The feet-down tilt position and high CO2 pneumoperitoneum pressure can interfere with the recirculation of blood, and could increase the risk of deep vein thrombosis after laparoscopy.

头高脚低位及高CO2气腹压均可使血液回流不畅，导致术后下肢深静脉血栓发生的风险可能增加。

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Like Kinect, these solutions will have a pair of 640 x 480 camera sensors to measure user position in 3D space, but don't expect them to have motorized tilt functionality or voice recognition -- PrimeSense said it won't be able to make those available for manufacturers, as they're all Microsoft ideas.

ENGADGET: Kinect tech destined for TV-embedded greatness in 2011, HTPC integration later this year

To liberate that fresh prime, you tilt it up and give it a twist, freeing it and locking the carrier in the "ready" position at the same time.

ENGADGET: Insert Coin: Quikdraw targets lens fumblers and multiple camera packers (video)