Introduction appts. for fibre optic colon scope - has pliable insertion part with outwardly sealed intermediary space between inner and outer walls

摘要

The outer wall (18) of the insertion part (14) is formed from a flexible hose which is not expandable balloon fashion by fluid in the intermediate space (20). The inner wall (16) of the insertion part is also formed as a flexible hose. On the outside of the inner wall and on the inside of the outer wall support bodies (32, 36) are arranged, via which the inner and outer walls support one against the other if the pressure in the intermediate space does not exceed a predetermined value. At least some of the support bodies (32, 36) extend in the peripheral direction of the inner and outer walls as all-round reinforcements. The support bodies have a socket-type shape on the inner wall, and engage in correspondingly shaped bodies on the outer wall. USE - As the insertion part of a fibre optic colonoscope or gastroscope for medical investigatory purposes.