Abstract: A discrete bioelectrical impedance identification device, comprising a control module (1) and a detection module (2), wherein the control module (1) comprises a control shell (20) and a control processing circuit (21) provided inside the control shell (20); the control shell (20) is provided with conducting strips (201) which are partially exposed out of the control shell (20); the conducting strips (201) are electrically connected to the control processing circuit (21), wherein the detection module (2) comprises a detection shell (23), a probe (231) embedded in one end of the detection shell (23), a power supply (232) embedded in the other end of the detection shell (23), and a conducting needle group (233) partially exposed out of the shell; the control shell (20) is detachably connected to the detection shell (23); when the control shell (20) is firmly connected to the detection shell (23), the conducting needle group (233) abuts against the conducting strips (201); and when the control shell (20) is separ

Abstract: A device is provided for removing a portion of a patient's skin and leaving an ink mark on the patient's skin to demark the area of the patient's skin where the portion of the patient's skin was removed. The device may include a flexible razor or blade which may be attached to a grip or handle to facilitate cutting accurately. An ink-filled membrane is attached to the blade and/or another part of the device, such as a bottom surface of the blade, such that, when a cut is made, the membrane ruptures, retracts or is otherwise impacted so that the ink is extruded and stains the skin at the location where the cut is made so that the location may be easily located during a subsequent examination.