JPH0319857Y2 - - Google Patents

Description

[Detailed description of the invention] (A) Industrial application field This invention uses the elasticity of leaf springs to bend and contract the joints of fingers and fingers due to disease or injury. The present invention relates to a finger joint correction device for correcting contracted joints.

(B) Prior Art Conventionally, spring-shaped braces using piano wire as shown in FIGS. 15 and 17 are known as braces for correcting joints of fingers with flexion contracture.

(C) Problems to be solved by the invention When the PIP joint of the finger suffers flexion contracture due to trauma or disease, conventional techniques have been designed to reduce the pressure on the MP joint or the palmar side of the proximal phalanx, or the palmar side of the middle phalanx. Press the 3 points on the side, the proximal phalanx, or the dorsal side of the PIP joint,
The elasticity of the piano wire was used to correct the PIP joint by placing it in an extended position. However, the conventional technology has the following drawbacks.

a It had little effect in cases of stubborn joint contracture.

b When both the PIP and DIP joints had flexion contracture, it was not possible to correct both joints at the same time.

c. Braces used to be inconvenient when putting on and taking off clothing with sleeves.

d If worn for a long time, it would lead to an overcorrected position and cause blood circulation problems.

This invention eliminates the above-mentioned drawbacks and prevents flexion contracture of the PIP joints and DIP joints of fingers other than the thumb.
Moreover, even if the flexion contracture is stubborn,
It was made possible to correct it by putting it in the extended position.
The object of the present invention is to provide a hand and finger joint correction device.

(D) Means for solving the problems In order to achieve these objectives, the finger joint correction device according to this invention has the following configuration.

a. A palm pad 2 is provided at one end of a flat leaf spring 1.

b A vertically elongated slot 3 is provided at the other end of the leaf spring 1.

c. A connecting shaft 5 is provided at the bottom of the finger support 4.

d. Pass the connecting shaft 5 through the slot 3 and connect the leaf spring 1 and finger support 4 with some play.

e. The leaf spring 1 between the palm pad 2 and the slot 3 is provided with a band stopper 6 that can be moved back and forth.

f Attach the band 7 to the band stopper 6.

(E) Effect Next, the operation will be explained based on FIG. 1.

First, in order to wear the hand and finger joint correction brace shown in FIG.
Attach it from the distal phalanx to the fingertips, place the palm pad 2 on the side of the palm of the metacarpal, and then tighten the band stopper 6.
Move the band 7 so that it is located at the proximal phalanx of the finger, or between the proximal phalanx and the PIP joint, and move the band 7 so that the palm side of the finger is in close contact with the upper surface of the leaf spring 1.
Tighten it firmly to secure it.

As a result, the PIP joint, which had flexion contracture,
The DIP joint is in an extended position, and the brace does not have any protrusions or projections as shown in Figures 15 and 17, so the brace does not get caught when putting on or taking off clothing with sleeves. Since the flat leaf spring 1 is used, overcorrection will not occur.

By providing the finger support 4, there is no friction between the palm surface of the finger and the leaf spring 1, and the connection shaft 5 of the finger support 4 is passed through the slot 3, By connecting the leaf spring 1 and the finger support 4 with some play, when changing from the flexed position to the extended position,
Or, when changing from the extended position to the flexed position by passive movement or automatic movement, the fingertip moves back and forth along the slot 3 together with the finger rest 4, and at the same time, the angle of the fingertip changes back and forth. Finger rest 4 and leaf spring 1
The angle also changes back and forth.

(F) Example Embodiments of the present invention will be described based on the drawings.

First Embodiment A first embodiment of the present invention will be described with reference to FIG.

The first example has a thickness of 0.2 mm to 0.6 mm and a length when the finger to be corrected is in an extended position.
A palm pad 2 made of thick felt is fixed with studs 8 to one tip of a metal flat leaf spring 1 extending from the MP joint to the fingertip and having a width slightly narrower than the width of the finger.

A vertically elongated slot 3 is provided at the other end of the leaf spring 1.

A connecting shaft 5 is attached to the bottom of the finger rest 4, and this connecting shaft 5 is passed through the slot 3, so that the finger rest 4 can be moved back and forth along the slot 3, and the finger rest 4 can be moved back and forth with respect to the leaf spring 1. The connection shaft 5 is installed so as to have enough play to allow the angle to be changed back and forth, and to prevent the connection shaft 5 from coming out of the slot 3 of the leaf spring 1.

The finger support base 4 is shaped to support the entire distal phalanx on the radial, palmar, and ulnar sides of the distal phalanx and the distal end of the fingertip, and thin felt is pasted on the inside of the finger support 4. .

The leaf spring 1 between the palm pad 2 and the slot 3 includes:
A plastic band stopper 6 is provided on the convex portion so that it can be moved back and forth along the leaf spring 1, and has a pair of insertion holes 9 for passing the band 7 through. It is installed.

Band 7 is configured as follows. That is, Magic Tape (registered trademark) (a first flocked fabric member with loop-shaped flocking) of a length that extends from the lower part of the band stopper 6 to the dorsal side of the finger;
A separable/adhesive tape that is combined with a second flocked member having locking flocks and having a head that fits thereon. Connect the member with the locking flocks of Magic Tape (registered trademark) (hereinafter simply referred to as "Magic Tape (registered trademark)") to the other member with the loop-like flocks of Magic Tape (registered trademark), and then connect the member with the locking flocks. The smooth end of the back surface is attached to the bottom of the band stopper 6. This band 7 is passed from the outside to the inside of the insertion hole 9, and when worn on the finger, it is passed from the inside to the outside of the other insertion hole 9.
Note that a pad is provided on the inside of the band 7, which corresponds to the dorsal surface of the finger.

The finger support 4 is provided so as to be able to move back and forth along the slot 3 as described above, and to have enough play to change the angle with respect to the leaf spring 1 back and forth. . This play is
When the PIP joint and DIP joint of the finger change from the flexed position to the extended position, or from the extended position to the flexed position by passive or automatic movement, the fingertips move into the groove together with the finger rest 4. As the fingertip moves back and forth along the hole 3, the angle of the fingertip also changes, and the angle of the finger rest 4 changes back and forth accordingly.
It was provided to make these possible.

To wear the finger joint correction device configured as described above, first, the finger support 4 is attached to the finger with the flexion contracture from the distal phalanx to the fingertip, and then the palm pad 2 is attached to the metacarpal bone. Next, move the band stopper 6 so that it is located at the proximal phalanx of the finger, or between the proximal phalanx and the PIP joint, and finally place the band stopper 6 on the palmar side of the finger and the leaf spring. Pass the tip of the band 7 from inside the insertion hole 9 on the opposite side and pull it firmly so that the top surface of the band 7 comes into close contact with the upper surface of the band 7.Fold the band 7 in the opposite direction to tighten the Magic Tape (registered trademark). What is necessary is to adhere the member to which the locking flocking has been applied and the member to which the loop-shaped flocking has been applied.

By tightening with band 7 in this way,
The PIP joint and DIP joint with flexion contracture are supported by the elastic effect of the leaf spring 1 and the effect of the three-point support mechanism of the finger rest 4, the palm pad 2, the proximal phalanx, or the proximal phalanx and the PIP joint. It changes to the extended position,
As the position of the fingertip moves forward, the finger rest 4 also moves on the leaf spring 1 toward the tip.

Second Embodiment A second embodiment of the present invention will be described with reference to FIG.

In the case of the second embodiment, the finger support 4 is shaped so as to be supported on the radial side, palm side and ulnar side, that is, the U
It is assumed to be in the shape of a letter. The rest is the same as the first embodiment.

With the second embodiment, the finger support 4 can be attached to the distal phalanx without placing it on the fingertip.

Third Embodiment A third embodiment of the present invention will be described with reference to FIG.

In the case of the third embodiment, the length of the leaf spring 1 is set to the first,
It is only made shorter than in each of the second embodiments. That is, the length is from the MP joint to the DIP joint, and the finger support 4 is U-shaped. The rest is the same as the first embodiment.

In the case of the third embodiment, the finger support 4 is attached to the middle phalanx.

(G) Effect of the device When wearing the finger joint correction device configured as described above, in the first embodiment, the finger support 4 is moved from the distal phalanx of the finger with flexion contracture to the fingertip. Place the palm pad 2 on the palm side of the metacarpal bone, move the band stopper 6 so that it is located at the proximal phalanx of the finger, or between the proximal phalanx and the PIP joint. Pass the tip of the band 7 from inside the insertion hole 9 on the opposite side and pull it strongly so that the palm side of the finger and the top surface of the leaf spring 1 come into close contact, and then fold the band 7 in the opposite direction. What is necessary is to adhere a member to which locking flocks of Magic Tape (registered trademark) have been applied and a member to which loop-shaped flocks have been applied.

In this way, the elastic effect of the metal leaf spring 1 and the effect of the three-point support mechanism of the finger rest 4, the palm pad 2, the proximal phalanx, or the proximal phalanx and the PIP joint allow the PIP Even if the joint and the DIP joint have stubborn flexion contracture, it is possible to correct the problem by placing both joints in an extended position at the same time.

It is generally said that the longer the flexion contracture is, the more difficult it is to correct it. However, in this example, both joints can be put into the extended position at the same time, so it can be corrected in a short period of time. can.

In addition, a flat leaf spring 1 is used, and the 15th
Since there are no spiral protrusions or angular protrusions like in the conventional example shown in Figs. etc. are easy to attach and detach.

Furthermore, since a flat leaf spring 1 is used,
The fingers with flexion contracture will be in an extended position but will not be in an overcorrected position, so there is no risk of blood circulation disorder.

Not only when a joint with flexion contracture is changed to an extended position by being tightened and fixed with the band 7, but also when the joint is put into a flexed position by passive movement or automatic movement for rehabilitation after wearing. Alternatively, even when the finger is changed to the extended position, since the finger support 4 is provided, friction will not be caused between the palm surface of the finger and the leaf spring 1.

In addition, as mentioned above, the finger support 4 is designed to be able to move back and forth along the slot 3 and to have enough play to change the angle with respect to the leaf spring 1 back and forth. , of the relevant finger
When the PIP joint and the DIP joint change from the flexed position to the extended position, or from the extended position to the flexed position by passive or automatic movement, the fingertips enter the groove 3 together with the finger rest 4. Even if the angle between the finger rest 4 and the leaf spring 1 changes back and forth as the angle of the fingertip changes back and forth, the finger rest 4 will move along the ulnar side of the distal phalanx of the finger, the palm It is possible to respond to various changes while keeping the side, radial, and peripheral parts of the fingertips in close contact at all times.

By the way, as shown in the second embodiment, when the length of the leaf spring 1 is up to the fingertip and the finger support 4 is U-shaped, there is no problem in attaching the finger support 4 to the distal phalanx. However, as in the first embodiment, even when both the PIP joint and the DIP joint have stubborn flexion contracture, correction can be made by placing both joints in the extended position. Furthermore, in the first embodiment, the finger support 4 was attached to the distal part of the fingertip.
Since the fingertips of the second embodiment are exposed, the sensation of the fingertips is not obstructed. Other effects are similar to those in the first embodiment.

As shown in the third embodiment, the length of the leaf spring 1 is
If it extends up to the DIP joint and the finger support 4 is U-shaped, the finger support 4 will be attached to the middle phalanx, so the PIP and DIP joints will be corrected at the same time. However, when the PIP joint has stubborn flexion contracture, it can be corrected by placing the PIP joint in an extended position without restricting the mobility of the DIP joint, and it does not impede sensation in the fingertips. ,
It is superior to conventional technology, as it eliminates the need for the brace to get caught when putting on and taking off clothing with sleeves.

[Brief explanation of the drawing]

Fig. 1... A perspective view showing the first embodiment of the present invention, Fig. 2... A cross-sectional view of the tip of the same example, Fig. 3... A longitudinal sectional view of the tip of the same example, Fig. 4... The same example. Fig. 5: A schematic diagram showing the state before the orthosis of the above example is attached and tightened and fixed with a band, Fig. 6... A schematic diagram showing the state in which the band of Fig. 5 is tightened and fixed, Fig. 7...A perspective view showing the second embodiment of the present invention, Fig. 8...A cross-sectional view of the tip of the same example, Fig. 9
Figures: A vertical sectional view of the distal end of the same example, Figure 10: A bottom view of the same example, Figure 11: The brace of the above example is attached,
Fig. 12 is a schematic diagram showing the state before the band is tightened and fixed. Fig. 13 is a schematic diagram showing the state in which the band in Fig. 11 is tightened and fixed. Fig. 13... The third embodiment of the present invention (second A schematic diagram showing the state before the leaf spring of the embodiment (with only the length shortened) is installed and tightened with a band, Fig. 14...1
A schematic diagram showing the state in which the band in Figure 3 is tightened and fixed, Figures 15 to 18...Both are perspective views showing the conventional example and schematic diagrams showing the state in which the band is attached.
Figures 9 and 20 are schematic diagrams showing the structure of the left hand; Figure 19 is a view from the dorsal side, Figure 20 is a view from the palm side, and Figure 21 is a schematic diagram showing the fingers and their structures. 1... Leaf spring, 2... Palm pad, 3... Groove, 4... Finger rest, 5... Connecting shaft, 6... Band stopper, 7... Band, 8... Stud, 9... ...Insertion hole.

Claims (1)

[Claims for Utility Model Registration] (a) A palm pad 2 is provided at one end of the flat leaf spring 1. (b) A vertical slot 3 at the other end of the leaf spring 1
will be established. (c) A connecting shaft 5 is provided at the bottom of the finger support 4. (d) Pass the connecting shaft 5 through the slot 3 and connect the leaf spring 1 and finger support 4 with some play. (E) The plate spring 1 between the palm pad 2 and the slot 3 is provided with a band stopper 6 that can be moved back and forth. (f) Attach the band 7 to the band stopper 6. The hand and finger joint correction device has the above configuration.