Abstract: A device for respiratory assistance includes a tube that may include a deflection section and at least one distribution orifice located downstream of the deflection section. The at least one distribution orifice opens into a main channel of the tube opposite an oblong pressure zone and is for being supplied with a medical fluid.

Abstract: According to the present invention, the tube (4) comprises, downstream of the deflection means (14b), at least one distribution orifice (20D) which opens into the main channel (5) opposite the oblong pressure zone (18) and which can be supplied with a medical fluid (35).

Abstract: The invention relates to an acoustic wave device comprising a layer of ferroelectric material (C) and a substrate (S), characterized in that the layer of ferroelectric material lies between a first electrode (E1) which is deposited on the surface of the substrate or is a constituent part of the substrate and a second electrode (E2) and in that the layer of ferromagnetic material comprises positive first polarization domains (D1) and negative second polarization domains (D2)

Abstract: A tubular respiratory assistance device which forms the wall of a main channel and is intended to be connected by its distal end to a patient's airway, so that the main channel connects the patient's respiratory system to the outside, and which has at least one auxiliary channel which is associated with deflection means for injecting a respiratory gas jet which is deflected toward the interior of the main channel and is intended to ventilate the patient. The tubular respiratory assistance device also has an annular chamber arranged at the periphery of it, coaxially with it on its distal end, and a distal annular orifice, the annular chamber communicating with the patient's respiratory system by means of the distal annular orifice and being provided with means for connection to the outside. Also, a respiratory assistance mask intended to be fitted to a patient's face which has this tubular respiratory assistance device for inlet and outlet of respiratory gas.

Abstract: A respiratory assistance device comprises a respiratory aid tube whose distal extremity, intended to be introduced into the windpipe of a patient, is provided with an inflatable ballonet and means for bringing the respiratory gas into the lungs of the patient by means of said tube. The device includes pressure sensors in the ballonet and at the distal end of the tube which provide signals to an electronic controller for controlling the feed of respiratory gas to the patient.

Abstract: A respitory assistance apparatus which includes:(a) a plurality of outputs (7.1 to 7.n), each of which can assist one patient;(b) a plurality of links (8.1 to 8.n) which respectively connect a respiratory gas source to one of the outputs of the apparatus;(c) a plurality of links (9.1 to 9.n) which respectively connect controlled valve means (5), fed with respiratory gas, to one of the outputs of the apparatus, so that each of the outputs of the apparatus receives one link of each of the pluralities; and(d) flow regulator means (10.1 to 10.n) which are mounted on at least some of the links.

Abstract: Device for respiratory assistance, comprising a tube (4) which forms a main channel (5) and which is intended to be connected via its distal end (3) to the respiratory tract of a patient so that said main channel (5) connects the respiratory system of said patient to the outside, with said device moreover comprising at least one auxiliary channel (8) formed in the wall of said tube (4) and permitting the insufflation of a respirable gaseous jet into said respiratory system and opening into said main channel (5) in the vicinity of the distal end (7) of the latter.According to the invention, this device is distinguished by the fact that it comprises a controlled valve (21) capable of closing at least partially the proximal end of said main channel (5), at least during insufflation of said gaseous jet.

Abstract: The present invention relates to a dilatation catheter designed to be introduced into a canal of the body. The invention finds a particular application in the treatment of diseases of the coronary arteries. According to the invention, the balloon has an outer wall designed to come into contact with the inner wall of the body canal, while in the position of use, and an inner wall fixed in a tight manner to the outer wall to define therewith, while in the position of use, an inner annular cavity. The catheter further includes a support element shaped so as to hold the inner wall of the balloon, in the position of use, while allowing the body fluid to flow in the space between an inner element and the inner wall of the balloon.

Abstract: A catheter for a morphological duct is disclosed, comprising an inflatable sleeve surrounding the distal end of said catheter and connected to the proximal end of said catheter by at least one inflating conduit which can be connected to an inflating device and said inflatable sleeve may take on either a deflated state in which it is applied against said distal end of said catheter, or an inflated state in which it is applied by its external wall against the internal wall of said morphological duct, then forming an annular space between its internal wall and said distal end of said catheter.

Abstract: Breathing aid comprising a tube (4) which forms a main channel (5) and which is intended to be connected by its distal end (3) to a breathing tract of a patient so that the main channel (5) connects the breathing system of the patient to the outside. The breathing aid further comprising at least one auxiliary channel (8,8.1) for injecting a gas jet for ventilating the patient and opening into the main channel (5) close to the distal end (7) thereof. According to the invention this device is characterized in that at least the distal end of the auxiliary channel (8,8.1) opening into the main channel (5) is parallel thereto and in that, opposite the distal orifice (17) of the auxiliary channel (8,8.1), a face (14b) is provided for deflecting the breathable ventilation gas jet towards the inside of said main channel (5).

Abstract: A probe intended to be introduced within a living body, of the type comprising an elongated structure adapted to be introduced in a canal in said living body conveying a fluid, and presenting, at its end intended to be introduced in the canal, a single bag element connected to said structure, surrounding the latter and radially deformable so as to be able to come into contact with the inner wall of said canal. According to the invention, this probe is characterized in that it comprises at least one conduit (8), connected to said structure (3), extending at least substantially parallel to said structure (3) and outside the latter, over a distance corresponding substantially to the longitudinal dimension of said bag element (5), so as to be able to place in communication those parts (2a, 2b) of said canal (2) immediately upstream and downstream of said bag element (5) in order thus to maintain a minimum circulation of fluid in said canal (2).

Abstract: This invention relates to a catheter for shooting a laser beam, comprising an optical fiber contained in a sheath, as well as an optical system, wherein said optical system obturates the distal end of said sheath, and, between the distal end of said optical fiber and said optical system, there is formed a chamber which is in communication with a supply conduit and with a return conduit for an optically neutral cooling fluid.