Neck supporting device for assisting head treatment in MR

Abstract

The invention discloses a neck support device for assisting head treatment in MR, which comprises a suspension neck support, an inflatable neck support and a fixing frame assembly, the inflatable neck support is connected with the suspension neck support, the suspension neck support is connected with the fixing frame assembly, the fixing frame assembly is used for fixing the head of a patient, the suspension neck support is used for providing a support platform for an air cushion, and the air cushion is used for supporting the head of the patient. The inflatable neck support is arranged on the neck of a patient and supports the neck to achieve the comfort effect. The neck supporting device for assisting head treatment in MR is suitable for various interventional treatments and long-time image scanning in a magnetic resonance environment, has good magnetic resonance compatibility, ensures stable work in a high-intensity magnetic field environment, has high adjustability and comfort so as to meet individual requirements of different patients, and is suitable for popularization and application. And quick mounting and dismounting are facilitated, narrow equipment space is adapted, and the convenience and efficiency of overall operation are improved.

Description

Technical Field

[0001] The invention relates to the field of magnetic resonance imaging equipment, and in particular to a neck supporting device for assisting head treatment in MR. Background Art

[0002] Magnetic Resonance Imaging (MRI) is a non-invasive, high-resolution medical imaging technology that is widely used in clinical diagnosis and various treatment processes due to its excellent soft tissue contrast and multi-directional imaging capabilities. In recent years, with the rapid development of interventional treatment technologies guided by MRI (such as MRI-guided radiotherapy, MRI-guided surgery, and MRI-guided high-intensity focused ultrasound, MRIgHIFU for short), these technologies combine the real-time imaging advantages of MRI to provide accurate, effective and reusable solutions for the treatment of complex diseases, significantly improving the treatment effect and reducing the patient's trauma and recovery time.

[0003] In actual clinical applications, MRI-guided interventional treatments and long-term imaging scans usually require patients to maintain a static posture for a long time in a small MRI device to ensure image clarity and treatment accuracy. However, a long-term fixed posture puts a heavy burden on the patient's neck and head, causing discomfort, pain, and even muscle fatigue, which seriously affects the patient's cooperation and overall diagnosis and treatment experience.

[0004] Existing neck support methods mostly use simple sponge pads, disposable materials or fixed support devices. These methods have the following main problems:

[0005] 1. Unstable support: Traditional sponge pads are difficult to effectively combine with the fixation frame and cranial pin system, and are prone to displacement during treatment, affecting the accuracy and safety of treatment.

[0006] 2. Difficulty in adjustment: Due to the large differences in the size and shape of patients' necks, existing support methods are difficult to provide personalized adjustment and cannot meet the needs of different patients for comfort and support strength.

[0007] 3. Insufficient comfort: During long-term treatment, traditional support methods often cannot provide sufficient comfort, causing patients to experience neck fatigue, tenderness, and even nerve discomfort, affecting the treatment experience.

[0008] 4. Material incompatibility: Some traditional support materials may be disturbed in a strong magnetic field environment, affecting the normal operation of the MRI equipment and even posing safety hazards, such as material magnetization causing equipment damage or magnetic attraction damage to patients. Summary of the invention

[0009] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is the existing neck support in the magnetic resonance environment, such as unstable support, difficult adjustment, insufficient comfort and material incompatibility. The present invention provides a neck support device for assisting head treatment in MR, which is suitable for various interventional treatments and long-term image scanning in the magnetic resonance environment. It not only has good magnetic resonance compatibility to ensure stable operation in a strong magnetic field environment, but also has a high degree of adjustability and comfort to meet the individual needs of different patients, and is easy to install and disassemble quickly, adapts to the narrow equipment space, and improves the convenience and efficiency of the overall operation.

[0010] To achieve the above-mentioned purpose, the present invention provides a neck support device for assisting head treatment in MR, comprising a suspension neck brace, an inflatable neck brace and a fixing frame assembly, the inflatable neck brace is connected to the suspension neck brace, the suspension neck brace is connected to the fixing frame assembly, the fixing frame assembly is used to fix the patient's head, the suspension neck brace is used to provide a support platform for the air cushion, and the inflatable neck brace is placed on the patient's neck to support the neck for comfort.

[0011] Furthermore, the suspension neck support comprises a suspension neck support notch and a neck conformal curved surface, and the suspension neck support notch is arranged on both sides of the neck conformal curved surface.

[0012] Furthermore, the inflatable neck brace includes a double-layer air cushion, an air tube, a handheld air bag and a one-way valve. The handheld air bag is connected to the double-layer air cushion through the air tube, and the one-way valve is arranged on a side of the air tube close to the handheld air bag.

[0013] Furthermore, the neck conformal surface of the suspension neck collar includes a tracheal through hole, a double-layer air cushion is arranged on the inner side of the neck conformal surface, and the trachea passes through the tracheal through hole, so that the handheld airbag inflates the double-layer air cushion on the outer side of the suspension neck collar.

[0014] Furthermore, the double-layer air cushion is connected to the neck-conforming curved surface of the suspension neck support by Velcro bonding.

[0015] Furthermore, the fixing frame assembly includes a base, a fixing frame, a neck guide rod, a telescopic rod and a skull pin. The fixing frame is connected to the base through a positioning pin. Two neck guide rods are provided and arranged at the bottom of the fixing frame. The telescopic rod is provided at the top of the fixing frame and is slidably connected to the fixing frame. The skull pin is provided at the top of the telescopic rod and the neck guide rod.

[0016] Further, the suspension neck support cooperates with the neck guide rod through the suspension neck support notch.

[0017] Furthermore, the suspension neck support slot includes a fixing threaded hole. The suspension neck support is first matched with the neck guide rod through the suspension neck support slot, adjusted to a suitable position, and fixed to the neck guide rod through the fixing threaded hole to ensure stability.

[0018] Furthermore, the double-layer air cushion includes an upper air cushion, a lower air inlet, a lower air cushion, an upper air inlet and a middle partition, the middle partition is arranged between the upper air cushion and the lower air cushion, the lower air inlet is arranged at the lower part of the lower air cushion, and the upper air inlet is arranged on the middle partition.

[0019] Furthermore, the total opening area of ​​the upper air inlet accounts for 30% to 50% of the area of ​​the partition.

[0020] Technical Effects

[0021] The neck support device for assisting head treatment in MR provided by the present invention has the following advantages:

[0022] 1. High stability: The suspension neck brace is firmly connected to the fixing frame assembly. The fixing frame assembly is precisely matched with the telescopic rod through the suspension neck brace slot, combined with the skull pin to fix the patient's head, ensuring the stability of the device during treatment and avoiding any displacement affecting the treatment accuracy.

[0023] 2. Strong adjustability: The inflatable neck cushion design allows air pressure adjustment through a handheld airbag, achieving continuous adjustment of height and support strength to adapt to the neck shape and comfort needs of different patients, while preventing gas leakage to ensure the stability and durability of support strength. Through the combined design of the telescopic rod and the inflatable neck cushion, the neck support height and support strength can be continuously adjusted to meet the personalized requirements of different patients and different treatment needs.

[0024] 3. Superior comfort: The double-layer air cushion structure and the neck conformal curved surface design provide uniform support force distribution, reduce local pressure points, improve patient comfort, and relieve discomfort caused by long-term fixed posture. The inflatable neck cushion adopts a double-layer air cushion structure, and the air pressure is precisely adjusted through the independent air inlets and trachea of ​​the upper and lower layers, providing more uniform and comfortable support to adapt to the neck shape and support needs of different patients.

[0025] 4. Magnetic resonance compatibility: The use of high magnetic resonance compatibility materials such as PEEK (suspension neck collar) and TPU (air cushion) ensures that the device will not cause interference in a strong magnetic field environment, avoid affecting the normal operation of the MRI equipment, and ensure the safety of patients.

[0026] 5. Convenient operation: The modular design makes the device easy to install and disassemble quickly. The suspension neck support, inflatable neck pad and fixed frame components adopt modular design, which is convenient for quick installation and disassembly, adapting to different clinical needs and narrow equipment space, and improving the convenience and efficiency of operation.

[0027] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of a neck support device for assisting head treatment in MR according to a preferred embodiment of the present invention;

[0029] Figure 2 is a side view schematic diagram of a neck support device for assisting head treatment in MR according to a preferred embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of a suspension neck support and an inflatable neck cushion of a neck support device for assisting head treatment in MR according to a preferred embodiment of the present invention;

[0031] Figure 4 It is a schematic diagram of a suspension neck support and an inflatable neck cushion of a neck support device for assisting head treatment in MR according to a preferred embodiment of the present invention;

[0032] Figure 5 is a schematic diagram of a suspension neck collar of a neck support device for assisting head treatment in MR according to a preferred embodiment of the present invention;

[0033] Figure 6 It is a cross-sectional view of a double-layer air cushion of a neck support device for assisting head treatment in MR according to a preferred embodiment of the present invention;

[0034] Figure 6-1 is a cross-sectional view of a double-layer air cushion of a neck support device for assisting head treatment in MR according to another preferred embodiment of the present invention;

[0035] Figure 7 It is a side view of a telescopic rod of a neck support device for assisting head treatment in MR according to a preferred embodiment of the present invention;

[0036] Figure 8 It is a rear view of a telescopic rod of a neck support device for assisting head treatment in MR according to a preferred embodiment of the present invention;

[0037] Fig. 9 It is a rear view of a neck guide rod of a neck support device for assisting head treatment in MR according to a preferred embodiment of the present invention;

[0038] Fig.10 The figure is a rear view of a neck guide rod of a neck support device for assisting head treatment in MR according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] In the following description, specific details such as specific internal procedures and techniques are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0041] like Figure 1-10 As shown, the present invention provides a neck support device for assisting head treatment in MR, including a suspension neck brace 100, an inflatable neck brace 200 and a fixing frame assembly 300, wherein the inflatable neck brace 200 is connected to the suspension neck brace 100, the suspension neck brace 100 is connected to the fixing frame assembly 300, the fixing frame assembly 300 is used to fix the patient's head, the suspension neck brace 100 is used to provide a support platform for the inflatable neck brace 200, and the inflatable neck brace 200 is placed on the patient's neck to support the neck for comfort.

[0042] The suspension neck brace 100 includes a suspension neck brace notch 102 and a neck conformal curved surface 103, and the suspension neck brace notch 102 is arranged on both sides of the neck conformal curved surface 103. The neck conformal curved surface 103 is arc-shaped. When the patient wears the fixing frame 301 and the fixing frame 301 is installed on the base, the suspension neck brace 100 can avoid interference between the wearing operation and the installation process. By adjusting the position of the neck guide rod, the support points required for different neck lengths can be adapted, and quick installation and disassembly can be achieved.

[0043] The inflatable cervical collar 200 includes a double-layer air cushion 201, an air tube 202, a handheld air bag 203 and a one-way valve 204. The handheld air bag 203 is connected to the double-layer air cushion 201 through the air tube 202. The one-way valve 204 is arranged on a side of the air tube close to the handheld air bag, and the one-way valve is used for deflation.

[0044] The neck conformable surface 103 of the suspension neck collar 100 includes an airway through hole 104, a double-layer air cushion 201 is arranged inside the neck conformable surface 103, and an airway 202 passes through the airway through hole 104, so that the hand-held airbag 203 inflates the double-layer air cushion outside the suspension neck collar. The double-layer air cushion 201 is connected to the neck conformable surface 103 of the suspension neck collar 100 by Velcro.

[0045] The double-layer air cushion 201 includes a lower air cushion 2011, a lower air inlet 2012, an upper air cushion 2013, an upper air inlet 2014 and a middle partition 2015. The bottom of the lower air cushion 2011 is arc-shaped, which matches the arc surface of the neck conformable surface 103. The top of the upper air cushion 2013 is also arc-shaped, which matches the curvature of the human neck. The upper air inlet is arranged on the middle partition 2015 of the upper air cushion 2013. The lower air inlet 2012 is arranged at the bottom of the lower air cushion. The middle partition 2015 is arranged between the upper air cushion and the lower air cushion to increase the stability of the overall structure of the air cushion. The middle partition is made of reinforced TPU material. The upper air inlet is relatively large, and the total opening area accounts for 30% to 50% of the partition area, so as to realize the uniform flow distribution of the lower gas to the upper gas; and the openings are evenly distributed, so as to realize the uniform load-bearing during the inflation process. The openings of the middle partition are consistent with the openings of the upper air inlet. In another preferred embodiment of the present invention, the upper air inlet can also be designed as a honeycomb type opening form under the premise of ensuring the total opening area and the uniform distribution of the openings, such as Figure 6-1 shown.

[0046] The diameter of the lower air inlet is equal to the diameter of the trachea. The small air intake ensures that during the inflation process, the air cushion will not suddenly lift the head upward due to excessive air intake, which will cause excessive pressure on the skull pins and cause damage. Since the opening area of ​​the upper air inlet is large enough, the upper and lower air cushions are in and out of air synchronously during the inflation and deflation process. When in use, the inflation volume needs to be judged and controlled by the patient's body sense, and needs to be determined in real time with the doctor.

[0047] The fixing frame assembly 300 includes a base 305, a fixing frame 301, a neck guide rod 309, a telescopic rod 302 and a skull pin 303. The fixing frame 301 is connected to the base 305 through a positioning pin 306. Two neck guide rods 309 are provided and arranged at the bottom of the fixing frame 301. The telescopic rod 302 is provided at the top of the fixing frame and is slidably connected to the fixing frame 301. The skull pin 303 is provided at the top of the telescopic rod 302; wherein the top of the telescopic rod 302 is arc-shaped. The neck guide rod 309 includes a skull pin mounting hole 1 3091, a neck guide rod slide rail 3092, a neck guide rod scale 3093 and a neck guide rod slide groove 3094, wherein the cross section of the neck guide rod is convex, the neck guide rod slide groove is provided in the middle of the neck guide rod and is provided in the form of a through hole, the neck guide rod scale is provided at the upper part of the neck guide rod, and the neck guide rod slide rail is provided at the lower part of the neck guide rod and has a width smaller than the upper part of the neck guide rod. The suspension neck support slot 102 and the neck guide rod slide rail 3092 are connected by slide grooves and screwed. The neck guide rod slide rail 3092 is connected by the slot of the fixing frame 301. The neck guide rod slide groove 3094 can be embedded with a slider nut, and the fixing frame 301 is connected to the neck guide rod 309 by screws. Among them, the neck guide rod is frame-shaped and has an arc shape as a whole, which matches the neck conformal surface of the suspension neck support. In the embodiment of the present invention, the skull pin installed on the neck guide rod 309 plays a supporting role on the back of the patient's head.

[0048] The base 305 is configured to have a rectangular bottom, and two columns are vertically arranged on both sides of the rectangular body to form a base bracket. Two notches are arranged at the top of the two columns of the base for fixing the fixing frame. The fixing frame 301 is a hexagonal shape with a disconnected top and an arc-shaped bottom. Fixed blocks are arranged on both sides of the fixing frame. The fixed blocks are provided with positioning pin guide grooves and threaded holes. The fixing frame is clamped on the positioning pin 306 of the notch of the base column through the fixing block, and the upper notch of the base and the fixing block of the fixing frame are connected by hand-tightening bolts; through holes are opened in the middle of the columns on both sides of the base, and threaded holes are also opened on both sides of the fixing frame. The columns and the fixing frame are connected by hand-tightening bolts to ensure the stability of the device when in use. Among them, the positioning pin 306 uses a non-magnetic positioning pin.

[0049] The neck guide rod 309 is matched with the notch of the fixing frame 301, and the suspension neck support 100 is matched with the neck guide rod 309 through the suspension neck support notch 102. The suspension neck support notch 102 includes a fixing threaded hole 101. The suspension neck support is first matched with the neck guide rod through the suspension neck support notch, adjusted to a suitable position, and fixed to the neck guide rod through the fixing threaded hole to ensure stability. The suspension neck support 100 is coupled to the neck guide rod 309 through a neck guide rod slide groove that can adjust the position. By adjusting the position of the neck guide rod, the support points required for different neck lengths can be adapted.

[0050] Slide rails are provided on both sides of the telescopic rod 302 that cooperate with the fixing frame, and fixed holes are provided at the corresponding positions of the fixing frame. When in use, after the skull pin 303 on the top of the telescopic rod 302 is extended to the appropriate position of the patient's head, a T-shaped slider nut is embedded in the telescopic rod slide groove 3025, and after adjusting it to align with the fixed hole position set in the fixing frame, the telescopic rod is fixed by screws. After positioning, the skull pin is used to assist in fixing the patient's head. Among them, the telescopic rod 302 includes a skull pin mounting hole 2 3021, a skull pin mounting hole 3 3022, a telescopic rod slide rail 3023, a telescopic rod scale 3024 and a telescopic rod slide groove 3025. The skull pin mounting hole 2 3021 and the skull pin mounting hole 3 3022 are two pairs of skull pin mounting holes with different spacings, which are used to adapt to patients with different skull widths. The telescopic rod slide rail 3023 cooperates with the notch of the fixing frame 301 to form a slide rail notch; the telescopic rod scale 3024 is used to read and adjust the telescopic displacement of the telescopic rod 302; the telescopic rod slide groove is used to install the slider nut, which is connected through the fixing hole on the fixing frame 301 to fix the telescopic rod 302.

[0051] In the embodiment of the present invention, the fixing frame assembly is made of titanium alloy material, which itself has magnetic compatibility characteristics, and uses high magnetic resonance compatibility materials such as PEEK (suspension neck brace) and TPU (air cushion) to ensure that the device will not cause interference in a strong magnetic field environment, avoid affecting the normal operation of the MRI equipment, and ensure the safety of the patient.

[0052] The following specifically describes the use of a neck support device for assisting head treatment in MR provided by the present invention:

[0053] 1. Installation of the base of the fixed frame assembly

[0054] Select the installation location: Determine the location on the treatment bed or MRI device that is suitable for mounting the base 305, ensuring that it does not affect the normal operation of the device and the comfort of the patient. Secure the base 305 firmly in the selected location, using appropriate tools (such as MRI-compatible screwdrivers and wrenches) to ensure that the base is firmly installed to avoid displacement during treatment. Install the neck guide rod and telescopic rod, mount them on the fixed frame, and adjust the length.

[0055] 2. Connect the suspension neck brace. Connect the suspension neck brace notch: assemble the suspension neck brace notch 102 of the suspension neck brace 100 with the neck guide rod 309 through the notch fit; the suspension neck brace 100 is fastened to the neck guide rod 309 through the fastening threaded hole 101 to ensure its stability during treatment.

[0056] 3. Install the inflatable neck brace. Fix the double-layer air cushion: fix the double-layer air cushion 201 of the inflatable neck cushion 200 to the neck conformable curved surface 103 of the suspension neck brace 100 through Velcro, and ensure that the air cushion evenly covers the patient's neck area. Check the bonding firmness: confirm that the bonding between the air cushion 201 and the suspension neck brace 100 is firm and not loose. Ensure that the connection is tight and leak-free, and ensure that the one-way valve 204 functions properly to prevent gas backflow.

[0057] 4. Install the patient's head fixation device. Prepare the patient: Before treatment, the patient sits on the chair and adjusts his position so that the head is directly under the fixation frame assembly, and the patient wears the fixation frame.

[0058] 5. Connect the skull pin: put the telescopic rod 302 into the fixing frame 301, align the skull pin 303 with the appropriate position of the patient's head 304, and gently fix the patient's head on the telescopic rod 302 to ensure that the skull pin is firmly connected to the head without causing discomfort, and to ensure that the head remains stable and does not move during the treatment process. The wearing process requires the patient to sit down to operate.

[0059] 6. Final adjustment. The patient lies down, the fixing frame 301 is aligned with the positioning hole on the base 305 and positioned by the positioning pin 306, and fixed to the base 305 by the fixing nut 307. Check the connection points of the fixing frame assembly 300, the suspension neck support 100 and the inflatable neck cushion 200 one by one to ensure that all components are firmly installed. Then inflate the air cushion, and the patient adjusts it according to the comfort level, and confirms with the doctor that the inflation is complete before starting treatment.

[0060] 7. Air pressure release after treatment: After treatment, the one-way valve 204 is operated to slowly release the air pressure, so that the air cushion 201 gradually softens and releases the support for the neck.

[0061] 8. Disassemble the device. Remove the connection between the fixing frame 301 and the base 305, and the patient stands up and sits on the chair. Release the skull pins and the patient is separated from the fixing frame. Release the connection between the telescopic rod 302 and the fixing frame 301. Disassemble the inflatable neck cushion 200 and remove it from the suspension neck collar 100 for easy storage or cleaning or disposal as a disposable consumable. Finally, ensure that all parts are safely removed and properly stored.

[0062] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A neck support device for assisting head treatment in MR, characterized in that: It includes a suspension neck brace, an inflatable neck brace and a fixing frame assembly, wherein the inflatable neck brace is connected to the suspension neck brace, which is connected to the fixing frame assembly, and the fixing frame assembly is used to fix the patient's head, and the suspension neck brace is used to provide a supporting platform for the air cushion, and the inflatable neck brace is placed on the patient's neck to support the neck and provide comfort.

2. A neck support device for assisting head treatment in MR as claimed in claim 1, characterized in that: The suspension neck support comprises a suspension neck support notch and a neck conformal curved surface, and the suspension neck support notch is arranged on both sides of the neck conformal curved surface.

3. A neck support device for assisting head treatment in MR as claimed in claim 2, characterized in that: The inflatable neck brace comprises a double-layer air cushion, an air tube, a handheld air bag and a one-way valve. The handheld air bag is connected to the double-layer air cushion through the air tube, and the one-way valve is arranged on a side of the air tube close to the handheld air bag.

4. A neck support device for assisting head treatment in MR as claimed in claim 3, characterized in that: The neck conformal surface of the suspension neck collar comprises an air pipe through hole, the double-layer air cushion is arranged on the inner side of the neck conformal surface, and the air pipe passes through the air pipe through hole, so that the handheld airbag inflates the double-layer air cushion on the outer side of the suspension neck collar.

5. A neck support device for assisting head treatment in MR as claimed in claim 4, characterized in that: The double-layer air cushion is connected to the neck-conforming curved surface of the suspension neck support by means of Velcro.

6. A neck support device for assisting head treatment in MR as claimed in claim 2, characterized in that: The fixing frame assembly includes a base, a fixing frame, a neck guide rod, a telescopic rod and a skull pin. The fixing frame is connected to the base via a positioning pin. Two neck guide rods are provided and arranged at the bottom of the fixing frame. The telescopic rod is provided at the top of the fixing frame and is slidably connected to the fixing frame. The skull pin is provided at the top of the telescopic rod and the neck guide rod.

7. A neck support device for assisting head treatment in MR as claimed in claim 6, characterized in that: The suspension neck support is matched with the neck guide rod through the suspension neck support notch.

8. The neck support device for assisting head treatment in MR as claimed in claim 6, characterized in that: The suspension neck bracket notch includes a fixing threaded hole. The suspension neck bracket is first matched with the neck guide rod through the suspension neck bracket notch, adjusted to a suitable position, and fixed to the neck guide rod through the fixing threaded hole to ensure stability.

9. The neck support device for assisting head treatment in MR as claimed in claim 5, characterized in that: The double-layer air cushion includes an upper air cushion, a lower air inlet, a lower air cushion, an upper air inlet and a middle partition, wherein the middle partition is arranged between the upper air cushion and the lower air cushion, the lower air inlet is arranged at the lower part of the lower air cushion, and the upper air inlet is arranged on the middle partition.

10. A neck support device for assisting head treatment in MR as claimed in claim 9, characterized in that: The total opening area of ​​the upper air inlet accounts for 30% to 50% of the area of ​​the partition plate.

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