Swivel device for an ultrasound probe

Abstract

Pivoting Device for an Ultrasound Probe The present disclosure relates to a device for an ultrasound probe for acquiring ultrasound data from a medium, wherein the device is configured to be associated with the probe in a pivoting manner, such that the angle between the probe and the surface of the medium can be adjusted and / or fixed by pivoting the device. Figure for abstract: Figure 2a.

Description

Title of the invention: Pivoting device for an ultrasound probe Technical field

[0001] The present invention relates to medical systems and methods using such a system. Such a system may constitute a medical examination system. More particularly, it may constitute an ultrasound system. Prior art

[0002] An ultrasound system typically comprises electronic means, for example, a sensor and / or an ultrasound probe for acquiring data from a patient, and a processor for processing acquired data.

[0003] An ultrasound system may be intended to provide data of a medium to be examined. Examples of such systems include an optical imaging system, an ultrasound imaging system, a radiography system, a computed tomography system, a mammography system and the like. In the case of medical applications, the medium is a body, for example a part of a patient's body (muscles, fetus, breast, liver, abdomen, ...).

[0004] In general, the probe is held against the surface of an observed medium, in order to acquire data on this medium. In this context, it is important not to move the probe during data acquisition, or to move it only in a specific and desired manner.

[0005] For example, in the case of conventional B-mode (Brightness mode) ultrasound imaging, it is desirable for the probe to remain in a fixed position during data acquisition.

[0006] Furthermore, ultrasound imaging methods are known, in which a deformation is applied to the medium during data acquisition, for example described by WO2021116326A2. In this method, the non-linear elasticity of a medium is quantified using shear waves (in English "non-linear shear wave elastography"; NL-SWE). The method comprises the following steps: A1. Collection of a temporal succession of elasticity data by shear waves of the medium, A2. Application of a successively changing deformation to the medium according to a predetermined sequence of deformations during the collection of the shear waves, A3. Observation of the actual deformation evolution, and B. Quantification of the non-linear elasticity of the medium as a function of the temporal succession of data and the deformation evolution.

[0007] Also in an NL-SWE mode, it may be desirable for the probe to remain in a fixed position during data acquisition.

[0008] However, it may be difficult to avoid unwanted movement of the probe during data acquisition, particularly during a deformation step. For example, the ultrasound gel used may make the surface of the medium slippery. Similarly, a hard lesion in the medium or the patient's breathing may cause unwanted movements. Thus, unwanted movements may in particular cause transverse movement of the probe (e.g., sliding on the surface of the medium) and / or rotational movement changing the tilt angle.

[0009] Furthermore, since during deformation the force is applied only to the surface of the probe, homogeneity of the deformation is difficult to achieve.

[0010] Furthermore, initiating data acquisition often requires user action on the user interface (e.g., pressing a button) synchronized with the start of the deformation.

[0011] Various accessories for ultrasonic probes are known. For example, EP3202326A1 describes an accessory for an ultrasonic probe. The accessory comprises an acoustic matching element provided on a transceiver of an ultrasonic probe and deformed based on a surface of an inspection target when the ultrasonic probe scans the surface of the inspection target.

[0012] Furthermore, document EP1629777A1 discloses a pressure mechanism for applying pressure to the contact surface of a subject perpendicular to the ultrasonic wave transmitting / receiving surface of an ultrasound probe via the ultrasonic wave transmitting / receiving surface.

[0013] However, the known accessories are not suitable for overcoming the above-mentioned problems, in particular for applying a homogeneous pressure on the surface of the medium and at the same time maintaining the probe at a chosen angle relative to the surface of the medium. Statement of the invention

[0014] The present disclosure therefore aims to provide a device for an ultrasound probe which makes it possible to maintain the probe at an angle chosen by a user during data acquisition, and which allows homogeneous deformation of the medium during data acquisition while maintaining the chosen angle.

[0015] The present disclosure relates to a device (accessory) for an ultrasound probe for acquiring ultrasound data from a medium, wherein the device is configured to be associated with the probe in a pivotable manner, such that the angle between the probe and a surface of the medium can be adjusted and / or fixed by pivoting the device.

[0016] With this device, a user can stabilize and maintain the probe at a predefined angle / tilt during data acquisition.

[0017] For example, in the case of conventional B-mode (Brightness mode) ultrasound imaging, it is desirable for the probe to remain in a fixed position during data acquisition. Depending on the location of the region of interest in the medium that is to be imaged, it may also be advantageous for the probe not to be placed perpendicular to the surface of the medium but with a chosen tilt angle. In this case, the device of the present disclosure allows the tilt angle to be maintained during data acquisition.

[0018] According to another example, in the NL-SWE mode, it may be desirable to place the probe at a selected tilt angle relative to the medium to acquire data from a specific region of interest, such as a lesion. Accordingly, the device of the present disclosure allows the selected tilt angle to be maintained during the deformation step(s).

[0019] In particular, the device may be configured to be associated with the probe in a pivotable manner, such that, when (or while) the device is disposed against (and / or held on) the surface of the observed medium, the angle between the probe and the surface of the observed medium may be adjusted and / or fixed by pivoting the device.

[0020] The ultrasound probe may cooperate with a system that is configured to process data of a medium acquired by the probe.

[0021] The device may be configured to be positioned and / or attached to the probe in a pivotable manner. Thus, "associated with the probe in a pivotable manner" may mean, in one example, "positioned and / or attached to the probe in a pivotable manner."

[0022] The device may further comprise adaptable means configured to attach the device to different probe shells.

[0023] The probe may be configured to emit ultrasonic waves and / or may include a transducer configured to emit ultrasonic waves on a first side of the probe.

[0024] The device may be configured to be positioned and / or attached to the first side of the probe in a pivotable manner. Thus, the device may be configured to be positioned and / or attached, for example, to the hull of the probe and allowing the latter to pivot.

[0025] Alternatively, the device may also be configured to be positioned and / or attached in a pivotable manner on a side other than the first side of the probe. This configuration may apply, for example, if the probe is configured for endocavity areas. For example, the device may be configured to be positioned and / or attached to the handle of the probe or adjacent to the handle. Alternatively, the device may also be configured to be positioned and / or attached in a pivotable manner on a side opposite the first side.

[0026] The angle can be understood as an angle of inclination between the direction of the ultrasonic waves emitted by the probe and the surface of the medium.

[0027] The device may include an opening configured to allow transmission of the ultrasonic waves. Thus, the opening may be configured such that transmission and reception of the ultrasonic waves is possible without disturbance.

[0028] The device may include a plate and / or a planar surface configured to be disposed against the surface of the medium and to stabilize the angle between the probe and the surface of the medium.

[0029] In for example modes similar to the NL-SWE mode, the device can therefore allow a homogeneous deformation of the medium and, consequently, ensure good image quality. Indeed, during deformation with a probe without the device, only the tissue area located directly above the probe would be compressed, which can disrupt the estimation of the deformation if the imaging plane varies during acquisition.

[0030] The device and / or its opening may comprise a coupling means configured to allow the transmission of ultrasonic waves.

[0031] The coupling means may comprise a film and / or a gel pad, and optionally an adhesive for attaching the film and / or the gel pad to the device.

[0032] According to one example, the coupling means may comprise a bi-material film with one or more adherent portions positioned in a peripheral area. The bi-material film may further comprise a portion configured to couple the device to the medium and / or to allow transmission of ultrasonic waves. This latter portion may be positioned in an area where ultrasonic waves are emitted by the probe.

[0033] The device and / or its opening may comprise a stabilization means configured to optimize the stability of the device on the surface of the medium.

[0034] The stabilizing means may comprise an adherent portion on a surface of the device configured to be disposed against the surface of the medium.

[0035] The stabilizing means can therefore prevent the probe and the device from sliding on the surface of the medium. The device can therefore ensure data acquisition without unwanted movement of the probe relative to the medium during acquisition, such as for example rotation (prevented by the optional plate of the device) and transverse movement (prevented by the optional stabilizing means of the device).

[0036] The device may be configured to adjust and / or fix the angle using mechanical and / or electromechanical and / or electronic means.

[0037] The mechanical means may comprise a clutch for adjusting the angle and / or for fixing the angle.

[0038] The device may be configured for stepwise or continuous angle adjustment, for example by controlling the clutch.

[0039] The device may further comprise a temperature sensor configured to measure the temperature of the surface of the medium and / or at the surface of the probe.

[0040] The device may further comprise a pressure sensor configured to measure a pressure applied to the surface of the medium by the device.

[0041] The device may further comprise a pressure indicator configured to indicate a level of pressure applied to the surface of the medium.

[0042] The device may further comprise a plurality of local pressure sensors. Each local pressure sensor may be configured to measure a pressure applied to the surface of the medium by a different area of ​​the device. The device may optionally further comprise a plurality of local pressure indicators, each pressure indicator of which is configured to indicate a local pressure level.

[0043] The pressure indicator and / or the local pressure indicators and / or one or more temperature indicators may be arranged on an opposite side of a free surface of the device which is arranged against the medium.

[0044] The device may further comprise a tilt sensor configured to measure the angle between the probe and the surface of the medium.

[0045] The device may further comprise a display to indicate this angle.

[0046] The device may further comprise a positioning guidance system. configured to indicate a target position to the user of the probe towards the target position. Said device may thus comprise a positioning guidance system configured to indicate a target position of the probe on the surface of the medium, by guiding the probe or a user of the probe towards the target position.

[0047] The positioning guidance system may include direction indicators located on the free surface of the device and configured to indicate the direction toward the target position.

[0048] The positioning guidance system may further comprise locating means configured to locate the current position of the device relative to the environment.

[0049] The positioning guidance system may be configured to communicate with an external processing unit to transmit location data and / or to receive data of a target position and / or a direction to the target position. This external processing unit may constitute, for example, a system which collaborates / communicates with the ultrasound probe and is configured to process data from a medium acquired by the probe.

[0050] The device may further comprise an ergonomic support, for example a cushion, configured such that a hand holding the probe can rest on it.

[0051] The present disclosure also relates to an ultrasound probe for acquiring ultrasound data from a medium. The probe may be configured to collaborate and / or communicate with a system for processing the ultrasound data. The probe may comprise a device according to the present disclosure.

[0052] The present disclosure also relates to an ultrasound system, comprising a device according to the present disclosure. The system may optionally comprise an ultrasound probe for acquiring data from a medium. Furthermore, the system may comprise localization means configured to locate the position of the device relative to the medium. This system may constitute for example a system which collaborates and / or communicates with the ultrasound probe and which is configured to process data from a medium acquired by the probe.

[0053] The present disclosure also relates to a method for acquiring data from a medium by an imaging probe using a device associated with the probe in a pivotable manner, comprising the steps:

[0054] A. adjusting and / or fixing the angle between the probe and the surface of the medium by pivoting the device,

[0055] B. acquire data from the environment using the probe.

[0056] Accordingly, the angle can first be adjusted and / or fixed. Then, data can be acquired by the probe. Thus, it is possible to acquire data at a stable tilt angle.

[0057] Steps A and B may be repeated.

[0058] The method may further comprise the steps:

[0059] CL change a level of deformation of the medium applied by the device, and / or

[0060] C2. change the angle.

[0061] Steps C1 and / or C2 can be carried out after step B.

[0062] Step B can be repeated after step CL. Therefore, by changing the deformation level according to step C1, and repeating step B, data can be acquired at two different deformation levels.

[0063] In the case where steps B and C1 are repeated, the data can be acquired at more than two different deformation levels. Such a method can be useful for example in an NL-SWE mode.

[0064] Step B may also be repeated after step C2. Therefore, by changing the tilt angle according to step C2, and repeating step B, data may be acquired at two different tilt angles of the probe.

[0065] In the case where steps B and C2 are repeated, the data may be acquired at more than two different tilt angles. Such a method may be useful, for example, in a 3D image collection mode which is based on acquiring a set of 2D image data of a medium at different angles of the probe relative to the medium.

[0066] Optionally, the method may also comprise a reiteration of steps A, B and C1 and / or C2, wherein, in the additional step A, the angle is adjusted and / or fixed, before the data is acquired in step B.

[0067] However, an adjustment and / or fixing of the angle can also be carried out already in step C2. Therefore, step C2 can also be understood as a reiteration of step A.

[0068] The characteristics and advantages of the invention will appear on reading the description which follows, given solely as a non-limiting example, and made with reference to the appended figures. In particular, the examples illustrated in the figures can be combined unless there is a clear inconsistency. Brief description of the figures

[0069] [Fig.l] schematically shows a conventional probe in a first side view.

[0070] [Fig.2a] schematically shows a perspective view of a first embodiment of a device according to the present disclosure.

[0071] [Fig.2b] schematically shows a first sectional view of the device of [Fig.2a], in which a pivoting movement of the device is illustrated.

[0072] [Fig.3a] schematically shows a first side view of a second embodiment of a device according to the present disclosure, wherein the device may have a coupling film.

[0073] [Fig.3b] schematically shows a first side view of a third embodiment of a device according to the present disclosure, wherein the device may have a gel pad.

[0074] [Fig.4a] schematically shows a second side view of a fourth embodiment of a device according to the present disclosure, wherein the device may have a stabilizing means configured to optimize the stability of the device on the surface of the medium.

[0075] [Fig.4b] schematically represents a bottom view of the device of [Fig.4a].

[0076] [Fig.5] schematically shows a first side view of a fifth embodiment of a device according to the present disclosure, wherein the device may have mechanical means for step / bearing pivoting and / or indexing.

[0077] [Fig.6a] schematically shows a second side view of a sixth embodiment of a device according to the present invention, in which the device can be configured for continuous pivoting and lockable in any position

[0078] [Fig.6b] schematically shows a first side view of the device of [Fig.6a] with an optional tilt sensor.

[0079] [Fig.6c] schematically shows a top view of the device of Figures 6a and 6b with an optional tilt indicator.

[0080] [Fig.7a] schematically shows a first side view of a seventh embodiment of a device according to the present disclosure, in which the device may have pressure sensors and pressure indicators.

[0081] [Fig.7b] schematically shows a top view of the device of [Fig.7a] and in particular the arrangement of the pressure indicators.

[0082] [Fig.8a] schematically shows a first side view of an eighth embodiment of a device according to the present disclosure, in which the device may have a positioning sensor and direction indicators.

[0083] [Fig.8b] schematically shows a top view of the device of [Fig.8a].

[0084] [Fig.9] schematically shows a first side view of a ninth embodiment of a device according to the present disclosure, in which the device may have an ergonomic support for resting the wrist. Description of the embodiments

[0085] In the various figures, provided for illustration purposes, the same reference numerals designate identical or similar elements. The different embodiments may be combined in any way, unless otherwise described.

[0086] [Fig.l] schematically illustrates a conventional probe in a first side view. Said probe 200 can be used (i.e., equipped or associated) with a device according to the present disclosure (not illustrated in [Fig.l]).

[0087] The probe is configured to observe a medium by acquiring data from the medium, for example from a human or animal body. For example, the probe may be an ultrasonic probe. In other words, the probe may comprise one or more ultrasonic transducers. However, the probe may also comprise another type of imaging sensor. The probe may therefore also constitute an imaging probe in any application, which requires a stable inclination and / or position of the probe relative to the observed medium during data acquisition. According to another example, the The probe may include one or more laser optical devices. Such a probe may also be configured for opto-acoustic imaging using ultrasonic transducers and laser optical devices.

[0088] Generally, the probe may be configured for diagnostic and / or therapeutic use. For example, the probe may be configured to acquire data from a medium, e.g., for imaging the medium, to enable diagnosis. Further, the probe may be configured for a non-invasive method of focusing acoustic waves into a medium, e.g., a dissipative heterogeneous medium comprising a substantially homogeneous medium (e.g., the brain) surrounded at least partially by a dissipative aberrator layer (e.g., the skull). The acoustic waves may be emitted from outside the aberrator layer and focused into the substantially homogeneous medium.

[0089] Furthermore, the probe may be configured to enable visualization and guidance of the insertion of a biopsy needle in real time. For example, the probe may collaborate with a needle guide that may, for example, attach to the probe for needle guidance. Data acquired by the probe may in particular be used to monitor the biopsy. According to another example, the needle navigation may superimpose in real time ultrasound and other imaging modes on volumes from cross-sectional modalities (MRI, CT, PET or 3D-US).

[0090] The probe may also be used to monitor and / or guide the implementation of biopsy markers into the medium.

[0091] The probe may have different shapes and / or transducer arrays. For example, the probe may be a two-dimensional probe (e.g. with a linear array of transducers), a “1.5D" (for example comprising several types of transducers thus offering different functionalities, for example a first type of transducers in the form of a linear network allowing an ultrasound image, and a second type of transducers intended for the generation of an internal mechanical stress allowing the propagation of a shear wave in the medium, and arranged linearly on either side of the first type of transducers), an "asymmetric" probe (for example with a network with a much greater number of elements in one dimension than in the other), a three-dimensional probe (for example with a network with the same number of elements in both dimensions), a curved probe, a matrix probe, or an endocavity probe. The probe 200 can communicate with an ultrasound system and which is configured to process data from a medium acquired by the probe.For example, it can be part of an ultrasound system. This system can be used, for example, in a medical context for the examination of organs and / or tissues.

[0092] The probe may include a first wider side (illustrated in [Fig. 1], for example) and a second narrower side (illustrated in Figures 3a, 3b, for example).

[0093] The probe includes a casing 205 which is a shell enclosing the various components of the probe. The casing 205 delimits an interior from an exterior of the probe. The casing is for example generally rigid to facilitate handling of the probe. The casing 205 includes according to one example a gripping portion 206, generally ergonomic, by which a user handles the probe with one hand. The casing 205 may further comprise a lower end 201, where for example a cable or an interface may connect the probe to an external processing unit of the system.

[0094] In addition, the probe has an upper end or head portion 202. This upper end may be composed of a wave transmission surface 203 which is adapted to be in contact with the surface of a medium, for example the skin. The wave transmission surface 203 is shown in the figures as being generally flat, or even with a slight curvature, planar or in 2D. Wave transmission surface 203 may however have various shapes in 3D, possibly with a pronounced curvature.

[0095] The envelope 205 is made according to an example of one or more electrically insulating materials such as for example plastic, for example of the ABS type. The envelope may be made up of several assembled parts. For example the envelope (without the wave transmission surface 203) could be made up of a shell of a single piece of plastic leaving an opening suitable for receiving the emission and / or reception surface, thus connected and closing the envelope. The envelope 205 may be rigid or flexible, in whole or in part. According to an example, the emission and / or reception surface is made up of one or more flexible polymer(s).

[0096] The probe 200 includes within the casing one or a plurality of transducers, for example a plurality of acoustic wave emitting and / or receiving elements arranged at a first end 202 of the probe 200. In a variant, it is possible for the probe 200 to comprise a single emitting and / or receiving element. According to one example, the plurality of emitting and / or receiving elements 120 comprises a plurality of piezoelectric elements. The plurality of transducers or emitting and / or receiving elements may be arranged so as to form an emission line or front, or an emission surface.

[0097] Further, the probe may include attachment means 204 on its second narrower sides that are configured to attach any accessory or equipment.

[0098] [Fig.2a] schematically represents a perspective view of a first mode of producing a device 100 (in this example accompanied by the probe) according to the present disclosure. The device 100 may be configured to be associated with a probe 200. The device is further configured to be held against or to be in contact with a surface of the medium, when observing the medium. Thus, the device may be arranged at the upper end 202 of the probe. More particularly, the device may be arranged at the lens 203 of the probe, i.e. at the location where the ultrasonic waves can be emitted by the probe.

[0099] The device is in particular configured to be associated with the probe 200 in a pivotable manner, so that an angle between the probe and the surface of the medium can be adjusted by pivoting the probe relative to the device. The device can remain during this pivoting movement in the same contact position on the surface of the medium.

[0100] The device may be configured to be pivotable about at least one axis relative to the probe, in particular about an axis that corresponds to an axis of a transducer line of the probe. Said axis may extend along the first wider side of the probe, as illustrated for example in [Fig.2a]. However, the device may also be configured to be pivotable about two axes, which extend for example along the first wide side and the direction of the waves, respectively.

[0101] The device 100 may be configured to be attached and / or fixed to the probe 200. For example, it may comprise two holding elements 101 which are configured to be fixed to the probe while maintaining the rotational movement, in particular to its fixing means 204.

[0102] The device 100 may further comprise a plate 103 configured to be disposed against the surface of the medium and to stabilize the probe with a selected angle of inclination between the probe and the surface of the medium. In other words, the device 100 may have a planar surface that is disposed on the surface of the medium to be studied (i.e., be disposed on the surface 203 of the probe). Said plate or surface 103 must be larger than the cross-section of the surface 203 of the probe, in order to stabilize an inclined position of the probe relative to the surface of the medium. Furthermore, the plate 103 may serve to provide a homogeneous pressure on the surface of the medium. Said pressure may thus lead to a homogeneous deformation of the medium.Said homogeneous deformation can be advantageous for different imaging modes, for example for non-linear shear wave elastography (NL-SWE), as described above and in WO2021116326A2.

[0103] The device 100 must further comprise an opening 104 with dimensions configured to allow the transmission of the ultrasonic waves emitted and / or received by the probe 200. Said opening 104 may in particular be arranged in the plate 103, for example in the form of a through hole. The dimensions of the opening may be predefined according to the size of the transducer array within the probe, in particular depending on the cross-section required for unobstructed wave transmission.

[0104] The device 100, or at least the plate 103, may be made of any rigid material, for example a polymer or a plastic. The material of the plate may be chosen such that a homogeneous deformation of the medium can be obtained, when the plate applies pressure to the surface of the medium.

[0105] [Fig.2b] schematically represents a first sectional view of the device of [Fig.2a], in which a pivoting movement of the device relative to the probe is illustrated. In a default position 200a, the tilt angle may be 0°. This means that the probe 200 may be arranged perpendicular to the surface of the device 100 and thus to a medium surface on which the device (i.e. the tray 103) may be placed.

[0106] The device 100 is configured such that the probe can be pivoted in at least one or both pivoting directions, as shown in [Fig.2b], for example to a position 200b and further to a position 200c. The device 100 can thus be configured to allow a tilt angle of up to 20°, or up to 30° or even up to 45° (for example in each of the two pivoting directions).

[0107] The fixing means 101 are only shown schematically in [Fig.2b]. These fixing means may have different configurations, as described in the context of the other embodiments.

[0108] [Fig.2b] further schematically shows the opening 104 in the tray 103. Said opening 104 can be formed in such a way that transmission of the ultrasonic waves is possible at every possible angle of inclination of the device. The opening can for example have the shape of an inverted "V" (seen from the first sectional view, as for example shown schematically in [Fig.2b]). Said shape can thus have a narrower opening towards the probe and a wider opening towards the middle.

[0109] [Fig.3a] schematically shows a first side view of a second embodiment of a device according to the present disclosure, wherein the device may have a coupling film. The second embodiment may substantially correspond to the first embodiment.

[0110] Further, the device may comprise coupling means 111 on a surface facing the medium. Said portion may be configured to support the transmission of ultrasonic waves positioned in an area where the ultrasonic waves are emitted by the probe. Due to the coupling means, it may not be necessary to apply an additional gel to the surface of the medium, when the data is acquired. Due to its properties, the risk of the device slipping on the surface may be reduced. Similarly, the risk of infectious contamination due to the application of a gel can also be reduced.

[0111] In the example of [Fig.3a], the coupling means may consist of a gel pad and / or a film 111. This gel pad and / or this film 111 may cover the entire surface of the tray 103 or only a part of it. For example, the gel pad may only cover or fill the opening 104 (not shown in [Fig.3a]). Nevertheless, gel may be applied - on the surface of the tray and / or in the opening (for example in the case, where there is no film).

[0112] The coupling means may also comprise a bi-material film 111 with an adherent portion positioned in a peripheral area around the opening. The bi-material film 111 may further comprise a coupling portion (e.g., a film) in a central area covering the opening.

[0113] [Fig.3b] schematically shows a first side view of a third embodiment of a device according to the present disclosure, wherein the device may have gel. The third embodiment may correspond substantially to the first or second embodiment.

[0114] Furthermore, the device may comprise a coupling means 112 on a surface facing the medium. In the example of [Fig.3b], the coupling means may consist of a gel film 112 covering or filling the opening 104. The gel pad may, however, also cover the cross-section of the opening on the surface of the device facing the medium. It should be noted that [Fig.3b] only schematically illustrates the gel pad. The gel pad may in particular be planar with the surface of the plate 103 facing the medium, i.e. it does not protrude from this surface.

[0115] [Fig.4a] schematically shows a second side view of a fourth embodiment of a device according to the present disclosure, wherein the device may have a stabilizing means configured to optimize the stability of the device on the surface of the medium, for example in the form of an adherent portion with anti-slip means to reduce slippage of the device and adaptable attachment points. [Fig.4b] schematically represents a bottom view of the device of [Fig.4a] and in particular the arrangement of the anti-slip points. Said bottom view may in particular show the surface of the device which is configured to face the medium. The fourth embodiment may correspond substantially to any of the aforementioned embodiments.

[0116] The device may further comprise a stabilizing means configured to optimize the stability of the device on the surface of the medium, for example in the form of adherent portions 113 on a surface of the device configured to be disposed against the surface of the medium. In the example of Figures 4a and 4b, the adherent portions 113 may be in the form of anti-slip points 113. The points 113 may, for example, be made of a rubber material. As illustrated in [Fig. 4b], the adhesive parts may in particular be arranged in a peripheral area around the opening. In this way, the adhesive parts can reliably prevent the device from sliding on the surface of the medium. At the same time, they do not disturb the transmission of ultrasonic waves through the opening.

[0117] The device may further comprise holding arms 121a, 121b configured to be attached to the probe, for example to its attachment means 204. The holding arms 121a, 121b may protrude from a rear surface of the plate 103 which is opposite the surface which faces the middle.

[0118] The holding arms may for example comprise rods projecting from the arms towards the attachment means 204 of the probe. The rods may be formed so as to be able to be received and pivotally attached to the attachment means 204.

[0119] The device may be configured for quick attachment and / or detachment to / from the probe. In the illustrated example, at least the holding arm 121a may be configured to be transversely displaced on the rear surface, to enable attachment of the device to probe shells of different sizes. According to another example, the device may comprise a vice system. In this example, at least the holding arm 121b may be configured to be pivotally displaced on the rear surface of the tray, so that the holding arm may be clipped onto and unclipped from the probe. Accordingly, the device may be configured for quick attachment and release. However, both holding arms may also have the displacement and / or pivoting function described above.

[0120] [Fig.5] schematically shows a first side view of a fifth embodiment of a device according to the present disclosure, wherein the device may have mechanical means for stepwise pivoting and / or indexing. The fifth embodiment may correspond substantially to any of the aforementioned embodiments.

[0121] As schematically illustrated, at least one of the holding arms may comprise a gear mechanism 122 (or any other mechanism) which is configured to allow only step / bearing and / or indexing (i.e., notched) pivoting. In other words, the mechanism 122 may allow attachment of the device to the probe only at predefined tilt angles.

[0122] [Fig.6a] schematically shows a second side view of a sixth embodiment of a device according to the present disclosure, wherein the device may allow continuous pivoting. Alternatively, the device may comprise electromechanical (or other mechanical) means configured for holding in position and / or adjustment of the angle of the device. The sixth embodiment may correspond substantially to one of the aforementioned embodiments.

[0123] Further, at least one of the holding arms may include a clutch mechanism 123 (or other mechanism) that is configured to allow continuous pivoting of the device relative to the probe. In addition, the mechanism 123 may allow holding of the device at any selectable tilt angle, for example by actuating the clutch. Accordingly, the clutch mechanism may provide an alternative to the gear mechanism 122 of [Fig.5].

[0124] The clutch mechanism may for example comprise a first clutch disc that is configured to be attached to the probe, such that rotation of the first clutch disc relative to the probe can be prevented. A second clutch disc may be attached to the plate 103, preventing rotation of the second clutch disc relative to the plate but allowing transverse movement of the second clutch disc relative to the plate. This transverse movement allows the clutch to be actuated.

[0125] [Fig.6b] schematically represents a first side view of the device of [Fig.6a] with an optional tilt sensor 124. The tilt sensor may for example be integrated into the clutch mechanism 123. The tilt sensor may be configured to measure a tilt angle of the device relative to the probe. The tilt sensor may be an electronic sensor.

[0126] [Fig.6c] schematically represents a top view of the device of FIGS. 6a and 6b with an optional tilt indicator 125. The tilt indicator may for example be an electronic display. The indicator may be configured to display the tilt angle, as measured by the tilt sensor 124.

[0127] [Fig.7a] schematically represents a first side view of a seventh embodiment of a device according to the present disclosure, in which the device may comprise pressure sensors 131 and / or temperature sensors 132. The seventh embodiment may correspond substantially to any of the aforementioned embodiments.

[0128] Thus, the device may comprise at least one pressure sensor which is configured to measure a pressure applied via the device (in particular its plate 102) on the surface of the medium. This pressure value may be used for example as a guide in an NL-SWE method (or more generally to determine a level of deformation of the medium).

[0129] However, as shown in [Fig.7a], the device may also comprise a plurality of pressure sensors 131. Said sensors 131 may be arranged in different areas of the plate 103, for example around the opening 104. Thus, said sensors may be configured to measure a local pressure applied by the respective area of ​​the tray 103 to the surface of the medium. In one example, the device may include four pressure sensors 131 (or any other number) configured to measure the local pressure on the four sides of the tray 103 (e.g. rectangular in shape). Accordingly, the pressure sensors 131 may be located to correspond to the locations of the pressure indicators 133, as illustrated in [Fig.7b].

[0130] The device may also comprise one or more temperature sensors 132. These sensors may be configured to measure the temperature of the surface of the medium or the surface of the probe. The measured temperature may be used, for example, to monitor possible heating of the medium due to the ultrasonic waves emitted by the probe. For example, in the case where the temperature exceeds a predefined value, information or an alarm may be signaled to the user of the probe.

[0131] The device may also include adherent portions in the form of anti-slip points 113, as described in the context of Figures 4a and 4b.

[0132] [Fig.7b] schematically represents a top view of the device of [Fig.7a]. [Fig.7b] shows in particular the arrangement of the pressure indicators.

[0133] The device may comprise at least one pressure indicator 133 which is configured to indicate a pressure applied with the device, in particular its plate 102, on the surface of the medium. Said pressure value may be determined for example by the pressure sensor 132. The pressure indicator may comprise or consist of a luminous element, for example an LED. By changing its light color, the illumination element may thus indicate a pressure level.

[0134] The pressure indicator may be disposed on the rear surface of the plate 103.

[0135] In another example, the color of the light may indicate a qualitative pressure level. This qualitative pressure level may be determined, for example, by a comparison between an actual pressure (e.g., measured by the pressure sensor) and a target pressure. This target pressure may be determined in the context of an NL-SWE method, for example. In this method, different levels of deformation of the medium may be required during data acquisition by the probe. Based on a required deformation level, a respective target pressure may be determined. In one example, the qualitative light colors may include: "green" (representing acceptable pressure), "red" (representing too much pressure), and any other color such as yellow or blue (representing too little pressure).

[0136] However, as shown in [Fig.7b], the device may also comprise a plurality of pressure indicators 133. These indicators 133 may be arranged in different areas of the plate 103, for example around the area covered by the cross-section of the probe seen from above (see the view of [Fig.7b]). Said indicators may be configured to indicate local pressure as measured by respectively arranged pressure sensors 131. In one example, the device may include four pressure indicators 133 arranged and configured to indicate local pressure on the four sides of the tray 103 (e.g. rectangular in shape).

[0137] [Fig.8a] schematically represents a first side view of an eighth embodiment of a device according to the present disclosure, in which the device may comprise a positioning sensor and direction indicators. The eighth embodiment may correspond substantially to any of the aforementioned embodiments.

[0138] The device may comprise a positioning sensor 134, for example in the form of an RFID tag, sensors of a magnetic field, and / or one or more cameras. The positioning sensor may for example transmit the acquired data to the system, with which the probe communicates. The system may then implement a localization method, as described below.

[0139] The RFID tag may be configured to emit a signal by which the device can be located. Said location information may be used in conjunction with external information of a target region on the surface of the medium, in order to determine a required direction of movement of the device. The target region may be a region where data is to be acquired by the probe. A target region may be identified by a computer-implemented algorithm executed by the system, for example an AI (artificial intelligence) based algorithm.

[0140] The camera may be configured to scan the surface of the medium. Based on the camera data, a current position of the device relative to the surface of the medium may be determined. Said location information may be used in conjunction with external information of a target region on the surface of the medium, in order to determine a required direction of movement of the device.

[0141] It is also possible to use the data acquired by the probe to determine the current position of the device relative to the surface of the support. In this case, the positioning sensor 134 may not be necessary.

[0142] [Fig.8b] schematically represents a top view of the device of [Fig.8a]. In particular, [Fig.8b] shows direction indicators 135.

[0143] The device may include at least one direction indicator 135 that is configured to indicate a direction toward a target region. The direction indicator may include or consist of a display or a lighting element, for example, an LED. By changing its light color, the lighting element may indicate whether a target region has been reached.

[0144] The direction indicator may be disposed on the rear surface of the tray 103.

[0145] However, as illustrated in [Fig.8b], the device may also comprise a plurality of direction indicators 133. These indicators 135 may be arranged in different areas of the tray 103, for example around the area covered by the cross-section of the probe seen from above (see the view of [Fig.7b]). Said indicators may be lighting elements. In one example, the device may comprise four direction indicators 135 in the form of illuminated arrows. The four direction indicators 135 may be arranged on the four sides of the tray 103 (for example rectangular in shape). By lighting the respective arrow(s), a user of the probe may be guided to the target region.

[0146] [Fig.9] schematically represents a first side view of a ninth embodiment of a device according to the present disclosure, wherein the device may comprise an ergonomic support 141, for example an ergonomic cushion and / or handle. The ergonomic support may be configured such that a hand of a user can hold the probe and at the same time rest on the cushion. As a result, the use of the probe is more comfortable for a user, when the device is attached. At the same time, the user's hand can apply pressure via the ergonomic support on the surface of the support.

[0147] The ergonomic support 141 can be positioned on the rear surface of the tray 103. The tray can be made of any rigid material (such as plastic) and can therefore lead to even pressure, even if the ergonomic support is flexible.

[0148] Further, the tray may be enlarged to provide a larger rear face area on at least one side of the probe. Accordingly, the ergonomic support may be placed on said enlarged area and may therefore also have a larger and more comfortable size.

[0149] All of these embodiments and other examples as described above are given solely by way of non-limiting example, and may be combined and / or modified within the scope of the following claims.

Claims

Claims

1. A device (100) for an ultrasound probe (200) for acquiring ultrasound data of a medium, wherein the device is configured to be associated with the probe in a pivotable manner, such that the angle between the probe and a surface of the medium can be adjusted and / or fixed by pivoting the device, the device further comprising: - a plate (103) configured to be disposed against the surface of the medium and to stabilize the angle between the probe and the surface of the medium, such that the plate ensures homogeneous deformation of the medium during the acquisition of the ultrasound data, wherein the plate comprises: - an opening allowing the transmission of the ultrasound waves without disturbing the homogeneous deformation of the medium, and - a coupling means (112) covering or filling said opening to allow the transmission of the ultrasound waves.

2. The device of claim 1, further comprising: adaptable means configured to attach the device to different probe shells.

3. The device according to any one of the preceding claims, wherein the probe is configured to emit ultrasonic waves (203) and / or comprises a transducer configured to emit ultrasonic waves on a first side of the probe, and the device is configured to be positioned and / or attached on the first side of the probe in a pivotable manner.

4. The device of any preceding claim, wherein the coupling means comprises a film and / or a gel pad, and optionally an adhesive for attaching the film and / or the gel pad to the device.

5. The device according to any one of the preceding claims, wherein the coupling means comprises a bi-material film with one or more adherent portions (113) positioned in a peripheral area and a portion configured to couple the device to the medium and / or to allow transmission of ultrasonic waves and positioned in an area where ultrasonic waves are emitted by the probe.

6. The device according to any one of the preceding claims, wherein the device and / or its opening comprises a stabilizing means configured to optimize the stability of the device on the surface of the medium.

7. The device according to the preceding claim, wherein the stabilizing means comprises an adherent portion on a surface of the device configured to be disposed against the surface of the medium.

8. The device according to any one of the preceding claims, wherein the device is configured to adjust and / or fix the angle using mechanical and / or electromechanical and / or electronic means, and / or the mechanical means comprise a clutch (123) for adjusting the angle and / or for fixing the angle, and / or the device is configured for stepwise or continuous angle adjustment.

9. The device according to any one of the preceding claims, further comprising at least one of the following: a tilt sensor (124) configured to measure the angle between the probe and the surface of the medium, a display for indicating the angle, a temperature sensor (132) configured to measure the temperature of the surface of the medium and / or at the surface of the probe, a pressure sensor (131) configured to measure a pressure applied to the surface of the medium by the device, a pressure indicator configured to indicate a level of pressure applied to the surface of the medium, and / or a plurality of local pressure sensors, each configured to measure a pressure applied to the surface of the medium by a different area of ​​the device, and optionally a plurality of local pressure indicators, each pressure indicator of which is configured to indicate a level of local pressure.

10. The device according to the preceding claim, wherein the pressure indicator and / or local pressure indicators are disposed on an opposite side of a surface of the device that is configured to be disposed against the medium.

11. The device of any preceding claim, further comprising: a positioning guidance system configured to indicate a target position of the probe on the surface of the medium, guiding the probe or a user of the probe to the target position.

12. The device according to the preceding claim, wherein the positioning guidance system comprises: direction indicators (133) located on the surface of the device and configured to indicate the direction towards the target position, and / or location means configured to locate the position of the device relative to the medium.

13. The device according to any one of the preceding claims 11 or 12, wherein the positioning guidance system is configured to communicate with an external processing unit to transmit location data and / or to receive data of a target position and / or a direction to the target position.

14. The device of any preceding claim, further comprising: an ergonomic support (141) configured such that a hand holding the probe can rest thereon.

15. An ultrasound probe for acquiring ultrasound data from a medium, configured to cooperate with a system for processing the ultrasound data, the probe comprising a device according to any preceding claim.

16. An ultrasound system, comprising: a device according to any one of preceding claims 1 to 14, optionally an ultrasound probe for acquiring data from a medium, and locating means configured to locate the current position of the device relative to the medium.

17. A method for observing a medium by an imaging probe using a device associated with the probe in a pivotable manner, the device comprising a tray (103) configured to be arranged against the surface of the medium and to stabilize the angle between the probe and the surface of the medium, said device comprising: - an opening allowing the transmission of ultrasonic waves without disturbing the homogeneous deformation of the medium, and - a coupling means (112) covering or filling said opening to allow the transmission of ultrasonic waves, the method comprising the steps: A. adjusting and / or fixing the angle between the probe and the surface of the medium by pivoting the device, the plate being arranged against the surface of the medium such that the plate ensures a homogeneous deformation of the medium during the acquisition of the ultrasonic data, B. acquiring data from the medium using the probe, the ultrasonic waves being transmitted through the opening and the coupling means.

18. The method according to the preceding claim, further comprising the steps: C1. changing a level of deformation of the medium applied by the device, and / or C2. changing the angle.

19. The method of claim 18, comprising at least one of the following reiterations: repeating steps A, B, repeating step B after step C1 and / or C2, repeating steps B, and at least one of C1, C2, and repeating steps A, B, and at least one of C1, C2.

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