A human head torque acquisition device

Abstract

This invention provides a human head torque acquisition device, comprising: an inner helmet, an outer helmet, a helmet support device, and a force measuring bed; the inner helmet is disposed inside the outer helmet, and helmet-mounted X-axis pressure sensors, Y-axis pressure sensors, and Z-axis pressure sensors are respectively installed at positions corresponding to the ears, top of the head, and back of the head between the inner and outer helmets for acquiring pressure in the X-axis, Y-axis, and Z-axis directions; the outer helmet is connected to the force measuring bed via the helmet support device; helmet-mounted X-axis torque sensors, Y-axis torque sensors, and Z-axis torque sensors are respectively installed at positions corresponding to the ears, top of the head, and back of the head for acquiring torque in the X-axis, Y-axis, and Z-axis directions. This device accurately measures the torque of the patient's head, thereby more precisely guiding the physicist to apply appropriate fixation force to the patient.

Description

Technical Field

[0001] This invention belongs to the field of biomedical technology, and specifically relates to a human head torque acquisition device. Background Technology

[0002] With the development of medical technology, the treatment methods for head tumors such as meningiomas, gliomas, and pituitary tumors are constantly increasing and improving. In addition to traditional neurosurgery, radiation therapy methods such as Gamma Knife, CyberKnife, and Proton Knife are continuously providing patients with better treatment options. While radiation therapy avoids the risks of craniotomy, it requires precise restraint of the patient's limbs to achieve more effective treatment results. Although current restraint devices can immobilize patients to a certain degree, the restraint methods and strengths of current universal restraint devices are not suitable for all patients. Each patient's physical tolerance, psychological factors, and other factors vary to varying degrees, resulting in differences in positioning accuracy. For example, sometimes the subject may move their head due to breathing, heartbeat, or various discomforts, requiring adjustments to the restraint strength accordingly. Therefore, individualized treatment plans need to be studied to analyze the impact of individual differences on treatment accuracy and effectiveness evaluation. However, currently there is no device for specifically collecting the torque of the human head, and there is no relevant research on the impact of specific torsional data of the human head on the positioning accuracy of radiation therapy. Summary of the Invention

[0003] To address the problems existing in the prior art, the present invention provides a human head torque acquisition device that accurately measures the torque of a patient's head, thereby providing more precise guidance to physicists to apply appropriate fixation force to the patient.

[0004] This invention is achieved through the following technical solution:

[0005] A human head torque acquisition device includes: an inner helmet, an outer helmet, a helmet support device, and a force measuring bed; the inner helmet is disposed inside the outer helmet, and an X-axis pressure sensor, a Y-axis pressure sensor, and a Z-axis pressure sensor are respectively installed between the inner and outer helmets at positions corresponding to the ears, the top of the head, and the back of the head; the X-axis pressure sensor, the Y-axis pressure sensor, and the Z-axis pressure sensor are used to acquire pressure in the X-axis direction, the Y-axis direction, and the Z-axis direction, respectively;

[0006] The outer helmet is connected to the force measuring bed via a helmet support device; the helmet support device is equipped with an outer helmet X-axis torque sensor, an outer helmet Y-axis torque sensor, and an outer helmet Z-axis torque sensor at positions corresponding to the ears, the top of the head, and the back of the head, respectively. The outer helmet X-axis torque sensor, outer helmet Y-axis torque sensor, and outer helmet Z-axis torque sensor are used to collect torque in the X-axis direction, Y-axis direction, and Z-axis direction, respectively.

[0007] Preferably, the fixed end and the force-receiving end of the X-axis pressure sensor inside the helmet are connected to the corresponding positions of the inner helmet and the outer helmet, respectively; the fixed end and the force-receiving end of the Y-axis pressure sensor inside the helmet are connected to the corresponding positions of the inner helmet and the outer helmet, respectively; and the fixed end and the force-receiving end of the Z-axis pressure sensor inside the helmet are connected to the corresponding positions of the inner helmet and the outer helmet, respectively.

[0008] Preferably, the helmet support device includes a helmet bracket; the positions on both sides of the outer helmet corresponding to the ear area are rotatably connected to the helmet bracket, and the position on one side of the outer helmet corresponding to the ear area is rotatably connected to the helmet bracket via a bearing and an X-axis torque end cap, the X-axis torque end cap is connected to the fixed end of the outer X-axis torque sensor of the helmet, and the force-receiving end of the outer X-axis torque sensor of the helmet is connected to the helmet bracket.

[0009] Furthermore, the helmet support device also includes a torque arm; a bracket connecting shaft is provided at the position corresponding to the top of the helmet bracket, the bracket connecting shaft is rotatably connected to the torque arm through a bearing, the end of the bracket connecting shaft is connected to a Y-axis torque end cap, the Y-axis torque end cap is connected to the fixed end of the external Y-axis torque sensor of the helmet, and the force-receiving end of the external Y-axis torque sensor of the helmet is connected to the torque arm.

[0010] Furthermore, the helmet support device also includes a Z-axis bracket, and a torque arm connecting shaft is provided at the bottom of the torque arm. The torque arm connecting shaft is rotatably connected to the Z-axis bracket through a bearing. A Z-axis torque end cap is connected to the end of the torque arm connecting shaft. The Z-axis torque end cap is connected to the fixed end of the external Z-axis torque sensor of the helmet. The force-receiving end of the external Z-axis torque sensor of the helmet is connected to the Z-axis bracket. The Z-axis bracket is connected to a force measuring bed.

[0011] Furthermore, the X-axis torque end cap is fixedly connected to the outer helmet by bolts.

[0012] Furthermore, the other side of the outer helmet, corresponding to the ear area, is rotatably connected to the helmet frame via a support shaft and bearings.

[0013] Furthermore, the support shaft is fixedly connected to the outer helmet by bolts.

[0014] Preferably, the inner helmet includes an inner helmet body and a helmet tightening strap; the two ends of the helmet tightening strap are respectively connected to both sides of the inner helmet body.

[0015] Preferably, the inner helmet includes an inner helmet body, and three sensor mounting platforms are provided on the outer surface of the inner helmet body. An X-axis pressure sensor, a Y-axis pressure sensor, and a Z-axis pressure sensor are respectively mounted on the three sensor mounting platforms.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention relates to a human head torque acquisition device, which includes an X-axis pressure sensor, a Y-axis pressure sensor, and a Z-axis pressure sensor installed at different positions between the inner and outer helmets. These sensors are used to measure the translational pressure P in the left-right direction (X-axis). X Translational pressure P in the head-to-feet direction (Y-axis) Y Translational pressure P in the ventral-dorsal direction (Z-axis) Z The device is equipped with three external helmet torque sensors: an X-axis torque sensor, a Y-axis torque sensor, and a Z-axis torque sensor. These sensors are used to collect torque along the X, Y, and Z axes, respectively. The torque can be calculated from the collected translational pressure and torque. Therefore, during use, the device accurately measures the torque on the patient's head, allowing the physicist to more precisely guide the application of appropriate immobilization force based on this torque. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional diagram of a human head torque acquisition device (including a human body model) according to the present invention;

[0020] Figure 2 This is a three-dimensional diagram of a human head torque acquisition device (including a coordinate system) according to the present invention;

[0021] Figure 3 This invention relates to a three-dimensional human head torque acquisition device. Figure 1 ;

[0022] Figure 4 This invention relates to a three-dimensional human head torque acquisition device. Figure 2 ;

[0023] Figure 5This is an exploded view of a human head torque acquisition device according to the present invention;

[0024] Figure 6 This is a front view of a human head torque acquisition device according to the present invention;

[0025] Figure 7 This is an enlarged view of the installation of the external X-axis torque sensor of the helmet according to the present invention;

[0026] Figure 8 for Figure 6 Sectional view of AA;

[0027] Figure 9 This is an installation diagram of the X-axis pressure sensor inside the helmet of the present invention;

[0028] Figure 10 for Figure 6 BB section view;

[0029] Figure 11 This is a rear view of a human head torque acquisition device according to the present invention.

[0030] Figure 12 This is a bottom view of a human head torque acquisition device according to the present invention.

[0031] In the diagram: Inner helmet 1, Inner helmet body 1-1, Sensor mounting platform 1-2, Helmet tightening strap 1-3, Helmet inner X-axis pressure sensor 2-1, Helmet inner Y-axis pressure sensor 2-2, Helmet inner Z-axis pressure sensor 2-3, Helmet outer X-axis torque sensor 2-4, Helmet outer Y-axis torque sensor 2-5, Helmet outer Z-axis torque sensor 2-6, Outer helmet 3, Support shaft 4, First bearing 5, X-axis torque end cap 6, Helmet bracket 7, Second bearing 8, Y-axis torque end cap 9, Torque arm 10, Third bearing 11, Z-axis bracket 12, Z-axis torque end cap 13, Force measuring bed 14, Force measuring instrument 15. Detailed Implementation

[0032] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0033] It should be noted that the process equipment or apparatus not specifically mentioned in the following embodiments are all conventional equipment or apparatus in the art.

[0034] It should be noted that the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or apparatuses. Furthermore, unless otherwise stated, the numbering of each method step is merely a convenient tool for identifying each method step, and not intended to limit the order of the method steps or define the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0035] Furthermore, it should be noted that the terms "first," "second," etc., used in this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In addition, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements.

[0036] refer to Figure 1-5 The human head torque acquisition device of the present invention includes an inner helmet 1, an outer helmet 3, a helmet support device, a force measuring bed 14, and a force measuring instrument 15. The inner helmet 1 is disposed inside the outer helmet 3. An internal X-axis pressure sensor 2-1, an internal Y-axis pressure sensor 2-2, and an internal Z-axis pressure sensor 2-3 are respectively installed between the inner helmet 1 and the outer helmet 3 at positions corresponding to the ears, the top of the head, and the back of the head. The internal X-axis pressure sensor 2-1, internal Y-axis pressure sensor 2-2, and internal Z-axis pressure sensor 2-3 are used to collect pressure in the X-axis, Y-axis, and Z-axis directions, respectively. The fixed end and the force-receiving end of the internal X-axis pressure sensor 2-1 are connected to corresponding positions on the inner helmet 1 and the outer helmet 3. The fixed end and the force-receiving end of the internal Y-axis pressure sensor 2-2 are connected to corresponding positions on the inner helmet 1 and the outer helmet 3. The fixed end and the force-receiving end of the internal Z-axis pressure sensor 2-3 are connected to corresponding positions on the inner helmet 1 and the outer helmet 3.

[0037] The outer helmet 3 is connected to the force measuring bed 14 via a helmet support device. The helmet support device is equipped with an external X-axis torque sensor 2-4, an external Y-axis torque sensor 2-5, and an external Z-axis torque sensor 2-6 at positions corresponding to the ears, the top of the head, and the back of the head, respectively. These sensors are used to collect torque data along the X, Y, and Z axes, respectively.

[0038] The helmet-mounted X-axis pressure sensor 2-1, helmet-mounted Y-axis pressure sensor 2-2, helmet-mounted Z-axis pressure sensor 2-3, helmet-mounted X-axis torque sensor 2-4, helmet-mounted Y-axis torque sensor 2-5, and helmet-mounted Z-axis torque sensor 2-6 are all connected to the force gauge 15.

[0039] In some embodiments of the present invention, the inner helmet 1 is made of a flexible soft material and contains a sponge layer inside to secure the human head. The inner helmet 1 includes an inner helmet body 1-1, three sensor mounting platforms 1-2, and a helmet tightening strap 1-3. The helmet tightening strap 1-3 is connected at both ends to the two sides of the inner helmet body 1-1 to further secure the head. Simultaneously, the three sensor mounting platforms 1-2 on the inner helmet 1 are respectively equipped with an X-axis pressure sensor 2-1, a Y-axis pressure sensor 2-2, and a Z-axis pressure sensor 2-3 to measure pressure in the X, Y, and Z axes.

[0040] In some embodiments of the present invention, the helmet support device includes a helmet bracket 7. The left side of the outer helmet 3, corresponding to the ear area, is rotatably connected to the corresponding position on the helmet bracket 7 via an X-axis torque end cap 6 and two first bearings 5. The X-axis torque end cap 6 is fixedly connected to the outer helmet 3 with bolts, thus supporting the outer helmet 3 on the helmet bracket 7, allowing the left side of the outer helmet 3 and the left side of the helmet bracket 7 to rotate freely. The X-axis torque end cap 6 is connected to the fixed end of the helmet's external X-axis torque sensor 2-4, and the force-receiving end of the helmet's external X-axis torque sensor 2-4 is connected to the helmet bracket 7, thereby measuring the torque in the X-axis direction.

[0041] The right side of the outer helmet 3, corresponding to the ear, is rotatably connected to the helmet bracket 7 via a support shaft 4 and two first bearings 5. The support shaft 4 is fixedly connected to the outer helmet 3 by bolts, so that the outer helmet 3 is supported and connected to the helmet bracket 7 via the support shaft 4, allowing the right side of the outer helmet 3 and the right side of the helmet bracket 7 to be in a free rotation state.

[0042] The helmet bracket 7 has a bracket connecting shaft at its top. This connecting shaft is rotatably connected to a torque arm 10 via two second bearings 8, allowing the torque arm 10 to support the helmet bracket 7. A Y-axis torque end cap 9 is connected to the end of the connecting shaft. This end cap 9 is connected to the fixed end of a Y-axis torque sensor 2-5 located outside the helmet. The force-bearing end of the Y-axis torque sensor 2-5 is connected to the torque arm 10, thereby measuring the torque in the Y-axis direction.

[0043] The bottom of the torque arm 10 is provided with a torque arm connecting shaft, which is rotatably connected to the Z-axis bracket 12 through two third bearings 11. The end of the torque arm connecting shaft is connected to a Z-axis torque end cap 13, which is connected to the fixed end of the helmet external Z-axis torque sensor 2-6. The force-receiving end of the helmet external Z-axis torque sensor 2-6 is connected to the Z-axis bracket 12, thereby measuring the torque in the Z-axis direction.

[0044] The Z-axis support 12 and the force measuring bed 14 are fastened together by bolts.

[0045] like Figure 3 , Figure 4 , Figure 5 As shown, the inner helmet 1 is connected to the outer helmet 3 via three sensor mounting platforms 1-2: an inner helmet X-axis pressure sensor 2-1, an inner helmet Y-axis pressure sensor 2-2, and an inner helmet Z-axis pressure sensor 2-3. These sensors are used to measure the pressure P in the X, Y, and Z axes. X P Y P Z .like Figure 8 , Figure 9 The diagram shows the installation of the X-axis pressure sensor 2-1 inside the helmet in the X-axis direction, along with a partial enlarged view. As can be seen, the fixed end and the force-bearing end of the X-axis pressure sensor 2-1 are connected to corresponding positions on the inner helmet 1 and the outer helmet 3, respectively. When the inner helmet 1 is subjected to force, the X-axis pressure sensor 2-1 will detect the pressure, i.e., P. X Similarly, P Y P Z This is derived sequentially.

[0046] like Figure 6 , Figure 7 As shown, the outer helmet 3 is connected to the helmet bracket 7 via a support shaft 4, an X-axis torque end cap 6, and four first bearings 5. The fixed end and the force-bearing end of the outer X-axis torque sensor 2-4 are respectively connected to the X-axis torque end cap 6 and the helmet bracket 7 at corresponding positions. When the outer helmet 3 twists relative to the helmet bracket 7, the sensor 2 will measure its torque, i.e., T. X And so on, such as Figure 10 , 11As shown in Figure 12, the helmet bracket 7 is connected to the torque arm 10 via two second bearings 8 and a Y-axis torque end cap 9. The fixed end and the force-bearing end of the external Y-axis torque sensor 2-5 are respectively connected to the corresponding positions of the helmet bracket 7 and the torque arm 10. When the helmet bracket 7 twists relative to the torque arm 10, the external Y-axis torque sensor 2-5 will measure its torque, i.e., T. Y The torque arm 10 is connected to the Z-axis bracket 12 via two third bearings 11 and a Z-axis torque end cap 13. The fixed end and the force-bearing end of the helmet-external Z-axis torque sensor 2-6 are respectively connected to the torque arm 10 and the Z-axis bracket 12 at corresponding positions. When the torque arm 10 twists relative to the Z-axis bracket 12, the helmet-external Z-axis torque sensor 2-6 will measure its torque, i.e., T. Z .

[0047] The method of using the human head torque acquisition device of the present invention is as follows: When it is necessary to measure the torque of a human head, the subject lies flat on the force measuring bed 14, places the head inside the inner helmet 1, and further secures the head with the helmet tightening straps 1-3 to ensure measurement accuracy. During measurement, the force measuring instrument 15 is first set to zero, and then the measurement and recording of the force are started. When the subject moves their head due to breathing, heartbeat, or various discomforts, the device can record the physical characteristics of this process: the translational pressure P in the left-right direction (X-axis). X Translational pressure P in the head-to-feet direction (Y-axis) Y Translational pressure P in the ventral-dorsal direction (Z-axis) Z X-axis torque T X Y-axis torque T Y Z-axis torque T Z According to the translational pressure P X P Y P Z and torque T X T Y T Z The head torque of the test subject can then be calculated.

[0048] By measuring the head torque of the test subject, we can provide a more effective and scientific basis for treatment plans that require limiting the position of the patient's head.

Claims

1. A human head torque acquisition device, characterized in that, include: The helmet consists of an inner helmet (1), an outer helmet (3), a helmet support device, and a force measuring bed (14). The inner helmet (1) is located inside the outer helmet (3). Between the inner helmet (1) and the outer helmet (3), a helmet X-axis pressure sensor (2-1), a helmet Y-axis pressure sensor (2-2), and a helmet Z-axis pressure sensor (2-3) are respectively installed at positions corresponding to the ears, the top of the head, and the back of the head. The helmet X-axis pressure sensor (2-1), the helmet Y-axis pressure sensor (2-2), and the helmet Z-axis pressure sensor (2-3) are used to collect translational pressure in the X-axis direction, the Y-axis direction, and the Z-axis direction, respectively. The outer helmet (3) is connected to the force measuring bed (14) through a helmet support device; the helmet support device is equipped with an outer helmet X-axis torque sensor (2-4), an outer helmet Y-axis torque sensor (2-5), and an outer helmet Z-axis torque sensor (2-6) at positions corresponding to the ears, the top of the head, and the back of the head, respectively. The outer helmet X-axis torque sensor (2-4), outer helmet Y-axis torque sensor (2-5), and outer helmet Z-axis torque sensor (2-6) are used to collect torque in the X-axis direction, Y-axis direction, and Z-axis direction, respectively; the torque is obtained based on the collected translational pressure and torque. The helmet support device includes a helmet bracket (7), a torque arm (10), and a Z-axis bracket (12); the two sides of the outer helmet (3) are rotatably connected to the helmet bracket (7) at the positions corresponding to the ears. The helmet bracket (7) is provided with a bracket connecting shaft at the position corresponding to the top of the head. The bracket connecting shaft is rotatably connected to the torque arm (10) through a bearing. The bottom of the torque arm (10) is provided with a torque arm connecting shaft. The torque arm connecting shaft is rotatably connected to the Z-axis bracket (12) through a bearing. The Z-axis bracket (12) is connected to the force measuring bed (14).

2. The human head torque acquisition device according to claim 1, characterized in that, The fixed end and the force-bearing end of the X-axis pressure sensor (2-1) inside the helmet are respectively connected to the corresponding positions of the inner helmet (1) and the outer helmet (3); the fixed end and the force-bearing end of the Y-axis pressure sensor (2-2) inside the helmet are respectively connected to the corresponding positions of the inner helmet (1) and the outer helmet (3); the fixed end and the force-bearing end of the Z-axis pressure sensor (2-3) inside the helmet are respectively connected to the corresponding positions of the inner helmet (1) and the outer helmet (3).

3. The human head torque acquisition device according to claim 1, characterized in that, One side of the outer helmet (3) is rotatably connected to the helmet bracket (7) via a bearing and an X-axis torque end cap (6). The X-axis torque end cap (6) is connected to the fixed end of the outer helmet X-axis torque sensor (2-4), and the force-bearing end of the outer helmet X-axis torque sensor (2-4) is connected to the helmet bracket (7).

4. The human head torque acquisition device according to claim 3, characterized in that, The X-axis torque end cap (6) is fixedly connected to the outer helmet (3) by bolts.

5. The human head torque acquisition device according to claim 3, characterized in that, The other side of the outer helmet (3) is rotatably connected to the helmet bracket (7) via a support shaft (4) and a bearing at the position corresponding to the ear.

6. The human head torque acquisition device according to claim 5, characterized in that, The support shaft (4) is fixedly connected to the outer helmet (3) by bolts.

7. The human head torque acquisition device according to claim 1, characterized in that, The end of the bracket connecting shaft is connected to a Y-axis torque end cap (9), which is connected to the fixed end of the helmet external Y-axis torque sensor (2-5). The force-bearing end of the helmet external Y-axis torque sensor (2-5) is connected to the torque arm (10).

8. The human head torque acquisition device according to claim 1, characterized in that, The torque arm connecting shaft end is connected to a Z-axis torque end cap (13), which is connected to the fixed end of the helmet external Z-axis torque sensor (2-6), and the force-bearing end of the helmet external Z-axis torque sensor (2-6) is connected to the Z-axis bracket (12).

9. The human head torque acquisition device according to claim 1, characterized in that, The inner helmet (1) includes an inner helmet body (1-1) and a helmet tightening strap (1-3); the two ends of the helmet tightening strap (1-3) are respectively connected to the two sides of the inner helmet body (1-1).

10. The human head torque acquisition device according to claim 1, characterized in that, The inner helmet (1) includes an inner helmet body (1-1). Three sensor mounting platforms (1-2) are provided on the outer surface of the inner helmet body (1-1). An X-axis pressure sensor (2-1), a Y-axis pressure sensor (2-2), and a Z-axis pressure sensor (2-3) are respectively mounted on the three sensor mounting platforms (1-2).

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