Эндопротез тела позвонка для малоинвазивного (торакоскопического) спондилодеза, инструмент для имплантации эндопротеза с фиксирующим устройством и способ установки заявленного эндопротеза при помощи заявленного инструмента и фиксирующего устройства
Gribanov Aleksej Viktorovich,Грибанов Алексей Викторович
申请号：
RU2015117756
公开号：
RU0002615863C2
申请日:
2015.05.12
申请国别(地区):
RU
年份:
2017
代理人:
摘要：
FIELD: medicine.SUBSTANCE: vertebral body prosthesis for low invasive spondylosyndesis is made in the form of a hollow cylinder. Surfaces that are not in contact with the bone slot walls, have a smooth surface without holes for osseointegration. The front and posterolateral surfaces that are in contact with the bone slot walls, have circumferential rows of holes intended for autobone material osseointegration in the endoprosthesis cavity into a damaged vertebral bone after slot formation therein. The entire circumference of the cylinder has separating grooves for cylinder cutting, spaced at a distance and at an angle relative to each other, passing through the rows of holes on its front and posterolateral surfaces and conventionally dividing the endoprosthesis into sections. The anterolateral surface has a longitudinal series of holes intended for locking device mounting. A tool for implantation of the said vertebral body hollow prosthesis with a prosthesis fixing device is designed as an impactor key consisting of outer and inner parts. The outer part is designed for direct introduction of the endoprosthesis, it is T-shaped and consists of a rod represented by a tube connected to the handle and froming an assembly. The handle has a through hole that extends and equal to inner hole of the rod. The impactor key interior comprises a rod and a removable T-handle. The removable T-handle consists of a handle and a base with a polygonal hole in a suitable form to insert the rod. The rod may be formed as a polyhedron or have a polyhedron portion at the unthreaded end, where the handle is put on, and has a hole with an internal thread at the other end in the center, designed for screwing a locking device consisting of a bolt and a nut. The bolt is installed from the inside of the endoprosthesis through one hole of the row of holes on the anterolateral surface, and the nut fixes it on the outside. The installation method of the said endoprosthesis by means of the said tool w
