Abstract: A computer-implemented method for determining the state of a system, which includes steps of: collecting data relating to a system, the data being noisy data comprising data of interest and noise; generating a signal to be analyzed from the collected data, the signal being a noisy signal comprising a signal of interest and noise; analyzing the regularity of the signal of interest by compensating the influence of the noise in the computation of the power of the difference between the integrated noisy signal and its trend; and determining the state of the system depending on the result of the analysis of the regularity of the signal of interest.

Abstract: A computer-implemented method for determining the state of a system, which includes steps of: collecting data relating to a system, the data being noisy data comprising data of interest and noise; generating a signal to be analyzed from the collected data, the signal being a noisy signal comprising a signal of interest and noise; analyzing the regularity of the signal of interest by compensating the influence of the noise in the computation of the power of the difference between the integrated noisy signal and its trend; and determining the state of the system depending on the result of the analysis of the regularity of the signal of interest.

Abstract: A vitreotomy device comprises a body extended by a cannula. The cannula has a closed distal end; it includes a window in its side wall close to said distal end. It houses a needle driven with reciprocating motion and capable of periodically closing said window. The device further comprises suction means connected to the needle, and a double-acting cylinder provided with a moving piston for controlling the movement of said needle. In said device, the needle is driven with reciprocating motion in translation in said cannula; said piston of the double-acting cylinder is secured directly to said needle; as a result, its movements enable the needle to be moved into a first position in which said needle closes said window, and a second position in which the needle leaves said window open. The device makes it possible to control very accurately the lengths of time for which the end of the cannula is open and closed.

Abstract: The injector for injecting a flexible intraocular implant comprises: a channel having a main portion of diameter D1, an open end portion of diameter D2 (with D2<D1), and a transition portion; a rigid piston movable along the channel to push the folded implant in the channel, and a substantially circularly symmetrical thrust part made of a material that is hydrophobic and elastically deformable, said thrust part having an outside diameter D3 not less than D1, said part being placed in said channel between the folded implant and the end of said piston without being mechanically connected to said piston. When the implant is pushed in the channel by the piston, said thrust part can deform elastically to penetrate in part into the end portion of the channel, thereby expelling the implant from the channel, and remaining jammed in said end portion of the channel when the piston is withdrawn.

Abstract: An ultrasound emission system comprising a substantially cylindrical body and, inside said body: a piezoelectric assembly for producing ultrasound along the axial direction of said body, a sonotrode assembly, a prestress ring, and further comprising electrical power supply and control means; said piezoelectric assembly being constituted by a stack of layers of piezoelectric material, each layer being provided with excitation electrodes and presenting thickness lying in the range 20 ?m to 100 ?m. The system, generally fitted with a cannula enabling the ultrasound treatment to be applied to a determined area, can itself be incorporated in such a manner as to make an ultrasound treatment machine serving in particular to perform phacoemulsification.

Abstract: A vitreotomy device comprises a body extended by a cannula. The cannula has a closed distal end; it includes a window in its side wall close to said distal end. It houses a needle driven with reciprocating motion and capable of periodically closing said window. The device further comprises suction means connected to the needle, and a double-acting cylinder provided with a moving piston for controlling the movement of said needle. In said device, the needle is driven with reciprocating motion in translation in said cannula; said piston of the double-acting cylinder is secured directly to said needle; as a result, its movements enable the needle to be moved into a first position in which said needle closes said window, and a second position in which the needle leaves said window open. The device makes it possible to control very accurately the lengths of time for which the end of the cannula is open and closed.

Abstract: The injector for injecting a flexible intraocular implant comprises: a channel (14) having a main portion (18, 30) of diameter D1, an open end portion (34) of diameter D2 (with D2<D1), and a transition portion (32); a rigid piston (16) movable along the channel to push the folded implant in the channel, and a substantially circularly symmetrical thrust part (40) made of a material that is hydrophobic and elastically deformable, said thrust part having an outside diameter D3 not less than D1, said part (40) being placed in said channel between the folded implant (1) and the end of said piston (16) without being mechanically connected to said piston. When the implant is pushed in the channel by the piston, said thrust part can deform elastically to penetrate in part into the end portion of the channel, thereby expelling the implant from the channel, and remaining jammed in said end portion of the channel when the piston is withdrawn.

Abstract: The present invention relates to a film comprising at least one layer (A) of a mixture of polyamide and polyethylene, and optionally a layer (B) of polyethylene, such that if the polyethylene, of the layer (A) is not a metallocene polyethylene then the layer (B) is obligatory and essentially consists of metallocene polyethylene. These films are used for the moulding of polyesters, for fumigation or for the manufacture of packaging.