JP4053533B2 - Prosthetic joint joint joint - Google Patents

Description

  The present invention relates to a joint joint for a prosthetic device. More specifically, the present invention relates to a joint joint for prosthetics and orthotics in joint range-of-motion training for improving the movement of a hardened joint.

  In order for a person with a physical disability due to stroke, rheumatism, or a traffic accident to return to home or society and become independent, muscle strength reinforcement training weakened by paralysis or bedridden, rheumatoid arthritis, do not move after surgery Therefore, it is necessary to practice joint range of motion training to improve the movement of the joint that has solidified, basic actions such as turning over, getting up, and standing up, and practice of walking.

  In the joint range of motion training, a joint joint is used for the prosthetic limb orthosis, and the joint joint is a fixed type that does not have a range of motion, indexed at a certain angular interval, and set by a bolt or the like. A type for performing training is commercially available. However, as the movement of the fixed joint is improved by the range of motion training, it is necessary to replace the fixed type with the type for performing range of motion training.

  Since the fixed type and the range of motion training type are integrated, the upper end of the lower strut (joint 杆) and the lower end of the upper strut (joint 杆) are pivoted at the center of the disc-shaped substrate via the arm plate. A large number of screw holes are provided on the periphery of the disk-shaped substrate, and the lower strut is fixed to the screw holes with fixing screws from the screw holes provided in the lower strut. A joint joint is disclosed in which a pair of left and right movable restriction screws are screwed into the screw holes of the board and the movement is trained within the movement restriction range of the screws and the screw. The arm plate is connected to the ring plate, the ring block is fitted, the ring block is slid downward, and the lower end edge of the ring block is engaged with the groove provided on the upper end of the disk-shaped substrate. And the disc-shaped substrate are fixed, and the arm plate With the disk-shaped substrate fixed, the upper column and the lower column are fixed by stopping the disk-shaped substrate with the lower column and the fixing screw, and the upper column is removed by removing the fixing screw. The lower strut is in a fixed state, and by removing the fixing screw, the lower strut can be moved within a pair of left and right movable restriction screws and the restricted movement range of the screw, so that operation range training can be performed (For example, refer to Patent Document 1).

Japanese Utility Model Publication No. 63-193012

  However, in the joint joint having the above-described configuration, the bending angle of the lower support column (joint rod) is indexed and fixed by opening a screw hole on the periphery of the disk-shaped substrate and fixing it with a fixing screw. In order to make the index smaller, a large number of screw holes must be opened at the peripheral edge of the disk-shaped substrate, for example, in a reverse row with an angular difference from each other, and the size of the disk-shaped substrate is large. Thus, there are problems that are difficult to apply to joints for small joints, and problems that cannot be bent at an angle that can be applied to sit straight on the structure.

  In addition, a pair of left and right movable restriction screws are screwed into the movable restriction area, and the range of movement is repeatedly exercised while applying the left and right sides of the lower support within the restriction area between the screws, so the screws loosen and fall off. This is easy and requires safety considerations, and there is a problem that the clothes are caught in a groove for engaging the ring block provided at the upper end of the substrate and the clothes are damaged.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a joint joint for a prosthetic device that can freely adjust the range of motion of the joint by inserting and removing the sphere. .

  In order to achieve the above object, a joint joint for a prosthetic limb orthosis according to the present invention is fitted to a first joint base formed with a concave groove in which spheres are aligned and loaded along the circumference, and the concave groove. A convex piece projecting on the circumferential surface, and a second joint base pivotally attached to the first joint base so as to be pivotable with respect to each other by a central axis, and can be freely inserted into the concave groove by appropriate means. Thus, an operation pin for restricting the movement of the sphere loaded in the concave groove is provided.

  Here, a first joint base in which a concave groove in which spheres are aligned and loaded along the circumference is formed, and a convex piece fitted in the concave groove is provided on the circumferential surface. The joint base is pivotally attached to the central shaft. Then, when the spheres are loaded in the concave grooves and the convex pieces circulate in the groove portions to rotate the joint bases, the loaded spheres rotate smoothly in the concave grooves. Rotation can be performed. Therefore, the rotation can be stopped by inserting an operation pin into the concave groove by an appropriate means to stop the rotation of the sphere, and in this case, there is a gap in the concave groove depending on the number of spheres loaded in the concave groove. And the range of motion of the joint base can be adjusted by the gap.

  In order to achieve the above-mentioned object, the joint joint for prosthetics and orthotics according to the present invention is fitted so that a rotor in which a plurality of concave grooves in which spheres are aligned and loaded along a circumference is formed is rotatable. The first joint base and the convex piece fitted into the concave groove of the rotor are projected on the circumferential surface, and the first joint base is interposed with the rotor interposed by the central axis. A second joint base pivotally attached to each other and an operating pin for appropriately locking the rotation of the rotor with respect to the first joint base by means of the above are provided.

  Here, a rotor in which a plurality of concave grooves in which spheres are aligned and loaded along the circumference is pivotally attached to the first joint base and is fitted in the concave grooves of the rotor. The second joint base on which the protruding piece is projected on the circumferential surface is pivotally attached to the center axis so as to be rotatable. And it is set as the structure which provides the actuating pin which latches rotation of a rotor by a means suitably. Therefore, in a state where the rotation of the rotor is locked, the convex piece of the second joint base fitted in the concave groove is rotated by the gap in the concave groove depending on the number of spheres loaded in the concave groove. Therefore, the movable range of the joint base can be adjusted by taking in and out the sphere. Further, the rotor is rotated by releasing the locking of the rotor by the operating pin, and the second joint base integrated with the convex piece fitted in the concave groove of the rotor is also the same. It becomes possible to rotate.

  In addition, by loading a sphere in one of the grooves formed in the split shape and mounting an elastic member that can expand and contract in the other groove, the joint base to be mounted as a prosthetic joint or artificial joint of an orthosis is The action of restoring the original position by the repulsive force of the elastic member occurs with respect to the bending of the hand and the foot within the movable range.

  Also, adjustment of the range of motion suitable for the patient by adjusting the number of spheres to be loaded in the concave groove by providing a mechanism for taking in and out the sphere into the concave groove from the first joint base or the second joint base. Is possible.

  In the joint joint for prosthetic limbs of the present invention having the above-described configuration, for example, the first joint panel is fixed to the movable prosthesis or the orthosis, and the second joint panel is fixed to the fixed prosthesis or the orthosis. When fixed, the operating pin is operated to stop the spheres aligned and loaded in the circumferential concave groove formed in the first joint board part, and the convex piece provided on the second joint base is fixed. By sandwiching with the sphere, the first joint board portion can be kept fixed, and by removing the sphere, the number of the extracted spheres becomes a gap, and the first joint board within the gap. Range of motion can be exercised by moving the part.

  In addition, the indexing angle is determined by the diameter of the sphere and the distance from the pivotally pivotable axis to the center of the sphere aligned and loaded in the circumferential concave groove, and the indexing angle can be reduced. It is effective for adjustment in a small range of bending angle, and it is effective for obtaining a simple and compact joint joint. It can be applied to joints for small joints and unlocks the rotor by the operating pin. Thus, the first joint board part can be freely rotated, and can be folded, and can be applied to the case of a lower limb joint joint or sitting on the right side.

  Further, the convex piece provided on the second joint base is applied to a sphere aligned and loaded in the concave groove of the first joint base to restrict the rotation of the first joint base, and the range of motion training is performed. Even if it is repeatedly applied and exercised in the range of motion, it can be safely done without loosening and falling off like a screw, and it does not form irregularities on the outside of the joint, so there is no possibility of getting caught and damaged when fitting the joint etc. .

  Furthermore, by attaching an elastic spring to the concave groove, it is possible to exercise the range of motion by adding a spring force, so that it is possible to increase the muscular strength while performing the range of motion training.

Hereinafter, embodiments of the present invention will be described with reference to the drawings to provide an understanding of the present invention.
Example 1
As shown in FIGS. 1 (a) and 1 (b), disk-shaped first joint base 3 and second joint base 4 are provided at the lower end portion of the upper joint rod 1 and the upper end portion of the lower joint rod 2. A concave groove 5 is formed along the circumference of the first joint base 3.

  And the convex piece 6 fitted in the ditch | groove 5 is formed in the circumferential surface of the 2nd joint base 4, The 1st joint base 3 and the 2nd joint base 4 are mutually rotatable with the center axis | shaft 7. It is pivotally attached in a state.

  Further, a plurality of spheres 8 formed of cemented steel material are sandwiched between the convex pieces 6 of the second joint base 4 in the concave grooves 5 formed along the circumference of the first joint base 3. A screw hole 9A is formed in the outer peripheral edge of the first joint base 3 so as to communicate with the concave groove 5, and a screw-type operating pin 10 is screwed into the screw hole 9A. Thus, the inside of the concave groove 5 is closed, and the rotational movement of the sphere 8 is locked or released.

  In addition, two screw holes 9B having a diameter that allows the sphere 8 to be inserted and removed freely are drilled on the outer surface of the second joint base 4 so as to communicate with the inside of the concave groove 5. A lid screw 11 for closing is screwed.

  Here, for example, when the upper joint rod 1 is attached to the prosthesis or the orthosis with the fixed joint and the lower joint rod 2 as the movable side, when the inside of the concave groove 5 is closed by the operating pin 10, When the sphere 8 is loaded in a state where no gap is generated, the rotational movement of the sphere 8 in the concave groove 5 is stopped and the rotation of the second joint base 4 is locked. Next, by removing the lid screw 11 from this state and removing the necessary number of spheres 8 loaded in the concave groove 5, a gap is created between the spheres 8, and the sphere 8 rotates and moves by this gap length. The convex piece 6 of the second joint base 4 moves in the concave groove 5. Therefore, the movable range of the second joint base 4 can be set by taking in and out the sphere 8.

  When the locking of the spherical body 8 by the operating pin 10 is released, the spherical body 8 also moves while rotating in the concave groove 5 with the rotation in the concave groove 5 of the convex piece 6 of the second joint base 4. As a result, the second joint base 4 is in a state of being freely rotatable by 360 °.

Example 2
As shown in FIGS. 2 (a) and 2 (b), a disc-shaped first joint base 3 and second joint base 4 are provided at the lower end of the upper joint rod 1 and the upper end of the lower joint rod 2, respectively. A concave groove 5A is formed in the first joint base 3, and a rotor 12 is rotatably fitted in the concave groove 5A so that a spherical body is aligned and loaded in the rotor 12 and the concave groove 5A. Groove 5B is formed, and convex pieces 6A and 6A are provided on and fitted to the circumferential surface of the second joint base 4 of the lower joint rod 2 in the concave groove 5B, and the surface of the second joint base 4 The operating pin 13 is covered with an operating cover 13, and is pivotally mounted so that it can be rotated by a central shaft 7 and a stopper screw 14 for preventing the central shaft 7 from coming off.

  And the convex part 15A, 15A is provided in two places of the outer diameter part of the rotor 12, and the circumference of the concave groove 5B in which the spherical body is aligned and loaded by the convex part 15A, 15A is divided into two, and the half of the halved half The spherical bodies 8,... Are aligned and loaded in the concave groove 5B, the elastic spring 15 is attached to the other half concave groove 5B, and the hole 16 provided in the convex portion 15A of the outer diameter portion of the rotor 12 is attached. The operation pin 10 is made to enter and exit from the side of the first joint base 3 by the operation of the operation cover 13 so that the rotor 12 can be stopped or made rotatable.

  FIG. 3 is a perspective view of the upper joint rod 1, in which a disc-shaped first joint base 3 is provided at the lower end, and a rotor 12 is rotatably fitted to the first joint base 3. Therefore, the groove diameter is made larger than the diameter of the sphere 8 to be loaded to form the recessed groove 5A, and the recessed groove 5B into which the spheres 8 are aligned and loaded by the fitted rotor 12 and the recessed groove 5A is formed. Screw holes 9B and 9B for inserting / removing the sphere 8 into / from the concave groove 5B and an insertion hole 17 for inserting the operating pin 10 from the side are drilled to form the first joint base. A bearing hole 18 </ b> A for rotating and supporting the central shaft 7 is formed at the center of 3. Further, the upper joint rod 1 is provided with mounting holes 19 for mounting on the prosthetic limb orthosis.

  The insertion hole 17 through which the operating pin 10 is inserted is formed in the side of the first joint base 3 at a position 180 degrees on the opposite side when the operation cover 13 is assembled in the opposite position, and the screw hole 9B. 9B is closed with a lid screw 11 when the ball 8 is not taken in and out.

  FIG. 4 is a perspective view of the rotor 12. Protrusions 15 </ b> A are provided at two locations on the outer diameter portion 20 of the rotor 12, and holes 16 are provided on the side portions of the protrusions 15 </ b> A. The groove 5A formed in the base 3 is rotatably fitted, and the insertion hole 17 drilled in the side portion of the first joint base 3 is matched when fitted. The operating pin 10 is inserted through the side of the first joint base 3 so that the tip of the operating pin 10 can be inserted into the hole 16. The hole 16 only needs to be provided in one of the two convex portions 15A and 15A of the rotor 12, and when the operating cover 13 is in the opposite position, the rotor 12 is turned to the opposite side of the first joint base 3. What is necessary is just to make it correspond to the hole 16 provided in the arbitrary position.

  The rotor 12 is shown in two embodiments in FIGS. 3 (a) and 3 (b). In FIG. 3 (a), a rib plate 21 is provided at the bottom to increase the strength. A groove 5B for aligning and loading the sphere 8 is formed by the upper surface, the outer diameter portion 20 and the outer peripheral wall of the groove 5A formed in the first joint base 3, and FIG. For the sake of simplicity, a groove 5B for aligning and loading the spheres 8 is formed by the outer diameter portion 20 and the outer peripheral wall of the groove 5A formed in the first joint base 3 without providing a rib plate at the bottom. It is.

  The formed concave groove 5B is divided into two by the convex portions 15A provided at two locations of the outer diameter portion 20 of the rotor 12 so that the spheres 8 are aligned and loaded. A prosthetic limb that can increase muscle strength at the same time as exercise of the joint range of motion by loading the spherical body 8,... Into the concave groove 5B of the half and inserting the elastic spring 15 into the concave groove 3B of the other half. A joint joint for orthosis is obtained.

  The diameter of the spheres 8 aligned and loaded in the concave grooves 5B is approximately 2 to 4 mm, and steel balls whose surface is hardened and hardened are mainly used. The elastic springs inserted into the concave grooves 5B are coiled. The coiled outer diameter of the wound spring is about 2 to 4 mm.

  FIG. 5 is a perspective view of the lower joint rod 2, in which a disc-shaped second joint base 4 is provided at the upper end, and convex pieces 6A, 6A are provided on the outer peripheral surface of the second joint base 4. The spherical body 8 is fitted into the recessed groove 5B for aligning and loading, and a bearing hole 18B is formed in the center of the second joint base 4 so as to be rotatably supported by the central shaft 7. Yes. Further, the lower joint rod 2 is provided with mounting holes 19 for mounting on the prosthetic limb orthosis.

  The convex pieces 6A, 6A are arranged so that one convex piece 6A (on the right in this embodiment) comes into contact with the convex parts 15A, 15A provided at two locations of the outer diameter part 20 of the rotor 12 from above. The other convex piece 6A abuts from below and is rotatably fitted in the concave groove 5B for aligning and loading the spheres 8 so that the one convex piece 6A is aligned and loaded. The other convex piece 6A is compressed by the rotation of the second joint base 4 against one end of the elastic spring 15 mounted on the other half of the concave groove 5B. It is made to do. When the muscular strength is not increased, the spring 15 is not attached.

  FIG. 6 is a perspective view of the actuating cover 13, and in order to actuate the actuating pin 10, a wavy unevenness is formed on the disk-shaped circumference, and the curved surface portion 21 </ b> A having a larger distance (dimension) from the center, and the distance. The hole 16 of the convex portion 15A provided at the outer diameter portion of the rotor 12 is provided at the position where the curved surface portion 21B is provided and the head portion of the operating pin 10 is brought into contact with the curved surface portion 21A. The tip of the operating pin 10 is inserted into the hole 16 of the convex portion 15A at the position where the head of the operating pin 10 contacts the curved surface portion 21B by rotating the operating cover 13 and rotates. The child 12 is stopped. A bearing hole 18 </ b> C is formed in the center of the working cover 13 so as to be rotatably supported by the central shaft 7.

  The operating pin 10 has a round-shaped head so as to make good contact with the arcuate surfaces of the curved surfaces 21A and 21B of the operating cover 13, and a coil spring from the side of the second joint base 4 of the lower joint rod 2. 22 is inserted, and the operation cover 13 is rotated so that the head of the operation pin 10 operates while contacting the wavy uneven surface, and is fitted at the positions of the curved surface portions 21A and 21B.

Next, usage examples will be described with reference to FIGS. 7, 8, and 9.
FIG. 7 shows a usage mode adapted to exercise the upper joint rod 1 and the lower joint rod 2 from the straight state to move within the movable limit range of the bending angle P. In the rotor 12, the distal end portion of the operating pin 10 is pushed into the hole 16 of the convex portion 15 </ b> A provided in the outer diameter portion at the position of the curved surface portion 21 </ b> B of the operating cover 13 from the side portion of the first joint base 3. It enters and is fixed by being stopped by the operating pin 10.

  The convex piece 6A and the convex piece 6A provided on the second joint base 4 of the lower joint rod 2 are fitted into the concave groove 5A formed in the first joint base 3 and to be rotatable in the concave groove 5A. The convex portion 6A on one side (right side) is formed on the concave groove 5B formed by the rotor 12 thus formed, and the convex portion on one side (right side) of the convex portions 15A, 15A provided at two locations on the outer diameter portion of the rotor 12. The protrusion 12A on the other side (left side) is positioned on the lower part of the other side (left side) of the protrusions 15A and 15A, and the rotor 12 is actuated pin 10. The upper joint rod 1 and the lower joint rod 2 are in a straight state in a state where the convex pieces 6A, the convex pieces 6A and the convex portions 15A, 15A are brought into contact with each other. Are aligned and loaded in the concave groove 5B without any gap, so that the convex piece 6A is sandwiched between the spherical body 8 and the convex portion 15A, and the upper joint rod 1 and the lower joint are connected. The heel 2 is fixed in a straight state, and when the sphere 8 is removed, a gap S is generated, and the lower joint heel 2 can be moved within the range of the bending angle P of the lower joint heel 2 with respect to the gap S. When the protruding piece 6A provided on the joint base 4 hits the sphere 8, the movement of the lower joint rod 2 is restricted.

  Then, the range of motion training is performed by moving the lower joint rod 2 within the range of the bending angle P of the lower joint rod 2 with respect to the gap S, and as the damaged joint is improved, the sphere 8 is extracted. If the gap S is increased, the range of motion can be expanded, and the range of motion can be exercised by increasing the bending angle P. The spheres 8,... Can be taken in and out by removing the lid screw 11 that is screwed into the screw hole on the side of the first joint base 3 and closed. Walking is also possible when the bending angle is in the range of 0 to 30 degrees.

  Further, along with the above-mentioned range of motion training, the spheres 8 divided by the convex portions 15A, 15A provided at the two outer diameter portions of the rotor 12 are mounted in the other half of the concave grooves 5B that are not mounted. One end of the elastic spring 15 is pressed and compressed by the convex piece 6A provided on the second joint base 4 of the lower joint rod 2, so that a spring force is applied to the lower joint rod 2 and muscle strength is increased. I can plan up. You can remove it when you can move and you are not in a situation where you can increase your strength.

  FIG. 8 shows a usage mode in the case where the range of motion training is performed in the range of the bending angle P of the lower joint rod 2 with respect to the gap S from the state where the lower joint rod 2 is bent at a certain angle Q. The angle Q is determined by sandwiching the sphere 8 between the convex piece 6A provided on the second joint base 4 of the lower joint rod 2 and the convex part 15A provided on the outer diameter portion of the rotor 12. The calculated angle can be calculated from the distance (dimension) to the center of. When the lower joint rod 2 is fixed at the angle Q, a spherical body is formed between the convex portion 15A provided on the outer diameter portion of the rotor 12 and the convex piece 6A provided on the second joint base 4 of the lower joint rod 2. The angle Q is determined by interposing 8 and the spheres 8,... Are aligned and loaded without gaps so as to be sandwiched and fixed between the spheres.

  In FIG. 9, the tip of the operating pin 10 is provided on the convex portion 15 </ b> A of the rotor 12 by the coil spring 22 in a state where the operating cover 13 is operated and the head of the operating pin 10 is positioned on the curved surface portion 21 </ b> A of the operating cover 13. This mode of use shows a state in which the lower joint rod 2 is free to rotate (flexible) through the hole 16 and is applied when, for example, the damaged joint of the lower limb is improved to a seatable state. Since the rotor 12 becomes rotatable when the tip of the operating pin 10 is removed from the hole 16 provided in the convex portion 15A of the rotor 12, the sphere 8 stopped by the convex portion 15A of the rotor 12. .. Is rotatable along the circumference of the concave groove 5B, and the lower joint rod 2 in which the convex piece 6A is sandwiched between the spherical body 8 and the convex portion 15A of the rotor 12 is rotatable.

FIG. 10 and FIG. 11 show an example in which the prosthetic device with the joint joint as described above is attached to the arm and lower limbs of the body.
In the case of the arm shown in FIG. 10, the upper joint rod 1 is attached to the upper arm proximal meniscus 24 and the upper arm distal meniscus 23 and the upper arm proximal meniscus 24, and the lower joint rod 2 is attached to the forearm proximal meniscus 25 and the cuff band. It is attached to the forearm and attached to the distal forearm 26.

  In the case of the lower limb shown in FIG. 11, the upper joint heel 1 is attached to the thigh distal half-moon 27 and the proximal femur 28 with a cuff band and attached to the thigh, and the lower joint heel 2 is attached to the proximal crus meniscus. 29 and attached to the lower leg 30 attached to the lower leg 30 with a cuff band.

Example 3
FIG. 12, FIG. 13 and FIG. 14 show other application examples of the rotor restraining mechanism by the operating pin. As shown in the second embodiment, the lower end portion of the upper joint rod 1 and the lower joint rod 2 are shown. A disc-shaped first joint base 3 and a second joint base 4 are provided at the upper end of the first joint base 3, and a rotor 12 is rotatably fitted to the first joint base 3. A concave groove 5B for aligning and loading the spheres 8 is formed.

  Then, convex portions 15A and 15A are provided at two locations on the outer diameter portion of the rotor 12, and the circumference of the concave groove 5B for aligning and loading the spheres is divided by the convex portions 15A and 15A into two half-divided concave portions. Spheres 8,... Are aligned and loaded in the groove 5 </ b> B, and an elastic spring 15 is attached to the other half of the recessed groove 5 </ b> B to operate in the hole 16 provided in the convex portion 15 </ b> A of the outer diameter portion of the rotor 12. The rotor 12 can be stopped or rotated by allowing the pin 10 to enter and exit from the side of the first joint base 3.

  Further, convex pieces 6A and 6A are provided on and fitted to the circumferential surface of the second joint base 4 of the lower joint rod 2, and the first joint base 3 is attached by the center shaft 7 and the stopper screw 14 for retaining. It is pivotally attached so that it can rotate.

  Therefore, as a mechanism for allowing the operating pin 10 to enter and exit from the side portion of the first joint base 3 into the hole 16 provided in the convex portion 15A of the outer diameter portion of the rotor 12, the operating pin is provided on the side portion of the first joint base 3. 10 is provided with a projecting portion 32 in which a through-hole 31 is formed so as to communicate with the insertion hole 17 through which the operating pin 10 is inserted from the side, and the operating pin 10 is connected to the projecting portion 32 via a compression spring 34. A pull type operation button 33 is mounted.

  Here, as shown in FIGS. 15 (a) and 15 (b), during rehabilitation, it is provided on the convex portion 15A of the outer diameter portion of the rotor 12 by the spring force of the compression spring 34 provided in the through hole 31. The tip of the operating pin 10 is inserted into the hole 16, and the pull type operating button 33 is crowned on the upper end of the protrusion 32.

  When releasing the locking of the rotor, the pull type operation button 33 is pulled and rotated 90 degrees while resisting the spring force of the compression spring 34 so that the lower end of the pull type operation button 33 is connected to the protrusion 32. By engaging with the upper end, the lower joint rod 2 is freely rotated 360 degrees by maintaining the state where the tip of the operating pin 10 is pulled out from the hole 16 provided in the convex portion 15A of the outer diameter portion of the rotor 12. can do.

  When the rotation of the rotor 12 is locked again, the pull type operation button 33 is pulled, rotated 90 degrees and released, and the spring force of the compression spring 34 causes the tip of the operation pin 10 to move out of the rotor 12. When the second joint base 4 of the lower joint rod 2 is turned from this state, the operating pin 10 circulates around the outer diameter portion of the rotor 12, and the outer diameter of the rotor 12 is reached. When the position of the hole 16 provided in the convex portion 15 </ b> A is aligned, the tip of the operating pin 10 is inserted into the hole 16 and the rotor 12 is locked. Thus, the pulling operation button 33 is pulled and turned to lock and release the rotor, and the operation by the patient himself can be easily performed.

  In addition, two screw holes having a diameter that allows the sphere 8 to be freely inserted and removed are drilled on the outer surface of the second joint base 4 so as to communicate with the inside of the concave groove 5, and the screw holes are closed. A cover screw 11 is screwed.

Example 4
FIGS. 16 (a), (b), and (c) are prosthetic limbs that are used for joints of orthotics manufactured by using a prestic or the like based on molding of the thigh, lower leg, upper arm, and forearm. The application example of the joint joint for orthoses is shown.

  A mounting hole 19 is formed in the mounting flange 35 protruding along the circumference of the first joint base 3 and the second joint base 4. A rotor 12 is rotatably fitted to the first joint base 3, and a concave groove 5 </ b> B for aligning and loading the spheres 8 is formed in the rotor 12.

  Then, convex portions 15A and 15A are provided at two locations on the outer diameter portion of the rotor 12, and the circumference of the concave groove 5B for aligning and loading the spheres is divided by the convex portions 15A and 15A into two half-divided concave portions. Spheres 8,... Are aligned and loaded in the groove 5 </ b> B, and an elastic spring 15 is attached to the other half of the recessed groove 5 </ b> B to operate in the hole 16 provided in the convex portion 15 </ b> A of the outer diameter portion of the rotor 12. The rotor 12 can be stopped or rotated by allowing the pin 10 to enter and exit from the side of the first joint base 3.

  Here, the operating pin 10 is provided with a male screw on the outer peripheral surface thereof, and a female screw is also provided in the insertion hole 17 formed in the side portion of the first joint base 3. The operating pin 10 is screwed into the insertion hole 17, and the operating pin 10 is screwed in with a hexagonal bench or the like, thereby moving into and out of the hole 16 provided in the convex portion 15A of the outer diameter portion of the rotor 12.

  In addition, two screw holes having a diameter that allows the sphere 8 to be freely inserted and removed are drilled on the outer surface of the second joint base 4 so as to communicate with the inside of the concave groove 5, and the screw holes are closed. A cover screw 11 is screwed.

Example 5
FIGS. 17, 18 and 19 show application examples of joint joints for prosthetics and orthoses when used for ankle joints.

  The lower part of the first joint base 3 is connected to a bifurcated joint rod 36A to be connected to the equipment attached to the foot, and the upper part of the second joint base 4 is connected to the equipment attached to the lower leg. A joint rod 36B is formed, and mounting holes 19 are formed in the joint rods 36A and 36B. A rotor 12 is rotatably fitted to the first joint base 3, and a concave groove 5 </ b> B for aligning and loading the spheres 8 is formed in the rotor 12.

  Then, convex portions 15A and 15A are provided at two locations on the outer diameter portion of the rotor 12, and the circumference of the concave groove 5B for aligning and loading the spheres is divided by the convex portions 15A and 15A into two half-divided concave portions. Spheres 8,... Are aligned and loaded in the groove 5 </ b> B, and an elastic spring 15 is attached to the other half of the recessed groove 5 </ b> B to operate in the hole 16 provided in the convex portion 15 </ b> A of the outer diameter portion of the rotor 12. The rotor 12 can be stopped or rotated by allowing the pin 10 to enter and exit from the side of the first joint base 3.

  Here, the operating pin 10 is provided with a male screw on the outer peripheral surface thereof, and a female screw is also provided in the insertion hole 17 formed in the side portion of the first joint base 3. The operating pin 10 is screwed into the insertion hole 17, and the operating pin 10 is screwed in with a screwdriver or the like, thereby moving into and out of the hole 16 provided in the convex portion 15A of the outer diameter portion of the rotor 12.

  In addition, two screw holes having a diameter that allows the sphere 8 to be freely inserted and removed are drilled on the outer surface of the second joint base 4 so as to communicate with the inside of the concave groove 5, and the screw holes are closed. A cover screw 11 is screwed.

20 and 21 show an example in which the prosthetic device with the joint joint described in detail in Example 4 is attached to the arm and lower limbs of the body.
As shown in FIG. 20, when creating an elbow orthosis, a patient's upper arm and forearm are molded with plaster, and an upper arm brace 37 with a cuff band and a forearm orthosis molded by a plastic material based on the mold. 38 is made, and the first joint base 3 and the second joint base 4 of the present invention are bonded to the upper arm brace 37 and the forearm brace 38 as joint joints of the upper arm brace 37 and the forearm brace 38, respectively.

Further, as shown in FIG. 21, when creating a knee brace, a femoral brace 39 and a lower leg brace 40 with a cuff band formed of a plastic material are created, and the joint joints of these femoral brace 39 and the lower leg brace 40 are produced. As described above, the first joint base 3 and the second joint base 4 of the present invention are baked and fixed to the thigh brace 39 and the lower leg brace 40. Further, when creating a short leg brace, the first joint base 3 and the second joint base 4 of the present invention are baked and fixed as joint joints of the lower leg brace 40 and the foot brace 41, respectively.
In addition, the brace | sticker to which the 1st joint base 3 and the 2nd joint base | substrate 4 of this invention were baked and fixed as a joint joint of the thigh orthosis 39, the lower leg orthosis 40, and the foot orthosis 41, respectively, is called a long leg apparatus.

Next, FIG. 22 shows a state in which the prosthetic device with the joint joint described in detail in the fifth embodiment is mounted as an example joint joint of the lower leg device and the foot device.
A bifurcated joint rod 36A connected to the lower portion of the first joint base 3 is fixed to the foot orthosis 41, and a joint rod 36B connected to the upper portion of the second joint base 4 is fixed to the lower leg device 40. The

  In this embodiment, a coiled spring is used as an elastic member. However, it is not always necessary to use a spring, and a material having an elastic force repelling pressure contact by a convex piece rotating in a concave groove. For example, any member such as rubber, urethane, or silicon may be used.

  Further, the mechanism for locking or releasing the rotor by the operating pin is not necessarily the mechanism described in detail in this embodiment, and any mechanism can be used as long as the rotor can be easily locked or released. It may be a mechanism.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing in Example 1 of the joint joint for artificial limb orthoses which concerns on this invention. It is explanatory drawing in Example 2 of the joint joint for artificial limb orthoses which concerns on this invention. It is a perspective view of an upper joint rod. It is a perspective view of a rotor. It is a perspective view of a lower joint rod. It is a perspective view of an action | operation cover. It is a top sectional view of a form of use adapted to train a range of motion from a straight state. It is a plane sectional view of a mode of use adapted to exercise a range of motion from a bending traffic jam. It is a plane sectional view of the state where it can freely rotate. It is explanatory drawing which shows the state which mounted | wore the arm part with the artificial leg orthosis which attached this invention. It is explanatory drawing which shows the state which mounted | wore the leg part with the artificial leg orthosis which attached this invention. It is explanatory drawing of the upper joint collar in Example 3 of the joint joint for prosthetics orthoses which concerns on this invention. It is explanatory drawing of the lower joint collar in Example 3 of the joint joint for prosthetics orthosis which concerns on this invention. It is principal part expanded sectional explanatory drawing in Example 3 of the joint joint for prosthetics orthotics which concerns on this invention. It is explanatory drawing which shows the effect | action state of the action | operation pin in Example 3 of the joint joint for prosthetics orthoses which concerns on this invention. It is explanatory drawing in Example 4 of the joint joint for prosthetics orthosis which concerns on this invention. It is explanatory drawing of the 1st joint base in Example 5 of the joint joint for prosthetic limbs concerning the present invention. It is explanatory drawing of the 2nd joint base in Example 5 of the joint joint for prosthetic limbs concerning the present invention. It is an assembly explanatory view in Example 5 of the joint joint for artificial limb orthosis concerning the present invention. It is explanatory drawing which shows the state which mounted | wore the upper arm orthosis and the forearm orthosis with the joint joint for artificial leg orthosis which concerns on Example 4 of this invention. It is explanatory drawing which shows the state which mounted | wore the thigh orthosis, the leg thigh orthosis, and the foot orthosis with the joint joint for artificial leg orthosis concerning Example 4 of this invention. It is explanatory drawing which shows the state which mounted | wore the leg thigh orthosis and the leg orthosis with the joint joint for artificial leg orthosis which concerns on Example 5 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Upper joint rod 2 Lower joint rod 3 1st joint base 4 2nd joint base 5, 5A, 5B Concave groove 6, 6A Convex piece 7 Center axis 8 Sphere 9A, 9B Screw hole 10 Actuation pin 11 Cap screw 12 Rotor 13 Actuating cover 14 Stopper screw 15 Spring 15A Protruding portion 16 Hole 17 Insertion hole 18A, 18B, 18C Bearing hole 19 Mounting hole 20 Outer diameter portion 21 Rib plate 21A, 21B Curved portion 22 Coil spring 23 Upper arm distal half moon 24 Upper arm vicinity Position half moon 25 Forearm proximal half moon 26 Forearm distal half moon 27 Thigh distal half moon 28 Thigh proximal half moon 29 Lower leg proximal half moon 30 Lower leg distal half moon 31 Through hole 32 Protrusion 33 Pull type actuating button 34 Compression spring 35 Mounting rod Part 36A, 36B Joint rod 37 Upper arm orthosis 38 Forearm orthosis 39 Thigh orthosis 40 Lower thigh orthosis 41 Foot orthosis

Claims (5)

A first joint base configured in a disk shape and having a groove formed along its circumference;
A second joint is provided with a projecting piece that fits into the recessed groove, and pivotally attached to the first joint base in a state in which the projecting piece is fitted into the recessed groove. The foundation,
A sphere loaded into and out of the concave groove,
A prosthetic limb orthosis that is configured to be freely inserted into a hole penetrating into the groove from the outer peripheral edge of the first joint base, and includes an operation pin that restricts movement of the sphere by being inserted into the groove. Joint joint for
A joint joint for prosthetics and orthotics in which a rotation range of the second joint base with respect to the first joint base is adjusted according to the number of the spheres loaded in the concave groove . 2. The artificial limb according to claim 1, wherein a movement range of the convex piece is restricted by the sphere loaded in the concave groove to adjust a rotation range of the second joint base with respect to the first joint base. 3. Joint joint for orthoses. A first joint base configured in a disc shape and having an annular groove formed along its circumference;
A rotor that is rotatably arranged in the concave groove and divides the concave groove in a circumferential direction;
When fitted into the concave groove, a convex piece protrudes, and a second joint pivotally attached to the first joint base in a state where the convex piece is fitted into the concave groove. The foundation,
A sphere loaded into and out of the concave groove,
A prosthetic limb that is configured to be freely inserted into a hole penetrating into the groove from the outer peripheral edge of the first joint base, and includes an operating pin that restricts movement of the rotor by being inserted into the groove. A joint joint for orthosis,
A joint joint for prosthetics and orthotics in which a rotation range of the second joint base with respect to the first joint base is adjusted according to the number of the spheres loaded in the concave groove . The artificial limb according to claim 3 , wherein a movement range of the convex piece is restricted by the sphere loaded in the concave groove to adjust a rotation range of the second joint base relative to the first joint base. Joint joint for orthoses. One of the concave grooves divided by the rotor is loaded with the sphere, and the other region is provided with a stretchable elastic member,
The joint joint for prosthetic limbs according to claim 3 , wherein the elastic member is compressed when the second joint base rotates with respect to the first joint base .

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