WO2016064199A1 - Implant for improving wrinkles - Google Patents

Implant for improving wrinkles Download PDF

Info

Publication number
WO2016064199A1
WO2016064199A1 PCT/KR2015/011163 KR2015011163W WO2016064199A1 WO 2016064199 A1 WO2016064199 A1 WO 2016064199A1 KR 2015011163 W KR2015011163 W KR 2015011163W WO 2016064199 A1 WO2016064199 A1 WO 2016064199A1
Authority
WO
WIPO (PCT)
Prior art keywords
implant
wire
pva
wrinkle improvement
dry
Prior art date
Application number
PCT/KR2015/011163
Other languages
French (fr)
Korean (ko)
Inventor
이훈범
박문서
Original Assignee
가톨릭관동대학교산학협력단
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 가톨릭관동대학교산학협력단 filed Critical 가톨릭관동대학교산학협력단
Publication of WO2016064199A1 publication Critical patent/WO2016064199A1/en

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/0059Cosmetic or alloplastic implants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/14Macromolecular materials
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/52Hydrogels or hydrocolloids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/54Biologically active materials, e.g. therapeutic substances

Definitions

  • the present invention relates to a medical implant for improving wrinkles, and relates to a implant having human suitability for improving wrinkles and the like due to aging.
  • implants, fillers, and the like may be used to aesthetically improve the shape of the chest that may be needed after tumor removal, and implants, fillers, or botox, etc., may be used to improve wrinkles and the like.
  • wrinkles may occur due to impressions or frequent laughter
  • such wrinkles are used botox or filler depending on the state, shape and depth.
  • the symptoms may be alleviated by using botox to reduce muscles.
  • the wrinkles may be improved by lifting or inserting fillers in addition to the botox procedure.
  • the present invention provides an implant for improving wrinkles that can be maintained permanently or semi-permanently while having good body compatibility.
  • the present invention provides an implant for wrinkle improvement that is easy to operate.
  • the present invention provides a wrinkle improvement implant that is easy to calculate the volume or cross-sectional area of the implant for wrinkle improvement.
  • the present invention provides a wrinkle-improving implant that is easy to maintain its original shape during storage or surgery.
  • the present invention provides a implant for improving wrinkles that can minimize the side effects caused by infection of pathogens even after the procedure using the implant.
  • the wrinkle-improving implant according to the present invention is formed in a wire shape, and includes a dry replacer which is compressed and dehydrated condensed at a larger shrinkage rate than a shrinkage rate due to simple dehydration condensation from a hydrogel state. It absorbs moisture and recovers the hydrogel state before compression.
  • the dry substitute may be formed of at least one material of polyvinyl alcohol (PVA) and polyvinyle acetate (PVAc).
  • PVA polyvinyl alcohol
  • PVAc polyvinyle acetate
  • At least one coating layer having any one of hydrophilic and hydrophobic properties may be formed on an outer surface of the dry substitute.
  • the coating layer may include at least one component of chitosan, dextran, calcium channel blockers, and metal ion blocking agents.
  • PVC polyvinyl chloride
  • PET polyethylene terephthalate
  • nylon nylon
  • polyurethane polyurethanes
  • Pebax polyether block amide
  • the outer surface of the dry substitute is a cat (cat gut), polydioxanone (Polydioxanone, PDS), polyglactin (Polyglactin, Vicryl), polyglutamic acid (PGA), polylactic acid (Polylactic acid, PLA), Poly (Lactic-co-Glycolic) Acid (PLGA) absorbent material, polyamide (nylon), polypropylene (polypropylene, prolene), polyphenyl ether (PPE), polyester ( At least one layer may be formed of a coating layer formed of any one of a polyester and a non-absorbent material of polyethylene.
  • At least one of the dry substitute and the coating layer may further include an antimicrobial material.
  • the dry substitute may further include a core wire in the concentric axis direction.
  • the core wire is cat (cat gut), polydioxanone (Polydioxanone, PDS), polyglutamic acid (Polyglutamic Acid, PGA), polylactic acid (Polylactic acid, PLA), Poly (Lactic-co-Glycolic Absorbent material of Polyid (PLGA), Polyglactin, Vicryl, Polyamide, Nylon, Polypropylene, Prolene, Polyester, Polyphenylether (PPE), It may be formed of any one of non-absorbent materials of polyethylene (Polyetylene).
  • At least one of the dry substitute and the core wire may further include an antimicrobial material.
  • the dry substitute may be used in a state of overlapping at least one corresponding to the depth and width of the wrinkles of the subject.
  • dry substitutes may be compressed and dehydrated condensed in a state where two or more wire-like dry substitutes are twisted.
  • a method for producing an implant for improving wrinkles providing a water-soluble synthetic resin formed in a wire shape; A softening step of softening the water-soluble synthetic resin through hydrolysis; Compressing the softened water-soluble synthetic resin; And a dehydration condensation step of dehydrating or drying the compressed water-soluble synthetic resin.
  • the providing step may further include preparing a PVA sponge wire from PVA or PVAc.
  • the PVA sponge wire manufacturing step to obtain a PVA aqueous solution by mixing PVA and water; Adding and stirring a pore-forming agent to the PVA aqueous solution; And acetalizing by heating after the stirring step.
  • the PVA sponge wire manufacturing step hydrolyzing PVAc to obtain a PVA aqueous solution; Adding and stirring a pore-forming agent to the PVA aqueous solution; And acetalizing by heating after the stirring step.
  • the auxiliary body for insertion of the wrinkle-improving implant includes a needle body formed in a wire shape having a predetermined length; One end of the body is formed with a first hook portion for hanging the blade and the wire-like wrinkle improvement implant.
  • the other end of the needle body may be formed with a second hook portion for hanging the implant for improving the wire-like wrinkles.
  • the effect of improving wrinkles can be maintained permanently or semi-permanently while having good body compatibility.
  • the volume or cross-sectional area of the prosthesis can be easily calculated to facilitate surgery, and at the same time, the ease of surgery can be increased by using a wire-shaped prosthesis having a low cross-sectional area and excellent shape retention.
  • the present invention it is easy to maintain the original shape in a compressed state at the time of storage or surgery by supplementing the characteristics of the compressed implant which naturally expands by absorbing moisture in the air.
  • FIG. 1 is a schematic diagram showing a wrinkle improvement implant according to an embodiment of the present invention.
  • FIG. 2 is a flowchart illustrating a method for manufacturing an implant for improving wrinkles according to an exemplary embodiment.
  • 3 (a) to 3 (c) are cross-sectional views illustrating implants for improving wrinkles according to different embodiments, respectively.
  • Figure 4 is a schematic diagram showing the implant for improving wrinkles according to Figure 3 (b).
  • Figure 5 is a schematic diagram showing the wrinkle improvement implant according to Figure 3 (c).
  • FIG. 6 is a cross-sectional view showing a wrinkle-improving implant according to another embodiment.
  • FIG. 7 is a schematic diagram illustrating a compression process of an implant for improving wrinkles according to an embodiment.
  • FIG. 8 is a schematic view showing an example of a method of using an implant for improving wrinkles.
  • FIG. 9 is a schematic diagram showing an auxiliary body (insertion needle) for inserting an implant for improving wrinkles according to an embodiment.
  • 11 to 15 are schematic views sequentially showing a method of inserting an implant for improving wrinkles using an insertion needle.
  • 16 and 17 are schematic diagrams showing another method of inserting an implant for improving wrinkles using an insertion needle.
  • FIGS. 2 and 3 1 is a schematic diagram showing a wrinkle improvement implant according to an embodiment of the present invention.
  • 2 is a flowchart illustrating a method for manufacturing an implant for improving wrinkles according to an exemplary embodiment.
  • the wire wrinkle improvement implant according to this embodiment (10, hereinafter referred to as “wrinkle improvement implant”) is formed in a thin wire (wire) or thread type having a predetermined overall length as shown in FIG. do.
  • the wrinkle improvement implant 10 is formed of a material that can be compressed in the direction of the central axis and the appearance restored. That is, the wrinkle improvement implant 10 is formed of xerogel, and the dry substitute may be formed using at least one of polyvinyl alcohol (PVA) and polyvinyle acetate (PVAc).
  • PVA polyvinyl alcohol
  • PVAc polyvinyle acetate
  • the wrinkle improvement implant 10 is made of xerogel and then reacts with moisture or artificially provided moisture in the human body to exist as a hydrogel.
  • hydrogel is applied when the material is already swollen in water. Dried gels are called xerogels or dry gels. During the drying process, moisture evaporates from the gel, and the surface tension causes the gel to crush itself. Thus the gel shrinks to a very small fraction of swollen size. If moisture is removed without disruption of the polymer structure by lyophilization or extraction with organic solvents, then the remaining material has an extremely light weight with high porosity. Such dehydrogenated hydrogels are called xerogels or sponges.
  • the wrinkle-improving implant at the manufacturing stage or the wrinkle-implanting implant which is not swelled and dried is particularly referred to as dry replacement, and the wrinkle-improving implant in the state of being swollen by moisture is particularly called a hydrogel.
  • polyvinyl alcohol (hereinafter referred to as PVA) is a hydrophilic polymer synthetic resin obtained through hydrolysis of polyvinyl acetate (hereinafter referred to as PVAc).
  • Crosslinking of PVA occurs through chemical and physical methods. In chemical crosslinking, an acidic crosslinking agent binds to a hydroxyl group and an aldehyde solution of PVA to form a gel. Representative methods of physical crosslinking are freeze-thawing. Hydrogels prepared by the freeze thawing method have little toxicity, contain no impurities, and contain about 80 to 90% water. In addition, since it does not use a crosslinking agent, it can be used as an attractive biomedical hydrogel.
  • the wire-type wrinkle improvement implant according to the present embodiment may be manufactured through a total of four steps.
  • a water-soluble synthetic resin that is, PVA or PVAc is provided to prepare a PVA dry substitute of wire type (S10).
  • PVA dry substitutes are characterized by excellent elasticity and very softness in wet conditions and hardness in dried conditions, which are not only used for cleaning rollers for semiconductor wafers, glass for TFT LCDs, and for manufacturing rollers. It is also used as a material for medical gauze, beauty towels, sports towels, kitchen scaffolding mats, and microbial tins.
  • PVA a raw material for PVA dry replacement
  • PVA dry substitute is manufactured from the PVA as a raw material (S10). After mixing PVA and water in a certain ratio, the mixture was heated to obtain a PVA aqueous solution, followed by adding corn starch as a pore-forming agent, adding formalin and stirring, and then adding sulfuric acid (H 2 SO 4) as a catalyst. Then, it is injected into a mold prepared in advance, heated and acetalized to form a PVA dry substitute. The acetalized PVA dry substitute is extracted from the mold and thoroughly washed, and then cut and processed according to specifications to produce a product.
  • S10 raw material
  • H 2 SO 4 sulfuric acid
  • the PVA sponge manufacturing method has a problem in that even though the use regulation of harmful substances is spread, formalin or paraformaldehyde, which is a use restriction substance, must be used.
  • PVA dry substitutes using the following methods to avoid the use of environmentally regulated materials and to improve the environment of the manufacturing workplace.
  • the PVA resin of 16-21% of the water weight is weighed and mixed with water, and then heated to a temperature of 30 ° C. or higher to obtain a PVA aqueous solution, depending on the proportion of pores to form corn starch as a pore-forming agent in the PVA aqueous solution.
  • hexamethylene tetramine (28-35% of hexamethylene tetramine) by weight of water is added to water and heated to a temperature of 40 ° C. or more to obtain an aqueous solution of hexamethylene tetramine.
  • the manufactured dry substitute is softened again for compression.
  • the softening step of the present dry substitute is simply necessary to perform a subsequent compression (S30) step, and the same step as that of providing a water-soluble synthetic resin (S10). It is also possible to be carried out in, and is not necessarily to be performed in a separate step from the water-soluble synthetic resin providing step (S10).
  • a compression process is further performed before drying or dehydrating the hydrogel receptor.
  • the wrinkle-improving implant in the swollen wire-type hydrogel state is compressed in the central axis direction.
  • the cross-sectional area of the wrinkle-improved implant in the simple dried or dehydrated state is smaller than the cross-sectional area of the wrinkle-improved implant in the swollen hydrogel state and larger than the cross-sectional area of the compressed wrinkle-improved implant.
  • FIG. 3 to 6 will be described with the implant for improving wrinkles according to another embodiment.
  • 3A to 3C are cross-sectional views illustrating wrinkles implants according to another embodiment
  • FIG. 4 is a schematic view showing wrinkles implants according to FIG. 3B.
  • Figure 5 is a schematic diagram showing the wrinkle improvement implant according to Figure 3 (c)
  • Figure 6 is a cross-sectional view showing a wrinkle improvement implant according to another embodiment.
  • the wrinkle improvement implants 10a, 10b, and 10c may form hydrophilic and hydrophobic coating layers on the outer circumferential surface.
  • the hydrophilic coating layer 13 When the hydrophilic coating layer 13 is formed on the outer surface of the dry replaceable body 10 as shown in FIG. 3A, the moisture absorbed by the inner dry replaceable body 10 may be minimized until water in the air is sufficiently absorbed. have. Therefore, even when the packaging is removed, it is possible to prevent the dry substitute 10 from expanding and absorbing moisture in the air for a predetermined time. That is, the hydrophilic coating layer 13 formed on the outer surface is meaningful to increase the time it takes to swell.
  • a sugar coating layer or a nano sugar coating layer in a dried state may be formed on the outer surface of the dry substitute 10.
  • Sugars are carbohydrates that are soluble in water and can be absorbed by the body.
  • the dry body 10 is further prevented by preventing moisture in the air from being directly absorbed by the dry body 10. Can increase the time it takes to absorb and swell moisture.
  • the hydrophilic coating layer 13 uses a material having a property of absorbing moisture as compared to the dry substitute 10.
  • the hydrophobic coating layer 14 may be replaced with a thin film having elasticity.
  • the material used for the balloon (angioplasty balloon) used for angioplasty for example, PVC (polyvinyl chloride), polymer (polumer), PET (polyethylene terephthalate), nylon (nylon), polyurethane (polyurethanes),
  • PVC polyvinyl chloride
  • polymer polymer
  • PET polyethylene terephthalate
  • nylon nylon
  • polyurethane polyurethanes
  • Pebax polyether block amide
  • the function of this elastic thin film is similar to that of the hydrophobic coating layer.
  • the elastic thin film when the dry substitute is expanded in the process of changing to hydrogel, it is possible to expand together depending on the degree of expansion, and it is possible to minimize the occurrence of calcium deposition by the body fluid.
  • the coating layer formed on the outer surface of the dry substitute 10 may be cat gut, polydioxanone (PDS), polyglactin (Vicryl) or polyglutamic in consideration of absorption or biocompatibility in the body.
  • PPE polyphenyl ether
  • PPE polypehyl ether
  • polyester Polyyester
  • Polyetylene polyethylene
  • the above-mentioned dry substitute and the coating layer may include an antimicrobial material (antimicrobial) it is possible to minimize the side effects due to pathogenic infection by antibacterial action in the body after the procedure.
  • antimicrobial antimicrobial
  • chitosan may be included in the coating layer or coated on the dry substitute 10 to minimize calcium deposition.
  • the wrinkle improvement implant according to another embodiment may further include a core wire 16 inside the dry body 10 in the concentric axis direction as shown in FIG. 6.
  • the core wire 16 may function as a core for the compression of the dry substitute 10 in the manufacturing stage, and may function as a core for maintaining the shape of the wrinkle improvement implant 10d in the post-manufacturing procedure.
  • the core wire 16 is a cat gut, polydioxanone (PDS), polyglactin (Vicryl), polyglutamic acid (Polyglutamic Acid, PGA) used as a suture ), Absorbent materials of polylactic acid (PLA), poly (Lactic-co-Glycolic) Acid (PLGA), polyamide (nylon), polypropylene (polypropylene, prolene), polyphenyl ether (Polypehyl ether) , PPE), polyester (Polyester), non-absorbent material of polyethylene (Polyetylene) and the like can be used.
  • PPS polydioxanone
  • Vicryl polyglactin
  • PGA polyglutamic Acid
  • the core wire 16 may further include an antimicrobial material to minimize side effects after the procedure.
  • FIG. 7 is a schematic view showing a compression process of the wrinkle improvement implant according to an embodiment
  • Figure 8 is a schematic diagram showing an example of a method of using the wrinkle improvement implant.
  • the wrinkle improvement implant 10 As described above, as illustrated in FIG. 7, the wrinkle improvement implant 10 according to the present embodiment is manufactured in a compressed state at the manufacturing stage and has a minimized cross-sectional area. However, the wrinkle improvement implant 10 is restored to have the original multi-faceted area or volume by moisture in the body after the procedure. Therefore, the size, depth, cross-sectional area, etc. of the target portion, such as wrinkles that can be performed by the single wrinkle improvement implant 10 can be calculated. However, when the size or the cross-sectional area of the target part is larger than that of the single wrinkle improving implant 10, the two or more wrinkle improving implants 10 may be superimposed as illustrated in FIG. 8. .
  • the restoration described above does not mean exactly the same volume as the swelling state of the original hydrogel, but should be taken as a meaning that can be regarded as the same level in consideration of the deterioration of the surrounding pressure, wrinkle improvement implant, etc. something to do.
  • FIG. 9 is a schematic view showing the auxiliary for inserting the implant for improving wrinkles according to an embodiment
  • Figure 10 is a schematic diagram showing a method of using the needle for insertion
  • Figures 11 to 15 for wrinkle improvement using the insertion needle It is a schematic diagram which shows sequentially how to insert a implant.
  • An insertion needle may be used as an aid for inserting a wire-like wrinkle improvement implant into the human body.
  • the insertion needle according to the present embodiment includes a needle body 20 and a blade 21.
  • the needle body 20 is formed of a metal material having a predetermined length, and at one end thereof, a second hook part 23 for hanging the wrinkle improvement implant described above is formed.
  • the blade 21 is formed at the other end of the needle body 20. Blade 21 serves to break the fibrous tissue that connects between the fascia and epidermis during the procedure.
  • One side of the blade 21 is formed with a first hook portion 211. Like the second hook portion 23, the first hook portion 211 is used for the purpose of inserting the wrinkle improvement implant 10 formed as shown in FIG.
  • the first hook portion 211 is formed in a bent shape
  • the second hook portion 23 is formed in a hole shape penetrating the needle body, but is not limited thereto. It may be formed, or may be formed in the same shape, respectively.
  • a cutout Ins is formed at one end of the pleats W. As shown in FIG. Thereafter, after connecting the wrinkle improvement implant 10 to the second hook portion 23, the blade 21 enters toward the incision side.
  • Needle body 20 is passed through the lower portion of the incision (Ins) and the wrinkles (W), as shown in Figure 13 and then taken out to the outside through the other side of the wrinkles (W) as shown in FIG. After that, the remaining portions except for the wrinkle improvement implant 10 located below the wrinkles W are cut.
  • the wrinkle improvement implant 10 exposed to a large amount of moisture in the body begins to expand.
  • 16 and 17 are schematic diagrams showing another method of inserting an implant for improving wrinkles using an insertion needle.
  • the needle body 20 is exposed to the other side through the lower portion of the incision portion and the pleats W, and the wrinkle-improving prosthesis on the first hook portion 211 ( 10).
  • the wrinkle improvement implant 10 is positioned at the lower portion of the wrinkle W as in the above-described embodiment. .
  • the other process is the same as the previous embodiment.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medicinal Chemistry (AREA)
  • Dermatology (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Dispersion Chemistry (AREA)
  • Cardiology (AREA)
  • Molecular Biology (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)

Abstract

The present invention relates to a medical implant for improving wrinkles. The implant for improving wrinkles according to the present invention comprises a xerogel which is formed in the shape of a wire and is subjected to compression and dehydration condensation from the hydrogel state, to a greater shrinkage ratio than the shrinkage ratio of simple dehydration condensation; and the xerogel is inserted into a human body and then absorbs water in the human body so as to revert to the hydrogel state prior to the compression. The present invention allows a wrinkle improving effect to be maintained over a long time while still having good compatibility with the human body since use is made of a material such as PVA or PVAc, and the invention allows improved ease of surgery since use is made of an implant in the shape of a wire that affords easy planning of surgery via an easy calculation of the volume or cross sectional area by which the implant expands, and at the same time has a small cross sectional area and is outstandingly able to maintain form.

Description

주름개선용 보형물Wrinkle improvement implants
본 발명은 주름 개선용 의료용 보형물에 관한 것으로서, 노화에 따른 주름 등을 개선하기 위한 인체적합성을 갖는 보형물에 관한 것이다.The present invention relates to a medical implant for improving wrinkles, and relates to a implant having human suitability for improving wrinkles and the like due to aging.
불의의 사고 또는 질병으로 인하여 함몰 등 손상된 인체를 복원하거나 여성의 가슴 등의 외관을 향상시키기 위한 목적으로 다양한 방법이 이용된다. 예를 들어 종양 제거 후에 필요할 수 있는 가슴의 형상을 미적으로 향상시키기 위하여 보형물, 필러 등이 이용될 수 있으며, 주름 등의 개선을 위하여 보형물, 필러 또는 보톡스 등이 이용될 수 있다.Various methods are used for the purpose of restoring a damaged human body such as depression due to an accident or disease or improving the appearance of a woman's breast. For example, implants, fillers, and the like may be used to aesthetically improve the shape of the chest that may be needed after tumor removal, and implants, fillers, or botox, etc., may be used to improve wrinkles and the like.
특히 얼굴 주름의 경우 인상을 쓰거나 자주 웃음으로 인하여 발생할 수 있으며, 이러한 주름은 상태, 모양 및 깊이에 따라 보톡스나 필러가 이용되고 있다. 예를 들어 얕은 주름일 경우 근육을 축소시키는 보톡스 등을 이용하여 증상을 완화시킬 수 있으며, 깊은 주름이 이미 발생한 경우에는 보톡스 시술 이외에도 리프팅이나 필러 삽입 등을 병행하여 주름을 개선하게 된다.In particular, in the case of facial wrinkles may occur due to impressions or frequent laughter, such wrinkles are used botox or filler depending on the state, shape and depth. For example, in the case of shallow wrinkles, the symptoms may be alleviated by using botox to reduce muscles. If deep wrinkles have already occurred, the wrinkles may be improved by lifting or inserting fillers in addition to the botox procedure.
다만, 보톡스 또는 필러를 이용하는 시술의 경우 일정기간이 경과됨에 따라 내용물이 인체에서 분해 및 흡수되는 등의 이유로 그 효과가 급감하는 문제가 있다.However, in the case of a procedure using botox or filler, there is a problem in that the effect decreases rapidly due to the fact that the contents are decomposed and absorbed by the human body after a certain period of time.
본 발명은 인체적합성이 좋으면서도 효과가 영구적 또는 반영구적으로 유지될 수 있는 주름 개선용 보형물을 제공한다.The present invention provides an implant for improving wrinkles that can be maintained permanently or semi-permanently while having good body compatibility.
또한 본 발명은 수술 용이성이 증대되는 주름 개선용 보형물을 제공한다.In another aspect, the present invention provides an implant for wrinkle improvement that is easy to operate.
또한 본 발명은 주름 개선을 위한 보형물의 용적 또는 단면적의 계산이 용이한 주름 개선용 보형물을 제공한다.In another aspect, the present invention provides a wrinkle improvement implant that is easy to calculate the volume or cross-sectional area of the implant for wrinkle improvement.
또한 본 발명은 보관 또는 수술 대기 시에 그 원형의 유지가 용이한 주름 개선용 보형물을 제공한다.In another aspect, the present invention provides a wrinkle-improving implant that is easy to maintain its original shape during storage or surgery.
또한 본 발명은 보형물을 이용한 시술 후에도 병원균의 감염에 의한 부작용을 최소화할 수 있는 주름 개선용 보형물을 제공한다.In another aspect, the present invention provides a implant for improving wrinkles that can minimize the side effects caused by infection of pathogens even after the procedure using the implant.
본 발명에 따른 주름 개선용 보형물은 와이어 형으로 형성되고, 하이드로젤 상태로부터 단순 탈수 축합에 의한 수축율에 비하여 더 큰 수축율로 압축 및 탈수 축합되는 건교체를 포함하고, 상기 건교체는 인체 삽입 후 인체의 수분을 흡수하여 상기 압축 전 하이드로젤 상태로 회복된다.The wrinkle-improving implant according to the present invention is formed in a wire shape, and includes a dry replacer which is compressed and dehydrated condensed at a larger shrinkage rate than a shrinkage rate due to simple dehydration condensation from a hydrogel state. It absorbs moisture and recovers the hydrogel state before compression.
또한 상기 건교체는 PVA(polyvinyl alcohol), PVAc(polyvinyle acetate) 중 적어도 어느 하나의 재질로 형성될 수 있다.In addition, the dry substitute may be formed of at least one material of polyvinyl alcohol (PVA) and polyvinyle acetate (PVAc).
또한 상기 건교체의 외표면에는 친수성 및 소수성 중 어느 하나 성질을 갖는 코팅층이 적어도 하나 이상 형성될 수 있다.In addition, at least one coating layer having any one of hydrophilic and hydrophobic properties may be formed on an outer surface of the dry substitute.
또한 상기 코팅층은 키토산(Chitosan), 덱스트란(dextran), calcium channel blockers, 금속 이온 봉쇄제(chelating agents) 중 적어도 어느 하나의 성분을 포함할 수 있다.In addition, the coating layer may include at least one component of chitosan, dextran, calcium channel blockers, and metal ion blocking agents.
또한 상기 건교체의 외표면에 씌워지고, PVC(polyvinyl chloride), 폴리머(polymer), PET(polyethylene terephthalate), 나일론(nylon), 폴리우레탄(polyurethanes), 폴리에테르 블록 아미드(Pebax) 중 적어도 어느 하나의 재질을 이용하여 형성되는 탄성 박막을 포함할 수 있다.It is also coated on the outer surface of the dry substitute, at least one of polyvinyl chloride (PVC), polymer (polymer), PET (polyethylene terephthalate), nylon (nylon), polyurethane (polyurethanes), polyether block amide (Pebax) It may include an elastic thin film formed using a material of.
또한 상기 건교체의 외표면에는 캣것(Cat gut), 폴리디옥사논(Polydioxanone, PDS), 폴리글락틴(Polyglactin, Vicryl), 폴리글루타믹애시드(Polyglutamic Acid, PGA), 폴리락틱애시드(Polylactic acid, PLA), Poly(Lactic-co-Glycolic)Acid(PLGA)의 흡수성 재질과 폴리아마이드(Polyamide, Nylon), 폴리프로필렌(polypropylene, Prolene), 폴리페닐에테르(Polypehyl ether, PPE), 폴리에스테르(Polyester), 폴리에틸렌(Polyetylene)의 비흡수성 재질 중 어느 하나 재질로 형성되는 코팅층이 적어도 하나의 층 이상 형성될 수 있다.In addition, the outer surface of the dry substitute is a cat (cat gut), polydioxanone (Polydioxanone, PDS), polyglactin (Polyglactin, Vicryl), polyglutamic acid (PGA), polylactic acid (Polylactic acid, PLA), Poly (Lactic-co-Glycolic) Acid (PLGA) absorbent material, polyamide (nylon), polypropylene (polypropylene, prolene), polyphenyl ether (PPE), polyester ( At least one layer may be formed of a coating layer formed of any one of a polyester and a non-absorbent material of polyethylene.
또한 상기 건교체 및 코팅층 중 적어도 어느 하나는 항균물질(antimicrobial)을 더 포함할 수 있다.In addition, at least one of the dry substitute and the coating layer may further include an antimicrobial material.
또한 상기 건교체는 내측에 동심축 방향으로 코어 와이어를 더 포함할 수 있다.In addition, the dry substitute may further include a core wire in the concentric axis direction.
또한 상기 코어 와이어는 캣것(Cat gut), 폴리디옥사논(Polydioxanone, PDS), 폴리글루타믹애시드(Polyglutamic Acid, PGA), 폴리락틱애시드(Polylactic acid, PLA), Poly(Lactic-co-Glycolic)Acid(PLGA), 폴리글락틴(Polyglactin, Vicryl)의 흡수성 재질과 폴리아마이드(Polyamide, Nylon), 폴리프로필렌(polypropylene, Prolene), 폴리에스테르(Polyester), 폴리페닐에테르(Polypehyl ether, PPE), 폴리에틸렌(Polyetylene)의 비흡수성 재질 중 어느 하나 재질로 형성될 수 있다.In addition, the core wire is cat (cat gut), polydioxanone (Polydioxanone, PDS), polyglutamic acid (Polyglutamic Acid, PGA), polylactic acid (Polylactic acid, PLA), Poly (Lactic-co-Glycolic Absorbent material of Polyid (PLGA), Polyglactin, Vicryl, Polyamide, Nylon, Polypropylene, Prolene, Polyester, Polyphenylether (PPE), It may be formed of any one of non-absorbent materials of polyethylene (Polyetylene).
또한 상기 건교체 및 상기 코어 와이어 중 적어도 어느 하나는 항균물질(antimicrobial)을 더 포함할 수 있다.In addition, at least one of the dry substitute and the core wire may further include an antimicrobial material.
또한 상기 건교체는 적용 대상자의 주름의 깊이 및 폭에 대응하여 하나 이상 중첩된 상태로 이용될 수 있다.In addition, the dry substitute may be used in a state of overlapping at least one corresponding to the depth and width of the wrinkles of the subject.
또한 상기 건교체는 둘 이상의 와이어형의 건교체가 꼬인 상태로 압축 및 탈수 축합될 수 있다.In addition, the dry substitutes may be compressed and dehydrated condensed in a state where two or more wire-like dry substitutes are twisted.
다른 한편, 본 발명에 따른 주름 개선용 보형물 제조방법은 와이어형으로 형성된 수용성 합성수지를 제공하는 제공 단계; 상기 수용성 합성수지를 가수분해를 통하여 연화시키는 연화 단계; 상기 연화된 수용성 합성수지를 압축하는 압축 단계; 및 상기 압축된 수용성 합성수지를 탈수 또는 건조시키는 탈수축합 단계;를 포함한다.On the other hand, there is provided a method for producing an implant for improving wrinkles according to the present invention providing a water-soluble synthetic resin formed in a wire shape; A softening step of softening the water-soluble synthetic resin through hydrolysis; Compressing the softened water-soluble synthetic resin; And a dehydration condensation step of dehydrating or drying the compressed water-soluble synthetic resin.
또한 상기 제공 단계에는 PVA 또는 PVAc로부터 PVA 스폰지 와이어를 제조하는 단계를 더 포함할 수 있다.In addition, the providing step may further include preparing a PVA sponge wire from PVA or PVAc.
또한 상기 PVA 스폰지 와이어 제조 단계는, PVA 및 물을 혼합하여 PVA 수용액을 얻는 단계; 상기 PVA 수용액에 기공형성제를 투입 및 교반하는 단계; 상기 교반 단계 후 가열하여 아세탈화시키는 단계;를 포함할 수 있다.In addition, the PVA sponge wire manufacturing step, to obtain a PVA aqueous solution by mixing PVA and water; Adding and stirring a pore-forming agent to the PVA aqueous solution; And acetalizing by heating after the stirring step.
또한 상기 PVA 스폰지 와이어 제조 단계는, PVAc를 가수분해하여 PVA 수용액을 얻는 단계; 상기 PVA 수용액에 기공형성제를 투입 및 교반하는 단계; 상기 교반 단계 후 가열하여 아세탈화시키는 단계;를 포함할 수 있다.In addition, the PVA sponge wire manufacturing step, hydrolyzing PVAc to obtain a PVA aqueous solution; Adding and stirring a pore-forming agent to the PVA aqueous solution; And acetalizing by heating after the stirring step.
다른 한편, 와이어형 주름 개선용 보형물을 인체에 삽입하기 위한 보조물로서, 본 발명에 따른 주름 개선용 보형물의 삽입을 위한 보조물은 일정 길이를 갖는 와이어형으로 형성되는 니들 바디;를 포함하고, 상기 니들 바디의 일 단부에는 블레이드와 상기 와이어형 주름 개선용 보형물을 걸기 위한 제1 걸이부가 형성된다.On the other hand, as an auxiliary for inserting the wire-type wrinkle improvement implant into the human body, the auxiliary body for insertion of the wrinkle-improving implant according to the present invention includes a needle body formed in a wire shape having a predetermined length; One end of the body is formed with a first hook portion for hanging the blade and the wire-like wrinkle improvement implant.
또한 상기 니들 바디의 타 단부에는 상기 와이어형 주름 개선용 보형물을 걸기 위한 제2 걸이부가 형성될 수 있다.In addition, the other end of the needle body may be formed with a second hook portion for hanging the implant for improving the wire-like wrinkles.
본 발명은 PVA 또는 PVAc 등의 소재를 이용함으로써 인체적합성이 좋으면서도 주름 개선의 효과가 영구적 또는 반영구적으로 유지될 수 있다.In the present invention, by using a material such as PVA or PVAc, the effect of improving wrinkles can be maintained permanently or semi-permanently while having good body compatibility.
또한 본 발명에 따르면 보형물이 확장되는 용적 또는 단면적의 산출이 용이하여 수술을 계획하기에 용이하며, 동시에 적은 단면적을 갖고 형태 유지가 우수한 와이어형 보형물을 이용함으로써 수술 용이성이 증대될 수 있다.In addition, according to the present invention, the volume or cross-sectional area of the prosthesis can be easily calculated to facilitate surgery, and at the same time, the ease of surgery can be increased by using a wire-shaped prosthesis having a low cross-sectional area and excellent shape retention.
또한 본 발명에 따르면 공기 중의 수분을 흡수하여 자연적으로 팽창하는 압축된 보형물의 특성을 보완하여 보관 또는 수술 대기 시에 압축된 상태로의 원형 유지가 용이하다.Further, according to the present invention, it is easy to maintain the original shape in a compressed state at the time of storage or surgery by supplementing the characteristics of the compressed implant which naturally expands by absorbing moisture in the air.
또한 본 발명에 따르면 보형물 자체 또는 보형물의 외부에 처리된 코팅층에 항생제를 포함하도록 함으로써 보형물을 이용한 시술 후에도 병원균의 감염에 의한 부작용을 최소화할 수 있다.In addition, according to the present invention it is possible to minimize the side effects due to infection of the pathogen after the procedure using the implant by including the antibiotic itself in the coating itself or the coating layer treated on the outside of the implant.
도 1은 본 발명의 일 실시예에 따른 주름 개선용 보형물을 나타내는 개략도이다.1 is a schematic diagram showing a wrinkle improvement implant according to an embodiment of the present invention.
도 2는 일 실시예에 따른 주름 개선용 보형물 제조방법을 나타내는 순서도이다.2 is a flowchart illustrating a method for manufacturing an implant for improving wrinkles according to an exemplary embodiment.
도 3의 (a) 내지 (c)는 각각 다른 실시예에 따른 주름 개선용 보형물을 나타내는 단면도이다.3 (a) to 3 (c) are cross-sectional views illustrating implants for improving wrinkles according to different embodiments, respectively.
도 4는 도 3의 (b)에 따른 주름 개선용 보형물을 나타내는 개략도이다.Figure 4 is a schematic diagram showing the implant for improving wrinkles according to Figure 3 (b).
도 5는 도 3의 (c)에 따른 주름 개선용 보형물을 나타내는 개략도이다.Figure 5 is a schematic diagram showing the wrinkle improvement implant according to Figure 3 (c).
도 6은 또 다른 실시예에 따른 주름 개선용 보형물을 나타내는 단면도이다.6 is a cross-sectional view showing a wrinkle-improving implant according to another embodiment.
도 7은 일 실시예에 따른 주름 개선용 보형물의 압축과정을 나타내는 개략도이다.7 is a schematic diagram illustrating a compression process of an implant for improving wrinkles according to an embodiment.
도 8은 주름 개선용 보형물의 이용방법의 일 예를 나타내는 개략도이다.8 is a schematic view showing an example of a method of using an implant for improving wrinkles.
도 9는 일 실시예에 따른 주름 개선용 보형물의 삽입을 위한 보조물(삽입용 니들)을 나타내는 개략도이다.9 is a schematic diagram showing an auxiliary body (insertion needle) for inserting an implant for improving wrinkles according to an embodiment.
도 10은 삽입용 니들의 이용 방법을 나타내는 개략도이다.10 is a schematic diagram showing a method of using an insertion needle.
도 11 내지 15는 삽입용 니들을 이용하여 주름 개선용 보형물을 삽입하는 방법을 순차적으로 나타내는 개략도이다.11 to 15 are schematic views sequentially showing a method of inserting an implant for improving wrinkles using an insertion needle.
도 16 및 도 17은 삽입용 니들을 이용하여 주름 개선용 보형물을 삽입하는 다른 방법을 나타내는 개략도이다.16 and 17 are schematic diagrams showing another method of inserting an implant for improving wrinkles using an insertion needle.
본 발명에 따른 주름 개선용 보형물은 와이어 형으로 형성되고, 하이드로젤 상태로부터 단순 탈수 축합에 의한 수축율에 비하여 더 큰 수축율로 압축 및 탈수 축합되는 건교체를 포함하고, 상기 건교체는 인체 삽입 후 인체의 수분을 흡수하여 상기 압축 전 하이드로젤 상태로 회복된다.The wrinkle-improving implant according to the present invention is formed in a wire shape, and includes a dry replacer which is compressed and dehydrated condensed at a larger shrinkage rate than a shrinkage rate due to simple dehydration condensation from a hydrogel state. It absorbs moisture and recovers the hydrogel state before compression.
이하 첨부된 도면을 참조하여 본 발명의 실시예를 설명한다. 특별한 정의나 언급이 없는 경우에 본 설명에 사용하는 방향을 표시하는 용어는 도면에 표시된 상태를 기준으로 한다. 또한 각 실시예를 통하여 동일한 도면부호는 동일한 부재를 가리킨다. 한편, 도면상에서 표시되는 각 구성은 설명의 편의를 위하여 그 두께나 치수가 과장될 수 있으며, 실제로 해당 치수나 구성간의 비율로 구성되어야 함을 의미하지는 않는다.Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Unless otherwise defined or mentioned, terms indicating directions used in the present description are based on the states shown in the drawings. In addition, the same reference numerals throughout the embodiments indicate the same member. On the other hand, each of the components shown in the drawings may be exaggerated in thickness or dimensions for the convenience of description, and does not mean that actually should be configured by the ratio between the dimensions or configurations.
도 1 내지 도 8을 참조하여 일 실시예에 따른 주름 개선용 보형물 및 그 제조방법을 설명한다. With reference to Figures 1 to 8 will be described in the implant for improving wrinkles according to an embodiment and a manufacturing method thereof.
먼저 도 2 및 도 3을 참조하여 주름 개선용 보형물의 구성 및 제조방법을 설명한다. 도 1은 본 발명의 일 실시예에 따른 주름 개선용 보형물을 나타내는 개략도이다. 도 2는 일 실시예에 따른 주름 개선용 보형물 제조방법을 나타내는 순서도이다.First, the configuration and manufacturing method of the implant for improving wrinkles will be described with reference to FIGS. 2 and 3. 1 is a schematic diagram showing a wrinkle improvement implant according to an embodiment of the present invention. 2 is a flowchart illustrating a method for manufacturing an implant for improving wrinkles according to an exemplary embodiment.
본 실시예에 따른 와이어형 주름 개선용 보형물(10, 이하 '주름 개선 보형물'이라 함)은 도 1에 도시된 바와 같이 전체적으로 일정 길이를 갖는 가는 와이어(wire)형 또는 실(thread)형으로 형성된다.The wire wrinkle improvement implant according to this embodiment (10, hereinafter referred to as "wrinkle improvement implant") is formed in a thin wire (wire) or thread type having a predetermined overall length as shown in FIG. do.
또한 주름 개선 보형물(10)은 중심축 방향으로의 압축 및 외형 복원이 가능한 재질로 형성된다. 즉, 주름 개선 보형물(10)은 건교체(xerogel)로 형성되며, 이러한 건교체는 PVA(polyvinyl alcohol), PVAc(polyvinyle acetate) 중 적어도 어느 하나의 재질을 이용하여 형성될 수 있다. 주름 개선 보형물(10)은 건교체(xerogel)로 제조된 후 인체 내에서 인체 내의 수분 또는 인위적으로 제공되는 수분과 반응하여 하이드로겔(hydrogel)로 존재하게 된다.In addition, the wrinkle improvement implant 10 is formed of a material that can be compressed in the direction of the central axis and the appearance restored. That is, the wrinkle improvement implant 10 is formed of xerogel, and the dry substitute may be formed using at least one of polyvinyl alcohol (PVA) and polyvinyle acetate (PVAc). The wrinkle improvement implant 10 is made of xerogel and then reacts with moisture or artificially provided moisture in the human body to exist as a hydrogel.
하이드로겔(hydrogel)이란 어떤 물질을 보다 많은 양의 수분에 놓았을 때, 그 물질은 빠르게 팽윤(swelling)할 수 있고, 팽윤된 구조 내에 많은 양의 물을 유지할 수 있는 상태를 의미한다. 하이드로겔 상태로 존재하는 물질은 수분에 녹는다기 보다, 삼차원적인 구조를 유지한다. 그러한 수용액 상에서 구조를 이룬 젤을 하이드로겔이라 한다. 하이드로겔은 보통 화학적 결합이나 이온간의 상호작용, 수소결합 또는 소수성 작용과 같은 다른 결합력에 의해 가교된 친수성 고분자 합성수지로 만들어진다.Hydrogel refers to a state in which when a substance is placed in a larger amount of water, the substance can swell quickly and maintain a large amount of water in the swollen structure. Substances present in the hydrogel state retain a three-dimensional structure rather than dissolve in water. Gels formed on such aqueous solutions are called hydrogels. Hydrogels are usually made of hydrophilic polymer resins that are crosslinked by other bonding forces such as chemical bonds, ionic interactions, hydrogen bonding or hydrophobic action.
하이드로겔이라는 용어는 물질이 수분에 이미 팽윤되었을 때 적용된다. 건조된 젤은 건교체(xerogel 또는 dry gel)라 부른다. 건조하는 과정동안 수분은 젤로부터 증발하고, 표면장력은 젤 자체의 으스러짐을 야기한다. 따라서 젤은 아주 작은 분율의 팽윤된 크기로 수축된다. 수분이 동결건조나 유기용매를 이용한 추출에 의해 고분자 구조가 흐트러짐 없이 제거된다면, 그 때 남아있는 물질은 높은 다공성을 지닌 극히 가벼운 무게를 갖는다. 그렇게 탈 수소화된 하이드로겔은 건교체(xerogel) 혹은 스폰지(sponge)라 부른다. The term hydrogel is applied when the material is already swollen in water. Dried gels are called xerogels or dry gels. During the drying process, moisture evaporates from the gel, and the surface tension causes the gel to crush itself. Thus the gel shrinks to a very small fraction of swollen size. If moisture is removed without disruption of the polymer structure by lyophilization or extraction with organic solvents, then the remaining material has an extremely light weight with high porosity. Such dehydrogenated hydrogels are called xerogels or sponges.
이하에서는 설명의 편의를 위하여 제조 단계에서의 주름 개선 보형물 또는 팽윤되지 않고 건조된 주름 개선 보형물을 특히 건교체라 하고, 수분에 의하여 팽윤된 상태의 주름 개선 보형물을 특히 하이드로겔이라 칭한다.Hereinafter, for convenience of description, the wrinkle-improving implant at the manufacturing stage or the wrinkle-implanting implant which is not swelled and dried is particularly referred to as dry replacement, and the wrinkle-improving implant in the state of being swollen by moisture is particularly called a hydrogel.
한편, 폴리비닐 알코올(Polyvinyl alcohol, 이하 PVA)은 폴리비닐 아세테이트(polyvinyl acetate, 이하 PVAc)의 가수분해를 통해 얻어지는 친수성 고분자 합성수지이다. PVA의 가교결합은 화학적인 방법과 물리적인 방법을 통해 이루어진다. 화학적 가교결합은 PVA의 hydroxyl group과 aldehyde계 용액에 산성 상태의 가교제가 결합하여 겔(gel)을 형성한다. 물리적 가교결합의 대표적인 방법으로는 동결 융해법(freeze-thawing)이 있다. 동결융해법으로 제조된 하이드로겔은 독성이 거의 없고, 불순물 또한 포함하지 않으며 약 80 내지 90%의 수분을 함유하고 있다. 또한 가교제를 사용하지 않기 때문에 매력적인 생체의료용 하이드로겔로 사용이 가능하다.Meanwhile, polyvinyl alcohol (hereinafter referred to as PVA) is a hydrophilic polymer synthetic resin obtained through hydrolysis of polyvinyl acetate (hereinafter referred to as PVAc). Crosslinking of PVA occurs through chemical and physical methods. In chemical crosslinking, an acidic crosslinking agent binds to a hydroxyl group and an aldehyde solution of PVA to form a gel. Representative methods of physical crosslinking are freeze-thawing. Hydrogels prepared by the freeze thawing method have little toxicity, contain no impurities, and contain about 80 to 90% water. In addition, since it does not use a crosslinking agent, it can be used as an attractive biomedical hydrogel.
즉, 본 실시예에서와 같은 PVA로 제조된 주름 개선 보형물의 경우 일정한 형태를 유지하고 있으므로 인체 내에서 흡수 유실될 염려가 적으며 생체적합성이 높아 생체 조직을 괴사시킬 우려가 없다.That is, in the case of the wrinkle-improving implant made of PVA as in the present embodiment, since it maintains a certain form, there is little fear of loss of absorption in the human body and high biocompatibility, and there is no fear of necrosis of living tissue.
도 2를 참조하여 설명하면, 본 실시예에 따른 와이어형 주름 개선 보형물은 크게는 총 4개의 단계를 통하여 제조될 수 있다.Referring to FIG. 2, the wire-type wrinkle improvement implant according to the present embodiment may be manufactured through a total of four steps.
먼저 수용성 합성주지, 즉 PVA 또는 PVAc를 제공하여 와이어 형의 PVA 건교체를 제조한다(S10).First, a water-soluble synthetic resin, that is, PVA or PVAc is provided to prepare a PVA dry substitute of wire type (S10).
PVA 건교체는 젖은 상태에서는 탄력이 우수하고 매우 부드러운 반면 건조된 상태에서는 딱딱해지는 특징이 있어, 반도체 웨이퍼의 세정용 롤러(roller), TFT LCD용 글라스의 세정 및 반송용 롤러의 제조에 사용될 뿐만 아니라, 의료용 거즈, 미용타올, 스포츠타올, 주방용 발판 매트, 미생물용 담채의 재료로 사용되는 등 그 활용도가 매우 높다.PVA dry substitutes are characterized by excellent elasticity and very softness in wet conditions and hardness in dried conditions, which are not only used for cleaning rollers for semiconductor wafers, glass for TFT LCDs, and for manufacturing rollers. It is also used as a material for medical gauze, beauty towels, sports towels, kitchen scaffolding mats, and microbial tins.
PVA 건교체의 원료인 PVA는 물 이외의 보통의 유기용매에는 녹지 않는 백색 분말로 140℃ 정도까지는 안정한 상태를 유지한다. 직물(織物)의 풀, 종이의 사이징이나 에멀션화안정제(乳化安定劑) 등으로 사용된다. 이러한 PVA를 원료로 PVA 건교체를 제조(S10)한다. PVA와 물을 일정 비율로 섞은 다음 가열하여 PVA 수용액을 얻은 다음에 기공형성제로 옥수수 전분 등을 투입하고, 포르말린(formalin) 등을 투입하여 교반시킨 다음, 촉매재로 황산(H2SO4) 등을 투입한 후, 미리 준비된 금형에 주입하여 가열하여 아세탈화시키면 PVA 건교체가 된다. 이렇게 아세탈화된 PVA 건교체를 금형에서 추출하여 충분히 세척한 후 규격에 따라 절단 및 가공하여 제품화한다.PVA, a raw material for PVA dry replacement, is a white powder that is insoluble in ordinary organic solvents other than water, and remains stable up to about 140 ° C. It is used as a paste for textiles, sizing of paper or an emulsifying stabilizer. PVA dry substitute is manufactured from the PVA as a raw material (S10). After mixing PVA and water in a certain ratio, the mixture was heated to obtain a PVA aqueous solution, followed by adding corn starch as a pore-forming agent, adding formalin and stirring, and then adding sulfuric acid (H 2 SO 4) as a catalyst. Then, it is injected into a mold prepared in advance, heated and acetalized to form a PVA dry substitute. The acetalized PVA dry substitute is extracted from the mold and thoroughly washed, and then cut and processed according to specifications to produce a product.
이러한 PVA 스폰지 제조방법은 유해물질의 사용 규제가 확산되는 추세에도 불구하고, 사용규제물질인 포르말린(formalin) 또는 파라포름알데히드(paraformaldehyde)를 사용하지 않으면 아니 되는 문제점이 있다.The PVA sponge manufacturing method has a problem in that even though the use regulation of harmful substances is spread, formalin or paraformaldehyde, which is a use restriction substance, must be used.
환경규제물질의 사용을 피하고 제조 작업장의 환경도 개선시킬 수 있도록 다음과 같은 방법을 이용하여 PVA 건교체를 제조하는 것도 가능하다.It is also possible to manufacture PVA dry substitutes using the following methods to avoid the use of environmentally regulated materials and to improve the environment of the manufacturing workplace.
먼저, 물에 물 중량의 16~21%의 PVA 수지를 계량하여 섞은 후 30℃ 이상의 온도로 가열하여 PVA 수용액을 얻고, PVA 수용액에 기공형성제로 옥수수 전분 등을 형성시키고자 하는 기공의 비율에 따라 PVA 수용액의 25~45%를 투입한다. 이와 별도로, 물에 물 중량의 28~35%의 헥사메틸렌 테트라민[hexamethylene tetramine]을 투입하여 40℃ 이상의 온도로 가열하여 헥사메틸렌 테트라민 수용액을 얻는다.First, the PVA resin of 16-21% of the water weight is weighed and mixed with water, and then heated to a temperature of 30 ° C. or higher to obtain a PVA aqueous solution, depending on the proportion of pores to form corn starch as a pore-forming agent in the PVA aqueous solution. Add 25-45% of the PVA solution. Separately, hexamethylene tetramine (28-35% of hexamethylene tetramine) by weight of water is added to water and heated to a temperature of 40 ° C. or more to obtain an aqueous solution of hexamethylene tetramine.
PVA 수용액에 PVA 수용액의 12~18%의 헥사메틸렌 테트라민 수용액을 투입하여 교반시켜서 PVA 및 헥사메틸렌 테트라민 수용액을 얻은 후, 희석농도가 약 50%인 황산수용액 등 산 계열의 촉매제를 전체 수용액의 19~21% 투입한다. 이후 미리 준비한 금형에 주입하여 오븐에 넣고 62~80℃ 온도로 29~34 시간 가열(숙성)하여 아세탈화시킨다. 이렇게 아세탈화된 PVA 스폰지를 금형에서 추출하여 충분히 세척한 후 규격에 따라 절단 및 가공하여 제품화한다.12 to 18% hexamethylene tetramine aqueous solution of PVA aqueous solution was added to the PVA aqueous solution, followed by stirring to obtain an aqueous PVA and hexamethylene tetramine aqueous solution. Then, an acid-based catalyst such as an aqueous sulfuric acid solution having a dilution concentration of about 50% was added to the aqueous solution. 19-21% After injection into a mold prepared in advance into the oven and heated (aged) 29-34 hours at 62 ~ 80 ℃ temperature to acetalization. The acetalized PVA sponge is extracted from the mold and thoroughly washed, and then cut and processed according to the specifications to produce a product.
제조된 건교체는 다시 압축을 위하여 연화시킨다.(S20) 다만, 본 건교체의 연화단계는 이후의 압축(S30) 단계를 수행하기 위하여 단순히 필요한 단계로서 수용성 합성수지의 제공 단계(S10)와 동일한 단계에서 수행되는 것도 가능하며, 반드시 수용성 합성수지 제공단계(S10)와 별도의 단계로 수행되어야 하는 것은 아니다.The manufactured dry substitute is softened again for compression. (S20) However, the softening step of the present dry substitute is simply necessary to perform a subsequent compression (S30) step, and the same step as that of providing a water-soluble synthetic resin (S10). It is also possible to be carried out in, and is not necessarily to be performed in a separate step from the water-soluble synthetic resin providing step (S10).
한편, 하이드로겔 상태의 수용체를 탈수 축합하여 건조시키는 경우 앞서 설명한 바와 같이 수분이 빠져나가면서 일정 부피 줄어듦과 동시에 굳은 상태가 된다. 그러나 하이드로젤 상태의 수용체를 단순히 탈수 축합시키는 경우 부피의 감소가 미비한 수준에 그치게 된다. 따라서 본 실시예에서는 하이드로겔 상태의 수용체를 건조 또는 탈수축합시키기 전에 압축공정을 더 수행한다. 본 실시예에 따른 압축 단계(S30)에서는 팽윤된 와이어형 하이드로겔 상태의 주름 개선 보형물을 중심축 방향으로 압축시킨다. 이 때 팽윤된 와이어형 하이드로겔 상태의 주름 개선 보형물을 단순히 압축하는 방법 이외에도 둘 이상의 와이어형 건교체들을 서로 꼬아서 하나의 건교체를 형성하는 등의 방법을 수행하는 것도 가능하다. On the other hand, in the case of drying by dehydrating condensation of the hydrogel receptor as described above, as the water escapes, a certain volume decreases and becomes a solid state. However, simply dehydrating condensate receptors in the hydrogel state results in insignificant volume reduction. Therefore, in the present embodiment, a compression process is further performed before drying or dehydrating the hydrogel receptor. In the compression step S30 according to the present embodiment, the wrinkle-improving implant in the swollen wire-type hydrogel state is compressed in the central axis direction. In this case, in addition to simply compressing the wrinkle-improved implant in the swollen wire-type hydrogel state, it is also possible to perform a method such as twisting two or more wire-like dry bodies together to form one dry body.
이후 압축된 수용체를 건조 또는 탈수 함으로써 건교체 상태로 만들 수 있다(S40).Thereafter, by drying or dehydrating the compressed receptor, it may be made into a dry state (S40).
결론적으로 단순 건조 또는 탈수된 상태의 주름 개선 보형물, 즉 건교체의 단면적은 팽윤된 하이드로겔 상태의 주름 개선 보형물의 단면적 보다는 작고, 압축된 주름 개선 보형물의 단면적 보다는 크게 된다.In conclusion, the cross-sectional area of the wrinkle-improved implant in the simple dried or dehydrated state, that is, the dry substitute, is smaller than the cross-sectional area of the wrinkle-improved implant in the swollen hydrogel state and larger than the cross-sectional area of the compressed wrinkle-improved implant.
도 3 내지 도 6을 참조하여 다른 실시예에 따른 주름 개선용 보형물을 설명한다. 도 3의 (a) 내지 (c)는 각각 다른 실시예에 따른 주름 개선용 보형물을 나타내는 단면도이고, 도 4는 도 3의 (b)에 따른 주름 개선용 보형물을 나타내는 개략도이다. 또한 도 5는 도 3의 (c)에 따른 주름 개선용 보형물을 나타내는 개략도이고, 도 6은 또 다른 실시예에 따른 주름 개선용 보형물을 나타내는 단면도이다.3 to 6 will be described with the implant for improving wrinkles according to another embodiment. 3A to 3C are cross-sectional views illustrating wrinkles implants according to another embodiment, and FIG. 4 is a schematic view showing wrinkles implants according to FIG. 3B. In addition, Figure 5 is a schematic diagram showing the wrinkle improvement implant according to Figure 3 (c), Figure 6 is a cross-sectional view showing a wrinkle improvement implant according to another embodiment.
앞서 설명한 압축된 상태 건교체로 제조된 주름 개선 보형물은 일반적인 PVA 건교체에 비하여 공기 중의 수분을 흡수하여 빠르게 팽창하게 된다. 따라서 본 실시예에 따라 제조된 주름 개선 보형물은 진공 상태의 팩 등 수분이 최소화된 환경으로 포장되어 보관될 수 있으나, 수술을 위하여 해당 포장을 제거하는 경우 빠르게 공기중의 수분을 흡수하여 팽창하게 된다.Wrinkle improvement implants produced by the compressed state dry substitute described above will expand rapidly by absorbing moisture in the air compared to the general PVA dry replacer. Therefore, the wrinkle improvement implants prepared according to the present embodiment may be packaged and stored in an environment where the moisture is minimized, such as a vacuum pack, but when the corresponding package is removed for surgery, it rapidly expands by absorbing moisture in the air. .
이하에서는 이러한 보관 및 수술 대기 중의 팽창을 늦추거나 최대한 저지할 수 있는 구성을 구비하는 실시예들을 설명한다.Hereinafter will be described embodiments having a configuration capable of slowing or maximally prevent expansion of such storage and surgical waiting.
도 3을 참조하여 설명하면, 주름 개선 보형물(10a, 10b, 10c)은 친수성(hydrophilic) 및 소수성(hydrophobic) 코팅층을 외주면 상에 형성할 수 있다.Referring to FIG. 3, the wrinkle improvement implants 10a, 10b, and 10c may form hydrophilic and hydrophobic coating layers on the outer circumferential surface.
도 3의 (a)와 같이 건교체(10)의 외표면에 친수성 코팅층(13)을 형성하는 경우 공기 중의 수분이 충분히 흡수되기 전까지는 내측의 건교체(10)에 흡수되는 수분이 최소화될 수 있다. 따라서 포장이 제거된 상태에서도 일정 시간 동안 건교체(10)가 공기중의 수분을 흡수하여 팽창되는 것을 방지할 수 있다. 즉, 외표면에 형성된 친수성 코팅층(13)은 팽윤되는 데 걸리는 시간을 증가시키는 데 의의가 있다. 예를 들어 건교체(10)의 외표면에 건조된 상태의 당류 코팅층 또는 나노 당류 코팅층을 형성할 수 있다. 당류는 물에 잘 녹는 탄수화물로서 체내에서 녹아 흡수될 수 있다.When the hydrophilic coating layer 13 is formed on the outer surface of the dry replaceable body 10 as shown in FIG. 3A, the moisture absorbed by the inner dry replaceable body 10 may be minimized until water in the air is sufficiently absorbed. have. Therefore, even when the packaging is removed, it is possible to prevent the dry substitute 10 from expanding and absorbing moisture in the air for a predetermined time. That is, the hydrophilic coating layer 13 formed on the outer surface is meaningful to increase the time it takes to swell. For example, a sugar coating layer or a nano sugar coating layer in a dried state may be formed on the outer surface of the dry substitute 10. Sugars are carbohydrates that are soluble in water and can be absorbed by the body.
또한 도 3의 (b)와 같이 건교체(10)의 외표면에 소수성 코팅층(14)을 형성하는 경우 공기 중의 수분이 직접적으로 건교체(10)에 흡수되는 것을 방지함으로써 더욱 건교체(10)가 수분을 흡수하여 팽윤하는 데에 걸리는 시간을 증가시킬 수 있다.In addition, when the hydrophobic coating layer 14 is formed on the outer surface of the dry body 10 as shown in FIG. 3 (b), the dry body 10 is further prevented by preventing moisture in the air from being directly absorbed by the dry body 10. Can increase the time it takes to absorb and swell moisture.
또한 도 3의 (c)와 같이 건교체(10)의 외표면에 친수성 코팅층(13)과 소수성 코팅층(14)을 동시에 형성하는 것도 가능하다. 이 경우 소수성 코팅층(14)은 도 3의 (b)와 동일한 기능을 수행하나, 친수성 코팅층(13)은 건교체(10)가 고루 수분을 흡수할 수 있도록 촉진하는 기능을 하게 된다.In addition, as shown in (c) of FIG. 3, the hydrophilic coating layer 13 and the hydrophobic coating layer 14 may be simultaneously formed on the outer surface of the dry substitute 10. In this case, the hydrophobic coating layer 14 performs the same function as in (b) of FIG. 3, but the hydrophilic coating layer 13 has a function of promoting the dry substitute 10 to absorb moisture evenly.
구체적으로 도 4에 도시된 바와 같이 단순히 건교체(10)의 외부에 소수성 코팅층(14)만 형성되어 있는 경우 공기 중의 수분이나, 인체 내에 삽입된 후 체내의 수분(H)은 주름 개선 보형물(10b)의 절단 부분을 통하여 건교체(10)로 흡수된다. 이외에도 인위적으로 주름 개선 보형물(10b)의 절단 부분을 통하여 수분을 공급하는 것도 가능하다. 이에 비하여 친수성 코팅층(13)과 소수성 코팅층(14) 모두 형성된 경우에는 도 5에 도시된 바와 같이 수분(H)이 절단된 단부를 통하여 건교체(10)로 흡수되는 때에 수분(H)의 흡수를 촉진시켜주는 역할을 할 수 있다. 따라서 이 경우 친수성 코팅층(13)은 건교체(10)에 비하여 수분을 흡수하는 특성이 큰 재질을 이용하는 것이 바람직하다.Specifically, as shown in FIG. 4, when only the hydrophobic coating layer 14 is formed on the outside of the dry substitute 10, water in the air or water (H) in the body after being inserted into the human body is a wrinkle improvement implant 10b. Absorbed into the dry substitute 10 through the cut portion of the). In addition, it is also possible to artificially supply moisture through the cut portion of the wrinkle improvement implant (10b). In contrast, in the case where both the hydrophilic coating layer 13 and the hydrophobic coating layer 14 are formed, absorption of the moisture H is absorbed when the moisture H is absorbed into the dry body 10 through the cut end as shown in FIG. 5. It can play a role in promoting it. Therefore, in this case, it is preferable that the hydrophilic coating layer 13 uses a material having a property of absorbing moisture as compared to the dry substitute 10.
또한 소수성 코팅층(14)의 경우에는 탄성을 갖는 박막으로 대체가 가능하다. 예를 들면, 혈관성형술에 이용되는 벌룬(angioplasty balloon)에 이용되는 재질, 예를 들면 PVC(polyvinyl chloride), 폴리머(polumer), PET(polyethylene terephthalate), 나일론(nylon), 폴리우레탄(polyurethanes), 폴리에테르 블록 아미드(Pebax) 등을 이용하여 탄성의 박막을 건교체(10)의 외주면에 씌우는 것이 가능하다. 이러한 탄성 박막의 기능은 소수성 코팅층과 유사하다. 다만, 탄성 박막의 경우 건교체가 하이드로젤로 변화하는 과정에서 팽창하는 경우 팽창 정도에 따라 함께 팽창이 가능하며, 체액에 의하여 칼슘침착등이 일어나는 것을 최소화할 수 있다.In addition, the hydrophobic coating layer 14 may be replaced with a thin film having elasticity. For example, the material used for the balloon (angioplasty balloon) used for angioplasty, for example, PVC (polyvinyl chloride), polymer (polumer), PET (polyethylene terephthalate), nylon (nylon), polyurethane (polyurethanes), By using polyether block amide (Pebax) or the like, it is possible to coat the elastic thin film on the outer circumferential surface of the dry bridge 10. The function of this elastic thin film is similar to that of the hydrophobic coating layer. However, in the case of the elastic thin film, when the dry substitute is expanded in the process of changing to hydrogel, it is possible to expand together depending on the degree of expansion, and it is possible to minimize the occurrence of calcium deposition by the body fluid.
한편, 도 4 및 도 5와 같이 절단 부분을 통하여 수분이 흡수되는 경우 건교체(10)가 서서히 팽창하면서 외부의 코팅층에 크랙이 발생하게 된다. 이 때 발생된 크랙을 통하여 건교체(10)에 수분이 더 흡수됨으로써 건교체(10)의 팽창이 더욱 촉진된다.On the other hand, when moisture is absorbed through the cut portion as shown in FIGS. 4 and 5, the dry body 10 gradually expands, causing cracks in the outer coating layer. At this time, more moisture is absorbed into the dry substitute 10 through the crack generated, thereby further promoting expansion of the dry replacer 10.
건교체(10)의 외표면에 형성되는 코팅층은 체내 흡수 또는 생체적합성을 고려하여 캣것(Cat gut), 폴리디옥사논(Polydioxanone, PDS), 폴리글락틴(Polyglactin, Vicryl), 폴리글루타믹애시드(Polyglutamic Acid, PGA), 폴리락틱애시드(Polylactic acid, PLA), Poly(Lactic-co-Glycolic)Acid(PLGA)의 흡수성 재질과 폴리아마이드(Polyamide, Nylon), 폴리프로필렌(polypropylene, Prolene), 폴리페닐에테르(Polypehyl ether, PPE), 폴리에스테르(Polyester), 폴리에틸렌(Polyetylene)의 비흡수성 재질 등으로 형성될 수 있다. 다만, 비흡수성의 재질의 경우에도 수십일 이후에는 체내에 흡수되므로 별도의 제거 과정이 필요가 없다.The coating layer formed on the outer surface of the dry substitute 10 may be cat gut, polydioxanone (PDS), polyglactin (Vicryl) or polyglutamic in consideration of absorption or biocompatibility in the body. Absorbent material of polyglutamic acid (PGA), polylactic acid (PLA), poly (lactic-co-glycolic) Acid (PLGA), polyamide (nylon), polypropylene (polypropylene, prolene), It may be formed of a non-absorbent material of polyphenyl ether (Polypehyl ether, PPE), polyester (Polyester), polyethylene (Polyetylene). However, even in the case of a non-absorbent material is not absorbed in the body after several days, there is no need for a separate removal process.
한편, 상술한 건교체와 코팅층들은 항균물질(antimicrobial)을 포함함으로써 시술 후 체내에서 항균작용을 하여 병원성 감염에 의한 부작용을 최소화하는 것도 가능하다.On the other hand, the above-mentioned dry substitute and the coating layer may include an antimicrobial material (antimicrobial) it is possible to minimize the side effects due to pathogenic infection by antibacterial action in the body after the procedure.
또한 칼슘 침착등을 최소화하기 위하여 키토산(Chitosan), 덱스트란(dextran), calcium channel blockers, 금속 이온 봉쇄제(chelating agents) 등을 코팅층에 포함시키거나, 건교체(10)에 코팅할 수 있다.In addition, chitosan, dextran, calcium channel blockers, chelating agents, and the like may be included in the coating layer or coated on the dry substitute 10 to minimize calcium deposition.
다른 실시예에 따른 주름 개선 보형물은 도 6에 도시된 바와 같이 동심축 방향으로 건교체(10)의 내측에 코어 와이어(16)를 더 포함할 수 있다.The wrinkle improvement implant according to another embodiment may further include a core wire 16 inside the dry body 10 in the concentric axis direction as shown in FIG. 6.
코어 와이어(16)는 제조 단계에서는 건교체(10)의 압축을 위한 코어로서 기능할 수 있으며, 제조 후 시술 단계에서는 주름 개선 보형물(10d)의 형태를 유지시키기 위한 코어로서 기능할 수 있다.The core wire 16 may function as a core for the compression of the dry substitute 10 in the manufacturing stage, and may function as a core for maintaining the shape of the wrinkle improvement implant 10d in the post-manufacturing procedure.
이 때 코어 와이어(16)는 봉합사(suture)로서 이용되는 캣것(Cat gut), 폴리디옥사논(Polydioxanone, PDS), 폴리글락틴(Polyglactin, Vicryl), 폴리글루타믹애시드(Polyglutamic Acid, PGA), 폴리락틱애시드(Polylactic acid, PLA), Poly(Lactic-co-Glycolic)Acid(PLGA)의 흡수성 재질과 폴리아마이드(Polyamide, Nylon), 폴리프로필렌(polypropylene, Prolene), 폴리페닐에테르(Polypehyl ether, PPE), 폴리에스테르(Polyester), 폴리에틸렌(Polyetylene)의 비흡수성 재질 등이 이용될 수 있다.At this time, the core wire 16 is a cat gut, polydioxanone (PDS), polyglactin (Vicryl), polyglutamic acid (Polyglutamic Acid, PGA) used as a suture ), Absorbent materials of polylactic acid (PLA), poly (Lactic-co-Glycolic) Acid (PLGA), polyamide (nylon), polypropylene (polypropylene, prolene), polyphenyl ether (Polypehyl ether) , PPE), polyester (Polyester), non-absorbent material of polyethylene (Polyetylene) and the like can be used.
또한 앞서 설명한 바와 같이 코어 와이어(16)에는 항균물질(antimicrobial)을 더 포함하여 시술 후의 부작용을 최소화시킬 수 있다.In addition, as described above, the core wire 16 may further include an antimicrobial material to minimize side effects after the procedure.
도 7 및 도 8을 참조하여 일 실시예에 따른 주름 개선용 보형물의 사용방법을 설명한다. 도 7은 일 실시예에 따른 주름 개선용 보형물의 압축과정을 나타내는 개략도이고, 도 8은 주름 개선용 보형물의 이용방법의 일 예를 나타내는 개략도이다.Referring to Figures 7 and 8 will be described how to use the implant for improving wrinkles according to an embodiment. 7 is a schematic view showing a compression process of the wrinkle improvement implant according to an embodiment, Figure 8 is a schematic diagram showing an example of a method of using the wrinkle improvement implant.
앞서 설명한 바와 도 7에 도시된 바와 같이 본 실시예에 따른 주름 개선 보형물(10)은 제조단계에서 압축된 상태로 제조되어 최소화된 단면적을 갖는다. 다만, 주름 개선 보형물(10)은 시술 후 체내에서 수분에 의하여 원래의 다면적 또는 체적으로 갖도록 복원이 된다. 따라서 단일의 주름 개선 보형물(10)에 의하여 시술이 가능한 주름 등의 대상 부분의 크기, 깊이, 단면적 등은 산출이 가능하다. 다만, 단일의 주름 개선 보형물(10)에 의하여 시술하기에 대상 부분의 크기나 단면적 등이 더 큰 경우에는 도 8에 도시된 바와 같이 둘 이상의 주름 개선 보형물(10)들을 중첩하여 시술하는 것도 가능하다.As described above, as illustrated in FIG. 7, the wrinkle improvement implant 10 according to the present embodiment is manufactured in a compressed state at the manufacturing stage and has a minimized cross-sectional area. However, the wrinkle improvement implant 10 is restored to have the original multi-faceted area or volume by moisture in the body after the procedure. Therefore, the size, depth, cross-sectional area, etc. of the target portion, such as wrinkles that can be performed by the single wrinkle improvement implant 10 can be calculated. However, when the size or the cross-sectional area of the target part is larger than that of the single wrinkle improving implant 10, the two or more wrinkle improving implants 10 may be superimposed as illustrated in FIG. 8. .
다만, 앞서 설명하는 복원은 원래의 하이드로겔로 팽윤된 상태와 정확히 동일한 체적을 의미하는 것은 아니며, 주변의 압력, 주름 개선 보형물의 열화 등을 고려하여 동일 수준으로 간주할 수 있는 의미로 받아들여져야 할 것이다.However, the restoration described above does not mean exactly the same volume as the swelling state of the original hydrogel, but should be taken as a meaning that can be regarded as the same level in consideration of the deterioration of the surrounding pressure, wrinkle improvement implant, etc. something to do.
도 9 내지 도 15를 참조하여 보형물의 삽입을 위한 보조물(삽입용 니들)을 이용하여 주름 개선용 보형물의 삽입 과정을 설명한다. 도 9는 일 실시예에 따른 주름 개선용 보형물의 삽입을 위한 보조물을 나타내는 개략도이고, 도 10은 삽입용 니들의 이용 방법을 나타내는 개략도이며, 도 11 내지 15는 삽입용 니들을 이용하여 주름 개선용 보형물을 삽입하는 방법을 순차적으로 나타내는 개략도이다.9 to 15, a process of inserting an implant for improving wrinkles by using an assistant (insertion needle) for inserting the implant will be described. 9 is a schematic view showing the auxiliary for inserting the implant for improving wrinkles according to an embodiment, Figure 10 is a schematic diagram showing a method of using the needle for insertion, Figures 11 to 15 for wrinkle improvement using the insertion needle It is a schematic diagram which shows sequentially how to insert a implant.
와이어형 주름 개선용 보형물을 인체에 삽입하기 위한 보조물로서 삽입용 니들이 이용될 수 있다.An insertion needle may be used as an aid for inserting a wire-like wrinkle improvement implant into the human body.
본 실시예에 따른 삽입용 니들은 니들바디(20), 블레이드(21)를 포함한다.The insertion needle according to the present embodiment includes a needle body 20 and a blade 21.
도 9 및 도 10을 참조하여 설명하면, 니들바디(20)는 일정 길이를 갖는 금속재질로 형성되며, 일 단부에는 앞서 설명한 주름 개선 보형물을 걸기 위한 제2 걸이부(23)가 형성된다.Referring to FIGS. 9 and 10, the needle body 20 is formed of a metal material having a predetermined length, and at one end thereof, a second hook part 23 for hanging the wrinkle improvement implant described above is formed.
니들바디(20)의 타 단부에는 블레이드(21)가 형성된다. 블레이드(21)는 시술 시 근막과 표피 사이를 연결하는 섬유조직들을 끊어주는 기능을 한다. 블레이드(21)의 일측에는 제1 걸이부(211)가 형성된다. 제1 걸이부(211)는 제2 걸이부(23)와 마찬가지로 도 11에 도시된 바와 같이 형성된 주름 개선 보형물(10)을 걸어서 체내로 삽입시키기 위한 용도로 이용된다.The blade 21 is formed at the other end of the needle body 20. Blade 21 serves to break the fibrous tissue that connects between the fascia and epidermis during the procedure. One side of the blade 21 is formed with a first hook portion 211. Like the second hook portion 23, the first hook portion 211 is used for the purpose of inserting the wrinkle improvement implant 10 formed as shown in FIG.
한편, 도 9 상에서 제1 걸이부(211)는 절곡된 형태로 형성되고, 제2 걸이부(23)는 니들바디를 관통하는 구멍 형상으로 형성되어 있으나, 이에 한정되지 않으며, 상호 도치된 형상으로 형성될 수 도 있으며, 각기 동일한 형상으로 형성되는 것도 가능하다.Meanwhile, in FIG. 9, the first hook portion 211 is formed in a bent shape, and the second hook portion 23 is formed in a hole shape penetrating the needle body, but is not limited thereto. It may be formed, or may be formed in the same shape, respectively.
도 12를 참조하여 설명하면, 주름(W)의 일단부 측에 절개부(Ins)를 형성한다. 이후 제2 걸이부(23)에 주름 개선 보형물(10)을 연결한 후 블레이드(21)를 절개부(Ins)측을 향하여 진입시킨다.Referring to FIG. 12, a cutout Ins is formed at one end of the pleats W. As shown in FIG. Thereafter, after connecting the wrinkle improvement implant 10 to the second hook portion 23, the blade 21 enters toward the incision side.
니들바디(20)는 도 13에 도시된 바와 같이 절개부(Ins) 및 주름(W)의 하부를 통과한 후 도 14에 도시된 바와 같이 주름(W)의 타측을 통하여 외부로 꺼내진다. 이후 주름(W)의 하부에 위치하는 주름 개선 보형물(10)을 제외한 나머지 부분을 절단한다. Needle body 20 is passed through the lower portion of the incision (Ins) and the wrinkles (W), as shown in Figure 13 and then taken out to the outside through the other side of the wrinkles (W) as shown in FIG. After that, the remaining portions except for the wrinkle improvement implant 10 located below the wrinkles W are cut.
이후 도 15에 도시된 바와 같이 체내의 다량의 수분에 노출된 주름 개선 보형물(10)은 팽창하기 시작한다.Thereafter, as shown in FIG. 15, the wrinkle improvement implant 10 exposed to a large amount of moisture in the body begins to expand.
도 16 및 도 17을 참조하여 다른 실시예에 따른 삽입용 니들을 이용한 주름 개선용 보형물 삽입 방법을 설명한다. 도 16 및 도 17은 삽입용 니들을 이용하여 주름 개선용 보형물을 삽입하는 다른 방법을 나타내는 개략도이다.16 and 17, a method of inserting an implant for improving wrinkles using an insertion needle according to another exemplary embodiment will be described. 16 and 17 are schematic diagrams showing another method of inserting an implant for improving wrinkles using an insertion needle.
상술한 방법 이외에도 도 16에 도시된 바와 같이 먼저 니들바디(20)를 절개부(Ins)와 주름(W)의 하부를 통하여 타측으로 노출시킨 상태에서 제1 걸이부(211)에 주름 개선 보형물(10)을 연결한다.In addition to the above-described method, as shown in FIG. 16, first, the needle body 20 is exposed to the other side through the lower portion of the incision portion and the pleats W, and the wrinkle-improving prosthesis on the first hook portion 211 ( 10).
이 후 도 17에 도시된 바와 같이 니들바디(20)를 절개부(Ins)를 통하여 다시 빼내게 되면 앞서 설명한 실시예와 동일하게 주름 개선 보형물(10)이 주름(W)의 하부에 위치하게 된다. 이외의 과정은 앞선 실시예와 동일하다.After that, as shown in FIG. 17, when the needle body 20 is pulled out again through the cutout portion Ins, the wrinkle improvement implant 10 is positioned at the lower portion of the wrinkle W as in the above-described embodiment. . The other process is the same as the previous embodiment.
이상 본 발명의 바람직한 실시예에 대하여 설명하였으나, 본 발명의 기술적 사상이 상술한 바람직한 실시예에 한정되는 것은 아니며, 특허청구범위에 구체화된 본 발명의 기술적 사상을 벗어나지 않는 범주에서 다양하게 구현될 수 있다.Although the preferred embodiment of the present invention has been described above, the technical idea of the present invention is not limited to the above-described preferred embodiment, and may be variously implemented in a range without departing from the technical idea of the present invention specified in the claims. have.

Claims (19)

  1. 와이어 형으로 형성되고, 하이드로젤 상태로부터 단순 탈수 축합에 의한 수축율에 비하여 더 큰 수축율로 압축 및 탈수 축합되는 건교체를 포함하고,It is formed in a wire form, and includes a dry substitute that is compressed and dehydrated condensation at a larger shrinkage rate than the shrinkage rate by a simple dehydration condensation from the hydrogel state,
    상기 건교체는 인체 삽입 후 인체의 수분을 흡수하여 상기 압축 전 하이드로젤 상태로 회복되는 주름 개선용 보형물.The dry replacement implant for improving wrinkles to absorb the water of the human body after insertion into the hydrogel state before the compression.
  2. 제1항에 있어서,The method of claim 1,
    상기 건교체는 PVA(polyvinyl alcohol), PVAc(polyvinyle acetate) 중 적어도 어느 하나의 재질로 형성되는 주름 개선용 보형물.The dry substitute is a wrinkle improvement implant formed of at least one of PVA (polyvinyl alcohol), PVAc (polyvinyle acetate) material.
  3. 제1항에 있어서,The method of claim 1,
    상기 건교체의 외표면에는 친수성 및 소수성 중 어느 하나 성질을 갖는 코팅층이 적어도 하나 이상 형성되는 주름 개선용 보형물.Implants for improving wrinkles is formed on the outer surface of the dry substitute is at least one coating layer having any one of hydrophilic and hydrophobic properties.
  4. 제3항에 있어서,The method of claim 3,
    상기 친수성 코팅층은 당류 코팅층 또는 나노 당류 코팅층 중 적어도 어느 하나를 포함하는 주름 개선용 보형물.The hydrophilic coating layer is wrinkles implant for improving wrinkles comprising at least one of a sugar coating layer or a nano sugar coating layer.
  5. 제3항에 있어서,The method of claim 3,
    상기 코팅층은 키토산(Chitosan), 덱스트란(dextran), calcium channel blockers, 금속 이온 봉쇄제(chelating agents) 중 적어도 어느 하나의 성분을 포함하는 주름 개선용 보형물.The coating layer comprises a chitosan (dexito), dextran (calcin), calcium channel blockers, implants for improving wrinkles comprising at least one component of metal ion blocking agents (chelating agents).
  6. 제1항에 있어서,The method of claim 1,
    상기 건교체의 외표면에 씌워지고, PVC(polyvinyl chloride), 폴리머(polymer), PET(polyethylene terephthalate), 나일론(nylon), 폴리우레탄(polyurethanes), 폴리에테르 블록 아미드(Pebax) 중 적어도 어느 하나의 재질을 이용하여 형성되는 탄성 박막을 포함하는 주름 개선용 보형물.Overlaid on the outer surface of the dry substitute, and at least one of polyvinyl chloride (PVC), polymer (polymer), PET (polyethylene terephthalate), nylon (nylon), polyurethane (polyurethanes), polyether block amide (Pebax) An implant for wrinkle improvement comprising an elastic thin film formed using a material.
  7. 제1항에 있어서,The method of claim 1,
    상기 건교체의 외표면에는 캣것(Cat gut), 폴리디옥사논(Polydioxanone, PDS), 폴리글락틴(Polyglactin, Vicryl), 폴리글루타믹애시드(Polyglutamic Acid, PGA), 폴리락틱애시드(Polylactic acid, PLA), Poly(Lactic-co-Glycolic)Acid(PLGA)의 흡수성 재질과 폴리아마이드(Polyamide, Nylon), 폴리프로필렌(polypropylene, Prolene), 폴리페닐에테르(Polypehyl ether, PPE), 폴리에스테르(Polyester), 폴리에틸렌(Polyetylene)의 비흡수성 재질 중 어느 하나 재질로 형성되는 코팅층이 적어도 하나의 층 이상 형성되는 주름 개선용 보형물.Cat gut, polydioxanone (PDS), polyglactin, Vicryl, polyglutamic acid (PGA), polylactic acid (Polylactic acid) on the outer surface of the dry substitute , PLA), Poly (Lactic-co-Glycolic) Acid (PLGA) absorbent material and polyamide (Polyamide, Nylon), polypropylene (polypropylene, Prolene), polyphenyl ether (PPE), polyester (Polyester) ), Wrinkles implant for improving wrinkles formed of at least one layer of the coating layer formed of any one of non-absorbent material of polyethylene (polyethylene).
  8. 제7항에 있어서,The method of claim 7, wherein
    상기 건교체 및 상기 코팅층 중 적어도 어느 하나는 항균물질(antimicrobial)을 더 포함하는 주름 개선용 보형물.At least one of the dry substitute and the coating layer is a wrinkle improvement implant further comprises an antimicrobial (antimicrobial).
  9. 제1항에 있어서,The method of claim 1,
    상기 건교체는 내측에 동심축 방향으로 코어 와이어를 더 포함하는 주름 개선용 보형물.The dry substitute is a wrinkle improvement implant further comprises a core wire in the concentric axial direction.
  10. 제9항에 있어서,The method of claim 9,
    상기 코어 와이어는 캣것(Cat gut), 폴리디옥사논(Polydioxanone, PDS), 폴리글락틴(Polyglactin, Vicryl), 폴리글루타믹애시드(Polyglutamic Acid, PGA), 폴리락틱애시드(Polylactic acid, PLA), Poly(Lactic-co-Glycolic)Acid(PLGA)의 흡수성 재질과 폴리아마이드(Polyamide, Nylon), 폴리프로필렌(polypropylene, Prolene), 폴리페닐에테르(Polypehyl ether, PPE), 폴리에스테르(Polyester), 폴리에틸렌(Polyetylene)의 비흡수성 재질 중 어느 하나 재질로 형성되는 주름 개선용 보형물.The core wire is cat (gut), polydioxanone (Polydioxanone, PDS), polyglactin (Polyglactin, Vicryl), polyglutamic acid (Polyglutamic Acid, PGA), polylactic acid (PLA) , Absorbent material of Poly (Lactic-co-Glycolic) Acid (PLGA) and polyamide (Polyamide, Nylon), polypropylene (Propropylene), polyphenylether (Polypehyl ether, PPE), Polyester (Polyester), Polyethylene A wrinkle improvement implant formed of any one of (Polyetylene) non-absorbent materials.
  11. 제10항에 있어서,The method of claim 10,
    상기 건교체 및 상기 코어 와이어 중 적어도 어느 하나는 항균물질(antimicrobial)을 더 포함하는 주름 개선용 보형물.At least one of the dry substitute and the core wire is a wrinkle improvement implant further comprises an antimicrobial (antimicrobial).
  12. 제1항에 있어서,The method of claim 1,
    상기 건교체는 적용 대상자의 주름의 깊이 및 폭에 대응하여 하나 이상 중첩된 상태로 이용되는 주름 개선용 보형물.The dry substitute is a wrinkle improvement implant used in one or more overlapping state corresponding to the depth and width of the wrinkles of the subject to be applied.
  13. 제1항에 있어서,The method of claim 1,
    상기 건교체는 둘 이상의 와이어형의 건교체가 꼬인 상태로 압축 및 탈수 축합되는 주름 개선용 보형물.The dry substitute is a wrinkle-improving implant that is compressed and dehydrated condensed in the twisted state of the two or more wire-shaped dry replacement.
  14. 와이어형으로 형성된 수용성 합성수지를 제공하는 제공 단계;Providing a water-soluble synthetic resin formed in a wire shape;
    상기 수용성 합성수지를 가수분해를 통하여 연화시키는 연화 단계;A softening step of softening the water-soluble synthetic resin through hydrolysis;
    상기 연화된 수용성 합성수지를 압축하는 압축 단계; 및Compressing the softened water-soluble synthetic resin; And
    상기 압축된 수용성 합성수지를 탈수 또는 건조시키는 탈수축합 단계;를 포함하는 주름 개선용 보형물 제조방법.The dehydration condensation step of dewatering or drying the compressed water-soluble synthetic resin; Producing implant for improving wrinkles comprising.
  15. 제14항에 있어서,The method of claim 14,
    상기 제공 단계에는 PVA 또는 PVAc로부터 PVA 스폰지 와이어를 제조하는 단계를 더 포함하는 주름 개선용 보형물 제조방법.The providing step further comprises the step of preparing a PVA sponge wire from PVA or PVAc implants for improving wrinkles.
  16. 제15항에 있어서,The method of claim 15,
    상기 PVA 스폰지 와이어 제조 단계는,The PVA sponge wire manufacturing step,
    PVA 및 물을 혼합하여 PVA 수용액을 얻는 단계;Mixing PVA and water to obtain an aqueous PVA solution;
    상기 PVA 수용액에 기공형성제를 투입 및 교반하는 단계;Adding and stirring a pore-forming agent to the PVA aqueous solution;
    상기 교반 단계 후 가열하여 아세탈화시키는 단계;를 포함하는 주름 개선용 보형물 제조방법.And acetalizing by heating after the stirring step; implant for improving wrinkles comprising a.
  17. 제116항에 있어서,116. The method of claim 116 wherein
    상기 PVA 스폰지 와이어 제조 단계는,The PVA sponge wire manufacturing step,
    PVAc를 가수분해하여 PVA 수용액을 얻는 단계;Hydrolyzing PVAc to obtain an aqueous PVA solution;
    상기 PVA 수용액에 기공형성제를 투입 및 교반하는 단계;Adding and stirring a pore-forming agent to the PVA aqueous solution;
    상기 교반 단계 후 가열하여 아세탈화시키는 단계;를 포함하는 주름 개선용 보형물 제조방법.And acetalizing by heating after the stirring step; implant for improving wrinkles comprising a.
  18. 와이어형 주름 개선용 보형물을 인체에 삽입하기 위한 보조물로서,As a supplement for inserting a wire wrinkle implant implant into the human body,
    일정 길이를 갖는 와이어형으로 형성되는 니들 바디;를 포함하고,It includes; a needle body formed in a wire shape having a predetermined length;
    상기 니들 바디의 일 단부에는 블레이드와 상기 와이어형 주름 개선용 보형물을 걸기 위한 제1 걸이부가 형성되는 주름 개선용 보형물의 삽입을 위한 보조물.One end of the needle body is an auxiliary for the insertion of the wrinkle improvement implant is formed with a first hook portion for hanging the blade and the wire-type wrinkle improvement implant.
  19. 제18항에 있어서,The method of claim 18,
    상기 니들 바디의 타 단부에는 상기 와이어형 주름 개선용 보형물을 걸기 위한 제2 걸이부가 형성되는 주름 개선용 보형물의 삽입을 위한 보조물.The other end of the needle body is an auxiliary for inserting the wrinkle improvement implant is formed with a second hook portion for hanging the wire-type wrinkle improvement implant.
PCT/KR2015/011163 2014-10-21 2015-10-21 Implant for improving wrinkles WO2016064199A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2014-0142335 2014-10-21
KR1020140142335A KR101693022B1 (en) 2014-10-21 2014-10-21 Medical implant for improvement in wrinkle

Publications (1)

Publication Number Publication Date
WO2016064199A1 true WO2016064199A1 (en) 2016-04-28

Family

ID=55761160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2015/011163 WO2016064199A1 (en) 2014-10-21 2015-10-21 Implant for improving wrinkles

Country Status (2)

Country Link
KR (1) KR101693022B1 (en)
WO (1) WO2016064199A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220036069A (en) * 2020-09-15 2022-03-22 가톨릭관동대학교산학협력단 Medical implant for improvement in wrinkle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6268405B1 (en) * 1999-05-04 2001-07-31 Porex Surgical, Inc. Hydrogels and methods of making and using same
KR200353906Y1 (en) * 2004-03-19 2004-06-22 김원석 Surgical instrument for removing wrinkles
JP2007526273A (en) * 2004-03-03 2007-09-13 スイッチ バイオテック アーゲー Pharmaceutical composition and method of manufacture for topical use in the form of a xerogel or film
KR20110045734A (en) * 2009-10-27 2011-05-04 이장형 A method for manufacturing of poly vinyl alcohol sponge the insertion type that has poly vinyl alcohol film coated in cavity of the body
JP4917885B2 (en) * 2003-04-30 2012-04-18 ドゥレクセル ユニヴァーシティ Thermally gelled polymer blends for biomaterial applications
KR20130036469A (en) * 2011-10-04 2013-04-12 박승주 Method of producing pva sponge

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013055832A1 (en) * 2011-10-11 2013-04-18 Tautona Group Lp Threads of cross-linked hyaluronic acid and methods of use thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6268405B1 (en) * 1999-05-04 2001-07-31 Porex Surgical, Inc. Hydrogels and methods of making and using same
JP4917885B2 (en) * 2003-04-30 2012-04-18 ドゥレクセル ユニヴァーシティ Thermally gelled polymer blends for biomaterial applications
JP2007526273A (en) * 2004-03-03 2007-09-13 スイッチ バイオテック アーゲー Pharmaceutical composition and method of manufacture for topical use in the form of a xerogel or film
KR200353906Y1 (en) * 2004-03-19 2004-06-22 김원석 Surgical instrument for removing wrinkles
KR20110045734A (en) * 2009-10-27 2011-05-04 이장형 A method for manufacturing of poly vinyl alcohol sponge the insertion type that has poly vinyl alcohol film coated in cavity of the body
KR20130036469A (en) * 2011-10-04 2013-04-12 박승주 Method of producing pva sponge

Also Published As

Publication number Publication date
KR101693022B1 (en) 2017-01-17
KR20160046462A (en) 2016-04-29

Similar Documents

Publication Publication Date Title
JP4499669B2 (en) Trauma bandage
KR100835082B1 (en) Crosslinked polyvinyl alcohol nanofiber web using eletrospinning and process for preparing the same
US11266488B2 (en) Tissue repair fiber membrane, preparation method and application thereof, and tissue repair product
US20200330641A1 (en) Biodegradable graphene oxide biocomposite fibrous membrane, preparation method and uses thereof
CN103611182A (en) Preparation method of core-shell structure superfine fiber carrier material for medical dressing
KR101623779B1 (en) Mesh derived from natural fiber and hydrogel mask using the same
CN107320762B (en) Collagen/bacterial cellulose composite membrane dressing and preparation method thereof
US20210322225A1 (en) Lint Free Crosslinked Chitosan-PVA Sponge as an Absorbent Wound Dressing and Method of Preparation Thereof
CN110787317A (en) Department of anesthesia uses hemostatic sponge
JP2021518803A (en) Chitosan fibrous sponge structure medical dressing and its manufacturing method
CN102803587B (en) The purposes of cellulose fibre
WO2016064199A1 (en) Implant for improving wrinkles
AU2017218300B2 (en) Sheet for covering wound
CN112891062B (en) Multifunctional nanofiber-based composite hemostatic patch and preparation method thereof
CN114191599B (en) Hydrogel/nanofiber bionic double-layer dressing and preparation method thereof
KR20160038800A (en) Crimped Lyocell Fiber
JP2003336127A (en) Conjugated fiber
KR101745635B1 (en) Fiber composite porous structure and process for preparing the same
KR20180041980A (en) Manufacturing method water-soluble hydrofiber and wound dressing using the water-soluble hydrofiber
WO2020145456A1 (en) Intrauterine adhesion prevention device including dressing material
BR112020006394A2 (en) biocompatible composite material for insertion into a human body
WO2016003204A1 (en) Method for manufacturing compressed receptor for medical prosthesis, compressed receptor using same, and medical prosthesis
WO2019140572A1 (en) Wound dressing and manufacturing method thereof
CN113846419B (en) Antibacterial and disinfectant nanofiber medical dressing and preparation method thereof
CN108742750A (en) It organizes plugging material and preparation method thereof and blocks product

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15853074

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205N DATED 27.07.2017)

122 Ep: pct application non-entry in european phase

Ref document number: 15853074

Country of ref document: EP

Kind code of ref document: A1