184 results about "Ophthalmic surgery" patented technology

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.

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.

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.

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.

The invention discloses an intelligent head bracket for ophthalmologic operation. The intelligent head bracket comprises a mounting frame, a positioning rod, a head frame adapter, a bracket body, a head supporting tray, an air pressure type lifting assembly, an adjusting structure and a head fixing structure. Through cooperation of a separated expansion structure and a press-fit closed structure, intelligent distribution of air paths is achieved with the dead weight of the head of a patient as a control signal, the air paths in a pressed area are closed to form a firm bearing face, and the air paths in an unpressed neck area are smooth; by combining a multi-cavity independent fine adjustment structure, a multi-dimensional angle adjustment system and a mechanical locking type head fixing structure, personalized supporting of the head and the neck, fine hardness adjustment in an operation, multi-dimensional body position adjustment and reliable fixing are achieved. The head fixing device can adapt to patients with different head shapes / neck lengths without an electronic sensor, is high in supporting stability and good in comfort, does not interrupt the operation process during operation adjustment, and provides a reliable head fixing solution for high-precision ophthalmologic operations such as cataract and vitrectomy.

Embodiments of the present disclosure generally relate to a surgical probe. In certain embodiments, the surgical probe includes a handpiece configured to be held by a user, a tube, and one additional component disposed in the tube. The tube includes a proximal end coupled to the handpiece and a distal end opposite the proximal end that includes a distal tip. The distal tip is beveled and includes an end face at least partially defining a port for aspiration. The surgical probe further comprises at least one functional component (e.g., a soft tip, a diathermy tip, or an optical fiber) disposed in the tube.

The utility model provides an iris dilation ring, which relates to the technical field of ophthalmologic operation related equipment, and comprises a dilation ring body and a connecting band assembly, the dilation ring body is of an unclosed circular ring structure, and the dilation ring body is used for penetrating through an incision of an eyeball and being attached to an iris so as to assist in dilation of the iris; the connecting belt assembly is detachably connected with the dilation ring body, and the connecting belt assembly is arranged on the outer side of the incision so as to prevent the dilation ring body from falling off from the iris. The technical problem that in the prior art, when an eye operation is carried out, eye tissue is prone to being damaged is solved.

The present disclosure generally relates to fluid control valves for delivering and / or aspirating fluid during ophthalmic surgeries and procedures. In one embodiment, a valve assembly includes a first portion configured to fluidly couple with a gas supply line and a second portion configured to fluidly couple with a liquid supply line and an infusion line via two or more through channels. The first portion and the second portion are partitioned or separated from each other by a filter having a hydrophobic membrane configured to prevent the flow of liquids therethrough while allowing the free flow of gas. Accordingly, an infusion liquid may flow through the second portion while gases may be simultaneously aspirated through the first portion, without any liquids travelling into the gas supply line. The gas supply line may thus be utilized to vent or purge gases from the infusion line before or during performance of surgical procedures.

The invention relates to the technical field of medical apparatus and instruments, and discloses a multi-dimensional adjustable oxygen supply fixing device and an oxygen supply fixing method.The multi-dimensional adjustable oxygen supply fixing device comprises a mounting frame, an adjusting mechanism and a breathing framework, the adjusting mechanism is arranged on the mounting frame and comprises a first supporting arm, a second supporting arm and a third supporting arm, and the first supporting arm, the second supporting arm and the third supporting arm are arranged on the mounting frame; the near end of the first support arm is connected with the mounting frame, the far end of the first support arm is rotatably connected to the near end of the second support arm, and the far end of the second support arm is rotatably connected to the near end of the third support arm; an oxygen supply mask is arranged in the breathing frame, and the breathing frame is hung at the far end of the third supporting arm through a fixing belt. By means of the design, the adjusting mechanism can provide part of supporting force, the gravity of the breathing frame is prevented from completely acting on the head of the pet, and therefore the problem that when the oxygen supply mask is fixed to the head of the pet, local oppression is prone to being caused to eyes is solved.

The invention relates to an ophthalmic surgical system (2) for treating an eye, comprising a console (1) with a cassette holder (3) and a cassette (6). The cassette (6) has at least one first surface design element (8). The cassette holder (3) has at least one second surface design element (20) and is configured to hold the cassette (6) in a predetermined position within the cassette holder (3) when the first surface design element (8) and the second surface design element (20) are positioned in an interlocking manner. The first surface design element (8) and / or the second surface design element (20) have at least one change in cross-sectional area in a direction transverse to a surface (9, 21) on which the respective surface design element (8, 20) is arranged.Only if the surface design elements (8, 20) are designed to fit each other, can the first surface design element (8) and the second surface design element (20) be positioned interlocking at all.

The invention relates to an intelligent injection and suction control system for ophthalmologic operation and a using method thereof, and belongs to the technical field of medical instruments, the intelligent injection and suction control system comprises an intelligent host system, and a main control circuit board, a main suction pump and a high-speed servo compensation perfusion pump are integrated in the intelligent host system; a main suction channel and a compensation infusion channel are arranged in a needle handle of the double-channel intelligent needle in parallel, and the tail ends of the main suction channel and the compensation infusion channel are connected with a suction needle tube and a compensation infusion tube respectively. And the image processing system comprises an image acquisition unit and an image processing unit, and the image processing unit is internally provided with a multi-modal sensing fusion module and a feedforward prediction control module. According to the method, the anterior chamber collapse and the surge effect can be actively prevented, the conversion from passive response to predictive intervention is realized, and the intra-operative anterior chamber stability and the operation safety are effectively improved.

An ophthalmic surgical system for monitoring incision performance includes a laser device, a camera, and a computer. laser device delivers a laser beam with a laser setting energy towards a target to create optical breakdowns in the target. The camera generates images of the optical breakdowns in the target. The computer instructs the laser device to create the optical breakdowns in the target to yield a test pattern. The test pattern comprises regions of optical breakdowns, where each region was created with a different laser setting energy. From the images, the computer identifies a lowest energy region with substantially continuous optical breakdowns, and designates the laser setting energy used to create the identified region as a threshold energy.