Aiming device

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/17 (2006.01)

Patent

CA 2625634

The invention relates to an aiming device (15) for the placement of Kirschner- wires in orthopaedics/traumatology. The aiming device (15) comprises an adjustable aiming block (10) which is displaceably attached to a forceps (20). The fixation of the aiming device at the bone (30) can be varied by clamping the forceps (20) more or less strongly. The aiming block (10) can be displaced to the periost (31) and be fixed. The aiming device (15) according to the invention allows the alignment of the guidance (2) of the Kirschner-wire (1) about an axis of rotation (12). Before the Kirschner-wire (1) is inserted in the bone (30) its position and direction can be intraoperatively represented and aligned in at least two non-parallel planes of projection (P1, P2) by means of fluoroscopy and/or navigation. Repeated drilling and mistaken positioning of the Kirschner-wire (1) can so be avoided. Thus, allowing to reduce the time of operation and the exposure of the patient to radiation.

L~invention concerne un dispositif de visée (15) pour la mise en place d~une broche de Kirschner dans le cadre d~une intervention d~orthopédie/ de traumatologie. Le dispositif de visée (15) comprend un bloc de visée réglable (10) fixé de manière mobile à un davier (20). L~attache du dispositif de visée à l~os (30) peut être modifiée en serrant plus ou moins fortement le davier (20).Le bloc de visée (10) peut être amené sur le périoste (31) et fixé. Le dispositif de visée (15) objet de l~invention permet l~alignement du guidage (2) de la broche de Kirschner (1) autour d~un axe de rotation (12). Avant l~insertion de la broche de Kirschner (1) dans l~os (30), sa position et sa direction peuvent être reproduites en préopératoire et alignées dans au moins deux plans de projection non parallèles (P1, P2) par fluoroscopie et/ou navigation. On peut ainsi éviter les perçages répétés et les mauvais positionnements de la broche de Kirschner (1), ce qui permet de réduire la durée de l~opération et d~exposition du patient aux rayons.

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