CN108175556B

CN108175556B - Ankle fracture auxiliary treatment device

Info

Publication number: CN108175556B
Application number: CN201711473354.8A
Authority: CN
Inventors: 姜磊
Original assignee: Affiliated Hospital of Shandong University of Traditional Chinese Medicine
Current assignee: Affiliated Hospital of Shandong University of Traditional Chinese Medicine
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2020-07-07
Anticipated expiration: 2037-12-29
Also published as: CN108175556A

Abstract

The invention discloses an ankle joint fracture auxiliary treatment device which comprises a shank fixing part, a foot fixing part, an L-shaped protection part, a shank fixing part and a foot fixing part. The auxiliary treatment device combines physical factor treatment with motion treatment, is convenient for an operator to carry out joint loosening operation treatment of passive movement such as pushing, traction and the like, can improve the recovery effect of the functional disorder of the ankle fracture patient, improves the life quality of the patient, can effectively prevent traumatic arthritis or degenerative arthritis, and has good fixing performance and fitting performance and strong practicability; the device is lightweight, helping to keep the site clean and prevent infection.

Description

Ankle fracture auxiliary treatment device

Technical Field

The invention belongs to the technical field of orthopedic medical instruments, and particularly relates to an auxiliary device for external fixation after ankle fracture and rehabilitation treatment of ankle fracture.

Background

The ankle joint is the main weight bearing joint of the human body, the weight of the whole body falls on the ankle joint when the human body stands, and the load value when the human body walks is about 5 times of the body mass. With the development of aging population and increasingly complicated urban traffic, the incidence of ankle joint fractures is increasing, and the first fractures in joints account for about 3.92% of total fractures of the whole body (xu Sha Ting, Ge Bao Feng, Xuyinkan. The surgical treatment method for ankle fracture comprises various internal fixation technologies, ankle replacement, ankle fusion technologies, ankle arthroscopy minimally invasive technologies and the like (Song Weidong, hotspot and progress of ankle surgery [ J ]. J. China Joint surgery J.2014, 8(4):413 + 414). After surgery, even when anatomical reduction is good, various degrees of ankle dysfunction can result, including: after intra-articular fracture surgery, peripheral soft tissue injury and intra-articular bleeding occur, and intra-articular adhesion and muscle fibrosis occur, so that the joint is stiff; the normal tissue structure is damaged in the operation process, and new adhesion is formed; after operation, the local tissue blood circulation is reduced, the tissue edema is not easy to subside, the contracture adhesion of joint capsule and ligament and related muscular atrophy are affected, the ankle joint movement function is affected, and the joint movement disorder is caused. The ankle joint is an important load bearing joint of the lower limb, the biomechanical anatomy and the injury mechanism are complex, any improper treatment method can cause serious influence on the joint function, and therefore, active and effective rehabilitation treatment after operation is an important means for improving the motion function of the ankle joint.

At present, rehabilitation treatment means after ankle joint fracture surgery include joint loosening surgery, physical factor treatment, active exercise training, continuous passive exercise, traditional rehabilitation treatment methods and the like. Wherein, if the joint loosening operation originally originated from 50 s in the 20 th century and Maitland and Kaltenborn developed in 70 s, it belongs to the technique treatment technology in the Western modern rehabilitation technology, and based on the joint kinematics, the joint loosening operation has great benefit when the joint malfunction is found in the examination, especially the low mobility occurs, through the treatment method of passive activities such as pushing, pulling, rotating and the like which are carried out by the action of the hands of the operator on the bone joints (Zhang Meilan. joint free-hand loosening operation [ M ]. Taiwan: the book publishing company 2010: 1); physical factor therapy is to apply physical factors (such as electricity, light, heat, cold, water, etc.) to act on human body to improve health level, prevent diseases, promote rehabilitation of injured body, and the common physical factor treatment techniques after ankle fracture surgery include electrotherapy, ultrasonic therapy, magnetic therapy, phototherapy, etc.; the traditional rehabilitation treatment methods commonly used include acupuncture therapy, traditional Chinese medicine fumigation therapy and the like.

The existing ankle joint rehabilitation therapy auxiliary apparatus mainly adopts a single motion mode (including active and passive) to perform rehabilitation therapy, for example, CN102961232A discloses an ankle joint movement trainer; CN203425085U discloses an adjustable ankle rehabilitation brace. Currently, there is no adjuvant therapy device suitable for two or more kinds of combination therapies.

Disclosure of Invention

In view of the problems in the prior art, an object of the present invention is to provide an auxiliary medical device for rehabilitation after ankle fracture surgery, which combines physical factor therapy with exercise therapy, and facilitates the joint loosening surgery therapy with passive activities such as pushing and pulling performed by an operator, thereby improving the recovery effect of ankle fracture patients on dysfunction, improving the quality of life of the patients, effectively preventing traumatic arthritis or degenerative arthritis, reducing the consumption of sanitary resources, and reducing the economic burden of the patients.

In order to achieve the above object, the present invention specifically relates to the following technical solutions:

the invention discloses an ankle joint fracture auxiliary treatment device which comprises a shank fixing part, a foot fixing part and an L-shaped protection part, wherein the transverse sections of the shank fixing part, the foot fixing part and the L-shaped protection part are arc-shaped, and the longitudinal section of the L-shaped protection part is L-shaped; the shank fixing part is matched with the L-shaped protection part for fixing shanks, and the foot fixing part is matched with the L-shaped protection part for fixing feet; the rear end of the lower part of the shank fixing part is hinged with the rear end of the upper part of the foot fixing part, and the front end of the lower part of the shank fixing part is connected with the front end of the upper part of the foot fixing part through a spring; the shank fixing part and the foot fixing part sequentially comprise a rigid supporting layer, a carbon fiber composite heating layer, a fiber blended fabric layer and a bacteriostatic layer from outside to inside, and a temperature sensing device is arranged in the fiber blended fabric layer; the L-shaped protection part sequentially comprises a carbon fiber composite heating layer, a fiber blended fabric layer and a bacteriostatic layer from outside to inside.

The invention is connected with the carbon fiber composite heating layer through the circuit, the power supply quantity of the carbon fiber composite heating layer is adjusted by utilizing the temperature sensing device in the fiber blended fabric layer so as to adjust the heating power, the temperature is kept between 40 and 45 ℃, the expansion of local blood vessels is facilitated, the blood circulation is accelerated, the venous and lymphatic return is promoted, the metabolism is accelerated, and the swelling and inflammation are eliminated; most of the carbon fiber composite heating layers are impregnated with thermoplastic resin, the resin expands in the heating process, the generated mechanical compression effect can promote the elimination of soft tissue swelling contacted with the carbon fiber composite heating layers, the heat is transferred to deep tissues, the ductility of collagen tissues is increased, scars are softened, and the connective tissues with adhesion are loosened; the shank fixing part is hinged with one end of the foot fixing part and is connected with the other end of the foot fixing part through a spring, on one hand, the shank fixing part is beneficial to the patient to carry out active exercise training (such as flexion and extension activities of toes and small-range flexion and extension activities of ankle joints) by himself, the joint of the patient can be restored after flexion and extension activities of the patient are facilitated by adopting a spring mode, the extensibility of tissues can be kept or increased through the motion of the shank fixing part, the moving range of the joints is improved, various sensory information such as the static position and movement change of the joints, the movement direction of the joints, muscle tension and change thereof are provided, the body feedback is increased, the position sense and the movement sense are enhanced, on the other hand, the joint loosening operation treatment of passive activities such as pushing and pulling is convenient for an operator, the flowing of joint fluid is promoted, the nutrition of joint cartilage and, can relieve pain by combining with joint loosening, and prevent joint degeneration caused by reduced movement. The auxiliary treatment device can combine physical factor treatment with movement treatment, is convenient for the operation of joint loosening operation treatment, and is beneficial to improving the recovery effect of the dysfunction of the ankle fracture patient.

In addition, the shank fixing part and the foot fixing part are provided with the rigid supporting layers, so that the joint can be fixed, the L-shaped protection part does not adopt the rigid supporting layers, correspondingly, the flexible fiber fabrics are adopted, the fitting property is good, and the problem of limb swelling in the natural course of the fracture patient is solved; through the use of fibers of each layer of the shank fixing part, the foot fixing part and the L-shaped protection part, the material is light and convenient, the skin breathing is facilitated, the pruritus and the peculiar smell are reduced, and the antibacterial layer close to the skin is further arranged, so that various bacteria on the surface of the skin can be inhibited or killed, the part is kept clean, and the infection is prevented.

In a preferred embodiment of the present invention, the rigid support layer is formed by composite molding of a three-dimensional woven preform made of a mixture of high-strength fibers and high-toughness fibers and a thermosetting resin.

Preferably, the high-strength fiber is selected from high-strength carbon fiber, for example, the high-strength carbon fiber is one of T300, T700 and T800.

Preferably, the high-toughness fibers are selected from one or a combination of UHMWPE fibers and aramid fibers.

Preferably, the hybrid volume ratio of high strength fibers to high tenacity fibers is from 2:1 to 5: 1. The layer is predominantly supportive and therefore the high strength fibers are used in slightly higher amounts than the high tenacity fibers.

Preferably, the thermosetting resin is one of epoxy resin, unsaturated polyester resin and phenolic resin, and the content of the thermosetting resin in the rigid support layer is 35-50%.

In a preferred embodiment of the present invention, the carbon fiber composite heating layer is formed by mixing and weaving carbon fibers and high-tenacity fibers, and after the carbon fibers and the high-tenacity fibers are mixed, the carbon fibers are impregnated with a thermoplastic resin glue solution and dried to form the carbon fiber composite heating layer.

Preferably, the carbon fiber is selected from one of viscose-based carbon fiber and PAN-based carbon fiber, and the mixing volume ratio of the carbon fiber to the high-tenacity fiber is 1:1-1: 3.

Preferably, the thermoplastic resin is one of thermoplastic polyurethane or rubber elastomer, and the content of the thermoplastic resin in the carbon fiber composite heating layer is 5-15%. And (3) drying the impregnated thermoplastic resin glue solution at the temperature of about 100 ℃. In the carbon fiber composite heating layer, the mixed weaving fiber layer impregnated with thermoplastic resin has higher insulativity, thereby not only avoiding electric leakage but also reducing the arrangement of an insulating layer and enhancing the overall portability of the fixing device.

In a preferred embodiment of the present invention, the fiber blended fabric layer is woven from one or more blended fibers selected from cotton fiber, hemp fiber, wool fiber, nylon fiber, polyester fiber and acrylic fiber. Preferably, the temperature sensing device is a temperature sensing line, and the temperature sensing line can be introduced in a mixed knitting manner in the knitting process of the fiber blended fabric layer.

In a preferred embodiment of the invention, the antibacterial layer is composed of an activated carbon fiber filament fabric and nano-silver attached particles coated on the surface, wherein the activated carbon fiber filament is prepared by high-temperature activation of high-strength carbon fibers, and the specific surface area of the activated carbon fiber filament is 1000-2000 m-²The activated carbon fiber filament fabric can adopt plain weave, twill weave and other forms; the grain size of the used nano silver particles is 50-100nm, and the proportion of the used nano silver particles accounts for 5-10% of the antibacterial layer.

The bacteriostatic layer provided by the invention not only utilizes the inhibiting and killing effects of the nano-silver particles on various bacteria, but also utilizes the adsorbability of the activated carbon fiber to improve the inhibiting effect of the activated carbon fiber on various bacteria.

In a preferred embodiment of the invention, the spring is one of a replaceable tension spring, a replaceable pressure spring, a replaceable torsion spring and the like, and can be suitable for flexion and extension and rotation activities of the joint and passive activity treatment such as pushing, traction and rotation in the joint loosening operation. Preferably, the spring is a spring pack.

In a preferred embodiment of the present invention, the lower leg fixing part and the L-shaped protector fix the lower leg by the buckle and the fixing band, and the foot fixing part and the L-shaped protector buckle and the fixing band fix the foot part, so as to adjust the fit degree of the treatment device and the joint and enhance the fixation.

The invention achieves the following beneficial effects:

(1) the auxiliary treatment device combines physical factor treatment with motion treatment, is convenient for an operator to carry out joint loosening operation treatment of passive movement such as pushing, traction and the like, can improve the recovery effect of the functional disorder of the ankle fracture patient, improves the life quality of the patient, and can effectively prevent traumatic arthritis or degenerative arthritis.

(2) The device has good fixing performance and fitting performance and strong practicability; the device is lightweight, helping to keep the site clean and prevent infection.

Drawings

FIG. 1 is a schematic structural view of an ankle fracture auxiliary treatment device according to the present invention

FIG. 2 is a schematic view of the layered structure of the shank fastening part and the foot fastening part

FIG. 3 is a schematic view of a hierarchical structure of an L-shaped guard

In the figure, a 1L-shaped protective part, a 2 shank fixing part, a 3 foot fixing part, a 4 spring, a 5 hasp and fixing band, a 6 antibacterial layer, a 7 fiber blended fabric layer, an 8 carbon fiber composite heating layer and a 9 rigid supporting layer

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, and/or combinations thereof.

Example 1

The ankle joint fracture auxiliary treatment device comprises a shank fixing part 2, a foot fixing part 3 and an L-shaped protection part 1, wherein the transverse sections of the shank fixing part 2, the foot fixing part 3 and the L-shaped protection part 1 are arc-shaped, and the longitudinal section of the L-shaped protection part 1 is L-shaped; the shank fixing part 2 is matched with the L-shaped protection part 1 for fixing shanks, and the foot fixing part 3 is matched with the L-shaped protection part 1 for fixing feet; the lower rear end of the shank fixing part 2 is hinged with the upper rear end of the foot fixing part 3, and the lower front end of the shank fixing part 2 is connected with the upper front end of the foot fixing part 3 through a spring 4; the shank fixing part 2 and the foot fixing part 3 sequentially comprise a rigid supporting layer 9, a carbon fiber composite heating layer 8, a fiber blended fabric layer 7 and a bacteriostatic layer 6 from outside to inside, and a temperature sensing device is arranged in the fiber blended fabric layer 7; l shape protection part includes carbon fiber composite heating layer 8, fibre blend fabric layer 7, bacteriostatic layer 6 three layer construction from outside to inside in proper order, and shank fixed part 2 passes through hasp and fixed band 5 with L shape protection part 1 and fixes the shank, and foot fixed part 2 adopts hasp and fixed band 5 fixed foot with L shape protection part 1, and spring 4 is scalable spring group.

The rigid supporting layer is a three-dimensional braided preform (three-dimensional five-way braiding) prepared by mixing high-strength carbon fibers T800 and UHMWPE fibers according to the ratio of 2:1, thermosetting resin is added for composite forming, and the thermosetting resin is epoxy resin with the content of 50%.

The carbon fiber composite heating layer is formed by mixing viscose-based carbon fibers and UHMWPE fibers in a ratio of 1:1, impregnating thermoplastic polyurethane resin glue solution, and drying and molding at 100 ℃.

The fiber blended fabric layer is woven by fibrilia and polyamide fiber, an ultrafine fiber temperature monitoring sensing line with the diameter of 0.05mm is adopted to be mixed with the fabric in the mixed weaving process, and the coverage area of the temperature sensing line on the fiber blended fabric layer is 20-30%.

The antibacterial layer is formed by weaving activated carbon fiber filaments prepared by high-temperature activation of high-strength carbon fiber T800Forming twill fabric, the specific surface area of the active carbon fiber filament is 2000m²The surface of the twill fabric is provided with a nano silver particle attachment layer with the particle size of 50nm by a spraying technology, and the surface density of the twill fabric is 100g/m²The mesh number of the fabric is 500 meshes, and the ratio of the nano silver particles accounts for 10 percent of the antibacterial layer.

The layers are bonded and compounded.

When the ankle joint rehabilitation training device is used, the lower leg part and the foot part are fixed by the aid of the hasps and the fixing belts, the lower leg part and the foot part are connected with the carbon fiber composite heating layer through the circuit, the power supply amount of the carbon fiber composite heating layer is adjusted by the aid of the temperature sensing device in the fiber blended fabric layer so as to adjust heating power, the temperature is kept at 40-45 ℃, meanwhile, a patient carries out active exercise training by himself or herself, such as flexion and extension activities of toes and small-range flexion and extension activities of ankle joints, and active activities and resetting are carried out by combining elasticity of the spring group, and.

Example 2

The ankle joint fracture auxiliary treatment device comprises a shank fixing part 2, a foot fixing part 3 and an L-shaped protection part 1, wherein the transverse sections of the shank fixing part 2, the foot fixing part 3 and the L-shaped protection part 1 are arc-shaped, and the longitudinal section of the L-shaped protection part 1 is L-shaped; the shank fixing part 2 is matched with the L-shaped protection part 1 for fixing shanks, and the foot fixing part 3 is matched with the L-shaped protection part 1 for fixing feet; the lower rear end of the shank fixing part 2 is hinged with the upper rear end of the foot fixing part 3, and the lower front end of the shank fixing part 2 is connected with the upper front end of the foot fixing part 3 through a spring 4; the shank fixing part 2 and the foot fixing part 3 sequentially comprise a rigid supporting layer 9, a carbon fiber composite heating layer 8, a fiber blended fabric layer 7 and a bacteriostatic layer 6 from outside to inside, and a temperature sensing device is arranged in the fiber blended fabric layer 7; l shape protection part includes carbon fiber composite heating layer 8, fibre blend fabric layer 7, bacteriostatic layer 6 three layer construction from outside to inside in proper order, and shank fixed part 2 passes through hasp and fixed band 5 with L shape protection part 1 and fixes the shank, and foot fixed part 2 adopts hasp and fixed band 5 fixed foot with L shape protection part 1, and spring 4 is the torsional spring group.

The rigid supporting layer is a three-dimensional woven preform (adopting three-dimensional four-way weaving) prepared by mixing high-strength carbon fibers T300 and aramid fibers according to a ratio of 3:1, thermosetting resin is added for composite forming, and the thermosetting resin is epoxy resin and accounts for 50%.

The carbon fiber composite heating layer is formed by mixing viscose-based carbon fibers and aramid fibers in a ratio of 1:1, then impregnating thermoplastic polyurethane resin glue solution, and drying and molding at 100 ℃.

The fiber blended fabric layer is woven by cotton fibers and polyester fibers, superfine fiber temperature monitoring sensing wires with the diameter of 0.08mm are adopted to be mixed with the fabric in the mixed weaving process, and the coverage area of the temperature sensing wires on the fiber blended fabric layer is 20-30%.

The antibacterial layer is formed by weaving activated carbon fiber filaments prepared by high-temperature activation of high-strength carbon fibers T300 into a plain weave fabric, and the specific surface area of the activated carbon fiber filaments is 1500m²The surface of the fabric is impregnated to prepare a nano silver particle attachment layer with the particle size of 50nm, and the areal density of the fabric is 120g/m²The mesh number of the fabric is 450 meshes, and the ratio of the nano silver particles accounts for 10 percent of the antibacterial layer.

Each layer is formed by longitudinal stitching.

When the joint loosening treatment device is used, the small legs and the feet are fixed through the hasps and the fixing belts, the circuit is connected with the carbon fiber composite heating layer, the power supply quantity of the carbon fiber composite heating layer is adjusted through the temperature sensing device in the fiber blended fabric layer so as to adjust the heating power, the temperature is kept at 40-45 ℃, and meanwhile an operator can buckle the foot fixing portion 3 to perform joint loosening treatment of passive movement such as pushing, drawing, twisting and the like.

Claims

1. An ankle joint fracture auxiliary treatment device is characterized by comprising a shank fixing part, a foot fixing part and an L-shaped protection part, wherein the transverse sections of the shank fixing part, the foot fixing part and the L-shaped protection part are arc-shaped, and the longitudinal section of the L-shaped protection part is L-shaped; the shank fixing part is matched with the L-shaped protection part for fixing shanks, and the foot fixing part is matched with the L-shaped protection part for fixing feet; the rear end of the lower part of the shank fixing part is hinged with the rear end of the upper part of the foot fixing part, and the front end of the lower part of the shank fixing part is connected with the front end of the upper part of the foot fixing part through a spring; the shank fixing part and the foot fixing part sequentially comprise a rigid supporting layer, a carbon fiber composite heating layer, a fiber blended fabric layer and a bacteriostatic layer from outside to inside, and a temperature sensing device is arranged in the fiber blended fabric layer; the L-shaped protection part sequentially comprises a carbon fiber composite heating layer, a fiber blended fabric layer and a bacteriostatic layer from outside to inside;

the carbon fiber composite heating layer is formed by mixing and weaving carbon fibers and high-toughness fibers, and after the carbon fibers and the high-toughness fibers are mixed, thermoplastic resin glue solution is impregnated and dried for forming;

the rigid supporting layer is formed by compounding a three-dimensional woven preform made of high-strength fibers and high-toughness fibers and thermosetting resin;

the high-toughness fibers in the rigid supporting layer are selected from one or the combination of UHMWPE fibers and aramid fibers.

2. The ankle fracture auxiliary treatment device according to claim 1, wherein the lower leg fixing part and the L-shaped protector fix the lower leg by a buckle and a fixing band, and the foot fixing part fixes the foot by the buckle and the fixing band of the L-shaped protector.

3. The ankle fracture adjuvant therapy device according to claim 1, wherein the high-strength fiber is a high-strength carbon fiber.

4. The ankle fracture auxiliary treatment device according to claim 3, wherein the high-strength carbon fiber is one of T300, T700 and T800.

5. The ankle fracture adjuvant treatment device according to claim 1, wherein the hybrid volume ratio of the high-strength fibers to the high-toughness fibers in the rigid support layer is 2:1 to 5: 1.

6. The ankle fracture adjuvant therapy device according to claim 1, wherein the thermosetting resin is one of epoxy resin, unsaturated polyester resin, phenolic resin.

7. The ankle fracture adjuvant treatment device according to claim 1, wherein the content of the thermosetting resin in the rigid supporting layer is 35% to 50%.

8. The ankle fracture adjuvant therapy device according to claim 1, wherein the carbon fiber is selected from one of viscose-based carbon fiber and PAN-based carbon fiber.

9. The ankle fracture auxiliary treatment device according to claim 1, wherein the mixing volume ratio of the carbon fibers to the high-tenacity fibers in the carbon fiber composite heating layer is 1:1 to 1: 3.

10. The ankle fracture auxiliary treatment device according to claim 1, wherein the thermoplastic resin is one of thermoplastic polyurethane and rubber elastomer.

11. The ankle fracture auxiliary treatment device according to claim 1, wherein the content of the thermoplastic resin in the carbon fiber composite heating layer is 5% -15%.

12. The ankle fracture auxiliary treatment device according to claim 1, wherein the thermoplastic resin glue solution is impregnated and then dried at 100 ℃.

13. The ankle fracture auxiliary treatment device according to claim 1, wherein the fiber blended fabric layer is woven from blended fibers of one or more of cotton fibers, hemp fibers, wool fibers, polyamide fibers, polyester fibers and acrylic fibers.

14. The ankle fracture adjuvant therapy device according to claim 1, wherein the temperature sensing means is a temperature sensing line.

15. The ankle fracture adjuvant therapy device according to claim 14, wherein the temperature sensing thread is co-woven in the course of weaving the fiber blended fabric layer.

16. The ankle fracture adjuvant therapy device according to claim 1, wherein the antibacterial layer is composed of activated carbon fiber filament fabric and nano silver attachment particles coated on the surface.

17. The ankle fracture adjuvant therapy device according to claim 16, wherein the activated carbon fiber filament is prepared by high temperature activation using high strength carbon fiber.

18. The auxiliary treatment device for ankle fracture according to claim 16, wherein the activated carbon fiber filament has a specific surface area of 1000-2000m²And/g, the activated carbon fiber filament fabric adopts plain weave and twill weave.

19. The ankle fracture adjuvant therapy device according to claim 16, wherein the particle size of the nano silver particles used is 50-100nm, and the nano silver particles are used in a proportion of 5% -10% of the antibacterial layer.