Portable calcaneus distraction fixator

Abstract

The invention relates to a portable calcaneus distraction fixator which comprises a foot bottom plate and a protection pad, foot side plates are arranged on the left side and the right side of the foot bottom plate, a binding belt is arranged between the foot side plates on the two sides, a fastening assembly is arranged on the foot side plate on the right side, an adjusting assembly is arranged in the foot bottom plate, and the adjusting assembly is connected with the foot bottom plate. And air holes are formed in the top of the foot bottom plate. The tightness of the fixator can be adjusted at any time according to the foot size of a patient, the fastening assembly is arranged at each binding position to adjust the tightness of the binding belt, the tightness can be independently adjusted, and compared with a mode of fixing only through the tightness, the fixator can be fixed more firmly and is not prone to falling off; the fixing size can be adjusted according to the foot size of a patient, the distance between the foot bottom plate and the foot side plate can be adjusted in a rotating mode, the adjusting mode is simple and rapid, a user can freely select the adjusting position, free adjustment can be achieved according to the foot size of the user, and wearing is more comfortable.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a portable calcaneal distraction fixer. Background Art

[0002] The calcaneus is the largest of the seven tarsal bones, located at the lower back of the foot. There are four articular surfaces on the top and front of the bone, of which three are the anterior, middle and posterior talar articular surfaces, which correspond to the anterior, middle and posterior talar articular surfaces on the bottom of the talus to form the anterior, middle and posterior talocrural joints. Among them, the anterior talocrural joint usually communicates with the adjacent talonavicular joint and is functionally considered as a whole, called the talocrural joint.

[0003] After calcaneal surgery or injury, a foot fixator is required to assist recovery and increase the healing speed. For example, Chinese patent 202420306245.6 proposes an orthopedic reduction and fixation orthosis, which improves the foot frame so that the patient can automatically blow air and dissipate heat on the sole of the foot when walking and exercising, thereby reducing sweating and ensuring the patient's comfort.

[0004] The calcaneal distraction fixators currently on the market still have simple structures, and are tied in the form of elastic bands, which have poor fastening properties and are not convenient for adjustment at any time. In addition, the size is fixed and cannot be adjusted at any time according to the patient's needs. Therefore, a portable calcaneal distraction fixator is proposed to solve the above problems. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a portable calcaneal distraction fixator, which has the advantages of size and tightness being adjustable at any time and a simple structure and easy to carry. It solves the problems of the calcaneal distraction fixator currently on the market, such as simple structure, elastic band binding, poor fastening, and inconvenient adjustment at any time, and fixed size, which cannot be adjusted at any time according to patient needs.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a portable calcaneal distraction fixator, comprising a sole plate and a pad, wherein the left and right sides of the sole plate are provided with foot side plates, a binding belt is provided between the foot side plates on both sides, a fastening component is provided on the right foot side plate, an adjustment component is provided inside the sole plate, and a ventilation hole is provided on the top of the sole plate; The fastening assembly includes a plurality of installation cavities opened inside the right foot side plate, a connecting tube is fixedly installed on the left side wall of the installation cavity, a folding rod is inserted inside the connecting tube, a screw is fixedly installed on the right end of the folding rod, an internal thread groove is opened on the right side wall of the installation cavity, a driven wheel is sleeved on the outer surface of the folding rod, a clamping plate is arranged on the right side of the outer surface of the folding rod, a driving wheel is rotatably installed inside the installation cavity, a curved bevel gear is fixedly installed on the outer surface of the driven wheel, a clamping hole is opened inside the driven wheel, a connecting rod is fixedly installed on the front side of the driving wheel, and a rotating disk is fixedly installed on the front side of the connecting rod; The adjustment assembly includes a plurality of slots on the left and right sides of the sole plate, a plurality of insert cylinders located on the opposite sides of the foot side plates on both sides, and a plurality of rotating rods rotatably installed on the top of the sole plate, the top and bottom of the insert cylinders are fixedly installed with limit blocks, the top and bottom of the insert cylinders are opened, a support rod is rotatably installed on the side wall of the slot, a limit cylinder is fixedly installed on the end of the support rod, a bevel gear A is fixedly installed on the outer surface of the support rod, a bevel gear B is fixedly installed on the bottom end of the rotating rod, limit pins are provided on the top and bottom of the limit cylinder, and placement grooves are opened on the front and back of the limit cylinder.

[0007] Furthermore, the size of the pad matches the size of the sole plate, the ventilation holes are arranged on the top front side of the sole plate, and the number of the adjustment components is not less than fifteen and they are arranged at equal distances.

[0008] Furthermore, three binding straps are provided, and the right end of the binding strap is inserted into the interior of the installation cavity and fixedly connected to the folding rod, and the left end of the binding strap is fixedly connected to the left foot side panel.

[0009] Furthermore, the screw rod is threadedly connected to the inside of the internal thread groove, the driven wheel is clamped to the outer surface of the retracting rod through a clamping plate, and grooves adapted to the clamping plate are provided on the left and right sides of the clamping hole.

[0010] Furthermore, the driving wheel is meshed with the side surface of the curved bevel gear, and the two are perpendicular to each other, and the connecting rod extends to the outside of the foot side plate.

[0011] Furthermore, the insert tube is inserted into the interior of the slot, the limit blocks are arranged at equal distances, the opening is opened between two adjacent limit blocks, and the width of the opening is greater than the width of the limit pin.

[0012] Furthermore, the limiting cylinder is rotatably mounted inside the inserting cylinder, and the limiting pin is clamped between two adjacent limiting blocks.

[0013] Furthermore, the bevel gear B is located above the support rod, and the bevel gear B and the bevel gear A are meshed with each other.

[0014] Furthermore, the inner wall of the placement groove is an inclined surface, and the width of the placement groove is greater than the width of the limit pin. The placement groove and the limit pin are at the same level on the limit cylinder. The number of the slots, insertion cylinders and rotating rods is no less than thirty and the number is the same.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. The present invention can adjust the tightness of the fixator at any time according to the size of the patient's foot. A fastening component is provided at each binding location to adjust the tightness of the binding belt. The tightness can be adjusted individually. Compared with the method of only fixing the tightness, the fixator can be fixed more firmly and is not easy to fall off.

[0016] 2. The present invention can adjust the fixed size according to the patient's foot size, and the distance between the sole plate and the side plate of the foot can be adjusted by rotation. The adjustment method is simple and quick. The user can freely choose the adjustment position and can freely adjust it according to the size of his own foot, making it more comfortable to wear.

[0017] 3. The present invention has a simple structure, and the adjustment means are all embedded in the interior of the fixator. The pad and the fixator body can be separated, making it more convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention; Figure 3 It is a schematic diagram of the structure of the present invention; Figure 4 It is a schematic diagram of the structure of the present invention; Figure 5 It is a schematic diagram of the structure of the present invention; Figure 6 It is a schematic diagram of the structure of the present invention.

[0019] In the figure: 1. sole plate; 2. pad; 3. side plate; 4. binding belt; 5. fastening assembly; 501. installation cavity; 502. connecting tube; 503. retracting rod; 504. screw rod; 505. internal thread groove; 506. driven wheel; 507. clamping plate; 508. driving wheel; 509. curved bevel gear; 510. clamping hole; 511. connecting rod; 512. turntable; 6. adjustment assembly; 601. slot; 602. insert tube; 603. rotating rod; 604. limit block; 605. opening; 606. support rod; 607. limit tube; 608. bevel gear A; 609. bevel gear B; 610. limit pin; 611. placement groove; 7. ventilation hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-6 A portable calcaneal distraction fixator in this embodiment includes a sole plate 1 and a pad 2, a foot side plate 3 is provided on both sides of the sole plate 1, a binding belt 4 is provided between the foot side plates 3 on both sides, a fastening component 5 is provided on the right foot side plate 3, an adjustment component 6 is provided inside the sole plate 1, and a ventilation hole 7 is provided on the top of the sole plate 1; The fastening assembly 5 includes a plurality of installation cavities 501 opened inside the right foot side plate 3, a connecting tube 502 is fixedly installed on the left side wall of the installation cavity 501, a folding rod 503 is inserted inside the connecting tube 502, a screw 504 is fixedly installed on the right end of the folding rod 503, an internal thread groove 505 is opened on the right side wall of the installation cavity 501, a driven wheel 506 is sleeved on the outer surface of the folding rod 503, a clamping plate 507 is arranged on the right side of the outer surface of the folding rod 503, a driving wheel 508 is rotatably installed inside the installation cavity 501, a curved bevel gear 509 is fixedly installed on the outer surface of the driven wheel 506, a clamping hole 510 is opened inside the driven wheel 506, a connecting rod 511 is fixedly installed on the front of the driving wheel 508, and a rotating disk 512 is fixedly installed on the front of the connecting rod 511; The adjustment component 6 includes a plurality of slots 601 opened on the left and right sides of the sole plate 1, a plurality of insert tubes 602 located on the opposite side of the foot side plates 3 on both sides, and a plurality of rotating rods 603 rotatably installed on the top of the sole plate 1, the top and bottom of the insert tubes 602 are fixedly installed with limit blocks 604, the top and bottom of the insert tubes 602 are opened with openings 605, the side wall of the slots 601 is rotatably installed with a support rod 606, the end of the support rod 606 is fixedly installed with a limit tube 607, the outer surface of the support rod 606 is fixedly installed with a bevel gear A608, the bottom end of the rotating rod 603 is fixedly installed with a bevel gear B609, the top and bottom of the limit tube 607 are provided with limit pins 610, and the front and back sides of the limit tube 607 are opened with placement grooves 611.

[0022] Please refer to Figure 1 The pad 2 will be placed inside the sole plate 1 to protect the patient's foot and increase comfort. The design of the air holes 7 prevents the bottom of the fixator from being too sealed and breeding bacteria.

[0023] Please refer to Figure 2 and Figure 3The strap 4 is provided with three parts, which are located at the top of the foot, the ankle and the leg. By fixing these three positions, the fixator can be tightly bound to the patient's foot. The strap 4 enters the interior of the installation cavity 501 and is fixed to the retracting rod 503. After the retracting rod 503 is rotated, the strap 4 will be rotated and retracted on its outer surface.

[0024] Specifically, the screw rod 504 and the internal thread groove 505 are threadedly connected to fix the folding rod 503. The folding rod 503 rotates to enter the internal thread groove 505 for threaded fixation. The driven wheel 506 is clamped on the outer surface of the folding rod 503, and the clamping plate 507 is used to form a cross clamping method, so that it can slide on the outer surface of the folding rod 503 and drive the folding rod 503 to rotate. The driving wheel 508 will be driven to rotate by the curved bevel gear 509, and the curved bevel gear 509 is driven to rotate by the turntable 512.

[0025] When the tightness of the fixator needs to be adjusted, the turntable 512 is rotated to drive the curved bevel gear 509 to rotate, and the curved bevel gear 509 drives the driving wheel 508 to rotate. The driving wheel 508 will drive the folding rod 503 to rotate and move to the right due to the action of the internal thread groove 505, so as to fold the binding belt 4, so that the distance between the two foot side plates 3 is reduced, making the fixator tighter, and the screw 504 on the right side of the folding rod 503 is screwed into the inside of the internal thread groove 505 for fixation.

[0026] See also Figure 4 , Figure 5 and Figure 6 , the insert cylinder 602 is inserted into the interior of the slot 601, the limit blocks 604 are evenly distributed, the opening 605 is set between the two limit blocks 604, and is used for the movement of the limit pin 610, the limit cylinder 607 is located inside the insert cylinder 602, the bevel gear B609 is above the support rod 606, and the bevel gear B609 is meshed with the bevel gear A608, the inner wall of the placement groove 611 is an inclined surface, and the width of the placement groove 611 is greater than the width of the limit pin 610, the depth of the placement groove 611 is less than the thickness of the limit pin 610, the placement groove 611 and the limit pin 610 are at the same level on the limit cylinder 607, and the number of slots 601, insert cylinders 602 and rotating rods 603 is not less than thirty, and the number is the same.

[0027] Specifically, when changing the distance between the two foot side plates 3, the rotating rod 603 is rotated so that the rotating rod drives the bevel gear B609 to rotate, and drives the bevel gear A608 linked with it to rotate, and the bevel gear A608 will drive the support rod 606 to rotate, and the support rod 606 drives the limiting cylinder 607 to rotate, so that the position of the placement groove 611 moves to the two limiting pins 610. At this time, the limiting pin loses its supporting force and will fall into the placement groove 611, and the insertion cylinder 602 loses its limit and can move freely back and forth. After the position is determined, the rotating rod 603 is continued to be rotated so that the limiting cylinder 607 continues to rotate, and the two limiting pins 610 are squeezed out from the inside of the placement groove 611 and enter the inside of the opening 605. The rotating rod 603 is continuously rotated to push the two limiting pins 610 to between the two adjacent limiting blocks 604 for limiting.

[0028] In summary, the present invention can adjust the tightness of the fixator at any time according to the size of the patient's foot. A fastening component 5 is provided at each binding location to adjust the tightness of the binding belt 4. The tightness can be adjusted individually. Compared with the method of only fixing the tightness, the fixator can be fixed more firmly and not easy to fall off. The size of the fixation can be adjusted according to the size of the patient's foot. The distance between the sole plate 1 and the foot side plate 3 can be adjusted by rotation. The adjustment method is simple and quick. The user can freely choose the adjustment position and can freely adjust it according to the size of his own foot, making it more comfortable to wear. The structure is simple, and the adjustment results are embedded in the inside of the fixator. The pad 2 and the fixator body can be separated, which is more convenient to carry. It solves the problem that the calcaneal distraction fixator currently on the market still has a simple structure, the binding adopts the form of an elastic band, the tightness is poor, it is not convenient to adjust at any time, and the size is fixed, and the size cannot be adjusted at any time according to the patient's needs.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable calcaneal distraction fixator, comprising a sole plate (1) and a protective pad (2), characterized in that: The left and right sides of the sole plate (1) are both provided with foot side plates (3), a binding belt (4) is provided between the foot side plates (3) on both sides, a fastening component (5) is provided on the right foot side plate (3), an adjustment component (6) is provided inside the sole plate (1), and a ventilation hole (7) is provided on the top of the sole plate (1); The fastening assembly (5) comprises a plurality of installation cavities (501) provided inside the right foot side plate (3); a connecting tube (502) is fixedly provided on the left side wall of the installation cavity (501); a folding rod (503) is inserted into the interior of the connecting tube (502); a screw rod (504) is fixedly provided on the right end of the folding rod (503); an internal thread groove (505) is provided on the right side wall of the installation cavity (501); and a driven wheel (504) is sleeved on the outer surface of the folding rod (503). 06), a clamping plate (507) is provided on the right side of the outer surface of the folding rod (503), a driving wheel (508) is rotatably installed inside the installation cavity (501), a curved bevel gear (509) is fixedly installed on the outer surface of the driven wheel (506), a clamping hole (510) is opened inside the driven wheel (506), a connecting rod (511) is fixedly installed on the front side of the driving wheel (508), and a rotating disk (512) is fixedly installed on the front side of the connecting rod (511); The adjustment assembly (6) comprises a plurality of slots (601) provided on the left and right sides of the sole plate (1), a plurality of inserting tubes (602) located on the opposite sides of the foot side plates (3) on both sides, and a plurality of rotating rods (603) threadedly mounted on the top of the sole plate (1); a limiting block (604) is fixedly mounted on the top and bottom of the inserting tube (602); an opening (605) is provided on the top and bottom of the inserting tube (602); a support rod (606) is rotatably mounted on the side wall of the slot (601); a limiting tube (607) is fixedly mounted on the end of the support rod (606); a bevel gear A (608) is fixedly mounted on the outer surface of the support rod (606); a bevel gear B (609) is fixedly mounted on the bottom end of the rotating rod (603); a limiting pin (610) is provided on the top and bottom of the limiting tube (607); and a placement groove (611) is provided on the front and back of the limiting tube (607).

2. A portable calcaneal distraction fixator according to claim 1, characterized in that: The size of the protective pad (2) matches the size of the sole plate (1), the ventilation holes (7) are arranged on the top front side of the sole plate (1), and the number of the adjustment components (6) is not less than fifteen and they are arranged at equal distances.

3. The portable calcaneal distraction fixator according to claim 1, characterized in that: Three binding belts (4) are provided, and the right end of the binding belt (4) is inserted into the interior of the installation cavity (501) and fixedly connected to the retracting rod (503), and the left end of the binding belt (4) is fixedly connected to the left foot side plate (3).

4. The portable calcaneal distraction fixator according to claim 1, characterized in that: The screw rod (504) is threadedly connected to the interior of the internal thread groove (505), the driven wheel (506) is clamped to the outer surface of the retracting rod (503) via a clamping plate (507), and grooves matching the clamping plate (507) are provided on the left and right sides of the clamping hole (510).

5. The portable calcaneal distraction fixator according to claim 1, characterized in that: The driving wheel (508) is meshed with the side surface of the curved bevel gear (509), and the two are perpendicular to each other. The connecting rod (511) extends to the outside of the foot side plate (3).

6. The portable calcaneal distraction fixator according to claim 1, characterized in that: The insert tube (602) is inserted into the interior of the slot (601), the limit blocks (604) are arranged at equal distances, the opening (605) is opened between two adjacent limit blocks (604), and the width of the opening (605) is greater than the width of the limit pin (610).

7. The portable calcaneal distraction fixator according to claim 1, characterized in that: The limiting cylinder (607) is rotatably mounted inside the inserting cylinder (602), and the limiting pin (610) is clamped between two adjacent limiting blocks (604).

8. The portable calcaneal distraction fixator according to claim 1, characterized in that: The bevel gear B (609) is located above the support rod (606), and the bevel gear B (609) and the bevel gear A (608) are meshed with each other.

9. The portable calcaneal distraction fixator according to claim 1, characterized in that: The inner wall of the placement groove (611) is an inclined surface, and the width of the placement groove (611) is greater than the width of the limiting pin (610). The placement groove (611) and the limiting pin (610) are located at the same level on the limiting cylinder (607). The number of the slots (601), the inserting cylinders (602) and the rotating rods (603) is no less than thirty and the number is the same.

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