| 摘要 |
<p>A tracheostomy tube includes a tubular element that has a first straight section (62) which forms the patient-proximal end of the tube, a second straight section (61) which forms a machine-proximal end of said tube, and an intermediate curved section (63), wherein the two straight tube sections (61, 62) lie in a common plane. At least that part of the tube which passes through the opening made in the frontal wall of the trachea has a generally oval cross-sectional shape as viewed perpendicular to the long axis of the tube, wherein the minor axis of the oval cross-section is orientated generally in the curvature plane of the tube, and wherein the external ovality of the oval cross-section lies in the range of 1:12-1:1.40. The invention also relates to the use of a coniostomy tube of such design as a tracheostomy tube.</p> |
