330 results about "Ophthalmologic operation" patented technology

System and method for identifying a component, such as an optical probe or pneumatic scissors, of an ophthalmic surgical device. A component of a surgical device includes an identifier, such as a RFID tag. Data from the RFID tag is transmitted to a RFID reader in the device. A controller determines whether the component corresponding to the received data is operable with the surgical device based on criteria, such as whether the received data is an authorized code that matches data stored in memory or whether the received data solves or satisfies an algorithm. The authorized codes are selected from a larger set of available codes. The controller enables or disables the operation of the device with the component based on whether the criteria is satisfied, the number of uses of the component, an amount of time that has passed since the component has been used, or a geographic location. The RFID data can also be used to calibrate the surgical device for use with the particular component and for inventory and monitoring purposes.

An ophthalmic surgical cassette for removably receiving in a cassette receiving mechanism of an ophthalmic surgical system. The system includes first and second plunger valves. The cassette includes a body having a rear surface, an irrigation inlet for receiving irrigation fluid from a source, a first irrigation outlet for providing irrigation fluid to a first ophthalmic microsurgical instrument for use in an anterior segment ophthalmic surgical procedure, a first manifold fluidly coupling the irrigation inlet with the first irrigation outlet, a second irrigation outlet for providing irrigation fluid to a second ophthalmic microsurgical instrument for use in a posterior segment ophthalmic surgical procedure, and a second manifold fluidly coupling the irrigation inlet with the second irrigation outlet. The surgical cassette greatly simplifies a combined anterior segment and posterior segment ophthalmic surgical procedure by eliminating the need for separate anterior segment and posterior segment cassettes for the combined procedure.

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.

The disclosure herein provides ophthalmic surgical systems, methods, and devices. In one embodiment, a surgical apparatus for use by a surgeon during a surgical procedure comprises one or more sealed sterilized surgical packs configured to be disposed of after a single or a limited number of surgical procedures, the one or more sealed sterilized surgical packs comprising: a sterile surgical instrument; and a sterile surgical tray comprising a top surface configured to be part of a sterile field of the surgical procedure, the top surface comprising a receiving structure for positioning therein of the sterile surgical instrument, the sterile surgical tray further comprising walls that define a recess sized and configured to receive a reusable non-sterile module, the recess configured to encapsulate the reusable non-sterile module to isolate the reusable non-sterile module from the sterile field of the surgical procedure.

A safety device in a fluid vent conduit for reducing vacuum level in an aspiration conduit of an ophthalmic surgical system. The device includes an orifice having an inlet for receiving a flow of fluid from an irrigation source. The orifice further has an outlet for directing the flow of fluid into the aspiration conduit. The orifice has a cross-sectional area sufficiently large to ensure an acceptable amount of fluid flows into the aspiration conduit, to reduce the vacuum level in the aspiration conduit, to an acceptable level in an acceptable amount of time and to provide adequate reflux. The cross-section area is sufficiently small to restrict the flow of fluid to allow enough fluid to continue to flow from the irrigation source to a handpiece at a surgical site.

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).

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.

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.

An autoclavable endoscope, such as the type used in ophthalmological operations, has a probe that contains optical fiber guides such as an image guide, a laser guide and an illumination guide. The distal end of these guides are sealed to the distal end of the probe with a high temperature medical grade epoxy. The epoxy is selected to retain its structural and optical properties at autoclaving conditions. A preshrunk flexible plastic jacket extends proximal of the handle around the three guides. Because it is preshrunk at autoclavable temperatures, it is not further damaged during autoclaving. The epoxies used proximal to the probe have to be high temperature epoxies but are generally preferably a more flexible urethane type epoxy. Proximal connectors and ferule for the guides are selected metals to retain size and / or conduct heat.

An ophthalmic surgical device (10) includes a housing (12) having a distal end (14) and a proximal end (16). A cannula (18) is attached to the housing distal end (14) and has a distal tip (20) with at least one port (22) in communication with a lumen (19) extending through the cannula (18) and in communication with an aspiration path (24) in the housing (12). A vibration source (26) is held within the housing (12) for vibrating the distal tip (20) for assisting in vitreous and other tissue removal. An aspiration source (152) connected to the aspiration path (24) for applying a negative pressure to the lumen (19) and the at least one port (22) for removing fluids and the vitreous and other tissue from the eye. The vibration source (26) and the aspiration source (152) together create a periodic bi-directional flow of tissue through the port (22) without creating cavitation externally of the distal tip (20).

The present invention relates to biscarbodiimides, thiourea derivatives, urea derivatives, and cross-linked hyaluronan derivatives having at least one intramolecular disulfide bond, and methods of preparation thereof. The invention also includes thiolated hyaluronan derivatives and salts thereof having at least one pendant thiol group or a modified pendant thiol group, and methods of preparation thereof. An example of a modified pendant thiol group is a sulfhydryl group linked to a small molecule such as a bioactive agent, for example a drug or pharmaceutically active moiety. A hyaluronan derivative having a sulfhydryl group linked to a pharmaceutically active moiety is useful as a sustained or controlled release drug delivery vehicle. Compositions containing the hyaluronan derivatives of the invention can reversibly viscosify in vivo or in vitro, in response to mild changes in condition, and are thus useful in ophthalmic surgery and in tissue engineering.

The invention provides an operating bed for the department of ophthalmology, and relates to the technical field of medical equipment of the department of ophthalmology. In the operating bed, a conical hole is formed in a mattress, an air bag is arranged in the conical hole, and when a patient is a kyphosis patient, air in the air bag can be discharged so as to meet the requirement for lying of the kyphosis patient. A headrest is arranged on a bed board, an MP3 player is arranged in the headrest, when operation is performed on a patient, soothing light music can be played through the MP3 player, and therefore the mental stress of the patient is relieved. The bed board is in the lifting type design, the bed board can rise and fall as long as a button is pressed, the needs of doctors of different statures during operation can be met, and therefore the doctors can perform operations conveniently. An illuminating lamp and a magnifying lens are arranged at the head of the bed and can be folded into a second support located at the position of the head of the bed. The operating bed is high in intelligent degree and humanization degree and can be popularized and used clinically and conveniently.

An autoclavable endoscope, such as the type used in ophthalmological operations, has a probe that contains optical fiber guides such as an image guide, a laser guide and an illumination guide. The distal end of these guides are sealed to the distal end of the probe with a high temperature medical grade epoxy. The epoxy is selected to retain its structural and optical properties at autoclaving conditions. A preshrunk flexible plastic jacket extends proximal of the handle around the three guides. Because it is preshrunk at autoclavable temperatures, it is not further damaged during autoclaving. The epoxies used proximal to the probe have to be high temperature epoxies but are generally preferably a more flexible urethane type epoxy. Proximal connectors and ferule for the guides are selected metals to retain size and / or conduct heat.

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.

The invention relates to a fixing device, in particular to a head fixing device for an ophthalmologic operation. The head fixing device for the ophthalmologic operation is good in fixing effect, easyto operate and convenient to use. In order to achieve the technical purposes, the head fixing device for the ophthalmologic operation comprises an operation bed and the like; a shell is arranged at the bottom of the operation bed, a driving mechanism is arranged at the bottom in the shell, fixing mechanisms are arranged on the left side and the right side of the shell, and the driving mechanism ismatched with moving parts of the fixing mechanisms. The head of a patient is fixed through the cooperation of the driving mechanism and the fixing mechanisms; the driving mechanism is fixed through the fixing device, and an operation assisting device is used for observing pathogenetic conditions, so that the effects of being good in fixing effect, easy to operate and convenient to use are achieved.

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 a preparation method of perfluorinated octane. The method includes the following steps: (1) filling a reactor with a catalyst, and carrying out fluoridation treatment with a fluridizer at high temperature; (2) adding octane into a vaporizer to obtain an octane steam, and controlling the vaporizer temperature between 100-150 DEG C; (3) introducing inert gas into the vaporizer, diluting the octane steam, and continuously introducing the octane steam diluted mixed gas into the reactor to carry out a fluoridation substitution reaction with the fluridizer; and (4) carrying out alkali washing, water washing and rectifying purification on the reaction product, to obtain the perfluorinated octane. The perfluorinated octane obtained by the preparation method disclosed by the invention can be used as a pulmonic cavity ventilating liquid or used in manufacture of ophthalmic surgical instruments.

The invention provides a human eye Hartmann contrast sensitivity measuring instrument, which consists of a light source, a pre-compensation mechanism, a light beam matching system, a pore diameter cutting element, a photoelectric detector, a grating display system, a computer system and a human eye bracket, wherein the pore diameter cutting element and the photoelectric detector constitute a Hartmann wave-front sensor; the pre-compensation mechanism can be used for correcting the lower order aberration of eyes; and the computer system is used for testing the contrast sensitivity and recording and analyzing a test result. When human eyes are subjected to contrast sensitivity test through an observation test object generating system, the Hartmann sensor can be used for measuring the aberration of the human eyes simultaneously, and a human eye optical system contrast sensitivity curve is obtained, so that contrast sensitivity curves of a human eye dioptric system and a nerve system are obtained simultaneously, a visual system is evaluated segmentally, quantitative preoperative prediction is performed on the visual function after ophthalmologic operation, and bases are provided for early discovery and in-time treatment of various ophthalmologic diseases.

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.