Multi-channel coil and non-invasive rectum and prostate coil device

Abstract

The utility model relates to a multi-channel coil and non-intrusive rectum and prostate coil device, the multi-channel coil comprises a flexible coil main body, the bent coil main body is bent and fitted along the abdomen, crotch and back waist of a human body to collect signals of fitting parts, and the coil main body is a 27-channel coil. The multi-channel coil adopts brand new coil unit distribution, adjacent coil parts are overlapped and decoupled, the overlapping position is stronger, the imaging is more stable and clearer, and meanwhile, as the coil material is soft in texture and free to bend, the multi-channel coil can be comfortably attached to the belly, the crotch and the back waist of a human body in a close range and is more attached to the outer surfaces of the rectum and the prostate part, and the imaging effect is better. Therefore, a better imaging effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic resonance imaging, and particularly relates to a multi-channel coil and a non-invasive rectal and prostate coil device. Background Art

[0002] In modern medical technology, magnetic resonance imaging systems are common medical devices with wide application and obvious effects. Currently, the prostate examinations include invasive and non-invasive methods. The non-invasive examination method is to image by wrapping the lower abdomen with a coil. In the prior art, there are problems of unstable and unclear imaging in this non-invasive examination, and the coil for non-invasive examination also has problems that it cannot be bent freely and cannot be closely and comfortably attached to the outer surface of the prostate. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a multi-channel coil and a non-invasive prostate coil device with soft texture, flexible bending, stable imaging and clear imaging.

[0004] The technical solution of the utility model is a multi-channel coil, including a flexible coil body, and the bent coil body bends and fits along the human abdomen, crotch and posterior lumbar region to collect signals of the fitting parts, and the coil body is a 27-channel coil.

[0005] Preferably, the coil body includes: a first coil group, a second coil group and a third coil group. The first coil group is used to collect signals of the fitting part on the human abdomen; the second coil group is used to collect signals of the fitting part on the human crotch; the third coil group is used to collect signals of the fitting part on the human posterior lumbar region;

[0006] The adjacent parts of the first coil group and the second coil group overlap, and the adjacent parts of the second coil group and the third coil group overlap.

[0007] Preferably, the first coil group is a 14-channel coil, including a first coil, a second coil, a third coil, a fourth coil, a fifth coil, a sixth coil, a seventh coil, an eighth coil, a ninth coil, a tenth coil, an eleventh coil, a twelfth coil, a thirteenth coil and a fourteenth coil;

[0008] The first coil, the second coil, the third coil, the fourth coil, the fifth coil and the sixth coil are arranged longitudinally in sequence and the adjacent parts of each two overlap;

[0009] The seventh coil, the eighth coil, the ninth coil, the tenth coil and the eleventh coil are arranged longitudinally in sequence and the adjacent parts of each two overlap;

[0010] The thirteenth coil and the fourteenth coil are arranged longitudinally in sequence and adjacent parts overlap, and the adjacent parts of the thirteenth coil and the fourteenth coil overlap with the adjacent parts of the second coil group;

[0011] The adjacent parts of the seventh coil overlap with the first coil and the second coil, the adjacent parts of the eighth coil overlap with the second coil, the third coil and the thirteenth coil, the adjacent parts of the ninth coil overlap with the third coil, the fourth coil, the thirteenth coil and the fourteenth coil, the adjacent parts of the tenth coil overlap with the fourth coil, the fifth coil and the thirteenth coil, and the adjacent parts of the eleventh coil overlap with the fifth coil and the sixth coil;

[0012] The twelfth coil is stacked above the third coil, the fourth coil, the eighth coil, the ninth coil, the tenth coil, the thirteenth coil and the fourteenth coil, and overlaps with at least part of the third coil, at least part of the fourth coil, at least part of the eighth coil, at least part of the ninth coil, at least part of the tenth coil, at least part of the thirteenth coil and at least part of the fourteenth coil, so as to enhance the signal in the area covered by the twelfth coil.

[0013] Preferably, the second coil group is a 4-channel coil, including: the fifteenth coil, the sixteenth coil, the seventeenth coil and the eighteenth coil arranged transversely in sequence. The fifteenth coil, the sixteenth coil, the seventeenth coil and the eighteenth coil are all figure-eight coils and adjacent parts of each two overlap;

[0014] The adjacent part of the fifteenth coil overlaps with the first coil group; the adjacent part of the eighteenth coil overlaps with the third coil group.

[0015] Preferably, the third coil group is a 9-channel coil, including: the nineteenth coil, the twentieth coil, the twenty-first coil, the twenty-second coil, the twenty-third coil, the twenty-fourth coil, the twenty-fifth coil, the twenty-sixth coil and the twenty-seventh coil;

[0016] The nineteenth coil and the twentieth coil are arranged longitudinally in sequence and adjacent parts overlap, and the adjacent parts of the nineteenth coil and the twentieth coil overlap with the adjacent parts of the second coil group;

[0017] The twenty-first coil, the twenty-second coil and the twenty-third coil are arranged longitudinally in sequence and adjacent parts of each two overlap;

[0018] The twenty-fourth coil, the twenty-fifth coil and the twenty-sixth coil are arranged longitudinally in sequence and adjacent parts of each two overlap;

[0019] The 21st coil overlaps with adjacent parts of the 19th coil, the 24th coil, and the 25th coil. The 22nd coil overlaps with adjacent parts of the 19th coil, the 20th coil, the 24th coil, and the 25th coil. The 23rd coil overlaps with adjacent parts of the 20th coil, the 25th coil, and the 26th coil;

[0020] The 27th coil is stacked above the 19th coil, the 20th coil, the 21st coil, the 22nd coil, the 23rd coil, the 24th coil, the 25th coil, and the 26th coil, and overlaps with at least part of the 19th coil, at least part of the 20th coil, at least part of the 21st coil, at least part of the 22nd coil, at least part of the 23rd coil, at least part of the 24th coil, at least part of the 25th coil, and at least part of the 26th coil, so as to enhance the signal in the area covered by the 27th coil.

[0021] Another technical solution of the present utility model is a non-invasive rectal and prostate coil device, which includes a housing. A multi-channel coil as described above is arranged in the housing. An output matching board and a preamplifier are fixed on the multi-channel coil. The multi-channel coil, the output matching board, and the preamplifier are connected by cables. The preamplifier is connected to an imaging device through a wire. The housing and the multi-channel coil can be bent and attached along the human abdomen, hip, and posterior lumbar region to collect signals from the attached parts.

[0022] Preferably, the housing includes a first housing, a third housing, and a second housing connected between the first housing and the third housing. The first housing is bent and attached along the human abdomen. The second housing is bent and attached along the human hip. The third housing is attached to the posterior lumbar region of the human body;

[0023] The multi-channel coil includes a first coil group, a second coil group, and a third coil group. The first coil group is arranged in the first housing; the second coil group is arranged in the second housing; the third coil group is arranged in the third housing.

[0024] Preferably, the first housing includes a first rigid housing attached directly above the human abdomen and first flexible housings connected to both sides of the first rigid housing. The bent first flexible housings are attached along both sides of the human abdomen;

[0025] The second housing is soft and easy to bend. The bent second housing is attached along the human hip;

[0026] The third housing includes a third rigid housing and a third flexible housing wrapped on the side of the third rigid housing in contact with the human body;

[0027] The third flexible housing and the second housing are of an integrally formed structure.

[0028] Preferably, the preamplifier includes a first preamplifier and a second preamplifier. The first preamplifier is fixed inside the first housing, and the second preamplifier is fixed inside the third housing.

[0029] Preferably, straps are provided on both sides of the third housing, and the housing is fixed to the human body through the straps.

[0030] The utility model provides a multi-channel coil and a non-invasive rectal and prostate coil device, which adopts a brand-new coil unit distribution. The adjacent coil parts are overlapped and decoupled, and the overlapping position is stronger and the imaging is more stable and clear. The device senses through the multi-channel coil to achieve high-definition imaging and stable imaging, making the MRI therapeutic instrument more clear and more stable in examining the internal tissues of the rectum and prostate gland. At the same time, due to the soft texture of the coil material and its flexibility in bending, it can be closely and comfortably attached to the human abdomen, crotch and lower back, and better conforms to the outer surface of the rectum and prostate gland, thereby achieving a better imaging effect. Description of the Drawings

[0031] Figure 1 is a schematic diagram of the multi-channel coil arrangement structure of the utility model;

[0032] Figure 2 is a schematic diagram of the multi-channel coil layout of the utility model;

[0033] Figure 3 is a schematic diagram of the non-invasive rectal and prostate coil device of the utility model in a non-working state;

[0034] Figure 4 is Figure 3 the bending working state diagram of;

[0035] Figure 5 is Figure 3 the explosion diagram of;

[0036] Figure 6 is a schematic diagram of the utility model in a state of being used by a human body;

[0037] Figure 7 is Figure 6 the side view of.

[0038] Description of the Main Component Symbols:

[0039] Coil body 1; First coil group 11; Second coil group 12; Third coil group 13;

[0040] The first coil 21; the second coil 22; the third coil 23; the fourth coil 24; the fifth coil 25; the sixth coil 26; the seventh coil 27; the eighth coil 28; the ninth coil 29; the tenth coil 30; the eleventh coil 31; the twelfth coil 32; the thirteenth coil 33; the fourteenth coil 34; the fifteenth coil 35; the sixteenth coil 36; the seventeenth coil 37; the eighteenth coil 38; the nineteenth coil 39; the twentieth coil 40; the twenty - first coil 41; the twenty - second coil 42; the twenty - third coil 43; the twenty - fourth coil 44; the twenty - fifth coil 45; the twenty - sixth coil 46; the twenty - seventh coil 47;

[0041] The housing 5; the first housing 51; the first rigid housing 511; the first flexible housing 512; the female plug power port 513; the power male socket 514; the second housing 52; the third housing 53; the third rigid housing 531; the third flexible housing 532; the throat tube 533;

[0042] The output matching board 6;

[0043] The pre - amplifier 7; the first pre - amplifier 71; the second pre - amplifier 72;

[0044] The strap 8; Detailed implementation mode

[0045] The present utility model will be further described in detail below with reference to the accompanying drawings:

[0046] Please refer to Figure 1 As shown, the present utility model provides a multi - channel coil, including a flexible coil body 1. After being bent, the coil body 1 bends and fits along the human abdomen, hip, and posterior waist to collect signals from the fitting parts. The coil body 1 is a 27 - channel coil. Since the coil body 1 is made of a flexible substrate, such as a copper - clad coil, it can bend freely, can be bent according to requirements, and is closely and comfortably attached to the human body at a short distance, thereby achieving a better imaging effect.

[0047] Please refer to Figure 1 As shown, the coil body 1 includes: the first coil group 11, the second coil group 12, and the third coil group 13. The first coil group 11 is used to collect signals from the fitting part of the human abdomen; the second coil group 12 is used to collect signals from the fitting part of the human hip; the third coil group 13 is used to collect signals from the fitting part of the human posterior waist; the adjacent parts of the first coil group 11 and the second coil group 12 overlap to eliminate the coupling between the first coil group 11 and the second coil group 12; the adjacent parts of the second coil group 12 and the third coil group 13 overlap to eliminate the coupling between the second coil group 12 and the third coil group 13.

[0048] Please refer to Figure 1As shown, the first coil group 11 is a 14-channel coil, including the first coil 21, the second coil 22, the third coil 23, the fourth coil 24, the fifth coil 25, the sixth coil 26, the seventh coil 27, the eighth coil 28, the ninth coil 29, the tenth coil 30, the eleventh coil 31, the twelfth coil 32, the thirteenth coil 33, and the fourteenth coil 34; among them,

[0049] The first coil 21, the second coil 22, the third coil 23, the fourth coil 24, the fifth coil 25, and the sixth coil 26 are arranged longitudinally in sequence and partially overlap with each adjacent one, so as to eliminate the coupling between the first coil 21 and the second coil 22, between the second coil 22 and the third coil 23, between the third coil 23 and the fourth coil 24, between the fourth coil 24 and the fifth coil 25, and between the fifth coil 25 and the sixth coil 26;

[0050] The seventh coil 27, the eighth coil 28, the ninth coil 29, the tenth coil 30, and the eleventh coil 31 are arranged longitudinally in sequence and partially overlap with each adjacent one, so as to eliminate the coupling between the seventh coil 27 and the eighth coil 28, between the eighth coil 28 and the ninth coil 29, between the ninth coil 29 and the tenth coil 30, and between the tenth coil 30 and the eleventh coil 31;

[0051] The thirteenth coil 33 and the fourteenth coil 34 are arranged longitudinally in sequence and partially overlap with each other, so as to eliminate the coupling between the thirteenth coil 33 and the fourteenth coil 34; the adjacent parts of the thirteenth coil 33 and the fourteenth coil 34 overlap with the second coil group 12, so as to eliminate the coupling between the thirteenth coil 33 and the second coil group 12, and between the fourteenth coil 34 and the second coil group 12;

[0052] The adjacent parts of the seventh coil 27 overlap with the first coil 21 and the second coil 22, so as to eliminate the coupling between the seventh coil 27 and the first coil 21 and the second coil 22;

[0053] The adjacent parts of the eighth coil 28 overlap with the second coil 22, the third coil 23, and the thirteenth coil 33, so as to eliminate the coupling between the eighth coil 28 and the second coil 22, the third coil 23, and the thirteenth coil 33;

[0054] The adjacent parts of the ninth coil 29 overlap with the third coil 23, the fourth coil 24, the thirteenth coil 33, and the fourteenth coil 34, so as to eliminate the coupling between the ninth coil 29 and the third coil 23, the fourth coil 24, the thirteenth coil 33, and the fourteenth coil 34;

[0055] The adjacent parts of the tenth coil 30 overlap with the fourth coil 24, the fifth coil 25, and the thirteenth coil 33, so as to eliminate the coupling between the tenth coil 30 and the fourth coil 24, the fifth coil 25, and the thirteenth coil 33;

[0056] The eleventh coil 31 overlaps with adjacent parts of the fifth coil 25 and the sixth coil 26 to eliminate the coupling between the eleventh coil 31 and the fifth coil 25 and the sixth coil 26;

[0057] The twelfth coil 32 is stacked above the third coil 23, the fourth coil 24, the eighth coil 28, the ninth coil 29, the tenth coil 30, the thirteenth coil 33, and the fourteenth coil 34, and the twelfth coil 32 overlaps with at least part of the third coil 23, at least part of the fourth coil 24, at least part of the eighth coil 28, at least part of the ninth coil 29, at least part of the tenth coil 30, at least part of the thirteenth coil 33, and at least part of the fourteenth coil 34 to enhance the signal in the area covered by the twelfth coil 32; by setting the twelfth coil 32, the signal at the stacked coil position is stronger, and the imaging is more stable and clearer.

[0058] Please refer to Figure 1 As shown, the second coil group 12 is a 4-channel coil, including: the fifteenth coil 35, the sixteenth coil 36, the seventeenth coil 37, and the eighteenth coil 38 arranged horizontally in sequence. The fifteenth coil 35, the sixteenth coil 36, the seventeenth coil 37, and the eighteenth coil 38 are all figure-eight coils and adjacent parts overlap to eliminate the coupling between the fifteenth coil 35 and the sixteenth coil 36, between the sixteenth coil 36 and the seventeenth coil 37, and between the seventeenth coil 37 and the eighteenth coil 38. By setting the figure-eight coils, it is more conducive to receiving signals perpendicular to the main magnetic field, and the imaging is clearer;

[0059] The adjacent part of the fifteenth coil 35 overlaps with the first coil group 11 to eliminate the coupling between the fifteenth coil 35 and the first coil group 11; the adjacent part of the eighteenth coil 38 overlaps with the third coil group 13 to eliminate the coupling between the eighteenth coil 38 and the third coil group 13.

[0060] Please refer to Figure 1 As shown, the third coil group 13 is a 9-channel coil, including: the nineteenth coil 39, the twentieth coil 40, the twenty-first coil 41, the twenty-second coil 42, the twenty-third coil 43, the twenty-fourth coil 44, the twenty-fifth coil 45, the twenty-sixth coil 46, and the twenty-seventh coil 47; among them,

[0061] The nineteenth coil 39 and the twentieth coil 40 are arranged longitudinally in sequence and adjacent parts overlap to eliminate the coupling between the nineteenth coil 39 and the twentieth coil 40; the adjacent parts of the nineteenth coil 39 and the twentieth coil 40 overlap with the second coil group 12 to eliminate the coupling between the nineteenth coil 39 and the second coil group 12 and between the twentieth coil 40 and the second coil group 12;

[0062] The twenty - first coil 41, the twenty - second coil 42, and the twenty - third coil 43 are arranged longitudinally in sequence and adjacent parts of each two of them overlap, so as to eliminate the coupling between the twenty - first coil 41 and the twenty - second coil 42, and between the twenty - second coil 42 and the twenty - third coil 43;

[0063] The twenty - fourth coil 44, the twenty - fifth coil 45, and the twenty - sixth coil 46 are arranged longitudinally in sequence and adjacent parts of each two of them overlap, so as to eliminate the coupling between the twenty - fourth coil 44 and the twenty - fifth coil 45, and between the twenty - fifth coil 45 and the twenty - sixth coil 46;

[0064] The adjacent parts of the twenty - first coil 41 overlap with the nineteenth coil 39, the twenty - fourth coil 44, and the twenty - fifth coil 45, so as to eliminate the coupling between the twenty - first coil 41 and the nineteenth coil 39, the twenty - fourth coil 44, and the twenty - fifth coil 45;

[0065] The adjacent parts of the twenty - second coil 42 overlap with the nineteenth coil 39, the twentieth coil 40, the twenty - fourth coil 44, and the twenty - fifth coil 45, so as to eliminate the coupling between the twenty - second coil 42 and the nineteenth coil 39, the twentieth coil 40, the twenty - fourth coil 44, and the twenty - fifth coil 45;

[0066] The adjacent parts of the twenty - third coil 43 overlap with the twentieth coil 40, the twenty - fifth coil 45, and the twenty - sixth coil 46, so as to eliminate the coupling between the twenty - third coil 43 and the twentieth coil 40, the twenty - fifth coil 45, and the twenty - sixth coil 46;

[0067] The twenty - seventh coil 47 is stacked above the nineteenth coil 39, the twentieth coil 40, the twenty - first coil 41, the twenty - second coil 42, the twenty - third coil 43, the twenty - fourth coil 44, the twenty - fifth coil 45, and the twenty - sixth coil 46, and at least part of the twenty - seventh coil 47 overlaps with at least part of the nineteenth coil 39, at least part of the twentieth coil 40, at least part of the twenty - first coil 41, at least part of the twenty - second coil 42, at least part of the twenty - third coil 43, at least part of the twenty - fourth coil 44, at least part of the twenty - fifth coil 45, and at least part of the twenty - sixth coil 46, so as to enhance the signal in the coverage area of the twenty - seventh coil 47; by setting the twenty - seventh coil 47, the signal at the stacked coil position is stronger, and the imaging is more stable and clearer.

[0068] Please refer to Figures 2 to 7As shown in the figure, the present utility model also provides a non-invasive rectal and prostate coil device, which includes a housing 5. Inside the housing 5, there is a multi-channel coil as described above. An output matching board 6 and a preamplifier 7 are fixed on the multi-channel coil. The multi-channel coil, the output matching board 6 and the preamplifier 7 are connected by cables. The preamplifier 7 is connected to the imaging device through a wire. The housing 5 and the multi-channel coil can be bent and fitted along the human abdomen, crotch and posterior lumbar region to collect signals from the fitted parts. The non-invasive rectal and prostate coil device provided by the present utility model can be closely and comfortably attached to the human abdomen, crotch and posterior lumbar region by using a housing and a multi-channel coil that can be bent freely, and is more closely attached to the outer surface of the rectal and prostate regions, so as to achieve a better imaging effect and obtain high-definition and stable imaging.

[0069] Please refer to Figures 2 to 5 As shown in the figure, the housing 5 includes a first housing 51, a third housing 53 and a second housing 52 connected between the first housing 51 and the third housing 53. The first housing 51 is bent and fitted along the human abdomen, the second housing 52 is bent and fitted along the human crotch, and the third housing 53 is fitted to the posterior lumbar region of the human body;

[0070] The multi-channel coil includes a first coil group 11, a second coil group 12 and a third coil group 13. The first coil group 11 is arranged inside the first housing 51 and is used to collect signals from the fitted part of the human abdomen; the second coil group 12 is arranged inside the second housing 52 and is used to collect signals from the fitted part of the human crotch; the third coil group 13 is arranged inside the third housing 53 and is used to collect signals from the fitted part of the posterior lumbar region of the human body.

[0071] Further, please refer to Figure 3 、 Figure 4 、 Figure 6 As shown in the figure, the first housing 51 includes a first rigid housing 511 that fits above the human abdomen and first flexible housings 512 connected to both sides of the first rigid housing 511. The bent first flexible housings 512 are fitted along both sides of the human abdomen; the second housing 52 is soft and easy to bend, and the bent second housing 52 is fitted along the human crotch; the third housing 53 includes a third rigid housing 531 and a third flexible housing 532 wrapped on the side of the third rigid housing 531 in contact with the human body. The third flexible housing 532 is in direct contact with the human body, so that the third housing 53 is more comfortably fitted to the posterior lumbar region of the human body; the third flexible housing 532 and the second housing 52 are of an integrally formed structure. Since the first flexible housing 512, the second housing 52 and the third flexible housing 532 are all made of flexible materials, for example: made of thin soft sponge material covered with leather or made of flexible foaming material, they are soft in texture and can be bent freely, and can be closely and comfortably attached to the human abdomen, crotch and posterior lumbar region, making the housing more closely attached to the outer surface of the rectal and prostate regions, so as to achieve a better imaging effect.

[0072] Please refer to Figure 5 as shown, the preamplifier 7 includes a first preamplifier 71 and a second preamplifier 72. The first preamplifier 71 is fixed inside the first housing 51, and the second preamplifier 72 is fixed inside the third housing 53.

[0073] Please refer to Figure 5 、 Figure 6 、 Figure 7 as shown, straps 8 are provided on both sides of the third housing 53, and the housing 5 is fixed to the human body through the straps 8.

[0074] In one example, the straps on both sides of the third housing 53 can be connected together by plugging. For example: a female plug strap is installed on one side of the third housing 53, and a male plug strap is installed on the other side. The strap is wound around the housing 5, and the housing 5 is fixed to the human body through plugging.

[0075] Please refer to Figure 5 as shown, the specific assembly steps of the non-invasive rectal and prostate coil device provided by the present utility model are as follows:

[0076] Put the third flexible housing 532 on the top of the third rigid housing 531, fix the first rigid housing 511 at the end of the second housing 52, fix a first flexible housing 512 on the right side of the first rigid housing 511, and fix the other first flexible housing 512 on the left side of the first rigid housing 511.

[0077] Fix the output matching board 6 on the coil body 1, and then put it into the inside of the housing 1.

[0078] Fix the first preamplifier 71 on the inner surface of the first housing 51, fix the second preamplifier 72 on the inner surface of the third housing 53, connect the first preamplifier 71, the second preamplifier 72, the output matching board 6, and the coil body 1 with cables, and then lead out through the throat tube 533.

[0079] Install a female plug strap 8 on the right side of the third housing 53, and install a male plug strap 8 on the left side. Fix the throat tube 533 at the lower right corner of the third housing 53, and lock and fix the third housing 53 with screws.

[0080] Fix the female plug power socket 513 on the inner surface of the first rigid housing 511, pass the cable through and connect it to the internal preamplifier 7, output matching board 6, and coil body 1, and lock and fix the first housing 51 with screws.

[0081] Insert the male power socket 514 into the female plug power socket 513 to connect the power supply for use.

[0082] Please refer toFigures 6 to 7 As shown in the figure, the principle of use of the non-invasive rectal and prostate coil device provided by the present utility model is as follows:

[0083] First, after the patient lies down in the correct position, the third housing 53 is fitted to the posterior lumbar region; then, the second housing 52 is bent up along the crotch and the first housing 51 is pressed tightly against the human abdomen, and then the flexible housings 512 on both sides are bent down along the waist, and the straps 8 on the third housing 53 are used to wrap around the non-invasive rectal and prostate coil device to fix the device on the human body.

[0084] The above are only the preferred embodiments of the present utility model, and all equivalent changes and modifications made according to the scope of the claims of the present utility model shall fall within the scope covered by the claims of the present utility model.

Claims

1. A multi-channel coil, characterized in that, It includes a flexible coil body which, after being bent, conforms to the human abdomen, crotch and posterior lumbar region to collect signals from the conforming parts. The coil body is a 27-channel coil. The coil body includes: a first coil group, a second coil group and a third coil group. The first coil group is used to collect signals from the conforming part of the human abdomen; the second coil group is used to collect signals from the conforming part of the human crotch; the third coil group is used to collect signals from the conforming part of the human posterior lumbar region. The adjacent parts of the first coil group and the second coil group overlap, and the adjacent parts of the second coil group and the third coil group overlap.

2. The multi-channel coil according to claim 1, wherein The first coil group is a 14-channel coil, including a first coil, a second coil, a third coil, a fourth coil, a fifth coil, a sixth coil, a seventh coil, an eighth coil, a ninth coil, a tenth coil, an eleventh coil, a twelfth coil, a thirteenth coil and a fourteenth coil; The first coil, the second coil, the third coil, the fourth coil, the fifth coil and the sixth coil are arranged longitudinally in sequence and the adjacent parts of each two of them overlap; The seventh coil, the eighth coil, the ninth coil, the tenth coil and the eleventh coil are arranged longitudinally in sequence and the adjacent parts of each two of them overlap; The thirteenth coil and the fourteenth coil are arranged longitudinally in sequence and their adjacent parts overlap, and the adjacent parts of the thirteenth coil and the fourteenth coil and the second coil group overlap; The adjacent parts of the seventh coil overlap with those of the first coil and the second coil, the adjacent parts of the eighth coil overlap with those of the second coil, the third coil and the thirteenth coil, the adjacent parts of the ninth coil overlap with those of the third coil, the fourth coil, the thirteenth coil and the fourteenth coil, the adjacent parts of the tenth coil overlap with those of the fourth coil, the fifth coil and the thirteenth coil, and the adjacent parts of the eleventh coil overlap with those of the fifth coil and the sixth coil; The twelfth coil is stacked above the third coil, the fourth coil, the eighth coil, the ninth coil, the tenth coil, the thirteenth coil and the fourteenth coil, and overlaps with at least part of the third coil, at least part of the fourth coil, at least part of the eighth coil, at least part of the ninth coil, at least part of the tenth coil, at least part of the thirteenth coil and at least part of the fourteenth coil, so as to enhance the signals in the area covered by the twelfth coil.

3. The multi-channel coil according to claim 1, wherein, The second coil group is a 4-channel coil, including a fifteenth coil, a sixteenth coil, a seventeenth coil and an eighteenth coil arranged horizontally in sequence. The fifteenth coil, the sixteenth coil, the seventeenth coil and the eighteenth coil are all figure-8 coils and the adjacent parts of each two of them overlap; The adjacent part of the fifteenth coil overlaps with the first coil group; the adjacent part of the eighteenth coil overlaps with the third coil group.

4. The multi-channel coil according to claim 1, wherein The third coil group is a 9-channel coil, including a nineteenth coil, a twentieth coil, a twenty-first coil, a twenty-second coil, a twenty-third coil, a twenty-fourth coil, a twenty-fifth coil, a twenty-sixth coil and a twenty-seventh coil; The nineteenth coil and the twentieth coil are arranged longitudinally in sequence and adjacent parts thereof overlap, and the adjacent parts of the nineteenth coil and the twentieth coil overlap with the adjacent parts of the second coil group; The twenty-first coil, the twenty-second coil, and the twenty-third coil are arranged longitudinally in sequence and adjacent parts thereof overlap pairwise; The twenty-fourth coil, the twenty-fifth coil, and the twenty-sixth coil are arranged longitudinally in sequence and adjacent parts thereof overlap pairwise; The adjacent parts of the twenty-first coil overlap with the adjacent parts of the nineteenth coil, the twenty-fourth coil, and the twenty-fifth coil, the adjacent parts of the twenty-second coil overlap with the adjacent parts of the nineteenth coil, the twentieth coil, the twenty-fourth coil, and the twenty-fifth coil, and the adjacent parts of the twenty-third coil overlap with the adjacent parts of the twentieth coil, the twenty-fifth coil, and the twenty-sixth coil; The twenty-seventh coil is stacked above the nineteenth coil, the twentieth coil, the twenty-first coil, the twenty-second coil, the twenty-third coil, the twenty-fourth coil, the twenty-fifth coil, and the twenty-sixth coil, and overlaps with at least part of the nineteenth coil, at least part of the twentieth coil, at least part of the twenty-first coil, at least part of the twenty-second coil, at least part of the twenty-third coil, at least part of the twenty-fourth coil, at least part of the twenty-fifth coil, and at least part of the twenty-sixth coil, so as to enhance the signal in the area covered by the twenty-seventh coil.

5. A non-invasive rectal and prostate coil device, comprising a housing, characterized in that, A multi-channel coil as described in any one of claims 1-4 is provided in the housing, an output matching board and a preamplifier are fixed on the multi-channel coil, the multi-channel coil, the output matching board and the preamplifier are connected by a cable, the preamplifier is connected to an imaging device through a wire, and the housing and the multi-channel coil can be bent and attached along the human abdomen, hip, and posterior lumbar region to collect signals of the attached parts.

6. The non-invasive rectal and prostate coil device according to claim 5, characterized in that, The housing includes a first housing, a third housing, and a second housing connected between the first housing and the third housing. The first housing is bent and attached along the human abdomen, the second housing is bent and attached along the human hip, and the third housing is attached to the human posterior lumbar region; The multi-channel coil includes a first coil group, a second coil group, and a third coil group. The first coil group is provided in the first housing; the second coil group is provided in the second housing; the third coil group is provided in the third housing.

7. The non-invasive rectal and prostate coil device according to claim 6, wherein The first housing includes a first rigid housing attached to directly above the human abdomen and first flexible housings connected to both sides of the first rigid housing. The bent first flexible housings are attached along both sides of the human abdomen; The second housing is soft and easy to bend, and the bent second housing is attached along the human hip; The third housing includes a third rigid housing and a third flexible housing wrapped on the side of the third rigid housing in contact with the human body; The third flexible housing and the second housing are of an integrally formed structure.

8. The non-invasive rectal and prostate coil device according to claim 6, wherein, The preamplifier includes a first preamplifier and a second preamplifier. The first preamplifier is fixed in the first housing, and the second preamplifier is fixed in the third housing.

9. The non-invasive rectal and prostate coil device according to claim 6, wherein Straps are provided on both sides of the third housing, and the housing is fixed to the human body through the straps.

Images