| 摘要 |
Tools and methods are provided for removing biological units from a body surface utilizing a removal tool. The tools incorporate occluding members to help retain the biological unit in the removal tool and assist in severing the biological unit from the surrounding connective tissue. The occluding member may be located at a distal end of the tool and close in an iris configuration over the distal tool tip or the occluding member may constrict along the tool midsection. The occluding member may be an elastomeric sleeve or it could comprise filaments that are arranged to constrict upon being twisted or rotated. The tools are especially useful for removing follicular units from a body surface in a hair transplantation process, and especially in the context of a robotic system.
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