SU990220A1 - Ирисретрактор - Google Patents

Ирисретрактор Download PDF

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Publication number
SU990220A1
SU990220A1 SU813292251A SU3292251A SU990220A1 SU 990220 A1 SU990220 A1 SU 990220A1 SU 813292251 A SU813292251 A SU 813292251A SU 3292251 A SU3292251 A SU 3292251A SU 990220 A1 SU990220 A1 SU 990220A1
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USSR - Soviet Union
Prior art keywords
hook
manipulator
handle
iris retractor
slot
Prior art date
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SU813292251A
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English (en)
Inventor
Святослав Николаевич Федоров
Леонид Феодосьевич Линник
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Московский научно-исследовательский институт микрохирургии глаза
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Priority to SU813292251A priority Critical patent/SU990220A1/ru
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Publication of SU990220A1 publication Critical patent/SU990220A1/ru

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/0231Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for eye surgery
    • 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
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Ophthalmology & Optometry (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Vascular Medicine (AREA)
  • Eye Examination Apparatus (AREA)

Description

(54) ИРИСРЕТРАКТОР
1
Изобретение относитс  к медицинской технике, а именно к офтальмологическим инструментам, используемым при операции криоэкстракции катаракты. Главным этапом при проведении такой операции  вл етс  выведение хрусталика путем примораживани  его к криоэкстрактору. При этом дл  обнажени  поверхности хрусталика радужна  оболочка сдвигаетс  кверху при помощи специальных крючков-ирисретракторов .
Известен ирисретрактор, состо щий из руко тки, заканчивающейс  крючком 1.
Недостатком этого ирисретрактора  вл етс  то, что при его извлечении после удалени  хрусталика возможны травмы тканей глаза.
Наиболее близким к предлагаемому изобретению по технической сущности и достигаемому положительному эффекту  вл етс  ирисретрактор, содержащий руко тку и манипул тор с крючком 2.
Недостатком этого ирисретрактора  вл етс  его высока  травматичность, поскольку освобождение крючка после удалени  хрусталика сопровождаетс  раскрытием операционной раны, что может привести к выпадению стекловидного тела.
Целью изобретени   вл етс  повышение безопасности экстракции катаракты.
Поставленна  цель достигаетс  тем, что ирисретрактор, содержащий руко тку и манипул тор с крючком, снабжен механизмом фиксации крючка относительно манипул тора , при этом последний соединен с крючком при помощи щарнира.
При этом механизм фиксации содержит т гу, проход щую в трубчатом корпусе манипул тора и св занную со стороны руко тки с пружиной, а со стороны крючка оканчивающуюс  стопорными щтифтом, причем со стороны руко тки т га снабжена 15 прорезью, взаимодействующей с приводным рычагом, который входит в эту прорезь , а со стороны крючка в подвижном его элементе выполнена выемка, взаимодействующа  со щтифтом т ги.
На фиг. 1 изображен ирисретрактор, общий вид; на фиг. 2 - то же, рабоча  часть; на фиг. 3 - механизм фиксации.
Ирисретрактор состоит из манипул тора I и руко тки 2. Манипул тор 1 состоит
из трубчатого корпуса 3, соединенного с рабочей частью 4. Рабоча  часть 4 состоит из неподвижного 5 и подвижного 6 элементов , соединенных между собой шарниром 7. В полом корпусе 3 манипул тора 1,имеетс  т га 8 с фиксирующим штифтом 9 и пружиной 10. На т ге 8 установлен приводной рычаг 11. Подвижный элемент 6 с внутренней стороны имеет выемку 12. В руко тке 2 выполнена прорезь 13. Механизм фиксации подвижного элемента состоит из т ги 8, св занной с фиксирующим щтифтом 9 и с пружиной 10. При этом т га 8 взаимодействует с приводным рычагом 11, который входит в прорезь 13.
Ирисретрактор работает следующим образом .
Перед операцией подвижный элемент 6 рабочей части 4 устанавливаетс  перпендикул рно к неподвижному элементу 5. Дл  этого под действием пружины 10 т га 8 смещаетс  в сторону рабочей части 4. Фиксирующий штифт 9 входит в выемку 12 подвижного элемента 6. После выполнени  предварительных этапов операции ирисретрактор подвижным элементом 6 заводитс  за край зрачка глаза и радужна  оболочка отодвигаетс  вверх, обнажа  переднюю поверхность хрусталика. После извлечени  хрусталика с помощью приводного рычага Ijl, т га 8 сдвигаетс  в сторону руко тки 2. При этом фиксирующий штифт 9 выходит из выемки 12 подвижного элемента 6. Подвижный элемент 6, лишенный фиксации , свободно враща сь на шарнире 7, принимает продольное положение, освобожда  край радужной оболочки, котора  возФг/г . /
вращаетс  в исходное положение. После этого Ирисретрактор извлекаетс  из глаза. Изобретение позвол ет повысить атравматичность операции криоэкстракции катаракты . При его использовании случаи затруднений при выведении ирисретрактора практически исключаютс .

Claims (2)

1.Ирисретрактор, содержащий руко тку и манипул тор с крючком, отличающийс  тем, что, с целью повышени  безопасности операции экстракции катаракты, он снабжен механизмом фиксации крючка относительно манипул тора, при этом последний соединен с крючком при помощи шарнира.
2.Ирисретрактор по п. 1, отличающийс  тем, что механизм фиксации содержит т гу, проход щую в трубчатом корпусе манипул тора и св занную со стороны руко тки с пружиной, а со стороны крючка оканчивающуюс  стопорным щтифтом, причем со стороны руко тки т га снабжена прорезью, взаимодействующей с приводным рычагом, который входит в эту прорезь, а со стороны крючка в подвижном его элементе выполнена выемка, взаимодействующа  со штифтом т ги.
Источники информации, прин тые во внимание при экспертизе
1.Каталог «Инструменты дл  офтальмологии , В/О «Медэкспорт, № 6-118-02, стр. 28, Внещторгиздат.
2.Каталог фирмы Ганс Гейдер, 1976, 23, 15530.
SU813292251A 1981-06-15 1981-06-15 Ирисретрактор SU990220A1 (ru)

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US11849949B2 (en) 2021-09-30 2023-12-26 Covidien Lp Surgical stapling device with firing lockout member
US12023028B2 (en) 2022-02-07 2024-07-02 Covidien Lp Articulating surgical stapling apparatus with pivotable knife bar guide assembly
US12029418B2 (en) 2022-09-20 2024-07-09 Covidien Lp Surgical staples and end effectors for deploying the same
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