WO2012161413A2 - 다공질의 3차원 지지체 및 그의 제조방법 - Google Patents
다공질의 3차원 지지체 및 그의 제조방법 Download PDFInfo
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- WO2012161413A2 WO2012161413A2 PCT/KR2012/001873 KR2012001873W WO2012161413A2 WO 2012161413 A2 WO2012161413 A2 WO 2012161413A2 KR 2012001873 W KR2012001873 W KR 2012001873W WO 2012161413 A2 WO2012161413 A2 WO 2012161413A2
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- WIPO (PCT)
- Prior art keywords
- biodegradable
- porous
- acid
- yarn
- multifilament
- Prior art date
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/56—Porous materials, e.g. foams or sponges
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/18—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/54—Biologically active materials, e.g. therapeutic substances
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/58—Materials at least partially resorbable by the body
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
- D01F6/625—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters derived from hydroxy-carboxylic acids, e.g. lactones
Definitions
- the present invention relates to a porous three-dimensional support and a method for manufacturing the same, and more particularly, a biodegradable multifilament twisted yarn imparted with bulky property is inserted into a tubular circular piece made of a biodegradable polymer, and the bulky property is imparted.
- the present invention relates to a porous three-dimensional support optimized for cell culture, cell delivery, or drug delivery, and to a method for preparing the same.
- the support refers to a substance that can play a role in regenerating or helping the tissue of the damaged part of the human body caused by an accident or disease.
- the support is fiber mesh method, fiber bonding method, solvent casting method, fine particle dissolution method, melt molding method, membrane lamination method, extrusion molding method, freeze drying method, freeze emulsion method, phase separation method, foaming method using gas, electrospinning method, etc. It is obtained by the manufacturing method of.
- the fiber mesh method, the fiber bonding method, the membrane lamination method, the electrospinning method of the manufacturing method is made of a support in the form of a web, there is a disadvantage that the transplanted cells grow only in a plane.
- solvent casting method fine particle dissolution method, extrusion molding, lyophilization, phase separation method, foam forming method using gas can be produced in the form of a three-dimensional support, but there is little interconnection of the internal space of the support, Metabolic processes of the transplanted cells are not smooth and eventually the growth and differentiation of transplanted cells is very difficult.
- the present inventors have tried to solve the conventional problems, by inserting a biodegradable multifilament twisted yarn imparted bulky into the tubular circular piece made of a biodegradable polymer to provide excellent connectivity of the internal space of the support cell culture, cells
- the present invention has been completed by providing a porous three-dimensional support suitable for delivery or drug delivery.
- Another object of the present invention is to provide a method for producing a porous three-dimensional support for imparting bulky properties by inserting a biodegradable multifilament twisted yarn into a circular piece made of a biodegradable polymer material.
- the present invention provides a porous three-dimensional support in which a biodegradable multifilament twisted yarn imparted with a bulkiness of 150 to 1000% is inserted into a tubular circular piece made of a biodegradable polymer.
- the tubular circular piece made of biodegradable polymer is 1 to 50 denier monofilament, 100 to 500 denier multifilament or spun fiber, wherein the usable biodegradable polymer is poly Poly lactic acid, poly glycolic acid, poly ⁇ -caprolacton, poly lactic acid-co-glycolic acid, polyhydrooxybutyric acid (poly Preference is given to at least one selected from the group consisting of 3-hydroxybutyrate (PHB), polyhydroxyvalerate (PHV), and a copolymer of polyhydroxyoxybutyrate-valeric acid (polyBv). .
- PHB 3-hydroxybutyrate
- PV polyhydroxyvalerate
- polyBv copolymer of polyhydroxyoxybutyrate-valeric acid
- the tubular circular piece has a cross-sectional diameter of 5 to 20 mm and has a net mesh structure.
- the biodegradable multifilament twisted yarn is polylactic acid, polyglycolic acid, polycaprolacton, polylactic acid-glycolic acid Copolymer of poly lactic acid-co-glycolic acid, poly 3-hydroxybutyrate (PHB), polyhydroxyvalerate (PHV) and polyhydrooxybutyric acid-valeric acid hydroxybutyrate-co-valerate (PHBV), a single polymer of a compound selected from the group consisting of dioxanone, trimethylene carbonate and ethylene oxide, or a biodegradable synthetic polymer or copolymer comprising the same, collagen, cellulose oxide, chitosan, chitin, Use is derived from materials selected from biodegradable natural polymers selected from the group consisting of gelatin and silk fibroin. More preferably, a copolymer of polylactic acid-glycolic acid in which lactide and glycolide are copolymerized in
- the biodegradable multifilament twisted yarn is characterized in that the porous is given a pore of 10 ⁇ 150 ⁇ m.
- the present invention is prepared by inserting a multi-filament plywood yarn made of a biodegradable polymer into a narrow circular knitting machine loom to prepare a tubular circular piece,
- biodegradable multifilament twisted yarn by spinning the biodegradable polymer into monofilament or multifilament yarn according to melt spinning or wet spinning followed by plywood twisting,
- It provides a method for producing a porous three-dimensional support that is performed by stretching the inserted biodegradable multifilament false twist yarn to impart bulkiness.
- the diameter of the single filament yarn is 5 to 30 ⁇ m
- the diameter of the multi-filament yarn yarn is preferably 80 to 8000 ⁇ m.
- the pore of 10 to 150 ⁇ m is imparted to the biodegradable multifilament twisted yarn by the tension and bulkiness is imparted.
- the bulkiness is a volume increase rate of 150 to 1000% compared to the biodegradable multifilament false twist yarn which is not given bulkiness.
- the porous three-dimensional support of the present invention is manufactured so that the bulky biodegradable multifilament twisted yarns are inserted into the tubular circular pieces made of biodegradable polymer, and the biodegradable multifilament twisted yarns are inserted and fixed inside the circular pieces 150 to 150. Given the bulky structure of 1000%, the connectivity of the internal space of the support is excellent, which is advantageous for cell culture, cell delivery or drug delivery on a three-dimensional structure.
- Figure 2 is a side photograph of the tubular circular piece prepared in Example 1 of the present invention observed in the longitudinal direction
- FIG. 3 is a front photograph of the tubular annular of FIG. 2 observed from above;
- the present invention inserts a biodegradable multifilament twisted yarn imparted 150-1000% bulkiness into a tubular circular piece made of a biodegradable polymer material, so that cell culture, cell delivery, or drug delivery can be performed in the twisted yarn.
- the designed porous three-dimensional support is provided.
- the three-dimensional support of the present invention is a porous structure by the surface of the net-like mesh (mesh) of the tubular circular piece made of the biodegradable polymer material and the pores of 10 ⁇ 150 ⁇ m given to the biodegradable multifilament false twist yarn It is shaped.
- the tubular circular piece made of the biodegradable polymer material of the present invention has a fiber form by melt spinning, wet spinning, etc. among synthetic and natural biodegradable polymer materials, and is spun in the form of 1 to 50 denier monofilaments or 100 to 500 denier multifilaments. It should be possible fiber or synthetic and natural short fiber spun yarn. Preferably it is a fiber which circularly knits using a narrow circular knitting machine with 100-500 denier thickness.
- the biodegradable polymer material should be a material harmless to the human body even if inserted into the body or attached to the body, and as a preferred example, polylactic acid (PLA), polyglycolic acid (PGA), polycaprolactone (poly ⁇ -caprolacton, PCL), copolymers of polylactic acid-co-glycolic acid (PLGA), polyhydrooxybutyrate (PHB), polyhydrooxyvalerate , PHV) and copolymers of polyhydroxyoxybutyrate-valeric acid (poly hydroxybutyrate-co-valerate, PHBV).
- PLA polylactic acid
- PGA polyglycolic acid
- PCL polycaprolactone
- PLGA polylactic acid-co-glycolic acid
- PHB polyhydrooxybutyrate
- PHV polyhydrooxyvalerate
- PHBV polyhydroxyoxybutyrate-valeric acid
- Figure 2 is a side photograph of the tubular circular piece of the present invention observed in the longitudinal direction
- Figure 3 is a front photograph of the tubular circular piece observed from above, the circular piece has an 8mm diameter and 100mm length prepared in Example 1.
- the tube-shaped circular piece of the present invention has a net-like network structure
- the circular piece composed of three yarns according to the thickness of the fiber has a large pore between the net
- the circular piece composed of the yarn will have a small pore between the net
- the structure of the circular knitting structure Therefore, the desired pore size can be controlled.
- the tubular circular piece has a generally circular cross section, and the circular piece has a diameter of 5 to 20 mm, more preferably 5 to 12 mm.
- the circular knitting diameter is less than 5 mm, the bulkiness of the biodegradable multifilament false twisted yarn is not sufficiently provided in the circular knitting, and thus, the efficiency of cell culture, cell delivery, or drug delivery is lowered.
- the spacing of circular circular meshes becomes excessively large, resulting in poor connectivity between internal spaces and deterioration of cell and drug retention.
- Figure 4 shows the distribution measured by analyzing and classifying the inner pores of the tubular circular piece of the present invention by size.
- the porous three-dimensional support of the present invention performs cell culture, cell delivery, or drug delivery functions in the bulky structure of the biodegradable multifilament false twisted yarn inserted into the circular piece.
- the biodegradable multifilament twisted yarn of the present invention is a network structure having pores in the bulky structure, and the bulkiness or pore size can be adjusted by tensile conditions in the false twisted yarn manufacturing process.
- the present invention provides a bulky property of 150 to 1000% to biodegradable multifilament (Draw Textured Yarn) having a bulky nature and excellent softness of false twisted yarn, and when applied to medical applications, through the bulky structure Suitable for cell culture, cell delivery or drug delivery.
- biodegradable multifilament Draw Textured Yarn
- the present invention is to provide a porous three-dimensional support by fixing such bulky biodegradable multifilament twisted yarns inside the annular piece.
- “bulky structure” refers to a structure in which a plurality of pores of 1 ⁇ m or more exist between fibers
- “bulky” refers to a tensile or elongation after manufacture of multifilament twisted yarn made of a biodegradable polymer material. Through, it means that the bulkiness of 150 to 1000% is given to the biodegradable multifilament twisted yarn.
- the bulkiness of the biodegradable multifilament false twisted yarn of the present invention can be freely adjusted according to the purpose and target of cell culture, cell delivery or drug delivery, but when processed to less than 150%, the voids between the threads become smaller. It is difficult to proliferate cells in culture, and the content of cells or drugs that can be delivered in vivo is low, and the utility as a support that can be used for medical purposes is poor. In addition, if the content exceeds 1000%, the rate of trimming is increased due to the poor durability of the biodegradable polymer resin, and the voids between the yarns become too large and the retention capacity of cells or drugs tends to decrease, which is not preferable.
- the pore size can be appropriately adjusted according to the cell or drug size selected. More specifically, the bulky structure of the multifilament false twisted yarn of the present invention has pores of 1 to 150 ⁇ m, more preferably 5 to 50 ⁇ m. At this time, when the pore size is less than 1 ⁇ m, voids between the threads become small, making cell proliferation difficult during cell culture, and the content of cells or drugs that can be delivered in vivo is low, and the utility as a support that can be used for medical purposes is inferior. In addition, when the pore size exceeds 150 ⁇ m, the voids between the yarns become excessively large, so that the capacity to retain cells, drugs, and the like tends to be inferior.
- the biodegradable multifilament false-twist yarn given the bulkiness of the present invention is harmless to the human body even if it is inserted into the body or attached in a patch form, and it should be able to be decomposed and absorbed in the body after achieving the cell or drug delivery purpose in cell culture or in vivo.
- the biodegradable multifilament false twist yarn should be a fiber having a monofilament and a multifilament form in the form of fiber by melt spinning or wet spinning, among synthetic and natural biodegradability.
- the plywood which is woven with monofilament and multifilament with a thickness of 50 to 500 deniers, is passed through a combustor such as a roller combustor or a disk combustor and twisted in the S direction to the Z direction to partially give a bulky structure. do.
- a combustor such as a roller combustor or a disk combustor
- the false twisted yarn is made of natural polymer or synthetic polymer satisfying biocompatibility.
- a copolymer of polylactic acid-glycolic acid in which lactide and glycolide are copolymerized in a weight ratio of 10:90 to 30:70 is preferable.
- the lactide and the glycolide are described using a copolymer of polylactic acid-glycolic acid copolymerized in a 10:90 weight ratio, but the weight ratio or the material thereof will not be limited.
- 1 is a step-by-step showing a method for producing a porous three-dimensional support of the present invention, the present invention 1) to prepare a multi-filament yarn made of biodegradable polymer into a narrow circular knitting machine to prepare a tubular circular piece,
- biodegradable multifilament twisted yarn by spinning the biodegradable polymer into monofilament or multifilament yarn by melt spinning method or wet spinning method and then plywood twisting;
- the circular knitting prepared in step 1) is a fiber having a generally circular cross section which is circular knitted using a narrow circular knitting machine, and is prepared in a length of 50 to 120 mm, and the circular knitting diameter is 5 20 mm, More preferably, it is prepared in the range of 5-12 mm.
- the biodegradable polymer to be used is a material harmless to the human body even when inserted into the body or attached to the body, specific examples are the same as described above.
- Step 2) is a step of preparing a biodegradable multifilament twisted yarn, by spinning a biodegradable natural polymer through a spinneret, to produce an ultrafine multifilament yarn having a single yarn diameter of 5 to 30 ⁇ m.
- the biodegradable multifilament yarn of step 2) is an ultrafine fiber that does not exceed 30 ⁇ m, and satisfies the physical properties of strength of 2.0 to 9.0 g / d and elongation 20 to 80%, and in subsequent stretching and combusting process, generation of trimming and deterioration Can be minimized.
- the degradation rate may be slowed down after cell culture, cell delivery or drug delivery, and the stiffness is increased, resulting in inferior workability or ease of operation.
- the preferred diameter of the multifilament after weaving is 80 to 8000 ⁇ m, more preferably 1000 to 4000 ⁇ m.
- the diameter of the Plywood yarn is less than 80 ⁇ m, it is difficult for the medical support to have a three-dimensional structure, and if it exceeds 8000 ⁇ m, the foreign body reaction of the used polymer in vivo is increased. have.
- Step 3) prepares and inserts 1 to 3 times the length of the biodegradable multifilament twisted yarn of step 2) relative to the length of the tubular circular piece prepared in step 1).
- the bulkiness is to be given a volume increase rate of 150 to 1000% compared to the biodegradable multifilament twisted yarn not given bulkiness.
- the method of imparting the bulky structure in the manufacturing method of the present invention uses a method in which the biodegradable multifilament twisted yarn is wound in a stretchable holder, followed by stretching in a range of 5 to 20%. At this time, when the tensile ratio is less than 5%, it is difficult to form a bulky structure, and when it exceeds 20%, fiber trimming is likely to occur, which is not preferable.
- Another method of imparting a bulky structure is carried out by a stretching method in a continuous process.
- Plywood yarn with 4 weights of multifilament yarn made of polylactic acid-glycolic acid copolymer (PLGA) polymer chip copolymerized with lactide and glycolide in a 10:90 weight ratio. was prepared to a length of 100 mm.
- PLGA polylactic acid-glycolic acid copolymer
- PLGA Polylactic Acid-Glycolic Acid Copolymer
- the PLTY 200de / 64fila DTY twisted yarns are spliced in 64 hap, passed through the prepared PLGA (10:90) circular piece, and the 15% tensile tension of the DTY twisted yarns of PLGA 200de / 64fila is made of a porous three-dimensional
- the support was prepared and cut to 10 mm to facilitate incubation in a 24-well micro plate dish. At this time, the prepared support was excellent in connectivity of the internal space of the support by the bulky structure, the bulkiness of the support having the bulky structure was 500%.
- a porous 3 was carried out in the same manner as in Example 1, except that the DTY false twisted yarn of PLGA 200de / 64fila was synthesized into 16, 32, 100, 150, and 200 polymers, respectively. A dimensional support was prepared.
- the present invention provides a porous three-dimensional support in which a porous three-dimensional support is inserted into a biodegradable multifilament twisted yarn imparted with bulky properties into a tubular circular piece made of a biodegradable polymer.
- the porous three-dimensional support of the present invention is porous by the net-like network structure of the circular knitting and 10 to 150 ⁇ m pores imparted to the biodegradable multifilament twisted yarn, while the biodegradable multifilament twisted yarn is inserted into the circular knit to be 150 to
- the connectivity of the space inside the support is excellent and is optimized for cell culture, cell delivery or drug delivery on a stable three-dimensional structure.
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Abstract
Description
Claims (14)
- 생분해성 고분자로 이루어진 튜브형의 환편 내부에,150 내지 1000%의 벌키성이 부여된 생분해성 멀티 필라멘트 가연사가 삽입된 다공질의 3차원 지지체.
- 제1항에 있어서, 상기 생분해성 고분자로 이루어진 튜브형의 환편이 모노 필라멘트, 멀티 필라멘트 또는 방적된 섬유인 것을 특징으로 하는 상기 다공질의 3차원 지지체.
- 제1항에 있어서, 상기 생분해성 고분자가 폴리락트산, 폴리글리콜산, 폴리카프로락톤, 폴리락트산-글리콜산의 공중합체, 폴리하이드로옥시부티르산, 폴리하이드로옥시발레르산 및 폴리하이드로옥시부티르산-발레르산의 공중합체로 이루어진 군에서 선택되는 1종 이상인 것을 특징으로 하는 상기 다공질의 3차원 지지체.
- 제1항에 있어서, 상기 튜브형의 환편이 5 내지 20mm의 단면지름을 가지는 것을 특징으로 하는 상기 다공질의 3차원 지지체.
- 제1항에 있어서, 상기 튜브형의 환편이 네트형 망 구조를 가지는 것을 특징으로 하는 상기 다공질의 3차원 지지체.
- 제1항에 있어서, 상기 생분해성 멀티 필라멘트 가연사가 폴리락트산, 폴리글리콜산), 폴리카프로락톤, 폴리락트산-글리콜산의 공중합체, 폴리하이드로옥시부티르산, 폴리하이드로옥시발레르산 및 폴리하이드로옥시부티르산-발레르산의 공중합체, 다이옥사논, 트리메틸렌카보네이트 및 에틸렌옥사이드로 이루어진 군에서 선택되는 화합물의 단일 중합체 또는 이들을 포함하는 공중합체의 생분해성 합성 고분자 또는 콜라겐, 산화셀룰로오스, 키토산, 키틴, 젤라틴 및 실크 피브로인으로 이루어진 군에서 선택되는 생분해성 천연 고분자에서 선택된 소재로부터 유래된 것을 특징으로 하는 상기 다공질의 3차원 지지체.
- 제1항에 있어서, 상기 생분해성 멀티 필라멘트 가연사가 락타이드 및 글리콜라이드가 10:90 내지 30:70 중량비율로 공중합된 폴리락트산-글리콜산의 공중합체인 것을 특징으로 하는 상기 다공질의 3차원 지지체.
- 제1항에 있어서, 상기 생분해성 멀티 필라멘트 가연사에 10∼150㎛의 기공이 부여되는 것을 특징으로 하는 상기 다공질의 3차원 지지체.
- 생분해성 고분자로 제조된 멀티 필라멘트 합사사를 세폭환편직기에 투입하여 튜브형의 환편을 준비하고,생분해성 고분자를 용융방사 또는 습식방사에 따라 모노 필라멘트 또는 멀티 필라멘트사로 방사 후 합사 가연하여 생분해성 멀티 필라멘트 가연사를 준비하고,상기 튜브형의 환편에 상기 생분해성 멀티 필라멘트 가연사를 삽입하고,상기 삽입된 생분해성 멀티 필라멘트 가연사를 인장하여 벌키성을 부여하는 것으로 수행되는 다공질의 3차원 지지체의 제조방법.
- 제9항에 있어서, 상기 생분해성 멀티 필라멘트 가연사 공정 중, 모노 필라멘트 또는 멀티 필라멘트사의 단사 직경이 5 내지 30㎛인 것을 특징으로 하는 상기 다공질의 3차원 지지체의 제조방법.
- 제9항에 있어서, 상기 생분해성 멀티 필라멘트 가연사 공정에서 합사 후 멀티 필라멘트사의 직경이 80 내지 8000㎛인 것을 특징으로 하는 상기 다공질의 3차원 지지체의 제조방법.
- 제9항에 있어서, 상기 인장이 5∼20%로 수행되는 것을 특징으로 하는 상기 다공질의 3차원 지지체의 제조방법.
- 제9항에 있어서, 상기 인장에 의해 생분해성 멀티 필라멘트 가연사에 10∼150㎛의 기공이 부여되는 것을 특징으로 하는 상기 다공질의 3차원 지지체의 제조방법.
- 제9항에 있어서, 상기 인장에 의해 벌키성이 부여되지 않은 생분해성 멀티 필라멘트 가연사 대비 150 내지 1000% 부피증가율이 구현된 벌키성이 부여된 것을 특징으로 하는 상기 다공질의 3차원 지지체의 제조방법.
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US13/984,431 US20140005797A1 (en) | 2011-05-26 | 2012-03-15 | Three-dimensional porous scaffold and manufacturing method thereof |
JP2013553379A JP5844388B2 (ja) | 2011-05-26 | 2012-03-15 | 多孔質の3次元支持体及びその製造方法 |
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KR10-2011-0049996 | 2011-05-26 | ||
KR1020110049996A KR101275163B1 (ko) | 2011-05-26 | 2011-05-26 | 다공질의 3차원 지지체 및 그의 제조방법 |
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WO2012161413A4 WO2012161413A4 (ko) | 2013-03-07 |
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JP (1) | JP5844388B2 (ko) |
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KR101856575B1 (ko) * | 2016-05-25 | 2018-06-19 | 주식회사 아모그린텍 | 세포배양 지지체용 원사 및 이를 포함하는 원단 |
KR101872283B1 (ko) * | 2016-12-07 | 2018-06-29 | 한국생산기술연구원 | 섬유충진 3차원 지지체의 제조방법 |
CN108384717A (zh) | 2017-02-03 | 2018-08-10 | 财团法人工业技术研究院 | 细胞培养载体模块与细胞培养系统 |
WO2019013533A2 (ko) * | 2017-07-10 | 2019-01-17 | 주식회사 아모라이프사이언스 | 세포배양 지지체용 혼섬사 제조방법, 이를 통해 구현된 세포배양 지지체용 혼섬사 및 이를 포함하는 원단 |
US20190077933A1 (en) * | 2017-09-08 | 2019-03-14 | Indian Institute Of Technology Delhi | Process for preparing three dimensional porous scaffold and the three dimensional porous scaffold formed thereof |
KR102233499B1 (ko) * | 2017-12-05 | 2021-03-29 | 한국생산기술연구원 | 3차원 섬유형 스캐폴드 |
KR102172383B1 (ko) | 2019-11-27 | 2020-10-30 | 한국생산기술연구원 | 생분해성 실의 마이크로 공극 형성 장치 및 방법 |
KR102587534B1 (ko) * | 2019-12-11 | 2023-10-11 | 주식회사 엠아이텍 | 방사선 불투과성 물질이 포함된 생분해성 튜브 |
CN112843334B (zh) * | 2021-01-13 | 2022-07-08 | 东华大学 | 一种三维打印复合气凝胶构建仿生气管及其制备方法 |
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US6953482B2 (en) * | 2001-04-26 | 2005-10-11 | Nipro Corporation | Instrument for regenerating living organism tissue or organ |
KR20030096381A (ko) * | 2001-05-11 | 2003-12-24 | 오쏘-맥네일 파머슈티칼 인코퍼레이티드 | 동물에 사용하기 위한 면역 조절장치 |
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JP2014504940A (ja) | 2014-02-27 |
US20140005797A1 (en) | 2014-01-02 |
WO2012161413A4 (ko) | 2013-03-07 |
JP5844388B2 (ja) | 2016-01-13 |
KR20120131664A (ko) | 2012-12-05 |
KR101275163B1 (ko) | 2013-06-17 |
WO2012161413A3 (ko) | 2013-01-17 |
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