초록 ▼

The arrangement of this invention concerns a surgical apparatus, in particular for ophthalmological use. In addition to a power beam it includes a beam of coherent visible light (29) which is transformed into at least one elementary beam (30) by means of a homogeneous light guide (21). The guide, wh

The arrangement of this invention concerns a surgical apparatus, in particular for ophthalmological use. In addition to a power beam it includes a beam of coherent visible light (29) which is transformed into at least one elementary beam (30) by means of a homogeneous light guide (21). The guide, which may be an optical fiber, is fixed to a rotating element (33) rotating about an axis (2). When the element rotates the elementary beam generates a luminous tubular beam intended to surround the power beam, the whole then being focussed by a lens to a point terminating a treatment cone with a predetermined vertex angle. The rotating element may include means for varying the diameter of the luminous tubular beam such as a transporter (39) bearing one end of the optical fiber and responding to the operation of a screw (45). The arrangement permits, on one hand to localize a point of treatment in the eye and, if necessary, modification of the vertex angle of the treatment cone.

대표청구항 ▼

A surgical treatment device, in particular for ophthalmological purposes comprising: at least one first light source emitting a power beam along a first optical axis and having a predetermined cross-section, a second light source emitting a visible light beam along a second optical axis, a rotating

A surgical treatment device, in particular for ophthalmological purposes comprising: at least one first light source emitting a power beam along a first optical axis and having a predetermined cross-section, a second light source emitting a visible light beam along a second optical axis, a rotating element rotating around said second optical axis, said element including means for transforming the beam issuing from said second source into at least one elementary beam turning around said second optical axis and arranged to form a luminous tubular beam intended to surround said power beam, means for combining said power beam and said luminous tubular beam along a third common optical axis, and a lens arranged in the path of the third optical axis so as to concentrate said power beam and said luminous tubular beam which surrounds it onto the focal point of the lens in accordance with a core having a predetermined vertex angle, wherein the transforming means forming part of said rotating element include at least one homogeneous light guide.