Tibia periosteum distractor

Abstract

The utility model discloses a tibia periosteum distraction device, and belongs to the technical field of periosteum distraction. Comprising a supporting plate; the bandages are fixedly mounted on the two sides of the supporting plate; the first stud is fixedly mounted at the end part of one side of the supporting plate; the second stud is fixedly installed at the other end, located on the same side of the first stud, of the supporting plate. The mounting plate is movably connected to the first stud and the second stud in a sleeving manner; the adjusting mechanism is mounted between the mounting plate and the first stud and between the mounting plate and the second stud; the stretching mechanism is mounted on the mounting plate, the supporting plate is attached to the bottom of the shank and fixed to skin incisions of the leg and the tibia through the bandage, then the stretching mechanism makes contact with the tibia and the periosteum, and the height and the inclination angle of the mounting plate are adjusted through the adjusting mechanism, so that the stretching mechanism is stable; the tension when the distance between the periosteum and the tibia is adjusted by the distraction mechanism is provided by the mounting plate, the first stud and the second stud, so that the pain caused by secondary stress on the tibia is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of periosteal stretching, and more specifically, to a tibial periosteal stretcher. Background Art

[0002] Lower limb arteriosclerosis obliterans is the local manifestation of systemic atherosclerosis in the limbs. It is a disease in which the intima and middle layer of systemic arteries show degenerative and proliferative changes, resulting in thickening, stiffness, tortuosity and loss of elasticity of the arterial wall, secondary thrombosis, stenosis of the arterial lumen, and even blockage, causing corresponding ischemic symptoms in the limbs. Currently, tibial periosteum stretching is often used to continuously and slowly stretch the periosteum of the lower limbs, so that the bones and their attached muscles, fascia, blood vessels, and nerves grow synchronously, promote the regeneration of the extremity vascular network, and improve peripheral blood supply.

[0003] The document with prior art publication number CN213129824U provides a periosteum and soft tissue stretcher, which includes a periosteum and soft tissue support plate and a lifting device. The periosteum and soft tissue support plate is provided with at least one threaded hole and a lifting device. The lifting device includes a bone needle and a rotating sleeve. The rotating sleeve is sleeved on the bone needle and one end of the rotating sleeve is provided with an external thread. The external thread cooperates with the threaded hole. When the rotating sleeve is rotated, the periosteum and soft tissue support plate can move along the axial direction of the bone needle. The periosteum and soft tissue support plate is used to support the periosteum.

[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, the rotating sleeve rotates so that the thread drives the support plate to move, increasing the distance between the periosteum and the bone. The rotation of the rotating sleeve and the reverse force for providing movement of the support plate are both provided by the bone screws. When the rotating sleeve rotates and drives the support plate to move, the bone pins will apply rotational and compressive reverse forces to the bones, which will further increase the pain.

[0005] In view of this, we proposed a tibial periosteal distractor. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] The purpose of the present application is to provide a tibial periosteal distractor, which solves the technical problem that the rotating sleeve in the above-mentioned background technology rotates so that the thread drives the support plate to move, thereby increasing the distance between the periosteum and the bone. The rotation of the rotating sleeve and the reverse force for the movement of the support plate are both provided by bone screws. When the rotating sleeve rotates and drives the support plate to move, the bone screws will apply a reverse force of rotation and compression to the bone, which will further increase the pain, thereby achieving a technical effect.

[0008] 2. Technical solution

[0009] The technical solution of the present application provides a tibial periosteal distractor, comprising:

[0010] Pallet;

[0011] Binding straps are fixedly installed on both sides of the support plate;

[0012] A first stud, the first stud is fixedly mounted on one end of the support plate;

[0013] A second stud fixedly mounted on the other end of the support plate on the same side as the first stud;

[0014] A mounting plate, the mounting plate being movably sleeved on the first stud and the second stud;

[0015] An adjustment mechanism is installed between the mounting plate and the first stud and the second stud;

[0016] A tensioning mechanism is installed on the mounting plate, the inner wall of the middle part of the support plate is an arc-shaped structure, the bottom of the support plate is a flat structure, and matching Velcro is installed between the straps on both sides of the support plate.

[0017] Through the above scheme, the support plate fits the bottom of the calf and is fixed to the leg by a strap. A skin incision is made at the tibia, and then the distraction mechanism contacts the tibia and periosteum. The height and inclination of the mounting plate are adjusted by the adjustment mechanism to ensure the stability of the distraction mechanism. The tension when the distraction mechanism adjusts the distance between the periosteum and the tibia is provided by the mounting plate, the first stud and the second stud, thereby avoiding the pain caused by the increased secondary force on the tibia.

[0018] Optionally, the mounting plate includes an adjustment plate and a T-shaped plate, both ends of the adjustment plate are connected to the adjustment mechanism, the T-shaped plate is mounted on the adjustment plate by bolts, and the tensioning mechanism is mounted on the T-shaped plate.

[0019] Through the above solution, the T-shaped plate is threadedly installed on the adjustment plate, so that the tensioning mechanism can be installed with the legs first, and then the T-shaped plate can be connected to the adjustment plate after the angle is adjusted.

[0020] Optionally, the adjustment mechanism includes a ball groove, a ball groove is opened at one end of the adjustment plate, a ball head is rotatably clamped in the ball groove, a nut sleeve is fixedly sleeved on the top of the ball head, the inner walls of the nut sleeve and the ball head are threadedly matched with the first stud, and a large through hole is opened at the other end of the adjustment plate, the second stud passes through the large through hole, and two locking nuts are threadedly installed on the second stud, and the two locking nuts respectively fit the outer walls of the adjustment plate at the top and bottom of the large through hole.

[0021] Through the above scheme, the two locking nuts are moved away from the adjustment plate, and the nut sleeve is rotated to change the height of the ball head. Then the adjustment plate is rotated along the ball head through the ball groove to adjust the angle of the adjustment plate. Then the locking nuts are tightened to fit the adjustment plate to achieve the locking purpose.

[0022] Optionally, the tensioning mechanism includes a hollow bolt, which rotates and passes through the T-plate. A limiting ring is fixedly installed on the outer wall of the hollow bolt, and the limiting ring is rotatably clamped in the T-plate. The bottom outer wall of the hollow bolt is sleeved with a tensioning plate through a threaded structure, and a bone screw is sleeved in the inner gap of the hollow bolt.

[0023] Through the above scheme, the bone screw is inserted into the tibia to play a guiding role, the distraction plate is located under the periosteum, the hollow bolt is guided by the bone screw and threadedly connected to the distraction plate, the hollow bolt is rotatably clamped with the T-plate through the limit ring, so when the hollow bolt is rotated to drive the distraction plate to move, the reaction force is applied to the T-plate, and the bone screw only plays a guiding and positioning role, which is convenient for the angle and height adjustment of the adjusting plate when the T-plate is connected to the adjusting plate after the distraction mechanism is installed.

[0024] 3. Beneficial effects

[0025] One or more technical solutions provided in the technical solution of this application have at least the following technical effects or advantages:

[0026] 1. The present application uses a hollow bolt to rotate and clamp with the T-shaped plate through a limit ring, so that when the hollow bolt is rotated to drive the distraction plate to move, the reaction force is applied to the T-shaped plate and finally to the support plate. The bone screw only plays a guiding and positioning role to avoid the pain caused by the reaction force acting on the bone;

[0027] 2. Move the two locking nuts away from the adjustment plate, rotate the nut sleeve to change the height of the ball head, then rotate the adjustment plate along the ball head through the ball groove, adjust the angle of the adjustment plate, and then tighten the locking nuts to fit the adjustment plate to achieve the purpose of locking, so that the adjustment plate fits the T-plate, and then fix the T-plate to the adjustment plate with bolts, so that the distraction mechanism can fit the bone shape of different patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of a tibial periosteal distractor disclosed in a preferred embodiment of the present application;

[0029] Figure 2 A schematic diagram of a partial cross-sectional structure of a tibial periosteal distractor disclosed in a preferred embodiment of the present application;

[0030] Figure 3 A preferred embodiment of the present application is disclosed Figure 2 The enlarged structural diagram at A in the middle;

[0031] Figure 4 A preferred embodiment of the present application is disclosed Figure 2 The enlarged structural diagram at B in the middle;

[0032] Explanation of the numbers in the figure: 1. Support plate; 2. Binding strap; 3. First stud; 4. Second stud; 5. Mounting plate; 51. Adjustment plate; 52. T-plate; 6. Adjustment mechanism; 61. Ball groove; 62. Ball head; 63. Nut sleeve; 64. Large through hole; 65. Locking nut; 7. Distraction mechanism; 71. Hollow bolt; 72. Limiting ring; 73. Distraction plate; 74. Bone screw DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the accompanying drawings.

[0034] Reference Figure 1 and Figure 2 The embodiment of the present application provides a tibial periosteal distractor, comprising: a support plate 1; a strap 2, wherein the strap 2 is fixedly installed on both sides of the support plate 1; a first stud 3, wherein the first stud 3 is fixedly installed on one end of the support plate 1; a second stud 4, wherein the second stud 4 is fixedly installed on the other end of the support plate 1 on the same side as the first stud 3; a mounting plate 5, wherein the mounting plate 5 is movably sleeved on the first stud 3 and the second stud 4; an adjusting mechanism 6, wherein the adjusting mechanism 6 is installed between the mounting plate 5 and the first stud 3 and the second stud 4; a distraction mechanism 7, wherein the distraction mechanism 7 is installed on the mounting plate 5, the support plate 1 fits the bottom of the calf and is fixed to the leg by the strap 2, a skin incision is made at the tibia, and then the distraction mechanism 7 contacts the tibia and periosteum, the height and inclination of the mounting plate 5 are adjusted by the adjusting mechanism 6, so as to meet the stability of the distraction mechanism 7, and the tension when the distraction mechanism 7 adjusts the distance between the periosteum and the tibia is provided by the mounting plate 5, the first stud 3 and the second stud 4, so as to avoid the pain caused by the increased secondary force on the tibia.

[0035] Reference Figure 1 and Figure 2 The inner wall of the middle part of the support plate 1 is an arc-shaped structure, the bottom of the support plate 1 is a flat structure, and matching Velcro is installed between the straps 2 on both sides of the support plate 1, so that the arc-shaped structure fits the legs better.

[0036] Reference Figure 1 and Figure 2 The mounting plate 5 includes an adjusting plate 51 and a T-shaped plate 52. Both ends of the adjusting plate 51 are connected to the adjusting mechanism 6. The T-shaped plate 52 is installed on the adjusting plate 51 by bolts. The tensioning mechanism 7 is installed on the T-shaped plate 52. The T-shaped plate 52 is threadedly installed on the adjusting plate 51, so that the T-shaped plate 52 can be connected to the adjusting plate 51 after the tensioning mechanism 7 is installed with the leg first, and then the angle is adjusted.

[0037] Furthermore, a plurality of T-shaped plates 52 can be provided, and a plurality of stretching mechanisms 7 can be provided simultaneously, so that the periosteum at multiple locations can be stretched synchronously.

[0038] Reference Figure 2 and Figure 3 The adjusting mechanism 6 includes a ball groove 61. A ball groove 61 is opened at one end of the adjusting plate 51. A ball head 62 is rotatably clamped in the ball groove 61. A nut sleeve 63 is fixedly sleeved on the top of the ball head 62. The inner walls of the nut sleeve 63 and the ball head 62 are threadedly matched with the first stud 3. A large through hole 64 is opened at the other end of the adjusting plate 51. The second stud 4 passes through the large through hole 64. Two locking nuts 65 are threadedly installed on the second stud 4. The two locking nuts 65 are respectively fitted with the outer walls of the adjusting plate 51 at the top and bottom of the large through hole 64. First, the two locking nuts 65 are moved away from the adjusting plate 51, and the nut sleeve 63 is rotated to change the height of the ball head 62. Then, the adjusting plate 51 rotates along the ball head 62 through the ball groove 61 to adjust the angle of the adjusting plate 51, and then the locking nuts 65 are tightened to fit the adjusting plate 51 to achieve the purpose of locking.

[0039] Reference Figure 2 and Figure 4 The distraction mechanism 7 includes a hollow bolt 71, which rotates and penetrates the T-plate 52. A limiting ring 72 is fixedly installed on the outer wall of the hollow bolt 71, and the limiting ring 72 is rotatably clamped in the T-plate 52. The bottom outer wall of the hollow bolt 71 is sleeved with a distraction plate 73 through a threaded structure. A bone screw 74 is sleeved in the gap of the hollow bolt 71. The bone screw 74 is inserted into the tibia to play a guiding role. The distraction plate 73 is located under the periosteum. The hollow bolt 71 is guided and threadedly connected to the distraction plate 73 by the bone screw 74. The hollow bolt 71 is rotatably clamped with the T-plate 52 through the limiting ring 72. Therefore, when the hollow bolt 71 is rotated to drive the distraction plate 73 to move, a reaction force is applied to the T-plate 52. The bone screw 74 only plays a guiding and positioning role, which is convenient for the adjustment plate 51 to adjust the angle and height when the T-plate 52 is connected to the adjustment plate 51 after the distraction mechanism 7 is installed.

[0040] Working principle: the support plate 1 fits the bottom of the calf and is fixed to the leg by the strap 2. The bone screw 74 is inserted into the tibia to play a guiding role. The distraction plate 73 is located under the periosteum. The hollow bolt 71 is guided by the bone screw 74 and threadedly connected to the distraction plate 73. At this time, the T-plate 52 is at different heights and angles according to the shape of the tibia of different patients. The two locking nuts 65 are moved away from the adjustment plate 51, and the nut sleeve 63 is rotated to change the height of the ball head 62. Then the adjustment plate 51 is rotated along the ball head 62 through the ball groove 61 to adjust the adjustment plate. 51, and then tighten the locking nut 65 to fit the adjusting plate 51 to achieve the purpose of locking, so that the adjusting plate 51 fits the T-plate 52, and then the T-plate 52 is fixed to the adjusting plate 51 by bolts, and the hollow bolt 71 is rotatably engaged with the T-plate 52 through the limit ring 72, so that when the hollow bolt 71 is rotated to drive the distraction plate 73 to move, the reaction force is applied to the T-plate 52, and finally to the support plate 1, and the bone screw 74 only plays a guiding and positioning role to avoid the pain caused by the reaction force acting on the bone.

Claims

1. A tibial periosteal distractor, characterized in that: Include: Pallet; Binding straps are fixedly installed on both sides of the support plate; A first stud, the first stud being fixedly mounted on one end of the support plate; A second stud fixedly mounted on the other end of the support plate on the same side as the first stud; A mounting plate, the mounting plate being movably sleeved on the first stud and the second stud, the mounting plate comprising an adjustment plate and a T-shaped plate, both ends of the adjustment plate being connected to an adjustment mechanism, and the T-shaped plate being mounted on the adjustment plate by bolts; An adjustment mechanism is installed between the mounting plate and the first stud and the second stud, the adjustment mechanism includes a ball groove, one end of the adjustment plate is provided with a ball groove, a ball head is rotatably clamped in the ball groove, a nut sleeve is fixedly sleeved on the top of the ball head, the inner walls of the nut sleeve and the ball head are threadedly matched with the first stud, the other end of the adjustment plate is provided with a large through hole, the second stud passes through the large through hole, two locking nuts are threadedly installed on the second stud, and the two locking nuts are respectively fitted with the outer walls of the adjustment plate at the top and bottom of the large through hole; A distraction mechanism is installed on the mounting plate, and the distraction mechanism includes a hollow bolt, and the hollow bolt rotates and passes through the T-plate. A limiting ring is fixedly installed on the outer wall of the hollow bolt, and the limiting ring is rotatably clamped in the T-plate. The bottom outer wall of the hollow bolt is sleeved with a distraction plate through a threaded structure, and a bone screw is sleeved in the gap inside the hollow bolt.

2. The tibial periosteal distractor according to claim 1, characterized in that: The inner wall of the middle part of the support plate is an arc-shaped structure, the bottom of the support plate is a plane structure, and matching Velcro strips are installed between the straps on both sides of the support plate.

Images