JPH04502419A - Adjustable splint assembly - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Adjustable splint assembly Background of the invention Field of application of invention The present invention relates to an adjustable splint assembly. More specifically, the invention provides flexion and extension Disorders in body joints due to contractures, weakening or bending of supporting musculature or other ailments that interfere with the integrity of the body's joints during extension. The present invention relates to a combination of a capable irrigation device and an external fixation device.

People experience flexion and extension of body joints such as the knee and elbow joints due to many different causes. Contracture of extension often occurs. Weakness, use, fracture, surgery, trauma and others The cause of this is a decrease in the ability to flex and extend the knee or elbow joint. It has been known. Ilizarov plastic surgery hands for feet or hands, especially when it comes to surgery Common postoperative disorders include contracture of the knee joint or elbow joint, or range of motion of the joint. There is a decrease in In the 1950s, Professor Ilizarov of the Soviet Union achieved virtually no bleeding. We have developed an external fixation device to treat bone injuries using a surgical technique. The device is It consists of multiple metal rings attached around the limb to be placed, and also through the skeletal part. A wire is attached that is surgically implanted and connected to a metal ring.

Tension is applied between the rings to apply force to the bone and promote healing. There is. ~This device is approved in the United States for the following treatments: to the US This device is approved for the following treatments:

1 Fixation of fractures 2 Pseudo-joint of long bones 3. Elongation of limbs 4. Correction of bony or soft tissue deformities or defects by this procedure as described above. A common disorder is joint contracture or reduced joint range of motion. however, Adjustable and quantifiable pressure as does the adjustable splint assembly described herein. A device that reduces flexion contracture of the knee or elbow joint resulting from Ilizarov surgery. does not currently exist.

Apply lots of water to the knees and elbows to support or mobilize the joints. The equipment and mechanisms are designed.

A description of such a device is provided in U.S. Patent No. 3055359.3785372.37991 59.3928872.4397308.4485808.4508111.4 No. 538,600 and No. 4,657,000. However, these devices All of Ilizarov's external fixation devices are designed to alleviate contractures. These devices do not require long-term use by patients to effectively reduce contractures. I can't stand it.

Purpose of invention It is therefore an object of the present invention to improve the flexion and extension of body joints, in particular the knee or elbow joints. Modifications incorporating fixation devices, such as Ilizarov's external fixation device, to reduce contractures. The object of the present invention is to provide an improved splint assembly.

Another object of the invention is to provide a method for controlling one of the limbs through a body joint, in particular a knee joint or an elbow joint. Incorporates a fixation device that can be adjusted stepwise to apply the required quantifiable force. Our goal is to provide an adjustable splint assembly.

Furthermore, it is an object of the present invention to protect the limbs around the joints of the body, in particular around the knee or elbow joints. An object of the present invention is to provide an improved adjustable splint assembly for supporting limbs of children.

Summary of the invention These and other objects of the present invention provide an adjustable splint and fixation device. orthopedic splint assembly, in which the adjustable The brush includes a distal strut, a proximal strut that is pivotally connected to the distal strut, and a proximal strut that is pivotally connected to the distal strut. one of the posts shall have a pivoted head at one end forming a camming surface; and mounted within another strut and bringing said distal and proximal struts closer together or in agreement; is pressed into engagement with said cam surface to apply a quantifiable force to adjustable pressing means, and the fixing device includes a right ring and a left ring. a plurality of surgical wires to be implanted through the bone, the wires having a right ring at each end; and substantially intersect with each other near the center axis of the right ring. and a plurality of surgical wires similarly connected to and intersecting within the left ring. means for connecting said surgical wire to the right ring and the left ring; and a means for connecting said surgical wire to the left ring; The upper rod is connected to the right ring with the other end connected to the right ring, and the upper rod is connected to the left ring with one end connected to the right ring. a lower rod, the other end of which is connected to the right ring on the side opposite to the lower rod; means for connecting the upper and lower rods to the right and left rings; and said adjustable The fasteners are slidably attached to the distal struts of the splint, and the fasteners are means for securing the part to the distal muscle; and said tightening means securing the part to the right link of said fixation device. and means for securing said adjustable splint assembly to a limb. It consists of

In a preferred embodiment, the invention includes a pair of distal struts and a pair of proximal struts. , each member of the Ilizarov external fixator ring and its pair of distal struts at its base. said members of the base pair shall be pivotally connected to the members of the struts of the base of the base of the limb joint. spaced apart to accommodate the limbs in close proximity, and in front of the distal pair. The members shall be spaced apart such that they can be attached to the Ilizarov ring. furthermore, at least one of said struts has a pivoted head portion forming a cam surface. and shall be mounted within a strut that is pivotally connected to the strut containing said cam surface. , and apply a quantifiable force to bring the struts, including the cam surfaces, closer together or into alignment. adjustable pressing means pressed into engagement with said cam surface for the purpose of Each member of the terminal strut shall be fastened to the In order to securely hold the column, the said fastening means means for fixing the part, and the said fastening means for fixing the part. Each shall be connected to an Ilizarov external fixator ring, said tightening being partially to the Ilizarov external fixator ring, as well as at least the base of the limb. and means provided for holding between the pair of base supports.

In one embodiment of the invention, the adjustment splint includes a pre-wire collection placed on the base strut. A component is provided by which the adjustable splint is secured to the limb. This activity is movable and tunable. The feature of an articulated wire assembly allows the splint of the present invention to accommodate a variety of limb lengths. Can be accommodated. In addition, a new snap-on comfort pad attaches to the splint post. This significantly improves patient comfort.

Another aspect of the invention is a novel cuff for attaching a splint to a limb, which Designed to accommodate limbs of varying length.

Brief description of the drawing The present invention will be better understood by way of a detailed description accompanied by the following drawings which illustrate preferred embodiments of the invention. The layers will become clear.

Figure 1 shows minimal excursion of the base strut incorporating an Ilizarov external fixator. FIG. 2 is a side perspective view of an adjustable splint that relieves flexion contracture.

Figure 2 shows the maximum displacement of the base strut incorporating an Ilizarov external fixator. FIG. 3 is a side perspective view of an adjustable splint assembly for reducing contractures in flexion.

Figure 3 shows an adjustable splint to reduce flexion contracture incorporating an Ilizarov external fixator. FIG.

Figure 4 shows the two clamps connected to the base struts of the adjustment splint with Ilizarov. FIG. 2 is a front perspective view of an external fixator.

Figure 5 shows the Ilizarov external fixator ring and the hand connecting it to the two fasteners. FIG. 3 is a side perspective view of the stage.

FIG. 2 is a partially exploded perspective view of a Zaroff external fixator.

FIG. 7 shows one distal end and one proximal end of an adjustable splint of the present invention for reducing flexion contractures. is a perspective view of a strut assembly with the struts cut out and attached thereto; Adjustable spring bias means are shown.

FIG. 8 is an exploded perspective view of the splint of FIG. 6.

Figure 9 shows a collection of "separable" wires that attach means for securing the brush to the limbs. FIG. 2 is a perspective view of a brush provided with a part.

Figure 10 shows a cuff designed to be attached to the wire assembly shown in Figure 9. It is.

FIG. 11 shows one distal end and one base of an adjustable splint of the present invention for reducing extension contractures. FIG. 3 is a perspective view of the strut assembly of the An adjustable spring biasing means is shown.

Figure 12 shows a sliding pre-arrangement for attaching the means for fixing the splint to the limb. FIG. 3 is a perspective view of a splint with adjustable wire assemblies.

Figure 13 shows a wire assembly designed to accommodate limbs of varying circumference. FIG. 3 is a plan view of the outer side of another arm cuff worn on the body.

FIG. 14 is a perspective view of the cuff shown in FIG. 13.

FIG. 15 is a perspective view of a wedge-shaped comfort pad used in combination with the adjustable splint of the present invention. This is a perspective view.

FIG. 16 shows a rectangular comfort pad used in combination with the adjustable splint of the present invention. FIG.

Example Referring to FIGS. 1-3, in accordance with the present invention, a combination with an Ilizarov external fixator 3 is shown. The adjusted splint 1 is shown. shown in a typical configuration (e.g., mounted on the leg). The Ilizarov external fixator 3 is attached to the entire left circumference surrounding the patient's leg (e.g. thigh). It is composed of a ring 4a and a right full-circumference ring 4b, where the rings 4a and 4b passes one or more wires 36 (see FIG. 4) through the bone and inserts said wires into each link. surgically implanted into the leg by attaching it to the connector 33 disposed in the leg. It will be done. If you pay attention to Figures 1 and 4, you will notice that the right full-circumference ring 4b has a threaded rod. A series of holes are provided to accommodate 6a and 5b. The left circumferential ring 4a has the screw mentioned above. A similar hole is provided to accommodate the opposite end of the rod. In the preferred configuration the screw thread The pads are positioned one above the patient's leg and one below it and tighten. The attached parts 2a and 2b are respectively approximately 270° around the outer circumference of the right full circumference ring 4b. It can be attached to the ring at a 90° angle. Tighten parts 2a and 2. b is attached to the right full circumference ring at hole 9 using bolt 8 and nut 10 ( (See Figures 4 to 6). After that, the tightening parts 2a and 2b are adjusted by adjusting the splint 1. Securely connected in place to fit the Ilizarov external fixator 3.

Referring to the figure, the adjustment splint 1 includes proximal struts 6 and 6a and distal struts 7 and 6a. It consists of 7a. The adjustment splint 1 is tightened to the left on the pillars 7 and 7a at the distal end. Part 2a and the right tightener are respectively inserted into the hole 14 in the center of part 2b (see Figures 4 to 6). tightening to securely hold the end struts 7 and 7a on the right full-circumference ring 4b. By tightening the bolt 12 and nut 16 that compress the part, the Ilizarov It is adapted to an external fixator 3. In the configuration shown, the tightening section is Connect to a Zaroff external fixator, provided there is a suitable connection means to provide such adaptation. It must be understood that it can be used. For example, connecting an adjustable splint to a ring It would be possible to create an Ilizarov ring with built-in means.

Referring to FIGS. 6-8, the base column 6 includes a round head portion 17 and The distal post 7 has a socket for receiving it in pivotal engagement with the head 17. A cut head portion 19 is included. The round head portion 17 forms a cam surface 20. It is also provided with an axially recessed surface 23. Has screw hole 27 The first face plate 25 covers one side of the combined hot parts 17 to 19, and A second face plate 28 (see FIG. 8) having a screw-in protruding member 29 When positioned over the twisted head parts 17 to 19, the protruding member 29 It protrudes through the recessed surface 23 and receives the screw 31 through the screw hole 27. Ru. The proximal strut 6a and the distal strut 7a have similar numbers, but with a distinguishing suffix. is similarly pivoted by a corresponding member marked a.

The base support and the distal support may be made of plastic, metal, wood, etc. It can be constructed from various materials having sufficient strength. Especially stainless steel It is preferable to use stainless steel. Of the above-mentioned pillars, at least one pillar may be be at least partially hollow to accommodate the characteristic adjustable spring device There is a need.

As shown in the figure, the tip side is tubular, and the base side strut is solid. but However, all struts can be tubular to reduce weight if necessary. .

In order to make each support column 6.6a expandable and retractable, two columns are used, as shown in FIG. It is preferable that the fitting member is provided with a fitting member that can be taken in and out. Explain about Figure 12. The support column 6 is equipped with fitting members 150 and 151 that can be taken in and out.

The inner fitting member 150 has a series of threaded holes 150 and the outer fitting member 151 each have a threaded hole and an unthreaded hole; A screw 153 is passed through the hole 152 that coincides with the other hole, and is screwed. like this With a mating structure that can be inserted and removed freely, various lengths can be applied to more people. An adjustable splint can be provided. This example splint device is suitable for various limb lengths. It includes a series of spring biasing members 39 (see FIG. 8) of variable length for use. can be done.

An adjustable spring biasing member or spring device, shown generally as 30, is located on the proximal or It may be provided on any of the distal support columns. However, only the base side supports 6 and 6a Preferably, the spring device is provided.

The adjustable spring device 30 is equipped with a north (presser) 34 that presses the pressure receiving surface 20. A spring 32 is provided.

The spring 32 is generally a coil spring or a spiral spring (clock spring). ck spring). Adjustable screw device 35 connects spring 3 2, and the spring force can be adjusted. With the adjusted spring force, As shown in FIG. 2 and FIG. 7, and the base side support 6a and the tip side support 7a are arranged in a straight line and adjacent to each other. the tendency for mating struts to be parallel to each other) or, as shown in Figure 11, to be in contact. near (i.e., proximal strut 6 to distal strut 7, and proximal strut 6a to distal strut 7) It is possible to provide either a tendency to move the column 7a closer to the column 7a. progress Or, when the bending reaches its maximum, a force is acting on the compression coil spring 32. adjustable The screw fitting W135 is an “Allen” type head screw screwed onto the spring contactor 39. ("A11sn"hsid screw) or head screw with A-7 screw It is equipped with Ryu 37. "Allen" type head screw 37 is connected by screw 43. It is fixed within the tip side support column 7. The "Allen" type head screw 37 is '5 socket wrench ('Al1en'5 socket wrench) 4 2 and rotated by the wrench 42 (see FIG. 6). This is it The slotted head screw can be adjusted using a standard screwdriver blade. It becomes. By turning the screw, a larger compressive force of the spring 32 can be obtained. As a result, a larger force in one direction acts on the pressure receiving surface 20 of the base support column 5. Before The allowable load range of the spring device is from Okg (O bond) to the maximum allowable load of the spring. Returns the range of . Generally, the allowable load range of the spring device is 0 kg (0 pounds). and 4.54 kg (10 lb), and the load of the spring corresponds to the change in the position of the connecting part, For example, it changes as the degree of curvature changes from 60° to 01°.

In order to recover from knee or elbow flexion contracture, the range of motion of the joint with biasing force must be adjusted to the degree of flexion. It is desirable that the angle is between 0° and 60°. The joint movable range with biasing force is the support 7 The fitting member is attached to the round head 17 by changing the position and the support 6 The above-mentioned internal fitting member can be attached to the socket type support part 19 by changing the position. It can vary within approximately 360 degrees. Similarly, pillar 6 The same changes can be made to a and 7a.

Naturally, it is important to be able to change the range of movement of joints with biasing forces, as disease or injury may result. This causes various limits in the range of joint movement and requires a range of movement accompanied by a biasing force. This is because that. In another example, in the case of progressive contracture recovery of the knee, range of motion with biasing force is The degree of curvature of the enclosure is preferably 40° to 130°. The spring device is within this range It can be adjusted so that it can exert a biasing force. This adjustment is done on load display line 4. a spring contactor 39 marked with 5; and an adjustment scale 47 attached to the base support 6; This can be done by providing the following. Adjustment scale 47 is slot-in 4 5 is now visible.

In the embodiment of the present invention, the above-mentioned spring device was used as the adjustable biasing means. As would be readily apparent to those skilled in the art, pneumatic or liquid positive drive biasing means may be used as well. can be done.

The rotation axes of the pillars 6 and 6a that are rotatably connected are in the same line as the rotation axis of the joint. Place it on the upper and lower limbs as close as possible so that it is on top and next to the joint. Various devices can be used for fixation. Fixing means as shown As shown in FIG. A proximal cuff 51 is provided. The base side cuff 51 having a certain length means The lower limbs are spaced far enough apart to allow for easy joint movement. For covering The flap 55 has one end connected to the proximal support column 6a, and has a Velcro hook on the outer surface. It is equipped with a coupling means such as lcro hook) 56.

The Velcro hook 56 allows the flap to be wrapped around the proximal side of the upper and lower limbs. After that, attach the Velcro loop ( Maelcr.

1oops) is fixed at 57.

A cuff is a strap that is wrapped around the upper and lower limbs and acts to resist external forces. The role of

a set of connected struts, such as proximal struts 6 pivotally coupled to proximal struts 7; The pillar is fixed to the lateral side of the upper and lower limbs to be treated by appropriate means, and the distal pillar 7 is fixed as appropriate. Ilizarov external fixator (Ilizsrov ExjernxlFf) by means of xsto'r) 3, by fixing it to the right ring 4b, it can be However, it can be used as a splint. As before, tie or secure the splint device. For example, a distal and proximal cuff of sufficient length can be used to Appropriate means can be used, such as wrapping around the distal and proximal portions. Wear. The strap or flap 55 and the cuff 51 may be sewn, tied, etc. It can be fixed to the support by any suitable method.

To facilitate the joining of the cuff and strap, a wire assembly is provided as shown schematically in Figure 9. Preferably, the assemblies 72, 76 are attached to the struts 6, 6a, respectively, by welding. Yes.

The wire assembly 72 includes a thin upper wire portion 93 and a lower wire portion 92. Each wire portion extends from one end of the support column 6a to the other end. similarly , the wire assembly 76 includes a thin upper wire portion 90 and a lower wire portion 90. 91. In the preferred embodiment shown in FIG. The short side of the bully is continuous and welded to the post for a stronger connection. It's bent. The wire assembly 76 shown in FIG. 9 is of the "split" type. This differs from wire assembly 72 in this point. The following is the “r division” type. Insert the cuff or strap for cleaning, replacement, etc. as described. This is to make it easier to remove. That is, the wire assembly 76 is It has an upper wire part 90 and a lower wire part 91 which are thin in shape, and both wire parts are , are divided at 97 and 98 points, respectively. Therefore, the cuff or strap The wires may be pulled apart slightly from each other when the wires are attached or removed.

In the embodiment shown in FIG. 12, both wire assemblies 60 are of the "split" type. one of the wire parts of the base support, that is, two of the receiving wires. has telescopic fitting portions, that is, fitting portions B and B' that can be taken in and out. Telescopic fit Joining part B has a screw on the inner surface of one end in order to engage the threaded end of the wire. It has been subjected. This makes the wire more firmly fixed. Usually a telescopic fit The wire assembly with joints B and B' has a strut that creates a 65 degree bend. used only laterally.

When using this adjustable splint for joint advancement, the straps should placed between. In the case of multiple cases, especially in the case of recovery from knee flexion contracture, both branches 6, Preferably, a strap 120 is used between 6a. Strap 12 like this The use of This is important for achieving an optimal arrangement. The strap 120 is a splint connection device. to better align the axis of rotation of the splint with the axis of rotation of the joint to which the splint is applied. is also helpful.

A Velcro hook section 108 and a Velcro loop section are shown in FIG. Cuff 102 with section 110 is coupled to the wire assembly shown in FIG. To do so, you can take the following methods:

The looped end 104 of the cuff 102 is connected to the Velcro hook section 108 and the bell Pass the wire through the split point 97 so that the black loop section 110 is on the outside. 90. The edge 106 of the wire assembly 72 is moved over the upper and lower limbs. Pass under the wire part 93 and return it onto the cuff and attach the Velcro hook 108 to the cuff. 110. This allows the splint assembly to be attached to the upper and lower limbs on both sides of the joint. One of the two cuffs required for wearing is fixed. Wire part 91 and A similar procedure is used to attach a cuff or strap to 92.

Each cuff and strap has Velcro hooks and loops at their ends. An appropriate fixing means such as the following may be provided. Velcro fasteners as a fixing method Although shown, other fasteners such as snaps can also be provided on the straps and cuffs. Ru.

Figures 13 and 14 show a novel cuff that can be used to secure a splint device to the upper and lower limbs. Shown below. As shown in these figures, the upper cuff 30 allows the upper and lower limbs on the proximal side to adapt to the function of the joint. It is long enough to fit together. The outer surface of the cuff top 30 is mutually divided and Velcro loop sections 132 and Velcro hook sections 134 are arranged alternately. between which there is a Velcro hook section and a Velcro loop. A region having both sections lined up in the cuff width direction is provided. hook The area has both a Velcro loop section and a loop section. an intermediate section 138 having a velcro or velcro hook section; The portion 138 is a Velcro loop section of one section adjacent to the cuff in the longitudinal direction. the same as the Velcro loop or hook on the other section. It is most desirable that the That is, as shown in FIG. The region of the velcro loop section 132 is located at the middle portion 13 of the velcro loop section. 8, and the intermediate portion 138 has Velcro loop sections 1 on both sides in the cuff width direction. It is in contact with 36. On the other hand, the Velcro loop section 134 The area is continuous with the area having the lower hook section 142, and the area is continuous in both directions in the cuff width direction. The side is in contact with the Velcro loop section 143. Longer cuff required If necessary, further areas can be, for example, only Velcro loops. .

The looped end 144 of the cuff 130 includes a stay receiving portion 146. The station - The receiving part 146 is made of plastic to prevent various damages that may easily occur during use. A stay 147 made of wood is inserted. There are multiple stay receiving parts on the inside of cafe 30. 148 are provided. The cuff is shown as square in the diagram. deer However, the cuff has various assemblies to suit the specific upper and lower limbs to which it is applied. Attachment to the patient's upper and lower limbs can be performed as described above.

In a preferred embodiment of the invention, the splint device is shown in FIGS. 15 and 16. As shown, the snap-on attachment is an auxiliary or comfort pad (snap-on c). otfort psd). The comfort pad is shown in Figure 15. There are two types available: the wedge-shaped one shown in Figure 10, and the square-shaped one shown in Figure 10. Ru. The wedge-shaped comfort pad shown in Figure 15 has a wedge-shaped base with a snap-fitting section. It is equipped with 145. The snap-fitting section consists of spaced strips. The base plate 150 includes nap elements 152 and 152'. Ru. The rectangular comfort pad shown in FIG. It has a rectangular base 155 with openings 159, 159'. Wedge-shaped base 1 45 and rectangular base 155 are made of any suitable lightweight material such as foamed plastic. can be made. The wedge-shaped comfort pad allows the adjustable splint of the invention to be placed below the knee, for example. applied to the lower limbs, such as the legs of In this example, the two wedge-shaped comfort pads They are each attached to the base support in a snap manner. The installation is a wire assembly. The thicker side of each wedge is connected to the pivot between the lower leg and the strut in the limb. It is made to be directed towards the department.

The rectangular comfort pad is also threaded in the wire assembly to the upper and lower limbs and up to the post. Can be attached in a nap style.

When the adjustable splint of the present invention is applied to the lower extremity, two square comfort pads are placed on the lower extremity. Disposed on a lateral comfort pad. At this time, one pad is attached to the base column and the other The other pad is arranged on the distal column. In contrast, this adjustable splint, for example, When used on the upper extremities, square comfort pads are reserved. in this case, Usually two rectangular comfort pads are placed proximally on each side of the upper extremity with a snap fit as described above. Mounted on a pole.

A feature of the adjustable spring biasing mechanism of the present invention is that it can exert a quantitative force on the upper and lower extremities. That is. The number varies from 0 foot bond to maximum at various joint parts. It can work up to a foot pound.

For example, if your knee has a flexion contracture of 30 degrees, apply the brush to the knee and A force of 57 pounds can be applied to the shin at the knee contracture angle. If the person subsequently develops greater tolerance to the device, the By adjusting the mechanism, greater forces can be applied. The adjustment is simply “ Adjust the "Allen" type wrench 42 to create a greater compressive force in the spring within the column. obtained by This puts a greater compressive force on the spring inside the column. do. This creates a greater force that advances the joint, resulting in knee flexion. Recovery from flexural contracture can be achieved more effectively. Also, the patient has a 45° flexion contracture. If you have one, you can get it by adjusting the dial by 30 degrees. In other words, the pillar At any angle of knee flexion, force up to the maximum permissible load of the spring installed in the You can also adjust the dial for songs. According to the invention, force generation The source spring is replaceable, so depending on the specific use of the device, the spring mechanism Therefore, the degree of force generated can be varied.

For patients with weak quadriceps, consider using more force to extend the knee. A stronger spring will be needed.

A special condition for which this adjustment splint for joint flexion can be used is progressive contracture. . In other words, the patient is unable to bend various joints such as knees and elbows within their normal range of motion. It is in a state of For the sake of simplicity, we will focus on the knee joint.

In an extensor contracture of the knee, whether the contracture is caused by muscles or joints, the patient is unable to move the knee. It can be bent up to 45 degrees, but no more. Book adjustment splint for flexion When applied, it acts on the lower leg on the proximal and distal sides of the knee and moves the shin to the rear of the thigh. It is beneficial because it gives rise to the power of trying to get closer. The force generated by the splint is Regardless of the allowable load of the spring used, zero foot It can be adjusted to work from a pound of torque to a maximum torque. appropriate force The maximum size of the It is thought that the size is as follows. The exact amount of force required depends on patient tolerance. , determined by contracture type and duration, skin compliance, diagnosis, etc. .

Once the initial force and duration of splint application are determined, changes in force and duration can be applied to the head, respectively. This is achieved by a simple adjustment of the screw 37 and an increase in time.

Referring to FIG. 2, an adjustable splint in combination with the Ilizarov external fixator of the present invention is shown. The effect will be explained in relation to knee extension procedures following Ilizarov femoral surgery. .

Within a week of Ilizarov surgery, the adjustable splint is connected to the Ilizarov external fixator be done. First, the proximal arm cuff 51 is placed under the patient's calf and is also shown in FIG. Two wedge-shaped comfort pads are placed interveningly and laterally along the calf and proximally. (See Figure 3). The tightening part is Ilizarov ring all around the right side. Tighten parts 2a and 2b to ends of struts 7 and 7a until they come into contact with rods 4b. Slide along each. After matching the midline of the distal post to the foot, attach the adjustment splint. Connects to the Ilizarov external fixator and tightens to securely hold the adjustable splint. Ru. In proper configuration, the axis of the adjustment splint joint should be concentric with the axis of the patient's knee joint. and the distal and proximal struts should be placed against the patient's thighs and calves. Must be located on the median line. First, the socket wrench 42 is a scale setting scale. Must be turned to set 1.0 of reading on scale 47 (6th (see figure).

After installing the adjustment brush for 3 days, the tension reading on the calibrated scale should be in 1/2 increments daily as long as can tolerate the additional tension or until the procedure is complete. You can move forward.

The unique features of this device with Ilizarov external fixator in leg or arm applications are: It is possible to obtain force that can be adjusted in stages and quantitatively, and to limit the bending of the knee or elbow. By stretching away from the body, you can relax the stretching around the joints. That's what it means. This stretches the tissue, does not interfere with the adjustment of the spring, and A period of rest can be obtained without requiring removal of the child.

To relieve pressure on the contracted tissue, the patient must simply remove the splint in some way. All you have to do is stretch your joints and get into a comfortable position. Once you get a short break The splint then exerts an opposing force on the contracture tissue, causing the joint to create more flexion. help. In case of extension contracture of the knee or elbow, the flexion is from 45° to other negative factors. The contracture progresses to the theoretical upper limit of 135° to 150°, taking into account . The time it takes to see visible results with this splint depends on many factors. It depends more and more. Some of these factors include: patient diagnosis, Ilizarov treatment. degree of placement, age of the patient, duration of contracture, and patient tolerance.

Having described the features of the present invention with reference to specific embodiments, the features of the present invention have been described in the appended claims. Various structural modifications may be made without departing from the technical scope of the present invention as defined by It is possible.

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Claims (15)

[Claims] (1) An adjustment splint assembly consisting of an adjustment splint and a fixation device, which The adjustable splint has a distal strut and a proximal strut that is pivotally connected to the distal strut. one of the struts having a pivoted head portion at one end forming a cam surface; be installed within another strut, and bring the distal and proximal struts closer together or pushing into engagement with said cam surface to apply a quantifiable force to cause mating. the fixing device comprises a right ring and a left ring. a plurality of surgical wires implanted through the bone, the wires having each end connected to the periphery of the right ring and substantially intersecting each other near the central axis of the right ring; shall also be connected to the left ring and intersect within the left ring. a plurality of surgical wires and means for connecting said surgical wires to the right ring and the left ring; and an upper rod connected at one end to the left ring and at the other end to the right ring; The lower end is connected to the ring and the other end is connected to the right ring on the side of the ring opposite the upper rod. part rods and means for connecting said upper and lower rods to the right and left rings. a tightening portion slidably attached to the distal post of said adjustable splint; means for securing the clamping portion to the distal post; and a means for securing the clamping portion to the distal post; and means for connecting said adjustable splint assembly to the right ring of said limb; an adjustable splint assembly comprising means for adjusting the splint; (2) The adjustable splint assembly according to claim 1, wherein the adjusting pressing means is an adjusting spring means. Mburi. (3) The adjustment spring means includes a spring and a nose component connected to one end of the spring. , and adjusting screw means for engaging the other end of the spring. Adjustable splint assembly. (4) The adjustment screw means is connected to the spring abutting member and the screw member fixed to the support column. a screw member to be screwed together, one end of the screw member having a rotatable head; The adjustment splint according to claim 3, wherein the other end of the threaded member engages with the spring abutment member. assembly. (5) The adjustable splint assembly according to claim 4, wherein the head is a socket. (6) The adjustment splint assembly according to claim 5, wherein the spring contact member is provided with an instruction display. Mburi. (7) The adjustable splint according to claim 6, wherein the column to which the adjusting spring means is attached is hollow. assembly. (8) The hollow support includes an elongated hole, and the screw member and instruction display can be seen through the elongated hole. , the elongated hole also has a scale along its entire length to set the applied force. 8. The adjustable splint assembly of claim 7. (9) At least one of the base struts has outer and inner nesting parts and a front means for fixedly attaching the inner nesting parts to each other; is provided with a wire assembly to facilitate attachment of the adjustable splint assembly to the limb; The wire assembly includes an upper wire section and a lower wire section, each of which has an upper wire section and a lower wire section. extends substantially the length of said outer nested portion and is attached to said portion. The adjustable splint assembly of claim 1. (10) The wire section of the wire assembly that receives most of the pressure during use should be A reinforcing member is provided that can expand and contract along the wire portion and can be fixed to the end of the crack in the wire portion. 10. The adjustable splint assembly of claim 9. (11) The adjustment subassembly according to claim 1, wherein the distal strut has a larger diameter than the proximal strut. Child assembly. (12) Place the thicker part of each wedge-shaped comfort pad near the base of the pivot engagement point of the post. that of the base strut in the wire assembly on the medial side of the strut between the limb and the strut. Wedge-shaped snap-on comfort pads on each side and at the base on the lateral sides of the column. Combined with rectangular snap-on comfort pads on each post. 10. The adjustable splint assembly of claim 9. (13) The means for fixing and holding the base of the limb between the pair of base supports includes at least at least one Velcro loop spaced apart from one Velcro hook strip consisting of an elongated cuff member having a cuff at one end thereof, with said loop and hook Each strip has a strip of velcro that includes both Velcro hook and Velcro loop strips between them. 10. The spring-loaded adjustable splint assembly of claim 9, further comprising a spring-loaded adjustable splint assembly. (14) The zone between the Velcro hook and Velcro loop strips placed apart is , consisting of the same Velcro loop band or Velcro hook band as the preceding band, and A Velcro loop strip or tape that is the same as the Velcro hook or loop strip that follows. Claim 1 consisting of a part having a Lucrohook band and an intermediate part where each side part contacts. 3. The spring-loaded adjustable splint assembly of claim 3. (15) The end band of the cuff has a strip on the outside thereof extending substantially the width of the cuff. A stay receiving means is provided for receiving the arm cuff. a plurality of stays positioned along the length of the cuff and receiving stays that extend across the cuff; 10. The spring-loaded adjustment according to claim 9, further comprising spaced apart stay receiving means. Orthopedic splint assembly.