A device for using a head and neck coil arrangement for foot, ankle scans

Abstract

The present application relates to a kind of head and neck coil device for foot, ankle scanning device, including head and neck coil device for head magnetic resonance imaging, also including support, for placing foot;The support and the head and neck coil device can be detachably connected.The present application has effectively utilized head and neck coil device for foot, ankle scanning imaging, can save cost, also can be applicable to different foot length of patient, applicability is strong, more can eliminate the interference of head coil part second time adjacent channel coil, improves the quality of imaging and the like advantages.

Description

Technical fields:

[0001] This invention relates to the field of magnetic resonance imaging technology, and in particular to a device for scanning the feet and ankles using a head and neck coil device. Background technology:

[0002] Magnetic resonance imaging (MRI), also known as magnetic resonance imaging or nuclear magnetic resonance imaging (NMRI), is another major advancement in medical imaging after CT. Since its application in the 1980s, it has developed at an extremely rapid pace. Its basic principle is to place the human body in a special magnetic field. When the subject is placed in this field, the hydrogen atoms within the body are polarized. Radio frequency pulses excite the hydrogen nuclei within the body, causing them to resonate and absorb energy. After the radio frequency pulses cease, the hydrogen nuclei emit radio signals at a specific frequency, releasing the absorbed energy. This released energy is recorded by an external receiver and processed by a computer to obtain an image.

[0003] Radio frequency (RF) coils are a crucial component of magnetic resonance imaging (MRI) systems. They generate RF pulses to excite the scanned object, producing magnetic resonance (MR) signals. The RF coils then receive these MMR signals, and subsequent data processing yields 2D or 3D images of the scanned object. Local coils are widely used to improve the acquisition of MMR signals from the scanned area and enhance the image's signal-to-noise ratio. Local coils are often designed for a specific scanned area, such as those for the foot or ankle, the wrist, or the spine.

[0004] This method of assigning a local coil to each local area, while beneficial for improving local imaging quality, also increases medical costs. Specifically, a head and neck coil needs to be purchased for the head and neck area, and a foot and ankle coil needs to be purchased for the feet and ankles, thus increasing costs.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention:

[0006] To address the aforementioned problems in the prior art, this invention proposes a device for scanning the feet and ankles using a head and neck coil device, comprising: a head and neck coil device for magnetic resonance imaging of the head and neck, and a support for placing the feet; the support and the head and neck coil device are detachably connected.

[0007] Furthermore, the bracket includes a placement part and a limiting part and a supporting part respectively disposed on the placement part.

[0008] Furthermore, a strap is provided on the placement part to fix the patient's foot in place.

[0009] Furthermore, the head and neck coil device includes an upper coil shell and a lower coil shell; the upper coil shell and the lower coil shell are detachably connected; the upper coil shell is composed of an upper shell top wall, an upper shell side wall, and an upper shell neck; the lower coil shell is composed of a lower shell side wall, a lower shell bottom wall, and a lower shell neck; a head coil is disposed within the upper shell top wall, upper shell side wall, lower shell side wall, and lower shell bottom wall; an upper shell neck coil is disposed within the upper shell neck; a lower shell neck coil is disposed within the lower shell neck; and a breathing hole is disposed on the upper shell top wall.

[0010] Furthermore, the breathing hole is located in the center of the top wall of the upper shell, and its maximum width d ≤ 140 mm.

[0011] Furthermore, the maximum width d of the breathing hole (101) is ≥100mm.

[0012] Furthermore, at least one vent (102) is provided on the top wall (103) of the upper shell on the left and / or right sides of the breathing hole (101).

[0013] Furthermore, cable guide grooves (204) are respectively provided on the left and right ends of the lower shell sidewall (201).

[0014] Furthermore, the placement part (602) is placed on the bottom side of the inner wall (205) of the lower coil shell (2); the limiting part (601) is placed in the cable guide groove (204); the support part (603) is in contact with the rear side of the inner wall (205) of the lower coil shell (2).

[0015] Further, the head coil includes eight channel coils, each formed by copper wire strips, and thirteen de-inductance capacitors; the eight channel coils are channel coil one, channel coil two, channel coil three, channel coil four, channel coil five, channel coil six, channel coil seven, and channel coil eight; the thirteen de-inductance capacitors are de-inductance capacitor one, de-inductance capacitor two, de-inductance capacitor three, de-inductance capacitor four, de-inductance capacitor five, de-inductance capacitor six, de-inductance capacitor seven, de-inductance capacitor eight, de-inductance capacitor nine, de-inductance capacitor ten, de-inductance capacitor eleven, de-inductance capacitor twelve, and de-inductance capacitor thirteen; the copper wire strips of channel coil one are sequentially electrically connected to de-inductance capacitor twelve, de-inductance capacitor thirteen, de-inductance capacitor two, and de-inductance capacitor three; the copper wire strips of channel coil two are sequentially electrically connected to de-inductance capacitor one, de-inductance capacitor two, de-inductance capacitor four, and de-inductance capacitor five; the copper wire strips of channel coil three are sequentially electrically connected to de-inductance capacitor twelve, de-inductance capacitor thirteen, de-inductance capacitor two, and de-inductance capacitor three ... two are sequentially electrically connected to de-inductance capacitor one, de-inductance capacitor two, de-inductance capacitor four, and de-inductance capacitor five; the copper wire strips of channel coil three are sequentially electrically connected to de-inductance capacitor twelve, de-inductance capacitor thirteen, de-inductance capacitor three, and de-inductance capacitor three; the copper wire strips of channel coil two are sequentially electrically connected to de- The copper wire of channel coil four is electrically connected to capacitors three, four, and six; the copper wire of channel coil four is electrically connected to capacitors five, four, two, thirteen, eleven, nine, and seven in sequence; the copper wire of channel coil five is electrically connected to capacitors six, four, two, thirteen, eleven, nine, and eight in sequence; the copper wire of channel coil six is ​​electrically connected to capacitors seven, nine, and ten in sequence; the copper wire of channel coil seven is electrically connected to capacitors eight, nine, eleven, and twelve in sequence; the copper wire of channel coil eight is electrically connected to capacitors ten, eleven, thirteen, and one in sequence; the eight channel coils partially overlap each other.

[0016] Furthermore, at the intersection of the copper wires of channel coil six and channel coil seven, respectively, a channel coil six plug-in device and a channel coil seven plug-in device are respectively provided on the copper wires of channel coil six and channel coil seven. The channel coil six plug-in device can disconnect / connect the copper wires of channel coil six, and the channel coil seven plug-in device can disconnect / connect the copper wires of channel coil seven. At the intersection of the copper wires of channel coil two and channel coil three, respectively, a channel coil two plug-in device and a channel coil three plug-in device are respectively provided on the copper wires of channel coil two and channel coil three. The channel coil two plug-in device can disconnect / connect the copper wires of channel coil two, and the channel coil three plug-in device can disconnect / connect the copper wires of channel coil three. An inductor plug-in device A is provided between the de-inductance capacitor three and the de-inductance capacitor four, which can disconnect / connect the de-inductance capacitor three and the de-inductance capacitor four. An inductor plug-in device B is provided between the de-inductance capacitor eight and the de-inductance capacitor nine, which can disconnect / connect the de-inductance capacitor eight and the de-inductance capacitor nine.

[0017] Further, the channel coil six insertion / removal device includes a channel coil six contact A disposed on the copper strip wire of channel coil six on the side overlapping with channel coil seven, and a channel coil six contact B disposed on the copper strip wire of channel coil six on the other side; the channel coil seven insertion / removal device includes a channel coil seven contact B disposed on the copper strip wire of channel coil seven on the side overlapping with channel coil six, and a channel coil seven contact A disposed on the copper strip wire of channel coil seven on the other side; the channel coil two insertion / removal device includes a channel coil two contact B disposed on the copper strip wire of channel coil two on the side overlapping with channel coil three, and... The channel coil two contact A is located on the copper wire of the channel coil two on the other side; the channel coil three plugging and unplugging device includes the channel coil three contact A located on the copper wire of the channel coil three on the side overlapping with the channel coil two and the channel coil three contact B located on the copper wire of the channel coil three on the other side; the inductor plugging and unplugging device A includes an upper contact of the inductor plugging and unplugging device A connected to the de-inductance capacitor three and a lower contact of the inductor plugging and unplugging device A connected to the de-inductance capacitor four; the inductor plugging and unplugging device B includes an upper contact of the inductor plugging and unplugging device B connected to the de-inductance capacitor nine and a lower contact of the inductor plugging and unplugging device B connected to the de-inductance capacitor eight.

[0018] Furthermore, the second contact A of the channel coil, the third contact A of the channel coil, the upper contact of the inductor plug-in device A, the upper contact of the inductor plug-in device B, the seventh contact A of the channel coil, and the sixth contact A of the channel coil are all located on the bottom surface of the upper shell side wall; the second contact B of the channel coil, the third contact B of the channel coil, the lower contact of the inductor plug-in device A, the lower contact of the inductor plug-in device B, the seventh contact B of the channel coil, and the sixth contact B of the channel coil are all located on the top surface of the lower shell side wall.

[0019] Furthermore, the upper shell neck coil includes three channel coils; the three channel coils are channel coil nine, channel coil ten, and channel coil eleven; channel coil ten and channel coil eleven partially overlap; and channel coil nine partially overlaps with both channel coil ten and channel coil eleven.

[0020] Furthermore, the lower shell neck coil includes five channel coils; the five channel coils are channel coil twelve, channel coil thirteen, channel coil fourteen, channel coil fifteen, and channel coil sixteen; channel coil fifteen partially overlaps with channel coil twelve, channel coil fourteen, and channel coil sixteen; channel coil thirteen partially overlaps with channel coil twelve, channel coil fourteen, channel coil fifteen, and channel coil sixteen; and channel coil twelve partially overlaps with channel coil fourteen and channel coil sixteen.

[0021] Compared with existing technologies, the present invention provides a device for using a head and neck coil for foot and ankle scanning. A detachable bracket is mounted on the head and neck coil for placing the foot, allowing the device to be used for magnetic resonance imaging of the foot and ankle. Hospitals no longer need to purchase separate foot and ankle coils, saving costs. Furthermore, a breathing hole is provided on the upper shell of the coil in the head and neck coil, accommodating patients with different foot lengths, thus enhancing its applicability. Additionally, multiple anti-inductance capacitors are provided on the head coil to eliminate some of the inter-coupling interference between adjacent channels, improving image quality. Therefore, the present invention has the advantages of effectively utilizing a head and neck coil for foot and ankle scanning imaging, saving costs, accommodating patients with different foot lengths, enhancing applicability, and eliminating some of the inter-coupling interference between adjacent channels of the head coil, thereby improving image quality. Attached image description:

[0022] Figure 1 This is a schematic diagram of the structure of the device of the present invention;

[0023] Figure 2 This is a schematic diagram of the head and neck coil device of the present invention in one embodiment;

[0024] Figure 3 This is a top view of a first embodiment of the head and neck coil device of the present invention;

[0025] Figure 4 This is a schematic diagram of the head and neck coil device of the present invention in embodiment two;

[0026] Figure 5 This is a top view of Embodiment 2 of the head and neck coil device of the present invention;

[0027] Figure 6 This is a schematic diagram of the head coil of the head and neck coil device of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the upper shell neck coil of the head and neck coil device of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the lower shell neck coil of the head and neck coil device of the present invention;

[0030] Figure 9 This is a schematic diagram of the support structure of the device of the present invention;

[0031] The attached diagram is labeled as follows: 1-coil upper shell, 101-breathing hole, 102-vent hole, 103-top wall of upper shell, 104-side wall of upper shell, 105-neck of upper shell, 2-lower shell of coil, 201-side wall of lower shell, 202-bottom wall of lower shell, 203-neck of lower shell, 204-cable guide groove, 205-inner wall of lower shell of coil, 3-head coil, 301-head coil of upper shell, 30101a-second contact A of channel coil, 30101b-second contact B of channel coil, 30102a-seventh contact A of channel coil, 3010... 2b - Channel coil contact 7 (B), 30103 - Inductor plug-in / plug-out device A upper contact, 30104 - Inductor plug-in / plug-out device B upper contact, 30105 - Inductance-reducing capacitor 3, 30106 - Inductance-reducing capacitor 2, 30107 - Inductance-reducing capacitor 1, 30108 - Inductance-reducing capacitor 13, 30109 - Inductance-reducing capacitor 12, 30110 - Inductance-reducing capacitor 11, 30111 - Inductance-reducing capacitor 10, 30112 - Inductance-reducing capacitor 9, 30113 - Channel coil 7, 30114 - Channel coil 8, 30115 - Channel coil 1 30116 - Channel Coil II; 302 - Lower Shell Head Coil; 30201a - Channel Coil Three-Contact A; 30201b - Channel Coil Three-Contact B; 30202a - Channel Coil Six-Contact A; 30202b - Channel Coil Six-Contact B; 30203 - Inductor Insertion / Removal Device A Lower Contact; 30204 - Inductor Insertion / Removal Device B Lower Contact; 30205 - Inductance-Depleting Capacitor VIII; 30206 - Inductance-Depleting Capacitor VII; 30207 - Inductance-Depleting Capacitor VI; 30208 - Inductance-Depleting Capacitor V; 30209 - Inductance-Depleting Capacitor IV 30210-Channel Coil Six, 30211-Channel Coil Five, 30212-Channel Coil Four, 30213-Channel Coil Three, 4-Upper Shell Neck Coil, 401-Channel Coil Nine, 402-Channel Coil Ten, 403-Channel Coil Eleven, 5-Lower Shell Neck Coil, 501-Channel Coil Twelve, 502-Channel Coil Thirteen, 503-Channel Coil Fourteen, 504-Channel Coil Fifteen, 505-Channel Coil Sixteen, 6-Bracket, 601-Limiting Part, 602-Placement Part, 603-Support Part. Detailed implementation method:

[0032] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0033] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0034] like Figure 1As shown, an apparatus for using a head and neck coil device for foot and ankle scanning includes: a head and neck coil device for head and neck magnetic resonance imaging and a support 6, the support 6 being used to place the foot, and the support 6 and the head and neck coil device being detachably connected.

[0035] 6-piece bracket Figure 9 As shown, it includes a placement part 602 and a limiting part 601 and a supporting part 603 respectively provided on the placement part 602. The placement part 602 is used to place the patient's feet. The limiting part 601 can prevent the support 6 from moving on the head and neck coil device. The supporting part 603 supports the support 6 so that it does not tilt and maintains a fixed angle.

[0036] Furthermore, to ensure that the foot and ankle remain stationary during imaging, a strap is provided on the placement part 602. The strap binds the patient's foot to the placement part 602, which can fix the patient's foot in place.

[0037] Patients have feet of varying lengths. To accommodate the feet of patients with different foot lengths within the head and neck coil device, this invention provides an optimal embodiment of the head and neck coil device, as follows: Figure 2 , Figure 3 As shown, the head and neck coil device includes an upper coil shell 1 and a lower coil shell 2; the upper coil shell 1 and the lower coil shell 2 are detachably connected; the upper coil shell 1 is composed of an upper shell top wall 103, an upper shell side wall 104, and an upper shell neck 105; the lower coil shell 2 is composed of a lower shell side wall 201, a lower shell bottom wall 202, and a lower shell neck 203. A head coil 3 is disposed inside the upper shell top wall 103, upper shell side wall 104, lower shell side wall 201, and lower shell bottom wall 202; an upper shell neck coil 4 is disposed inside the upper shell neck 105; and a lower shell neck coil 5 is disposed inside the lower shell neck 203. A breathing hole 101 is provided at the center of the upper shell top wall 103. When the patient's legs are relatively long, the patient's toes can extend out through the breathing hole 101. At the same time, when the patient's head and neck are placed in the space between the upper coil shell 1 and the lower coil shell 2 for a long time during head and neck imaging, the breathing hole 101 can also facilitate the patient's breathing.

[0038] The existing head and neck coil device generally has a cross-sectional perimeter of about 760mm. Eight channel coils are evenly distributed in the combination of upper shell 1 and lower shell 2. The average width of each channel coil is 760mm / 8 = 95mm. In order not to affect the uniformity of the electromagnetic signal inside the head and neck coil device of the present invention and to meet the standard requirements, the width between channels should not differ too much. If a certain channel is enlarged by 50%, then the width of this channel is 95*(1+50%)≈150mm. Since the channel coil is wound around the breathing hole 101, considering the shell wall thickness of the breathing hole 101, the D value is taken as 140mm, that is, the maximum width d of the breathing hole 101 is ≤140mm.

[0039] The maximum width of the breathing hole 101 is set to d = 140mm. The head coil (eight-channel coil) of the existing head and neck coil device is placed inside the upper and lower coil shells. The signal quantities of the eight channel coils are measured, and the measurement data are shown in the table below:

[0040]

[0041] The data in the table above shows that when d = 140mm, the signal quantity of each channel coil meets the standard requirements. Therefore, when d < 140mm, the spacing between the channel coils will be smaller, the signal quantity of the channel coils will be larger, and the standard requirements will be better met.

[0042] Meanwhile, since 90% of adults have a foot width of less than 100mm, in order to meet the foot width requirements of different patients to the greatest extent, the maximum width d of the breathing hole 101 is ≥100mm.

[0043] The head and neck coil device in Embodiment 1 not only solves the problem of leg length during magnetic imaging of the patient's feet and ankles, but also solves the breathing problem during magnetic imaging of the head and neck. Based on this, Embodiment 2 of the head and neck coil device of the present invention is further provided, as follows: Figure 5 , Figure 6 As shown, during imaging of the patient's head and neck, the patient's head needs to be placed in the space between the upper shell 1 and the lower shell 2 of the coil for a long time. For the patient's comfort, a vent 102 is provided on the top wall 103 of the upper shell on the left or right side of the breathing hole 101, or a vent 102 is provided on both the left and right sides of the top wall 103 of the upper shell. In this way, when the patient's head is placed in the space between the upper shell 1 and the lower shell 2, the vent 102 can allow air and light to pass through, providing comfort to the patient. There can be one or multiple vent 102.

[0044] Furthermore, to facilitate cable storage in the device of the present invention, cable guide grooves 204 are respectively provided on the left and right ends of the side wall 201 of the lower shell. The cable can be placed on the cable guide groove 204. When imaging the foot and ankle, the placement part 602 is placed on the bottom side of the inner wall 205 of the lower coil shell 2, and the limiting part 601 is placed in the cable guide groove 204, so the bracket 6 will not move. At the same time, the support part 603 contacts the rear side of the inner wall 205 of the lower coil shell 2, supporting the bracket 6 and keeping it at a certain angle.

[0045] Meanwhile, the present invention provides an improved head coil 3 in the head and neck coil device, which overcomes the defect of existing head coils that do not eliminate the mutual inductance of some second-to-second-adjacent channel coils, such as... Figure 6As shown, it includes eight channel coils, each formed by copper wire strips, and thirteen de-inductance capacitors. The eight channel coils are channel coil one (30115), channel coil two (30116), channel coil three (30213), channel coil four (30212), channel coil five (30211), channel coil six (30210), channel coil seven (30113), and channel coil eight (30114). The thirteen de-inductance capacitors are de-inductance capacitor one (30107), de-inductance capacitor two (30106), de-inductance capacitor three (30105), de-inductance capacitor four (30209), de-inductance capacitor five (30208), de-inductance capacitor six (30207), de-inductance capacitor seven (30206), and de-inductance capacitor eight (30205). The following capacitors are connected in series: capacitor 9 (30112), capacitor 10 (30111), capacitor 11 (30110), capacitor 12 (30109), and capacitor 13 (30108); the copper wire of channel coil 1 (30115) is connected in series with capacitors 12 (30109), 13 (30108), 2 (30106), and 3 (30105); the copper wire of channel coil 2 (30116) is connected in series with capacitors 1 (30107), 2 (30106), 4 (30209), and 5 (30208); the copper wire of channel coil 3 (30213) is connected in series with capacitors 3 (30105), 4 (30209), and 5 (30208). 09 and the de-inductance capacitor 6 30207 are electrically connected; the copper strip wire of the channel coil 4 30115 is sequentially connected to the de-inductance capacitors 5 30208, 4 30209, 2 30106, 13 30108, 11 30110, 9 30112 and 7 30206; the copper strip wire of the channel coil 5 30211 is sequentially connected to the de-inductance capacitors 6 30207, 4 30209, 2 30106, 13 30108, 11 30110, 9 30112 and 8 30205; the channel coil 6 30 The copper wire of 210 is sequentially connected to the inductance-reducing capacitors 7 (30206), 9 (30112), and 10 (30111); the copper wire of channel coil 7 (30113) is sequentially connected to the inductance-reducing capacitors 8 (30205), 9 (30112), 11 (30110), and 12 (30109); the copper wire of channel coil 8 (30114) is sequentially connected to the inductance-reducing capacitors 10 (30111), 11 (30110), 13 (30108), and 1 (30107); the eight channel coils partially overlap each other, and the head coil 3 is embedded in the combination of the upper coil shell 1 and the lower coil shell 2.

[0046] Because the upper coil shell 1 and the lower coil shell 2 are detachably connected, the head coil 3 also needs to be divided into two detachable parts: the upper shell head coil 301 and the lower shell head coil 302. Specifically, a channel coil six plug-in device and a channel coil seven plug-in device are respectively installed on the copper strip wires of channel coil six 30210 and channel coil seven 30113 at the intersection of the copper strip wires. The channel coil six plug-in device can connect the channel coil 30210 and channel coil seven 30113. The copper strip wire of coil six 30210 is disconnected / connected; the insertion / removal device of channel coil seven can disconnect / connect the copper strip wire of channel coil seven 30113. At the intersection of the copper strip wires of channel coil two 30116 and channel coil three 30213, insertion / removal devices for channel coil two and channel coil three are respectively installed on the copper strip wires of channel coil two 30116 and channel coil three 30213. The insertion / removal device for channel coil two can disconnect / connect the copper strip wire of channel coil two 30116. The three-way plug-in device of the channel coil can disconnect / connect the copper strip wire of the channel coil 30213; the inductor plug-in device A is set between the three-way de-inductance capacitor 30105 and the four-way de-inductance capacitor 30209, which can disconnect / connect the three-way de-inductance capacitor 30105 and the four-way de-inductance capacitor 30209; the inductor plug-in device B is set between the eight-way de-inductance capacitor 30205 and the nine-way de-inductance capacitor 30112, which can disconnect / connect the eight-way de-inductance capacitor 30205 and the nine-way de-inductance capacitor 30112; thus, the head coil 3 is... It is divided into two parts: an upper shell head coil 301 and a lower shell head coil 302. The upper shell head coil 301 includes channel coil one, channel coil two, channel coil eight, channel coil seven and de-inductance capacitor three and de-inductance capacitor two connected thereto; the lower shell head coil 302 includes channel coil three, channel coil four, channel coil five, channel coil six and de-inductance capacitor four and de-inductance capacitor five connected thereto. The upper shell head coil 301 is set inside the upper shell 1 of the coil, and the lower shell head coil 302 is set inside the lower shell 2 of the coil.

[0047] The aforementioned channel coil six insertion / removal device includes a channel coil six contact A30202a disposed on the copper strip wire of channel coil six 30210 on the side overlapping with channel coil seven 30113, and a channel coil six contact B30202b disposed on the copper strip wire of channel coil six 30210 on the other side; the channel coil seven insertion / removal device includes a channel coil seven contact B30102b disposed on the copper strip wire of channel coil seven 30113 on the side overlapping with channel coil six 30210, and a channel coil seven contact A30102a disposed on the copper strip wire of channel coil seven 30113 on the other side; the channel coil two insertion / removal device includes a channel coil two contact B30101b disposed on the copper strip wire of channel coil two 30116 on the side overlapping with channel coil three 30213, and a channel coil six contact A30202b disposed on the other side. The channel coil 2 contact A30101a is located on the copper wire of the channel coil 2 30116; the channel coil 3 plug-in device includes a channel coil 3 contact A30201a located on the copper wire of the channel coil 3 30213 on the side overlapping with the channel coil 2 30116 and a channel coil 3 contact B30201b located on the copper wire of the channel coil 3 30213 on the other side; the inductor plug-in device A includes an upper contact 30103 connected to the de-inductance capacitor 30105 and a lower contact 30203 connected to the de-inductance capacitor 40209; the inductor plug-in device B includes an upper contact 30104 connected to the de-inductance capacitor 90112 and a lower contact 30204 connected to the de-inductance capacitor 80205.

[0048] Furthermore, the second contact A30101a of the channel coil, the third contact A30201a of the channel coil, the upper contact 30103 of the inductor plug-in device A, the upper contact 30104 of the inductor plug-in device B, the seventh contact A30102a of the channel coil, and the sixth contact A30202a of the channel coil are all located on the bottom surface of the upper shell sidewall 104; the second contact B30101b of the channel coil, the third contact B30201b of the channel coil, the lower contact 30203 of the inductor plug-in device A, the lower contact 30204 of the inductor plug-in device B, the seventh contact B30102b of the channel coil, and the sixth contact B30202b of the channel coil are all located on the top surface of the lower shell sidewall 201. When the upper coil shell 1 covers the lower coil shell 2, the second contact A30101a and the second contact B30101b of the channel coil are in contact and conducting, the third contact A30201a and the third contact B30201b of the channel coil are in contact and conducting, the upper contact 30103 and the lower contact 30203 of the inductor plug-in device A are in contact and conducting, the upper contact 30104 and the lower contact 30204 of the inductor plug-in device B are in contact and conducting, the seventh contact A30102a and the seventh contact B30102b of the channel coil are in contact and conducting, and the sixth contact A30202a and the sixth contact B30202b of the channel coil are in contact and conducting.

[0049] The existing head coil and the head coil 3 of the present invention are respectively installed in the upper coil shell 1 and the lower coil shell 2 of Embodiment 2, wherein the maximum width d of the breathing hole 101 is 100mm. The signal quantity of the channel coil is measured respectively, and the measurement data is as follows:

[0050]

[0051] As can be seen from the above data, the signal quantity of the head coil of the present invention is significantly improved in each channel coil compared with the head coil of the prior art.

[0052] The present invention also provides four embodiments of the upper shell neck coil, such as... Figure 7 As shown, it specifically includes three channel coils; the three channel coils are channel coil nine 401, channel coil ten 402 and channel coil eleven 403; channel coil ten 402 and channel coil eleven 403 partially overlap; channel coil nine 401 also partially overlaps with channel coil ten 402 and channel coil eleven 403.

[0053] At the same time, such as Figure 8As shown, the lower shell neck coil 5 includes channel coils; the five channel coils are channel coil 12 501, channel coil 13 502, channel coil 14 503, channel coil 15 504 and channel coil 16 505; channel coil 15 504 partially overlaps with channel coil 12 501, channel coil 14 503 and channel coil 16 505; channel coil 13 502 partially overlaps with channel coil 12 501, channel coil 14 503, channel coil 15 504 and channel coil 16 505; and channel coil 12 501 partially overlaps with channel coil 14 503 and channel coil 16 505.

[0054] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A device for using a head and neck coil device for foot and ankle scanning, comprising a head and neck coil device for magnetic resonance imaging of the head and neck, characterized in that: It also includes a bracket (6) for placing the feet; the bracket (6) and the head and neck coil device are detachably connected; the bracket (6) includes a placement part (602) and a limiting part (601) and a supporting part (603) respectively disposed on the placement part (602); the head and neck coil device includes an upper coil shell (1) and a lower coil shell (2); the upper coil shell (1) and the lower coil shell (2) are detachably connected; the upper coil shell (1) is composed of an upper shell top wall (103), an upper shell side wall (104) and an upper shell neck (105); the lower coil shell (2) is composed of a lower shell... The shell consists of a side wall (201), a bottom wall (202), and a neck (203); a head coil (3) is provided inside the top wall (103), side wall (104), side wall (201), and bottom wall (202); an upper shell neck coil (4) is provided inside the neck (105); a lower shell neck coil (5) is provided inside the neck (203); a breathing hole (101) is provided on the top wall (103); the breathing hole (101) is located in the center of the top wall (103), and its maximum width d ≤ 140mm; the maximum width d of the breathing hole (101) ≥ 100mm; The head coil (3) includes eight channel coils, each surrounded by copper wire, and thirteen de-inductance capacitors; The eight channel coils are channel coil one (30115), channel coil two (30116), channel coil three (30213), channel coil four (30212), channel coil five (30211), channel coil six (30210), channel coil seven (30113), and channel coil eight (30114); The thirteen de-inductance capacitors are de-inductance capacitor one (30107), de-inductance capacitor two (30106), de-inductance capacitor three (30105), de-inductance capacitor four (30209), de-inductance capacitor five (30208), de-inductance capacitor six (30207), de-inductance capacitor seven (30206), de-inductance capacitor eight (30205), de-inductance capacitor nine (30107), de-inductance capacitor nine ... 112), de-inductance capacitor 10 (30111), de-inductance capacitor 11 (30110), de-inductance capacitor 12 (30109) and de-inductance capacitor 13 (30108); the copper wire of channel coil 1 (30115) is sequentially connected to de-inductance capacitor 12 (30109), de-inductance capacitor 13 (30108), de-inductance capacitor 2 (30106) and de-inductance capacitor 3 (30105); the copper wire of channel coil 2 (30116) is sequentially connected to de-inductance capacitor 1 (30107), de-inductance capacitor 2 (30106), de-inductance capacitor 4 (30209) and de-inductance capacitor 5 (30208); the copper wire of channel coil 3 (30213) is sequentially connected to de-inductance capacitor 3 (30105), de-inductance capacitor 4 (30209) and de-inductance capacitor 6 (30207);The copper wire of channel coil four (30115) is sequentially connected to de-inductance capacitor five (30208), de-inductance capacitor four (30209), de-inductance capacitor two (30106), de-inductance capacitor thirteen (30108), de-inductance capacitor eleven (30110), de-inductance capacitor nine (30112), and de-inductance capacitor seven (30206); the copper wire of channel coil five (30211) is sequentially connected to de-inductance capacitor six (30207), de-inductance capacitor four (30209), de-inductance capacitor two (30106), de-inductance capacitor thirteen (30108), de-inductance capacitor eleven (30110), de-inductance capacitor nine (30112), and de-inductance capacitor eight (30205); the... The copper wire of channel coil six (30210) is sequentially connected to de-inductance capacitors seven (30206), nine (30112), and ten (30111); the copper wire of channel coil seven (30113) is sequentially connected to de-inductance capacitors eight (30205), nine (30112), eleven (30110), and twelve (30109); the copper wire of channel coil eight (30114) is sequentially connected to de-inductance capacitors ten (30111), eleven (30110), thirteen (30108), and one (30107); the eight channel coils partially overlap each other.

2. The device for scanning the foot and ankle using a head and neck coil as described in claim 1, characterized in that: A strap is provided on the placement part (602) to fix the patient's foot.

3. The device for using a head and neck coil for foot and ankle scanning according to claim 1, characterized in that: At least one vent (102) is provided on the top wall (103) of the upper shell to the left and / or right of the breathing hole (101).

4. The device for using a head and neck coil for foot and ankle scanning according to claim 3, characterized in that: Cable guide grooves (204) are respectively provided on the left and right ends of the lower shell sidewall (201).

5. The device for using a head and neck coil for foot and ankle scanning according to claim 4, characterized in that: The placement part (602) is placed on the bottom side of the inner wall (205) of the lower coil shell (2); the limiting part (601) is placed in the cable guide groove (204); the support part (603) is in contact with the rear side of the inner wall (205) of the lower coil shell (2).

6. The device for using a head and neck coil for foot and ankle scanning according to claim 5, characterized in that: At the intersection of the copper wires of channel coil six (30210) and channel coil seven (30113), respectively, a channel coil six plug-in device and a channel coil seven plug-in device are provided on the copper wires of channel coil six (30210) and channel coil seven (30113). The channel coil six plug-in device can disconnect / connect the copper wires of channel coil six (30210), and the channel coil seven plug-in device can disconnect / connect the copper wires of channel coil seven (30113). At the intersection of the copper wires of channel coil two (30116) and channel coil three (30213), the copper wires of channel coil two (30116) and channel coil three (30213) are provided on the copper wires of channel coil six (30210) and channel coil seven (30113). A channel coil two plug-in device and a channel coil three plug-in device are respectively provided on the copper strip conductors. The channel coil two plug-in device can disconnect / connect the copper strip conductors of channel coil two (30116), and the channel coil three plug-in device can disconnect / connect the copper strip conductors of channel coil three (30213). An inductor plug-in device A is provided between the de-inductance capacitor three (30105) and the de-inductance capacitor four (30209), which can disconnect / connect the de-inductance capacitor three (30105) and the de-inductance capacitor four (30209). An inductor plug-in device B is provided between the de-inductance capacitor eight (30205) and the de-inductance capacitor nine (30112), which can disconnect / connect the de-inductance capacitor eight (30205) and the de-inductance capacitor nine (30112).

7. The device for using a head and neck coil for foot and ankle scanning according to claim 6, characterized in that: The channel coil six plug-in device includes a channel coil six contact A (30202a) disposed on the copper strip wire of channel coil six (30210) on the side overlapping with channel coil seven (30113) and a channel coil six contact B (30202b) disposed on the copper strip wire of channel coil six (30210) on the other side; the channel coil seven plug-in device includes a channel coil seven contact B (30102b) disposed on the copper strip wire of channel coil seven (30113) on the side overlapping with channel coil six (30210) and a channel coil seven contact A (30102a) disposed on the copper strip wire of channel coil seven (30113) on the other side; the channel coil two plug-in device includes a channel coil two contact B (30101b) disposed on the copper strip wire of channel coil two (30116) on the side overlapping with channel coil three (30213) and a channel coil seven contact A (30102a) disposed on the other side. The channel coil two contact A (30101a) is located on the copper strip conductor of the second coil (30116); the channel coil three plug-in device includes a channel coil three contact A (30201a) located on the copper strip conductor of the third coil (30213) on the side overlapping with the second coil (30116), and a channel coil three contact B (30201b) located on the copper strip conductor of the third coil (30213) on the other side; the inductor plug The inductor plugging device A includes an upper contact (30103) of the inductor plugging device A connected to the third de-inductor capacitor (30105) and a lower contact (30203) of the inductor plugging device A connected to the fourth de-inductor capacitor (30209); the inductor plugging device B includes an upper contact (30104) of the inductor plugging device B connected to the ninth de-inductor capacitor (30112) and a lower contact (30204) of the inductor plugging device B connected to the eighth de-inductor capacitor (30205).

8. The device for using a head and neck coil for foot and ankle scanning according to claim 7, characterized in that: The channel coil second contact A (30101a), channel coil third contact A (30201a), inductor plug-in device A upper contact (30103), inductor plug-in device B upper contact (30104), channel coil seventh contact A (30102a), and channel coil sixth contact A (30202a) are all located on the bottom surface of the upper shell sidewall (104); the channel coil second contact B (30101b), channel coil third contact B (30201b), inductor plug-in device A lower contact (30203), inductor plug-in device B lower contact (30204), channel coil seventh contact B (30102b), and channel coil sixth contact B (30202b) are all located on the top surface of the lower shell sidewall (201).

9. A device for using a head and neck coil for foot and ankle scanning according to any one of claims 6 to 8, characterized in that: The upper shell neck coil (4) includes three channel coils; the three channel coils are channel coil nine (401), channel coil ten (402) and channel coil eleven (403); channel coil ten (402) and channel coil eleven (403) partially overlap; channel coil nine (401) also partially overlaps with channel coil ten (402) and channel coil eleven (403).

10. The device for using a head and neck coil for foot and ankle scanning according to claim 9, characterized in that: The lower shell neck coil (5) includes five channel coils; the five channel coils are channel coil twelve (501), channel coil thirteen (502), channel coil fourteen (503), channel coil fifteen (504) and channel coil sixteen (505); channel coil fifteen (504) partially overlaps with channel coil twelve (501), channel coil fourteen (503) and channel coil sixteen (505); channel coil thirteen (502) partially overlaps with channel coil twelve (501), channel coil fourteen (503), channel coil fifteen (504) and channel coil sixteen (505); channel coil twelve (501) partially overlaps with channel coil fourteen (503) and channel coil sixteen (505).

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