An instrument, particularly for use in laparoscopic surgery

Details An instrument, particularly for use in laparoscopic surgery An instrument, particularly for use in laparoscopic surgery

A - Human Necessities

61

B

A61B 17/28 (2006.01)

Patent

CA 2591210

A laparoscopic instrument (1) including a grip (2) provided with an actuator (3) which can effect, through a linkage (5) , the manipulation of an effector (9) placed at a first end portion of a tubular element (7) , the tubular element (7) being attached to the grip (2) of the instrument (1) , in which there is arranged a ratchet mechanism, in which a pawl (24) is arranged to cooperate with a substantially complementary ratchet bar (22) , teeth of the pawl (24) being arranged to be activated or deactivated for engaging teeth of the ratchet bar (22) , by means of a connection switch (26,) and the connection switch (26) being connected to the pawl (24) of the ratchet mechanism (20) via a flexible element (28) .

L'invention porte sur un instrument laparoscopique (1) comprenant un élément de préhension (2) pourvu d'un actionneur (3) permettant de manipuler, par un système mécanique de liaison (5), un organe effecteur (9) placé à une première extrémité d'un élément tubulaire (7). Cet élément tubulaire (7) est relié à l'élément de préhension (2) de l'instrument (1) dans lequel est agencé un mécanisme à cliquet dont le cliquet (24) permet de coopérer avec une barre complémentaire (22), les dents du cliquet (24) étant disposées pour être activées ou désactivées de façon à s'engrener dans les dents de la barre (22) du cliquet au moyen d'un dispositif de raccordement (26) qui est raccordé au cliquet (24) du mécanisme (20) par un élément flexible (28).

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