Intelligent bionic hand big arm and intelligent bionic hand

Abstract

The utility model discloses an intelligent bionic hand big arm which comprises a flexible arm sleeve capable of being arranged on an arm stump in a sleeved mode and a myoelectricity electrode arranged on the inner wall of the flexible arm sleeve, the flexible arm sleeve is made of flexible materials and can be attached to the arm stump, and the myoelectricity electrode is detachably connected with the inner wall of the flexible arm sleeve. The intelligent bionic hand big arm is comfortable to wear, simple and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of bionic hands, in particular to an intelligent bionic hand upper arm and an intelligent bionic hand using the intelligent bionic hand upper arm. Background Art

[0002] The bionic hand is usually divided into an upper arm part, a lower arm part and a palm part. The upper arm is not sealed and is worn on the upper arm of the human hand stump and is connected with the lower arm part.

[0003] The existing bionic arm is made of hard plastic material, and the inner part that contacts the residual limb is provided with multiple myoelectric electrodes. Because the hard inner wall of the upper cavity causes the myoelectric electrodes to be squeezed with the residual limb, it is easy to cause the residual limb to sweat and slip, and it is uncomfortable to wear. In addition, due to the squeezing and deformation of the myoelectric electrodes and the soaking of sweat, the stability of the electrode detecting the myoelectric signal will also decrease. Utility Model Content

[0004] The main purpose of the utility model is to propose an intelligent bionic hand and upper arm, aiming to solve the technical problem in the prior art that the hard inner wall of the upper cavity causes the myoelectric electrode to be squeezed with the residual limb, and the stability of the electrode detecting the myoelectric signal is reduced due to the myoelectric electrode being squeezed and deformed and soaked in sweat.

[0005] To achieve the above-mentioned purpose, the utility model proposes an intelligent bionic hand arm, comprising a flexible arm sleeve, an electrode assembly and a connection assembly, wherein:

[0006] The flexible arm sleeve is mounted on the upper arm stump of a human body, the electrode assembly is arranged on the inner wall of the flexible arm sleeve, and the connecting assembly is arranged on the surface of the flexible arm sleeve.

[0007] In some embodiments, the connection component can be detachably connected to the bionic hand forearm and electrically conductive, so as to transmit the electromyographic signal collected by the electrode component to the bionic hand forearm.

[0008] In some embodiments, the connection assembly includes two hard connection pieces arranged opposite to each other on the surface of the flexible arm sleeve, and the two connection pieces are integrally formed with the flexible arm sleeve.

[0009] In some embodiments, the intelligent bionic hand upper arm also includes a control unit, which is electrically connected to the electrode assembly and connected to the bionic hand lower arm through the connector, and the control unit is used to receive the electromyographic signal sent by the electrode assembly and forward the electromyographic signal.

[0010] In some embodiments, the electrode assembly includes an electromyographic electrode and an electrode mounting component, wherein the electrode mounting component is disposed on the inner wall of the flexible arm sleeve, and the electromyographic electrode is detachably connected to the electrode mounting component.

[0011] In some embodiments, the flexible arm cuff further comprises a tension adjustment mechanism disposed on the flexible arm cuff, and the tension adjustment mechanism is used to adjust the contact and compression strength between the flexible arm cuff and the upper arm residual limb.

[0012] In some embodiments, the tension adjustment mechanism is an elastic band.

[0013] In some embodiments, a plurality of small ventilation holes are provided on the peripheral wall of the flexible arm sleeve.

[0014] In some embodiments, the flexible arm sleeve is provided with two openings, one of which is arranged corresponding to the inner side of the elbow joint of the upper arm residual limb, and the other opening is arranged corresponding to the outer side of the elbow joint of the upper arm residual limb.

[0015] Furthermore, the utility model proposes an intelligent bionic hand, comprising an intelligent bionic hand forearm, an intelligent bionic palm and the intelligent bionic hand upper arm recorded above, the intelligent bionic hand upper arm, the intelligent bionic hand forearm and the intelligent bionic palm are connected in sequence, the intelligent bionic hand upper arm component collects the electromyographic signals of the upper arm residual limb, the bionic hand forearm transmits the electromyographic signals to the intelligent bionic palm, and the intelligent bionic palm controls the finger movements according to the electromyographic signals.

[0016] The utility model intelligent bionic hand upper arm covers the upper arm residual limb with a flexible arm sleeve made of flexible material. The flexible material has good elasticity and air permeability and can be attached to the upper arm residual limb. Compared with the flexible arm sleeve made of hard material, the flexible arm sleeve made of flexible material has less squeezing force on the myoelectric electrode arranged inside the flexible arm sleeve. While satisfying the effect that the flexible arm sleeve squeezes the myoelectric electrode so that it contacts the arm to collect the myoelectric signal of the arm movement, it also ensures that the myoelectric electrode does not excessively squeeze the arm to cause discomfort. The myoelectric signal can be received by the electrode mounting part and transmitted to the bionic hand forearm or external equipment, which is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of an intelligent bionic hand in one embodiment of the utility model.

[0018] Figure 2 for Figure 1 Schematic diagram of the cross section along the AA direction;

[0019] Figure 3 This is a partial structural schematic diagram of an embodiment of the intelligent bionic hand arm of the utility model.

[0020] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0024] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0025] Reference Figure 1 , an intelligent bionic arm, comprising a flexible arm sleeve 1, an electrode assembly 2 and a connection assembly 3, wherein:

[0026] The flexible arm sleeve 1 is sleeved on the upper arm stump of a human body, the electrode assembly 2 is arranged on the inner wall of the flexible arm sleeve 1 , and the connecting assembly 3 is arranged on the surface of the flexible arm sleeve 1 .

[0027] In this embodiment, the flexible arm sleeve 1 of the intelligent bionic hand upper arm of this scheme is a flexible material with a certain elasticity, which can be a nylon-spandex composite material, a spandex elastic mesh material or a nitrile-ammonia blended fiber, etc., replacing the hard material of the existing bionic hand upper arm. It can better fit the user's arm stump and squeeze the electromyographic electrode 21 relatively lightly. The degree of squeezing depends on the properties of the selected flexible material. Technical personnel in this field can design it according to actual needs.

[0028] The human upper arm stump is inserted through one end of the hollow flexible arm sleeve 1, which is sleeved on the upper arm stump. The upper arm stump of the human body inserted into the flexible arm sleeve 1 contacts the electrode assembly 2. It should be noted that, depending on the conventional setting of the bionic hand, the arm part or stump part contacted by the myoelectric electrode 21 is usually the forearm of the arm, and the myoelectric signal is captured and trained according to the movement signal of the forearm. When the forearm moves, the electrode assembly 2 in contact with it captures the forearm movement and generates an electromyographic signal, which can be sent to the bionic hand forearm structure or external equipment for use, and finally drives the intelligent bionic palm 7 to move.

[0029] The utility model discloses an intelligent bionic hand upper arm, which covers the arm or the residual arm through a flexible arm sleeve 1 made of flexible material. The flexible material has good elasticity and air permeability and can be attached to the residual arm. Compared with the bionic hand upper arm made of hard material, the bionic hand upper arm made of flexible material has less squeezing force on the electrode assembly 2 arranged inside the flexible arm sleeve 1. While satisfying the effect of the flexible arm sleeve 1 squeezing the electrode assembly 2 to make it contact the arm to collect the electromyographic signals of the arm movement, it also ensures that the electrode assembly 2 will not excessively squeeze the arm to cause discomfort when wearing. The utility model is simple, practical and comfortable to use.

[0030] Reference Figure 3 In some embodiments, the connection assembly 3 provided in the embodiment of the utility model includes two hard connection members 31 arranged on the surface of the flexible arm sleeve 1 relatively to each other, and the two connection members 31 are integrally formed with the flexible arm sleeve 1 .

[0031] In some embodiments, the two connectors 31 are integrally formed with the flexible arm sleeve 1, and are relatively fixed in position, for mechanical connection with the bionic hand forearm. The connection parts can be precisely matched, and have the guiding and supporting functions of alignment and stable connection, thereby ensuring the accuracy, stability and reliability of the connection, and preventing positional deviation. The simplification of the interface reduces installation time and user operation difficulty. The one-piece molding enhances mechanical strength, increases the allowable load, and improves the integrity of the flexible arm sleeve 1, and also improves service life and safety, greatly enhancing the user experience. Through the one-piece molding and precise positioning settings, the two connectors 31 greatly facilitate the rapid and accurate installation of the bionic hand forearm, and enhance the connection strength, thereby greatly improving the safety and comfort of use.

[0032] In some embodiments, the two connecting members 31 may be Figure 3 The slot block shown in the figure has an insert block corresponding to the slot on the forearm of the bionic hand.

[0033] Reference Figure 3In some embodiments, the intelligent bionic hand upper arm proposed in the embodiment of the utility model also includes a control unit, which is electrically connected to the electrode assembly 2 and connected to the bionic hand lower arm through the connector 31. The control unit is used to receive the electromyographic signal sent by the electrode assembly 2 and forward the electromyographic signal.

[0034] In this embodiment, as one of the implementation forms of the above embodiment: the control unit can be a micro PCB arranged on the connecting piece 31, and a socket can be provided on the PCB. When the socket cooperates with the bionic hand forearm and the connecting piece 31, the PCB sends electromyographic signals to the bionic hand forearm through the connecting piece 31.

[0035] The bionic hand forearm can be provided with a corresponding matching structure corresponding to the form of the bionic hand upper arm connector 31, and the two can be detachably connected, and the two can rotate relative to each other. The technicians in this field can design the connector 31 and the matching structure connected to the connector 31 according to the actual situation, which is not limited here. The connection between the control unit and the bionic hand forearm is not limited to the connection method of setting the output terminal interface on the PCB board, and it can also be that the connector 31 is provided with an intermediate medium, and the control unit is connected to the intermediate medium to transmit the electromyographic signal. The intermediate medium can be metal or other materials that can be flexibly applied by other technicians in this field. It can also be that a through hole is provided on the connector 31 for the electric wire of the electromyographic electrode 21 to pass through, and the electric wire passing through is connected to the bionic hand forearm or an external device. The technicians in this field can design according to the actual needs.

[0036] In some embodiments, the control unit may include a signal receiving subunit, a signal processing subunit and a signal sending subunit electrically connected in sequence, the signal receiving subunit is electrically connected to the electrode assembly 2, and is used to receive electromyographic signals and forward them to the signal processing subunit, the signal processing subunit receives and processes the forwarded electromyographic signals, and the signal sending subunit transmits the processed electromyographic signals to the bionic hand forearm.

[0037] The signal receiving subunit is directly electrically connected to the electrode assembly 2, and an electromyographic detection chip can be set on the control unit to convert the weak bioelectric signals generated by muscle activity into voltage signals for collection. The signal processing subunit first amplifies, filters and removes noise from the collected original electromyographic signals to improve the signal-to-noise ratio, and then performs digital sampling to obtain digital sequence signals, and then uses DSP or MCU to perform feature extraction, parameter calculation and other processing on the signals. The signal sending subunit sends the processed digital electromyographic signals to the bionic hand forearm through a data interface.

[0038] In some embodiments, the signal processing subunit can also be used only as a signal forwarding unit, directly forwarding the electromyographic signals collected by the signal receiving subunit, and sending the electromyographic signals to the bionic hand forearm through the signal sending subunit. The specific settings can be set according to the actual needs of technical personnel in this field and are not limited here.

[0039] In some embodiments, the signal sending subunit may include a wireless communication subunit, and the wireless communication subunit is used to transmit the electromyographic signal to an external device wirelessly.

[0040] The working principle of the wireless communication subunit is as follows: after receiving the signal sent by the signal processing subunit, the wireless communication subunit performs analog-to-digital conversion on the signal. The wireless communication subunit first converts the processed digital electromyographic signal into an analog signal, and then uses the corresponding modulation method (such as FSK, PSK, etc.) to modulate and encode the signal for wireless transmission. The encoded signal is sent to the RF module for up-conversion, power amplification, etc., and finally sent out through the antenna.

[0041] In some embodiments, the bionic hand forearm of the receiving cavity may also be provided with a device corresponding to the wireless communication subunit in the upper structure, and the two are wirelessly connected to transmit electromyographic signals.

[0042] Reference Figure 1 In some embodiments, the connection component 3 proposed in the embodiment of the utility model can be detachably connected to the bionic hand forearm and electrically conductive, so as to transmit the electromyographic signal collected by the electrode component 2 to the bionic hand forearm.

[0043] In this embodiment, the bionic hand upper arm of this scheme is mechanically and electrically detachably connected with the bionic hand lower arm through the connection component 3, which is the interface component of the bionic hand upper arm system. The connection component 3 is electrically connected with the bionic hand lower arm, and can transmit the electromyographic signal collected by the electrode component 2 to the bionic hand lower arm, and then transmit it to the intelligent bionic palm 7 through the bionic hand lower arm to drive the intelligent bionic palm 7 to move. The connection component 3 mechanically connects the bionic hand lower arm, and the connection is reliable and stable, while also taking into account the actual disassembly and use needs.

[0044] In this solution, the electrode assembly 2 detects the electromyographic signal of the residual limb activity, and the electromyographic signal is transmitted to the intelligent bionic palm 7 through the electrical conduction connection with the bionic hand forearm through the connecting assembly 3. The intelligent bionic palm 7 analyzes the instructions to control the corresponding movement and complete the conscious control of the residual limb.

[0045] Reference Figure 1 and Figure 2 In some embodiments, the electrode assembly 2 proposed in the embodiment of the utility model includes an electromyographic electrode 21 and an electrode mounting member 22 . The electrode mounting member 22 is disposed on the inner wall of the flexible arm sleeve 1 , and the electromyographic electrode 21 is detachably connected to the electrode mounting member 22 .

[0046] In this embodiment, the electrode mounting part 22 is installed on the inner wall of the flexible arm sleeve 1, and is used to fix the electrode assembly 2. The electromyographic electrode 21 is detachably connected to the electrode mounting part 22, and can be replaced and adjusted in position as needed. The electromyographic electrode 21 is attached to the muscle part of the residual limb to detect the weak bioelectric signals generated during muscle activity. The electrical signal is transmitted and amplified through the wires and connecting components 3 inside the electrode assembly 2, and is sent to the intelligent bionic palm 7 through the bionic hand forearm. The effect of the electrode assembly 2 is that it adopts a modular and detachable design, which makes it easy to install and replace electrodes and flexible to use. The fixation of the electrode mounting part 22 ensures the stability of the electrode. The highly sensitive electromyographic electrode 21 can accurately detect weak electromyographic signals.

[0047] In some embodiments, the electrode mounting member 22 provided by the present invention includes:

[0048] like Figure 2 As shown, the electrode belt and the Hu buckle, the electrode belt is arranged on the flexible arm sleeve 1, the electrode belt and the Hu buckle are detachably connected, and the electromyographic electrode 21 is detachably connected to the Hu buckle; or

[0049] Two magnetic parts, one magnetic part is arranged on the flexible arm sleeve 1, and the other magnetic part is arranged on the electromyographic electrode 21, and the two magnetic parts can attract each other.

[0050] In the above embodiment, the electrode mounting part 22 is provided to facilitate the replacement of the electromyographic electrode 21 on the flexible arm sleeve 1. The electromyographic electrode 21 is a flexible ring electrode that can be mounted on the forearm of the residual arm. If it is necessary to replace the ring electrode with a different diameter, the electromyographic electrode 21 can be quickly disassembled and replaced through the electrode mounting part 22, so as to achieve the effect that the electromyographic electrode 21 can be quickly replaced in the upper receiving cavity of the utility model.

[0051] The electrode mounting part 22 can be a connection method of an electrode belt and a hook buckle: the electrode belt is fixed on the inner side of the flexible arm sleeve 1, or the electrode belt is directly woven on the flexible arm sleeve 1. The electrode belt is made of soft and comfortable material, such as cloth, rubber, etc. The middle opening of the belt body can allow the wire to pass through. Plastic hook buckles are set at appropriate positions of the electrode belt, and the number is set according to needs. The corresponding positions of the electromyographic electrodes 21 are also designed with hooks that fit together. When in use, the electrode belt is first installed and fixed on the inner side of the flexible arm sleeve 1, and then connected to the electromyographic electrode 21 through the hook buckle. The hook buckle can be in the form of hook felt, and the electrode belt is provided with a velvet surface corresponding to the hook felt. The two are bonded to each other, and the hook hair and the velvet on the velvet surface are hooked together to complete the connection, and the two can be separated by tearing with external force.

[0052] Magnetic connection: a small magnet is embedded in the inner wall of the flexible arm sleeve 1, and a small magnet is also embedded in the surface of the electromyographic electrode 21. By using the attraction of magnetic force, the magnet of the flexible arm sleeve 1 adsorbs the magnet on the surface of the electrode to achieve detachable fixation. The magnetic connection can be disconnected by turning or directly pulling it apart. The magnet can be made of strong rare earth permanent magnet material, which is small and thin and easy to embed. Multiple magnetic points can be set to ensure a secure fixation.

[0053] Reference Figure 1 In some embodiments, the flexible arm cuff 1 provided in the embodiment of the utility model further includes a tension adjustment mechanism 4 provided on the flexible arm cuff 1, and the tension adjustment mechanism 4 is used to adjust the contact and compression strength between the flexible arm cuff 1 and the upper arm residual limb.

[0054] In some embodiments, the tension adjustment mechanism 4 provided in the embodiments of the present invention is an elastic belt.

[0055] In the above embodiment, the tension adjustment mechanism 4 is usually located at the upper arm position of the arm, and its working principle is: first, the arm is inserted into the flexible arm sleeve 1. After the arm is inserted, the tension adjustment mechanism 4 is adjusted to drive the flexible arm sleeve 1 to contact and squeeze the arm until the flexible arm sleeve 1 fits the arm and is fixed on the arm. Then, the tension adjustment mechanism 4 is fixed to complete the operation of wearing the bionic hand upper arm on the upper arm residual limb.

[0056] The tension adjustment mechanism 4 can be an elastic band or a strap provided on the flexible arm sleeve 1, which can be woven on the flexible arm sleeve 1 or otherwise integrally formed with the flexible arm sleeve 1 to flexibly fix the flexible arm sleeve 1 relatively to the arm, or can be a belt adjustment or buckle adjustment provided on the flexible arm sleeve 1 to relatively firmly fix the flexible arm sleeve 1 on the arm. The steps can be simply explained as follows:

[0057] Insert the arm into the flexible arm sleeve 1 so that the elbow contacts the inner wall of the flexible arm sleeve 1 .

[0058] The tightness adjusting mechanism 4 is adjusted until the flexible arm sleeve 1 matches the outer shape of the elbow.

[0059] The tightness of the tie can be changed by adjusting the mechanism, and it should be adjusted appropriately, not too loose or too tight. It is necessary to ensure that the flexible arm sleeve 1 is firmly fastened to the upper arm, but does not over-press the skin.

[0060] Try to move your elbow joint. If the flexible arm sleeve 1 is firmly in place and does not shift, it indicates that the adjustment is good. If the flexible arm sleeve 1 is loose or too tight, continue to make fine adjustments.

[0061] In some embodiments, the flexible arm sleeve 1 provided in the embodiments of the present utility model has a plurality of ventilation holes formed on its peripheral wall.

[0062] In this embodiment, small ventilation holes are evenly arranged on the peripheral wall of the flexible arm sleeve 1, and the number and size are pre-designed. When the upper arm stump is placed in the arm sleeve, the small holes can enable air circulation and exchange between the inside and outside of the flexible arm sleeve 1. When the user is moving, the flexible arm sleeve 1 is compressed, which will allow more air to convect through the small holes. It can effectively prevent the accumulation of heat and moisture inside the flexible arm sleeve 1, maintain good air permeability, make the upper arm stump feel comfortable when wearing it, and prevent the skin from getting wet and softening due to excessive sweating of the stump. Air circulation can reduce contact pressure and prevent local blood circulation disorders. This solution provides good and comfortable wearing, improves user experience, and is conducive to long-term and daily use of the intelligent bionic hand upper arm.

[0063] Reference Figure 3 In some embodiments, the flexible arm sleeve 1 provided in the embodiment of the utility model is provided with two openings 5, wherein one opening 5 is provided corresponding to the inner side of the elbow joint of the upper arm residual limb, and the other opening 5 is provided corresponding to the outer side of the elbow joint of the upper arm residual limb.

[0064] In this embodiment, the inner opening 5 corresponds to the inner side of the elbow joint, so that the elbow part of the residual limb is exposed and not covered. The outer opening 5 corresponds to the outer side of the elbow joint, so that the space in the elbow joint area is larger. When the residual limb is flexed and extended, the space of these two openings 5 ​​can avoid limiting the range of motion of the elbow joint. The effect of the two openings 5 ​​is that the inner opening 5 allows the elbow joint to be completely exposed, ensuring the naturalness of limb control and bionic hand movements. The outer opening 5 leaves more space for elbow movement, preventing the feeling of restraint during exercise, greatly reducing the impact on the movement of the elbow joint of the residual limb, and providing users with excellent comfort and control experience. While ensuring the stability of the arm cuff, the naturalness of limb control is taken into account.

[0065] Reference Figure 1 The utility model further proposes an intelligent bionic hand, comprising the intelligent bionic hand upper arm recorded in the aforementioned embodiment, a bionic hand lower arm 6 connected to the upper arm structure, and an intelligent bionic palm 7 connected to the lower part of the receiving cavity. The specific structure of the intelligent bionic hand upper arm refers to the above embodiment. Since the intelligent bionic hand adopts all the technical solutions of all the above embodiments, it at least has all the technical effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0066] In this embodiment, the bionic hand arm provides support for the residual limb connection, detects nerve electromyographic signals, and realizes conscious control of the residual limb. The residual limb is stably installed and the control is natural and smooth. The bionic hand forearm 6 is connected to the arm to transmit electromyographic signals and support the installation of the intelligent bionic palm 7. The intelligent bionic palm 7 simulates the structure of the human hand and controls the fine movements of each finger segment according to the electromyographic signals. The appearance and movement are highly anthropomorphic, and can realize most of the functions of the human hand.

[0067] In this solution, after the upper arm residual limb is inserted into the bionic hand upper arm of this solution and stably fixed, the electromyographic signal is collected by the upper arm and transmitted to control the movement of the bionic hand forearm 6, and the bionic hand forearm 6 then drives the intelligent bionic palm 7 to perform various flexible movements and grasping movements as needed.

[0068] The system as a whole achieves high adaptability to the residual limb, stable installation, precise control, and natural movement, replacing the functions of the human hand to the greatest extent and greatly improving the comfort of use and quality of life.

[0069] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. An intelligent bionic hand arm, characterized in that: It includes a flexible arm sleeve, an electrode assembly and a connection assembly, wherein: The flexible arm sleeve is mounted on the upper arm stump of a human body, the electrode assembly is arranged on the inner wall of the flexible arm sleeve, and the connecting assembly is arranged on the surface of the flexible arm sleeve.

2. The intelligent bionic hand arm according to claim 1, characterized in that: The connecting component can be detachably connected to the bionic hand forearm and electrically connected, and is used to transmit the myoelectric signal collected by the electrode component to the bionic hand forearm.

3. The intelligent bionic hand arm according to claim 2, characterized in that: The connecting assembly comprises two hard connecting pieces which are arranged opposite to each other on the surface of the flexible arm sleeve, and the two connecting pieces are integrally formed with the flexible arm sleeve.

4. The intelligent bionic hand arm according to claim 3, characterized in that: The intelligent bionic hand upper arm also includes a control unit, which is electrically connected to the electrode assembly and connected to the bionic hand lower arm through the connector. The control unit is used to receive the electromyographic signal sent by the electrode assembly and forward the electromyographic signal.

5. The intelligent bionic hand arm according to claim 1, characterized in that: The electrode assembly comprises an electromyographic electrode and an electrode mounting piece. The electrode mounting piece is arranged on the inner wall of the flexible arm sleeve, and the electromyographic electrode is detachably connected to the electrode mounting piece.

6. The intelligent bionic hand arm according to any one of claims 1 to 5, characterized in that: The flexible arm sleeve also includes a tightness adjustment mechanism disposed on the flexible arm sleeve, and the tightness adjustment mechanism is used to adjust the contact and compression strength between the flexible arm sleeve and the upper arm residual limb.

7. The intelligent bionic hand arm according to claim 6, characterized in that: The tightness adjustment mechanism is an elastic belt body.

8. The intelligent bionic hand arm according to claim 1, characterized in that: The peripheral wall of the flexible arm sleeve is provided with a plurality of ventilation holes.

9. The intelligent bionic hand arm according to claim 1, characterized in that: The flexible arm sleeve is provided with two openings, one of which is arranged corresponding to the inner side of the elbow joint of the upper arm residual limb, and the other opening is arranged corresponding to the outer side of the elbow joint of the upper arm residual limb.

10. An intelligent bionic hand, characterized in that: It comprises an intelligent bionic hand forearm, an intelligent bionic hand palm and the intelligent bionic hand upper arm according to any one of claims 1 to 9, wherein the intelligent bionic hand upper arm, the intelligent bionic hand forearm and the intelligent bionic hand palm are connected in sequence, the intelligent bionic hand upper arm component collects electromyographic signals of the upper arm residual limb, the bionic hand forearm transmits the electromyographic signals to the intelligent bionic palm, and the intelligent bionic palm controls finger movements according to the electromyographic signals.

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