Body position pad for neck and chest combined CT (Computed Tomography) examination

Abstract

The utility model discloses a body position pad for combined CT (Computed Tomography) examination of neck and chest, the bottom surface of the body position pad is matched with a CT examination bed, the body position pad comprises a body back section and a neck shoulder section, the body back section is used for supporting the body, the neck shoulder section is integrally formed with the body back section and is used for supporting the neck, and the body back section is used for the examinee to lie flat. A neck positioning groove is formed in the middle of the neck and shoulder section, the top face of the neck and shoulder section is higher than the top face of the body back section by a certain distance so as to limit the shoulders from protruding upwards, when a subject lies flat, the neck positioning groove keeps normal physiological bending of the cervical vertebra and keeps the neck and the chest flush, the head can naturally lean backwards under the action of gravity, the lower jaw naturally lifts upwards, and the neck is in an over-stretching position as a whole. The body position pad can help a patient to better meet the body position requirement of the neck and chest combined CT examination, avoids or reduces artifacts caused by shoulders to the thyroid gland of the neck, is suitable for the neck and chest combined CT examination of the thyroid cancer patient, and is particularly suitable for the thyroid gland CT examination.

Description

Technical Field

[0001] The utility model relates to a medical equipment improvement technology, in particular to a body position pad used for neck and chest combined CT examination. Background Art

[0002] Combined cervical and thoracic CT is often used for the diagnosis and preoperative evaluation of thyroid cancer patients. It offers advantages over ultrasound in observing lymph nodes, larger lesions, and their relationship to surrounding structures. However, thyroid CT often produces streak artifacts and increased noise due to the close proximity of the bilateral shoulders and clavicles to the thyroid gland, hindering the observation of thyroid lesions and cervical lymph nodes.

[0003] Therefore, body position adjustment is required during CT examination of the neck and chest. The adjustment methods include: (1) the examinee lies flat on the examination bed with a pillow under the head, and the examinee is required to raise his head to cooperate; (2) the examinee lies flat on the examination bed with a neck brace under the neck. In this way, the neck brace cannot minimize the above-mentioned artifacts, and causes the neck to tilt forward, changes the normal physiological curvature of the vertebrae, and the reconstructed coronal plane cannot present the neck and chest as a whole. It is not suitable for combined neck and chest scanning.

[0004] Chinese utility model patent CN 218105912 U discloses a body positioning cushion for thyroid CT examination. The middle part of the body positioning cushion is raised and flat to support the chest and back. Using this body positioning cushion can make the examinee's head droop backward and pull the chest forward, while the head tilts back and the chin lifts up, thereby exposing the thyroid gland. However, the shoulders are not limited or positioned. When the head is pulled backward, gravity also easily pulls the shoulders backward, causing them to slide toward the head, causing the body position to be too high, so that the shoulders are lifted up to form a shrugging posture, which causes artifacts to appear. The lack of support for the arms and shoulders can easily cause the examinee to lose balance and lead to unilateral tilt. The neck is restricted and supported too low, which can easily cause the neck to be lower than the chest, resulting in neck instability. Summary of the Invention

[0005] In view of the deficiencies of the existing technology, the technical problem to be solved by the present invention is to provide a positioning cushion for combined cervical and chest CT examinations, which can minimize artifacts and avoid forward tilt of the neck while maintaining the normal physiological curvature of the cervical vertebrae and keeping the neck and chest level.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a positioning pad for combined cervical and chest CT examination, the bottom surface of the positioning pad is adapted to the CT examination bed, the positioning pad includes a back section for supporting the torso, and a neck-shoulder section integrally formed with the back section for supporting the neck, a neck positioning groove is provided in the middle of the neck-shoulder section, and the top surface of the neck-shoulder section is higher than the top surface of the back section by a certain distance to limit the shoulders from rising upward.

[0007] As an improvement to the technical solution of the positioning pad for combined cervical and thoracic CT examination of the present invention, a head pad capable of supporting the head is provided on the other side of the cervical and shoulder section relative to the back section, and the middle part of the head pad is recessed downward to form a headrest groove.

[0008] As an improvement to the technical solution of the positioning pad for combined cervical and thoracic CT examination of the present invention, the head pad is as high as the back of the body, and the headrest groove is hemispherically concave and penetrates the bottom surface of the head pad.

[0009] As an improvement to the technical solution of the positioning pad for neck and chest combined CT examination of the present invention, the bottom of the neck positioning groove is higher than the top surface of the back section of the body.

[0010] As an improvement to the technical solution of the positioning pad for neck and chest combined CT examination of the present invention, the neck positioning groove is saddle-shaped, wherein the middle longitudinal section profile of the saddle bottom is an arc with a convex middle portion.

[0011] As an improvement to the technical solution of the positioning pad for combined cervical and thoracic CT examination of the present invention, the two ends of the middle longitudinal section of the saddle bottom of the cervical positioning groove are 1 to 2.5 cm higher than the top surface of the dorsal segment and its top is 4 cm higher than the top surface of the dorsal segment.

[0012] As an improvement to the technical solution of the positioning pad for neck and chest combined CT examination of the present invention, the thickness of the back section is 6 to 8 cm; the thickness of the neck and shoulder section is 6 to 7 cm and is 5 to 8 cm higher than the back section.

[0013] As an improvement to the technical solution of the positioning pad for combined cervical and thoracic CT examination of the present invention, the positioning pad is integrally formed of hard foam; Velcro is provided between the bottom surface of the positioning pad and the CT examination bed for fitting each other.

[0014] As an improvement to the technical solution of the positioning pad for combined cervical and thoracic CT examination of the present invention, the bottom surface of the positioning pad is provided with a hard plastic bottom shell, and the four sides of the plastic bottom shell are provided with upward extending limiting flanges.

[0015] The beneficial effects of the present invention are as follows: the back section of the positioning cushion allows the examinee to lie flat and slightly elevates the examinee's entire torso, so that there is space behind the head and the head can naturally tilt back under the action of gravity. When the examinee lies flat, the cervical positioning groove maintains the normal physiological curvature of the cervical spine and keeps the neck and chest level, and the lower jaw naturally lifts up, so that the neck is hyperextended as a whole, and the torso can be placed in a natural lying position. The positioning cushion can help the examinee achieve a posture that is more consistent with the requirements of a combined neck and chest CT examination. The neck and shoulder section, which is set at a certain height above the back section, can limit the examinee's shoulders from hunching toward the head, preventing the shoulders from causing artifacts on the thyroid gland in the neck, thereby minimizing artifacts and making the positioning cushion suitable for thyroid CT examinations, especially for combined neck and chest CT examinations of thyroid cancer patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the body positioning cushion used for cervical and chest combined CT examination according to the present invention.

[0017] Figure 2 for Figure 1 Schematic diagram of the tail side structure of the positioning pad shown.

[0018] Figure 3 for Figure 1 Schematic diagram of the top three-dimensional structure of the body positioning cushion shown.

[0019] Figure 4 Schematic diagram of the three-dimensional structure of the second embodiment of the body positioning cushion.

[0020] Figure 5 for Figure 4 Schematic diagram of the top three-dimensional structure of the body positioning cushion shown.

[0021] Figure 6 for Figure 4 Schematic diagram of the structure of the positioning cushion in the downward direction.

[0022] Figure 7 for Figure 6 A schematic diagram of the lateral structure of the body positioning cushion shown. DETAILED DESCRIPTION

[0023] The specific implementation of the present utility model will be further described below with reference to the accompanying drawings.

[0024] Implementation method 1: Figure 1 、 Figure 2 、 Figure 3As shown, the present invention provides a positioning cushion for combined cervical and thoracic CT examinations. The bottom surface of the positioning cushion is compatible with the CT examination bed. The positioning cushion includes a back section 11 for supporting the torso, and a neck-shoulder section 12 integrally formed with the back section 11 for supporting the neck. A neck positioning groove 13 is provided in the middle of the neck-shoulder section. The top surface of the neck-shoulder section is a certain distance higher than the top surface of the back section 11 to limit the upward rise of the shoulders, that is, to prevent the shoulders from rising to the left and right sides of the head and neck, thereby avoiding obstruction of the radiograph. The back section is provided for the patient to lie flat. The neck positioning groove maintains the normal physiological curvature of the cervical spine and keeps the neck and chest level when the patient lies flat. The back section of the positioning cushion slightly elevates the patient's entire torso, allowing space at the back of the head to naturally tilt back under the action of gravity, naturally lifting the lower jaw, and overall putting the neck in a hyperextended position. The lying torso can achieve a natural lying posture, and the neck positioning groove 13 supports the cervical vertebrae, maintaining a stable posture. Setting the neck and shoulder section higher than the back section can prevent the examinee's shoulders from hunching toward the head, preventing the shoulders from causing artifacts on the thyroid gland in the neck, thereby minimizing artifacts. This positioning cushion can help the examinee achieve a position more suitable for combined neck and chest CT examinations, making it suitable for thyroid CT examinations, especially for combined neck and chest CT examinations in patients with thyroid cancer.

[0025] The bottom of the neck positioning groove 13 is higher than the top surface of the back section of the body, thereby providing support for the neck and maintaining its natural physiological curvature, thereby preventing the neck from bending forward due to the head leaning back.

[0026] Furthermore, the neck positioning groove 13 is saddle-shaped, wherein the middle longitudinal section of the saddle bottom is an arc-shaped with a raised center, thereby effectively limiting the support of the neck, and can be relaxed on both sides to prevent excessive squeezing of those with excessive neck muscles, thereby improving its versatility and reducing restrictions on use. Specifically, the ends of the middle longitudinal section of the saddle bottom of the neck positioning groove 13 are 1 to 2.5 cm higher than the top surface of the back body segment 11, and its top is 4 cm higher than the top surface of the back body segment. With such dimensions, the neck positioning groove can provide comfortable and effective support for the subject's neck, and keep the head and neck centered and facing forward.

[0027] The back section 11 is 6-8 cm thick, allowing the torso to rise as a whole, allowing ample space for the head to tilt back. The neck and shoulder section 12 is 6-7 cm thick and 5-8 cm higher than the back section, effectively limiting and blocking the shoulders from rising above the neck and minimizing artifacts.

[0028] The positioning cushion is formed of a hard foam in one piece. The positioning cushion with a certain hardness can effectively lift / raise the body position, allowing the head to have space to lean back, avoiding tilting the head back and causing the neck to lean forward.

[0029] Wherein, a Velcro is provided between the bottom surface of the positioning cushion and the CT examination bed to fit each other, thereby ensuring the stability of the positioning cushion.

[0030] Furthermore, a hard plastic bottom shell is provided on the bottom surface of the positioning cushion, and upwardly extending limiting flanges are provided around the plastic bottom shell, thereby increasing the strength and firmness of the positioning cushion and making it more durable.

[0031] Implementation method 2: Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 As shown, a head pad 15 for supporting the head is provided on the other side of the neck-shoulder section 12 relative to the back section. The middle part of the head pad is recessed downward to form a headrest groove 16 to limit and position the head, effectively maintaining the head facing forward and preventing the head from twisting the neck due to tilting. The head pad can also be a soft head pad, which is recessed or even penetrated in the middle to form a ring or C-shape with an opening on the lower side, which can provide maximum space for the head to lean back. Specifically, the head pad 15 is as high as the back section as a whole, and the headrest groove 16 is hemispherically recessed and penetrates the bottom surface of the head pad, so that the headrest groove forms a hollow bottom surface. The headrest groove is used to place the head and limit the head from tilting to the sides.

[0032] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A body positioning cushion for combined cervical and thoracic CT examination, characterized by: The bottom surface of the positioning cushion is adapted to the CT examination bed. The positioning cushion includes a back section for supporting the torso and a neck-shoulder section integrally formed with the back section for supporting the neck. A neck positioning groove is provided in the middle of the neck-shoulder section. The top surface of the neck-shoulder section is higher than the top surface of the back section by a certain distance to limit the upward rise of the shoulders.

2. The body positioning cushion for combined cervical and thoracic CT examination according to claim 1, characterized in that: A head pad for supporting the head is provided at the other side of the neck and shoulder section relative to the body back section, and the middle part of the head pad is recessed downward to form a headrest groove.

3. The body positioning cushion for combined cervical and thoracic CT examination according to claim 2, characterized in that: The headrest is as high as the back section of the body, and the headrest groove is hemispherically concave and penetrates the bottom surface of the headrest.

4. The body positioning cushion for combined cervical and thoracic CT examination according to claim 1, characterized in that: The bottom of the neck positioning groove is higher than the top surface of the body back segment.

5. The body positioning cushion for combined cervical and thoracic CT examination according to claim 4, characterized in that: The neck positioning groove is saddle-shaped, wherein the middle longitudinal section profile of the saddle bottom is an arc with a convex middle portion.

6. The body positioning cushion for combined cervical and thoracic CT examination according to claim 5, characterized in that: The two ends of the middle longitudinal section of the saddle bottom of the neck positioning groove are 1 to 2.5 cm higher than the top surface of the body back section, and the top is 4 cm higher than the top surface of the body back section.

7. The body positioning cushion for combined cervical and thoracic CT examination according to claim 1, characterized in that: The thickness of the body back section is 6 to 8 cm; the thickness of the neck and shoulder section is 6 to 7 cm and is 5 to 8 cm higher than the body back section.

8. The body positioning cushion for combined cervical and thoracic CT examination according to claim 1, characterized in that: The positioning cushion is formed of hard foam in one piece; a Velcro is provided between the bottom surface of the positioning cushion and the CT examination bed for fitting together.

9. The body positioning cushion for combined cervical and thoracic CT examination according to claim 8, characterized in that: The bottom surface of the positioning cushion is provided with a hard plastic bottom shell, and the four sides of the plastic bottom shell are provided with limiting flanges extending upwards.

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