WO2006118149A1

WO2006118149A1 - Artificial leg

Info

Publication number: WO2006118149A1
Application number: PCT/JP2006/308755
Authority: WO
Inventors: Yasuyoshi Saiga
Original assignee: Yasuyoshi Saiga
Priority date: 2005-04-28
Filing date: 2006-04-26
Publication date: 2006-11-09
Also published as: JP3873076B2; JP2006305123A

Abstract

[OBJECT] To realize an artificial leg having such a readiness that can be used immediately after manufacture since a time for adjustment after manufacture is not required, low in weight and cost, preventing physical load from applying onto affected parts, excellent in stability when legs are opened, allowing a user to easily keep a walking balance, and less providing a stride stress and a sense of incongruity during running to the user. [CONSTRUCTION] This artificial leg is characterized by comprising a pivot shaft (1) supporting the weight of the user along the affected side of a body, a support lever (2) fitted to the pivot shaft (1) and used to keep the balance of the weight of the user by gripping it by one hand, and a mounting means formed of a frame (3), a harness sheet (4), a waist belt (5), a suspension belt (6), and a connection part (7) which mounts the pivot shaft (1) on the body of the user to distribute a load on the pivot shaft.

Description

Specification

Artificial leg

Technical field

TECHNICAL FIELD [0001] The present invention relates to a prosthetic leg, and more particularly to a prosthetic leg that can be widely used by many users and can be used in a short walking training period.

Background art

[0002] Conventional prosthetic legs are mostly made to order according to the user's obstacle position (cutting site) and height, and therefore it takes a long time of about 3 months from mold making to delivery. However, it had the problem of being expensive. Furthermore, the conventional prosthetic leg is a type in which a cut end (cutting part) is inserted into a cylindrical part called a socket provided on the upper part of the prosthetic leg, so that the position of about 55 to 58% of the height, that is, the first sacral spine Since it is necessary to balance walking at the point of action lower than the center of gravity near the center of the pelvis at the front edge, it is difficult to balance, and it is necessary to support the weight load at the cut end, so physical The burden was heavy and long-term walking training was required after wearing. Another problem was that new prosthetic legs had to be prepared as they grew up. In addition, prosthetic leg manufacturing personnel required a national qualification license, which was also an obstacle in terms of delivery time and price.

[0003] As means for solving such a problem, for example, a saddle-type artificial leg in which a saddle is provided at the inseam and fixed with a belt has been reported (for example, see Patent Document 1). The schematic diagram of the use condition of the saddle type artificial leg of is shown.

In this prosthetic leg, a saddle 12 used for a unicycle is fixed to a top end of a support shaft 11 in which a rotatable slide tube is rotatably inserted into a fixed sheath tube and the height can be adjusted with an adjustment pin. A tightening band 15 is provided at the lower part of the shaft, and a traction belt 16 for pulling the saddle 12 upward and a waist belt 17 for holding the traction belt 16 at the waist are provided by this method. No rehabilitation is required, as there is no physical burden on the affected area. In addition, since the ready-made product can be adjusted and used, it can be used on either the left or right side, the height can be easily adjusted, the production adjustment period is not required, it is responsive, and It can be offered at a low price (about 1Z8 in the past)!

However, this saddle-type prosthetic foot must be balanced at a position lower than the center of gravity, so when the legs are opened, the actual step length is smaller than the step length intended by the user with less stability, and the walking is uncomfortable. There were some problems (see Patent Document 1).

Patent Document 1: Japanese Patent Laid-Open No. 2002-34717

Disclosure of the invention

Problems to be solved by the invention

[0004] In order to solve the above-mentioned problems of the conventional artificial leg, the inventor previously proposed a ready-made and versatile prosthetic leg having a support shaft, a mounting means, a body weight support means, and a fixing means. did. The present invention proposes an existing prosthetic leg that further improves this proposal and is more stable in terms of weight distribution and balance.

The present invention solves the problem of the conventional artificial leg by a relatively simple method, has a quick response that does not require time for production adjustment, can be used immediately, is lightweight and inexpensive, and is physically attached to the affected area. The challenge is to realize a prosthetic leg that is not burdensome, has excellent stability at the time of opening legs, and has a stride stress that makes it easy to take a walking balance and less discomfort during running. Means for solving the problem

[0005] In order to solve the above-mentioned problem, the prosthetic foot according to claim 1 of the present invention includes a support shaft for supporting body weight along the body side of the handicapped side, and is provided on the support shaft and grasped with one hand. A support lever for balancing the weight applied to the support shaft and balancing the walking; and mounting means for mounting the support shaft on a part of a user's body and distributing the force applied to the support shaft. To do.

[0006] In order to solve the above-described problem, the invention according to claim 2 of the present invention is the prosthetic foot according to claim 1, wherein the mounting means is a waistband means that is fixed to the waist and releases the force exerted on the support shaft. And a connecting means for connecting the waistband means and the support shaft.

[0007] In order to solve the above-mentioned problem, the invention according to claim 3 of the present invention is the prosthetic foot according to claim 1, wherein the mounting means is on the thigh on the handicapped side or both thighs. It is characterized by having outfitting fixing means configured to wind around each of the parts and fix the support shaft. [0008] In order to solve the above-mentioned problem, the invention according to claim 4 of the present invention is the prosthetic foot according to claim 1, wherein the mounting means is fixed to the support shaft and applies a force applied to the support shaft to the body. It is characterized by having a buffer means for dispersing in a wide range.

[0009] In order to solve the above-mentioned problem, the invention according to claim 5 of the present invention is the prosthetic foot according to claim 1, wherein the mounting means includes two annular portions that arrive at the bases of the thighs of both legs. It has an annular fixing means to be provided.

[0010] In order to solve the above problems, the invention according to claim 6 of the present invention is configured such that one of the annular portions of the annular fixing means is wound around the thigh in the artificial leg according to claim 5. It is characterized by the fact that it is replaced by the provided outfitting fixing means.

[0011] In order to solve the above-mentioned problem, the invention according to claim 7 of the present invention is the prosthetic foot according to claim 1, wherein the mounting means is a seat portion provided on the upper portion of the support shaft so as to be seatable. It is characterized by having.

[0012] In order to solve the above-mentioned problems, the invention according to claim 8 of the present invention is characterized in that the mounting means is a suspension means for connecting the waistband means and the other part of the mounting means in the artificial leg according to claim 2. It is characterized by having.

[0013] In order to solve the above-described problem, the invention according to claim 9 of the present invention is the prosthetic foot according to any one of claims 1 to 8, wherein the support shaft is located below the inside of the body. It is configured such that a portion that is curved or bent toward the ground and is in contact with the ground at the tip of the support shaft is positioned below the center of gravity of the body.

[0014] In order to solve the above-mentioned problem, the invention according to claim 10 of the present invention is the prosthetic foot according to any one of claims 1 to 9, wherein the support shaft is a knee. It is characterized by having knee joint means that allows bending in position.

[0015] In order to solve the above-mentioned problems, the invention according to claim 11 of the present invention is the prosthetic leg according to claim 1 to claim 10, wherein the support shaft is a waist. It has a waist joint means that enables bending in position.

[0016] In order to solve the above-mentioned problem, the invention according to claim 12 of the present invention is the prosthetic foot according to any one of claims 1 to 11, wherein the support shaft is It has a length adjusting means capable of adjusting the length. [0017] In order to solve the above-mentioned problem, the invention according to claim 13 of the present invention is the prosthetic foot according to any one of claims 1 to 12, wherein the support lever is attached to the support shaft. It is characterized in that it can be folded.

[0018] In order to solve the above-described problem, the invention according to claim 14 of the present invention is the prosthetic foot according to any one of claims 1 to 13, wherein the support lever is located with respect to the support shaft. And can be fixed at an arbitrary angle.

[0019] In order to solve the above-mentioned problem, the invention according to claim 15 of the present invention is the prosthetic foot according to any one of claims 1 to 14, wherein the support lever extends along the support shaft. It is characterized in that the height position can be adjusted.

The invention's effect

[0020] As described above, the prosthetic leg according to the present invention has a support shaft for supporting weight along the body side of the handicapped side, and is provided on the support shaft and is grasped with one hand to distribute the weight and balance the walking. The support lever and the mounting means for mounting the support shaft on the user's body. With this,

1) Since the action point is set at a position higher than the center of gravity, it can be used in a walking training period with extremely short walking balance.

2) Versatile, does not require mold making by specialists, and does not require national qualification for manufacturing, so it can be mass-produced in advance and can be manufactured at low cost.

3) Since the weight is supported outside the affected area, the burden is not applied to the affected area, and the cut end that is the affected area does not hurt or cause inflammation.

4) The length of the user can be adjusted by the user as the body grows, and it is not necessary to remake it every few years, unlike the conventional one.

Benefits such as are born. In addition, it is possible to select a plurality of methods in which the wearing means can be selected depending on the state of the affected area of the user and the use conditions, so that an artificial leg suitable for the user can be realized.

In addition, the knees and hips are provided with a bend and a telescopic part that adjusts the length. In addition, since the structure is simple and can be worn on the outside of the thigh, it is excellent in stability when the legs are opened, and it has the effect of reducing stride stress and uncomfortable feeling during running. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is an explanatory diagram showing a distribution state of body weight with respect to height in a human body, and a schematic configuration of a conventional artificial leg and an artificial leg of the present invention. In FIG. 1, reference numeral 1 is a support shaft, reference numeral la is a knee joint, reference numeral Id is a foot, reference numeral 2 is a support lever, reference numeral 3 is a frame, reference numeral 5 is a waist belt, reference numeral 8 is a waist bracket, reference numeral 18 is Socket, sign 19 is the knee joint, sign 20 is the foot. The center of gravity A of the human body is approximately 55 to 58% of the height, that is, near the center of the pelvis at the front edge of the first sacral spine, and is lower than this center of gravity in the conventional artificial leg shown in Fig. 1 (a). Walking balance was achieved at the point of action at the position. This required long-term walking training after wearing, which is difficult to balance. Moreover, since it is necessary to support the weight load at the cut end in the socket 18, there is a problem that the physical burden is large.

On the other hand, in the artificial leg of the present invention shown in FIG. 1 (b), which will be described in detail later, the point of action is at the position B of the waist belt 5 corresponding to a height of about 63% of the height, and the support lever 2 Since the point of action moves to the shoulder position C when the hand is held, there is an advantage in that the weight is not widely distributed but is widely dispersed and easily balanced.

[0023] Fig. 2 shows a schematic diagram of a usage situation of the embodiment of the prosthetic leg of the present invention. In order to support the weight, in addition to the support lever, the harness sheet wound around the thigh (corresponding to the outfitting fixing means of claim 3) and the suspension belt that supports it (the suspension means of claim 8) This is an example using Fig. 2 shows the case where the user uses a lower leg amputation. In FIG. 2, reference numeral 1 is a support shaft, reference numeral la is a knee joint device (corresponding to the knee joint means of claim 10), reference numeral lb is an adjustment tube (constituting adjustment means of claim 12), and reference numeral lc is a slide. Pipe (which constitutes the adjusting means of claim 12), symbol Id is a foot, symbol le is a hip joint (corresponding to the hip joint means of claim 11), symbol 2 is a support lever, symbol 3 is a frame (invoice) No. 4 is a harness seat, No. 5 is a waist belt (corresponding to the waist belt means of claim 2), No. 6 is a suspension belt, and No. 7 is a connecting portion (connecting means of claim 2). The symbol 8 is a waist bracket.

[0024] The support shaft 1 is formed of a hollow pipe made of metal such as an aluminum alloy and is slid on the control pipe lb. It is designed to be able to adjust the height with an adjustment pin by inserting the tube lc in a rotatable manner, and has the strength to support the weight of the user during walking. Since the support shaft 1 is configured in this way, the entire length of the support shaft 1 can be freely adjusted according to the height of the user, and it can correspond to both the left and right feet.

[0025] The knee joint device la is configured to fix the support shaft 1 straight during walking, and to be able to be bent into a hinge shape at this portion when resting. The hip 1 is fixed so that the pivot 1 and the connecting part 7 are fixed straight during walking, and can be bent at this position when resting. The knee joint device la can be used with a commercially available knee joint.

FIG. 3 is a side view of the prosthetic leg in use when seated. By folding the hip joint device le in A in the figure and the knee joint device la in B in the figure, the foot Id of the support shaft 1 can be positioned below the knee, so that it can sit comfortably without taking up space. In addition, C in the figure shows a state where the height can be adjusted by inserting the slide tube 1 c into the adjustment tube lb of the support shaft 1.

[0026] The foot portion Id of the support shaft 1 is made of a relatively soft material such as rubber or plastic, and forms a portion of the support shaft 1 in contact with the ground. The foot Id is configured to be exchangeable with respect to the support shaft 1 and can be used by attaching to the support shaft 1 what is generally marketed as a prosthetic leg member. It is also possible to replace it according to the purpose, such as the one for use or the one with increased sliding friction. As shown in Fig. 4, the foot Id can be bent at an arbitrary angle with respect to the support shaft 1 and has an easy structure for walking.

[0027] As shown in Fig. 5 (a), the connecting portion 7 is connected to the waist belt 5 by a waist bracket 8, and when walking, the waist bracket 8 is connected to the shaft as shown in Fig. 5 (b). The part 7, the hip joint le and the support shaft 1 swing back and forth in a continuous configuration. As a result, the pressure applied to the support shaft 1 is distributed to the waist belt 5, and the support shaft 1 is attached to the outside of the thigh and moves along the thigh during walking. Therefore, the stability at the time of walking and the standing leg is high when the top end of the support shaft 1, the connecting portion 7, the support lever 2 and the like do not disturb the walking. The connecting portion 7 is made of reinforced plastic or metal, and has sufficient strength and absorbs shock.

The waist bracket 8 can be detachably attached to the waist belt 5. As shown in Fig. 6 (a) In addition, the connecting portion 7 can be adjusted in length 1, Γ with respect to the waist bracket 8 and, as shown in FIG. It is configured so that Θ can be adjusted.

[0028] As shown in FIGS. 7 (a), 7 (b), 8 (a), and 8 (b), the frame 3 is a support unit integrally formed with the harness seat 4 and is attached to the support shaft 1. It is attached so that it can move up and down together with the harness seat 4 and works to closely attach the support shaft 1 to the body side and to soften the contact of the support shaft 1 with the body side. The frame 3 may be provided with cushioning material on the harness sheet 4 side. As shown in FIGS. 8 (a) and 8 (b), the frame 3 is attached to the support shaft 1 on the body side between the knee joint device la and the hip joint device le. Alternatively, as shown in FIG. 8 (c), the frame 3 may be integrated with the hip joint device le or the knee joint device la.

[0029] The harness sheet 4 is wound around the thigh so that the frame 3 and the support shaft 1 are along the body side. The harness sheet 4 may be wound around one leg as shown in FIG. 9 (a) or wound around both legs as shown in FIG. 9 (b). In addition, as shown in FIG. 9 (c), as a simple type, a bag-like harness 4b that squeezes into the crotch portion and a suspension belt 6a, 6b passed through may be used in place of the harness sheet 4.

[0030] The harness sheet 4 is made of fabric and leather, such as canvas, which is strong and easily absorbs sweat, and is formed with a belt as shown in Fig. 10 (a) or a hook-and-loop fastener as shown in Fig. 10 (b). The structure is tightened. Figure 10 (c) shows the overall shape of the hook-and-loop harness sheet 4.

[0031] A suspension belt 6 is attached to the harness sheet 4, and the other end of the suspension belt 6 is connected to the connecting portion 7, the waist bracket 8 or the waist belt 5. As a result, the pressure applied to the support shaft 1 can be distributed from the knee sheet 4 to the thigh and the waist through the waist belt 5. The suspension belt 6 is formed of reinforced plastic, synthetic fiber, leather, or the like, like the connecting portion 7. The suspension belt 6 can be fixed to the harness sheet 4 with a force that can be applied by sewing or eye-opening. Is also possible. Figure 11 shows a design example of the shape of the end of the suspension belt 6. Although the shape of the end of the suspension belt 6 is not particularly defined, it should be shaped so as to be in close contact with the thigh and the buttocks so as to disperse the load and avoid partial application of force. [0032] The waist belt 5 plays a role in receiving pressure from the suspension belt 6 and the connecting portion 7 through the waist metal fitting 8 and dispersing it at the waist. Wearing a belt on the waist is relatively natural and the user is used to it, so there is little physical burden even if force is applied to this part. The belt of the waist belt 5 is made of leather or fiber.

As shown in FIG. 12 (a), the support lever 2 is attached to the support shaft 1 between the knee joint device la and the hip joint device le. The position can be adjusted up and down according to the length of the user's arm, as shown in Fig. 12 (b). Further, as shown in FIG. 13 (a) as seen from above, it is configured to be able to rotate back and forth in a plane parallel to the spindle 1 and to be fixed at that position. Alternatively, it is not limited to a horizontal plane and may be configured to be fixed at an arbitrary angle with respect to the support shaft 1. Further, as shown in FIG. 13 (b), it is possible to fold along the support shaft 1 so that the support lever 2 is not used, and sometimes it can be folded up and out of the way! /. Further, as shown in FIG. 13 (c), the support lever 2 may be configured integrally with the hip joint le, and the height may be adjusted by adjusting the overall length of the support shaft 1 and the length of the connecting portion 7. .

The support lever 2 is represented as a straight bar projecting to the body side in the above-described drawings. However, as shown in Fig. 14, it is composed of a straight bar (a) projecting to the body side, a straight bar projecting forward on the body side (b), a bar bent at a right angle (c), and a T-shape. It is easy to hold and support with a stick (d) etc.! Various deformation designs are also possible.

[0034] Since the present embodiment is configured as described above, it can be manufactured as an off-the-shelf product with high versatility and at a low cost. Karana V can provide prosthetic legs.

FIG. 15 shows a schematic diagram of the usage situation of another embodiment of the present invention. This method is an example in which, in order to support the body weight, in addition to the support lever, a claw ring-shaped knives, one ness, and a suspension belt for supporting it are used on the thighs of both legs. Although FIG. 15 shows a case where it is used for a user who cuts a lower leg, it can also be used for a user who uses a symtomy or a thigh. In FIG. 15, reference numeral 1 is a support shaft, reference numeral 2 is a support lever, reference numeral 3 is a frame, reference numeral 4 is a harness seat, reference numeral 4a is a fixing belt, reference numeral 5 is a waist belt, reference numeral 6 is a suspension belt, and reference numeral 8 is a waist bracket. Numeral 9 is a ring-shaped groove and oneness (corresponding to the ring-shaped fixing means of claim 5).

In this embodiment, the support shaft 1, support lever 2, frame 3, waist belt 5 and waist bracket 8 For example, the same one as shown in the embodiment of FIG. 2 can be used. This embodiment differs from that of FIG. 2 in that the harness seat 4 only serves to bring the support shaft 1 closer to the body side, and the pressure applied to the support shaft 1 is mainly the waist belt 5, the waist bracket 8, the connecting portion 7 and It is a point that is distributed in a ring-shaped ring and one nesting. Therefore, the pressure is distributed on both sides of the body, and the burden on the disabled side is not particularly large.

In FIG. 15, the suspension belt 6 may be connected to the waist bracket 8, and the partial force of both wheels of the ring-shaped noiselessness 9 may be connected to the waist belt 5. FIG. 16 is an extracted diagram showing the relationship between the ring-shaped noise 9 and the suspension belt 6 so as to make it easier to apply the force. The suspension belt 6 is connected to the waist bracket 8 side.

FIG. 17, FIG. 18 and FIG. 19 show specific examples of the connection of the annular noise 9, the suspension belt 6 and the waist belt 5 when the annular noise 9 is suspended by the suspension belt 6. FIG. 17 shows the front force, FIG. 18 shows the rear force, and FIG. 19 shows an example in which the tip of the suspension belt 6 is divided into two.

Note that in Fig. 15, the force is applied to remove the annular noise 9 on the thighs of both legs. As shown in Fig. 20, one leg (the leg on the cutting side) is replaced with the harness seat 4 instead of the annular noise 9. May be.

[0039] Since this embodiment is also configured as described above, as in the embodiment shown in FIG. 2, the versatile body weight is dispersed, and the affected part is easy to maintain a walking balance. Prosthetic legs can be provided at low cost without burden.

FIG. 21 shows a schematic diagram of a usage situation of still another embodiment of the present invention. This method is an example in which a saddle-type stool is used in addition to the support lever to support the weight. FIG. 21 shows the case where the left foot is used for a user who also lacks the root force. In FIG. 21, reference numeral 1 is a support shaft, reference numeral lg is a regulator, reference numeral If is a horizontal tube, reference numeral 2 is a support lever, reference numeral 4 is a harness seat, reference numeral 5 is a waist belt, reference numeral 6 is a suspension belt, reference numeral Reference numeral 8 denotes a waist bracket, reference numeral 10 denotes a saddle (corresponding to the seating portion of claim 7), reference numeral 10a denotes a saddle fixing belt, and reference numeral 1 Ob denotes a saddle auxiliary plate.

[0041] In this embodiment shown in Fig. 21, a saddle (seat base) 10 used for a bicycle, a unicycle or the like is used for weight maintenance to support the weight load. In addition to the impaired thigh The base part is wrapped with a noise sheet 4 and the suspension belt 6 is used together.

In this form, the adjuster lg adjusts the length of the horizontal pipe If to change the position of the saddle 10 between the crotch, the support shaft 1 and the support lever 2 to make it easier to balance when standing. Furthermore, by integrating the saddle 10 provided between the crotch and the support shaft 1, the physical burden of the user when standing can be reduced.

[0042] According to this embodiment, the highly versatile body weight is dispersed and the walking balance is easy to be taken, the burden on the foot when standing can be reduced, and the physical burden on the affected area can be reduced. Prosthetic legs that are not expensive can be provided at a low price.

[0043] By the way, while walking, a human tries to align the center of gravity A of the body and the center axis of the foot Id on a vertical line. For this reason, as shown in FIG. 22, a force X that expands toward the outside of the body acts on the artificial leg. Figure 23 shows an example of a belt that is provided so that the prosthetic foot is pulled inward against this force X. By pulling the spindle 1 to the waist belt (a), the crotch (b), or the waist (c) on the opposite side with the belt in this way, the center of gravity can be easily adjusted on the foot and walking can be facilitated. . Further, the support shaft 1 can be bent or curved in advance, and the center of gravity of the body can be positioned on the vertical line of the central axis of the foot Id. Figures 24 and 25 show an example in which the support shaft is bent one time. FIG. 24 shows an example of bending at a portion above the knee joint device la, and FIG. 25 shows an example of bending at a portion below the knee joint device la. By doing so, it is possible to balance walking without feeling nervous and to walk easily.

Industrial applicability

[0044] Since the prosthetic leg of the present invention is configured as described above, it can be prepared as an off-the-shelf product that is related to the obstacle site, the height of the user, etc., and can be used for general purposes. Therefore, it can be widely used by any person in any place in the world. Furthermore, since it is responsive, it can be used for temporary use until there is a problem in the affected area or a custom-made prosthesis is completed.

Brief Description of Drawings

[0045] FIG. 1 is an explanatory diagram showing a distribution of weight with respect to height in a human body, and a schematic configuration of a conventional artificial leg and a prosthetic leg of the present invention. 圆 2] It is a schematic diagram of a usage situation of an embodiment of a prosthetic leg of the present invention.

圆 3] It is a side view of the usage state when the artificial leg of the present embodiment is seated.

圆 4] It is explanatory drawing which shows the bending state of the support shaft and foot part of the artificial leg of this Embodiment.

[5] FIG. 5 is an explanatory view showing the connection relationship between the joint portion of the artificial leg, the waist bracket, the waist belt, and the support shaft of the present embodiment.

圆 6] It is explanatory drawing which shows the adjustment condition of the connection part of the artificial leg of this Embodiment.

[7] FIG. 7 is an explanatory diagram showing the positional relationship between the support shaft, the frame, and the harness seat of the prosthetic leg of the present embodiment.

FIG. 8 is an explanatory view showing a state of attachment of the prosthetic leg frame and the tine seat to the support shaft of the present embodiment.

圆 9] It is explanatory drawing which shows the attachment conditions, such as a harness sheet | seat of the artificial leg of this Embodiment.

FIG. 10 is a diagram showing a configuration of a harness sheet for an artificial leg according to the present embodiment.

FIG. 11 is a view showing the shape of the end portion of the suspension belt for the artificial leg of the present embodiment.

[12] FIG. 12 is an explanatory diagram showing the attachment position of the support lever of the artificial leg of the present embodiment and the adjustment method thereof.

圆 13] It is explanatory drawing which shows the attachment angle etc. of the support lever of the artificial leg of this Embodiment.圆 14] It is explanatory drawing which shows some deformation | transformation regarding the support lever of the artificial leg of this Embodiment.

[15] FIG. 15 is a schematic view of a usage situation of another embodiment of the artificial leg of the present invention.

FIG. 16 is a diagram showing a connection between the annular noise of the artificial leg and the suspension belt of the present embodiment.

FIG. 17 is a view of a specific example of the connection of the annular knee of the prosthetic leg, the suspension belt, and the waist belt according to the present embodiment.

FIG. 18 is a view of a specific example of the connection between the annular knee of the artificial leg, the suspension belt, and the waist belt according to the present embodiment.

FIG. 19 is a diagram showing a case where the tip of the suspension belt is divided into two forks in a specific example of the connection of the annular knee of the artificial leg, the suspension belt, and the waist belt of the present embodiment.

FIG. 20 is a schematic diagram of a usage situation of still another embodiment using the annular noise of the artificial leg and the harness sheet of the present embodiment. FIG. 21 is a schematic view of a usage situation of still another embodiment of the artificial leg of the present invention.

FIG. 22 is an explanatory diagram of the force acting in the lateral direction of the artificial leg.

FIG. 23 is an explanatory view showing an example of a belt that resists a force acting in the lateral direction used in the artificial leg of the present invention.

FIG. 24 is an explanatory diagram of an example in which the support shaft of the artificial leg of the present invention is bent.

FIG. 25 is an explanatory view of an example in which the support shaft of the artificial leg of the present invention is bent.

FIG. 26 is a schematic view of a conventional saddle-type prosthetic leg usage situation.

Explanation of symbols

1 Spindle

la knee joint

lb control tube

lc slide tube

Id foot

le hip joint

lg regulator

If horizontal tube

2 Support lever

3 frames

4 Knowness sheet

4a Fixed benolet

4b Bag-shaped harness

5 waist belt

6, 6a, 6b Suspended bell

7 Connecting part

8 Waist bracket

9 Ring harness

10 saddle

10a Saddle fixing belt Saddle auxiliary plate Support shaft Saddle Tightening band Towing belt Waist belt Socket Knee joint Foot

Claims

The scope of the claims

[I] a spindle supporting weight along the body side of the handicapped side,

A support lever that is provided on this support shaft and distributes the weight exerted on this support shaft by holding it with one hand to balance walking,

A prosthetic leg comprising: an attaching means for attaching the support shaft to a part of a user's body and distributing a force applied to the support shaft.

[2] The prosthetic leg according to claim 1, wherein the mounting means includes waistband means that is fixed to the waist and releases force applied to the support shaft, and connection means that connects the waistband means and the support shaft.

[3] The mounting means includes an outfitting fixing means configured to fix the support shaft by being attached to the thigh on the handicapped side or both of the thighs. The artificial leg according to claim 1.

4. The prosthetic foot according to claim 1, wherein the mounting means includes a buffer means that is fixed to the support shaft and distributes a force applied to the support shaft over a wide range of the body.

5. The prosthetic foot according to claim 1, wherein the mounting means includes a ring-shaped fixing means having two ring-shaped portions that arrive at the bases of the thighs of both legs.

6. The prosthetic foot according to claim 5, wherein one of the ring-shaped portions of the ring-shaped fixing means is replaced with a rigging fixing means configured to wrap around the thigh.

7. The prosthetic foot according to claim 1, wherein the mounting means has a seat portion provided on an upper portion of the support shaft so as to be seated.

8. The artificial leg according to claim 2, wherein the mounting means includes a suspension means that connects the waistband means and the other part of the mounting means.

[9] The support shaft is configured such that a lower portion is curved or bent toward the inside of the body, and a portion in contact with the ground surface of the support shaft tip is located below the center of gravity of the body. The artificial leg according to any one of claims 1 to 8.

10. The artificial leg according to any one of claims 1 to 9, wherein the support shaft includes knee joint means that enables bending at a knee position.

11. The artificial leg according to any one of claims 1 to 10, wherein the support shaft includes waist joint means that enables bending at a waist position.

12. The prosthetic foot according to any one of claims 1 to 11, characterized in that the support shaft has length adjusting means capable of adjusting its length.

13. The artificial leg according to claim 1, wherein the support lever is configured to be foldable along the support shaft.

[14] The artificial leg according to any one of claims 1 to 13, wherein the support lever is configured to be fixed at an arbitrary angle with respect to the support shaft.

15. The artificial leg according to any one of claims 1 to 14, wherein the support lever is configured to be capable of adjusting a height position along the support shaft.