Disposable laparoscopic morcellator

Details Disposable laparoscopic morcellator Disposable laparoscopic morcellator

A - Human Necessities

61

B

A61B 17/32 (2006.01) A61B 17/295 (2006.01) A61B 17/34 (2006.01)

Patent

CA 2299697

A morcellator (10) for removing large masses of tissues during laparoscopic procedures includes a rotationally fixed, axially movable inner tube (14) disposed within a rotating cutting member (12). The cutting member (12) is often disposed in the annular space between the inner tube (14), and an outer tube (16). A laparoscopic grasping instrument (42) is inserted through the lumen, and draws the tissue proximally through the morcellator (10). As the cutting member (12) severs tissue, the tissue is drawn into the fixed lumen of the inner tube (14). This prevents the cutting members (12) from twisting the severed tissue, thereby preventing any degradation of the surgeon's control. A novel valve (28) is provided to prevent loss of insufflation gas when no instrument traverses the lumen. The inner tube (14) can be translated distally to protect tissue, and/or other surgical implements against inadvertent contact with the cutting edge of the cutting member (12).

Un appareil de morcellement (10) destiné à retirer des masses importantes de tissus pendant des interventions laparoscopiques comprend un tube intérieur (14) non rotatif et fixe axialement disposé à l'intérieur d'un élément coupant rotatif (12). L'élément coupant (12) est souvent disposé dans l'espace annulaire entre le tube intérieur (14) et un tube extérieur (16). Un instrument de préhention laparoscopique (42) est inséré à travers la lumière et il tire les tissus de manière proximale à travers l'appareil de morcellement (10). A mesure que l'élément coupant (12) coupe le tissu, le tissu est tiré à l'intérieur de la lumière fixe du tube intérieur (14). Ceci empêche les éléments coupants (12) de vriller le tissu coupé, empêchant ainsi toute dégradation des commandes dont dispose le chirurgien. Une nouvelle soupape (28) est disposée pour empêcher la perte de gaz d'insufflation lorsqu'aucun instrument ne traverse la lumière. Le tube intérieur (14) peut être déplacé distalement afin de protéger les tissus, et/ou pour empêcher que d'autres instruments chirurgicaux ne viennent en contact accidentel avec le tranchant de l'élément coupant (12).

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