9 results about "Ocular operation" patented technology

This invention provides a video matching method for uncertainty-aware navigation in ophthalmic surgery, comprising: performing anatomical structure segmentation and neighboring frame fusion matching based on ophthalmic surgical video sequences to obtain a highly reliable neighboring frame matching library; performing motion analysis and frame pair selection and pairing based on a full-frame anatomical segmentation mask to obtain a globally selected set of difficult sample frame pairs; constructing a spatial lookup table to generate a pseudo-label training dataset; performing uncertainty-guided contrastive learning to obtain a final uncertainty-aware matching network; calculating the final filtered rotation angle using a reference frame and the current frame; and updating the incision position, capsulorhexis range, and intraocular lens implantation axis to obtain a real-time superimposed navigation visualization result. This invention can significantly reduce the algorithm training cost, enhance robustness in complex surgical environments, solve occlusion and deformation interference, effectively suppress error accumulation in semi-supervised learning, and improve the absolute accuracy of matching.

In certain embodiments, a system includes a first robotic arm and a controller. The first robotic arm includes a first end effector and a second end effector. The first end effector is configured to hold and manipulate a surgical package containing an item. The second end effector includes a sensor configured to transmit sensor data. The controller is coupled to the first end effector and the second end effector, and is configured to control the first end effector to present the surgical package to the sensor of the second end effector, command the second end effector to acquire the sensor data, determine, based on the sensor data, a type of item within the surgical package.

In certain embodiments, a system includes a first robotic arm and a controller. The first robotic arm includes a first end effector and a second end effector. The first end effector is configured to hold and manipulate a surgical package containing an item. The second end effector includes a sensor configured to transmit sensor data. The controller is coupled to the first end effector and the second end effector, and is configured to control the first end effector to present the surgical package to the sensor of the second end effector, command the second end effector to acquire the sensor data, determine, based on the sensor data, a type of item within the surgical package.

The present disclosure generally relates to microsurgical instruments having variable stiffness such as microsurgical instruments having variable stiffness for ophthalmic surgical procedures. In one embodiment, a surgical instrument includes a probe and a stiffener assembly. The stiffener assembly further includes a stiffener formed of a hollow tubular member substantially surrounding at least a portion of a length of the probe. Actuation of the stiffener along the length of the probe adjusts the stiffness of the probe, thus providing a user better control of the surgical instrument.

The invention relates to a pedal control method, system and device for ophthalmologic surgery and a medium, and belongs to the technical field of ophthalmologic surgery operation.The pedal control method comprises the steps that the identity of a doctor using a pedal is recognized, and preset preference parameters are loaded according to the identity of the doctor; reading real-time data of the operating microscope host; according to the real-time data, identifying a to-be-switched operation mode, and calculating the emergency degree of the to-be-switched operation mode in combination with the preference parameters; according to the preference parameters, the operation mode to be switched is distributed to a pedal habitual area; according to the emergency degree, the main control area of the pedal habitual area is calculated, a shape memory alloy unit of the main control area is controlled to protrude so as to protrude the operation mode operation area to be switched, and other operation mode areas are controlled to be distributed according to the remaining area in an equal proportion mode. The method has the advantages that a doctor can accurately operate the pedal, and time waste and misoperation caused by searching for an operation area are reduced.

Integrated system, attachable to a surgical microscope using magnets, capable of interpreting voice commands and processing images and videos in real time, to then execute functions on surgical instruments, such as optical and peripheral equipment usable in general surgery or, in particular, in ophthalmological surgeries, such as anterior and posterior segment, ocular plastics, orbit, oncological and other surgeries is provided. The system automates the task of the surgeon and assistants when variations are needed during surgery, such as: visualization variations in focus (autofocus) or field adjustment systems (autofield), or performance of the surgical equipment, such as digital interventions in the foot and / or touch controls, interventions in existing knobs and / or levers for lighting control, and the like. The system includes magnetic quick couplings, sensor parts such as microphone, microprocessing center for image and video processing, and actuating parts such as stepper motors, direct current motors with gearboxes, servomotors.

The application discloses a kind of ophthalmic surgery simulation training devices combined with virtual reality technology including operating platform and head-mounted display, the operating platform is simultaneously connected with support mechanism and virtual instrument simulation mechanism, and simulation sensing mechanism is arranged on support mechanism;Virtual instrument simulation mechanism includes first handle and second handle, and first handle and second handle are hinged to each other, one end of first handle is connected with first tool bit, and the same end of second handle is connected with second tool bit, first tool bit and second tool bit are mutually clamped, and the center position of first tool bit and second tool bit is respectively provided with first VR positioner, the bottom end outer wall of second tool bit is simultaneously fixedly connected with hook head and electric telescopic rod, and the output end of electric telescopic rod is connected with second VR positioner;The ophthalmic surgery simulation training device combined with virtual reality technology disclosed in the application has certain deformation diversity, can simulate a variety of instrument forms, and further optimizes the effect of simulation reality degree.

The application provides a kind of optic disc real-time continuous tracking method and device, it is related to medical image processing technical field.The application obtains the video sequence of ophthalmic surgery and pre-processes, then the video sequence after pre-processing is carried out multi-scale feature extraction and optic disc target detection, obtains optic disc detection target;The optic disc detection target is based on Kalman filtering prediction and appearance feature matching, introduces adaptive gate matching mechanism to carry out interframe target trajectory association, and combines appearance feature cache update mechanism and ReID cosine similarity retrieval to maintain target trajectory, outputs trajectory tracking result;Wherein, the trajectory tracking result includes optic disc position, confidence, trajectory identification and continuous tracking result of time stamp.The application improves small scale optic disc detection precision, enhances the occlusion recovery and trajectory continuity, in strong light reflection, low contrast and local occlusion and other complex surgical scene, realizes high-precision, high robustness, real-time optic disc continuous tracking.