A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/02 (2006.01) A61B 5/021 (2006.01) A61B 5/022 (2006.01) G06F 17/10 (2006.01)
Patent
CA 2655049
Improved apparatus and methods for non-invasively assessing one or more parameters associated with systems such as fluidic circulating systems (e.g., the circulatory system of a living organism). In a first aspect, an improved method of continuously measuring pressure from a compressible vessel is disclosed, wherein a substantially optimal level of compression for the vessel is achieved and maintained using dynamically applied dither perturbations (e.g., modulation) on the various axes associated with the vessel. In a second aspect, an improved apparatus and method are provided for monitoring hemodynamic parameters, such as blood pressure, in a continuous and non-invasive manner while operating under a single unifying scheme. One variant of this scheme using a simulated annealing (SA) type approach to determining and maintaining an optimal operating state.
L'invention concerne un appareil et des procédés améliorés pour évaluer de manière non invasive au moins un paramètre associé à des systèmes tels que des systèmes de circulation fluidique (par exemple le système circulatoire d'un organisme vivant). Dans un premier aspect, l'invention concerne un procédé amélioré de mesure en continu de la pression d'un vaisseau compressible, le niveau sensiblement optimal de compression du vaisseau étant atteint et conservé par des perturbations vibratoires appliquées dynamiquement (par exemple modulation) sur les différents axes associés au vaisseau. Dans un second aspect, l'invention concerne un appareil et un procédé améliorés pour surveiller des paramères hémodynamiques, par exemple la pression artérielle, d'une manière continue et non invasive, tout en fonctionnant selon un programme d'unification simple. Une variante de ce programme utilise une approche de type recuit simulé (SA) pour déterminer et conserver un état d'exploitation optimal.
Craycroft Warren B.
Gallant Stuart L.
Goharlaee Manouchehr
Katayama Andrew S.
Keitel Todd A.
Gowling Lafleur Henderson Llp
Tensys Medical Inc.
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