ES2560259T3 - Surco rebajado para mejor retención de sutura - Google Patents
Surco rebajado para mejor retención de sutura Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07292—Reinforcements for staple line, e.g. pledgets
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis, e.g. in a single operation
- A61B17/1155—Circular staplers comprising a plurality of staples
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07257—Stapler heads characterised by its anvil
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07271—Stapler heads characterised by its cartridge
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Abstract
Un cartucho (200), (122) de grapas para uso con un aparato de grapado quirúrgico, el cartucho de grapas comprende: un cuerpo de cartucho que define una pluralidad de ranuras (52), (152) de retención de grapas, el cuerpo de cartucho incluye una superficie de contacto con tejido (220), (134) que tiene al menos un surco rebajado (250), (155) definido en la misma; una grapa (50), (150) dispuesta dentro de cada ranura de retención de grapa del cuerpo de cartucho; un contrafuerte quirúrgico (500), (124) configurado y dimensionado para superponerse substancialmente al menos a una parte de las ranuras de retención de grapas del cuerpo de cartucho; y al menos una sutura (240), (140) dispuesta dentro del al menos un surco rebajado del cuerpo de cartucho y configurada para retener el contrafuerte quirúrgico encima de la superficie de contacto con tejido, caracterizada por que el al menos un surco rebajado (250), (155) del cartucho de grapas se extiende desde un primer canto exterior (248a) a un segundo canto exterior (248b) del cartucho de grapas pasando de ese modo transversalmente a través de la superficie de contacto con tejido del cartucho de grapas.
Description
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DESCRIPCION
Surco rebajado para mejor retencion de sutura
Antecedentes
Campo tecnico
La presente descripcion esta relacionada con un aparato de grapado quirurgico que incluye contrafuertes quirurgicos que se pueden conectar de manera liberable al aparato de grapado quirurgico, y, en particular, a un aparato de grapado quirurgico que tiene suturas dispuestas dentro de surcos rebajados en el mismo. Las suturas juntan el contrafuerte quirurgico al aparato de grapado quirurgico de manera que el contrafuerte quirurgico se libere tras disparar el aparato de grapado quirurgico.
Antecedentes de la tecnica relacionada
En la tecnica se conocen instrumentos de grapado quirurgico que se utilizan para aplicar secuencial o simultaneamente una o mas filas de sujetadores para juntar segmentos de tejidos corporales. Los sujetadores tfpicamente son en forma de grapas quirurgicas pero tambien se pueden utilizar sujetadores polimericos de dos piezas. Dichos dispositivos generalmente incluyen un par de mordazas para sujetar entre las mismas los tejidos corporales que se van a juntar. Tfpicamente, uno de los miembros de mordaza incluye un cartucho de grapas que alberga una pluralidad de grapas dispuestas en al menos dos filas laterales, mientras que el otro miembro de mordaza tiene una placa de yunque que define una superficie para formar las patas de grapa a medida que las grapas son impulsadas desde el cartucho de grapas.
Cuando se acciona el instrumento de grapado, unas levas que se trasladan longitudinalmente contactan con miembros impulsores de grapa en una de las mordazas que a su vez actuan en empujadores de grapas para eyectar secuencial o simultaneamente las grapas desde el cartucho de grapas. Una hoja puede desplazarse entre las filas de grapas para cortar longitudinalmente y/o abrir el tejido grapado entre las filas de grapas. Dichos instrumentos se describen, por ejemplo, en la patente de Ee.UU. n° 3.079.606 y en la patente de EE.UU. n° 3.490.675.
Cuando se grapan tejidos relativamente delgados y fragiles, es importante sellar eficazmente la lmea de grapas contra fugas de aire o fluido. Adicionalmente, a menudo es necesario reforzar la lmea de grapas contra el tejido para impedir desgarros en el tejido o tirones de las grapas a traves del tejido. Un metodo para impedir desgarros y tirones implica la colocacion de un material reforzador de tela biocompatible, o “contrafuerte quirurgico”, entre la grapa y el tejido subyacente. En este metodo, una capa de contrafuerte quirurgico se coloca contra el tejido y el tejido se grapa de una manera convencional a traves del contrafuerte quirurgico. En metodos mas recientes, la capa del contrafuerte quirurgico se coloca en el propio instrumento de grapado antes de grapar el tejido. Algunas grapadoras quirurgicas utilizan sujetadores o clips para conectar temporalmente contrafuertes quirurgicos a cada una de las mordazas de las grapadoras, es decir, uno dispuesto en el cartucho de grapas y el otro en la placa de yunque.
La presente solicitud describe un sistema de retencion para asegurar contrafuertes quirurgicos en las mordazas de la grapadora. El sistema de retencion permite que los contrafuertes quirurgicos se aseguren a la superficie de contacto con tejido del cartucho de grapas y la placa de yunque utilizando suturas dispuestas dentro de surcos rebajados a lo largo de las superficies de contacto con tejido de cada uno del cartucho de grapas y la placa de yunque. Este sistema de retencion disminuye la probabilidad de liberacion de sutura prematura durante el ensamblaje, empaquetado o disparo.
El documento EP2311386A2 describe un cartucho de grapas segun el preambulo de la reivindicacion 1.
Compendio
La presente invencion se refiere a un cartucho de grapas segun la reivindicacion 1. Realizaciones preferidas se relatan en las reivindicaciones dependientes.
Segun un aspecto de la presente descripcion, un efector final para uso con una grapadora quirurgica que comprende un cartucho de grapas que tiene una superficie de contacto con tejido que tiene al menos un surco rebajado definido en la misma y una placa de yunque que tiene una superficie de contacto con tejido que tiene al menos un surco rebajado definido en la misma.
Un contrafuerte quirurgico dispuesto de manera liberable en las superficies de contacto con tejido de cada uno del cartucho de grapas y la placa de yunque. Se dispone al menos una sutura dentro del al menos un surco rebajado de cada uno del cartucho de grapas y la placa de yunque y configurada para retener el contrafuerte quirurgico respectivo encima de la respectiva superficie de contacto con tejido. Preferiblemente, el al menos un surco rebajado del cartucho de grapas se extiende desde un primer canto lateral exterior a un segundo canto lateral exterior del cartucho de grapas y el al menos un surco rebajado de la placa de yunque se extiende desde un primer canto lateral exterior a un segundo canto lateral exterior de la placa de yunque. Un surco rebajado proximal esta colocado a lo
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largo de una parte proximal de cada uno del cartucho de grapas y la placa de yunque, y un surco rebajado distal esta colocado a lo largo de una parte distal de cada uno del cartucho de grapas y la placa de yunque.
Cada uno del cartucho de grapas y la placa de yunque tiene una ranura longitudinal central configurada para permitir un paso de una hoja de cuchilla a traves de la misma. El surco rebajado proximal esta colocado distalmente de un extremo proximal de la ranura longitudinal central en cada uno del cartucho de grapas y la placa de yunque. El surco rebajado distal esta colocado proximalmente de un extremo distal de la ranura longitudinal central en cada uno del cartucho de grapas y la placa de yunque.
En realizaciones alternativas, el surco rebajado distal esta colocado distalmente de un extremo distal de la ranura longitudinal central en cada uno del cartucho de grapas y la placa de yunque.
En otro aspecto de la presente descripcion, un cartucho de grapas para uso con un aparato de grapado quirurgico que comprende un cuerpo de cartucho que incluye una superficie de contacto con tejido que define una pluralidad de ranuras de retencion de grapas y que tiene al menos un surco rebajado definido en la misma en donde se dispone una grapa dentro de cada ranura de retencion de grapa del cuerpo de cartucho. Un contrafuerte quirurgico configurado y dimensionado para superponerse substancialmente a al menos una parte de las ranuras de retencion de grapa del cuerpo de cartucho y al menos una sutura dispuesta dentro del al menos un surco rebajado del cuerpo de cartucho y configurada para retener el contrafuerte quirurgico encima de la superficie de contacto con tejido. Preferiblemente, el al menos un surco rebajado se extiende desde un primer canto lateral exterior a un segundo canto lateral exterior del cartucho de grapas.
En realizaciones, un surco rebajado proximal esta colocado a lo largo de una parte proximal de cada uno del cartucho de grapas y un surco rebajado distal esta colocado a lo largo de una parte distal de cada uno del cartucho de grapas. El cartucho de grapas tiene una ranura longitudinal central configurada para permitir un paso de una hoja de cuchilla a traves de la misma. El surco rebajado proximal esta colocado distalmente de un extremo proximal de la ranura longitudinal central en el cartucho de grapas. El surco rebajado distal esta colocado proximalmente de un extremo distal de la ranura longitudinal central en el cartucho de grapas.
En todavfa otro aspecto de la presente descripcion, un aparato de grapado quirurgico, que comprende un alojamiento y un efector final que esta asegurado en el alojamiento que tiene un conjunto de cartucho de grapas que tiene una superficie de contacto con tejido y un conjunto de yunque que tiene una superficie de contacto con tejido, cada una de las superficies de contacto con tejido del conjunto de cartucho de grapas y el conjunto de yunque tiene al menos un surco rebajado extendido transversalmente. Un contrafuerte quirurgico configurado y dimensionado para superponerse substancialmente al menos a una parte de la superficie de contacto con tejido de al menos uno del conjunto de cartucho de grapas y el conjunto de yunque. Una sutura se dispone dentro del al menos un surco rebajado de cada una de las superficies de contacto con tejido del conjunto de cartucho de grapas y la placa de yunque y esta configurada para retener el contrafuerte quirurgico respectivo encima de la respectiva superficie de contacto con tejido. Preferiblemente, un surco rebajado proximal esta colocado a lo largo de una parte proximal de cada uno del cartucho de grapas y la placa de yunque, y un surco rebajado distal esta colocado a lo largo de una parte distal de cada uno del cartucho de grapas y la placa de yunque.
Breve descripcion de los dibujos
En esta memoria se describen diversas realizaciones de los sistemas de retencion descritos actualmente con referencia a los dibujos, en donde:
La figura 1 es una vista en perspectiva de un aparato de grapado quirurgico segun una realizacion de la presente descripcion;
La figura 2 es una vista en perspectiva, con piezas separadas, de un conjunto de cartucho de grapas del aparato de grapado quirurgico de la figura 1, que ilustra un contrafuerte quirurgico asociado con el mismo;
La figura 3 es una vista en perspectiva, con piezas separadas, de un conjunto de yunque del aparato de grapado quirurgico de la figura 1, que ilustra un contrafuerte quirurgico asociado con el mismo;
La figura 4 es una vista en perspectiva del conjunto de cartucho de grapas, que ilustra el contrafuerte quirurgico fijado al cartucho de grapas de la figura 2;
La figura 5 es una vista en perspectiva del conjunto de yunque, que ilustra el contrafuerte quirurgico fijado a la placa de yunque de la figura 3;
La figura 6 es una vista en perspectiva de un extremo distal del aparato de grapado quirurgico de la figura 1, mostrado en uso colocado alrededor de una seccion de tejido;
La figura 7 es una vista en seccion transversal tomada a lo largo de la lmea 7-7 de la figura 6;
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La figura 7A es un area ampliada del detalle representado en la figura 7;
La figura 8 es una vista en perspectiva de la seccion de tejido grapada y dividida de la figura 6;
La figura 9A es una vista en perspectiva de una realizacion ilustrativa de un aparato de grapado quirurgico segun otra realizacion de la presente descripcion;
La figura 9B es una vista en alzado lateral parcialmente rota del aparato de grapado quirurgico de la figura 9A;
La figura 10A es una vista en perspectiva de una realizacion ilustrativa del conjunto de cartucho de grapas del aparato de grapado quirurgico de la figura 9A que incluye un contrafuerte quirurgico segun una realizacion de la presente descripcion;
La figura 10B es una vista en planta superior del conjunto de cartucho de grapas y el contrafuerte quirurgico ilustrados en la figura 10A;
La figura 11 es una vista en perspectiva de un area intestinal de un paciente, que ilustra un metodo para colocar una varilla de yunque y un conjunto de cartucho de grapas del aparato de grapado quirurgico de las figuras 9A, 9B y 10 dentro del area intestinal; y
La figura 12 es una vista en perspectiva esquematica del area intestinal de la figura 11, que ilustra la varilla de yunque montada en el aparato de grapado quirurgico.
Descripcion detallada de las realizaciones
Diversas realizaciones ejemplares de la presente descripcion se tratan en esta memoria mas adelante desde el punto de vista de contrafuertes quirurgicos para uso con aparato de grapado quirurgico. Los contrafuertes quirurgicos descritos en esta memoria se pueden utilizar para sellar una herida al aproximar los cantos de tejido de herida entre un cartucho de grapas y una placa de yunque de un aparato de grapado quirurgico que contiene al menos un contrafuerte quirurgico. El al menos un contrafuerte quirurgico se junta al aparato de grapado quirurgico mediante al menos una sutura dispuesta dentro de un surco rebajado de una superficie de contacto con tejido de cada uno de un cartucho de grapas y una placa de yunque. El disparo del aparato de grapado quirurgico fuerza a las patas de al menos una grapa a pasar a traves de una abertura en el cartucho de grapas, el tejido y las aberturas en la placa de yunque para asegurar el contrafuerte quirurgico en el tejido, para asegurar un tejido colindante con otro, y para sellar el tejido. La fuerza de disparo de la grapa impacta en la sutura para liberar la sutura del surco rebajado liberando de ese modo el contrafuerte quirurgico de la superficie de contacto con tejido. Asf, la presente descripcion describe contrafuertes quirurgicos, aparato de grapado quirurgico que soporta dichos contrafuertes quirurgicos, y metodos y mecanismos para utilizar los mismos.
Se debe entender que se puede utilizar una variedad de aparatos de grapado quirurgico con un contrafuerte quirurgico de la presente descripcion. Por ejemplo, se pueden utilizar configuraciones de grapadora lineal, tales como, por ejemplo, las que incluyen recargas Duet TRS™ y grapadoras con tecnologfa Tri-Staple™, disponibles en Covidien, que mantiene un lugar principal de negocio en 555 Long Wharf Drive, North Haven, CT 06511, y grapadoras de anastomosis transversales, tales como, por ejemplo, EEA™, CEEA™, GIA™, EndoGIA™ y TA™, tambien disponibles por Covidien. Tambien se debe apreciar que los principios de la presente descripcion son igualmente aplicables a grapadoras quirurgicas que tienen configuraciones alternativas, tales como, por ejemplo, grapadoras de anastomosis de extremo con extremo que tienen un cartucho y yunque circulares (vease, p. ej., la patente de EE.UU. n° 5.915.616, de propiedad comun, titulada “Surgical Fastener Applying Apparatus,”); grapadoras laparoscopicas (vease, p. ej., las patentes de EE.UU. nos. 6.330.965 y 6.241.139, de propiedad comun, cada una titulada “Surgical Stapling Apparatus”); y grapadoras de anastomosis transversales (vease, p. ej., las patentes de EE.UU. nos. 5.964.394 y 7.334.717, de propiedad comun, cada una titulada “Surgical Fastener Applying Apparatus”).
Ahora se describiran en detalle realizaciones del contrafuerte quirurgico y del aparato de grapado quirurgico descritos actualmente, con referencia a las figuras de dibujos, en donde numerales de referencia semejantes identifican elementos similares o identicos. En la siguiente exposicion, los terminos “proximal” y “atrasado” se pueden emplear de manera intercambiable, y se deben entender como referidos a la parte de una estructura que esta mas cerca de un clmico durante un uso correcto. Los terminos “distal” y “adelantado” tambien se pueden emplear de manera intercambiable, y se deben entender como referidos a la parte de una estructura que esta mas lejos de un clmico durante un uso correcto. Tal como se emplea en esta memoria, el termino “paciente” se debe entender como referido a un sujeto humano u otro animal, y el termino "clmico" se debe entender como referido a un medico, enfermero u otro profesional medico y puede incluir al personal de asistencia.
Haciendo referencia ahora a la figura 1, se describe un aparato de grapado quirurgico o grapadora quirurgica 10 ejemplar para uso en grapado de tejido y aplicacion de un material de contrafuerte o contrafuerte quirurgico al tejido. Un ejemplo redundante de este tipo de instrumento de grapado quirurgico se describe en la patente de EE.uU. n° 7.128.253.
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El aparato de grapado quirurgico 10 generalmente incluye un asidero 12 que tiene un miembro tubular alargado 14 que se extiende distalmente desde el asidero. 12. Un conjunto de efector final 16 esta montado en un extremo distal 18 del miembro tubular alargado 14. El conjunto de efector final 16 incluye una primera mordaza o conjunto 200 de cartucho de grapas configurado para recibir un cartucho 32 de grapas en el mismo y una segunda mordaza o conjunto de yunque 300. El conjunto de efector final 16 se puede fijar permanentemente al miembro tubular alargado 14 o puede ser desconectable y asf sustituible por un nuevo conjunto de efector final 16. Uno del conjunto de cartucho 200 de grapas y el conjunto de yunque 300 esta montado de manera movible en el extremo distal 18 del conjunto de efector final 16, y es movible entre una posicion de apertura espaciada de otra posicion de cierre substancialmente adyacentes entre sf El conjunto de yunque 300 soporta una placa 302 de yunque y esta fabricado de un material metalico, incluyendo y no limitado a acero inoxidable, titanio, aleacion de titanio y similares. Al menos una superficie de contacto con tejido del cartucho 32 de grapas esta fabricada de un material distinto a metal, incluyendo y no limitado a plastico, termoplastico, resina, policarbonato y similares.
El aparato de grapado quirurgico 10 incluye ademas un gatillo 33, como se ve en la figura 1, montado de manera movible en el asidero 12. El accionamiento del gatillo 33 funciona inicialmente para mover la primera mordaza y la segunda mordaza entre las posiciones de apertura y de cierre y acciona simultaneamente el aparato de grapado quirurgico 10 para aplicar lmeas de grapas al tejido. Con el fin de orientar apropiadamente el conjunto de efector final 16 con relacion al tejido que se va a grapar, el aparato de grapado quirurgico 10 esta provisto adicionalmente de un mando de rotacion 34 montado en el asidero 12. La rotacion del mando de rotacion 34 relativa al asidero 12 hace rotar el miembro tubular alargado 14 y el conjunto de efector final 16 con respecto al asidero 12 para orientar apropiadamente el conjunto de efector final 16 con respecto al tejido que se va a grapar.
Se proporciona un impulsor 36, como se ve en las figuras 6 y 7A, para mover aproximando la primera mordaza o conjunto de cartucho 200 de grapas y la segunda mordaza o conjunto de yunque 300 desde la posicion de apertura a la posicion de cierre. El impulsor 36 se mueve a traves de una ranura longitudinal 338 (figura 3) formada en la placa 302 de yunque del conjunto de yunque 300. Una cuchilla 30 con hoja 31 de cuchilla esta asociada con el impulsor 36 para cortar tejido capturado entre el conjunto de cartucho 200 de grapas y el conjunto de yunque 300 a medida que el impulsor 36 pasa a traves de la ranura 338.
Se puede hacer referencia a las patentes de EE.UU. nos. 5.915.616, 6.330.965 y 6.241.139, de propiedad comun, referenciadas anteriormente, para obtener una exposicion detallada de la construccion y el funcionamiento de un aparato de grapado quirurgico 10 ejemplar.
El conjunto de cartucho 200 de grapas y/o el conjunto de yunque 300 pueden estar provistos de un contrafuerte quirurgico 500. El contrafuerte quirurgico 500 se proporciona para reforzar y sellar las lmeas de grapas aplicadas al tejido por el aparato de grapado quirurgico 10. El contrafuerte quirurgico 500 se puede configurar en cualquier forma, tamano o dimension adecuados para encajar en cualquier aparato de grapado quirurgico, sujecion o disparo.
El conjunto de cartucho 200 de grapas esta provisto de un contrafuerte 500a de cartucho y el conjunto de yunque 300 esta provisto de un contrafuerte 500b de yunque de las maneras descritas con mayor detalle mas adelante. Los contrafuertes quirurgicos 500a, 500b se pueden hacer de cualquier material biocompatible sintetico o natural. El material del que se forman los contrafuertes quirurgicos 500a, 500b puede ser bioabsorbible o no bioabsorbible. Se debe entender que para formar el contrafuerte quirurgico se puede utilizar cualquier combinacion de materiales naturales, sinteticos, bioabsorbibles y no bioabsorbibles. Los contrafuertes quirurgicos 500a, 500b pueden ser porosos o no porosos, combinacion de capas porosas y no porosas. Los contrafuertes quirurgicos no porosos 500a, 500b se pueden utilizar para retardar o impedir el crecimiento entrante de tejido desde tejidos circundantes, actuando de ese modo como barrera de adhesion e impidiendo la formacion de tejido cicatrizal no deseado.
Materiales ejemplares adicionales para contrafuertes quirurgicos 500a, 500b para uso con los dispositivos de grapado quirurgico descritos en esta memoria se presentan en las patentes de EE.UU. cedidas comunmente nos. 5.542.594; 5.908.427; 5.964.774; y 6.045.560, y las publicaciones de solicitud de EE.UU., cedidas comunmente, nos. 2006/0085034, presentada el 20 de abril de 2006; y 2006/0135992, presentada el 22 de junio de 2006.
Como se ilustra en la realizacion actual y se muestra en las figuras 2 y 3, el contrafuerte quirurgico 500 se conecta de manera liberable al conjunto de cartucho 200 de grapas y/o al conjunto de yunque 300 mediante un sistema de retencion 230, 330 de contrafuerte que incluye suturas 240, 340 que fijan los contrafuertes quirurgicos 500a, 500b a las superficies de contacto con tejido u orientadas hacia dentro 220, 320 del cartucho 32 de grapas y/o la placa 302 de yunque, como se trata en detalle mas adelante.
Con referencia a figuras 2 y 4, el contrafuerte 500a de cartucho del conjunto de cartucho 200 de grapas se asegura funcionalmente a una superficie de contacto con tejido 220 del cartucho 32 de grapas mediante un sistema de retencion 230 de contrafuerte de cartucho que incluye suturas 240 colocadas dentro de surcos rebajados 250. El contrafuerte 500a de cartucho esta dispuesto entre la sutura 240 y la superficie de contacto con tejido 220. El conjunto de cartucho 200 de grapas incluye ademas un primer canto exterior 248a y un segundo canto exterior 248b. Como se muestra en la figura 2, el surco rebajado 250 se extiende desde el primer canto exterior 248a al segundo
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canto exterior 248b de manera que el surco rebajado 250 pasa transversalmente a traves de la superficie de contacto con tejido 220. Preferiblemente, un surco rebajado proximal 250a esta dispuesto a lo largo de una parte proximal 260 de la superficie de contacto con tejido 220. Similarmente, un surco rebajado distal 250b esta dispuesto a lo largo de una parte distal 262 de la superficie de contacto con tejido 220. Se dispone sutura proximal 240a dentro del surco rebajado proximal 250a y pasa transversalmente a traves del contrafuerte 500a de cartucho y la parte proximal 260 de la superficie de contacto con tejido 220 del cartucho 32 de grapas. De la misma manera, se dispone sutura distal 240b dentro del surco rebajado proximal distal 250b y pasa transversalmente a traves del contrafuerte 500b de cartucho y la parte distal de la superficie de contacto con tejido 220 del cartucho 32 de grapas. Las suturas proximal y distal 240a, 240b dispuestas dentro de los respectivos surcos rebajados proximal y distal 250a, 250b mantienen el contrafuerte 500b de cartucho con seguridad a lo largo de la superficie de contacto con tejido 220 del cartucho 32 de grapas antes del disparo de la grapadora 10.
Con referencia a las figuras 3 y 5, y similar al contrafuerte 500a de cartucho, el contrafuerte 500b de yunque se asegura funcionalmente a una superficie de contacto con tejido 320 de la placa 302 de yunque mediante un sistema de retencion 330 de contrafuerte de yunque que incluye suturas 340 colocadas dentro de surcos rebajados 350a, 350b sobre un extremo proximal 360 y un extremo distal 362, respectivamente, de la superficie de contacto con tejido 320. Se dispone sutura proximal 340a dentro del surco rebajado proximal 350a y pasa transversalmente a traves del contrafuerte 500b de yunque y la parte proximal 360 de la superficie de contacto con tejido 320 de la placa 302 de yunque desde un tercer canto exterior 348a a un cuarto canto exterior 348b. De la misma manera, se dispone sutura distal 340b dentro del surco rebajado distal 350b y pasa transversalmente a traves del contrafuerte 500b de yunque y la parte distal de la superficie de contacto con tejido 320 de la placa 302 de yunque desde un tercer canto exterior 348a a un cuarto canto exterior 348b.
En realizaciones, se contempla que los surcos rebajados 250, 350 se puedan disponer en diversas posiciones a lo largo de superficies de contacto con tejido 220, 320 relativas a ranuras longitudinales centrales 238, 338 del cartucho 32 de grapas y la placa 320 de yunque. Mas espedficamente, como se muestra en la figura 2, el surco rebajado proximal 250a esta dispuesto distalmente de un extremo proximal de la ranura longitudinal central 238 del cartucho 32 de grapas. El surco rebajado distal 250b esta dispuesto proximalmente de un extremo distal de la ranura longitudinal central 238. Similarmente, como se muestra en la figura 3, el surco rebajado proximal 350a de la placa 320 de yunque esta dispuesto distalmente de un extremo proximal de la ranura longitudinal central 338 y el surco rebajado distal 350b esta dispuesto proximalmente de un extremo distal de la ranura longitudinal central 338. En esta realizacion, cuando se acciona la hoja 31 de cuchilla para cortar tejido capturado entre el conjunto de cartucho 200 de grapas y el conjunto de yunque 300, la hoja 31 de cuchilla tambien corta las suturas 240, 340.
Las figuras 4 y 5 ilustran los contrafuertes quirurgicos 500a, 500b asegurados encima de las respectivas superficies de contacto con tejido 220, 320 del cartucho 32 de grapas y la placa 302 de yunque. Las figuras 4 y 5 tambien ilustran una realizacion alternativa en donde las suturas 240 y 340 estan dispuestas pasando los extremos distales de las ranuras longitudinales centrales 238, 338. Mas espedficamente, como se muestra en la figura 4, el surco rebajado distal 250b esta dispuesto distalmente de un extremo distal de la ranura longitudinal central 238. Similarmente, como se muestra en la figura 5, el surco rebajado distal 350b esta dispuesto distalmente de un extremo distal de la ranura longitudinal central 338. En esta realizacion, la fuerza del conjunto de efector final 16 que se abre tras el disparo de grapas 50 libera las suturas 240, 340 de los respectivos surcos rebajados 250 y asf libera el contrafuerte 500a, 500b de las respectivas superficies de contacto con tejido 220, 320 del cartucho 32 de grapas y la placa 302 de yunque.
En realizaciones alternativas se contemplan sistemas de retencion adicionales de surcos rebajados con suturas colocadas a lo largo de las superficies de contacto con tejido. Un surco rebajado central de este tipo (no se muestra) se coloca entre los surcos rebajados proximal y distal de cada una de las superficies de contacto con tejido del cartucho de grapas y la placa de yunque para asegurar aun mas los contrafuertes quirurgicos al mismo. Se contempla ademas que se puedan formar perforaciones o lmeas de debilidad en los contrafuertes 500a, 500b con el fin de que partes de los contrafuertes 500a, 500b se desgarren con la apertura del conjunto de efector final 16.
Durante el ensamblaje los contrafuertes quirurgicos 500a, 500b se colocan sobre cada una de las superficies de contacto con tejido 220, 320 del conjunto de cartucho 200 de grapas y el conjunto de yunque 300, respectivamente. Las suturas 240, 340 se aseguran luego en respectivos surcos rebajados 250, 350 asegurando de ese modo los contrafuertes quirurgicos 500a, 500b por debajo de las respectivas suturas 240, 340 y parcialmente dentro del respectivo surco rebajado 250, 350 de las superficies de contacto con tejido 220, 320 (figura 7A). Esto permite a los contrafuertes quirurgicos 500a, 500b permanecer asegurados a lo largo de las superficies de contacto con tejido 220, 320. Despues de asegurar las suturas 240, 340 dentro del surco rebajado 250, 350, las suturas tambien se pueden adherir al cartucho 32 de grapas y/o a la placa 302 de yunque mediante metodos de adhesion conocidos, tales como soldadura ultrasonica, soldadura laser, adhesion con disolvente o prensado en caliente. Las suturas tambien se pueden conectar al cartucho de grapas y/o a la placa de yunque utilizando adhesivo. En ciertas realizaciones, el contrafuerte quirurgico 500a y/o el contrafuerte quirurgico 500b se conectan al cartucho de grapas y/o a la placa de yunque utilizando metodos de adhesion tales como soldadura ultrasonica, soldadura laser, adhesion con disolvente o prensado en caliente, o utilizando un adhesivo.
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Como se ilustra en figura 6, durante el uso del aparato de grapado quirurgico 10, la primera mordaza o conjunto de cartucho 200 de grapas y la segunda mordaza o conjunto de yunque 300, que tienen los contrafuertes quirurgicos 500a, 500b cargados en los mismos (como se ha descrito anteriormente) se colocan a cada lado del lugar quirurgico. Los contrafuertes quirurgicos 500a, 500b colocados encima de las superficies de contacto con tejido 220, 320 del conjunto de cartucho 200 de grapas y el conjunto de yunque 300 se colocan adyacentes a capas de tejido “T” que se van a sujetar entre sf
Como se muestra en la figura 7, el conjunto de cartucho 200 de grapas incluye grapas quirurgicas 50 colocadas dentro de ranuras individuales 52 de retencion de grapas del cartucho 32 de grapas. Las grapas 50 son de tipo convencional e incluyen un lomo 54 que tiene un par de patas 56 y 58 que se extienden desde el lomo 54. Las patas 56 y 58 terminan en extremidades penetrantes de tejido 60 y 62, respectivamente. Unos empujadores 64 estan ubicados dentro de ranuras 52 de retencion de grapas y estan colocados entre grapas 50 y el recorrido de una barra impulsora 66.
En la realizacion ilustrada, el aparato de grapado quirurgico 10 es accionado inicialmente por el movimiento del gatillo 33 relativo al asidero 12 (figura 1) provocando que el impulsor 36 se mueva en la direccion de la flecha “A” (figura 6), y contra el canto inclinado 21 de la placa 302 de yunque provocando de ese modo que el conjunto de yunque 300 se mueva a la posicion de cierre relativa al conjunto de cartucho 200 de grapas. A medida que la barra impulsora 66 avanza distalmente dentro del cartucho 32 de grapas, la barra impulsora 66 insta a los empujadores 64 hacia arriba contra el lomo 54 de las grapas 50 impulsando las patas 56 y 58 de las grapas 50 a traves del contrafuerte 500a de cartucho, el tejido “T”, y el contrafuerte 500b de yunque, hacia huecos 68 formadores de grapa en la placa 302 de yunque del conjunto de yunque 300. Las extremidades 60 y 62 de penetracion en tejido de las patas 56 y 58 de grapa se doblan dentro de huecos 68 formadores de grapa en la placa 302 de yunque con el lomo 54 asegurando el contrafuerte quirurgico 500 contra el tejido “T”.
Con un accionamiento completo del aparato de grapado quirurgico 10, se puede utilizar una cuchilla 30 (figura 7) asociada con el aparato de grapado quirurgico 10 y llevada por el impulsor 36 para cortar tejido “T”, asf como contrafuertes quirurgicos 500a, 500b entre las filas de grapas 50 ahora formadas. Con el movimiento del conjunto de yunque 300 a la posicion de apertura, espaciado del conjunto de cartucho 200 de grapas, los contrafuertes quirurgicos 500a, 500b se atraen o rompen de las respectivas superficies de contacto con tejido 220, 320 del respectivo conjunto de cartucho 200 de grapas y conjunto de yunque 300. Como se detalla en la figura 7A, el contrafuerte 500b de yunque se muestra asegurado a la superficie de contacto con tejido 320 por la sutura 340 dentro del rebaje proximal 250a. De una manera similar el contrafuerte 500a de cartucho se asegura a la superficie de contacto con tejido 220 mediante sutura. A medida que conjunto de yunque 300 y conjunto de cartucho 200 de grapas se separan, la sutura 240 se libera de su rebaje proximal 250a y de ese modo libera el contrafuerte 500b de yunque. En realizaciones, la sutura 240 se corta o secciona por el paso de la hoja 31 de cuchilla de la cuchilla 30 a traves de ranuras longitudinales 238, 338.
En la figura 8 se ilustra el tejido resultante “T”, dividido y cerrado con grapas 50. Espedficamente, los contrafuertes quirurgicos 500a, 500b son asegurados contra el tejido “T” por patas 56, 58 y lomos 54 de las grapas 50. Asf, los contrafuertes quirurgicos 500a, 500b se grapan en el tejido “T” sellando de ese modo y reforzando las lmeas de grapas creadas por las grapas 50.
Haciendo referencia ahora a las figuras 9A y 9B, se muestra un aparato de grapado quirurgico anular 110, para uso con contrafuertes quirurgicos 124 de la presente descripcion. El aparato de grapado quirurgico 110 incluye un conjunto de asidero 112 que tiene al menos un miembro de asidero de accionamiento pivotable 133, y un miembro de avance 135. Extendiendose desde el miembro de asidero 112, se proporciona una parte de cuerpo tubular 114 que se puede construir para tener una forma curvada a lo largo de su longitud. La parte de cuerpo tubular puede ser recta, curvada, flexible o tener otras formas. La parte de cuerpo 114 termina en un conjunto de cartucho 122 de grapas que incluye un par de distribuciones anulares de ranuras 152 de retencion de grapas que tienen una grapa 150 dispuesta en cada una de las ranuras 152 de retencion de grapas. Colocado distalmente del cartucho 122 de grapas se proporciona un conjunto de yunque 120 que incluye un miembro de yunque 121 y un vastago 123 asociado funcionalmente con el mismo para conectar de manera desmontable el conjunto de yunque 120 a una parte extrema distal del aparato de grapado 110.
El conjunto de cartucho 122 de grapas se puede conectar fijamente al extremo distal de la parte de cuerpo tubular 114 o se puede configurar para encajar concentricamente dentro del extremo distal de la parte de cuerpo tubular 114. El conjunto de cartucho 122 de grapas incluye un empujador 164 de grapas que incluye una parte proximal que tiene una forma generalmente troncoconica y una parte distal que define dos anillos concentricos de dedos espaciados perifericamente (no se muestra), cada uno de los cuales es recibido dentro de una respectiva ranura 152 de retencion de grapa. El cartucho de grapas se puede configurar para ser desmontable y sustituible.
Una cuchilla 130, substancialmente en forma de copa abierta con el borde de la misma definiendo una hoja 131 de cuchilla, se dispone dentro del conjunto de cartucho 122 de grapas y se monta en una superficie distal de un empujador 164 de grapa. La cuchilla 130 esta dispuesta radialmente hacia dentro del par de distribuciones anulares
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de grapas 150. Por consiguiente, en uso, a medida que se hace avanzar el empujador 164 de grapas, la cuchilla 130 tambien avanza axialmente en sentido distal.
Como se ve en las figuras 10A y 10B, un contrafuerte quirurgico 124 esta conectado de manera liberable al conjunto de cartucho 122 de grapas en surcos rebajados 155 definidos dentro de la superficie de contacto con tejido 134 del conjunto de cartucho 122 de grapas. Se contempla que cada surco rebajado 155 se extienda en una direccion radial y completamente a traves de las superficies de contacto con tejido del conjunto de yunque 120 y del conjunto de cartucho 122 de grapas. Como se describe anteriormente en la presente memoria, se colocan suturas 140 dentro de los surcos rebajados 155 para asegurar el contrafuerte quirurgico 124 a la superficie de contacto con tejido 134. El contrafuerte quirurgico 124 se proporciona en una configuracion anular e incluye una abertura central 125 para recibir el vastago 123 del conjunto de yunque 120 a traves del mismo.
Se concibe que el contrafuerte quirurgico 124 se pueda conectar o adherir adicionalmente o como alternativa a la superficie de contacto con tejido de la placa de yunque 121 de una manera similar al contrafuerte quirurgico 124 conectado al conjunto de cartucho 122 de grapas. El contrafuerte se puede conectar utilizando metodos de adhesion tales como soldadura ultrasonica, soldadura laser, adhesion con disolvente o prensado en caliente. El contrafuerte tambien se puede conectar al cartucho de grapas y/o a la placa de yunque utilizando adhesivo. En ciertas realizaciones, se utiliza sutura como se ha descrito anteriormente y la sutura se conecta utilizando metodos de adhesion tales como soldadura ultrasonica, soldadura laser, adhesion con disolvente o prensado en caliente. La sutura tambien se puede conectar utilizando adhesivo.
El contrafuerte quirurgico 124 se puede conectar o adherir al cartucho 122 de grapas mediante suturas 140 que se extienden entre el canto periferico o parte interior 160 y el canto periferico o parte exterior 162 del cartucho 122 de grapas. Se concibe que se puedan utilizar otras configuraciones de colocacion de surcos rebajados 155 y suturas 140 para retener el contrafuerte quirurgico 124 en el conjunto de cartucho 122 de grapas.
El aparato de grapado quirurgico 110 y el conjunto de yunque 120 desconectable se utilizan en un procedimiento de anastomosis para efectuar la union de secciones intestinales 50 y 52. El procedimiento de anastomosis es realizado tipicamente utilizando tecnicas quirurgicas mmimamente invasivas, incluidos medios e instrumentacion laparoscopicos. En el punto del procedimiento mostrado en la figura 11, una seccion intestinal enferma ha sido extirpada previamente, el conjunto de yunque 120 (incluyendo opcionalmente un contrafuerte quirurgico 124 en el mismo) ha sido aplicado al lugar de operacion ya sea a traves de una incision quirurgica o transanalmente y colocado dentro de la seccion intestinal 52, y la parte de cuerpo tubular 114 del aparato de grapado quirurgico 110 (incluyendo opcionalmente un contrafuerte quirurgico 124 en el mismo) ha sido insertada transanalmente en la seccion intestinal 50. Las secciones intestinales 50 y 52 tambien se muestran aseguradas temporalmente alrededor de sus respectivos componentes (p. ej., vastago 123 del conjunto de yunque 120 y el extremo distal de la parte de cuerpo tubular 114) por medios convencionales tales como una sutura en bolsa de tabaco “P”, como se ilustra en la figura 12.
Despues de eso, el clmico maniobra el conjunto de yunque 120 hasta que el extremo proximal del vastago 123 es insertado en el extremo distal de la parte de cuerpo tubular 114 del aparato de grapado quirurgico 110, en donde la estructura de montaje (no se muestra) dentro del extremo distal de la parte de cuerpo tubular 114 se acopla al vastago 123 para efectuar el montaje. El conjunto de yunque 120 y la parte de cuerpo tubular 114 son aproximados entonces para aproximar las secciones intestinales 50, 52. Luego se dispara el aparato de grapado quirurgico 110. Una cuchilla (no se muestra) corta la parte de tejido y el contrafuerte quirurgico 124 dispuestos radialmente hacia dentro de la cuchilla, para completar la anastomosis. La fuerza de la apertura del conjunto de yunque 120 y el conjunto de cartucho 122 de grapas, con contrafuerte quirurgico 124 grapado en secciones intestinales 50 y 52, provoca que las suturas 140 se liberen desde dentro de los surcos rebajados 150 liberando de ese modo el contrafuerte quirurgico 124 de la superficie de contacto con tejido 134.
En realizaciones adicionales, se utiliza sutura para conectar un contrafuerte quirurgico al conjunto de yunque 120. Se proporcionan surcos rebajados en la placa de yunque del conjunto de yunque 120 y se acopla sutura al contrafuerte quirurgico en los surcos.
Los expertos en la tecnica entenderan que los dispositivos y metodos descritos espedficamente en esta memoria e ilustrados en las figuras acompanantes son realizaciones ejemplares no limitativas y que la descripcion, divulgacion y figuras se deben interpretar solamente como ejemplares de reivindicaciones particulares. Debe entenderse, por lo tanto, que la presente descripcion no esta limitada a las realizaciones precisas descritas, y que un experto en la tecnica puede efectuar otros diversos cambios y modificaciones sin apartarse del alcance de la descripcion. Adicionalmente, se concibe que los elementos y las caractensticas ilustrados o descritos en conexion con una realizacion ejemplar se puedan combinar con los elementos y las caractensticas de otra realizacion ejemplar sin apartarse del alcance de la presente descripcion, y que dichas modificaciones y variaciones tambien esten pensadas para estar incluidas dentro del alcance de la presente descripcion. Por consiguiente, el tema de discusion de la presente descripcion no se debe limitar a lo que se ha mostrado y descrito particularmente, excepto lo indicado por las reivindicaciones adjuntas.
Claims (12)
- 51015202530354045REIVINDICACIONES1. Un cartucho (200), (122) de grapas para uso con un aparato de grapado quirurgico, el cartucho de grapas comprende:un cuerpo de cartucho que define una pluralidad de ranuras (52), (152) de retencion de grapas, el cuerpo de cartucho incluye una superficie de contacto con tejido (220), (134) que tiene al menos un surco rebajado (250), (155) definido en la misma;una grapa (50), (150) dispuesta dentro de cada ranura de retencion de grapa del cuerpo de cartucho;un contrafuerte quirurgico (500), (124) configurado y dimensionado para superponerse substancialmente al menos a una parte de las ranuras de retencion de grapas del cuerpo de cartucho; yal menos una sutura (240), (140) dispuesta dentro del al menos un surco rebajado del cuerpo de cartucho y configurada para retener el contrafuerte quirurgico encima de la superficie de contacto con tejido,caracterizada por que el al menos un surco rebajado (250), (155) del cartucho de grapas se extiende desde un primer canto exterior (248a) a un segundo canto exterior (248b) del cartucho de grapas pasando de ese modo transversalmente a traves de la superficie de contacto con tejido del cartucho de grapas.
- 2. El cartucho de grapas de la reivindicacion 1, en donde un surco rebajado proximal esta colocado a lo largo de una parte proximal del cartucho de grapas y un surco rebajado distal esta colocado a lo largo de una parte distal del cartucho de grapas.
- 3. El cartucho de grapas de cualquier reivindicacion precedente, en donde el cartucho de grapas tiene una ranura longitudinal central configurada para permitir un paso de una hoja de cuchilla a traves de la misma.
- 4. El cartucho de grapas de la reivindicacion 2 o la reivindicacion 3, en donde el surco rebajado proximal esta colocado distalmente de un extremo proximal de la ranura longitudinal central en el cartucho de grapas.
- 5. El cartucho de grapas de cualquiera de las reivindicaciones 2 a 4, en donde el surco rebajado distal esta colocado proximalmente de un extremo distal de la ranura longitudinal central en el cartucho de grapas.
- 6. Un efector final para uso con una grapadora quirurgica, el efector final comprende: un cartucho de grapas segun cualquiera de las reivindicaciones precedentes;una placa de yunque que tiene una superficie de contacto con tejido, la placa de yunque tiene al menos un surco rebajado definido en la misma en donde el al menos un surco rebajado (350) del yunque se extiende desde un primer canto exterior (358a) a un segundo canto exterior (358b) del yunque pasando de ese modo transversalmente a traves de la superficie de contacto con tejido del yunque;un contrafuerte quirurgico dispuesto de manera liberable en la superficie de contacto con tejido de la placa de yunque; yal menos una sutura dispuesta dentro del al menos un surco rebajado de la placa de yunque configurada para retener el contrafuerte quirurgico respectivo encima de las respectivas superficies de contacto con tejido.
- 7. El efector final de la reivindicacion 6, en donde un surco rebajado proximal esta colocado a lo largo de una parte proximal de cada uno del cartucho de grapas y la placa de yunque, y un surco rebajado distal esta definido a lo largo de una parte distal de cada uno del cartucho de grapas y la placa de yunque.
- 8. El efector final de la reivindicacion 6 o 7, en donde el cartucho de grapas y la placa de yunque tienen una ranura longitudinal central configurada para permitir un paso de una hoja de cuchilla a traves de la misma.
- 9. El efector final de cualquiera de las reivindicaciones 6, 7 u 8, en donde el surco rebajado proximal esta colocado distalmente de un extremo proximal de la ranura longitudinal central en cada uno del cartucho de grapas y la placa de yunque.
- 10. El efector final de cualquiera de las reivindicaciones 7 a 9, en donde el surco rebajado distal esta colocado proximalmente de un extremo distal de la ranura longitudinal central en cada uno del cartucho de grapas y la placa de yunque.
- 11. El efector final de cualquiera de las reivindicaciones 7 a 10, en donde el surco rebajado distal esta colocado distalmente de un extremo distal de la ranura longitudinal central en cada uno del cartucho de grapas y la placa de yunque.
- 12. Un aparato de grapado quirurgico que comprende: un alojamiento; yun efector final segun cualquiera de las reivindicaciones 6 a 11 que esta asegurado en el alojamiento.
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US9010612B2 (en) | 2012-01-26 | 2015-04-21 | Covidien Lp | Buttress support design for EEA anvil |
US9326773B2 (en) | 2012-01-26 | 2016-05-03 | Covidien Lp | Surgical device including buttress material |
US9931116B2 (en) | 2012-02-10 | 2018-04-03 | Covidien Lp | Buttress composition |
US8820606B2 (en) | 2012-02-24 | 2014-09-02 | Covidien Lp | Buttress retention system for linear endostaplers |
US9572576B2 (en) | 2012-07-18 | 2017-02-21 | Covidien Lp | Surgical apparatus including surgical buttress |
US20140048580A1 (en) | 2012-08-20 | 2014-02-20 | Covidien Lp | Buttress attachment features for surgical stapling apparatus |
US9161753B2 (en) | 2012-10-10 | 2015-10-20 | Covidien Lp | Buttress fixation for a circular stapler |
US20140131418A1 (en) | 2012-11-09 | 2014-05-15 | Covidien Lp | Surgical Stapling Apparatus Including Buttress Attachment |
US9192384B2 (en) | 2012-11-09 | 2015-11-24 | Covidien Lp | Recessed groove for better suture retention |
US9295466B2 (en) | 2012-11-30 | 2016-03-29 | Covidien Lp | Surgical apparatus including surgical buttress |
US9681936B2 (en) | 2012-11-30 | 2017-06-20 | Covidien Lp | Multi-layer porous film material |
US9402627B2 (en) | 2012-12-13 | 2016-08-02 | Covidien Lp | Folded buttress for use with a surgical apparatus |
US9204881B2 (en) | 2013-01-11 | 2015-12-08 | Covidien Lp | Buttress retainer for EEA anvil |
US9433420B2 (en) | 2013-01-23 | 2016-09-06 | Covidien Lp | Surgical apparatus including surgical buttress |
US9192383B2 (en) | 2013-02-04 | 2015-11-24 | Covidien Lp | Circular stapling device including buttress material |
US9414839B2 (en) | 2013-02-04 | 2016-08-16 | Covidien Lp | Buttress attachment for circular stapling device |
US9504470B2 (en) | 2013-02-25 | 2016-11-29 | Covidien Lp | Circular stapling device with buttress |
US20140239047A1 (en) | 2013-02-28 | 2014-08-28 | Covidien Lp | Adherence concepts for non-woven absorbable felt buttresses |
US9782173B2 (en) | 2013-03-07 | 2017-10-10 | Covidien Lp | Circular stapling device including buttress release mechanism |
US9655620B2 (en) | 2013-10-28 | 2017-05-23 | Covidien Lp | Circular surgical stapling device including buttress material |
-
2012
- 2012-11-09 US US13/673,148 patent/US9192384B2/en active Active
-
2013
- 2013-09-23 AU AU2013231146A patent/AU2013231146A1/en not_active Abandoned
- 2013-10-10 CA CA2829651A patent/CA2829651A1/en not_active Abandoned
- 2013-11-08 EP EP13192123.1A patent/EP2730236B1/en not_active Revoked
- 2013-11-08 ES ES13192123.1T patent/ES2560259T3/es active Active
Also Published As
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US9192384B2 (en) | 2015-11-24 |
EP2730236A1 (en) | 2014-05-14 |
EP2730236B1 (en) | 2015-12-23 |
US20140131419A1 (en) | 2014-05-15 |
CA2829651A1 (en) | 2014-05-09 |
AU2013231146A1 (en) | 2014-05-29 |
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