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Aeby, CH
Fabien Aeby, Avenches CH
| Patent application number | Description | Published |
|---|---|---|
| 20090153221 | POLYPHONIC SOUND GENERATING METHOD - Method of driving an acoustic piezoelectric transducer ( | 06-18-2009 |
Francois Aeby, Montagny CH
| Patent application number | Description | Published |
|---|---|---|
| 20110039227 | METHOD AND DEVICE FOR DETERMINING THE APICAL POSITION IN A DENTAL ROOT CANAL - The invention relates to an apex-locating method and device for determining the depth position of the apex in a dental root canal. It uses a device making it possible to form a circuit comprising a first probe electrode inserted into the root canal of a tooth, a second electrode in conductive contact with an oral mucous membrane, frequency-generating means able to produce alternating electrical signals at a number of frequencies, and means for measuring electrical magnitude of alternating signals in the circuit. | 02-17-2011 |
Francois Aeby, Yverdon CH
| Patent application number | Description | Published |
|---|---|---|
| 20090081608 | Instruments for the treatment of radicular dental canals - Instrument for the treatment of the apical portion of radicular dental canals, has a conical shaft ( | 03-26-2009 |
Francois Aeby, Montagny-Pres-Yverdon CH
| Patent application number | Description | Published |
|---|---|---|
| 20100233650 | Instrument for the treatment of radicular dental canals - Instrument for the treatment of the apical portion of radicular dental canals, has a conical shaft ( | 09-16-2010 |
Nicolas Aeby, Meyrin - Geneva CH
| Patent application number | Description | Published |
|---|---|---|
| 20110282342 | IRRIGATED FINNED ABLATION HEAD - An irrigated finned ablation head that provides enhanced cooling. The irrigated finned ablation head comprises a plurality of radial fins that are distributed about a central axis and that extend axially from a common base. The plurality of fins are arranged to define a central passageway along the central axis, as well as a plurality of slots therebetween, the slots extending in an axial direction along the irrigated finned ablation head. In one embodiment, the central passageway extends through the irrigated finned ablation head, defining an opening at the distal extremity, with the slots extending from the base to the opening. In another embodiment, the irrigated finned ablation head includes a cap portion at a distal portion that is common to all the radial fins, so that the slots are terminated at the distal portion of the irrigated finned ablation head. The radial flow distribution along the central axis can be tailored by the configuration of the central passageway. | 11-17-2011 |
Nicolas Aeby, Geneva CH
| Patent application number | Description | Published |
|---|---|---|
| 20080294144 | Touch Sensing Catheter - A touch sensing catheter having a strain sensor assembly that may resolve the magnitude and direction of a force exerted on a distal extremity of the catheter, the strain sensor assembly being substantially insensitive to bulk temperature changes. A deformable structure having a plurality of optical fibers associated therewith that are strained by the imposition of a contact force transferred thereto. The optical fibers cooperate with the deformable structure to effect variable gap interferometers, such as Fabry-Perot resonators, that vary in operative length when a force is exerted on the deformable structure. The strain sensor assembly is rendered insensitive to bulk temperature changes by matching the coefficient of thermal expansion of the deformable body with that of the optical fibers. The strain sensor assembly may also be configured to mitigate the effects of thermal gradients using various thermal isolation techniques. | 11-27-2008 |
| 20100298826 | METHOD AND APPARATUS FOR CONTROLLING LESION SIZE IN CATHETER-BASED ABLATION TREATMENT - A method and apparatus that utilizes a force-time integral for real time estimation of lesion size in catheter-based ablation systems. The apparatus measures the force exerted by a contact ablation probe on a target tissue and integrates the force over an energization time of the ablation probe. The force-time integral can be calculated and utilized to provide an estimated lesion size (depth, volume and/or area) in real time. The force-time integral may also account for variations in the power delivered to the target tissue in real time to provide an improved estimation of the lesion size. In one embodiment, the force metric can be used as feedback to establish a desired power level delivered to the probe to prevent steam popping. | 11-25-2010 |
| 20110263934 | CATHETER HAVING TRI-AXIAL FORCE SENSOR - A catheter for diagnosis or treatment of a vessel or organ is provided in which a flexible elongated body includes a tri-axial force sensor formed of a housing and a plurality of optical fibers associated with the housing that measure changes in the intensity of light reflected from the lateral surfaces of the housing resulting from deformation caused by forces applied to a distal extremity of the housing. A controller receives an output of the optical fibers and computes a multi-dimensional force vector corresponding to the contact force. | 10-27-2011 |
Nicolas Aeby, Geneve CH
| Patent application number | Description | Published |
|---|---|---|
| 20090177095 | TRIAXIAL FIBER OPTIC FORCE SENSING CATHETER - A fiber optic force sensing assembly for detecting forces imparted at a distal end of a catheter assembly. The structural member may include segments adjacent each other in a serial arrangement, with gaps located between adjacent segments that are bridged by flexures. Fiber optics are coupled to the structural member. In one embodiment, each fiber optic has a distal end disposed adjacent one of the gaps and oriented for emission of light onto and for collection of light reflected from a segment adjacent the gap. The optical fibers cooperate with the deformable structure to provide a change in the intensity of the reflected light, or alternatively to provide a variable gap interferometer for sensing deformation of the structural member. In another embodiment, the gaps are bridged by fiber Bragg gratings that reflect light back through the fiber optic at central wavelengths that vary with the strain imposed on the grating. | 07-09-2009 |
| 20090287092 | Temperature compensated strain sensing catheter - A strain sensing assembly implements thermal management and/or temperature measurement techniques to adequately mitigate against and compensate for temperature changes in optical fiber strain sensors of a distal end of a catheter. In one embodiment, the distal end of the catheter includes an end effector such as an ablation head that introduces significant thermal temperature changes proximate the distal end of the catheter. In one embodiment, a plurality of temperature sensors is utilized for accurate determination of each of a plurality of optical fiber strain sensors. In other embodiments, a single temperature sensor may be utilized by implementing thermal management techniques that adequately reduce temperature differences between the single temperature sensor and the plurality of optical fiber strain sensors. | 11-19-2009 |
Nicoloas Aeby, Geneva CH
| Patent application number | Description | Published |
|---|---|---|
| 20110087112 | Medical apparatus system having optical fiber load sensing - Apparatus is provided for diagnosing or treating an organ or vessel, wherein a device having at optical fiber contact force sensors disposed in a distal extremity thereof and a deflection mechanism configured to deflect the elongate body at a location proximal of the distal extremity. The optical fiber contact force sensors are configured to be coupled to processing logic programmed which computes a force vector responsive to detected changes in the optical characteristics of the optical fiber contact force sensors arising from deflection of the distal extremity resulting from contact with the tissue of the wall of the organ or vessel. | 04-14-2011 |