A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/05 (2006.01) A61L 2/00 (2006.01)
Patent
CA 2516559
The invention comprises a system, catheter (20) and method for measuring the cross-sectional areas and pressure gradients in any hollow organ, such as, for example, blood vessels. One embodiment of such a system includes: an impedance catheter (20) capable of being introduced into a targeted site; a solution delivery source (106); a constant current source; a balloon inflation control device (105); and a data acquisition and processing system (100) that receives conductance and/or pressure gradient data from the catheter (20) and calculates the cross-sectional area of the targeted site. In one embodiment, the catheter (20) has an inflatable balloon along its longitudinal axis, thereby enabling the breakup of any materials causing stenosis at the targeted site and/or distention and delivery of an optional stent into the targeted site.
L'invention concerne un système, un cathéter (20) et un procédé pour mesurer les parties transversales et les gradients de pression dans un organe creux, tel que des vaisseaux sanguins. Dans un mode de réalisation, le système comprend un cathéter (20) d'impédance pouvant être introduit dans un site cible ; une source (106) de distribution de la solution ; une source de courant constant ; un dispositif (105) de commande du gonflage du ballon (105) ; et un système (100) d'acquisition et de traitement des données, lequel reçoit le gradient de conductance et/ ou de pression du cathéter (20) et calcule la partie transversale du site cible. Dans un autre mode de réalisation, le cathéter (20) comprend un ballon gonflable le long de son axe longitudinal, ce qui permet le décollement des matières provoquant la sténose sur le site cible et/ou la distension et la distribution d'un stent éventuel dans le site cible.
Gregersen Hans
Kassab Ghassan S.
Movahed Mohamed Reza
Electro-Cat Llc
Smart & Biggar
LandOfFree
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