A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/03 (2006.01)
Patent
CA 2402255
An apparatus (10) and method are disclosed for measuring the compliance of the lower esophageal sphincter (21) (LES), the apparatus comprises a catheter (12) having a plurality of extendable members (28, 30, 32) disposed there along for both measuring the compliance of the LES and stimulating the esophagus (19) which relaxes the LES to obtain a more clinically relevant measurement of LES compliance. In one embodiment, the plurality of extendable members include a first balloon (28) which is located and inflated within the esophagus to trigger esophageal motility, a second, non-elastic balloon (30) that is positioned within the LES, and a third balloon (32) which is inflated within the stomach (23) to help align the second balloon with LES. Incrementally increasing volumes of air are introduced into the second balloon, with the resulting pressures exerted by the LES calculated and compared to normative values to assess the condition of the LES.
L'invention concerne un appareil (10) et une méthode permettant de mesurer la compliance du sphincter oesophagien (21) inférieur (LES). Ledit appareil comprend un cathéter (12) possédant une pluralité d'éléments extensibles (28, 30, 32) disposés le long dudit cathéter pour à la fois mesurer la compliance du LES, et stimuler l'oesophage (19) qui détend ledit LES de façon à obtenir une mesure cliniquement plus appropriée de la compliance du LES. Selon un mode de réalisation, la pluralité d'éléments extensibles comprend un premier ballonnet extensible (28) situé et gonflé dans l'oesophage afin de déclencher la motilité oesophagienne, un second ballonnet (30) non élastique placé dans le LES, et un troisième ballonnet (32) gonflé dans l'estomac (23) afin de favoriser l'alignement avec le second ballonnet dans le LES. Des volumes d'air augmentés par incrémentation sont introduits dans le second ballonnet, les pressions résultantes exercées par le LES étant calculées et comparées aux valeurs normatives afin d'évaluer l'état du LES.
Cassan Maclean
Wilson-Cook Medical Inc.
LandOfFree
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