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SU659146A1 - Хирургический аппарат дл наложени анастомозов между полыми органами - Google Patents

Хирургический аппарат дл наложени анастомозов между полыми органами

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Publication number
SU659146A1
SU659146A1 SU742002442A SU2002442A SU659146A1 SU 659146 A1 SU659146 A1 SU 659146A1 SU 742002442 A SU742002442 A SU 742002442A SU 2002442 A SU2002442 A SU 2002442A SU 659146 A1 SU659146 A1 SU 659146A1
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spring
pusher
knife
bracket
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SU742002442A
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Владимир Павлович Золин
Сергей Михайлович Ерошин
Вадим Самсонович Лукьяненко
Валерий Александрович Пыжов
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Организация П/Я М-5237
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Description

1
Изобретение относитс  к медицинской технике, а именно к хирургическим сшивающим инструментам, и иредиазначено дл  наложени  круговых анастомозов на пищеварительном тракте.
Известен хирургический аппарат дл  наложени  анастомозов на пищеварительном тракте, содержащий скобочную головку с пазами дл  скобок, закрепленную в цилиндрическом корпусе, цилиндрический нож и толкатель, жестко закрепленные между собой, расположенные в скобочной головке, съемную упорную головку с матрицей дл  загиба скобок с лунками, регул тор зазора, привод толкател  и ножа и гибкую трубку 1.
При использовании аппарата руко тку привода упорной головки, ножа и толкател  необходимо вращать вручную последовательно в разных направлени х, с переключением муфты привода путем периодической подачи руко тки вдоль оси. Аппарат не позвол ет накладывать швы при крутых перегибах сшиваемых полых органов, а замедленное отведение упорной головки от скобочной зат гивает и осложн ет работу с аппаратом.
Целью изобретени   вл етс  обеспечение возможности наложени  швов при крутых перегибах сшиваемых полых органов, а также ускорение отвода упорной головки от скобочной.
Поставленна  цель достигаетс  тем, что привод толкател  и ножа размещен в скобочной головке и выполнен в виде цилиндрической пружины и подпружиненных фиксаторов , св занных с толкателем и ножом, на боковой поверхности рабочей головки выполнены отверсти , через которые проведены концы подпружиненных фиксаторов , заканчивающиес  кнопками управлени , механизм изменени  зазора прошивани  расположен в скобочной головке и выполнен в виде зубчатых подпружиненных рычагов с кнопкамп управлени  и зубчатой рейки, наход щихс  в зацеплении.
Кроме того, между упорной и скобочной головками расположена пружина сжати .
этом поверхность скобочной головки имеет эластичное покрытие.
На фиг. 1 изображен хирургический аппарат дл  наложени  анастомозов между полымп органами, продольный разрез; на фиг. 2 - сечение А-А фиг. 1.
Аппарат содержит цилиндрический корпус 1, скобочную головку 2, толкатель 3, нож 4, пружину 5, фиксаторы 6, рычаги 7, упорную головку 8, шток 9 с зубчатой рейкой 10, промежуточную втулку 11, крышку 12, упорную втулку 13, пружину 14, гибкую
трубку 15, эластичное покрытие в виде гибких полимерных пленок 16 и 17. К цилиндрическому корпусу 1 жестко креп тс  при помощи винтов 18 скобочна  головка 2, упорна  втулка 13, промеж)точна  втулка 11 и крып1ка 12. Движение толкател  3 и круглого ножа 4 направл ет скобочна  головка 2.
Толкатель 3 скобок имеет два радпал1 ио расположенны.х глухих отверсти , в которые вставлены фиксаторы 6 в виде штырей, содержаи ие пружииы 19. Соответственно в корпусе 1 имеютс  сквозпые отверсти , которые снаружи защищены гибкой иолимерной пленкой 16. Дл  удобства нажати  на фиксаторы 6 указанные отверсти  имеют зенковку. При вхождении фиксаторов 6 в отверсти  цилиндрического корпуса 1 толкатель 3 фиксируетс  в строго определенном положении. Круглый нож 4 жестко нрикреплен к толкателю 3. Между упорной втулкой 13 и толкателем 3 смонтирована пружина 5 сжати . Аккумулированна  энерги  пружины 5 используетс  дл  перемещени  толкател  3 совместно с ножом 4. Упорна  втулка 13 содержит два двуплечих рычага 7, которые удерживаютс  на ос х 20. Одни концы рычагов 7 имеют зубцы , при иомощи которых происходит сцепление с зубчатой рейкой 10, другие концы рычагов скруглены и выход т в виде кнопок управлени  в отверсти  цилиндрического корпуса 1. Рычаги 7 снабжены пружинами 21, которые удерживают рычаги в сцеплении с двусторонней рейкой 10. Во избежание случайного попадани  посторонних частиц в зазоры рычагов 7 над раззенкованными отверсти ми корпуса 1 установлена гибка  иолимерна  нленка 17. Эта иленка предохран ет также от случайного срабатывани  рычага при нажатии на него с малым усилием. Упорна  головка 8 иод действием гайки 22 может перемещатье  на щтоке 9, на котором затем фиксируетс  при помощи винта 23. Дл  обеспечени  положени  упорных лунок 24 против пазов скобок 25 на штоке 9 предусмотрены щпонки 26 и 27. Гайка 22 на своем фланце имеет лимб, по которому можно вести настройку зазора между упорной и скобочной головками . В расточку упорной головки 8 вставлена прокладка 28. Шток 9 содержит двустороннюю зубчатую рейку 10. Шток 9 заканчиваетс  прорезью дл  обеспечени  иружинени  выступов 29 при их прохождении через втулку 30. Величина сблил ени  между упорной головкой 8 и скобочной головкой 2 ограничиваетс  винтом 31. Промежуточна  втулка 11 имеет ступенчатую цилиндрическую полость, в которой наход тс  скольз ща  втулка 30 и пружина 14. При сн том щтоке 9 втулка 30 под действием нружины 14 отводитс  к упорной втулке 13. К крышке 12 крепитс  гибка  полимерна  трубка 15, с помощью которой
аппарат извлекают из сщитого пищеварительного тракта.
Аппарат работает следующим образом. Перед наложением анастомозов взвод т
пружину 5 путем нажати  через отверстие 32 на диск толкател  3, при этом фиксаторы () под дсйств 1ем иружппы 19 вход т li отверстие цилиндрического корпуса 1, удержива  таким образом толкатель скобок во взведенном положении. В пазы скобочных гпезд вставл ют скобки 25. Замер ют толщину сщиваемых тканей и устанавливают зазор между упорной головкой и скобочной головкой при помощи вращени  гайки 22, пользу сь при этом лимбовым устройством. Далее упорную головку 8 со щтоком 9 ввод т в просвет конца кишки , предварительно наметанного кисетным щвом, который затем зат гиваетс . Через
естественное отверстие (рот, пр мую кищку ) ввод т цилиндрический корпус 1, после чего конец присоедин емого органа зат гивают кисетным щвом на направл ющей втулке штока скобочной головки 2. Далее
ирисоедин ют к скобочной головке 2 упорную головку 8. Дл  этого шток 9 упорной головкн 8 продвигают во втулку 33 скобочной головки 2, при этом зубчата  рейка 10 за счет косой пилообразной формы зубьев
раздвигает рычаги 7, причем выступы 29 отвод т втулку 30 к упору, сжима  пружину 14. Как только втулка 30 коснетс  упора, то выступы 29 ирижмутс  и пройдут сквозь отверстие втулки 30. Па выходе из
втулки выступы 29 разжимаютс  и вход т в зацеиление с ее торцовой поверхностью. К этому моменту рычаги 7 своими зубь ми вход т в зубчатое зацепление рейки 10 и удерживают шток 9 е упориой головкой 8
от выдвижени . Аппарат готов дл  наложени  кругового аиаетомоза.
Хирург через ткань пищеварительного тракта нажимает на фиксаторы 6, утаплива  их в глухие отверсти  толкател  3; как
только фиксаторы 6 выйдут из зацеплени , пружина 5 сработает и переместит толкатель 3 с ножом 4 в сторону упорной головки 8. В это врем  толкатель 3 продвигает скобки 25, производ  сщивание ткани, заправленной между головками 2 и 8. Одновременно осуществл етс  кругова  вырезка ткани ножом 4. После наложени  кругового анасто.моза через ткань пищеварительного тракта пажимают на концы рычагов 7,
прогиба  при этом указанную ткань и полимерную пленку 17. Рычаги 7 своими зубь ми вывод тс  из зацеплени  с зубчатой рейкой 10. После разведени  рычагов 7 от зубчатой рейки пружипа 14 через втулку
30, шток 9 отводит упорную головку 8 от скобочной головки 2 на определенное рассто ние , гарантирующее сохранение целостноети иаложенного шва при протаскивании через него упорной головки (последн   при
этом удерживаетс  от продольного перемещени  выступами 29). Извлечсн е аппарата из сшитого пищевапителыпго ргкта осуществл етс  при помощи гибкой трубки 15.

Claims (3)

1. Хирургический аппарат дл  наложени  анастомозов между полыми органами, содержащий скобочную головку с пазами дл  скобок, упорную головку с матрицей дл  загиба скобок, толкатель, нож, механизм изменени  зазора прошивани , нривод толкател  и иожа, о т л и ч а о и; и и с   тем, что, с целью возможнскти )1ало ;-;сп;1  швов при крутых перегибах сшиваемых полых органов, привод толкател  и ножа размещен в скобочной головке и выполнен в виде цилиндрической пружины и подпружиненных фиксаторов, св занных с толкателем и ножом, на боковой поверхности
голожи выполнены отверсти , чере ксггоыс проведены концы подпружиненных фиксаторов, заканчивающиес  кнопками управлени , механизм изменени  зазора прошивани  расположен в скобочной головке и выполнен в виде зубчатых подпружиненных рычагов с кнопками управлени  и зубчатой рейки, наход щихс  в зацеплепни.
2. Аппарат по п. 1, отличающийс  тем, что. с целью }ткореии  отвода упорной головки от скобочной, между ними расиоложена пружина сжати .
3. Аппарат ио и. 1, о т л и ч а ю HUI йс  
тем, что иоверхность скобочной головки имеет гмасгичное покрытие.
1-1сточникп информац1 и, прин те во внимание при экспертизе 1. Авторское евидетельетво СССР
№ 284833, кл. А 61В 17/11, 1968.
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SU742002442A 1974-02-12 1974-02-12 Хирургический аппарат дл наложени анастомозов между полыми органами SU659146A1 (ru)

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