 1' are permitted. In the simplest case, this transport takes place by diffusion.
- the substance 4 can consist of liquid materials such as sodium chloride solution, buffered sodium chloride solution and other solutions. Medicinal products such as heparin, antibiotics or disinfectants can also be added to these solutions, which have a stabilizing effect on the interface between the capillary membrane and living tissue and substance 4 itself.
- the capillary membrane is by means of a channel 11,
- REPLACEMENT BLA ⁇ (RULE 26)
- the holder 5, 5 'can consist of all biocompatible materials such as polyurethane, polyethylene, titanium or others.
- the septum 6, 6 ' can be made of all known biocompatible materials such as silicone, natural rubber, natural rubber with a Teflon coating, Viton-TefIon, silicone-rubber-Teflon, PTFE-coated Teflon, butyl rubber, polyetheride ( PEI) exist.
- the septum has a diameter between a few mm and a few cm. Its thickness is a few 100 ⁇ m to a few mm.
- the system can also be constructed in such a way that the brackets 5, 5 'are connected to a common carrier plate (not shown).
- FIGS. 3 and 4 show a sensor system which is expanded compared to the illustration in FIG. 1.
- the sensor 2, 2 ' is connected to a signal processing electronics 7 and a battery 8 for energy supply and is housed together with a telemetry device 9 in a housing 10 which is connected to the holder 5, 5'.
- the telemetry device 9 is used for data exchange with external signal electronics. This can be found in a patient's wristwatch, for example.
- the housing 10 can consist of the same material as the holder 5, 5 '.
- FIG. 5 shows a section of a sensor system in plan view (FIG. 5a) and in section (FIG. 5b), the sensor of which is modified compared to the representations from FIGS.
- ERSATZBLAH ERSATZBLAH
- the channel 11 in the holder 5 ′′ is in contact with a membrane 12 which is permeable to the substance to be measured.
- a membrane 12 On the side of the membrane 12 opposite the channel 11 there is a substance 13 which enters into a chemical or biochemical reaction with the analyte diffused through the membrane.
- the sensor 17 measures the change in the composition of the substance 13 caused by the chemical and biochemical reaction.
- the substance 13 can be removed and replaced with an injection needle through at least one septum 15.
- the membrane 12 is e.g. made of polycarbonate, cellulose acetate, cellulose hydrate, regenerated cellulose, cuprophan, Thomapor, polyacrylonitrile, polysulfone, polyamide, polyethyl methacrylate, HEMA, poly-HEMA or other suitable substances.
- the substance 13 consists of a saline solution, KCl solution or another inorganic or organic solution, to which the enzyme glucose oxidase is added.
- the oxygen concentration or H : 0 -.- concentration changed by the enzymatic reaction can be measured with the aid of a sensor 17, which is designed as an oxygen sensor or H 2 0 -, - sensor.
- the sensor signal is supplied to signal electronics in a known manner.
- the septum 15 can be made from all known biocompatible materials such as silicone, natural rubber, natural rubber with a Teflon coating, Viton-TefIon, silicone
- REPLACEMENT BLA ⁇ (RULE 26) Con-rubber TefIon, PTFE-coated Teflon, butyl rubber, polyetherimide (PEI) exist.
- FIG. 6 shows a sensor system in the top view, shown in section in FIG. 7, which is expanded by a pump 16 compared to the embodiment of FIG. 3.
- This pump 16 pumps the liquid substance 4, which is located in the capillary membrane in the circuit through the channel 11 "and past the sensors 2, 2 '.
- This has the advantage that the analyte that gets into the interior of the capillary membrane is transported to the sensor more quickly than would be possible by diffusion alone.
- the pump 16 can operate both in continuous operation and in interval operation.
- FIGS. 8 and 9 A very simple embodiment of part of a sensor system is shown in FIGS. 8 and 9. Here is at least one micro tube-like permeable and flexible capillary membrane 3 ′′ with one
- Substance 4 ' which allows the transport of the analyte which has entered the inside of the capillary membrane 3 "from the outside and which connects the capillary membrane to at least one septum 6'" with the aid of the channel 11 '"in a holder 5'" that substances can be added and removed from the inside of the capillary membrane through the septum with the aid of an injection needle.
- This arrangement can be implanted as part of a sensor system. With the help of two injection needles or cannulas, the tissue of the living organism and then the septa 6 '"are pierced from the outside, so that there is an inflow and an outflow for the liquid substance 4' through the capillary membrane
- This arrangement can be used in the same way as a microdialysis needle and works with a measuring system arranged outside the organism. With the help of this measuring system, the substance 4 'is pumped through the capillary membrane and the concentration of substances such as glucose, lactate, blood electrolytes etc. measured.
- a device according to FIGS. 8 and 9 has the particular advantage that it can be used as a preliminary stage for fully implantable sensor systems for clinical examinations and system developments and optimizations.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Surgery (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Medicinal Chemistry (AREA)
- Emergency Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8525962A JPH11501234A (ja) | 1995-03-01 | 1996-02-27 | 生物体内の物質の濃度を決定する埋め込み型センサ・システム |
EP96904719A EP0812147A1 (fr) | 1995-03-01 | 1996-02-27 | Systeme de detection implantable pour determiner des concentrations de substances dans des organismes vivants |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995107107 DE19507107C1 (de) | 1995-03-01 | 1995-03-01 | Implantierbares Sensorsystem zur Bestimmung von Stoffkonzentrationen in lebenden Organismen |
DE19507107.7 | 1995-03-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996026668A1 true WO1996026668A1 (fr) | 1996-09-06 |
Family
ID=7755335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/000356 WO1996026668A1 (fr) | 1995-03-01 | 1996-02-27 | Systeme de detection implantable pour determiner des concentrations de substances dans des organismes vivants |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0812147A1 (fr) |
JP (1) | JPH11501234A (fr) |
DE (1) | DE19507107C1 (fr) |
WO (1) | WO1996026668A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006122554A2 (fr) | 2005-05-17 | 2006-11-23 | Radiometer Medical Aps | Detecteur d'enzymes pourvu d'une couche membranaire de couverture recouverte par un polymere hydrophile |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6331163B1 (en) * | 1998-01-08 | 2001-12-18 | Microsense Cardiovascular Systems (1196) Ltd. | Protective coating for bodily sensor |
DE10119036C1 (de) * | 2001-04-18 | 2002-12-12 | Disetronic Licensing Ag | Tauchsensor zur Messung der Konzentration eines Analyten mit Hilfe einer Oxidase |
JP2005525139A (ja) * | 2001-10-23 | 2005-08-25 | メドトロニック ミニメド インコーポレイテッド | 非血管センサ埋め込みのための方法およびシステム |
DE10241071B4 (de) * | 2002-09-05 | 2010-01-14 | Aesculap Ag | Vorrichtung zum Lokalisieren bestimmter Substanzen in einem tierischen oder menschlichen Körper |
US7736309B2 (en) | 2002-09-27 | 2010-06-15 | Medtronic Minimed, Inc. | Implantable sensor method and system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0183351A1 (fr) * | 1984-09-28 | 1986-06-04 | Vladimir Feingold | Dispositif implantable d'administration de médicaments par perfusion |
WO1986007150A1 (fr) * | 1985-05-21 | 1986-12-04 | Brian John Bellhouse | Dispositif de test de liquides |
EP0243854A1 (fr) * | 1986-05-02 | 1987-11-04 | Siemens Aktiengesellschaft | Appareil implantable étalonnable pour la mesure d'une substance corporelle |
EP0245073A2 (fr) * | 1986-05-06 | 1987-11-11 | The Regents Of The University Of California | Système complet de surveillance du glucose avec module de captage implantable pour la mesure à distance |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3700119A1 (de) * | 1987-01-03 | 1988-07-14 | Inst Diabetestechnologie Gemei | Implantierbarer elektrochemischer sensor |
DE3933373A1 (de) * | 1989-10-06 | 1991-04-18 | Thomas Hoell | Blutsensorsystem fuer die analytische in-vivo bestimmung eines blutbestandteils |
DE4405149C2 (de) * | 1993-02-25 | 1998-11-26 | Daimler Benz Aerospace Ag | Anordnung zum Bestimmen der Konzentration von Inhaltsstoffen in Körperflüssigkeiten |
-
1995
- 1995-03-01 DE DE1995107107 patent/DE19507107C1/de not_active Expired - Fee Related
-
1996
- 1996-02-27 EP EP96904719A patent/EP0812147A1/fr not_active Withdrawn
- 1996-02-27 JP JP8525962A patent/JPH11501234A/ja active Pending
- 1996-02-27 WO PCT/DE1996/000356 patent/WO1996026668A1/fr not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0183351A1 (fr) * | 1984-09-28 | 1986-06-04 | Vladimir Feingold | Dispositif implantable d'administration de médicaments par perfusion |
WO1986007150A1 (fr) * | 1985-05-21 | 1986-12-04 | Brian John Bellhouse | Dispositif de test de liquides |
EP0243854A1 (fr) * | 1986-05-02 | 1987-11-04 | Siemens Aktiengesellschaft | Appareil implantable étalonnable pour la mesure d'une substance corporelle |
EP0245073A2 (fr) * | 1986-05-06 | 1987-11-11 | The Regents Of The University Of California | Système complet de surveillance du glucose avec module de captage implantable pour la mesure à distance |
Non-Patent Citations (1)
Title |
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P. ATANASOV: "Biosensor for Continuous Glucose Monitoring", BIOTECHNOLOGY AND BIOENGINEERING INCLUDING: SYMPOSIUM BIOTECHNOLOGY IN ENERGY PRODUCTION AND CONSERVATION., vol. 43, no. 3, 5 February 1994 (1994-02-05), NEW YORK US, pages 262 - 266, XP000417475 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006122554A2 (fr) | 2005-05-17 | 2006-11-23 | Radiometer Medical Aps | Detecteur d'enzymes pourvu d'une couche membranaire de couverture recouverte par un polymere hydrophile |
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DE19507107C1 (de) | 1996-08-14 |
JPH11501234A (ja) | 1999-02-02 |
EP0812147A1 (fr) | 1997-12-17 |
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