Head-wearing adjustable pressure sustained loading device

Abstract

The application provides a head and face wearable adjustable pressure sustained loading device and belongs to the field of medical equipment, and comprises a head, neck and chest fixer, a force applying device, a connecting device and an AMI air bag type pressure sensor; the force applying device is connected with the head, neck and chest fixer through the connecting device, the force applying device applies pressure to the AMI air bag type pressure sensor, and the AMI air bag type pressure sensor is connected with an AMI host to transmit a pressure signal to the AMI host. The application has the advantages that 1, the relative position between the head and face of a test subject and the force applying device is fixed and stable, and human influence is avoided; 2, the force applying device can continuously and for a long time apply stable pressure to the fixed point or region of the head and face of a person; 3, the force applying conditions that need to be adjusted are as follows: the force applying size, the force applying position and direction, the force applying probe shape and size; and 4, the wearing scene of a real head-mounted product is simulated as much as possible, such as face pressure and multi-point / multi-region simultaneous force applying.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical equipment, in particular to a head and face wearable adjustable pressure sustained loading device. BACKGROUND

[0002] In the process of designing and developing wearable products, designers and engineers need to consider human senses and ergonomics due to the differences in the head and face of the wearer, because the contact pressure of the product with the human skin has an impact on the comfort experience of use.

[0003] Head-mounted products need to partially or completely cover the head, face and neck of the wearer and generate sustained pressure. The wearer will feel pressure and even pain after wearing the product for a long time, which is an important factor affecting the comfort experience of wearing. Therefore, it is necessary for designers and engineers to understand the pressure sensitivity of different areas of the head, face and neck to develop methods to reduce discomfort caused by pressure and ensure better ergonomics and design.

[0004] The existing pressure sensitivity test uses a visible pressure device by the main tester to slowly increase the pressure on a specific area or point of the head and face of the test subject, and obtains the pressure value when the test subject just feels discomfort or pain. The value represents the pressure threshold, and the smaller the force value, the more sensitive the area or point to pressure perception. Based on this, pressure sensitivity research is carried out. The test mainly involves two tools: a fixed device and a force application device. The fixed device is a steel support, usually a three-legged stool with a headrest, a massage chair, etc., to ensure the stability of the head during the force application process. The force application device is a handheld pressure device, such as Mecmesin AFG pressure gauge, Yisida push-pull force gauge, etc., controlled by the main tester, which displays the pressure value in real time and transmits it to the computer. However, the existing pressure sensitivity test has the following defects:

[0005] 1. In the current test scheme, the fixed device and the force application device are not continuous. Therefore, such tests not only require the test subject to strictly control the head to avoid shaking, but also require the main tester to strictly control the handheld stable force application. In real test scenarios, these are two important factors that cause test errors.

[0006] 2. The existing test scheme only considers the discomfort caused by pressure on the head and face in a short period of time, without considering the influence of time. However, in real wearing experience scenarios, people need to wear products for a long time, and time is an important influencing factor that cannot be ignored.

[0007] 3. The current research force probe maintains a fixed shape and small size, and is a single-point force. However, the head-mounted products on the market are symmetrical on both sides and cover multiple areas at the same time. Considering that the pressure sensitivity threshold may be affected by the size and shape of the pressure probe and the force application method, the existing test method also lacks rationality. SUMMARY

[0008] (I) Technical problems to be solved

[0009] The purpose of the present application is to provide a head and face wearable adjustable pressure sustained loading device and testing method, and wearing comfort is an important dimension for evaluating head and face wearable products, and the study of the pressure sensitivity of the head and face is crucial for the comfort of head-mounted products. There is a lack of tools and methods for testing the changes in pressure sensitivity of humans over time in the current market, and the present application aims to provide a head and face wearable adjustable pressure sustained loading device for the study of the pressure sensitivity of the head and face.

[0010] (II) Technical solutions

[0011] In view of the problems existing in the above-mentioned existing methods and technologies, the present application provides a head and face wearable adjustable pressure sustained loading device and testing method, which can realize the sustained pressure sensitivity test of the head and face of a person in a laboratory environment, and achieve the following purposes: 1. The relative position between the head and face of the subject and the force applying device is fixed and stable, avoiding human influence; 2. The force applying device can continuously and stably apply pressure to the fixed point or area of the head and face of a person for a long time; 3. The force applying conditions need to be adjustable: the force applying size, position and direction, force applying probe shape and size; 4. To simulate the wearing scene of real head-mounted products as much as possible, such as face pressure, multi-point / multi-area simultaneous force application.

[0012] The head and face wearable adjustable pressure sustained loading device comprises a head, neck and chest fixator, a force applying device, a connecting device and an AMI air bag type pressure sensor; the force applying device is connected to the head, neck and chest fixator through the connecting device, the force applying device applies pressure to the AMI air bag type pressure sensor, and the AMI air bag type pressure sensor is connected to an AMI host to transmit the pressure signal to the AMI host.

[0013] As a preferred, the head, neck and chest fixator comprises a front vertebral device and a rear vertebral device; the front vertebral device comprises a lower jaw support located in the front, an upper sternum fixator and a lower sternum fixator, the upper sternum fixator is located below the lower jaw support and connected thereto, the lower sternum fixator is located below the upper sternum fixator and connected thereto, the rear vertebral device comprises a pillow support and a back fixator located in the rear, the back fixator is located below the pillow support and connected thereto, the lower jaw support is connected to the pillow support, the upper sternum fixator is connected to the pillow support, and the lower sternum fixator is connected to the back fixator.

[0014] As preferred, the lower jaw holder is connected and fixed with the upper sternum fixator through the first magnesium alloy support and the second magnesium alloy support, the upper sternum fixator and the lower sternum fixator are connected and fixed through the third magnesium alloy support, the occipital bone holder and the back fixator are connected and fixed through the fourth magnesium alloy support and the fifth magnesium alloy support, the lower jaw holder and the occipital bone holder are connected through the first magic tape belt and the second magic tape belt, the upper sternum fixator and the occipital bone holder are connected through the third magic tape belt and the fourth magic tape belt, and the lower sternum fixator and the back fixator are connected through the fifth magic tape belt and the sixth magic tape belt.

[0015] As preferred, the connecting device comprises four one-way C-shaped clamps, four two-way C-shaped clamps and four steel long rods; the two-way C-shaped clamp is a double-head C-shaped clamp comprising two C-shaped clamps, the four one-way C-shaped clamps are evenly distributed and installed on the force applying device, the four two-way C-shaped clamps are evenly distributed and installed on the head-neck-chest fixator, and the four steel long rods are installed between the four one-way C-shaped clamps and the four two-way C-shaped clamps to realize the connection between the force applying device and the head-neck-chest fixator.

[0016] As preferred, the force applying device comprises a fixed track, a rotatable track installed on the fixed track and a force applying module installed on the rotatable track.

[0017] The rotatable track comprises an outer track and an inner track, and the two sides of the outer track and the inner track are connected and installed on the fixed track through screws and nuts;

[0018] The force applying module comprises a sliding block, a rotating block and a force applying probe; the rotating block comprises two rotating block components connected by the inside and the outside of the rotating block, two identical first hemispheres and second hemispheres, a first nut buried in the inside of the first hemisphere and the second hemisphere and adhered and fixed as a free sphere, a second nut buried between the inside and the outside of the two rotating block components and the free sphere and adhered and fixed, and a long screw and a top screw screwed into the nut hole and fixed, with the force applying probe fixed at one end of the long screw; the sliding block is fixed on the fixed track, and the sliding block comprises a sliding block main body spliced by a lower L-shaped sliding block and an upper U-shaped sliding block, a first side edge nut, a first side edge screw combination and a second side edge nut, a second side edge screw combination adhered and fixed on the two sides of the upper U-shaped sliding block, and a first bottom nut, a first bottom screw combination and a second bottom nut, a second bottom screw combination adhered and fixed on the lower L-shaped sliding block, the lower L-shaped sliding block is fixed on the rotatable track through the first bottom nut, the first bottom screw combination and the second bottom nut, the second bottom screw, and the upper U-shaped sliding block is connected with the inside and the outside of the rotating block through the first side edge nut, the first side edge screw combination and the second side edge nut, the second side edge screw combination.

[0019] As preferred, the AMI air bag type pressure sensor comprises an air bag placed on the skin, a gas transmission pipeline connected with the air bag, a metal joint of the gas transmission pipeline connected with a corresponding interface of an AMI host, a sticker fixing the gas transmission pipeline, and a force applying probe of the force applying device applying pressure to the skin.

[0020] Firstly, the air bag sensor is deflated, calibrated, zeroed, and re-inflated using an inflating device, and then the metal joint of the air bag sensor is connected with a corresponding interface of an AMI host. Thereafter, one end of the air bag of the air bag sensor is aligned with a point / region to be measured, and the gas transmission pipeline of the AMI air bag type pressure sensor is fixed on the skin by a sticker. Then, the force applying probe is used to align the AMI air bag type pressure sensor and apply pressure to the skin.

[0021] The head-neck-chest fixator is a postoperative rehabilitation aid, which is suitable for conservative treatment and activity restriction of cervical and upper thoracic vertebral fractures. Relative to the body structure of a person, the fixator is divided into a front vertebral device and a rear vertebral device. The head, neck and chest of a subject are fixed by using a lower jaw support, a pillow support, an upper sternum fixator, a lower sternum fixator and magic tape belts, so that the subject cannot move at all. Thus, the relative position between the head and face of the subject and the force applying device is fixed and stable, and human factors are avoided.

[0022] Method for use:

[0023] 1. The pillow support of the rear vertebral device of the fixator is placed at the back of the head of the subject and tightly attached to the back of the subject, and the lower jaw support of the front vertebral device is placed at the lower jaw of the subject and tightly attached to the front chest of the subject.

[0024] 2. Each magic tape belt on the fixator is adjusted to be tightly attached, so that the head, neck and chest of the subject are completely fixed and cannot move.

[0025] Advantages of the present application:

[0026] The present application meets the needs of continuous loading pressure sensitivity test experiments for head-mounted products, is easy to operate by experimenters, can achieve precise control of pressure values, and can continuously and stably apply pressure. It includes:

[0027] 1. Precise perception control of the force applying probe of the force applying device, and meeting the needs of diversified and realistic wearing scene experimental tests; the force applying device can continuously and stably apply pressure to the fixed point or region of the head and face of a person for a long time;

[0028] 2. Combination and connection mode of the head-neck-chest fixator, the force applying device and the connecting device, to fix the head, neck and chest of a subject, fix the relative position between the head and face of the subject and the force applying device, and apply continuous and stable pressure, so as to avoid the influence of human factors;

[0029] 3. The head-mounted product-oriented continuous loading pressure sensitivity test method. The head-mounted product-oriented continuous loading pressure sensitivity test method is realized by the device disclosed in the present application.

[0030] 4. The force application position, force application direction and pressure value are precisely controlled, and the force application probe is detachable, replaceable and freely designed, which meets the diversified and real head-mounted product wearing scenarios, such as surface pressure and multi-point / multi-area simultaneous force application, and realizes the more ideal and reasonable head-mounted product-oriented continuous loading pressure sensitivity test method. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the present application, the drawings needed in some embodiments of the present application will be briefly introduced as follows. Obviously, the drawings in the following description are only some drawings of the embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not limited to the actual size, actual process, actual time sequence, etc. of the products, methods, signals, etc. involved in the embodiments of the present application.

[0032] Figure 1 It is a whole structure diagram of the device.

[0033] Figure 2 It is a side view of the head-neck-chest fixator.

[0034] Figure 3 It is a front view of the head-neck-chest fixator.

[0035] Figure 4 It is a back view of the head-neck-chest fixator.

[0036] Figure 5 It is a structure diagram of the one-way C-shaped clamp.

[0037] Figure 6 It is a structure diagram of the two-way C-shaped clamp.

[0038] Figure 7 It is a structure exploded view of the force application device.

[0039] Figure 8 It is a structure exploded view of the rotating block and sliding block in the force application device.

[0040] Figure 9 It is a structure exploded view of the sliding block in the force application device.

[0041] Figure 10 It is a combination diagram of the rotating block and sliding block in the force application device.

[0042] Figure 11A structural diagram of one state of the force applying device;

[0043] Figure 12 A structural diagram of another state of the force applying device;

[0044] Figure 13 A schematic diagram of the AMI air bag type pressure sensor mounted on the skin;

[0045] Wherein: 1 - lower jaw holder, 2 - upper sternum fixer, 3 - lower sternum fixer, 4 - occipital holder, 5 - back fixer, 6a - first magic tape bandage, 6b - second magic tape bandage, 7a - third magic tape bandage, 7b - fourth magic tape bandage, 8a - first magnesium alloy support, 8b - second magnesium alloy support, 9a - fifth magic tape bandage, 9b - sixth magic tape bandage, 10 - third magnesium alloy support, 11a - fourth magnesium alloy support, 11b - fifth magnesium alloy support, 11 - fixed rail, 12 - rotatable rail, 12a - outer rail, 12c - inner rail, 12d - screw, 12b - nut, 13 - slider, 13a - slider body, 13c - first side screw, 13d - first side nut, 13e - second side nut, 13b - second side screw, 13f - first bottom nut, 13g - first bottom screw, 13i - second bottom nut, 13h - second bottom screw, 14 - rotating block, 14a - rotating block interior, 14b - rotating block exterior, 14d - first hemisphere, 14f - second hemisphere, 14e - first nut, 14g - second nut, 14c - long screw, 14h - top screw, 15 - force applying probe, 16 - air bag, 17 - sticker, 18 - gas transmission pipeline. DETAILED DESCRIPTION

[0046] In order to make the technical personnel in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should be within the scope of protection of the present application.

[0047] In the description of the embodiments of the present application, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can include at least one of the features explicitly or implicitly. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0048] In this application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", and "fixed" are to be construed broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0049] In this application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0050] The technical solutions in the embodiments of the present application will be described clearly and completely in the embodiments of the present application in combination with the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0051] The present application will be further described in detail by the following examples. Embodiment

[0052] The head and face wearable adjustable pressure sustained loading device comprises a head, neck and chest fixer, a force applying device, a connecting device and an AMI air bag type pressure sensor. The force applying device is connected with the head, neck and chest fixer through the connecting device, the force applying device applies pressure to the AMI air bag type pressure sensor, and the AMI air bag type pressure sensor is connected with the AMI host to transmit the pressure signal to the AMI host.

[0053] In the embodiment, the head, neck and chest fixer comprises a front vertebral device and a rear vertebral device. The front vertebral device comprises a lower jaw support 1 located in front, an upper sternum fixer 2 and a lower sternum fixer 3. The upper sternum fixer 2 is located below the lower jaw support 1 and connected therewith. The lower sternum fixer 3 is located below the upper sternum fixer 2 and connected therewith. The rear vertebral device comprises a pillow support 4 located in the rear and a back fixer 5. The back fixer 5 is located below the pillow support 4 and connected therewith. The lower jaw support 1 is connected with the pillow support 4. The upper sternum fixer 2 is connected with the pillow support 4. The lower sternum fixer 3 is connected with the back fixer 5.

[0054] In the embodiment, the lower jaw support 1 and the upper sternum fixator 2 are connected and fixed by the first magnesium alloy support 8a and the second magnesium alloy support 8b, the upper sternum fixator 2 and the lower sternum fixator 3 are connected and fixed by the third magnesium alloy support 10, the occipital bone support 4 and the back fixator 5 are connected and fixed by the fourth magnesium alloy support 11a and the fifth magnesium alloy support 11b, the lower jaw support 1 and the occipital bone support 4 are connected by the first magic tape bandage 6a and the second magic tape bandage 6b, the upper sternum fixator 2 and the occipital bone support 4 are connected by the third magic tape bandage 7a and the fourth magic tape bandage 7b, and the lower sternum fixator 3 and the back fixator 5 are connected by the fifth magic tape bandage 9a and the sixth magic tape bandage 9b.

[0055] In the embodiment, the connecting device includes four one-way C-shaped clamps, four two-way C-shaped clamps, and four steel long rods. The two-way C-shaped clamp is a double-head C-shaped clamp including two C-shaped clamps. The four one-way C-shaped clamps are evenly distributed and installed on the force applying device, and the four two-way C-shaped clamps are evenly distributed and installed on the head-neck-chest fixator. The four steel long rods are installed between the four one-way C-shaped clamps and the four two-way C-shaped clamps to realize the connection between the force applying device and the head-neck-chest fixator.

[0056] In the embodiment, the force applying device includes a fixed track 11, a rotatable track 12 installed on the fixed track 11, and a force applying module installed on the rotatable track 12.

[0057] The rotatable track 12 includes an outer track 12a and an inner track 12c. The two sides of the outer track 12a and the inner track 12c are connected by screws 12d and nuts 12b respectively and installed on the fixed track 11.

[0058] The force applying module comprises a slider 13, a rotating block 14 and a force applying probe 15; the rotating block 14 comprises two rotating block components, a rotating block interior 14a and a rotating block exterior 14b connected together, two same first hemispheres 14d and second hemispheres 14f, a first nut 14e embedded inside the first hemispheres 14d and the first hemispheres 14f and adhered and fixed as a free sphere, a second nut 14g embedded between the rotating block interior 14a and the rotating block exterior 14b and the free sphere and adhered and fixed, and finally a long screw 14c and a top screw 14h screwed into the nut hole position and fixed, with the force applying probe 15 fixed at one end of the long screw 14c; the slider 13 is fixed on a fixed track 11, the slider 13 comprises a slider main body 13a which is integrated by a lower L-shaped slider and an upper U-shaped slider, the first side edge nut 13d, the first side edge screw 13c combination and the second side edge nut 13e, the second side edge screw 13b combination are adhered and fixed on both sides of the upper U-shaped slider, the first bottom nut 13f, the first bottom screw 13g combination and the second bottom nut 13i, the second bottom screw 13h combination are adhered and fixed on the lower L-shaped slider symmetrically, the lower L-shaped slider is fixed on the rotatable track 12 through the first bottom nut 13f, the first bottom screw 13g combination and the second bottom nut 13i, the second bottom screw 13h, and the upper U-shaped slider is connected with the rotating block interior 14a and the rotating block exterior 14b through the first side edge nut 13d, the first side edge screw 13c combination and the second side edge nut 13e, the second side edge screw 13b combination.

[0059] In the embodiment, the AMI air bag type pressure sensor comprises an air bag 16 placed on the skin, a gas transmission pipeline 18 connected with the air bag 16, a metal joint of the gas transmission pipeline 18 connected with a corresponding interface of an AMI host, a sticker 17 fixing the gas transmission pipeline 18, and the force applying probe 15 of the force applying device aiming at the air bag 16 to apply pressure to the skin.

[0060] Firstly, the air bag sensor is deflated, calibrated, zeroed and re-inflated using an inflating device, and then a metal joint of the air bag sensor is connected with a corresponding interface of an AMI host. Thereafter, one end of the air bag 16 of the air bag sensor is aimed at a point / region to be measured, and the gas transmission pipeline 18 of the AMI air bag type pressure sensor is adhered and fixed on the skin through the sticker 17. Then, the force applying probe 15 is used to aim at the AMI air bag type pressure sensor to apply pressure to the skin.

[0061] The head and neck chest fixator is a postoperative rehabilitation aid, which is suitable for conservative treatment and activity restriction of cervical and upper thoracic vertebral fracture. Relative to the body structure of a person, the fixator is divided into a front vertebral device and a rear vertebral device. The head, neck and chest of a test subject are fixed by using a lower jaw support, a pillow support, an upper sternum fixator, a lower sternum fixator, magic tape belts and the like, so that the test subject cannot move at all. Thus, the relative position between the head and face of the test subject and the force applying device is fixed and stable, and human influence is avoided.

[0062] Method of use:

[0063] 1. Estimate the appropriate approximate force applying height, and slide the force applying device along the rigid long rod in the vertical direction, adjust the force applying device (relative to the head and face of the test subject) to the appropriate height, and tighten the C-shaped clamp to fix the position of the force applying device.

[0064] 2. The air bag 16 of the AMI air bag type pressure sensor is attached to the point / region to be measured on the head and face of the test subject.

[0065] 3. Estimate the appropriate approximate force applying position corresponding to the measurement point / region on the head and face of the test subject, rotate the force applying module along the rotatable rail 12, adjust the position of the force applying module, and then tighten the two sides of the rotatable rail 12 to fix them.

[0066] 4. Estimate the appropriate approximate force applying direction, adjust the direction of the rotating block 4 of the force applying module, and tighten the screws of the two side nuts on the sliding block.

[0067] 5. Adjust the direction of the long screw 14c of the rotating block 4 part of the force applying module, connect the middle free sphere to rotate freely (similar to a gimbal, and the nut is embedded in the sphere), and continue until the long screw is perpendicular to the skin of the face, and then tighten the top screw 14h of the rotating block 4 part.

[0068] 6. Install or replace the force applying probe 15 to the long screw of the force applying module (the user can redesign the shape, size and material of the probe according to different research purposes and test requirements, and the nut is embedded in the force applying probe).

[0069] 7. Rotate the long screw 14c, and the long screw 14c connected to the force applying probe 15 gradually approaches the head and face of the person, and the pressure of the force applying probe 15 on the air bag 16 gradually increases; the deeper the long screw 14c goes, the greater the pressure, until the sensor digital display reaches the expected pressure value, and the pressure value is stable.

[0070] 8. According to different experimental goals and requirements, set the duration of pressure loading. During the test, the pressure borne by the test subject remains stable and unchanged, so as to obtain objective or subjective data of the test subject at the point / region and under the pressure with respect to time.

[0071] 9. If the measuring point / region is located in the top area of the head of the subject, before step 1, the rotatable track 12 is rotated to a suitable angle, and the screws on both sides of the rotatable track 12 are tightened to fix.

[0072] 10. In addition, the device supports simultaneous force application at multiple points, i.e. adding one or more force application modules to support simulation of more real experimental scenarios, such as force application on the left and right symmetrical sides of the face of the head of a person.

[0073] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0074] The above describes the basic principles and main features of the present application and the advantages of the present application. It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0075] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A head and face mounted adjustable pressure sustained loading device, characterized by: The application relates to a head-neck-chest fixing device, a force applying device, a connecting device and an AMI air bag type pressure sensor. The connecting device comprises four one-way C-shaped clamps, four two-way C-shaped clamps and four steel long rods; the two-way C-shaped clamp is a double-head C-shaped clamp comprising two C-shaped clamps; the four one-way C-shaped clamps are evenly distributed and installed on the force applying device; the four two-way C-shaped clamps are evenly distributed and installed on the head-neck-chest fixing device; and the four steel long rods are installed between the four one-way C-shaped clamps and the four two-way C-shaped clamps to realize the connection between the force applying device and the head-neck-chest fixing device. The force applying device comprises a fixed track (11), a rotatable track (12) installed on the fixed track (11) and a force applying module installed on the rotatable track (12). The rotatable track (12) comprises an outer track (12a) and an inner track (12c); the two sides of the outer track (12a) and the inner track (12c) are connected by screws (12d) and nuts (12b) and are installed on the fixed track (11). The force applying module comprises a sliding block (13), a rotating block (14) and a force applying probe (15); the rotating block (14) comprises two rotating block assemblies, a rotating block inner portion (14a) and a rotating block outer portion (14b) are connected to form the rotating block (14), two same first hemispheres (14d) and second hemispheres (14f) are adhered and fixed into a free sphere after first nuts (14e) are embedded in the first hemispheres (14d) and the second hemispheres (14f), a second nut (14g) and the free sphere are embedded between the rotating block inner portion (14a) and the rotating block outer portion (14b) and are adhered and fixed, long screws (14c) and top screws (14h) are screwed into the nut hole positions and are fixed, and the force applying probe (15) is fixed at one end of the long screws (14c); the sliding block (13) is fixed on the fixed track (11); the sliding block (13) comprises a sliding block main body (13a) which is integrated by a lower L-shaped sliding block and an upper U-shaped sliding block, first side edge nut (13d), first side edge screw (13c) and second side edge nut (13e), second side edge screw (13b) are adhered and fixed on the two sides of the upper U-shaped sliding block, first bottom nut (13f), first bottom screw (13g) and second bottom nut (13i), second bottom screw (13h) are symmetrically adhered and fixed on the lower L-shaped sliding block, the lower L-shaped sliding block is fixed on the rotatable track (12) through the first bottom nut (13f), the first bottom screw (13g) and the second bottom nut (13i), the second bottom screw (13h), and the upper U-shaped sliding block is connected with the rotating block inner portion (14a) and the rotating block outer portion (14b) through the first side edge nut (13d), the first side edge screw (13c), the second side edge nut (13e) and the second side edge screw (13b). AMI air bag type pressure sensor includes air bag (16) placed on the skin, gas transmission pipeline (18) connected with the air bag (16), metal joint of gas transmission pipeline (18) connects the corresponding interface of AMI host, the sticker (17) fixes the gas transmission pipeline (18), the force applying device force applying probe (15) is aligned with the air bag (16) to the skin.

2. The head and face wearable adjustable pressure sustained loading device according to claim 1, wherein: The head and neck chest fixator comprises a front vertebra device and a rear vertebra device; the front vertebra device comprises a lower jaw support (1) located in front, an upper sternum fixator (2) and a lower sternum fixator (3), the upper sternum fixator (2) is located below the lower jaw support (1) and connected therewith, the lower sternum fixator (3) is located below the upper sternum fixator (2) and connected therewith, the rear vertebra device comprises a pillow support (4) located in the rear and a back fixator (5), the back fixator (5) is located below the pillow support (4) and connected therewith, the lower jaw support (1) is connected with the pillow support (4), the upper sternum fixator (2) is connected with the pillow support (4), and the lower sternum fixator (3) is connected with the back fixator (5).

3. The head and face wearable adjustable pressure sustained loading device of claim 2, wherein: The lower jaw support (1) and the upper sternum fixator (2) are connected and fixed through the first magnesium alloy support (8a) and the second magnesium alloy support (8b), the upper sternum fixator (2) and the lower sternum fixator (3) are connected and fixed through the third magnesium alloy support (10), the pillow support (4) and the back fixator (5) are connected and fixed through the fourth magnesium alloy support (11a) and the fifth magnesium alloy support (11b), the lower jaw support (1) and the pillow support (4) are connected through the first magic tape band (6a) and the second magic tape band (6b), the upper sternum fixator (2) and the pillow support (4) are connected through the third magic tape band (7a) and the fourth magic tape band (7b), and the lower sternum fixator (3) and the back fixator (5) are connected through the fifth magic tape band (9a) and the sixth magic tape band (9b).

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