Articulating stone basket

Details Articulating stone basket Articulating stone basket

A - Human Necessities

61

B

A61B 17/50 (2006.01) A61B 17/22 (2006.01) A61B 17/28 (2006.01)

Patent

CA 2469333

A medical retrieval device includes a handle (12), two gear racks (26a, 26b) movably mounted to the handle (12) for longitudinal movement, and a pinion (52) rotatably mounted to the handle (12) so as to engage the two gear racks (26a, 26b). Rotation of the pinion (52) moves the gear racks (26a, 26b) in opposite directions. A basket (16) has at least three legs (70a-d), an adjacent two of the legs (70a-d) being connected to one of the gear racks (26a, 26b), and the remainder of the legs being connected to the other gear rack such that rotation of the pinion (52) displaces the two legs in a first direction and displaces the remainder of the legs in a second direction. Thus rotation of the pinion (52) articulates the basket (16).

L'invention concerne un dispositif de retrait médical comprenant un manche (12), deux supports d'engrenage (26a, 26b) montés mobiles sur le manche (12) afin d'assurer un mouvement longitudinal et un pignon (52) monté rotatif sur le manche (12) de manière à entrer en prise avec les deux supports d'engrenage (26a, 26b). La rotation du pignon (52) déplace les supports d'engrenage (26a, 26b) dans des directions opposées. Un panier (16) présente au moins trois jambes (70a-d), une jambe adjacente (70a-d) étant reliée à un des supports d'engrenage (26a, 26b) et l'autre jambe étant reliée à l'autre support d'engrenage de manière que la rotation du pignon (52) déplace les deux jambes dans une première direction et déplace le reste des jambes dans une seconde direction. Ainsi, la rotation du pignon (52) articule le panier (16).

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