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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endoprosthesis
channels
housing
rod
characterized
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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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Priority to SU5014876 priority Critical patent/RU2008851C1/en
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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
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • 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
    • 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
    • A61F2002/3006Properties of materials and coating materials
    • A61F2002/30092Properties of materials and coating materials using shape memory or superelastic materials, e.g. nitinol
    • 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
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • A61F2002/30199Three-dimensional shapes
    • A61F2002/302Three-dimensional shapes toroidal, e.g. rings
    • 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
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • A61F2002/30199Three-dimensional shapes
    • A61F2002/30224Three-dimensional shapes cylindrical
    • 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
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2002/449Joints for the spine, e.g. vertebrae, spinal discs comprising multiple spinal implants located in different intervertebral spaces or in different vertebrae
    • 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
    • A61F2210/00Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0014Particular 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
    • 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0065Three-dimensional shapes toroidal, e.g. ring-shaped, doughnut-shaped
    • 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0069Three-dimensional shapes cylindrical

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, neyroortopedii and traumatology.

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

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. The apparatus comprises a housing 1 in the form of individual cylindrical portions on opposing faces of which there are two grooves 3. The two halves of the housing 1 formed by a circular arc with two bores 4 lying in mutually perpendicular and intersecting planes. 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. Both halves of housing 1 are interconnected fixing element 5, made in the form of two rings, passing through the channels 4 of the rod 1. The ring has a rectangular cross-sectional shape. Обе половины стержня выполнены из пористого никелида титана со сквозными порами диаметром 150-200 мкм с коэффициентом пористости 50 - 60% . The two halves of a rod made of porous TiNi with through-pore diameter of 150-200 microns with porosity coefficient of 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. Dimensions of each half bar, for example 1.5 x 1.4 cm, 1.6 cm diameter rings by substituting the defect two vertebral 1.8 x 1.4 and 1.6 cm diameter rings by substituting the defect three vertebral bodies. При замещении тел четырех позвонков и более размеры, а именно длина корпуса, увеличиваются. With the substitution of the four bodies of the vertebrae or more dimensions, namely the length of the body, increasing. При замещении тел трех, четырех позвонков и более корпус можно разделить на три части, соединенных между собой двумя элементами фиксации. When substituted bodies of three, four or more vertebral body can be divided into three parts, interconnected by two fixation elements. Элемент фиксации из двух колец выполнен из сплава никелида титана с эффектом памяти формы ТЭН-10. fixation member of the two rings is made of an alloy of TiNi shape memory PETN-10.

Используется конструкция следующим образом. Used construction follows. Под общим обезболиванием в положении больного на спине осуществляется паратрахеальный доступ справа к передней поверхности тел верхних шейных позвонков. Under general anesthesia in supine patient carried paratracheal access right to the front surface of a body of the upper cervical vertebrae.

Фрезой и костными ложками производится удаление тел позвонков до задней продольной связки. Bone cutter and spoons made removal of vertebral bodies to the posterior longitudinal ligament. В смежных отделах тел позвонков в области костного дефекта формируются пазы 6 глубиной 2-3 мм. The adjacent sections of vertebral bone defect in the grooves 6 are formed depth of 2-3 mm. Конструкция в течении 3-4 мин орошается хлорэтилом до температуры -30 о С, при этом элемент фиксации 5 становится "мягким", пластичным. Structure for 3-4 min irrigated chloroethyl to -30 ° C, the fixing member 5 becomes "soft" plastic. 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. Both halves of housing 1 are moved together by bending the element fixing rings 5 ​​to the desired dimensions corresponding to the dimensions of the bone defect 7 and the structure is placed in the incision so that the opposing face 2 of the housing 1 fit in the grooves 6 bony vertebral bodies. 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. When the contact is heated by the surrounding tissue fixation element tends to take its original predetermined shape, this creates an even, constant pressure on both halves of the body to the bones of the vertebrae. Имплантат надежно фиксируется в пазах тел позвонков, т. е. выполняется первично надежный межтеловой спондилодез. The implant is firmly fixed in the grooves of the vertebral bodies, t. E. Is performed primarily reliable interbody fusion. После проверки надежности фиксации имплантата рана ушивается наглухо. After verifying the reliability of fixation of the implant wound sutured tightly.

Благодаря создаваемой постоянной компрессии в области соприкосновения обоих концов корпуса с костной тканью, костный блок формируется в 2-3 раза быстрее. Due to the constant compression produced in the region of contact of both ends of the body with the bone tissue, the bone block is formed by 2-3 times faster. 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. The space in the fixing member fixing 5 is replaced by scar tissue, and therefore the further movement stored minimum in surgery in all directions reduces the load to adjacent segments, which leads to the normal functioning of the data 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 lesions and tumors of the upper cervical vertebrae retained sufficient range of motion increases the reliability of the internal fixation of the spine, reduced complications, treatment of patients improved.

(56) Авторское свидетельство СССР N 1591973, кл. (56) Copyright certificate USSR N 1591973, cl. А 61 F 2/44, 1989. 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. ENDOPROSTHESIS vertebral bodies, comprising a body of porous TiNi with grooves and locking elements from the monolithic NiTi shape memory, characterized in that the housing consists of separate cylindrical parts, each of which two bores formed along a circular arc located mutually perpendicular and intersecting planes, the portion of the housing are interconnected fixation element formed of two rings mounted in the channels.
2. Эндопротез по п. 1, отличающийся тем, что в сечении кольцо имеет прямоугольную форму. 2. Endoprosthesis according to Claim. 1, characterized in that the ring section has a rectangular shape.
SU5014876 1991-11-28 1991-11-28 Endoprosthesis of vertebra bodies RU2008851C1 (en)

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Cited By (6)

* 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

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8992621B2 (en) 1996-09-13 2015-03-31 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
US8435299B2 (en) 1996-09-13 2013-05-07 Wenzel Spine, Inc. Expandable osteosynthesis cage
US8790407B2 (en) 1996-09-13 2014-07-29 Liliane Attali 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

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