CN114432039A - Combined metal far infrared medical adhesive plaster - Google Patents
Combined metal far infrared medical adhesive plaster Download PDFInfo
- Publication number
- CN114432039A CN114432039A CN202011221514.1A CN202011221514A CN114432039A CN 114432039 A CN114432039 A CN 114432039A CN 202011221514 A CN202011221514 A CN 202011221514A CN 114432039 A CN114432039 A CN 114432039A
- Authority
- CN
- China
- Prior art keywords
- far infrared
- patch
- fibers
- layer
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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- 239000011505 plaster Substances 0.000 title description 2
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- 239000000758 substrate Substances 0.000 claims abstract description 35
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive bandages or dressings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F2013/00361—Plasters
- A61F2013/00544—Plasters form or structure
- A61F2013/00582—Properties of backing
- A61F2013/006—Elastic modulus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F2013/00361—Plasters
- A61F2013/00902—Plasters containing means
- A61F2013/00919—Plasters containing means for physical therapy, e.g. cold or magnetic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0659—Radiation therapy using light characterised by the wavelength of light used infrared
- A61N2005/066—Radiation therapy using light characterised by the wavelength of light used infrared far infrared
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Radiation-Therapy Devices (AREA)
- Medicinal Preparation (AREA)
Abstract
The invention provides a patch, which comprises: a base layer; and an adhesive layer formed on a surface of the substrate layer, the adhesive layer having a wave pattern such that an area of the surface of the substrate layer covered by the adhesive of the adhesive layer occupies less than 95% of an entire area of the surface, wherein the adhesive sheet has an elongation of at least 120% in both a mechanical direction and a vertical mechanical direction.
Description
Technical Field
The present invention relates to a patch having excellent extensibility in both the mechanical direction and the vertical mechanical direction, and more particularly to a composite metal far infrared medical patch having excellent extensibility in both the mechanical direction and the vertical mechanical direction.
Background
In the field of sports medical treatment, a muscular energy patch (also called intramuscular effective patch) is an elastic patch with elasticity and air permeability, and when the muscular energy patch is attached to a human body, the elastic patch can drive the soft tissues of the human body such as fascia and muscle, thereby generating unique mechanical action and physiological effect, and further having the effects of supporting and protecting the injured part, relieving pain, improving action and the like.
However, due to the technical bottleneck of the sizing technique of the backing layer of the patch, the existing patch has extensibility only in a single direction, for example, only in the machine direction (machine direction) or only in the cross-machine direction (cross-machine direction), and there are many limitations in use.
Disclosure of Invention
The invention provides a patch, which has four-side elasticity which cannot be provided by the existing patch, namely, the patch can extend in the mechanical direction and the vertical mechanical direction and has more elasticity in application. In addition, the patch of the present invention may further include far infrared fibers to emit far infrared rays, which can increase the blood flow volume and blood flow rate of a user, provide effects of promoting blood circulation and relieving discomfort of an affected part, and may further include an antibacterial material to provide an antibacterial effect. Accordingly, the present invention relates to the following objects.
One object of the present invention is to provide a patch, which includes:
a base layer (base layer); and
an adhesive layer (adhesive layer) formed on a surface of the substrate layer, the adhesive layer having a wave pattern such that an area of the surface of the substrate layer covered by the adhesive of the adhesive layer occupies less than 95% of an entire area of the surface,
wherein the patch has an elongation (elongation) of at least 120% in both the machine direction and the perpendicular machine direction.
In some embodiments of the present invention, the patch has an elongation of 120% to 300% in both the machine direction and the cross-machine direction.
In some embodiments of the present invention, the surface of the substrate layer is covered by the adhesive of the adhesive layer in an area of 50% to 80% of the entire area of the surface.
In some embodiments of the present invention, the surface of the substrate layer has an antimicrobial material, and the antimicrobial material is selected from the group consisting of: zinc oxide, titanium dioxide, silver oxide, and combinations thereof.
In some embodiments of the invention, the substrate layer is a far infrared substrate layer, such as a fabric containing far infrared fibers.
In some embodiments of the present invention, the far infrared fibers contain the following elements: titanium (Ti), germanium (Ge), zinc (Zn), aluminum (Al), and magnesium (Mg), and does not contain the following elements: scandium (Sc), vanadium (V), chromium (Cr), cobalt (Co), and antimony (Sb).
In some embodiments of the present invention, the far infrared fibers are included in an amount of more than 0% to 50% based on the total number of the fibers of the far infrared base layer.
In some embodiments of the invention, the base layer comprises a fabric of elastic fibers in both the warp and weft directions, and the number of elastic fibers in the warp direction is greater than 0% to 12% based on the total number of fibers in the warp direction and the number of elastic fibers in the weft direction is greater than 0% to 12% based on the total number of fibers in the weft direction.
In some embodiments of the invention, the elastic fibers are selected from one or more of polyester fibers and polyurethane (polyurethane) fibers.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, some embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a schematic view of a pattern of an adhesive layer according to an embodiment of the patch of the present invention;
FIG. 2 is a schematic view of a sizing apparatus specially designed for preparing the patch of the present invention;
FIG. 3 is a graph of the results of a subject's assessment of pain perception;
FIG. 4 is a graph showing the results of evaluation of whether the numbness in the hands and feet of a subject causes trouble;
FIG. 5 is a chart showing the results of an evaluation of whether various physiological conditions of a subject are disturbing.
Description of the reference numerals
111: coating wheel
13: scraper wheel
15: base layer
111: and (4) a groove.
Detailed Description
Some embodiments according to the present invention will be described in more detail below with reference to the attached drawings; this invention may, however, be embodied in many different forms without departing from the spirit thereof, and should not be construed as limited to the embodiments set forth herein.
In the drawings, the size of various objects and regions may be exaggerated for clarity and are not drawn on scale.
As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the content clearly dictates otherwise.
As used herein, the term "elongation" refers to the percentage of the length of the patch after stretching to the length of the patch before stretching. For example, if the length of the patch before stretching in the machine direction is 10 cm and the length of the patch after stretching in the machine direction is 15 cm, the elongation of the patch in the machine direction is 150%.
As used herein, the term "elastic fiber" refers to a fiber having an elongation of at least 125%.
Compared with the prior art, the adhesive layer with the wavy patterns is formed on the surface of the base layer by the adhesive cloth of the invention through a special gluing process, so that the adhesive cloth has excellent elongation in the mechanical direction and the vertical mechanical direction. In addition, the base layer of the patch of the present invention may be a far infrared base layer including far infrared fibers, thereby allowing the patch to emit far infrared rays, providing effects of promoting blood circulation and relieving discomfort of an affected part. In some embodiments of the present invention, the patch of the present invention is a composite metal far infrared patch for medical use. The structure and preparation of the patch of the present invention will be described in detail below.
1. Sticking cloth
The patch of the invention comprises a substrate layer and an adhesive layer formed on one surface of the substrate layer. The patch of the present invention has an elongation of at least 120% in both the machine direction and the perpendicular machine direction, preferably 120% to 300% in both the machine direction and the perpendicular machine direction, such as 120%, 125%, 130%, 135%, 140%, 145%, 150%, 155%, 160%, 165%, 170%, 175%, 180%, 185%, 190%, 195%, 200%, 205%, 210%, 215%, 220%, 225%, 230%, 235%, 240%, 245%, 250%, 255%, 260%, 265%, 270%, 275%, 280%, 285%, 290%, 295%, or 300%, or a range between any two of the above values. As explained above, the elongation is the percentage of the length of the patch after stretching to the length of the patch before stretching.
1.1. Base layer
In the patch of the present invention, the base layer includes the elastic fiber, so that the prepared patch can have more excellent elongation. In some embodiments of the present invention, the substrate layer is a far infrared substrate layer, which includes far infrared fibers. Herein, the patch including the far infrared ray basal layer is also called a far infrared ray patch.
The substrate layer of the present invention may be woven or non-woven and may be prepared using weaving (or machine) or non-woven forming methods known in the art. Such weaving methods include, but are not limited to, knitting (knotting method) and weaving (knitting method). The nonwoven fabric is formed by methods including, but not limited to, spunbond (spin-bond method), hydroentangling (water needle method), needlepunch (needle punch method), chemical bond (chemical bond method), and thermal bond (thermal bond method). In some embodiments of the present invention, the substrate layer is a far infrared substrate layer, and is a fabric obtained by blending far infrared fibers, elastic fibers and general fibers, which are fibers having no far infrared radiation function and no elasticity, by a knitting method.
1.1.1. Elastic fiber
Herein, the elastic fiber means a synthetic fiber having high elongation at break and high elastic recovery ability. Specifically, the elastic fiber is one or more selected from polyester fiber and polyurethane fiber. The polyester fibers include, but are not limited to, thermoplastic polyester elastomers (TPEE). In the following examples, Spandex (a highly elastic fiber of DuPont, USA) and TPEE were used.
The base layer of the patch of the present invention is a fabric that includes elastic fibers in both the warp and weft directions, also referred to herein as the warp and weft elastic fibers, respectively. In some embodiments of the invention, the number of warp elastic fibers (i.e., fibers having elasticity) is greater than 0% to 12%, e.g., 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5%, or 12%, or ranges between any two of the above, based on the total number of warp fibers. In some embodiments of the invention, the number of weft elastic fibers (i.e., fibers having elasticity) is greater than 0% to 12% of the total number of weft fibers, e.g., 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5%, or 12%, or ranges between any two of the above values. If the patch includes more than 12% of the number of warp-wise elastic fibers and weft-wise elastic fibers, comfort and breathability may be affected.
1.1.2. Far infrared fiber
The far infrared fiber is a fiber capable of radiating far infrared rays, and comprises a polymer matrix and far infrared fillers dispersed in the polymer matrix. In some embodiments of the present invention, the far infrared ray filler contains the following elements: titanium (Ti), germanium (Ge), zinc (Zn), aluminum (Al), and magnesium (Mg), and the far infrared ray filler preferably does not contain the following elements: scandium (Sc), vanadium (V), chromium (Cr), cobalt (Co), and antimony (Sb). The far infrared ray filling material according to the above element composition can radiate far infrared rays in a wavelength range most suitable for a human body, that is, far infrared rays having a wavelength of 2 to 22 micrometers, particularly far infrared rays having a wavelength of 4 to 14 micrometers, including 6 to 6.5 micrometers, among others.
In addition to the above elements, the far infrared ray filling material may further contain other elements emitting far infrared rays, such as one or more elements selected from the following group: silicon (Si), copper (Cu), calcium (Ca), iron (Fe), barium (Ba), potassium (K), sodium (Na), manganese (Mn), nickel (Ni), and gallium (Ga).
The polymer matrix of the far infrared ray fiber is not particularly limited, and examples thereof include one or more selected from the following group: polyesters (polyester, such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT) and TPEE), Polyurethane (PU), polyvinyl chloride (poly (vinyl chloride), PVC), polypropylene (PP), Polyamide (PA), amine group-containing polymers (such as Polyethyleneimine (PEI)), and silicone. In some embodiments of the invention, the polymer matrix of the far infrared fibers comprises TPEE.
The external shape of the far infrared fibers is not particularly limited. For example, the cross section of the far infrared fiber perpendicular to the long axis thereof may be circular, oval, triangular, quadrangular or more, X-shaped, Y-shaped, or cross-shaped, but not limited thereto. In addition, the far infrared fiber can be a hollow fiber to obtain the effects of light weight and good elasticity.
The far infrared fibers can be prepared by a conventional synthetic fiber preparation method using a polymer matrix, for example, a method of preparing far infrared fibers by a full granulation method, a masterbatch method, an injection method, or the like, wherein the far infrared filler is provided in the form of an oxide, a carbide, a carbon and oxygen-containing compound, or an amine group-containing compound containing the above-mentioned far infrared-emitting element.
In the far infrared patch of the present invention, the content of the far infrared fibers (i.e., the fibers having the function of radiating far infrared rays) is more than 0% to 50% based on the total number of the fibers of the far infrared base layer, for example, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, or 50%, or ranges between any two of the above values, but the present invention is not limited thereto.
As explained above, the far infrared ray fiber of the far infrared ray base layer of the present invention can also use a material having elasticity such as Polyurethane (PU) and thermoplastic polyester elastomer (TPEE) as a polymer matrix of the fiber, and thus, the far infrared ray fiber can also play a role of an elastic fiber.
1.1.3. General fibres
Besides the far infrared fibers and the elastic fibers, the patch of the present invention may further include general fibers having no function of emitting far infrared rays and having no elasticity. Examples of typical fibers include, but are not limited to, cotton fibers, polyester fibers, PU fibers, PVC fibers, PP fibers, PA fibers, and silicone fibers. In some embodiments of the present invention, the substrate layer is a far infrared substrate layer, and the content of the fiber is generally greater than 0% to 52% of the total number of the fiber of the far infrared substrate layer, such as 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, 51%, or 52%, or ranges between any two of the above values, but the present invention is not limited thereto.
1.1.4. Antibacterial material
The base layer may optionally include an antimicrobial material to provide an antimicrobial effect. As used herein, an antimicrobial material refers to a material having the function of killing or inhibiting the growth of microorganisms. Examples of the antibacterial material include, but are not limited to, zinc oxide, titanium dioxide, and silver oxide. The aforementioned antibacterial materials may be used alone or in any combination thereof. In some embodiments of the invention, the antimicrobial material is attached to the fiber surface of the substrate layer by post-processing and preferably has a nanoparticle size, for example, the average particle size may be 10 nm to 100 microns. The post-processing modes comprise precipitation, spraying, sol-gel, thermal evaporation, vacuum sputtering and the like. The post-processing is preferably vacuum sputtering, and during the sputtering process, a blocking sheet is preferably coated on the surface of the substrate layer away from the target material, so as to facilitate the adhesion of more antibacterial materials on the surface of the substrate layer. Examples of the barrier sheet include, but are not limited to, plastic sheets, paper, and cloth.
1.2. Adhesive layer
The patch of the present invention includes an adhesive layer formed on one surface of a base layer. The adhesive layer is formed by coating an adhesive material on a surface of the substrate layer. Examples of the adhesive material include, but are not limited to, natural rubber, synthetic isoprene rubber, styrene-butadiene rubber (SBR), styrene-isoprene-styrene block copolymer (styrene-isoprene-styrene (sis) block copolymer), styrene-butadiene-styrene block copolymer (styrene-butadiene-styrene (sbs) block copolymer), polyisobutylene, styrene-ethylene-butylene-styrene copolymer (styrene-ethylene-butylene-styrene (sebs) copolymer), styrene-ethylene-propylene-styrene copolymer (styrene-ethylene-propylene-styrene (seps) copolymer), (meth) acrylate-based copolymer, silicone rubber, silicone resin, dimethylsiloxane, diphenylsiloxane, polyvinyl ether, and the like, Polyvinyl esters, ethylene-vinyl acetate copolymers (EVA) copolymers), and polyesters. In the following examples, (meth) acrylate copolymers (e.g., acrylic rubber) or silicone resins are used.
The invention coats the viscose on the surface of the substrate layer by a special viscose coating method, so that the formed adhesive tape has excellent extensibility in the mechanical direction and the vertical mechanical direction, and compared with the existing adhesive tape which has extensibility only in the mechanical direction or the vertical mechanical direction.
First, as known to those skilled in the art, the conventional patch usually covers the adhesive layer completely on the surface of the bottom layer of the patch, i.e., the area of the surface of the bottom layer of the patch covered by the adhesive of the adhesive layer occupies 100% of the whole area of the surface. Thus, even if the conventional patch contains elastic fibers, extensibility is greatly limited. Unlike the conventional patch, the adhesive layer of the patch of the present invention has a wavy pattern, as shown in fig. 1, and the area of the surface of the substrate layer to which the adhesive layer is attached is covered by the adhesive of the adhesive layer, which is only 95% or less of the entire area of the surface. In some embodiments of the present invention, the area of the surface of the substrate layer to which the adhesive layer is attached covered by the adhesive of the adhesive layer accounts for 50% to 80% of the entire area of the surface, such as 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, or 79% or 80%, or ranges between any two of the above values.
In addition, in the patch of the present invention, the adhesive layer of the base layer having the wave pattern is formed by a modified comma coating process. FIG. 2 is a schematic view of a specially designed gluing device for preparing the patch of the present invention, the gluing device includes a coating wheel 11 and a scraper wheel 13, the coating wheel 11 is used for coating the surface of the substrate layer 15 with the adhesive and has a groove 111, and the scraper wheel 13 is used for scraping the excess adhesive in the groove 111. Unlike the conventional comma coating process, in the improved comma coating process of the present invention, the coating wheel 11 and the doctor wheel 13 synchronously reciprocate in a moving direction perpendicular to the conveying direction of the substrate layer 15 with the center point of the substrate layer 15 as the center, wherein the width of the groove 111 is 1 mm to 6 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, or 6 mm; the moving frequency of the coating wheel 11 and the scraper wheel 13 is 0.5 mm/min (mm/min) to 0.6 mm/min; the movement amplitude of the coating wheel 11 and the scraper wheel 13 is set to ensure that the maximum displacement of the centers of the coating wheel 11 and the scraper wheel 13 relative to the center of the periodic reciprocating movement is 4-8 mm; and the conveying speed of the base layer 15 is 120 meters/hour (m/hr) to 135 meters/hour. Through the improved comma coating process, the patch of the invention not only has excellent elongation in the mechanical direction, but also in the direction vertical to the mechanical direction. In some embodiments of the present invention, the width of the coating wheel 11 is preferably greater than the width of the substrate layer, for example, 3 cm greater than the width of the substrate layer, so as to avoid waste of material.
2. Examples of the embodiments
2.1. Preparation of far infrared adhesive tape
Far infrared fibers, elastic fibers and general fibers are mixed into a fabric as a far infrared basal layer by utilizing a knitting method, wherein the far infrared fibers account for 12 percent of the total fiber content of the fabric, the number of the warp elastic fibers is 4 percent based on the total number of the warp fibers, and the number of the weft elastic fibers is 4 percent based on the total number of the weft fibers.
Forming an adhesive layer with a wave pattern on a far infrared basal layer by utilizing an improved comma type coating process, wherein the adhesive layer comprises acrylic adhesive, the width of a groove on a coating wheel is 2.5 mm, the moving frequency of the coating wheel and a scraper wheel is 0.54 mm/min, the moving amplitude of the coating wheel and the scraper wheel ensures that the maximum displacement of the centers of the coating wheel and the scraper wheel relative to the center of periodic reciprocating movement is 6 mm, and the conveying speed of the far infrared basal layer is 128 m/h, thereby preparing the far infrared adhesive cloth.
2.2. Elasticity test
2.2.1. Elongation at longitudinal cut
Herein, the longitudinal cutting means cutting in parallel to the mechanical direction of the far infrared patch of the present invention so that the longitudinal direction is the length direction of the far infrared patch. The far infrared patch of the invention after longitudinal cutting is a rectangle with the length of 10 cm and the width of 3 cm.
First, the elongation of the longitudinally cut far infrared ray patch in the length direction was measured. Taking a longitudinally cut far infrared patch, fixing one end of the far infrared patch along the length direction, and applying a force of 600 g or 1000 g to the other end to obtain the far infrared patch stretched by the force of 600 g, wherein the length of the far infrared patch stretched by the force of 1000 g is 18 cm, and the length of the far infrared patch stretched by the force of 1000 g is 19.4 cm. The calculation shows that the elongation of the longitudinal cutting patch in the length direction is 180% under the force of 600 g and 194% under the force of 1000 g.
Thereafter, the elongation of the longitudinally cut far infrared patch in the width direction was measured. Taking a longitudinally cut far infrared patch, fixing one end of the far infrared patch in the width direction, and applying 600 g or 1000 g of force to the other end to obtain the far infrared patch stretched by 600 g of force, wherein the width of the far infrared patch is 5.6 cm, and the width of the far infrared patch stretched by 1000 g of force is 6 cm. It was calculated that the elongation of the longitudinal cut patch in the width direction by the force of 600 g was 187% and the elongation by the force of 1000 g was 200%.
2.2.2. Elongation of transverse cut
Herein, the transverse cutting means cutting perpendicular to the mechanical direction of the far infrared patch of the present invention so that the transverse direction is the length direction of the far infrared patch. The far infrared patch of the invention after being transversely cut is a rectangle with the length of 10 cm and the width of 3 cm.
First, the elongation of the transversely cut far infrared ray patch in the length direction was measured. Taking a transversely cut far infrared ray patch, fixing one end of the far infrared ray patch along the length direction, and applying a 600 g or 1000 g force to the other end to obtain the far infrared ray patch stretched by the 600 g force, wherein the length of the far infrared ray patch stretched by the 1000 g force is 15.2 cm, and the length of the far infrared ray patch stretched by the 1000 g force is 16.5 cm. It was calculated that the elongation of the cross cut patch in the longitudinal direction by the force of 600 g was 152% and the elongation by the force of 1000 g was 165%.
Then, the elongation of the transversely cut far infrared patch in the width direction was measured. Taking a transversely cut far infrared patch, fixing one end of the far infrared patch in the width direction, and applying 600 g or 1000 g of force to the other end to obtain the far infrared patch stretched by 600 g of force, wherein the width of the far infrared patch stretched by 1000 g of force is 4.6 cm, and the width of the far infrared patch stretched by 1000 g of force is 5 cm. It was calculated that the elongation of the cross cut patch in the width direction by the force of 600 g was 153% and the elongation by the force of 1000 g was 167%.
2.3. Efficacy test
2.3.1. Test method
In order to understand the medical effect of the far infrared patch of the present invention, 66 subjects were randomly divided into a test group or a control group, wherein 30 men and 36 women were selected among the 66 subjects, and the age distribution of the 66 subjects was as shown in table 1 below. The pain evaluation and the life quality evaluation were performed on 66 subjects, and then the test group was issued one roll of the far infrared ray patch prepared in the above example to each subject, and the clinical trial caretaker or coordinator communicated the use method and safety precautions. The test subjects in the control group did not give far infrared ray patches. After one week, 66 subjects were subjected to pain assessment and quality of life assessment, and the assessment results were plotted in fig. 3 to 5.
Table 1: age distribution of subjects
| Age zone | Test group | Control group | Sum of |
| 26 to 30 years old | 1 | 1 | 2 |
| Age 31 to 35 years old | 1 | 1 | 2 |
| Age 46 to 50 years old | 2 | 1 | 3 |
| Age 51 to 55 years old | 3 | 4 | 7 |
| Age 56 to 60 years old | 8 | 7 | 15 |
| Age 61-65 | 4 | 4 | 8 |
| Age 66 to 70 | 4 | 2 | 6 |
| 71 to 75 years old | 7 | 7 | 14 |
| Age 76 to 80 years old | 4 | 5 | 9 |
| Sum of | 34 | 32 | 66 |
2.3.2. Data analysis
Fig. 3 is a graph showing the results of evaluation of pain perception by a subject, in which the degree of pain perceived by the subject is evaluated in a numerical value of 0 to 10, with a larger numerical value indicating a higher degree of pain, 0 indicating no pain at all, and 10 indicating the most pain. As can be seen from FIG. 3, the test subjects experienced a significant reduction in the degree of pain after one week of use of the far infrared ray patch of the present invention; in comparison, the subjects in the control group experienced an increased level of pain.
Fig. 4 is a graph showing the evaluation results of whether the numbness in the hands and feet of the subject causes the trouble, wherein the degree of the trouble caused by the numbness in the hands and feet of the subject is evaluated by a value of 1 to 5, the larger the value is, the higher the degree of the trouble is, 1 represents no trouble at all, and 5 represents serious trouble. As can be seen from FIG. 4, the degree of trouble caused by the hand and foot numbness feeling after the test subjects used the far infrared ray patch of the present invention for one week was remarkably reduced; in contrast, the subjects in the control group tended to feel more bothersome due to the tingling sensation in the hands and feet.
Fig. 5 is a chart of the results of an assessment of whether or not various physiological conditions of a subject are disturbing, wherein the following 8 physiological conditions are assessed: (1) muscle soreness, (2) chest pain, (3) cramping, (4) skin itching, (5) dry skin, (6) numbness in the hands and feet, (7) nausea or stomach discomfort, and (8) venous fistula problems, and the degree of the subject's discomfort due to the aforementioned physiological condition was evaluated by a value of 1 to 5, with a larger value indicating a higher degree of the discomfort, 1 indicating no discomfort at all, 5 indicating severe discomfort, and the total of 8 items amounting to 40 points. As can be seen from FIG. 5, the degree of trouble caused by physiological conditions was remarkably reduced after the test subjects used the far infrared ray patch of the present invention for one week; in contrast, the subjects in the control group tended to be confused by physiological conditions to an increasing extent.
As can be seen from FIGS. 3 to 5, the subjects in the test group experienced a significant reduction in the degree of pain and the degree of disturbance due to the physiological condition after using the far infrared ray patch of the present invention for one week.
The above embodiments are merely illustrative of the principles and effects of the present invention, and illustrate the technical features of the present invention, but do not limit the scope of the present invention. Any changes or arrangements which can be easily made by those skilled in the art without departing from the technical principle and spirit of the present invention shall fall within the scope of the present invention. Accordingly, the scope of the invention is as set forth in the following claims.
Claims (11)
1. A combined type metal far infrared medical patch is characterized by comprising:
a base layer; and
an adhesive layer formed on a surface of the substrate layer, the adhesive layer having a wave pattern such that an area of the surface of the substrate layer covered by the adhesive of the adhesive layer occupies less than 95% of an entire area of the surface,
wherein, the sticking cloth has an elongation of at least 120% in the mechanical direction and the vertical mechanical direction.
2. The composite metal far infrared medical patch as claimed in claim 1, wherein the patch has an elongation of 120% to 300% in both the mechanical direction and the vertical mechanical direction.
3. The composite metal far infrared medical patch as claimed in claim 1, wherein the surface of the base layer is covered with the adhesive of the adhesive layer in an area of 50% to 80% of the entire area of the surface.
4. The composite metal far infrared medical patch as claimed in claim 1, wherein the surface of the base layer has an antibacterial material.
5. The composite metal far infrared medical patch as claimed in claim 4, wherein the antibacterial material is selected from the group consisting of: zinc oxide, titanium dioxide, silver oxide, and combinations thereof.
6. The patch as claimed in any one of claims 1 to 5, wherein the substrate layer is a far infrared substrate layer.
7. The composite metal far infrared medical patch as claimed in claim 6, wherein the far infrared base layer is a fabric containing far infrared fibers.
8. The patch of claim 7, wherein the far infrared fibers comprise the following elements: titanium, germanium, zinc, aluminum, and magnesium, and does not contain the following elements: scandium, vanadium, chromium, cobalt, and antimony.
9. The patch of claim 7, wherein the far infrared fibers are contained in an amount of more than 0% to 50% based on the total number of the far infrared base layer.
10. The composite metal far infrared medical patch as claimed in any one of claims 1 to 5, wherein the substrate layer comprises a fabric of elastic fibers in both the warp and weft directions, and the number of the elastic fibers in the warp direction is greater than 0% to 12% based on the total number of the fibers in the warp direction, and the number of the elastic fibers in the weft direction is greater than 0% to 12% based on the total number of the fibers in the weft direction.
11. The patch of claim 10, wherein the elastic fiber is one or more selected from the group consisting of polyester fiber and polyurethane fiber.
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