JP5779767B2 - Finger joint extension orthosis - Google Patents

Description

The present invention is used for the improvement, prevention, and correction of joint flexion contractures caused by trauma such as finger fractures, dislocations, and joint ligament injuries. It relates to braces.

Joints tend to contract flexion in the course of treatment of trauma such as finger fractures, dislocations, and joint ligament damage. If the flexure contracture is strong, the fingers will bend and become hard, and this will interfere with daily life.

As a conventional device for improving and treating flexion contracture caused by fractures of the fingers, dislocation, joint ligament damage, etc., finger joint correction device (open S64-50817) Fig. 8a, extension correction force with screw 9a, safety pin splint 10a, carpenter coil splint 11a in which a rotation axis is provided in accordance with the motion axis of the finger joint, and finger reverse knuckle bender splint 12a.

The safety pins splint 10a, the carpenter coil splint 11a, and the finger reverse knuckle bender splint 12c are shown in FIG. 12a. As shown in FIGS. 10 b, 11 b, and 12 b, it fits the finger size. When the above-mentioned splints (ores) are swollen and enlarged, the fingers are located between the holding part 1 of the splint (oring), the central palm side support part 2 and the peripheral palm side support part 3, and the fingers are located on the above holding part 1. When the central palm side support part 2 and the peripheral palm side support part 3 are tightened, the blood is congested and pain occurs. Conversely, when the swelling of the finger is reduced, the sprint is loose and can be worn. Furthermore, the safety pin sprint FIG. 10a and the carpenter coil sprint FIG. 11a use an existing pin and coil spring as the extension correction force, so that the extension correction force cannot be finely adjusted, and the finger reverse knuckle bender sprint sprint FIG. Since it is used as the stretch correction force, fine adjustment of the stretch correction force involves the complexity of changing rubber with different traction forces.

Joint Jack Finger Sprint Fig. 9a, finger joint orthosis (actually open S64-50817) is a swollen finger that solves the problems of safety pin sprint Fig. 10a, carpenter coil sprint Fig. 11a, finger reverse knuckle bender sprint Fig. 12a Or it can be worn on a finger with reduced swelling. However, although the joint jack finger splint FIG. 9a can be finely adjusted with the screw 9 using the leaf spring 15 for the correction force, the finger joint correction device without the screw 9 is rotated similarly to the movement of the finger joint axis extending as in FIG. 8a. It is not possible to follow the movement of the joint axis of the finger by bending the finger joint part with the holding part 1 without the shafts 4 and 4 and extending the finger that is bent from the back of the joint. 13, the joint extending between the finger pad and the distal palm side support portion 2 and the distal palm side support portion 3 is lifted from the central palm side support portion 2 and the distal palm side support portion 3 as shown in FIG. Pain occurs in the upper and lower ends of the abdomen and joints.

Full-open S64-50817

How to make and use hand sprints Medical Press Co., Ltd. Munehiro Ikuta 1998

Therefore, in order to solve the problem of the conventional joint extension brace for improving and treating the flexion contracture of the fingers as described above, the present invention reduces the swelling and swelling in the middle. Fingers that are narrowed can be fitted with fingers that fit without squeezing blood pressure with braces, and fingers with joints flexed and contracted at various angles can be adjusted to the appropriate angle. It is an object of the present invention to provide a joint extension brace that follows movement and corrects and stretches a finger without burdening the joint and without causing pain.

In order to solve the above problems, the present invention is characterized by a finger extension brace that satisfies the following requirements (1) to (8) .
(1) It has a pressing part, a support part, and a connection fixing part.
(2) The pressing part holds the back of the finger joint.
(3) Among the finger pads before and after the joint of the finger, the support part is a central palm side support part that supports the base side of the finger on the inner surface, and a peripheral palm side support part that supports the tip side of the finger on the inner surface. It consists of two parts.
(4) The connection fixing part is formed so that the pressing part and the support part are relatively moved while being pressed against each other, and can be fixed at an arbitrary movement position.
(5) The central palm side support part and the distal palm side support part are formed to rotate around a rotation axis parallel to the rotation axis of the finger joint so as to follow the movement of the finger pad.
( 6) The pressing portion has a lateral wall that covers the finger joint and extends on both sides of the finger.
(7) The said horizontal wall is provided with the elongate hole along the moving direction of the said support part.
(8) At least one of the central palm side support portion and the distal palm side support portion is fixed so as to be rotatable around a rotation axis passing through the elongated hole.

According to the present invention, the central palm side support portion 2 and the distal palm side support portion 3 are moved to change the distance between the inner surface of the pressing portion 1 and match the size of the finger to be fitted. It is easy to put on and take off, and the entire finger is not tightened by the holding part 1 that holds the back part of the joint, and even if the finger is swollen, the blood flow of the finger is pressed with the brace and does not become congested. Further, the central palm side support portion 2 and the distal palm side support portion 3 support the finger pad and move by the connecting and fixing portions 7, 8, and 9 and extend the bent fingers while following the movement of the joint axis of the finger. Since it is corrected and fixed in place, the joint is not burdened and pain does not occur.

1 is a perspective view of a wrist joint extension device according to the present invention. FIG. It is a front view of the finger joint extension orthosis according to the present invention. 1 is an exploded view of a wrist joint extension device according to the present invention. FIG. It is the figure which the rotation of the central palm side support part 2 and the peripheral palm side support part 3 and the movement of the joint axis of a finger are following. In order to be worn according to the thickness of the finger, the upper and lower parts in the frame of the holding part 1 of the central palm side support part 2 and the distal palm side support part 3 with the rotating shafts 4 and 4 as fulcrums by rotating the fastener 9 It is the front view which moved. In order to wear it according to the thickness of the finger, by rotating the fastener 9, the pivotal shafts 4, 4 are used as fulcrums to support the central palm side support portion 2 and the holding portion 1 of the distal palm side support portion 3. It is the side view which moved up and down. By rotating the fastener 9 clockwise, the central palm side support portion 2 and the distal palm side support portion 3 are pushed up by the push-up portion 7, and the finger is extended by rotating upward with the rotation shafts 4 and 4 as fulcrums. It is a figure which shows doing. FIG. 10 is a side view of another embodiment in which the abutting member 7A and the abutting member 7B of the push-up portion 7 are provided with the rotating shafts 4 and 4 at the abutting portions on the central palm side support portion 2 and the distal palm side support portion 3, respectively. Others in which the abutting portions of the abutting members 7A, 7A, 7B, 7B having four legs extending in the front, rear, left, and right are supported by the central palm side support portion 2 and the distal palm side support portion 3 by the rotation shafts 4, 4. It is a side view of a form. FIG. 7b is a perspective view of the configuration of FIG. 7b. An ellipse frame-shaped pressing portion 1 having both side walls perpendicular to each other, and a fixing means for a fastener 16 which is provided with a claw-like protrusion on a bar-like 19 having row-like teeth on one side and meshes with the teeth 20 of the bar-like 19 It is a perspective view of the vertical movement part 7. FIG. A cross section of the bottom part of the fastening means 16, the vertical movement part 7 and the holding part 1 provided with a claw-like projection on the bar-like 19 having row-like teeth on one side instead of the bolt and meshing with the teeth 20 of the bar-like 19 FIG. It is the side view which mounted | worn the finger | toe to the finger joint correction equipment (full open S64-50817). It is the front view which mounted | wore the finger | toe joint correction device (full open S64-50817) with the finger | toe. It is a side view of the joint jack finger sprint attached to the finger. It is a front view of the joint jack finger sprint attached to the finger. It is a side view of the safety pin splint attached to the finger. It is a front view of the safety pin splint attached to the finger. It is a side view of the carpenter coil sprint attached to the finger. It is a front view of the carpenter coil sprint attached to the finger. It is a side view of the reverse knuckle bender sprint for fingers with which it was equipped. It is a front view of the reverse knuckle bender sprint for fingers with which it was equipped. It is a side view of the joint jack finger splint attached to the finger whose joint is considerably bent.

A finger joint extension device according to the present invention will be described in detail with reference to FIGS.

  As shown in FIG. 3, the finger extension device of the present invention includes a pressing portion 1, a central palm side support portion 2, a support portion of the distal palm side support portion 3, and connection fixing portions 7, 8, 9. The main material can be hard plastic, aluminum, stainless steel, etc. Hard plastic is suitable if it has sufficient shape retention and durability. The cushioning material 11 may be a low resilience cushion, sponge, or the like. The rotating shafts 4 and 4 use metal screws and meshes that can be rotated, and the fixing means for fixing at a predetermined position of the coupling fixing part uses a bolt 8 and a fastener 9 that can be easily rotated by hand. ing.

The holding part 1 has a rectangular tube-shaped frame body provided with elongated holes 6 and 6 on both sides, mainly provided with a recessed part 10 in the ceiling part, and cushioning material 11 placed under the recessed part 10, and pushed up to the left and right of the bottom part. There are holes 14, 14 penetrating the two thin rods 12, 12 of the portion 7, and the depression 10 is sized to match the bulge of the back of the finger joint and holds the back of the joint extended by the cushioning material 11. Has a mechanism to fix. The lateral wall of the pressing portion 1 is wider and perpendicular to the width of the corresponding finger so that both sides of the attached finger are in contact and are not tightened.

The support part has two parts, a central palm side support part 2 and a distal palm side support part 3, and moves up and down in the frame of the pressing part 1 to change the distance from the inner surface of the pressing part to the size of the finger to be fitted. Has a mechanism to match the height. One end of the central support side support portion 2 is supported by a rotating shaft 4, 4 that can move up and down along the long holes 6, 6 of the pressing portion, and is disposed rearward. While moving, it rotates up and down around the pivot shafts 4 and 4. The distal palm side support portion 3 is supported at one end by rotating shafts 4, 4 that can move up and down along the long holes 6, 6 of the pressing portion, and is disposed in the front. While moving, it rotates up and down around the rotating shafts 4 and 4. Since these support portions 2 and 3 are moved up and down in the frame of the pressing portion 1 along the elongated holes 4 and 4 of the pressing portion 1 to change the distance from the inner surface of the upper surface of the pressing portion 1, swelling and swelling are pulled. It is possible to fit a finger.
In the present invention, the pivoting angle of the central palm side support portion 2 and the distal palm side support portion 3 can correspond to various bent joint angles, and the central palm side support portion 2 and the distal palm side support portion can be bent without any gap between the bent finger pads. 3 is a mechanism that follows the movement of the joint's motion axis while being supported on the upper surface of 3 and extends the bent finger by rotating the central palm side support portion 2 and the distal palm side support portion 3 upward and rotating upward. It has. FIG. 4 shows the rotation of the central palm support unit 2 and the peripheral palm support unit 3 while the central palm support unit 2 and the peripheral palm support unit 3 support the finger pads bent at various angles without gaps. It shows that the movements of the motion axes of the finger joints are the same.

The connecting and fixing portion is composed of a bolt 8 and a fastener 9 which are tightly coupled to the center of the bottom of the push-up portion 7 and the press portion 1 and protrude vertically downward, and are located below the press portion 1 and the central support side support portion 2. The peripheral palm side support 3 is rotated and pushed up while moving up and down to be fixed at a predetermined position.

The push-up portion 7 has a U-shaped cross section, and a hole 13 is provided at the center of the bottom so as to pass through the bolt 8 that protrudes vertically downward from the center of the bottom of the presser portion 1. The thin rods 12 and 12 pass through the holes 14 and 14 on the left and right sides of the bottom portion of the pressing portion 1, and have a mechanism that allows the pressing portion 1 and the push-up portion 7 to approach each other without shaking. Abutting members 7A and 7B that come into contact with the lower surfaces of the central palm side support portion 2 and the distal palm side support portion 3 are provided before and after the push-up portion 7.

By rotating the fastener 9 of the connecting and fixing portion clockwise, the contact portion materials 7A and 7B before and after the push-up portion 7 push the central palm side support portion 2 and the distal palm side support portion 3 upward from the lower surface, and the rotation shaft 4 4 is rotated upward with the fulcrum 4 as a fulcrum and moved upward within the frame shape of the pressing portion 1 to make the finger fit up and down so that the finger is pressed down, the central palm side support portion 2 and the distal palm side support portion. 3 has a mechanism in which the finger is bent while following the movement axis of the joint while fixing the back surface of the joint, and fixed at a predetermined position. By rotating the fastener 9 counterclockwise, the push-up portion 7 provided with the contact members 7A and 7B moves downward and away from the presser portion 1, and the central palm side support portion 2 and the distal palm side support portion 3 become the presser portion 1. In the frame shape of the frame, while rotating around the rotation shafts 4 and 4 as a fulcrum, the finger is swollen while wearing and the finger is swollen during wearing, and the holding part 1 and the central support side support part 2 By holding the finger firmly in the peripheral palm side support portion 3, it has a mechanism for fixing it at a predetermined position according to the angle of the bent joint and the size of the swollen finger at the time of wearing.

Next, a procedure for actually using the finger joint extension device of the present invention will be described with reference to FIGS. 5a, 5b, and 6. FIG. A finger is fitted into the frame of the pressing portion 1 from the central palm support portion 2. The finger joint is positioned on the back surface of the finger joint and the rotary shafts 4 and 4 on the ceiling portion 10 of the depression portion of the pressing portion 1. When the swollen finger is thick, the fastener 9 of the bolt 8 is rotated counterclockwise, and the push-up part 7 is moved downward from the holding part 1 and separated to release the central palm side support part 2 and the peripheral palm side support part 3. , And the central palm side support part 2 and the distal palm side support part 3 are moved under the frame of the holding part 1 so that the gap between the fingers is widened up and down. At the same time, the central palm side support portion 2 and the distal palm side support portion 3 are rotated downward to support the finger pad so that the finger joints are placed at an angle at which the finger joint is bent. If the bending angle of the joint is large, the fastener 9 is rotated counterclockwise to move the push-up portion 7 downward and away from the presser portion 1 to rotate the central palm side support portion 2 and the distal palm side support portion 3 downward. Adjust the angle. For example, if the finger joint is bent 45 degrees, the bolt 9 is rotated counterclockwise and the push-up portion 7 is moved downward as shown in FIG. The rotating shafts 4 and 4 of the support part 3 are moved upward to rotate the central palm side support part 2 and the distal palm side support part 3 to 45 degrees so that the finger pad is placed on the support part without any gap. When the swelling of the finger is reduced and the finger is thinned, the fastener 9 is rotated in the clockwise direction so that the push-up part 7 is close to the pressing part 1 and the central palm side support part 2 and the peripheral palm side support part 3 Is moved upward, and the space between the upper and lower parts with the holding part 1 is narrowed to match with a thin finger.

FIGS. 5a and 5b show the central support side at the same time that the push-up part 7 moves up and down by rotating the fastener 9 for wearing on swollen, thickened (solid line) or thinned (broken line) fingers. 2 and the distal palm side support 3 are shown moving up and down. As shown in FIG. 5a, only the back of the finger joint and the abdomen of the finger are fixed to the pressing part 1, the central palm side support part 2, and the distal palm side support part 3, and both sides of the finger are in an open state. The blood vessel next to it cannot be tightened. As a result, the blood flow is not compressed and does not cause congestion.

If the fastener 9 is slowly rotated clockwise, the front and rear abutting members 7A and 7B provided in the push-up portion 7 move upward, and the lower surfaces of the central palm side support portion 2 and the distal palm side support portion 3 are moved. The central palm side support portion 2 and the distal palm side support portion 3 together with the pivot shafts 4 and 4 move upward in the frame of the pressing portion 1 along the long holes 6 and 6 so that the back surface of the finger joint is pressed. The joint that reaches and extends the ceiling of the hollow portion 10 of the portion 1 is pressed and fixed to the pressing portion 1, the central palm side support portion 2, and the distal palm side support portion 3. The push-up portion 7 is fixed at a predetermined position when the fastener 9 stops rotating.

As the fastener 9 is further rotated clockwise, the front and rear abutting members 7A and 7B provided in the push-up portion 7 slowly push up the lower surfaces of the central palm side support portion 2 and the distal palm side support portion 3. The central palm side support portion 2 and the distal palm side support portion 3 rotate upward about the rotation shafts 4 and 4 to extend the finger horizontally. Since the extension correction force can be adjusted by the fastener 9, the user can determine a desired angle and force. In FIG. 6, the bent finger rotates the fastener 9 clockwise so that the central palm side support portion 2 and the distal palm side support portion 3 rotate upward with the rotation shafts 4 and 4 as fulcrums. It is a figure which shows extending.

When the bolts 8 and the fasteners 9 of the connecting and fixing part are the rods 19 having the row-like teeth 20 on one side and the fasteners 16 having the claw-like projections as shown in FIGS. 7, when the winding part 21 having the fastener 16 is slid up along the rod 19, the row of teeth 20 engages with the claw-like protrusions of the fastener 16, and the fastener 16 The spring 17 provided is locked in place. When the push-up portion 7 is moved downward, if the end of the fastener 16 is pressed down in the direction of the arrow in FIG. 6, the spring is pressed and the claw-shaped protrusion rotates upward, so that the lock is released from the row of teeth 20. The winding part 21 moves downward and the push-up part 7 also moves downward.

Hereinafter, another embodiment of the present invention will be described. As shown in FIG. 7a, the respective rotating shafts 4 that follow the movement of the joint motion axis at the contact portions of the central palm side support portion 2 and the distal palm side support portion 3 on the contact members 7A and 7B of the push-up portion 7 are provided. 4 and rotating the fastener clockwise to move the push-up part 7 upward to push the central palm side support part 2 and the distal palm side support part 3 upward to move them upward. There is a form in which the joint is extended while rotating about the rotating shafts 4 and 4.

Alternatively, as shown in FIGS. 7b and 7c, the push-up portion 7 is shaped like a desk having four legs that extend downward in the front-rear and left-right directions, and the back of the finger joint is positioned so as to crotch, and the front left-right 2 It has leg contact members 7A and 7A and rear left and right leg contact members 7B and 7B, and the contact parts of the front two leg contact members 7A and 7A are located on both sides of the center of the central support side 2. The rotating shafts 4 and 4 are supported, and the contact portions of the contact members 7B and 7B of the rear two legs are supported by the rotating shafts 4 and 4 on both sides of the center of the distal palm side support portion 3. The central palm side support portion 2 and the distal palm side support portion 3 are suspended by the left and right four legs before and after the push-up portion 7 via the rotation shafts 4 and 4 so that the plate-like pressing portion 1 is attached to the true joint of the finger. Positioned below the inner surface of the upper surface of the push-up portion 7 so as to be on the upper side of the central palm side support portion 2 and the distal palm side support portion 3 suspended by bolts 8 and fasteners 9 while holding the finger joints upward. While pushing up and moving up. There is also a form in which the joint is extended while rotating about the respective rotation shafts 4 and 4.

The pressing part 1 shown in FIG. 7d is a frame-like ellipse having open parts that form both vertical walls that do not contact both sides of the corresponding finger joint. The buffer material 11 is laid down below the oval ceiling.

FIG. 7e shows a rod 19 having a row of teeth 20 on one side and a spring 17 provided with a rotating shaft 18, which is fastened to the center of the bottom of the holding part 1 instead of a bolt which is a connecting and fixing part. It consists of a winding part 21 fitted with a fastener 16 provided with a claw-like projection. A spring 17 is bonded to a fastener 16 provided with a claw-like protrusion, and the claw-like protrusion is engaged with a row of teeth 20 in a bar shape 19 so that the push-up portion 7 has a predetermined height.
In order to move the push-up portion 7 up and down, if the knob portion of the fastener 16 of the fixing means is pressed down in the direction of the arrow, the fastener rotates with the pivot shaft 18 provided on the spring 17 as a fulcrum. The claw-like projections meshed with the row-like teeth 20 move away from the row-like teeth 20, and the fixing means and the push-up portion 7 positioned thereon move up and down along the rod-like shape 19. When the knob 16 of the fastener 16 that has been pressed is released when the predetermined position is reached, the claw-like projections engage with the row of teeth 20 and the push-up portion 7 is fixed.

As shown in FIG. 7d, if the rod 19 of the fixing means is a prism, and the square hole 13 penetrating the rod 19 of the prism is provided at the bottom of the vertically moving part, the vertically moving part 7 and the pressing part 1 do not shake left and right. Vertically approaching along the prismatic rod 19, it is vertically raised on the bottom left and right of the up and down moving unit 7 as shown in FIGS. 1, 2, 3, 5 a, 5 b, and 6. The two thin bars 12 and 12 are not necessary.

INDUSTRIAL APPLICABILITY The present invention is used in medical institutions as a treatment device for flexion contracture of a finger joint.

DESCRIPTION OF SYMBOLS 1 Press part 2 Central palm side support part 3 Peripheral palm side support part 4 Rotating shaft 5 Rubber 6 Elongated hole 7 Push-up part
7A Contact member of the central palm side support
7B Contact member for peripheral palm side support
8 volts
9 Fastener
10 depressions 11 cushioning material 12 thin rods 13 holes 14 holes 15 leaf springs 16 fasteners provided with claw-like protrusions 17 springs 18 springs rotating shafts 19 rods 20 rows of teeth 21 winding parts 22 finger pads, joints 23 safety pin between the support and the support

Claims (3)

A finger extension brace that satisfies the following requirements (1) to (8) .
(1) It has a pressing part, a support part, and a connection fixing part.
(2) The pressing part holds the back of the finger joint.
(3) Among the finger pads before and after the joint of the finger, the support part is a central palm side support part that supports the base side of the finger on the inner surface, and a peripheral palm side support part that supports the tip side of the finger on the inner surface. It consists of two parts.
(4) The connection fixing part is formed so that the pressing part and the support part are relatively moved while being pressed against each other, and can be fixed at an arbitrary movement position.
(5) The central palm side support part and the distal palm side support part are formed to rotate around a rotation axis parallel to the rotation axis of the finger joint so as to follow the movement of the finger pad.
(6) The pressing portion includes a lateral wall that covers the joint of the finger and extends on both sides of the finger.
(7) The said horizontal wall is provided with the elongate hole along the moving direction of the said support part.
(8) At least one of the central palm side support portion and the distal palm side support portion is fixed so as to be rotatable around a rotation axis passing through the elongated hole. The finger extension brace according to claim 1 , further satisfying the requirements ( 9) to (12) .
(9) The pressing portion has a bottom portion located on the lower surface side of the support portion that connects the lateral walls .
(10) Both the central palm side support portion and the distal palm side support portion are fixed so as to be rotatable around a rotation axis that movably passes through the elongated hole.
(11) The connection fixing portion includes a first contact member that contacts the lower surface of the central palm side support portion, a second contact member that contacts the lower surface of the distal palm side support portion, and a first of these members There is a push-up portion that moves up and down in parallel with the bottom portion that connects the contact member and the second contact member.
(12) The bottom portion and the push-up portion are connected by variable connecting means that can be fixed by changing the distance between them. 3. The finger extension brace according to claim 1 , wherein a depression is formed in a portion of the pressing part that covers and contacts the joint of the finger, and a cushioning material 11 is formed on a lower surface of the depression. Is provided.