326 results about "Ophthalmologic operation" patented technology

Solutions for perioperative intraocular application by continuous irrigation during ophthalmologic procedures are provided. These solutions include multiple agents that act to inhibit inflammation, inhibit pain, effect mydriasis (dilation of the pupil), and/or decrease intraocular pressure, wherein the multiple agents are selected to target multiple molecular targets to achieve multiple differing physiologic functions, and are included in dilute concentrations in a balanced salt solution carrier.

Adhesives formed by reacting an oxidized polysaccharide with a poly(hydroxylic) compound derivatized with acetoacetate groups in the presence of a base catalyst are disclosed. The use of the adhesives for medical and veterinary applications such as topical wound closure; and surgical procedures, such as intestinal anastomosis, vascular anastomosis, tissue repair, and ophthalmic procedures; and drug delivery are described. The adhesive may also be used for industrial and consumer applications.

A surge-flow regulator (36) for use with an ophthalmic surgical instrument (12) having an infusion line (20) adapted to irrigate a surgical site with fluid and an aspiration line (24) adapted to carry the fluid and particles of lenticular debris away from the surgical site. The surge-flow regulator (36) includes a flow limiting device (40) that is placed in fluid communication with the aspiration line (24) to control surge-flow of the aspirated fluid and lenticular debris through the aspiration line (24). The lenticular debris carried in the aspiration line (24) is processed into smaller particles before the fluid and debris are introduced to the flow limiting device (40).

A tissue adhesive formed by reacting an oxidized cationic polysaccharide containing aldehyde groups and amine groups with a multi-arm amine is described. The oxidized cationic polysaccharide-based polymer tissue adhesive may be useful for medical applications including wound closure, supplementing or replacing sutures or staples in internal surgical procedures such as intestinal anastomosis and vascular anastomosis, ophthalmic procedures, drug delivery, anti-adhesive applications and as a bulking agent to treat urinary incontinence. Additionally, due to the presence of the positively charged amine groups on the oxidized polysaccharide, the polymer tissue adhesive disclosed herein may promote wound healing and blood coagulation, and may possess antimicrobial properties.

A tissue adhesive formed by reacting an aminodextran containing primary amine groups with an oxidized dextran containing aldehyde groups is described. The dextran-based polymer tissue adhesive is particularly useful in medical applications where low swell and slow degradation are needed, for example sealing the dura, ophthalmic procedures, tissue repair, antiadhesive applications, drug delivery, and as a plug to seal a fistula or the punctum.

The invention relates to the technical field of laser ophthalmologic operations and provides a femtosecond laser system using for imaging and an operation at the same time. The system comprises a sample module, a femtosecond laser operation module and a secondary harmonic signal imaging module. The femtosecond laser operation module is used for the femtosecond laser cornea cutting operation and provided with a femtosecond laser oscillator. The laser light source generated by the femtosecond laser oscillator is irradiated to the sample of the sample module to generate a secondary harmonic signal, and the secondary harmonic signal imaging module collects the secondary harmonic signal to perform imaging so as to observe femtosecond laser cornea cutting effect. The femtosecond laser system is applicable to actual operations, the femtosecond laser cornea cutting effect can be observed clearly, and large modification of existing operation systems is not needed.

The invention discloses an injection robot. The injection robot comprises a fixing device and a first drive device. The fixing device is used for installing an injection instrument, and the injection instrument is provided with a piston rod. The first drive device can directly drive the piston rod to be movably arranged or drives the piston rod to be movably arranged through a first transmission device. The fixing device is movably arranged. According to the injection robot, the inclination angle of the fixing frame can be adjusted, the injection instrument can be rotated as well, ascending and descending can be achieved, the movement in the two horizontal directions can be achieved, the injection robot can meet the requirement for the movement in all directions during the ophthalmologic operation, and the injection robot can replace human hands to operate the injection instrument. Mechanical operation is adopted for injection, and hurt caused by hand trembling and the like due to the human physiology limitation can be avoided.

An irrigation and aspiration tubing system for use with surgical handpieces and irrigation fluid supplies has a first flexible irrigation tube for transporting irrigation fluid to the handpiece and a second flexible aspiration tube disposed within the first tube. The inner diameter of the first tube is selected to provide a cross-sectional area available for fluid flow in excess of the cross-sectional area of a standard surgical irrigation tubes. The system also includes at least one adaptor to allow the tubing to be attached to known surgical handpieces. Preferably, a second adaptor is also provided allowing attachment to sources of irrigating fluid and aspiration vacuum. The system finds particular utility with phacoemulsification instruments used for opththalmic surgery.

The invention discloses a microscope system used for an ophthalmologic operation. The system comprises a microimaging light path module, an illumination light path module, a control system and virtualreality equipment; the illumination light path module is used for providing illumination for the microscope system; an operation camera shooting module is connected with the inside of the microimaging light path module and is used for shooting an inspected eye image of a to-be-inspected object and transmitting the image to the control system; the control system receives the inspected eye image and provides the inspected eye image magnified by the microimaging light path module for virtual reality equipment. The microscope system used for the ophthalmologic operation can provide the magnifiedimage of the inspected eye for a surgeon so that the surgeon can get rid of the restriction of always looking towards an eyepiece tube, surgeons only need to wear the virtual reality equipment, and the system is beneficial for performing operations.

The invention provides tweezers for microsurgery, in particular opthalmological surgery, the tweezers comprising a one-piece working part (1) of U-shape, with the free ends (2a, 3a) of each branch (2, 3) being shaped into a point, the part being derived from a flat blank of thickness (e) constituting the dimension perpendicular to the plane (P) in which the branches (2, 3) move, and elements for manipulating the working part together forming a handle for gripping the tweezers, wherein each element is in the form of an elongate body (4, 5) presenting a convex outside surface (4a, 5a) and a substantially plane surface (4b, 5b) having a longitudinal groove (6, 7) hollowed out therein to house one of the branches (2, 3) of the working part (1), the end of each handle element facing towards the points being provided with centering means (8a, 8b, 9a, 9b) co-operating with a complementary centering member of the corresponding end of the other element.

The invention relates to a device for the laser radiation treatment of an eye, said device comprising: a laser radiation source (12) for producing laser radiation (14), means (20, 24, 40, 42, 44) for directing the laser radiation (14) onto the eye (10) for the purpose of ophthalmologic surgery on or in the eye, a control (50) for controlling the laser radiation (14) with regard to the eye (10) interms of space and time according to a treatment program (52) which is directed to a center (Z) of the eye, a camera (46) which records a feature of the eye (10), and an image-processing unit (50a) which derives a piece of information about the center (Z) of the eye (10) from the camera recording and inputs this information into the control (50), the control (50) controlling the laser radiation (14, 14') according to the treatment program and depending on the center of the eye derived in step e).

The invention discloses a full-automatic ophthalmic operation robot. The full-automatic ophthalmic operation robot comprises a fixing device and a first driving device, wherein the fixing device is used for mounting surgical forceps provided with a piston rod; the first driving device can directly drive the piston rod to be movably arranged or drive the piston rod to be movably arranged through a first transmission device; the fixing device is movably arranged. According to the full-automatic ophthalmic operation robot, the inclination angle of a fixing frame can be adjusted, the surgical forceps can be rotated and lifted and move in two horizontal directions, so that the requirement for movement in any direction in an ophthalmic operation can be met, and the robot can replace human hands to operate the surgical forceps. Injury caused by hand tremble and the like due to human physiological limitation can be avoided when the ophthalmic operation is performed mechanically.

The invention discloses an ophthalmologic operation intelligent control system, which comprises: a terminal operation platform for acquiring an operation scheme and generating the operation tracks andtime length information of intelligent robot arms according to the operation scheme; at least two intelligent robot arms respectively connected with the terminal operation platform and used for executing operation according to the moving tracks and the time length information of the intelligent robot arms; and microscopic image equipment connected with the terminal operation platform and used foracquiring the eyeball 3D structure optical image information of the operative eye of a patient in the operation process in real time, converting the eyeball 3D structure optical image information ofthe operative eye of the patient into eyeball 3D structure digital image information and sending the eyeball 3D structure digital image information to the terminal operation platform. According to theinvention, the operation of the intelligent robot arms is used for replacing a large amount of manual operation in the existing ophthalmologic operation process, so that manual judgment errors or bias and improper operation caused by inadequate experience of doctors can be avoided, and complications are reduced so as to substantially improve the accuracy and the operation quality of ophthalmologic operation.

The invention provides a head fixing pillow for ophthalmologic operation. The head fixing pillow comprises a bottom plate, a supporting plate, bracket devices and fixing devices. The bottom plate is provided with first supporting rods, first brackets, a first supporting block and first inclined rods, the supporting plate is provided with a first through hole and second brackets, each bracket device comprises first fixing rods, bending rods, a sponge cushion, second inclined rods, third brackets and first vertical rods, and each fixing device comprises a first transverse rod, a first pushing plate, an abutting block, a positioning block, a second pushing plate, a rotating shaft and a rotating portion; the first supporting rods are rectangular, the lower ends of the first supporting rods are fixedly connected with the upper surface of the bottom plate, the upper ends of the first supporting rods are fixedly connected with the lower surface of the supporting plate, the two first brackets are located on the left side and the right side respectively, and the other ends of the first brackets are fixedly connected with the lower surface of the supporting plate. The head fixing pillow can effectively fix the head of a patient when the patient conducts ophthalmologic operation, discomfortableness of the patient is reduced, and safety of the patient is guaranteed.

The invention provides an ophthalmologic operation training system and method based on movement capturing and mixed reality. According to the ophthalmologic operation training system based on movementcapturing and the mixed reality, front three-dimensional images of an animal eyeball specimen during an operation are collected in real time through a 3D camera microscope, an operation tool is positioned by arranging a pulse laser detector on the operation tool, the position of the operation tool is compared with a standard position through a central processor, position correcting information isgiven, guide information is given through the central processor according to operation processes, then, the front three-dimensional images collected by the 3D camera microscope are superposed with the position correcting information and the guide information, and display is carried out through a mixed reality display terminal. By the adoption of the ophthalmologic operation training system and method based on movement capturing and the mixed reality, the senses of reality and immediacy of ophthalmologic operation training can be improved, real-time guide effects in operation training are improved, ophthalmologic operation training periods are shortened, ophthalmologic operation training costs are reduced, and the training quality is improved.