CN104783936A

CN104783936A - Artificial upper limb

Info

Publication number: CN104783936A
Application number: CN201510206137.7A
Authority: CN
Inventors: 孙吉发
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-28
Filing date: 2015-04-28
Publication date: 2015-07-22
Anticipated expiration: 2035-04-28
Also published as: CN104783936B

Abstract

Provided is an artificial upper limb where a labor tool can be installed. A tool base connected with the labor tool is arranged at the palm part of a hand skeleton and provided with a locking device matched with a tool handle. A thumb in fingers is connected with a linkage mechanism. The linkage mechanism comprises a front arm receiving cavity, an upper arm clamping belt, a hollow bolt, a pull rod, a rotating plate, a shaft rod, a hinge arm and a power rod, wherein one end of the rotating plate is fixedly connected with the thumb, the other end of the rotating plate is connected with one end of the pull rod through a tension spring in a hanging mode, the other end of the pull rod is movably connected with a shifting fork at one end of the power rod in a hanging mode, the other end of the power rod is hinged to one end of the hinge arm, and the other end of the hinge arm is fixedly connected with the upper arm clamping belt. The power rod is composed of a pull arm and an adjusting arm which are connected through threads. A rubber cushion is laid between the hand skeleton and the arm receiving cavity. A baffle is arranged on the hand skeleton. Various labor tools can be installed on the artificial upper limb, and physically-challenged people can conveniently live a daily life and participate in labor.

Description

Upper extremity prosthesis

Technical field

The present invention relates to human body artificial limb, specifically provide a kind of upper extremity prosthesis.

Background technology

The artificial limb that the people with disability lacking upper limb uses only has the profile of limbs mostly, although apparent defect can be made up, but too many help be there is no to the daily self-care of user and life, the commercially available electronic pseudepipodite that can capture article, use often by the restriction of battery electric quantity, and grip is not easily controlled, and electrical artificial limb is expensive, complex structure, each mechanism is connected comparatively accurate, larger external impacts can not be stood, general daily demand can only be met, limited use, cannot use in the work that force is larger, the worry that social sanction is most people with disability cannot be obtained by work.

Summary of the invention

The object of this invention is to provide a kind of upper extremity prosthesis can installing multiple instruments of labour, meet the disappearance daily life of upper limb disabled person and the needs of work.

Technical scheme of the present invention is: upper extremity prosthesis, comprises hands skeleton, finger, it is characterized in that: the palm of the hand portion of hands skeleton is provided with the tool seat be connected with instruments of labour, and tool seat is provided with the locking device matched with handle for tool.

Described tool seat is conical pipe, and described locking device is the chuck being provided with locking tool handle in conical pipe outer rim side, and chuck is provided with the gap that handle for tool is come in and gone out;

Thumb in finger is connected with link gear, this link gear has below-elbow socket, upper arm cassette tape, cored screw, pull bar, rotating plate, axostylus axostyle, pivoted arm and power rail, the shaft of cored screw and the wrist end of hands skeleton are connected, be rotationally connected with the front end axis hole of below-elbow socket, cored screw is built with the pull bar of activity, one end that pull bar is positioned at below-elbow socket is provided with convex edge, pull bar is positioned at the intraskeletal one end of hands and is mounted by one end of extension spring and rotating plate, the other end and the thumb of rotating plate are connected, rotating plate and axostylus axostyle axis hole are rotationally connected, rod end and the hands skeleton of axostylus axostyle are connected, rotating plate return torsion spring axostylus axostyle is equipped with, two torsion ends of rotating plate return torsion spring mount with hands skeleton and rotating plate activity respectively, rear end and the pivoted arm of below-elbow socket are hinged, rear end and the upper arm cassette tape of pivoted arm are connected, the front end of pivoted arm is provided with hinge, one end and the hinge of power rail are hinged, the shaft of power rail is connected with the chamber activities of below-elbow socket, the other end of power rail is fixed with and pulls fork, pulls fork to be connected with the rod body movement of pull bar, pulls fork to mount with the convex edge activity of pull bar,

Described power rail is made up of the torque arm be threaded and regulating arm;

Be lined with rubber blanket between hands skeleton and below-elbow socket, described cored screw is equipped with the adjusting nut be threaded in the one end being positioned at below-elbow socket, and adjusting nut crimps with the inner face activity of below-elbow socket;

Hands skeleton is equipped with baffle plate, the rod end activity clamping of baffle plate and pull bar, one end and the hands skeleton of baffle plate are hinged.

Advantage of the present invention is: the handle for tool of instruments of labour and tool seat are carried out combination and locks, the people with disability of deficiency of skeletal limb can be allowed to use multiple types of tools to participate in work, meet the user demand of people with disability's daily life, make people with disability embody self-value in work, participate in social construction veritably.

The tool seat of conical pipe can combine rapidly with the handle for tool of instruments of labour and be separated, and instruments of labour can be dismantled quickly and easily, is applicable to the instrument that some are frequently changed, as hook, fork, electric cautery, screwdriver, spanner etc.; Locking device can fixed labor instrument securely, is applicable to using some instruments of labour, as operation tools such as hammer, axe, saws; Upper extremity prosthesis of the present invention is when actual fabrication, and when its objective is use force application means, at least hands skeleton, tool seat, handle for tool and below-elbow socket should be metal material, and preferably use stainless steel; During the small tool exerting a force less as used some, in order to alleviate the weight of artificial limb, reduce the cost of artificial limb, above-mentioned parts can use macromolecular material.

Middle finger of the present invention is flexibly connected with hands skeleton by link gear, the flexing of elbow joint can be utilized to allow movable thumb and all the other fixing fingers coordinate by parts each in link gear and grasp article, facilitate the daily life of people with disability; Extension spring is wherein the key problem in technology in link gear, extension spring can play the effect of slow pressure, when elbow joint overexertion, unnecessary grip is discharged by extension spring, be not subject to the restriction of object size and elbow joint bending angle, prevent damage product, can control by the extension spring of installing different pulling force the pressure that thumb is finally applied to article, make upper extremity prosthesis of the present invention can grasp dixie cup and also can grasp steel pipe; The overall length of power rail can be regulated by torque arm and regulating arm, aperture and the tightening force of thumb can be regulated according to actual requirement; Rubber blanket can increase the frictional force between hands skeleton and below-elbow socket, makes to have between hands skeleton and below-elbow socket the resistance necessarily rotated, can regulate the angle of hands skeleton easily, thus makes instrument that hands skeleton is installed in use more smoothly; When needing long-term holding part article, can utilize baffle plate that pull bar is stuck, thumb is fixed, after pull bar is stuck, pull fork to be free to slide on pull bar, elbow joint is not limited, can be laborsaving; Upper extremity prosthesis of the present invention adopts self power, and make finger grasp object, the tool seat of configuration can install multiple types of tools, utilizes the instruments of labour installed to participate in doing manual work.

Accompanying drawing explanation

Fig. 1 is the stretched out structure schematic diagram of upper extremity prosthesis of the present invention;

Fig. 2 is the buckling structure schematic diagram of upper extremity prosthesis of the present invention;

Fig. 3 is the front axonometric drawing of upper extremity prosthesis of the present invention;

Fig. 4 is the rear axonometric drawing of upper extremity prosthesis of the present invention;

Using state figure when Fig. 5 is upper extremity prosthesis of the present invention stretching, extension;

Using state figure when Fig. 6 is upper extremity prosthesis flexing of the present invention.

In figure, 1 handle for tool, 2 hands skeletons, 3 chuck, 4 gap, 5 hooks, 6 tool seat, 7 thumbs, 8 baffle plates, 9 torque arm, 10 long nuts, 11 adjusting screw(rod)s, 12 regulating arms, 13 pivoted arms, 14 upper arm cassette tapes, 15 below-elbow sockets, 16 convex edges, 17 adjusting nuts, 18 pull fork, 19 cored screws, 20 rubber blankets, 21 pull bars, 22 rotating plates, 23 axostylus axostyles, 24 return springs, 25 extension springs, 26 protecting covers, 27 instruments of labour.

Detailed description of the invention

Upper extremity prosthesis, comprise hands skeleton 2, finger, the palm of the hand portion of hands skeleton is provided with the tool seat 6 be connected with instruments of labour 27, and tool seat is provided with the locking device matched with handle for tool 1; One end of handle for tool is flexibly connected with tool seat, the other end of handle for tool is instrument, namely instrument is combined by the tool seat of handle for tool on hands skeleton, finally be connected as a single entity, described tool seat is conical pipe, described locking device is the chuck 3 being provided with locking tool handle in conical pipe outer rim side, and chuck is provided with the gap 4 that handle for tool is come in and gone out; Handle for tool is corresponding cone with the abutting end of tool seat, this vertebral body and canalis spinalis activity grafting, can process matsurface or decorative pattern, increase its frictional force between the two on the faying face of canalis spinalis and vertebral body, makes combination more reliable and firmly; Handle for tool is provided with hook 5, and the gap that the appearance handle for tool that chuck is provided with is come in and gone out can hold hook to be passed through; By aiming in gap insertion tool seat with the hook that handle for tool is integrally connected during installation, by dimensional fits, rotating tool handle, makes the block end of hook and wild card decometer connect one, can, when using force application means, prevent instrument from slipping out of the hand.

In upper extremity prosthesis of the present invention, thumb 7 in finger is connected with link gear, this link gear has below-elbow socket 15, upper arm cassette tape 14, cored screw 19, pull bar 21, rotating plate 22, axostylus axostyle 23, pivoted arm 13 and power rail, the shaft of cored screw and the wrist end of hands skeleton are connected, be rotationally connected with the front end axis hole of below-elbow socket, cored screw is built with the pull bar of activity, one end that pull bar is positioned at below-elbow socket is provided with convex edge 16, pull bar is positioned at the intraskeletal one end of hands and is mounted by extension spring 25 one end with rotating plate, the other end and the thumb of rotating plate are connected, rotating plate and axostylus axostyle axis hole are rotationally connected, rod end and the hands skeleton of axostylus axostyle are connected, rotating plate return torsion spring axostylus axostyle is equipped with, two torsion ends of rotating plate return torsion spring mount with hands skeleton and rotating plate activity respectively, rear end and the pivoted arm of below-elbow socket are hinged, rear end and the upper arm cassette tape of pivoted arm are connected, the front end of pivoted arm is provided with hinge, one end and the hinge of power rail are hinged, the shaft of power rail is connected with the chamber activities of below-elbow socket by protecting cover 26, the other end of power rail is fixed with and pulls fork 18, pulls fork to be connected with the rod body movement of pull bar, pulls fork to mount with the convex edge activity of pull bar, when flexing below-elbow socket and upper arm cassette tape, the link of pivoted arm and power rail is around the hinge axes displacement of below-elbow socket and upper arm cassette tape, power rail drives the elastic force pulling fork to make pull bar overcome return spring 24 to drive rotating plate around spindle rotation by extension spring, makes thumb carry out action.

Described power rail is made up of the torque arm 9 be threaded and regulating arm 12.In the present embodiment, long nut 10 is equipped with in one end corresponding with regulating arm of torque arm, and adjusting screw(rod) 11 is equipped with in one end that regulating arm is corresponding with torque arm, controls the length of power rail by rotating regulating arm, user, according to own situation and elbow joint flexion angle, suitably regulates.

Be lined with rubber blanket 20 between hands skeleton and below-elbow socket, described cored screw is equipped with the adjusting nut 17 be threaded in the one end being positioned at below-elbow socket, and adjusting nut crimps with the inner face activity of below-elbow socket; Its principle increases hands skeleton outer face and the outer face of below-elbow socket and the frictional force of rubber blanket by the thrust of two adjusting nuts, thus make hands skeleton have certain resistance when rotating, and can easily adjust the angle of hands skeleton and fix.

Hands skeleton is equipped with baffle plate 8, the rod end activity clamping of baffle plate and pull bar, one end and the hands skeleton of baffle plate are hinged; In this enforcement, in the wrist perforate of hands skeleton, the movable end of baffle plate is reached skeleton, and be convenient to stir, when stirring, the plate body of baffle plate and pull bar are positioned at the end face activity clamping of hands skeleton one end.

Claims

1. upper extremity prosthesis, comprises hands skeleton, finger, it is characterized in that: the palm of the hand portion of hands skeleton is provided with the tool seat be connected with instruments of labour, and tool seat is provided with the locking device matched with handle for tool.

2. upper extremity prosthesis according to claim 1, is characterized in that: described tool seat is conical pipe, and described locking device is the chuck being provided with locking tool handle in conical pipe outer rim side, and chuck is provided with the gap that handle for tool is come in and gone out.

3. upper extremity prosthesis according to claim 1 and 2, it is characterized in that: the thumb in finger is connected with link gear, this link gear has below-elbow socket, upper arm cassette tape, cored screw, pull bar, rotating plate, axostylus axostyle, pivoted arm and power rail, the shaft of cored screw and the wrist end of hands skeleton are connected, be rotationally connected with the front end axis hole of below-elbow socket, cored screw is built with the pull bar of activity, one end that pull bar is positioned at below-elbow socket is provided with convex edge, pull bar is positioned at the intraskeletal one end of hands and is mounted by one end of extension spring and rotating plate, the other end and the thumb of rotating plate are connected, rotating plate and axostylus axostyle axis hole are rotationally connected, rod end and the hands skeleton of axostylus axostyle are connected, rotating plate return torsion spring axostylus axostyle is equipped with, two torsion ends of rotating plate return torsion spring mount with hands skeleton and rotating plate activity respectively, rear end and the pivoted arm of below-elbow socket are hinged, rear end and the upper arm cassette tape of pivoted arm are connected, the front end of pivoted arm is provided with hinge, one end and the hinge of power rail are hinged, the shaft of power rail is connected with the chamber activities of below-elbow socket, the other end of power rail is fixed with and pulls fork, pulls fork to be connected with the rod body movement of pull bar, pulls fork to mount with the convex edge activity of pull bar.

4. upper extremity prosthesis according to claim 3, is characterized in that: described power rail is made up of the torque arm be threaded and regulating arm.

5. upper extremity prosthesis according to claim 3, it is characterized in that: between hands skeleton and below-elbow socket, be lined with rubber blanket, described cored screw is equipped with the adjusting nut be threaded in the one end being positioned at below-elbow socket, adjusting nut crimps with the inner face activity of below-elbow socket.

6. upper extremity prosthesis according to claim 3, is characterized in that: hands skeleton is equipped with baffle plate, the rod end activity clamping of baffle plate and pull bar, and one end and the hands skeleton of baffle plate are hinged.