Acoustical guidance and monitoring system for endotrachea

Details Acoustical guidance and monitoring system for endotrachea Acoustical guidance and monitoring system for endotrachea

A - Human Necessities

61

B

A61B 5/06 (2006.01) A61B 8/00 (2006.01) A61M 5/46 (2006.01) A61M 16/04 (2006.01) A61M 25/095 (2006.01)

Patent

CA 2410256

An apparatus and method are disclosed for acoustically guiding a distal end (14) of a tube (10) within a body (12). An incident sound pulse is generated and propagated down the tube (10) into the body (12). A plurality of microphones (76, 78) are located in the tube (10) and are positioned to detect pulses travelling through the tube (10). A discriminator (110) distinguishes between incident sound pulses and those that are reflected from within the body. The detected sound pulses are processed to provide an indication of the location of the distal end (14) of the tube (10) within the body (12), to assist with the guidance of the insertion into the body (12), to estimate dimensions of the body (12) adjacent the distal end (14) of the tube (10), and to determine if the tube (10) is obstructed.

L'invention concerne un procédé et un dispositif de guidage acoustique d'une extrémité distale (4) d'un tube (10), à l'intérieur d'un corps. Une impulsion sonore incidente est produite et propagée vers le bas du tube (10), à l'intérieur du corps (12). Plusieurs microphones (76, 78) sont placés dans le tube (10) et positionnés de manière à détecter des impulsions circulant dans le tube (10). Un discriminateur (110) distingue les impulsions sonores incidentes de celles qui sont réfléchies à partir de l'intérieur du corps. Les impulsions sonores détectées sont traitées, de manière à fournir une indication de l'emplacement de l'extrémité distale (14) du tube (10) dans le corps (12), à aider le guidage de l'insertion dans le corps (12), à estimer les dimensions du corps (12) adjacent à l'extrémité distale (14) du tube, et à déterminer si le tube (10) est obstrué.

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