Wearable receiving device

Abstract

The utility model relates to a wearable receiving device, and belongs to the technical field of medical instruments. The wearable receiving device comprises an eye receiving assembly which comprises an eye coil, a first tuning unit and at least one first passive detuning unit, and the first tuning unit and the first passive detuning unit are connected to the eye coil in series; the two ear receiving assemblies are both connected with the eye receiving assembly, each ear receiving assembly comprises an ear coil, a second tuning unit and at least one second passive detuning unit, and the second tuning unit and the second passive detuning unit are both connected to the ear coil in series. According to the wearable receiving device, the magnetic induction lines in the coverage range of the wireless resonant ring are collected to enhance the magnetic field of the specific area, so that the effect of changing the distribution of the receiving field is achieved, and the uniformity of the distribution of the magnetic field is improved. Meanwhile, the passive detuning unit is arranged, so that the influence of the wearable receiving device on a transmitting field can be greatly reduced.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a wearable receiving device. Background Art

[0002] In a high-field magnetic resonance imaging environment, due to the short wavelength, the standing wave effect is more obvious. Therefore, the electromagnetic field distribution is uneven, resulting in a decrease in imaging quality and even the generation of dark bands. For coils with a fixed structure, such as head coils, due to their structural characteristics, their non-uniformity in high-field magnetic resonance is more obvious, thus affecting the imaging quality of magnetic resonance equipment. Utility Model Content

[0003] Based on this, it is necessary to provide a wearable receiving device that can improve the imaging quality of magnetic resonance equipment.

[0004] In a first aspect, this application proposes a wearable receiving device, including: an eye receiving component, the eye receiving component includes: an eye coil, a first tuning unit, and at least one first passive detuning unit, the first tuning unit and the first passive detuning unit are both connected in series on the eye coil; two ear receiving components, both of the two ear receiving components are connected to the eye receiving component, the ear receiving component includes: an ear coil, a second tuning unit, and at least one second passive detuning unit, the second tuning unit and the second passive detuning unit are both connected in series on the ear coil.

[0005] For the above wearable receiving device, by connecting the first tuning unit and the first passive detuning unit in series on the eye coil, and connecting the second tuning unit and the second passive detuning unit in series on the ear coil, during use, it is worn on the user's head and placed in the head coil for magnetic resonance scanning. The wearable receiving device of this application can converge the magnetic induction lines within the coverage of the wireless resonance loop to enhance the magnetic field in a specific area, thereby achieving the effect of changing the receiving field distribution and improving the uniformity of the magnetic field distribution. At the same time, by setting the passive detuning unit, the influence of the wearable receiving device on the transmitting field can be greatly reduced.

[0006] In one embodiment, the eye receiving component further includes: a decoupling unit, the decoupling unit is connected in series on the eye coil, and the decoupling unit divides the eye coil into two co-edge coils with the same length.

[0007] In one embodiment, the first passive detuning unit is set to two, and each co-edge coil is connected in series with one first passive detuning unit.

[0008] In one embodiment, the first passive detuning unit and / or the second passive detuning unit includes: a resonant capacitor, an inductor, a first diode, and a second diode. One end of the inductor is connected to one end of the resonant capacitor, and the other end of the inductor is respectively connected to the positive electrode of the first diode and the negative electrode of the second diode. The negative electrode of the first diode and the positive electrode of the second diode are both connected to the other end of the resonant capacitor.

[0009] In one embodiment, the eye coil and / or the ear coil is a circular loop formed by copper foil or flexible wire.

[0010] In one embodiment, the wearable receiving device further includes: a telescopic member, and the ear receiving assembly is connected to the eye receiving assembly through the telescopic member.

[0011] In one embodiment, the eye receiving assembly is provided with an opening.

[0012] In a second aspect, the present application further provides a wearable receiving device, including: a flexible body that can fit the face of a detection object and is provided with an observation window; there is one observation window, which extends from the left eye area to the right eye area of the detection object; or, there are two observation windows, which respectively correspond to the left eye area and the right eye area of the detection object; an eye receiving assembly disposed in the flexible body; the eye receiving assembly includes an eye coil, a first tuning unit, and at least one first passive detuning unit, and the eye coil is disposed around the outer periphery of the observation window; both the first tuning unit and the first passive detuning unit are connected in series on the eye coil.

[0013] For the above-mentioned wearable receiving device, by connecting the first tuning unit and the first passive detuning unit in series on the eye coil and disposing them in the flexible body, during use, it can be worn on the user's head and placed in the head coil for magnetic resonance scanning. The wearable receiving device of the present application converges the magnetic induction lines within the coverage range of the wireless resonant loop to enhance the magnetic field in a specific area, thereby achieving the effect of changing the receiving field distribution and improving the uniformity of the magnetic field distribution. At the same time, by setting the passive detuning unit, the influence of the wearable receiving device on the transmitting field can be greatly reduced.

[0014] In one embodiment, the wearable receiving device further includes: two ear receiving assemblies disposed on the left and right sides of the detection object, and both of the ear receiving assemblies are connected to the flexible body; the ear receiving assemblies and the flexible body form a head-mounted structure adapted to the head of the detection object.

[0015] In one embodiment, the wearable receiving device further includes: a connecting band, both ends of the connecting band are respectively connected to the two ear receiving components and wrap around the back region of the detection object's head; alternatively, both ends of the connecting band are respectively connected to the left and right sides of the flexible body and wrap around the back region of the detection object's head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic diagram of a wearable receiving device in one embodiment;

[0018] Figure 2 Module schematic diagram of an eye receiving component in one embodiment;

[0019] Figure 3 Module schematic diagram of an ear receiving component in one embodiment;

[0020] Figure 4 Module schematic diagram of an eye receiving component in another embodiment;

[0021] Figure 5 Schematic diagram of a wearable receiving device in another embodiment;

[0022] Figure 6 Circuit diagram of a passive detuning unit in one embodiment;

[0023] Figure 7 Circuit diagram of an eye receiving component in one embodiment;

[0024] Figure 8 Circuit diagram of an eye receiving component in another embodiment;

[0025] Figure 9 Circuit diagram of an ear receiving component in one embodiment;

[0026] Figure 10 Schematic diagram of a wearable receiving device in yet another embodiment;

[0027] Figure 11 Schematic diagram of a magnetic resonance device in one embodiment;

[0028] Figure 12 Schematic diagram of a magnetic resonance device in another embodiment;

[0029] Figure 13 Schematic diagram of signal-to-noise ratio in one embodiment;

[0030] Description of reference numerals:

[0031] Eye receiving component 100, ear receiving component 200, eye coil 110, first tuning unit 120, first passive detuning unit 130, decoupling unit 140, common-side coil 111, ear coil 210, second tuning unit 220, second passive detuning unit 230, resonant capacitor 310, inductor 320, first diode 330, second diode 340, telescopic member 410, connecting band 420, opening 430, head coil 510, wearable receiving device 520. Detailed implementation manners

[0032] To facilitate understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0034] It can be understood that the terms "first", "second", etc. used in this application can be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, the first resistor can be called the second resistor, and similarly, the second resistor can be called the first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0035] It can be understood that "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if there is an electrical signal or data transfer between the connected circuits, modules, units, etc.

[0036] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprises / comprising", "has / including", etc. specify the presence of the stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the related listed items.

[0037] As described in the background art, the head coil in the prior art is generally arranged in a structure with the eyes exposed to avoid inducing claustrophobia in the user. At the same time, the size of the coil close to the face is designed to be relatively large to avoid the eye sockets. However, such a structure will result in a low Q value of the coil on the face, and the magnetic field strength within its coverage will also be further reduced, and the overall electromagnetic field distribution of the coil is uneven, thus affecting the imaging quality of the magnetic resonance device. In the related art, the image quality produced by such a magnetic resonance device is poor, and there are still problems of field non-uniformity and obvious dark bands after shimming and sequence optimization. From the results of the FieldMap, the field strength of the transmit field (B1+) meets the requirements and the field distribution uniformity is good. Therefore, it is considered to optimize the receive field (B1-) to improve the imaging quality.

[0038] For the above reasons, the present application provides a wearable receiving device, which can change the effect of the receive field distribution, improve the uniformity of the magnetic field distribution, and thus improve the imaging quality.

[0039] In one embodiment, as Figures 1 to 3 shown, the present application proposes a wearable receiving device 520, including: an eye receiving component 100 and two ear receiving components 200. The eye receiving component 100 includes: an eye coil 110, a first tuning unit 120, and at least one first passive detuning unit 130. The first tuning unit 120 and the first passive detuning unit 130 are both connected in series to the eye coil 110; the two ear receiving components 200 are both connected to the eye receiving component 100. The ear receiving component 200 includes: an ear coil 210, a second tuning unit 220, and at least one second passive detuning unit 230. The second tuning unit 220 and the second passive detuning unit 230 are both connected in series to the ear coil 210.

[0040] Specifically, the wearable receiving device 520 of the present application includes an eye receiving component 100 and two ear receiving components 200. The eye receiving component 100 is used to cover the eye position of the user during use, and the ear receiving components 200 are used to be worn on the ear positions of the user. By combining the eye receiving component 100 and the two ear receiving components 200, the wearable receiving device 520 can be worn on the head of the user.

[0041] The eye receiving component 100 includes: an eye coil 110, a first tuning unit 120, and at least one first passive detuning unit 130. The eye coil 110, the first tuning unit 120, and the first passive detuning unit 130 can all be arranged in an eye bracket to play a role in fixing and supporting. In some embodiments, the eye bracket can be made of a flexible material (such as nylon cloth) to improve the comfort of the user when wearing. In some other embodiments, the eye bracket can also be made of a plastic material, and by setting a buffer sponge on the fitting surface with the user, the comfort of the user when wearing can be improved. The eye coil 110 can be set as a rectangular curved surface to better fit the user. In some embodiments, the eye coil 110 is a rectangular curved surface of 11 cm × 21 cm. In some embodiments, the eye coil 110 is an annular loop formed by copper skin or flexible wire. As Figure 2 shown, the first tuning unit 120 is connected in series in the eye coil 110 and is used to adjust the resonance frequency of the eye coil 110. In some embodiments, the first tuning unit 120 includes at least one tuning capacitor. As Figure 2 shown, the first passive detuning unit 130 is connected in series in the eye coil 110 and has a strong inhibitory effect on the current that conforms to its resonance frequency. By adjusting the resonance frequency of the first passive detuning unit 130, the first passive detuning unit 130 can only affect the receiving field (B1-), and has no effect on the transmitting field (B1+). The number of the first passive detuning units 130 can be set as needed, and its position in the eye coil 110 can also be adjusted as needed.

[0042] The ear receiving component 200 includes: an ear coil 210, a second tuning unit 220, and at least one second passive detuning unit 230. The ear coil 210, the second tuning unit 220, and the second passive detuning unit 230 can all be arranged in the ear bracket to play a role in fixing and supporting. In some embodiments, the ear bracket can be made of a flexible material (such as nylon cloth) to improve the comfort of the user when wearing. In some other embodiments, the ear bracket can also be made of a plastic material, and by setting noise reduction sponges on the fitting surface with the user, the comfort of the user when wearing can be improved. The ear coil 210 can be set as a square. In some embodiments, the ear coil 210 is a square with a side length of 5 cm. In some embodiments, the ear coil 210 is a circular loop formed by copper skin or flexible wire. As Figure 3 shown, the second tuning unit 220 is connected in series in the ear coil 210 and is used to adjust the resonance frequency of the ear coil 210. In some embodiments, the second tuning unit 220 includes at least one tuning capacitor. As Figure 3 shown, the second passive detuning unit 230 is connected in series in the ear coil 210 and has a strong inhibitory effect on the current that conforms to its resonance frequency. By adjusting the resonance frequency of the second passive detuning unit 230, the second passive detuning unit 230 can only affect the receiving field (B1-), and has no effect on the transmitting field (B1+). The number of the second passive detuning units 230 can be set as needed, and its position in the ear coil 210 can also be adjusted as needed.

[0043] Both two ear receiving components 200 are connected to the eye receiving component 100 to jointly form a wearable receiving device 520. In some embodiments, the two ear receiving components 200 and the eye receiving component 100 can be of an integral structure, and it can be composed of a flexible material or a hard material. In some embodiments, the ear receiving component 200 and the eye receiving component 100 are detachably connected, or connected through a telescopic structure to adapt to the head sizes of different users.

[0044] For the above-mentioned wearable receiving device 520, by connecting the first tuning unit 120 and the first passive detuning unit 130 in series on the eye coil 110, and connecting the second tuning unit 220 and the second passive detuning unit 230 in series on the ear coil 210, when in use, wear it on the user's head and place it in the head coil 510 and then perform magnetic resonance scanning. The wearable receiving device 520 of this embodiment converges the magnetic induction lines within the coverage range of the wireless resonance ring to enhance the magnetic field in a specific area, so as to achieve the effect of changing the receiving field distribution and improve the uniformity of the magnetic field distribution. At the same time, by setting the passive detuning unit, the influence of the wearable receiving device 520 on the transmitting field can be greatly reduced.

[0045] In one embodiment, asFigure 4 As shown, the eye receiving component 100 further includes: a decoupling unit 140. The decoupling unit 140 is connected in series on the eye coil 110. The decoupling unit 140 divides the eye coil 110 into two co-side coils 111 with the same length. Specifically, in this embodiment, the eye receiving component 100 is further provided with a decoupling unit 140. The decoupling unit 140 divides the eye coil 110 into two parts and forms two co-side coils 111 with the same length. The decoupling unit 140 is used to decouple the signals in the two co-side coils 111. In some embodiments, the decoupling unit 140 includes at least one co-side capacitor. In some embodiments, a first tuning unit 120 and a first passive detuning unit 130 are connected in series in each co-side coil 111. In some other embodiments, multiple first passive detuning units 130 may also be connected in series in each co-side coil 111. When the eye receiving component 100 is further provided with a decoupling unit 140, the wearable receiving device 520 can be set as shown in Figure 5 the structure shown. At this time, when the wearable receiving device 520 is worn, the decoupling unit 140 is located at the root of the user's nose.

[0046] In one embodiment, as shown in Figure 4 the first passive detuning unit 130 is set to two, and one first passive detuning unit 130 is connected in series in each co-side coil 111. Specifically, in this embodiment, by connecting one first passive detuning unit 130 in series in each co-side coil 111, the structures of the two co-side coils 111 are made more symmetrical.

[0047] In one embodiment, as shown in Figure 6 the first passive detuning unit 130 and / or the second passive detuning unit 230 includes: a resonant capacitor 310, an inductor 320, a first diode 330, and a second diode 340. One end of the inductor 320 is connected to one end of the resonant capacitor 310, and the other end of the inductor 320 is respectively connected to the positive electrode of the first diode 330 and the negative electrode of the second diode 340. The negative electrode of the first diode 330 and the positive electrode of the second diode 340 are both connected to the other end of the resonant capacitor 310.

[0048] Specifically, in this application, the resonant capacitor 310, the inductor 320, the first diode 330, and the second diode 340 jointly form a passive detuning unit. When the head coil 510 emits a magnetic field signal, the first diode 330 and the second diode 340 are turned on, and the resonant capacitor 310 and the inductor 320 form a parallel resonance. At this time, the port of the passive detuning unit is in a high-impedance state, and has a strong inhibitory effect on the current at this resonant frequency. The corresponding coil circuit is equivalent to being disconnected. Therefore, the passive detuning unit only enhances the local magnetic field when the head coil 510 receives, only affects the receiving field (B1-), and has no effect on the transmitting field (B1+).

[0049] The following uses some specific embodiments to describe in detail the wearable receiving device 520 of the present application. In one embodiment, as Figure 7 shown, two first passive detuning units 130 are provided in the eye receiving component 100 in this embodiment. Capacitors C1, C2, C3, and C4 together constitute a first tuning unit 120 for adjusting the resonance frequency of the eye coil 110. Capacitors C5, C6, inductor L1, diode D1, and diode D2 together constitute one first passive detuning unit 130, and capacitors C7, C8, inductor L2, diode D3, and diode D4 together constitute another first passive detuning unit 130. The circuit structure of the eye receiving component 100 in this embodiment is applicable to Figure 1 the eye receiving component 100 shown in

[0050] In one embodiment, as Figure 8 shown, the eye receiving component 100 in this embodiment is further provided with a decoupling unit 140, two first passive detuning units 130, and two first tuning units 120, and a common-side coil 111 is connected in series with a first passive detuning unit 130 and a first tuning unit 120. Specifically, capacitors C9 and C10 together constitute a first tuning unit 120, capacitors C11 and C12 together constitute another first tuning unit 120, and capacitor C13 constitutes the decoupling unit 140. Capacitors C14, C15, inductor L3, diode D5, and diode D6 together constitute one first passive detuning unit 130, and capacitors C16, C17, inductor L4, diode D7, and diode D8 together constitute another first passive detuning unit 130. The circuit structure of the eye receiving component 100 in this embodiment is applicable to Figure 5 the eye receiving component 100 shown in

[0051] In one embodiment, as Figure 9 shown, only one second passive detuning unit 230 is provided in the ear receiving component 200 in this embodiment. Capacitors C18, C19, and C20 together constitute a second tuning unit 220 for adjusting the resonance frequency of the ear coil 210. Capacitors C21, C22, inductor L5, diode D9, and diode D10 together constitute one second passive detuning unit 230. The circuit structure of the ear receiving component 200 in this embodiment is applicable to Figure 1 or Figure 5 the ear receiving component 200 shown in

[0052] In one embodiment, as Figure 10As shown, the wearable receiving device 520 further includes: a telescopic member 410, and the ear receiving assembly 200 is connected to the eye receiving assembly 100 through the telescopic member 410. Specifically, in this embodiment, both ear receiving assemblies 200 are connected to the eye receiving assembly 100 through the telescopic member 410 to adapt to the heads of different users. In some embodiments, the ear receiving assembly 200 is connected to the eye receiving assembly 100 through an elastic band. In one embodiment, an opening 430 is provided on the eye receiving assembly 100, and the opening 430 is used to expose the user's eyes to be applicable to users with claustrophobia. In some other embodiments, the opening 430 may not be provided on the eye receiving assembly 100.

[0053] In one embodiment, the present application also proposes a wearable receiving device, including: a flexible body and an eye receiving assembly 100. The flexible body can fit the face of the detection object and is provided with an observation window; there is one observation window, and it extends from the left eye area to the right eye area of the detection object; or, there are two observation windows, and they respectively correspond to the left eye area and the right eye area of the detection object; the eye receiving assembly 100 is disposed in the flexible body, and the eye receiving assembly 100 includes an eye coil 110, a first tuning unit 120, and at least one first passive detuning unit 130. The eye coil 110 is disposed around the outer periphery of the observation window, and both the first tuning unit 120 and the first passive detuning unit 130 are connected in series on the eye coil 110.

[0054] Specifically, the wearable receiving device in this embodiment only includes a flexible body and an eye receiving assembly 100. The flexible body is made of a flexible material (such as nylon cloth) to improve the comfort of the user when wearing. The flexible body is used to carry the eye receiving assembly 100. The flexible body can fit the face of the detection object, and an observation window is provided on the flexible body. In some embodiments, as Figure 1 shown, the observation window is provided as one and extends from the left eye area to the right eye area of the detection object. In some embodiments, as Figure 5 shown, the observation window is provided as two and respectively corresponds to the left eye area and the right eye area of the detection object.

[0055] The eye receiving component 100 is disposed within the flexible body. The eye receiving component 100 includes: an eye coil 110, a first tuning unit 120, and at least one first passive detuning unit 130. The eye coil 110 is disposed around the outer periphery of the viewing window. It can be understood that when the viewing window is set to different shapes, the eye coil 110 can also be set to different shapes. In some embodiments, the eye coil 110 can be set as a rectangular curved surface to better fit the user. In some embodiments, the eye coil 110 is a rectangular curved surface of 11 cm × 21 cm. In some embodiments, the eye coil 110 is an annular loop formed by copper skin or flexible wire. As Figure 2 shown, the first tuning unit 120 is connected in series in the eye coil 110 and is used to adjust the resonance frequency of the eye coil 110. In some embodiments, the first tuning unit 120 includes at least one tuning capacitor. As Figure 2 shown, the first passive detuning unit 130 is connected in series in the eye coil 110 and has a strong inhibitory effect on the current that conforms to its resonance frequency. By adjusting the resonance frequency of the first passive detuning unit 130, the first passive detuning unit 130 can only affect the receiving field (B1-), and has no effect on the transmitting field (B1+). The number of the first passive detuning units 130 can be set as needed, and its position in the eye coil 110 can also be adjusted as needed.

[0056] For the above wearable receiving device 520, by connecting the first tuning unit 120 and the first passive detuning unit 130 in series on the eye coil 110 and disposing them within the flexible body, during use, it can be worn on the user's head and placed in the head coil 510 for magnetic resonance scanning. For the wearable receiving device 520 of this embodiment, by converging the magnetic induction lines within the coverage range of the wireless resonance loop, the magnetic field in a specific area is enhanced, thereby achieving the effect of changing the receiving field distribution and improving the uniformity of the magnetic field distribution. At the same time, by setting the passive detuning unit, the influence of the wearable receiving device 520 on the transmitting field can be greatly reduced.

[0057] In one embodiment, the wearable receiving device further includes: two ear receiving components 200, which are disposed on the left and right sides of the detection object. The two ear receiving components 200 are both connected to the flexible body, and the ear receiving components 200 and the flexible body form a head-mounted structure adapted to the head of the detection object.

[0058] Specifically, the wearable receiving device in this embodiment is provided with a flexible body, an eye receiving component 100, and two ear receiving components 200. The two ear receiving components 200 are arranged on the left and right sides of the detection object and are used to fit with the ears of the detection object. The two ear receiving components 200 are both connected to the flexible body, and the ear receiving components 200 and the flexible body form a head-mounted structure adapted to the head of the detection object. In some embodiments, the ear receiving component 200 includes: an ear coil 210, a second tuning unit 220, and at least one second passive detuning unit 230. The ear receiving component 200 can be arranged in an ear bracket to play a role in fixing and supporting. In some embodiments, the ear bracket can be made of a flexible material (such as nylon cloth) to improve the comfort of the user when wearing. In some other embodiments, the ear bracket can also be made of a plastic material, and by setting a noise reduction sponge on the fitting surface with the user, the comfort of the user when wearing can be improved. The ear coil 210 can be set as a square. In some embodiments, the ear coil 210 is a square with a side length of 5 cm. In some embodiments, the ear coil 210 is a loop formed by copper skin or flexible wire. As Figure 3 shown, the second tuning unit 220 is connected in series in the ear coil 210 and is used to adjust the resonant frequency of the ear coil 210. In some embodiments, the second tuning unit 220 includes at least one tuning capacitor. As Figure 3 shown, the second passive detuning unit 230 is connected in series in the ear coil 210 and has a strong inhibitory effect on the current that conforms to its resonant frequency. By adjusting the resonant frequency of the second passive detuning unit 230, the second passive detuning unit 230 can only affect the receiving field (B1-), and has no effect on the transmitting field (B1+). The number of the second passive detuning units 230 can be set as needed, and its position in the ear coil 210 can also be adjusted as needed.

[0059] In one embodiment, as Figure 10 shown, the wearable receiving device further includes: a connecting belt 420, and both ends of the connecting belt 420 are respectively connected to the two ear receiving components 200 and surround the back region of the detection object's head. Specifically, in this embodiment, one end of an ear receiving component 200 is connected to one end of the flexible body, and the other end of the ear receiving component 200 is connected to one end of the connecting belt 420; one end of the other ear receiving component 200 is connected to one end of the flexible body, and the other end of the ear receiving component 200 is connected to the other end of the connecting belt 420.

[0060] In one embodiment, both ends of the connecting band 420 are respectively connected to the left and right sides of the flexible body and wrap around the back region of the detection object's head. Specifically, in this embodiment, the connecting band 420 is not directly connected to the ear receiving component 200. Both ends of the connecting band 420 are respectively connected to the left and right sides of the flexible body and wrap around the back region of the detection object's head. In some other embodiments, the ear receiving component 200 can also be fixed on the connecting band 420.

[0061] In one embodiment, as Figure 11 and Figure 12 shown, the present application also proposes a magnetic resonance device, which includes: a head coil 510 and the wearable receiving device 520 in the above embodiment. Specifically, when the magnetic resonance device of the present application is in use, the user first wears the wearable receiving device 520, and then wears the head coil 510. After both are worn, the user can perform a scan. The head coil 510 can transmit or receive magnetic field signals. When the user wears the wearable receiving device 520, the head coil 510 can receive the magnetic field signals strengthened by the wearable receiving device 520.

[0062] For the above magnetic resonance device, by connecting the first tuning unit 120 and the first passive detuning unit 130 in series on the eye coil 110, and connecting the second tuning unit 220 and the second passive detuning unit 230 in series on the ear coil 210, during use, it is worn on the user's head and placed in the head coil 510 for magnetic resonance scanning. The wearable receiving device 520 of the present application enhances the magnetic field in a specific area by converging the magnetic induction lines within the coverage of the wireless resonant loop, thereby achieving the effect of changing the receiving field distribution and improving the uniformity of the magnetic field distribution. At the same time, by setting the passive detuning unit, the influence of the wearable receiving device 520 on the transmitting field can be significantly reduced.

[0063] Next, the advantages of the wearable receiving device 520 of the present application will be described in detail with a specific embodiment. As Figure 13 shown, the two-dimensional map of the signal-to-noise ratio obtained when the user does not wear the wearable receiving device 520 of the present application is at the lower left corner. It can be seen from the figure that the left and right fields of the head are uneven and the field strength of the prefrontal lobe is relatively low; the two-dimensional map of the signal-to-noise ratio obtained when the user wears the wearable receiving device 520 of the present application is at the upper left corner. It can be seen from the figure that the signal-to-noise ratio of the prefrontal lobe part has been significantly enhanced; the two-dimensional map of the ratio distribution of the signal-to-noise ratio after wearing to that before wearing is at the upper right corner, and the statistical chart of the ratio of the signal-to-noise ratio after wearing to that before wearing and the number of pixel points is at the lower right corner. It can be seen from the figure that the signal-to-noise ratio has increased by about 180% at most, and the overall uniformity has been enhanced.

[0064] In the description of this specification, the descriptions referring to terms such as "some embodiments", "one embodiment", "other embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0065] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0066] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A wearable receiving device, characterized in that: include: An eye receiving component (100), the eye receiving component (100) comprising: an eye coil (110), a first tuning unit (120) and at least one first passive detuning unit (130), the first tuning unit (120) and the first passive detuning unit (130) both being connected in series to the eye coil (110); Two ear receiving components (200), both of which are connected to the eye receiving component (100), the ear receiving component (200) comprising: an ear coil (210), a second tuning unit (220) and at least one second passive detuning unit (230), the second tuning unit (220) and the second passive detuning unit (230) both being connected in series to the ear coil (210).

2. The wearable receiving device according to claim 1, characterized in that The eye receiving component (100) further comprises: a decoupling unit (140), the decoupling unit (140) being connected in series to the eye coil (110), the decoupling unit (140) dividing the eye coil (110) into two common-edge coils (111) of the same length.

3. The wearable receiving device according to claim 2, characterized in that The first passive detuning unit (130) is provided in two pieces, and each of the co-lateral coils (111) is connected in series with one of the first passive detuning units (130).

4. The wearable receiving device according to claim 1, characterized in that The first passive detuning unit (130) and / or the second passive detuning unit (230) comprises: a resonant capacitor (310), an inductor (320), a first diode (330) and a second diode (340), one end of the inductor (320) being connected to one end of the resonant capacitor (310), the other end of the inductor (320) being respectively connected to the positive electrode of the first diode (330) and the negative electrode of the second diode (340), and the negative electrode of the first diode (330) and the positive electrode of the second diode (340) being both connected to the other end of the resonant capacitor (310).

5. The wearable receiving device according to claim 1, characterized in that: The eye coil (110) and / or the ear coil (210) is a ring loop formed by copper skin or flexible wire.

6. The wearable receiving device according to claim 1, characterized in that: Also includes: A telescopic member (410), wherein the ear receiving component (200) is connected to the eye receiving component (100) via the telescopic member (410).

7. The wearable receiving device according to claim 1, characterized in that The eye receiving component (100) is provided with an opening (430).

8. A wearable receiving device, characterized in that: include: The flexible body can fit the face of the test object and has an observation window; There is one observation window, which extends from the left eye area to the right eye area of ​​the detection object; or, there are two observation windows, which correspond to the left eye area and the right eye area of ​​the detection object respectively; An eye receiving component (100) is arranged in the flexible body; the eye receiving component (100) comprises an eye coil (110), a first tuning unit (120) and at least one first passive detuning unit (130); the eye coil (110) is arranged around the periphery of the observation window; The first tuning unit (120) and the first passive detuning unit (130) are both connected in series to the eye coil (110).

9. The wearable receiving device according to claim 8, characterized in that: Also includes: Two ear receiving components (200) are arranged on the left and right sides of the detection object, and the two ear receiving components (200) are both connected to the flexible body; The ear receiving component (200) and the flexible body form a head-mounted structure that matches the head of the detection object.

10. The wearable receiving device according to claim 9, characterized in that: Also includes: A connecting belt (420), wherein two ends of the connecting belt (420) are respectively connected to the two ear receiving components (200) and surround the back of the head area of ​​the detection object; or, The two ends of the connection belt (420) are respectively connected to the left and right sides of the flexible body and surround the back of the head area of ​​the detection object.

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