26-12-2013 дата публикации
Номер: US20130340238A1
A surgical instrument for the dissection of bone and other tissue includes a spindle, a dissection tool and an coupler disposed between the spindle and the dissection tool. The coupler includes a tool collet and an attachment locking mechanism operable to permit tool collet operation and telescoping movement of an attachment tube with respect to the dissection tool. A method is also provided for convenient coupling of the dissection tool and adjustment of the attachment tube length. 1. A method of assembling a surgical instrument , comprising:providing a motor assembly with a first tool chuck;providing a coupling assembly with a work shaft and a second tool chuck;providing an attachment tube;providing a dissection tool having a distal working portion and a proximal coupling portion;securing the coupling assembly to the motor assembly by engaging the work shaft with the first tool chuck;inserting the attachment tube into an axial bore of the coupling assembly to movably couple the attachment tube to the coupling assembly;inserting the proximal portion of the dissection tool through the attachment tube and into the second tool chuck; andlocking the proximal portion of the dissection tool in the second tool chuck.2. The method of claim 1 , further comprising:translating the attachment tube along the dissection tool after locking the proximal portion of the dissection tool in the second tool chuck to adjust the amount of the working portion of the dissection tool extending distally from the attachment tube; andfixedly securing the attachment tube relative to the coupling assembly and dissection tool.3. The method of claim 2 , wherein fixedly securing the attachment tube relative to the coupling assembly and the dissection tool comprises engaging the attachment tube with an attachment locking assembly of the coupling assembly.4. The method of claim 3 , wherein fixedly securing the attachment tube relative to the coupling assembly and the dissection tool comprises ...
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