A U-shaped neck pillow for reducing interference with thyroid CT scanning

Abstract

The invention relates to the technical field of medical cervical pillows, and discloses a U-shaped cervical pillow for reducing interference with thyroid CT scanning, wherein the cervical pillow comprises a pillow base and a column, two groups of the columns are fixedly arranged on both sides of the pillow base, a lower cavity is formed between the two groups of the columns, and a plurality of groups of support units are arranged between the two groups of the columns, and the plurality of groups of support units are distributed in sequence along the length direction of the lower cavity; the U-shaped cervical pillow for reducing interference with thyroid CT scanning is characterized in that a plurality of support units are arranged in the middle of the U-shaped cervical pillow composed of the pillow base and the column, and two adjacent support units are connected by a connecting piece, and the assembly groove and the limit block in the support block on the inner side wall of the column cooperate with the end of the central axis of the support unit, so that the support unit can be tilted downward or reset upward in sequence, so that the support surface formed by the pillow base and the support unit can fully and effectively support the patient's neck, and at the same time, it is convenient for the patient to turn his head downward to adjust the position of his lower jaw.

Description

Technical Field

[0001] The invention relates to the technical field of medical cervical pillows, in particular to a U-shaped cervical pillow for reducing interference with thyroid CT scanning. Background Art

[0002] Thyroid CT scan is a routine item in thyroid examination, mainly used to examine the condition of the thyroid gland and its surrounding tissue structures, including the location, size, shape, density or signal of the thyroid gland, the enhancement of the thyroid gland after enhancement, and the condition of the surrounding structures of the thyroid gland (trachea, blood vessels, nerves, muscles, bones, lymph nodes). The thyroid gland is located on both sides and in front of the larynx and the upper part of the trachea. It is divided into left and right lobes and is H-shaped. Therefore, when performing a thyroid CT scan on a patient, the scanning range is generally from the fourth cervical vertebra to the first thoracic vertebra.

[0003] The medical neck pillow is a tool to assist in exposing the patient's neck during thyroid CT scanning. The neck pillow is placed under the patient's neck, but the traditional neck pillow has a simple structure and can only support the neck. When using the existing neck pillow, the patient's jaw position is not easy to adjust. When the patient's jaw is more prominent, it will interfere with the thyroid CT scan image. Radial artifacts will appear in the image, affecting the image quality. In addition, the existing neck pillow has poor adjustability. The patients' necks are of different lengths and the characteristics of the protruding jaws are also different. It is difficult for the neck pillow to meet the needs of different patient groups. When the neck pillow does not match the patient's neck, it is inevitable that it will interfere with the thyroid CT scan image. Summary of the invention

[0004] In order to solve the problems that the existing neck pillows are not convenient for patients to adjust the position of their lower jaws, and when the lower jaws of patients are relatively protruding, it will interfere with the thyroid CT scan images. The existing neck pillows have poor adjustability and are difficult to match the necks of different people. When the neck pillows do not match the necks of patients, it will interfere with the thyroid CT scan images. The present invention is implemented through the following technical solutions: A U-shaped neck pillow for reducing interference with thyroid CT scans, the neck pillow includes a pillow base and columns, two groups of the columns are fixedly arranged on both sides of the pillow base, a lower cavity is formed between the two groups of the columns, and a plurality of groups of support units are arranged between the two groups of the columns, and the plurality of groups of support units are sequentially distributed along the length direction of the lower cavity;

[0005] In the two adjacent groups of support units, the support unit close to the pillow seat is the first support unit, and the other group of support units is the second support unit. When the upper surface of the second support unit is located in the same plane as the upper surface of the pillow seat, the upper surface of the first support unit is also located in the same plane as the upper surface of the pillow seat; only when the upper surface of the second support unit is inclined toward the lower cavity, the upper surface of the first support unit can be inclined toward the lower cavity.

[0006] Furthermore, the support unit includes a shaft rod, two adjacent shaft rods are connected by a connecting piece, and the connecting piece is rotatably connected to the shaft rod;

[0007] A plurality of support blocks are fixedly mounted on the inner side wall of the column corresponding to the lower cavity, and the plurality of support blocks correspond to the ends of the plurality of shaft rods respectively. A mounting groove is provided on one side end of the support block away from the pillow seat, and the mounting groove is adapted to the end of the shaft rod;

[0008] When the end of the shaft is in a mating state with the assembly groove, the upper surface of the support unit and the upper surface of the pillow seat are located in the same plane;

[0009] A travel groove is provided at the bottom of the support block, and a limit block is slidably installed inside the travel groove. The limit block can slide into the assembly groove, and the end of the shaft rod in the assembly groove is supported by the limit block, so that the upper surface of the support unit and the upper surface of the pillow seat are located in the same plane.

[0010] Furthermore, an adjusting slide plate is slidably installed in the lower cavity, and when the upper surface of the supporting unit and the upper surface of the pillow seat are located in the same plane, the lower surface of the connecting member and the upper surface of the adjusting slide plate are located in the same plane;

[0011] A push block is fixedly mounted on the upper surface of the adjusting slide plate. When the push block moves with the adjusting slide plate, the push block can come into frictional contact with the lower surface of the limiting block.

[0012] Further, the connecting member is composed of a front end portion 1 and a rear end portion 1, the front end portion 1 is rotatably connected to the shaft rod in the first supporting unit, and the rear end portion 1 is fixedly connected to the shaft rod in the second supporting unit;

[0013] A connecting block 1 is slidably mounted on one side of the front end portion 1 close to the rear end portion 1, a tensioning spring is provided between the connecting block 1 and the inner surface of the front end portion 1, and the connecting block 1 is fixedly connected to the rear end portion 1.

[0014] Further, the connecting member is composed of a second front end portion and a second rear end portion, the second front end portion is rotatably connected to the shaft rod in the first supporting unit, and the second rear end portion is fixedly connected to the shaft rod in the second supporting unit;

[0015] A connecting block 2 is slidably mounted on one side of the second front end portion close to the second rear end portion, a tensioning spring is arranged between the second connecting block and the inner surface of the second front end portion, and the second connecting block is rotatably connected to the second rear end portion;

[0016] When the upper surface of the adjusting slide plate is separated from the lower surface of the second rear end portion of the connecting member, the pushing block is still in contact with the limiting block, and the limiting block is separated from the assembly groove.

[0017] Furthermore, the lower surface of the limit block close to one end of the assembly groove is an arc-shaped guide portion, and the end of the shaft rod can enter the assembly groove through the guide portion.

[0018] Furthermore, the pillow seat is composed of a base and a second filling layer;

[0019] The support unit further comprises a support rod, a second airbag layer and a third filling layer, wherein the support rod is fixedly mounted on the surface of the shaft rod, the second airbag layer is arranged on the outer surface of the support rod, and the third filling layer is arranged on the upper surface of the second airbag layer;

[0020] When the upper surface of the filling layer three in the support unit and the upper surface of the filling layer two in the pillow base are located in the same plane, the filling layers three in two adjacent groups of support units are in contact with each other.

[0021] Furthermore, the supporting side of the upper half of the support rod is semi-cylindrical, and the cross-section of the airbag layer 2 is semi-circular.

[0022] Furthermore, the inner side of the column located above the lower cavity is provided with a plurality of curved side pillows, and the plurality of side pillows respectively correspond to a plurality of groups of support units;

[0023] The surface of the side pillow portion is a filling layer 1, and an airbag layer 1 is arranged inside the filling layer 1.

[0024] Furthermore, the filling layer 1, the filling layer 2 and the filling layer 3 are all made of Akton polymer material.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The U-shaped cervical pillow for reducing interference in thyroid CT scanning is provided with a plurality of support units in the middle of the U-shaped cervical pillow composed of a pillow base and a column, and two adjacent support units are connected by a connecting piece. The assembly groove and the limit block in the support block on the inner wall of the column cooperate with the end of the central axis of the support unit, and the support unit can be adjusted downward in a sequence or reset upward in a sequence, so that the support surface formed by the pillow base and the support unit can fully and effectively support the patient's neck, and at the same time, it is convenient for the patient to turn his head downward to adjust the position of his lower jaw. It can be suitable for patients of various groups with different neck lengths and different jaw protrusion characteristics. At the same time, after the patient lies flat, there is no need to adjust the position of the patient's neck, and the neck pillow can be adjusted to adapt to the patient's neck to reduce the inconvenience of the patient. In addition, the downward tilt or upward reset adjustment of the above-mentioned support unit can be directly achieved by driving the adjustment slide plate, and the adjustment and reset operation of the support unit is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The overall structure of the neck pillow of the present invention is three-dimensional Figure 1 ;

[0028] Figure 2 The overall structure of the neck pillow of the present invention is three-dimensional Figure 2 ;

[0029] Figure 3 This is a cross-sectional view of the internal structure of the neck pillow of the present invention;

[0030] Figure 4 This is a schematic diagram of the distribution structure of the support units in the lower cavity of the neck pillow of the present invention;

[0031] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0032] Figure 6 A three-dimensional diagram of a structure in which a plurality of support units are connected by connecting members in the second embodiment of the present invention;

[0033] Figure 7 It is a three-dimensional diagram of the coordination structure of several support units and support blocks in the second embodiment of the present invention;

[0034] Figure 8 This is a three-dimensional diagram of the connecting member structure in the first embodiment of the present invention;

[0035] Fig. 9 This is a three-dimensional diagram of the connecting member structure in the second embodiment of the present invention;

[0036] Fig.10 This is a three-dimensional diagram of the support block structure of the present invention;

[0037] Fig.11A three-dimensional diagram of the matching structure of the push block and the support block for adjusting the surface of the slide plate inside the neck pillow of the present invention;

[0038] Fig.12 This is a three-dimensional diagram of the combined structure of the adjusting slide plate and the screw rod of the present invention;

[0039] Fig.13 It is a schematic diagram of the partial internal structure of the column of the neck pillow of the present invention.

[0040] In the figure: 1, bottom plate; 2, pillow seat; 21, lower cavity; 3, front pillow; 4, column; 41, side pillow; 411, filling layer one; 42, airbag layer one; 5, filling layer two; 6, shaft; 61, support rod; 62, airbag layer two; 63, filling layer three; 7, connecting piece; 701, front end one; 702, rear end one; 703, connecting block one; 71, front end two; 72, rear end two; 73, connecting block two; 8, supporting block; 81, assembly groove; 82, travel groove; 83, limit block; 831, guide part; 9, adjusting slide plate; 91, push block; 92, guide block; 10, screw rod; 11, adjusting knob. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The embodiment of the U-shaped cervical pillow for reducing interference with thyroid CT scanning is as follows:

[0043] Embodiment 1:

[0044] See also Figure 1-Figure 5 , Figure 8 , Figure 10-13 A U-shaped cervical pillow for reducing interference in thyroid CT scanning, the cervical pillow comprising a pillow seat 2 and columns 4, the pillow seat 2 consisting of a base and a filling layer 5, the pillow seat 2 is mounted on the surface of a bottom plate 1, the bottom plate 1 is mounted on a CT scanning bed, two groups of columns 4 are fixedly arranged on both sides of the pillow seat 2, the pillow seat 2 and the two groups of columns 4 are combined to form a U-shaped cervical pillow, an inclined front occipital portion 3 is arranged on the front side of the pillow seat 2, the filling layer 5 is extended and laid on the surface of the front occipital portion 3, a lower cavity 21 is formed between the two groups of columns 4, the lower cavity 21 is designed to facilitate the patient's head to turn downward when lying flat, a plurality of groups of support units are arranged between the two groups of columns 4, the plurality of groups of support units are sequentially distributed along the length direction of the lower cavity 21, and the support units are used to support the patient's neck.

[0045] Among the two adjacent groups of support units, the support unit close to the pillow base 2 is the first support unit, and the other group of support units is the second support unit. When the upper surface of the second support unit is located in the same plane as the upper surface of the pillow base 2, the upper surface of the first support unit is also located in the same plane as the upper surface of the pillow base 2; only when the upper surface of the second support unit is inclined toward the lower cavity 21, the upper surface of the first support unit can be inclined toward the lower cavity 21.

[0046] The above design can only adjust the support units downward in sequence from the side of the column 4 away from the pillow seat 2. This design is suitable for different groups of patients with different neck lengths and different degrees of jaw protrusion. After the patient lies flat, there is no need for the patient to move the body to adjust the position of the neck. By adjusting the position of one or more groups of support units downward or upward in sequence, the patient can turn his head downward.

[0047] When the patient's head can be turned downward smoothly, his lower jaw can be lifted up and the neck can be exposed in the vertical direction, so that the range from the patient's 4th cervical vertebra to the first thoracic vertebra is exposed within the CT scanning range, avoiding the lower jaw blocking the CT scan of the thyroid gland in the vertical direction.

[0048] The support unit includes an axle rod 6, a support rod 61, an airbag layer 2 62 and a filling layer 3 63. The support rod 61 is fixedly mounted on the surface of the axle rod 6, the airbag layer 2 62 is arranged on the outer surface of the support rod 61, and the filling layer 3 63 is arranged on the upper surface of the airbag layer 2 62.

[0049] When the upper surface of the filling layer three 63 in the support unit and the upper surface of the filling layer two 5 in the pillow base 2 are located in the same plane, the filling layers three 63 in two adjacent groups of support units contact each other. When the filling layer three 63 in the support unit is coplanar with the filling layer two 5, the filling layer two 5 and the filling layer three 63 are combined to form a pillow pad, and the lower surface of the patient's neck is attached to the surface of the pillow pad.

[0050] The supporting side of the upper half of the support rod 61 is semi-cylindrical, and the cross-section of the airbag layer 62 is semi-circular. The design of the support rod 61 can increase the supporting surface of the support unit for the patient's neck. At the same time, when the patient's head rotates downward, the rotation position of the lower surface of the patient's neck and the fitting point of the corresponding support unit are supported by the arc surface formed by the support rod 61 and the airbag layer 62, which will not cause discomfort to the patient's neck.

[0051] Two adjacent shafts 6 are connected by a connecting member 7, and the connecting member 7 is rotatably connected to the shaft 6; the connecting member 7 consists of a front end portion 701 and a rear end portion 702, the front end portion 701 is rotatably connected to the shaft 6 in the first support unit, and the rear end portion 702 is fixedly connected to the shaft 6 in the second support unit.

[0052] A connecting block 703 is slidably installed on one side of the front end portion 701 close to the rear end portion 702, a tensioning spring is provided between the connecting block 703 and the inner surface of the front end portion 701, and the connecting block 703 is fixedly connected to the rear end portion 702.

[0053] Several support blocks 8 are fixedly installed on the inner side wall corresponding to the column 4 and the lower cavity 21, and the several support blocks 8 correspond to the ends of several shaft rods 6 respectively. An assembly groove 81 is provided on one side end of the support block 8 away from the pillow seat 2, and the assembly groove 81 is adapted to the end of the shaft rod 6.

[0054] When the end of the shaft rod 6 is in a mating state with the assembly groove 81, the upper surface of the support unit and the upper surface of the pillow seat 2 are located in the same plane, and the two adjacent support units are connected by the connecting piece 7, and the shaft rod 6 is mated with the assembly groove 81, so that the second support unit can be fixedly supported when the first support unit is in a supported state.

[0055] A travel groove 82 is provided at the bottom of the support block 8, and a limit block 83 is slidably installed inside the travel groove 82. The limit block 83 can slide into the assembly groove 81, and the limit block 83 is used to support the end of the shaft rod 6 in the assembly groove 81, so that the upper surface of the support unit and the upper surface of the pillow seat 2 are located in the same plane. When the limit block 83 is separated from the assembly groove 81, the end of the shaft rod 6 can slide out from the lower end of the assembly groove 81, so that the support unit can be tilted downward.

[0056] The lower surface of the limit block 83 near one end of the assembly groove 81 is an arc-shaped guide portion 831, and the end of the shaft rod 6 can enter the assembly groove 81 through the guide portion 831. When the limit block 83 is not reset to the assembly groove 81, the end of the shaft rod 6 can directly enter the assembly groove 81 through the lower side opening of the assembly groove 81. The design of the guide portion 831 is that even if the limit block 83 is reset to the assembly groove 81, the end of the shaft rod 6 can still enter the assembly groove 81. A compression spring can be set between the limit block 83 and the inner wall of the travel groove 82. With the assistance of the compression spring, the limit block 83 can be smoothly reset to the assembly groove 81.

[0057] An adjusting slide 9 is slidably installed in the lower cavity 21, and a slide groove is opened on the inner side wall of the column 4. Guide blocks 92 are fixedly installed on the lower surfaces of both ends of the adjusting slide 9. The guide blocks 92 extend into the interior of the column 4 through the slide groove. A screw rod 10 is rotatably installed inside the column 4. The guide block 92 is installed on the surface of the screw rod 10 and is threadedly connected to the screw rod 10. The screw rods 10 in the two groups of columns 4 are connected by belts and pulleys to realize synchronous and unidirectional rotation of the two screw rods 10, and one of the screw rods 10 is driven to rotate by a motor installed inside the pillow seat 2.

[0058] An adjusting knob 11 is rotatably installed on the outer surface of the column 4 close to the motor. The adjusting knob 11 serves as an adjusting switch. When it is turned left, the motor rotates forward, and when it is turned right, the motor rotates reversely. Therefore, by turning the adjusting knob 11, the support unit is controlled to tilt downward or reset upward.

[0059] When the upper surface of the support unit and the upper surface of the pillow seat 2 are located in the same plane, the lower surface of the connecting member 7 and the upper surface of the adjusting slide 9 are located in the same plane. When the adjusting slide 9 is used to adjust the support unit downward, when the upper surface of the adjusting slide 9 is separated from the lower surface of the front end portion 701 of the connecting member 7, the corresponding end of the shaft rod 6 can slide out from the lower side of the assembly groove 81. The support unit can be tilted downward, and the end of the shaft rod 6 slides out from the lower side of the assembly groove 81.

[0060] When the support unit needs to be reset upward, the adjusting slide 9 is driven to move, so that the adjusting slide 9 pushes the connecting member 7 to rotate upward, and the connecting member 7 drives the second support unit to reset upward. Under the pushing action of the adjusting slide 9, the end of the shaft rod 6 corresponding to the second support unit enters the assembly groove 81 and re-matches with it. At this time, the front end 701 and the rear end 702 are in a tensioned state.

[0061] A push block 91 is fixedly installed on the upper surface of the adjusting slide 9. When the push block 91 moves with the adjusting slide 9, the push block 91 can frictionally contact with the lower surface of the limit block 83. Under the premise of not affecting the CT scan, the push block 91 and the limit block 83 can be made of magnetic materials. When the push block 91 and the limit block 83 are within a certain range, an attractive force is generated between the push block 91 and the limit block 83, which can improve the effect of the push block 91 driving the limit block 83 to move.

[0062] When the support unit is tilted downward using the adjustment slide 9, as the adjustment slide 9 moves, the push block 91 will contact the corresponding limit block 83 and drive the limit block 83 to move away from the assembly groove 81, so that the limit block 83 is temporarily separated from the assembly groove 81. At this time, the end of the shaft rod 6 can slide down and out of the assembly groove 81, and the support unit can tilt downward smoothly.

[0063] The inner side of the column 4 located above the lower cavity 21 is provided with a plurality of curved side pillow parts 41, and the plurality of side pillow parts 41 respectively correspond to a plurality of groups of support units; the surface of the side pillow part 41 is a filling layer 411, and the inner side of the filling layer 411 is provided with an airbag layer 42, and each side pillow part 41 corresponds to a group of airbag layers 42, and the airbag layers 42 are used independently. The airbag layer 42 corresponding to the side of the patient's neck is in use, and the airbag layer 42 is used to make the filling layer 411 fit the side surface of the patient's neck.

[0064] Filling layer one 411, filling layer two 5 and filling layer three 63 are all made of Akton polymer materials. Akton polymer is similar to human tissue and has unique viscoelasticity, which can better fix local skin. Akton polymer is X-ray transparent and can reduce the interference of radial artifacts on CT scan images.

[0065] Embodiment 2:

[0066] The difference between this embodiment and the first embodiment is that:

[0067] See also Figure 6-Figure 7 , Fig. 9 The connecting member 7 consists of a front end portion 71 and a rear end portion 72. The front end portion 71 is rotatably connected to the shaft rod 6 in the first support unit, and the rear end portion 72 is fixedly connected to the shaft rod 6 in the second support unit; a connecting block 73 is slidably installed on one side end of the front end portion 71 close to the rear end portion 72, a tensioning spring is provided between the connecting block 73 and the inner surface of the front end portion 71, and the connecting block 73 is rotatably connected to the rear end portion 72.

[0068] When the upper surface of the adjusting slide plate 9 is separated from the lower surface of the second rear end portion 72 of the connecting member 7, the push block 91 is still in contact with the limit block 83, and the limit block 83 is separated from the assembly groove 81.

[0069] When the support unit is tilted downward by using the adjustment slide 9, when the upper surface of the adjustment slide 9 is separated from the lower surface of the rear end portion 72 in the connecting member 7, the rear end portion 72 can rotate relative to the front end portion 71, so that the corresponding end of the shaft rod 6 can slide out from the lower side of the assembly groove 81, and the support unit can be tilted downward, and the end of the shaft rod 6 slides out from the lower side of the assembly groove 81.

[0070] When the support unit is reset upward by using the adjusting slide plate 9, the front end portion 71 and the rear end portion 72 in the connecting member 7 are pushed to rotate upward by moving the adjusting slide plate 9. Under the action of the rear end portion 72, the corresponding end of the shaft rod 6 will enter the assembly groove 81 through the guide portion 831. When the end of the shaft rod 6 is matched with the assembly groove 81, the front end portion 71 and the rear end portion 72 are in a tensioned state.

[0071] The front end portion 71 and the rear end portion 72 are connected by a rotatable connection design through a connecting block 73. When the center distance between two adjacent support units is large, the adjusting slide 9 can realize the secondary downward tilt adjustment or secondary upward reset of the support unit, which can not only improve the downward tilt effect of the support unit, but also facilitate the upward reset of the support unit.

[0072] U-shaped neck pillow usage principle:

[0073] The neck pillow is installed on the CT scanning bed through the base plate 1. The patient lies flat on the CT scanning bed with the patient's neck inserted into the neck pillow. At this time, the filling layer three 63 in all the supporting units are coplanar with the filling layer two 5. The medical staff determines whether the supporting unit needs to be tilted downward according to the position of the patient's neck in the neck pillow and in cooperation with the patient to facilitate the patient's head to turn downward.

[0074] When it is inconvenient for the patient's head to turn downward, it is necessary to adjust one or more groups of support units to tilt downward. Specifically, the medical staff turns the adjustment knob 11 to start the motor, and the motor drives the screw rod 10 to rotate. The screw rod 10 is threadedly engaged with the guide block 92, driving the adjustment slide 9 to move toward the pillow seat 2. When the adjustment slide 9 moves, it drives the push block 91 to move together. When the push block 91 contacts the limit block 83 in the support block 8 corresponding to the first group of support units that need to be adjusted, the push block 91 drives the limit block 83 to slide in the travel groove 82.

[0075] Until the limit block 83 is separated from the assembly groove 81, as the adjustment slide 9 continues to move, the adjustment slide 9 will be separated from the lower surface of the connecting piece 7 corresponding to the first group of support units that need to be adjusted. At this time, the end of the shaft rod 6 in the first group of support units that need to be adjusted can slide down out of the assembly groove 81, and the support unit can be tilted downward. Similarly, the second and third groups of support units can be adjusted in turn until the patient's head can be smoothly rotated downward.

[0076] After the patient's head is turned downward to a suitable position, the patient's thyroid gland is within the range of the CT scan. At this time, pressure is applied to the airbag layer 42 corresponding to the patient's neck, and the airbag layer 42 is used to make the filling layer 411 fit the side surface of the patient's neck, so that a CT scan of the patient's thyroid gland can be performed.

[0077] After using the neck pillow, when the downward tilted support unit needs to be reset upward, the adjustment knob 11 is rotated in the opposite direction, the motor rotates in the opposite direction, and the adjustment slide 9 moves in the opposite direction synchronously. The adjustment slide 9 pushes the end of the shaft rod 6 into the assembly groove 81 through the connecting piece 7. At the same time, the push block 91 pushes the limit block 83 into the assembly groove 81. If a compression spring is installed in the travel groove 82, the limit block 83 has been reset to the assembly groove 81 in advance, and the corresponding support unit is reset at this time.

[0078] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A U-shaped neck pillow for reducing interference with thyroid CT scanning, the neck pillow comprising a pillow base (2) and columns (4), two groups of the columns (4) being fixedly arranged on both sides of the pillow base (2), characterized in that: A lower cavity (21) is formed between the two groups of upright posts (4), and a plurality of groups of support units are arranged between the two groups of upright posts (4), wherein the plurality of groups of support units are sequentially distributed along the length direction of the lower cavity (21); Of the two adjacent groups of support units, the support unit close to one side of the pillow base (2) is a first support unit, and the other group of support units is a second support unit; when the upper surface of the second support unit is located in the same plane as the upper surface of the pillow base (2), the upper surface of the first support unit is also located in the same plane as the upper surface of the pillow base (2); only when the upper surface of the second support unit is inclined in the direction of the lower cavity (21), the upper surface of the first support unit can be inclined in the direction of the lower cavity (21); The support unit comprises a shaft rod (6), two adjacent shaft rods (6) are connected via a connecting piece (7), and the connecting piece (7) is rotatably connected to the shaft rod (6); A plurality of support blocks (8) are fixedly mounted on the inner side wall of the column (4) corresponding to the lower cavity (21), and the plurality of support blocks (8) respectively correspond to the ends of the plurality of shaft rods (6); a mounting groove (81) is provided on one side end of the support block (8) away from the pillow seat (2), and the mounting groove (81) is adapted to the end of the shaft rod (6); When the end of the shaft rod (6) is in a mating state with the assembly groove (81), the upper surface of the support unit and the upper surface of the pillow seat (2) are located in the same plane; A travel groove (82) is provided at the bottom of the support block (8), and a limit block (83) is slidably installed inside the travel groove (82). The limit block (83) can slide into the assembly groove (81), and the limit block (83) is used to support the end of the shaft rod (6) in the assembly groove (81), so that the upper surface of the support unit and the upper surface of the pillow seat (2) are located in the same plane.

2. The U-shaped cervical pillow for reducing interference with thyroid CT scanning according to claim 1, characterized in that: An adjusting slide plate (9) is slidably mounted in the lower cavity (21), and when the upper surface of the supporting unit and the upper surface of the pillow seat (2) are located in the same plane, the lower surface of the connecting member (7) and the upper surface of the adjusting slide plate (9) are located in the same plane; A push block (91) is fixedly mounted on the upper surface of the adjusting slide plate (9); when the push block (91) moves with the adjusting slide plate (9), the push block (91) can come into frictional contact with the lower surface of the limiting block (83).

3. The U-shaped cervical pillow for reducing interference with thyroid CT scanning according to claim 2, characterized in that: The connecting member (7) is composed of a front end portion (701) and a rear end portion (702), wherein the front end portion (701) is rotatably connected to the shaft rod (6) in the first supporting unit, and the rear end portion (702) is fixedly connected to the shaft rod (6) in the second supporting unit; A connecting block (703) is slidably mounted on one side of the front end portion (701) close to the rear end portion (702), a tensioning spring is provided between the connecting block (703) and the inner surface of the front end portion (701), and the connecting block (703) is fixedly connected to the rear end portion (702).

4. The U-shaped cervical pillow for reducing interference with thyroid CT scanning according to claim 2, characterized in that: The connecting member (7) is composed of a second front end portion (71) and a second rear end portion (72), wherein the second front end portion (71) is rotatably connected to the shaft rod (6) in the first supporting unit, and the second rear end portion (72) is fixedly connected to the shaft rod (6) in the second supporting unit; A connecting block 2 (73) is slidably mounted on one side of the second front end portion (71) close to the second rear end portion (72), a tensioning spring is provided between the second connecting block (73) and the inner surface of the second front end portion (71), and the second connecting block (73) is rotatably connected to the second rear end portion (72); When the upper surface of the adjusting slide plate (9) is separated from the lower surface of the second rear end portion (72) of the connecting member (7), the pushing block (91) is still in contact with the limiting block (83), and the limiting block (83) is separated from the assembly groove (81).

5. The U-shaped cervical pillow for reducing interference with thyroid CT scanning according to claim 3 or 4, characterized in that: The lower surface of the limit block (83) at one end close to the assembly groove (81) is an arc-shaped guide portion (831), and the end of the shaft rod (6) can enter the assembly groove (81) through the guide portion (831).

6. The U-shaped cervical pillow for reducing interference with thyroid CT scanning according to claim 5, characterized in that: The pillow seat (2) is composed of a base and a second filling layer (5); The support unit further comprises a support rod (61), a second airbag layer (62) and a third filling layer (63), wherein the support rod (61) is fixedly mounted on the surface of the shaft rod (6), the second airbag layer (62) is arranged on the outer surface of the support rod (61), and the third filling layer (63) is arranged on the upper surface of the second airbag layer (62); When the upper surface of the filling layer three (63) in the support unit and the upper surface of the filling layer two (5) in the pillow base (2) are located in the same plane, the filling layers three (63) in two adjacent groups of support units are in contact with each other.

7. The U-shaped cervical pillow for reducing interference with thyroid CT scanning according to claim 6, characterized in that: The supporting side of the upper half of the support rod (61) is semi-cylindrical, and the cross-section of the airbag layer 2 (62) is semi-circular.

8. The U-shaped cervical pillow for reducing interference with thyroid CT scanning according to claim 6, characterized in that: The inner side of the upright column (4) located above the lower cavity (21) is provided with a plurality of curved side pillow portions (41), and the plurality of side pillow portions (41) respectively correspond to a plurality of groups of support units; The surface of the side pillow portion (41) is a filling layer 1 (411), and an airbag layer 1 (42) is provided on the inner side of the filling layer 1 (411).

9. The U-shaped cervical pillow for reducing interference with thyroid CT scanning according to claim 8, characterized in that: The filling layer 1 (411), the filling layer 2 (5) and the filling layer 3 (63) are all made of Akton polymer material.

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