CN212723291U - Coil housing, cryogenic coil and magnetic resonance system - Google Patents

Abstract

The utility model relates to a coil shell, including vacuum casing and heating casing. The vacuum shell is surrounded to form a vacuum chamber, and the vacuum chamber can coat the coil body working under the low-temperature condition. The heating shell is surrounded to form a heating chamber, the heating chamber is located on one side, away from the coil body, of the vacuum chamber, and a passage allowing a high-temperature medium to pass through is formed in the heating chamber. The utility model discloses still relate to cryogenic coil and magnetic resonance system including above-mentioned coil shell. According to the coil shell, the low-temperature coil and the magnetic resonance system, the vacuum cavity formed by enclosing the vacuum shell can form an effective heat preservation effect on the coated coil body, and the heat transfer between the heating shell and the vacuum shell can ensure that one side of the vacuum shell, which is far away from the coil body, is at room temperature. The coil shell that this application provided has that heat transfer efficiency is high, simple structure, processing of being convenient for to the signal to noise ratio of coil body in the coil shell has effectively been guaranteed to the heating casing that sets up in vacuum casing one side.

Description

Coil housing, cryogenic coil and magnetic resonance system

Technical Field

The utility model relates to a magnetic resonance technology field especially relates to a coil shell, low temperature coil and magnetic resonance system.

Background

The signal-to-noise ratio of the normal temperature magnetic resonance detection is slightly lower than that of other types of detection techniques, and therefore, how to improve the signal-to-noise ratio of the magnetic resonance detection is a direction of continuous efforts of developers. The signal received in the magnetic resonance detection process is very weak induced current detected by a receiving coil, the signal to noise ratio of the magnetic resonance detection is increased by reducing the thermal noise of background current or increasing the induced current, a low-temperature detection coil is developed under the guidance of the theory, and the signal to noise ratio is improved to a certain extent. Since the coil body portion of the cryogenic coil operates at a low temperature and the subject to be detected is generally at room temperature, measures are required to reduce the influence of the cryogenic coil on the subject to be detected. In a general low-temperature coil, a ceramic heating sheet is added at the bottom of a shell of the low-temperature coil, but the method also increases the difficulty of the processing technology, and the design can increase the distance between the low-temperature coil and a measured object, thereby reducing the signal-to-noise ratio.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a coil housing, a cryogenic coil and a magnetic resonance system, which have a heating function, are easy to process, and contribute to an improvement in the signal-to-noise ratio, in order to solve the problems of a general cryogenic coil that is difficult to process and has a low signal-to-noise ratio.

A coil housing comprising:

the vacuum shell is arranged in an enclosing manner to form a vacuum cavity and can coat the coil body working under the low-temperature condition;

the heating shell is surrounded and established and form the heating chamber, the heating chamber is located the one side that the coil body was kept away from to the vacuum chamber, form the passageway that allows the high temperature medium to pass through in the heating chamber.

In one embodiment, the heating housing is integrally formed with the vacuum housing with a spacing layer disposed between the heating chamber and the vacuum chamber.

In one embodiment, the heating shell and the vacuum shell are assembled in a split mode, and one side of the heating shell is attached to one side, away from the coil body, of the vacuum shell.

In one embodiment, one side of the vacuum shell, which is far away from the coil body, is arc-shaped, the heating shell is a hollow arc body, and the heating shell and the vacuum shell are concentrically attached.

In one embodiment, the passageway in the heating chamber is bent; the channel is formed by arranging a barrier in the heating chamber; or the channel is a pipeline installed in the heating chamber, and a heat-conducting medium is arranged between the pipeline and the inner wall of the heating chamber and comprises fluid and/or solid; the channel extends within the heating chamber.

In one embodiment, the channel is in a serpentine configuration.

In one embodiment, the heating shell is provided with a medium inlet and a medium outlet, the medium inlet and the medium outlet are respectively communicated with two ends of the channel, and the medium inlet and the medium outlet are respectively used for introducing a high-temperature medium and discharging the high-temperature medium; the coil housing further includes an inlet pipe having one end communicating with the medium inlet and an outlet pipe having one end communicating with the medium outlet.

A cryogenic coil comprising a coil body and the coil housing of any of the above embodiments, the coil body being mounted within the coil housing.

In one embodiment, the cryogenic coil further comprises a heat source capable of delivering a hot media to the passage within the heating chamber, the heat source further capable of receiving a hot media exhausted by the passage; the high-temperature medium conveyed to the heating chamber by the heat source is liquid, solid, gas or a mixture of two or three of the liquid, the solid and the gas, and the temperature of the high-temperature medium conveyed to the heating chamber by the heat source is adjustable within a set range; the high-temperature medium discharged to the heat source from the channel is liquid, solid, gas or a mixture of two/three of the liquid, the solid and the gas.

A magnetic resonance system comprising a transmit coil and a receive coil, the receive coil being the cryogenic coil of any one of the above embodiments.

Above-mentioned coil shell, low temperature coil and magnetic resonance system, the vacuum chamber that the vacuum casing encloses to establish and forms can form effectual heat preservation effect to the coil body of cladding, and the one side of keeping away from the coil body at the vacuum casing simultaneously sets up the heating casing that can realize the heating through high temperature medium, and the heat transfer between heating casing and the vacuum casing can guarantee that the one side that the coil body was kept away from to the vacuum casing is in under the room temperature condition. The coil shell has the advantages of high heat transfer efficiency, simple structure and convenience in processing, and the heating shell arranged on one side of the vacuum shell can not increase the distance between the coil body and a measured object in the using process, so that the signal-to-noise ratio of the coil body in the coil shell is effectively ensured.

Drawings

Fig. 1 is a schematic view of a first view angle structure of a coil housing according to an embodiment of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;

fig. 3 is a schematic diagram of a second view angle structure of a coil housing according to an embodiment of the present invention;

fig. 4 is a schematic view of a channel structure in a vacuum chamber according to an embodiment of the present invention.

Wherein: 10. a coil housing; 100. a vacuum housing; 200. a vacuum chamber; 300. heating the housing; 400. a heating chamber; 500. an inlet tube; 600. an outlet pipe; 700. a channel.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 to 4, an embodiment of the present invention provides a coil housing 10, and the coil housing 10 includes a vacuum housing 100 and a heating housing 300. Wherein the vacuum housing 100 is enclosed to form a vacuum chamber 200, and the vacuum housing 100 can cover the coil body working under low temperature. It should be noted that, the vacuum casing 100 does not cover the coil body operating under low temperature condition in the vacuum chamber 200, but the inner wall of the vacuum chamber 200 formed by the vacuum casing 100 surrounds the coil body operating under low temperature condition, that is, the coil body operating under low temperature condition has the vacuum chamber 200 as an interlayer between the coil body and the outside under the vacuum casing 100. The heating housing 300 is enclosed to form a heating chamber 400, the heating chamber 400 is located at one side of the vacuum chamber 200 far away from the coil body, and a passage 700 allowing a high-temperature medium to pass through is formed in the heating chamber 400. It should be further noted that the high temperature medium in this embodiment is referred to as a coil body operating under low temperature conditions. The coil body is generally in a low-temperature working condition of minus ten degrees centigrade or even tens of degrees centigrade, so the meaning of the high-temperature medium in the embodiment means that the temperature is higher than the low-temperature working condition of the coil body. The high temperature medium in this embodiment may also be a normal temperature in general experience, such as 20-35 ℃, or slightly higher or lower than the normal temperature in general experience, which should be determined by the temperature of the normal state of the object to be detected, and the general principle is to make the temperature of the high temperature medium approach the temperature of the normal state of the object to be detected, so as to maintain the outer surface (the surface far from the coil body) of the vacuum casing 100 within a set temperature range or keep a certain constant temperature.

In the coil housing 10, the vacuum chamber 200 formed by enclosing the vacuum casing 100 can form an effective heat preservation effect on the coated coil body, meanwhile, the heating casing 300 capable of heating through a high-temperature medium is arranged on one side of the vacuum casing 100 away from the coil body, and the heat transfer between the heating casing 300 and the vacuum casing 100 can ensure that one side of the vacuum casing 100 away from the coil body is at room temperature. The coil housing 10 provided by the application has the advantages of high heat transfer efficiency, simple structure and convenience in processing, and the heating housing 300 arranged on one side of the vacuum housing 100 can not increase the distance between the coil body and the measured object in the using process, thereby effectively ensuring the signal-to-noise ratio of the coil body in the coil housing 10.

In the above embodiment, the vacuum chamber 200 enclosed by the vacuum casing 100 can effectively block the low temperature in the low temperature environment of the coil body from being rapidly transferred to the outside. After a high-temperature medium is introduced into a heating chamber 400 formed by the surrounding of the heating housing 300, one side of the vacuum housing 100 away from the coil body (in a low-temperature working condition) can be kept at a temperature close to that of the detected object. Optionally, the heating shell 300 and the vacuum shell 100 are integrally formed or assembled into a whole through a certain assembling process, as long as the close contact between the heating shell 300 and the vacuum shell 100 is ensured, and further, the heat in the heating shell 300 is effectively transferred to the vacuum shell 100. As a practical way, the heating housing 300 is integrally formed with the vacuum housing 100, and a spacing layer is disposed between the heating chamber 400 and the vacuum chamber 200, and the spacing layer may be one layer or multiple layers. The integrally formed heating housing 300 and vacuum housing 100 as a whole have higher heat transfer efficiency. As another way to realize this, as shown in fig. 1 to 3, the heating housing 300 is assembled separately from the vacuum housing 100, and one side of the heating housing 300 is attached to one side of the vacuum housing 100 away from the coil body. The heating shell 300 and the vacuum shell 100 which are assembled in a split manner are convenient to disassemble, assemble, overhaul, maintain and even replace one part of the heating shell and the vacuum shell, and can be suitable for more working conditions.

It should be understood that the present invention is not limited to the internal structural relationship between the vacuum casing 100 and the heating casing 300 in the coil housing 10 as long as the positional relationship therebetween satisfies the function of effective heat transfer. The above embodiments are merely illustrative. And it can be understood that, as long as the vacuum casing 100 can coat the coil body working under the low temperature condition, the shape of the vacuum casing 100 can be designed according to the actual working condition. As a practical matter, the overall shape of the vacuum housing 100 is a hollow sphere, a hollow triangular prism, a hollow rectangular parallelepiped, or other shapes that can satisfy the performance. As shown in fig. 1-3, in a specific embodiment of the present invention, one side of the vacuum casing 100 away from the coil body is an arc surface, correspondingly, the heating casing 300 is a hollow arc body, and the heating casing 300 is concentrically attached to the vacuum casing 100. The vacuum casing 100 extends along a central angle thereof and the heating casing 300 also extends along a central angle thereof, such that the concave sides of the vacuum casing 100 and the heating casing 300 are referred to as an inner side and an outer side, respectively. The vacuum shell 100 and the heating shell 300 are designed as hollow circular arcs, so that the contact area between the vacuum shell 100 and the heating shell 300 can be effectively increased while the volume is not remarkably increased, efficient heat transfer between the vacuum shell 100 and the heating shell 300 is further ensured, and the outside of the vacuum shell 100 is maintained at a proper temperature. Further, the vacuum casing 100 and the heating casing 300 are respectively flat hollow circular arc bodies.

In the above embodiments, the coil body operates in a low-temperature environment, which can effectively ensure that the coil body is under a relatively small resistance, and the vacuum chamber 200 formed inside the vacuum casing 100 can effectively block the cold energy in the low-temperature environment of the coil body from rapidly diffusing to the outside. The heating shell 300 can transfer heat of a high-temperature medium to the outside of the vacuum shell 100 in a heat transfer manner, so that the whole coil housing 10 is ensured to be suitable for making close contact or approach to the detected object, and a signal received by the coil body has a high signal-to-noise ratio. In each of the above embodiments, the high temperature medium may be a disposable high temperature medium (the high temperature medium flows only once in the vacuum chamber 200), or a high temperature medium repeatedly flows in as a circulating medium and is discharged out of the vacuum chamber 200 surrounded by the heating case 300. The following embodiments will describe the heating housing 300 and the heating chamber 400 formed by the housing by taking "high temperature medium as circulating medium" as an example; it is understood that the following description of the heating housing 300 and the surrounding heating chamber 400 is also applicable to the case where the high temperature medium may be a disposable high temperature medium.

As shown in fig. 1-4, in an embodiment of the present invention, the heating chamber 400 formed by enclosing the heating housing 300 forms a channel 700 allowing the high temperature medium to circulate, for example, a medium inlet and a medium outlet are formed on the heating housing 300, the high temperature medium enters the heating chamber 400 from the medium inlet on the heating housing 300, and then the high temperature medium is discharged from the heating chamber 400 through the medium outlet formed on the heating housing 300 after flowing a distance in the heating chamber 400. The high temperature medium transfers its heat to the inner side of the heating housing 300 in the process of circulating in the heating chamber 400, and then there is a certain temperature difference between the inner side of the heating housing 300 with an increased temperature and the outer side of the vacuum housing 100, because the inner side of the heating housing 300 and the outer side of the vacuum housing 100 are tightly attached, and then the inner side of the heating housing 300 with an increased temperature transfers its heat to the outer side of the vacuum housing 100 with a lower temperature by means of heat transfer until the temperature of the inner side of the heating housing 300 is close to or even the same as that of the outer side of the vacuum housing 100. However, in practical conditions, since the inner side of the vacuum casing 100 is in the low-temperature working condition of the coil body, the heat of the vacuum casing 100 is slowly transferred (the heat insulation effect of the vacuum chamber 200) to the low-temperature working environment of the coil body, and therefore the high-temperature medium, the heating casing 300 and the vacuum casing 100 are always in a dynamic heat transfer process. It can be understood that the high-temperature medium discharged from the heating chamber 400 enters the heat source corresponding to the high-temperature medium to raise the temperature of the high-temperature medium.

Further, as shown in fig. 1 to 4, the coil housing 10 further includes an inlet pipe 500 and an outlet pipe 600, one end of the inlet pipe 500 communicating with the medium inlet, and one end of the outlet pipe 600 communicating with the medium outlet. The end of the inlet pipe 500 remote from the medium inlet is communicated with the heat source of the high temperature medium, and the end of the outlet pipe 600 remote from the medium outlet is also communicated with the heat source of the high temperature medium. The heat source, the inlet pipe 500, the vacuum chamber 200, and the outlet pipe 600 form a circulation path of the high temperature medium.

In another embodiment of the present invention, as shown in fig. 4, a special channel 700 for high temperature medium is disposed inside the heating chamber 400 formed by the heating shell 300. The medium inlet and the medium outlet are respectively communicated with both ends of the channel 700, and the medium inlet and the medium outlet are respectively used for introducing and discharging a high-temperature medium. As shown in fig. 1 to 3, and the coil housing 10 further includes an inlet pipe 500 and an outlet pipe 600, one end of the inlet pipe 500 communicating with the medium inlet, and one end of the outlet pipe 600 communicating with the medium outlet. The end of the inlet pipe 500 remote from the medium inlet is communicated with the heat source of the high temperature medium, and the end of the outlet pipe 600 remote from the medium outlet is also communicated with the heat source of the high temperature medium. The heat source, the inlet pipe 500, the vacuum chamber 200, and the outlet pipe 600 form a circulation path of the high temperature medium. The high-temperature medium enters the channel 700 in the heating chamber 400 from the medium inlet on the heating housing 300, and then the high-temperature medium circulates for a distance along the channel 700 in the heating chamber 400 and then is discharged out of the heating chamber 400 from the medium outlet on the heating housing 300.

The high temperature medium transfers its heat to the sidewall of the channel 700 and further to the inside of the heating housing 300 in the process of circulating in the heating chamber 400, and then there is a certain temperature difference between the inside of the heating housing 300 with an increased temperature and the outside of the vacuum housing 100, because the inside of the heating housing 300 and the outside of the vacuum housing 100 are tightly attached, the inside of the heating housing 300 with an increased temperature transfers its heat to the outside of the vacuum housing 100 with a lower temperature by means of heat transfer, until the temperature of the inside of the heating housing 300 is close to or even the same as that of the outside of the vacuum housing 100. However, in practical conditions, since the inner side of the vacuum casing 100 is in the low-temperature working condition of the coil body, the heat of the vacuum casing 100 is slowly transferred (the heat insulation effect of the vacuum chamber 200) to the low-temperature working environment of the coil body, and therefore the high-temperature medium, the side wall of the channel 700, the heating casing 300 and the vacuum casing 100 are always in a dynamic heat transfer process. It can be understood that the high-temperature medium discharged from the heating chamber 400 enters the heat source corresponding to the high-temperature medium to raise the temperature of the high-temperature medium.

Optionally, the high temperature medium passage 700 is a closed pipe in the vacuum chamber 200 or a plurality of partitions are disposed in the heating chamber 400, and the partitions are only configured to allow the high temperature medium to flow in a predetermined direction, so as to form the high temperature medium passage 700. Both of the above forms of the passage 700 may achieve heat transfer of the high temperature medium to the side wall of the heating housing 300. Further, the channel 700 inside the heating chamber 400 is bent, and the channel 700 extends inside the heating chamber 400. The bent passage 700 can significantly increase the length of the high temperature medium flowing through the vacuum chamber 200, thereby ensuring sufficient heat exchange between the high temperature medium and the heating case 300. In an implementation, as shown in fig. 4, the channel 700 has a meander configuration, or a concentric coil configuration, etc. When the passage 700 of the high temperature medium is a closed pipe in the heating chamber 400, a heat transfer medium including a fluid and/or a solid, such as oil, is disposed between the pipe and the inner wall of the heating chamber 400. The heat transfer medium can more efficiently transfer heat on the pipe to the side wall of the heating chamber 400 (i.e., the heating housing 300) and thus to the vacuum housing 100.

The utility model also provides a low temperature coil, low temperature coil include coil body and the coil casing 10 of any one of above-mentioned scheme, and the coil body is installed in coil casing 10. Specifically, the coil body is enclosed in the vacuum housing 100. In the low-temperature coil, the vacuum chamber 200 formed by enclosing the vacuum casing 100 can form an effective heat preservation effect on the coated coil body, meanwhile, the heating casing 300 capable of realizing heating through a high-temperature medium is arranged on one side of the vacuum casing 100 far away from the coil body, and the heat transfer between the heating casing 300 and the vacuum casing 100 can ensure that one side of the vacuum casing 100 far away from the coil body is at room temperature. The coil housing 10 provided by the application has the advantages of high heat transfer efficiency, simple structure and convenience in processing, and the heating housing 300 arranged on one side of the vacuum housing 100 can not increase the distance between the coil body and the measured object in the using process, thereby effectively ensuring the signal-to-noise ratio of the coil body in the coil housing 10.

Further, the low temperature coil further includes a heat source capable of delivering the high temperature medium to the passage 700 in the heating chamber 400, and also capable of receiving the high temperature medium discharged from the passage 700. For example, the heat source is a coil that generates heat after being energized. The high-temperature medium delivered to the heating chamber 400 by the heat source is liquid, solid, gas or a mixture of two or three of them, and the temperature of the high-temperature medium delivered to the heating chamber 400 by the heat source is adjustable within a set range. The high temperature medium discharged from the channel 700 to the heat source is liquid, solid, gas or a mixture of two or three of them. An operator can adjust the temperature of the high-temperature medium by adjusting the working parameters of the heat source according to the requirements of actual working conditions, and finally, the temperature of the vacuum shell 100 is stabilized or adjusted.

An embodiment of the present invention further provides a magnetic resonance system, which includes a transmitting coil and a receiving coil, wherein the receiving coil adopts any one of the above embodiments. In the magnetic resonance system, the vacuum chamber 200 formed by enclosing the vacuum housing 100 can form an effective heat preservation effect on the coated coil body, meanwhile, the heating housing 300 capable of heating through a high-temperature medium is arranged on one side of the vacuum housing 100 away from the coil body, and the heat transfer between the heating housing 300 and the vacuum housing 100 can ensure that one side of the vacuum housing 100 away from the coil body is at room temperature. The coil housing 10 provided by the application has the advantages of high heat transfer efficiency, simple structure and convenience in processing, and the heating housing 300 arranged on one side of the vacuum housing 100 can not increase the distance between the coil body and the measured object in the using process, thereby effectively ensuring the signal-to-noise ratio of the coil body in the coil housing 10.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A coil housing, comprising:

the vacuum shell is arranged in an enclosing manner to form a vacuum cavity and can coat the coil body working under the low-temperature condition;

the heating shell is surrounded and established and form the heating chamber, the heating chamber is located the one side that the coil body was kept away from to the vacuum chamber, form the passageway that allows the high temperature medium to pass through in the heating chamber.

2. The coil housing according to claim 1, wherein the heating housing is integrally formed with the vacuum housing with a spacer layer disposed between the heating chamber and the vacuum chamber.

3. The coil housing according to claim 1, wherein the heating housing is assembled separately from the vacuum housing, and one side of the heating housing is attached to one side of the vacuum housing away from the coil body.

4. The coil casing according to claim 3, wherein a side of the vacuum casing away from the coil body is arc-shaped, the heating casing is a hollow arc body, and the heating casing and the vacuum casing are concentrically attached.

5. The coil housing according to any one of claims 1 to 4, wherein the passageway in the heating chamber is bent; the channel is formed by arranging a barrier in the heating chamber; or the channel is a pipeline installed in the heating chamber, and a heat-conducting medium is arranged between the pipeline and the inner wall of the heating chamber and comprises fluid and/or solid; the channel extends within the heating chamber.

6. The coil housing of claim 5, wherein the channel is in a serpentine configuration.

7. The coil casing according to any one of claims 1 to 4, wherein the heating shell is provided with a medium inlet and a medium outlet, the medium inlet and the medium outlet are respectively communicated with two ends of the channel, and the medium inlet and the medium outlet are respectively used for introducing and discharging a high-temperature medium; the coil housing further includes an inlet pipe having one end communicating with the medium inlet and an outlet pipe having one end communicating with the medium outlet.

8. A cryogenic coil comprising a coil body and a coil housing according to any one of claims 1 to 7, the coil body being mounted within the coil housing.

9. The cryogenic coil of claim 8 further comprising a heat source capable of delivering a hot media to the passage within the heating chamber, the heat source further capable of receiving a hot media expelled by the passage; the high-temperature medium conveyed to the heating chamber by the heat source is liquid, solid, gas or a mixture of two or three of the liquid, the solid and the gas, and the temperature of the high-temperature medium conveyed to the heating chamber by the heat source is adjustable within a set range; the high-temperature medium discharged to the heat source from the channel is liquid, solid, gas or a mixture of two/three of the liquid, the solid and the gas.

10. A magnetic resonance system comprising a transmitting coil and a receiving coil, wherein the receiving coil employs the cryogenic coil of claim 8 or 9.

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