RU2008851C1 - Endoprosthesis of vertebra bodies - Google Patents

Endoprosthesis of vertebra bodies Download PDF

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Publication number
RU2008851C1
RU2008851C1 SU5014876A RU2008851C1 RU 2008851 C1 RU2008851 C1 RU 2008851C1 SU 5014876 A SU5014876 A SU 5014876A RU 2008851 C1 RU2008851 C1 RU 2008851C1
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channels
endoprosthesis
titanium nickelide
bodies
rod
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Russian (ru)
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И.К. Раткин
Н.Е. Полищук
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Научно-практический центр имплантатов с памятью формы "Доктор"
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/3006—Properties of materials and coating materials
    • A61F2002/30092—Properties of materials and coating materials using shape memory or superelastic materials, e.g. nitinol
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/302—Three-dimensional shapes toroidal, e.g. rings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30224—Three-dimensional shapes cylindrical
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2002/449—Joints for the spine, e.g. vertebrae, spinal discs comprising multiple spinal implants located in different intervertebral spaces or in different vertebrae
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0065—Three-dimensional shapes toroidal, e.g. ring-shaped, doughnut-shaped
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0069—Three-dimensional shapes cylindrical

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

Abstract

FIELD: medicine; applicable in neurosurgery, neurotraumatology, neuroorthopedics and traumatology. SUBSTANCE: endoprosthesis comprises rod 1 of porous titanium nickelide separated into two halves, each of which has through channels 4 on circumference arc and lying in mutually perpendicular and intersecting planes. Parts of rod are interconnected by locking member made of two rings passing through above channels and turned through 90 deg. relative to each other. In cross-section the ring is of rectangular shape. EFFECT: higher efficiency. 2 cl, 4 dwg

Description

Изобретение относится к медицине и может быть использовано в нейрохирургии, нейротравматологии, нейроортопедии и травматологии. The invention relates to medicine and can be used in neurosurgery, neurotraumatology, neuroorthopedics and traumatology.

На фиг. 1 изображен протез тел позвонков, общий вид; на фиг. 2 - протез во фронтальной плоскости, разрез; на фиг. 3, 4 - схема применения конструкций. In FIG. 1 shows a prosthesis of the vertebral bodies, general view; in FIG. 2 - prosthesis in the frontal plane, section; in FIG. 3, 4 - diagram of the use of structures.

Устройство содержит корпус 1 в виде отдельных цилиндрических частей, на противостоящих гранях 2 которых имеются пазы 3. В обеих половинах корпуса 1 выполнены по дуге окружности по два сквозных канала 4, лежащих во взаимно перпендикулярных и пересекающихся плоскостях. Обе половины корпуса 1 соединены между собой элементом фиксации 5, выполненным в виде двух колец, проходящих через каналы 4 стержня 1. В сечении кольцо имеет прямоугольную форму. Обе половины стержня выполнены из пористого никелида титана со сквозными порами диаметром 150-200 мкм с коэффициентом пористости 50 - 60% . Размеры каждой половины стержня, например 1,5 х 1,4 см, диаметр колец 1,6 см при замещении дефекта двух тел позвонков 1,8 х 1,4 и диаметр колец 1,6 см при замещении дефекта трех тел позвонков. При замещении тел четырех позвонков и более размеры, а именно длина корпуса, увеличиваются. При замещении тел трех, четырех позвонков и более корпус можно разделить на три части, соединенных между собой двумя элементами фиксации. Элемент фиксации из двух колец выполнен из сплава никелида титана с эффектом памяти формы ТЭН-10. The device comprises a housing 1 in the form of separate cylindrical parts, on the opposing faces 2 of which there are grooves 3. In both halves of the housing 1, two through channels 4 lying in mutually perpendicular and intersecting planes are made along a circular arc. Both halves of the housing 1 are interconnected by a locking element 5, made in the form of two rings passing through the channels 4 of the rod 1. In the cross section, the ring has a rectangular shape. Both halves of the rod are made of porous titanium nickelide with through pores with a diameter of 150-200 microns with a porosity coefficient of 50-60%. The dimensions of each half of the rod, for example, 1.5 x 1.4 cm, the diameter of the rings is 1.6 cm when replacing a defect of two vertebral bodies, 1.8 x 1.4 and the diameter of the rings is 1.6 cm when replacing a defect of three vertebral bodies. When replacing the bodies of four vertebrae or more, the dimensions, namely the length of the body, increase. When replacing the bodies of three, four vertebrae or more, the body can be divided into three parts, interconnected by two fixation elements. The fixing element of two rings is made of an alloy of titanium nickelide with a shape memory effect TEN-10.

Используется конструкция следующим образом. Под общим обезболиванием в положении больного на спине осуществляется паратрахеальный доступ справа к передней поверхности тел верхних шейных позвонков. The construction is used as follows. Under general anesthesia in the patient’s position on the back, paratracheal access is made to the right of the anterior surface of the upper cervical vertebrae.

Фрезой и костными ложками производится удаление тел позвонков до задней продольной связки. В смежных отделах тел позвонков в области костного дефекта формируются пазы 6 глубиной 2-3 мм. Конструкция в течении 3-4 мин орошается хлорэтилом до температуры -30оС, при этом элемент фиксации 5 становится "мягким", пластичным. Обе половины корпуса 1 сдвигаются между собой при помощи сгибания колец элемента фиксации 5 до нужных размеров, соответствующих размерам костного дефекта 7, и конструкция помещается в операционную рану таким образом, чтобы противостоящие грани 2 корпуса 1 поместились в костные пазы 6 тел позвонков. При контактном нагревании от окружающих тканей элемент фиксации стремится принять свою первоначальную заданную форму, при этом создается равномерное, постоянное давление обеих половин корпуса на костную ткань позвонков. Имплантат надежно фиксируется в пазах тел позвонков, т. е. выполняется первично надежный межтеловой спондилодез. После проверки надежности фиксации имплантата рана ушивается наглухо.The cutter and bone spoons remove the vertebral bodies to the posterior longitudinal ligament. In adjacent sections of the vertebral bodies in the area of the bone defect, grooves 6 are formed with a depth of 2-3 mm. Structure for 3-4 min irrigated chloroethyl to -30 ° C, the fixing member 5 becomes "soft" plastic. Both halves of the casing 1 are moved together by bending the rings of the fixation element 5 to the desired size corresponding to the size of the bone defect 7, and the design is placed in the surgical wound so that the opposing faces 2 of the casing 1 fit into the bone grooves of 6 vertebral bodies. Upon contact heating from surrounding tissues, the fixation element tends to take its original predetermined shape, while creating uniform, constant pressure of both halves of the body on the bone tissue of the vertebrae. The implant is securely fixed in the grooves of the vertebral bodies, i.e., an initially reliable interbody fusion is performed. After checking the reliability of fixation of the implant, the wound is sutured tightly.

Благодаря создаваемой постоянной компрессии в области соприкосновения обоих концов корпуса с костной тканью, костный блок формируется в 2-3 раза быстрее. Пространство в области фиксирующего элемента фиксации 5 замещается рубцовой тканью, в связи с чем в дальнейшем сохраняются минимальные движения в области хирургического вмешательства во всех направлениях, уменьшается нагрузка на смежные сегменты, что ведет к нормальному функционированию данных сегментов. Due to the constant compression created in the area of contact between both ends of the body with the bone tissue, the bone block forms 2-3 times faster. The space in the area of the fixation fixing element 5 is replaced by scar tissue, in connection with which thereafter, minimal movements in the field of surgical intervention in all directions are preserved, the load on adjacent segments is reduced, which leads to the normal functioning of these segments.

При использовании предлагаемой конструкции для спондилодеза у больных с травматическими повреждениями и опухолями верхних шейных позвонков сохраняется достаточный объем движений, повышается надежность внутренней фиксации позвоночника, уменьшается количество осложнений, улучшаются результаты лечения больных. When using the proposed design for spinal fusion in patients with traumatic injuries and tumors of the upper cervical vertebrae, a sufficient range of movements is preserved, the reliability of internal fixation of the spine is increased, the number of complications is reduced, and the treatment results of patients are improved.

(56) Авторское свидетельство СССР N 1591973, кл. А 61 F 2/44, 1989. (56) Copyright certificate of the USSR N 1591973, cl. A 61 F 2/44, 1989.

Claims (2)

1. ЭНДОПРОТЕЗ ТЕЛ ПОЗВОНКОВ, содержащий корпус из пористого никелида титана с пазами и элементы фиксации из монолитного никелида титана с эффектом памяти формы, отличающийся тем, что корпус состоит из отдельных цилиндрических частей, в каждой из которых выполнены по дуге окружности два сквозных канала, расположенных во взаимно перпендикулярных и пересекающихся плоскостях, при этом части корпуса соединены между собой элементом фиксации, выполненным из двух колец, установленных в каналах. 1. ENDOPROTHESIS OF BODIES OF CALLS, comprising a body made of porous titanium nickelide with grooves and fixation elements made of monolithic titanium nickelide with a shape memory effect, characterized in that the body consists of separate cylindrical parts, each of which has two through channels located along a circular arc located in mutually perpendicular and intersecting planes, while parts of the body are interconnected by a locking element made of two rings installed in the channels. 2. Эндопротез по п. 1, отличающийся тем, что в сечении кольцо имеет прямоугольную форму. 2. An endoprosthesis according to claim 1, characterized in that the ring has a rectangular shape in cross section.
SU5014876 1991-11-28 1991-11-28 Endoprosthesis of vertebra bodies RU2008851C1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6019793A (en) * 1996-10-21 2000-02-01 Synthes Surgical prosthetic device
US6129763A (en) 1996-09-13 2000-10-10 Chauvin; Jean-Luc Expandable osteosynthesis cage
US6660038B2 (en) 2000-03-22 2003-12-09 Synthes (Usa) Skeletal reconstruction cages
US6929662B1 (en) * 1999-02-04 2005-08-16 Synthes (Usa) End member for a bone fusion implant
US8057549B2 (en) 2003-08-07 2011-11-15 Dynamic Spine, Inc. Apparatus and method for performing spinal surgery
US9314348B2 (en) 2014-06-04 2016-04-19 Wenzel Spine, Inc. Bilaterally expanding intervertebral body fusion device
US11219531B2 (en) 2019-04-10 2022-01-11 Wenzel Spine, Inc. Rotatable intervertebral spacing implant

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8790407B2 (en) 1996-09-13 2014-07-29 Liliane Attali Expandable osteosynthesis cage
US6129763A (en) 1996-09-13 2000-10-10 Chauvin; Jean-Luc Expandable osteosynthesis cage
US6371989B1 (en) 1996-09-13 2002-04-16 Jean-Luc Chauvin Method of providing proper vertebral spacing
US7828848B2 (en) 1996-09-13 2010-11-09 Wenzel Spine, Inc. Expandable osteosynthesis cage
US8992621B2 (en) 1996-09-13 2015-03-31 Liliane Attali Expandable osteosynthesis cage
US8435299B2 (en) 1996-09-13 2013-05-07 Wenzel Spine, Inc. Expandable osteosynthesis cage
US6019793A (en) * 1996-10-21 2000-02-01 Synthes Surgical prosthetic device
US6929662B1 (en) * 1999-02-04 2005-08-16 Synthes (Usa) End member for a bone fusion implant
US6660038B2 (en) 2000-03-22 2003-12-09 Synthes (Usa) Skeletal reconstruction cages
US8057549B2 (en) 2003-08-07 2011-11-15 Dynamic Spine, Inc. Apparatus and method for performing spinal surgery
US9314348B2 (en) 2014-06-04 2016-04-19 Wenzel Spine, Inc. Bilaterally expanding intervertebral body fusion device
US9707095B2 (en) 2014-06-04 2017-07-18 Wenzel Spine, Inc. Bilaterally expanding intervertebral body fusion device
US10098756B2 (en) 2014-06-04 2018-10-16 Wenzel Spine, Inc. Bilaterally expanding intervertebral body fusion device
US10945857B2 (en) 2014-06-04 2021-03-16 Wenzel Spine, Inc. Bilaterally expanding intervertebral body fusion device
US11219531B2 (en) 2019-04-10 2022-01-11 Wenzel Spine, Inc. Rotatable intervertebral spacing implant

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