33 results about "Ocular operation" patented technology

The present disclosure relates to a method for stabilizing the pH of an aqueous composition comprising a drug which is prone to oxidation, said method comprising the addition of an additive to prevent oxidation of the drug which is prone to oxidation. In particular, the present disclosure relates to a method for stabilizing the pH of an aqueous composition comprising a corticosteroid, said method comprising the addition of an additive to prevent oxidation of the corticosteroid. The present disclosure also relates to a composition comprising a corticosteroid and an additive to prevent oxidation of the corticosteroid.

The present disclosure relates to a method for stabilizing the pH of an aqueous composition comprising a drug which is prone to oxidation, said method comprising the addition of an additive to prevent oxidation of the drug which is prone to oxidation. In particular, the present disclosure relates to a method for stabilizing the pH of an aqueous composition comprising a corticosteroid, said method comprising the addition of an additive to prevent oxidation of the corticosteroid. The present disclosure also relates to a composition comprising a corticosteroid and an additive to prevent oxidation of the corticosteroid.

In certain embodiments, a surgical handpiece system includes a phacoemulsification tip, a fluid management system, an ultrasonic drive system, and a controller. The phacoemulsification tip is attached to a shaft. The fluid management system is configured to manage inflow and outflow of fluid from an ocular surgical site. The ultrasonic drive system is configured to generate torsional and longitudinal vibrations in the phacoemulsification tip. The controller is configured to analyze applied voltage and current to the ultrasonic drive system using Fast Fourier Transforms (FFTs), and tune applied frequencies of the torsional and longitudinal vibrations according to at least one resonant frequency.

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.

The application relates to the technical field of ophthalmic material preparation, and particularly discloses a kind of biopolymer membranes, a preparation method thereof and application in ophthalmic surgery.The biopolymer membrane comprises the following raw material components by weight: polyvinyl alcohol 5-10 parts;gelatin 3-6 parts;sodium lignosulfonate 10-20 parts;carboxymethyl cellulose 3-6 parts;natural extract 1-3 parts;water 200-300 parts.Studies have shown that the biopolymer membrane can promote the proliferation of human corneal epithelial cells;therefore, it has important application value when used in ophthalmic surgery for the treatment of ocular surface damage.

1. The name of the design product: ultrasonic emulsification instrument for ophthalmology. 2. The use of the design product: used in ophthalmic operating room, the operation equipment for cataract lens core fragmentation, perfusion and suction and anterior segment vitrectomy and electrocoagulation. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view 1.

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.

An ophthalmic surgical system for monitoring incision performance includes a laser device that delivers a laser beam having a laser setting energy toward a target to create an optical breakdown in the target, a camera, and a computer. A camera generates an image of an optical breakdown in the target. The computer instructs the laser device to create an optical breakdown in the target to produce a test pattern. The test pattern includes optical breakdown regions, where each region is formed with a different laser set energy. The computer identifies a lowest energy region having a substantially continuous optical breakdown from the image and designates a laser set energy for forming the identified region as a threshold energy.

Devices, methods, and systems related to a telemanipulation device with near, at, and trans-RCM motion for intraocular robotic surgical systems are provided. For example, there is a surgical tool telemanipulator device, including: a gripper adapted for user-controlled motion at, near, or through a remote center of motion (RCM) in a telemanipulator workspace; a plurality of rotational joints coupled to the gripper, each of the rotational joints having a motor, a cable, and an encoder; and at least one axial joint coupled to the gripper, the at least one axial joint having a motor, a cable, and an encoder. The plurality of rotational joints and the at least one axial joint may be arranged to provide encoded outputs related to (mimicking) a movement of the gripper at, near, or through the RCM within the telemanipulator workspace. Other related embodiments are disclosed.

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.

A handpiece for ocular surgery that includes a handle having at least inlets for irrigation and aspiration; a sleeve extending distally from a first end of the handle, wherein the sleeve comprises a bore extending a length of the sleeve along a central axis of the sleeve, and includes at least one port suitable to deliver irrigation from the irrigation inlet substantially distal from the first end of the handle; the aspiration being provided between an aspiration inlet and a distal bore port; a motor coupled with a second end of the handle and having a shaft; and an auger associated with the shaft, and extending at least partially through an interior portion of the handle between the second and the first ends and extending along the length of the sleeve, wherein a tip of the auger distal to the shaft is advanced by actuation of the motor.

Certain aspects of the present disclosure generally relate to ophthalmic surgery, and more particularly, to methods and apparatuses for controlling intraocular pressure (IOP) and administering ocular tamponades during or after ophthalmic surgery. An exemplary apparatus generally includes a proximal segment having a first inner diameter (ID), a first proximal end, and a first distal end. The apparatus further includes a distal segment having a second ID smaller than the first ID, a second proximal end, and a second distal end configured to be disposed inside a hub or a cannula transition of a valved cannula comprising the hub, a shaft, and the cannula transition between the hub and the shaft.

A sensor assembly for sensing fluid pressure in a surgical cassette is provided. The sensor assembly includes a tubing having a first portion and a second portion, a follower assembly operable to engage with a retaining ring of the surgical cassette coupled to the first portion, a collar on the second portion of the tubing operable to fit into a bearing of a pump head of a fluid pump assembly within a surgical console operable to receive the surgical cassette, and a biasing element between the follower assembly and the collar operable to apply a biasing force to the follower assembly to engage the follower with the surgical cassette. The follower assembly includes a follower coupled to a cup and a sensor component.

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.

A laser source for an ophthalmic surgical system includes a femtosecond seeder, an amplifier, a femtosecond pulse portion, a nanosecond pulse portion, and one or more switches. The femtosecond seeder generates femtosecond pulses. The amplifier amplifies laser pulses, which include the femtosecond pulses and nanosecond pulses. The amplifier amplifies the laser pulses by amplifying the femtosecond pulses and generating and amplifying the nanosecond pulses. The femtosecond pulse portion alters and outputs the femtosecond pulses, and the nanosecond pulse portion alters and outputs the nanosecond pulses. The switches receive the laser pulses from the amplifier, and direct the laser pulses to the femtosecond pulse portion or the nanosecond pulse portion. In other embodiments, the laser source includes a femtosecond seeder and a nanosecond seeder that generates the nanosecond pulses.

1. Name of the design product: Ophthalmic surgery assistance device (trolley). 2. Use of the design product: This design product is used for medical staff to perform ophthalmic surgeries and to carry an ophthalmic surgery system. By executing the surgical operation instructions of medical staff, ophthalmic surgeries are completed. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Perspective view.

Embodiments disclosed herein provide a surgical cassette including a housing having a base and a cover coupled to the base, wherein the cover and the base each at least partially define one or more channels. The housing further includes a plurality of ports formed in the base and in fluid communication with at least one of the one or more channels, a plurality of bores formed in the base and configured to receive one of a plurality of valve assemblies, and at least one pump landing formed in the base and configured to receive at least one pump assembly. A plurality of valve assemblies is disposed within the plurality of bores and configured to control fluid flow in the one or more channels of the housing. At least one pump assembly is disposed within the at least one pump landing and configured to provide a source of pressure or vacuum to the one or more channels of the housing.

A laser source for an ophthalmic surgical system includes a femtosecond seeder, an amplifier, a femtosecond pulse portion, a nanosecond pulse portion, and one or more switches. The femtosecond seeder generates femtosecond pulses. The amplifier amplifies laser pulses, which include the femtosecond pulses and nanosecond pulses. The amplifier amplifies the laser pulses by amplifying the femtosecond pulses and generating and amplifying the nanosecond pulses. The femtosecond pulse portion alters and outputs the femtosecond pulses, and the nanosecond pulse portion alters and outputs the nanosecond pulses. The switches receive the laser pulses from the amplifier, and direct the laser pulses to the femtosecond pulse portion or the nanosecond pulse portion. In other embodiments, the laser source includes a femtosecond seeder and a nanosecond seeder that generates the nanosecond pulses.

The invention relates to a bipolar electrocoagulation device for ophthalmology, which belongs to the technical field of medical instruments and comprises a machine body, the machine body is connected with bipolar electrocoagulation forceps through a connecting wire, a water spraying assembly is arranged on a forceps body of the bipolar electrocoagulation forceps, and normal saline is sprayed to forceps heads through the water spraying assembly to realize cooling; a supporting arm is arranged on the machine body, a sliding strip of the supporting arm is connected with a holding ball through a pull rope, and the pull rope can bear the gravity of the arm when the holding ball is held; a cleaning mechanism is arranged on one side of the supporting arm, a rotatable scraping plate and a fixed scraping block are arranged in a cleaning box of the cleaning mechanism, the scraping plate is attached to the outer wall of the tweezers head, and the scraping block cleans the inner side of the tweezers head when the tweezers head is taken out. Precise cooling of the tweezers head is achieved through the water spraying assembly, and tissue thermal damage is avoided; the cleaning mechanism can quickly clean the inner and outer sides of the forceps heads to reduce the operation interruption time; the supporting structure effectively relieves operation fatigue of doctors, safety, efficiency and operation comfort of the ophthalmologic operation are integrally improved, and the ophthalmologic operation support is suitable for various fine ophthalmologic operation scenes.

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.

To disclose shape-stabilized collagen scaffolds and methods of obtaining such stabilized scaffolds.SOLUTION: Stroma can be harvested, for example, from human or porcine corneal stroma. The stroma can be shaped during excision or in a separate step after excision. Following shaping (and preferably decellularization), the excised stroma portion is subject to pressure, force or vacuum to reduce fluid content and then irradiated or otherwise treated to induce crosslinking of collagen chains or fibrils 16. Various sources of energy can be employed to induce peptide bond crosslinking of collagen including, for example, ultraviolet (UV) radiation. The scaffolds can also be selectively densified or patterned. The invention is particularly useful in forming stable lenticules 10A for intracorneal implantation in additive ocular surgery.SELECTED DRAWING: Figure 1A

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.

Embodiments disclosed herein provide a surgical cassette including a housing having a base and a cover coupled to the base, wherein the cover and the base each at least partially define one or more channels. The housing further includes a plurality of ports formed in the base and in fluid communication with at least one of the one or more channels, a plurality of bores formed in the base and configured to receive one of a plurality of valve assemblies, and at least one pump landing formed in the base and configured to receive at least one pump assembly. A plurality of valve assemblies is disposed within the plurality of bores and configured to control fluid flow in the one or more channels of the housing. At least one pump assembly is disposed within the at least one pump landing and configured to provide a source of pressure or vacuum to the one or more channels of the housing.

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 present disclosure relates to a visualization system for surgery, and more particularly to an imaging and display support system for an ophthalmic visualization system. The optical systems described herein provide improved ergonomics for surgeons because such systems incorporate optical heads and corresponding displays on a single support arm to enable surgeons to directly and unobstructively view corresponding display screens placed in ergonomically advantageous locations for ophthalmic surgery. Even if the optical head of the system is moved or rotated during an ophthalmic procedure, such a system maintains the corresponding display screen in the aforementioned ergonomically advantageous position without the need for further adjustments by a surgeon or operator.

The invention discloses a novel collaborative double-RCM mechanism for ophthalmologic minimally invasive surgery. High-precision operation and control of surgical instruments are achieved through composite driving design. The mechanism comprises an integral movement mechanism, an independent movement mechanism, two RCM mechanisms and a rack. According to the overall movement mechanism, an involute thickening gear set is driven by a driving motor, and synchronous movement of the two RCM mechanisms is achieved. The independent movement mechanism is used for driving a single RCM mechanism to move independently by a single-action motor; the RCM mechanism drives a lead screw through a fixing motor and a connecting rod driving motor to control feeding and pitching of the double-parallelogram mechanism, and the piezoelectric ceramic driver drives the end effector to conduct linear feeding motion along the axis of the end effector. The three-degree-of-freedom rotation around the RCM point can be realized while the movement precision is ensured, and the operation safety and the space accessibility of an ophthalmologic operation are effectively improved.

1. The name of the product of this design: Ophthalmic surgical film. 2. Purpose of the product of this design: thin film used in ophthalmic surgery. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1. 5. This appearance design product is a thin product, and the left view, right view, top view and bottom view are omitted. 6. Other situations that need explanation: Part A of the main view is made of transparent material.

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.

The utility model provides an injector, an end effector and an ophthalmic surgical robot. The injector comprises a body, a holding part and a sleeve. The holding part is arranged outside the body in a sleeving manner; the end, extending out of the holding part, of the body penetrates through the sleeve, and the sleeve is connected with the holding part. By arranging the sleeve, the puncturing part of the injector can be effectively protected. The holding part is integrally formed, and is simple in structure and convenient to install. The puncture part can be replaced in time according to operation requirements.