Flexible head fixing seat for medical examination

Abstract

The invention relates to the technical field of medical examination equipment, and discloses a flexible head fixing seat for medical examination, which comprises a front fixing table and a rear fixing table, a movable plate is mounted on the top surface of the front fixing table, and a head fixer is arranged on the rear fixing table; the fluid bag is arranged in an inner cavity of the front fixing table, the center of the top of the fluid bag is fixed to a supporting leg at the bottom of the movable plate in a penetrating mode, damping fluid is arranged in the fluid bag, first liquid bags are arranged at the two ends in the fluid bag, and the first liquid bags are connected with the pump body through external connection pipes; the connecting frame is rotationally installed on the upper section of the positioner on the rear fixing table, the connecting frame is movably connected with the head fixator, and an adjuster used for adjusting angle deflection of the head fixator is further arranged on the rear fixing table. The flexible head fixing seat for medical examination is suitable for positioning the head of a patient, meanwhile, the head of the patient can move and reset adaptively in a small range conveniently, and the convenience of examination application and the stability of imaging are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical examination equipment, and particularly to a flexible head fixing seat for medical examination. Background Art

[0002] In medical examinations such as performing brain CT on patients in nuclear medicine, in order to improve the accuracy of medical examinations, patients need to stay in the instrument for a long time with their heads relatively stationary. By maintaining the head in a stationary state, it is possible to prevent the clarity and accuracy of the fused images from being adversely affected due to the swinging or repositioning of the patient's head during the examination.

[0003] In order to reduce the adverse imaging caused by the patient's frequent head repositioning problem and the unconscious swinging of the patient's head during the examination, in the existing medical examination process, some will set an inlaid positioning pillow to achieve the effect of fixing the head through the head positioning groove on it; however, in order to adapt to patients of different body types, the positioning pillow is generally elastically set. Although it can fix the patient's head, due to its wrapped head positioning, it is easy to cause discomfort of foreign body sensation in the patient's head. At the same time, when the patient's head shakes and swings, its limiting stability is insufficient, which will cause the patient's head to swing consciously or unconsciously during the examination, resulting in the head placement position not being effectively restored to the initial clearest state; There are also some that directly rigidly clamp and limit the patient's head on the left and right sides through a clamping fixator during the medical examination process. However, such clamping devices will not only cause a stronger foreign body sensation in the patient's head, but also cannot be slightly adjusted by itself when the patient's shoulders and neck are uncomfortable after keeping the head still for a long time, and the use effect is not good.

[0004] In view of the above problems, there is an urgent need to innovate and design on the basis of the original flexible head fixing seat for medical examination. Summary of the Invention

[0005] The purpose of the present invention is to provide a flexible head fixing seat for medical examination, so as to solve the problem that the existing head fixing seat for medical examination in the above background art can fix the patient's head during the examination, but it is easy to cause discomfort of foreign body sensation in the patient's head, and at the same time, its limiting stability is insufficient, resulting in the head placement position of the patient not being effectively restored to the initial clearest state after unconscious shaking.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A flexible head fixing seat for medical examination, including a front fixing table and a rear fixing table, wherein a movable plate is installed on the top surface of the front fixing table, and a head fixator is provided on the rear fixing table; It further includes: a fluid bladder disposed in the inner chamber of the front fixing platform. The center of the top of the fluid bladder is fixedly penetrated by the bottom legs of the movable plate, and a damping fluid is provided in the fluid bladder. First liquid sacs are provided at both ends inside the fluid bladder, and the first liquid sacs are connected to a pump body through external connecting pipes; A connecting frame is rotatably installed on the upper section of a locator on the rear fixing platform. The connecting frame is movably connected to the head fixator, and a regulator for adjusting the angular deflection of the head fixator is further provided on the rear fixing platform.

[0007] Preferably, the whole movable plate and the middle part of the front fixing platform are both arc-shaped. The movable plate is slidably connected to the front fixing platform, and the movable plate is used for head support.

[0008] Preferably, the fluid bladders are provided in one-to-one correspondence with the bottom legs of the movable plate. The fluid bladders are hermetically sealed as a whole, and the gaps at the connections between the fluid bladders and the elastic first liquid sacs are sealed.

[0009] Preferably, the elastic telescopic trajectory of the first liquid sac is coaxial with the horizontal central axis of the fluid bladder. The damping fluid inside the fluid bladder is a non-Newtonian fluid, and hydraulic oil is provided in the first liquid sac.

[0010] Preferably, the head fixator is arranged in an "X" shape. The connecting rotating shaft at the "X" shaped intersection of the head fixator is rotatably connected to the connecting frame in a horizontal plane, and the connecting frame and the locator are rotatably connected in a vertical projection plane.

[0011] Preferably, the middle section of the connecting frame is arranged in a hollowed-out manner, and a telescopic rod member is further provided therein. A push rod is hingedly installed between the output shaft of the telescopic rod member and the tail of the head fixator.

[0012] Preferably, the regulator is located directly below the "X" shaped intersection of the head fixator. A sliding member is fixed to the end of the connecting frame above the regulator; The lower end of the sliding member is arranged inside the regulator. Second liquid sacs are further provided on the left and right sides of the inner bottom of the regulator, and the second liquid sacs are fixed to the sliding member; Meanwhile, a non-Newtonian fluid is provided inside the regulator.

[0013] Preferably, an arc-shaped limiting strip is further fixed to the inner wall of the regulator. The limiting strip restricts the lifting of the sliding member and assists the sliding of the sliding member; Meanwhile, an elastic sheet for preventing the non-Newtonian fluid from leaking out is further provided on the top of the regulator.

[0014] Preferably, hydraulic oil is provided inside the second liquid sac, and the second liquid sac is connected to an external pump body through a pipeline.

[0015] Preferably, an auxiliary device is also fixed on the rear fixing table. The auxiliary device has the same shape as the regulator, and the inner wall of the bottom of the regulator is in sliding connection with the lower end of the extension frame at the bottom of the connecting frame in a fitting manner.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The flexible head fixing seat for medical examination is applicable to the head positioning of patients, and at the same time can facilitate the small-amplitude movement and reset of the patient's head, improving the convenience of examination application and the stability of imaging. The specific content is as follows: 1. When the patient's head is positioned by the head fixing device, the movable plate is used to support the patient's head. The bottom feet of the movable plate apply the non-Newtonian fluid in the fluid bladder through the fluid bladder. By using the gravity flow of the fluid limited in the fluid bladder, first, when the patient's shoulder and neck are stiff and need to move slightly, the patient can slightly rotate the neck to drive the movable plate to move synchronously. Moreover, when the neck does not rotate, the fluid will re-collect at the bottom of the fluid bladder due to its own gravity, achieving the effect of driving the movable plate and the patient's head to reset. Furthermore, after the patient's head is positioned and the movable plate supports the patient's head, the oil pressure inside the first liquid bladder in the fluid bladder can also be changed. Under the action of the deformation of the first liquid bladder squeezing the fluid, the fluid is used to apply an external force to the bottom feet of the movable plate, and by pushing the movable plate to move, the rotation control of the patient's positioned head under the support effect is achieved.

[0017] 2. The head fixing device is unfolded and closed through the telescopic rod member to achieve the clamping and positioning of both sides of the patient's head. Among them, the installation of the head fixing device on the connecting frame and the positioning device can fix the head and actively change the rotation amplitude of the head, improving the head stability and imaging forming effect. Furthermore, the rotation control of the telescopic rod member is realized by using the regulator, and the non-Newtonian fluid inside the positioning device is also used, enabling the patient to slightly control the rotation of the neck by himself to loosen the neck muscle state. Also, under the gravity reset effect of the non-Newtonian fluid, the rotated head fixing device and the connecting frame can be reset. At the same time, by changing the oil pressure inside the second liquid bladder, the rotation of the head fixing device and the patient's head is actively controlled further, improving the stability of the head placement state and the imaging forming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front structural schematic diagram of the present invention; Figure 2 It is a side structural schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the head fixing device of the present invention; Figure 4 It is a structural schematic diagram of the installation of the connecting frame and the positioning device of the present invention; Figure 5Schematic diagram of the front fixing platform structure of the present invention; Figure 6 Schematic diagram of the installation of the fluid sac of the present invention; Figure 7 Schematic diagram of the fluid sac structure of the present invention; Figure 8 Top view schematic diagram of the installation of the movable plate of the present invention; Figure 9 Bottom view schematic diagram of the installation of the movable plate of the present invention; Figure 10 Schematic diagram of the regulator structure of the present invention; Figure 11 Schematic diagram of the auxiliary structure of the present invention.

[0019] In the figure: 1, front fixing platform; 2, rear fixing platform; 3, movable plate; 4, fluid sac; 5, first liquid sac; 6, external connecting pipe; 7, head fixator; 701, telescopic member; 702, push rod; 8, connecting frame; 9, positioner; 10, regulator; 1001, auxiliary; 11, limit strip; 12, sliding member; 13, second liquid sac. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1: Please refer to Figures 1-11 , the present invention provides a technical solution: a flexible head fixing seat for medical examination, including a front fixing platform 1 and a rear fixing platform 2, wherein a movable plate 3 is installed on the top surface of the front fixing platform 1, and a head fixator 7 is arranged on the rear fixing platform 2; the whole movable plate 3 and the middle part of the front fixing platform 1 are both arc-shaped, the movable plate 3 is in a relatively sliding connection with the front fixing platform 1, and the movable plate 3 is used for head support; in this technical solution, the head fixator 7 is used to clamp and position the left and right sides of the patient's head, and after the head is fixed, the movable plate 3 supports the back of the patient's head.

[0022] In the above technical solution, the head fixator 7 is arranged in an "X" shape. The connecting rotating shaft at the "X" - shaped intersection of the head fixator 7 is rotatably connected to the connecting frame 8 in a horizontal plane, and the connecting frame 8 is rotatably connected to the locator 9 in a vertical projection plane; the middle section of the connecting frame 8 is arranged to be hollow, and a telescopic rod member 701 is also arranged therein. A push rod 702 is articulated between the output shaft of the telescopic rod member 701 and the tail of the head fixator 7; in this technical solution, in order to improve the safety during the inspection process, any component is made of a non - metallic material. To improve the strength of the component, a non - magnetic lightweight ceramic can be used, which has good stability and wear - resistant effect during use. The push rod 702 is extended and retracted by the introduction and export of oil fluid. During the extension and retraction process, the push rod 702 is used to control the opening and closing of the head fixator 7 to clamp the left and right sides of the patient's head. A clamping plate is articulated at the position of the head fixator 7 close to the patient's head to improve the stability of clamping the patient's head, and a flexible material is also provided on the clamping plate to improve the comfort of clamping.

[0023] This technical solution adopts as Figures 5-9 shown, and also includes: a fluid bladder 4, which is arranged in the inner cavity of the front fixing platform 1. The center of the top of the fluid bladder 4 is fixedly penetrated by the bottom support feet of the movable plate 3, and a damping fluid is provided in the fluid bladder 4. First liquid sacs 5 are arranged at both ends inside the fluid bladder 4. The first liquid sacs 5 are connected to a pump body through an external connecting pipe 6; the fluid bladder 4 and the bottom support feet of the movable plate 3 are arranged in one - to - one correspondence. Among them, the fluid bladder 4 is integrally sealed, and the gap at the connection between the fluid bladder 4 and the elastic first liquid sac 5 is sealed; the elastic expansion and contraction trajectory of the first liquid sac 5 is coaxial with the horizontal central axis of the fluid bladder 4. Among them, the damping fluid inside the fluid bladder 4 is a non - Newtonian fluid, and hydraulic oil is provided in the first liquid sac 5; a friction pad is arranged at the joint between the movable plate 3 and the patient's head to improve the contact friction force between the two and protect the patient's head at the same time.

[0024] When the patient's head is fixed by the head fixator 7 and the head is supported on the movable plate 3 as described above, the head fixator 7 is movably arranged. When the patient keeps the head and neck still for a long time and feels uncomfortable, the patient can slowly rotate the neck slightly. Since the movement amplitude is small and the external force is applied slowly, the movable plate 3 can move slowly under the action of friction. Although its bottom support feet are inserted into the non - Newtonian fluid in the fluid bladder 4, it will not limit its slow movement. When the patient rotates the neck greatly, its movement is restricted to prevent the movement amplitude from being too large, which is not conducive to subsequent resetting and affects imaging; at the same time, after the head and the movable plate 3 move slightly, when the patient no longer applies force to the neck, due to the non - Newtonian fluid inside the fluid bladder 4 being limited, it freely flows back to the original state under the action of gravity. During this process, the fluid synchronously drives the movable plate 3 and the patient's head to reset, facilitating subsequent inspection and imaging.

[0025] Further, during the above inspection process, when it is found that the deflection of the patient's head affects the imaging, by changing the hydraulic pressure inside the first liquid sac 5 and under the action of the pump body, the corresponding first liquid sac 5 expands or contracts, which pushes the non-Newtonian fluid inside the fluid sac 4 to flow, thereby driving the movable plate 3 and the patient's head to reset or perform the required head rotation adjustment control.

[0026] In this technical solution, also as Figures 1-4 and Figure 10 and Figure 11 shown, the connecting frame 8 is rotatably installed on the upper section of the locator 9 on the rear fixing table 2. The connecting frame 8 is movably connected to the head fixator 7, and a regulator 10 for adjusting the angular deflection of the head fixator 7 is also provided on the rear fixing table 2; the connecting frame 8 preliminarily positions the head fixator 7, but does not affect the use of the head fixator 7. At the same time, due to the function of the locator 9, the connecting frame 8 and the head fixator 7 are installed above the rear fixing table 2, and after installation, the connecting frame 8 and the head fixator 7 can rotate along the central axis of the connecting frame 8, which is convenient for the rotation adjustment control of the patient's head.

[0027] Meanwhile, further, in this technical solution, the regulator 10 is located directly below the "X"-shaped intersection of the head fixator 7. A sliding member 12 is fixed to the end of the connecting frame 8 above the regulator 10; the lower end of the sliding member 12 is arranged inside the regulator 10. Second liquid sacs 13 are also provided on the left and right sides of the inner bottom of the regulator 10, and the second liquid sacs 13 are fixed to the sliding member 12; at the same time, non-Newtonian fluid is provided inside the regulator 10; an arc-shaped limiting strip 11 is also fixed to the inner wall of the regulator 10, and the limiting strip 11 restricts the lifting of the sliding member 12 and assists the sliding of the sliding member 12; at the same time, an elastic sheet for preventing the non-Newtonian fluid from leaking is also provided on the top of the regulator 10; with the regulator 10 arranged in this way, the non-Newtonian fluid inside it, due to its own gravity and damping external force, keeps the sliding member 12 at the end of the connecting frame 8 in a limited position. When the patient needs to freely move the neck slightly, it drives the head fixator 7 and the connecting frame 8 to rotate. During this process, the sliding member 12 moves in the damped non-Newtonian fluid. The sliding member 12 is arc-shaped, and its movement is also along an arc-shaped trajectory. The center of the arc of this arc-shaped trajectory is located on the relative rotation axis of the connecting frame 8 and the locator 9. Therefore, the patient's head can only move slightly and slowly. At the same time, after the external force applied to the neck is removed, the non-Newtonian fluid flows freely under the action of gravity, and can drive the head fixator 7 and the head to reset by driving the sliding member 12, preventing the patient's head from affecting the imaging due to involuntary swinging and changing the positioning.

[0028] Meanwhile, in the above technical solution, the lower end of the sliding member 12 is disposed inside the regulator 10. On the left and right sides of the inner bottom of the regulator 10, there are also provided second liquid sacs 13. The second liquid sacs 13 are fixed to the sliding member 12. Hydraulic oil is provided inside the second liquid sacs 13. The second liquid sacs 13 are connected to an external pump body through pipelines. After the movement amplitude of the patient's head is too large and affects the examination, the second liquid sacs 13 expand and contract due to the change in the internal oil pressure, thereby driving the sliding member 12, the connecting frame 8, and the head fixator 7 to reset, so as to facilitate the stable and efficient completion of this examination.

[0029] Embodiment 2: In this technical solution, it is further disclosed that an auxiliary device 1001 is further fixed on the rear fixing table 2. The auxiliary device 1001 has the same shape as the regulator 10, and the inner bottom wall of the regulator 10 and the lower end of the extension frame at the bottom of the connecting frame 8 are in a fitting sliding connection. The setting of the auxiliary device 1001 enables the connecting frame 8 to rotate stably.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flexible head fixing base for medical examination, comprising a front fixing platform (1) and a rear fixing platform (2). An activity plate (3) is installed on the top surface of the front fixing platform (1), and a head fixator (7) is arranged on the rear fixing platform (2); It is characterized in that It further comprises: A fluid bladder (4) is arranged in the internal cavity of the front fixing platform (1). The center of the top of the fluid bladder (4) is fixedly penetrated by the bottom feet of the activity plate (3). There is damping fluid in the fluid bladder (4). First liquid sacs (5) are arranged at both ends inside the fluid bladder (4). The first liquid sacs (5) are connected to a pump body through external connecting pipes (6); A connecting frame (8) is rotatably installed on the upper section of a locator (9) on the rear fixing platform (2). The connecting frame (8) is movably connected to the head fixator (7). And a regulator (10) for adjusting the angular deflection of the head fixator (7) is further arranged on the rear fixing platform (2).

2. The flexible head fixing base for medical examination according to claim 1, characterized in that: The whole activity plate (3) and the middle part of the front fixing platform (1) are both arc-shaped. The activity plate (3) is in a relatively sliding connection with the front fixing platform (1). The activity plate (3) is used for head support.

3. The head flexible fixing seat for medical examination according to claim 1 or 2, characterized in that: The fluid bladders (4) are arranged in one-to-one correspondence with the bottom feet of the activity plate (3). The whole fluid bladder (4) is sealed. The gap at the connection between the fluid bladder (4) and the elastic first liquid sac (5) is sealed.

4. The head flexible fixing base for medical examination according to claim 3, wherein: The elastic telescopic trajectory of the first liquid sac (5) is coaxial with the horizontal central axis of the fluid bladder (4). The damping fluid inside the fluid bladder (4) is a non-Newtonian fluid. And there is hydraulic oil in the first liquid sac (5).

5. The head flexible fixing seat for medical examination according to claim 1, characterized in that: The head fixator (7) is arranged in an "X" shape. The connecting rotating shaft at the "X" shaped intersection of the head fixator (7) is in a rotational connection with the connecting frame (8) in the horizontal plane. The connecting frame (8) and the locator (9) are in a rotational connection in the vertical projection plane.

6. The head flexible fixing base for medical examination according to claim 5, wherein: The middle section of the connecting frame (8) is arranged in a hollowed-out manner. An expansion rod member (701) is further arranged therein. A push rod (702) is installed in a hinged manner between the output shaft of the expansion rod member (701) and the tail of the head fixator (7).

7. The head flexible fixing base for medical examination according to claim 5, characterized in that: The regulator (10) is located directly below the "X" shaped intersection of the head fixator (7). A sliding member (12) is fixed to the end of the connecting frame (8) above the regulator (10); The lower end of the sliding member (12) is arranged inside the regulator (10). Second liquid sacs (13) are further arranged on the left and right sides of the inner bottom of the regulator (10). The second liquid sacs (13) are fixed to the sliding member (12); At the same time, non-Newtonian fluid is arranged inside the regulator (10).

8. The head flexible fixing seat for medical examination according to claim 7, characterized in that: An arc-shaped limiting strip (11) is further fixed to the inner wall of the regulator (10). The limiting strip (11) limits the lifting of the sliding member (12) and assists the sliding of the sliding member (12). At the same time, an elastic sheet for preventing the non-Newtonian fluid from leaking out is further arranged at the top of the regulator (10).

9. The head flexible fixing seat for medical examination according to claim 7, characterized in that: There is hydraulic oil inside the second liquid sac (13). The second liquid sac (13) is connected to an external pump body through a pipeline.

10. The head flexible fixing seat for medical examination according to claim 1 or 7, characterized in that: An auxiliary device (1001) is also fixed on the rear fixing table (2). The auxiliary device (1001) has the same shape as the regulator (10), and the inner wall of the bottom of the regulator (10) is in sliding connection with the lower end of the extension frame at the bottom of the connecting frame (8) in a fitting manner.

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