Abstract

The present invention relates to an aqueous geopolymer composition based on dredging sediments, to a geopolymer material obtained from the aqueous geopolymer composition, to the use of the aqueous geopolymer composition as a binder for producing a concrete, a filling grout, a concrete pavement, a compacted road layer, bricks, a retaining wall, a dock breakwater, or a precast concrete, and to a concrete comprising the geopolymer material.

IPC Classes  ?

• C04B 28/00 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
• C04B 18/04 - Waste materialsRefuse

Abstract

An implantable device for cardiac assistance by direct compression, including a base forming a receptacle for receiving the lower part of a heart, a support for fixing the lower part of the heart to the base, at least one finger extending longitudinally between a free upper first end and a curved lower second end inside the base, the finger being mounted on the base via a first pivot connection, a contact interface mounted adjustably and movably on the free end, an actuator for actuating the tilting movement of the finger about the pivot connection, and a control unit for controlling the actuator is disclosed.

IPC Classes  ?

• A61M 60/191 - Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient’s body implantable in, on, or around the heart mechanically acting upon the outside of the patient’s native heart, e.g. compressive structures placed around the heart
• A61M 60/289 - Devices for mechanical circulatory actuation assisting the residual heart function by means mechanically acting upon the patient's native heart or blood vessel structure, e.g. direct cardiac compression [DCC] devices
• A61M 60/47 - Details relating to driving for devices for mechanical circulatory actuation the force acting on the actuation means being mechanical, e.g. mechanically driven members clamping a blood vessel
• A61M 60/523 - Regulation using real-time patient data using blood flow data, e.g. from blood flow transducers

Abstract

A method for focusing acoustic waves on an interface between two layers of a multilayer structure includes providing laser means able to emit a laser beam toward an exterior surface of the multilayer structure to produce a longitudinal wave from the centre of a laser-beam spot projected onto the exterior surface and a transverse wave from the periphery of said spot, determining the distance between said interface and the exterior surface, determining one or more propagation velocities of each of the longitudinal wave and the transverse wave in the one or more layers passed through by said waves to reach said interface, and determining a radius of the laser-beam spot depending on the one or more propagation velocities and on said distance so that the time taken by the longitudinal wave to reach said interface is equal to three times the time taken by the transverse wave to reach said interface.

IPC Classes  ?

• G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated

Abstract

A thermal energy storage device (1) comprises a storage unit, formed by a reservoir (3) for receiving a thermal energy storage material (5) and a closure device (2) configured to close the opening of the reservoir, and a sealing system for sealing the storage unit, said thermal energy storage material (5) consisting of anhydrous lithium hydroxide having a purity greater than 96% or lithium hydroxide monohydrate with a purity greater than 56%.

IPC Classes  ?

• F28D 20/02 - Heat storage plants or apparatus in generalRegenerative heat-exchange apparatus not covered by groups or using latent heat
• C09K 5/06 - Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice-versa

Abstract

A modular comb element for a machine for automatically cutting a mat of sheets of material. The cutting machine includes a plurality of cutting supports. The comb element includes a plate forming a support from which a first and a second row of teeth extend longitudinally. The teeth of the first row alternate with the teeth of the second row, and a free end of the teeth of the first row are farther from a downstream edge of the support than a free end of the teeth of the second row of teeth. A ramp is mounted on the downstream edge of the support and inclined with respect to the latter so as to limit the contact surface between the mat of sheets and the comb element. Air injection means are at a downstream edge of the ramp over an entire width thereof.

IPC Classes  ?

• B26D 7/20 - Cutting beds
• B26D 7/01 - Means for holding or positioning work
• B26D 7/06 - Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
• B26D 7/32 - Means for performing other operations combined with cutting for conveying or stacking cut product

Abstract

The present invention relates to an assembly for a turbomachine turbine extending along an axis (X), comprising: —an ejection cone (100) comprising a radially outer annular wall (102) defining a flow duct for a flow of hot gases and a sound box radially arranged inside the outer annular wall (102), the sound box comprising a radially inner annular wall (104), —a connecting member (106) intended to be axially inserted between the exhaust housing and the ejection cone (100), the connecting member (106) comprising an upstream annular flange (108) intended to be attached to the exhaust housing and a plurality of downstream securing tabs (110) connected to the inner annular wall (104), —an annular sealing shroud (112) comprising an upstream portion surrounding the securing tabs (110) of the connecting member (106) so as to cover the spaces circumferentially located between the securing tabs (110) and axially located between the upstream annular flange (108) of the connecting member (106) and the radially inner annular wall (104).

IPC Classes  ?

• B65H 54/02 - Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
• B22F 10/22 - Direct deposition of molten metal
• B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
• B22F 12/50 - Means for feeding of material, e.g. heads

Abstract

The invention relates to a method for automatically controlling the triggering of the sharpening of the cutting edge of a cutting blade for a cutting machine, involving determining (S02) components of a torsor of the mechanical actions at the point of guidance of the cutting blade in the frame of reference of the blade; determining (S03) a permissible threshold value for a variable established from at least one of the components of the torsor of the mechanical actions and as a function of geometric parameters of the cutting blade and of thickness and material characteristics of the bat that is to be cut; monitoring, during the cutting of the material, variations in amplitude of the variable selected for determining the threshold value; and automatically triggering (S07) an alert to call for a cycle of sharpening the cutting edge of the cutting blade as soon the amplitude of the variable selected for determining the value of the threshold reaches said threshold value.

IPC Classes  ?

• G05B 19/4065 - Monitoring tool breakage, life or condition

Abstract

The invention relates to a method for determining components of a mechanical action torsor at the guiding point of a cutting blade (L) for a cutting machine, the blade being guided in a presser foot (P) of a cutting head of the machine, the method comprising the positioning of a five-component dynamometer on the presser foot, the dynamometer comprising a plurality of sensors for determining a frontal force, a lateral force, a rolling moment, a pitching moment and a yawing moment of the cutting blade, the establishment of a calibration matrix of the dynamometer, and the determination of the forces in three dimensions to which the cutting blade is subjected, on the basis of the measurements obtained by the sensors and the calibration matrix.

IPC Classes  ?

• B26F 1/38 - Cutting-outStamping-out
• B26D 5/00 - Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting

Abstract

The present invention relates to a method for producing (1) a reel for a filament, said method comprising the steps of: - extruding (2) a blend of crystalline or semicrystalline binders and at least 90% by weight or 60% by volume of metal or ceramic powder so as to obtain a filament; - quenching (3) said filament at a predetermined quenching temperature in order to reduce, by between 5% and 15%, a degree of crystallinity in said binders; - winding (4) said filament around the reel at a temperature of between 10°C and a temperature below the quenching temperature.

IPC Classes  ?

• B29C 48/05 - Filamentary, e.g. strands
• B29C 48/88 - Thermal treatment of the stream of extruded material, e.g. cooling
• B29C 48/02 - Small extruding apparatus, e.g. handheld, toy or laboratory extruders

Abstract

A modular cutting-support element with suction in a machine for automatic cutting of sheet material by means of blades, includes a plurality of bristles arranged in the same single line, at least some of the bristles each having a base rigidly connected to a bearing plate intended to be mounted on a support, a head opposite the base on which a sheet material to be cut is intended to rest, and a stem connecting the head to the base, the largest cross-section of which is strictly included in the largest cross-section of the head, the bearing plate comprising, on each of its side surfaces, a plurality of transverse channels for the passage of suction air providing communication between an upper surface of the bearing plate from which the bristles extend and an inner surface opposite the upper surface.

IPC Classes  ?

• B26D 7/01 - Means for holding or positioning work
• B26D 7/20 - Cutting beds

Abstract

A machining spindle that includes a tool-holder shaft (2), a first actuator connected to a coupling member (11) slidably connected to a first section (21) of the shaft to rotate the shaft, a second actuator connected to a nut helically connected to a second section (22) of the shaft to move the shaft axially and a control rod (24) of a tool-holder attachment system connected to the second section by a full connection. The spindle includes a locking arrangement (40) mounted movable between the first and second sections by a switchover arrangement (50), between a first position in which the first and second sections are in full connection and a second position allowing axial movement of the second section relative to the first section, enabling the control rod to be moved axially under the action of the second actuator to control the attachment system in a released position of the tool holder.

IPC Classes  ?

• B23B 31/26 - Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle
• B23C 5/26 - Securing milling-cutters to the driving spindle
• B23Q 5/32 - Feeding working-spindles

Abstract

Method for manufacturing a tridimensional blood vessel model using stereolithography and optionally cell culture. Applications include surgery training, research on pathology such as SCDs and in vitro drug testing e.g. for antiplatelets. Existing models are not compatible with cell culture and cannot withstand high pressure, as opposed to the present invention. Stereolithography allows modelling of complex vessels such as carotid siphons as opposed to other existing methods.

IPC Classes  ?

• G09B 23/30 - Anatomical models
• C12N 5/071 - Vertebrate cells or tissues, e.g. human cells or tissues
• G06T 19/20 - Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
• G06T 7/00 - Image analysis
• B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified

Abstract

The present invention relates to an implantable device for cardiac assistance by direct compression, characterized in that it comprises: - a base (1) forming a receptacle for receiving the lower part of a heart (9), - a support (2) for fixing the lower part of the heart to the base, - at least one finger (3) extending longitudinally between a free upper first end (35) and a curved lower second end (36) inside the base, the finger being mounted on the base via a first pivot connection (12), - a contact interface (4) mounted adjustably and movably on the free end, - means (5, 6) for actuating the tilting movement of the finger about the pivot connection, - a control unit (10) for controlling the actuating means.

IPC Classes  ?

• A61M 60/191 - Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient’s body implantable in, on, or around the heart mechanically acting upon the outside of the patient’s native heart, e.g. compressive structures placed around the heart
• A61M 60/289 - Devices for mechanical circulatory actuation assisting the residual heart function by means mechanically acting upon the patient's native heart or blood vessel structure, e.g. direct cardiac compression [DCC] devices
• A61M 60/465 - Details relating to driving for devices for mechanical circulatory actuation
• A61M 60/839 - Constructional details other than related to driving of devices for mechanical circulatory actuation
• A61M 60/873 - Energy supply devicesConverters therefor specially adapted for wireless or transcutaneous energy transfer [TET], e.g. inductive charging
• A61M 60/863 - Apex rings
• A61M 60/508 - Electronic control means, e.g. for feedback regulation
• A61M 60/47 - Details relating to driving for devices for mechanical circulatory actuation the force acting on the actuation means being mechanical, e.g. mechanically driven members clamping a blood vessel
• A61M 60/523 - Regulation using real-time patient data using blood flow data, e.g. from blood flow transducers
• A61M 60/515 - Regulation using real-time patient data
• A61M 60/531 - Regulation using real-time patient data using blood pressure data, e.g. from blood pressure sensors
• A61M 60/562 - Electronic control means, e.g. for feedback regulation for making blood flow pulsatile in blood pumps that do not intrinsically create pulsatile flow

Abstract

The present document relates to a method for focusing acoustic waves on an interface (106) between two layers (108, 110) of a multilayer structure (104), the method comprising: - providing laser means able to emit a laser beam (102) toward an exterior surface (112) of the multilayer structure with a view to producing a longitudinal wave (114) from the centre of a laser-beam spot projected onto the exterior surface (112) and a transverse wave (116) from the periphery of said spot, - determining the distance between said interface (106) and the exterior surface (112), - determining one or more propagation velocities of the longitudinal wave and one or more propagation velocities of the transverse wave in the one or more layers passed through by said waves to reach said interface, - determining a radius (r) of the laser-beam spot depending on the one or more propagation velocities and on said distance so that the time taken by the longitudinal wave to reach said interface is equal to three times the time taken by the transverse wave to reach said interface.

IPC Classes  ?

• G01N 29/04 - Analysing solids
• B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
• B23K 26/073 - Shaping the laser spot
• G01L 1/25 - Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, neutrons
• G01N 1/44 - Sample treatment involving radiation, e.g. heat
• G01N 19/04 - Measuring adhesive force between materials, e.g. of sealing tape, of coating
• G01N 29/24 - Probes

Abstract

The invention relates to a modular comb element (10) for a machine (2) for automatic cutting of a mat of sheets of material, the cutting machine comprising a plurality of cutting support members (4) each having a plurality of bristles (6) on which the mat (M) rests, the comb element comprising a plate forming a support member (12) from which a first and a second row of teeth extend longitudinally, the teeth (14) in the first row alternating with the teeth (16) in the second row, and a free end of the teeth in the first row being further away from an upstream edge of the support member than a free end of the teeth in the second row of teeth, a ramp (18) mounted on the upstream edge of the support member and inclined relative to the latter so as to limit the contact surface between the mat of sheets and the comb element, and means for applying air to an upstream edge of the ramp across the entire width of the latter in order to facilitate unloading/loading of the mat of sheets.

IPC Classes  ?

• B26D 7/06 - Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
• B26D 7/20 - Cutting beds
• B26D 7/32 - Means for performing other operations combined with cutting for conveying or stacking cut product

Abstract

Polyphase electric machine (10) comprising a first motion actuation assembly (20) and a rotatable second motion actuation assembly (30), the first and second motion actuation assemblies (20, 30) together defining first and second opposing lateral faces (40, 41) of the polyphase electric machine; the polyphase electric machine further comprising at least one phase generator (50) comprising a plurality of control assemblies (51), each control assembly (51) containing an input module (51a) and an output module (51b), the input and output modules (51a, 51b) being arranged on the first lateral face (40) and on the second lateral face (41) of the polyphase electric machine (10).

IPC Classes  ?

• H02K 11/33 - Drive circuits, e.g. power electronics
• H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
• H02K 21/12 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets
• H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
• H02K 1/20 - Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium

Abstract

The invention relates to a machining system comprising an electric spindle (10) on which tool holders (PO1, PO2, PO3) can be mounted that are able to contain several types of actuator and/or sensor, and a data acquisition and control member for acquiring data from the sensors via at least one signal conditioning circuit (Acq_1 - Acq_4) and controlling the actuators via at least one power electronics circuit (EP_1, EP_2), the system being characterised in that it comprises a switching matrix (40) and a control module (31) capable of receiving unique identification information of the tool holder mounted on the electric spindle and of configuring a switching arrangement of the matrix in order to selectively connect respective power and data paths of the power electronics circuit and the conditioning circuit to the identified tool holder.

IPC Classes  ?

• B23B 35/00 - Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machinesUse of auxiliary equipment in connection with such methods
• B23B 29/12 - Special arrangements on tool holders
• B23B 47/34 - Arrangements for removing chips out of the holes madeChip-breaking arrangements attached to the tool
• G06K 19/00 - Record carriers for use with machines and with at least a part designed to carry digital markings

Abstract

The present document relates to a method for winding a filament (4) for an additive manufacturing device, comprising the steps of: • - providing a filament (4) which is filled with at least 80% metal powder by mass; • - heating the filament (4) up to a temperature of at least 70°C and keeping the filament at this temperature; • - winding the filament (4) about the axis of a coil (110, 142), which is preferably made of metal, the diameter of the coil (110, 142) in the empty state being greater than or equal to a diameter of 100 mm.

IPC Classes  ?

• B22F 12/50 - Means for feeding of material, e.g. heads
• B29C 64/321 - Feeding
• B65H 54/02 - Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
• B22F 10/18 - Formation of a green body by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF]
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling

Abstract

The invention relates to a method for determining components of a mechanical action torsor at the guiding point of a cutting blade (L) for a cutting machine, the blade being guided in a presser foot (P) of a cutting head of the machine, the method comprising the positioning of a five-component dynamometer on the presser foot, the dynamometer comprising a plurality of sensors for determining a frontal force, a lateral force, a rolling moment, a pitching moment and a yawing moment of the cutting blade, the establishment of a calibration matrix of the dynamometer, and the determination of the forces in three dimensions to which the cutting blade is subjected, on the basis of the measurements obtained by the sensors and the calibration matrix.

IPC Classes  ?

• B26D 5/00 - Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
• B26F 1/38 - Cutting-outStamping-out

Abstract

Modular support element for aspirated cutting in a machine for automatic cutting of sheet material The invention relates to a modular support element (4) for aspirated cutting in a machine for automatic cutting of sheet material by means of blades, comprising a plurality of bristles (6) arranged in the same single line, at least some of the bristles each having a base (8) rigidly connected to a bearing plate (10) intended to be mounted on a stand, a head (12) opposite the base on which a sheet material to be cut is intended to rest, and a rod (9) connecting the head to the base, the largest cross-section of which is strictly included in the largest cross-section of the head, the bearing plate comprising, on each of its side surfaces, a plurality of transverse channels (18) for the passage of aspirated air providing communication between an upper surface of the bearing plate from which the bristles extend and an inner surface opposite the upper surface.

IPC Classes  ?

• B26D 7/01 - Means for holding or positioning work
• B26D 7/06 - Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
• B26D 7/20 - Cutting beds

Abstract

The invention relates to a machining spindle comprising a tool-holder shaft (2), a first actuator connected to a coupling member (11) slidably connected to a first section (21) of the shaft in order to rotate the shaft, a second actuator connected to a nut helically connected to a second section (22) of the shaft in order to move the shaft axially and a control rod (24) of a tool-holder attachment system connected to the second section by a full connection. The spindle comprises locking means (40) mounted movable between the first and second sections by means of switchover means (50), between a first position in which the first and second sections are in full connection and a second position allowing axial movement of the second section with respect to the first section, enabling the control rod to be moved axially under the action of the second actuator in order to control the attachment system in a released position of the tool holder.

IPC Classes  ?

• B23B 31/26 - Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle
• B23B 31/28 - Chucks characterised by features relating primarily to remote control of the gripping means using electric or magnetic means in the chuck
• B23Q 5/32 - Feeding working-spindles
• B23Q 5/40 - Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw

Abstract

Method for manufacturing a tridimensional blood vessel model using stereolithography and optionally cell culture. Applications include surgery training, research on pathology such as SCDs and in vitro drug testing e.g. for antiplatelets. Existing models are not compatible with cell culture and cannot withstand high pressure, as opposed to the present invention. Stereolithography allows modelling of complex vessels such as carotid siphons as opposed to other existing methods.

IPC Classes  ?

• G09B 23/30 - Anatomical models

Abstract

The present invention relates to equipment (100) for selectively depositing, by shockwave-induced spraying, at least one particle (11) on a deposition surface (141) of a receiver substrate (140), said equipment comprising: - at least one laser source (101) configured to emit a laser beam (103), said laser beam being made up of a series of light pulses; - a substrate carrier (130) to which the substrate (140) is fastened; - a shockwave-generating layer (120) comprising a first surface (121) that is oriented toward the laser beam and a second surface (122) that is oriented toward the deposition surface (141) of the substrate; - an optical system (102) for directing and focusing said laser beam toward a focal region of the first surface (121) of the generating layer; - said second surface (122) comprising a plurality of cavities (123), each of the cavities housing at least one particle (11); - said laser beam being configured to generate a plasma (104) in the focal region on the first surface (121) of the generating layer and a shockwave (105) that propagates within the generating layer (120) from the first surface to the second surface (122) of the generating layer in order to spray at least one particle (11) in the direction of the deposition surface (141) of the substrate (140).

IPC Classes  ?

• B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor
• B22F 3/08 - Compacting only by explosive forces
• B22F 3/087 - Compacting only using high energy impulses, e.g. magnetic field impulses
• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• C23C 24/04 - Impact or kinetic deposition of particles
• C23C 14/04 - Coating on selected surface areas, e.g. using masks

Abstract

The invention relates to a picosecond acoustic measuring system (100) for analysing a sample (5). According to the invention, the system comprises a transduction means which has a first interface (6) in contact with a transparent substrate (4) and a second interface (3) in contact with the sample (5), a first laser source (101) which is configured to generate a pump beam (201), a second laser source (102) which is configured to generate a first sensor beam (203) and a second sensor beam (204), the pump beam being configured to generate acoustic waves in the transducer means (4), the first sensor beam being configured so as to detect in real time a variation of the coefficient of acoustic reflection of the second interface (3) by elasto-optical coupling, the second sensor beam (204) being configured so as to detect in real time the Brillouin oscillations which are linked to the Brillouin interaction between the second sensor beam (204) and some of the acoustic waves which are propagated in the sample, a photodetection system (116, 117) which is configured to measure simultaneously and at the same location of the sample a signal of variation of the reflectivity at the second interface (3) linked to the Brillouin oscillations and a signal of variation of the reflectivity at the first interface (6) linked to a variation of the coefficient of the acoustic reflection.

IPC Classes  ?

• G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated
• G01N 21/63 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
• G01N 29/24 - Probes

Abstract

A piezoelectric actuator control device comprising a first voltage converter supplying a DC voltage on a DC power supply bus to which is connected a second voltage converter capable of generating a variable excitation voltage under the control of a control computer, the second voltage converter comprising two switch half-bridges mounted in parallel with the terminals of a bus capacitor, the control computer being suitable for controlling the two switch half-bridges according to a first control configuration, in which they are controlled independently in order to each supply a voltage in a range between zero and a maximum positive value and according to a second control configuration, in which they are jointly controlled as a full-bridge for supplying a voltage between a minimum negative value and said maximum positive value.

IPC Classes  ?

• H01L 41/04 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof - Details of piezo-electric or electrostrictive elements
• H02N 2/08 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuatorsLinear positioners using travelling waves, e.g. linear motors
• H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
• H02M 11/00 - Power conversion systems not covered by the other groups of this subclass
• H02N 2/06 - Drive circuitsControl arrangements

Abstract

The invention relates to an acoustic phase mask, the phase mask having a variation of the acoustic index n, characterized in that the phase mask comprises a body comprising: - at least one matrix formed by a deformable solid material, having a shear modulus of less than 10 MPa, and - pores formed in the matrix, the pores being predominantly filled with gas, the deformable solid material extending between the pores, the body having a porosity φ of less than or equal to 50%, and a controlled porosity φ gradient leading to a variation of the acoustic index n spatially in the body.

IPC Classes  ?

• G10K 11/165 - Particles in a matrix
• B01J 2/06 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium

Abstract

The present invention concerns a non-resorbable biocompatible fabric, having pores, that is suitable for being implanted, in particular in the pelvic region of a patient. According to the invention, the fabric characteristically has a density per unit surface area substantially equal to or greater than 16 g/m2and substantially equal to or less than 22 g/m2and substantially equal to 18 g/m2, said pores are through-pores and comprise main pores that are optionally each surrounded by at least one secondary pore and said main pores have a mean diameter substantially greater than or equal to 1.5 mm and substantially less than or equal to 3.5 mm, preferably less than 3.0 mm and in particular equal to 2.1 mm. The invention also concerns a prosthesis, in particular for the treatment of vaginal prolapse, that comprises such a fabric.

IPC Classes  ?

• A61F 2/00 - Filters implantable into blood vesselsProstheses, i.e. artificial substitutes or replacements for parts of the bodyAppliances for connecting them with the bodyDevices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
• D04B 21/00 - Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machinesFabrics or articles defined by such processes
• D04B 1/00 - Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machinesFabrics or articles defined by such processes

Abstract

Some embodiments are directed to an analysis device for board sports, intended to be secured to a board, such as a surfboard or ski, at the interface with the user. The device includes: a force sensor designed to capture one or more forces generated by the user on the board; a position and motion sensor designed to capture the position, speed and acceleration of the board in space; and a processing unit or processor connected to the force sensor and to the position and motion sensor and designed to synchronize and process the data from the sensors.

IPC Classes  ?

• A63F 9/24 - Games using electronic circuits not otherwise provided for
• A63B 69/00 - Training appliances or apparatus for special sports
• A63F 13/807 - Gliding or sliding on surfaces, e.g. using skis, skates or boards
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• B63B 32/00 - Water sports boardsAccessories therefor
• B63B 32/70 - Accessories not specially adapted for a particular type of board, e.g. paddings or buoyancy elements
• A63B 24/00 - Electric or electronic controls for exercising apparatus of groups
• A63B 71/06 - Indicating or scoring devices for games or players
• A63C 5/06 - Skis or snowboards with special devices thereon, e.g. steering devices
• A63C 11/00 - Accessories for skiing or snowboarding
• A61B 5/11 - Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb

Abstract

The invention concerns a piezoelectric actuator control device comprising a first voltage converter (20) supplying a DC voltage on a DC power supply bus (40) to which is connected a second voltage converter (10) capable of generating a variable excitation voltage under the control of a control computer (50), said second voltage converter comprising two switch half-bridges (11, 12) mounted in parallel with the terminals of a bus capacitor (Cdc), the control computer being suitable for controlling the two switch half-bridges according to a first control configuration, in which they are controlled independently in order to each supply a voltage in a range between zero and a maximum positive value (Umax) and according to a second control configuration, in which they are jointly controlled as a full-bridge for supplying a voltage between a minimum negative value and said maximum positive value.

IPC Classes  ?

• H02N 2/06 - Drive circuitsControl arrangements
• H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
• H02M 11/00 - Power conversion systems not covered by the other groups of this subclass

Abstract

The invention relates to a detector device for detecting a threshold speed of displacement of a fluid, the detector device comprising a transducer and being configured to exert a first non-zero force in a first direction when the speed of the fluid is less than the threshold speed and to exert a second non-zero force in a second direction when the speed of the fluid is greater than the threshold speed, the first and the second direction being identical or substantially identical and the first and the second force being directed in opposite directions.

IPC Classes  ?

• G01P 5/02 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
• G01F 1/28 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter

Abstract

The invention relates to an analysis device for board sports, intended to be secured to a board (1), such as a surfboard or ski, at the interface with the user. The device comprises: a force sensor (3) designed to capture one or more forces generated by the user on the board; a position and motion sensor (5) designed to capture the position, speed and acceleration of the board in space; and a processing unit (7) connected to the force sensor and to the position and motion sensor and designed to synchronise and process the data from the sensors.

IPC Classes  ?

• A63F 13/807 - Gliding or sliding on surfaces, e.g. using skis, skates or boards
• B63B 35/79 - Surf-boards, e.g. sailboards
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons

Abstract

The subject of the present invention relates to an optical process for measuring a variation in the temperature of an object (O), comprising: an emitting step (S1) consisting in emitting, in the direction of said object (O), a first incident terahertz electromagnetic wave (W1_inc), and a measuring step (S2) comprising measuring (S2_3), using a sensor sensitive to terahertz radiation (20), a variation in the amplitude of the electromagnetic radiation of a second electromagnetic wave (W2_ref, W2_tra) in order to determine the variation in the temperature of said object (O).

IPC Classes  ?

• G01K 11/00 - Measuring temperature based on physical or chemical changes not covered by group , , , or
• G01K 11/12 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in colour, translucency or reflectance

Abstract

Method for reconstruction of a three-dimensional model of an osteo-articular structure of a patient, wherein a) bi-dimensional patient-specific image data (41) of said structure is provided; (d) a preliminary solution, corresponding to a previously established solution model of the structure, is provided (42) from a base (21), said preliminary solution comprising a priori knowledge of the corresponding structure, previously established from structures of the same type, said preliminary solution comprising surface data describing the coordinates of the surface of the solution model, and bulk data describing at least one characteristic of the inside of the solution model; the preliminary solution is modified (42′, 43, 44, 46, 47, 48) to be brought in concordance with said patient-specific image data.

IPC Classes  ?

• G06G 7/48 - Analogue computers for specific processes, systems, or devices, e.g. simulators
• G06T 7/00 - Image analysis

Abstract

b), a reconstruction of the second object (T12) is obtained based on the modified first object and on the database of structure (21).

IPC Classes  ?

• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints

Abstract

A method comprising: - providing acquisition data (34,38) of a patient, comprising acquisition data of a bone structure of the patient in a given position, providing a knowledge base (22,43,47), comprising data related to such bone structures, - determining a patient-specific position-specific finite-element model of the bone structure comprising: patient-specific three-dimensional geometry, patient-specific mechanical characteristics of the bone structure, and. patient-specific position-specific mechanical load applied to the bone structure in the position.

IPC Classes  ?

• G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)

Abstract

Method for reconstruction of a three-dimensional model of an osteo-articular structure of a patient, wherein a) bi- dimensional patient-specific image data (41) of said structure is provided; (d) a preliminary solution, corresponding to a previously established solution model of the structure, is provided (42) from a base (21), said preliminary solution comprising a priori knowledge of the corresponding structure, previously established from structures of the same type, said preliminary solution comprising surface data describing the coordinates of the surface of the solution model, and bulk data describing at least one characteristic of the inside of the solution model; the preliminary solution is modified (42', 43, 44, 46, 47, 48) to be brought in concordance with said patient-specific image data.

IPC Classes  ?

• A61B 5/107 - Measuring physical dimensions, e.g. size of the entire body or parts thereof
• A61B 6/02 - Arrangements for diagnosis sequentially in different planesStereoscopic radiation diagnosis

Abstract

Method for reconstruction of a three-dimensional model of a body structure of a subject, said structure comprising a plurality of objects, wherein a database (21) of the structure is provided, the database comprising means to estimate, from a parameter of any object of the structure, another parameter for an object of the structure, a preliminary solution for a first object (L1) is modified to be brought in concordance with subject-specific data (23a, 23b) , a reconstruction of the second object (T12) is obtained based on the modified first object and on the database of structure (21) .

IPC Classes  ?

• G06T 17/10 - Volume description, e.g. cylinders, cubes or using CSG [Constructive Solid Geometry]

Abstract

The invention relates to a drilling tool control device comprising input (2) and output (3) transmission shafts which are coupleable to the tool and to each other with the aid of coupling means used for converting the rotational movement of the input shaft (2) into the output shaft (3) translation movement directed along the longitudinal axis thereof, wherein the coupling means comprise a gear means (1) for converting the rotational movement of the input shaft (2) into the output shaft (3) combined translation movement consisting of an axially directed uniform translation component and an axially directed oscillation component.

IPC Classes  ?

• B23Q 5/32 - Feeding working-spindles
• B23B 47/02 - DrivesGearings
• B23B 47/34 - Arrangements for removing chips out of the holes madeChip-breaking arrangements attached to the tool
• B23B 45/00 - Hand-held or like portable drilling machines, e.g. drill gunsEquipment therefor