Rehabilitation assessment device for finger strength

Abstract

A rehabilitation assessment device for finger strength comprising upper shell 1 and lower shell 2 connected to each other. The upper shell comprising a plurality of pressure sensing structures for con

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of rehabilitation devices, in particular to a rehabilitation assessment device for finger strength. BACKGROUND

[0002] The hand is a part of the front end of the human arm, and is composed of five fingers and a palm. The hand is mainly used to grasp and hold things. The two hands are symmetrical to each other and are of mirror images mutually. As the most frequently moving body organ of people, fingers easily suffer from injuries, such as sprains and pinches. In the process of recovery from injuries, ordinary radiographs cannot know the situations of soft tissue injuries such as sprains, and recovery.

[0003] At present, most of products sold on the market are training equipment which can help patients to exercise and rehabilitate. However, such products cannot detect the recovery condition of patients' fingers, so doctors can only draw conclusions from the patients' rehabilitation results. There is no specific data as the data support for hand rehabilitation. Therefore, there is an urgent need to provide a device that can detect finger strength to assist in judging the recovery condition of a patient's finger. SUMMARY

[0004] The purpose of the present disclosure is to provide a rehabilitation assessment device for finger strength in order to solve the defects in the prior art.

[0005] The purpose of the present disclosure can be realized through the following technical scheme:

[0006] A rehabilitation assessment device for finger strength includes an upper shell and a lower shell which are connected with each other to form a spherical structure.

[0007] The upper shell is provided with a plurality of pressure sensing structures for converting finger strength into physical signals. The position of each pressure sensing structure corresponds to the distribution of a spread finger. The top of the upper shell is matched with an inner contour of an open hand.

[0008] The upper shell is internally provided with a single-chip microcomputer. The single-chip microcomputer is connected to the pressure sensing structure. The single-chip microcomputer is used for collecting and integrating the information of the pressure sensing structures and transmitting the information to an upper computer through a bluetooth module.

[0009] A power supply and a wiring adapter circuit board which are connected with each other are fixed in the lower shell, and the single-chip microcomputer is connected to the wiring adapter circuit board.

[0010] Preferably, the pressure sensing structure includes a fixed boss and a diaphragm pressure sensor, and a boss mounting slot matched with the fixed boss is formed in the upper shell.

[0011] The fixed boss is fixed in the boss mounting slot. A sensor fixing groove matched with the diaphragm pressure sensor is formed in one end, away from the upper shell, of the fixed boss. The diaphragm pressure sensor is fixed in the sensor fixing groove. The plane where the diaphragm pressure sensor is is higher than an outer surface of the upper shell. The wiring of the diaphragm pressure sensor passes through the boss mounting slot to be connected to the single-chip microcomputer.

[0012] Preferably, the pressure sensing structure also includes a silica gel wafer, the diaphragm pressure sensor is covered with the silica gel wafer, and the silica gel wafer is fixed on the fixed boss.

[0013] Preferably, a mounting cavity is formed in the upper shell. The bottom of the mounting cavity is provided with a PTC heating module and a heating baffle. A heating module fixing slot is formed in the top of the inner side of the upper shell. The PTC heating module is located inside the heating module fixing slot. The hating baffle abuts against the PTC heating module and is connected to the upper shell through bolts for fixing the PTC heating module in the heating module fixing slot. The PTC heating module is connected to the single-chip microcomputer.

[0014] Preferably, the mounting cavity is internally provided with a support step and a PCB board (Printed Circuit Board). The support step is located between the boss mounting slot and the bottom of the mounting cavity. The PCB board is fixed on the support step. The single-chip microcomputer is fixed to one end, close to the boss mounting slot, of the PCB board.

[0015] Preferably, the single-chip microcomputer includes a voltage conversion circuit for regulating voltage output by the power supply.

[0016] Preferably, the device also includes a gyroscope module for obtaining the triaxial angular information of the device, and the gyroscope module is connected to the single-chip microcomputer.

[0017] Preferably, the lower shell is provided with a charging port and an on-off key, and the charging port and the on-off key are respectively connected to the wiring adapter circuit board.

[0018] Preferably, the power supply is a polymer lithium battery. A second locating slot matched with the power supply is formed in the lower shell. The power supply is fixed in the second locating slot through adhesive. The wiring adapter circuit board abuts against an upper end of the polymer lithium battery. Both ends of the wiring adapter circuit board are fixed in the upper shell through copper pillars.

[0019] Preferably, a nut is embedded into the outer side of the lower shell. The nut is located at the center of the lower shell. The lower shell is provided with a wrist rope. The wrist rope is fixed on the nut through a screw.

[0020] Compared with the prior art, the method has the following advantages:

[0021] Firstly, in the scheme, the patient puts the hand on the upper shell, opens the finger, puts the finger on the corresponding pressure sensing structure, applies pressure to the pressure sensing structure through the finger. The pressure sensing structure collects the finger strength of the patient and transmits the finger strength to the single-chip microcomputer in the form of physical signals to complete signal collection, which is used for subsequent judgment of the recovery condition of the patient's finger.

[0022] When the patient puts the palm on the upper shell, the spherical upper shell can assist the patient's fingers to open and provide support for the patient's palm, so that the test fatigue is reduced, it is more convenient for the fingers to exert force, and the accuracy of the test result is higher. The corresponding pressure sensing structure is pressed by the finger to complete the collection of finger strength for reference for subsequent judgment for doctors to judge the recovery condition of the patient's finger, which makes up for the vacancy of auxiliary detection devices for finger recovery status in the current market.

[0023] Secondly, in the scheme, the diaphragm pressure sensor in the pressure sensing structure is arranged at one end of the fixed boss, so that a certain distance is reserved between the diaphragm pressure sensor and an outer end face of the upper shell. The finger of the patient can find the diaphragm pressure sensor more accurately, and the finger can make more full contact with the diaphragm pressure sensor, so that the finger can exert force more conveniently. With the soft silica gel wafer covered on the outside, the feeling of fatigue caused during the contact between the finger and the diaphragm pressure sensor can be relieved, and the user comfort and experience during the detection process are improved.

[0024] Moreover, the injured nerve of the patient's finger is relatively fragile. When the finger makes contact with the cold upper shell, the symptoms of finger twitching and trembling may be caused by the cold to cause secondary injury to the patient, and the detection cannot be successfully completed. The PTC heating module is arranged in the upper shell to heat the upper shell, and the upper shell is at a comfortable temperature to ensure the smooth completion of the detection, so that the safety and reliability of the device are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG. 1 is a structural schematic diagram of a detection device for finger strength provided by the present disclosure.

[0026] FIG. 2 is a structural schematic diagram of an upper shell with a PTC heating module provided by the present disclosure.

[0027] FIG. 3 is a structural schematic diagram of an upper shell at a first visual angle provided by the present disclosure.

[0028] FIG. 4 is a structural schematic diagram of a lower shell with a power supply provided by the present disclosure.

[0029] FIG. 5 is a structural schematic diagram of a lower shell provided by the present disclosure.

[0030] FIG. 6 is a frontal schematic diagram of a wiring adapter circuit board provided by the present disclosure.

[0031] FIG. 7 is a reversed schematic diagram of a wiring adapter circuit board provided by the present disclosure.

[0032] FIG. 8 is a structural schematic diagram of a fixed boss provided by the present disclosure.

[0033] Reference signs: 1, upper shell; 2, lower shell; 3, fixed boss; 4, PTC heating module; 11, boss mounting slot; 12, mounting cavity; 13, heating module fixing slot; 14, support step; 21, power supply; 22, wiring adapter circuit board; 31, sensor fixing groove; 41, heating baffle; 221, first pin; 222, second pin; 223, third pin; 224, fourth pin; 225, fifth pin; 226, sixth pin; 227, seventh pin; and 228, eighth pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following clearly and completely describes the technical solutions in the embodiments of the present disclosure with reference to the attached figures in the embodiments of the present disclosure. Apparently, the described embodiments are some but not all of the embodiments of the present disclosure. Generally, the described and illustrated components of the embodiments of the present disclosure in the attached figures can be arranged and designed through various different configurations.

[0035] Therefore, the detailed description of the embodiments of the present disclosure provided in the attached figures is not intended to restrict the protected scope of the present disclosure, but merely represents the selected embodiment of the present disclosure. Based on the embodiment in the present disclosure, all other embodiments obtained by the ordinary technical staff in the art under the premise of without contributing creative labor belong to the scope protected by the present disclosure.

[0036] It is noted that similar labels and alphabets represent similar items in the following attached figures, and thus, once a certain item is defined in one attached figure, the item does not need to be further defined and described in the following attached figures.

[0037] In the description of the present disclosure, it needs to be illustrated that the indicative direction or position relations of the terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside" and "outside" are direction or position relations illustrated based on the accompanying diagrams, or the frequently placing direction or position relations when the product in the present disclosure is used, just for facilitating the description of the present disclosure and simplifying the description, but not for indicating or hinting that the indicated device or element must be in a specific direction and is constructed and operated in the specific direction, the terms cannot be understood as the restriction of the present disclosure.

[0038] It needs to be noted that, the terms "first" and "second" are merely intended for a purpose of description, and shall not be understood as an indication or implication of relative importance or implicit indication of the number of indicated technical features. Therefore, a feature limited by "first" or "second" may explicitly or implicitly include one or more features. In the description of the present disclosure, the meaning of "a plurality of" means two or more unless expressly specifically defined otherwise.

[0039] Moreover, the terms such as "horizontal" and "vertical" do not represent that the components need to be horizontal or overhang absolutely, but can be slightly inclined. For example, the term "horizontal" just indicates that the direction is relatively horizontal relative to "vertical", but does not represent that the structure must be completely horizontal and can be slightly inclined.

[0040] Embodiment I

[0041] As shown in FIG. 1, the embodiment provides a rehabilitation assessment device for finger strength, including an upper shell 1 and a lower shell 2 which are connected with each other to form a spherical structure.

[0042] The upper shell 1 is provided with a plurality of pressure sensing structures for obtaining finger pressure, the position of each pressure sensing structure corresponds to the distribution of a spread finger, and the top of the upper shell 1 is matched with an inner contour of an open hand. The upper shell 1 is internally provided with a single-chip microcomputer, and the single-chip microcomputer is connected to the pressure sensing structure.

[0043] A power supply and a wiring adapter circuit board which are connected with each other are fixed in the lower shell 2, and the single-chip microcomputer is connected to the wiring adapter circuit board.

[0044] The patient puts the hand on the upper shell, opens the finger, puts the finger on the corresponding pressure sensing structure, applies pressure to the pressure sensing structure through the finger. The pressure sensing structure collects the finger strength of the patient and transmits the finger strength to the single-chip microcomputer in the form of physical signals to complete signal collection, which is used for subsequent judgment of the recovery condition of the patient's finger.

[0045] When the patient puts the palm on the upper shell, the spherical upper shell can assist the patient's fingers to open and provide support for the patient's palm, so that the test fatigue is reduced, it is more convenient for the fingers to exert force, and the accuracy of the test result is higher. The corresponding pressure sensing structure is pressed by the finger to complete the collection of finger strength for reference for subsequent judgment for doctors to judge the recovery condition of the patient's finger, which makes up for the vacancy of auxiliary detection devices for finger recovery status in the current market.

[0046] In a preferred embodiment, as shown in FIG. 2, FIG. 3 and FIG. 7, the pressure sensing structure includes a fixed boss 3 and a diaphragm pressure sensor, and a boss mounting slot 11 matched with the fixed boss is formed in the upper shell 1.

[0047] As shown in FIG. 8, the fixed boss 3 is fixed in the boss mounting slot 11. A sensor fixing groove 31 matched with the diaphragm pressure sensor is formed in one end, away from the upper shell 1, of the fixed boss 3. The diaphragm pressure sensor is fixed in the sensor fixing groove 31. The plane where the diaphragm pressure sensor is is higher than an outer surface of the upper shell 1. The wiring of the diaphragm pressure sensor passes through the boss mounting slot 11 to be connected to the single-chip microcomputer.

[0048] Wherein, the pressure sensing structure also includes a silica gel wafer, the diaphragm pressure sensor is covered with the silica gel wafer, and the silica gel wafer is fixed on the fixed boss 3. In the embodiment, a gap is left on the bottom side of the fixed boss, and the purpose is to make the wiring of the diaphragm pressure sensor pass through the gap to enter the inside of the sphere so as to facilitate the wiring. Moreover, according to the actual usage, the device is lefthanded or right-handed, so that each finger can measure data.

[0049] Further, a mounting cavity 12 is formed in the upper shell 1. The bottom of the mounting cavity 12 is provided with a PTC heating module 4 and a heating baffle 41. A heating module fixing slot 13 is formed in the top of the inner side of the upper shell 1. The PTC heating module 4 is located inside the heating module fixing slot 13. The hating baffle 41 abuts against the PTC heating module 4 and is connected to the upper shell 1 through bolts for fixing the PTC heating module 4 in the heating module fixing slot 13. The PTC heating module 4 is connected to the single-chip microcomputer.

[0050] The diaphragm pressure sensor in the pressure sensing structure is arranged at one end of the fixed boss, so that a certain distance is reserved between the diaphragm pressure sensor and an outer end face of the upper shell. The finger of the patient can find the diaphragm pressure sensor more accurately, and the finger can make more full contact with the diaphragm pressure sensor, so that the finger can exert force more conveniently. With the soft silica gel wafer covered on the outside, the feeling of fatigue caused during the contact between the finger and the diaphragm pressure sensor can be relieved, and the user comfort and experience during the detection process are improved.

[0051] Moreover, the injured nerve of the patient's finger is relatively fragile. When the finger makes contact with the cold upper shell, the symptoms of finger twitching and trembling may be caused by the cold to cause secondary injury to the patient, and the detection cannot be successfully completed. The PTC heating module is arranged in the upper shell to heat the upper shell, and the upper shell is at a comfortable temperature to ensure the smooth completion of the detection, so that the safety and reliability of the device are improved.

[0052] Specifically, the mounting cavity 12 is internally provided with a support step 14 and a PCB board. The support step 14 is located between the boss mounting slot 11 and the bottom of the mounting cavity 12. The PCB board is fixed on the support step 14. The single-chip microcomputer is fixed to one end, close to the boss mounting slot 11, of the PCB board.

[0053] As shown in FIG. 4 and FIG. 5, the power supply 21 is a polymer lithium battery. A second locating slot matched with the power supply 21 is formed in the lower shell 2. The power supply is fixed in a second locating slot through adhesive. In the embodiment, the battery is a safe explosion-proof lithium battery, which can ensure the safety in use. The lithium battery is a polymer lithium battery, which is compact and flat and is very convenient to fix.

[0054] The wiring adapter circuit board 22 abuts against an upper end of the polymer lithium battery, and both ends of the wiring adapter circuit board 22 are fixed in the lower shell 2 through copper pillars. The outer side of the lower shell 2 is provided with a charging port and a power switch, and the charging port and the power switch are respectively connected to the wiring adapter circuit board.

[0055] Specifically, as shown in FIG. 6 and FIG. 7, the battery wire, the power switch wire, the charging wire and the power output wire can all be welded to the adapter wiring adapter circuit board, which is very simple and convenient. Moreover, the wiring adapter circuit board has a silk screen prompt, and the wires have been connected internally.

[0056] In the embodiment, two location holes are formed in the wiring adapter circuit board, and the wiring adapter circuit board can be fixed on the lower shell through the copper pillars. At the same time, the wiring adapter circuit board is fixed on the battery in an oblique direction, so that the battery can be further reinforced and fixed. The function of the wiring adapter circuit board is to replace the wiring work, and each component is directly welded to this circuit board. The circuit connection is realized inside the circuit board, which has the advantages of stability, reliability and convenience for subsequent product maintenance.

[0057] Wherein, a nut is embedded into the outer side of the lower shell 2. The nut is located at the center of the lower shell 2. The lower shell 2 is provided with a wrist rope. The wrist rope is fixed on the nut through a screw. Threaded holes are correspondingly formed in the peripheries of the upper shell 1 and the lower shell 2, and the upper shell 1 is connected with the lower shell 2 through bolts.

[0058] The device can also be provided with a corresponding support to support and fix the detection device. The auxiliary detection device can be fixed on the support through the nut embedded in the lower shell, and the height and orientation of the support can be adjusted according to the use situation of a user, so that the device is high in adaptability and flexible to use.

[0059] In combination with the above preferred embodiment, the embodiment also provides a more specific embodiment. The finger strength detection device includes an upper shell 1 and a lower shell 2. The upper shell 1 is internally provided with a PTC heating module 4. The heating baffle 41 is made of an aluminum substrate material, which can not only fix the PTC heating module 4, but also play a role in uniform heat dissipation. In the embodiment, two PTC heating modules 4 are used in order to evenly distribute the heating range, so that the whole palm can be quickly heated. Four location holes in the outer ring of the upper shell 1 are fixed with the lower shell through countersunk screws, and three location holes in the inner ring of the upper shell 1 are used for fixing the ARM control board.

[0060] A fixed part for the power supply 21 is arranged in the middle of the interior of the lower shell 2. The power supply can be fixed through a double-faced adhesive tape. The second locating slot is formed inside, so that the power supply is easy to locate. In addition to this, the battery wire, the power switch wire, the charging wire and the power output wire can all be welded to the adapter wiring adapter circuit board 22, so that the circuit inside the device is very simple in structure and convenient in subsequent maintenance. Moreover, the wiring adapter circuit board has a silkscreen prompt, and the wires have been connected internally. Two location holes are formed in the wiring adapter circuit board 22, and the wiring adapter circuit board can be fixed on the lower shell through the copper pillars. At the same time, the wiring adapter circuit board is fixed on the battery in an oblique direction, so that the power supply 21 can be further reinforced and fixed.

[0061] In the embodiment, the structure of the wiring adapter circuit board 22 includes that positive and negative poles are not distinguished for two pin wires of the power switch, one end is connected to a seventh pin 227 of the wiring adapter circuit board, the other end is connected to an eighth pin 228 of the wiring adapter circuit board 22, and the wiring has been connected inside the wiring adapter circuit board 22.

[0062] A USB Type-C connector is used for charging. The USB Type-C connector only leads out the power cord. The two wires are positive and negative poles respectively, and are directly welded to a positive charging pole of a fifth pin 225 and a negative charging pole of a sixth pin 226. Inside the wiring adapter circuit board 22, the fifth pin 225 has been connected to the battery positive pole of a third pin 223, and the sixth pin 226 and the battery negative pole of a fourth pin 224 are connected together. In this way, the wires have been connected internally, and the effective voltage transmission can be ensured inside the circuit board.

[0063] The battery is a safe explosion-proof lithium battery, which can ensure the safety in use. The lithium battery is a polymer lithium battery, which is compact and flat and is very suitable to fix. The positive pole of the battery is welded on the third pin 223, and the negative pole of the battery is welded on the fourth pin 224. The length of the wire of each device can be determined according to the actual installation position, and the most effective wire length can be tailored to ensure the reasonable space use inside the sphere.

[0064] After the power switch, the battery and the charging port are all welded and fixed, the next step is to draw out the battery voltage from the output positive pole of the first pin 221 and the output negative pole of the second pin 222 to supply power to the single-chip microcomputer.

[0065] The single-chip microcomputer includes the following specific functions.

[0066] The output voltage of the power supply is adjusted by a power switching circuit. The purpose is to boost the 3.7V voltage of the battery to 5V to supply power to the whole circuit. Because the PTC heating module is powered by 5V voltage, the power supply of other chip modules is 3.3V, which is also converted from 5V voltage. Moreover, through the voltage conversion circuit, it can be ensured that the converted 5V voltage can be output normally when the battery voltage drops.

[0067] Secondly, ARM and Bluetooth module are in serial TTL communication, and ARM can read the mac address of the bluetooth module as a two-way data communication method. The Mac address serves as a unique identifier of the device.

[0068] Specifically, a USB bluetooth receiving module is inserted into the computer during use, and can receive data uploaded by the designated device after the bluetooth addresses of all device modules are configured. The operator can distinguish the bluetooth mac address of the device that needs to be collected according to requiremetns, and can only set the mac address of the device that needs to be read in the software, so that the data of the specified device can be received in a targeted manner. At the same time, when the device is uploaded, the mac address of the device is also packaged into the data together, so that the upper computer can be distinguished in the software by different mac addresses.

[0069] Moreover, the single-chip microcomputer is connected to the gyroscope module, and the ARM and the gyroscope module are in serial TTL communication, so that the triaxial angular information can be obtained, and the data can be sent to the upper computer through the bluetooth module. The upper computer can analyze the recovery condition of the patient according to the triaxial data. The upper computer can collect data of four devices at the same time, and the communication cycle of each device can be within 100 ms, so that 10 times of collection in 1 second is ensured, and the real-time performance of data is ensured.

[0070] On the other hand, ARM collects five diaphragm pressure sensors and a battery voltage through an internal analog acquisition channel of the chip. The diaphragm pressure sensor is attached with a silica gel wafer, so that the feeling of fatigue of the user during long-time use can be alleviated.

[0071] Finally, ARM controls the digital output on the circuit board by receiving a heating information command sent by the upper computer, and can control the PTC module to obtain 5V voltage, so that the PTC module can work and play a heating function. At the same time, a command can also be sent to turn off the digital output and turn off the PTC module.

[0072] The device realizes the accurate judgment of a doctor on the rehabilitation of the patient's hand, and the understanding data of the finger condition of the patient is more digital. The device is left-handed or right-handed, and adopts the same working principle. Four spherical shells with the diameters of 6 cm, 8 cm, 10 cm and 12 cm are designed according to different ages and genders of patients, so that more people can be used.

[0073] Preferred embodiments of the present disclosure have been described in detail above. It should be understood that numerous modifications and variations can be made by those skilled in the art without creative work in view of the inventive concept. Therefore, a technical solution which can be obtained by those skilled in the art by logistic analysis, reasoning or limited experimentation on the basis of the prior art according to the idea of the present disclosure is intended to be within the scope of protection determined by the claims.

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