Elbow joint traction pressurizing device for orthopedics department

Abstract

The utility model discloses an elbow joint traction pressurizing device for the orthopedics department, and relates to the field of medical instruments. The rotating mechanism comprises a first rotating assembly and a second rotating assembly; the first rotating assembly and the second rotating assembly are rotationally fixed; a pressing plate is rotationally fixed to the first rotating assembly. The middle piece is arranged between the pressing plate and the first rotating assembly; the rotating mechanism further comprises two first limiting bolts. A plurality of first threaded holes are formed in the middle piece; the hole axis of the first threaded hole is perpendicular to the plate surface of the pressing plate; the first threaded hole is matched with the first limiting bolt; an arc-shaped guide hole is formed in the pressing plate; the rod end of the first limiting bolt can penetrate through the guide hole to be fixed in the first threaded hole in a threaded fit mode. According to the elbow joint traction pressurizing device for the orthopedics department, the problem that in the prior art, during the elbow joint injury recovery period of a patient, the elbow joint movement range is too large, and elbow joint recovery is affected is solved, and angle and range limitation can be carried out when the elbow joint of the patient moves.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, especially to an elbow joint traction and compression device for orthopedics. BACKGROUND

[0002] At both ends of the fracture site, close to the injury area and outside the injury area, needles are pierced into soft tissues and bone through the skin, and then the needles are fixed on a bracket outside the body, the bracket exerts force on the bone needles, the bone needles exert force on the bones, and then the treatment purpose of fixing, compressing or pulling the bone ends is achieved by using the force balance condition, so that the treatment purpose of orthopedic deformity correction and fracture reduction is achieved.

[0003] For elbow joint trauma, the patient needs to periodically move the elbow joint during the recovery process, and the bracket assists the patient in moving the elbow joint during the movement; after moving the elbow joint, the bracket is used again to limit the rotation of the patient's elbow joint until the patient is completely recovered, and then the bracket is removed.

[0004] In the prior art, a kind of elbow joint steering motion device is disclosed in Chinese patent application No. 202420231920.3, which provides a bracket for fixing and assisting the rotation of patient's elbow joint.

[0005] However, the structure in the above-mentioned comparative document is that the worm gear is rotatably fixed compared to the proximal rod anchoring part, the second connecting rod is fixed on the worm gear, and the proximal rod anchoring part fixes the first connecting rod. On this basis, the bone needles fixed on the first connecting rod and the second connecting rod are inserted into the bones on both sides of the elbow joint, and then the rotation of the worm gear is realized by rotating the worm, the rotation of the worm drives the rotation of the worm gear compared to the proximal rod anchoring part, thereby realizing the rotation of the first connecting rod compared to the second connecting rod, thereby moving the bone needles fixed on the first connecting rod and the second connecting rod, and the movement of the bone needles drives the movement of the bones on both sides of the elbow joint, assisting the rotation of the elbow joint.

[0006] However, the rotation angle of the worm gear is controlled by the rotation of the worm during the operation process, and the operator cannot accurately control the rotation angle and amplitude of the patient's elbow joint when rotating the worm. Different patients need to adjust the rotation angle and amplitude of the elbow joint according to the actual situation during recovery. If the rotation amplitude of the elbow joint is too large, it will damage the elbow joint of the patient and affect the recovery of the patient. UTILITY MODEL CONTENTS

[0007] To solve the above technical problems, the elbow joint traction and compression device for orthopedics provided by the utility model can limit the angle and amplitude when the patient moves the elbow joint.

[0008] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0009] The utility model provides an orthopedics elbow joint traction pressurizing device, including the first fixed establishment for fixing the bone needle, the second fixed establishment for fixing the bone needle with rotating mechanism, the rotating mechanism includes first rotation subassembly and second rotation subassembly, the first rotation subassembly with second rotation subassembly can rotate fixed, the first fixed establishment is fixed in first rotation subassembly, the second fixed establishment is fixed in second rotation subassembly, fixedly have worm wheel on first rotation subassembly, fixedly have intermediate piece on second rotation subassembly, can rotate fixedly have worm in intermediate piece, worm wheel with worm interlock fixed, fixedly have fixed link on first rotation subassembly, the end of fixed link can rotate fixedly have pressure plate, the board surface of pressure plate is perpendicular to the extension direction of fixed link, the intermediate piece sets up between pressure plate and first rotation subassembly, the rotating mechanism still includes two first limit bolts, a plurality of first screw holes are seted up on intermediate piece, the hole axle of first screw hole is perpendicular to the board surface of pressure plate, first screw hole with first limit bolt matches, with the pivot of first rotation subassembly and second rotation subassembly as the axis, first screw hole circumferential array sets up, the arc-shaped guide hole is seted up on pressure plate, the hole axle direction of guide hole is perpendicular to the board surface of pressure plate, the guide hole is strip hole, the arc direction of guide hole extends with the pivot of first rotation subassembly and second rotation subassembly, the projection of first screw hole on pressure plate board surface can be in guide hole, the rod end of first limit bolt can pass through guide hole screw thread cooperation and is fixed in first screw hole.

[0010] The utility model provides an orthopedics elbow joint traction pressurizing device, preferably, the intermediate piece is provided with a worm wheel accommodating hole; the worm wheel is rotatably fixed in the worm wheel accommodating hole; the mouth portion of the worm wheel accommodating hole is opposite to the pressure plate; a plurality of second screw holes are formed in the side surface of the worm wheel; the second screw holes are equidistantly circumferentially arranged on the worm wheel with the pivot of the worm wheel as the axis; the hole axis of the second screw hole is perpendicular to the board surface of the pressure plate; a plurality of perforations are formed in the pressure plate; the diameter of the perforation is greater than or equal to the diameter of the second screw hole; the hole axis of the perforation is perpendicular to the board surface of the pressure plate; the distance between the hole axis of the perforation and the pivot of the worm wheel is equal to the distance between the hole axis of the second screw hole and the pivot of the worm wheel.

[0011] The utility model provides an orthopedics elbow joint traction pressurizing device, preferably, the number of the perforations formed in the pressure plate is two; the diameter of the second screw hole is equal to the diameter of the first screw hole; the first limit bolt can pass through the perforation and be fixed in the second screw hole.

[0012] The elbow joint traction and pressurizing device for orthopedics is characterized in that the first fixing mechanism comprises a first connecting rod and a plurality of first needle clamping blocks for fixing bone needles; the first needle clamping blocks are slidably fixed on the first connecting rod; the second fixing mechanism comprises a second connecting rod and a plurality of second needle clamping blocks for fixing bone needles; and the second needle clamping blocks are slidably fixed on the second connecting rod.

[0013] The elbow joint traction and pressurizing device for orthopedics is characterized in that the head part of the first limiting bolt is provided with anti-skid stripes.

[0014] The elbow joint traction and pressurizing device for orthopedics is characterized in that the end part of the worm is provided with an internal hexagonal hole; the central axis of the internal hexagonal hole is coaxial with the rotating shaft of the worm; an operation hole is formed in the intermediate piece; and the end part of the worm with the internal hexagonal hole is extended out of the intermediate piece from the operation hole.

[0015] The above technical scheme has the following advantages or beneficial effects:

[0016] The utility model discloses an elbow joint traction pressurization device for orthopedics relates to the field of medical devices, including the first fixed mechanism for fixing the bone needle, the second fixed mechanism for fixing the bone needle and rotating mechanism, the rotating mechanism includes first rotating component and second rotating component, the first rotating component with second rotating component rotatable fixed, the first fixed mechanism is fixed on first rotating component, the second fixed mechanism is fixed on second rotating component, the fixed worm on first rotating component, the fixed intermediate piece on second rotating component, rotatable fixed with worm in intermediate piece, the worm and the worm interlock fixed, the fixed rod is fixed on first rotating component, the end of fixed rod rotatable fixed with the pressing plate, the board surface of pressing plate is perpendicular to the extension direction of fixed rod, the intermediate piece sets up between pressing plate and first rotating component, the rotating mechanism still includes two first limit bolts, a plurality of first screw holes are seted up on intermediate piece, the hole axis of first screw hole is perpendicular to the board surface of pressing plate, first screw hole with first limit bolt matches, with the pivot of first rotating component and second rotating component as the axis, first screw hole circumferential array sets up, the arc-shaped guide hole is seted up on the pressing plate, the hole axis direction of guide hole is perpendicular to the board surface of pressing plate, the guide hole is strip hole, the arc direction of guide hole extends with the pivot of first rotating component and second rotating component as the axis, the projection of first screw hole on the board surface of pressing plate can be in guide hole, the rod end of first limit bolt can pass through guide hole and be fixed in first screw hole with screw thread cooperation. The elbow joint traction pressurization device for orthopedics provided by the utility model solves the problem that the recovery of elbow joint is influenced by the too large activity range of elbow joint during the recovery period of elbow joint injury in the prior art, and can limit the angle and range when the patient moves the elbow joint. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model and its features, shape and advantages will become more obvious by reading the following detailed description of non-restrictive embodiments with reference to the accompanying drawings. The same mark indicates the same part in all drawings. The drawings are not drawn according to the proportion, and the emphasis is on showing the main idea of the utility model.

[0018] Figure 1 It is the whole structure schematic diagram of elbow joint traction pressurization device for orthopedics provided by the utility model embodiment 1.

[0019] Figure 2 It is rotating mechanism structure schematic diagram of elbow joint traction pressurization device for orthopedics provided by the utility model embodiment 1.

[0020] Figure 3 It is the structure schematic diagram of first limit bolt of elbow joint traction pressurization device for orthopedics provided by the utility model embodiment 1.

[0021] Figure 4 Figure 1 is a schematic view of the position relationship between the intermediate part and the worm gear of the elbow joint traction and pressurization device for orthopedics provided in Embodiment 1 of the present application.

[0022] Figure 5 Figure 2 is a schematic view of the position relationship between the worm gear and the worm of the elbow joint traction and pressurization device for orthopedics provided in Embodiment 1 of the present application.

[0023] Figure 6 Figure 3 is a schematic view of the position relationship between the first rotating assembly and the second rotating assembly of the elbow joint traction and pressurization device for orthopedics provided in Embodiment 1 of the present application.

[0024] Figure 7 Figure 4 is a schematic view of the use state of the elbow joint traction and pressurization device for orthopedics provided in Embodiment 1 of the present application.

[0025] Figure 8 Figure 5 is a schematic view of the use state of the elbow joint traction and pressurization device for orthopedics provided in Embodiment 1 of the present application. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. It should be noted that the terms used in the present application are only for describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application.

[0027] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Therefore, the detailed description of the embodiments of the present application provided in the following drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0028] Embodiment 1

[0029] The elbow joint traction and pressurization device for orthopedics provided in Embodiment 1 of the present application, like Figures 1 to 8As shown, it comprises a first fixing mechanism 1 for fixing the bone needle, a second fixing mechanism 2 for fixing the bone needle and a rotating mechanism 3; the rotating mechanism 3 comprises a first rotating assembly 31 and a second rotating assembly 32; the first rotating assembly 31 and the second rotating assembly 32 are fixedly rotatable; the first fixing mechanism 1 is fixed on the first rotating assembly 31; the second fixing mechanism 2 is fixed on the second rotating assembly 32; a worm wheel 4 is fixed on the first rotating assembly 31; an intermediate piece 321 is fixed on the second rotating assembly 32; a worm 5 is rotatably fixed in the intermediate piece 321; the worm wheel 4 and the worm 5 are fixedly engaged with each other; a fixing rod 311 is fixed on the first rotating assembly 31; an end of the fixing rod 311 is rotatably fixed with a pressing plate 312; the plate surface of the pressing plate 312 is perpendicular to the extension direction of the fixing rod 311; the intermediate piece 321 is arranged between the pressing plate 312 and the first rotating assembly 31; the rotating mechanism 3 further comprises two first limiting bolts 33; a plurality of first threaded holes 3211 are formed in the intermediate piece 321; the hole axis of the first threaded hole 3211 is perpendicular to the plate surface of the pressing plate 312; the first threaded hole 3211 is matched with the first limiting bolt 33; the first threaded hole 3211 is arranged in a circumferential array with the rotation shaft of the first rotating assembly 31 and the second rotating assembly 32 as the axis; an arc-shaped guide hole 3121 is formed in the pressing plate 312; the hole axis direction of the guide hole 3121 is perpendicular to the plate surface of the pressing plate 312; the guide hole 3121 is a strip-shaped hole; the guide hole 3121 extends in the arc direction with the rotation shaft of the first rotating assembly 31 and the second rotating assembly 32 as the axis; the projection of the first threaded hole 3211 on the plate surface of the pressing plate 312 can be in the guide hole 3121; the rod end of the first limiting bolt 33 can be threadedly fitted and fixed in the first threaded hole 3211 through the guide hole 3121.

[0030] The elbow joint traction and pressurization device for orthopedics provided by the embodiment is used by fixing the bone pins through the first fixing mechanism 1 and the second fixing mechanism 2 (for example, the bone pins are fixed by using the bone external fixing needle rod clamp device disclosed in Chinese Patent Application No. 202220800941.3, and the first fixing mechanism 1 and the second fixing mechanism 2 are fixed on the rotating mechanism 3), punctured into the bones on both sides of the elbow joint of the patient, so that the rotating shaft of the rotating mechanism 3 is consistent with the rotating shaft of the elbow joint of the patient, the rotation of the worm gear 5 is used to realize the rotation of the worm wheel 4, so as to realize the rotation of the first rotating assembly 31 relative to the second rotating assembly 32, so as to realize the rotation of the first fixing mechanism 1 relative to the second fixing mechanism 2, so as to realize the rotation of the bones on both sides of the elbow joint fixed on the first fixing mechanism 1 and the second fixing mechanism 2 by the bone pins. This function is mentioned in the background art of the comparative document, Chinese Patent Application No. 202420231920.3The disclosed elbow joint steering motion device can also be achieved, and the difference is that the structure provided by the embodiment has a pressing plate 312 fixed to the first rotating component 31, and the pressing plate 312 is provided with a guide hole 3121, which is actually a waist hole, and the middle section of the waist hole of the guide hole 3121 of the embodiment is circularly arc-shaped, and the middle piece 321 is provided with a first threaded hole 3211, when the first limiting bolt 33 passes through the guide hole 3121 and is fixed into the first threaded hole 3211, the first limiting bolt 33 fixed in the first threaded hole 3211 will touch the end of the guide hole 3121 during the rotation of the middle piece 321 relative to the pressing plate 312 (since the pressing plate 312 is fixed to the first rotating component 31, the middle piece 321 is fixed to the second rotating component 32, and the middle piece 321 rotates relative to the pressing plate 312, that is, the first rotating component 31 rotates relative to the second rotating component 32), and the pressing plate 312 will be blocked by the first limiting bolt 33 fixed on the middle piece 321, thereby limiting the rotation of the middle piece 321 relative to the pressing plate 312, at this time, the angle corresponding to the entire activity track (the activity track is an arc) of the first limiting bolt 33 in the guide hole 3121 is the rotation angle amplitude of the middle piece 321 relative to the pressing plate 312, since there are two first limiting bolts 33, by inserting the two first limiting bolts 33 into different first threaded holes 3211 through the guide hole 3121 respectively, and then changing the distance (in the circular arc direction) between the two first limiting bolts 33 in the first threaded holes 3211, the limit position of the rotation of the middle piece 321 relative to the pressing plate 312 is that the two ends of the guide hole 3121 respectively touch the two first limiting bolts 33, thereby adjusting the rotation amplitude and angle of the middle piece 321 relative to the pressing plate 312, thereby limiting the swing amplitude of the elbow joint of the patient (compared with only one first limiting bolt 33, setting two first limiting bolts 33 will reduce the rotation amplitude of the middle piece 321 relative to the pressing plate 312, and the reduced rotation amplitude is determined by the distance between the two first limiting bolts 33, thereby limiting the rotation amplitude of the first fixing mechanism 1 and the second fixing mechanism 2 of the bone needle, and thereby limiting the rotation amplitude of the bones on both sides of the elbow joint of the patient inserted by the bone needle), compared with the prior art, the embodiment has the function of limiting the activity amplitude of the elbow joint of the patient, and by limiting the activity amplitude of the elbow joint of the patient, the elbow joint is prevented from being damaged due to excessive activity amplitude.

[0031] The orthopedic elbow joint traction and pressurizing device provided by the embodiment 1 of the utility model solves the problem that the activity amplitude of the elbow joint of the patient is too large during the recovery period of the elbow joint injury in the prior art, and can limit the angle and amplitude when the patient moves the elbow joint.

[0032] As a preferred solution, in this embodiment, the intermediate 321 is provided with a worm gear accommodating hole 3212; the worm gear 4 is rotatably fixed in the worm gear accommodating hole 3212; the mouth of the worm gear accommodating hole 3212 is opposite to the pressing plate 312; the side surface of the worm gear 4 is provided with a plurality of second threaded holes 41; the second threaded holes 41 are equidistantly and circumferentially arranged on the worm gear 4 with the rotation shaft of the worm gear 4 as the axis; the hole axis of the second threaded holes 41 is perpendicular to the plate surface of the pressing plate 312; the pressing plate 312 is provided with a plurality of through holes 3122; the diameter of the through holes 3122 is greater than or equal to the diameter of the second threaded holes 41; the hole axis of the through holes 3122 is perpendicular to the plate surface of the pressing plate 312; the distance from the hole axis of the through holes 3122 to the rotation shaft of the worm gear 4 is equal to the distance from the hole axis of the second threaded holes 3122 to the rotation shaft of the worm gear 4. During the recovery of the patient and during the operation of the patient, the elbow joint of the patient needs to be fixed in a posture, at this time, the rotation of the worm gear 4 relative to the pressing plate 312 can be limited by using a screw rod to pass through the through hole 3122 and be fixed in the second threaded hole 41, so as to limit the relative rotation of the first rotation assembly 31 and the second rotation assembly 32; after the rotation of the worm gear 4 is limited, the operator cannot rotate the worm gear 4 by rotating the worm 5, so as to limit the relative rotation of the first rotation assembly 31 and the second rotation assembly 32; since the worm gear 4 is provided with a plurality of second threaded holes 41 equidistantly and circumferentially, and the pressing plate 312 is provided with only two through holes 3122, after the first rotation assembly 31 is rotated by rotating the worm gear 4 by the operator (during this process, the pressing plate 312 rotates relative to the first rotation assembly 31), the elbow joint of the patient is rotated at this time, and the second threaded holes 41 of the worm gear 4 aligned by the through holes 3122 on the pressing plate 312 change, after the elbow joint of the patient is adjusted to the required posture, a bolt is used to pass through the through hole 3122 and be inserted into the second threaded hole 41, so as to limit the rotation of the elbow joint, and the operator can conveniently operate the patient.

[0033] As a preferred solution, in this embodiment, the number of the through holes 3122 provided on the pressing plate 312 is two; the diameter of the second threaded holes 41 is equal to the diameter of the first threaded holes 3211; and the first limiting bolt 33 can pass through the through hole and be fixed in the second threaded hole 41. Since the positioning and fixing of the elbow joint of the patient and the movement of the elbow joint of the patient within a certain range are contradictory and cannot be performed at the same time, in order to facilitate the operation of the operator, the diameter of the second threaded holes 41 is equal to the diameter of the first threaded holes 3211, so that the first limiting bolt 33 is universal, and the first limiting bolt 33 is always used during the use of the different functions of the device provided in this embodiment, so as to avoid the need for two sets of separate bolt structures, thereby facilitating the storage of the first limiting bolt 33.

[0034] As a preferred solution, in the present embodiment, the first fixing mechanism 1 comprises a first connecting rod 11 and a plurality of first needle clamping blocks 12 for fixing the bone pins; the first needle clamping blocks 12 are slidably fixed on the first connecting rod 11; the second fixing mechanism 2 comprises a second connecting rod 21 and a plurality of second needle clamping blocks 22 for fixing the bone pins; the second needle clamping blocks 22 are slidably fixed on the second connecting rod 21. The needle clamping block is a prior art, such as the bone pin fixing device disclosed in Chinese Patent Application No. 202220800941.3, which discloses a kind of needle clamping block, and the specific use method is not described here.

[0035] In order to facilitate the operator to fix the first limiting bolt 33 into the second threaded hole 41 and the first threaded hole 3211, in the present embodiment, the bolt head of the first limiting bolt 33 is provided with anti-skid stripes. The operator can more easily turn the first limiting bolt 33 by the contact between the anti-skid stripes and the skin, thereby facilitating the tightening of the first limiting bolt 33 in the corresponding threaded hole.

[0036] In order to facilitate the operator to rotate the worm 5, as a preferred solution, in the present embodiment, the end of the worm 5 is provided with an internal hexagonal hole 51; the center axis of the internal hexagonal hole 51 is coaxial with the rotation axis of the worm 5; the intermediate piece 321 is provided with an operation hole 3213; the end of the worm 5 with the internal hexagonal hole protrudes out of the intermediate piece 321 from the operation hole 3213. The operator inserts an external hexagonal wrench into the internal hexagonal hole 51 through the operation hole 3213 to realize the rotation of the worm 5, which drives the rotation of the worm wheel 4 relative to the intermediate piece 321 through the rotation of the worm 5.

[0037] The utility model discloses orthopedics elbow joint traction pressurization device relates to medical instrument field, including the first fixed mechanism for fixing the bone needle, the second fixed mechanism for fixing the bone needle and rotation mechanism, the rotation mechanism includes first rotation subassembly and second rotation subassembly, first rotation subassembly with second rotation subassembly rotatable fixed, the first fixed mechanism is fixed on first rotation subassembly, the second fixed mechanism is fixed on second rotation subassembly, fixed on first rotation subassembly is worm wheel, fixed on second rotation subassembly is intermediate piece, rotatable fixed in intermediate piece is worm, worm wheel and worm are fixed with each other, fixed on first rotation subassembly is fixed rod, rotatable fixed with pressing plate in the end of fixed rod, the board surface of pressing plate is perpendicular to the extension direction of fixed rod, the intermediate piece is arranged between pressing plate and first rotation subassembly, the rotation mechanism still includes two first limit bolts, a plurality of first screw holes are seted up on intermediate piece, the hole axle of first screw hole is perpendicular to the board surface of pressing plate, first screw hole with first limit bolt matches, with the pivot of first rotation subassembly and second rotation subassembly as the axis, first screw hole circumferential array sets up, the arc-shaped guide hole is seted up on pressing plate, the hole axle direction of guide hole is perpendicular to the board surface of pressing plate, the guide hole is strip hole, the arc direction of guide hole with the pivot of first rotation subassembly and second rotation subassembly extends, the projection of first screw hole on the board surface of pressing plate can be in guide hole, the rod end of first limit bolt can pass through the guide hole and be fixed in first screw hole with screw thread cooperation. The orthopedics elbow joint traction pressurization device provided by the utility model solves the problem that the recovery of elbow joint is influenced by the too large activity amplitude of elbow joint during the recovery period of elbow joint injury in the prior art, and can limit the angle and amplitude when the patient moves the elbow joint.

[0038] The above only is the preferred embodiment of the utility model, and does not therefore limit the patent range of the utility model, and all equivalent structural transformations using the utility model specification and attached drawing contents, or direct or indirect application in other related technical fields, are all same reason and include in the patent protection range of the utility model.

Claims

1. An orthopedic elbow joint traction and compression device, characterized by, The first fixing mechanism for fixing the bone pin, the second fixing mechanism for fixing the bone pin and the rotating mechanism are included. The rotating mechanism includes a first rotating component and a second rotating component. The first rotating component and the second rotating component are rotatably fixed. The first fixing mechanism is fixed on the first rotating component. The second fixing mechanism is fixed on the second rotating component. A worm wheel is fixed on the first rotating component. An intermediate part is fixed on the second rotating component. A worm is rotatably fixed in the intermediate part. The worm wheel and the worm are fixed by being engaged with each other. A fixed rod is fixed on the first rotating component. An end of the fixed rod is rotatably fixed with a pressing plate. The plate surface of the pressing plate is perpendicular to the extension direction of the fixed rod. The intermediate part is arranged between the pressing plate and the first rotating component. Two first limiting bolts are included in the rotating mechanism. A plurality of first threaded holes are arranged on the intermediate part. The hole axis of the first threaded hole is perpendicular to the plate surface of the pressing plate. The first threaded hole is matched with the first limiting bolt. The first threaded hole is arranged in a circumferential array with the rotation shaft of the first rotating component and the second rotating component as the axis.

3. The orthopedic hinged distractor-compressor device of claim 2, wherein, An arc-shaped guide hole is arranged on the pressing plate.

4. The orthopedic hinged distractor-compressor device of claim 1, wherein, The hole axis direction of the guide hole is perpendicular to the plate surface of the pressing plate. The guide hole is a strip hole. The guide hole extends in the arc direction with the rotation shaft of the first rotating component and the second rotating component as the axis. The projection of the first threaded hole on the plate surface of the pressing plate can be in the guide hole.

5. The orthopedic hinged distractor-compressor device of claim 1, wherein, The rod end of the first limiting bolt can be threadedly fixed in the first threaded hole through the guide hole.

2. The elbow joint traction and pressure device for orthopedics of claim 1, wherein A worm wheel accommodating hole is arranged in the intermediate part. The worm wheel is rotatably fixed in the worm wheel accommodating hole. The mouth of the worm wheel accommodating hole is opposite to the pressing plate. A plurality of second threaded holes are arranged on the side surface of the worm wheel. The second threaded hole is arranged in a circumferential array on the worm wheel with the rotation shaft of the worm wheel as the axis. The hole axis of the second threaded hole is perpendicular to the plate surface of the pressing plate. A plurality of perforations are arranged on the pressing plate. The diameter of the perforation is greater than or equal to the diameter of the second threaded hole. The hole axis of the perforation is perpendicular to the plate surface of the pressing plate. The distance from the hole axis of the perforation to the rotation shaft of the worm wheel is equal to the distance from the hole axis of the second threaded hole to the rotation shaft of the worm wheel. The number of the perforations arranged on the pressing plate is two. The diameter of the second threaded hole is equal to the diameter of the first threaded hole. The first limiting bolt can be fixed in the second threaded hole through the perforation. The first fixing mechanism includes a first connecting rod and a plurality of first pin clamping blocks for fixing the bone pin. The first pin clamping block is slidably fixed on the first connecting rod. The second fixing mechanism includes a second connecting rod and a plurality of second pin clamping blocks for fixing the bone pin. The second pin clamping block is slidably fixed on the second connecting rod. The bolt head of the first limiting bolt is provided with anti-slip stripes.

6. The orthopedic hinged distractor-compressor device of claim 1, wherein, The end of the worm is provided with an internal hexagonal hole; the central axis of the internal hexagonal hole is coaxial with the rotation axis of the worm; the intermediate part is provided with an operation hole; the end of the worm with the internal hexagonal hole extends out of the intermediate part from the operation hole.

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