KR20190025189A - Hucklebone supporting type artificial leg - Google Patents

Abstract

The present invention provides an artificial leg-type crutch capable of a walking motion divided into heel contact, midfoot contact, and forefoot contact, comprising: a support for supporting a thigh or arm; a forefoot which is installed at the lower end of the support and has upward propulsive force frontward; and a rear foot which rolls and rotates in the rear of the forefoot. When a heel touches the ground for a first time during walking, the rear foot rolls and rotates, and resistance is minimized in the forward direction during a stepping motion of the heel on the ground, so that the forefoot naturally steps on the ground. When the forefoot steps on the ground and the midfoot and the forefoot touches the ground, the forefoot is flexibly bent to generate force to leap by elastic force.

Description

HUCKLEBONE SUPPORTING TYPE ARTIFICIAL LEG}

The present invention relates to an arm prosthetic crutch, and more particularly, to an arm prosthetic crutch that improves the leverage by using an elastic repulsive force while minimizing an impact force and a resistance force with the ground according to a walking operation.

Conventional prosthetic (or prosthetic devices) to date include some form of energy storage element for storing and releasing gait energy.

According to the prior art, this energy storage element comprises an ankle joint with a metal coil spring.

In addition, the prostheses according to the prior art include a support made of a metal material that makes up the weight of the user (or wearer), or the legs or feet, or a combination thereof so as to withstand the impact transmitted from the ground, .

The metal coil spring or the metal support as described above has a problem of increasing the self-weight of the prosthesis, complicating the structure, and raising the manufacturing cost.

In addition, conventional prostheses are relatively heavy when used under repetitive motion or continuously under load, increasing the expenditure of metabolism energy of the wearer, or concentrating pressure on the wearer's legs, Or inconvenience of movement, or the inconvenience or inconvenience of such pain breaks the balance of posture and causes pain in the pelvic-vertebral structure.

In addition, since the prosthesis according to the prior art uses a metal coil spring as an energy storage element or uses a metallic material support for the energy storage element, the self-load of the product is large and even if the energy storage element is used, There is a problem that the energy storage element is applied as a part of the prosthesis and the self-propelling force (returning force) is comparatively weak and inconveniences the wearer.

[Patent Document 1] Korean Published Patent Application No. 1994-0702356, (June 08, 1994) [Patent Document 2] Korean Published Patent Application No. 2012-0006396, (June 08, 1994)

In order to solve the above problem, the prosthetic crutches of the present invention are designed to improve the leverage by using the elastic repulsive force while minimizing the impact force and resistance force with the ground according to the walking operation.

In order to attain the above object, the prosthetic crutch of the present invention is a prosthetic crutch capable of a gait operation divided into a heel contact, a sole contact, and a paw contact, wherein a support for supporting the thigh or the arm; A front foot installed at a lower end of the support and having an elastic upward propelling force; And the rear foot rotates at the back of the forefoot. When the heel touches the ground for the first time when walking, the rear foot rotates to minimize the resistance in the forward direction in the stepping motion of the ground and the heel so that the front foot naturally stands on the ground When the front foot is tilted to the ground, when the soles of the foot and the front foot are operated, the forefoot is flexibly flexed and the spring force is generated by the elastic force.

According to the present invention, the support base includes a grip portion formed with a coupling means for receiving a thigh or an arm and formed integrally with a lower portion of the coupling means and having a length, And a connecting portion provided with interrupting means for selectively adjusting the length.

According to the present invention, the engaging means is provided with an accommodating space for enclosing the thigh or the arm, and a handle which is rotatably engaged with the engaging groove formed on the inner circumferential surface of the accommodating space and selectively exposed or received in the engaging groove is provided.

As described above, the prosthetic crutch of the present invention is a prosthetic crutch capable of walking operation divided into a heel contact, a sole contact and a paw contact, wherein the support is for supporting the thigh or the arm; A front foot installed at a lower end of the support and having an elastic upward propelling force; And the rear foot rotates at the back of the forefoot. When the heel touches the ground for the first time when walking, the rear foot rotates to minimize the resistance in the forward direction in the stepping motion of the ground and the heel so that the front foot naturally stands on the ground When the forefoot is tilted on the ground, when the soles of the feet and the forefoots are actuated, the forefoots are flexibly flexed so that a springy force is generated by the elastic force.

As a result, it is possible to naturally produce a walking motion with minimum energy.

In addition, the prosthetic crutch of the present invention includes a grip portion formed with a coupling means for receiving a thigh or an arm and formed integrally with a lower portion of the coupling means and having a length, And the interlocking means for selectively adjusting the length of the crutches is installed on the crutches to selectively mount the crutches using the thighs or arms according to the severity of the crutches, thereby improving the compatibility with the use of the crutches.

In addition, the prosthetic crutch of the present invention is provided with a fitting space provided with a receiving space for enclosing the thigh or the arm, and a handle which is rotatably coupled to the coupling groove formed on the inner circumferential surface of the receiving space and is selectively exposed or received in the coupling groove The handle is housed in the engaging groove so as not to cause interference with the thigh, and when the holder is attached to the arm, the handle is exposed in the engaging groove so that the handle can be held by the hand.

1 is a state diagram showing a walking sequence using a prosthetic crutch of the present invention.
2 is an exploded perspective view showing a prosthetic crutch of the present invention.
3 is a perspective view showing a prosthetic crutch of the present invention;
4 is an enlarged front view showing a prosthetic crutch of the present invention.
5 is a front view showing a prosthetic crutch of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that, in the drawings, the same components or parts have the same reference numerals as much as possible.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

FIG. 3 is a perspective view of a prosthetic crutch according to the present invention, and FIG. 4 is a perspective view showing the foot of the prosthetic crutch according to the present invention. FIG. Fig. 5 is a front view showing a prosthetic crutch of the present invention. Fig.

1 to 5, the prosthetic crutch 10 of the present invention comprises a support 100, a front foot 200, and a rear foot 300.

The support 100 supports the thigh or arm.

The forefoot 200 is installed at the lower end of the support 100 to have an elastic upward propelling force.

The rear foot 300 has a roller shape and rotates in the rear of the front foot 200.

The arm-type crutch 10 configured as described above improves the leverage by using the elastic repulsive force while minimizing the impact force and the resistance force with the ground according to the walking motion.

In other words, the upper part of the support 100 is provided with an accommodation space 112 for surrounding the thighs or arms.

The accommodation space 112 is entirely formed in a bent shape accommodating the human body and is partially opened.

The thighs or arms are inserted into the accommodating space 112 through the opened portion so that the prosthetic carcass 10 can be mounted on the human body.

At this time, a handle 114, which is rotatably coupled to the coupling groove 113 formed on the inner circumferential surface of the accommodation space 112 and selectively exposed or received in the coupling groove 113, is provided.

When the arm-type crutches 10 are mounted on the thighs, the knobs 114 are received in the coupling grooves 113 to prevent interference with the thighs. When the arm-type crutches 10 are mounted on the arms, the knobs 114 are exposed in the coupling grooves 113, 114 to be used.

The support 100 includes a grip 110 and a connection part 120.

The gripper 110 includes a coupling means 111 for receiving a thigh or an arm and a coupling means 115 formed integrally at a lower portion of the coupling means 111 and having a length.

Here, the coupling means 111 and the coupling means 115 are formed to be bent at a predetermined angle.

The coupling means 111 is provided with a receiving space 112 for surrounding the thigh or the arm so as to be coupled to the thigh or the arm.

This is formed so that the angle is bent in accordance with the walking motion of the thigh or arm coupled to the accommodation space 112 of the combining means 111. [

A handle 114, which is rotatably coupled to the coupling groove 113 formed on the inner circumferential surface of the accommodation space 112 and selectively exposed or received in the coupling groove 113, is provided.

The handle 114 can determine the thigh or the arm rest depending on whether the handle 114 is stored in the coupling groove 113.

In other words, when fitting to the thigh, the grip 114 is received in the engaging groove 113 so as not to cause interference with the thigh, and when the grip 114 is mounted on the arm, the grip 114 is held in the engaging groove 113, .

The connection unit 120 is provided with an interruption means 121 that is vertically movably coupled to the coupling means 115 and selectively adjusts the length.

The intermittent means 121 couples the coupling means 115 movably to the coupling means 111.

Fixing holes 116 are formed in the coupling means 111 and the coupling means 115, respectively.

At this time, one fixing hole 116 is formed in the coupling means 111 and a plurality of fixing holes are formed in the coupling means 115.

The coupling means 111 and the fixing means 116 of the coupling means 115 are communicated with each other, and then the coupling means 122 and the coupling means 122 are engaged with each other.

As described above, the length of the crutches is determined according to the exposed state of the coupling means 115 in the coupling means 111, and the length can be controlled using the interruption means 121.

The operation of the prosthetic crutch 10 constructed as described above will be described below.

First, a person's walking phase is divided into heel reaching, soles reaching, and frontal 200 reaching.

The prosthetic crutch 10 of the present invention has the walking step of the person.

In other words, when the heel is in contact with the ground for the first time when walking, the rear foot 300 rotates when the foot-mounted crutch 10 is mounted.

This minimizes the resistance force in the forward direction in the stepping motion of the ground and the heel, so that the front foot 200 naturally descends on the ground.

Next, when the forefoot 200 is tilted on the ground, the forefoot 200 is flexibly bent while the soles of the feet and the forehead 200 are tilted, so that a springy force is generated by the elastic force.

That is, when the forefoot 200 is tilted, the forefoot 200 having a curved shape and made of an elastic material is flexibly bent by the user's body weight, and elastic energy is stored in the forefoot 200.

Next, in order to perform the heel action, elastic energy is generated in the process of moving the body weight at the front foot 200, and a jump force is generated.

Accordingly, the rear leg 300 can minimize the frictional force with the ground surface, and use the elastic force of the front foot 200 to naturally produce the walking motion with the leverage of walking.

This can minimize the energy loss occurring when walking.

In addition, the prosthetic crutch 10 of the present invention has an effect of improving the compatibility with the use of the crutches by selectively using the thighs or arms to mount the crutches according to the degree of the disorder.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be clear to those who have knowledge of.

10: prosthetic crutch 100: support
110: grip part 111: engaging means
112: accommodating space 113: engaging groove
114: Handle 115: Coupling means
116: Fixing hole 120: Connection
121: intermittent means 122:
200: paw 300: hind paw

Claims (3)

A prosthetic crutch which is capable of a walking operation divided into heel contact, foot contact and paw contact,
A support for supporting the thigh or arm;
A front foot installed at a lower end of the support and having an elastic upward propelling force;
And a rear foot rotating in the rear of the front foot
When the heel touches the floor for the first time on the ground, the rear foot rotates and the resistance is minimized in the forward direction in the stepping motion of the ground and the heel,
Wherein when the forefoot is tilted on the ground, the forefoot is flexibly bent when the foot is touched and the forefoot is touched, so that a leap force is generated by the elastic force.
The method according to claim 1,
[0028]
A grip portion formed of a joint means for receiving a thigh or an arm and formed integrally at a lower portion of the engagement means and having a length,
And a connecting portion which is vertically movably coupled to the joining means and is provided with a regulating means for selectively adjusting the length.
3. The method of claim 2,
Wherein the coupling means comprises:
A thigh or a space for accommodating the arm is provided,
Wherein a handle is rotatably coupled to an engaging groove formed on an inner circumferential surface of the accommodating space and selectively exposed or received in the engaging groove.

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