Abstract: An active stylus having physical writing function includes a tip shell including a first opening and a second opening, a first electrode including a first end protruded through the first opening of the tip shell and including a second end protruded through the second opening of the tip shell and entered a main body housing of the active stylus, wherein the first electrode includes conductive material. The tip shell includes non-conductive material. The first end of the first electrode is configured to leave colored traces on an object by physical friction caused between the first end of the first electrode and the object.

Abstract: A circulating tumor cell capture device includes a chip system and a pump. The chip system includes a confluence chip and a lower chip set. The lower chip set is disposed at a lower surface of the confluence chip, and includes a channel chip, a split chip and a porous membrane. The channel chip is disposed at the lower surface of the confluence chip. The split chip is detachably stacked below the channel chip. The porous membrane is embedded in the channel chip. The specimen passes through the porous membrane and flow between the channel chip and the split chip to make the circulating tumor cell be captured by the porous membrane.

Abstract: A circulating tumor cell capture device includes a chip system and a pump. The chip system includes a confluence chip and a lower chip set. The lower chip set is disposed at a lower surface of the confluence chip, and includes a channel chip, a split chip and a porous membrane. The channel chip is disposed at the lower surface of the confluence chip. The split chip is detachably stacked below the channel chip. The porous membrane is embedded in the channel chip. The specimen passes through the porous membrane and flow between the channel chip and the split chip to make the circulating tumor cell be captured by the porous membrane.