RU2016121915A - Устройство для тазобедренного сустава и способ - Google Patents

Устройство для тазобедренного сустава и способ Download PDF

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Publication number
RU2016121915A
RU2016121915A RU2016121915A RU2016121915A RU2016121915A RU 2016121915 A RU2016121915 A RU 2016121915A RU 2016121915 A RU2016121915 A RU 2016121915A RU 2016121915 A RU2016121915 A RU 2016121915A RU 2016121915 A RU2016121915 A RU 2016121915A
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Russia
Prior art keywords
artificial
specified
femoral head
hip joint
acetabulum
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RU2016121915A
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English (en)
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RU2016121915A3 (ru
RU2734330C2 (ru
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Питер Форселл
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Имплантика Патент Лтд.
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Claims (76)

1. Имплантируемое медицинское устройство для имплантации в тазобедренный сустав пациента, причем тазобедренный сустав содержит головку бедренной кости в форме шара, присоединенную к шейке бедренной кости и являющуюся верхней конечностью бедренной кости, при этом шейка бедренной кости и головка бедренной кости имеют продольное осевое ветвление с продольной центральной осью головки бедренной кости, проходящей от шейки бедренной кости в центр шейки бедренной кости и головки бедренной кости и по направлению к вертлужной впадине, причем вертлужная впадина представляет собой чашевидную часть тазовой кости с отверстием в направлении головки бедренной кости и имеет центральную ось, проходящую от центра дна чашки по направлению к центру отверстия и нормального положения головки бедренной кости, причем центральная ось головки бедренной кости соответствует центральной оси вертлужной впадины в специальном центрированном положении, когда головка бедренной кости является выровненной, центрированной и симметричной в вертлужной впадине, при этом и головка бедренной кости, и вертлужная впадина имеют несущую поверхность тазобедренного сустава, расположенные друг напротив друга и в контакте друг с другом, причем несущие поверхности тазобедренного сустава несут нагрузку в тазобедренном суставе, а медицинское устройство содержит:
по меньшей мере одну искусственную поверхность (45, 65) тазобедренного сустава, выполненную с возможностью замены по меньшей мере поверхности из по меньшей мере одной из головки бедренной кости и вертлужной впадины, и
позиционирующее отверстие (910), имеющее по меньшей мере одно отверстие и выполненное с возможностью приема позиционирующего стержня (900), выполненного с возможностью стабилизации и размещения по меньшей мере в одной из бедренной кости и тазовой кости, и по меньшей мере частичного охвата стержня для размещения указанной по меньшей мере одной искусственной поверхности тазобедренного сустава в необходимом положении в тазобедренном суставе,
причем указанная по меньшей мере одна искусственная поверхность тазобедренного сустава медицинского устройства содержит искусственную головку бедренной кости или искусственную поверхность головки бедренной кости и дополнительно содержит искусственную вертлужную впадину или искусственную
поверхность вертлужной впадины,
отличающееся тем, что искусственная головка бедренной кости или искусственная поверхность головки бедренной кости содержит первое позиционирующее отверстие, а указанная искусственная вертлужная впадина или искусственная поверхность вертлужной впадины содержит второе позиционирующее отверстие, причем указанные первое и второе позиционирующие отверстия выполнены с возможностью приема указанного позиционирующего стержня, прикрепленного по меньшей мере к одной из бедренной и тазовой кости для размещения указанной искусственной головки бедренной кости или искусственной поверхности головки бедренной кости относительно указанной искусственной вертлужной впадины или искусственной поверхности вертлужной впадины и относительно бедренной кости и/или тазовой кости.
2. Имплантируемое медицинское устройство по п. 1, в котором по меньшей мере одно из:
указанной искусственной головки бедренной кости или искусственной поверхности головки бедренной кости содержит по меньшей мере две части (46, 56, 913а-913с) искусственной головки бедренной кости или части искусственной поверхности головки бедренной кости, и
указанной искусственной вертлужной впадины или искусственной поверхности вертлужной впадины содержит по меньшей мере две части искусственной вертлужной впадины или части искусственной поверхности вертлужной впадины,
причем указанные части выполнены с возможностью соединения в месте использования для формирования указанной искусственной головки бедренной кости или искусственной поверхности головки бедренной кости, или указанной искусственной вертлужной впадины или искусственной поверхности вертлужной впадины,
причем по меньшей мере одно из:
указанной искусственной головки бедренной кости или искусственной поверхности головки бедренной кости, и
указанной искусственной вертлужной впадины или искусственной поверхности вертлужной впадины
содержит позиционирующее отверстие, выполненное с возможностью
приема позиционирующего стержня, выполненного с возможностью прикрепления по меньшей мере к одной из бедренной кости и тазовой кости, причем указанное отверстие выполнено с возможностью по меньшей мере частичного охвата указанного стержня для размещения указанных по меньшей мере двух частей искусственной головки бедренной кости или искусственной поверхности головки бедренной кости в необходимом положении в тазобедренном суставе.
3. Имплантируемое медицинское устройство по п. 1 или 2, в котором головка бедренной кости имеет по существу шаровую конфигурацию с максимальным диаметром, по существу перпендикулярным центральной оси головки бедренной кости, причем указанная искусственная поверхность головки бедренной кости содержит внутреннюю поверхность и по меньшей мере одну первую заднюю часть (62) указанной искусственной поверхности головки бедренной кости, выполненной с возможностью покрытия и/или входа в кость головки бедренной кости по меньшей мере на часть головки бедренной кости за максимальный диаметр головки бедренной кости вдоль центральной оси головки бедренной кости, от чашки вертлужной впадины по направлению к указанной головке бедренной кости при установке на головку бедренной кости в ее функциональном положении в суставе, причем указанная по меньшей мере одна первая задняя часть выполнена с возможностью иметь ближайшее перпендикулярное расстояние до указанной центральной оси головки бедренной кости, которое меньше расстояния между максимальным расстоянием до указанной внутренней поверхности искусственной поверхности головки бедренной кости и указанной центральной оси, причем указанное медицинское устройство таким образом выполнено с возможностью создания более стабильного положения указанной искусственной поверхности головки бедренной кости при установке на головку бедренной кости в указанное функциональное положение.
4. Имплантируемое медицинское устройство по п. 1 или 2, в котором указанная искусственная поверхность головки бедренной кости имеет наибольший диаметр или наибольший размер поперечного сечения, изменяемый во время операции.
5. Имплантируемое медицинское устройство по п. 1 или 2, выполненное с возможностью прикрепления по меньшей мере к одной из головки бедренной кости, шейки бедренной кости, бедренной кости и тазовой кости с использованием прикрепляющего элемента,
причем указанный прикрепляющий элемент является прикрепляющим элементом, выбранным из группы, содержащей:
по меньшей мере один винт;
по меньшей мере один штифт;
по меньшей мере один элемент по меньшей мере одной из частей, выполненный с возможностью ввода в другую часть;
части, выполненные с возможностью скользящей вставки в другую часть;
сопрягающие элементы;
сварку;
адгезив;
штифт;
проволоку;
шар, установленный в чашку, являющиеся элементами указанных частей;
охватываемый элемент одной части, установленный в охватывающий элемент другой части;
ключ, введенный в замок, являющиеся элементами указанных частей;
бандаж и
другие механические соединительные элементы.
6. Имплантируемое медицинское устройство по п. 1 или 2, в котором указанная искусственная поверхность тазобедренного сустава выполнена с возможностью:
установки на позиционирующий стержень в тазобедренном суставе;
центрирования и удерживания во время ее прикрепления в тазобедренном суставе;
иметь указанное отверстие, расположенное в центре выпуклой части искусственной выпуклой головки бедренной кости или искусственной выпуклой поверхности головки бедренной кости;
иметь указанное отверстие, расположенное в центре вогнутой части указанной искусственной вертлужной впадины или искусственной вогнутой поверхности вертлужной впадины;
иметь указанное позиционирующее отверстие, по существу круглое;
иметь указанное позиционирующее отверстие, содержащее разрезанную
замкнутую кривую;
вставки в тазобедренный сустав через капсулу тазобедренного сустава;
вставки в тазобедренный сустав через тазовую кость;
установки на позиционирующий стержень вне тазобедренного сустава;
размещения по меньшей мере в одной оси;
прикрепления указанного позиционирующего стержня по меньшей мере к одной из бедренной кости и тазовой кости с помощью содержащейся винтовой резьбы во время размещения указанного медицинского устройства в тазобедренном суставе; и
размещения по меньшей мере в двух осях.
7. Имплантируемое медицинское устройство по п. 1 или 2, в котором указанная искусственная поверхность головки бедренной кости имеет выпуклую форму в направлении центра тазобедренного сустава, и указанная искусственная поверхность вертлужной впадины имеет вогнутую форму в направлении центра тазобедренного сустава, причем
указанная искусственная выпуклая поверхность головки бедренной кости выполнена с возможностью прикрепления к тазовой кости пациента; и
указанная искусственная вогнутая поверхность вертлужной впадины выполнена с возможностью прикрепления к бедренной кости пациента.
8. Имплантируемое медицинское устройство по п. 1 или 2, в котором головка бедренной кости имеет выпуклую поверхность тазобедренного сустава в направлении центра тазобедренного сустава, и вертлужная впадина имеет вогнутую поверхность тазобедренного сустава в направлении центра тазобедренного сустава, причем искусственная головка бедренной кости или искусственная поверхность головки бедренной кости, имеющая выпуклую форму в направлении центра тазобедренного сустава, содержит первое отверстие, и искусственная вертлужная впадина или искусственная поверхность вертлужной впадины, имеющая вогнутую форму в направлении центра тазобедренного сустава, содержит второе отверстие., причем по меньшей мере одна из указанной искусственной головки бедренной кости или искусственной поверхности головки бедренной кости, и указанной искусственной вертлужной впадины или искусственной поверхности вертлужной впадины выполнена с возможностью центрирования в тазобедренном суставе с помощью указанного
позиционирующего стержня, размещенного в указанном отверстии и по меньшей мере в одной из бедренной кости и тазовой кости, причем
указанная искусственная выпуклая головка бедренной кости или указанная искусственная выпуклая поверхность головки бедренной кости имеет указанное первое отверстие, размещенное в указанной выпуклой части для обеспечения возможности введения позиционирующего стержня в указанное отверстие и центрирования указанной искусственной выпуклой головки бедренной кости или указанной искусственной выпуклой поверхности головки бедренной кости при размещении в тазобедренном суставе; и
указанная искусственная вогнутая вертлужная впадина или указанная искусственная вогнутая поверхность вертлужной впадины имеет указанное второе отверстие, размещенное в указанной вогнутой части для обеспечения возможности введения позиционирующего стержня в указанное отверстие и центрирования указанной искусственной вогнутой вертлужной впадины или указанной искусственной вогнутой поверхности вертлужной впадины при размещении в тазобедренном суставе, когда указанный тазобедренный сустав находится в указанном специальном центрированном положении.
9. Имплантируемое медицинское устройство по п. 1 или 2, в котором по меньшей мере одно из:
искусственной головки бедренной кости или искусственной поверхности головки бедренной кости, и
искусственной вертлужной впадины или искусственной вертлужной впадины имеет сквозное отверстие с входной частью отверстия и выходной частью отверстия, выполненное с возможностью приема позиционирующего стержня в указанную входную часть отверстия и выходящего из выходной части отверстия.
10. Позиционирующий стержень (900), выполненный с возможностью размещения в отверстии (910) медицинского устройства для размещения искусственной поверхности тазобедренного сустава медицинского устройства в правильном положении в тазобедренном суставе пациента, причем указанный позиционирующий стержень является удлиненным и дополнительно выполнен с возможностью введения по меньшей мере в одну из бедренной кости и тазовой кости для размещения указанного медицинского устройства в тазобедренном суставе и приема указанного медицинского устройства, вставленного в тазобедренный сустав через тазовую кость.
11. Имплантируемое медицинское устройство по п. 1 или 2, содержащее позиционирующий стержень, выполненный с возможностью прикрепления по меньшей мере к одной из бедренной кости и тазовой кости для размещения указанного медицинского устройства в тазобедренном суставе и дополнительно выполнен с возможностью по меньшей мере одного из:
прикрепления указанного позиционирующего стержня по меньшей мере к одной из бедренной кости и тазовой кости с помощью содержащейся винтовой резьбы во время размещения указанного медицинского устройства в тазобедренном суставе;
удаления по меньшей мере из одной из бедренной кости и тазовой кости после указанного размещения указанного медицинского устройства в тазобедренном суставе;
иметь первое и второе положение, в котором в указанном первом положении указанный позиционирующий стержень является гибким, а в указанном втором положении указанный позиционирующий стержень является менее гибким, чем в указанном первом положении;
размещения указанного медицинского устройства по меньшей мере в одной оси;
размещения указанного медицинского устройства по меньшей мере в двух осях;
размещения в позиционирующем отверстии по меньшей мере в одной из по меньшей мере двух частей медицинского устройства, причем указанное медицинское устройство содержит по меньшей мере две части медицинского устройства;
иметь площадь поперечного сечения по существу перпендикулярную его удлиненному распределению;
размещения в указанном позиционирующем отверстии, по существу не круглом;
размещения в указанном позиционирующем отверстии, имеющем разрезанную замкнутую кривую;
приема указанного медицинского устройства, вставленного в тазобедренный сустав, через капсулу тазобедренного сустава; и
приема указанного медицинского устройства для установления на
указанный позиционирующий стержень в тазобедренном суставе.
12. Система медицинского устройства, содержащая:
медицинское устройство по любому из пп. 1-9 и позиционирующий стержень по п. 10.
13. Система медицинского устройства по п. 12, дополнительно содержащая имплантируемую смазывающую систему, выполненную с возможностью смазки указанного медицинского устройства, когда указанное медицинское устройство размещено в тазобедренном суставе.
14. Система медицинского устройства по п. 12, в которой указанный позиционирующий стержень является первым позиционирующим стержнем (900а), а система дополнительно содержит второй позиционирующий стержень (900b), причем указанный первый позиционирующий стержень выполнен с возможностью быть вовлеченным в размещение указанной искусственной головки бедренной кости или указанной искусственной поверхности головки бедренной кости в тазобедренном суставе, а указанный второй позиционирующий стержень выполнен с возможностью быть вовлеченным в размещение указанной искусственной вертлужной впадины или указанной искусственной поверхности вертлужной впадины в тазобедренном суставе.
15. Система медицинского устройства по п. 14, в которой указанный первый позиционирующий стержень и указанный второй позиционирующий стержень выполнены с возможностью соединения друг с другом после имплантации в тазобедренный сустав пациента.
RU2016121915A 2009-07-10 2010-07-12 Устройство для тазобедренного сустава и способ RU2734330C2 (ru)

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SE0900969-7 2009-07-10
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