Head and face wearable adjustable pressure continuous loading device

Abstract

The invention provides a head and face wearable adjustable pressure continuous loading device, which belongs to the field of medical equipment and comprises a head, neck and chest fixator, a force application device, a connecting device and an AMI air bag type pressure sensor. The force applying device is connected with 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 with the AMI host and transmits a pressure signal to the AMI host. The device has the advantages that 1, the relative position between the tested head and face part and the force application device is fixed and stable, and human influence is avoided; 2, the force application device can continuously apply stable pressure to fixed point positions or areas of the head and the face of a person for a long time; 3, adjustable force application conditions are needed: the force application size, the force application position and direction, and the shape and the size of a force application probe; and 4, the wearing scene of a real head-mounted product, such as surface pressure and multi-point / multi-area simultaneous force application, can be simulated as much as possible.

Description

Technical Field

[0001] The invention relates to the field of medical equipment, and in particular to a wearable adjustable pressure continuous loading device for the head and face. Background Art

[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 wearer's head and face, because the contact pressure between the product and human skin affects the comfortable experience of use.

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

[0004] In the existing pressure sensitivity test, the examiner uses a pressure device with a display to slowly increase the pressure on a specific area or point on the tester's head and face, and obtains the pressure value when the tester just feels discomfort or pain. This value represents the pressure threshold, and the smaller the force value, the more sensitive the area or point is to pressure perception. Based on this, pressure sensitivity research is carried out. The test mainly involves two tools: one is a fixing device, and the other is a force-applying device. The fixing device is a rigid bracket, usually a tripod with a headrest, a massage chair, etc., to ensure the stability of the head during the force application process. The force-applying device is a handheld pressure device. Currently on the market are Mecmesin AFG pressure gauges, Isda push-pull force gauges, etc., which are controlled by the examiner, display the pressure value in real time and transmit it to the computer. However, the existing pressure sensitivity test has the following defects: 1. In the current test scheme, the fixing device and the force-applying device are not continuous. Therefore, this type of test requires not only the subject to strictly control the head to avoid shaking, but also the examiner to strictly control the hand-held stable force. In the real test scenario, these are two important factors that lead to test errors.

[0005] 2. The existing test scheme only targets the situation where pressure causes discomfort to the head and face in a short period of time, without considering the impact of time. However, in the real wearing experience scenario, people need to wear the product for a long time, and time is an important factor that cannot be ignored.

[0006] 3. The force probes currently under study have a fixed shape, a small size, and apply force at a single point. However, head-mounted products on the market are symmetrical and cover multiple areas at the same time. Considering that the pressure sensitivity threshold may be affected by the size, shape, and force application method of the pressure probe, the existing testing method is also unreasonable. Summary of the invention

[0007] 1. Technical issues to be resolved The purpose of the present invention is to provide a wearable adjustable pressure continuous loading device for the head and face and a testing method. Wearing comfort is an important dimension for evaluating wearable products for the head and face, among which the pressure sensitivity study of the head and face is crucial to the comfort of head-mounted products. Currently, there is a lack of tools and methods on the market to test the changes in human pressure sensitivity over a sustained period of time. The present invention aims to provide a wearable adjustable pressure continuous loading device for the head and face for the pressure sensitivity study of the head and face.

[0008] (II) Technical solution In response to the problems existing in the above-mentioned existing methods and technologies, the present invention is a wearable adjustable pressure continuous loading device and testing method for the head and face, which can realize continuous pressure sensitivity testing of the human head and face in a laboratory environment, and achieve the following purposes: 1. Ensure that the relative position between the subject's head and face and the force-applying device is fixed and stable to avoid human influence; 2. The force-applying device can continuously apply stable pressure to fixed points or areas of the human head and face for a long time; 3. Adjustable force conditions are required: force size, force position and direction, shape and size of the force-applying probe; 4. Simulate the wearing scenarios of real head-mounted products as much as possible, such as face pressure and simultaneous force application at multiple points / areas.

[0009] A wearable adjustable pressure continuous loading device for the head and face comprises a head, neck and chest fixator, a force applying device, a connecting device and an AMI airbag pressure sensor; the force applying device is connected to the head, neck and chest fixator via the connecting device, the force applying device applies pressure to the AMI airbag pressure sensor, and the AMI airbag pressure sensor is connected to an AMI host to transmit a pressure signal to the AMI host.

[0010] Preferably, the head, neck and chest fixator includes an anterior vertebrae device and a posterior vertebrae device; the anterior vertebrae device includes a chin support, an upper sternum fixator and a lower sternum fixator located in the front, the upper sternum fixator is located below the chin support and connected thereto, the lower sternum fixator is located below the upper sternum fixator and connected thereto; the posterior vertebrae device includes an occipital support and a back fixator located in the back, the back fixator is located below the occipital support and connected thereto, the chin support is connected to the occipital support, the upper sternum fixator is connected to the occipital support, and the lower sternum fixator is connected to the back fixator.

[0011] Preferably, the chin support and the upper sternum fixer are connected and fixed by the first magnesium alloy bracket and the second magnesium alloy bracket, the upper sternum fixer and the lower sternum fixer are connected and fixed by the third magnesium alloy bracket, the occipital support and the back fixer are connected and fixed by the fourth magnesium alloy bracket and the fifth magnesium alloy bracket, the chin support and the occipital support are connected by the first Velcro strap and the second Velcro strap, the upper sternum fixer and the occipital support are connected by the third Velcro strap and the fourth Velcro strap, and the lower sternum fixer and the back fixer are connected by the fifth Velcro strap and the sixth Velcro strap.

[0012] Preferably, the connecting device includes 4 unidirectional C-type clamps, 4 bidirectional C-type clamps, and 4 long rigid rods; the bidirectional C-type clamp is a double-headed C-type clamp including two C-type clamps, the 4 unidirectional C-type clamps are evenly distributed and installed on the force-applying device, and the 4 bidirectional C-type clamps are evenly distributed and installed on the head, neck and chest fixator, and 4 long rigid rods are installed between the 4 unidirectional C-type clamps and the 4 bidirectional C-type clamps to realize the connection between the force-applying device and the head, neck and chest fixator.

[0013] Preferably, 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; The rotatable track includes an outer track and an inner track, and the outer track is connected to the inner track at two sides by screws and nuts respectively and is installed on the fixed track; The force-applying module includes a slider, a rotary block and a force-applying probe; the rotary block includes two rotary block components, the inside of the rotary block and the outside of the rotary block are connected, two identical first hemispheres and second hemispheres, a first nut is buried inside the first hemisphere and the second hemisphere, and then they are glued and fixed into a free sphere, a second nut and a free sphere are buried between the inside of the rotary block and the outside of the rotary block of the two rotary block components, and are glued and fixed, and finally a long screw and a top screw are screwed into the nut hole to fix, and the force-applying probe is fixed at one end of the long screw; the slider is fixed on a fixed track, and the slider includes a lower L-shaped slider and an upper U-shaped slider spliced ​​together The slider body is an integrated body, and the first side nut, the first side screw combination, and the second side nut, the second side screw combination are correspondingly bonded and fixed on both sides of the upper U-shaped slider, and the first bottom nut, the first bottom screw combination, the second bottom nut, and the second bottom screw combination are symmetrically bonded and fixed on the lower L-shaped slider. The lower L-shaped slider is fixed on the rotatable track by the first bottom nut, the first bottom screw combination, the second bottom nut, and the second bottom screw, and the upper U-shaped slider is connected to the inside and outside of the rotary block by the first side nut, the first side screw combination, the second side nut, and the second side screw combination.

[0014] Preferably, the AMI airbag pressure sensor includes an airbag placed on the skin, a gas transmission pipeline connected to the airbag, a metal joint of the gas transmission pipeline connected to a corresponding interface of the AMI host, a sticker fixing the gas transmission pipeline, and the force probe of the force-applying device is aligned with the airbag to apply pressure to the skin.

[0015] First, use the inflator to deflate, calibrate, zero, and re-inflate the airbag sensor, and then connect the metal connector of the airbag sensor to the corresponding interface of the AMI host. After that, align the airbag end of the airbag sensor with the point / area to be measured, and use a sticker to stick the gas transmission pipeline of the AMI airbag pressure sensor to the skin. Then use the force probe to align the AMI airbag pressure sensor and apply pressure to the skin.

[0016] The head, neck and chest fixator is a postoperative rehabilitation brace suitable for conservative treatment and activity restriction of cervical and upper thoracic fractures. Relative to the human body structure, the present application divides the fixator into two parts: anterior vertebrae device and posterior vertebrae device. It uses a chin support, an occipital support, an upper sternum fixator, a lower sternum fixator, Velcro straps, etc. to fix the subject's head, neck, and chest so that they cannot move at all. This ensures that the relative position between the subject's head and face and the force-applying device is fixed and stable to avoid human influence.

[0017] Directions: 1. The occipital support of the posterior vertebra device of the fixator is placed at the back of the subject's head, close to the subject's back; the chin support of the anterior vertebra device is placed at the chin of the subject, close to the subject's chest.

[0018] 2. Adjust each Velcro strap on the fixator and tighten it so that the subject's head, neck, and chest are completely fixed and cannot move.

[0019] Beneficial effects of the present invention: The present invention meets the requirements of the continuous loading pressure sensitivity test experiment for head-mounted products, is easy for the experimenter to operate, can achieve precise control of the pressure value, and continuously and stably apply pressure. It includes: 1. The force-applying device's force-applying probe has precise sensing and control, and meets the experimental test requirements of diversification and restoration of real wearing scenarios; the force-applying device can continuously apply stable pressure to fixed points or areas on the human head and face for a long time; 2. The combination and connection method of the head, neck and chest fixator, the force-applying device and the connecting device can fix the subject's head, neck and chest, and fix the relative position between the head and face and the force-applying device to apply continuous and stable pressure to avoid the influence of human factors; 3. Experimental method for continuous loading pressure sensitivity test of head-mounted products. The device disclosed in the present invention is used to perform continuous loading pressure sensitivity test on the human head and face.

[0020] 4. It realizes precise control of the force position, force direction, and pressure value, as well as detachable, replaceable, and freely designable force probe conditions; it meets the diverse and realistic wearing scenarios of head-mounted products, such as surface pressure, multi-point / multi-area simultaneous force, etc.; it is a more ideal and reasonable pressure sensitivity test experimental method for continuous loading of head-mounted products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0022] Figure 1 This is the overall structural diagram of the device; Figure 2 It is a side view of the head, neck and chest fixator; Figure 3 This is a front view of the head, neck and chest fixator; Figure 4 This is a back view of the head, neck and chest fixator; Figure 5 This is the structural diagram of a one-way C-type clamp; Figure 6 This is the structural diagram of the bidirectional C-clamp; Figure 7 It is a structural exploded view of the force applying device; Figure 8 It is a structural exploded view of the rotary block and the sliding block in the force applying device; Fig. 9 It is a structural exploded view of a slider in a force-applying device; Fig.10 It is a combined diagram of a rotary block and a sliding block in a force-applying device; Fig.11 A structural diagram of a state of the force applying device; Fig.12 is a structural diagram of another state of the force applying device; Fig.13 Schematic diagram of the AMI airbag pressure sensor installed on the skin; Among them: 1-chin support, 2-upper sternum fixator, 3-lower sternum fixator, 4-occipital support, 5-back fixator, 6a-first Velcro strap, 6b-second Velcro strap, 7a-third Velcro strap, 7b-fourth Velcro strap, 8a-first magnesium alloy bracket, 8b-second magnesium alloy bracket, 9a-fifth Velcro strap, 9b-sixth Velcro strap, 10-third magnesium alloy bracket, 11a-fourth magnesium alloy bracket, 11b-fifth magnesium alloy bracket, 11-fixed track, 12-rotatable track, 12a-outer track, 12c-inner track, 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-swivel block, 14a-inside of the swing block, 14b-outside of the swing block, 14d-first hemisphere, 14f-second hemisphere, 14e-first nut, 14g-second nut, 14c-long screw, 14h-top screw, 15-force probe, 16-airbag, 17-sticker, 18-gas transmission pipeline. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0024] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0025] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0028] The present invention is described in further detail below by way of examples. Example

[0029] A wearable adjustable pressure continuous loading device for the head and face comprises a head, neck and chest fixator, a force applying device, a connecting device and an AMI airbag pressure sensor; the force applying device is connected to the head, neck and chest fixator via the connecting device, the force applying device applies pressure to the AMI airbag pressure sensor, and the AMI airbag pressure sensor is connected to an AMI host to transmit a pressure signal to the AMI host.

[0030] In this embodiment, the head, neck and chest fixator includes a front vertebra device and a back vertebra device; the front vertebra device includes a chin support 1, an upper sternum fixator 2 and a lower sternum fixator 3 located in the front, the upper sternum fixator 2 is located below the chin support 1 and connected thereto, the lower sternum fixator 3 is located below the upper sternum fixator 2 and connected thereto, the back vertebra device includes an occipital support 4 and a back fixator 5 located in the back, the back fixator 5 is located below the occipital support 4 and connected thereto, the chin support 1 is connected to the occipital support 4, the upper sternum fixator 2 is connected to the occipital support 4, and the lower sternum fixator 3 is connected to the back fixator 5.

[0031] In this embodiment, the chin support 1 and the upper sternum fixer 2 are connected and fixed by the first magnesium alloy bracket 8a and the second magnesium alloy bracket 8b, the upper sternum fixer 2 and the lower sternum fixer 3 are connected and fixed by the third magnesium alloy bracket 10, the occipital support 4 and the back fixer 5 are connected and fixed by the fourth magnesium alloy bracket 11a and the fifth magnesium alloy bracket 11b, the chin support 1 and the occipital support 4 are connected by the first Velcro strap 6a and the second Velcro strap 6b, the upper sternum fixer 2 and the occipital support 4 are connected by the third Velcro strap 7a and the fourth Velcro strap 7b, and the lower sternum fixer 3 and the back fixer 5 are connected by the fifth Velcro strap 9a and the sixth Velcro strap 9b.

[0032] In this embodiment, the connecting device includes 4 unidirectional C-type clamps, 4 bidirectional C-type clamps, and 4 long rigid rods; the bidirectional C-type clamp is a double-headed C-type clamp including two C-type clamps, the 4 unidirectional C-type clamps are evenly distributed and installed on the force-applying device, and the 4 bidirectional C-type clamps are evenly distributed and installed on the head, neck and chest fixator. 4 long rigid rods are installed between the 4 unidirectional C-type clamps and the 4 bidirectional C-type clamps to realize the connection between the force-applying device and the head, neck and chest fixator.

[0033] In this 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; The rotatable track 12 includes an outer track 12a and an inner track 12c. The outer track 12a and the inner track 12c are connected at both sides by screws 12d and nuts 12b respectively and are installed on the fixed track 11. The force-applying module includes a slider 13, a rotary block 14 and a force-applying probe 15; the rotary block 14 includes two rotary block components, a rotary block interior 14a and a rotary block exterior 14b connected together, two identical first hemispheres 14d and second hemispheres 14f, a first nut 14e is buried inside the first hemisphere 14d and the first hemisphere 14f, and then they are bonded and fixed to form a free sphere, a second nut 14g and a free sphere are buried between the two rotary block components, the rotary block interior 14a and the rotary block exterior 14b, and are bonded and fixed, and finally a long screw 14c and a top screw 14h are screwed into the nut hole to be fixed, and the force-applying probe 15 is fixed at one end of the long screw 14c; the slider 13 is fixed on the fixed rail 11, and the slider 13 includes a lower L-shaped slider and an upper U-shaped slider spliced ​​into a The slider body 13a of the body has a first side nut 13d, a first side screw 13c combination, and a second side nut 13e, a second side screw 13b combination, which are correspondingly adhered and fixed on both sides of the upper U-shaped slider; the first bottom nut 13f, a first bottom screw 13g combination, and a second bottom nut 13i, a second bottom screw 13h combination are symmetrically adhered and fixed on the lower L-shaped slider; the lower L-shaped slider is fixed to the rotatable track 12 by the first bottom nut 13f, the first bottom screw 13g combination, the second bottom nut 13i, and the second bottom screw 13h; the upper U-shaped slider is connected to the inner part 14a of the rotary block and the outer part 14b of the rotary block by the first side nut 13d, the first side screw 13c combination, the second side nut 13e, and the second side screw 13b combination.

[0034] In this embodiment, the AMI airbag pressure sensor includes an airbag 16 placed on the skin, a gas transmission pipe 18 connected to the airbag 16, a metal joint of the gas transmission pipe 18 connected to the corresponding interface of the AMI host, a sticker 17 fixes the gas transmission pipe 18, and the force probe 15 of the force-applying device is aimed at the airbag 16 to apply pressure to the skin.

[0035] First, use the inflator to deflate, calibrate, zero, and re-inflate the airbag sensor, and then connect the metal connector of the airbag sensor to the corresponding interface of the AMI host. After that, align one end of the airbag 16 of the airbag sensor with the point / area to be measured, and stick the gas transmission pipe 18 of the AMI airbag pressure sensor on the skin with the sticker 17. Then use the force probe 15 to align the AMI airbag pressure sensor and apply pressure to the skin.

[0036] The head, neck and chest fixator is a postoperative rehabilitation brace suitable for conservative treatment and activity restriction of cervical and upper thoracic fractures. Relative to the human body structure, the present application divides the fixator into two parts: anterior vertebrae device and posterior vertebrae device. It uses a chin support, an occipital support, an upper sternum fixator, a lower sternum fixator, Velcro straps, etc. to fix the subject's head, neck, and chest so that they cannot move at all. This ensures that the relative position between the subject's head and face and the force-applying device is fixed and stable to avoid human influence.

[0037] Directions: 1. Estimate the appropriate approximate force application height, slide the force application device up and down along the rigid long rod in the vertical direction, adjust the force application device (relative to the subject's head and face) to the appropriate height, and tighten the C-type clamp to fix the position of the force application device.

[0038] 2. The airbag 16 of the AMI airbag pressure sensor is attached to the point / area on the subject's head and face that needs to be measured.

[0039] 3. Corresponding to the measurement points / areas on the subject's head and face, estimate the appropriate approximate force application position, rotate the force application module along the rotatable track 12, adjust the position of the force application module, and tighten and fix the two sides of the rotatable track 12 after the adjustment is completed.

[0040] 4. Estimate the appropriate approximate force direction, adjust the direction of the rotary block 4 of the force module, and tighten the screws of the two side nuts on the slider.

[0041] 5. Adjust the direction of the long screw 14c of the rotary block 4 of the force-applying module, and connect the free sphere in the middle to rotate freely (similar to a pan / tilt head, with the nut buried in the ball) until the long screw is perpendicular to the human facial skin, and tighten the top screw 14h of the rotary block 4 to fix it.

[0042] 6. Install or replace the force probe 15 onto the long screw of the force module (the user can redesign the probe shape, size and material according to different research purposes and test requirements, and the nut is buried inside the force probe).

[0043] 7. Rotate the long screw 14c, and the long screw 14c connected to the force probe 15 gradually approaches the human head and face, and the pressure of the force probe 15 on the airbag 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 stabilizes.

[0044] 8. According to different experimental objectives and requirements, set the duration of continuous pressure loading. During the test, the pressure on the subject remains stable, so as to obtain the objective or subjective data of the subject at this point / area and this pressure over time.

[0045] 9. If the measuring point / area is located in the top area of ​​the subject's head, before step 1, rotate the rotatable track 12 to a suitable angle and tighten the screws on both sides of the rotatable track 12 to fix it.

[0046] 10. In addition, the device supports simultaneous force application at multiple points, that is, adding one or more force application modules to support the simulation of more real experimental scenarios, such as symmetrical force application on the left and right sides of the human head and face.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0048] The above describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claim involved.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Wearable adjustable pressure continuous loading device for head and face, characterized by: It includes a head, neck and chest fixer, a force-applying device, a connecting device and an AMI airbag pressure sensor; the force-applying device is connected to the head, neck and chest fixer through the connecting device, the force-applying device applies pressure to the AMI airbag pressure sensor, and the AMI airbag pressure sensor is connected to the AMI host to transmit the pressure signal to the AMI host.

2. The wearable adjustable pressure continuous loading device for head and face according to claim 1, characterized in that: The head, neck and chest fixator comprises an anterior vertebra device and a posterior vertebra device; the anterior vertebra device comprises a chin support (1), an upper sternum fixator (2) and a lower sternum fixator (3) located in the front, the upper sternum fixator (2) being located below the chin support (1) and connected thereto, the lower sternum fixator (3) being located below the upper sternum fixator (2) and connected thereto; the posterior vertebra device comprises an occipital support (4) and a back fixator (5) located in the back, the back fixator (5) being located below the occipital support (4) and connected thereto, the chin support (1) being connected to the occipital support (4), the upper sternum fixator (2) being connected to the occipital support (4), and the lower sternum fixator (3) being connected to the back fixator (5).

3. The wearable adjustable pressure continuous loading device for head and face according to claim 2, characterized in that: The chin support (1) and the upper sternum fixer (2) are connected and fixed via a first magnesium alloy bracket (8a) and a second magnesium alloy bracket (8b); the upper sternum fixer (2) and the lower sternum fixer (3) are connected and fixed via a third magnesium alloy bracket (10); the occipital support (4) and the back fixer (5) are connected and fixed via a fourth magnesium alloy bracket (11a) and a fifth magnesium alloy bracket (11b); the chin support (1) and the occipital support (4) are connected via a first Velcro strap (6a) and a second Velcro strap (6b); the upper sternum fixer (2) and the occipital support (4) are connected via a third Velcro strap (7a) and a fourth Velcro strap (7b); and the lower sternum fixer (3) and the back fixer (5) are connected via a fifth Velcro strap (9a) and a sixth Velcro strap (9b).

4. The wearable adjustable pressure continuous loading device for head and face according to claim 1, characterized in that: The connecting device includes 4 unidirectional C-type clamps, 4 bidirectional C-type clamps, and 4 long rigid rods; the bidirectional C-type clamp is a double-headed C-type clamp including two C-type clamps, the 4 unidirectional C-type clamps are evenly distributed and installed on the force-applying device, and the 4 bidirectional C-type clamps are evenly distributed and installed on the head, neck and chest fixator, and 4 long rigid rods are installed between the 4 unidirectional C-type clamps and the 4 bidirectional C-type clamps to realize the connection between the force-applying device and the head, neck and chest fixator.

5. The wearable adjustable pressure continuous loading device for head and face according to claim 1, characterized in that: 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 outer track (12a) and the inner track (12c) are connected at two sides thereof by screws (12d) and nuts (12b) and are mounted on the fixed track (11); The force application module comprises a slider (13), a rotary block (14) and a force application probe (15); the rotary block (14) comprises two rotary block components, the inner part (14a) of the rotary block and the outer part (14b) of the rotary block connected to each other, two identical first hemispheres (14d) and second hemispheres (14f), a first nut (14e) is buried inside the first hemisphere (14d) and the second hemisphere (14f), and then the first nut (14e) is glued and fixed to form a free sphere, a second nut (14g) and the free sphere are buried between the inner part (14a) and the outer part (14b) of the two rotary block components, and then glued and fixed, and finally a long screw (14c) and a top screw (14h) are screwed into the nut hole to be fixed, and the force application probe (15) is fixed at one end of the long screw (14c); the slider (13) is fixed on the fixed track (11), and the slider (13) comprises a lower L-shaped slider and an upper U-shaped slider spliced ​​to form a An integrated slider body (13a) has a first side nut (13d), a first side screw (13c) combination, and a second side nut (13e), a second side screw (13b) combination bonded and fixed on both sides of the upper U-shaped slider, and a first bottom nut (13f), a first bottom screw (13g) combination, and a second bottom nut (13i), a second bottom screw (13h) combination bonded and fixed symmetrically on the lower L-shaped slider; the lower L-shaped slider is fixed to the rotatable track (12) by means of the first bottom nut (13f), the first bottom screw (13g) combination, the second bottom nut (13i), and the second bottom screw (13h); and the upper U-shaped slider is connected to the inside (14a) and the outside (14b) of the rotary block by means of the first side nut (13d), the first side screw (13c) combination, the second side nut (13e), and the second side screw (13b) combination.

6. The wearable adjustable pressure continuous loading device for head and face according to claim 5, characterized in that: The AMI airbag pressure sensor comprises an airbag (16) placed on the skin, a gas transmission pipeline (18) connected to the airbag (16), a metal joint of the gas transmission pipeline (18) connected to a corresponding interface of the AMI host, a sticker (17) fixing the gas transmission pipeline (18), and a force applying probe (15) of the force applying device aligning with the airbag (16) to apply pressure to the skin.

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