Invention Grant
US08167843B2 Trocar with retention cannula 有权
套管带保留插管

Trocar with retention cannula
Abstract:
A trocar comprises a retention cannula comprising an inverted or incised retention pattern disposed thereon. Embodiments of the incised cannula exhibit reduced tissue trauma compared with screw-threaded cannula, improved fixation and/or retention compared with an unthreaded cannula, and good sealing between the cannula and the incision.
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