Surgical micro-burring instrument and method of performing...

A - Human Necessities – 61 – B

Patent

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A61B 17/00 (2006.01)

Patent

CA 2537547

A surgical micro-burring instrument including an outer tubular member coaxially maintaining an inner tubular member. The outer tubular member defines a proximal section, a distal section, and a central lumen extending from the proximal section to the distal section. The distal section forms a pocket and an elevator tip. The pocket has a bottom wall and an opposed upper opening. The elevator tip extends distal the pocket. The inner tubular member forms a bur received within the pocket. Upon final assembly, at least a portion of the bur is exposed relative to the outer tubular member via the upper opening of the pocket. The elevator tip is configured to facilitate lifting of soft tissue, such as mucosa, while positioning the bur, via the pocket, in an appropriate location for cutting contacted harder tissue, such as turbinate bone or septal bone/cartilage.

La présente invention concerne un instrument chirurgical de micro-fraisage comprenant un élément tubulaire externe qui maintient de manière coaxiale un élément tubulaire interne. Ledit élément tubulaire externe définit une section proximale, une section distale et une lumière centrale qui s'étend de la section proximale à la section distale. La section distale forme une poche et une pointe d'élévateur. La poche présente une paroi de fond et une ouverture supérieure opposée. La pointe d'élévateur s'étend de manière distale par rapport à la poche. L'élément tubulaire interne constitue une fraise qui est reçue dans la poche. Une fois le montage terminé, au moins une partie de la fraise est exposée par rapport à l'élément tubulaire externe via l'ouverture supérieure de la poche. La pointe d'élévateur est conçue pour faciliter l'élévation de tissus mous, tels que des muqueuses, tout en positionnant la fraise à un endroit adéquat, via la poche, afin de découper des tissus plus durs qui sont en contact, tels qu'un cornet nasal ou un os septal/cartilage.

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