Abstract: A system designed to enable persons incapable of manipulating a writing implement to sign papers and/or documents comprising a holder for the document to be signed, a holder for a transfer sheet for holding the transfer sheet adjacent that portion of the document to be signed and an implement defining the signature to be applied to the document for pressing the transfer sheet into transferring engagement with the document.

Abstract: The detector provides an effective means of non-invasively monitoring the perfusion of blood by external cardiac massage during a cardiac arrest. A Doppler probe is adhesively placed on the patient's skin, preferably to sense the carotid pulse which has been found as the most significant indicator of sufficient cerebral perfusion. The electronic part of the detector measures both the period of blood flow (T.sub.f), and the period of the external cardiac massage (ECM) cycle (T.sub.ecm). The electronic components comprise a flow detector such as a Doppler sensor and Schmidtt trigger, a rate converter such as a frequency to voltage converter feeding a voltage controlled oscillator, and a counter and display. The preferred display is a series of ten light indicators for demarcating perfusion ratio in 10% increments.