Abstract: A hollow needle for an ophthalmic surgical instrument for in-vivo fragmentation of organic lenses by means of ultrasound, comprising a connection region (2) formed on the proximal end (1) for coupling onto the instrument and a needle head (4) formed on the distal end (3) having an effective surface (5) for emitting ultrasound waves, wherein a suction channel (6) for suctioning lens fragments extends in the axial direction through the hollow needle, the opening (7) of which is delimited by the effective surface (5), characterized in that the suction channel in the needle head (4) is formed in a conical manner at least partially running in the direction of the proximal end (1), and in that sections (9) running over this region (1) in the axial direction are formed in the wall (10) of the suction channel.

Abstract: The present invention relates to a device for cutting and aspirating tissue from the human or animal body, in particular for use in vitrectomy, epiretinal membrane peeling, etc., with an outer tube (1), and with an inner tube (2) which is movable to and fro and concentrically in the outer tube (1) with slight play, wherein the outer tube (1) is closed at the free end and has, near the free end, at least one lateral opening (3) with at least one inner cutting edge (5), wherein the inner tube (2) is open at the free end and there has an outer cutting edge (4), and wherein the cutting edges cooperate in a cutting action during the movement of the inner tube (2) relative to the outer tube (1), advantageously characterized by a shaping measure in or on the outer tube (1) and/or in or on the inner tube (2), whereby the inner tube (2), at least in the area of the lateral opening (3), runs in the outer tube (1) with at least slight pretensioning.

Abstract: A hollow needle for an ophthalmic surgical instrument for in-vivo fragmentation of organic lenses by means of ultrasound, comprising a connection region (2) formed on the proximal end (1) for coupling onto the instrument and a needle head (4) formed on the distal end (3) having an effective surface (5) for emitting ultrasound waves, wherein a suction channel (6) for suctioning lens fragments extends in the axial direction through the hollow needle, the opening (7) of which is delimited by the effective surface (5), characterized in that the suction channel in the needle head (4) is formed in a conical manner at least partially running in the direction of the proximal end (1), and in that sections (9) running over this region (1) in the axial direction are formed in the wall (10) of the suction channel.

Abstract: The invention relates to a surgical instrument, in particular a vitrector, comprising an outer tube and an inner tube. Both tubes functionally interact. Said surgical instrument is characterized in that the outer tube and/or the inner tube is made from a light conducting material or is coated with said type of material or said type of material comprises a light conducting fiber, core or similar, and is used to conduct light from the proximal end to the or into the area of the distal end.

Abstract: A hollow needle for an instrument used in ocular surgery for the in-vivo disintegration of organic lenses via ultrasound, having a functional part (1) and a connector part (2), with the connector part (2) having handling portions(3) and serving to attach the tool in a removable fashion to a handle, wherein the properties of the handling portions (3) change upon connection of the tool to the handle, removal of the tool from the handle, and/or upon reprocessing of the tool. In addition, a method is disclosed for the production of a corresponding medical tool.

Abstract: The present invention relates to a device for cutting and aspirating tissue from the human or animal body, in particular for use in vitrectomy, epiretinal membrane peeling, etc., with an outer tube (1), and with an inner tube (2) which is movable to and fro and concentrically in the outer tube (1) with slight play, wherein the outer tube (1) is closed at the free end and has, near the free end, at least one lateral opening (3) with at least one inner cutting edge (5), wherein the inner tube (2) is open at the free end and there has an outer cutting edge (4), and wherein the cutting edges cooperate in a cutting action during the movement of the inner tube (2) relative to the outer tube (1), advantageously characterized by a shaping measure in or on the outer tube (1) and/or in or on the inner tube (2), whereby the inner tube (2), at least in the area of the lateral opening (3), runs in the outer tube (1) with at least slight pretensioning.

Abstract: A medical tool, in particular a hollow needle for an instrument used in ocular surgery for the in-vivo disintegration of organic lenses by means of ultrasound, having a functional part (1) and a connector part (2), with the connector part (2) having handling means (3) and serving to attach the tool in a removable fashion to a handle, is characterized in that the properties of the handling means (3) change upon connection of the tool to the handle, removal of the tool from the handle, and/or upon reprocessing of the tool. In addition, a method is disclosed for the production of a corresponding medical tool.

Abstract: The invention relates to a light source for coupling light into a hand-held medical device, especially a hand-held surgical device, preferably for using in ophthalmology. The light source is characterized by a hand lamp/flashlight provided with a lamp head comprising at least one lamp, and a fiber-optic light guide leading towards the hand-held device. The fiber-optic light guide can be connected to an adapter associated with the lamp head.

Abstract: The invention relates to a hand-held medical device for illumination, in particular for use in ophthalmology, comprising a housing used as a handle piece, a tube (1), which extends out of the housing and has an optical waveguide (2) running through it and a light outlet at the end of the tube, and a light source (3) integrated in the hand-held device, the hand-held medical device being characterized in that the light source (3) is an LED light source having a surface (4) that emits light and that the optical waveguide (2) directly adjoins the surface (4) that emits light.

Abstract: A light source for coupling light into a medical device, particularly a surgical handheld device, preferably for use in ophthalmology, comprising a lamp (1), a light guide (2) extending from the lamp (1), and a power supply (3) for the lamp (1), is characterized in that the lamp (1) is arranged in an adapter-like housing (4), which comprises a connection (5) for the power sup ply (3) and a connection (6) for the light guide (2).

Abstract: The invention relates to a light source for coupling light into a hand-held medical device (1), especially a hand-held surgical device, preferably for using in ophthalmology. Said light source is characterised by a hand lamp/flashlight (2) provided with a lamp head (4) comprising at least one lamp (5), and a fiber-optic light guide (7) leading towards the hand-held device. The fiber-optic light guide (7) can be connected to an adapter (6) associated with the lamp head (4).