EP1054627A1 - ULTRASCHALL-WANDLER MIT ZUBEHöR - Google Patents

ULTRASCHALL-WANDLER MIT ZUBEHöR

Info

Publication number
EP1054627A1
EP1054627A1 EP98933741A EP98933741A EP1054627A1 EP 1054627 A1 EP1054627 A1 EP 1054627A1 EP 98933741 A EP98933741 A EP 98933741A EP 98933741 A EP98933741 A EP 98933741A EP 1054627 A1 EP1054627 A1 EP 1054627A1
Authority
EP
European Patent Office
Prior art keywords
acoustic
probe
probe according
window
main chamber
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Withdrawn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
EP98933741A
Other languages
English (en)
French (fr)
Inventor
Jean-Marc Gregoire
Dany Carre
Frédéric PEYRE
Jack Elasri
Léandre Pourcelot
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.)
Pierre Fabre Dermo Cosmetique SA
Original Assignee
Pierre Fabre Dermo Cosmetique SA
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 Pierre Fabre Dermo Cosmetique SA filed Critical Pierre Fabre Dermo Cosmetique SA
Publication of EP1054627A1 publication Critical patent/EP1054627A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4444Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
    • A61B8/4461Features of the scanning mechanism, e.g. for moving the transducer within the housing of the probe
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18Methods or devices for transmitting, conducting or directing sound
    • G10K11/26Sound-focusing or directing, e.g. scanning
    • G10K11/35Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams
    • G10K11/352Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams by moving the transducer

Definitions

  • the present invention relates to a probe for noiammenl 1 cchographic exploration usable mainly in dermatology, provided with an electroacoustic monotransducleur animated back and forth in an acoustic coupling medium
  • Mechanical probes for ultrasound exploration generally comprise a tubular body can be gripped by hand, comprising a chamber in which esl installs an electroacoustic transducer To this tubular body.
  • a probe nose provided with a window for the passage of the acoustic waves emitted by the iiansducleur
  • a coupling medium such as a homogeneous liquid is placed in the chamber
  • This liquid constitutes the medium of propagation towards the window of the probe nose of the ultrasonic waves emitted by the electroacoustic transducer
  • the window of the probe nose is generally in the form of a more or less thin wall impermeable to the coupling liquid but permeable according to various degrees to the acoustic wave
  • the splitting of the probe / probe is in the form of an opening
  • the reason for this provision is that it is often in that the exploration at shallow depth requires an ultrasonic wave of a frequency ee cl that this wave is very easily attenuated by the wall of the window
  • the majority of the pathologies are located on the face in zones which can ent be angular like the ne
  • a wall for example in the form of a membrane for the constitution of the acoustic fenetry (solution, preferred by practitioners) comes up against the problem of attenuation of the wave and echoes of repetitions between the window and the acoustic sensor
  • These repetitive echoes are often the source of artefacts, masquanl l useful information and making it impossible to image interpretation
  • This problem can had solved if the acoustic beam is oblique to the window as the sign has the anterior Da ns this case.
  • the reflection echo is no longer rem ove v ers the acoustic sensor and the artefacl no longer appears on the image formed.
  • users find it difficult to position the probe piccically relative to the region to be to explore
  • the output signal must have been processed by a format change tern such tern has the venient inconv ulcnlii of the rate of .il FILING and reduce the width of the entrance window
  • the object of the present invention is to solve the above-mentioned problems by implementing a new type of water.
  • probe for ultrasound exploration aple to dcl ⁇ rcr an output signal immediately exploitable to directly form a rectangular image
  • Another object of the present invention is to provide an acoustic probe whose window of the probe nose is formed by a wall and whose acoustic beam is normal to this window for easy positioning without the appearance of artefacts in the image formed.
  • Another object of the present invention is to provide a probe for which the attenuation of the return signal in the coupling medium is reduced
  • the probe for ultrasound exploration with low depth comprising a tubular body in which is fitted a main chamber receiving a transmission and reception assembly of an ultrasonic wave constitutes an acoustic monotransducleui. installed on a mount driven in a back and forth movement in the main chamber by a motion transmission secured to a drive motor mounted in a secondary chanibic 4i ⁇ nenagee in the tubular body and separated from the previous one by a partitioning element the main chanibic being sealed by a probe nose comprising an acoustic window made of a solid element, impermeable to the acoustic coupling liquid introduced into the main chamber and permeable to the acoustic wave emitted by the transducer in the direction of the anatomical region to explore and the return wave reflected by the anatomical region towards the acoustic monotransducteui is essentially characterized in that the movement back and forth from the set of emission and reception of the acoustic wave is a movement translation parallel to the
  • the signal at the probe output can be used so that no format change means is required for the formation of a rectangular image which can then be displayed at a high rate.
  • the distance cntie the transmission reception assembly of the acoustic wave and the acoustic window is equal or supe ⁇ euic ⁇ P ax cl / c2 where - Pmax is the maximum depth of exploration
  • - c2 is the speed of the acoustic wave in the anatomical region, ⁇ cxploier
  • the coupling medium is basically water
  • FIG. 1 is a longitudinal sectional view of the probe according to the invention
  • FIG. 2 is a sectional view along the broken line AA of Figtiie 1
  • FIG. 3 is a half sectional partial view of a support probe
  • the probe according to the invention for example, ultrasound exploration at shallow depth, comprises a rigid tubular body 1 comprising a distal end and a proximal end extended by a probe nose 2 in the form of a concave body. determining with a partitioning element 3 arranged in the tubular body 1 at a distance from the proximal end. a sealed main chamber 4 into which is introduced an acoustic coupling liquid, for example water, and into which is arranged an emission and reception assembly 5 of an acoustic wave of a frequency which may be equal to ten MHz, twelve MHz. fifteen MHz.
  • an acoustic coupling liquid for example water
  • This transmission and reception assembly is mounted in fixation on a mount 6 itself mounted in sliding on two straight guide guides 7 mounted in the main chamber 4
  • This mount 6 is driven in the main chamber according to a reciprocating movement of readilinear translation in a direction perpendicular to the direction of the acoustic beam emitted by the transmission and reception assembly 5 in the direction of an acoustic window 8 arranged in the probe nose and developing perpendicularly to the direction of the acoustic beam.
  • This acoustic window 8 is advantageously constituted by a wall of very small thickness, able to be constituted by a flexible thermoformable membrane. affixed to the probe nose and coming completely obturated an ectangular lumicic i practiced in the wall of the probe nose, perpendicular to the direction of the acoustic beam By the flexible membrane, the probe / ne is applied against the anatomical region explored This nose probe can be removably attached to the tubular body
  • the set of transmission and reception is constituted for example by an electroacoustic monotransducer r pe piezo-élect ⁇ que. comprising an emitting head receiving ultrasonic waves The head is located at a distance of a few millimeters from the acoustic window
  • the mount 6 is mobilized according to the movement of alternating tianslalion by a motion transmission secured to the rotary output shaft of an electric motor 9 installed in a secondary chamber 10 arranged in the lubricious body 1 behind the clcmcnt partitioning 3
  • the frame 6 is constituted by a parallelepiped block. a synthetic material with low water absorption capacity
  • the frame 6 is made of poheth lene. this material having good mechanical strength properties, whilst being of low density The low weight of the frame 6 allows to limit the effects of unbalance
  • This mount a tapping Uav ersanl axial into which is introduced in v issage the threaded shank of a tubular support receiving ant fixation the electroacoustic monotransducer
  • the mount evolves in alternating translation in a hollow through recess in a support 11 secured to the partitioning element 3
  • This support 11 is fixed by several screws to the partitioning element 3
  • F evidement trav ersant is delimited by two riv es of the support, parallel, opposite and the guides 7, mutually parallel. and to the acoustic window 8. are mounted in Ve grooves dug in the parallel banks
  • These guides are in overflow, relative to their groove, so as to be able to receive in couhss, the frame 6
  • the latter also comprises two V-shaped grooves by which it is engaged in couhss on the guides 7
  • the guides 7 made of a material capable of resisting corrosion from water, are cylindrical in shape. Preferably, these guides 7 are made of stainless steel.
  • the transmission of movement between the mount 6 and the rotary output shaft of the motor 9 is constituted by a crank pin 12 carried eccentrically by a plate 13 secured to a drive shaft 14 coupled by any known moven has the rotary output of the motor 9
  • This transmission also includes a slide 15. in the form of a groove of straight U-shaped section, formed in the mount 6 perpendicular to the guides 7
  • the crankpin i 2. of cylindrical shape, is engaged in sliding. with very little play. in the slide 15 It can therefore be seen that, by rotation of the assembly, constitutes by the shaft 14, the plate 13 and the crank pin 12.
  • the frequency of this reciprocating rectilinear movement is 10 Hz
  • the crank pin 12. is formed in the plate 13. by removal of material, a balancing flat
  • the partition element 3 consists of a cylindrical tubular sheath provided at a distance from its two ends, of a median tiansversale partition 16 This partition develops perpendicular to the longitudinal axis of the element of partitioning 3
  • the external diameter of the tubular sleeve cv lindrique is very slightly less than the internal diameter of the tubular body so that the said sleeve can adjust in a sliding manner in said partitioning element 3
  • At least one annular seal 3a is interposed between the tubular feeder and the tubular body In the partition 16, a through hole is made in the middle, in which is mounted a sealed bearing 17 for guiding the rotation of the drive shaft 14
  • This ctanchc bearing is advantageously constituted by a sealed ball bearing
  • an angular position detector 20 is provided which couples to the drive shaft 14 This detector 20 is capable of delivering, in the form of an electric pulse, a signal representative of a particular angular value and corresponding to a precise, predefined position, of the set of emission and reception of the acoustic waves
  • this detector 20 is installed in the partitioning element 3 between the wall of the cover 19 and the central wall.
  • the angular position detector is of the HALL effect type and comprises a ring with magnet ( s) fixed lolation and translation on the shaft 14 and a support carrying the detector itself, the middle wall fixed Conlie the probe as described may also be used for reconstruction of three-dimensional images this purpose.
  • FIG. 3 shows a guide support according to a first embodiment
  • This guide support has a hollowed-out frame 21 forming a frame, by which it is affixed to the anatomical region to be observed
  • the frame comprises two rectilinear slide rails 22. parallel with which cooperate in guiding two guide slides 23 pourv u each perpendicular to the guide direction that defines glissicie a wedge pin 24.
  • each of the setting pins co operates in the form of a fork 25 integral with the probe nose 2 and intended to come against a flat surface 26 faith denying a recess this flat surface being parallel to the plane that defines the frame Opposite the plane suiface, the rod has a flat by which it is caused to slide on this surface
  • the two rods 25 that the probe nose 2 develops along a direction parallel to the direction of movement of the monotransducer
  • each flat is contained in a plane perpendicular to the direction of panning BASED ultrasonic by performing a map support on a map with the corresponding recess, the flat ensures the maintenance of the probe in a specific direction in which the ultrasonic founds propagation direction is normal to the plane that defines the framework according Celtic position the axis longitudinal of the probe is normal to the frame plane to one of the sliders 23 is associated with a sensor Liné position area
  • the probe With the support as described, the probe is moved manually in translation along the slides of the support frame. It is also possible to provide a support provided with motor movens ensuring the motorization of the movement of the probe.
  • These movens moleuis pouironl be constituted for example by at least one transmission mov ement constituted by two pulleys on which wound a same s belt whose upper run is secured to one of the slides one of the pulleys will be keyed on the output shaft of an electric motor drive by preferably two movement transmissions will be provided cooperating respectively with the two slides.
  • the support is always constituted by a hollow support frame.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)
EP98933741A 1998-01-14 1998-06-26 ULTRASCHALL-WANDLER MIT ZUBEHöR Withdrawn EP1054627A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9800314 1998-01-14
FR9800314A FR2773460B1 (fr) 1998-01-14 1998-01-14 Sonde d'echographie et accessoires
PCT/FR1998/001371 WO1999035969A1 (fr) 1998-01-14 1998-06-26 Sonde d'echographie et accessoires

Publications (1)

Publication Number Publication Date
EP1054627A1 true EP1054627A1 (de) 2000-11-29

Family

ID=9521757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98933741A Withdrawn EP1054627A1 (de) 1998-01-14 1998-06-26 ULTRASCHALL-WANDLER MIT ZUBEHöR

Country Status (6)

Country Link
US (1) US6468220B1 (de)
EP (1) EP1054627A1 (de)
JP (1) JP2002508983A (de)
AU (1) AU8345498A (de)
FR (1) FR2773460B1 (de)
WO (1) WO1999035969A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003309890A (ja) * 2002-04-17 2003-10-31 Matsushita Electric Ind Co Ltd 超音波探触子
JP2011530324A (ja) * 2008-08-05 2011-12-22 ユーエス ハイフ,エルエルシー Hifu処置プローブ
US20100210943A1 (en) * 2009-02-18 2010-08-19 West Virginia University Research Corporation Systems and Methods for Echoperiodontal Imaging
US20100324418A1 (en) * 2009-06-23 2010-12-23 Essa El-Aklouk Ultrasound transducer
US8682015B2 (en) 2011-09-09 2014-03-25 Knowles Electronics, Llc RF shielding for acoustic devices
KR101970224B1 (ko) * 2018-10-24 2019-04-18 엘아이지넥스원 주식회사 음향 송수신 장치 및 그 동작방법
CN209574737U (zh) * 2018-11-09 2019-11-05 无锡海斯凯尔医学技术有限公司 外壳、探头及检测设备
FR3142339B1 (fr) 2022-11-30 2024-10-11 Echopen Factory Sonde échographique polyvalente à plusieurs transducteurs monoéléments à balayage mécanique oscillant
FR3142340A1 (fr) 2022-11-30 2024-05-31 Echopen Factory Sonde échographique polyvalente à transducteur mut à balayage mécanique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1539512A (en) * 1975-01-17 1979-01-31 Greater Glasgow Health Board Ultrasonic scanning apparatus
US4917096A (en) * 1987-11-25 1990-04-17 Laboratory Equipment, Corp. Portable ultrasonic probe
US5329194A (en) * 1992-11-23 1994-07-12 Capistrano Labs, Inc. Ultrasonic peripheral vascular probe assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9935969A1 *

Also Published As

Publication number Publication date
FR2773460A1 (fr) 1999-07-16
FR2773460B1 (fr) 2000-06-09
AU8345498A (en) 1999-08-02
US6468220B1 (en) 2002-10-22
JP2002508983A (ja) 2002-03-26
WO1999035969A1 (fr) 1999-07-22

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