MEDICAL APPARATUS FOR MEASUREMENT OR ANALYSIS OF BLOOD PRESSURE WAVE FORMS; NAMELY, AN INVASIVE INSTRUMENT AND UNIT COMPRISED OF A COMPUTER MONITOR USED TO OBTAIN BLOOD PRESSURE WAVE DATA BY MEANS OF AN INDWELLING CATHETER, A TRANSDUCER-AMPLIFIER AND ANALOG-DIGITAL CONVERTER BOARD PRODUCING READABLE MEDIA DATA FOR ANALYSIS OF BLOOD PRESSURE IN CLINICAL RESEARCH; ALSO AN INSTRUMENT AND UNIT COMPRISED OF A COMPUTER, ELECTRONIC DISPLAY AND CONNECTION TO DIAGNOSTIC PATIENT MONITORS IN HOSPITAL INTENSIVE CARE UNITS AND INTENSIVE CORONARY CARE UNITS FOR ANALYSIS OF ARTERIAL VASCULAR COMPLIANCE AND/OR CARDIAC OUTPUT VALVES; AND A NON-INVASIVE BLOOD PRESSURE ANALYSIS INSTRUMENT AND UNIT COMPRISED OF A STANDARD OR PRIMARY BLOOD PRESSURE CUFF, A SECONDARY BLOOD PRESSURE CUFF USED IN ANOTHER LOCATION ON THE PATIENT, A COMPUTER AND ELECTRONIC DISPLAY FOR ANALYSIS OF ARTERIAL VASCULAR COMPLIANCE AND/OR CARDIAC OUTPUT VALVES FOR USE BY PHYSICIANS IN OFFICES, HOSPITALS AND CLINICS