Muscle strength measuring device

Abstract

The utility model relates to a muscle strength measuring device, belongs to the technical field of muscle strength measurement, and solves the problems that the existing operation is complicated and is inconvenient to check. The device comprises a data acquisition glove and wrist wearing equipment, a display screen is arranged on the wrist wearing equipment; the wrist wearing equipment is in communication connection with the data acquisition glove; the data acquisition glove comprises a glove body, a first flexible pressure sensor array, a second flexible pressure sensor array, an inertial sensor, a processor, a first flexible circuit board and a second flexible circuit board, the first flexible pressure sensor array is integrated on the first flexible circuit board; the first flexible circuit board is embedded in the outer surface of the palm center side of the glove body; the second flexible pressure sensor array is integrated on the second flexible circuit board; the second flexible circuit board is embedded in the outer surface of the palm back side of the glove body; the first flexible pressure sensor array, the second flexible pressure sensor array and the inertial sensor are electrically connected with the processor.

Description

Technical Field

[0001] The utility model relates to the technical field of muscle strength measurement, in particular to a muscle strength measurement device. Background Art

[0002] Muscle strength assessment technology is widely used in clinical diagnosis and treatment. As one of the foundations of diagnosis and treatment, it is crucial throughout the entire process, including differential diagnosis, treatment, rehabilitation, discharge assessment, and disability assessment. Its application encompasses muscle strength abnormalities caused by musculoskeletal and neurological disorders, and is closely linked to patients' normal lives, work, and even their safety. Common conditions such as tendon injuries, osteoarthritis, stroke, and poliomyelitis all present with muscle strength abnormalities, and the results of these abnormalities can guide the development and implementation of more accurate and targeted examinations and treatment plans.

[0003] Existing muscle strength assessment devices require different force measurement components for different movements. For example, measuring pinch force requires replacing the sensor assembly of the device with a pinch force sensor; measuring grip force requires replacing the sensor assembly with a grip force sensor; and measuring tension requires replacing the sensor assembly with a tension force sensor assembly. Consequently, these devices are complex to operate, difficult to implement, and require a lot of space, hindering widespread clinical application and patient self-assessment and training supervision at home.

[0004] Existing muscle strength measurement devices are complicated to operate, and the collected and measured data need to be viewed on a computer, which makes it inconvenient for doctors to obtain muscle strength information in a timely manner. Utility Model Content

[0005] In view of the above analysis, the present invention aims to provide a muscle strength measurement device to solve the problems of existing muscle strength measurement devices being complicated to operate and inconvenient to view measurement information.

[0006] The purpose of this utility model is mainly achieved through the following technical solutions:

[0007] A muscle strength measurement device, comprising a data acquisition glove and a wrist-worn device; the wrist-worn device has a display screen; the wrist-worn device and the data acquisition glove are in communication connection;

[0008] The data acquisition glove includes: a glove body, a first flexible pressure sensor array, a second flexible pressure sensor array, an inertial sensor, a processor, a first flexible circuit board and a second flexible circuit board;

[0009] The first flexible pressure sensor array is integrated on the first flexible circuit board; the first flexible circuit board is embedded in the outer surface of the palm side of the glove body;

[0010] The second flexible pressure sensor array is integrated on the second flexible circuit board; the second flexible circuit board is embedded in the outer surface of the palm back side of the glove body;

[0011] The first flexible pressure sensor array, the second flexible pressure sensor array, and the inertial sensor are all electrically connected to the processor.

[0012] Based on a further improvement of the above solution, the wrist-worn device includes a device body and a wristband, the device body is provided with a display device; the wristband is connected to both ends of the device body by buckles;

[0013] The data acquisition glove and the device body both include a wireless transmission unit; the wireless transmission unit of the data acquisition glove is connected to the processor;

[0014] The wireless transmission unit of the device body is communicatively connected with the wireless transmission unit of the wrist-worn device.

[0015] Based on a further improvement of the above solution, the wristband is made of soft silicone material.

[0016] Based on a further improvement of the above solution, the first flexible circuit board is a hand-shaped circuit board; the first flexible pressure sensor array includes a plurality of first flexible pressure sensors;

[0017] The plurality of first flexible pressure sensors are respectively arranged on the palm, the base of the palm, the base of the thumb and the center of the palm side of each finger knuckle of the first flexible circuit board.

[0018] Based on a further improvement of the above solution, the second flexible circuit board is a hand-shaped circuit board; the second flexible pressure sensor array includes a plurality of second flexible pressure sensors;

[0019] The plurality of second flexible pressure sensors are respectively arranged on the back of the palm of each finger close to the palm of the second flexible circuit board.

[0020] Based on a further improvement of the above solution, the inertial sensor is arranged on the back of the palm of the glove body.

[0021] As a further improvement to the above solution, the first flexible circuit board and the second flexible circuit board are made of polyimide.

[0022] As a further improvement to the above solution, the folding portions of the fingers of the first flexible circuit board and the second flexible circuit board are both hollowed out.

[0023] Based on a further improvement of the above solution, the first flexible pressure sensor array, the second flexible pressure sensor array and the inertial sensor are all electrically connected to the processor through a sensor interface circuit.

[0024] Based on the further improvement of the above solution, the sensor interface circuit includes an operational amplifier and an analog-to-digital converter;

[0025] The input end of the operational amplifier is connected to the output end of the sensor, and the output end is connected to the input end of the analog-to-digital converter; the output end of the analog-to-digital converter is connected to the input end of the processor.

[0026] Compared with the prior art, the present invention integrates a first flexible pressure sensor array on the first flexible circuit board, which is embedded in the palm side outer surface of the glove body to collect pressure on the palm side during a bare hand physical examination. A second flexible pressure sensor array is integrated on the second flexible circuit board; the second flexible circuit board is embedded in the palm side outer surface of the glove body to collect pressure on the back of the hand during a bare hand physical examination. Motion data during a bare hand physical examination is collected through an inertial sensor. The first flexible pressure sensor array, the second flexible pressure sensor array, and the inertial sensor are all electrically connected to a processor, thereby summarizing the collected pressure data and motion data. The collected data is more comprehensive. When performing physical examinations on different parts of the body and using different movements, there is no need to replace components; the corresponding movement detection can be directly performed, thereby quickly and conveniently performing bare hand muscle strength measurement. The flexible pressure sensor and flexible circuit board are used to comprehensively and accurately collect pressure data and motion data from a bare hand physical examination without affecting the individual to be measured. The wrist-worn device is communicated with the data collection glove so that the measurement information can be sent to the wrist-worn device for display, facilitating the doctor to view the measurement information in a timely manner.

[0027] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be described in the following content, and some advantages will become apparent from the description or be understood through practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the text and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. Throughout the accompanying drawings, the same reference symbols denote the same components.

[0029] Figure 1 This is a block diagram of a muscle strength measurement device according to an embodiment of the present utility model;

[0030] Figure 2 This is a schematic structural diagram of a first flexible circuit board according to an embodiment of the present utility model;

[0031] Figure 3 This is a schematic structural diagram of a second flexible circuit board according to an embodiment of the present invention;

[0032] Reference numerals:

[0033] 1-First flexible pressure sensor; 2-Second flexible pressure sensor; 3-Data acquisition glove. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0035] In the range of muscle strength levels from 0 to 1, the presence of muscle contraction is usually confirmed by the doctor's visual inspection and hand palpation. For muscle strength assessment of patients with muscle strength levels of 3 and above, resistance in the opposite direction of movement is applied according to the assessment site to determine the muscle strength level. Resistance is applied to the test site in the form of "pushing, clamping, pushing, and hooking" through the palm, tiger's mouth, palmar side of fingers, dorsal side of proximal phalanx, etc. For example, the hug-up test is performed with palm pressure to test for supraspinatus tendon injury, the lift-off test is performed with fist top to test for subscapularis tendon injury, the abdominal compression resistance test is performed with finger hook, etc., and the abduction, internal rotation and external rotation resistance test is performed with clamping.

[0036] Based on this, a specific embodiment of the present invention discloses a muscle strength measuring device, such as Figure 1 As shown, it includes: a data acquisition glove and a wrist-worn device; the wrist-worn device has a display screen; the wrist-worn device and the data acquisition glove are in communication connection;

[0037] The data acquisition glove includes: a glove body, a first flexible pressure sensor array, a second flexible pressure sensor array, an inertial sensor, a processor, a first flexible circuit board and a second flexible circuit board;

[0038] The first flexible pressure sensor array is integrated on the first flexible circuit board; the first flexible circuit board is embedded in the outer surface of the palm side of the glove body;

[0039] The second flexible pressure sensor array is integrated on the second flexible circuit board; the second flexible circuit board is embedded in the outer surface of the palm back side of the glove body;

[0040] The first flexible pressure sensor array, the second flexible pressure sensor array, and the inertial sensor are all electrically connected to the processor.

[0041] Compared with the prior art, the muscle strength measurement device provided in this embodiment integrates a first flexible pressure sensor array on the first flexible circuit board, which is embedded in the palm-side outer surface of the glove body to collect palm pressure during a manual physical examination. A second flexible pressure sensor array is integrated on the second flexible circuit board; the second flexible circuit board is embedded in the palm-side outer surface of the glove body to collect palm-side pressure during a manual physical examination. Motion data during a manual physical examination is collected using an inertial sensor. The first flexible pressure sensor array, the second flexible pressure sensor array, and the inertial sensor are all electrically connected to a processor, thereby summarizing the collected pressure and motion data. The collected data is more comprehensive. When performing physical examinations on different parts of the body and using different movements, there is no need to replace components; the corresponding movement detection can be directly performed, thereby quickly and conveniently performing manual muscle strength measurement. The flexible pressure sensor and flexible circuit board are used to comprehensively and accurately collect pressure and motion data from manual physical examinations without affecting the individual to be measured. The wrist-worn device is connected to the data collection glove through communication, so that the measurement information can be sent to the wrist-worn device for display, facilitating timely viewing of the measurement information by the doctor.

[0042] During implementation, the wrist-worn device includes a device body and a wristband, wherein the device body is provided with a display device; and the wristband is connected to both ends of the device body via buckles.

[0043] During implementation, the wristband includes a left wristband and a right wristband, which are connected to the device body via a buckle structure. The left wristband has a fixed buckle, and the right wristband has multiple fixing holes. By snapping the fixed buckle into different fixing holes, the left and right wristbands can be connected and the tightness can be adjusted.

[0044] During implementation, for comfort, the wristband can be made of soft silicone material.

[0045] During implementation, the data glove and the device body both include a wireless transmission unit; the wireless transmission unit of the data acquisition glove is connected to the processor.

[0046] The wireless transmission unit of the device body is communicatively connected with the wireless transmission unit of the wrist-worn device.

[0047] The wrist-worn device and the data collection gloves are wirelessly connected. The wrist-worn device can be worn on the hands of other people instead of the doctor performing the muscle strength measurement, thereby expanding the scope of use of the device and improving its flexibility.

[0048] The programs / software involved in the processor in the above embodiments are common methods in the prior art, such as running the existing data aggregation and transmission methods in the processor. The present invention does not involve any software improvements.

[0049] When implementing, if Figure 2 As shown, the first flexible circuit board is a hand-shaped circuit board; the first flexible pressure sensor array includes a plurality of first flexible pressure sensors;

[0050] The plurality of first flexible pressure sensors are respectively arranged on the palm, the base of the palm, the base of the thumb and the center of the palm side of each finger knuckle of the first flexible circuit board.

[0051] When implementing, if Figure 3 As shown, the second flexible pressure sensor array includes a plurality of second flexible pressure sensors;

[0052] The plurality of second flexible pressure sensors are respectively arranged on the back of the palm of each finger close to the palm of the second flexible circuit board.

[0053] During implementation, the flexible circuit board can be cut into the shape of a hand by laser, and the flexible circuit board can be a flexible circuit board made of polyimide material.

[0054] During implementation, acrylic tape was used to fix the flexible pressure sensor on the flexible circuit board.

[0055] In order to accurately and comprehensively collect palm pressure data, first flexible pressure sensors are arranged in the palm, base of palm, base of thumb and center of palmar knuckles of each finger on the first flexible circuit board.

[0056] A second flexible pressure sensor is arranged on the back side of each finger joint close to the palm of the second flexible circuit board.

[0057] During implementation, both the first flexible pressure sensor and the second flexible pressure sensor are self-powered flexible pressure sensors, thereby increasing the service life of the sensors.

[0058] During implementation, the inertial sensor is placed on the back of the palm of the glove body to collect wrist motion data.

[0059] During implementation, the processor is arranged on the back side of the glove body near the wrist.

[0060] During implementation, the wireless transmission unit may be a wireless transmission unit such as WiFi, Bluetooth, etc.

[0061] In order to improve wearing comfort, the folding parts of the fingers of the first flexible circuit board and the second flexible circuit board are hollowed out.

[0062] During implementation, in order to improve the performance of collecting data, the first flexible pressure sensor array, the second flexible pressure sensor array and the inertial sensor are all electrically connected to the processor through a sensor interface circuit.

[0063] The sensor interface circuit includes an operational amplifier and an analog-to-digital converter;

[0064] The input end of the operational amplifier is connected to the output end of the sensor, and the output end is connected to the input end of the analog-to-digital converter; the output end of the analog-to-digital converter is connected to the input end of the processor.

[0065] The operational amplifier is used to convert the signals output by each sensor into voltage signals and transmit them to the analog-to-digital converter; the analog-to-digital converter is used to convert the received voltage signals into digital signals.

[0066] Those skilled in the art will understand that the programs / software involved in the wireless transmission unit in the above-mentioned embodiments are common methods in the prior art, such as running the methods in the existing wireless transmission unit in the wireless transmission unit, the programs / software involved in the operational amplifier are common methods in the prior art, such as running the methods in the existing operational amplifier in the operational amplifier, and the programs / software involved in the analog-to-digital converter are common methods in the prior art, such as running the methods in the existing analog-to-digital converter in the analog-to-digital converter. The present invention does not involve any improvements in software. The present invention only requires that each device with corresponding functions be connected through the connection relationship given in the embodiment of the present invention, and does not involve any improvements in program software. As for the connection method between the hardware devices with corresponding functions, those skilled in the art can use existing technology to implement them, and will not be described in detail here.

[0067] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A muscle strength measuring device, characterized in that: It includes a data acquisition glove and a wrist-worn device; the wrist-worn device has a display screen; the wrist-worn device and the data acquisition glove are in communication connection; The data acquisition glove includes: a glove body, a first flexible pressure sensor array, a second flexible pressure sensor array, an inertial sensor, a processor, a first flexible circuit board and a second flexible circuit board; The first flexible pressure sensor array is integrated on the first flexible circuit board; the first flexible circuit board is embedded in the outer surface of the palm side of the glove body; The second flexible pressure sensor array is integrated on the second flexible circuit board; the second flexible circuit board is embedded in the outer surface of the palm back side of the glove body; The first flexible pressure sensor array, the second flexible pressure sensor array, and the inertial sensor are all electrically connected to the processor.

2. The muscle strength measuring device according to claim 1, characterized in that The wrist-worn device includes a device body and a wristband, wherein the device body is provided with a display device; the wristband is connected to both ends of the device body via buckles; The data acquisition glove and the device body both include a wireless transmission unit; the wireless transmission unit of the data acquisition glove is connected to the processor; The wireless transmission unit of the device body is communicatively connected with the wireless transmission unit of the wrist-worn device.

3. The muscle strength measuring device according to claim 2, characterized in that The wristband is made of soft silicone material.

4. The muscle strength measuring device according to claim 1, characterized in that The first flexible circuit board is a hand-shaped circuit board; the first flexible pressure sensor array includes a plurality of first flexible pressure sensors; The plurality of first flexible pressure sensors are respectively arranged on the palm, the base of the palm, the base of the thumb and the center of the palm side of each finger knuckle of the first flexible circuit board.

5. The muscle strength measuring device according to claim 1, characterized in that: The second flexible circuit board is a hand-shaped circuit board; the second flexible pressure sensor array includes a plurality of second flexible pressure sensors; The plurality of second flexible pressure sensors are respectively arranged on the back of the palm of each finger close to the palm of the second flexible circuit board.

6. The muscle strength measuring device according to claim 1, characterized in that The inertial sensor is arranged on the back of the palm of the glove body.

7. The muscle strength measuring device according to claim 1, characterized in that The first flexible circuit board and the second flexible circuit board are made of polyimide.

8. The muscle strength measuring device according to claim 7, characterized in that: The folding parts of the fingers of the first flexible circuit board and the second flexible circuit board are both hollowed out.

9. The muscle strength measuring device according to claim 1, characterized in that: The first flexible pressure sensor array, the second flexible pressure sensor array and the inertial sensor are all electrically connected to the processor via a sensor interface circuit.

10. The muscle strength measuring device according to claim 9, characterized in that: The sensor interface circuit includes an operational amplifier and an analog-to-digital converter; The input end of the operational amplifier is connected to the output end of the sensor, and the output end is connected to the input end of the analog-to-digital converter; the output end of the analog-to-digital converter is connected to the input end of the processor.

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