Surgical laryngoscope blade and method of manufacture

A method for producing a medical instrument in the form of an integrally designed surgical laryngoscope blade, the laryngoscope blade comprising a shaft with an elongate base body that extends between a proximal end and a distal end and which forms a central main channel and at least one auxiliary channel that is usable as a light guide channel, wherein the main channel comprises a proximal end profile at the proximal end and a distal end profile at the distal end, wherein the proximal end profile has an at least approximately oval design, wherein the proximal end profile has a major axis, wherein the distal end profile has a major axis, wherein the major axis of the proximal end profile and the major axis of the distal end profile are oriented orthogonal to one another, and wherein the at least one auxiliary channel is spaced apparat from the main channel in a proximal end region adjacent to the proximal end of the base body and opens into the main channel in the distal end region adjacent to the distal end;

• the method including the following steps:
• providing a data embodiment of a shaft of the surgical laryngoscope blade,
• manufacturing the shaft integrally in an additive manufacturing method on the basis of a powdery metallic initial substance while giving due consideration to the data embodiment, and
• connecting the shaft to a handle at the proximal end of the base body of the shaft.

A surgical laryngoscope blade integrally made of a metallic base material, comprising a shaft with an elongate base body extending between a proximal end and a distal end and that forms a central main channel and at least one auxiliary channel,

• wherein the main channel comprises a proximal end profile at the proximal end and a distal end profile at the distal end,
• wherein the proximal end profile has an at least approximately oval design with a major axis,
• wherein the distal end profile has a major axis,
• wherein the major axis of the proximal end profile and the major axis of the distal end profile are oriented orthogonal to one another,
• wherein the at least one auxiliary channel is spaced apart from the main channel in a proximal end region adjacent to the proximal end of the base body and opens into the main channel in a distal end region adjacent to the distal end,
• wherein the distal end profile is oval, ovoid, or cam shaped,
• wherein the main channel comprises a circumferential wall in the base body and wherein at least portions of the at least one auxiliary channel are adjacent to the main channel and, the at least one auxiliary channel comprises a circumferential wall, and wherein at least portions of the circumferential walls of the at least one auxiliary channel and main channel intersect in an intersection region, and
• wherein a transition between the circumferential walls of the at least one auxiliary channel and main channel is groove free.