WO2011111008A1 - Système de télémesure pour applications de détection dans des milieux à perte - Google Patents

Système de télémesure pour applications de détection dans des milieux à perte Download PDF

Info

Publication number
WO2011111008A1
WO2011111008A1 PCT/IB2011/050991 IB2011050991W WO2011111008A1 WO 2011111008 A1 WO2011111008 A1 WO 2011111008A1 IB 2011050991 W IB2011050991 W IB 2011050991W WO 2011111008 A1 WO2011111008 A1 WO 2011111008A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
radiator
sensing
casing
ground plane
Prior art date
Application number
PCT/IB2011/050991
Other languages
English (en)
Inventor
Léandre BOLOMEY
Francesco Merli
Eric Meurville
Jean-François Zürcher
Anja Kristin Skrivervik
Original Assignee
Ecole Polytechnique Federale De Lausanne (Epfl)
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 Ecole Polytechnique Federale De Lausanne (Epfl) filed Critical Ecole Polytechnique Federale De Lausanne (Epfl)
Publication of WO2011111008A1 publication Critical patent/WO2011111008A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/273—Adaptation for carrying or wearing by persons or animals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • Telemetry system for sensing applications in lossy media
  • This invention relates generally to sensing devices and their components which are embedded in lossy media and wirelessly controllable.
  • Wireless communications in lossy media encounter growing interest, with applications as telemedicine, ground sensing, remote pipeline sensing, and food quality testing among others.
  • telemedicine allows healthcare professionals to use "networked” and “connected” medical devices for the purposes of evaluating, monitoring, diagnosing and treating patients located in remote locations.
  • Remote patient monitoring is a branch of telemedicine that focuses on providing home health services using telehealth technologies.
  • telehealth technologies Currently focused on chronic disease management, it involves the use of technology that allows a remote interface to collect and transmit patient data between a patient and a healthcare care provider.
  • Chronic diseases occur across the wide spectrum of illness, mental health problems and injuries. They tend to be complex conditions that are often long lasting (over 6 months) and persistent in their effects. Chronic diseases can produce a range of serious complications and have a significant impact on a person's life. They are also among the most costly and burdensome for the healthcare system. Management of chronic illnesses can help reducing the severity of the symptoms and the impact on the patient. The management of chronic diseases can involve medication and/or lifestyle modifications such as diet, exercise and attitude or stress management.
  • the chronic diseases that are currently believed to be the most amenable to remote patient monitoring technologies are:
  • COPD Chronic Obstructive Pulmonary Disease
  • Asthma Asthma
  • pain management may also be concerned by remote monitoring.
  • the Body Sensor Node disclosed here makes use of this strategy.
  • An autonomous implantable Body Sensor Node as defined in claim 1 for monitoring physiologic parameters is provided.
  • the node may also perform therapeutic functions.
  • the node is miniaturized and has been designed to be cylindrical so that it can be implanted into the patient in a minimally invasive way.
  • the node may contain one or several self contained sensing devices or electronics necessary to control a therapeutic device.
  • a self contained implantable system which consists of one or several analog and digital front ends to interface or control any kind of biosensors or therapeutic devices, a programmable microcontroller or Digital Signal Processor, one or several secondary or primary batteries, a prospective battery recharge mechanism, a RF telemetry compliant with MedRadio band or any other Radio band dedicated to this aim, a sealed biocompatible casing featuring an ergonomic shape, an anchoring mechanism to prevent the system to rotate or migrate, and an external control unit.
  • the circuits, the sensing device(s), the batteries, a prospective battery recharge mechanism and the antenna are packaged together and sealed hermetically to the biologic environment.
  • the control unit that is larger remains outside the body but close to the implantable system for minimizing communication distance, typically 2 to 3 meters.
  • the overall system size may vary depending on the power consumption required by the application and on its recharging capabilities.
  • FIG. 1 is a side, and front view of the Body Sensor Node and shows possible casing external shapes
  • FIG. 2 is an exploded view of the Body Sensor Node
  • FIG. 3 presents views of the flexible substrate circuit (unfolded and folded), of the assembly with the matching network circuit and of the chip-on-flip-chip assembly
  • FIG. 4 shows different radiators designs
  • FIG. 5 is an example of a pyramidal structure fitting the cylindrical casing
  • FIG. 6 is an example of a pyramidal structure (isometric view)
  • FIG. 7 is an example of insulating hollow cylinder whose internal surface is metalized to realize part of the ground plane
  • FIG. 8 is an example of antenna radiator shape
  • the Body Sensor Node may include one or more sensors for monitoring a variety of parameters, such as temperature, pressure, acceleration, strain or fluid flow and chemical, electrical or magnetic properties. It may also perform therapeutic functions such as drug delivery or electrical stimulation. Local digital signal processing will allow the node to act smartly and transmit only significant data in an autonomous manner, reducing its power needs and communication bandwidth.
  • the control unit may be placed on the patient's skin (e.g. implemented into a wrist watch) or close to the patient (e.g. contained in a hand held device as a smart phone, a PDA%) or in the neighborhood of the patient (e.g.
  • control unit may be used as a data logger, which relays the recorded data from the body sensor nodes network, towards the patient's environment via cellular, Plain Old Telephone Service (POTS) or IP based networks (e.g. IEEE 802.15 Wireless PAN).
  • POTS Plain Old Telephone Service
  • IP based networks e.g. IEEE 802.15 Wireless PAN
  • the Body Sensor Node is intended to autonomously record every few minutes a physiologic parameter as for instance blood glucose levels in a diabetic patient.
  • the node computes trends towards hyperglycemia and hypoglycemia, and alerts the patient through the external control unit when values are out of the normal glycemia range.
  • the Body Sensor Node may be waked-up and interrogated by the control unit at any time through the sniff mode described hereafter.
  • the second one is governed by very low power consumption in standby mode. It is ideally suited for applications requiring short measurement time and only few measurements per hours.
  • the RF transceiver is kept in its lowest power state that consists in listening in the band dedicated to a wake-up signal (sniff mode).
  • a wake-up signal pr mode
  • a measurement is triggered and the transceiver is waked-up that will further wake-up the other components.
  • the node sends the data to the base station through its RF transceiver.
  • the microcontroller or the Digital Signal Processor sets the RF transceiver in standby mode that will result in powering off all the components of the node.
  • the telemetry circuit consists of a medical RF transceiver, a matching network, a single, dual or multiband antenna operating in the appropriate frequency bands e.g. the Medical Device Radio communication Service band (MedRadio, 401-406 MHz), the Medical Implantable Communication Service (MICS, 402-405 MHz) or the Industrial, Scientific and Medical band (ISM, 2.4-2.5 GHz).
  • the implant is small in size so that it may be positioned to the desired location and implanted using a trocar or a catheter. It may also be implanted surgically by creating a small superficial incision.
  • the Body Sensor Node assembly is shown on FIG. 1 (a) and FIG. 2.
  • the electronic components are assembled onto a two levels bended substrate that is fixed on the antenna structure.
  • the antenna is composed of two parts: the radiator and the ground plane.
  • the ground plane is part of the surface of the holder dimensioned here for up to four SR66 batteries. This results in an asymmetric positioning of the radiator, with respect to the casing axis, and in an enhancement of the directivity of the radiator from inside to outside the body.
  • All the Body Sensor Node components are enclosed in an insulating biocompatible cylindrical housing hermetically sealed featuring an ergonomic shape and an anchoring mechanism to prevent the system to rotate or migrate (FIG. 1 (b)). Beside the batteries, a small empty volume is left free in the housing to place the sensing device(s).
  • the Body Sensor Node comprises two separate circuits. One contains the front end electronics, the programmable microcontroller or Digital Signal Processor and the F transceiver (FIG. 3 (a)) while the other the matching network (FIG. 3 (b)).
  • the two circuits, the sensing device(s), the batteries, the recharge mechanism, and the dual band antenna are packaged together and sealed hermetically to the biologic environment (FIG. 2).
  • the larger control unit remains outside the body but close by the implantable system for minimizing communication distance.
  • the Body Sensor Node disclosed here is generic. As the flexible substrate circuit may support a wide variety of electronic components, some of them may be replaced depending on the application requirements. For instance, a microcontroller instead a Digital signal Processor may be implemented if the computation power required by the application is less demanding. In the same way, the number of primary or secondary batteries may be decreased if the application consumes less power. Changing the battery number will impact the battery holder surface that is also the ground plane of the antenna. The consequence is a little shift in the resonant frequency and a small reduction of the antenna gain. Nevertheless, the Body Sensor Node will still transmit data up to several meters if the battery holder length is not too reduced compared to the primary design. Otherwise, the matching network can be retuned and that is why it has been located on a separate circuit.
  • the two levels flexible substrate circuit is depicted on FIG. 3.
  • the flexible circuit encompasses the front ends, the microcontroller or the Digital Signal Processor, the RF transceiver, the prospective recharge mechanism and the matching network circuit that encompasses the components to act as a filter separating the different working frequencies (e.g. MICS and ISM).
  • the two levels flexible substrate circuit assembly steps are as follows:
  • the final assembly step consists in gluing the first level of the two levels flexible substrate circuit onto the antenna ground plane, in soldering the ground connection via and the antenna pin on the corresponding pad on the matching network circuit;
  • the two levels flexible substrate circuit is folded and glued to maintain in place the bending.
  • the batteries can be inserted into the battery holder and wire connected to the flexible substrate circuit on its top connection pads;
  • the antenna comprises three dimensional conductive elements combining, spherical, cylindrical, planar and vertical strips as illustrated in FIG. 4. This facilitates the current distribution over the structure resulting in an efficient electromagnetic radiation. Additionally, this 3-D metallization without a unique geometrical linear development (like monopoles, dipoles and patches antennas) results in an elliptical polarization of the antenna, which is much more favorable for multipath wireless communications than a linear polarization. This is crucial for the indoor communication with other devices (external or intra-body) as the polarization of the radiated/received electromagnetic field is affected by the presence of the external environment and by living body itself.
  • the antenna structure is formed by two main parts: the ground plane and the radiator as illustrated by the examples of FIG. 4.
  • the ground plane comprises a planar and in a cylindrical hollow conformal design. Possible examples are indicated in FIG. 4.
  • the ground plane as the ground plane can be described as double conformal.
  • the radiator part comprises a specific design, electrically connected to the ground plane, whose particular dimensions enable self-resonance at the desired single or dual working frequencies. Possible examples are indicated in FIG. 4.
  • the single, dual or multi band capabilities improve the communication possibilities of the medical device providing different channels for the data communications (with different propagation properties) and/or allowing power saving modes [US/0229053].
  • Self-resonance allows an efficient radiation of the electromagnetic field and, at the same time, minimizes the use of a matching circuit for the connection to the necessary electronics or to any measurement setup.
  • the feeding of the antenna can be obtained by connecting a signal member to the radiator.
  • the signal member may consist in a metallic stiff connected to the radiator and extending the ground plane (but without any contact with it) at a particular position [US/0216793].
  • a metalized via can be realized in the dielectric substrate at the same position.
  • the metalized via is in electrical contact with the radiator only. This alternative results in an efficient (and mechanically robust) feeding.
  • the feeding of the antenna could consist of a signal member electromagnetically coupled to the antenna without galvanic connection.
  • a general advantage of the present invention in particular of the implantable antenna, is that the radiator design can be arranged in order to obtain a single feeding point for two or more working frequencies. This simplifies and minimizes the circuitry for the connection between the antenna and electronics. Moreover, it is also possible to pre-set the area where the feeding point has to be located in order to minimize the circuitry and the printed circuit size.
  • the radiator consists of a multilayer stacked structure resulting in a peculiar pyramidal design to fit the available volume, as shown in FIG. 4 (c) and FIG. 5.
  • Conductive lines following a spiral design, are realized via chemical etching of metalized substrates with relatively high dielectric constant (such as alumina). The number of substrates is more than two and their pyramidal assembling fits the available volume as shown in FIGs. 5-6.
  • Vertical metallic pieces which could be made of brass, copper and copper-beryllium, provide connection among the metallic strips of each substrate and with the ground plane. Substrates and metallic strips dimensions are dependent on the dual band performances in order to obtain efficient radiation. The largest substrate is double face while the others are as well single face or even not metalized depending on the selected working frequencies.
  • the ground plane is formed by the bottom conductive surface of the largest substrate and the metallization (for instance with the use of a copper foil) of the internal surface of insulating hollow cylinder.
  • the hollow cylinder depicted in FIG. 7, hosts the required power supply.
  • the radiator consists in metallic lines conformal to a cylindrical surface, as shown in FIG. 4 (a-b).
  • the conductive lines can follow different geometry such as spiral or meander in order to obtain self-resonance at the desired working frequencies.
  • a single substrate, machined with the desired shape (examples are reported in FIG. 8) is the support for both the metallic part and the conformal ground plane.
  • the substrate is fully metalized and, subsequently, the peculiar design is realized, for instance, with laser ablation techniques.
  • the radiator consists in a cylindrical and semi-spherical design as indicated in FIG. 4 (d).
  • a single substrate piece supports both the metallic part and the conformal ground plane (examples in FIG. 8).
  • the ground plane comprises a closed geometry. It confines completely the circuitry and power supply exception made for the connections to the antenna and the sensor or therapeutic device.
  • a dedicated matching network circuit is included in the flexible substrate circuit to avoid any impedance discontinuity between the antenna input impedance and the F transceiver.
  • the matching circuit acts as filter separating the working frequencies in a dual or multi band setup.
  • the matching circuit is placed on a separate circuit that is mounted on the main flexible substrate circuit. This improves the flexibility of the implantable telemetry device as the matching circuit characteristic can be modified independently of the main circuitry.
  • a general advantage of the present invention, and in particular of the implantable antenna is the simple testing procedure of the antenna alone. In fact, despite the fact that the antenna is meant to work with the integrated electronics and power supplies, it is very useful to validate its performances avoiding costly full system measurements.

Landscapes

  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

Les communications sans fil dans des milieux à perte suscitent un intérêt croissant notamment dans des applications telles que la télémédecine, la détection d'un défaut de masse, la télédétection dans des canalisations et le contrôle de la qualité des aliments. En guise d'application, l'invention concerne un nœud capteur corporel (BSN) implantable autonome destiné à contrôler des paramètres physiologiques ou à commander des dispositifs thérapeutiques. Le système est miniaturisé et a été doté d'une forme cylindrique de façon à permettre son implantation dans le patient avec effraction minimale. Le système peut contenir un ou plusieurs dispositifs de détection ou composants électroniques autonomes nécessaires à la commande d'un dispositif thérapeutique. Il comporte un ou plusieurs étages d'entrée analogiques ou numériques permettant d'établir une interface avec un type quelconque de capteur ou de dispositif thérapeutique ou de commander celui-ci, un microcontrôleur programmable ou un processeur de signal numérique, une ou plusieurs batteries secondaires ou primaires, un éventuel mécanisme de recharge de batterie(s), un dispositif de télémesure radiofréquence compatible avec la bande du service de radiocommunications des dispositifs médicaux (MedRadio), un boîtier biocompatible étanche présentant une forme ergonomique et un mécanisme d'ancrage empêchant la rotation ou la migration du dispositif, et un module de commande externe. Les dimensions hors-tout du nœud capteur corporel peuvent varier en fonction de la puissance consommée par l'application et de ses capacités de recharge, mais également des dimensions de l'interface avec le capteur ou le dispositif thérapeutique. Plusieurs nœuds mis en réseau peuvent communiquer et échanger des informations avec le module de commande externe et donner lieu à des schémas d'applications biologiques complexes.
PCT/IB2011/050991 2010-03-11 2011-03-09 Système de télémesure pour applications de détection dans des milieux à perte WO2011111008A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00335/10 2010-03-11
CH3352010 2010-03-11

Publications (1)

Publication Number Publication Date
WO2011111008A1 true WO2011111008A1 (fr) 2011-09-15

Family

ID=44278631

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/050991 WO2011111008A1 (fr) 2010-03-11 2011-03-09 Système de télémesure pour applications de détection dans des milieux à perte

Country Status (1)

Country Link
WO (1) WO2011111008A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018011235A1 (fr) * 2016-07-13 2018-01-18 Oslo Universitetssykehus Hf Dispositif d'implant médical avec communication sans fil
FR3071969A1 (fr) * 2017-10-04 2019-04-05 Centre National De La Recherche Scientifique Antenne radioelectrique robuste en impedance et a bas profil
US11258166B2 (en) 2017-10-04 2022-02-22 Bodycap Multi-band low profile radio antenna

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5342408A (en) 1993-01-07 1994-08-30 Incontrol, Inc. Telemetry system for an implantable cardiac device
US5697951A (en) 1996-04-25 1997-12-16 Medtronic, Inc. Implantable stimulation and drug infusion techniques
US5861019A (en) 1997-07-25 1999-01-19 Medtronic Inc. Implantable medical device microstrip telemetry antenna
US6009350A (en) 1998-02-06 1999-12-28 Medtronic, Inc. Implant device telemetry antenna
US6456256B1 (en) 2001-08-03 2002-09-24 Cardiac Pacemakers, Inc. Circumferential antenna for an implantable medical device
US20030216793A1 (en) 2002-05-17 2003-11-20 St. Jude Medical Ab Implantable antenna for use with an implantable medical device
US6708065B2 (en) 2001-03-02 2004-03-16 Cardiac Pacemakers, Inc. Antenna for an implantable medical device
US6804561B2 (en) 2000-10-11 2004-10-12 Alfred E. Mann Foundation For Scientific Research Antenna for miniature implanted medical device
US20040206916A1 (en) 2003-04-15 2004-10-21 Sensors For Medicine And Science, Inc. Printed circuit board with integrated antenna and implantable sensor processing system with integrated printed circuit board antenna
US7016733B2 (en) 2003-04-23 2006-03-21 Medtronic, Inc. Telemetry antenna for an implantable medical device
US7047076B1 (en) 2001-08-03 2006-05-16 Cardiac Pacemakers, Inc. Inverted-F antenna configuration for an implantable medical device
US20060161222A1 (en) 2005-01-15 2006-07-20 Haubrich Gregory J Multiple band communications for an implantable medical device
US20060229053A1 (en) 2005-04-06 2006-10-12 Zarlink Semiconductor Ab Implantable RF telemetry devices with power saving mode
US20070118038A1 (en) 2005-11-23 2007-05-24 Vital Sensors Inc. Implantable device for telemetric measurement of blood pressure/temperature within the heart
US20070260294A1 (en) 2006-05-05 2007-11-08 Alfred E. Mann Foundation For Scientific Research Antenna on ceramic case
WO2009052029A1 (fr) * 2007-10-18 2009-04-23 Intel Corporation Antennes multicouches compactes et incorporées utilisant un empilement de substrats à faible perte pour des applications à multiples bandes de fréquence
US7554493B1 (en) * 2002-07-08 2009-06-30 Boston Scientific Neuromodulation Corporation Folded monopole antenna for implanted medical device
US20090228076A1 (en) * 2008-03-04 2009-09-10 Masoud Ameri Implantable multi-length rf antenna
WO2010051249A1 (fr) * 2008-10-31 2010-05-06 Medtronic, Inc. Antenne miniature à couches multiples pour dispositifs médicaux implantables et procédé de fabrication de celle-ci

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5342408A (en) 1993-01-07 1994-08-30 Incontrol, Inc. Telemetry system for an implantable cardiac device
US5697951A (en) 1996-04-25 1997-12-16 Medtronic, Inc. Implantable stimulation and drug infusion techniques
US5861019A (en) 1997-07-25 1999-01-19 Medtronic Inc. Implantable medical device microstrip telemetry antenna
US6009350A (en) 1998-02-06 1999-12-28 Medtronic, Inc. Implant device telemetry antenna
US6804561B2 (en) 2000-10-11 2004-10-12 Alfred E. Mann Foundation For Scientific Research Antenna for miniature implanted medical device
US6708065B2 (en) 2001-03-02 2004-03-16 Cardiac Pacemakers, Inc. Antenna for an implantable medical device
US7047076B1 (en) 2001-08-03 2006-05-16 Cardiac Pacemakers, Inc. Inverted-F antenna configuration for an implantable medical device
US6456256B1 (en) 2001-08-03 2002-09-24 Cardiac Pacemakers, Inc. Circumferential antenna for an implantable medical device
US20030216793A1 (en) 2002-05-17 2003-11-20 St. Jude Medical Ab Implantable antenna for use with an implantable medical device
US7554493B1 (en) * 2002-07-08 2009-06-30 Boston Scientific Neuromodulation Corporation Folded monopole antenna for implanted medical device
US20040206916A1 (en) 2003-04-15 2004-10-21 Sensors For Medicine And Science, Inc. Printed circuit board with integrated antenna and implantable sensor processing system with integrated printed circuit board antenna
US7016733B2 (en) 2003-04-23 2006-03-21 Medtronic, Inc. Telemetry antenna for an implantable medical device
US20060161222A1 (en) 2005-01-15 2006-07-20 Haubrich Gregory J Multiple band communications for an implantable medical device
US20060229053A1 (en) 2005-04-06 2006-10-12 Zarlink Semiconductor Ab Implantable RF telemetry devices with power saving mode
US20070118038A1 (en) 2005-11-23 2007-05-24 Vital Sensors Inc. Implantable device for telemetric measurement of blood pressure/temperature within the heart
US20070260294A1 (en) 2006-05-05 2007-11-08 Alfred E. Mann Foundation For Scientific Research Antenna on ceramic case
WO2009052029A1 (fr) * 2007-10-18 2009-04-23 Intel Corporation Antennes multicouches compactes et incorporées utilisant un empilement de substrats à faible perte pour des applications à multiples bandes de fréquence
US20090228076A1 (en) * 2008-03-04 2009-09-10 Masoud Ameri Implantable multi-length rf antenna
WO2010051249A1 (fr) * 2008-10-31 2010-05-06 Medtronic, Inc. Antenne miniature à couches multiples pour dispositifs médicaux implantables et procédé de fabrication de celle-ci

Non-Patent Citations (10)

* Cited by examiner, † Cited by third party
Title
E. Y. CHOW, C.-L. YANG, A. CHLEBOWSKI, S. MOON, W. J. CHAPPELL, P. P. IRAZOQUI: "Implantable wireless telemetry boards for in vivo transocular transmission", IEEE TRANS. MICROWAVE THEORY TECH., vol. 56, no. 12, December 2008 (2008-12-01), pages 3200 - 3208, XP011238508, DOI: doi:10.1109/TMTT.2008.2007338
IZDEBSKI P M ET AL: "Conformal Ingestible Capsule Antenna: A Novel Chandelier Meandered Design", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 57, no. 4, 1 April 2009 (2009-04-01), pages 900 - 909, XP011255096, ISSN: 0018-926X *
J. ABADIA, F. MERLI, J.-F. ZÜRCHER, J. R. MOSIG, A. K. SKRIVERVIK: "3D-spiral small antenna for biomedical transmission operating within the mics band", RADIOENGINEERING, vol. 18, no. 4, December 2009 (2009-12-01), pages 359 - 367
J. KIM, Y. RAHMAT-SAMII: "Implanted antennas inside a human body: simulations, designs, and characterizations", IEEE TRANS. MICROWAVE THEORY TECH., vol. 52, no. 8, August 2004 (2004-08-01), pages 1934 - 1943, XP011115726, DOI: doi:10.1109/TMTT.2004.832018
MERLI F ET AL: "Implanted antenna for biomedical applications", ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, 2008. AP-S 2008. IEEE, IEEE, PISCATAWAY, NJ, USA, 5 July 2008 (2008-07-05), pages 1 - 4, XP031824104, ISBN: 978-1-4244-2041-4 *
P. M. IZDEBSKI, H. RAJAGOPALAN, Y. RAHMAT-SAMII: "Conformal ingestible capsule antenna: A novel chandelier meandered design", IEEE TRANS. ANTENNAS PROPAGAT., vol. 57, no. 4, April 2009 (2009-04-01), pages 900 - 909, XP011255096
P. SOONTORNPIPIT, C. FURSE, Y. C. CHUNG: "Design of implantable microstrip antenna for communication with medical implants", IEEE TRANS. MICROWAVE THEORY TECH., vol. 52, no. 8, August 2004 (2004-08-01), pages 1944 - 1951
R. WARTY, M. R. TOFIGHI, U. KAWOOS, A. ROSEN: "Characterization of implantable antennas for intracranial pressure monitoring: Reflection by and transmission through a scalp phantom", IEEE TRANS. MICROWAVE THEORY TECH., vol. 56, no. 10, October 2008 (2008-10-01), pages 2366 - 2376, XP011235166, DOI: doi:10.1109/TMTT.2008.2004254
T. KARACOLAK, A. Z. HOOD, E. TOPSAKAL: "Design of a dualband implantable antenna and development of skin mimicking gels for continuous glucose monitoring", IEEE TRANS. MICROWAVE THEORY TECH., vol. 56, no. 4, April 2008 (2008-04-01), pages 1001 - 1008, XP011205837
W. XIA, K. SAITO, M. TAKAHASHI, K. ITO: "Performances of an implanted cavity slot antenna embedded in the human arm", IEEE TRANS. ANTENNAS PROPAGAT., vol. 57, no. 4, April 2009 (2009-04-01), pages 894 - 899, XP011255093

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018011235A1 (fr) * 2016-07-13 2018-01-18 Oslo Universitetssykehus Hf Dispositif d'implant médical avec communication sans fil
FR3071969A1 (fr) * 2017-10-04 2019-04-05 Centre National De La Recherche Scientifique Antenne radioelectrique robuste en impedance et a bas profil
WO2019069024A1 (fr) * 2017-10-04 2019-04-11 Bodycap Antenne radioelectrique robuste en impedance et a bas profil
US10910701B2 (en) 2017-10-04 2021-02-02 Bodycap Low-profile, impedance-robust radio antenna
US11258166B2 (en) 2017-10-04 2022-02-22 Bodycap Multi-band low profile radio antenna
US11616290B2 (en) 2017-10-04 2023-03-28 Bodycap Multi-band low profile radio antenna
EP3692596B1 (fr) * 2017-10-04 2023-08-30 Bodycap Antenne radioelectrique a bas profil multi-bande

Similar Documents

Publication Publication Date Title
Malik et al. Implantable antennas for bio-medical applications
Kiourti et al. Implantable and ingestible medical devices with wireless telemetry functionalities: A review of current status and challenges
US9399143B2 (en) Antenna for implantable medical devices formed on extension of RF circuit substrate and method for forming the same
Shah et al. Radiative near-field wireless power transfer to scalp-implantable biotelemetric device
US7554493B1 (en) Folded monopole antenna for implanted medical device
EP2662112A1 (fr) Agencements d'antenne pour dispositif thérapeutique implantable
JP2012514418A (ja) フェーズドアレイ共焼成アンテナ構造体およびその形成方法
Patil et al. A review on antennas for biomedical implants used for IoT based health care
Zada et al. Simultaneous wireless power transfer and data telemetry using dual-band smart contact lens
Abbas et al. Miniaturized antenna for high data rate implantable brain-machine interfaces
WO2011111008A1 (fr) Système de télémesure pour applications de détection dans des milieux à perte
Hu et al. Biomedical applications and challenges of in-body implantable antenna for implantable medical devices: A review
Kumar et al. Miniature Archimedean spiral PIFA antennas for biomedical implantable devices
Pournoori et al. Compact quad-band meandered implantable PIFA for wireless brain care
Ferdous et al. Design and performance of miniaturized meandered patch antenna for implantable biomedical applications
Abbas et al. Design and Measurement of a Minuscule-Sized Implantable Antenna for Brain-Machine Interfaces
Manna Rectangular Microstrip Patch Antenna for Medical Applications
Gayen et al. The quest for a miniaturized antenna in the wireless capsule endoscopy application: a review
Patil et al. Microwave antennas suggested for Biomedical Implantation
Hosain et al. Compact stacked planar inverted-F antenna for passive deep brain stimulation implants
Ukkonen et al. Antennas and wireless power transfer for brain‐implantable sensors
Costanzo et al. Implantable Antennas for Endoscopy Applications: Current Review and Challenges
Hu et al. Implantable Devices Based On Ultra-Wideband Miniaturized Implantable Antenna for Biotelemetry Application
WO2023189492A1 (fr) Dispositif médical implantable in vivo
RU2752138C1 (ru) Малогабаритная двухдиапазонная антенна для имплантируемого кардиомонитора

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11716041

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11716041

Country of ref document: EP

Kind code of ref document: A1