Abstract: Injector for use in ophthalmic applications, having a gas supply tube and a liquid supply tube, both supply tubes being interconnected at a junction member that is in fluid communication with an outflow cannula, characterised in that a selective flow member is placed in the gas supply tube, near the junction member, allowing gases to pass through and blocking the passage of liquid.

Abstract: Pressure control unit for an ophthalmic irrigation/aspiration system having a chamber with an upper part for storing air and a lower part for storing a surgical fluid to be irrigated or aspirated, the pressure control unit including a negative pressure source, a positive pressure source and an adjustable valve arrangement. The adjustable valve arrangement includes a vacuum port connected to the negative pressure source and a pressure port connected to the positive pressure source. The adjustable valve arrangement also includes a main port in controllable fluid communication with the vacuum port and the pressure port and the main port is connected to an upper part of the chamber.

Abstract: An active irrigation system for controlling delivery of irrigation fluid to a surgical site includes a chamber having at least one fluid port for introducing an irrigation fluid from a fluid source into the chamber and delivering the irrigation fluid to a surgical site. A variable pressure source is provided in fluid communication with the chamber and is configured to pressurize the chamber. A pressure sensor also in fluid communication with the chamber monitors the pressure within the chamber and a controller adjusts the variable pressure source to maintain the desired irrigation pressure within the chamber.

Abstract: A system for positioning a conduit within an ophthalmic surgical field comprises a conduit (12), a first fixation point (14) and a second fixation point (15). The first fixation point (14) comprises base structure (16) arranged to be secured in a fixed location, and a grip arrangement (18) configured to hold the conduit (12). The grip arrangement (18) is mounted on the base structure (16) by way of a ball joint structure (20, 22), with the ball joint structure (20, 22) being arranged to allow pivoting and rotational movement of the grip arrangement (18) with respect to the base structure (16). The second fixation point (15) is positioned remote from the first fixation point (14) at a predefined distance therefrom. A method for positioning a conduit with an ophthalmic surgical field is also described.

Abstract: A fluid level indicator (50) for indicating the fluid level in an ophthalmic irrigation and/or aspiration system comprises a chamber (10) configured for holding a surgical fluid (F). The chamber (10) comprises at least one fluid port (72; 74) and a pressure port (71) for connection to a pressure source (20). A channel (140) extends from the chamber (10). The fluid level indicator (50) comprises a float (160) having a float body (162) disposed within the chamber (10) and a stem (164) extending from the float body (160) into the channel (10). The float body (160) is configured to move with the level of fluid within the chamber (10), thereby moving the stem (164) along the channel (140) extending from the chamber (10). The position of the stem (164) within the channel (40) indicates the fluid level within the chamber (10).

Abstract: System (20) with a safety lock (21), the safety lock (21) being configured to at least partially prevent use of a surgical instrument (22). A foot switch assembly (1) is operably configured to control the surgical instrument (22), and has multiple switches (4; 10; 14; 15; 16). A memory (26) is present for storing a predetermined switch sequence associated with the switches (4; 10; 14; 15; 16) of the foot switch assembly (1), as well as a control unit (25) configured to determine whether a series of input switch actuations from the foot switch assembly (1) corresponds to the predetermined switch sequence, and if so, deactivating the safety lock (21) in response to the series of input switch actuations corresponding to the predetermined switch sequence. The invention also relates to various embodiments of a foot switch assembly for controlling a surgical instrument.

Abstract: A light source for providing a light beam to an ophthalmic instrument with a predetermined spectral content, with a first light source device (1) for providing a first beam of light (9a) along a first optical axis and with a radiation opening angle (?). A mirror body (6) has a mirror aperture (6a) aligned with the first optical axis for allowing the first beam of light (9a) to partially pass, and a mirror surface (6b) adjacent to the mirror aperture (6a) for directing radiation from the first beam of light (9a) back to the layer of wavelength conversion material (1a). Also, a second light source device (7) may be present for providing a second beam of light (9a) along a second optical axis, and a dichroic mirror (3) for combining the first beam of light (9a) and the second beam of light (9b) into a combined beam of light (9c).

Abstract: An actuation system for an ophthalmic cutting tool is disclosed. The system comprises a chamber (44) separated by a diaphragm (46) into a first compartment (48) a second compartment (50). A first port (49) is provided in fluid communication with the first compartment (48) and a first conduit (38) connected to the ophthalmic cutting tool and a second port (51) is provided in fluid communication with the second compartment (50) and a second conduit (40) connected to the ophthalmic cutting tool. The diaphragm (46) is movably mounted within the chamber (44) and is configured for alternate movement between a first position and a second position to alternately increase and decrease the volume of the first and second compartments. A drive system (54) is provided to drive oscillation of a diaphragm actuator (52) for moving the diaphragm between the first and second positions.

Abstract: A multi-lumen luer connector (1) comprises a first part (2) having an outer connector (2a) and an inner connector (2b) disposed within the first outer connector (2a). A second part (3) comprises a second outer connector (3a) and a second inner connector (3b) disposed within the second outer connector (3a). One of the first and second outer connectors 2a, 3a) is configured as a male part comprising a first tapered body with a bore extending therethrough and the other of the first and second outer connectors (2a, 3a) is configured as a female part with a first conical bore adapted to receive the first tapered body and sealingly engage therewith to define an outer lumen (4). The first and second inner connectors are configured in a similar manner to define an inner lumen (5) disposed within the outer lumen (4).

Abstract: A tool for cryosurgery for handling tissue is disclosed, which is particularly suited for ophthalmic applications. The tool for cryosurgery (1) comprises a tubular body (2), a container (3) positioned within the tubular body (2) for holding cryogenic fluid and a treatment tip (4) connected to a distal end (2a) of the tubular body (2). A capillary (5) for transporting cryogenic fluid from the container (3) to the treatment tip (4) is also provided. The treatment tip (4) comprises a closed off end tip (6) and a shaft (7) of thermally insulating material having an inner lumen (8) with a diameter (dl) which is larger than an outer diameter (do) of the capillary (5), the shaft (7) being sealingly coupled to the closed off end tip (6).

Abstract: Pressure control unit for an ophthalmic irrigation/aspiration system having a chamber with an upper part for storing air and a lower part for storing a surgical fluid to be irrigated or aspirated, the pressure control unit including a negative pressure source, a positive pressure source and an adjustable valve arrangement. The adjustable valve arrangement includes a vacuum port connected to the negative pressure source and a pressure port connected to the positive pressure source. The adjustable valve arrangement also includes a main port in controllable fluid communication with the vacuum port and the pressure port and the main port is connected to an upper part of the chamber.

Abstract: A system for positioning a conduit within an ophthalmic surgical field comprises a conduit (12), a first fixation point (14) and a second fixation point (15). The first fixation point (14) comprises base structure (16) arranged to be secured in a fixed location, and a grip arrangement (18) configured to hold the conduit (12). The grip arrangement (18) is mounted on the base structure (16) by way of a ball joint structure (20, 22), with the ball joint structure (20, 22) being arranged to allow pivoting and rotational movement of the grip arrangement (18) with respect to the base structure (16). The second fixation point (15) is positioned remote from the first fixation point (14) at a predefined distance therefrom. A method for positioning a conduit with an ophthalmic surgical field is also described.

Abstract: An active irrigation system for controlling delivery of irrigation fluid to a surgical site includes a chamber having at least one fluid port for introducing an irrigation fluid from a fluid source into the chamber and delivering the irrigation fluid to a surgical site. A variable pressure source is provided in fluid communication with the chamber and is configured to pressurize the chamber. A pressure sensor also in fluid communication with the chamber monitors the pressure within the chamber and a controller adjusts the variable pressure source to maintain the desired irrigation pressure within the chamber.

Abstract: A fluid level indicator (50) for indicating the fluid level in an ophthalmic irrigation and/or aspiration system comprises a chamber (10) configured for holding a surgical fluid (F). The chamber (10) comprises at least one fluid port (72; 74) and a pressure port (71) for connection to a pressure source (20). A channel (140) extends from the chamber (10). The fluid level indicator (50) comprises a float (160) having a float body (162) disposed within the chamber (10) and a stem (164) extending from the float body (160) into the channel (10). The float body (160) is configured to move with the level of fluid within the chamber (10), thereby moving the stem (164) along the channel (140) extending from the chamber (10). The position of the stem (164) within the channel (40) indicates the fluid level within the chamber (10).

Abstract: An electrosurgical apparatus comprising an electrosurgical instrument for delivering RF energy and/or microwave frequency energy into biological tissue, an interference cable for conveying radiofrequency (RF) and/or microwave frequency energy between an electrosurgical generator and the electrosurgical instrument, wherein a sterile barrier sheath surrounds a connection interface between the instrument and interface cable. The sterile barrier sheath and instrument may be a sterilisable unit suitable for repeated use.

Abstract: A forceps comprising a first jaw and a second jaw arranged along a longitudinal axis of the forceps for relative movement toward and away from one another. The first and second forceps jaws have respective first and second jaw surfaces facing each other. The first and second jaw surfaces have a serrated surface texture at least on a distal part thereof. A serration direction of the serrated surface texture is at an angle which is non-perpendicular to the longitudinal axis, resulting in additional profile structure elements at a tip portion surface, allowing to handle and manipulate fine tissue materials such as membranes in an eye.

Abstract: An ophthalmic scraper device comprising a handle body (2) at a first end (4) of the ophthalmic scraper device (1) and a rod shaped body (6) at a second end (8) of the ophthalmic scraper device (1) projecting from the handle body (2). The rod shaped body (6) has a flexible tip portion (10) distal to the handle body (2). The tip portion (10) comprises an abrasive patterned surface texture (12). The rod shaped body (6), the flexible tip portion (10) and the abrasive patterned surface texture (12) are made of a single flexible material.

Abstract: An assembly for protecting and cleaning a medical instrument having an operational part and a hand grip part. The assembly has a protection element with cooperating retention parts for fixing the hand grip of the medical instrument in the protection element. A cavity is formed by a wall for protecting the operational part of the medical instrument. The assembly further has a cleaning assist element with a tubular shape and being fixable to the wall of the protection element.

Abstract: A technique for presenting text information to service users with enhanced visual effects so that the text information makes a strong impression on the users. A video creation server includes an acquisition section configured to acquire material data including one or both of text data and a still image, and a control section configured to acquire a script code editable by a user and to create moving-image data having the material data embedded into each frame of previously defined moving-image data such that the material data moves within the previously defined moving-image data in accordance with the script code.

Abstract: A sliding information device for placement and sliding on an even and flat supporting surface wherein the device comprises a baseplate with a flat and even bottom surface and an upright element, fastened to its top surface by means of a base that enables elastic bending of the element back and forth from an unloaded rest position A to a loaded oblique position B and a method for manufacturing it comprising the cutting of a series of segments from an elastically bendable substrate.