CN212592585U - Artificial limb - Google Patents

Abstract

A prosthesis comprising a socket assembly, a hand body, a connecting cord, a finger mechanism and a thumb; the receiving cavity assembly comprises a rotating piece and a sleeve piece, the rotating piece is rotatably connected with the sleeve piece, the sleeve piece is sleeved on an elbow arm of a patient, and the rotating piece is sleeved on a shoulder arm of the patient; one end of the finger mechanism is hinged on the hand main body, and the other end can swing; one end of the connecting rope penetrates through the sleeve and is connected to the rotating piece, and the other end of the connecting rope penetrates through the hand main body and is connected to the finger mechanism; the rotating piece is rotated to enable the connecting rope to pull the finger mechanism, so that the finger mechanism swings; the thumb is in spherical hinge with the hand main body and is provided with a plurality of fixing positions; the palm of the hand body is also provided with a magnetic part to adsorb the grab handle of the tool on the hand body. The patient can be directly with the instrument absorption that needs to use on the magnetic part, break off with the fingers and thumb again and swing the elbow arm and make finger mechanism crooked in order to grasp tight instrument grab handle, but the gripping of multiple instrument of adaptation and instrument and change convenience.

Description

Artificial limb

Technical Field

The utility model relates to an artificial limb field specifically is an artificial limb.

Background

In ordinary life, amputees lose both hands, which causes great troubles to normal life, for example, the amputees are inconvenient to hold knives, cut vegetables, stir-fry dishes and the like, or the amputees cannot hold bowls and chopsticks for eating, and usually wear artificial limbs to have more lost functions. In the prior art, most of artificial limb handheads have single functions, if other functions are needed, the artificial limb handheads need to be replaced, and the mounting structure of the handheads is complex, so that tools needed to be used cannot be replaced by patients, the grasping tools are quite inconvenient, and the problems of complex structure and operation exist.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the problems, the utility model provides a prosthetic limb, easy operation to make things convenient for gripping and change instrument.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a prosthesis comprising a socket assembly, a hand body, a connecting cord, a finger mechanism and a thumb; the receiving cavity assembly comprises a rotating piece and a sleeve piece, the rotating piece is rotatably connected with the sleeve piece, the handpiece main body is arranged at one end, far away from the rotating piece, of the sleeve piece, the sleeve piece is sleeved on an elbow arm of a patient, and the rotating piece is sleeved on a shoulder arm of the patient; one end of the finger mechanism is hinged on the hand main body, and the other end can swing; one end of the connecting rope penetrates through the sleeve and is connected to the rotating piece, and the other end of the connecting rope penetrates through the hand main body and is connected to the finger mechanism; the rotating piece is rotated to enable the connecting rope to pull the finger mechanism, so that the finger mechanism swings; the wrist body is provided with a clamping groove and a spherical groove communicated with the clamping groove, the palm of the wrist body is also provided with a magnetic part, the thumb is provided with a connecting rod, the bottom end of the connecting rod is also provided with a spherical joint, and the connecting rod penetrates through the clamping groove and enables the spherical joint to be in spherical hinge with the spherical groove; the connecting rod joint is on the screens groove to have a plurality of fixed positions.

Preferably, the artificial limb also comprises a sliding block, the finger mechanism comprises a plurality of finger components, the finger components consist of a plurality of sections of mutually hinged knuckles, the knuckles at the head end and the tail end are not connected, and the knuckle at the tail end is hinged with the hand main body; a cavity is arranged in the hand main body, a slide way is arranged in the cavity, and the slide block can be connected to the slide way in a sliding way; the connecting rope comprises a first rope and a second rope, one end of the first rope is connected to the rotating piece, the other end of the first rope is connected to the sliding block, the second rope is provided with a plurality of ropes, one ends of the second ropes are connected to the sliding block, the other ends of the second ropes are connected to the finger assemblies respectively, the second ropes penetrate from the tail end knuckle of the finger assembly, and the second ropes sequentially penetrate through the knuckle to be connected to the head end knuckle.

Preferably, the artificial limb further comprises an elastic rope, a first wire passing groove is formed in one side, facing the palm, of the hinged part of the knuckle, a second wire passing groove is formed in one side, facing the back of the hand, of the hinged part of the knuckle, the second rope penetrates through the first wire passing groove of the multi-section knuckle and then is connected with one side, facing the palm, of the head-end knuckle, one end of the elastic rope is connected to one side, facing the back of the hand, of the head-end knuckle, and the other end of the elastic rope penetrates through the second wire passing grooves of the multi-section knuckle in sequence.

Preferably, the artificial limb further comprises an adjusting piece, the sleeve is of an open-loop cylindrical structure, the adjusting piece is installed at one end, close to the hand main body, of the sleeve and matched with the sleeve to form a complete cylindrical structure, and the adjusting piece is made of a flexible material.

Preferably, the inside of the sleeve is provided with a flexible fabric layer.

Preferably, the retaining groove is an "L" shaped groove.

Preferably, a nail-shaped protrusion is arranged on the first-end knuckle.

Preferably, the thumb is also provided with a nail-shaped bulge.

Preferably, the finger assembly is further provided with a conductor on the knuckle at the head end, the second rope is connected to the conductor, the connecting rope can conduct electricity, and the conductor is in contact with the arm of the patient through the connecting rope.

Advantageous effects

The utility model has the advantages that: a prosthesis comprising a socket assembly, a hand body, a connecting cord, a finger mechanism and a thumb; the receiving cavity assembly comprises a rotating piece and a sleeve piece, the rotating piece is rotatably connected with the sleeve piece, the sleeve piece is sleeved on an elbow arm of a patient, and the rotating piece is sleeved on a shoulder arm of the patient; one end of the finger mechanism is hinged on the hand main body, and the other end can swing; one end of the connecting rope penetrates through the sleeve and is connected to the rotating piece, and the other end of the connecting rope penetrates through the hand main body and is connected to the finger mechanism; the rotating piece is rotated to enable the connecting rope to pull the finger mechanism, so that the finger mechanism swings; the thumb is in spherical hinge with the hand main body and is provided with a plurality of fixing positions; the palm of the hand body is also provided with a magnetic part to adsorb the grab handle of the tool on the hand body. The patient can be directly with the instrument absorption that needs to use on the magnetic part, break off with the fingers and thumb again and swing the elbow arm and make finger mechanism crooked in order to grasp tight instrument grab handle, but the gripping of multiple instrument of adaptation and instrument and change convenience.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 shows a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic view showing the connection of the hand body to the thumb and finger mechanism;

FIG. 3 is a schematic view showing a connection structure of a main body of a head and a thumb;

FIG. 4 shows a schematic view of the detent groove and the ball groove;

FIG. 5 shows an internal structural view of the body at hand;

FIG. 6 shows a back-of-hand directional schematic of the body at hand;

FIG. 7 shows another schematic view of the body at hand;

FIG. 8 shows a schematic view of the structure where the connecting string penetrates the sleeve;

fig. 9 shows one of the usage state diagrams of an embodiment of the invention;

FIG. 10 shows a state diagram of the embodiment of the present invention when gripping a tool;

in the figure, the socket assembly 1, the hand body 2, the connecting rope 3, the finger mechanism 4, the thumb 5, the sliding block 6, the elastic rope 7, the rotating part 10, the external member 11, the adjusting part 12, the clamping groove 20, the spherical groove 21, the magnetic part 22, the first rope 31, the second rope 32, the finger assembly 40, the knuckle 400, the connecting rod 50, the spherical joint 51, the first wire passing groove a, the second wire passing groove b and the conductor c are arranged.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-10, an artificial limb comprises an accepting cavity assembly 1, a hand main body 2, a connecting rope 3, a finger mechanism 4 and a thumb 5; the receiving cavity assembly 1 comprises a rotating piece 10 and a sleeve piece 11, the rotating piece 10 is rotatably connected with the sleeve piece 11, the hand head main body 2 is arranged at one end, far away from the rotating piece 10, of the sleeve piece 11, the sleeve piece 11 is sleeved on an elbow arm of a patient, and the rotating piece 10 is sleeved on a shoulder arm of the patient; one end of the finger mechanism 4 is hinged on the hand body 2, and the other end can swing; one end of the connecting rope 3 passes through the sleeve 11 and is connected to the rotating piece 10, and the other end passes through the hand main body 2 and is connected to the finger mechanism 4; the rotating piece 10 is rotated to enable the connecting rope 3 to pull the finger mechanism 4, so that the finger mechanism 4 swings; the palm body 2 is provided with a clamping groove 20 and a spherical groove 21 communicated with the clamping groove 20, the palm of the palm body 2 is also provided with a magnetic part 22, the thumb 5 is provided with a connecting rod 50, the bottom end of the connecting rod 50 is also provided with a spherical joint 51, and the connecting rod 50 passes through the clamping groove 20 and enables the spherical joint 51 to be in spherical hinge with the spherical groove 21; the connecting rod 50 is snapped on the snapping groove 20 and has a plurality of fixing positions.

Specifically, in the embodiment of the present invention, the rotating member 10 is annular and can be inserted into the shoulder arm of the patient, or fixed on the shoulder arm of the patient by using auxiliary tools such as hook and loop fasteners, straps, etc., the sleeve member 11 is sleeved on the elbow arm of the amputated limb of the patient, and the connecting rope 3 can be driven to be pulled by swinging the elbow arm, so as to bend the finger mechanism 4, and the magnetic member 22 for adsorbing the tool handle is arranged on the hand body 2, so as to effectively grasp the tool, wherein the utility model discloses a graspable tool includes a tool with a handle, such as a cutter, a wrench, a spoon, a shovel, etc., or an object with other shapes; in order to make the tool grip more firm, the thumb 5 can be pulled to make the thumb 5 abut on the tool, so as to further clamp the tool. It should be noted that, the sleeve 11 is provided with a clamping device at the connection point where the end of the sleeve is rotatably connected with the rotating member 10, so as to fix the position of the connecting rope 3 and keep the finger mechanism 4 in a bent state, and the handle of the tool may be made of iron material, or an object capable of being attracted by the magnetic member 22 may be adhered or embedded on the handle of the tool, for example, an iron sheet, a magnet, or the like may be embedded on the handle of the tool. When the tool is replaced, the thumb 5 is firstly separated from the tool grip, the elbow arm is swung back to reset the finger mechanism 4, the tool is directly pulled out and separated from the magnetic part 22, the next tool can be replaced, the whole process only needs one hand of a patient to operate, the tool can be replaced, and therefore the artificial limb is simple to operate and can be adapted to the use of various tools, is convenient to grasp, and can replace the tool by the patient.

Further, the artificial limb also comprises a sliding block 6, the finger mechanism 4 comprises a plurality of finger components 40, the finger components 40 are composed of a plurality of sections of knuckles 400 which are hinged with each other, the knuckles 400 at the head end and the tail end are not connected, and the knuckle 400 at the tail end is hinged with the hand main body 2; a cavity is arranged in the hand main body 2, a slide way is arranged in the cavity, and the slide block 6 can be connected to the slide way in a sliding way; the connecting rope 3 includes a first rope 31 and a second rope 32, one end of the first rope 31 is connected to the rotating member 10, the other end is connected to the slider 6, the second rope 32 is provided with a plurality of ropes, one end of each of the plurality of second ropes 32 is connected to the slider 6, the other end is connected to the plurality of finger assemblies 40, and the second rope 32 penetrates from the tail end knuckle 400 of the finger assembly 40 and sequentially penetrates through the plurality of knuckles 400 to be connected to the head end knuckle 400. The sliding block 6 is torn through the connecting rope 3 to drive the plurality of finger assemblies 40 to swing and bend towards the palm of the hand main body 2 at the same time.

Furthermore, the artificial limb also comprises an elastic rope 7, a first wire passing groove a is arranged on one side of the hinged part of the knuckle 400 facing the palm, a second wire passing groove b is arranged on one side facing the back of the hand, the second rope 32 passes through the first wire passing groove a of the multi-section knuckle 400 and then is connected with the first end knuckle 400 facing the palm, one end of the elastic rope 7 is connected with the first end knuckle 400 facing the back of the hand, and the other end of the elastic rope sequentially passes through the second wire passing grooves b of the multi-section knuckle 400 and then is connected with the hand main body 2. By arranging the elastic rope 7 in the direction of the back of the hand to pull the head end knuckle 400, the finger assembly 40 can be automatically reset through the elastic force of the elastic rope 7 after the finger assembly 40 is pulled by the connecting rope 3 to bend towards the palm direction.

Furthermore, the artificial limb further comprises an adjusting piece 12, the sleeve 11 is of an open-loop cylindrical structure, the adjusting piece 12 is installed at one end, close to the hand main body 2, of the sleeve 11 and matched with the sleeve 11 to form a complete cylindrical structure, the adjusting piece 12 is made of a tough material and has certain elastic deformation capacity, and adjustment can be carried out according to the thickness of the arm of a patient.

Furthermore, the flexible fabric layer is arranged on the inner side of the sleeve 11, so that the elbow of the patient can be prevented from being in rigid abutment with the hard sleeve 11 when the arm of the patient swings or bends for a long time, and discomfort in use can be avoided.

Furthermore, the locking groove 20 is an "L" shaped groove, and a plurality of protrusions are disposed in the locking groove 20, and each protrusion can cooperate with the locking groove 20 to fix the position of the connecting rod 50, and the thumb 5 is pushed by external force to force the connecting rod 50 to pass over the protrusion, so that the thumb 5 can enter the next fixing position, and the thumb 5 can be adapted to tool grips of various shapes.

Further, the first knuckle 400 is provided with a nail-shaped protrusion, and the thumb 5 is provided with a nail-shaped protrusion for clamping small objects, such as nails, screws, and the like.

Further, a conductor c is further arranged on the first-end knuckle 400 of the finger assembly 40, the second rope 32 is connected to the conductor c, the connecting rope 3 can conduct electricity, the conductor c is in contact with the arm of the patient through the connecting rope 3, and the intelligent touch screen device can be used through the conductor c.

It should be noted that the finger mechanisms and the side of the hand body facing the palm of the hand may also be provided with an anti-slip layer, such as a rubber layer patch, to increase the friction between the prosthesis and the tool grip, thereby further increasing the stability of the tool when held.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. A prosthetic limb is characterized by comprising an accepting cavity component (1), a hand head main body (2), a connecting rope (3), a finger mechanism (4) and a thumb (5);

the accepting cavity assembly (1) comprises a rotating piece (10) and a sleeve piece (11), the rotating piece (10) is rotatably connected with the sleeve piece (11), the hand head main body (2) is installed at one end, far away from the rotating piece (10), of the sleeve piece (11) is sleeved on an elbow arm of a patient, and the rotating piece (10) is sleeved on a shoulder arm of the patient;

one end of the finger mechanism (4) is hinged on the hand main body (2), and the other end can swing; one end of the connecting rope (3) penetrates through the sleeve (11) and is connected to the rotating piece (10), and the other end of the connecting rope penetrates through the hand main body (2) and is connected to the finger mechanism (4);

the rotating piece (10) is rotated to enable the connecting rope (3) to pull the finger mechanism (4), so that the finger mechanism (4) swings;

the hand head main body (2) is provided with a clamping groove (20) and a spherical groove (21) communicated with the clamping groove (20), the palm of the hand head main body (2) is further provided with a magnetic part (22), the thumb (5) is provided with a connecting rod (50), the bottom end of the connecting rod (50) is further provided with a spherical joint (51), and the connecting rod (50) penetrates through the clamping groove (20) and enables the spherical joint (51) to be in spherical hinge with the spherical groove (21); the connecting rod (50) is clamped on the clamping groove (20) and is provided with a plurality of fixing positions.

2. A prosthesis according to claim 1, further comprising a slider (6), said finger mechanism (4) comprising a plurality of finger assemblies (40), said finger assemblies (40) being formed of a plurality of knuckles (400) hinged to each other, and said knuckles (400) at the fore and aft ends being unconnected, said knuckle (400) at the aft end being hinged to the hand body (2);

a cavity is arranged in the hand main body (2), a slide way is arranged in the cavity, and the slide block (6) can be connected to the slide way in a sliding manner; connect rope (3) including first rope (31) and second rope (32), the one end of first rope (31) is connected on rotating piece (10), and the other end is connected on slider (6), second rope (32) are equipped with many, and many second rope (32) one end all is connected with slider (6), the other end connect respectively in on a plurality of finger subassembly (40), and second rope (32) penetrate from finger subassembly (40) tail end knuckle (400), pass multisection knuckle (400) in proper order in order to connect on head end knuckle (400).

3. A prosthetic limb according to claim 2, further comprising a bungee cord (7), wherein a first thread passing groove (a) is formed in one side, facing the palm, of the hinged position of the knuckle (400), a second thread passing groove (b) is formed in one side, facing the back of the hand, of the hinged position of the knuckle (400), the second cord (32) penetrates through the first thread passing groove (a) of the multi-section knuckle (400) and then is connected with the first end knuckle (400) facing the palm, one end of the bungee cord (7) is connected to one side, facing the back of the hand, of the first end knuckle (400), and the other end of the bungee cord penetrates through the second thread passing grooves (b) of the multi-section knuckle (400) in sequence and then is connected with the hand main body (2).

4. A prosthetic device according to claim 1, further comprising an adjusting member (12), said sleeve member (11) being an open-loop tubular structure, said adjusting member (12) being mounted to the sleeve member (11) at an end thereof adjacent to the hand body (2) and cooperating with the sleeve member (11) to form a complete tubular structure, said adjusting member (12) being made of a flexible material.

5. A prosthesis according to claim 1, characterised in that the sleeve (11) is internally provided with a layer of flexible fabric.

6. A prosthetic according to claim 1, characterised in that said detent (20) is an "L" shaped slot.

7. A prosthetic according to claim 2, wherein said first end knuckle (400) is provided with a nail-like projection.

8. A prosthetic according to claim 1, characterised in that a fingernail-like projection is provided on the thumb (5).

9. A prosthesis according to claim 2, wherein the finger assembly (40) further comprises a conductor (c) at the head end knuckle (400), the second cord (32) being connected to the conductor (c), the connecting cord (3) being electrically conductive, and the conductor (c) being in contact with the arm of the patient via the connecting cord (3).

Images