CN218158301U - Carotid coil device, carotid coil assembly and head and neck coil assembly - Google Patents

Abstract

The utility model provides a carotid coil device (100), carotid coil assembly and neck coil assembly (300). The carotid coil device (100) comprises a carotid antenna (14), a first housing (12), a second housing (13), a cable unit (11) and a first electrical connector. The first shell (12) is provided with a containing cavity (125) for containing the neck of a human body, and the carotid artery antenna (14) is wrapped inside the first shell (12); the second housing (13) is connected to the first housing (12) in a penetrating manner; the cable unit (11) at least extends to the inside of the second shell (13) from the inside of the first shell (12), the first end of the cable unit (11) is connected to the carotid antenna (14), and the first electric connector (131) is arranged on the surface of the second shell (13) and is electrically connected with the second end of the cable unit (11).

Description

Carotid coil device, carotid coil assembly and head and neck coil assembly

Technical Field

The utility model relates to a magnetic resonance imaging technical field, in particular to carotid coil device, carotid coil assembly and neck coil assembly.

Background

Magnetic Resonance Imaging (MRI) is a technique for imaging using a magnetic resonance phenomenon. A magnetic resonance imaging system generally includes a bore-type superconducting magnet, gradient coils surrounding the superconducting magnet, a bore-type body coil disposed in the gradient coils, a table board on which a patient is placed, and local coils for covering a portion of the patient, such as a knee coil, a shoulder coil, a spine coil, a wrist coil, a body coil, and a head and neck coil.

There is an increasing need for scanning of the carotid artery region in magnetic resonance applications. However, some carotid coils only support unilateral carotid scanning, and the scanning efficiency is low; the carotid coil is mostly used for a high magnetic field system (such as 3T and the like), and a radio frequency choke is required to be arranged to inhibit common-mode current, so that a coil cable is heavy, the bending degree is poor, and the comfort degree of the choke pressed on a patient is poor; most carotid coils are not soft enough and cannot be well attached to the surface curvature of the carotid part, so that the signal-to-noise ratio is not good enough, and the comfort level of a patient during scanning is poor; extra binding bands are needed for positioning the carotid coil, so that the complexity of coil positioning is increased; some special carotid coils can be used only by matching with a base, and the structure is complex.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a carotid coil device, carotid coil subassembly and neck coil subassembly in order to overcome among the prior art the redundant heavy and overweight electronic parts of cable of carotid coil and lead to patient's the relatively poor defect of comfort level.

The utility model discloses a following technical scheme realizes above-mentioned technological effect:

the utility model provides a carotid coil device for magnetic resonance carotid formation of image, carotid coil device includes the carotid antenna, the carotid antenna is used for receiving the signal that comes from the carotid, carotid coil device still includes:

the first shell is provided with an accommodating cavity for accommodating the neck of a human body, and the carotid artery antenna is wrapped inside the first shell;

the second shell is connected with the first shell in a penetrating way;

a cable unit extending from an interior of the first housing to at least an interior of the second housing, a first end of the cable unit being connected to the carotid antenna;

and the first electric connector is arranged on the surface of the second shell and is electrically connected with the second other end of the cable unit, and the first electric connector can be electrically connected with a second electric connector arranged on a base of a sickbed of the magnetic resonance imaging equipment and transmits a magnetic resonance signal through the base.

In the scheme, the cable unit is bundled in the second shell to form an integral structure, so that redundant cables and other overweight electronic components are prevented from being scattered outside, the installation is easy, the coil is convenient to position, and the comfort level of a scanned patient is improved; . The carotid artery coil device of the scheme can be matched with the base, redundant and heavy cables connected with a magnetic resonance system do not need to be arranged, the base provides mechanical and electronic interfaces, the carotid artery coil device can form an integrated structure with the base, and when bilateral carotid artery scanning is carried out, the carotid artery coil device only needs to be placed on the base and is connected and communicated with the magnetic resonance system through the base. Because the head and neck coil assembly does not need redundant and heavy cables, the head and neck coil assembly is easy to install and convenient to position, an expensive system plug is omitted, the coil cost is saved, and the experience of a patient in examination can be improved.

Preferably, at least a portion of the first housing is made of a foaming material, the second housing is made of a hard material, and the first housing includes a first flexible portion made of a first foaming material and a second flexible portion made of a second foaming material having a density lower than that of the first foaming material, the second flexible portion being wrapped around an outer portion of the first flexible portion.

In this scheme, first casing is made by expanded material, and the soft comfortable laminating scans the position, and the pendulum position near the carotid artery need not extra bandage or magic and pastes, only needs one hand or both hands to pull first casing outwards during pendulum position, makes first casing be in the state of opening, can make things convenient for patient's neck to lie in the holding chamber, and expanded material can kick-back after loosening both hands, and original state is got back to first casing, can press close to as far as possible and be scanned the position. The density of the first flexible part in the inner layer is smaller so as to improve the softness and elasticity of the flexible antenna part; the second flexible part on the outer layer has higher density, which is beneficial to keeping the shape of the first shell and avoiding collapse in the using process.

Preferably, the carotid artery antenna is clamped between the first flexible portion and the second flexible portion, and the carotid artery antenna is arranged on one side, close to the neck of the human body, of the first shell.

In the scheme, the carotid artery antenna can be close to the human body as far as possible while keeping a safe distance with the human body, so that the receiving sensitivity of the magnetic resonance signal is improved.

Preferably, the carotid coil device further comprises a connector made of a flexible material, one end of the connector is communicated with the first housing, the other end of the connector is communicated with the second housing, and the cable unit enters the second housing from the first housing through the connector.

In this solution, the connecting piece can on the one hand support a certain degree of rotation of the flexible first housing relative to the second housing; and on the other hand to encapsulate the cable unit.

Preferably, the first shell is an annular structure with a gap above, so as to form the accommodating cavity corresponding to the contour of the neck.

Preferably, the first shell comprises a left shell and a right shell which are arranged oppositely, a space between the left shell and the right shell forms the accommodating cavity, and the side wall surface of the left shell close to the neck and the side wall surface of the right shell close to the neck correspond to the contour of the neck.

Preferably, the left housing and the right housing are rotatably connected to the second housing;

and/or elastic pieces are arranged between the left shell and the second shell and between the right shell and the second shell.

In this scheme, left casing and right casing are rotatable for the second casing to put the angle and can change along with the outline of human neck, be favorable to the laminating neck. Through setting up the elastic component, the position of left side casing and right casing and the distance between the two are adjustable, can be applicable to the not neck profile of equidimension, are favorable to the laminating neck.

Preferably, an electronic component is disposed inside the second housing, and the cable unit is electrically connected to the electronic component, wherein the electronic component includes a preamplifier and a radio frequency choke.

In this embodiment, the electronic components such as the preamplifier and the rf choke are also disposed in the second housing, and are formed as an integral structure, which is easy to install, and the carotid antenna is connected to the preamplifier and the rf choke through the cable unit.

Preferably, the carotid artery antenna comprises two symmetrically arranged coil groups, each coil group comprises a plurality of coil units, the coil units are arranged according to a preset layout mode, and adjacent coil units are mutually overlapped at a joint;

wherein the coil unit is rectangular or saddle-shaped.

In the scheme, adjacent coil units are decoupled in an overlapping mode, the signal to noise ratio of the carotid artery part can be improved by adopting the coil group, and the symmetrically arranged bilateral coil groups can support simultaneous scanning of the carotid arteries on two sides, so that the scanning efficiency is improved.

Preferably, the second shell is a horizontally placed U-shaped structure, the first shell is connected to an opening end of the U-shaped structure, and a cavity surrounded by the U-shaped structure is used for placing the head.

The utility model also provides a carotid coil subassembly, carotid coil subassembly includes base and above-mentioned carotid coil device, the base sets up in the magnetic resonance imaging equipment sick bed, correspond to on the base first electric connector is provided with the second electric connector, the second electric connector is connected with the magnetic resonance imaging equipment electricity.

In the scheme, the base can be used as a base of the second shell and the first shell, and the base can be used for supporting the first shell and improving the comfort level of the head of the patient due to the fact that the first shell is of a flexible structure; through the cooperation of carotid coil device and base, need not set up redundancy and heavy cable that are used for being connected with the magnetic resonance system, the base provides machinery and electronic interface, makes carotid coil can form an organic whole structure with the base, when carrying out two sides carotid scanning, only needs to put this carotid coil device on the base, is connected and communicates with the magnetic resonance system through the base. Because the head and neck coil assembly does not need redundant and heavy cables, the head and neck coil assembly is easy to install and convenient to position, an expensive system plug is omitted, the coil cost is saved, and the experience of a patient in examination can be improved.

The utility model also provides a neck coil assembly, neck coil assembly includes neck coil device and as above the carotid coil device, neck coil device includes the neck antenna, the neck antenna is used for receiving the signal from the neck, neck coil device is used for magnetic resonance neck portion formation of image, carotid coil device sets up in the top of neck coil device;

the head and neck coil device is used as the base and arranged on the sickbed of the magnetic resonance imaging equipment, a second electric connector is arranged on the head and neck coil device corresponding to the first electric connector, and the second electric connector is electrically connected with the magnetic resonance imaging equipment.

In the scheme, the head and neck coil device in the magnetic resonance system is a standard configuration coil generally, and the head and neck coil device can be placed on a sickbed generally, so that the head and neck coil device can be used for scanning or positioning the head, the spine, the carotid artery and other parts on one hand, and can improve the comfort level of the head of a patient on the other hand. The carotid artery coil device of the scheme does not need to be provided with a redundant and heavy cable for being connected with a magnetic resonance system, the carotid artery coil device utilizes the head and neck coil device as a base so as to provide a mechanical and electronic interface, so that the carotid artery coil can form an integrated structure with the head and neck coil device, when bilateral carotid artery scanning is carried out, the head and neck coil device does not need to be moved, the carotid artery coil device only needs to be placed on the head and neck coil device, and the carotid artery coil device is connected with and communicated with the magnetic resonance system through the head and neck coil device. Because the head and neck coil assembly does not need redundant and heavy cables, the head and neck coil assembly is easy to install and convenient to position, an expensive system plug is omitted, the coil cost is saved, and the experience of a patient in examination can be improved.

Preferably, the neck coil device is provided with a receiving groove with an upward opening corresponding to the first housing, the first housing is disposed in the receiving groove, and the first housing is disposed to be capable of being pulled upward relative to the receiving groove to increase an opening area of the receiving cavity.

In the scheme, the accommodating groove is used for accommodating and supporting the first shell, so that the effect of limiting the first shell is achieved, and the first shell is prevented from deforming; the position of putting near the carotid artery need not extra bandage or magic subsides, only need one hand or both hands to pull first casing outwards during the position of putting, make first casing be in the state of opening, can make things convenient for patient's neck to lie into the holding chamber in, the expanded material can kick-back after loosening both hands, and first casing gets back to original state, can press close to as far as possible and is scanned the position.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in: for the carotid artery coil device, the cable unit is bundled in the second shell to form an integral structure, so that redundant cables and other overweight electronic components are prevented from being scattered outside, the carotid artery coil device is easy to install, the coil is convenient to position, and the comfort level of a scanned patient is improved. The carotid artery coil device can be matched with the base, redundant and heavy cables connected with a magnetic resonance system do not need to be arranged, the base provides mechanical and electronic interfaces, the carotid artery coil can form an integrated structure with the base, and when bilateral carotid artery scanning is carried out, the carotid artery coil device only needs to be placed on the base and is connected and communicated with the magnetic resonance system through the base. Because the head and neck coil assembly does not need redundant and heavy cables, the head and neck coil assembly is easy to install and convenient to position, an expensive system plug is omitted, the coil cost is saved, and the experience of a patient in examination can be improved. For the head and neck coil assembly, the carotid coil device utilizes the head and neck coil device as a base, and is directly connected with and communicated with the magnetic resonance system through the head and neck coil device. Correspondingly, the utility model has the advantages of easy installation, convenient positioning, cost saving and improved patient experience

Drawings

The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail embodiments thereof with reference to the attached drawings.

Fig. 1 is a schematic perspective view of a carotid artery coil device according to embodiment 1 of the present invention.

Fig. 2 is a schematic perspective view of a head-neck coil assembly according to embodiment 1 of the present invention.

Fig. 3 is a cross-sectional view of a carotid coil device in a head and neck coil assembly according to embodiment 1 of the present invention, wherein the first housing is in an original state.

Fig. 4 is a cross-sectional view of a carotid coil device in a head and neck coil assembly according to embodiment 1 of the present invention, wherein the first housing is in an open state.

Fig. 5 is a schematic perspective view of a carotid artery coil device according to embodiment 2 of the present invention.

Fig. 6 is a schematic perspective view of a head-neck coil assembly according to embodiment 2 of the present invention.

Fig. 7 shows a layout of the carotid artery antenna according to the preferred embodiment of the present invention.

Fig. 8 shows another layout of the carotid antenna according to the preferred embodiment of the present invention.

Fig. 9 shows another layout of the carotid artery antenna according to the preferred embodiment of the invention.

Wherein the reference numbers are as follows:

carotid coil device 100

Cable unit 11

First housing 12

First flexible portion 121

Second flexible portion 122

Left shell 123

Right housing 124

Accommodation cavity 125

Second housing 13

First electrical connector 131

Carotid antenna 14

Coil assembly 141

Coil unit 1411

Connecting piece 15

Head and neck coil device 200

Accommodation groove 21

Head and neck coil assembly 300

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings, in which like reference numerals refer to like parts in the drawings.

"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.

For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled.

In this document, "one" means not only "only one" but also a case of "more than one". In this document, "first", "second", and the like are used only for distinguishing one from another, and do not indicate the degree of importance and order thereof, and the premise that each other exists, and the like.

Example 1

As shown in fig. 1-4 and 7-9, a carotid coil apparatus 100 for magnetic resonance carotid imaging is disclosed. The carotid coil apparatus 100 comprises a carotid antenna 14, a first housing 12, a second housing 13, a cable unit 11 and a first electrical connector 131, the carotid antenna 14 being used for receiving signals from the carotid artery; the first shell 12 is provided with a containing cavity 125 for containing the neck of a human body, and the carotid artery antenna 14 is wrapped inside the first shell 12; the second housing 13 is connected to the first housing 12; the cable unit 11 extends from the inside of the first housing 12 to at least the inside of the second housing 13, and a first end of the cable unit 11 is connected to the carotid antenna 14; the first electrical connector 131 is disposed on the surface of the second housing 13 and electrically connected to the second end of the cable unit 11, and the first electrical connector 131 can be electrically connected to a second electrical connector disposed on a base of a bed of the mri apparatus and transmit an mri signal through the base; at least a part of the first housing 12 is made of a foamed material, and the second housing 13 is made of a hard material.

In the embodiment, the cable unit 11 is bundled in the second housing 13 to form an integral structure, so that redundant cables and other overweight electronic components are prevented from being scattered outside, the installation is easy, the coil is convenient to position, and the comfort level of a scanned patient is improved; first casing 12 is made by expanded material, and the soft comfortable laminating scanning position need not extra bandage or magic subsides in the pendulum position near the carotid, only needs one hand or both hands to pull first casing 12 outwards during pendulum position, makes first casing 12 be in the state of opening, can make things convenient for patient's neck to lie into in holding chamber 125, and expanded material can kick-back after loosening both hands, and first casing 12 gets back to original state, can press close to as far as scanned position.

The carotid coil apparatus 100 in this embodiment can be matched with a base, without the need of providing redundant and heavy cables for connection with a magnetic resonance system, the base provides mechanical and electronic interfaces, so that the carotid coil apparatus 100 can form an integrated structure with the base, and when performing bilateral carotid scanning, the carotid coil apparatus 100 only needs to be placed on the base, and connected and communicated with the magnetic resonance system through the base. Because the head and neck coil assembly does not need redundant and heavy cables, the head and neck coil assembly is easy to install and convenient to position, an expensive system plug is omitted, the coil cost is saved, and the experience of a patient in examination can be improved.

The carotid antenna 14 can be made of a flexible printed circuit board or a flexible conductor, and can be as close to the human body as possible while keeping a safe distance from the human body, so as to improve the receiving sensitivity of the magnetic resonance signal.

As shown in fig. 3 to 4, the first housing 12 includes a first flexible portion 121 and a second flexible portion 122, the second flexible portion 122 wraps outside the first flexible portion 121, the first flexible portion 121 is made of a first foamed material, and the second flexible portion 122 is made of a second foamed material; wherein the density of the first foam material is less than the density of the second foam material. The density of the first flexible part 121 in the inner layer is smaller to improve the softness and elasticity of the carotid artery antenna; the greater density of the second flexible portion 122 at the outer layer helps to maintain the shape of the first housing 12 and avoid collapse during use. Specifically, the bottom of the first housing 12 is made entirely of the second foam material to increase the rigidity of the first housing 12 to avoid collapse.

The foaming material can be PU foaming material, PE foaming material and the like. In one embodiment, the first flexible portion 121 and the second flexible portion 122 are connected together through a thermal compression process. In an alternative embodiment, the first flexible portion 121 and the second flexible portion 122 may be two separate structures, as long as the first flexible portion 121 can be embedded inside the second flexible portion 122.

As shown in fig. 3-4, the carotid antenna 14 is sandwiched between the first flexible portion 121 and the second flexible portion 122, and the carotid antenna 14 is disposed on a side of the first casing 12 close to the neck of the human body. With the above arrangement, the carotid antenna 14 can be as close to the human body as possible while keeping a safe distance from the human body, thereby improving the magnetic resonance signal receiving sensitivity.

As shown in fig. 1-4, the carotid coil device 100 further comprises a connecting member 15, one end of the connecting member 15 is communicated with the first housing 12, the other end of the connecting member 15 is communicated with the second housing 13, the cable unit 11 enters the second housing 13 from the first housing 12 through the connecting member 15; wherein the connecting member 15 is made of a flexible material. The connection 15 can on the one hand support a certain degree of rotation of the flexible first housing 12 relative to the second housing 13; and on the other hand for enclosing the cable unit 11. Specifically, the connector 15 may be a hose, and both ends of the hose are respectively inserted into the first housing 12 and the second housing 13.

In one embodiment, the first housing 12 is a ring-shaped structure with a gap above to form a receiving cavity 125 corresponding to the contour of the neck. In the present embodiment, the first casing 12 has a neckerchief shape as a whole, and can be half-wrapped around the neck of a human body.

The inside of the second housing 13 is provided with electronic components to which the cable unit 11 is electrically connected, wherein the electronic components include a preamplifier and a radio frequency choke. Electronic components such as a preamplifier and an rf choke are also provided in the second housing 13, and are formed as an integral structure for easy installation, and the carotid antenna 14 is connected to the preamplifier and the rf choke through the cable unit 11.

As shown in fig. 7-9, the carotid antenna 14 includes two symmetrically disposed coil sets 141, each coil set 141 includes a plurality of coil units 1411, the coil units 1411 are arranged according to a predetermined layout, and the adjacent coil units 1411 are overlapped with each other at the intersection; wherein the coil unit 1411 has a rectangular or saddle shape. As shown in fig. 6-8, adjacent coil units 1411 are decoupled in an overlapping manner, and the area of the overlapping portion can be adjusted according to the size of the coil unit 1411. The signal-to-noise ratio of the carotid artery part can be improved by adopting the coil set 141, and the symmetrically arranged bilateral coil sets 141 can support simultaneous scanning of the carotid arteries on two sides, so that the scanning efficiency is improved. The decoupling method is not limited to the overlapping method, and a decoupling method such as common edge decoupling, inductance decoupling, or capacitance decoupling may be used. The next adjacent coil unit 1411 may be decoupled using a preamplifier. In addition, the coil unit 1411 distribution can also use the application of multiple advanced imaging technologies such as multidirectional parallel acquisition technology (iPAT) and simultaneous multi-layer imaging technology (SMS), further reducing the scanning time.

Three arrangements of the coil unit 1411 are given below:

as shown in fig. 7, in the first embodiment, the carotid artery antenna 14 includes 12 coil units 1411, two coil groups 141 are oppositely disposed near the bilateral carotid arteries, and each coil group 141 has 6 rectangular coil units 1411, which are disposed in two rows and three coil units 1411 in each row.

As shown in fig. 8, in the second embodiment, the carotid artery antenna 14 includes 10 coil units 1411, two coil sets 141 are oppositely distributed near the bilateral carotid arteries, and each coil set 141 has 5 coil units 1411, which is composed of 2 rectangular coil units 1411 and 3 saddle-shaped coil units 1411. The coil unit 1411 design may further improve signal-to-noise ratio and uniformity over conventional four-channel carotid coils. Meanwhile, the application of bilateral carotid artery simultaneous scanning, high-order parallel acquisition technology (IPAT) and the like is supported, the scanning efficiency is improved, and the scanning time is reduced.

As shown in fig. 9, in the third embodiment, the carotid artery antenna 14 includes 8 coil units 1411, two coil sets 141 are oppositely disposed near bilateral carotid arteries, each coil set 141 has 4 coil units 1411, and each coil unit 1411 includes one rectangular coil unit 1411 and 3 saddle-shaped coil units 1411, and the rectangular coil unit 1411 spans between the three saddle-shaped coil units 1411. Compared with the scheme one and the scheme two-channel number are less, the cost is low, the double-side simultaneous scanning and the high-order parallel acquisition technology (IPAT) can be supported, the scanning efficiency is improved, and the scanning time is reduced.

As shown in fig. 1 and 2, the second housing 13 is a U-shaped structure horizontally placed, the first housing 12 is connected to an open end of the U-shaped structure, and a cavity surrounded by the U-shaped structure is used for placing a head.

The present embodiment also discloses a carotid coil assembly (not shown). The carotid coil assembly comprises a base (not shown) and the carotid coil device, wherein the base is arranged on a sickbed of the magnetic resonance imaging equipment, a second electric connector is arranged on the base corresponding to the first electric connector, and the second electric connector is electrically connected with the magnetic resonance imaging equipment.

Through the cooperation of carotid coil device and base, need not set up redundancy and heavy cable that are used for being connected with the magnetic resonance system, the base provides machinery and electronic interface, makes carotid coil can form an organic whole structure with the base, when carrying out two sides carotid scanning, only needs to put this carotid coil device on the base, is connected and communicates with the magnetic resonance system through the base. Because the head and neck coil assembly does not need redundant and heavy cables, the head and neck coil assembly is easy to install and convenient to position, an expensive system plug is omitted, the coil cost is saved, and the experience of a patient in examination can be improved.

The second shell is detachably connected to the base, the base is provided with an accommodating groove with an upward opening corresponding to the first shell, the first shell is arranged in the accommodating groove, and the first shell is arranged to be capable of being pulled upwards relative to the accommodating groove so as to increase the opening area of the accommodating cavity. In this embodiment, the base can serve as a base for the second housing and the first housing, and since the first housing is a flexible structure, the base can be used to support the first housing and improve the comfort of the head of the patient.

Specifically, the first electrical connector 131 is a pin structure, the second electrical connector is a socket structure, and when the second housing 13 is mechanically connected to the base, the pin structure can be inserted into the socket to electrically connect the two, so that the carotid artery coil and the magnetic resonance system can be connected and communicate with each other. It should be noted that, the structure is not limited to the pin and socket structure, and the first electrical connector 131 and the second electrical connector may also adopt other electrical connection structures as long as electrical connection can be achieved. The first electric connector 131 is arranged at the closed end of the U-shaped structure, the wires of the cable units 11 are distributed to the first electric connector 131 from the side surfaces of the two ends of the U-shaped structure, the wires of the cable units 11 on the two sides are integrated together, the use of the electric connectors is reduced, and the cost is saved.

The utility model discloses still disclose a neck coil assembly 300, neck coil assembly 300 includes neck coil device 200 and carotid artery coil device 100 as above, neck coil device 200 includes the neck antenna, and the neck antenna is used for receiving the signal from the neck, and neck coil device 200 is used for the formation of image of magnetic resonance neck, and carotid artery coil device 100 sets up in the top of neck coil device 200; the head and neck coil device 200 is disposed on a patient bed of the magnetic resonance imaging apparatus as a base, and the head and neck coil device 200 is provided with a second electrical connector corresponding to the first electrical connector 131, and the second electrical connector is electrically connected to the magnetic resonance imaging apparatus.

It should be noted that the whip coil apparatus 200 is similar to the base described above in terms of support, but the whip coil apparatus 200 of the present embodiment can also be used to receive signals from the whip. When only the carotid artery needs to be detected, the carotid artery coil can be used in cooperation with the base or the head and neck coil device 200, and when the carotid artery and the head and neck need to be detected, the carotid artery coil can be used in cooperation with the head and neck coil device 200.

In this embodiment, the head and neck coil apparatus 200 in the magnetic resonance system is generally a standard configuration coil, and the head and neck coil apparatus 200 is generally placed on a patient's bed, so that it can be used for scanning or positioning a head, a spine, or a carotid artery, on the one hand, and can improve the comfort of the head of the patient, on the other hand. The carotid artery coil device 100 of this scheme need not set up the redundancy and the heavy cable that are used for being connected with the magnetic resonance system, this carotid artery coil device 100 utilizes neck coil device 200 as the base, in order to provide mechanical and electronic interface, make carotid artery coil can form a body structure with neck coil device 200, when carrying out the scanning of two side carotid arteries, need not move neck coil device 200, only need put this carotid artery coil device 100 on neck coil device 200, be connected and communicate with the magnetic resonance system through neck coil device 200. Because the head and neck coil assembly 300 does not need redundant and heavy cables, the head and neck coil assembly is easy to install and convenient to position, an expensive system plug is omitted, the coil cost is saved, and the experience of a patient in examination can be improved.

As shown in fig. 2, the neck coil device 200 is provided with a receiving groove 21 with an upward opening corresponding to the first housing 12, the first housing 12 is disposed in the receiving groove 21, and the first housing 12 is disposed to be capable of being pulled upward relative to the receiving groove 21 to increase the opening area of the receiving cavity 125. The accommodating groove 21 is used for accommodating and supporting the first shell 12, and has a limiting effect on the first shell 12, so that the first shell 12 is prevented from deforming; the swing position near the carotid artery does not need extra bandage or magic tape, when the swing position is performed, only one hand or two hands are needed to pull the first shell 12 outwards, so that the first shell 12 is in an open state, the neck of the patient can be conveniently laid into the accommodating cavity 125, the foaming material can rebound after the two hands are loosened, and the first shell 12 returns to an original state, so that the scanned part can be pressed close to as far as possible.

Specifically, the first electrical connector 131 is a pin structure, the second electrical connector is a socket structure, and when the second housing 13 is mechanically connected to the base, the pin structure can be inserted into the socket to electrically connect the two, so that the carotid artery coil and the magnetic resonance system can be connected and communicate with each other. It should be noted that, the first electrical connector 131 and the second electrical connector may also adopt other electrical connection structures as long as electrical connection can be achieved, without being limited to the pin and socket structure. The first electrical connector 131 is disposed at the closed end of the U-shaped structure, and the wires of the cable units 11 are distributed from the two ends of the U-shaped structure to the first electrical connector 131 from the lateral sides, so that the wires of the cable units 11 on the two sides are integrated together, the use of the electrical connectors is reduced, and the cost is saved.

Specifically, the second housing 13 is provided with a first protruding portion, the first protruding portion protrudes downward from the bottom surface of the second housing 13, the first electrical connector 131 is disposed on the side wall surface of the first protruding portion, the head and neck coil device 200 is provided with a second protruding portion, the second protruding portion protrudes upward from the top surface of the second housing 13, the second electrical connector is disposed on the side wall surface of the second protruding portion, and the first electrical connector 131 and the second electrical connector are disposed oppositely, so that the first electrical connector 131 and the second electrical connector are disposed oppositely. When the second housing 13 is moved horizontally towards the whip coil apparatus 200, the first electrical connector 131 can be connected to the second electrical connector.

The first electrical connector and the second electrical connector are not limited to the above-described arrangement positions, and may be electrically connected to each other.

Example 2

As shown in fig. 4 and 5, the present embodiment discloses a carotid coil device 100 and a whip coil assembly 300. The difference from embodiment 1 is that in this embodiment, the first shell 12 does not adopt a neckerchief structure, but includes a left shell 123 and a right shell 124 which are oppositely arranged, a space between the left shell 123 and the right shell 124 forms an accommodating cavity 125, and a side wall surface of the left shell 123 close to the neck and a side wall surface of the right shell 124 close to the neck correspond to the contour of the neck.

In a preferred embodiment, the left housing 123 and the right housing 124 are rotatably coupled to the second housing 13. Specifically, the left housing 123 and the right housing 124 can rotate around the rotating shaft arranged on the second housing 13 or the connecting piece 15; or the left and right cases 123 and 124 are hinged to the second case 13, respectively. In this embodiment, the left housing 123 and the right housing 124 are rotatable relative to the second housing 13, so that the laying angle can be changed along with the external contour of the neck of the human body, which is beneficial to fit the neck.

In a preferred embodiment, elastic members are arranged between the left shell 123 and the right shell 124 and the second shell 13, and by arranging the elastic members, the positions of the left shell 123 and the right shell 124 and the distance between the two can be adjusted, so that the neck contour fitting device can be suitable for neck contours of different sizes, and is beneficial to fitting of necks.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments can be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims (13)

1. A carotid coil apparatus (100) for magnetic resonance carotid imaging, the carotid coil apparatus (100) comprising a carotid antenna (14), the carotid antenna (14) being for receiving signals from the carotid artery, characterized in that the carotid coil apparatus (100) further comprises:

a first shell (12) having a containing cavity (125) for containing the neck of a human body, wherein the carotid artery antenna (14) is wrapped inside the first shell (12);

a second housing (13), wherein the second housing (13) is connected to the first housing (12) in a penetrating manner;

a cable unit (11), the cable unit (11) extending from the interior of the first housing (12) to at least the interior of the second housing (13), a first end of the cable unit (11) being connected to the carotid antenna (14);

the first electric connector (131) is arranged on the surface of the second shell (13) and is electrically connected with the second end of the cable unit (11), and the first electric connector (131) can be electrically connected with a second electric connector arranged on a base of a sickbed of the magnetic resonance imaging equipment and transmits a magnetic resonance signal through the base.

2. The carotid artery coil device (100) according to claim 1, characterized in that at least a part of the first shell (12) is made of a foamed material, the second shell (13) is made of a hard material, the first shell (12) comprises a first flexible portion (121) made of a first foamed material and a second flexible portion (122) made of a second foamed material having a density lower than that of the first foamed material, the second flexible portion (122) is wrapped outside the first flexible portion (121).

3. The carotid artery coil device (100) according to claim 2, characterized in that the carotid antenna (14) is sandwiched between the first flexible part (121) and the second flexible part (122), and the carotid antenna (14) is arranged on the side of the first shell (12) close to the neck of the human body.

4. The carotid coil device (100) according to claim 1, characterized in that the carotid coil device (100) further comprises a connector (15) made of a flexible material, one end of the connector (15) communicating with the first housing (12), the other end of the connector (15) communicating with the second housing (13), the cable unit (11) entering the second housing (13) from the first housing (12) via the connector (15).

5. The carotid artery coil device (100) according to claim 1, characterized in that the first shell (12) is a ring-shaped structure with a gap above to form the accommodation cavity (125) corresponding to the contour of the neck.

6. The carotid artery coil device (100) according to claim 1, wherein the first casing (12) comprises a left casing (123) and a right casing (124) which are oppositely arranged, the space between the left casing (123) and the right casing (124) forms the accommodation cavity (125), and the side wall surface of the left casing (123) close to the neck and the side wall surface of the right casing (124) close to the neck correspond to the contour of the neck.

7. The carotid coil device (100) of claim 6, wherein the left housing (123) and the right housing (124) are rotatably connected to the second housing (13);

and/or an elastic piece is arranged between the left shell (123) and the second shell (13) and between the right shell (124) and the second shell (13).

8. Carotid coil device (100) according to claim 1, characterized in that inside the second housing (13) electronic components are arranged, to which the cable unit (11) is electrically connected, wherein the electronic components comprise a preamplifier and a radio frequency choke.

9. The carotid artery coil device (100) according to claim 1, wherein the carotid antenna (14) comprises two symmetrically arranged coil groups (141), each coil group (141) comprises a plurality of coil units (1411), the coil units (1411) are arranged according to a preset layout, and the adjacent coil units (1411) are overlapped at the junction;

wherein the coil unit is rectangular or saddle-shaped.

10. The carotid coil device (100) according to claim 1, wherein the second shell (13) is a horizontally placed U-shaped structure, the first shell (12) is connected to the open end of the U-shaped structure, and the U-shaped structure encloses a cavity for placing the head.

11. A carotid coil assembly characterized in that it comprises a carotid coil device (100) according to any of the claims 1 to 10 and a base arranged on a bed of a magnetic resonance imaging apparatus, on which base a second electrical connector is arranged corresponding to the first electrical connector, the second electrical connector being electrically connected to the magnetic resonance imaging apparatus.

12. A head and neck coil assembly (300), characterized in that the head and neck coil assembly (300) comprises a head and neck coil device (200) and a carotid coil device (100) according to any of claims 1-10, the head and neck coil device (200) comprising a head and neck antenna for receiving signals from the head and neck, the head and neck coil device (200) being for magnetic resonance head and neck imaging, the carotid coil device (100) being arranged above the head and neck coil device (200);

the head and neck coil device (200) serves as the base and is arranged on the sickbed of the magnetic resonance imaging equipment, a second electric connector is arranged on the head and neck coil device (200) corresponding to the first electric connector, and the second electric connector is electrically connected with the magnetic resonance imaging equipment.

13. The neck coil assembly (300) according to claim 12, wherein the neck coil device (200) is provided with an accommodating slot (21) that opens upward corresponding to the first housing (12), the first housing (12) is provided in the accommodating slot (21), and the first housing (12) is provided to be tearable upward relative to the accommodating slot (21) to increase an opening area of the accommodating cavity (125).

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