Surgical grasper with inserts and method of using same

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/28 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2347286

A handle assembly (27, 27a) is operable by user through a linkage to open and close first and second jaws (34, 36), moveable with respect to axis. A ratched assembly (30, 105) is included in the linkage and comprises a series of ratchet teeth (76, 123), and a ratchet pawl (78, 130) which cooperate to maintain the jaws in a progressively closed position. A lock (132, 134, 136) coupled to either the ratchet teeth, or the pawl maintains these elements in a spaced relationship to inhibit operation of the ratchet assembly until the lock is manually released. An insert (41, 41a) carried by a jaw support includes a distal high-profile pad (47, 47a), and a proximal low-profile pad (45, 45a), which may be covered by a woven mesh to enhance traction. An associated method includes the step of manually locking one of the ratchet elements in a spaced relationship with the other of the ratchet elements.

L'invention concerne un ensemble poignée (27, 27a), mis en oeuvre par un utilisateur par l'intermédiaire d'un élément de liaison, qui permet d'ouvrir et de fermer une première et une seconde mâchoires (34, 36) mobiles par rapport à un axe. L'élément de liaison comprend un ensemble à cliquet (30, 105), comprenant une série de dents à cliquet (76, 123) et un cliquet (78, 130) qui coopère de manière à maintenir les mâchoires dans une position progressivement fermée. Un verrou (132, 134, 136) couplé soit aux dents à cliquet, soit au cliquet maintient ces éléments éloignés, afin d'inhiber le fonctionnement de l'ensemble à cliquet jusqu'à ce que le verrou soit manuellement libéré. Une pièce rapportée (41, 41a) portée par un support de mâchoire comprend une garniture distale (47, 47a) à profil élevé, et une garniture proximale (45, 45a) à profil bas, pouvant être recouvertes par une maille tissée destinée à améliorer traction. L'invention concerne également un procédé associé consistant à verrouiller manuellement l'un des éléments à cliquet, les autres éléments à cliquet étant espacés des premiers.

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