111 results about "Laser surgery" patented technology

In certain embodiments, ophthalmic laser system includes an auxiliary light system, laser system, imaging system, and computer. The auxiliary light system directs auxiliary light towards a test target according to a planned test pattern to yield one or more actual auxiliary spots of an actual test pattern on the test target. The planned test pattern indicates one or more planned auxiliary spots located relative to a planned laser spot in a predetermined manner. The laser system directs a laser beam to yield an actual laser spot of the actual test pattern on the test target. The imaging system generates a digital image of the actual test pattern. The computer analyzes the digital image to compare the actual to the planned test pattern, detect a deviation of the actual from the planned test pattern, identify an issue indicated by the deviation, and provide output in response to the issue.

According to the anti-blocking adsorption laser operation endoscope and the method, the anti-blocking adsorption laser operation endoscope is installed at the position far away from an endoscope body and an adsorption opening through an adsorption switch, or the adsorption opening is a plane or a curved surface and comprises a structure of at least two open holes and matched size design. Or an ultrasonic device and an installation mode of the ultrasonic device are adopted, so that the probability that the broken stones block the suction channel is greatly reduced, and blockage is prevented, and meanwhile, the stones are continuously reset at the position of the suction port through a method that the suction switch repeatedly and continuously connects and disconnects the suction port and the suction source; therefore, the continuous laser lithotripsy performance during the operation is kept; through the program control of the suction switch of the anti-blocking adsorption laser operation endoscope, the working intensity of an operation doctor during the operation for controlling an instrument is reduced, so that the operation is more convenient and simpler; through the design of the quick-connection type connector of the anti-blocking broken stone adsorption laser operation endoscope component, instrument sterilization is more convenient, function expansion is more flexible, or independent production is arranged; the invention relates to a method for treating human and animal focuses, especially calculi, by using an anti-clogging laser surgery endoscope catheter.

The invention relates to the technical field of laser control, and discloses a laser control method and device for an ultra-pulse thulium-doped fiber laser operation system, and the method comprises the steps: generating a PWM time-base waveform through an FPGA, and generating a reference duty ratio instruction based on a target pumping current value; the total response delay time of the acousto-optic modulator is calculated, the FPGA sends a trigger pulse to the acousto-optic modulator according to the total response delay time, the gated modulation laser is output to the optical fiber output end to obtain an analog voltage signal, and the analog voltage signal and the numerical value of the target power register are used for calculating a duty ratio correction increment; the duty ratio correction increment and the reference duty ratio instruction are updated to a duty ratio register of a PWM time base waveform, and multiple paths of pump cooperative driving waveforms are output. The technical problems of pump current response lag, acousto-optic modulator triggering jitter and optical power nonlinear saturation in an ultra-pulse thulium-doped fiber laser operation system are solved; and the laser pulse energy stability, the response speed and the long-term reliability are improved.

The invention belongs to the technical field of control systems, and particularly relates to a control system based on combination of dynamic focal length adjustment and vision correction, which comprises a bearing plate and a parameter configuration and feedback module, the two sides of the top of the bearing plate are rotationally connected with lens groups, and the parameter configuration and feedback module is used for collecting user information and initial matching training core parameters and sending the initial matching training core parameters; continuously receiving multi-dimensional real-time feedback, and iteratively optimizing parameters based on the feedback; the dynamic training content generation module is used for generating dynamic 2D and 3D contents and interactive games of adaptive set and adjustment training according to the training parameters optimized by the parameter configuration and feedback module; on the basis, through an adjusting and training mechanism combining hardware and software, personalized adaptation to vision requirements of different users is achieved, medical risks and high cost of laser surgery are avoided, and the problems that traditional glasses and contact lenses are limited in adaptability and inconvenient to use in daily life are solved.

A laser surgery system capable of navigation and positioning, the system comprising a navigation and positioning module (101), a central workstation management module (102), a laser device module (103) and a laser output module (104), wherein the navigation and positioning module (101) comprises a coordinate acquisition unit, an infrared camera and a tracking and positioning apparatus; the central workstation management module (102) is used for generating a control signal on the basis of parameter setting information and generating a positioning instruction on the basis of received navigation information; the laser device module (103) is used for driving, on the basis of the control signal, a laser generation apparatus to generate a working laser; the laser output module (104) is used for outputting the working laser; the coordinate acquisition unit is connected to each of the infrared camera and the central workstation management module, and the coordinate acquisition unit is used for acquiring infrared reflection information by means of the infrared camera after receiving the positioning instruction, and obtaining mark positioning information on the basis of the infrared reflection information and the tracking and positioning apparatus; and the central workstation management module (102) is further used for obtaining a skin reference plane and a surgical tool position on the basis of the mark positioning information, and displaying the skin reference plane and the surgical tool position on an operation screen. The system can precisely position a focus and guide a surgical operation in a timely manner, thereby realizing visualized targeted therapy and precision medicine.

The invention discloses an intelligent analysis system for a facial skin laser operation, and aims to provide a precise laser treatment scheme for a patient through intelligent analysis and personalized recommendation. The system comprises a data acquisition module, a preprocessing and analysis module, an intelligent diagnosis module, a treatment scheme recommendation module and a feedback and monitoring module. A high-definition camera, an infrared sensor, an ultrasonic scanner and other devices are used for collecting facial skin data of a patient, a deep learning algorithm is used for accurately diagnosing skin problems, and a personalized laser treatment scheme is generated according to a diagnosis result. In addition, the system can track the treatment effect in real time and adjust the treatment scheme according to the recovery condition, so that the safety and effectiveness of treatment are ensured. According to the system, the accuracy and individuation level of laser treatment can be greatly improved, the uncertainty and side effects in a traditional laser treatment method are improved, and the treatment effect and satisfaction degree of a patient are improved.

The invention discloses a femtosecond laser assisted room corner cutting device which comprises a placing table, a femtosecond laser generator is arranged on one side of the placing table, a slit lamp microscope is placed on the placing table, a bracket is arranged on the placing table, the bracket is arranged in the direction right opposite to the slit lamp microscope, and the bottom end of the placing table is connected with a bottom frame through a telescopic supporting column. Notches are formed in the sides, close to the slit-lamp microscope and the bracket, of the bottom frame, an adjuster is arranged on the placing table, the slit-lamp microscope is connected with the femtosecond laser generator through a circuit, and the adjuster is arranged on the circuit; through combination of the femtosecond laser generator and the slit lamp microscope, the chamber angle incision operation is simplified, even if a traditional incision chamber angle incision operation (also known as intranet trabecular meshwork incision operation) is changed into an incision-free laser operation, the operation infection risk is reduced, the chamber angle incision operation can be transferred to a hospital outpatient service from an original operating table, and the operation efficiency is improved. And medical resources and human resources are greatly saved.

The invention relates to an ophthalmology laser operation auxiliary positioning method, a storage medium and equipment, and relates to the technical field of ophthalmology laser operations. The method comprises the following steps: acquiring OCTA image data of blood vessels around the iris of a patient through optical coherence tomography angiography; processing the OCTA image data to identify blood vessel condition information; based on the blood vessel condition information, safe area coordinates avoiding the blood vessel position are generated; the safety zone coordinates are mapped to a surgical navigation system to guide implementation of a laser drilling operation. According to the technical scheme, OCTA imaging and processing are carried out on the blood vessels around the iris of the patient, the high-risk blood vessel position can be effectively recognized, and the safe punching area coordinates avoiding the blood vessels are generated based on the high-risk blood vessel position, so that the risk of complications such as bleeding in an operation is greatly reduced, and the operation efficiency is improved. And the safety of the closed-angle glaucoma laser peripheral iris resection is improved.

Disclosed are systems and methods for determining target characteristics during a laser procedure, comprising (i) obtaining a relationship between (i) a number of pixels associated with a light beam reflected from a target or an object located in proximity to the target on an endoscopic image obtained from a video sensor coupled to an endoscope and (ii) a distance of the target from a tip of the endoscope. The method further comprising (ii) measuring the number of pixels associated with the light beam reflected from the target or the object located in proximity to the target during a procedure, and (iii) based at least in part on the relationship obtained in step (i) and the measured number of pixels in step (ii), determining at least one of a size of the target or a distance of the target from the tip of the endoscope.

Disclosed are systems and techniques for providing laser treatment. For example, a vasculature structure associated with a tissue region can be determined. Based on the vasculature structure, one or more laser parameters for configuring a laser to deliver laser energy to at least one blood vessel within the tissue region can be determined. Laser energy can be delivered to the at least one blood vessel to halt blood flow to a targeted area within the tissue region.

The utility model discloses a time division multiplexing coated lens for laser surgery, which comprises a substrate lens and a film material layer, the film material layer is fixed on the substrate lens, the film material layer is provided with at least two kinds of film materials, including a high refractive index film and a low refractive index film, the high refractive index film and the low refractive index film form an irregular film system, particularly an anti-reflection film system, and the film material layer is provided with at least two kinds of film materials. According to the utility model, the K9 glass is used as the substrate, the H4 and MgF2 film material combination is selected and used, and an anti-reflection film system which simultaneously plays an anti-reflection role in visible light wave bands of 400-700 nm and three near-infrared laser wavelengths of 980 nm, 1064 nm and 1470 nm is designed, so that the light energy efficiency and the signal-to-noise ratio of an optical system are effectively improved; in the laser operation process, laser sources with multiple wavelengths can be switched and used, and real-time imaging and monitoring can be achieved.

The invention discloses a medical recombinant collagen repair liquid preparation method, which is prepared from the following raw materials by weight: 1-100 g of recombinant collagen, 1-100 g of sodium hyaluronate, 1-100 g of glycerol, 1-100 g of purified water, and 1-10 g of methylparaben. The medical recombinant collagen repair liquid can effectively repair skin barriers and treat skin injuries caused by multiple reasons such as burns, wounds and laser postoperations, and meanwhile, the medical recombinant collagen repair liquid has remarkable advantages in the fields of gynecological inflammation treatment, private anti-aging, micro-ecological balance maintenance, wound healing promotion, tissue elasticity and compactness improvement and the like. Adverse reactions such as allergy are effectively reduced, and the requirements of people for high efficiency and safety of skin repairing products are met.

In certain embodiments, a patient interface for an ophthalmic laser system comprises an interface portion and a mounting portion. The interface portion comprises a contact portion, a conical wall, and one or more structures. The contact portion has an abutment surface configured to contact the cornea of ​​the eye. The conical wall is disposed outwardly of the contact portion and defines an interior of the cone. The conical wall has an inner surface and an outer surface, the inner surface defining the interior of the cone. The conical wall has an upper portion and a lower portion, the lower portion being coupled to the contact portion. The one or more structures direct light from the conical wall toward the interior of the cone. The mounting portion mounts the interface portion to the cornea of ​​the eye.

The trachea cannula comprises a cannula body, a fixing air bag, an anti-burning air bag and an anti-burning layer, on the first hand, the cannula body can be a hose, the cannula body can directly pass through the glottis, it is avoided that airflow influences the stability of tissue in an operation area, and the operation stability and safety are guaranteed; secondly, an anti-burning air bag can be arranged on the subglottic part, the air pipe and the glottis are directly blocked through the anti-burning air bag after the anti-burning air bag is ventilated, and the subglottic air pipe is prevented from being damaged by CO2 laser in the operation process; thirdly, the surface of the anti-burning air bag is covered with an anti-burning layer made of a contractile flame-retardant material, and serious complications caused by spontaneous combustion induced in the CO2 laser operation process can be prevented; fourthly, through the arrangement of an anti-burning air bag and an anti-burning layer, the gap between the glottis and the airway can be completely sealed conveniently, and the situation that bleeding and seepage flow into the airway in the operation process to cause related complications of the lung is prevented.

Systems, devices, and methods for direct user control of a medical laser system to provide adjustable laser treatment to a target without shutting off laser emissions during a medical laser procedure are described. An exemplary medical laser system comprises a laser system to emit laser pulses via an optical fiber to an anatomical target of a patient, an actuator operable by a user to spontaneously activate or adjust laser system operation, and a controller circuit to provide a feedback to the user about the spontaneous activation or adjustment of the laser system operation. The controller circuit may generate a control signal to cause the laser system to emit laser pulses in accordance with the spontaneous activation or adjustment of the operation of the laser system.

The invention belongs to the technical field of laser surgery, and particularly discloses a path broadening and overlap removing laser surgery positioning method and system and a program product, which can greatly improve the efficiency and accuracy of laser surgery by performing path construction, path broadening and overlap removing processing on continuous path points in a surgical area automatically acquired by a robot; a non-overlapping path widening area is ensured through a refined overlapping removing mechanism, and the precision and safety of laser operation path positioning are effectively improved; the path widening and splitting degree can be flexibly adjusted according to the requirements of the laser surgery, so that the precision requirements under different laser surgery scenes are met; by automatically generating the standard format laser operation coordinate positioning file, the system compatibility and clinical operation convenience can be improved. The system has the capabilities of automatically collecting and splitting the laser operation path, precisely widening and removing overlapping of the path and standardizing positioning output, and can realize efficient processing and precise control of the robot-assisted laser operation path.

In certain embodiments, an ophthalmic laser surgical system for imaging and treating a target in an eye includes an optical coherence tomography (OCT) device that: directs an imaging beam towards the eye; generates three-dimensional (3D) image data from the imaging beam reflected from the eye; and generates two-dimensional (2D) enface images from the 3D image data. The 2D enface images include a target enface image imaging the target in the eye and a retinal enface image imaging a shadow cast by the target onto the retina. An xy-scanner directs the imaging beam along an imaging beam path towards the eye, and directs a laser beam from the laser device along a laser beam path aligned with the imaging beam path towards the eye. A computer compares the target of the target enface image and the shadow of the retinal enface image to confirm the presence of the target.

A micromanipulator (1) for manipulating a laser beam (L in , L scan ) of a laser surgery device, comprising a scanner (10) for generating at least one scan figure (60) and at least one control element for controlling the scanner (10), wherein the control element comprises a rotating element (51), wherein a rotation (D d) of the rotating element (51) causes a rotation (D s) of the scan figure (60), which depends on the size and / or speed of the rotation (D d) of the rotating element (51), wherein the rotating element (51) can rotate freely without limiting the angle of rotation and the scan figure (60) follows this free rotation without restrictions, and a laser surgery device with said micromanipulator (1).

The utility model discloses a femtosecond laser surgery system based on wavefront modulation, a laser device of the femtosecond laser surgery system emits double-pulse laser, the first pulse laser is low in energy and is used for exciting glow / fluorescence signals in a turbid crystalline lens; the excitation light signal penetrates through the turbid medium and is imaged on the wavefront measurer through the focusing lens; the excitation signal light wave front carries turbid medium scattering information on a light propagation path. The wavefront measurer carries out conjugate processing on captured wavefront information and loads the information to the wavefront modulator, wavefront pre-modulation is carried out on a second strong pulse laser, and scattering of light in a turbid medium is compensated. The second cutting intense pulse laser is focused in the turbid medium in a high-quality mode, and effective focusing is achieved.

A laser surgery apparatus equipped with a cooling system according to an embodiment of the present application includes a laser module that irradiates a patient's skin with a laser beam; a sensor for detecting the temperature of the patient's skin surface before, during, or after the skin is heated by the laser beam; an inlet for receiving a coolant from a coolant storage portion; a nozzle for spraying the coolant toward the skin; a conduit connecting the inlet and the nozzle; a flow rate regulator that controls the amount of spraying of the coolant by using a valve located on the conduit and connecting or disconnecting the inlet and the nozzle; and a coolant condition regulator that applies heat energy to the coolant by using a thermoelectric element located between the flow rate regulator and the nozzle.

Surgical devices and methods of operation thereof are provided herein. The surgical devices include interior walls defining a cavity that extends along a first axis and having an aperture at a first end of the surgical devices. The surgical devices include a backstop spaced apart from the aperture and having a surface opposing the aperture. The surgical devices include an arm that extends from the surgical device. The surgical devices are configured to receive a fiber waveguide into the cavity at a second end. The surgical devices of some embodiments include a surface for reflecting laser light from the fiber waveguide.

The present invention relates to a laser surgical system for cutting hard tissue on an object, comprising a handheld laser applicator, a collaborative robot with a robot arm to which the handheld laser applicator is attached, a navigation system with which the instantaneous position of the laser applicator relative to the object can be detected, and a controller for the collaborative robot. The laser applicator has a measuring device with which the cutting depth of a kerf produced by a processing laser beam and the residual thickness of the hard tissue in the kerf can be measured.The control system directs the collaborative robot during the execution of a cut based on data from the navigation system and the measuring device in such a way that it maintains a cutting distance of the laser applicator to the object required for cutting via the robot arm and only allows a feed movement of the laser applicator along a cutting line by the operator when a cut that has just been carried out is completely finished.

Systems, devices and methods are provided to deliver microporation medical treatments to improve biomechanics, wherein the system includes a laser for generating a beam of laser radiation on a treatment-axis not aligned with a patient's visual-axis, operable for use in subsurface ablative medical treatments to create an array pattern of micropores that improves biomechanics. The array pattern of micropores is at least one of a radial pattern, a spiral pattern, a phyllotactic pattern, or an asymmetric pattern.

The invention discloses a femtosecond laser operation flat-topped beam shaping optical system which comprises a laser, a beam expander, a DOE shaping module and a focusing scanning module. The laser is used for outputting a femtosecond Gaussian laser beam, and the femtosecond Gaussian laser beam sequentially passes through the beam expander, the DOE shaping module and the focusing scanning module and then acts on an operation area; the beam expander is used for expanding the diameter of the femtosecond Gaussian laser beam to the beam diameter used for cutting the light path; the DOE shaping module comprises a DOE diffractive optical element; the DOE diffractive optical element is arranged on a path of the femtosecond Gaussian laser beam and is used for converting an incident Gaussian beam into a flat-topped beam with uniformly distributed energy through phase modulation; the flat-topped light beam has no local energy peak value, thermal damage and excessive ionization of traditional Gaussian laser to normal tissues of eyes are avoided, postoperative inflammatory response is light, the tissue recovery speed is increased, and the risk of operative complications is reduced.

Methods of treating an eye are provided that entail partially penetrating the sclera and delivering light energy from an optical fiber within the penetration to treat the a target tissue in the eye, for example, to coagulate vasculature underlying the sclera within a planned incision area. Also provided are treatment probes for treating an eye of a patient includes an elongate body that defines a handle and an advanceable penetrating member and optical fiber housed within the elongate body. The probe is configured to advance the penetrating member so as to penetrate the sclera, only partially, and advance the treatment fiber into the penetration to deliver treatment light energy to coagulate the vasculature underlying the sclera. The probe can include one or more penetrating members and corresponding optical fibers to form one or more penetrations concurrently within the planned incision area.

In certain embodiments, an ophthalmic laser surgical system for treating a floater in a vitreous of an eye includes a floater detection system, a laser device, and a computer. The floater detection system determines the location of the floater in the vitreous of the eye. The laser device directs a laser beam along a laser beam path towards the floater. The computer accesses a three-dimensional scan pattern for the laser beam that yields a three-dimensional pulse pattern of laser pulses. The three-dimensional pulse pattern has a bubble shield pulse pattern at the posterior side of the three-dimensional pulse pattern. The bubble shield pulse pattern forms a bubble shield that reduces laser radiation exposure at a retina of the eye. The computer instructs the laser device to direct the laser beam towards the floater according to the three-dimensional scan pattern.

This invention discloses a holmium ion-doped yttrium gadolinium oxide single-crystal optical fiber, its preparation method, and its applications, belonging to the field of laser materials and laser technology. The chemical formula of the single-crystal optical fiber is Ho. 3+ YGdO3, wherein the Ho ion doping concentration is 0.2-1.0 at.%, is a cubic C-type sesquioxide crystal structure with space group Ia-3. This crystal exhibits characteristic absorption peaks at wavelengths of 1100-1200 nm and Ho-derived absorption peaks at 2.80-2.90 μm. 3+ ion 5 I6→ 5 Broad-spectrum mid-infrared fluorescence emission with I7 level transition; this crystal possesses a wide gain bandwidth, a large emission cross section, and excellent thermal properties, making it less prone to thermal lensing and thermal depolarization under continuous or high-repetition-rate pumping of single-crystal fibers, thus ensuring high stability of laser output. It is particularly suitable for realizing broadband tunable and ultrafast mode-locked mid-infrared lasers, and has broad application prospects in laser surgery, environmental monitoring, remote sensing, and other fields.

This invention relates to the field of optical objective lens technology specifically designed for medical applications, specifically to an optical lens for laser surgery, comprising ten lenses arranged sequentially along the optical axis from the object side to the image side: a first lens with negative optical power, a second lens with positive optical power, a third lens with positive optical power, a fourth lens with positive optical power, a fifth lens with negative optical power, a sixth lens with negative optical power, a seventh lens with positive optical power, an eighth lens with negative optical power, a ninth lens with negative optical power, and a tenth lens with positive optical power. This invention solves the problem of low energy density in the prior art.

Particular embodiments disclosed herein provide methods and systems for aligning multi-core fibers with multi-spot laser beam patterns of laser surgical systems. In particular, certain aspects provide techniques for aligning a rotational angle, or “clocking” angle, of a multi-core fiber with a fixed multi-spot laser beam pattern of a laser system utilizing digital imaging and analysis.

A method of enhancing the quality of a skin scar by topical application of an agent for improving scar quality is characterised in that said agent is pre-emptively applied to a potential surgical cutaneous site in advance of surgery, including surgery involving use of lasers. The topical agent may be a polyphenol, such as (-)-epigallocatechin-3-gallate (EGCG). Use of such a topical agent in advance of surgery leads to significant beneficial effects on dermal scarring by reducing mast cells, angiogenesis, skin thickness and simultaneously increasing elastin content. The topical agent may be applied directly or incorporated in a dressing, such as in a dermal patch comprising an adhesive silicone sheet, and can be worn both in the lead up to surgery and post-operatively.