Artificial ligament fixing equipment

Abstract

The utility model discloses an artificial ligament fixing device, and belongs to the technical field of foot bone treatment. The device mainly comprises an ankle and an interface screw, a metatarsal bone is connected to the front end of a cuneiform bone, a wedge extension joint is fixedly installed at the joint of the cuneiform bone and the metatarsal bone, a fixing plate is arranged on the surfaces of the cuneiform bone and the metatarsal bone, the front end of the fixing plate is matched with the cuneiform bone in shape, and the rear end of the fixing plate is matched with the metatarsal bone. A fixing hole is formed in the surface of the fixing plate, a threaded groove is formed in the inner side of the fixing hole, a threaded protruding block is fixedly installed on the outer side of the interface screw, a cuneiform bone hole is formed in the surface of the cuneiform bone, an artificial ligament is arranged on the surface of the cuneiform bone hole, and protective pads are arranged on the outer surface of the cuneiform bone and the outer surface of the metatarsal bone. Velcro is fixedly installed at the surface connecting position of the protective pad, and sponge protective cloth is fixedly installed on the inner surface of the protective pad. The artificial ligament fixing equipment is good in fixing effect, and a patient is more practical and comfortable during treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of foot bone treatment, and more specifically, it relates to an artificial ligament fixation device. Background Art

[0002] The metatarsophalangeal joint, namely the Lisfrance joint, is the joint between the forefoot and the midfoot, that is, the joint formed by the bases of the first, second, and third metatarsal bones and the corresponding cuneiform bones, and the joint formed by the bases of the fourth and fifth metatarsal bones and the cuboid bone. Among them, the joint between the metatarsal bone and the cuneiform bone is the metatarsocuneiform joint. The metatarsophalangeal joint belongs to a plane joint and can perform slight sliding, flexion, and extension movements. The metatarsophalangeal joint participates in the formation of the medial longitudinal arch of the foot (the first metatarsal bone and the medial cuneiform bone), the lateral longitudinal arch (the fifth metatarsal bone and the cuboid bone), and the intermediate transverse arch (the medial, middle, and lateral cuneiform bones and the cuboid bone), and plays an important role in maintaining the normal shape of the foot.

[0003] Injuries to the metatarsophalangeal joint include sprains, subluxations, fracture dislocations, etc., which can cause local functional disorders, pain, and swelling. In the later stage, it will also lead to changes in foot mechanics and traumatic arthritis. Therefore, injuries to the metatarsophalangeal joint should be treated early by reduction and fixation. Generally, the treatment only corrects through an artificial ligament and then directly bandages without fixation. When the patient twists during correction, secondary trauma is likely to occur.

[0004] Therefore, it is necessary to provide an artificial ligament fixation device to solve the above problems. Summary of the Utility Model

[0005] Based on the above problems existing in the prior art, the purpose of the embodiments of the present application is to provide an artificial ligament fixation device with good fixation effect, which is more practical and comfortable for patients during treatment.

[0006] The technical solution adopted by the present application to solve its technical problems is: an artificial ligament fixation device, including an ankle and an interfacial screw. The front end of the ankle is connected to a cuneiform bone, the front end of the cuneiform bone is connected to a metatarsal bone, a cuneometatarsal joint is fixedly installed at the connection between the cuneiform bone and the metatarsal bone, and fixing plates are arranged on the surfaces of the cuneiform bone and the metatarsal bone.

[0007] Further, the front end of the fixing plate conforms to the shape of the cuneiform bone, and the rear end of the fixing plate conforms to the metatarsal bone.

[0008] Further, fixing holes are formed on the surface of the fixing plate, threaded grooves are formed inside the fixing holes, threaded bumps are fixedly installed on the outer side of the interfacial screw, and the threaded bumps are in threaded connection with the threaded grooves.

[0009] Further, adjusting holes are formed at the side ends of the fixing holes.

[0010] Further, a cuneiform bone hole is formed on the surface of the cuneiform bone, and an artificial ligament is arranged on the surface of the cuneiform bone hole. The artificial ligament penetrates through two cuneiform bone holes.

[0011] Further, a fixing block is fixedly installed at the top end of the interfacial screw.

[0012] Further, a protective pad is arranged on the outer surfaces of the cuneiform bone and the metatarsal bone. A magic tape is fixedly installed at the surface connection part of the protective pad, and a sponge protective cloth is fixedly installed on the inner surface of the protective pad.

[0013] The beneficial effect of the utility model is that the interfacial screw is inserted into the fixing hole, and the fixing block is used to rotate the interfacial screw. At this time, the thread bumps on the surface of the interfacial screw will be threadedly connected with the thread grooves on the inner side of the fixing hole and turn into the cuneiform bone hole to fix the artificial ligament on the cuneiform bone, so as to correct the position of the cuneiform bone and the metatarsal bone with varus, and the fixing effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The attached drawings forming a part of this specification are used to provide a further understanding of the utility model. The schematic embodiments and descriptions thereof of the utility model are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0015] Figure 1 is an overall schematic diagram of an artificial ligament fixing device in this application;

[0016] Figure 2 is Figure 1 the structural schematic diagram of the interfacial screw in;

[0017] Figure 3 is Figure 1 the structural schematic diagram of the protective pad in;

[0018] In the figure: 1. ankle; 2. cuneiform bone; 3. metatarsal bone; 4. fixing plate; 5. fixing hole; 6. artificial ligament; 7. protective pad; 8. interfacial screw; 9. thread bump; 10. fixing block; 11. adjusting hole; 12. magic tape; 13. sponge protective cloth; 14. cuneometatarsal joint. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine the embodiments to detail the present novel.

[0020] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0021] In this new type, unless otherwise stated, the directions such as "upper" and "lower" usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravitational directions; similarly, for the sake of easy understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the contours of the respective components, but the above direction terms are not used to limit this new type.

[0022] As Figures 1-3 shown, the present application provides an artificial ligament fixation device, including an ankle 1 and an interfacial screw 8. The front end of the ankle 1 is connected to a cuneiform bone 2, the front end of the cuneiform bone 2 is connected to a metatarsal bone 3, a cuneonavicular joint 14 is fixedly installed at the connection between the cuneiform bone 2 and the metatarsal bone 3, and a fixing plate 4 is arranged on the surfaces of the cuneiform bone 2 and the metatarsal bone 3.

[0023] The front end of the fixing plate 4 conforms to the shape of the cuneiform bone 2, and the rear end of the fixing plate 4 conforms to the metatarsal bone 3.

[0024] Fixing holes 5 are formed on the surface of the fixing plate 4, threaded grooves are formed inside the fixing holes 5, threaded bumps 9 are fixedly installed on the outer side of the interfacial screw 8, and the threaded bumps 9 are in threaded connection with the threaded grooves.

[0025] Adjusting holes 11 are formed at the side ends of the fixing holes 5. By forming the adjusting holes 11 on the surface of the fixing plate 4, when the sizes of the injured areas of patients are different, we can change the fixing positions of the interfacial screws 8 according to the adjusting holes 11, so that during the correction process, it can be more accurate and convenient.

[0026] Cuneiform holes are formed on the surface of the cuneiform bone 2, and an artificial ligament 6 is arranged on the surface of the cuneiform holes. The artificial ligament 6 penetrates through the two cuneiform holes.

[0027] A fixing block 10 is fixedly installed at the top end of the interfacial screw 8.

[0028] Protective pads 7 are arranged on the outer surfaces of the cuneiform bone 2 and the metatarsal bone 3. Magic tapes 12 are fixedly installed at the surface joints of the protective pads 7, and sponge protective cloths 13 are fixedly installed on the inner surfaces of the protective pads 7. By fixedly installing the sponge protective cloths 13 on the inner sides of the protective pads 7, patients will not feel uncomfortable during long-term wearing.

[0029] Specifically, the medical staff first pass the artificial ligament 6 through the cuneiform bone holes on the surface of the cuneiform bone 2 once, then fold it back to the metatarsal bone 3, and then pass it through the fixing holes 5 on the surface of the fixing plate 4 to fix the fixing plate 4 to the cuneiform bone 2 and the metatarsal bone 2. Since the shape of the fixing plate 4 is fitted to the cuneiform bone 2 and the metatarsal bone 3, the fixing plate 4 does not need to be bent. The medical staff will also customize the fixing plate 4 according to the patient's foot shape. After the installation of the fixing plate 4 is completed, the medical staff insert the interface screw 8 into the fixing hole 5 and use the fixing block 10 to rotate the interface screw 8. At this time, the thread bumps 9 on the surface of the interface screw 8 will be threadedly connected with the thread grooves on the inner side of the fixing hole 5 and turn into the cuneiform bone hole to fix the artificial ligament 6 on the cuneiform bone 2, so as to correct the position of the inversion of the cuneiform bone 2 and the metatarsal bone 3, and the fixing effect is good.

[0030] After the artificial ligament 6 and the fixing plate 4 are fixed, the medical staff place the protective pad 7 on the instep and adjust the size through the magic tape 12 to adjust it to the most comfortable state for the patient, so as to protect the injured position of the patient from being affected by the outside world.

[0031] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0035] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. An artificial ligament fixation device, characterized in that: It comprises an ankle (1) and an interface screw (8), wherein the front end of the ankle (1) is connected to a cuneiform bone (2), the front end of the cuneiform bone (2) is connected to a metatarsal bone (3), a cuneiform joint (14) is fixedly installed at the connection between the cuneiform bone (2) and the metatarsal bone (3), and a fixing plate (4) is arranged on the surface of the cuneiform bone (2) and the metatarsal bone (3); The front end of the fixing plate (4) matches the shape of the cuneiform bone (2), and the rear end of the fixing plate (4) matches the metatarsal bone (3); A fixing hole (5) is provided on the surface of the fixing plate (4), a thread groove is provided on the inner side of the fixing hole (5), a threaded protrusion (9) is fixedly mounted on the outer side of the interface screw (8), and the threaded protrusion (9) is threadedly connected to the thread groove; An adjustment hole (11) is provided at a side end of the fixing hole (5); The surface of the cuneiform bone (2) is provided with cuneiform holes, the surface of the cuneiform holes is provided with artificial ligaments (6), and the artificial ligaments (6) penetrate through the two cuneiform holes; A fixing block (10) is fixedly mounted on the top end of the interface screw (8); The outer surfaces of the cuneiform bone (2) and the metatarsal bone (3) are provided with protective pads (7), a Velcro (12) is fixedly installed at the surface connection of the protective pad (7), and a sponge protective cloth (13) is fixedly installed on the inner surface of the protective pad (7).

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