ES2200975T3 - Instrumento de agarre bipolar. - Google Patents
Instrumento de agarre bipolar.Info
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- ES2200975T3 ES2200975T3 ES00978976T ES00978976T ES2200975T3 ES 2200975 T3 ES2200975 T3 ES 2200975T3 ES 00978976 T ES00978976 T ES 00978976T ES 00978976 T ES00978976 T ES 00978976T ES 2200975 T3 ES2200975 T3 ES 2200975T3
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B18/1445—Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
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Abstract
Instrumento de agarre bipolar con dos mordazas prensoras (15, 16) móviles la una contra la otra, eléctricamente aisladas entre sí, cada una conectable con un polo de una fuente de tensión de alta frecuencia, que dispone cada una de dos elementos de apriete (37) con una superficie de apriete (38), distanciados el uno frente al otro, que forman entre sí una ranura longitudinal (36), y con un dispositivo de corte que comprende un elemento cortante, desplazable en las ranuras longitudinales de las mordazas prensoras (15, 16), con un filo cortante (42), donde el elemento cortante (41) está dispuesto en la ranura longitudinal (36) de una mordaza prensora (15), caracterizado porque el filo cortante (42) está alojado en la ranura longitudinal (36) entre los elementos de apriete (37) de esta mordaza prensora (15) y no sobresale por encima de sus superficies de apriete (38) en sentido hacia la otra mordaza prensora (16), y porque los elementos de apriete (37) de esta mordaza prensora (15) son elásticamente desplazables en contra del movimiento de cierre de las mordazas prensoras (15, 16) en tal medida, en relación con el elemento cortante (41), que el filo cortante (42) del elemento cortante (41) sobresale por encima de las superficies de apriete (38).
Description
Instrumento de agarre bipolar.
La invención se refiere a un instrumento de
agarre bipolar con dos mordazas prensoras móviles la una contra la
otra, eléctricamente aisladas entre sí, que pueden conectarse cada
una con un polo de una fuente eléctrica de tensión de alta
frecuencia, que comprenden cada una dos elementos de apriete,
distanciados el uno frente al otro formando entre sí una ranura
longitudinal, con una superficie de apriete, y con un dispositivo de
corte que comprende un elemento cortante con un filo cortante,
desplazable en las ranuras longitudinales de las mordazas prensoras,
donde el elemento cortante está dispuesto en la ranura longitudinal
de una mordaza prensora.
Con instrumentos de agarre bipolares es posible
coagular tejidos en la zona sujeta, de modo que en esta zona se
pueden contener hemorragias.
Es conocido coagular con instrumentos de este
tipo por ejemplo determinadas zonas de vasos sanguíneos y separar a
continuación los vasos en esta zona coagulada mediante un corte, el
peligro de producirse hemorragias se ha minimizado por la
coagulación precedente. Para ello se requieren dos pasos de
procedimiento completamente distintos que normalmente se llevan a
cabo también con instrumentos diferentes, es decir, por un lado la
coagulación con un instrumento de agarre bipolar, y por otro lado la
separación del tejido coagulado mediante un dispositivo de
corte.
También se conocen instrumentos de agarre
bipolares en los cuales está integrado un dispositivo de corte
(folleto de la empresa CIRCON, TRIPOLAR Cutting Forceps, patente
estadounidense 5 458 598). En este instrumento, las mordazas
prensoras del instrumento de agarre están divididas a través de
ranuras longitudinales en dos superficies de apriete dispuestas una
al lado de otra, y en las ranuras longitudinales se puede introducir
en sentido longitudinal del instrumento un elemento de corte
provisto de un filo cortante que, después de la coagulación, separa
las partes de tejido sujetas entre las superficies de apriete. En
este instrumento conocido deben estar previstos mecanismos de
accionamiento distintos para cerrar las mordazas prensoras para
coagular, y para desplazar hacia delante el elemento cortante del
dispositivo de corte; este instrumento, configurado preferentemente
como instrumento de vástago tubular, tiene un diseño relativamente
complicado y, además, el usuario de este instrumento debe manipular
dos mecanismos de accionamiento separados para coger el tejido y
para cortarlo a continuación.
En el documento WO 96/05776 se describe un
instrumento de agarre bipolar en el cual un filo cortante está
dispuesto en una ranura longitudinal entre dos elementos de apriete
de una mordaza prensora, después de la coagulación es posible
desplazar este filo cortante de tal manera que se corte el material
sujeto entre las mordazas prensoras. En este documento no se
describe con más detalle cómo se debe mover el elemento cortante
para separar el tejido, pero es de suponer que para ello se necesita
un desplazamiento manual intencionado del elemento cortante, o un
desplazamiento mediante un mecanismo de accionamiento por
separado.
El objetivo de la invención consiste en
configurar un instrumento de agarre bipolar del tipo genérico de tal
modo que se simplifique el manejo, especialmente de forma que el
usuario sólo necesite un mecanismo de accionamiento para sujetar el
tejido y para cortarlo a continuación.
Este objetivo se logra de acuerdo con la
invención en un instrumento de agarre bipolar del tipo inicialmente
descrito de tal manera que la cuchilla está alojada en la ranura
longitudinal entre los elementos de apriete de esta mordaza prensora
y no sobresale por encima de las superficies de apriete de esta
mordaza prensora en sentido hacia la otra mordaza prensora, y porque
los elementos de apriete de esta mordaza prensora pueden moverse
elásticamente en relación con el elemento cortante en contra del
movimiento de cierre de las mordazas prensoras hasta que el filo del
elemento cortante sobresalga por encima de las superficies de
apriete.
Al iniciar el movimiento de cierre de las
mordazas prensoras, el elemento cortante está alojado de tal manera
en la ranura longitudinal de una mordaza prensora que el filo del
elemento cortante se encuentra en el interior de la ranura
longitudinal, por lo que no entra en función. En este caso, el
instrumento funciona como un instrumento de agarre bipolar
convencional, en el cual las superficies de apriete entran en
contacto con el tejido a coger sin que se note la presencia del
elemento cortante. En esta fase del movimiento de cierre es posible
coagular el tejido de forma convencional aplicando una tensión de
alta frecuencia, una vez finalizada la coagulación también es
posible retirar el instrumento de agarre bipolar, igual que un
instrumento de agarre bipolar convencional.
Si en este instrumento de agarre bipolar el
movimiento de cierre continúa después de la coagulación, las
mordazas prensoras se mueven con tanta fuerza la una contra la otra
que los elementos de apriete de la mordaza prensora, que lleva el
dispositivo de corte, se desplazan elásticamente en contra del
sentido de movimiento de cierre de las mordazas prensoras, por
consiguiente se libera el filo cortante del dispositivo de corte
que, debido al desplazamiento elástico de los elementos de apriete,
sobresale por encima de la superficie de apriete. Por lo tanto, el
instrumento es ahora un instrumento de corte en el cual el elemento
cortante puede penetrar hasta dentro de la ranura longitudinal en la
otra mordaza prensora cortando el tejido entre las mordazas
prensoras. Este movimiento de corte sigue inmediatamente a
continuación del movimiento de cierre normal de las mordazas
prensoras, el usuario sólo debe manejar un mecanismo de
accionamiento, con una ligera presión sólo se sujeta y aprieta el
tejido a coagular mientras que, con un cierre fuerte de las mordazas
prensoras, se cortan adicionalmente las partes de tejido sujetas
entre las mordazas prensoras.
En una primera forma de realización preferida
está previsto que tanto el elemento cortante como los elementos de
apriete están configurados como una sola pieza con la mordaza
prensora, y que el elemento cortante es una parte rígida de la
mordaza prensora mientras que los elementos de apriete están unidos
con las partes restantes de la mordaza prensora a través de zonas
elásticamente deformables. En especial, las zonas elásticamente
deformables pueden estar constituidas por nervios elásticamente
deformables con una altura reducida.
En otra forma de realización está previsto que la
mordaza prensora está formada de dos partes, con una primera parte
rígida que comprende el elemento cortante y el apoyo de la mordaza
prensora en el instrumento de agarre, y con una segunda parte, que
comprende los elementos de apriete, apoyada de forma elásticamente
móvil en la primera parte.
Por ejemplo, los elementos de apriete pueden
estar apoyados de modo elásticamente orientable en la primera
parte.
Resulta favorable si la segunda parte está
configurada en forma de U con dos alas paralelas, que constituyen
los elementos de apriete, y con un nervio que une estas alas
cerrando la ranura longitudinal hacia el extremo distal de la
mordaza prensora, y si los extremos libres de la segunda parte están
apoyados de forma giratoria en el primer elemento. Así se obtiene
una configuración muy estable de la segunda parte de la mordaza
prensora que soporta las superficies de apriete.
La ranura longitudinal en la otra mordaza
prensora, que no dispone de un dispositivo de corte, está
preferentemente cerrada en ambos extremos, por lo que el dispositivo
de corte penetra durante el proceso de corte en esta ranura
longitudinal cerrada en todos los lados, lo que ayuda también a que
la otra mordaza prensora forme un conjunto muy rígido.
La siguiente descripción de formas de realización
preferidas de la invención sirve junto con el dibujo para una
explicación más detallada. En las figuras se muestra:
Fig. 1 Vista lateral de un instrumento de agarre
bipolar, configurado como instrumento de vástago tubular, con dos
mordazas prensoras pivotantes.
Fig. 2 Representación en despiece ordenado en
perspectiva de las dos mordazas prensoras y de los elementos de
accionamiento de las mordazas prensoras.
Fig. 3 Vista lateral de la zona de mordazas
prensoras del instrumento según la figura 1, con las mordazas
prensoras en una posición de agarre.
Fig. 4 Vista similar a la figura 3, con las
mordazas prensoras en una posición de corte.
Fig. 5 Vista en perspectiva de la mordaza
prensora provista de un dispositivo de corte, similar a la vista
según la figura 2, de un ejemplo de realización modificado de esta
mordaza prensora.
El instrumento quirúrgico representado en el
dibujo está configurado como instrumento 1 de vástago tubular, con
un vástago 2 alargado tubular con un extremo distal 3 y un extremo
proximal 4.
En el extremo proximal 4, el vástago 2 está unido
con un conjunto 5 de mangos que comprende un mango 6 fijo y, unido
con el mismo de forma pivotante, un mango 7 articuladamente unido
con una barra 8 de tracción y empuje que penetra por el vástago 2 y
que, mediante basculación del mango 7, puede desplazarse en relación
con el vástago 2 en sentido longitudinal hacia delante y hacia
atrás.
En el vástago 2 está insertado en su extremo
distal 3 un soporte 9 que lleva en su extremo distal dos brazos de
alojamiento 10, que discurren en paralelo y sobresalen en sentido
distal, y que encierran entre sí un espacio intermedio de
alojamiento 11. En este espacio está insertado un cuerpo 12 de
aislamiento de un material eléctricamente aislante, como por ejemplo
cerámica, configurado en lo esencial en forma de U que cubre el lado
interior de los brazos de alojamiento 10.
La barra 8 de tracción y empuje penetra tanto por
el soporte 9 como por el cuerpo de aislamiento 12 y termina en la
zona del espacio intermedio de alojamiento 11.
En la zona de sus extremos libres, los brazos de
alojamiento 10 disponen de orificios de alojamiento 13 alineados
entre sí para un eje 14 de soporte que discurre transversalmente al
sentido longitudinal del eje longitudinal del vástago del
instrumento y penetra por el espacio intermedio de alojamiento 11 en
su extremo distal abierto.
En este eje 14 de soporte están apoyadas de forma
orientable una al lado de otra e independientemente entre sí dos
mordazas prensoras 15, 16 cuyos extremos proximales 17, 18 penetran
en el espacio intermedio de alojamiento 11. Cada extremo proximal
17, 18 está articuladamente unido con un brazo 19 ó 20,
respectivamente, cuyos otros extremos están también unidos
articuladamente con el extremo distal de la barra 8 de empuje y
tracción, por lo que estos brazos 19, 20 forman junto con los
extremos proximales 17 y 18 una articulación cuádruple a través de
la cual es posible bascular las mordazas prensoras 15 y 16 alrededor
del eje de giro, constituido por el eje 14 de soporte, mediante
desplazamiento hacia delante y hacia atrás de la barra 8 de empuje y
tracción: durante el avance de la barra 8 de empuje y tracción se
distancian las mordazas prensoras, es decir, las mordazas prensoras
se abren, mientras que durante el retroceso de la barra 8 de empuje
y tracción se cierran las mordazas prensoras 15, 16.
Las mordazas prensoras 15 y 16 están configuradas
de forma distinta. Una de las dos mordazas prensoras, denominada a
continuación mordaza prensora 16 inferior, está formada por tres
partes y comprende una sección proximal 21, que se extiende hasta
inmediatamente delante del eje 14 de soporte, una sección 22 central
que se encuentra en lo esencial en el área del eje 14 de soporte, y
una sección 23 distal cuyo lado superior 24, en lo esencial plano y
dirigido hacia la otra mordaza prensora 15, constituye una
superficie de apriete provista de nervios transversales 25 para
aumentar el agarre.
La sección central 22 se compone de un material
eléctricamente aislante, por ejemplo de cerámica, y une la sección
proximal 21 con la sección distal 23 aislando estas dos secciones
compuestas de metal y por lo tanto eléctricamente conductivas. La
sección central 22 está en contacto plano tanto con la sección
distal 23 como con la sección proximal 21, de modo que en la zona de
solapamiento se obtiene una estructura estratificada, asimismo, la
sección central 22 se apoya con su borde posterior 26 y con una
superficie de contacto 27 delantera en la sección proximal 21 y en
la sección distal 23, respectivamente, por lo que la sección
proximal 21 está unida de forma rígida y eléctricamente aislada con
la sección distal 23.
La sección central 22 lleva lateralmente un
casquillo 28, configurado como una sola pieza con esta sección, que
penetra por orificios de soporte 29 y 30 en las dos mordazas
prensoras 15 y 16 y aloja en su interior el eje de soporte 14 que
así está eléctricamente aislado frente a la mordaza prensora 15 y el
extremo proximal 18 de la mordaza prensora 16. El eje de soporte 14
es de metal y está unido de forma eléctricamente conductiva con los
brazos de alojamiento 10 del soporte 9, conectado a su vez
eléctricamente con el vástago 2. Este lleva una conexión eléctrica
31 a través de la que se puede establecer una unión eléctrica con
una fuente de tensión de alta frecuencia no representada en el
dibujo.
El eje 14 de soporte está en contacto inmediato
con la sección distal 23 de la mordaza prensora 16, por lo que en
esta zona se establece una unión eléctricamente conductiva entre la
sección distal 23 y el eje 14 de soporte. Así es posible unir la
sección distal 23 de la mordaza prensora 16 con un polo de la fuente
de tensión de alta frecuencia.
De manera no representada en el dibujo, el otro
polo se une con la barra 8 de empuje y tracción y a través de los
brazos 19 y 20 se conectan tanto la sección proximal 21 de la
mordaza prensora 16 como la mordaza prensora 15 completa al segundo
polo de la fuente de tensión de alta frecuencia.
La sección central 22, fijada adicionalmente
frente a la sección proximal 21 mediante una clavija 33 introducida
en un taladro 32 en la sección proximal 21, separa la sección distal
23 de la mordaza prensora 16 eléctricamente de la sección proximal
21 de la mordaza prensora 16, de modo que las dos mordazas prensoras
15 y 16 están eléctricamente aisladas entre sí y conectadas cada una
con un polo de la fuente de alimentación.
La otra mordaza prensora, denominada a
continuación mordaza prensora 15 superior, se compone completamente
de metal y está formada como una sola pieza en el ejemplo de
realización según las figuras 1 a 4. Una sección proximal 34 está
configurada de manera similar a la sección proximal 21 de la mordaza
prensora 16 inferior y pasa a una sección distal 35 que dispone de
dos elementos de apriete 37 idénticos que forman entre sí una ranura
longitudinal 36 y discurren en paralelo. Ambos elementos de apriete
37 tienen en su lado dirigido hacia la mordaza prensora 16 inferior
una superficie de apriete 38, enfrentada a la superficie de apriete
24 de la mordaza prensora 16 inferior, prevista igualmente de
nervios transversales 39.
Ambos elementos de apriete 37 están unidos con la
sección proximal 34 a través de nervios 40 en forma de cinta con una
altura de construcción reducida, estos nervios están configurados
tan planos que en esta zona se facilita una basculación elástica de
los elementos de apriete 37 en forma de brazos alrededor de un eje
de basculación que discurre en paralelo al eje 14 de soporte.
En la ranura longitudinal 36, que queda libre
entre los dos elementos de apriete 37, penetra un cuerpo cortante
41, unido rígidamente con la sección proximal 34, cuyo borde
inferior está configurado como filo cortante 42. Si los elementos de
apriete 37 no están deformados, es decir, cuando no están
desplazados elásticamente frente a la sección proximal 34, el filo
cortante 42 se encuentra completamente en el interior de la ranura
longitudinal 36 y no sobresale hacia abajo por encima de las
superficies de apriete 38 de los dos elementos de apriete 37 (véase
la representación en las figuras 2 y 3).
Cuando los elementos de apriete 37 se desplazan
elásticamente hacia arriba, es decir, en sentido de apertura de las
mordazas de apriete, el filo cortante 42 sobresale hacia abajo entre
las superficies de apriete 38 y puede entrar en función.
En la mordaza de apriete 16 inferior está
configurada también una ranura longitudinal 43, alineada con la
ranura longitudinal 36 en la mordaza de apriete 15 superior y
cerrada en ambos extremos, la longitud de la ranura longitudinal 43
está dimensionada de tal forma que el filo cortante 42 del cuerpo
cortante 41 puede penetrar en la ranura longitudinal 43.
El instrumento configurado de esta manera sirve
al mismo tiempo como instrumento de agarre bipolar y como
instrumento de corte.
Con la barra 8 de empuje y tracción en su
posición avanzada, las mordazas prensoras 15 y 16 están distanciadas
entre sí y las tijeras de agarre se encuentran en su posición
abierta. En esta posición es posible colocar las superficies de
apriete 24 y 38 de las mordazas prensoras en el tejido a tratar, por
ejemplo un vaso sanguíneo 44, y coger el mismo (figura 3). Mediante
aplicación de una tensión de alta frecuencia en las dos mordazas
prensoras 15 y 16, y debido al contacto del vaso sanguíneo con las
dos mordazas prensoras 15 y 16, es posible coagular el vaso
sanguíneo 44 en la zona de contacto de modo de por sí conocido de
tijeras de agarre bipolares.
La coagulación tiene lugar en una posición de las
mordazas prensoras 15, 16 en la que, frente a la posición abierta,
están desplazadas a una posición intermedia, pero aún no están
completamente cerradas. En esta posición intermedia, la presión de
contacto de la mordaza prensora 15 superior en el vaso sanguíneo 44
será aún tan baja que los elementos de apriete 37 no basculan
elásticamente ni se deforman en la zona de los nervios 40, por lo
que el cuerpo cortante 41 con el filo cortante 42 se mantiene en la
ranura longitudinal 36, es decir, el filo cortante 42 queda sin
efecto
(figura 3).
(figura 3).
Durante el avance del movimiento de cierre de las
mordazas prensoras 15 y 16, retirando la barra 8 de empuje y
tracción, las mordazas prensoras 15 y 16 presionan fuertemente la
una contra la otra, de modo que los elementos de apriete 37 se
doblan en la zona de los nervios 40 delgados, elásticamente
deformables, es decir, los elementos de apriete 37 basculan hacia
arriba en sentido contrario a la posición de cierre y el filo
cortante 42 del cuerpo cortante 41 puede sobresalir hacia abajo
sobre las superficies de apriete 38, entrar en contacto con el vaso
sanguíneo 44 y cortar el mismo durante el avance del cierre de las
mordazas prensoras 15 y 16, el cuerpo cortante 41 penetra con el
filo cortante 42 en la ranura longitudinal 43.
Con el mismo movimiento de cierre del mango 7
orientable, el cirujano puede coger primero el tejido a tratar y
cortar, coagular el mismo mediante aplicación de una tensión de alta
frecuencia y finalmente, girando aún más el brazo 7, separar el
tejido en la zona coagulada, para ello sólo se requiere un mecanismo
de accionamiento y el cirujano puede realizar este procedimiento con
una única palanca basculando la misma según las necesidades para que
el instrumento adopte consecutivamente las posiciones de trabajo
descritas.
El ejemplo de realización según la figura 5 es
similar al de las figuras 1 a 4, las piezas que se corresponden
llevan los mismos símbolos de referencia.
Existe sólo una diferencia en la zona de la
mordaza prensora 15 superior, formada de dos partes en el ejemplo de
realización según la figura 5. En este ejemplo de realización, los
dos elementos de apriete 37 no están unidos con la sección proximal
34 de la mordaza prensora 15 a través de nervios elásticos 40, sino
que están apoyados de forma orientable, a través de una clavija 45
de soporte, en el cuerpo cortante 41, es decir, en la zona de
transición del cuerpo cortante 41 a la sección proximal 34. En este
ejemplo de realización, los extremos distales de los elementos de
apriete 37 están unidos entre sí a través de un nervio transversal
46 y los dos elementos de apriete 37 forman junto con el nervio
transversal 46 un componente uniforme.
Un elemento elástico 47, representado en el
dibujo sólo esquemáticamente, unido por un lado con el cuerpo
cortante 41 y por otro lado con el nervio transversal 46, mantiene
los elementos de apriete 37 en una posición en la que las
superficies de apriete 38 sobresalen hacia abajo del filo cortante
42 en el cuerpo cortante 41, es decir, el filo cortante 42 está
completamente alojado en la ranura longitudinal 36 y no entra en
función. Es posible bascular elásticamente los elementos de apriete
37 en contra del efecto de este elemento elástico 47, de modo que el
filo cortante 42 sale de la ranura longitudinal 36 y entra en
función como se ha descrito anteriormente.
En este ejemplo de realización, los elementos de
apriete 37 están unidos de forma eléctricamente conductiva con la
sección proximal 34 a través de la clavija de soporte 45, por lo que
también en este caso las superficies de apriete 38 están en contacto
con un polo de la fuente de tensión de alta frecuencia.
Claims (7)
1. Instrumento de agarre bipolar con dos mordazas
prensoras (15, 16) móviles la una contra la otra, eléctricamente
aisladas entre sí, cada una conectable con un polo de una fuente de
tensión de alta frecuencia, que dispone cada una de dos elementos de
apriete (37) con una superficie de apriete (38), distanciados el uno
frente al otro, que forman entre sí una ranura longitudinal (36), y
con un dispositivo de corte que comprende un elemento cortante,
desplazable en las ranuras longitudinales de las mordazas prensoras
(15, 16), con un filo cortante (42), donde el elemento cortante (41)
está dispuesto en la ranura longitudinal (36) de una mordaza
prensora (15), caracterizado porque el filo cortante (42)
está alojado en la ranura longitudinal (36) entre los elementos de
apriete (37) de esta mordaza prensora (15) y no sobresale por encima
de sus superficies de apriete (38) en sentido hacia la otra mordaza
prensora (16), y porque los elementos de apriete (37) de esta
mordaza prensora (15) son elásticamente desplazables en contra del
movimiento de cierre de las mordazas prensoras (15, 16) en tal
medida, en relación con el elemento cortante (41), que el filo
cortante (42) del elemento cortante (41) sobresale por encima de las
superficies de apriete (38).
2. Instrumento de acuerdo con la reivindicación 1
caracterizado porque tanto el elemento cortante (41) como los
elementos de apriete (37) están formados de una sola pieza con la
mordaza prensora (15), y porque el elemento cortante (41) es una
parte rígida de la mordaza prensora (15), mientras que los elementos
de apriete (37) están unidos con las demás partes (34) de la mordaza
prensora (15) a través de zonas (40) elásticamente deformables.
3. Instrumento de acuerdo con la reivindicación 2
caracterizado porque las zonas elásticamente deformables (40)
están constituidas por nervios de altura reducida que se pueden
doblar elásticamente.
4. Instrumento de acuerdo con la reivindicación 1
caracterizado porque la mordaza prensora (15) está formada de
dos partes, con una primera parte rígida que comprende el elemento
cortante (41) y el soporte de la mordaza prensora (15) en el
instrumento de agarre, y con una segunda parte que comprende los
elementos de apriete (37) y que está apoyada de forma elásticamente
móvil en la primera parte.
5. Instrumento de acuerdo con la reivindicación 4
caracterizado porque los elementos de apriete (37) están
apoyados de forma elásticamente orientable en la primera parte.
6. Instrumento de acuerdo con la reivindicación 5
caracterizado porque la segunda parte está configurada en
forma de U, con dos alas paralelas, que constituyen los elementos de
apriete (37), y con un nervio (46) que une las mismas y cierra la
ranura longitudinal (36) hacia el extremo distal de la mordaza
prensora (15), y porque la segunda parte está apoyada de forma
giratoria en la primera parte con los extremos libres de las
alas.
7. Instrumento de acuerdo con una de las
reivindicaciones anteriores caracterizado porque la ranura
longitudinal (43) en la otra mordaza prensora (16), que no comprende
un dispositivo de corte, está cerrada en ambos extremos.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10003020 | 2000-01-25 | ||
| DE10003020A DE10003020C2 (de) | 2000-01-25 | 2000-01-25 | Bipolares Faßinstrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2200975T3 true ES2200975T3 (es) | 2004-03-16 |
Family
ID=7628616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES00978976T Expired - Lifetime ES2200975T3 (es) | 2000-01-25 | 2000-11-09 | Instrumento de agarre bipolar. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6743230B2 (es) |
| EP (1) | EP1250102B1 (es) |
| JP (1) | JP3691793B2 (es) |
| AT (1) | ATE243004T1 (es) |
| DE (1) | DE10003020C2 (es) |
| ES (1) | ES2200975T3 (es) |
| WO (1) | WO2001054604A1 (es) |
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| US6113598A (en) * | 1998-02-17 | 2000-09-05 | Baker; James A. | Radiofrequency medical instrument and methods for vessel welding |
| DE20001204U1 (de) * | 2000-01-25 | 2000-03-09 | Aesculap AG & Co. KG, 78532 Tuttlingen | Bipolares Faßinstrument |
| JP2001269354A (ja) * | 2000-03-24 | 2001-10-02 | Olympus Optical Co Ltd | 高周波処置具 |
-
2000
- 2000-01-25 DE DE10003020A patent/DE10003020C2/de not_active Expired - Fee Related
- 2000-11-09 JP JP2001555584A patent/JP3691793B2/ja not_active Expired - Fee Related
- 2000-11-09 WO PCT/EP2000/011052 patent/WO2001054604A1/de not_active Ceased
- 2000-11-09 ES ES00978976T patent/ES2200975T3/es not_active Expired - Lifetime
- 2000-11-09 EP EP00978976A patent/EP1250102B1/de not_active Expired - Lifetime
- 2000-11-09 AT AT00978976T patent/ATE243004T1/de not_active IP Right Cessation
-
2002
- 2002-07-18 US US10/199,739 patent/US6743230B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US20020183784A1 (en) | 2002-12-05 |
| ATE243004T1 (de) | 2003-07-15 |
| DE10003020A1 (de) | 2001-08-23 |
| EP1250102B1 (de) | 2003-06-18 |
| DE10003020C2 (de) | 2001-12-06 |
| US6743230B2 (en) | 2004-06-01 |
| JP3691793B2 (ja) | 2005-09-07 |
| WO2001054604A1 (de) | 2001-08-02 |
| JP2003521304A (ja) | 2003-07-15 |
| EP1250102A1 (de) | 2002-10-23 |
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