Head fixing device for CT (Computed Tomography) examination

Abstract

The invention discloses a head fixing device for CT (Computed Tomography) examination, which is provided with a locking assembly, so that when the head of a patient is placed on a headrest, head side frames on the left side and the right side can be automatically folded inwards to assist the head of the patient to be centered and fixed left and right; in addition, the device is provided with an adjusting assembly, and the pitching angle and the rolling angle of the head of the patient can be adjusted through inflation and deflation between different air bags; a lifting assembly arranged on the device can control the height of the head of the patient by controlling the inflation amount of a lifting air bag; according to the adjustment, satisfactory images can be obtained according to different requirements of head shapes, examination purposes and sick body positions of patients; in addition, the device is provided with a limiting plate, so that the patient can be prevented from sleeping over, examination is affected, and a cranium top positioning image is difficult to display; and finally, the contact part of the device and the patient is made of a soft package material to improve the comfort of the patient.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a head fixing device for CT examination. Background Art

[0002] Head CT (computed tomography) is a technology that uses a precisely collimated x-ray beam and a highly sensitive detector to perform cross-sectional scanning around a certain part of the human body. It has the characteristics of fast scanning time and clear images, and can be used to examine a variety of diseases.

[0003] During a head CT scan, a head fixation device is usually required to ensure the stability of the patient's head to avoid image quality being affected by head movement. However, current head frames are generally large and single, with no distinction between adult and child head frames. The cushions inside are easy to fall off, and the overall height or tilt cannot be adjusted according to the patient's head shape and pathological postures such as hunchback. It also cannot straighten the head left and right and fix the head. In addition, the head frame is made of a hard material and is prone to damage caused by impacts, resulting in insufficient comfort during head CT scans and inability to cooperate with long scans. There is also no limit on the top of the head frame, making it easy to oversleep.

[0004] Therefore, there is a need for a head fixation device for CT examinations. This device utilizes a soft outer covering on the rigid head frame and incorporates a stopper directly above the head frame to prevent the patient from sleeping too much, which could affect the examination and obstruct the localization image of the skull vertex. Furthermore, the device can adjust the overall height and tilt angle of the head frame based on the patient's head shape, examination objectives, and patient position to achieve satisfactory images. Furthermore, the left-right design of the head frame automatically straightens and secures the head after lowering it, producing a perfect image and avoiding motion artifacts. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention designs a head fixation device for CT examination, which is provided with a locking component so that when the patient's head is placed on the head pad, the head side frames on the left and right sides can automatically retract inward to assist in centering the patient's head and fixing it left and right; in addition, the device is provided with an adjustment component, which can adjust the pitch angle and roll angle of the patient's head by setting the inflation and deflation between different airbags; and the lifting component provided in the device can control the height of the patient's head by controlling the inflation amount of the lifting airbag; the above adjustment can obtain satisfactory images according to the different needs of the patient's head shape, examination purpose and pathological body position; in addition, the device is provided with a limit plate to prevent the patient from sleeping too much, affecting the examination and making the positioning image of the skull top difficult to display; finally, the part of the device that contacts the patient is made of soft-pack material to improve the patient's comfort.

[0006] In order to achieve the above technical effects, the present invention discloses a head fixation device for CT examination, comprising: a locking assembly, a limiting plate, an adjustment assembly, and a lifting assembly; the adjustment assembly is slidably connected to the upper end of the lifting assembly; the locking assembly is rotatably connected to the upper end of the adjusting assembly; the limiting plate is fixedly arranged on the upper end of the locking assembly;

[0007] Furthermore, the locking assembly includes: a head pad, a slide rail, a head side frame, a connecting rod, a locking seat, an elastic band, an elastic pile, and a shell; the head pad is slidably mounted on the upper end of the locking seat; the slide rail is fixedly arranged on the upper end of the locking seat; the head side frame is slidably mounted above the slide rail; one end of the connecting rod is rotatably connected to the head pad, and the other end of the connecting rod is rotatably connected to the head side frame; the elastic pile is fixedly arranged on the upper end of the locking seat, one end of the elastic band is fixedly connected to the elastic pile, and the other end of the elastic band is fixedly connected to the head side frame; the shell is fixedly arranged on the outside of the locking seat;

[0008] Furthermore, a spherical pile is fixedly provided at the bottom end of the locking seat;

[0009] Furthermore, the adjustment assembly includes: a first airbag, a second airbag, a third airbag, a fourth airbag, and an airbag seat; a spherical groove is fixedly provided on the top of the airbag seat; the airbag seat is rotatably connected to the bottom end of the locking seat; the first airbag and the second airbag are fixedly provided on the front and rear sides of the upper part of the airbag seat; the third airbag and the fourth airbag are fixedly provided on the left and right sides of the upper part of the airbag seat;

[0010] Furthermore, the first airbag, the second airbag, the third airbag, and the fourth airbag are respectively fixedly provided with an inflation port on their exteriors;

[0011] Furthermore, a sliding pile is fixedly provided on the bottom of the airbag seat;

[0012] Furthermore, the lifting assembly includes: a lifting seat, a lifting airbag; a sliding groove is fixedly provided on the top of the lifting seat, and the airbag seat is slidably sleeved on the upper part of the lifting seat; the lifting airbag is fixedly provided on the upper part of the lifting seat; and an inflation port is fixedly provided on the outside of the lifting airbag;

[0013] Furthermore, the outer surfaces of the head pad, head side frame and outer shell are wrapped with soft packaging.

[0014] The beneficial effects of the present invention are:

[0015] The present invention discloses a head fixation device for CT examination. First, the device uses the automatic folding and alignment function of the locking component. When the patient places the head on the soft head pad, the head side frames on the left and right sides of the device will automatically fold inward, thereby assisting the patient's head to be centered. At the same time, it provides stable fixation in the left and right directions to ensure that the head will not move unnecessarily during the examination.

[0016] Secondly, the adjustment component can flexibly adjust the pitch and roll angles of the patient's head by precisely controlling the inflation and deflation of different airbags, allowing the device to be personalized according to the patient's head shape, examination purpose, and pathological position to obtain the best image effect. In addition, the device is also equipped with a lifting component. By controlling the inflation volume of the lifting airbag, the height of the patient's head can be adjusted to further optimize the image acquisition angle. In order to prevent the patient from sleeping too deeply during the examination and affecting the examination results, the device is equipped with a limit plate to effectively prevent the patient's head from tilting too far back when lying down, ensuring that the positioning image of the skull top can be clearly displayed.

[0017] Finally, considering the patient's comfort, the part of the device that contacts the patient is made of soft-pack material to reduce the patient's discomfort during long examinations, thereby improving the overall examination experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of a head fixation device used for CT examination;

[0020] Figure 2 This is a diagram of the internal structure of a head fixation device used for CT examinations;

[0021] Figure 3 Another internal structural diagram of a head fixation device used for CT examination;

[0022] Figure 4 This is a schematic diagram of a head fixation device for CT examination when it is unlocked;

[0023] Figure 5 This is a schematic diagram of a head fixation device used for CT examination when locked;

[0024] Figure 6 It is a schematic diagram of an adjustment assembly of a head fixation device used for CT examination;

[0025] Figure 7 It is a schematic diagram of a lifting assembly of a head fixation device used for CT examination;

[0026] Figure 8 This is a schematic diagram of the bottom of an airbag seat of a head fixation device used for CT examination;

[0027] Figure 9 This is a bottom schematic diagram of a locking seat of a head fixation device used for CT examination;

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1-locking assembly, 2-limiting plate, 3-adjusting assembly, 4-lifting assembly, 101-head pad, 102-slide rail, 103-head side frame, 104-connecting rod, 105-locking seat, 106-elastic band, 107-elastic pile, 108-housing, 109-ball pile, 301-first airbag, 302-second airbag, 303-third airbag, 304-fourth airbag, 305-airbag seat, 306-ball groove, 307-inflation port, 308-sliding pile, 401-lifting seat, 402-lifting airbag, 403-sliding groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Example 1

[0032] The present invention discloses a head fixing device for CT examination, referring to Figures 1 to 9 , comprising: a locking assembly 1, a limiting plate 2, an adjusting assembly 3, and a lifting assembly 4; the adjusting assembly 3 is slidably connected to the upper end of the lifting assembly 4; the locking assembly 1 is rotatably connected to the upper end of the adjusting assembly 3; the limiting plate 2 is fixedly arranged on the upper end of the locking assembly 1;

[0033] The locking assembly 1 includes: a head pad 101, a slide rail 102, a head side frame 103, a connecting rod 104, a locking seat 105, an elastic band 106, an elastic pile 107, and a shell 108; the head pad 101 is slidably mounted on the upper end of the locking seat 105; the slide rail 102 is fixedly arranged on the upper end of the locking seat 105; the head side frame 103 is slidably mounted above the slide rail 102; one end of the connecting rod 104 is rotatably connected to the head pad 101, and the other end of the connecting rod 104 is rotatably connected to the head side frame 103; the elastic pile 107 is fixedly arranged on the upper end of the locking seat 105, one end of the elastic band 106 is fixedly connected to the elastic pile 107, and the other end of the elastic band 106 is fixedly connected to the head side frame 103; the shell 108 is fixedly arranged on the outside of the locking seat 105; a ball pile 109 is fixedly arranged on the bottom end of the locking seat 105;

[0034] The adjustment assembly 3 includes: a first airbag 301, a second airbag 302, a third airbag 303, a fourth airbag 304, and an airbag seat 305; a spherical groove 306 is fixedly provided on the top of the airbag seat 305; the airbag seat 305 is rotatably connected to the bottom end of the locking seat 105; the first airbag 301 and the second airbag 302 are fixedly provided on the front and rear sides of the upper part of the airbag seat 305; the third airbag 303 and the fourth airbag 304 are fixedly provided on the left and right sides of the upper part of the airbag seat 305; the first airbag 301, the second airbag 302, the third airbag 303, and the fourth airbag 304 are respectively fixedly provided with an inflation port 307 on the outside; and a sliding pile 308 is fixedly provided on the bottom of the airbag seat 305.

[0035] The lifting assembly 4 includes: a lifting seat 401 and a lifting airbag 402; a sliding groove 403 is fixedly provided on the top of the lifting seat 401, and the airbag seat 305 is slidably sleeved on the upper part of the lifting seat 401; the lifting airbag 402 is fixedly provided on the upper part of the lifting seat 401; and an inflation port 307 is fixedly provided on the outside of the lifting airbag 402.

[0036] Example 2

[0037] In this embodiment, a control method for the first airbag 301, the second airbag 302, the third airbag 303, the fourth airbag 304 and the lifting airbag 402 is disclosed; the first airbag 301, the second airbag 302, the third airbag 303, the fourth airbag 304 and the lifting airbag 402 can be connected to the inflator through an inflation tube, and a plurality of valves can be set inside the inflator. The opening and closing of the valves can be controlled by electrical control or mechanical means of existing technology, and the gas volume of the airbag can be changed as needed, thereby realizing the functions of angle adjustment and height adjustment of the remote control device.

[0038] Example 3

[0039] In this embodiment, attention is paid to the comfort of the patient during the examination. For this reason, key components of the device that are in direct contact with the patient's head, such as the head pad 101, the head side frame 103, and the outer shell 108, are all wrapped with soft packaging materials. This soft packaging design is not only to enhance the affinity of the appearance, but more importantly to provide a gentle and elastic cushioning layer when the patient's head comes into contact with the device. The selection of the soft packaging material has been carefully considered. It not only needs to have good cushioning properties to effectively disperse the weight of the patient's head and reduce local pressure, but also needs to have a certain degree of air permeability to help keep the patient's head dry and comfortable during a long examination process, and avoid sweating or discomfort that affects the progress of the examination. In addition, this soft packaging material is also easy to clean and disinfect to meet the strict requirements of hygiene and infection control in the medical environment.

[0040] The working principle and usage process of this device are as follows:

[0041] When using a head fixation device for CT examination, the patient is first guided to the CT examination room and asked to lie on the examination table. The patient's head rests on the head pad 101, ensuring that the head pad 101 fits tightly against the back of the patient's head. When the patient's head is gently placed on the head pad 101, the head side frame 103 of the locking assembly 1 will automatically retract inward. This automatic retraction process not only simplifies the operator's work, but also ensures the stability of the patient's head. In order to prevent the patient from lying too deep during the examination and affecting the examination results, the device is also provided with a limit plate 2. The limit plate 2 can effectively prevent the patient's head from leaning too far back, ensuring that the positioning image of the skull top can be clearly displayed.

[0042] Next, the operator adjusts the pitch and roll angles of the patient's head using the adjustment component 3 according to the specific requirements of the CT examination. For example, if a specific angle scan of the patient's brain is required, the operator can adjust the pitch angle of the head by inflating or deflating the first airbag 301 and the second airbag 302, or adjust the roll angle of the head by inflating or deflating the third airbag 303 and the fourth airbag 304. This fine adjustment method allows the device to adapt to different examination requirements and ensure the best image quality. During the adjustment process, the operator can also control the inflation volume of the lifting airbag 402 through the lifting component 4 to adjust the height of the patient's head. This adjustment is crucial to ensuring the accuracy of the CT scan, as different scanning angles and heights may affect the quality of the image and the accuracy of the diagnosis.

[0043] To enhance patient comfort, the device's contact area is constructed with a soft-padded material. This material is not only soft and comfortable, but also reduces discomfort during prolonged examinations. Throughout the CT scan, patients can experience the device's stable support and soft contact, ensuring a comfortable and accurate examination experience.

[0044] Finally, when the examination is completed, the patient lifts his head. At this time, the tension of the elastic band 106 causes the head side frame 103 to move outward along the slide rail 102, thereby freeing the patient's head. The entire device does not need to be made of metal materials to prevent interference with image quality during the CT process.

[0045] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. A head fixation device for CT examination, characterized in that: include: A locking assembly, a limiting plate, an adjusting assembly, and a lifting assembly; the adjusting assembly is slidably connected to the upper end of the lifting assembly; the locking assembly is rotatably connected to the upper end of the adjusting assembly; The limiting plate is fixedly arranged on the upper end of the locking assembly.

2. A head fixation device for CT examination according to claim 1, characterized in that: The locking assembly includes: a head pad, a slide rail, a head side frame, a connecting rod, a locking seat, an elastic band, an elastic pile, and an outer shell; the head pad is slidably mounted on the upper end of the locking seat; the slide rail is fixedly arranged on the upper end of the locking seat; the head side frame is slidably mounted above the slide rail; one end of the connecting rod is rotatably connected to the head pad, and the other end of the connecting rod is rotatably connected to the head side frame; the elastic pile is fixedly arranged on the upper end of the locking seat, one end of the elastic band is fixedly connected to the elastic pile, and the other end of the elastic band is fixedly connected to the head side frame; the outer shell is fixedly arranged on the outside of the locking seat.

3. The head fixation device for CT examination according to claim 1, characterized in that: A spherical pile is fixedly arranged at the bottom end of the locking seat.

4. The head fixation device for CT examination according to claim 1, characterized in that: The adjustment assembly includes: a first airbag, a second airbag, a third airbag, a fourth airbag, and an airbag seat; a spherical groove is fixedly provided on the top of the airbag seat; the airbag seat is rotatably connected to the bottom end of the locking seat; the first airbag and the second airbag are fixedly provided on the front and rear sides of the upper part of the airbag seat; the third airbag and the fourth airbag are fixedly provided on the left and right sides of the upper part of the airbag seat.

5. The head fixation device for CT examination according to claim 1, characterized in that: An inflation port is fixedly provided on the outside of the first airbag, the second airbag, the third airbag and the fourth airbag respectively.

6. The head fixation device for CT examination according to claim 1, characterized in that: A sliding pile is fixedly arranged on the bottom of the airbag seat.

7. The head fixation device for CT examination according to claim 1, characterized in that: The lifting assembly includes: a lifting seat and a lifting airbag; a sliding groove is fixedly provided on the top of the lifting seat, and the airbag seat is slidably sleeved on the upper part of the lifting seat; the lifting airbag is fixedly provided on the upper part of the lifting seat; and an inflation port is fixedly provided on the outside of the lifting airbag.

8. The head fixation device for CT examination according to claim 1, characterized in that: The head pad, head side frame and shell are wrapped with soft bags on the outer surfaces.

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