Surgery device for controlling bleeding, in particular according to an open, laparoscopic or endoscopic operation on a patient, comprising:– at least a biosensor for the detection of blood properties of a patient during, before or at the beginning of a surgical intervention;– a blood position of the instrument with a plurality of blood within the limits of the valve position, the components, wherein at least one thermal blood position within the limits of the component and a biochemical blood position within the limits of the component is provided, and– an optimum adjustment and / or a combination of the individual blood position of the ring as a function of the components are in each case by the biosensor detected blood properties of the patients.
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