Abstract: The invention relates to a system for laser photocoagulation of the retina, comprising: a photocoagulation laser (1); an optical path (5) connecting the upstream photocoagulation laser (1) to a downstream laser outlet opening (6) intended to be positioned in front of the retina; an adaptive optical element (9) positioned in the optical path and configured to modify the wavefront of the laser beam being propagated in the optical path, in order to compensate for aberrations of the eye that occur as far as the retina; a position control loop (10) controlling a first actuator (14) positioned in the optical path downstream of the adaptive optical element in order to control the position of the laser outlet opening relative to the retina to be treated; and at least one imaging device (8) configured to obtain an image of the retina diverted from the optical path.

Abstract: The invention relates to a system for laser photocoagulation of the retina, comprising: a photocoagulation laser (1); an optical path (5) connecting the upstream photocoagulation laser (1) to a downstream laser outlet opening (6) intended to be positioned in front of the retina; an adaptive optical element (9) positioned in the optical path and configured to modify the wavefront of the laser beam being propagated in the optical path, in order to compensate for aberrations of the eye that occur as far as the retina; a position control loop (10) controlling a first actuator (14) positioned in the optical path downstream of the adaptive optical element in order to control the position of the laser outlet opening relative to the retina to be treated; and at least one imaging device (8) configured to obtain an image of the retina diverted from the optical path.

Abstract: The invention relates to a method for ocular ultrasound using an ultrasound probe comprising a plurality of transducer elements organised in at least n concentric rings forming n transducer rings (2, 2a, 2b, 2c, 2d, 2e), the transducer rings being grouped together in k groups of rings. Said method comprises the following steps: for each cycle (100, 110, 200, 210, 300, 310) of a plurality of cycles of k iterations using a different group of transducer rings and working through the groups of transducer rings: exciting a group of transducer rings in order to emit ultrasound waves; collecting n measuring signals from the n transducer rings; combining the n measuring signals in order to provide an ultrasound line representing the response of the n transducer rings when ultrasound waves are emitted; combining k ultrasound lines resulting from the most recent k iterations into a displayable line; and treating and displaying the displayable lines.

Abstract: A photocoagulation system is described herein that facilitates multi-spot laser treatment procedures inside the eye and close to the patient's retina. In one example embodiment, a modified endocular probe operates with a laser system to move the probe or a probe needle so as to project a multi-spot pattern on a patient's retina by controlling the rotation movement of the needle (and needle tip). In addition, the system facilitates maneuverability and angular deviation of the needle tip and synchronizes these different movements with the laser photocoagulator system so as to project the aiming beam and thereafter the laser treatment beam in the desired pattern location with the desired exposure time and power.

Abstract: The inventive probe comprises a tubular body (1, 2) that accommodates a transducer (11), which emits a focused incident ultrasonic wave toward structures to be examined and which receives the ultrasonic waves reflected by these structures. This transducer (11) is coupled to actuating means (4), comprises a piezoelectric assembly (15) capable of focusing the emitted beams and, adjacent to this assembly, comprises a spherical layer (20) made of a material that ensures a good transmission of the ultrasonic waves.

Abstract: The invention relates to a drive mechanism which can be used in a scanning device. The inventive mechanism comprises a device which converts a rotary motion produced by a motor member into a linear reciprocating motion. According to the invention, the aforementioned converter uses: a planetary rotating table (10) which is rotated by the output shaft (9) of the motor member (8), a planet pinion (15) which is pivot mounted to the table (10) and which meshes with a ring gear with a serrated bore (14) that is coaxial to the shaft (9) and solidly connected to the body of the motor member (8), and a drive member (19) which is borne by a support (18) that is solidly connected to the pinion (15). The mechanism can be used in the scanner of an ultrasound probe.

Abstract: The inventive probe comprises a tubular body (1, 2) that accommodates a transducer (11), which emits a focussed incident ultrasonic wave toward structures to be examined and which receives the ultrasonic waves reflected by these structures. This transducer (11) is coupled to actuating means (4), comprises a piezoelectric assembly (15) capable of focussing the emitted beams and, adjacent to this assembly, comprises a spherical layer (20) made of a material that ensures a good transmission of the ultrasonic waves.

Abstract: The scanning system of the invention includes a structure driven in rotation around a first axis, a structuremounted rotating on the structure around an axis parallel to the first axis, a structure for supporting an echographic probe mounted rotating on the structure around a third axis parallel to the axis, a coupling element between the structure and the structure and a coupling element between the support structure and the structure. This system being able to move the probe along a variable band arciform trajectory.