EP4188620A1 - Dispositif et procédé d'alimentation d'un transducteur ultrasonore - Google Patents
Dispositif et procédé d'alimentation d'un transducteur ultrasonoreInfo
- Publication number
- EP4188620A1 EP4188620A1 EP21752485.9A EP21752485A EP4188620A1 EP 4188620 A1 EP4188620 A1 EP 4188620A1 EP 21752485 A EP21752485 A EP 21752485A EP 4188620 A1 EP4188620 A1 EP 4188620A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal
- ultrasonic
- control
- digital
- control signal
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/56—Details of data transmission or power supply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0223—Driving circuits for generating signals continuous in time
- B06B1/0238—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0215—Driving circuits for generating pulses, e.g. bursts of oscillations, envelopes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0654—Imaging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
- G01N29/346—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with amplitude characteristics, e.g. modulated signal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/70—Specific application
- B06B2201/76—Medical, dental
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/024—Mixtures
- G01N2291/02475—Tissue characterisation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/106—Number of transducers one or more transducer arrays
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/50—Digital/analogue converters using delta-sigma modulation as an intermediate step
Definitions
- the present invention relates to a device and a method for powering an ultrasonic transducer. It also relates to an ultrasonic device comprising such a power supply device, and an ultrasonic system comprising such an ultrasonic device.
- the field of the invention is the field of ultrasonic devices and in particular the field of powering ultrasonic transducers, and in particular ultrasonic transducers for medical use.
- Ultrasonic transducers are widely used in the medical field, in particular for medical imaging, for example for ultrasound, but also for medical therapy. To do this, the transducers are typically arranged in a matrix, also called an “ultrasonic head”, in order to emit focused and high-power ultrasound in the area to be imaged or treated. Each ultrasonic transducer is supplied with a sinusoidal signal at a given frequency so as to generate an ultrasonic signal of said frequency.
- the ultrasonic head comprises, for each ultrasonic transducer, an individual control chain.
- the latter makes it possible to modify, individually for each transducer, the amplitude of the ultrasonic signal emitted by said transducer, but also its frequency and its phase.
- the characteristics of the ultrasonic wave emitted by each transducer of the matrix can be modified.
- An object of the present invention is to remedy at least one of the aforementioned drawbacks.
- Another object of the present invention is to provide a device for supplying an ultrasonic transducer that is more efficient in terms of performance.
- Another object of the present invention is to propose a device for supplying an ultrasonic transducer supplying a sinusoidal supply signal of better quality.
- Another object of the present invention is to provide a device for supplying an ultrasonic transducer that is less bulky.
- a power supply device for an ultrasonic transducer comprising a power interface configured to supply an analog power signal, called a power supply signal, to said ultrasonic transducer , characterized in that it further comprises a sigma-delta modulator configured to carry out a sigma-delta modulation of a sinusoidal signal, called control signal, and supply a digital signal, called control signal, to control said power interface.
- the invention proposes to control the power interface supplying the sinusoidal power supply signal to the ultrasonic transducer by a sigma-delta modulator through a sinusoidal signal modulated in sigma-delta.
- the device according to the invention makes it possible to supply the ultrasonic transducer with a supply signal of better quality, and with improved efficiency compared to known command chains.
- the sigma-delta modulator makes it possible to supply a sigma-delta modulated sinusoidal signal making it possible to control a simple power interface and at lower cost.
- the transducer supply signal contains harmonics located in the high frequencies outside its passband.
- the sigma-delta modulator can be realized in the form of a digital component so that the size of the power supply device is smaller, compared to currently known analog control chains.
- the use of a sigma-delta modulator makes it possible to avoid the use of a filter dedicated to the suppression of harmonics, which further reduces the size of the power supply device according to the invention.
- the reduction in the size of the power supply device according to the invention makes it possible to reduce the size of the ultrasonic head compared to current ultrasonic heads, or to increase the number of transducers of the ultrasonic head with constant size.
- the sigma-delta modulator can be of any order.
- the sigma-delta modulator can be of the 4th order.
- the sigma-delta modulator may include a mono-bit output quantizer so that the control signal is modulated on one bit.
- the power interface can for example be a half H-bridge controlled by the sigma-delta modulated control signal.
- the sigma-delta modulator can include a multi-bit output quantizer so that the control signal is modulated over several bits.
- the power interface can for example be a group of switches, each connected to a particular fixed voltage, controlled by the sigma-delta modulated control signal.
- the control signal is on two bits, four switches and their voltage source are necessary.
- the power interface is adapted to the number of bits of the control signal.
- control signal can be a digital sinusoidal signal, that is to say a sinusoidal signal in digital form, in other words a sinusoidal signal represented in digital form traditionally encoded in “n” bits in complement to 2.
- the power supply device may further comprise a digital generator configured to generate said control signal, according to any combination of at least one of the following parameters:
- Such a generator can be an electronic chip, or any other digital component programmed to generate, in digital form, an analog signal as a function of input data representing at least one of the listed parameters.
- the power supply device may comprise a digital control interface providing any combination of at least one of the following parameters:
- Such a digital control interface may be, or may include, a digital communication interface provided to receive data representing at least one of the parameters listed, from an external control device.
- such a digital control interface may be, or include, a calculation intelligence making it possible to deduce at least one of the parameters listed as a function of other data supplied to it, such as for example power data, a focus distance, etc.
- the digital control interface can be provided to achieve wireless communication with the external control device.
- the digital control interface can be provided to carry out a wired communication, with the external control device, through a digital communication bus.
- the power supply device according to the invention can be integrated, in part or in whole, in at least one digital component, such as an electronic chip or a processor, in particular a programmable one.
- all the elements of the power supply device according to the invention can be integrated into a digital component, such as an electronic chip or a processor, in particular programmable.
- the sigma-delta modulator can be integrated into a digital component, such as an electronic chip or a processor, in particular programmable, with the digital signal generator, and/or the digital control interface.
- an ultrasonic device comprising:
- a supply device for supplying said at least one ultrasonic transducer.
- the ultrasonic transducer can be a transducer of any type.
- the ultrasonic transducer can be an ultrasonic transducer used for medical applications, in particular for medical imaging such as echography, or medical treatment such as ecotherapy, or even for aesthetic applications.
- an ultrasonic head comprising several ultrasonic devices according to the invention, in parallel.
- each ultrasonic transducer is associated with a power supply device which is dedicated to it so that each ultrasonic transducer can be controlled individually.
- the characteristics of the ultrasonic wave generated by each ultrasonic transducer of the ultrasonic head according to the invention can be modified individually.
- the amplitude, the frequency and the phase of the ultrasonic wave emitted by each ultrasonic transducer of the ultrasonic head can be modified for each ultrasonic transducer individually.
- the ultrasonic head according to the invention can be used for medical imaging, in particular for echographic imaging.
- the ultrasonic head according to the invention can be used for medical therapy.
- the ultrasonic head according to the invention can be used for aesthetic treatment.
- an ultrasound system comprising:
- At least one digital control device for the ultrasonic devices of said ultrasonic head At least one digital control device for the ultrasonic devices of said ultrasonic head.
- the ultrasonic system may comprise for at least one, and in particular each, ultrasonic device of the ultrasonic head, an individual digital control device dedicated to said ultrasonic device.
- each ultrasonic device of the ultrasonic head receives the data concerning the ultrasonic wave to be generated from the digital control device dedicated to it.
- the ultrasonic system according to the invention may comprise a digital control device common to several, and in particular to all, ultrasonic devices.
- each ultrasonic device receives the data concerning the ultrasonic wave to be generated from said common digital control device.
- the common digital control device can be connected to the ultrasonic devices by a wired digital communication bus.
- said common digital control device can be connected to said ultrasonic devices by a wireless connection, for example of the Wifi or Bluetooth type, and more generally a radio frequency wireless connection.
- said common digital control device can be connected to said ultrasonic devices by an optical connection.
- the data defining the ultrasonic wave to be generated by each ultrasonic device can be sent to the digital control interface of said ultrasonic device.
- the system according to the invention can be a medical imaging system.
- the system according to the invention can be an echographic imaging system.
- the system can comprise, in known manner, means for processing echographic waves to generate at least one echographic image.
- the system according to the invention can be a medical therapy system.
- the system according to the invention can be an ecotherapy system.
- the system according to the invention can be an aesthetic treatment system.
- a use of the system according to the invention is proposed for the aesthetic treatment of at least one zone of the body of a human or animal being.
- control - sigma-delta modulation of a sinusoidal signal, called control, to provide a signal, called control;
- the method according to the invention can comprise, in terms of method, any combination of at least one characteristic described above, and which are not repeated here for the sake of brevity.
- FIGURE 1 is a schematic representation of a non-limiting embodiment of a device for supplying an ultrasonic transducer
- FIGURE 2 is a schematic representation of a non-limiting example of exemplary signals in the device of FIGURE 1;
- FIGURE 3 is a schematic representation of a non-limiting exemplary embodiment of an ultrasonic device according to the invention.
- FIGURE 4 is a schematic representation of a non-limiting embodiment of an ultrasonic head according to the invention.
- FIGURE 5 is a schematic representation of a non-limiting exemplary embodiment of an ultrasound system according to the invention
- - FIGURE 6 is a schematic representation of another non-limiting embodiment of an ultrasound system according to the invention.
- FIGURE 1 is a schematic representation of a non-limiting exemplary embodiment of a power supply device according to the invention.
- the device 100 represented in FIGURE 1, is intended to supply an ultrasonic transducer, for example in an ultrasonic transducer of an ultrasonic head for medical use.
- the power supply device 100 comprises a digital sinusoidal signal generator 102 which generates a digital sinusoidal signal, that is to say a sinusoidal signal represented in digital form, and referred to below as the pilot signal.
- This digital generator 102 can be any digital electronic component programmed or designed to deliver, in digital form, the sinusoidal control signal, according to the parameters relating to the sinusoidal signal to be generated.
- the parameters given to the digital generator 102 can include:
- the digital generator 102 therefore supplies a digital signal representing a sinusoidal signal, and called the control signal.
- the phase and the frequency of the pilot signal correspond respectively to the frequency and to the phase of the ultrasonic wave to be generated.
- Device 100 further comprises a Sigma-Delta converter 104, also called SD converter hereafter.
- the SD converter 104 receives the control signal and carries out a sigma-delta conversion of said control signal to supply a signal, called the control signal.
- the control signal supplied by the SD converter 104 is a sigma-delta representation of the control signal which itself is a digital signal representing a sinusoidal signal.
- the SD converter 104 can be of any order.
- SD converter 104 may include a single-bit or multi-bit output quantizer.
- the power supply device 100 comprises a power interface 106 designed to deliver a power signal supplying an ultrasonic transducer.
- the power supply signal delivered by the power interface 106 is a high voltage sinusoidal signal, for example between 10V and 100V, and with a power of a few watts.
- the ultrasonic transducer transforms this power signal into an ultrasonic wave whose frequency is equal to the frequency of the power signal.
- the power interface 106 is controlled by the control signal supplied by the SD converter 104. In other words, the control signal 106 adjusts the operation of the power interface 106 so that the latter supplies the power supply signal.
- the power interface 106 can be a half H-bridge or an H-bridge or even a group of switches, controlled by the control signal supplied by the SD converter. In this case, the power interface 106 comprises, in known manner, a DC voltage source, or receives a DC voltage from an external source.
- the control signal supplied by the SD converter 104 controls the operation of the power interface 106 which supplies, at output, a modulated sinusoidal supply voltage SD.
- the power supply device 100 comprises a control interface 108, upstream of the digital generator 102.
- the control interface is arranged to supply the digital generator 102 the characteristics of the sinusoidal signal to be generated, namely the frequency F, and/or the phase cp, and/or the amplitude A.
- the command interface 108 can be provided to receive at least one of these characteristics from an external device with which it is in communication.
- control interface 108 can be programmed to deduce at least one of these characteristics according to other data, such as a focusing distance of the ultrasonic wave to be generated or a power value of the ultrasonic wave to be generated, for example.
- control interface is optional and the characteristics of the sinusoidal signal can be communicated directly to the digital generator 102.
- Each of the modules 102-108 can be realized digitally.
- at least the SD converter 104 is implemented digitally.
- each of the modules 102-108 is shown individually. Of course, at least two of these modules can be integrated into the same digital component, such as a chip or a processor.
- the SD converter 104 and the digital generator 102 can be integrated into the same digital component.
- FIGURE 2 is a schematic representation of non-limiting examples of signals in the device of FIGURE 1.
- the signal 202 corresponds to the curve which represents the digital signal supplied by the generator 102 to the SD modulator;
- - signal 204 corresponds to the control signal, modulated in sigma-delta, produced by SD converter 104, which in this example has a mono-bit output, thanks to signal 202 and
- FIGURE 3 is a schematic representation of a non-limiting exemplary embodiment of an ultrasonic device according to the invention.
- the ultrasonic device 300 shown in FIGURE 3 comprises an ultrasonic transducer 302 powered by a power supply device according to the invention, and in particular the power supply device 100 of FIGURE 1.
- FIGURE 4 is a schematic representation of a non-limiting embodiment of an ultrasonic head according to the invention.
- the ultrasonic head 400 of FIGURE 4 comprises "n" ultrasonic devices 300i-300n arranged in parallel and forming an array.
- At least two of the ultrasound devices 300i-300n may be the same or different.
- Each ultrasonic device 300i can be identical to the ultrasonic device 300 of FIGURE 3 and includes all the elements of the device 300 with the same references supplemented by "i" as a subscript.
- FIGURE 5 is a schematic representation of a non-limiting exemplary embodiment of an ultrasound system according to the invention.
- the ultrasonic system 500 of FIGURE 5 comprises an ultrasonic head according to the invention, such as for example the ultrasonic head 400 of FIGURE 4.
- the ultrasonic system 500 further comprises a control device 502, such as a computer or a tablet, and more generally any computer device, connected to each ultrasonic device 300i of the ultrasonic head 400, and in particular to the control interface 108i of said ultrasonic device.
- a control device 502 such as a computer or a tablet, and more generally any computer device, connected to each ultrasonic device 300i of the ultrasonic head 400, and in particular to the control interface 108i of said ultrasonic device.
- control device 502 is connected to each control interface 108i through a digital and wired 504 communication bus 504.
- each control interface 108i can be in communication with the command 502 through a wireless link.
- the control device 502 makes it possible to control each ultrasonic device 300i individually and independently of the other ultrasonic devices 300i with a view to changing the frequency, the phase and/or the amplitude of the ultrasonic wave emitted by each ultrasonic device 300i. This makes it possible to adjust in a simple, dynamic and reactive manner, the amplitude, the frequency and the phase of each ultrasonic wave emitted by each ultrasonic device 300i. Therefore, it is possible to easily, flexibly and responsively adjust the focal point, and the amplitude of the ultrasonic waves emitted by the 300i-300n ultrasonic devices.
- FIGURE 6 is a schematic representation of another non-limiting embodiment of an ultrasound system according to the invention.
- FIGURE 6 illustrates a variation of FIGURE 5, wherein the system 600, shown in FIGURE 6, has a head 602 comprised of a plurality of 'h' composite ultrasound devices 604i- 604n .
- a same common interface 108 i controls a plurality of supply devices which each supply one and only one transducer.
- the same common interface 108i controls a plurality of 'k' supply devices 100n to 100im, which each supply one and only one transducer 302n to 302i k .
- the block 604 n comprises a single digital interface 108 n which directly drives the 'm' power supply devices 100 n m at 100 nm of the transducers 302 n m at 302 nm respectively.
- the matrix then consists of a multitude of transducers, which are associated in 'h' groups comprising an identical or different number of transducers.
- the number of transducers in a given group is small, for example in number from 2 to 16.
- it is for example possible to gain in compactness and in the number of components at the level of the digital interfaces within the head.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Chemical & Material Sciences (AREA)
- Biophysics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Computer Networks & Wireless Communication (AREA)
- Acoustics & Sound (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Surgical Instruments (AREA)
- Percussion Or Vibration Massage (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2008136A FR3113148B1 (fr) | 2020-07-30 | 2020-07-30 | Dispositif et procédé d’alimentation d’un transducteur ultrasonore |
| PCT/EP2021/070955 WO2022023316A1 (fr) | 2020-07-30 | 2021-07-27 | Dispositif et procédé d'alimentation d'un transducteur ultrasonore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4188620A1 true EP4188620A1 (fr) | 2023-06-07 |
Family
ID=73013700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21752485.9A Pending EP4188620A1 (fr) | 2020-07-30 | 2021-07-27 | Dispositif et procédé d'alimentation d'un transducteur ultrasonore |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12268560B2 (fr) |
| EP (1) | EP4188620A1 (fr) |
| JP (1) | JP2023541515A (fr) |
| FR (1) | FR3113148B1 (fr) |
| WO (1) | WO2022023316A1 (fr) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3476308B2 (ja) | 1996-06-20 | 2003-12-10 | ジーイー横河メディカルシステム株式会社 | 超音波振動子駆動方法および装置並びに超音波撮像装置 |
| CN103167380B (zh) * | 2011-12-13 | 2015-09-09 | 中国科学院声学研究所 | 一种数字化超指向性扬声器系统 |
| US10245007B2 (en) * | 2013-03-15 | 2019-04-02 | Infraredx, Inc. | High resolution intravascular ultrasound imaging systems and methods |
| GB2557750B (en) * | 2013-10-23 | 2018-08-22 | Cirrus Logic Int Semiconductor Ltd | Class-D Amplifier Circuits |
| US10613205B2 (en) * | 2014-10-06 | 2020-04-07 | Analog Devices, Inc. | Systems and methods for ultrasound beamforming |
| CN205426862U (zh) * | 2015-12-10 | 2016-08-03 | 华南理工大学 | 一种超声导波信号激励集成模块 |
| US9692445B1 (en) * | 2016-03-17 | 2017-06-27 | Texas Instruments Incorporated | Sigma-delta modulator for generating a sinusoidal signal |
| EP3519110A1 (fr) | 2016-09-29 | 2019-08-07 | Koninklijke Philips N.V. | Sonde à déphasage en réseau flexible destinée à un dispositif d'imagerie intravasculaire et dispositifs, systèmes et procédés associés |
-
2020
- 2020-07-30 FR FR2008136A patent/FR3113148B1/fr active Active
-
2021
- 2021-07-27 EP EP21752485.9A patent/EP4188620A1/fr active Pending
- 2021-07-27 US US18/006,378 patent/US12268560B2/en active Active
- 2021-07-27 WO PCT/EP2021/070955 patent/WO2022023316A1/fr not_active Ceased
- 2021-07-27 JP JP2023506185A patent/JP2023541515A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US12268560B2 (en) | 2025-04-08 |
| WO2022023316A1 (fr) | 2022-02-03 |
| FR3113148A1 (fr) | 2022-02-04 |
| JP2023541515A (ja) | 2023-10-03 |
| FR3113148B1 (fr) | 2023-05-26 |
| US20230255603A1 (en) | 2023-08-17 |
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