35 results about "Metacarpal bones" patented technology

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.

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.

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 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.

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.

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 relates to an orthosis (1) for wearing on a hand (2) of a person for at least limiting the movement of the carpometacarpal joint (CMCj) of the thumb, preferably also limiting the movement of the metacarpophalangeal joint (MCPj) of the thumb (2-1), the orthosis (1) comprising a metacarpal portion (3) extending across the metacarpal bones of the fingers 2 to 5 and a thumb portion (4) in a curved or ring shape fitting around the thumb (2-1), preferably around the proximal phalanx (6) of the thumb (2-1). The thumb portion (4) is connected to the metacarpal portion (3) via a thumb metacarpal portion (7) extending along and / or around the thumb metacarpal (8) when the orthosis (1) is worn on the hand (2).

This application discloses a biological dual-motion total wrist joint prosthesis, relating to the field of prosthesis structure technology. This biological dual-motion total wrist joint prosthesis achieves effective replacement of the wrist joint by incorporating a medullary rod and metacarpal fixation structure. In particular, the configuration of the palm fixation rod and rotation ball allows the prosthesis to function effectively at the wrist joint, replacing the damaged original joint and thus ensuring wrist rotation function. This structure not only effectively fixes the metacarpal bones but also improves the prosthesis's rotation angle and range of motion, avoiding the drawbacks of traditional prostheses that lack sufficient mobility to meet the patient's flexible movement needs. Wrist flexion, extension, and displacement movements are smoothly completed, significantly improving the prosthesis's performance.

The embodiment of the application provides a dexterous hand thumb, a dexterous hand and a robot, the dexterous hand thumb comprising: a first driving assembly arranged in a carpal bone assembly, a second driving assembly arranged at a first end of a metacarpal bone assembly and a third driving assembly arranged at a second end of the metacarpal bone assembly, a fourth driving assembly arranged at a first end of a phalanx assembly, and a first end of a first connecting piece is in transmission connection with an output shaft of the first driving assembly, a second end of the first connecting piece is in transmission connection with an output shaft of the second driving assembly, a first end of a second connecting piece is in transmission connection with an output shaft of the third driving assembly, and a second end of the second connecting piece is in transmission connection with an output shaft of the fourth driving assembly; because the dexterous hand thumb is provided with more driving assemblies, more active degrees of freedom are obtained, and the bionic performance of the dexterous hand thumb is improved.

The utility model belongs to the technical field of medical instruments, and particularly relates to a first metacarpal bone basilar fracture fixing splint. According to the first metacarpal bone basal part fracture fixing splint, the near-end plate can be fixed to the wrist of a patient through the third bridle, the far-end plate is fixed to the proximal joint basal part and the interphalangeal joint of the thumb through the first bridle and the second bridle, and the abduction angle of the thumb is controlled by adjusting the length of the adjusting rod; the first metacarpal bone basilar part is fixed, the hinged position of the near-end plate and the far-end plate is located at the wrist joint of the patient, the skin of the patient cannot be bruised, loosening caused by hand movement of the patient cannot happen, and therefore the good fixing effect is guaranteed.

The application discloses a self-locking double-acting full-wrist joint prosthesis, relates to the technical field of prosthesis structures, and realizes effective replacement of a wrist joint through the arrangement of a stem and a first locking screw. In particular, the arrangement of the palm fixing rod of the stem and the rotating ball part enables the prosthesis to play a role at the position of the wrist joint, replaces the damaged original joint, and thus guarantees the rotating function of the wrist. The structure not only can effectively fix the metacarpal bone, but also improves the rotating angle and the activity range of the prosthesis, avoids the defects that the traditional prosthesis cannot meet the flexible movement requirements of patients due to insufficient activity, and enables the flexion and extension and the deviation movement of the wrist to be smoothly completed, and thus the use performance of the prosthesis is remarkably improved.

Provided is a hemostatic device (110) that can effectively apply a compression force against a puncture site (p1-p4) even when the puncture site (p1-p4) formed at a prescribed position avoiding the index finger metacarpal bone (B1) and the thumb metacarpal bone (B2) of the hand (H) is hemostatic. The hemostatic device (100) has a support member (110) configured to cover a first puncture site (p1), a fixing member (120) configured to fix the support member (110) to the first puncture site (p1), and an expansion member (180) connected to the support member (110) and configured to compress the first puncture site (p1), the rigidity of the support member (110) being greater than the rigidity of the expansion member (180). The width (W) of the support member (110) narrows from an upper end portion (111) toward a lower end portion (112). The thickness of a side surface portion (113) of the support member (110) thins from the upper end portion (111) toward the lower end portion (112).

The embodiment of the application provides a dexterous hand finger, a dexterous hand and a robot, the dexterous hand finger comprising: a cross shaft assembly comprising a first rotating shaft and a first shaft sleeve, the first rotating shaft being fixedly connected with the first shaft sleeve, and the minimum included angle between the first axis and the second axis being greater than or equal to 80 degrees; the first axis being the central axis of the first rotating shaft, and the second axis being the central axis of the first shaft sleeve; a first driving assembly being arranged in a knuckle assembly, and an output end of the first driving assembly being in transmission connection with the first rotating shaft; a second driving assembly being arranged in a metacarpal bone assembly, and an output end of the second driving assembly being in transmission connection with the first shaft sleeve; in this way, since the cross shaft assembly comprising the first rotating shaft and the first shaft sleeve, and the minimum included angle between the first axis and the second axis being greater than or equal to 80 degrees, after realizing the degree of freedom that the dexterous hand finger bends towards the palm and stretches away from the palm through the first shaft sleeve, the dexterous hand finger can realize the degree of freedom that the dexterous hand finger abducts and adducts through the first rotating shaft.

A bone joint implant (1) has a proximal part (120) for translational motion over the trapezium in a first carpometacarpal joint and a distal part (110) for intramedullary engagement in the first metacarpal bone. An articulating coupling (103, 121, 123) is for multi-axial motion with translational movement over a bone in one part (120) and rotation in the other part (110) about the articulating coupling (121, 103). A flange (105) extends radially and around the coupling to limit relative rotational motion of the proximal and distal parts about the coupling, and to provide resilience for contact between the proximal and distal parts. The flange has a contoured surface (101) matching an abutting surface (125) of the proximal part (122) upon articulation of the parts in use to extreme positions. The flange (105) is included in an insert (100) in a stem (111) of the distal part (110), the flange extending proximally of the stem (111) and prohibiting contact between the proximal part (120) and the stem (111) during articulation.

The invention relates to the technical field of robots, and discloses a 27-active-degree-of-freedom high-performance dexterous hand for anatomical topology homeomorphism of human hand movement, which comprises a moon bone, a triangular bone, a hook bone and a fixed metacarpal bone thereof, a head bone and a fixed metacarpal bone thereof, a small polygonal bone and a fixed metacarpal bone thereof, a large polygonal bone and a scaphoid bone which are hinged in sequence, a first driving unit, a second driving unit and a third driving unit. The moon bone is used for connecting the forearm unit; the hook bone and the fixing metacarpal bone thereof, the head-shaped bone and the fixing metacarpal bone thereof, and the small polygonal bone and the fixing metacarpal bone thereof are all used for connecting the four-finger unit, and the large polygonal bone is used for connecting the thumb unit; the first driving unit is hinged to the moon bone; a driving shaft of the first driving unit is hinged to the scaphoid bone; the second driving unit is arranged on the moon bone; the second driving unit is used for driving the first driving unit to rotate; the third driving unit is arranged on the moon bone; the third driving unit is used for driving the triangular bone to rotate. The dexterous hand has the advantages of high dexterous performance, high loading capacity, high precision and compact structure.

A trapezium implant for replacing the distal articular surface of the trapezium at the carpo-metacarpal joint of the thumb by press fit insertion into a prepared channel in a target trapezium, and an insertion guide system and method for inserting the implant. The implant has a saddle-shaped articular surface configured to articulate with a natural existing base of a first metacarpal, articular surface features mimicking natural trapezium bone anatomy and preserving two centers of rotation of the carpo-metacarpal joint, and a single keel extending from a mounting surface and configured to embed the implant into the thickest area of the target trapezium. The single keel minimizes damage to the trapezium and improves surgical implantation. The target trapezium is prepared using an implant insertion guide system including at least one cutting guide and a slot guide, each of which is releasably securable and configured to receive a cutting device.

The invention discloses an adult (final) height prediction method. The method comprises the following steps: 1) respectively evaluating the bone maturity levels of the radius and the first metacarpal bone of a subject, and calculating the average value of the bone maturity levels; the method comprises the steps of (1) selecting a bone maturity grade average value, (2) evaluating the adolescent developmental stage of a subject, (3) finding the percentage (% FHA) of the height corresponding to the developmental stage to the lifelong height from a pre-established table according to the bone maturity grade average value and the adolescent developmental stage, and (4) predicting the adult (final) height = current height / (% FHA / 100) The method is simple and convenient to operate, short in time consumption, high in prediction accuracy and convenient for clinical popularization and application.

The utility model relates to a wrist joint and metacarpophalangeal joint combined prosthesis with a flexion and extension activity function, which belongs to the technical field of medical prostheses and is characterized in that a wrist joint prosthesis is connected with a radius, a metacarpophalangeal bone prosthesis is respectively connected with the wrist joint prosthesis and a plurality of hinge type finger joint prostheses, and each hinge type finger joint prosthesis is connected with a proximal phalanx; the wrist joint prosthesis has a rotating function, meanwhile, the wrist joint prosthesis is rotationally connected with the metacarpal bone prosthesis to achieve the flexion and extension function of the wrist-metacarpal joint, the hinge type finger joint prosthesis comprises two flexion and extension parts, and the two flexion and extension parts are rotationally connected to achieve the flexion and extension motion function of the finger joint. A plurality of suture holes are formed in the metacarpal bone prosthesis and used for being connected with tendons, so that the activity of rotation movement and flexion and extension movement of the combined prosthesis is guaranteed through the tendons.

The invention discloses a motion compatible thumb exoskeleton with a finger aligning function and a use method thereof, and belongs to the technical field of biological mechanical engineering.The motion compatible thumb exoskeleton comprises a palm fixing part arranged on the back of a hand, the palm fixing part is provided with a carpal joint motion module, and the output end of the carpal joint motion module is provided with a carpal joint phalanx connecting piece; the carpometacarpal joint phalanx connecting piece is arranged outside the thumb metacarpal bone, the carpometacarpal joint movement module can drive the carpometacarpal joint phalanx connecting piece to move close to or away from the palm, the carpometacarpal joint phalanx connecting piece is provided with the interphalangeal metacarpal joint movement module, and the output end of the interphalangeal metacarpal joint movement module is arranged on the thumb distal phalanx. The thumb can be driven by the interphalangeal joint movement module to be close to or away from the index finger. According to the motion compatible thumb exoskeleton with the finger aligning function and the using method thereof, accurate, in-place and multi-angle personalized rehabilitation training aiming at thumb finger aligning motion can be achieved.

The application discloses a hand exoskeleton for rehabilitation, which comprises a base, a driving mechanism and a phalanx sleeve. The base is used for being worn on the extension side of metacarpal bones. The driving mechanism is arranged on the base and comprises at least one driving unit. The phalanx sleeve is used for being worn on the extension side of phalanges. There are at least one phalanx sleeve. The phalanx sleeve is in transmission connection with the driving unit. The driving unit can drive the phalanx sleeve to rotate so as to assist the flexion or extension of the phalanges. The hand exoskeleton for rehabilitation can better adapt to different rehabilitation requirements of different patients on finger joints, and can intervene and assist in rehabilitation in different rehabilitation stages.

The utility model relates to a protective tool, in particular to a protective tool for radial styloid process stenosing tenosynovitis, which comprises a wrist guard (1), a placing bag (2) and a fixed supporting piece (5), the placing bag (2) is arranged on the wrist guard (1) and horizontally extends to the third metacarpal bone basal part of the hand back part from the middle part of the big thenar muscle of the palm surface; and the fixing and supporting piece (5) is inserted into the placing bag (2) and is used for fixing the dead point of the extensor major hallux and the dead point of the extensor minor hallux. Compared with the prior art, the utility model solves the problem in the prior art that the normal hand action of a patient is limited due to the influence on the actions of other fingers and wrists when the protector limits the thumb. According to the scheme, by changing the placement position of the fixing supporting piece, the effect on movement of the thumb and the wrist joint of a patient is small while the hallux short stretching tendon and the hallux long stretching tendon are fixed.

The application discloses a modular rope-driven anthropomorphic dexterous hand with joint motion decoupling structure, which comprises a palm and five fingers, each finger being an independent modular structure and comprising a distal phalanx, a middle phalanx, a proximal phalanx and a metacarpal bone, and DIP, PIP and MCP joints connecting the phalanges. A key guide point of a driving rope path of the DIP joint is arranged at a center position of a rolling surface of the MCP joint, so that the length of the driving rope path of the DIP joint is not affected when the MCP joint moves, and complete decoupling of the MCP joint movement and the DIP joint driving is realized. A single finger has four degrees of freedom, i.e. three flexing and one side swinging, and the five fingers have a total of 20 degrees of freedom. The application realizes complete decoupling of joint movement, adopts a modular design, has a compact structure, is convenient to maintain and expand functions, and realizes natural flexing movement and passive recovery of anthropomorphism through coupling of a rope path and a recovery rope path, so that the control precision and movement stability are improved.

The invention discloses a child prosthetic hand device for consumer goods defect analysis and a test method, the hand device comprises an arm shell and a hand assembly, and the hand assembly comprises a hand skeleton and bionic skin; the hand skeleton comprises a metacarpal bone and five phalanges, the metacarpal bone and the five phalanges are fixedly arranged on the arm shell, each phalange comprises a first finger skeleton rotationally connected with the metacarpal bone and a second finger skeleton rotationally connected with the first finger skeleton, and all the first finger skeletons of the four phalanges except the simulated thumb are coaxially and rotationally connected with the metacarpal bone through a first shaft; the first finger skeletons of the four phalanges are coaxially and rotationally connected with the second finger skeletons through second shafts; the hand device further comprises a retracting and releasing device used for driving all phalanges to bend and grab consumer goods, a locking device used for locking the position of the retracting and releasing device, an angle sensor, a pressure-sensitive sensor, an operational amplification module and a controller. The hand device is closer to the hand structure of a real human body, and the effect that the artificial hand actively grabs can be achieved.

The application discloses a bionic manipulator and a control method of the bionic manipulator, and belongs to the technical field of manipulators. The bionic manipulator comprises a bionic finger, a driver and a controller. The bionic finger comprises a bionic skeleton and bionic soft tissue. The bionic skeleton comprises metacarpal bones and phalangeal bones. Metacarpophalangeal joints are formed between the metacarpal bones and the phalangeal bones, and interphalangeal joints are formed between the phalangeal bones. The bionic soft tissue comprises artificial ligaments, metacarpophalangeal ligaments, extensor tendon caps, extensor tendons, tendon sheaths and flexor tendons which are made of soft materials. The controller is used for controlling the driver to drag the extensor tendons and / or the flexor tendons, so that the bionic finger performs flexion and extension movement. The application can realize control of multiple degrees of freedom by using a small amount of drivers, and reduces the weight and structural complexity of the bionic manipulator.

The invention relates to a computer mouse (1), comprising, among other things, a key element (6) arranged on the top of a housing (2), which is designed for actuation by means of the palm of a hand of a person handling the computer mouse (1), wherein the key element (6) is adjustably mounted between a rest position, in which an electrical switch (7) of the computer mouse (1) associated with the key element (6) is in an inactive switching state, and an actuation position, in which the electrical switch (7) associated with the key element (6) is in an activated switching state, and comprising a hand rest (8) connected to the housing (2), which is arranged above the housing (2) and the key element (6), and which has a flat, horizontally extending first support section (9).1) which is designed to rest the finger segments in the hand area of ​​the proximal phalanges and which has a flat, sloping second support section (9.2) oriented towards the key element (6), which is designed to rest the finger segments in the hand area of ​​the metacarpal bones. The invention also relates to a computer input device system (22) with such a computer mouse (1).

1. The name of the design product: metacarpal fixation corrector (3D printing). 2. The use of the design product: used for fixation and support of the skeleton in the case of metacarpal fracture or metacarpal dislocation. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1. 5. Other circumstances that need to be explained: omitted left view, omitted top view, and omitted bottom view, which have been embodied in other views.