WO2005114820A3 - Implantable ultrasonic transducer systems and methods - Google Patents

Implantable ultrasonic transducer systems and methods Download PDF

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Publication number
WO2005114820A3
WO2005114820A3 PCT/US2005/017124 US2005017124W WO2005114820A3 WO 2005114820 A3 WO2005114820 A3 WO 2005114820A3 US 2005017124 W US2005017124 W US 2005017124W WO 2005114820 A3 WO2005114820 A3 WO 2005114820A3
Authority
WO
WIPO (PCT)
Prior art keywords
array
transducers
ultrasonic
micromachined
tissue
Prior art date
Application number
PCT/US2005/017124
Other languages
French (fr)
Other versions
WO2005114820A2 (en
Inventor
Jingkuang Chen
Original Assignee
Univ Georgia Res Found
Jingkuang Chen
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 Univ Georgia Res Found, Jingkuang Chen filed Critical Univ Georgia Res Found
Publication of WO2005114820A2 publication Critical patent/WO2005114820A2/en
Publication of WO2005114820A3 publication Critical patent/WO2005114820A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • 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
    • A61B5/685—Microneedles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
    • G01S15/8915—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array
    • G01S15/8925—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array the array being a two-dimensional transducer configuration, i.e. matrix or orthogonal linear arrays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52079—Constructional features
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00345—Micromachines, nanomachines, microsystems
    • 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
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/028—Microscale sensors, e.g. electromechanical sensors [MEMS]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0031—Implanted circuitry
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/06—Measuring blood flow

Abstract

A miniaturized micromachined ultrasonic transducer 100 is disclosed herein for implantation in tissue to achieve high-resolution images. An array of ultrasonic transducers 102 is fabricated in a carrier 700 using integrated circuits (IC) technology. The carrier 700 is micromachined into a needle shape with a cross-section small enough for the array of ultrasonic traducers 102 to be inserted into tissue for high- resolution medical imaging. The length of the probe shank portion 106 of the transducer 100 is dependent on the quantity of transducers 102 to be arranged in the array. Compared with commercial intravascular ultrasonic devices, this micromachined ultrasonic imager is small enough to allow monolithic integration of a flexible silicon ribbon cable 504 for electrical interconnection from the array of transducers to external electronic. With the silicon ribbon cable 504 as the connector for the array of transducers 102, a catheter is not necessary.
PCT/US2005/017124 2004-05-14 2005-05-16 Implantable ultrasonic transducer systems and methods WO2005114820A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57117904P 2004-05-14 2004-05-14
US60/571,179 2004-05-14

Publications (2)

Publication Number Publication Date
WO2005114820A2 WO2005114820A2 (en) 2005-12-01
WO2005114820A3 true WO2005114820A3 (en) 2006-05-18

Family

ID=35429101

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/017124 WO2005114820A2 (en) 2004-05-14 2005-05-16 Implantable ultrasonic transducer systems and methods

Country Status (1)

Country Link
WO (1) WO2005114820A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012103108A1 (en) * 2011-01-28 2012-08-02 Medtronic, Inc. Physiological condition determination based on pressure wave produced by an implantable medical device housing
US9889472B2 (en) * 2014-03-21 2018-02-13 Koninklijke Philips N.V. CMUT device and manufacturing method
US20210045690A1 (en) * 2018-03-01 2021-02-18 Universitat Basel Vizerektorat Forschung Neural probe for electrostimulation or recording and fabrication process for such a probe
AU2019263404A1 (en) * 2018-05-03 2020-11-19 Butterfly Network, Inc. Pressure port for ultrasonic transducer on CMOS sensor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659270A (en) * 1996-05-16 1997-08-19 Motorola, Inc. Apparatus and method for a temperature-controlled frequency source using a programmable IC
US5983612A (en) * 1996-11-01 1999-11-16 Textron, Inc. Removable battery tray system for an electrically powered bunker rake
US6291927B1 (en) * 1995-09-20 2001-09-18 Board Of Trustees Of The Leland Stanford Junior University Micromachined two dimensional array of piezoelectrically actuated flextensional transducers
US6320239B1 (en) * 1996-10-30 2001-11-20 Siemens Aktiengesellschaft Surface micromachined ultrasonic transducer
US6700314B2 (en) * 2001-06-07 2004-03-02 Purdue Research Foundation Piezoelectric transducer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6291927B1 (en) * 1995-09-20 2001-09-18 Board Of Trustees Of The Leland Stanford Junior University Micromachined two dimensional array of piezoelectrically actuated flextensional transducers
US5659270A (en) * 1996-05-16 1997-08-19 Motorola, Inc. Apparatus and method for a temperature-controlled frequency source using a programmable IC
US6320239B1 (en) * 1996-10-30 2001-11-20 Siemens Aktiengesellschaft Surface micromachined ultrasonic transducer
US5983612A (en) * 1996-11-01 1999-11-16 Textron, Inc. Removable battery tray system for an electrically powered bunker rake
US6700314B2 (en) * 2001-06-07 2004-03-02 Purdue Research Foundation Piezoelectric transducer

Also Published As

Publication number Publication date
WO2005114820A2 (en) 2005-12-01

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