| 摘要 |
The invention described herein relates to a handle assembly for biopsy devices, such as bone biopsy core sampling devices and bone marrow aspiration devices, which comprise an outer cannula and stylet component structure. The handle assembly permits securing and removal of the inner stylet from the inside of the outer cannula by virtue of separating top and bottom portions of the handle, and at the same time enhances the comfort and maneuverability of the entire device during its use. In particular, the invention provides a biopsy device comprising a handle assembly, said handle assembly comprising at least two separable handle components together forming a generally elongated arcuate handle. The assembled handle comprises a generally elongate arcuate handle wherein the outward curve is at the top portion and the inward curve is at the bottom portion. The handle assembly comprises four concave arcuate indentations located on the side of the handle and defining corresponding arcuate regions of the outer perimeter of the top portion upper and lower surfaces and the bottom portion upper and lower surfaces. The exterior surface of the handle assembly is smooth and rounded for ergonomic comfort. <IMAGE> |
