222 results about "Ophthalmic surgery" patented technology

The devices and methods of the present invention provide a means to depress the sclera in such a fashion as to provide single point, multiple point, semicircular or 360° circumferential scleral tissue depression and light without the need for manual manipulation of the scleral depressor. The device comprises a shaped depressor for insertion between the sclera and the orbit of the eye and a holding means for positioning the depressor. In some embodiments the device can be integrated with a speculum. Use of the device eliminates the need to have a second person manipulate the depressor during the procedure and directly enables bimanual surgery.

Devices, methods, and systems related to a robot-assisted ophthalmic surgical platform for cataract surgery are provided. For example, there is a computer-controlled ophthalmic robotic surgical system including: a multimodal visualization subsystem; a tool exchange system; a plurality of robotic arms configured to receive and manipulate surgical tools; an artificial intelligence (Al) subsystem configured to produce outputs using the imaging data from the visualization subsystem, including: acquired data of the operative eye, extracted patient-specific metrics from the data for the operative eye; a trajectory planner configured to determine a trajectory path for a selected one of a plurality of surgical tools; and a control system configured to receive and execute the determined trajectory path on the operative eye, in which the trajectory path is modified in real-time based on data from one or more of the visualization subsystem and Al subsystem.

The bone rongeur comprises a cross rod, a shearing part is arranged at the left end of the cross rod, a handheld part is arranged at the right end of the cross rod, the shearing part comprises a sinking groove with an upward opening, a shearing head is arranged in the sinking groove, a collecting cavity is formed in the lower end face of the shearing head, a push plate is arranged on the left end face of the sinking groove, and the lower end of the push plate is hinged to the sinking groove; the handheld part comprises a front handle and a rear handle, when the front handle swings towards the rear handle, the shearing head can be driven to move leftwards, and when the front handle continuously swings towards the rear handle, the push plate can be driven to swing rightwards; according to the bone rongeur disclosed by the invention, a shearing part of an existing bone rongeur is improved, so that bite broken bones can be pushed backwards by the baffle plate to a position between the sharp teeth after each occlusion action is finished, and the shearing head moving backwards can drive the broken bones to synchronously move backwards through the sharp teeth inclined backwards to enter a collecting cavity; the bone rongeur can complete multiple times of bone rongeur operation after entering a wound once, and the bone rongeur efficiency is greatly improved.

Embodiments of the present disclosure generally relate to systems and methods for measuring intraocular pressure (IOP) during ophthalmic surgery. In some embodiments, a method for measuring IOP is provided. The method includes measuring fluid pressure in a fluid flow path of a handpiece device using a pressure sensor disposed therein to obtain a fluid pressure measurement, determining a sensor temperature measurement of the pressure sensor, determining a predicted sensor zero offset based on the sensor temperature measurement using a determined zero offset correlation function, and adjusting the fluid pressure measurement with the predicted sensor zero offset to obtain an adjusted fluid pressure measurement.

A docking device for intraocular surgery is provided having an upper edge portion having a second diameter, a lower edge portion having a first diameter and a bottom surface with at least one aperture, and a sidewall extending between the upper edge portion and the lower edge portion. An arm is also provided having a first portion coupled to the central portions of the upper and lower edge portions and a second portion configured for connection to a positioning arm. The lower edge portion also has a lower surface having a suitable profile configured to be secured to the sclera and / or conjunctiva of the surgical eye. Optionally, the lower surface of the upper edge portion is adapted and configured to releasably engage with the upper surface of the lower edge portion. Other variations include a split coupling that allows the suction surface to remain coupled to the surgical eye while removing other portions of the docking device.

1. The name of the design product: protective eyecup (1). 2. The use of the design product: the design product is used to protect the eyes after ophthalmic surgery. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view.

To provide a foot switch and surgical device for ophthalmic surgery that offer improved operability. [Solution] The oscillating part of the side switch rotates and oscillates left and right around a rotation axis extending in the front-rear direction, within a predetermined oscillation range between an inner standby position when the side switch is not operated and an outer operating position when the side switch is operated. The side switch biasing part biases the oscillating part toward the standby position within the oscillation range. When the oscillating part is in the standby position, the point of application of the force required to operate the push switch is located inside a virtual reference plane extending vertically upward from the rotation axis of the oscillating part. When the oscillating part begins to rotate and oscillate from the standby position toward the operating position, the height of the point of application gradually increases as it moves outward from the standby position.

1. The name of the design product: glass cutting head. 2. The use of the design product: used in vitreous cutting and removing in ophthalmic surgery. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The invention relates to the technical field of medical instruments, in particular to an eyelid fixing device for ophthalmologic surgery, which comprises a mask, mounting rods, piston cylinders, piston blocks, springs and the like, the mounting rods are connected to the front and rear sides of the mask, the piston cylinders are sleeved on the mounting rods, and the two piston blocks are slidably and hermetically connected in the piston cylinders; and a spring is connected between the two piston blocks in the same piston cylinder. The eyelids of a patient can be distracted and fixed by moving the distracting frame in the direction away from each other so as to provide a clear surgical field, normal saline can be sprayed to the eyes of the patient through the universal pipe to flush the eyes of the patient, the cleanliness of a surgical area is ensured, waste water generated by flushing the eyes can flow into the annular frame, and the surgical effect is improved. The wastewater flows into the collecting frame along the annular frame, so that the flowing of the wastewater is controlled, and the wastewater is collected.

According to certain embodiments, an ophthalmic surgical system for treating presbyopia comprises controllable components and a computer. The controllable components comprise a light source that generates a light beam and a scanner that directs a focal point of the light beam. The computer determines an ablation profile to remove tissue from a central region and a peripheral region of a cornea of a first eye of a pair of eyes. The ablation profile is designed to remove tissue from the central region to yield a protrusion to provide for near-vision, and to remove tissue from the peripheral region to correct to emmetropia.

To provide a useful or commercially beneficial option capable of at least partially coping with problems or defects of a conventional technique in an ophthalmic surgical instrument to be used during ophthalmic surgery.SOLUTION: In one embodiment, the present invention relates to a multipurpose ophthalmic blade for making a primary incision and a side port incision for entry into the anterior chamber of an eye. In another embodiment, the invention relates to an ophthalmic surgical instrument for delivering a fluid into and / or removing a fluid from an eye. The instrument includes a hollow shaft connectable to a blade portion adapted for making the side port incision in an eye for delivering or removing the fluid.SELECTED DRAWING: Figure 1

1. The name of the product of this design: Ophthalmic Scissors. 2. Purpose of the product of this design: medical device used in ophthalmic surgery in hospitals. 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.

In specific embodiments, provided is a material for preventing adhesion of membranes in an ophthalmic surgery for treatment of glaucoma or the like without using mitomycin-C or the like. Particularly provided is such material, which is easy to handle and has no risk of histolysis or infections. In a production method of a preferred embodiment, prepared are: aldehyde-modified dextran (first reactant) having weight-average molecular weight of 10,000-5,000,000 and introduced aldehyde group-per-anhydrous glucose unit (mol / AGU) of 0.4-0.7; and succinic anhydride-added poly-L-lysine (second reactant) having weight-average molecular weight of 1000-100,000 and having residual amino group ratio of 80-99%; then, they are mixed together so that aldehyde group-to-amino group molar ratio becomes 0.9-1.1 and are reacted in presence of water so that polymer concentration becomes 8-20%; and a hydrogel produced by the reaction, or a suspension before gelation, is freeze-dried to produce a porous sheet having a thickness of 0.1-0.8 mm.

The invention relates to the technical field of medical treatment, and discloses an auxiliary device for medical ophthalmologic operations, which comprises an operating table body, two auxiliary device bodies are rotatably arranged on the operating table body, and a tear collection assembly is arranged on each auxiliary device body. A tear collecting assembly is arranged on the auxiliary device body, a tear cleaning assembly is arranged at the position, below the tear collecting assembly, of the auxiliary device body, and a limiting assembly is arranged at the position, above the tear collecting assembly, of the auxiliary device body. The tear collecting seat can be tightly attached to the canthus while the eyelids of a patient are limited, so that the tear generated in the operation process of the patient is collected, and the secretion of the tear causes certain interference to the operation process, such as influence on the sight of a doctor and increase of the operation difficulty; the interference factors can be reduced, so that the operation process is smoother.

The invention relates to an optimization method for positioning measurement of an implanted crystalline lens after an ophthalmic operation, which comprises the following steps of: scanning an implanted astigmatism correction type artificial crystalline lens by using frequency sweep source optical coherence tomography (SS-OCT) to obtain image data containing a positioning mark, processing the image data by using a deep learning framework, and obtaining a positioning mark of the implanted astigmatism correction type artificial crystalline lens. Automatically identifying the astigmatism mark on the intraocular lens, and calculating the actual implantation axial position of the intraocular lens according to the identified astigmatism mark. The method has the advantages that axial position measurement can be completed without mydriasis, discomfort of a patient is reduced, dependence on operators is reduced, and measurement accuracy and efficiency are improved. The system comprises SS-OCT equipment and a deep learning processing module, and realizes automatic and non-invasive measurement of the implantation axial position of the artificial lens.

In specific embodiments, provided is a material for preventing adhesion of membranes in an ophthalmic surgery for treatment of glaucoma or the like without using mitomycin-C or the like. Particularly provided is such material, which is easy to handle and has no risk of histolysis or infections. In a production method of a preferred embodiment, prepared are: aldehyde-modified dextran (first reactant) having weight-average molecular weight of 10,000-5,000,000 and introduced aldehyde group-per-anhydrous glucose unit (mol / AGU) of 0.4-0.7; and succinic anhydride-added poly-L-lysine (second reactant) having weight-average molecular weight of 1000-100,000 and having residual amino group ratio of 80-99%; then, they are mixed together so that aldehyde group-to-amino group molar ratio becomes 0.9-1.1 and are reacted in presence of water so that polymer concentration becomes 8-20%; and a hydrogel produced by the reaction, or a suspension before gelation, is freeze-dried to produce a porous sheet having a thickness of 0.1-0.8 mm.

A surgical instrument for ophthalmic surgery includes a handle comprising a distal end and a probe comprising a proximal end coupled to the distal end of the handle. In some embodiments, a micro-structure pattern or a coating is formed on a surface of the probe. The surgical instrument further includes a driver in communication with the probe that is configured to cause vibration of the probe. The micro-structure pattern or coating and the vibration may be configured to reduce adhesion of the probe to a vitreous of an eye.

The utility model provides a sclera outer pressing device for ophthalmologic operation, which comprises a handle, a pressing part is arranged at the end part of the handle, the pressing part is provided with at least two elastic pressing strips, one ends of the elastic pressing strips are separated from each other at intervals, the other ends of the elastic pressing strips are integrated, and a sliding sleeve is sleeved on the periphery of the handle. The sliding sleeve axially slides along the handle to drive the elastic pressing strip to be opened and closed. During use, the jacking part can form multi-point jacking, contact points of the jacking device and eyeballs are increased, the problem that the jacking part is prone to sliding in the surgical operation process is solved, and surgical operation efficiency and safety are improved.

The invention discloses a laser positioning method and system for an ophthalmologic operation, medical equipment and a storage medium. The method comprises the following steps: acquiring a three-dimensional reconstruction model of a cornea; surgical parameters set for the cornea are obtained, and the surgical parameters comprise surgical position parameters and surgical planning parameters; based on the operation position parameter, positioning a corresponding operation position in the three-dimensional reconstruction model of the cornea; and generating a laser planning trajectory at the surgical position in the three-dimensional reconstruction model of the cornea based on the surgical planning parameters.

The magnetic double-cavity mesh bag ophthalmologic operation foreign matter forceps comprise a handle and a magnetic sheathing canal capable of penetrating through a 23G minimally invasive tunnel portal, a partition plate is horizontally connected to the middle of an inner cavity of the magnetic sheathing canal, and the partition plate is used for vertically dividing the inner cavity of the magnetic sheathing canal into a sheathing canal upper cavity and a sheathing canal lower cavity; meanwhile, clamping type material taking assemblies are installed on the front side of the inner cavity of the handle and in the lower cavity of the sheath tube, and wrapping type material taking assemblies are installed in the inner cavity of the handle and in the upper cavity of the sheath tube. According to the scheme, through three independent and flexibly switchable working states of magnetic adsorption, mechanical clamping and net bag wrapping, the 23G minimally invasive operation requirements are met, various intraocular foreign matters can be accurately, safely and efficiently taken out, the risk of secondary injury of tissues is greatly reduced, and the operation convenience and success rate are improved.

The application relates to the technical field of ophthalmic surgical instruments, in particular to an ophthalmic internal limiting membrane tampon, which can protectively and automatically rebound when the tampon is operated with excessive force during a'mechanical' tampon process, so as to prevent iatrogenic retinal pigment epithelial layer damage at the bottom of a macular hole. The device comprises a sleeve-shaped handle, a spring and a probe are arranged in the handle along the length direction of the handle; the probe comprises a probe main body and a probe base, and the two ends of the probe base are connected with the spring and the probe main body respectively; an outer thread is arranged on the outer side of the probe base, and a tensioning wheel is arranged on the handle; the outer thread is divided into at least three thread regions arranged along the length direction of the probe base, including a first thread region, a second thread region and a third thread region; the threads in the first thread region, the second thread region and the third thread region correspond to first threads, second threads and third threads respectively; and the diameters of the second threads are all larger than the diameters of the first threads and the third threads.

The utility model relates to medical mask technical field, concretely relates to a breathing mask for ophthalmic operation, including mask body, and setting in the oxygen pipe joint of mask body middle part, the upside of mask body is provided with nose bridge buckling part, the first pipe joint is passed through and is provided with in the root of nose bridge buckling part, the right side below of mask body is provided with second pipe joint, is provided with carbon dioxide collection pipe interface on the second pipe joint, the second pipe joint with carbon dioxide through pipe is set up between the outside end of first pipe joint and is communicated, the inside end of first pipe joint is provided with transnasal collection pipe, solve the breathing mask for ophthalmic operation in the prior art for the poor fit effect of patient's nose, easy to influence medical staff's operation, possibly exist the risk of being infected, also do not have the function of exhaling carbon dioxide collection, the function is relatively single, can not satisfy the problem of clinical use requirement.

The invention relates to a supporting device for an ophthalmologic operation, and belongs to the technical field of auxiliary tools for the ophthalmologic operation. Comprising a supporting frame arranged on the lower side of the treatment chair, and an electric push rod arranged on the supporting frame is connected with a supporting plate rotationally arranged at the end of the treatment chair; the head supporting mechanism is arranged on the supporting plate and comprises a mounting plate, a height adjusting assembly and a head fixing assembly; a second lead screw and a second threaded sleeve are matched with each other to drive a supporting part to support and position the head of a patient, the positioning strength of the supporting part to the head of the patient is adjusted by setting a preset air pressure value in the telescopic adjusting process, and the situation of excessive supporting or not-in-place supporting is avoided; when the second lead screw excessively moves, the sliding block can enter the annular groove from the strip-shaped groove, and the accident situation during clamping can be avoided; the problems that according to a traditional supporting device, it cannot be guaranteed that the comfort of a patient is considered while the head is stably fixed, and potential safety hazards exist in the clamping adjusting range are solved.

Provided are a trocar (2) for ophthalmic surgery and a trocar system provided with the trocar for ophthalmic surgery, whereby a surgical instrument having an outer shape larger than that of forceps can be reliably inserted into the eyeball regardless of the skill of the operator. A trocar (2) for ophthalmic surgery, in which a hollow insertion part (4) on the front end side is connected to a hollow main body part (6) on the rear end side, an internal space (8) is formed from a front end opening (4A) of the insertion part (4) to a rear end opening (6A) of the main body part, and at least the insertion part (4) is elastic, in a state in which the blade (20) is disposed in the internal space (8) so that the blade tip section (22) protrudes from the tip opening (4A), when viewed from the tip side of the blade tip section (22), the outer shape of the insertion section (4) is substantially shielded by the outer shape of the blade tip section (22), and when the blade tip section (22) is inserted into an eyeball, the insertion section (4) is also inserted into the eyeball along with the blade tip section (22). The insertion part (4) is positioned in the eyeball and the main body part (6) is positioned outside the eyeball by only pulling out the knife (20) from the rear end opening (6A), the blade tip part (22) can pass through the insertion part (4) by expanding the insertion part (4), and in the set state, when the surgical instrument (30) is inserted into the insertion part (4) from the rear end opening (6A), the insertion part (4) is expanded and the front end part of the surgical instrument (30) is inserted into the eyeball, and when the surgical instrument (30) is inserted into the main body part (6) from the rear end opening (6A), the blade tip part (22) can pass through the insertion part (4). When the surgical instrument (30) is pulled out from the rear end opening (6A), the expanded insertion part (4) returns to the original shape.

1. The name of the design product: the main body of a scalpel (ophthalmology). 2. The use of the design product: the product as a whole is a tool for ophthalmic surgery, and the part to be protected is the main body of the scalpel. 3. The design points of the design product: the shape drawn in solid lines. 4. The picture or photo that best indicates the design points: perspective view. 5. Other circumstances that need to be explained: in each view, the part drawn in solid lines is the part to be protected, and the part drawn in dashed lines is not the part to be protected.

The invention discloses a crystal capsular bag anchor for fixing the position of a crystal capsular bag during and after an operation. The crystal capsular bag anchor comprises a first anchor section and a second anchor section, the first anchor section is in an arc shape, the second anchor section is fixedly connected to the middle point of the inner side of the arc of the first anchor section, the curvature radius of the arc is 6 mm, the tangential direction of the middle point of the first anchor section is perpendicular to the central axis of the second anchor section, and the first anchor section and the second anchor section are integrally formed in an injection mode through medical-grade polymethyl methacrylate. The intraocular lens bag fixing device is simple in structure, good in fixing effect, excellent in biocompatibility, smooth in surface and convenient to operate, can effectively stabilize the lens bag in and after an operation, keeps the lens bag diaphragm to the maximum extent, reduces the risk of postoperative intraocular lens dislocation, and is suitable for fixing the lens bag in an ophthalmic operation.

The invention belongs to the technical field of medical auxiliary equipment, and discloses an eyelid distraction device for ophthalmologic surgery, which comprises a base, the base is connected with a threaded screw rod, a fixed box body and an air storage bag, the threaded screw rod is connected with a first adjusting handle and a sliding seat, the sliding seat is connected with a base block, and the base block is connected with a distraction piece and a linkage box body; the distraction piece is connected with a distraction air bag and a rack; the linkage box body is connected with a linkage shaft, the linkage shaft is connected with a reel and a gear, the fixed box body is connected with a rotating shaft and a linkage cylinder, the rotating shaft is connected with a worm gear and a second adjusting handle, the linkage cylinder is provided with worm teeth and an internal spline, and the linkage shaft is provided with an external spline. According to the eyelid distraction device, the first adjusting handle is rotated, so that the pair of distraction pieces are far away from each other to be used for distraction of eyelids, in the process of distraction of the eyelids, the eyelids abut against the distraction air bag, and accidental injuries and / or discomfort brought to a patient are / is reduced; by rotating a second adjusting handle, the opening piece moves front and back, so that the requirements of eyelids of different crowds on the opening device are met.