17 results about "Ophthalmic microscope" patented technology

A digital ocular system for use with image sensors and an ophthalmic microscope includes a housing that connects to the microscope and defines a housing cavity, a first lens having a first optical axis, and a second lens having a second optical axis parallel to the first optical axis. A first micro-display is positioned within the housing cavity to present a first image from the image sensors. The first micro-display has a first center axis arranged at a predetermined angle with respect to the first optical axis. A second micro-display presents a second image from the image sensors. The second micro-display includes a second center axis arranged at the predetermined angle with respect to the second optical axis, such that the first and second micro-displays are horizontally decentered relative to the first and second optical axes, respectively.

In certain embodiments, an ophthalmic surgical system for viewing an eye includes an ophthalmic microscope and a laser device. The ophthalmic microscope receives light reflected or scattered backwards from within the vitreous of the eye in order to provide an image of an object within the vitreous. The ophthalmic microscope includes a slit illumination source (which includes a light source and an optical element), a spectral filter, and oculars. The slit illumination source illuminates the eye with light, where the light source provides the light, and the optical element directs the light into the eye. The spectral filter filters out red spectral components of the light. The oculars receive the light from the eye in order to provide the image of the object. The laser device generates a laser beam to direct towards the object within the eye.

In certain embodiments, an ophthalmic laser system includes a laser device, an ophthalmic microscope, a z-direction sensor, and a controller. The laser device directs a laser beam towards a target within an eye. The ophthalmic microscope receives light from a focal point within the eye to provide an image of an object at the focal point. The z-direction sensor determines the z-position corresponding to the focal point of the ophthalmic microscope. The controller determines a position Z0, the z-position where the focal point of the ophthalmic microscope is at the retina of the eye; determines a position Z, the z-position where the focal point of the ophthalmic microscope is at the target within the eye; calculates a target-to-retina distance ΔZ according to a difference between the position Z and the position Z0; and calculates a radiant exposure He at the retina according to the target-to-retina distance ΔZ.

This disclosure provides an ophthalmic observation system for visualizing the surface and internal structure of a medical patient's eye. A particular embodiment provides an ophthalmic observation system including an ophthalmic microscope, a gonioscopy device configured to relay images of the inner periphery of the patient's eye to the ophthalmic microscope, and a robotic arm configured to hold the gonioscopy device in a predetermined position relative to the ophthalmic microscope and the patient's eye, and to relay images of the inner periphery of the patient's eye to the ophthalmic microscope for the user to view.

An ophthalmic surgical system (100) includes an ophthalmic microscope (102) including a first camera (204a) and a second camera (204b). A controller (214) coupled to the first camera and the second camera receives a current pair of images including a current representations of a retina (300) of a patient; obtains a current three- dimensional representation of the retina from the current pair of images; determines deformation of the retina by evaluating the current three-dimensional representation relative to a reference representation of the retina; determines (414) stress on the retina according to the deformation; and outputs (418) guidance according to the stress. Stress may be determined using FEM and may use velocity and acceleration of the deformation. Guidance may include a graphical representation of the stress or a vector along which force should be exerted. Deformation may be detected (412) using a mesh (312) projected (406) onto the retina.

The ophthalmologic microscope has an illumination device for projecting light onto an eye to be observed and a microscope device with a camera to view the eye. The illumination device generates pulsed light. The light is pulsed at least at twice the frame rate of the camera to reduce flicker. The illumination device uses an array of micro-mirrors as spatial light modulator, and the mirrors are controlled for a balanced deflection over the frame cycles, which allows to increase the service life of the microscope.

The utility model discloses an ophthalmic microscope lens cleaner which comprises a barrel body which is divided into an upper containing groove and a lower containing groove by a partition plate, the lower end of the barrel body can be detachably sleeved to one end of a lens barrel of an ophthalmic microscope lens, and the outer wall of the lens barrel is clamped by the inner wall of the lower containing groove; the rotating disc is movably arranged in the upper accommodating groove; the connecting disc is movably arranged in the lower containing groove, the connecting disc and the rotating disc are connected through a rotating shaft, and the rotating shaft longitudinally penetrates through the partition plate and is used for allowing the rotating disc to rotate to drive the connecting disc to rotate in the circumferential direction and allowing the rotating disc and the connecting disc to jointly move in the longitudinal direction; and the cleaning disc is detachably mounted on the lower end surface of the connecting disc and is used for cleaning the mirror surface of the convex lens of the ophthalmic microscope lens. According to the technical scheme, cleaning is convenient, and on the premise that operation continuity is not affected, instant cleaning of the microscope lens can be achieved, so that continuous and clear imaging of the lens is guaranteed, and more reliable guarantee is provided for ophthalmologic operations.

An ophthalmic surgical system includes an ophthalmic microscope including a first camera and a second camera. A controller coupled to the first camera and the second camera receives a current pair of images including a current representations of a retina of a patient; obtains a current three-dimensional representation of the retina from the current pair of images; determines deformation of the retina by evaluating the current three-dimensional representation relative to a reference representation of the retina; determines stress on the retina according to the deformation; and outputs guidance according to the stress. Stress may be determined using FEM and may use velocity and acceleration of the deformation. Guidance may include a graphical representation of the stress or a vector along which force should be exerted. Deformation may be detected using a mesh projected onto the retina.

An ophthalmic microscope comprises a first assembly with a base (1) and a stage (2), a second assembly with a pivot arm (3) and a microscope device (8), and a third assembly with a pivot arm (4) and a light source (9). The assemblies are pivotable to each other at a hinge (30). An electric control motor (38a, 38b, 38c) and a position sensor (46a, 46b) are incorporated in the hinge (30). A brake controller (50) of the microscope is adapted to interrupt the manual mutual displacement of the assemblies in response to a signal from the position sensor (46a, 46b) in order to assist a user in correctly aligning the assemblies.

A digital ocular system for use with image sensors and an ophthalmic microscope includes a housing that connects to the microscope and defines a housing cavity, a first lens having a first optical axis, and a second lens having a second optical axis parallel to the first optical axis. A first micro-display is positioned within the housing cavity to present a first image from the image sensors. The first micro-display has a first center axis arranged at a predetermined angle with respect to the first optical axis. A second micro-display presents a second image from the image sensors. The second micro-display includes a second center axis arranged at the predetermined angle with respect to the second optical axis, such that the first and second micro-displays are horizontally decentered relative to the first and second optical axes, respectively.

The present invention relates to a single and / or dual laser delivery system attached to an existing ophthalmic operating microscope, comprising of a single and / or dual wavelength laser unit [1]; and a delivery system [5]. The laser unit [1] comprises of a green laser module 532 nm [3] and a yellow laser module 577 nm [4] along with an aiming beam [7] 635 nm. The delivery system comprises of a right-angle prism [5A]: X and Y Galvo assembly [5B] and a focusing lens assembly [5C]. The laser unit passes through a fiber optic cable [6] gets reflected using the right angle prism, gets deflected by the Galvo assembly, enters the focusing lens assembly and gets reflected by a folding mirror [5D] and focused on human eye capsule. The system converges and focuses the laser wavelengths in line with the aiming beam to create a circular pattern to accomplish a pre-measured Capsulorhexis.

An ophthalmic observation system for visualizing structures on and in an eye of a medical patient includes: an ophthalmic microscope; an anterior chamber gonoscopy device configured to work with an ophthalmic microscope to provide an image of an interior of a patient's eye; and a robotic arm configured to hold the anterior chamber gonoscopy device in position relative to the ophthalmic microscope and the patient's eye to provide an image of the interior of the eye.

The utility model discloses an ophthalmologic operation head frame, which comprises a face support cover, which comprises a cover body extending from the neck of a patient to the mouth and a nose wing part extending from the cover body; the bottom supports are arranged on the bottom edges of the two sides of the cover body; the shoulder fixing piece is rotatably connected to the tail end of the bottom support, and the shoulder fixing piece is arranged below the shoulders of the patient in a cushioned mode. The utility model has the advantages of simple structure, reasonable design and convenience in use, and avoids stuffiness or suffocation of a patient in the operation process. The nose wing part can play a role in bearing and buffering, so that the ophthalmology microscope is prevented from touching the head frame, and an operation area and the microscope are prevented from being damaged.

The invention relates to an ophthalmic microscope, in particular a slit-lamp microscope, comprising a microscope unit (1) with a slit illumination (2), a control unit (3) for controlling the microscope and an input device (4) for entering control commands by a user. The input device (4) comprises a first rotatable wheel and a second rotatable wheel arranged on the same rotation axis in series. Said arrangement of wheels allows a comfortable control of the microscope by a user.

The invention relates to an ophthalmic microscope, in particular a slit-lamp microscope, comprising a microscope unit, a control unit for controlling the microscope, and an input device for entering control commands by a user. Said input device comprises a joystick (10) with a joystick handle and a rotatable wheel (19) arranged below said joystick handle (15). Both the joystick (10) and the rotatable wheel (19) are adapted to enter control commands. The rotatable wheel 19 allows the user to select menu options or setting values in a comfortable way.

The utility model discloses an ophthalmological microscope lens wiping pen, which comprises a cylinder body, the inside of the cylinder body is provided with a containing cavity for containing cleaning agent, the lower end of the containing cavity is closed, the upper end of the containing cavity is open, and the lower end face of the cylinder body is concaved inwards to form an inserting groove; the spray head assembly is detachably assembled at the upper end of the cylinder body and is used for spraying the cleaning agent in the accommodating cavity outwards; the cleaning accessory comprises a connecting part and a cleaning part which are connected, the upper end of the cleaning part is detachably inserted into the inserting groove, and the cleaning part is used for cleaning the mirror surface of the ophthalmic microscope lens. According to the technical scheme, cleaning agent spraying and multifunctional wiping are integrated, the cleaning part is flexibly selected according to pollution types, efficient cleaning is completed, the combined operation of spraying and wiping can be achieved without additional tools, the cleaning steps are simplified, the convenience and efficiency of cleaning the microscope lens in the operation process are greatly improved, and the operation cost is reduced. Quick operation of medical staff is facilitated, and surgical risks are reduced.