MEDICAL APPARATUS, NAMELY AN EX VIVO ANATOMICAL PUMP, IMPULSE GENERATOR AND CONTROLS THEREFOR, SOLD AS A UNIT AND USED FOR THE FOLLOWING; THE REDUCTION OF POST OPERATIVE AND POST TRAUMATIC PAIN AND SWELLING; FOR THE REDUCTION OF COMPARTMENTAL PRESSURES TO AVOID FASCIOTOMY AND ASSOCIATED COMPLICATIONS; FOR PRE-OPERATIVE AND POST-OPERATIVE PROHYLAXIS OF DEEP VEIN THROMBOSIS; FOR THE TREATMENT OF SUDECK'S SYNDROME (REFLEX SYMPATHETIC DYSTROPHY); FOR MAINTAINING PATENCY AND REDUCING EDEMA IN HIGH-RISK LIMB BYPASS GRAFTS, I.E. FEMORODISTAL TIBIAL GRAFT; FOR A REDUCTION IN REST PAIN AND MAINTENANCE OF CIRCULATION IN PATIENTS AWAITING SURGERY; FOR THE STIMULATION OF CIRCULATION IN PERIPHERAL VASCULAR DISEASE IN THE CRITICALLY ISCHAEMIC LIMB TO MAINTAIN LIMB VIABILITY; FOR THE TREATMENT OF EXACERBATIONS OF RAYNAUD'S DISEASE; FOR THE STIMULATION OF CIRCULATION IN PATIENTS AT RISK OF DEVELOPING ISCHAEMIC ULCERATION (DIABETES, ETC.); FOR THE ENHANCEMENT OF BLOOD SUPPLY PRIOR TO GRAFTING; AND FOR THE TREATMENT OF VENOUS ULCERATION AND IN THE AVOIDANCE OF RECURRENCE