Head and neck fixing device, magnetic resonance imaging equipment and use method

Abstract

The invention provides a head and neck fixing device, magnetic resonance imaging equipment and a using method, the magnetic resonance imaging equipment comprises an imaging main body and a detection bed, the imaging main body is provided with a detection channel, the detection bed is provided with a movable bed board, the bed board is arranged corresponding to the detection channel, and the bed board can enter and exit from the detection channel; a head and neck fixing device is mounted at one end of the bed board close to the detection channel; the head and neck fixing device comprises a pillow supporting mechanism and a head pressing mechanism; the pillow supporting mechanism is used for supporting the head and the neck of a patient, providing sunken supporting wrapping and blocking the two sides of the head; the head pressing mechanism is used for pressing and limiting the head of the patient; the head and the neck of a patient can be comprehensively supported, the number of suspended parts is reduced, the head and the neck are effectively prevented from loosening and shifting, and the examination comfort and accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the field of medical examination equipment, and more specifically, to a head and neck fixation device, a magnetic resonance imaging device and a use method thereof. Background Art

[0002] In the field of modern medicine, magnetic resonance imaging has become one of the routine examinations. In order to improve comfort, a fixator for the pillow head and neck is currently installed on the examination bed. Most of the current fixators adopt a simple headband structure. Although it can meet the needs of routine examination applications, it also has defects. For example, insufficient support points make it easy for the head and neck to have an overhead area, resulting in a lack of local force and poor comfort. It is also not suitable for different head shapes of patients. Moreover, since the magnetic resonance examination time is relatively long, the local position is prone to fatigue in the above situation, and the movement may be adjusted unconsciously, causing loosening and displacement, which affects the quality of the magnetic resonance image. Therefore, there is room for improvement. Summary of the invention

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a head and neck fixation device, a magnetic resonance imaging device and a method of use, which can provide more comprehensive support for the patient's head and neck, reduce the suspended parts, effectively prevent the head and neck from loosening and shifting, and improve the comfort and accuracy of the examination.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] The present invention provides a head and neck fixing device, comprising a pillow supporting mechanism and a head pressing mechanism; the pillow supporting mechanism is installed at the end of a bed board, and is used to support the patient's head and neck, provide a sunken support cover, and form a barrier on both sides of the head; the head pressing mechanism is used to provide compression and limitation for the patient's head.

[0006] In a preferred technical solution of the present invention, the pillow support mechanism includes a pillow pad, a support structure, and a locking structure; the support structure includes a plurality of retractable and movable support components, and the support components are distributed in a rectangular array to provide dense multi-point support; the movable parts of the support components extend above the top surface of the bed board, and the pillow pad cover is arranged on the top of the movable parts of all the support components; the locking structure is used to lock the support components so that the support components cannot continue to shrink and press downward.

[0007] In a preferred technical solution of the present invention, the support structure includes a first support plate, a second support plate, and a support assembly; the first support plate is located above the second support plate, and the first support plate and the second support plate are connected overhead by support frames on both sides; a plurality of first guide holes distributed in a dense rectangular array are provided on the first support plate, and a plurality of second guide holes are correspondingly provided on the second support plate; the support assembly includes a support rod, a support tube, and a spring, the bottom of the support rod is rotatably installed at the second guide hole, the support tube is sleeved on the support rod, the support tube is movably inserted in the first guide hole and only moves along the axial direction; the spring is sleeved on the outside of the support rod to provide an elastic force for the support tube to push upward; a guide column is installed on the top side wall of the support rod, and a slide groove for the guide column to slide on the inner wall of the support tube, the slide groove is a spiral structure, and the vertical movement of the support tube can drive the support rod to rotate; the locking structure is used to limit the rotation of the support rod, so that the support tube is maintained at a corresponding height; the support tubes are all located inside the pillow pad, and the top surface of the support tube provides support to the top of the pillow pad to maintain the shape of the pillow pad when not subjected to external force.

[0008] In a preferred technical solution of the present invention, the locking structure includes an electric push rod, a third support plate, and multiple universal sleeves; the electric push rod is installed in a support frame, and the piston rod of the electric push rod is arranged downward and extends to the bottom of the second support plate; the third support plate is mounted on the piston rod ends of multiple electric push rods, and the lifting and lowering activities are driven by the electric push rods; the top surface of the third support plate is provided with multiple card slots, the positions of the card slots correspond to the positions of the second guide holes, and the universal sleeves are clamped and installed in the card slots; a prismatic card block is fixedly provided at the bottom end of the support rod; when the universal sleeve is sleeved on the outside of the card block, the support rod is locked.

[0009] In a preferred technical solution of the present invention, locking assemblies are installed on the top surfaces of both ends of the third support plate, and first through holes are correspondingly provided at both ends of the second support plate; at least two spring latches are installed on the outer side of the bottom end of the first through hole; when the locking assembly rises to the first preset height position with the third support plate, the locking assembly and the spring latch form a locking connection; when the locking assembly continues to rise to the second preset height position with the third support plate, the locking assembly is unlocked and disengaged from the spring latch.

[0010] In a preferred technical solution of the present invention, the locking assembly includes a support seat, a support column, and a ring; the bottom of the support column is installed on the support seat, and a support block is fixedly provided on the top of the support column, and the support block is in a frustum-shaped structure; the ring is movably sleeved on the support column, and the bottom of the ring is in a conical structure that narrows downward; when the ring moves down to abut against the support seat, a gap sufficient for a lock tongue of a spring latch to extend is left between the ring and the support block; a convex ring that matches the lock tongue is provided on the top surface of the ring, and when the locking assembly continues to move upward, the ring can apply force compression to the lock tongue through the convex ring; a groove is provided on the bottom surface of the support block corresponding to the convex ring, and when the ring moves upward, the convex ring is retracted in the groove, and the top surface of the ring abuts against the bottom surface of the support block.

[0011] In a preferred technical solution of the present invention, the pillow includes a cover body made of soft rubber, the cover body has a rectangular structure, and brackets are fixedly provided at the bottom of both sides of the cover body along the width direction of the bed board; a support box is fixedly provided at one end of the bed board, the top of the support box is open, the pillow support mechanism is correspondingly installed at the support box, the pillow cover is arranged outside the open mouth of the support box, and the bracket is fixed to the top of the support box by bolts; two vertical plates are fixedly provided on the top surface of the first support plate corresponding to two brackets, and the bracket and the vertical plate are connected by bolts; the cover body is supported by the support assembly to maintain its original shape.

[0012] In a preferred technical solution of the present invention, the pressure head mechanism includes a linear slide, a push frame, a head cover, and an airbag; the linear slide is installed at the bottom of the support box, the push frame is installed on the slider of the linear slide, and the two opposite side walls of the support box are correspondingly provided with strip holes, and the strip holes extend along the length direction of the bed board; the two ends of the push frame extend to the strip holes, and the linear slide drives the push frame to slide along the strip holes; the head cover is arranged above the pillow, and the bottom of the two side plates of the head cover extends downward, and the two ends of the push frame are connected to the two side plates of the head cover by bolts; the top of the head cover is arched upward to form a head cover groove, and the airbag is fixed inside the head cover groove, and the side of the airbag close to the center of the bed board is an inclined structure, and it is inclined downward in the direction away from the bed board.

[0013] The present invention also provides a magnetic resonance imaging device, including an imaging body and a detection bed, the imaging body is provided with a detection channel, the detection bed is provided with a movable bed board, the bed board is arranged corresponding to the detection channel, and the bed board can enter and exit the detection channel; the above-mentioned head and neck fixing device is installed on the bed board.

[0014] The present invention also provides a method for using a magnetic resonance imaging device, comprising the following steps:

[0015] S1, the patient lies on the bed board, with the head and neck resting on the pillow support mechanism, and the head centered as far as possible relative to the head cover;

[0016] S2, adjust and start the head pressing mechanism, so that the head cover gradually moves forward to a suitable position, forming a downward pressing effect on the patient's head;

[0017] S3, after being pressed into place, the locking structure is adjusted to lock the support assembly so that the support assembly cannot be raised or lowered, thereby maintaining the shape of the bottom and surrounding areas of the patient's head and neck, thereby effectively blocking and limiting the surrounding areas of the head and neck, and preventing the position from being easily changed;

[0018] S4, start the imaging body and the detection bed to examine the patient;

[0019] S5, after the examination is completed, the imaging body returns to the standby state, the detection bed is also reset to the initial state, and the patient is transferred from the detection channel to the outside;

[0020] S6, adjusting and starting the head pressing mechanism to move the head cover backward and reset it, thereby releasing the pressing limit on the patient's head;

[0021] S7, adjusting the start locking structure to release the lock on the support assembly, so that the support assembly returns to the telescopic active state;

[0022] S8, the patient leaves the examination bed and the examination is completed.

[0023] The beneficial effects of the present invention are:

[0024] The present invention provides a head and neck fixing device, a magnetic resonance imaging device and a method of using the same. The head and neck fixing device is installed at one end of a bed board of a testing bed close to a testing channel. The head and neck fixing device comprises a pillow support mechanism and a pressure head mechanism. The pillow support mechanism is used to support the patient's head and neck, provide a sunken support cover, and form a barrier on both sides of the head. The sunken cover method adopted can be adapted to the head and neck shapes of different patients and changed accordingly, providing more comprehensive support for the patient's head and neck, reducing the suspended parts and improving the comfort of the examination. The pressure head mechanism is used to press the patient's head, and the bottom, top and both sides of the patient's head are limited, so as to effectively prevent the head and neck from loosening and shifting, and improve the accuracy of the examination. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the three-dimensional structure of a magnetic resonance imaging device in an inspection state provided in a specific embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of a three-dimensional structure of a magnetic resonance imaging device in a standby state provided in a specific embodiment of the present invention;

[0027] Figure 3 is a schematic diagram of a three-dimensional unfolded structure of a pillow support mechanism provided in a specific embodiment of the present invention from a first viewing angle;

[0028] Figure 4 is a schematic diagram of a three-dimensional unfolded structure of a pillow support mechanism provided in a specific embodiment of the present invention from a second viewing angle;

[0029] Figure 5 is a schematic diagram of a three-dimensional structure of a support structure provided in a specific embodiment of the present invention;

[0030] Figure 6 is a schematic diagram of a three-dimensional unfolded structure of a support structure provided in a specific embodiment of the present invention;

[0031] Figure 7 is a schematic diagram of the three-dimensional structure of a support assembly provided in a specific embodiment of the present invention;

[0032] Figure 8is a schematic diagram of a three-dimensional unfolded structure of a support assembly provided in a specific embodiment of the present invention;

[0033] Fig. 9 is a schematic diagram of the three-dimensional structure of a support cylinder provided in a specific embodiment of the present invention;

[0034] Fig.10 is a schematic diagram of the three-dimensional structure of a locking structure provided in a specific embodiment of the present invention;

[0035] Fig.11 is a schematic diagram of a three-dimensional unfolded structure of a locking assembly provided in a specific embodiment of the present invention from a first viewing angle;

[0036] Fig.12 is a schematic diagram of a three-dimensional unfolded structure of a locking assembly provided in a specific embodiment of the present invention from a second viewing angle;

[0037] Fig.13 is a schematic diagram of the three-dimensional structure of a pressing head mechanism provided in a specific embodiment of the present invention;

[0038] Fig.14 It is a schematic diagram of the three-dimensional structure of a bed board provided in a specific embodiment of the present invention.

[0039] In the figure:

[0040] 100, imaging subject; 200, detection bed; 210, bed board; 220, support box; 230, strip hole;

[0041] 300, head and neck fixation device;

[0042] 400, pillow support mechanism; 410, pillow pad; 411, cover body; 412, bracket; 420, support structure; 421, first support plate; 422, second support plate; 423, support frame; 424, first guide hole; 425, second guide hole; 426, first through hole; 427, vertical plate; 430, locking structure; 431, electric push rod; 432, third support plate; 433, universal sleeve;

[0043] 500, press head mechanism; 510, linear slide; 520, push frame; 530, head cover; 531, head cover slot; 540, air bag;

[0044] 600, support assembly; 610, support rod; 611, guide column; 612, block; 620, support cylinder; 621, slide groove; 630, spring;

[0045] 700, locking assembly; 710, supporting seat; 720, supporting column; 730, collar; 731, convex ring; 740, supporting block; 741, groove; 800, spring latch. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0047] like Figure 1 , Figure 2 As shown, a specific embodiment of the present invention discloses a magnetic resonance imaging device, including an imaging body 100 and a detection bed 200, wherein the imaging body is provided with a detection channel, and the detection bed 200 is provided with a movable bed board 210, which is arranged corresponding to the detection channel and can enter and exit the detection channel; a head and neck fixing device 300 is installed at one end of the bed board 210 close to the detection channel; the head and neck fixing device 300 includes a pillow support mechanism 400 and a pressure head mechanism 500; the pillow support mechanism 400 is used to support the patient's head and neck, provide a sunken support and cover, and form a barrier on both sides of the head; the pressure head mechanism 500 is used to provide a tight limit to the patient's head;

[0048] The above-mentioned magnetic resonance imaging device adopts a sunken covering method, which can be adapted to the head and neck shapes of different patients and changed accordingly, providing a more comprehensive support for the patient's head and neck, reducing the hanging parts, and improving the comfort of the examination; the pressure head mechanism is equipped to press the patient's head tightly, and the bottom, top and both sides of the patient's head are limited, effectively preventing the head and neck from loosening and shifting, and improving the accuracy of the examination;

[0049] It should be noted that the electrical components of the detection bed are connected to the imaging body, which is provided with an operation panel for manually controlling various adjustment actions; the imaging body is also electrically connected to the control console in the monitoring room to achieve remote control.

[0050] Furthermore, if Figures 3 to 6 As shown, the pillow support mechanism 400 includes a pillow pad 410, a support structure 420, and a locking structure 430; the support structure 420 includes a plurality of retractable and movable support components 600, which are distributed in a rectangular array to provide dense multi-point support; the locking structure 430 is used to lock the support component 600 so that the support component cannot continue to shrink and press down; through the structure of point support, the patient's head and neck are fully supported, and only the corresponding support component is compressed to adapt to different head shapes, forming a sinking and concave effect, while the other support components remain in their original state, forming a blockage on both sides of the head and neck; after the patient's head and neck pillow is in place, it is locked through the locking structure, so that the support components cannot be retracted and moved, and their corresponding positions are maintained, which not only effectively supports the corresponding position of the head and neck, but also effectively blocks both sides, at least in the bottom and both sides, the problem of loosening and offset will not easily occur;

[0051] The movable part of the support assembly 600 extends out above the top surface of the bed board 210, and the pillow pad 410 is covered on the top of the movable part of the entire support assembly 600; when not subject to external force, the pillow pad maintains a convex headrest shape, and the support assembly is covered and shielded by the pillow pad to maintain external integrity, prevent hair or scalp from contacting the support assembly, and avoid harm to the patient.

[0052] Furthermore, if Figure 6 As shown, the support structure 420 includes a first support plate 421, a second support plate 422, and a support assembly 600; the first support plate is located above the second support plate, and the first support plate 421 and the second support plate 422 are connected overhead by support frames 423 on both sides; the first support plate 421 is provided with a plurality of first guide holes 424 distributed in a dense rectangular array, and the second support plate 422 is correspondingly provided with a plurality of second guide holes 425; Figures 7 to 9 As shown, the support assembly 600 includes a support rod 610, a support tube 620, and a spring 630. The bottom of the support rod 610 is rotatably installed at the second guide hole 425, and the support tube 620 is sleeved on the support rod 610. The support tube 620 is movably inserted into the first guide hole 424 and moves only along the axial direction; the spring 630 is sleeved on the outside of the support rod 610 to provide an elastic force for the support tube 620 to push upward; a guide column 611 is installed on the top side wall of the support rod 610, and a slide groove 621 for the guide column 611 to slide on the inner wall of the support tube 620. The slide groove has a spiral structure, and the vertical movement of the support tube 620 can drive the support rod 610 to rotate; the locking structure 430 is used to limit the rotation of the support rod 610, so that the support tube 620 is maintained at a corresponding height; the support tube 620 is located inside the pillow pad 410, and the top surface of the support tube provides support for the top of the pillow pad to maintain the shape of the pillow pad when not subject to external force;

[0053] In the above-mentioned structural design, the second guide hole is a circular hole structure, a circular ring is fixedly provided on the bottom side wall of the support rod, a retaining spring is clamped on the support rod below the circular ring, and the spacing between the retaining spring and the circular ring is adapted to the thickness of the first support plate, so that the bottom of the support rod can be rotatably installed at the second guide hole; the first guide hole is a non-circular hole structure, and the outer wall shape of the support tube is adapted to the shape of the first guide hole, thereby limiting the support tube from rotating and only being able to move up and down along the first guide hole; conversely, when the support rod rotates, it can drive the support tube to move up and down, which means that when the support rod is locked and cannot rotate, the support tube can no longer rotate at this time and is maintained at the required height position;

[0054] Furthermore, a limit ring is fixedly provided on the bottom side wall of the support tube, and the diameter of the limit ring is larger than the maximum outer diameter of the first guide hole, which serves as a blocking component for the support tube to move up to the maximum distance, preventing the support tube from detaching from this position; and the limit ring can also expand the diameter of the bottom of the support tube so that the spring can cooperate, and the spring clamp is installed between the limit ring and the circular ring, and the spring is used to elastically support the support tube; a spacing is left between the bottom end of the slide groove and the bottom surface of the support tube, and it is a non-open port structure; a third through hole is provided on the bottom side wall of the support tube corresponding to the bottom end of the slide groove, and the aperture of the third through hole is larger than the diameter of the guide column, and a threaded hole is provided on the top side wall of the support rod for installing the guide column; when assembling the support assembly, the spring can be first put on the support rod, and then the support tube can be put on the top of the support rod, and then the guide column can be installed in place by adjusting the position, so that the entire support assembly is a single module assembly, so that it can be assembled with the first support plate and the second support plate later, which is convenient for disassembly and maintenance.

[0055] Furthermore, if Fig.10 As shown, the locking structure 430 includes an electric push rod 431, a third support plate 432, and a plurality of universal sleeves 433; the electric push rod 431 is installed in the support frame 423, and the piston rod of the electric push rod is arranged downward and extends to the bottom of the second support plate; the third support plate 432 is mounted on the piston rod ends of the plurality of electric push rods 431, and the lifting and lowering activities are driven by the electric push rods; the top surface of the third support plate 432 is provided with a plurality of card slots, the positions of the card slots correspond to the positions of the second guide holes, and the universal sleeve 433 is mounted in the card slots; the bottom of the support rod 610 A prismatic block 612 is fixedly provided at the end; when the universal sleeve is sleeved on the outside of the block, the support rod is locked; further, a second through hole is provided at the bottom of the slot, and a threaded hole is correspondingly provided on the bottom surface of the universal sleeve, and the bottom of the universal sleeve is clamped at the slot and fixedly connected by a bolt passing through the second through hole; the slot is a prismatic slot structure, and the outer wall shape of the universal sleeve is adapted to the shape of the slot to form an effective clamping fit, which is limited to movement only along the axial direction, ensuring that the universal sleeve will not rotate, which means that the support rod can be effectively locked;

[0056] Furthermore, locking assemblies 700 are installed on the top surfaces of both ends of the third support plate 432, and first through holes 426 are correspondingly provided at both ends of the second support plate 422; at least two spring latches 800 are installed on the outer side of the bottom end of the first through hole 426; when the locking assembly rises to the first preset height position with the third support plate, the locking assembly and the spring latch form a locking connection; when the locking assembly continues to rise to the second preset height position with the third support plate, the locking assembly is unlocked and disengaged from the spring latch; by using the cooperation between the locking assembly and the spring latch, this part can be used to perform secondary locking on the third support plate, so that it is maintained in the position locked to the support assembly, effectively enhancing the overall locking effect, and also reducing the force load on the electric push rod, preventing the electric push rod from being accidentally unlocked due to damage or failure, and maintaining a normal working state.

[0057] Furthermore, if Fig.11 , Fig.12 As shown, the locking assembly 700 includes a support seat 710, a support column 720, and a collar 730; the bottom of the support column 720 is installed on the support seat 710, and a support block 740 is fixedly arranged on the top of the support column 720, and the support block has a frustum-shaped structure; the collar 730 is movably sleeved on the support column 720, and the bottom of the collar has a conical structure that narrows downward; when the collar moves down to abut against the support seat, a gap sufficient for the lock tongue of the spring latch to extend therein is left between the collar and the support block; the top surface of the collar 730 is provided with a convex ring 731 that fits the lock tongue, and when the locking assembly continues to move upward, the collar can compress the lock tongue through the convex ring; the bottom surface of the support block 740 corresponds to the convex ring 731 31 is provided with a groove 741. When the collar moves up, the convex ring is received in the groove, and the top surface of the collar abuts against the bottom surface of the support block. An inclined guiding surface is provided on the edge of the top surface of the convex ring. When the collar moves up with the third supporting plate, the guiding surface contacts the inclined surface of the locking tongue, thereby forming a thrust on the locking tongue, compressing the locking tongue, and moving the locking tongue to the bottom of the collar. When the third supporting plate moves down, the locking tongue drives the collar to move up until the collar abuts against the support block and cannot move. At this time, the bottom of the collar squeezes the locking tongue until the locking tongue returns to the top surface of the support block to complete unlocking. Moreover, the overall structure is an assembled structure, which can facilitate the processing and production of various structural components, and is also convenient for disassembly, assembly and replacement.

[0058] Furthermore, if Figure 4 As shown, the pillow 410 includes a cover body 411 made of soft rubber, the cover body is a rectangular structure, and brackets 412 are fixedly provided at the bottom of both sides of the cover body 411 along the width direction of the bed board; Fig.14As shown, a support box 220 is fixedly provided at one end of the bed board 210, and the top of the support box is open. The pillow support mechanism 400 is correspondingly installed at the support box 220, and the pillow cover is arranged on the outside of the open mouth of the support box, and the bracket is fixed to the top of the support box by bolts; the top surface of the first support plate 421 corresponds to two brackets 412 and is fixed with a vertical plate 427, and the bracket and the vertical plate are connected by bolts; the cover body is supported by the support assembly to maintain the original shape; the assembly structure is adopted, which can facilitate the processing, production and pre-installation of each structural component itself, and is convenient for overall disassembly, assembly and replacement; wherein, the pillow is a soft cover structure with certain deformable conditions, which can cover the support assembly and maintain the overall beauty, and does not affect the telescopic action of the support assembly, so as to facilitate overall deformation.

[0059] Furthermore, if Fig.13 As shown, the pressure head mechanism 500 includes a linear slide 510, a push frame 520, a head cover 530, and an air bag 540; the linear slide 510 is installed at the bottom of the support box 220, and the push frame is installed on the slider of the linear slide. The two opposite side walls of the support box 220 are correspondingly provided with strip holes 230, and the strip holes extend along the length direction of the bed board; the two ends of the push frame extend to the strip holes, and the linear slide drives the push frame to slide along the strip holes; the head cover 530 is arranged above the pillow 410, and the bottom of the two side plates of the head cover extends downward, and the push frame 52 The two ends of the head cover 530 are connected to the two side plates of the head cover 530 by bolts; the top of the head cover 530 is arched upward to form a head cover groove 531, and the airbag 540 is fixed inside the head cover groove 531. The side of the airbag close to the center of the bed board is an inclined structure, and it is inclined downward away from the bed board; this structural design can realize automatic adjustment for compaction, and the airbag is driven to move toward the head by the linear slide. The design of the inclined structure can better adapt to heads of different diameters for compaction, effectively improving applicability and comfort; Figure 2 As shown, before the patient lies down or after the examination is completed, the head cover can be moved to the outside to remove the obstruction at the upper position, so that the patient can lie down or raise his head conveniently; further, an air pressure sensor is installed inside the airbag, and the airbag is a closed cavity structure. A pipe joint is fixedly provided on the bag wall for installing the air pressure sensor, so that the required airtight effect can be maintained, and the probe of the air pressure sensor can also be allowed to enter the airbag to perform the required air pressure monitoring, so as to adjust the compression force;

[0060] It should be noted that the motor parts of electric push rods and linear slides can reduce the influence of external magnetic fields on motor operation and maintain the normal operation of electrical components by adding magnetic shielding covers or applying magnetic shielding coatings.

[0061] The present invention also discloses a method for using a magnetic resonance imaging device, comprising the following steps:

[0062] S1, the patient lies on the bed board, with the head and neck resting on the pillow support mechanism, and the head centered as far as possible relative to the head cover;

[0063] S2, adjust and start the head pressing mechanism, so that the head cover gradually moves forward to a suitable position, forming a downward pressing effect on the patient's head;

[0064] S3, after being pressed into place, the locking structure is adjusted to lock the support assembly so that the support assembly cannot be raised or lowered, thereby maintaining the shape of the bottom and surrounding areas of the patient's head and neck, thereby effectively blocking and limiting the surrounding areas of the head and neck, and preventing the position from being easily changed;

[0065] S4, start the imaging body and the detection bed to examine the patient;

[0066] S5, after the examination is completed, the imaging body returns to the standby state, the detection bed is also reset to the initial state, and the patient is transferred from the detection channel to the outside;

[0067] S6, adjusting and starting the head pressing mechanism to move the head cover backward and reset it, thereby releasing the pressing limit on the patient's head;

[0068] S7, adjusting the start locking structure to release the lock on the support assembly, so that the support assembly returns to the telescopic active state;

[0069] S8, the patient leaves the examination bed and the examination is completed.

[0070] In step S1, for awake patients, real-time adjustments can be made by asking the patient how they feel, so that the patient's head and neck are supported as much as possible by the support components; for patients who are not awake or have difficulty in answering, medical staff need to observe from the side to see if the pillow is in place;

[0071] In step S2, for awake patients, real-time adjustments can be made by asking the patient how they feel, and judging whether the movement is in place in combination with the air pressure value of the airbag; for patients who are not awake or have difficulty in responding, the judgment is mainly based on the air pressure value of the airbag; the pressure head mechanism plays more of an upper limiting role, and it is sufficient to meet the appropriate compression effect;

[0072] In step S3, the electric push rod drives the third support plate to move up to the first preset height position. At this time, the universal sleeve is sleeved on the outside of the block to lock the bottom end of the support rod, so that the support rod cannot rotate, and the upper support tube cannot move and is maintained in a certain position; and the lock tongue of the spring latch is stuck on the locking assembly to lock the third support plate again, so that it will not move easily without external force, and the universal sleeve is maintained to lock the support rod, and part of the force can be dispersed through the spring latch to reduce the load on the electric push rod and extend its service life; further, in step S7, the electric push rod is required to drive the third support plate to rise to the second preset height position, so that the spring latch and the locking assembly are unlocked, and then the third support plate is pushed down to the position where the universal sleeve is separated from the block to unlock the support assembly.

[0073] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. A head and neck fixation device, characterized in that: It includes a pillow support mechanism and a pressure head mechanism; The pillow support mechanism is installed at the end of the bed board to support the patient's head and neck, provide a sunken support cover, and form a barrier on both sides of the head; The pressure head mechanism is used to provide compression limitation to the patient's head.

2. A head and neck fixation device according to claim 1, characterized in that: The pillow support mechanism includes a pillow pad, a supporting structure, and a locking structure; The support structure includes a plurality of retractable and movable support components, which are arranged in a rectangular array to provide dense multi-point support; the movable parts of the support components extend above the top surface of the bed board, and the pillow covers are arranged on the top of the movable parts of all the support components; The locking structure is used to lock the support assembly so that the support assembly cannot continue to shrink and press down.

3. A head and neck fixation device according to claim 2, characterized in that: The supporting structure includes a first supporting plate, a second supporting plate, and a supporting assembly; The first support plate is located above the second support plate, and the first support plate and the second support plate are connected overhead via support frames on both sides; The first support plate is provided with a plurality of first guide holes distributed in a dense rectangular array, and the second support plate is correspondingly provided with a plurality of second guide holes; The support assembly includes a support rod, a support tube, and a spring. The bottom of the support rod is rotatably mounted at the second guide hole. The support tube is sleeved on the support rod. The support tube is movably inserted into the first guide hole and moves only along the axial direction. The spring is sleeved on the outside of the support rod to provide an elastic force for the support tube to push upward. A guide column is installed on the top side wall of the support rod. The inner wall of the support tube is provided with a slide groove for the guide column to slide. The slide groove is a spiral structure. The vertical movement of the support tube can drive the support rod to rotate. The locking structure is used to limit the rotation of the support rod, so that the support tube is maintained at a corresponding height; The support tubes are all located inside the pillows, and the top surfaces of the support tubes provide support to the top of the pillows, so as to maintain the shape of the pillows when no external force is applied.

4. A head and neck fixation device according to claim 3, characterized in that: The locking structure includes an electric push rod, a third support plate, and a plurality of universal sleeves; The electric push rod is installed in the support frame, and the piston rod of the electric push rod is arranged downward and extends to the bottom of the second support plate; the third support plate is mounted on the ends of the piston rods of the multiple electric push rods, and the lifting and lowering activities are driven by the electric push rods; The top surface of the third support plate is provided with a plurality of slots, the positions of the slots correspond to the positions of the second guide holes, and the universal sleeve is clamped and installed in the slots; A ridge-shaped block is fixedly provided at the bottom end of the support rod; When the universal sleeve is sleeved on the outside of the clamping block, the support rod is locked.

5. A head and neck fixation device according to claim 4, characterized in that: The top surfaces of both ends of the third support plate are provided with locking components, and the two ends of the second support plate are provided with first through holes correspondingly; At least two spring latches are installed on the outer side of the bottom end of the first through hole; When the locking assembly rises to the first preset height position along with the third support plate, the locking assembly and the spring latch are locked in a locking manner; When the locking assembly continues to rise to the second preset height position along with the third supporting plate, the locking assembly is unlocked and disengaged from the spring latch.

6. A head and neck fixation device according to claim 5, characterized in that: The locking assembly includes a support seat, a support column, and a collar; The bottom of the support column is installed on the support seat, and a support block is fixedly provided on the top of the support column, and the support block is in a frustum-shaped structure; the collar is movably sleeved on the support column, and the bottom of the collar is in a conical structure that narrows downward; when the collar moves down to abut against the support seat, a gap sufficient for the lock tongue of the spring latch to extend into is left between the collar and the support block; The top surface of the collar is provided with a convex ring adapted to the lock tongue. When the locking assembly continues to move upward, the collar can compress the lock tongue through the convex ring. The bottom surface of the support block is provided with a groove corresponding to the convex ring. When the sleeve ring moves upward, the convex ring is received in the groove, and the top surface of the sleeve ring abuts against the bottom surface of the support block.

7. A head and neck fixation device according to claim 6, characterized in that: The pillow pad includes a cover body made of soft rubber, the cover body is in a rectangular structure, and brackets are fixedly provided at the bottom of both sides of the cover body along the width direction of the bed board; A support box is fixedly provided at one end of the bed board, the top of the support box is open, the pillow support mechanism is correspondingly installed at the support box, the pillow cover is arranged outside the open mouth of the support box, and the bracket is fixed to the top of the support box by bolts; A vertical plate is fixedly provided on the top surface of the first support plate corresponding to the two brackets, and the brackets and the vertical plate are connected by bolts; The cover body is supported by the supporting assembly to maintain the original shape.

8. A head and neck fixation device according to claim 7, characterized in that: The press head mechanism includes a linear slide, a push frame, a head cover, and an air bag; The linear slide is installed at the bottom of the support box, the push frame is installed on the slider of the linear slide, and two opposite side walls of the support box are correspondingly provided with strip holes, which extend along the length direction of the bed board; The two ends of the push frame extend to the strip hole, and the linear slide drives the push frame to slide along the strip hole; The head cover is arranged above the pillow, the bottoms of the two side plates of the head cover extend downward, and the two ends of the push frame are connected to the two side plates of the head cover by bolts; The top of the head cover is arched upward to form a head cover groove, and the air bag is fixedly arranged inside the head cover groove. The side of the air bag close to the center of the bed board is an inclined structure and is inclined downward in a direction away from the bed board.

9. A magnetic resonance imaging device, comprising an imaging body and a detection bed, wherein the imaging body is provided with a detection channel, and the detection bed is provided with a movable bed board, the bed board is arranged corresponding to the detection channel, and the bed board can enter and exit the detection channel; characterized in that: A head and neck fixing device as claimed in claim 8 is installed on the bed board.

10. A method for using the magnetic resonance imaging device according to claim 9, characterized in that: The following steps are involved: S1, the patient lies on the bed board, with the head and neck resting on the pillow support mechanism, and the head centered as far as possible relative to the head cover; S2, adjust and start the head pressing mechanism, so that the head cover gradually moves forward to a suitable position, forming a downward pressing effect on the patient's head; S3, after being pressed into place, the locking structure is adjusted to lock the support assembly so that the support assembly cannot be raised or lowered, thereby maintaining the shape of the bottom and surrounding areas of the patient's head and neck, thereby effectively blocking and limiting the surrounding areas of the head and neck, and preventing the position from being easily changed; S4, start the imaging body and the detection bed to examine the patient; S5, after the examination is completed, the imaging body returns to the standby state, the detection bed is also reset to the initial state, and the patient is transferred from the detection channel to the outside; S6, adjusting and starting the head pressing mechanism to move the head cover backward and reset it, thereby releasing the pressing limit on the patient's head; S7, adjusting the start locking structure to release the lock on the support assembly, so that the support assembly returns to the telescopic active state; S8, the patient leaves the examination bed and the examination is completed.

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