Seeing Within
Set of attachments for the Cruise Endoscope for accessing different parts of the body.
Understanding what lies beneath the skin has always been essential to diagnosing and treating disease. Before modern imaging technologies, the interior of the living body could not be easily seen. Doctors had to find ways of looking beyond the limits of external examination.
The Cruise Endoscope, designed in 1865 by Sir Francis Richard Cruise, belongs to this history of inspection. Using light, reflection and carefully angled mirrors, it allowed doctors to examine internal spaces that were otherwise hidden from view. In this instrument, light was not only a practical aid, but a means of turning the unknown interior of the body into something that could be observed and interpreted.
The Phantom Larynx shows how this kind of visual knowledge also had to be taught. Made as a teaching model, it allowed medical students to practise indirect laryngoscopy and learn how to recognise the larynx through mirror-based examination before working with patients.
Today, technologies such as endoscopy, X-rays and digital imaging have transformed the way we examine the body.
This rare surviving endoscope was designed in 1865 by Sir Francis Richard Cruise (1834–1912), a Dublin physician and surgeon trained at Trinity College and the Richmond Hospital. Cruise later worked at the Mater Hospital, lectured at the Carmichael School, and became President of the Royal College of Physicians of Ireland. His endoscope improved on earlier designs by using a paraffin-fuelled lamp to produce stronger light, which was focused through a lens and reflected by an angled mirror into the body. This allowed doctors to inspect internal spaces that had previously been difficult to see directly. Used for both diagnosis and treatment, the instrument shows how light, mirrors and careful technique helped transform examination from touch and guesswork into visual investigation.
This German-made teaching model was used to help medical students learn how to identify different diseases of the mouth and throat.
It uses materials including velvet to give the impression of tissue and muscle forming resistance on the instruments inserted to push down on the tongue, for example. Interchangeable images of the larynx, inserted, would be reflected back in an attempt to replicate the view that a doctor could see when examining a patient.