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WO2011089160A1 - Dispositif de détermination d'écartements de vertèbres de la colonne vertébrale - Google Patents

Dispositif de détermination d'écartements de vertèbres de la colonne vertébrale Download PDF

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Publication number
WO2011089160A1
WO2011089160A1 PCT/EP2011/050698 EP2011050698W WO2011089160A1 WO 2011089160 A1 WO2011089160 A1 WO 2011089160A1 EP 2011050698 W EP2011050698 W EP 2011050698W WO 2011089160 A1 WO2011089160 A1 WO 2011089160A1
Authority
WO
WIPO (PCT)
Prior art keywords
processing system
data processing
spinal column
electrical signals
ultrasound probes
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.)
Ceased
Application number
PCT/EP2011/050698
Other languages
German (de)
English (en)
Inventor
Reinhard Panning
Jörg Franke
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.)
Otto Von Guericke Universitaet Magdeburg
Original Assignee
Otto Von Guericke Universitaet Magdeburg
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 Otto Von Guericke Universitaet Magdeburg filed Critical Otto Von Guericke Universitaet Magdeburg
Publication of WO2011089160A1 publication Critical patent/WO2011089160A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4538—Evaluating a particular part of the muscoloskeletal system or a particular medical condition
    • A61B5/4561—Evaluating static posture, e.g. undesirable back curvature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Clinical applications
    • A61B8/0858—Clinical applications involving measuring tissue layers, e.g. skin, interfaces
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/42—Details of probe positioning or probe attachment to the patient
    • A61B8/4272—Details of probe positioning or probe attachment to the patient involving the acoustic interface between the transducer and the tissue
    • A61B8/4281—Details of probe positioning or probe attachment to the patient involving the acoustic interface between the transducer and the tissue characterised by sound-transmitting media or devices for coupling the transducer to the tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0295—Operational features adapted for recording user messages or annotations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
    • A61B5/1116—Determining posture transitions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4504—Bones
    • 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
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6823—Trunk, e.g., chest, back, abdomen, hip
    • 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
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683—Means for maintaining contact with the body
    • A61B5/6831—Straps, bands or harnesses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient; User input means
    • A61B5/7405—Details of notification to user or communication with user or patient; User input means using sound
    • A61B5/741—Details of notification to user or communication with user or patient; User input means using sound using synthesised speech
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/42—Details of probe positioning or probe attachment to the patient
    • A61B8/4209—Details of probe positioning or probe attachment to the patient by using holders, e.g. positioning frames
    • A61B8/4227—Details of probe positioning or probe attachment to the patient by using holders, e.g. positioning frames characterised by straps, belts, cuffs or braces

Definitions

  • the invention relates to devices for determining vertebral spacing of the spinal column.
  • the indicated in claim 1 invention has for its object to easily detect vertebral spaces of the spine of a patient when walking in a building or outdoors.
  • the means for determining vertebral spacing of the spinal column are characterized in particular by the fact that vertebral distances of the patient when walking in a building or outdoors can be easily detected.
  • At least two flexibly interconnected and arranged in the direction of the spine ultrasound probes are arranged on a support system for detecting the distances of either spinous processes or between spinous processes and connected to the spine bone, wherein the central axis of the spine is located between the groups. Furthermore, at least one coupling is arranged for the ultrasonic waves of the ultrasound probes between these and the skin surface.
  • the ultrasound probes are interconnected with a data processing system at least for the storage of the returned to the electrical signals rewound S challwellenimpulse the ultrasound probes.
  • Vertebrae and discs are subject to wear.
  • One consequence is pain, which sometimes occurs in the patient only after a prolonged movement.
  • the patient In order to relieve the pain, the patient involuntarily adopts an abnormal posture that is typical for certain clinical pictures.
  • the device is characterized advantageously by registering these changes in attitude.
  • the patient receives the device, which is characterized in that it can be used on a mobile basis.
  • the device detects the positions of the spinous processes and then the spine.
  • the flexibly interconnected ultrasonic probes do not hinder the patient as much as possible.
  • the ultrasound probes are connected to one another via a flexible object or via at least one rotary joint.
  • the lateral spinous processes are located 4 to 10 cm below the dorsal skin at a distance of a few centimeters to the side of the vertebral axis.
  • Ultrasonic probes are used to detect the vertebral contours.
  • the ultrasonic waves of these ultrasonic probes are generated by means of the indirect piezoelectric effect of piezoelectric elements.
  • the ultrasound probes serve to detect the ultrasound waves that have passed back, whereby an electrical voltage equivalent to the ultrasound is generated by means of the direct piezoelectric effect. From this, pixels are obtained.
  • the contours of at least the spinous processes are detected dynamically during the movement of the patient.
  • the ultrasonic waves of the ultrasound probes become inhomogeneities of a structure partially or completely scattered and reflected.
  • the resulting ultrasonic waves which return as echoes, are converted into electrical signals in the ultrasound probes. These are at least stored.
  • An evaluation is of course also possible with this or, moreover, another data processing system.
  • these can be output for applications in various ways, for example as an image on a screen.
  • the amplitude of an echoed back signal is a measure of the gray value of a pixel.
  • the data processing system is, for example, a known microcontroller. After the detection and storage, it is thus easy to carry out an evaluation by means of the further data processing system in the form of a personal computer.
  • the ultrasonic probe consists according to the embodiment of claim 2 from mutually parallel linear sound heads or is a sector acoustic head.
  • the piezo elements are each arranged in series. This results in a loud sound propagation, creating a rectangular image.
  • adjacent linear sound heads of an ultrasonic probe enclose an angle between 90 ° and 180 °.
  • the ultrasonic waves reach the tissue to be examined at different angles, so that a two-dimensional image is produced.
  • a sector acoustic head has a small coupling surface and is known to be carried out electro-mechanically or electronically.
  • a few piezo elements rotate or oscillate about an axis and build up a triangular image of the scanned region with an angle of 60 ° to 120 °.
  • the piezoelectric elements are arranged annularly (Annular Phased Array Applicator), so that a focusing of the emitted sound is possible.
  • the data processing system is a data processing system that evaluates the electrical signals in A-mode and / or 2D real-time mode and / or 3D mode and / or 4D mode.
  • the echo strength is recorded as a function of the penetration depth.
  • the 3D-mode is a three-dimensional echography. 3D ultrasound produces spatial still images.
  • the 4D mode (3D mode plus temporal dimension) allows a three-dimensional representation in real time.
  • a pivot of the plane is performed for a three-dimensional image.
  • the area scan angle is stored simultaneously with the two-dimensional image.
  • a pivoting of the beam is performed electronically.
  • the data generated from the signals are entered in a 3D matrix for image processing and visualization. This creates representations of sectional planes from arbitrary angles on the object.
  • the data processing system is interconnected according to the embodiment of claim 4 with a data display device for the visual representation of the backward, converted into electrical signals and evaluated sound wave pulses.
  • a scale can be shown, so that the distances can be determined and their changes are easily detected.
  • the data processing system is a data wave system detecting at least one of the edges of the spinous processes from the backward and repeated backward and electrical signals. At least the distances between the determined edges and repeatedly determined edges are assigned the time and thus the movement is determined. The equivalent electrical signals obtained from the returned signals can at the same time be easily assigned gray values and hence also edges.
  • an electro-acoustic device for recording, storing and reproducing spoken words is part of the device for determining vertebral spacing of the spinal column. At the same time, the electro-acoustic device is a device that assigns the spoken text a time after the start.
  • the data processing system is coupled to the electro-acoustic device, that from the movement times and the text times, the movements of the patient are assigned.
  • a device for the input of data is part of the device for determining vertebral spacing of the spine. This is coupled to the data processing system so that the inputs are associated with the patient's movements.
  • the entries relate to certain movements of the patient, which he specifically enters during his movement. This can be a change of direction or a certain type of movement. The latter is, for example, uphill or downhill running, climbing stairs, turns or nature of the way.
  • the input is easily accessible via known keys (keyboard) or a likewise known touchscreen (touch screen).
  • the device for inputting data and the data processing system coupled to the data display system are interconnected such that data is assigned to the image.
  • the intervertebral spaces are thus determined in dependence and simultaneous assignment of the vertebral distances of the spinal column of the patient.
  • the data processing system is according to the embodiment of claim 9 a
  • the gray scale images are comparative and
  • DIC Digital image correlation
  • Fig. 1 shows a device for determining vertebral spacing of the spine in a side view
  • Fig. 2 shows a device for determining vertebral spacing of the spine in a plan view.
  • a device for determining vertebral spacing of the spinal column 4 consists essentially of ultrasound probes made of linear sound heads 1 on a support system 2, at least one coupling 3 for the ultrasound waves and a data processing system.
  • FIG. 1 shows a device for determining vertebral spacing of the spine 4 in a basic side view.
  • At least two ultrasound probes connected flexibly to one another are fastened on the back by means of the support system 2, the central axis 5 of the spinal column 4 being located between the ultrasound probes.
  • FIG. 2 shows a device for determining vertebral spacing of the spine 4 in a basic plan view.
  • the ultrasound probes each consist of mutually parallel and arranged in the direction of the spine 4 linear sound heads 1 on the support system 2.
  • the latter is a known belt system.
  • the Coupling 3 for the ultrasonic waves This may be a layer of a known gel or a specially designed object in the form of a pillow.
  • the ultrasound probes are connected to a data processing system, at least for storing the sound wave pulses of the linear sound heads 1 that are converted into electrical signals and return as echoes.
  • the data processing system is a data processing system that evaluates the electrical signals in the A-mode and / or 2D-E c h t c e d m o d e and d d o d e r 3 D-m o d e u n d / o d e r 4 D-mode.
  • the data processing system is one of the backward and repeated backward and converted into electrical signals sound wave pulses at least one of the edges of the spinous processes benzodes data processing system, wherein at least the distances of the determined edges and repeatedly determined edges with assignment of the time and thus the movement is determined.
  • the data processing system or another data processing system is connected to a data display device for the visual representation of the backward, converted into electrical signals and evaluated sound wave pulses.
  • adjacent linear acoustic heads 1 of an ultrasound probe subtend an angle between 90 ° and 180 °.
  • the linear sound heads 1 are arranged at an angle to each other and form an arc shape.
  • an electro-acoustic device for recording, storing and reproducing spoken words is part of the means for determining vertebral spacing of the spine 4.
  • the electroacoustic device simultaneously allocates a time after start-up to the spoken text.
  • the data processing system is coupled to the electro-acoustic device so that the movements of the patient are assigned from the movement times and the text times.
  • a device for inputting data is a component of the device for determining vertebral spacing of the spinal column 4.
  • the data processing system is in this case coupled to the device such that the inputs are assigned to the movements of the patient.
  • these data are assigned to the image associated image.
  • the device is a keyboard or a touchscreen (touch screen) is used. Certain keys of the keyboard or areas of the touch screen are associated with certain movements (such as stair climbing, turns, gradients, and / or nature of the path).
  • the ultrasound probes are sector sound heads, in particular electronic sector sound heads (phased array applicators), which generate sector-shaped images.
  • the data processing system evaluates the images in 4D mode (3D mode plus temporal dimension). This mode advantageously leads to three-dimensional representations in real time.
  • a pivot of the plane is completed.
  • the area scan angle is stored simultaneously with the two-dimensional image.
  • a pivoting of the beam is performed electronically.
  • the data generated from the signals are entered in a 3D matrix for image processing and visualization. This creates representations of sectional planes from arbitrary angles on the object.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Acoustics & Sound (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Rheumatology (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention concerne des dispositifs de détermination d'écartements de vertèbres de la colonne vertébrale. Les dispositifs sont caractérisés en particulier en ce que les écartements de vertèbres du patient sont détectables facilement lors de la marche dans un bâtiment ou à l'extérieur. Pour cela, au moins deux sondes à ultrasons reliées les unes aux autres de manière flexible et disposées dans le sens de la colonne vertébrale sont disposées sur un système de support pour l'enregistrement des écartements soit des processus vertébraux soit entre les processus vertébraux et les os reliés à la colonne vertébrale, l'axe central de la colonne vertébrale se trouvant entre les groupes. En outre, au moins un couplage pour les ondes ultrasonores des sondes à ultrasons est disposé entre celles-ci et la surface de la peau. En outre, les sondes à ultrasons sont interconnectées avec un système de traitement des données au moins pour l'enregistrement des impulsions d'ondes sonores des sondes à ultrasons renvoyées converties en signaux électriques.
PCT/EP2011/050698 2010-01-19 2011-01-19 Dispositif de détermination d'écartements de vertèbres de la colonne vertébrale Ceased WO2011089160A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010001020A DE102010001020A1 (de) 2010-01-19 2010-01-19 Einrichtung zur Ermittlung von Wirbelabständen der Wirbelsäule
DE102010001020.0 2010-01-19

Publications (1)

Publication Number Publication Date
WO2011089160A1 true WO2011089160A1 (fr) 2011-07-28

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PCT/EP2011/050698 Ceased WO2011089160A1 (fr) 2010-01-19 2011-01-19 Dispositif de détermination d'écartements de vertèbres de la colonne vertébrale

Country Status (2)

Country Link
DE (1) DE102010001020A1 (fr)
WO (1) WO2011089160A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017001962A1 (fr) * 2015-06-30 2017-01-05 Koninklijke Philips N.V. Procédés, appareils et systèmes pour accoupler un transducteur souple à une surface
CN109009136A (zh) * 2018-08-30 2018-12-18 中国人民解放军第二军医大学第二附属医院 一种新型的椎间测量器
WO2025174993A1 (fr) * 2024-02-14 2025-08-21 The Johns Hopkins University Systèmes et méthodes d'imagerie médicale échoguidée améliorée

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016097867A2 (fr) 2014-12-19 2016-06-23 Université Pierre Et Marie Curie (Paris 6) Dispositif de traitement implantable produisant des ultrasons pour le traitement du cerveau, appareil comprenant un tel dispositif et procédé mettant en œuvre un tel dispositif
WO2017153798A1 (fr) 2016-03-11 2017-09-14 Université Pierre Et Marie Curie (Paris 6) Dispositif de traitement implantable générant des ultrasons pour le traitement de la moelle épinière et/ou du nerf rachidien, appareil comprenant un tel dispositif et procédé
US11253729B2 (en) 2016-03-11 2022-02-22 Sorbonne Universite External ultrasound generating treating device for spinal cord and/or spinal nerve treatment, apparatus comprising such device and method
DE102016108515A1 (de) 2016-05-09 2017-11-09 M3Vision GmbH Verfahren zur Haltungskontrolle, Sensoreinrichtung zur Positionierung an einer Wirbelsäule sowie ein System zur Haltungskontrolle

Citations (7)

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US4699156A (en) 1985-06-06 1987-10-13 Diagnospine Research Inc. Non invasive method and equipment for the detection of torsional injuries in the lumar spine of a patient
US5022412A (en) 1987-10-05 1991-06-11 Diagnospine Research Inc. Connection kit for skin-markers and electrodes
WO2002074155A2 (fr) * 2001-03-19 2002-09-26 Orthoscan Technologies Inc. Systeme et procede d'etablissement de cartes d'isogrammes particulierement utiles comme systeme d'analyse du rachis, et sonde s'y rapportant
US20040024312A1 (en) * 2002-08-01 2004-02-05 The Hong Kong Polytechnic University Method and apparatus for sensing body gesture, posture and movement
DE10310331B3 (de) * 2003-03-10 2004-11-18 Zebris Medizintechnik Gmbh Vorrichtung zur Bestimmung der Beweglichkeit von Funktionssegmenten der Wirbelsäule
US20050267365A1 (en) * 2004-06-01 2005-12-01 Alexander Sokulin Method and apparatus for measuring anatomic structures
US20080287796A1 (en) * 2007-05-18 2008-11-20 Atilla Peter Kiraly Method and system for spine visualization in 3D medical images

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DE102006029938A1 (de) * 2006-03-27 2007-10-11 Siemens Ag Verfahren, Vorrichtung und Verwendung eines faseroptischen Biegesensors zur Erfassung einer Form zumindest eines Teils einer Wirbelsäule

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4699156A (en) 1985-06-06 1987-10-13 Diagnospine Research Inc. Non invasive method and equipment for the detection of torsional injuries in the lumar spine of a patient
US5022412A (en) 1987-10-05 1991-06-11 Diagnospine Research Inc. Connection kit for skin-markers and electrodes
WO2002074155A2 (fr) * 2001-03-19 2002-09-26 Orthoscan Technologies Inc. Systeme et procede d'etablissement de cartes d'isogrammes particulierement utiles comme systeme d'analyse du rachis, et sonde s'y rapportant
US20040024312A1 (en) * 2002-08-01 2004-02-05 The Hong Kong Polytechnic University Method and apparatus for sensing body gesture, posture and movement
DE10310331B3 (de) * 2003-03-10 2004-11-18 Zebris Medizintechnik Gmbh Vorrichtung zur Bestimmung der Beweglichkeit von Funktionssegmenten der Wirbelsäule
US20050267365A1 (en) * 2004-06-01 2005-12-01 Alexander Sokulin Method and apparatus for measuring anatomic structures
US20080287796A1 (en) * 2007-05-18 2008-11-20 Atilla Peter Kiraly Method and system for spine visualization in 3D medical images

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017001962A1 (fr) * 2015-06-30 2017-01-05 Koninklijke Philips N.V. Procédés, appareils et systèmes pour accoupler un transducteur souple à une surface
CN107809957A (zh) * 2015-06-30 2018-03-16 皇家飞利浦有限公司 用于将柔性换能器耦合到表面的方法、装置和系统
US11090027B2 (en) 2015-06-30 2021-08-17 Koninklijke Philips N.V. Methods, apparatuses, and systems for coupling a flexible transducer to a surface
CN109009136A (zh) * 2018-08-30 2018-12-18 中国人民解放军第二军医大学第二附属医院 一种新型的椎间测量器
CN109009136B (zh) * 2018-08-30 2024-03-22 中国人民解放军第二军医大学第二附属医院 一种新型的椎间测量器
WO2025174993A1 (fr) * 2024-02-14 2025-08-21 The Johns Hopkins University Systèmes et méthodes d'imagerie médicale échoguidée améliorée

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