93 results about "Metacarpal bones" patented technology

Disclosed is a lightweight hand exoskeleton force feedback apparatus, including a driver, a first rotating link, a second rotating link, a first linkage link, a second linkage link, a finger sleeve, and a pressure sensor fixing member; the driver is worn on a back of metacarpal bone of a human hand, the finger sleeve is fixed on an index finger, and the pressure sensor fixing member is fixed below the index finger; when the human hand bends to simulate a state of grasping an object, the driver drives the first rotating link to couple with the first linkage link and the second linkage link through the second rotating link to drive the finger sleeve to bend and stretch, force feedback is applied to the fingertip, and a pressure is accordingly imposed on a pressure sensor of the pressure sensor fixing member, so that closed-loop force feedback control is implemented.

Disclosed in the present invention is an artificial hand finger capable of reproducing the functions of an approach phase and a grasp phase of hands. The artificial hand finger comprises a metacarpal bone, a proximal knuckle, a middle knuckle, a distal knuckle, a friction clutch, a driving rope, a driven rope, and elastic assemblies. The friction clutch is slidably mounted on the metacarpal bone, the driving rope bypasses the friction clutch, the driving rope is connected to the proximal knuckle at one end thereof and is connected to the middle knuckle at the other end thereof, two ends of the driven rope are respectively connected to the proximal knuckle and the distal knuckle, and the elastic assemblies are arranged between the metacarpal bone and the proximal knuckle, between the proximal knuckle and the middle knuckle and between the middle knuckle and the distal knuckle. In the artificial hand finger, the functions of the approach phase and the grasp phase are combined by means of the friction clutch mounted in the metacarpal bone, such that the bionic performance of the finger during an entire motion process from approaching an object to stably grasping the object is achieved, and the operation experience of a patient with a hand amputated is improved.

The invention belongs to the related technical field of manipulators, and discloses a robot dexterous hand with a deformable palm, and a little finger module and a ring finger module are correspondingly connected to two metacarpal bone modules; the metacarpal bone module comprises a metacarpal bone, a metacarpal bone first connecting rod, a metacarpal bone second connecting rod, a metacarpal bone tension spring, a metacarpal bone driving structure and a metacarpal bone base, one end of the metacarpal bone is rotationally connected with the finger module, and the other end of the metacarpal bone is rotationally connected with the metacarpal bone base; one end of the metacarpal bone first connecting rod is rotationally connected with the metacarpal bone driving structure, the other end of the metacarpal bone first connecting rod is rotationally connected with one end of the metacarpal bone second connecting rod, a metacarpal bone tension spring is connected between the metacarpal bone first connecting rod and the metacarpal bone driving structure, and the metacarpal bone driving structure is used for pushing the metacarpal bone first connecting rod to deflect the metacarpal bone. The metacarpal bone module can achieve the hand-simulated palm deformation capacity, the metacarpal bone tension spring is arranged, so that the metacarpal bone module has bionic flexibility, and a grabbed object can be better enveloped and grabbed by the palm.

An end cap (100) for an athletic appliance, the end cap comprising a base portion (110) and a lateral extension (160) projecting from the base portion (110). The base portion (110) has a bottom surface (130) having a central axis (101) in its normal. A receiving cavity (170) opposite the bottom surface (130) is configured to receive a portion of an athletic appliance. The extension (160) is configured such that during a swing of the sports instrument (700) with a user's hand gripping around the sports instrument portion (700), the extension (160) contacts lateral and upper portions of a fifth proximal phalanx of the user's hand, and the hand is constrained both in lateral and longitudinal aspects while allowing a first metacarpal bone of the hand to rotate away from the central axis.

The embodiment of the utility model provides a dexterous hand finger, a dexterous hand and a robot, the dexterous hand finger comprises a cross shaft assembly, the cross shaft assembly comprises a first rotating shaft and a first shaft sleeve, the first rotating shaft is fixedly connected with the first shaft sleeve, and the minimum included angle between a first axis and a second axis is larger than or equal to 80 degrees; the first axis is the central axis of the first rotating shaft, and the second axis is the central axis of the first shaft sleeve; a first driving assembly is arranged in the knuckle assembly, and the output end of the first driving assembly is in transmission connection with the first rotating shaft; a second driving assembly is arranged in the metacarpal bone assembly, and the output end of the second driving assembly is in transmission connection with the first shaft sleeve; therefore, the arranged cross shaft assembly comprises the first rotating shaft and the first shaft sleeve, and the minimum included angle between the first axis and the second axis is larger than or equal to 80 degrees, so that the degree of freedom that the fingers of the dexterous hand bend towards the palm center and extend away from the palm center can be achieved through the first shaft sleeve; and the degree of freedom of abduction and adduction of the fingers of the dexterous hand is realized through the first rotating shaft.

An apparatus can include a metacarpal implant, a trapezium implant, and a spacer. The metacarpal implant can include a stem to be inserted into a first cavity of a metacarpal bone and having a first end and a second end, a radial lip, the radial lip extending from the second end, and an opening, the opening extending from the radial lip to the first end. The trapezium implant can include an implant head portion having a shape to match a shape of a trapezium bone and a first cavity insert, to be inserted into a second cavity of the trapezium bone extending from the bottom surface. The spacer can include a spacer head portion congruent to the implant head portion and an opening insert to be inserted in the opening and extending from the bottom surface.

The full-drive dexterous hand comprises a palm mechanism, a thumb mechanism and a finger mechanism, the thumb mechanism comprises a metacarpal bone, a thumb near knuckle and a thumb far knuckle which are sequentially distributed, the metacarpal bone obtains bending and rolling freedom degrees through gear transmission, and the thumb near knuckle and the thumb far knuckle both obtain bending freedom degrees through motor direct drive; the finger mechanism comprises a finger near knuckle, a finger middle knuckle and a finger far knuckle which are sequentially distributed, the finger near knuckle obtains bending and side-sway freedom degrees through gear transmission, and the finger middle knuckle and the finger far knuckle obtain bending freedom degrees through motor direct drive. A full-drive humanoid manipulator framework is adopted, high-precision motion mapping is achieved through 20 independent controllable degrees of freedom, the bionic core is that the ball joint design is adopted, the composite motion capacity of human fingers is highly simulated, fine actions such as grabbing, kneading and rotating of a human hand can be accurately reproduced, and the flexibility degree of the human hand is deeply restored.

According to the dexterous hand thumb, a first driving assembly is arranged in a carpal bone assembly, a second driving assembly is arranged at the first end of a metacarpal bone assembly, a third driving assembly is arranged at the second end of the metacarpal bone assembly, and a fourth driving assembly is arranged at the first end of a knuckle assembly; the first end of the first connecting piece is in transmission connection with an output shaft of the first driving assembly, the second end of the first connecting piece is in transmission connection with an output shaft of the second driving assembly, the first end of the second connecting piece is in transmission connection with an output shaft of the third driving assembly, and the second end of the second connecting piece is in transmission connection with an output shaft of the fourth driving assembly. Due to the fact that the dexterous hand thumb is provided with multiple driving assemblies, the dexterous hand thumb has multiple active freedom degrees, and the bionic performance of the dexterous hand thumb is improved.

The present disclosure relates to a prosthesis (400) configured for implantation in a carpometacarpal joint in the wrist, the prosthesis comprising a first and a second implant part member (405a,b) configured to be screwed into a radius and metacarpal bone respectively. Each implant part member (405a,b) comprising an articulation member (420a,b) configured to be received in the bone fixation member (410a,b) in a releasable manner. The articulation members (420a,b) comprise orientation pins (423) configured to be inserted into bore sections of the bone fixation members 410a,b. When seated in the bore sections, the first portions of the articulation members (420a,b) with the orientation pins (423) are substantially centered along the central axes of the bone fixation members (410a,b), thereby forming common central axes extending through the bone fixation members (410a,b) and the articulation members (420a,b). The radius articulation member (420a) comprises a replacement articular surface configured for articulation with a replacement articular surface located on the metacarpal articulation member (420b). The radius replacement articular surface has (420a) a configuration that is asymmetric about the common central axis of the radius bone fixation (410a) and articulation members (420a). The bore sections have cross-section (419) extending perpendicularly to the central axis defining a first polygonal outline (429). The orientation pins (423) have cross-sections defining a second polygonal contour line, such that when the orientation pins (423) of the articulation members (420a,b) are seated in the bores of the bone fixation members (410a,b), rotation of the articulation members (420a,b) in relation to the bone fixation members (410a,b) is prevented.

A batting aid to be worn on a thumb of a distal hand of a baseball player while gripping a handle of a baseball bat. The batting aid includes a thumb ring to secure the batting aid to the thumb, and a cushioning saddle integrated with the thumb ring. The saddle has a crest portion configured to engage a portion of the second metacarpal of the distal hand, also having at least one resiliently deformable flap configured to extend substantially along a middle portion of the second metacarpal bone of the distal hand. The batting aid minimizes the transmission of vibration and impact from the bat hitting a ball, thereby reducing pain and injury. The batting aid conforms to the bat handle and improves a player's grip on the bat. Because the resiliently deformable flap is self-aligning on the player's hand, the player can more easily concentrate on hitting pitched balls.

Disclosed is a device for total wrist fusion that includes (a) a first section, which is preferably a plate, that is positioned under the skin on top of the forearm, wrist and potentially part of the hand and connected to one or more of the radius or carpal bones, (b) a second section, which is preferably in the shape of an awl and is received in the cannula of the third metacarpal bone. Optionally, an anti-rotational third section may be included, which can connect to the top of the third metacarpal bone.

The utility model discloses a mechanical finger with a T-shaped shaft joint structure, which comprises a T-shaped shaft component, the T-shaped shaft component comprises a joint part and a shaft part, and a metacarpal bone unit and a finger unit are respectively hinged to two ends of the shaft part and the joint part; one end of the first rotary kinematic pair is connected to the finger unit, and the other end is movably connected to the distal end of the metacarpal bone unit; one end of the second rotary kinematic pair is connected to the finger unit, and the other end is movably connected to the near end of the metacarpal bone unit; when the rotating directions of the first rotating motion pair and the second rotating motion pair are opposite, the finger unit performs side-sway motion along the joint part relative to the metacarpal bone unit; and when the rotating directions of the first rotating motion pair and the second rotating motion pair are the same, the finger unit performs bending motion along the shaft part relative to the metacarpal bone unit. A parallel and stable double-supporting frame is formed, the torsion resistance and lateral load resistance of the joint in the side-sway and bending state are enhanced, and high-rigidity and high-precision double-degree-of-freedom movement in a compact space is achieved.

A surgical implant assembly comprising: first and second anchor bodies adapted to engage respective metacarpal bone surfaces of first and second metacarpal bones, a primary suture having a suture length extending between first and second terminal segments of the primary suture, the suture length of the primary suture comprising a first suture segment that passes through the first anchor body and a second suture segment passing through the second anchor body with a bridging segment of the primary suture extending between the first and second suture segments of the primary suture wherein the first suture segment lies in between the bridging segment and the first terminal segment and wherein the second suture segment lies in between the bridging segment and the second terminal segment; a secondary suture having a suture length extending between first and second terminal segments of the secondary suture, the secondary suture comprising a secondary suture segment being passed through the first anchor body, the secondary suture segment being located between the first and second terminal segments of the secondary suture and wherein no portion of the secondary suture passes through the second anchor body.

The application provides an underactuated bionic dexterous hand, a system and a control method thereof. The underactuated bionic dexterous hand comprises a palm, five fingers, a control plate and a steering engine installed on the back of the palm through a threaded hole. The thumb comprises a joint, a tendon rope for driving the bending of the finger, a metacarpal bone, a proximal phalanx and a distal phalanx connected through a cylindrical pin in sequence. The index finger, the middle finger, the ring finger and the little finger have the same structure and each comprises a joint, a tendon rope for driving the bending of the finger, a distal phalanx, a middle phalanx and a proximal phalanx connected through a cylindrical pin in sequence. A finger root stroke limiter is arranged at the metacarpophalangeal joint of the thumb and the palm, and the metacarpophalangeal joint of the index finger, the middle finger, the ring finger and the little finger and the palm, the middle phalanx and the distal phalanx are each provided with a finger root stroke limiter. The application has high human simulation degree, is light and flexible, and solves the technical problems of the overlarge size, the overly complex structure, the rigid motion and the low human simulation degree of the dexterous hand.

The present invention discloses a fine reduction instrument for metacarpal and phalangeal fractures, belonging to the technical field of fracture reduction. The instrument comprises a first handle, and a second handle is hinged on the first handle, and a pressing ring is fixedly installed on the first handle and the second handle. Through the cooperation of the spiral groove and the thin rod, when the initial clamping is completed, the hand of the medical staff is out of contact with the elastic pad on the second handle, at which time the first spring stretches and drives part of the thin rod to insert into the spiral groove. Since the linkage block is fixedly connected to the second handle, the user can then rotate the horizontal rod. During the rotation of the horizontal rod, the second handle is driven to rotate slightly around the hinge point through the spiral groove, the thin rod, the mounting plate, and the mounting block, so that the clamping assembly can be fine-tuned. After the patient's bones are initially fixed, the medical staff can immediately fine-tune the arc of the patient's clamping, which can improve the clamping effect while reducing the fine-tuning time, thereby reducing the patient's surgical risk.

The invention discloses a bionic dexterous hand and a humanoid robot. The bionic dexterous hand comprises a metacarpal bone assembly, a plurality of finger assemblies and a driving assembly. Each finger assembly comprises a cross-shaped connecting unit and a phalanx unit, the cross-shaped connecting units are rotationally connected with the metacarpal bone assembly and the phalanx units respectively, and each phalanx unit comprises two phalanx blocks which are detachable in a left-right split mode; the driving assembly is in transmission connection with the finger assembly and drives the finger assembly to bend and laterally swing. The cross-shaped connecting unit allows the fingers to bend and swing laterally. On the other hand, connection support can be provided for the left and right detachable phalanx blocks. The maintainability and repairability of the dexterous hand are improved, and the replacement cost is reduced. And the finger movement is more accurate and controllable, so that the control difficulty is reduced, and the operation stability of the dexterous hand is improved.

The invention discloses a manipulator which is used for realizing the overall passive degree of freedom of the manipulator. Comprising a mechanical thumb and four mechanical fingers, and metacarpal bone assemblies and wrist assemblies of the four mechanical fingers are connected through elastic components; and an elastic element is arranged between the metacarpal bone components of the adjacent mechanical fingers. Therefore, the mechanical arm can integrally coordinate the passive degree of freedom of the mechanical arm, the flexibility or passive function of the overall action in the mechanical arm application is achieved, and the simulation function of the human hand is achieved more comprehensively.

The invention provides a multi-modal feedback bionic hand and a control method thereof, and relates to the technical field of bionic hands, the multi-modal feedback bionic hand comprises a skeleton structure layer, a driving execution layer, a bionic skin layer, a sensing monitoring layer and a processing module; the skeleton structure layer comprises a metacarpal bone and at least one phalanx; the driving execution layer comprises at least one phalanx driving unit, and each phalanx driving unit comprises a driving wire and a shape memory alloy spring; the bionic skin layer is used for wrapping the skeleton structure layer and the driving execution layer; the sensing monitoring layer comprises angle sensing units and fiber bragg grating sensing units, the angle sensing units are arranged at all joints of the phalanges, and the fiber bragg grating sensing units are arranged in the bionic skin layer; and the processing module is used for receiving the multi-mode sensing signal output by the sensing monitoring layer and controlling the driving signal output to the driving execution layer according to the multi-mode sensing signal. The bionic hand has high response speed and motion stability.

The utility model relates to the technical field of metacarpal bone medical treatment, and discloses a metacarpal bone absorbable intramedullary needle which comprises a main nail and a matching nail, the interior of the main nail is designed to be of a hollow threaded structure, the main nail and the matching nail are used in a paired and matched mode, and the main nail and the matching nail are both made of PLGA materials. The matching nails comprise the first matching nail, the second matching nail and the third matching nail, and the first matching nail, the second matching nail and the third matching nail can be sequentially and rotationally placed into the main nail. According to the utility model, the main nail and the matching nail are both made of the PLGA material, and the PLGA material has good biocompatibility, no toxicity and good capsulation and film forming performance, so that good stability can be provided, marrow fluid in metacarpal bone can be absorbed, a secondary extraction operation is avoided, the previous two operations are changed into one operation, and the operation efficiency is improved. And meanwhile, the treatment cost can be reduced, and the defects that the metal intramedullary needle needs to be taken out for the second time and the treatment cost is increased in the current domestic and international treatment schemes are overcome.

The utility model relates to a wrist fracture fixing device which comprises a front arc-shaped fixing frame and a rear arc-shaped fixing frame, a plurality of arc-shaped connecting holes are formed in the front arc-shaped fixing frame and the rear arc-shaped fixing frame in the arc-shaped direction, and two pulling and connecting rods are connected in the corresponding arc-shaped connecting holes in the front-back direction of the front arc-shaped fixing frame and the rear arc-shaped fixing frame in a penetrating mode to be in the state of pulling and fixing the front arc-shaped fixing frame and the rear arc-shaped fixing frame. The front shaft section of the front connecting seat forwards penetrates through an arc-shaped connecting hole of a front arc-shaped fixing frame and is spirally connected with a front locking nut in a screwed mode to be fixedly connected, a rear connector of the front connecting seat is hinged through a connector at the front end of a pull rod and a pin shaft perpendicular to the front-back direction, and the rear end of the pull rod penetrates through a rear arc-shaped fixing frame to be fixedly connected; a first kirschner wire for fixing the radius in a crimped and penetrating manner is arranged on the rear arc-shaped fixing frame through a rear nut assembly; the front arc-shaped fixing frame is connected with a supporting rod upwards supporting the carpal bone or the metacarpal bone in a penetrating mode through a supporting nut assembly. The device has the advantages that the metacarpal bone can be well supported, micro momentum is increased through fixing of the front and rear arc-shaped fixing frames, and the high-stability and high-quality healing and rehabilitation requirements are met.

The invention relates to the technical field of fracture reduction forceps, in particular to reduction forceps for metacarpal bone comminuted fracture, which comprise a forceps handle I and a forceps handle II, a rotating shaft is mounted at the intersection of the forceps handle I and the forceps handle II, limiting blocks are mounted on the inner sides of the upper ends of the forceps handle I and the forceps handle II, an elastic piece is mounted between the two limiting blocks, and the elastic piece is connected with the rotating shaft. A guide frame is installed on the first plier handle, a fixed plier head is installed at the lower end of the first plier handle, and an adjustable plier head is fixedly installed at the lower end of the second plier handle. The precise adjusting mechanism composed of the telescopic shaft, the ball head unit and the multiple tong head units is arranged in the adjustable tong head, so that a doctor can conduct synchronous or respective precise angle adjustment on the multiple tong head units according to spatial distribution of metacarpal bone comminuted fracture blocks; by means of the mechanical arm, multiple clamping points can be derived from one entry point, multiple bone blocks in different planes and at different angles can be synchronously clamped, the three-dimensional structure of the metacarpal bone is effectively recovered, and the mechanical arm is suitable for complex comminuted fractures.

Disclosed is a lightweight hand exoskeleton force feedback apparatus, including a driver, a first rotating link, a second rotating link, a first linkage link, a second linkage link, a finger sleeve, and a pressure sensor fixing member; the driver is worn on a back of metacarpal bone of a human hand, the finger sleeve is fixed on an index finger, and the pressure sensor fixing member is fixed below the index finger; when the human hand bends to simulate a state of grasping an object, the driver drives the first rotating link to couple with the first linkage link and the second linkage link through the second rotating link to drive the finger sleeve to bend and stretch, force feedback is applied to the fingertip, and a pressure is accordingly imposed on a pressure sensor of the pressure sensor fixing member, so that closed-loop force feedback control is implemented.

The application belongs to the technical field of robots, and discloses a motion decoupling double-path rope-driven bionic thumb device, which comprises a distal phalanx, a proximal phalanx, a metacarpal bone, a thumb base, IP joints, MCP joints and CMC joints for connecting the phalanges; the distal phalanx, the proximal phalanx, the metacarpal bone and the thumb base are connected through tendon rope transmission. The rope path for driving the IP joint does not pass through the MCP joint, and the part of the rope path across the MCP joint is wrapped by a Bowden tube assembly, so that the length of the rope path remains constant when the MCP joint moves, and the motion decoupling of the MCP joint and the IP joint is realized; the rope path for driving the MCP joint is also wrapped by a Bowden tube assembly outside, so that the length of the rope path remains constant when the CMC joint moves, and the motion decoupling of the MCP joint and the CMC joint is realized. The application has the advantages of compact structure, joint motion decoupling, precise force control, strong bearing capacity and the like.

Provided is a hemostatic device capable of effectively applying a compressive force to a puncture site while reducing a burden on a patient even in the case of hemostasis at the puncture site formed at a predetermined position avoiding the metacarpal bone of the index finger of the hand and the metacarpal bone of the thumb of the hand. A main body portion 110 included in a hemostatic device 10 includes a support member 300 formed of a material harder than an inflatable member 210 and configured to overlap the inflatable member, the support member includes an upper end portion 301 located on a first band body portion 410 side and forming an end portion of the support member 300, a lower end portion 302 forming an end portion opposite to the upper end portion, and side surface portions 303 and 304 connecting the upper end portion and the lower end portion, the support member is configured such that a width w1 of the support member decreases from the upper end portion toward the lower end portion, and a thickness t1 of the side surface portions decreases from the upper end portion toward the lower end portion, the lower end portion has a flat portion 302a having a linear shape in plan view, and an outer surface 300b of the support member is curved toward a second band body portion side and a third band body portion side.

A surgical implant assembly includes a first anchor body and a second anchor body adapted to engage respective metacarpal bone surfaces of a first metacarpal bone and a second metacarpal bone; a main suture having a suture length extending between a first end section and a second end section of the main suture, the suture length of the main suture including a first suture section through the first anchor body and a second suture section through the second anchor body, a bridge section of the main suture extending between the first suture section and the second suture section of the main suture, a first suture segment is located between the bridge segment and the first end segment, and wherein a second suture segment is located between the bridge segment and the second end segment; a secondary suture having a suture length extending between a first end section and a second end section of the secondary suture, the secondary suture comprising a secondary suture section passing through the first anchor body, the secondary suture section being located between the first end section and the second end section of the secondary suture, and wherein any portion of the secondary suture does not pass through the second anchor body.

The utility model discloses an intramedullary needle for treating fracture and convenient to hold, which is provided with a treatment section and a holding section for operating and holding, and a positioning structure for holding and positioning is further arranged on the holding section. The intramedullary needle conforms to tubular bone biological fixation, the treatment section can be effectively prevented from rotating in the surgical treatment operation process through the holding section, the penetration depth and path of the treatment section can be further accurately controlled, the treatment accuracy is improved, and the treatment duration is shortened. When the intramedullary needle is used in the treatment process of metacarpal bone fracture, further damage to fracture local hematoma and periosteum can be avoided through closed reduction, blood supply of sclerotin is protected, and fracture healing is facilitated. The intramedullary needle is small in trauma, small in wound scar and beneficial to attractiveness; intramedullary fixation retains the minimally invasive characteristic of kirschner wire fixation, and the fixing effect is more stable and lasting than that of a kirschner wire, and the articular surface is not damaged.

A surgical implant assembly comprising: first and second anchor bodies adapted to engage respective metacarpal bone surfaces of first and second metacarpal bones, a primary suture having a suture length extending between first and second terminal segments of the primary suture, the suture length of the primary suture comprising a first suture segment that passes through the first anchor body and a second suture segment passing through the second anchor body with a bridging segment of the primary suture extending between the first and second suture segments of the primary suture wherein the first suture segment lies in between the bridging segment and the first terminal segment and wherein the second suture segment lies in between the bridging segment and the second terminal segment; a secondary suture having a suture length extending between first and second terminal segments of the secondary suture, the secondary suture comprising a secondary suture segment being passed through the first anchor body, the secondary suture segment being located between the first and second terminal segments of the secondary suture and wherein no portion of the secondary suture passes through the second anchor body.

The invention discloses a controller which comprises a body and a surrounding part. The body is provided with a control area which is used for sending out a control signal according to the action of a thumb of a user. The surrounding part is connected to the body and used for surrounding and fixing a near-end knuckle of an index finger of a user. The body is remote from the proximal knuckle and a joint of a metacarpal bone of a user.

The invention discloses a mobile equipment bionic holding handle for multi-finger operation. The handle comprises at least one holding body, and a bionics outline is constructed on the held surface of the holding body. The contour includes: at least one recessed structure configured to receive and guide at least one finger of a user in an extended state in the multi-finger operation posture; the raised structure is arranged at the lower part of the holding body and is configured to be supported in a metacarpal bone area of a palm of a user; the raised structure is deflected to the center of the mobile device by an angle of 0 to 70 degrees, preferably 35 degrees, to adjust the wrist posture, directing the gravity of the device to the forearm bone load. Through the scientific bionic design and the split type structure, the pressure of the palm center is effectively dispersed, the multi-finger operation comfort degree is greatly improved, and an external heat dissipation device and a wireless device receiver are perfectly compatible.