TWI778500B - Elastic pressure garment and the manufacture method thereof - Google Patents

Abstract

The invention discloses an elastic pressure garment for wearing on a patient's body and for applying pressure on an affected part of the patient's body; the circumference of the elastic pressure garment is compared with the circumference of the corresponding part of the patient's body, the degree has a reduced scale, so that the elastic pressure garment can produce strain when worn on the patient's body; the elastic pressure garment is woven with nylon fibers, and the elastic pressure garment has 10% to 40% porosity, the elastic modulus is between 2.5 GPa and 1.5 GPa; the porosity of the elastic pressure garment changes with a target stress that the elastic pressure garment is expected to act on the surface of the patient's body.

Description

Elastic pressure fabric and method of making the same

The present invention relates to an elastic pressure fabric with a pain relief function and a manufacturing method thereof, in particular to an elastic pressure fabric with a pain relief function used for pressure therapy and a manufacturing method thereof.

In recent years, textiles and fibers in biomedical development have grown rapidly in therapeutic applications. Medical textiles cover medical products and devices ranging from wound dressings and bandages to high-tech applications including vascular implants, tissue engineering scaffolds and other medical textiles. The structure of polymers determines their utilization in various fields, but the choice of subsequent use depends largely on the chemical and physical properties of the polymer.

As reported in previous studies, elastic pressure fabrics have some applications in clinical reports, eg, pressure therapy for burns, relief of varicose veins, scar treatment, scoliosis correction, etc. Some recent studies have also shown that the clinical application of more and more functional textile technology can benefit patients with pain relief. In order to provide better treatment results in a constant time, thermal functional textiles are required to closely conform to the body curve and to contact the target skin location with a large area, and evenly distribute the thermal energy in the event of overheating. Generally, polyamides (nylons) are most commonly found in functional apparel due to their excellent chemical and physical properties.

As we all know, 6 weeks to 3 months after the wound heals, the scar will start to proliferate, and the hyperplastic wound scar will be red, swollen, protruding, and hard, and will shrink towards the center of the wound, so the wound scar will be itchy and painful. , Sensitivity, discomfort of congestion and numbness. Compression therapy for wound scars mainly uses compression garments, which generate pressure through the elasticity of the compression garment fabric, which can provide vertical pressure on the scar, thereby reducing blood flow to the scar tissue, flattening the scar, increasing flexibility, and reducing edema , and accelerate the process of scar maturation. However, the design of existing pressure garments usually only considers the compressive stress applied vertically to the wound scar, but does not take into account the discomfort caused by the inward contraction of the skin on the surface of the scar. Moreover, in order to generate sufficient pressure, the existing pressure garments are usually made of elastic fabrics with high density and high elastic modulus. In other words, when the existing elastic compression garment is worn on a patient, it usually has insufficient stretchability and poor air permeability, which easily causes discomfort to the patient who wears it.

The technical problem to be solved by the present invention is to provide an elastic pressure fabric and a manufacturing method thereof aiming at the deficiencies of the existing elastic pressure garments, so as to overcome the deficiencies of the existing elastic pressure garments.

In order to solve the above-mentioned technical problems, an embodiment of the present invention provides an elastic pressure fabric for wearing on a patient's body and for applying pressure to an affected part of the patient's body; the circumference of the elastic pressure fabric is compared with The circumference of the corresponding part of the patient's body has a reduced dimension, so that when the elastic pressure fabric is worn on the patient's body, it can closely adhere to the surface of the patient's body and the affected part, and generate tensile strain, The surface of the affected part is driven by the elastic pressure fabric to generate a balanced stress distributed along the contact surface of the affected part and the elastic pressure fabric and expanded outward from the center of the affected part; the elastic pressure fabric Being woven from nylon fibers, the elastic pressure fabric has a porosity of 10% to 70%, the porosity of the elastic pressure fabric varies with whatever the elastic pressure fabric is expected to act on the patient's body surface. change according to the target value of the equilibrium stress.

The present invention also provides a method for manufacturing elastic pressure fabrics. The method for manufacturing elastic pressure fabrics includes the following steps: establishing a human body model: establishing a human body model according to the size information of the patient's body; The stress information on the surface of the affected part is described, and the target value of the equilibrium stress is calculated; the elastic pressure fabric model establishment step: using the size information of the human body model, and adjusting the size information of the human body model with a predetermined reduction scale, obtaining The size information of the elastic pressure fabric model, and an elastic pressure fabric model is established based on the size information of the elastic pressure fabric model; the elastic pressure fabric porosity calculation step: using the porosity of the elastic pressure fabric, and the elastic pressure fabric wearing The correlation equation between the strain generated on the patient's body and the stress acting on the surface of the patient's body, and the porosity data of the elastic pressure fabric is calculated according to the target stress calculated in the stress analysis step of the affected part; And the weaving step: using the elastic pressure fabric model and the porosity data of the elastic fabric, weaving the elastic pressure fabric.

One of the beneficial effects of the present invention is that by changing the porosity of the elastic pressure fabric, when the elastic pressure fabric is worn on the patient's body, the tensile stress generated on the surface of the patient's body can be balanced with the compressive stress of an affected tissue of the patient , and achieve the purpose of relieving pain, and make the elastic pressure fabric breathable and improve comfort.

For a further understanding of the features and technical content of the present invention, please refer to the following detailed descriptions and drawings of the present invention. However, the drawings provided are only for reference and description, and are not intended to limit the present invention.

Referring to FIG. 1 and FIG. 2 , the present invention provides an elastic pressure fabric 100 with a pain relief function, the elastic pressure fabric 100 can be worn on a patient's body 200 and at least covers an affected part 210 of the patient's body 200 . In an embodiment of the present invention, the elastic pressure fabric 100 may be an elastic pressure garment, but the present invention is not limited thereto. For example, the elastic pressure fabric 100 may be a corset worn on the patient's legs, arms, and torso, or It is an integrated elastic bandage wrapped around the affected part of the user's body. In a preferred embodiment of the present invention, the elastic pressure fabric 100 is a porous elastic fabric woven from polyamide (nylon), so it has stretch elasticity, and can be worn on the patient's body 200. Evenly dissipates heat and reduces allergies.

As shown in FIG. 2 , it is a schematic diagram of the elastic pressure fabric 100 of the present invention being worn on the surface of the affected part 210 of the patient's body 200 . As shown in FIG. 3 , the affected part 210 can be a large-area scar on the human skin surface (such as burns, surgical scars), or a protruding scar formed by varicose veins and protruding from the surface of the patient's body 200 . Since the human skin will start to grow scars after healing, and the hyperplastic scars will be red, swollen, convex, and hard, and the scar tissue will shrink toward the center, resulting in compressive stress, which makes the scar area uncomfortable due to stress.

The elastic pressure fabric 100 of the present invention determines a predetermined reduction scale of the elastic pressure fabric 100 according to the three-dimensional model obtained by scanning the patient's body 200 and the size of the pressure that needs to be applied to the affected part 210 of the patient's body 200 . The size information of the elastic pressure fabric 100 is calculated, and the elastic pressure fabric 100 is manufactured according to the size information of the elastic pressure fabric 100 . Therefore, the elastic pressure fabric 100 can be stretched by the patient's body 200 when worn on the patient's body 200 , so that the elastic pressure fabric 100 is pressed against the outer surface of the patient's body 200 .

As shown in FIGS. 2 and 3 , when the elastic pressure fabric 100 of the present invention is worn on the surface of the patient's body 200 , it can generate a vertical pressure F perpendicular to the surface of the affected part 210 , thereby reducing the blood flow of the affected part 210 and making the The affected part 210 is flattened, softness is increased, edema is reduced, and the process of scar maturation is accelerated. In addition, since the elastic pressure fabric 100 is stretched and stretched after being worn on the patient's body 200, and the elastic pressure fabric 100 is closely attached to the surface of the affected part 210, the affected part is The surface of 210 and the inner side of the elastic pressure fabric 100 form an elastic contact and frictional junction, so when the elastic pressure fabric 100 is supported by the patient's body 200 to produce tensile strain, it can also drive all The surface skin of the affected part 210 produces a strain that expands from the inside to the outside, so that the skin surface of the affected part 210 is distributed along the junction between the affected part 210 and the elastic pressure fabric 100, and the affected part is The tensile stress f2 extending outward from the center of the 210 is opposite to the compressive stress f1 caused by the inward condensing of the tissue under the epidermis of the affected part 210, thus balancing the inward direction of the affected part 210 tissue. The compressive stress f1 generated by the condensation can achieve the effect of relieving pain.

The main feature of the elastic pressure fabric 100 of the present invention is that the elastic pressure fabric 100 can adjust the porosity of the elastic pressure fabric 100 according to a stress information of the affected part 210 of the patient's body 200 during weaving, When the elastic pressure fabric 100 is worn on the patient's body 200 , the tensile stress f2 acting on the surface of the affected part 210 can be balanced with the compressive stress f1 generated by the inward polymerization of the skin on the surface of the affected part 210 .

In particular, the stress information of the affected part 210 can be obtained through various methods. For example, the stress information of the affected part 210 can be analyzed through the appearance, size and pathological tissue analysis method of the affected part 210 to determine the stress value of the internal stress of the affected part 210; or obtained through actual measurement Stress information of the affected part 210 . One of the possible methods to obtain the stress information of the affected part 210 by using the actual measurement method is to apply stress to the skin surface of the affected part 210 , and then use optical image processing means and software analysis means to calculate the affected part 210 The stress-strain relationship is obtained by obtaining the stress information of the affected part 210 .

After the stress information of the affected part 210 is obtained, a balanced stress value that can achieve the pain relief effect can be further evaluated. Specifically, the equilibrium stress value refers to the magnitude of the tensile stress f2 generated by the elastic pressure fabric 100 acting on the surface of the affected part 210 , and the equilibrium stress value is substantially equal to or close to the affected part 210 The compressive stress f1 generated by the inward condensing of the tissue can make the stress on the surface and the inside of the affected part 210 reach a balanced state, so as to achieve the purpose of relieving pain.

The elastic pressure fabric 100 of the present invention is knitted by a knitting machine with adjustable knitting density (for example, a numerically controlled banner knitting machine), so the needle density can be precisely controlled during knitting, and the elastic pressure fabric 100 can be changed. porosity. The embodiments shown in FIG. 4A and FIG. 4B are respectively enlarged schematic views of the weaving structures of the elastic pressure fabrics with two different porosity of the present invention. Among them, the embodiment shown in FIG. 4A uses nylon fibers with a diameter of 20 μm, and the porosity is about 10.3%. The embodiment shown in FIG. 4B also uses nylon fibers with a diameter of 20 μm, but the porosity is enlarged to be close to 38.5%. Example.

The porosity of the elastic pressure fabric 100 can be confirmed by means of image analysis. For example, as shown in FIG. 4C and FIG. 4D , the porosity of the elastic fabric shown in FIG. 4A and FIG. 4B is identified and calculated through image analysis software, respectively. Schematic diagram of the operation method. Through the image analysis software, the enlarged image of the elastic pressure fabric 100 can be processed, the fibers and the gaps between the fibers in the image can be distinguished by different color blocks, and the porosity can be calculated through the ratio of the color blocks.

In a specific embodiment of the present invention, the porosity and various mechanical properties of the elastic pressure fabric 100 can be obtained by providing the elastic pressure fabric 100 with different porosity, and through the finite element analysis method and software analysis. properties, and the correlation between the tensile stress acting on the patient's body 200, and further depending on the correlation between the porosity of the elastic pressure fabric 100 and the tensile stress acting on the patient's body 200 The porosity of the elastic pressure fabric 100 is determined.

As shown in Table 1, in this embodiment, a variety of elastic pressure fabric 100 samples with different porosity are prepared, each of which is woven with nylon fibers with a diameter of 20 μm and a thickness of 2 mm. The elastic pressure fabrics 100 of each different sample are respectively assigned to BSC-1, BSC-2, BSC-3, BSC-4, BSC-5, BSC-6 and BSC-7 according to their porosity, from small to large. 's code name. Table 1: List of porosity of elastic compression fabric samples. sample BSC-1 BSC-2 BSC-3 BSC-4 BSC-5 BSC-6 BSC-7 Porosity% 10.28% 12.73% 14.00% 18.91% 29.98% 35.18% 38.46%

Specifically, in this embodiment, the elastic pressure fabric 100 can be a single-layer woven structure, but the present invention is not limited thereto. For example, the elastic pressure fabric 100 can also be a multi-layer structure. It should be noted that, in this embodiment, the plurality of elastic fabric samples with different porosity (BSC-1 to DSC-7) are all woven with the same diameter fibers, and the number and thickness of the woven layers are the same. for the same. In other words, when the elastic pressure fabric 100 of the present invention is manufactured, on the premise of using the same diameter fibers and the number and thickness of woven layers, the elastic pressure fabric 100 can be adjusted to act on the patient's body by changing the porosity. 200 and the stress of the affected part 210 surface.

Next, through the software simulation method, it is simulated that when the elastic pressure fabric 100 is worn on the patient's body 200, the elastic pressure fabric 100 acts on the patient's body 200 and all the different porosity and different deformations. The correlation of the equilibrium stress on the surface of the affected part 210 is described, and a correlation equation is obtained, which can be used to calculate the porosity of the elastic pressure fabric 100 when the elastic pressure fabric 100 is manufactured.

In the embodiment of the present invention, the finite element analysis method is used to simulate the stress change of the elastic pressure fabric 100 worn on the patient's body 200 . As shown in FIGS. 5A to 5C , a human body model 300 simulating a patient's human body 200 is provided, and an elastic pressure fabric model 400 matched with the human body model 300 is established according to the human body model 300 . The human body model 300 can be created by 3D drawing software, or a three-dimensional model obtained by scanning the patient's human body 200 through a three-dimensional scanning device. In order to be able to analyze the human body model 300 and the elastic pressure fabric model 400 with finite element analysis software, the human body model 300 and the elastic pressure fabric model 400 can be meshed through software processing, respectively. In addition, in order to obtain a more accurate analysis result, in this embodiment, the meshes of the human body model 300 and the elastic pressure fabric model 400 are refined by using tetrahedral elements with 10 nodes. As shown in FIG. 5A , in this embodiment, the mannequin 300 is based on a woman of 176 cm, and the waist circumference is set to be 29 inches, the abdomen circumference to be 39 inches, and the hip circumference to be 41 inches.

As shown in FIG. 5B , it is a schematic diagram of the elastic pressure fabric model 400 , and FIG. 5C shows a model formed after the elastic pressure fabric model 400 is combined with the human body model 300 . The elastic pressure fabric model 400 can be based on the size information of the human body model 300 and adjusted by using a predetermined reduction scale to obtain the size information of the elastic pressure fabric model 400, and then according to the elastic pressure fabric The dimensional information of the model 400 creates the elastic pressure fabric model 400 . In particular, the shrinkage scale is defined as the size reduction of each circumference of the pressure fabric model 400 compared to the mannequin 300 , and the shrinkage scale can be expressed as the reduced size of each circumference, or can be expressed as expressed as a percentage reduction. In this embodiment, the size reduction of each circumference of the pressure fabric model 400 compared with the circumference of the human body model 300 is used as the reduction scale.

Then, the human body model 300 and the elastic pressure fabric model 400 are used to analyze the porosity and wear of the elastic pressure fabric 100 through engineering analysis software (eg: ANSYS Workbench) and finite element analysis method. The amount of stretching deformation generated on the patient's body 200 and the equilibrium stress change on the surface of the patient's body 200 . As shown in Table 2, when the finite element analysis is performed using the human body model 300 and the elastic pressure fabric model 400, the mechanical properties of the human body model 300 and the elastic pressure fabric 100 with various porosity are shown. In this embodiment, the elastic modulus of the human body model 300 is 8.8×10 −2 (Mpa), and the Poisson's ratio (Poisson's ratio) of the human body model 300 is set to 0.22. The elastic modulus of nylon fiber is based on the actual test data of the sample, and its Poisson's ratio is 0.35. Table 2: Model using material mechanical properties. Material Elastic modulus (MPa) Poisson's ratio human body ^8.8x10-2 0.22 Elastic pressure fabric fibers actual test data 0.35

Then use the human body model 300 and the elastic pressure fabric model 400 to analyze through engineering analysis software (eg: ANSYS Workbench), and use the finite element analysis method to analyze the state of different porosity and different stretching deformation. The elastic pressure fabric 100 is generated from the stress change on the surface of the patient's body 200 .

Next, the elastic modulus and mechanical properties of each different sample of the elastic pressure fabric 100 can be obtained by mechanical testing, and the porosity and elastic modulus of the different elastic pressure fabric 100 can be obtained through statistical software calculation. Regression equations for numbers. As shown in FIG. 6 , in order to pass the tensile test, a coordinate diagram of the porosity and elastic modulus of the different elastic pressure fabric 100 samples is obtained. Among them, the elastic modulus of the plurality of samples of the elastic pressure fabric 100 with different porosity varies from 2.57GPa (BSC-1) to 1.58GPa (BSC-7) with the change of porosity. And through statistical software analysis, the linear correlation coefficient is R2=0.806 (p<0.01), and the linear regression equation (1) can be obtained, so it can be known that the elastic coefficient and porosity of the elastic pressure fabric 100 are negatively correlated. linear relationship. EBSC is the estimated elastic modulus of the elastic pressure fabric 100 , EBSC′ is the elastic modulus of the elastic pressure fabric 100 as a reference sample (BSC-1 in this embodiment), and P is the elastic modulus of the elastic pressure fabric 100 Porosity.

Next, the stress changes generated by the elastic pressure fabrics 100 with the same porosity under different stretch deformation amounts are further analyzed, and in the case of the same stretch deformation amount, a plurality of the elastic pressure fabrics 100 with different porosity act on the The stress change situation on the surface of the human body model 400 is described. As shown in Table 3, the lower half of Table 3 is the porosity of the elastic pressure fabric model 400 set as the BSC-1 sample, and the stretch deformation caused by wearing on the human body model 300 is 10 cm, The pressure changes generated under the conditions of 15 cm, 20 cm, 25 cm, and 30 cm. In the upper part of Table 3, the stretch deformation of the elastic pressure fabric model 400 is set to 10 cm, but the porosity is set to the stress change of the porosity of the samples BSC-1 to BSC-7. .

As shown in FIG. 3 and Table 3, it is shown that when the elastic pressure fabric model 400 is set to a fixed porosity of 10.28%, when the stretch deformation is increased from 10 cm to 30 cm, the elastic pressure fabric The stress generated by 100 varies from 337.79 MPa to 1032.48 MPa, while the tensile stress acting on the surface of the manikin 300 by the elastic pressure fabric model 400 increases from 7.645 kPa to 22.825 kPa.

And when the stretch deformation set by the elastic pressure fabric model 400 is fixed at 10CM, and the porosity increases from 10.28% to 38.46%, the stress generated by the elastic pressure fabric 100 changes from 337.79MPa to 207.30MPa, and The range tensile stress of the manikin 300 surface was reduced from 7.645 kPa to 6.742 kPa.

At the same time, according to the data changes shown in Table 3, since the elastic modulus of the elastic pressure fabric 100 will increase sharply when the porosity is less than 10%, and the elastic modulus will sharply decrease when the porosity is greater than 38%, Therefore, in the embodiment of the present invention, the porosity of the elastic pressure fabric 100 is set in the range of 10% to 70%, and the elastic modulus thereof is between 2.5GPa and 1.0GPa. Through experiments of the present invention, when the porosity and elastic modulus of the elastic pressure fabric 100 are within the aforementioned ranges, the elastic pressure fabric 100 can have sufficient stretch elasticity, so that when it is worn on the patient's body 200, it can produce Sufficient balance of stress to eliminate discomfort caused by internal stress of the affected part 210 . At the same time, the elastic pressure fabric 100 has enough air-permeable pores to improve wearing comfort. Table 3: Porosity, modulus of elasticity, stretch deformation of the elastic pressure fabric, and experimental data of the elastic pressure fabric and the surface stress of the human body. Porosity(%) Elastic Modulus (GPa) Elastic pressure fabric stress (MPa) Human Surface Tensile Stress (kPa) Object stretch deformation (cm) BSC-7 (38.46) 1.58 207.30 6.742 10 BSC-6 (35.18) 1.91 249.98 6.783 10 BSC-5 (29.98) 2.00 267.13 6.910 10 BSC-4 (18.91) 2.12 282.20 7.365 10 BSC-3 (14.00) 2.15 287.28 7.523 10 BSC-2 (12.73) 2.23 289.04 7.588 10 BSC-1 (10.28) 2.57 337.79 7.645 10 BSC-1 (10.28) 2.57 506.53 11.464 15 BSC-1 (10.28) 2.57 675.60 15.283 20 BSC-1 (10.28) 2.57 845.12 19.109 25 BSC-1 (10.28) 2.57 1032.48 22.825 30

As shown in FIG. 7 , according to the data obtained in Table 3, the following results are calculated by statistical software. When the reduced dimension of the elastic pressure fabric model 400 remains unchanged at 10 cm, the stretching of the human body model 300 The stress is 7.22 ± 0.40 kPa. The relationship between the porosity of the elastic pressure fabric model 400 and the Fan's equivalent stress of the human body was calculated by correlation analysis, and the Pearson correlation coefficient was -0.996 (p < 0.01). In other words, the porosity of the elastic pressure fabric exhibits a strong negative correlation with the stress acting on the human body. The linear correlation coefficient is R2=0.991 (p < 0.01), and the linear regression equation (2) can be obtained.

In addition, statistical software can be used to analyze the relationship between the strain and porosity of the elastic pressure fabric model 400 and the tensile stress acting on the surface of the human body model 300 by the elastic pressure fabric 400 through multiple linear regression analysis. , and obtain the multiple linear regression equation (3) with the porosity and strain of the elastic pressure fabric model 400 as independent variables and the stress acting on the human body surface by the elastic pressure fabric model 400 as the dependent variables. The porosity of the elastic pressure fabric model 400 is P, the reduced scale of the elastic pressure fabric model 400 is ΔL, the original circumference of the human body model is L0, the tensile stress of the human body model 300 applied by the basic sample is σBody', and the estimated tension The tensile stress is σBody. Therefore, the linear correlation coefficient is R2=0.991 (p < 0.01), and the multiple linear regression equation (3) can be obtained.

The linear regression equation (3) can represent the relationship between the porosity and strain of the elastic pressure fabric 100 and the tensile stress acting on the surface of the affected part 210 after the elastic pressure fabric 100 is worn on the patient's body 200 . equation. In more detail, through the correlation equation, the present invention can first determine the stretch amount (ie ΔL/L0 ) of the elastic pressure fabric 100 worn on the patient's body 200 when manufacturing the elastic pressure fabric 100 , and According to the stress information of the affected part 210 of the patient's body 200, the equilibrium stress value (ie σBody) applied by the elastic pressure fabric 100 to the affected part 210 is determined, and then the elastic pressure fabric can be calculated through the correlation equation 100 required porosity P. Next, using the elastic pressure fabric model 400 and the data of the porosity P calculated through the correlation equation, the elastic pressure fabric 100 is fabricated using a numerically controlled weaving device.

In a preferred embodiment of the present invention, the elastic pressure fabric 100 can be designed to be woven with various porosity. For example, when weaving the elastic pressure fabric 100, the area of the elastic pressure fabric 100 corresponding to the affected part 210 of the patient's body 200 can be woven using the porosity calculated by the aforementioned analysis method, The remaining parts are woven with different porosity. In addition, the elastic pressure fabric 100 can also change the porosity of the local area by increasing or decreasing the knitting density at the parts of the elastic pressure fabric 100 corresponding to the armpits, crotch and other limbs of the patient's body 200, so that the elastic pressure Fabric 100 is more comfortable to wear.

The embodiment of the present invention also provides a manufacturing method S100 of an elastic pressure fabric. As shown in FIG. 8 , the elastic pressure fabric manufacturing method S100 includes: a human body model establishment step S110 , an affected part stress analysis step S120 , an elastic pressure fabric model establishment step S130 , an elastic pressure fabric pore calculation step S140 , and a weaving step S150 .

6A , the human body model building step S110 can scan the patient using the elastic pressure fabric 100 through a three-dimensional scanning device not shown in the figure to obtain the patient's human body 200 obtains dimensional information of the body part wearing the elastic pressure fabric 100, and uses the dimensional information to create the mannequin 300. In addition, in the step S110 of establishing the human body model, a meshing sub-step is further included, which is to mesh the human body model 300 so as to be suitable for finite element analysis.

Referring to FIG. 2 , the stress analysis step S120 of the affected part is to evaluate the magnitude of the compressive stress of the affected part 210 due to the inward shrinkage of the internal tissue according to the stress information of the affected part 210 of the patient's body 200 , and calculate the equilibrium stress value that can achieve the purpose of relieving pain.

As shown in FIG. 6B , the step S130 of establishing the elastic pressure fabric model is to obtain the size information of the elastic pressure fabric 100 , and the elastic pressure fabric model 400 is established according to the size information of the elastic pressure fabric 100 . The step S130 of establishing the elastic pressure fabric model also includes a sub-step of meshing, so that the elastic pressure fabric 100 is suitable for finite element analysis.

The elastic pressure fabric porosity calculation step S140 is to use the human body model 300 and the elastic pressure fabric model 400, and obtain the porosity and strain of the elastic pressure fabric 100 by means of finite element analysis and statistical analysis. variable, and a multiple linear regression equation with the Van's equivalent stress acting on the surface of the patient's body 200 by the elastic pressure fabric 100 as a dependent variable. Then, the equilibrium stress value obtained in the step S120 of the stress analysis of the affected part is used to calculate the required porosity of the elastic pressure fabric 100 by using the multiple linear regression equation.

The weaving step S150 is to use the elastic pressure fabric model 400 and the porosity calculated in the elastic pressure fabric porosity calculation step S140 to weave the elastic pressure fabric 100 . In particular, the elastic pressure fabric 100 can be woven using numerically controlled knitting equipment (eg, an integrated banner knitting machine).

The contents disclosed above are only preferred feasible embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, any equivalent technical changes made by using the contents of the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.

100: Elastic Pressure Fabric 110: Fiber 111: Pore 112: color block 200: patient body 210: Affected part 300: Mannequins 400: Elastic Compression Fabric Model F: Vertical stress f1: stress f2: stress S100: Manufacturing method of elastic pressure fabric S110: Steps of building a human body model S120: Stress analysis step of the affected part S130: Steps for establishing elastic pressure fabric model S140: Steps for calculating the pores of elastic pressure fabrics S150: Knitting step

FIG. 1 is a three-dimensional schematic diagram of the elastic pressure fabric of the present invention being worn on a patient's body.

FIG. 2 is a schematic diagram of a cross-section of the elastic pressure fabric of the present invention worn on a patient's body.

FIG. 3 is a partial enlarged schematic view of part III of FIG. 2 .

4A and 4B are enlarged schematic plan views of elastic pressure fabrics with different porosity of the present invention.

4C and 4D are schematic diagrams of the method for analyzing the porosity of elastic pressure fabrics with different porosity of the present invention through images.

FIG. 5A is a three-dimensional schematic diagram of a human body model used for finite element analysis of the elastic pressure fabric of the present invention.

5B is a schematic perspective view of an elastic pressure fabric model used for finite element analysis of the elastic pressure fabric of the present invention.

FIG. 5C is a schematic perspective view of the combination of the elastic pressure fabric model and the human body model.

Figure 6 is a linear regression curve of elastic pressure fabrics with different porosity and elastic modulus.

Figure 7 shows the porosity and Van's equivalent stress of the elastic compression fabric, as well as the multiple linear regression curves of the reduced scale and strain.

FIG. 8 is a schematic flow chart of the manufacturing method of the elastic pressure fabric of the present invention.

100: Elastic Pressure Fabric 200: patient body 210: Affected part

Claims (9)

An elastic pressure fabric is used to be worn on a patient's body and used to apply pressure to an affected part of the patient's body; Reduce the size, so that the elastic pressure fabric can be close to the surface of the patient's body and the affected part when it is worn on the patient's body, and generate tensile strain, so that the surface of the affected part is covered by the elastic pressure fabric driven to generate a balanced stress distributed along the contact surface of the affected part and the elastic pressure fabric and expanded outward from the center of the affected part; the elastic pressure fabric is woven with nylon fibers, and the elastic pressure the fabric has a porosity of 10% to 70%, the porosity of the elastic pressure fabric changing with the target value of the equilibrium stress the elastic pressure fabric is expected to act on the surface of the patient's body; the elasticity The pressure fabric is manufactured by the following methods: according to a stress information on the affected part surface of the patient's body, the target value of the equilibrium stress is determined; a human body model is established according to the size information of the patient's body , and adjust the human body model according to the predetermined reduction scale of the circumference of the elastic pressure fabric compared with the circumference of the corresponding part of the patient's body, and establish an elastic pressure fabric model; use the porosity of the elastic pressure fabric , the correlation equation with the strain generated by the elastic pressure fabric on the patient's body and the equilibrium stress acting on the surface of the patient's body, and the pore size of the elastic pressure fabric is calculated according to the target value of the equilibrium stress The elastic pressure fabric is woven using the elastic pressure fabric model and the porosity data of the elastic fabric. The elastic pressure fabric of claim 1, wherein the elastic The sexual modulus is between 2.5GPa and 1.0GPa. The elastic pressure fabric according to claim 1, wherein, in the correlation equation, the equilibrium stress of the elastic pressure fabric acting on the surface of the patient's body is obtained by analyzing the elastic pressure fabric acting on the surface of the patient through finite element analysis. The Fan's equivalent stress on the surface of the patient's body, the correlation equation is obtained by means of finite element analysis, and obtained by means of statistical analysis, with the porosity of the elastic pressure fabric and the strain of the elastic pressure fabric as independent variables, And the multivariate regression equation with the van's equivalent stress acting on the surface of the patient's body by the elastic pressure fabric as a dependent variable. The elastic pressure fabric according to claim 1, wherein the porosity of the area of the elastic pressure fabric corresponding to the affected part of the patient's body is different from the porosity of the rest of the elastic pressure fabric. A method for manufacturing an elastic pressure fabric, the elastic pressure fabric is woven with elastic fibers and has porosity, and the elastic pressure fabric is used to be worn on a patient's body to apply pressure to an affected part of the patient's body , and make the surface of the affected part generate a balanced stress distributed along the contact surface of the affected part and the elastic pressure fabric and expanded outward from the center position of the affected part; the elastic pressure fabric manufacturing method includes: establishing a human body model Steps: establishing a human body model according to the size information of the patient's body; stress analysis step of the affected part: calculating the target value of the equilibrium stress according to the stress information on the surface of the affected part of the patient's body; establishing an elastic pressure fabric model : Use the size information of the mannequin and adjust the size information of the mannequin with a predetermined reduction scale to obtain the size information of the elastic pressure fabric model, and use the elastic pressure fabric model Create an elastic pressure fabric model based on the size information of the type; elastic pressure fabric porosity calculation step: use the porosity of the elastic pressure fabric, and the strain generated by the elastic pressure fabric on the patient's body and acting on the patient The correlation equation of the equilibrium stress on the surface of the human body, and the porosity data of the elastic pressure fabric is calculated according to the target stress calculated in the stress analysis step of the affected part; and the weaving step: using the elastic pressure fabric model and the Porosity data of the elastic fabric from which the elastic pressure fabric is woven. The manufacturing method of elastic pressure fabric according to claim 5, wherein the porosity of the elastic pressure fabric is between 10% and 70%, and the elastic modulus is between 2.5GPa and 1.0GPa. The method for manufacturing an elastic pressure fabric according to claim 5, wherein, in the step of calculating the pores of the elastic pressure fabric, the stress acting on the surface of the patient's body by the elastic pressure fabric in the correlation equation is obtained through a finite element analysis method The Fan's equivalent stress of the elastic pressure fabric acting on the surface of the patient's body is obtained through analysis, and the correlation equation is obtained by means of finite element analysis and statistical analysis means based on the porosity of the elastic pressure fabric and the The strain of the elastic pressure fabric is the independent variable, and the multivariate regression equation takes the Van's equivalent stress of the elastic pressure fabric acting on the surface of the patient's body as the dependent variable. The manufacturing method of elastic pressure fabric according to claim 5, wherein, in the weaving step, the elastic pressure fabric is knitted by using numerically controlled weaving equipment. The elastic pressure fabric manufacturing method according to claim 5, wherein the step of establishing the human body model and the step of establishing the elastic pressure fabric model respectively include a meshing sub-step, and in the meshing sub-step, The human body model and the elastic pressure fabric model are meshed separately.

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