234 results about "Eye surgery" patented technology

An apparatus for controlling or metering a viscoelastic material for eye surgery. Such an apparatus may generally comprise a housing having a cylinder; a plunger having at least a portion operable to move within the cylinder; a reservoir; an inlet check; and an outlet check valve fluidly coupled to the reservoir. The inlet check valve may be configured to allow the viscoelastic material into the reservoir at a priming pressure. An actuator can be coupled to the plunger and configured to move the plunger in a first direction to increase the pressure in the reservoir to a delivery pressure that is sufficient to close the inlet check valve and open the outlet check valve. A return spring can be configured to move the plunger in a second direction to decrease the pressure in the reservoir.

The invention provides a dynamic simulation model construction algorithm for implanting a crystalline lens MPL in the ophthalmology department, and relates to the technical field of dynamic simulation models.The dynamic simulation model construction algorithm comprises the steps that microscopic dynamic data of the crystalline lens in the eye are collected in real time through a nanoscale microsensor array, and the crystalline lens micro-deformation degree (CTMD) and the interaction force (CTIS) of the crystalline lens and an intraocular structure are calculated; the collected microscopic data is transmitted to a central processing unit and is efficiently processed by a high-frequency data processing module; calculating the three-dimensional deformation and focal length change of the crystalline lens in real time based on a multi-physics field coupling algorithm in combination with a physics model; a highly dynamic simulation model is generated through the central processing unit to simulate the performance of the implanted MPL and optimize the surgical planning and design. According to the method, the precision and adaptability of the dynamic simulation model of the implanted crystalline lens MPL in the ophthalmology department can be effectively improved, and more accurate simulation and support are provided for ophthalmology operations.

The invention belongs to the technical field of medical instruments, and particularly relates to a thread hooking device for extraocular surgery, which comprises a handle, a support plate fixedly mounted on the handle, a connector fixedly mounted at one end of the support plate, a limiting block fixedly mounted on the connector, a sliding groove formed in the connector and a pressure block arranged on the connector. A through groove is formed in the supporting plate, a movable groove is formed in the handle, a winding wheel is arranged in the movable groove, the through groove communicates with the movable groove, and the winding wheel is fixedly connected with a traction rope. According to the thread hooking device for the extraocular surgery, due to the arrangement of the limiting hole and the pressing block, a surgical suture can be well limited, the surgical efficiency is improved, the winding wheel is rotated to drive the pressing block to move, and when the winding wheel does not wind the traction rope any more, the reset spring is reset; the connecting block is pushed to drive the pressure applying block to synchronously move to limit and clamp the suture, so that the stability of the surgical suture is improved, the surgical suture is prevented from accidentally falling off, and the surgical efficiency is improved.

The invention belongs to the technical field of medical instruments, particularly relates to a microscope imaging device for an ophthalmologic operation, and aims to overcome the defects that in the prior art, when an operation is carried out on a patient, an eye operation area of the patient cannot be marked, and when the operation is carried out on the patient, eyelids of the patient are inconvenient to open. A vertical electric guide rail is installed on the base, a transverse electric guide rail is installed on the vertical electric guide rail, an arc-shaped electric guide rail is installed on the transverse electric guide rail, and an installation rod is fixedly installed on the arc-shaped electric guide rail. According to the eyelid distraction device, eyelids of a patient can be conveniently distraction, meanwhile, eyeball affected parts of the patient can be marked, so that when the patient is subjected to an operation, the accuracy of the operation can be effectively improved, and good convenience can be provided for a doctor.

A computer program is provided, comprising an artificial intelligence-based model, wherein the computer program is designed to, when executed by a computer, induce the computer, by means of the model, to determine a treatment plan for refractive eye surgery based on information characterizing a patient and information characterizing a refractive error in one of the patient's eyes that is to be corrected by means of refractive eye surgery.

A surgical instrument system (1) for ophthalmic surgery in the interior of an eye, comprising: an OCT device (3) comprising an interferometer; an optical fiber (7) coupled to the OCT device (3) and in which a probe arm of the interferometer extends; a handheld device comprising: - a handpiece (9), - a tube (13) extending from the handpiece (9) and having a distal end portion (15), the distal end portion (15) having a longitudinal axis (14), a distal portion of the optical fiber (7) being disposed within the tube (13); - a beam emitter coupled to a front end (29) of the optical fiber (7) and configured to emit an OCT measuring beam (33) in an emission direction (41) of the beam emitter; and - an actuator configured to change an emission direction (41) of the OCT measuring beam (33) relative to the front end (21) of the distal end region (15); characterized in that a first tangent (T1) to the longitudinal axis (14) at a proximal end (30) of the distal end region (15), and a second tangent (T2) to the longitudinal axis (14) at the front end (21) of the distal end region (15) forms a bending angle (α) of the distal end region (15) which lies in a range between 60° and 100°.

The invention belongs to the technical field of intelligent medical decision support systems, and discloses an intelligent medical decision model training method based on ophthalmologic surgery, which comprises the following steps: acquiring original ophthalmologic data of a patient and carrying out preliminary data processing to obtain a patient ophthalmologic data set; image data in the ophthalmology data set of the patient is analyzed, eye feature vectors are detected and extracted, eye conditions of the patient are preliminarily classified, and eye diseases are marked; extracting clinical feature vectors of non-image data in the ophthalmology data set of the patient, and performing multi-source data fusion on the clinical feature vectors and the eye feature vectors to obtain influence feature vectors; taking the influence feature vector as input, and training to obtain an ophthalmologic operation intelligent medical decision model; the prediction result of the intelligent medical decision-making model for the ophthalmologic operation is explained through an explainable tool, a model explanation and operation evaluation report is generated, the diagnosis accuracy is improved, and the explanation and personalized treatment capacity of the model are enhanced.

A system includes an actuator, one or more items of diagnostic equipment configured to perform ophthalmic measurement, and one or more items of treatment equipment configured to facilitate performance of an ophthalmic treatment with respect to an eye of a patient. A controller is coupled to the actuator and is configured to cause the actuator to transfer the one or more items of diagnostic equipment and the one or more items of treatment equipment into and out of a region in front of an eye of the patient. The ophthalmic treatment may be a LASIK or SMILE treatment using refractive error and / or eye geometry measured using the diagnostic equipment.

A system includes an actuator, one or more items of diagnostic equipment configured to perform ophthalmic measurement, and one or more items of treatment equipment configured to facilitate performance of an ophthalmic treatment with respect to an eye of a patient. A controller is coupled to the actuator and is configured to cause the actuator to transfer the one or more items of diagnostic equipment and the one or more items of treatment equipment into and out of a region in front of an eye of the patient. The ophthalmic treatment may be a LASIK or SMILE treatment using refractive error and / or eye geometry measured using the diagnostic equipment.

A method for enhancing digital images during an eye surgery includes producing warm white light via a lighting source by blocking blue and green wavelengths of light using an excitation filter. The method includes illuminating a pupil and iris of the eye with the warm white light during the eye surgery and collecting digital images of target anatomy using a digital camera. Within the images, a processor digitally isolates a pupil pixel region from an iris pixel region and adjusts a characteristic of constituent pixels of one of the regions. The method may be performed by executing instructions from a computer-readable storage medium to enhance a red reflex at predetermined stages of an eye surgery.

The invention provides a bandage mirror which comprises a lens body, a flexible part and a shielding part, one end of the flexible part is connected with the periphery of the lens body, and the other end of the flexible part is connected with the shielding part; the lens body is provided with an outer convex face and an inner concave face, and the face, away from the outer convex face, of the shielding piece is used for shielding eyelashes on the lower eyelid. The eyelashes can be prevented from stimulating the upper eyelids and the lower eyelids in the recovery period when the eyes of a patient are closed after an eye operation.

The invention relates to the technical field of ophthalmologic operations, and provides an intelligent head position recognition and correction system in ophthalmologic operations, comprising: an intelligent pillow which is designed according to human head engineering, is provided with a self-adaptive adjustment module, and is used for performing automatic fine adjustment according to head contours and body types of different patients to ensure that the heads of the patients are stably supported; the infrared eyeball tracker is installed on a mechanical arm beside an operating bed, the infrared eyeball tracker is composed of a high-sensitivity infrared emitter, a wide-view-angle receiver and a matched optical filter, and the infrared eyeball tracker can stably work in a complex light environment and accurately capture infrared signals reflected by eyeballs. Through the high-precision nine-axis inertial measurement unit integrated in the intelligent pillow, various fine actions such as translation, rotation and inclination of the head can be monitored accurately in all directions, and the measurement precision reaches the sub-millimeter level and the sub-degree level. Therefore, the system can timely and accurately obtain the head position change information, and a reliable basis is provided for subsequent judgment and processing.

An apparatus for eye surgery may comprise a nozzle having a delivery lumen, an implant bay coupled to the nozzle, an implant disposed in the implant bay, and an actuator coupled to the implant bay. The actuator may comprise a housing, a plunger disposed within the housing, a bore through the plunger, a first coupling proximate to a first end of the plunger, and a second coupling integral to the housing. The bore may be fluidly coupled to the implant bay. The first coupling may be configured to receive a hydraulic driver and fluidly couple a working fluid in the hydraulic driver to the bore. A portion of the plunger may be slidingly disposed through the second coupling. In some embodiments, the second coupling may be configured to retain a drive coupling of the hydraulic driver in a fixed position relative to the housing.

The invention relates to an ophthalmic surgical instrument comprising a handling unit, a surgical module provided on the handling unit, and a shaft at least partially surrounding the surgical module, wherein the surgical module and the shaft are movable relative to each other. The handling unit further comprises a guide element arranged at a distal end of the handling unit. The handling unit includes an actuating unit with a plurality of actuating arms and a drive unit for moving the shaft back and forth relative to the guide element through the central bore of the guide element, wherein the drive unit comprises an annular element on a proximal side of the guide element, the distal ends of the actuating arms being pivotably connected to the annular element in order to move the annular element toward the guide element.

A method for ocular simulated camera assisted robot training is provided. In some implementations, the method includes initializing, by a processor, a robotics assembly. The method further includes connecting, by the processor, to one or more computing devices. The method further includes operating, by the processor, the robotics assembly. The method further includes simulating, by the processor, an eye movement of a human or animal. The method further includes operating, by the processor, a laser to perform a determined exercise on an eye of the robotics assembly. Related systems, methods, and articles of manufacture are also described.

A simulated eye surgical model with a bubble management system that facilitates training of ophthalmic surgical procedures, such as laser-based glaucoma treatment. The simulated eye could also be used for marketing, startup procedures, go / no-go tests, etc. The eye model has a lower core, a corneal dome positioned above the lower core, and an anterior chamber under the corneal dome defining a floor. A bubble reservoir under the anterior chamber defined by the lower core has a capture tube opening to the anterior chamber. A bubble chamber open to the capture tube rises up above the capture tube lower end to an upper portion sealed off from the anterior chamber. The eye model may be rotated 360° about a horizontal axis to transfer bubbles from the anterior chamber to the bubble chamber. An alternative flow-through eye model provides active flushing of bubbles and particulate.

A cutting tool, wherein the device comprises a first member having a first, distal portion and a second, proximal end portion, wherein a rotating member is mounted substantially at the distal end portion, wherein the rotating member is biased to rotate, and wherein one or more cutting members or blades may be mounted on the rotating member. The cutting tool may be for use in surgery, preferably eye surgery. Methods of use of the cutting tool and kits comprising the cutting tool are also described.

A tracking system for quantifying retinal traction on a retina of a patient eye includes an indicator device, a stereo camera, and an electronic control unit (ECU). The stereo camera collects and outputs stereo image data. The ECU, which is in communication with the indicator device, executes a method by receiving the stereo image data from the stereo camera during an ophthalmic procedure and thereafter assigning tracking points as coinciding pixels within stereo image pairs. The ECU also automatically performs a digital image correlation (DIC) process using the stereo image pairs to ascertain relative motion of the tracking points, and associates relative motion of the tracking points with the retinal traction using a traction map. A numeric traction quotient is generated that is indicative of magnitude of retinal traction. The ECU executes a control action using the indicator device based on the numeric traction quotient.

The embodiment of the invention provides an eyeball operation positioning method and system based on an RCM mechanism and electronic equipment, and belongs to the technical field of ophthalmologic operation instrument control. The method comprises the steps that trocar identification information on an eyeball is collected in real time through an image collecting device, and at least one trocar is fixed to the sclera of the eyeball; determining an initial position coordinate of an RCM point on the eyeball and initial attitude information of the RCM point according to the at least one piece of trocar identification information; adjusting the position of an RCM mechanism according to the initial position coordinate of the RCM point, and adjusting the posture of the RCM mechanism according to the initial posture information of the RCM point, so that the axis direction of an injection needle connected to the tail end of the RCM mechanism covers the center point of the target operation area. The method not only can realize high-precision operation positioning, but also can adapt to the dynamic change of eyeballs in the operation process, ensures that an operation instrument is always aligned with a target area, and greatly improves the safety and success rate of the operation.

An ophthalmic surgical instrument includes a handpiece configured to be held by a user, and a working tip coupled to a distal end of the handpiece that includes a proximal opening configured to be disposed outside an eye, a distal opening configured to be disposed inside the eye and expose a tool to the inside of the eye, and a channel between the openings. When the distal opening is disposed inside the eye and the proximal opening is uncovered the proximal opening permits the channel to be in fluid communication with ambient atmosphere, the channel is configured to enable passive aspiration of fluid from inside the eye, such that the fluid flows from the distal to the proximal opening and into the ambient atmosphere. The tool comprises forceps, scissors, a delamination spatula, a pick, an illumination fiber, or a laser fiber.

The utility model discloses a teaching tool for eyeball surgery, which comprises a supporting column and an eyeball model, the front end of the supporting column is provided with a regulation and control auxiliary mechanism, the regulation and control auxiliary mechanism comprises a sliding rail fixedly connected to the front end of the supporting column, the outer side of the sliding rail is connected with a sliding frame in a sliding mode, one end of the sliding rail is provided with a limiting hole, and the other end of the sliding rail is connected with the eyeball model. And the front end of the sliding frame is fixedly connected with a mounting block. According to the teaching tool for the eyeball surgery, the threaded rod is rotated to move in the adjusting frame, so that the threaded rod drives the adjusting and controlling plate to move through the connecting block, the limiting block is separated from the limiting hole, the sliding frame is pulled to slide along the sliding rail, and the purpose of conveniently adjusting the height of an eyeball model is achieved; therefore, the eyeball model is adapted to different positions and is matched with the actual exposure height and the operation view angle of the eyeball in a real operation, and operation changes caused by differences of eye socket depth and eyelid tightness of a patient in clinic are restored.

Pharmaceutical compositions, methods for treating various issues of the eyes, and methods of preparing such compositions are described. These pharmaceutical compositions may be for treating glaucoma, in preparation of eye surgery, during eye surgery, various post-op care (e.g., after cataract surgery, laser eye surgery, and the like), for treating dry eyes, and / or for promoting eyelash growth. These pharmaceutical compositions may comprise such active ingredients (APIs) as: timolol, latanoprost, brimonidine tartrate, dorzolamide, moxifloxacin HCl, dexamethasone PO4, phenylephrine HCl, lidocaine HCl, ketorolac tromethamine, bromfenac, prednisolone PO4, gatifloxacin, amniotic cytokine extract (ACE), prostaglandin E2 (PGE2), and combinations thereof.

An eye surgery apparatus includes an eye surgery tool, an imaging system, a robotic arm, and a processor. The eye surgery tool has a distal end for insertion into an eye of a patient through an incision in the eye. The imaging system is configured to acquire images showing the incision and at least part of the eye surgery tool. The robotic arm is coupled with the eye surgery tool, which is configured to move the distal end of the eye surgery tool inside the eye according to one or more commands issued during an eye surgery. The processor is configured to, during the eye surgery (i) receive the images from the imaging system, (ii) monitor the commands issued to the robotic arm, (iii) detect, by analyzing the images, that a monitored command is expected to enlarge the incision, and (iv) initiate responsive action with respect to the detected command.

A computer program is provided that includes an artificial intelligence-based model, wherein the computer program is designed to, when implemented by a computer, use the model to enable the computer to determine information characterizing a treatment plan for said refractive eye surgery based on information characterizing a patient and information characterizing the visual impairment of the patient's eye to be corrected by said refractive eye surgery.

In some examples, a laser-based ophthalmological surgical system (hereinafter “system”) includes a therapeutic radiation source configured to emit therapeutic radiation with a first wavelength. The system may also include a probe radiation source configured to emit probe radiation with a second wavelength different than the first wavelength. The system may also include one or more optical elements configured to direct the therapeutic radiation and the probe radiation into an eye of a patient and to collect reflected probe radiation from the eye of the patient. The reflected probe radiation may be indicative of an amount of therapeutic radiation exposure of the eye of the patient. The system may also include a photodetector configured to receive the reflected probe radiation from the one or more optical elements and to generate a photocurrent indicative of the amount of therapeutic radiation exposure of the eye of the patient.

The invention discloses an eyelid traction device for eye surgery, and belongs to the technical field of eyelid surgery traction equipment, the eyelid traction device comprises a brain back base plate, a multidirectional adjusting device for adjusting the traction equipment is arranged on the brain back base plate, a traction adjusting handle structure for clamping rotation is arranged on the multidirectional adjusting device, and an eyelid wound pulling device is arranged on the traction adjusting handle structure. The eyelid traction device for the eye surgery aims at reducing damage to the face caused by an overlarge eyelid surgical incision and ensuring that the surgical field is exposed to the maximum degree, the eyelid traction device for the eye surgery is provided, the position of the traction incision of traction equipment can be adjusted while the eyelid surgical incision is dragged, the traction angle and position can be changed according to needs, and the operation efficiency is improved. The frictional resistance between the traction equipment and the incision skin is ensured, and the surgical field is fully exposed.

Cataract surgery is in recent years more and more augmented and supported by the application of laser cuts in the eye tissue. Such laser systems are separate units from the phacoemulsification system units that are usually used for cataract extraction. The laser systems require the patient to be positioned under the laser unit and then being moved under the surgical microscope next to the phacoemulsification unit. The here described invention relates to systems combining several aspects of the laser system and the phacoemulsification system. In particular, this invention relates to combining at least some parts of the control system and the housing for both systems and thereby minimizing and optimizing setup time, operating room footprint, patient flow and cost. Furthermore the here disclosed invention relates to integrating the laser system under the surgical microscope and thereby significantly reducing the surgery setup and complexity.

In certain embodiments, an ophthalmic system and computer-implemented method for automatically initializing an image guided surgery are described. The initialization includes monitoring a scene using multiple images captured by a first imaging device. An eye of a user is detected within a first image of the multiple images. In response to detecting the eye of the user, a registration procedure is initiated with the first image and a reference image of the eye of the user to generate a set of transformation information. A set of overlay content is generated based on the set of transformation information. The set of overlay content includes a transformed first image or a transformed reference image. Overlay content is presented onto the scene via a second imaging device.

In some embodiments, an ophthalmic surgical feedback system includes a laser device configured to emit light to a location on eye tissue of a patient and generate biomechanics information for the location based on the light. The ophthalmic surgical feedback system also includes a memory having executable instructions and a processor in communication with the laser device and the memory. The processor is configured to execute the instructions to determine strength of the eye tissue at the location based on the biomechanics information. The processor is further configured to execute the instructions to generate feedback related to utilization of a surgical instrument at the location based on the determined strength.