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RU2020135533A - Комбинированные фиксирующие элементы трехмерных пористых структур для врастания кости и способы их изготовления - Google Patents

Комбинированные фиксирующие элементы трехмерных пористых структур для врастания кости и способы их изготовления Download PDF

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Publication number
RU2020135533A
RU2020135533A RU2020135533A RU2020135533A RU2020135533A RU 2020135533 A RU2020135533 A RU 2020135533A RU 2020135533 A RU2020135533 A RU 2020135533A RU 2020135533 A RU2020135533 A RU 2020135533A RU 2020135533 A RU2020135533 A RU 2020135533A
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RU
Russia
Prior art keywords
porous
prosthetic component
dimensional structure
orthopedic prosthetic
plates
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Application number
RU2020135533A
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English (en)
Inventor
Абрахам П. РАЙТ
Николас А. МИЛТНЕР
Вэйдун ТУН
Тайлер С. БОГГС
Брайан Дж. СМИТ
Original Assignee
Депуи Синтез Продактс, Инк.
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Publication of RU2020135533A publication Critical patent/RU2020135533A/ru

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    • 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • A61F2/389Tibial components
    • 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30907Nets or sleeves applied to surface of prostheses or in cement
    • AHUMAN NECESSITIES
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    • 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
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    • 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/28Bones
    • A61F2002/2892Tibia
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/30004Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
    • A61F2002/30011Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in porosity
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    • 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30594Special structural features of bone or joint prostheses not otherwise provided for slotted, e.g. radial or meridian slot ending in a polar aperture, non-polar slots, horizontal or arcuate slots
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    • 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • A61F2002/30784Plurality of holes
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    • A61F2/02Prostheses implantable into the body
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    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/3082Grooves
    • A61F2002/30827Plurality of grooves
    • 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
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    • A61F2002/30878Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30879Ribs
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    • 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
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    • 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
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    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30891Plurality of protrusions
    • A61F2002/30892Plurality of protrusions parallel
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    • 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
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    • A61F2002/3093Special external or bone-contacting surface, e.g. coating for improving bone ingrowth for promoting ingrowth of bone tissue
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    • A61F2/02Prostheses implantable into the body
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    • A61F2/3094Designing or manufacturing processes
    • A61F2002/30985Designing or manufacturing processes using three dimensional printing [3DP]

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Prostheses (AREA)

Claims (34)

1. Ортопедический протезный компонент, содержащий
основание,
фиксирующий штифт, отходящий от основания к дистальному наконечнику, при этом фиксирующий штифт содержит пористую трехмерную структуру, выполненную с возможностью обеспечения врастания кости, причем указанная пористая трехмерная структура имеет границу наружной поверхности,
причем фиксирующий штифт содержит множество пластин, прикрепленных к пористой трехмерной структуре на границе наружной поверхности, при этом каждая пластина содержит сужающуюся основную часть, имеющую наружную стенку, которая обращена от пористой трехмерной структуры и лишена каких-либо отверстий.
2. Ортопедический протезный компонент по п. 1, в котором сужающаяся основная часть каждой пластины проходит продольно вдоль пористой трехмерной структуры.
3. Ортопедический протезный компонент по п. 2, в котором
сужающаяся основная часть каждой пластины проходит от проксимального конца до дистального конца, и
сужающаяся основная часть каждой пластины имеет первую ширину на проксимальном конце и вторую ширину, которая является большей, чем первая ширина между проксимальным концом и дистальным концом.
4. Ортопедический протезный компонент по п. 2, в котором наружная стенка каждой пластины содержит вогнутую поверхность, которая образует сужающийся канал.
5. Ортопедический протезный компонент по п. 1, в котором множество пластин размещено по окружности на пористой трехмерной структуре.
6. Ортопедический протезный компонент по п. 5, в котором смежные пластины из множества пластин расположены на расстоянии друг от друга по окружности на пористой трехмерной структуре.
7. Ортопедический протезный компонент по п. 1, в котором множество пластин расположено между дистальным наконечником фиксирующего штифта и основанием.
8. Ортопедический протезный компонент по п. 1, в котором основание содержит большеберцовую платформу, выполненную с возможностью приема большеберцовой вставки.
9. Ортопедический протезный компонент по п. 8, в котором удлиненный стержень проходит от большеберцовой платформы до дистального наконечника, при этом удлиненный стержень выполнен с возможностью имплантации в хирургически подготовленный проксимальный конец большеберцовой кости пациента.
10. Ортопедический протезный компонент по п. 9, дополнительно содержащий пористый трехмерный слой, прикрепленный к дистальной поверхности большеберцовой платформы,
причем удлиненный стержень проходит наружу от трехмерного слоя, а фиксирующий штифт проходит наружу от пористого трехмерного слоя.
11. Ортопедический протезный компонент по п. 1, в котором
сужающаяся основная часть каждой пластины проходит от проксимального конца до дистального конца, и
сужающаяся основная часть каждой пластины имеет первую толщину на дистальном конце и вторую толщину, которая является большей, чем первая толщина между проксимальным концом и дистальным концом.
12. Ортопедический протезный компонент по п. 11, в котором каждая пластина проходит по окружности вокруг пористой трехмерной структуры.
13. Ортопедический протезный компонент по п. 12, в котором смежные пластины из множества пластин расположены на расстоянии друг от друга на пористой трехмерной структуре в проксимально-дистальном направлении.
14. Ортопедический протезный компонент по п. 12, в котором дистальный наконечник фиксирующего штифта содержит продольный паз.
15. Ортопедический протезный компонент, содержащий
большеберцовую платформу, выполненную с возможностью приема большеберцовой вставки,
пористую трехмерную структуру, соединенную с большеберцовой платформой, при этом пористая трехмерная структура выполнена с возможностью обеспечения врастания кости, и удлиненный стержень, проходящий от большеберцовой платформы к дистальному наконечнику,
причем пористая трехмерная структура содержит слой, соединенный с большеберцовой платформой, и множество фиксирующих штифтов, проходящих от слоя, причем каждый фиксирующий штифт содержит часть пористой трехмерной структуры, которая имеет границу наружной поверхности, и
при этом множество пластин прикреплено на границе наружной поверхности каждого фиксирующего штифта, причем каждая пластина содержит сужающуюся основную часть, имеющий наружную стенку, не содержащую каких-либо отверстий.
16. Ортопедический протезный компонент по п. 15, в котором сужающаяся основная часть каждой пластины проходит продольно вдоль пористой трехмерной структуры.
17. Ортопедический протезный компонент по п. 16, в котором наружная стенка каждой пластины содержит вогнутую поверхность, которая образует сужающийся канал.
18. Ортопедический протезный компонент по п. 15, в котором смежные пластины из множества пластин расположены на расстоянии друг от друга по окружности на каждом штифте.
19. Ортопедический протезный компонент по п. 15, в котором смежные пластины из множества пластин расположены на расстоянии друг от друга на пористой трехмерной структуре в проксимально-дистальном направлении.
20. Способ изготовления ортопедического протезного компонента, содержащий этапы, на которых
наносят и сканируют последовательные слои металлических порошков с образованием пористой трехмерной структуры, содержащей по меньшей мере один фиксирующий штифт,
при этом по меньшей мере один фиксирующий штифт содержит пористую часть и по меньшей мере одну твердую пластину, расположенную на пористой части.
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