JPH1199164A - Elbow joint fixing kit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To limit the expansion/contraction motion of an elbow joint of a patient under drip infusion and to surely prevent the patient himself from removing a fitted apparatus such as an infusion tube with a hand unconsciously or consciously by constituting the elbow joint to be able to fix at an optional angle. SOLUTION: An upper arm unit A is fastened by an upper arm fastening band 20, and lock pins 21 are inserted into lock holes 19 to fit the upper arm unit A to an upper arm U. A front arm unit B is fastened by a front arm fastening band 49, and lock pins 50 are inserted into lock holes 51 to fit the front arm unit B to a front arm D. When the angle of the front arm unit B against the upper arm unit A is adjusted to the prescribed angle, a front arm fixing member 46 provided on the elbow side of a length adjustment section 44 is moved to the inside direction and is fitted and locked by the action of a stopper provided coaxially with a lock screw 35. The bend angle between both units A, B of this joint fixing kit can be properly selected in the range of about 60 deg.-180 deg., and the self-removal of an infusion tube can be effectively prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brace for fixing an elbow joint, and more particularly to a device for protecting a venous drip and a high-calorie infusion tube, a nasal feeding tube, a nasal oxygen supplement tube, and a tracheal tracheal tube. The present invention relates to an elbow joint fixing device for preventing a patient from unconsciously or consciously removing a wearing device such as a tube or a cannula by tracheostomy by hand.

[0002]

2. Description of the Related Art Conventionally, hospitalized patients such as post-operative patients, trauma patients, cerebral disease patients, dementia patients, and pediatric patients are required to receive high-calorie infusion tubes, nasal feeding tubes,
Nasal oxygen supplement tube, tracheal tube with tracheal insertion,
By using a cannula or other mounting device through a tracheostomy, the patient supplies the body with necessary items and receives treatment.
In some cases, these wearing devices are unintentionally removed by the patient themselves, that is, so-called self-extraction is performed.

[0003] The removal behavior of these mounting devices is as follows:
In many cases, the treatment is performed during the nighttime, and in such a case, nursing care is not enough. Therefore, as a preventive measure, the patient is fixed by a method in which the limbs are tied to the bed with the restraining band.

[0004]

However, according to the conventional method of tying a limb to a bed, the patient is restrained on the whole body and cannot change his / her posture such as turning over, so that the patient rubs on the floor. If freedom is severely restrained, it is difficult to change your mind, so stress tends to accumulate,
Then, there was a problem that the accumulation of stress may lead to the occurrence of gastric ulcer. Furthermore, there is a problem that the appearance of the limbs tied to the bed is not good in appearance, and the appearance of the family is quite shocking and inhuman.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. By fixing the elbow joint at a predetermined angle of 90 to 180 degrees, the bending and extension of the elbow joint of the patient is restricted.
An object of the present invention is to provide an elbow joint fixing device that prevents a patient from unintentionally or consciously manually removing a wearing device such as the infusion tube used by hand.

[0006]

SUMMARY OF THE INVENTION The present invention provides an elbow joint in which an upper arm unit for covering a part of an upper arm and a forearm unit for covering a part of a forearm are flexibly and fixedly connected at an elbow joint. An upper arm unit including an upper arm tightening portion for tightening the upper arm and an upper arm arm piece, and fixing the upper arm arm piece according to the length of the upper arm. Length adjustment part to do,
An upper arm arm fixing member having a connecting part for connecting and fixing the forearm unit to the upper arm unit while maintaining a predetermined angle, wherein the forearm unit includes a forearm tightening part for tightening the forearm and a forearm arm piece. An arm member, a length adjusting portion for fixing a forearm arm piece of the forearm arm member in accordance with the length of the forearm, and a forearm arm fixing member provided with a joining portion for joining to a connecting portion of the upper arm unit. The above problem has been solved by adopting such means.

[0007]

Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an attached state of an elbow joint fixing orthosis of the present invention, and an upper arm unit A.
The elbow joint fixing device M of the present invention formed by the forearm unit B and the forearm unit B is shown attached to the right arm (the left arm is the same except for the left-right symmetry, and the description is omitted). According to FIG. 1, an upper arm unit A is attached to the upper arm U of the arm, a forearm unit B is attached to the forearm D of the arm, and the upper arm unit A and the forearm unit B are near the elbow of the arm. Are flexibly connected and mounted.

The upper arm unit A includes an upper arm arm member 13 having an upper arm fastening portion 11 for tightening the upper arm U and an upper arm arm piece 12, and an upper arm arm piece 12 of the upper arm arm member 13 which is adjusted to the length of the upper arm U. Length adjustment part 14 to be fixed
And an upper arm arm fixing member 16 having a connecting portion 15 for connecting and fixing the forearm unit B to the upper arm unit A while maintaining a predetermined angle.

The upper arm arm member 13 is provided with an upper arm arm piece 12 extending along both the inner and outer sides of the upper arm U, and a serrated projection 17 projecting from a lower surface of the upper arm arm piece 12, respectively. Further, the upper arm piece 1
The upper surface of the upper arm plate 18 is connected and fixed by a concave upper arm plate 18, and a plurality of engagement holes 19 are formed in both side surfaces of the upper arm plate 18 so as to fit into the engagement holes 19 of the upper arm tightening band 20. The locking pin 21 for stopping is formed by protruding.

The upper arm tightening band 20 is formed of a flexible material such as leather, cloth, synthetic resin or the like, and the locking hole 19 has a diameter slightly larger than the diameter of the head 21a of the locking pin 21. The insertion hole 19a and the guide hole 19b for guiding the shaft 21b of the locking pin 21 are formed continuously, and the predetermined locking hole 1 is formed.
After the head 21a of the locking pin 21 is inserted into the insertion hole 19a of the No. 9 and the upper arm tightening band 20 is shifted upward, the shaft 21b of the locking pin 21 is inserted through the guide hole 19b of the locking hole 19. Then, the locking pin 21 once inserted does not come off from the locking hole 19 and can be removed by performing the operation reverse to the above. Although the locking holes 19 and the locking pins 21 are both formed in two rows in the drawing, they may be formed in one row or three or more rows.

The upper arm arm fixing member 16 holds the forearm unit B at a predetermined angle on the elbow side of the adjusting portion 14 for adjusting the length of each upper arm arm piece 12 of the upper arm arm member 13 and holds the upper arm unit A at a predetermined angle. And a connecting portion 15 that is connected and fixed to the body.

An adjusting portion 14 for adjusting the length of the upper arm arm piece 12 has upper and lower edges on the inner side surface on the shoulder side of the substrate 22 so that the upper arm arm piece 12 can be fitted and overlapped from the inner side. Projecting pieces 23 are protruded at the respective portions, and a horizontally long recess 24 for fitting the upper arm arm piece 12 is provided in the substrate 22 sandwiched between the projecting pieces 23, and the upper arm Serrated protrusion 1 protruding from the lower surface of arm piece 12
7 is provided with a saw-toothed concave portion 25, and a cover plate 2 for covering the horizontally long concave portion 24 between the projecting pieces 23 of the substrate 22.
6 is formed so as to be capable of opening and closing freely.

Each cover plate 26 of the adjusting section 14 is opened, and the length of the upper arm arm 12 is adjusted to the saw-toothed recess 25 of each substrate 22 so that the saw-toothed projection 17 is engaged. When the upper arm arm pieces 12 are fitted and overlapped on the substrate 22 and the cover plate 26 is closed, the saw-tooth-like projections 17 of each upper arm piece 12 are firmly engaged with the respective saw-tooth recesses 25 of the adjustment section 14, and the upper arm The arm pieces 12 are fixed at a predetermined length without moving back and forth.

The connecting portion 15 for connecting and fixing the forearm unit B at a predetermined angle to the distal end of the adjusting portion 14 constituting the upper arm arm fixing member 16 at the elbow side is provided on the base plate 22 of the adjusting portion 14. A circle is formed on the outer surface of the elbow portion side so as to mesh with a plurality of gear-shaped recesses 57 provided at equal intervals on an inner peripheral surface of a through hole 58 of the adjusting portion 44 of the forearm arm fixing member 46 of the forearm unit B of the forearm unit B described later. A frusto-conical stopper 28 having a plurality of gear-shaped projections 27 provided on the peripheral surface thereof at equal intervals is protruded, and a concave elbow for pressing the elbow from below on the inner surface of the base plate 22 at the elbow portion side. Both ends of the holding plate 29 are rotatably connected, and the outer side of the joined upper arm arm fixing member 16 and forearm arm fixing member 46 can be locked with an elbow tightening band 30 for tightening the elbow from below. Formed To have.

A stopper 28 projecting from the substrate 22
Is formed at the center of the through hole 31 and the through hole 3 is formed.
Hollow shafts 32 that can be inserted into the projections 1 protrude from the outer surfaces of both ends of the elbow pressing plate 29, and female screws 33 are engraved on the inner peripheral surface of the hollow shaft 32. And the elbow holding plate 2
9 and the hollow shafts 32 at both ends of the
1 and a forearm arm fixing member 46 described later.
Of the hollow shaft 3 through the locking hole 34 provided in the elbow band 30.
By screwing and tightening the second female screw 33, the forearm arm fixing member 46, the upper arm arm fixing member 16 and the elbow holding plate 29 are integrally connected and fixed to the elbow tightening band 30.

The elbow band 30 is formed of a flexible material such as leather, cloth, synthetic resin, or the like. The locking hole 34 of the elbow band 30 has a diameter of a head 35a of a locking screw 35. Insertion hole 34a having a slightly larger diameter and shaft 35b of locking screw 35
When the head 35a of the locking screw 35 is inserted into each of the predetermined locking holes 34 and the elbow tightening band 30 is shifted upward, the locking is performed. The shaft 35b of the screw 35 is inserted into the guide hole 34b of the locking hole 34, and the locking screw 35 once inserted does not come off from the locking hole 34. When removing the screw 35, the reverse operation may be performed. .

Next, the forearm unit B includes a forearm arm member 43 having a forearm tightening portion 41 for tightening the forearm D and a forearm arm piece 42, and a forearm arm piece 42 of the forearm arm member 43 having a length of the forearm D. Length adjustment part 4 to be fixed together
4 and a forearm arm fixing member 46 provided with a joining portion 45 joined to the connecting portion 15 of the upper arm unit A.

The forearm arm member 43 is provided with forearm arm pieces 42 extending along both the inner and outer sides of the forearm D, and a gear-shaped projection 47 protruding from the lower surface of the forearm arm piece 42, respectively. Further, the forearm arm piece 4
The lower surface of the wrist 2 is connected and fixed by a concave forearm plate 48, and locking pins 50 for locking and fixing a forearm tightening band 49 for tightening from above the wrist are provided on both side surfaces of the forearm plate 48, respectively. In addition, a locking hole 51 for fitting and locking the locking pin 50 is formed in the forearm tightening band 49.

The forearm tightening band 49 is formed of a flexible material such as leather, cloth, synthetic resin or the like, and the locking hole 51 of the forearm tightening band 49 is formed with a head 50a of the locking pin 50.
The insertion hole 51a having a diameter slightly larger than the diameter of the
When the head 50a of the locking pin 50 is inserted into each of the predetermined locking holes 51, and the forearm tightening band 49 is shifted upward, the above-described engagement is established. The shaft 50b of the stop pin 50 is aligned with the guide hole 51 of the locking hole 51.
b, and the inserted locking pin 50 is inserted into the locking hole 51.
When detaching without further detachment, the reverse operation may be performed. Although the locking holes 51 and the locking pins 50 are formed in two rows in the drawing, they may be formed in one row or three or more rows.

The forearm arm fixing member 46 holds the forearm unit B at a predetermined angle on the elbow side of an adjusting part 44 for adjusting the length of each forearm arm piece 42 of the forearm arm member 43 while holding the upper arm unit B at a predetermined angle. A connecting portion 46 for connecting to the connecting portion 15 of A is provided.

The adjusting portion 44 for adjusting the length of the forearm arm piece 42 has upper and lower edges on the inner side face on the wrist side of the substrate 52 so that the forearm arm piece 42 can be fitted and overlapped from the inner side. Projecting pieces 53 are protruded at the respective portions, and a horizontally long recessed portion 54 for fitting the forearm arm piece 42 is provided in the substrate 52 sandwiched between the projecting pieces 53, and the forearm A serrated concave portion 55 is formed in the lower surface of the arm piece 42 so as to mesh with a serrated projection 47 protruding therefrom. Further, a cover plate 56 for covering the horizontally long concave portion 54 is openably and closably provided between the projecting pieces 53 of the substrate 52. The shaft 56a is formed.

Each cover plate 56 of the adjustment section 44 is opened, the length of the upper arm arm 42 is adjusted to the saw-toothed recess 55 of each substrate 52, and the saw-toothed projection 47 is engaged with the saw-toothed recess 47. When the upper arm arm piece 42 is fitted and overlapped with the substrate 52 to close the cover plate 56, the serrated projections 47 of each forearm arm piece 42 are firmly engaged with the respective serrated concave parts 55 of the adjustment part 44, and the forearm The arm pieces 42 are fixed at a predetermined length without moving back and forth.

The joining portion 46 joined to the connecting portion 15 of the upper arm unit A is connected to the stopper 28 provided on the upper arm unit A on the elbow side of the substrate 52 constituting the adjusting portion 44.
An inverted truncated cone-shaped fitting hole 58 having a gear-shaped recess 57 fitted and locked to the gear-shaped projection 27 is formed.

In the elbow joint fixing orthosis M of the present invention having the above-mentioned constitution, the length of the upper arm arm piece 12 of the upper arm unit A is adjusted by the adjusting section 14 in accordance with the length of the upper arm U, and the forearm unit B After adjusting the length of the forearm arm piece 42 according to the length of the forearm D by the adjusting section 44, the upper arm unit A is tightened by the upper arm tightening band 20, and the locking pin 21 is inserted into the locking hole 19 to be inserted. At the same time, the forearm unit B is fastened by the forearm fastening band 49 and the locking pin 50 is inserted into the locking hole 51 and mounted on the forearm D.

Next, the locking screw 35 is loosened to release the close contact between the substrate 22 of the upper arm arm fixing member 16 and the substrate 52 of the forearm arm fixing member 46 to move the substrate 52 slightly outward. Thus, the engagement between the gear-shaped projection 27 of the stopper 28 and the gear-shaped recess 57 of the fitting hole 58 is released. The stopper 28 has a frusto-conical shape, and has a fitting hole 5 for fitting and locking to the stopper 28.
8 has an inverted truncated conical shape, so that even if the stopper 28 and the fitting hole 58 are unlocked as shown in the left part of FIG. 5
8, the upper arm unit A
The forearm D can be rotated and moved to a predetermined angle while the forearm unit B is mounted on the arm.

In this state, when the predetermined angle is determined by adjusting the angle of the forearm unit B with respect to the upper arm unit A, the substrate 52 of the forearm arm fixing member 46, which has moved outward, is pressed inward. When the stopper 28 is moved, the stopper 28 is closely fitted in the fitting hole 58, the gear-shaped projection 27 of the stopper 28 is fitted and locked in the gear-shaped recess 57 of the fitting hole 58, and the forearm unit B is rotated. Then, the head 35a of the locking screw 35 is inserted into the insertion hole 34a of one of the locking holes 34 of the elbow tightening band 30, and the elbow tightening band 30 is moved upward. When it is shifted, the shaft 35b of the locking screw 35 is inserted through the guide hole 34b of the locking hole 34, and then the locking screw 35 is tightened and screwed into the female screw 33 of the hollow shaft 32, so that Inventive elbow joint orthosis A mounting fixed to the entire arm. In addition,
To remove, perform the reverse operation.

As described above, the elbow joint fixing orthosis M of the present invention comprises:
The bending degree of the upper arm unit A and the forearm unit B can be appropriately selected within a range of about 60 degrees to 180 degrees,
When the angle is set to 180 degrees, intravenous drip can be protected. When the angle is set to 120 to 130 degrees, a high-calorie infusion tube, a nasal feeding tube, a nasal oxygen supply tube, and a tracheal tube can be prevented from being self-extracted by tracheal insertion. When the angle is set to 60 to 90 degrees, it is possible to prevent the urinary catheter from being removed by itself.

The elbow joint fixing orthosis M of the present invention is used by being worn on both arms. At that time, a cloth such as a towel or the like is wound on a shirt or pajamas or worn on the arm.

As described above, in the elbow joint fixing orthosis of the present invention, the angle between the upper arm unit A and the forearm unit B is selected by bending the arm to an appropriate angle between about 60 to 180 degrees according to the purpose. It is fixed and can limit the flexion and extension of the elbow joint. Therefore, by using the elbow joint fixation device M of the present invention, the patient can be prevented from unconsciously or consciously removing the wearing device such as an infusion tube,
Safety can be ensured. At the same time, it is also possible to eliminate the labor shortage of nurses at night and the like. Further, the elbow joint orthosis M of the present invention can restrict the bending motion of the elbow but retain the freedom of movement of the fingers and the whole body, so that the patient can use it comfortably without feeling stress.

[0030]

Since the elbow fixation device of the present invention is fixed so that the elbow does not bend, it cannot reach the mounting device such as an infusion tube or the like, and unconsciously or consciously removes them. There is no danger of safety.
In addition, in the wearing state of the wearing device, the part other than the elbow can move freely, can change posture and walk, does not rub on the floor, can be used comfortably without unnecessary stress, and is light in weight, so that the burden on the patient is small. In addition, since there is no fear that the patient unconsciously removes the wearing device at midnight as in the related art, there is a surplus in monitoring of the nurse, and an excellent effect that the burden of nursing is reduced is exhibited.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which an elbow joint fixing device of the present invention is mounted on a right hand.

FIG. 2 is a side view of the elbow joint orthosis of the present invention.

FIG. 3 is an exploded side view of the elbow joint orthosis of the present invention.

FIG. 4 is an exploded perspective view of the elbow joint fixing device of the present invention.

FIG. 5 is an enlarged exploded perspective view of a connecting portion of the upper arm unit and the forearm unit in the elbow joint fixing device of the present invention.

FIG. 6 is an enlarged cross-sectional view showing a state where a connecting portion between an upper arm unit and a forearm unit in the elbow joint fixing device of the present invention is fixed.

FIG. 7 is an enlarged cross-sectional view showing a state where one side of a connecting portion between an upper arm unit and a forearm unit in the elbow joint fixing device of the present invention is loosened.

FIG. 8 is an enlarged sectional view of the upper arm unit of the elbow joint fixing orthosis of the present invention.

FIG. 9 is an enlarged sectional view of a forearm unit of the elbow joint fixing orthosis of the present invention.

[Description of Signs] A Upper Arm Unit, B Forearm Unit, M Elbow Joint Fixation Device, 11 Upper Arm Tightening Unit, 12 Upper Arm Arm Piece, 13 Upper Arm Arm Member, 14 Length Adjuster,
15 connecting part, 16 upper arm arm fixing member, 17
Serrated projections, 18 upper arm plate, 19 locking holes, 19
a insertion hole, 19b guide hole, 20 upper arm tightening band, 21 locking pin, 21a head, 21b
Shaft, 22 substrates, 23 protruding pieces, 24 horizontally long recesses,
25 serrated recess, 26 cover plate, 26a shaft support, 2
7 gear-shaped projection, 28 stopper, 29 elbow holding plate, 30 elbow tightening band, 31 through hole, 32
Hollow shaft, 33 female screw, 34 locking hole, 34a insertion hole, 34b guide hole, 35 locking screw, 35a
Head, 35b axis, 41 Forearm fastening part, 42
Forearm arm piece, 43 forearm arm member, 44 length adjustment part, 45 joint part, 46 forearm arm fixing member, 47 sawtooth projection, 48 forearm plate, 49 forearm tightening band, 50 locking pin, 50a head, 5
0b shaft, 51 locking hole, 51a insertion hole, 51
b guide hole, 52 substrate, 53 projecting piece, 54
Horizontal recess, 55 Serrated recess, 56 Cover plate, 56
a Bearing, 57 Gear-shaped recess, 58 Fitting hole.

Claims (11)

[Claims] An elbow joint for restricting bending and extension of an elbow joint in which an upper arm unit covering a part of an upper arm and a forearm unit covering a part of a forearm are flexibly and fixedly connected at an elbow joint part. A fixing device, wherein the upper arm unit includes an upper arm tightening portion for tightening the upper arm and an upper arm arm member having an upper arm arm piece; a length adjusting section for fixing the upper arm arm piece in accordance with the length of the upper arm; An upper arm arm fixing member having a connecting portion for connecting and fixing the unit to the upper arm unit while maintaining a predetermined angle, wherein the forearm unit includes a forearm tightening portion for tightening a forearm and a forearm arm piece. A member, a length adjusting section for fixing a forearm arm piece of the forearm arm member in accordance with the length of the forearm, and a joint for joining to a connecting section of the upper arm unit. Elbow joint fixing brace is characterized in that is constituted by. 2. An upper arm arm member, wherein upper arm arms are respectively provided to extend along inner and outer sides of the upper arm, and a serrated projection is provided on a lower surface of the upper arm arm to protrude therefrom. The upper surface of the upper arm is connected and fixed by a concave upper arm plate, and the lower surface of the upper arm plate is fitted and locked in one of the locking holes of an upper arm tightening band having a plurality of locking holes formed in both side surfaces of the upper arm plate. 2. The fixing device according to claim 1, wherein the fixing pin is formed by projecting a locking pin.
An elbow fixation orthosis as described. 3. An upper arm tightening band is formed of a flexible material such as leather, cloth, synthetic resin or the like, and the locking hole has an insertion hole having a diameter slightly larger than the diameter of the head of the locking pin. 2. The elbow joint fixing device according to claim 1, wherein the device is formed by connecting a guide hole for guiding a shaft of the locking pin. 4. A connecting part for connecting and fixing the forearm unit to the upper arm unit while maintaining a predetermined angle on the elbow side of the adjusting part for adjusting the length of each upper arm arm piece of the upper arm arm member. The elbow joint fixing device according to claim 1, wherein the device is formed by integrally fixing the elbow joints. 5. An adjusting portion, wherein projecting pieces are respectively provided at upper and lower edges of an inner surface side of a door side of a board so that an upper arm arm piece can be fitted from the inner side, and said adjusting piece is provided on said board. A concave portion having the same height as the upper arm arm piece is provided, and a saw-tooth concave portion that meshes with a serrated protrusion protruding from the lower surface of the upper arm arm piece is formed in the lower portion of the inside of the substrate. 5. The elbow joint fixing device according to claim 1, wherein the base member is formed by pivotally supporting a substrate covering the concave portion so as to be freely opened and closed. 6. A connecting portion is provided with a frusto-conical stopper having a plurality of gear-shaped projections provided on the outer peripheral surface of the adjusting portion on the side of the elbow portion of the substrate at equal intervals on the circumferential surface. Both ends of a concave elbow holding plate for holding the elbow from the lower side on the inner side surface of the elbow portion side of the substrate are rotatably connected, and furthermore, elbow tightening bands are locked and fixed to the outer surfaces of both ends of the elbow holding plate. And a plurality of locking holes for fitting and locking the locking screws are formed on the elbow tightening band. The orthosis for an elbow joint according to claim 1. 7. A forearm arm member, wherein the forearm arm pieces are respectively extended so as to extend along the inner and outer sides of the forearm, and serrated projections are provided on the lower surface of the forearm arm pieces. The lower surface on the wrist side is connected and fixed by a concave forearm plate, and locking pins for locking and fixing a forearm tightening band are projected from both side surfaces of the forearm plate, respectively, and the locking pin is fixed to the forearm tightening band. 2. The elbow joint fixing device according to claim 1, wherein a plurality of locking holes for fitting and locking are formed so as to protrude. 8. The forearm tightening band is formed of a flexible material such as leather, cloth, synthetic resin, and the like, and the locking hole has an insertion hole having a diameter slightly larger than the diameter of the head of the locking pin. 2. The elbow joint fixing device according to claim 1, wherein the device is formed by connecting a guide hole for guiding a shaft of the locking pin. 9. A forearm arm fixing member joins a forearm unit to a connection part of an upper arm unit while maintaining a predetermined angle on an elbow side of an adjustment part for adjusting the length of each forearm arm piece of the forearm arm member. The elbow joint fixing device according to claim 1, wherein the joint portion is formed by integrally fixing the joint portion. 10. An adjusting unit, wherein projecting pieces project from upper and lower edges of a wrist side inner surface side of a substrate so as to fit and overlap forearm arm pieces from the inner side surface. A concave portion having the same height as the forearm arm piece is provided on the substrate, and a saw-tooth concave portion that meshes with a serrated protrusion protruding from a lower surface of the forearm arm piece is formed in a lower portion inside the substrate. The elbow joint fixing device according to claim 1 or 9, wherein a lid plate for covering the recess is pivotally supported so as to be freely opened and closed between the projecting pieces. 11. An inverted frusto-conical shape in which a joint portion is provided on the elbow side of a substrate constituting an adjusting portion with a gear-shaped concave portion which is fitted and engaged with a gear-shaped projection of a stopper provided in an upper arm unit. 2. The elbow joint fixing orthosis according to claim 1, wherein said orthosis is formed by providing said fitting hole.