35 results about "Phacoemulsification" patented technology

The invention discloses a dioptric scleroderma cataract dynamic intraocular pressure stable control ultrasonic emulsification system adaptive to a dual-channel operation, which comprises a host control unit, an ultrasonic emulsification handle, a perfusion and suction system, an intraocular pressure monitoring unit, a pressure balance module and a scleroderma fragmentation module, through cooperation of the intraocular pressure control module and the two-way operation type adaptive control module, a high-precision filling valve and a closed-loop suction pump are synchronously adjusted in real time according to anterior chamber built-in and external monitoring fusion data, and intraoperative intraocular pressure fluctuation is controlled within + / -2 mmHg; through pulse modulation and a self-adaptive negative pressure curve of the hardcore fragmentation enhancement module, the stability of the anterior chamber is ensured while the hardcore fragmentation efficiency is improved; fluid dynamics and energy parameters can be automatically optimized according to conventional incisions or micro incisions; according to the system, the anterior chamber stability problem in the high-difficulty cataract surgery is solved.

The utility model relates to a rotary type ultrasonic emulsification instrument injection and suction handle which comprises an outer shell, a negative pressure pipe is fixed in the outer shell, one end of the negative pressure pipe extends out of the outer shell to be communicated with a negative pressure device, the negative pressure pipe is hinged to a suction pipe, the suction pipe is communicated with an inner cavity of the negative pressure pipe, and the suction pipe is driven by a driving device of the outer shell to rotate. The driving device is used for driving the suction pipe to rotate, the back side area of an incision can be adsorbed by sight lines in the process of sucking and breaking crystalline lenses, meanwhile, the infusion pipe arranged on the outer side of the suction pipe in a sleeving mode is not affected, and the suction pipe is arranged in the outer shell in a sleeving mode. And the expansion degree in the cornea is ensured.

The present disclosure discloses a fluid collection box for phacoemulsification surgery, including a case composed of a front plate, a body, and a rear plate. The case communicates with a waste liquid bag. The body has a perfusion passage and a suction passage that are disposed independently. The perfusion passage is a sealed circulation cavity defined by a cover and the body. The circulation cavity communicates with a first connection port and a second connection port on the body for perfusion. There is a gap between the cover and the body. Connection and disconnection of the perfusion passage is controlled by pressing the cover. The suction passage is a pipeline that communicates a third connection port with the waste liquid bag, and performs perfusion by a peristaltic pump. The suction passage further communicates with a negative pressure regulating loop, to regulate pressure within the suction passage. According to the present disclosure, the perfusion passage and the suction passage are independently disposed, so that the two do not interfere with each other and work independently. Meanwhile, it is ensured that pressure within the perfusion passage is stable, thereby reducing changes of intraocular pressure, and improving safety during use.

The invention provides a cleaning device for an ultrasonic emulsification handle, and belongs to the technical field of ultrasonic emulsification handles, and the cleaning device for the ultrasonic emulsification handle comprises a cleaning pool; the mounting base is fixedly connected to the upper end of the cleaning pool, and a fixing base is arranged on the outer surface of the mounting base, so that efficient, standardized and consistent cleaning is achieved, manual dependence is overcome, three-dimensional dead-corner-free cleaning is achieved for a complex structure, the problem that cleaning is not thorough is solved, meanwhile, the operation safety and the personnel protection level are remarkably improved, and the working efficiency is improved. The contact between an operator and biological pollutants, cleaning liquid droplets and sharp parts of the instrument is isolated to the maximum extent, the risks of occupational exposure and cross infection are effectively reduced, the friendliness and protectiveness of the high-value precision instrument are ensured, the pollutants are efficiently removed, and meanwhile, the safety of the instrument is improved. And scratches to a coating on the surface of an instrument or accidental injuries to a precise structure are effectively prevented.

An apparatus, system and method for providing a may include at least a phacoemulsification surgical console having a customizable non-linear custom aspiration mode. The console may include at least an aspirator; a foot pedal; and a non-transitory computing code resident on a computing memory associated with a computing processor which, when executed by the processor, causes to be executed the steps of: receiving a percentage actuation of the foot pedal; calculating, including from a non-linear algorithm, a percentage actuation for the aspirator corresponded to the received percentage foot pedal actuation; and dictating the calculated percentage aspirator actuation to the aspirator.

The present application relates to a kind of intelligent ophthalmic phacoemulsification instrument, belong to medical instrument technical field, to solve the needle and bottle mouth sterile barrier of existing ophthalmic surgery liquid supply equipment in standby state are vulnerable to damage, and the switching delay caused by manual cap / cap is removed.The instrument includes body, solution suspension rod, Y-shaped infusion tube, replacement mechanism and handle.The replacement mechanism includes protection device with embedded rubber plug protection cylinder, and extension linkage structure for automatically opening bottle cap.In work, idle puncture needle is inserted into the rubber plug of protection cylinder and kept sterile wet state;When main infusion bottle is exhausted, motor and electric push rod linkage, drive replacement frame rotation and lifting, in the synchronous use of extension block automatic pull open the pop can of standby bottle, and the puncture needle pulled out from the protection plug is accurately inserted into new bottle.The present application not only realizes the automatic replacement of infusion bottle, ensures that perfusion liquid is in before entering the whole link sterile safety in eye.

Cataract surgery is in recent years more and more augmented and supported by the application of laser cuts in the eye tissue. Such laser systems are separate units from the phacoemulsification system units that are usually used for cataract extraction. The laser systems require the patient to be positioned under the laser unit and then being moved under the surgical microscope next to the phacoemulsification unit. The here described invention relates to systems combining several aspects of the laser system and the phacoemulsification system. In particular, this invention relates to combining at least some parts of the control system and the housing for both systems and thereby minimizing and optimizing setup time, operating room footprint, patient flow and cost. Furthermore the here disclosed invention relates to integrating the laser system under the surgical microscope and thereby significantly reducing the surgery setup and complexity.

A system and method for operating a medical probe, the method including driving a tip of the medical probe to cause rotation of the tip (i) in a clockwise trajectory in a plane perpendicular to a longitudinal axis during first time intervals, and (ii) in a counterclockwise trajectory in the plane during second time intervals that are interleaved with the first time intervals.

This application discloses a method for detecting corneal thickness after phacoemulsification cataract surgery based on anterior segment OCT, belonging to the field of image analysis technology. The method includes: dividing the cornea into multiple first regions based on a region growing algorithm and initial corneal thickness data; obtaining second regions based on each first region; obtaining multiple partial boundaries based on the second regions; obtaining fibrotic regions based on each partial boundary; and adjusting the scanning density and refractive index of the second regions based on the fibrotic regions and a scanning density correction coefficient to obtain the final corneal thickness data. This application combines the fibrotic regions and the scanning density correction coefficient to adjust the scanning density and refractive index of the second regions, avoiding the errors of calculations using a uniform refractive index in existing technologies, ultimately achieving accurate measurement of corneal thickness and solving the technical problem that existing OCT detection cannot accurately measure corneal regional thickness.

Apparatus for determining a fluid flow rate in a channel of a phacoemulsification probe, including a first pressure sensor, coupled with fluid in the channel at a first position. A second pressure sensor couples with the fluid in the channel at a second position, at a preset distance from the first position, and the fluid flows from the first to the second position. A processor acquires from the first pressure sensor first indications of a pressure profile of a portion of the fluid passing the first pressure sensor, and acquires from the second pressure sensor second indications of a pressure profile of the fluid passing the second pressure sensor. The processor correlates the first and second indications to determine a time for the fluid portion to travel from the first to the second position, and calculates the fluid flow rate in response to the time and the preset distance.

The present application relates to the technical field of medical data processing, in particular to a cataract ultrasonic emulsification postoperative corneal rehabilitation evaluation system based on deep learning. The system comprises an image acquisition module for acquiring postoperative corneal endothelial cell images of a person; a first abnormality analysis module for extracting abnormal corneal regions in the corneal endothelial cell images; a second abnormality analysis module for screening out suspected mechanical damage regions from the abnormal corneal regions; a region segmentation module for segmenting the suspected mechanical damage regions into suspected damage sub-regions; a region division module for determining the division parameters of the suspected damage sub-regions belonging to mechanical damage; based on the pixel number, area and corresponding division parameters in the suspected damage sub-regions, determining the rehabilitation degree, and dividing the suspected damage sub-regions into mechanical damage regions and hyperglycemia damage regions. The present application improves the accuracy of segmentation of mechanical damage regions and hyperglycemia damage regions.

The utility model provides a kind of perfusion bottle detection device, for cataract phacoemulsification instrument, perfusion bottle detection device includes support part and detection part, support part is used to place perfusion bottle, and detection part is used to detect the liquid level condition in perfusion bottle;Support part is the cylindrical structure with opening in side face and is surrounded to form a placement area, and perfusion bottle is placed in the placement area;Two sides of support part are all penetrated and are equipped with adjusting slide, two adjusting slides are symmetrically laid out, and detection part includes first detection piece and second detection piece, and first detection piece and second detection piece are respectively located in two adjusting slides and are slidably connected;In addition, first detection piece and second detection piece are connected by support band.

The application relates to an intelligent ophthalmic ultrasonic emulsifier and a use method, and belongs to the technical field of ophthalmic surgical instruments, which comprises a main machine body, an operating handle, an anchor component and a viscosity type self-locking mechanism, an ultrasonic amplitude rod, a perfusion pipeline and a suction pipeline are arranged in the operating handle, an emulsification needle head and a perfusion sleeve are arranged at one end of the operating handle, a liquid inlet chamber is formed between the emulsification needle head and the perfusion sleeve, the anchor component is arranged in the liquid inlet chamber and is used for anchoring a hard nucleus in front of an opening of the emulsification needle head, and the viscosity type self-locking mechanism is arranged in the suction pipeline and comprises a hairspring disc body provided with a plurality of micropores; the hairspring disc body is configured to be deformed to block the suction pipeline when a high-viscosity fluid cannot pass through the micropores; the hard nucleus is anchored by the anchor component, so that the ocular tissue is prevented from being damaged by the rebound of the nucleus block; meanwhile, the viscosity type self-locking mechanism is used for instantaneously blocking the suction pipeline when the vitreous body is sucked, so that the retina is prevented from being damaged by traction, and the surgical safety and efficiency are improved.

The invention relates to a flushing and ultrasonic emulsification all-in-one machine for the ophthalmology department, and belongs to the technical field of medical instruments. The device comprises a machine body, an I / A handle, a filling / suction module, a connecting box and a cleaning mechanism, in order to solve the problems of needle spiral inner wall cleaning blind areas and sleeve detection dead angles, a new cleaning logic is designed, an I / A handle is fixed to a U-shaped positioning frame, a cleaning rod is inserted into a needle, a rubber block at the end of the cleaning rod is matched with a spiral groove, and adhesion impurities at the deep position of the groove bottom are forcibly scraped off along a spiral track in the downward pressing process; meanwhile, the camera is driven by the rotation action to move around the sleeve, and full-circle dynamic optical detection is carried out on the transparent pipe wall; and the sewage discharge assembly is matched to control sewage discharge. According to the invention, mechanical precision recovery of the inner wall of the special-shaped flow channel and non-blind area damage detection of core components are realized, and operation infection and operation risks are effectively reduced.

A system includes an enclosure, an irrigation retainer, one or more sensors, and a processor. The irrigation retainer is coupled with the enclosure and configured to accept an irrigation container holding irrigation fluid for pumping to a phacoemulsification handpiece. The one or more sensors are coupled with the irrigation retainer and configured to provide at least one signal indicative of a remaining amount of the irrigation fluid. The processor is configured to receive the at least one signal, and in response to the at least one signal, output an estimation of the remaining amount of the irrigation fluid in the irrigation container or an estimation of the amount of irrigation fluid used.

A phacoemulsification system includes a phacoemulsification probe and one or more signal generators. The phacoemulsification probe includes (i) a piezoelectric actuator, (ii) a segmented electrode, including multiple electrode segments attached to respective angular sections of a face of the piezoelectric actuator, (iii) a common ground electrode attached to the piezoelectric actuator, and (iv) a needle configured to be inserted into a lens capsule of an eye and to be vibrated by the piezoelectric actuator. The one or more signal generators are configured to vibrate the piezoelectric actuator by applying multiple drive signals between the multiple respective electrode segments and the common ground electrode.

A patient interface device (PID) for contacting an eye surface and having a meniscus conversion component. A pin, clip and ridge configuration for holding a window and holding an open BSS reservoir in the PID. A PID for an integrated system and method for performing laser and phacoemulsification procedures. A PID for a reconfigurable system for performing laser surgery in a laser configuration and then reconfigured to a phacoemulsification configuration to perform phacoemulsification and then reconfigured back to the laser configuration.

1. The name of the design product: ophthalmic surgical equipment. 2. The use of the design product: the design product is used for the surgical system of anterior and posterior segment of eye surgery, and ophthalmic cataract phacoemulsification and vitrectomy surgery. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

Systems and methods for performing laser and phacoemulsification operations. Systems that provide full position and usage around a patient. An integrated laser-ultrasound, including femto-phaco, system having a safety interlock preventing operation of laser during phacoemulsification procedure. An integrated laser-ultrasound, including femto-phaco, system having a movable and repositionable laser arm and laser head. A laser system and an integrated laser-ultrasound, including femto-phaco, system that provides for 330 degrees of clocking positioning around an eye of the patient. Non-handed integrated laser-ultrasound, including femto-phaco, systems.

A phacoemulsification device includes a phacoemulsification probe and a processor. The phacoemulsification probe includes a piezoelectric crystal configured to vibrate in response to a drive signal, a needle configured to be inserted into a lens capsule of an eye and to be vibrated by the piezoelectric crystal, and a set of magnetic-field components. The set includes (i) one or more magnetic-field generators configured to generate a magnetic field, and (ii) one or more magnetic-field sensors configured to sense the magnetic field. At least one of the magnetic-field components is coupled to vibrate with the needle and at least one other of the magnetic-field components is isolated from vibration of the needle, thereby causing the magnetic-field sensors to output signals indicative of the vibration. The processor is configured to adaptively adjust a frequency of the drive signal so as to vibrate the needle at a resonant frequency of the piezoelectric crystal.

A phacoemulsification system including a phacoemulsification probe including a hollow needle configured to provide an aspiration channel, a valve module including a valve closing element configured to close the aspiration channel upon activation, and a controller for providing an electric current pulse to activate the valve closing element to close the valve module, wherein the controller is programmed to detect a vacuum surge, provide an electric current pulse to a valve actuator in order to activate the valve closing element to close the valve module, wherein the shape of the current pulse includes a first section configured to accelerate the valve closing element, and a second section to decelerate the valve closing element as the valve closing element approaches an end of travel to prevent the valve closing element from hitting the end of travel and bouncing back, thereby preventing a recoil effect. Related apparatus and methods are also described.

An ophthalmosurgical appliance includes an irrigation fluid line through which irrigation fluid can flow from an irrigation fluid container to an ophthalmosurgical handpiece for phacoemulsification, a first fluid pump configured to convey the irrigation fluid to the handpiece, a first volumetric flow determination device configured to determine a first volumetric flow, an aspiration fluid line, a second fluid pump configured to convey aspiration fluid to the collecting container, a second volumetric flow determination device configured to determine a second volumetric flow, a difference element configured to form a difference from the first volumetric flow and the second volumetric flow to form a differential volumetric flow signal, and a control device configured to determine, from the differential volumetric flow signal and the irrigation fluid setpoint pressure signal, a signal for an irrigation fluid control pressure to supply this signal at an output of the control device to the first fluid pump.

An apparatus for treating an eye includes a housing, an excimer laser source within the housing, an ultrasound generator within the housing, an irrigation source within the housing, and an aspiration source within the housing.

Title: An actuator unit, a method and a computer program product Abstract The invention relates to an actuator unit for operating an ophthalmic surgical phacoemulsification device. The actuator unit comprises a stack of driving piezo elements for driving a tip of the ophthalmic surgical phacoemulsification device. Further, the device comprises a driver circuit arranged for generating a driver signal for actuating the stack of piezo elements. In addition, the device comprises a probing circuit arranged for generating a probing signal for ultrasonically probing an environment of the tip. Furthermore, the device comprises a sensing circuit arranged for receiving a sensing signal resulting from probing the tip environment. The invention also relates to a method and a computer program product. Fig. 1

An eye surgery system includes an Input / Output (I / O) device and a processor. The I / O device is configured to enable a user to define one or more eye surgery protocols, and further configured to, using the I / O device, present a graphical user interface (GUI) that displays one or more user defined eye surgery protocols. The processor is configured to (a) present the one or more user defined eye surgery protocols on the I / O device using the GUI, (b) test compatibility of the one or more user defined eye surgery protocols with the eye surgery system, and (c) provide an indication of the compatibility to a user of the eye surgery system.

The present application relates to a kind of intelligent auxiliary prescription systems of lens eye intraocular lens, comprising: haptics landing line acquisition module, obtain the three-dimensional structure data of anterior chamber and posterior chamber, construct 3D topographic map of ciliary sulcus area by AI three-dimensional image semantics analysis, obtain the best fitting ciliary sulcus line by fitting, with the best fitting ciliary sulcus line as reference, calculate and obtain haptics landing line;Ideal haptics determination module, according to the lateral depth difference between each point on haptics landing line, obtain the ideal haptics position combination sequence of intraocular lens;Crystal matching module, obtain the inventory data of crystal, based on the arch height prediction range and ideal haptics position combination sequence obtained in advance, obtain the best matching intraocular lens and its implant rotation position scheme from the crystal inventory.Compared with prior art, the present application has the advantages of high accuracy of crystal size matching, meeting the stability requirements of crystal implantation, more accurately guiding how to rotate and adjust arch height of crystal and optimizing crystal prescription process.

A phacoemulsification device includes a phacoemulsification probe and a processor. The phacoemulsification probe includes a piezoelectric crystal configured to vibrate in response to a drive signal, a needle configured to be inserted into a lens capsule of an eye and to be vibrated by the piezoelectric crystal, and a set of magnetic-field components. The set includes (i) one or more magnetic-field generators configured to generate a magnetic field, and (ii) one or more magnetic-field sensors configured to sense the magnetic field. At least one of the magnetic-field components is coupled to vibrate with the needle and at least one other of the magnetic-field components is isolated from vibration of the needle, thereby causing the magnetic-field sensors to output signals indicative of the vibration. The processor is configured to adaptively adjust a frequency of the drive signal so as to vibrate the needle at a resonant frequency of the piezoelectric crystal.

The invention relates to an intelligent ophthalmologic ultrasonic emulsification instrument, belongs to the technical field of medical instruments, and aims to solve the problems that a needle head and a bottle opening sterile barrier are easy to damage when existing ophthalmologic operation liquid supply equipment is in a standby state, and switching is delayed due to manual uncapping / uncapping. The instrument comprises a machine body, a solution suspension rod, a Y-shaped infusion tube, a replacement mechanism and a handle. The replacing mechanism comprises a protection device with an embedded rubber plug protection barrel and an extending linkage structure used for automatically opening the bottle cap. During working, an idle puncture needle is inserted into the rubber plug of the protective cylinder to keep a sterile wet state; when the main infusion bottle is used up, the motor is in linkage with the electric push rod to drive the exchange frame to rotate and ascend and descend, the extension block is used for automatically pulling open the easy-to-pull cover of the standby bottle while the pulling-out action occurs, and the puncture needle pulled out of the protection plug is accurately inserted into a new bottle. According to the invention, the automatic replacement of the infusion bottle is realized, and the full-link sterile safety of perfusate before the perfusate enters the eyes is ensured.

A phacoemulsification system and a method are described. The system including: a handpiece having a needle and a sleeve at a distal end and an orientation detection unit; an irrigation module configured to supply irrigation fluid into the eye; an aspiration module configured for aspiring eye fluid; a priming cover for fitting over the distal end of the handpiece during a priming process; external pressure sensors coupled with the priming cover; one or more sensors for monitoring at irrigation and spiration pressure; and a processor configured to operate in a priming process. The priming process includes operating the irrigation module to fill the irrigation channel with fluid and remove air bubbles. The one or more processors are configured for obtaining calibration pressure data from the external pressure sensors and orientation data from the orientation detection unit and for calibrating the sensors of the system in accordance with orientation data.

Systems and methods are provided for detecting the actual tip or tip type being used on a handpiece of an ophthalmic instrument. By detecting the tip type being used, the correct system settings can be used during the surgical procedure, and the surgical system may operate safely.