Echocardiograph, by Cambridge Medical Instruments Ltd., England, 1979. The transducer on the patient's chest generates a high-frequency sound wave. The echoes produced by reflection from the heart produce a characteristic trace on the screen. A permanent trace is also produced. Other cardia events such as the electrocardiogram can be recorded simultaneously. Echocardiograph, Cambridge, England, 1978 Clinical Diagnosis 1978
Two-drawer trolley cabinet for dispensing chiropodial dressings, complete with dressings, maker unknown, 1945-1965 Two-drawer trolley cabinet for dispensing chiropodial dressings Chiropody 1945-1965
"Silent Assistant" self sterilizing dental instrument cabinet, by Elge, Paris, 1950-1960 "Silent Assistant" self sterilizing dental instrument cabinet Dentistry
"Surqual" hot air sterilizer, dental, English manufacture, 1935-1955 "Surqual" hot air sterilizer Dentistry 1935-1955
Peristaltic pump, metal, for experimental use, by Picador, from Middlesex Hospital, English, 1950-1960 Peristaltic pump Laboratory Medicine 1950-1960
'Ultratherm' electrotherapeutic machine, probably for short-wave diathermy, with four groups of two electrodes, by General Radiological, British, 1946. Sheet metal cabinet on casters with pyramid-shaped lid, with electrode rod attachments on one side of cabinet. 'Ultratherm' electrotherapeutic machine Therapeutics 1946
