JP4054233B2 - Knee strap pulling mechanism for knee orthosis - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, for example, if the ligament that reinforces the knee joint is damaged due to an unreasonable movement during athletics or muscular work, the lower thigh and upper lower thigh are treated until the damaged part is healed. Knee joint that is installed in a wound shape in a straddling manner to prevent excessive force on the knee joint, or to prevent accidental ligament damage by wearing it during intense athletics It relates to protective equipment for use.
[0002]
[Prior art]
As the existing protective equipment for knee joints, a rigid material thigh support part, which is almost semi-cylindrical, and a lower leg support part are vertically connected via a hinge part to form a main body. There is.
Between the pair of hinges arranged so as to sandwich the knee from the left and right, a knee band for striking the front of the upper lower leg is straddled.
To use it, cover each thigh and lower thigh support part on the lower thigh and upper thigh from the front side, and fix this detachably by fastening bands attached to the respective support parts. It is like.
[0003]
[Problems to be solved by the invention]
However, the existing knee orthosis still has room for improvement.
This is because when the anterior cruciate ligament of the knee is damaged in sports or the like, the lower leg bone (tibia) becomes unstable in the forward and rotational directions. Such anxiety suppressing function is also present in existing knee braces, but does not support knee flexion and extension.
[0004]
Therefore, the object of the present invention is to add to the existing knee brace, in the knee extended position where the load is applied, by applying pressure from the front to the knee, while ensuring the function of the knee extender, It is an object of the present invention to provide a knee band pulling mechanism configured to loosen the compression of the knee and prevent the movement of the knee stretcher from shifting. The knee pad band pulling member is covered with a flexible tube except for the front and rear ends, so that the knee pad band and the skin of the wearer are not touched directly. To provide an attraction mechanism.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a knee pad band pulling mechanism for a knee brace according to the present invention comprises a thigh side mounting member A and a crus side mounting member B, which are respectively mounted on the lower thigh and upper crus, The lower end of the mounting member A and the upper end of the lower leg side mounting member B serve to pin-connect, and when the knee brace is mounted, a pair of left and right joint members C and C positioned on the left and right outer sides of the knee joint; A mechanism for attaching to an existing knee brace comprising a knee band D straddling between a pair of left and right joint members C and abutting against the front surface of the upper part of the lower leg, A pulling member 32 having a length and having a rear end coupled to the rear end side of the joint member C, and one end of the knee band D attached to the front end of the pulling member 32 and a latch member 33 which hooked and the attracting member 32, Ju highly flexible Wherein the covering the blanking 37. Then, the pulling member 32 may have its rear end connected to the protruding end of the arm 31 protruding rearward from the joint member C.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a knee pad band pulling mechanism for a knee brace according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a state in which the knee brace 100 of this embodiment is mounted around the knee 200, and FIG. 2 is a front view of the knee brace 100 in a state in which a mounting fixing band (described later) is removed. FIG.
[0007]
First, the general structure of the knee brace 100 will be described. The main body portion thereof includes a lower end of a thigh-side mounting member A that is detachably mounted on each of a lower thigh and an upper lower thigh, and a lower thigh-side mounting member B. Are connected to each other via a pair of joint members C and C on both the left and right sides.
The pair of joint members C and C are positioned on the left and right outer sides of the knee joint when the knee brace 100 is worn.
[0008]
Further, a knee band D that abuts on the front surface of the upper lower leg is stretched between the pair of left and right joint members C, C.
A knee pad band pulling mechanism E according to the present invention is assembled to both joint members C and C.
In order to prevent the lower leg bone from moving forward relative to the femur, this knee pad band pulling mechanism E is designed to attract the knee band D to the rear side in conjunction with the knee extension movement. Act on.
And it is loosened at the time of bending of the knee and plays a role of preventing the displacement movement of the knee brace 100.
[0009]
Next, the detailed structure of the knee brace 100 will be sequentially described below.
First, the thigh-side mounting member A is curved in a semi-cylindrical shape so that it covers the front side of the lower thigh, and the portion with which the knee 200 abuts is punched out so that the front view shape is substantially U-shaped. The thigh side frame 1 made of hard plastic is used as the main body.
[0010]
A projecting piece 1 a is extended at the upper end of the thigh-side frame 1. On the back side of the projecting piece 1a, a winding pad 2 is attached by using a stop pin 3 for contacting the front side of the thigh in a wound shape.
The winding pad 2 is made of semi-rigid plastic and is formed in a horizontally long rectangular plate shape, and a cushion material (not shown) made of a sponge plate is attached to the back surface thereof.
[0011]
Slits 5 are provided at the left and right ends of the winding pad 2 for hooking the fixing band 4 shown in FIG. 3 in the inserted state.
The fixed band 4 is inserted into the left and right slits 5 at both ends thereof, bent in an opposing manner and pulled toward each other, and a state in which both ends are appropriately overlapped with each other is attached to the fixed band 4 (not shown). It is supposed to be fixed by.
And the latching tool 7 provided with the slit 5 for latching another fixed band 6 is pin-connected to the right and left both ends of the thigh side frame 1.
[0012]
The lower thigh side mounting member B also has a structure similar to the thigh side mounting member A.
1 and 2, 11 is a crus side frame, 12 is a winding pad, 13 is a stop pin, 14 and 16 are fixed bands, and 17 is a hook.
[0013]
In order to prevent the winding pads 2 and 12 from coming into direct contact with the skin, prior to the wearing of the knee brace 100, as shown in FIG. The winding pads 2 and 12 are wound around the contact points and fixed with a velvet fastener (not shown).
[0014]
Next, the structure of the joint member C will be described with reference to FIGS.
The joint member C has as its main body a plate 21 made of hard plastic having the shape shown in FIG.
Connecting pins 23 and 24 are attached to the plate 21 in two directions at the top and bottom.
[0015]
The upper connecting pin 23 is inserted through the lower end portion on one side of the thigh-side frame 1 having left and right side portions.
The connecting pin 23 of the plate 21 of another joint member C is inserted into another one side.
The lower connecting pin 24 on the lower side of the plate 21 is inserted through the lower end of each side of the crus side frame 11 having both left and right side portions.
A spacer 22 is interposed in the gap between the thigh side frame 1 and the crus side frame 11.
[0016]
A cushion pad 25 is attached to the inside of the joint member C where the knee 200 contacts (see FIGS. 1 and 2).
[0017]
Next, the configuration and operation of the knee pad band pulling mechanism E will be described with reference to FIG. 1, FIG. 5, and FIG.
The knee pad band pulling mechanism E of this embodiment includes an arm 31 projecting rearward from the plate 21 of the joint member C, and a wire (pull length) having a rear end connected to the projecting end of the arm 31. (Attachment member) 32 and a hooking member 33 which is attached to the front end of the wire 32 and hooks one end of the knee band D.
[0018]
As shown in FIG. 5, the arm 31 is screwed to the plate 21 by a screw 34 so as to be movable back and forth along the longitudinal direction thereof.
A short insertion tube 34 formed by bending a metal plate is screwed laterally at a protruding end at which a part of the arm 31 protrudes rearward of the plate 21.
The rear end of the wire 32 is loosely fitted into the insertion tube 35. A bulging portion 32 a for preventing the removal is provided at the rear end of the wire 32.
[0019]
The latch member 33 made of a metal plate has a substantially trapezoidal shape, and a stop ring through which the knee band D is inserted is provided on the bottom side thereof.
A ball joint 36 for connecting the front end of the wire 32 is attached to the top side of the latch member 33.
The wire 32 is covered with a flexible tube 37 except for the front and rear ends thereof so that the knee brace 100 and the skin of the wearer are not touched directly.
[0020]
As shown in FIG. 4, the knee band D has a structure similar to the fixed bands 4, 6, etc., and in the same manner as these fixed bands, as shown in FIG. It is stretched between the hook members 33, 33 of the knee pad band pulling mechanism E, E.
Although not shown, in the existing knee brace, the member corresponding to the knee band D is directly stretched between the members corresponding to the left and right joint members C and C.
[0021]
Next, the operation of the knee pad band pulling mechanism E will be described with reference to FIGS.
FIG. 5 shows a state of the knee pad band pulling mechanism E when the wearer of the knee brace 100 stands up.
At this time, the knee band D is not shown in the figure, but is in a state of being applied to the front surface of the upper end of the lower leg.
As the knee extends, the pressure from the front increases. The knee force band D is used to adjust the compression force.
[0022]
FIG. 6 shows the state of the knee pad band pulling mechanism E when the knee is bent while walking or sitting.
As understood from FIGS. 5 and 6, when the knee is bent, the joint member C is moved around the connecting pins 23 and 24 as indicated by an arrow F in FIG. Is turned backwards.
[0023]
Therefore, the latch member 33 of the knee abutment band D is also moved backward as indicated by the arrow f in FIG.
In such an operation state, it is possible to prevent the knee contact band D from being loosened and the knee brace 100 from being displaced in the direction of the toes (downward).
[0024]
When it is desired to adjust the range of forward and backward movement of the knee abutment band D according to the wearer's body shape and the like, the arm 31 may be moved back and forth appropriately by loosening the set screw 34 once.
Or you may replace with the arm 31 from which size differs.
[0025]
Next, FIG. 7 shows another embodiment of the knee pad band pulling mechanism E.
The difference from the knee pad band pulling mechanism E of the above embodiment is that the rear end side of the plate 21 is protruded rearward, so that the arm 31 is omitted, and the rear end of the wire 32 is connected to the plate 21. It is in a place where it is directly connected to the rear end.
[0026]
【The invention's effect】
As will be apparent from the above description, an excellent function as described below can be added to the existing knee brace by attaching the knee pad band pulling mechanism for the knee brace according to the present invention.
As the knee stretches, the knee band acts as a knee brace by compressing the front of the lower leg, and at the knee flexion position, the knee band is loosened by the action of the knee pad band pulling mechanism to prevent the brace from shifting. I can do it.
As a result, the forward instability is eliminated when the load is applied, and when the load is not applied, the feeling of pressure caused by the knee band is eliminated, and the displacement of the knee brace can be prevented.
Furthermore, this mechanism is extremely simple in structure, and is extremely cost effective.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a wearing state of a knee brace provided with a knee pad band pulling mechanism according to an embodiment of the present invention.
FIG. 2 is a front view of the knee orthosis shown in a state in which a plurality of mounting fixing bands are all removed.
FIG. 3 is a development view of one of a plurality of fixed bands.
FIG. 4 is a development view of the knee band, same as above.
FIG. 5 is a side view showing the state of the knee pad band pulling mechanism when the wearer stands up.
FIG. 6 is a side view showing a state of the knee pad band pulling mechanism when the knee is bent.
FIG. 7 is a side view of an essential part showing another embodiment of a knee pad band pulling mechanism.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 100 Protection apparatus 200 Knee A Thigh side mounting member B Lower leg side mounting member C Joint member D Knee band E Knee pad band pulling mechanism 1 Thigh side frame 1a Protrusion piece 2,12 Winding pad 3 Stopping pins 4,14 Fixing Band 5 Slit 6, 16 Fixed band 7, 17 Hook 8, 18 Base pad 11 Lower leg side frame 21 Plate 22 Spacer 23, 24 Connecting pin 25 Cushion pad 31 Arm 32 Wire (Attracting member)
32a bulging portion 33 hanging member 34 set screw 35 insertion tube 36 ball joint 37 tube

Claims (1)

The thigh side mounting member (A) and the lower thigh side mounting member (B), the lower end of the thigh side mounting member (A), and the upper end of the lower thigh side mounting member (B) to be mounted on each of the lower thigh and upper thigh When the knee brace is worn, the pair of left and right joint members (C), (C) and the left and right pair of joint members (C), (C ), And a mechanism for attaching to an existing knee brace comprising a knee band (D) straddling between and abutting the front of the upper lower leg,
A pulling member (32) having a predetermined length, the rear end of which is connected to the rear end side of the joint member (C), and the front end of the pulling member (32). And a hook member (33) for hooking one end of the knee band (D),
A knee pad band pulling mechanism for a knee brace characterized by covering the pulling member (32) with a flexible tube (37) .

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