KR102395813B1 - 골다공증 치료를 위한 골 형성 촉진 폴리머 융합 임플란트 - Google Patents
골다공증 치료를 위한 골 형성 촉진 폴리머 융합 임플란트 Download PDFInfo
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- 239000007943 implant Substances 0.000 title claims abstract description 96
- 229920000642 polymer Polymers 0.000 title claims abstract description 71
- 230000011164 ossification Effects 0.000 title claims abstract description 55
- 208000001132 Osteoporosis Diseases 0.000 title abstract description 29
- 238000002560 therapeutic procedure Methods 0.000 title 1
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 86
- 229920000431 shape-memory polymer Polymers 0.000 claims abstract description 49
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- 230000001737 promoting effect Effects 0.000 claims abstract description 21
- 238000003780 insertion Methods 0.000 claims abstract description 17
- 230000037431 insertion Effects 0.000 claims abstract description 17
- 230000037182 bone density Effects 0.000 claims description 25
- 108010007726 Bone Morphogenetic Proteins Proteins 0.000 claims description 12
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- 230000007423 decrease Effects 0.000 claims description 5
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- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 5
- 208000031636 Body Temperature Changes Diseases 0.000 claims description 4
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- 239000002745 poly(ortho ester) Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
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- 239000004417 polycarbonate Substances 0.000 claims description 4
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Polymers OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 3
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 3
- 229930182556 Polyacetal Natural products 0.000 claims description 3
- 229920002732 Polyanhydride Polymers 0.000 claims description 3
- 229920000954 Polyglycolide Polymers 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229920002627 poly(phosphazenes) Polymers 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 claims description 3
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 claims description 2
- 229920000636 poly(norbornene) polymer Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims 1
- 229920001610 polycaprolactone Polymers 0.000 claims 1
- 239000004632 polycaprolactone Substances 0.000 claims 1
- 229920001195 polyisoprene Polymers 0.000 claims 1
- 239000002639 bone cement Substances 0.000 abstract description 24
- 230000006698 induction Effects 0.000 abstract description 5
- 239000000834 fixative Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 10
- 108010049931 Bone Morphogenetic Protein 2 Proteins 0.000 description 9
- 102100024506 Bone morphogenetic protein 2 Human genes 0.000 description 9
- 238000002347 injection Methods 0.000 description 9
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- 208000029725 Metabolic bone disease Diseases 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 230000008468 bone growth Effects 0.000 description 5
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- 229920000249 biocompatible polymer Polymers 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 230000037118 bone strength Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000000411 inducer Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 208000028389 Nerve injury Diseases 0.000 description 1
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- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000008416 bone turnover Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
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- 239000011115 styrene butadiene Substances 0.000 description 1
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- A61F2/00—Filters 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
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- A61F2/00—Filters 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
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- A61F2/00—Filters 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
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- A61F2/00—Filters 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
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- A61F2/00—Filters 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
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- A61F2/00—Filters 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
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- A61F2/00—Filters 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
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- A61F2/00—Filters 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
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Abstract
Description
도 2는 골 시멘트 주입술이 행해진 환자의 골에서 시멘트가 누출된 것을 도시한 사진.
도 3은 골 시멘트 주입 후 골 변형이 발생한 것을 도시한 사진.
도 4는 본 발명의 일 실시예에 따른 골 형성 촉진 폴리머 융합 임플란트를 도시한 도면.
도 5는 임플란트의 나사산 설계를 도시한 도면.
도 6은 형상 기억 고분자의 원형, 임시형태 및 원형을 도시한 도면.
도 7은 본 발명의 다른 실시예에 따른 골 형성 촉진 폴리머 융합 임플란트를 도시한 도면.
도 8은 본 발명의 사용상태도.
10: 임플란트
11: 나사산
30: 폴리머
50: 골 형성 유도 물질
Claims (12)
- 골에 삽입되는 임플란트와,
상기 임플란트 중 골과의 고정력을 발생시키는 부위에 결합되는 폴리머를 포함하고,
상기 폴리머는, 체내에 삽입시 체온의 변화 범위 내에서 원래 형태로 복원되어 그 형태를 유지하는 형상 기억 고분자로 형성되어,
임플란트 삽입을 위해 골에 형성한 드릴링 공간이 상기 폴리머에 의해 채워지는 것을 특징으로 하는, 골 형성 촉진 폴리머 융합 임플란트. - 삭제
- 제1항에 있어서,
상기 형상 기억 고분자는, 온도 변화에 의하여 형태가 변형될 수 있는 고분자 물질을 포함하는 것을 특징으로 하는, 골 형성 촉진 폴리머 융합 임플란트. - 제3항에 있어서,
상기 고분자 물질은, 폴리노보넨(Poly-norbornene), 폴리이소프렌(Poly-isoprene), 스티렌-부타디엔 공중합체(Styrene-butadiene Copolymer), 폴리우레탄(Poly-urethane), 폴리에틸렌(Poly-ethylene), 폴리에스터(Polyester) 계열의 고분자 중 인체 내부 삽입시 무해한 것으로 공인된 어느 하나 인 것을 특징으로 하는, 골 형성 촉진 폴리머 융합 임플란트. - 제4항에 있어서,
상기 고분자 물질은, 폴리에스터 계열의 고분자이며,
상기 폴리에스터 계열의 고분자는, 폴리포스파젠(Polyphosphazene), 폴리언하이드라이드(Polyanhydride), 폴리아세탈(Polyacetal), 폴리오쏘에스터(Polyorthoester), 폴리인산디에스테르(Polyphosphoester), 폴리글리콜라이드(Polyglycolide), 폴리카프로락톤(Poly-e-caprolactone), 폴리락타이드(Polylactide), 폴리카보네이트(Polycarbonate), 폴리아미드(Polyamide) 중 인체 내부 삽입시 무해한 것으로 공인된 어느 하나 또는 이들의 조합인 것을 특징으로 하는, 골 형성 촉진 폴리머 융합 임플란트. - 제1항에 있어서,
상기 임플란트는, 고정력을 발생시키는 부위의 외주면을 따라 돌출 형성된 나사산을 포함하는 것을 특징으로 하는, 골 형성 촉진 폴리머 융합 임플란트. - 제6항에 있어서,
상기 폴리머는, 얇은 막의 형태를 가져, 상기 나사산의 외주면을 감싸도록 형성되는 것을 특징으로 하는, 골 형성 촉진 폴리머 융합 임플란트. - 제7항에 있어서,
상기 폴리머는, 상기 나사산의 외주면을 감싼 두께가 1mm 이상인 것을 특징으로 하는, 골 형성 촉진 폴리머 융합 임플란트. - 제1항에 있어서,
상기 골 형성 촉진 폴리머 융합 임플란트는, 상기 폴리머의 표면에 부착되어 골 형성을 촉진하는 골 형성 유도 물질을 추가로 포함하는 것을 특징으로 하는, 골 형성 촉진 폴리머 융합 임플란트. - 제9항에 있어서,
상기 골 형성 유도 물질은, BMP(Bone Morphogenetic Protein)-2 인 것을 특징으로 하는, 골 형성 촉진 폴리머 융합 임플란트. - 제6항에 있어서,
상기 나사산은, 나사산이 체결되는 골 부위의 골 밀도에 따라 나사산의 간격이 구간별로 상이한 것을 특징으로 하는, 골 형성 촉진 폴리머 융합 임플란트. - 제11항에 있어서,
상기 나사산은, 골 밀도가 증가함에 따라 나사산의 간격이 좁게 형성되고, 골 밀도가 감소함에 따라 나사산의 간격이 넓게 형성되는 것을 특징으로 하는, 골 형성 촉진 폴리머 융합 임플란트.
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