CA2425795A1 - Method and system for propelling and controlling displacement of a microrobot in a blood vessel - Google Patents

Method and system for propelling and controlling displacement of a microrobot in a blood vessel Download PDF

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Publication number
CA2425795A1
CA2425795A1 CA002425795A CA2425795A CA2425795A1 CA 2425795 A1 CA2425795 A1 CA 2425795A1 CA 002425795 A CA002425795 A CA 002425795A CA 2425795 A CA2425795 A CA 2425795A CA 2425795 A1 CA2425795 A1 CA 2425795A1
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Canada
Prior art keywords
microrobot
force
field
blood vessel
gradient
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.)
Granted
Application number
CA002425795A
Other languages
French (fr)
Other versions
CA2425795C (en
Inventor
Sylvain Martel
Mathieu Jean-Baptiste
Yahia L'hocine
Gilles Beaudoin
Gilles Soulez
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Ecole Polytechnique de Montreal
Centre Hospitalier de lUniversite de Montreal CHUM
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Individual
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Priority to US10/417,475 priority Critical patent/US7962194B2/en
Priority to CA2425795A priority patent/CA2425795C/en
Publication of CA2425795A1 publication Critical patent/CA2425795A1/en
Application granted granted Critical
Publication of CA2425795C publication Critical patent/CA2425795C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00156—Holding or positioning arrangements using self propulsion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/70—Manipulators specially adapted for use in surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/70—Manipulators specially adapted for use in surgery
    • A61B34/72—Micromanipulators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/70—Manipulators specially adapted for use in surgery
    • A61B34/73—Manipulators for magnetic surgery

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Robotics (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Surgical Instruments (AREA)

Abstract

The present invention relates to a method and system for propelling and controlling displacement of a microrobot through a patient's blood vessel. The microrobot is formed with a body containing field-of-force responsive material wherein, in response to a field of force, the material undergoes a force in the direction of a gradient of the field of force. The microrobot is positioned in a blood vessel for displacement through the blood vessel, and a field of force with a given gradient is generated and applied to the microrobot in view of propelling the microrobot through the blood vessel in the direction of the gradient of the field of force. A direction and amplitude of the gradient of the field of force is calculated to thereby control displacement of the microrobot through the patient's blood vessel.

Claims (8)

1. A method of propelling and controlling displacement of a microrobot through a patient's blood vessel, comprising:
forming the microrobot with a body containing field-of-force responsive material wherein, in response to a field of force, the material undergoes a force in the direction of a gradient of the field of force;
positioning the microrobot in a blood vessel for displacement through the blood vessel; and generating a field of force with a given gradient and applying the field of force to the microrobot in view of propelling the microrobot through the blood vessel in the direction of the gradient of the field of force, wherein generating the field of force comprises calculating a direction and amplitude of the gradient of the field of force to thereby control displacement of the microrobot through the patient's blood vessel.
2. A method as defined in claim 1, comprising forming the microrobot with a shell of the field-of-force responsive material.
3. A method as defined in claim 1, wherein generating the field of force comprises generating a magnetic field and wherein the body of the microrobot contains magnetic material.
4. A microrobot system, comprising:
a microrobot for displacement through a patient's blood vessel, the microrobot being formed with a body containing field-of-force responsive material wherein, in response to a field of force, the material undergoes a force in the direction of a gradient of the field of force; and a generator of a field of force with a given gradient for application to the microrobot in view of propelling the microrobot through the blood vessel in the direction of the gradient of the field of force, wherein the generator comprises a calculator of a direction and amplitude of the gradient of the field of force to thereby control displacement of the microrobot through the patient's blood vessel.
5. A microrobot system as defined in claim 4, wherein the microrobot comprises a shell of the field-of-force responsive material.
6. A microrobot system as defined in claim 4, wherein the field of force is a magnetic field and wherein the material of the microrobot comprises magnetic material.
7. A microrobot system as defined in claim 4, wherein the generator comprises a magnetic resonance imaging system.
8. A microrobot system as defined in claim 4, wherein the generator comprises a calculator of the trajectory of the microrobot through the blood vessel.
CA2425795A 2003-04-15 2003-04-15 Method and system for propelling and controlling displacement of a microrobot in a blood vessel Expired - Lifetime CA2425795C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/417,475 US7962194B2 (en) 2003-04-15 2003-04-15 Method and system for propelling and controlling displacement of a microrobot in a blood vessel
CA2425795A CA2425795C (en) 2003-04-15 2003-04-15 Method and system for propelling and controlling displacement of a microrobot in a blood vessel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/417,475 US7962194B2 (en) 2003-04-15 2003-04-15 Method and system for propelling and controlling displacement of a microrobot in a blood vessel
CA2425795A CA2425795C (en) 2003-04-15 2003-04-15 Method and system for propelling and controlling displacement of a microrobot in a blood vessel

Publications (2)

Publication Number Publication Date
CA2425795A1 true CA2425795A1 (en) 2004-10-15
CA2425795C CA2425795C (en) 2012-03-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2425795A Expired - Lifetime CA2425795C (en) 2003-04-15 2003-04-15 Method and system for propelling and controlling displacement of a microrobot in a blood vessel

Country Status (2)

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US (1) US7962194B2 (en)
CA (1) CA2425795C (en)

Families Citing this family (12)

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US8948841B2 (en) * 2005-06-23 2015-02-03 Polyvalor, Limited Partnership MR-tracking based on magnetic signature selective excitation
BR112012010126A2 (en) 2009-11-02 2016-12-06 Pulse Therapeutics Inc fluid obstruction treatment systems, therapeutic and circulatory fluid flow increase and circulatory fluid flow increase and circulatory system drug diffusion methods and their uses.
US20110215888A1 (en) * 2009-11-12 2011-09-08 University Of Utah Wireless control of microrobots
KR101272156B1 (en) * 2011-08-31 2013-06-05 전남대학교산학협력단 A Micro-Robot System For Intravascular Therapy And Controling Method Thereof
US8803643B2 (en) * 2011-12-19 2014-08-12 University Of Utah Research Foundation Control of magnetically actuated tools in any position using a rotating magnetic source
US9905347B2 (en) 2012-06-13 2018-02-27 Polyvalor, Limited Partnership Aggregation and control of magneto-responsive entities
JP6235601B2 (en) * 2012-11-07 2017-11-22 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Magnetic element for MPI device
US9869734B2 (en) 2013-04-09 2018-01-16 General Electric Company System and method for manufacturing magnetic resonance imaging gradient coil assemblies
KR101619931B1 (en) * 2014-06-10 2016-05-13 재단법인대구경북과학기술원 A Capsule type microrobot and method of use
DE102015224085B3 (en) 2015-12-02 2017-05-11 Bruker Biospin Mri Gmbh Method for determining the position of a ferromagnetic particle and associated MRI system
DE102017209373A1 (en) 2017-06-02 2018-12-06 Bruker Biospin Mri Gmbh Fast method for determining the position of a ferromagnetic particle or a bundle of ferromagnetic particles with MRI systems
CN113164207A (en) 2018-12-17 2021-07-23 苏黎世联邦理工学院 Method and system for propelling and controlling displacement of a micro-robot in a space having walls

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JPS5519124A (en) * 1978-07-27 1980-02-09 Olympus Optical Co Camera system for medical treatment
GB8408127D0 (en) * 1984-03-29 1984-05-10 Nyegaard & Co As Contrast agents
US5125888A (en) * 1990-01-10 1992-06-30 University Of Virginia Alumni Patents Foundation Magnetic stereotactic system for treatment delivery
DE69839051T2 (en) * 1997-03-07 2009-01-15 Disc-O-Tech Medical Technologies, Ltd. PERCUT BONE SYSTEMS AND SPINAL STABILIZATION, MOUNTING AND REPAIR
US6304769B1 (en) * 1997-10-16 2001-10-16 The Regents Of The University Of California Magnetically directable remote guidance systems, and methods of use thereof
US6157853A (en) * 1997-11-12 2000-12-05 Stereotaxis, Inc. Method and apparatus using shaped field of repositionable magnet to guide implant
US6298259B1 (en) * 1998-10-16 2001-10-02 Univ Minnesota Combined magnetic resonance imaging and magnetic stereotaxis surgical apparatus and processes
US6148823A (en) * 1999-03-17 2000-11-21 Stereotaxis, Inc. Method of and system for controlling magnetic elements in the body using a gapped toroid magnet
GB0029158D0 (en) * 2000-11-29 2001-01-17 Oxford Instr Plc Catheter steering apparatus and method
US6544163B2 (en) * 2000-12-28 2003-04-08 Scimed Life Systems, Inc. Apparatus and method for controlling a magnetically controllable embolic in the embolization of an aneurysm
US6939290B2 (en) * 2002-02-11 2005-09-06 Given Imaging Ltd Self propelled device having a magnetohydrodynamic propulsion system

Also Published As

Publication number Publication date
US7962194B2 (en) 2011-06-14
US20040210128A1 (en) 2004-10-21
CA2425795C (en) 2012-03-27

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