204 results about "Surgical lasers" patented technology

An article of manufacture including a fiber optic termination of a small core optical fiber for use with a surgical laser (characterized by a high M2 factor) or other high-power or high-energy pulse laser is configured for safe and efficient coupling of light at a large laser focal point and / or to enable the process of coupling of radiant intensities exceeding the silica fiber damage thresholds and / or those ionizing the air if fully focused therein. The termination includes a glass cylinder structured to include a core region and a glass cladding region the ratio of dimensions of which is substantially equal to the ratio of respectively-corresponding dimensions of the employed optical fiber. A method of coupling laser light characterized by an M2 factor of 25 or higher into an optical fiber with the use of same.

An article of manufacture including a fiber optic termination of a small core optical fiber for use with a surgical laser apparatus (the output from which may be characterized by a high M2 factor) or other high-power or high-energy laser (including an appropriate fiber laser) is configured for safe and efficient coupling of light at a large laser focal point and / or to enable the process of coupling of radiant intensities exceeding the silica fiber damage thresholds and / or those ionizing the air if fully focused therein. The termination may include a glass cylinder structured to include a core region and a glass cladding region the ratio of dimensions of which is substantially equal to the ratio of respectively-corresponding dimensions of the employed optical fiber. A method of propagating light through such article of manufacture.

Laser lithotripsy systems and methods with a controlled retropulsion setting to facilitate manipulation, migration, and ablation of a calculi structure are disclosed. An endoscopic lithotripsy system comprises a laser system to provide laser pulses to a calculi structure in an anatomical environment, and a controller circuit to localize the calculi structure. If it is determined that the calculi structure is not at a target location, the laser system emits first laser pulses according to a first laser output setting, which produces a high retropulsion effect to mobilize and reposition the calculi structure to the target location. For calculi structure located at or migrating to the target location, the laser system emits second laser pulses according to a second laser output setting, which produces a lower retropulsion effect than the first laser pulses, but a higher efficiency to ablate or fragment the calculi structure.

In an ophthalmic surgical laser system, a patient interface device for coupling a patient's eye to the laser system includes a lens cone with a frustoconical shaped shell for coupling to the laser system and a suction ring for coupling to the patient's eye, the lens cone and the suction ring being joined together by clamping. A cap is provided for use with the lens cone as an installation aid. In the configuration supplied to the user, the lens cone is partially embedded in and snapped to the cap. The cap has a portion with a relatively large diameter and multiple ribs for easy handling. The user holds the cap to install the lens cone on the laser system, and pulls the cap to unsnap it from the lens cone. The lens cone is attached to the laser system with a bayonet mount that provides tactile feedback to the user.

Systems, devices, and methods for providing adjustable laser treatment of a target using fiber-to-target distance measurements are disclosed. An exemplary surgical laser system includes a laser system to generate and deliver laser pulses to an anatomical target via an optical fiber, a feedback analyzer circuit to receive a return laser signal in response to a chirped laser irradiating at the target, and a controller circuit. The feedback analyzer circuit can generate an optical coherence metric using the chirped laser and the return laser signal, and determine a fiber-to-target distance between a distal end of the optical fiber and the target. Based at least on the fiber-to-target distance, the controller circuit can adjust a position or an orientation of the distal end of the optical fiber, or adjust a surgical laser output setting for generating and delivering laser pulses to the target.

The invention discloses a construction method and application of a histopathologic quantitative evaluation model of choroidal neovascularization, and the evaluation model constructed by the method can accurately identify a choroidal neovascularization structure around a laser spot, and can carry out rapid batch analysis on a large number of laid sheets. The reliability and the consistency of analysis results are improved, and differences caused by laser surgery, interference of manual operation factors and the labor cost of analysis are reduced.

A target volume of ocular tissue of an irido-corneal angle of an eye is treated by moving a focus of a laser through the target volume of ocular tissue, and photodisrupting the target volume of ocular tissue at a plurality of spots as the focus is moved through the target volume of ocular tissue. The focus is moved by transverse scanning the focus between at least one of: a first circumferential boundary and a second circumferential boundary of the target volume of ocular tissue, and a first azimuthal boundary and a second azimuthal boundary of the target volume of ocular tissue, and axial scanning the focus between a distal extent and a proximal extent of the target volume of ocular tissue.

A removable cap for an endoscope used with a surgical laser to improve the stone free rate (SFR) of lithotripsy procedures. The removable cap includes a filter configured to block or filter light of a wavelength like a wavelength of light from an aiming beam generated by the surgical laser.

A method for controlling a surgical laser system that includes providing a surgical fiber configured to receive light reflected from a target in a surgical treatment area, and providing a computing device configured to couple with at least two photodetectors, each photodetector configured to detect an intensity of reflected light from the target in a different selected wavelength band, the computing device further configured, to: receive the reflected light intensity in at least two selected, wavelength, bands, generate optical data corresponding to the reflected light intensity, and identify the target as a treatment target or a non-treatment target based at least in part on the optical data and a predetermined calibration based on at least two known targets.

Methods and systems are provided for using optical interferometry in the context of material modification processes such as surgical laser or welding applications. An imaging optical source that produces imaging light. A feedback controller controls at least one processing parameter of the material modification process based on an interferometry output generated using the imaging light. A method of processing interferograms is provided based on homodyne filtering. A method of generating a record of a material modification process using an interferometry output is provided.

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.

To provide an improved system and method for controlling medical procedure processing. [Solution] The surgical laser system comprises a surgical optical fiber optically coupled to a light source, and a photodetector configured to receive a portion of light reflected from a treatment target, and to generate optical data corresponding to the portion of reflected light interacting with the photodetector. The system also comprises a computing device configured to analyze the optical data against a characteristic criterion, and to control the operation of the laser source based on a comparison of the optical data with the characteristic criterion.

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.

Embodiments of a surgical laser system comprise a laser source (102), a laser fiber (104), a photodetector (106) and a controller (108). The laser source is configured to generate laser energy (1 10). The laser fiber is optically coupled to the laser source and is configured to discharge the laser energy generated by the laser source. The photodetector is configured to generate an output signal (1 12) that is indicative of an intensity level of electromagnetic energy feedback (114) that is produced in response to the discharge of the laser energy. The controller is configured to control the laser source based on the output signal.

The invention relates to the field of medical treatment, in particular to a device for retina laser surgery practice. The eyeball model comprises a sclera, a cornea, an iris, a crystalline lens, a vitreous body and a retina; the mutual shapes and position relations of the sclera, the cornea, the iris, the crystalline lens, the vitreous body and the retina are the same as those of a real eyeball; wherein the retina is made of a photosensitive material; in the retina laser operation practice process, laser marks can be left on the photosensitive material through the fundus laser machine, and then a doctor is assisted to conduct practical operation practice.

A method implemented in an ophthalmic surgical laser system that employs a resonant scanner, scan line rotator, and XY- and Z-scanners, for forming a corneal flap in a patient's eye with improved bubble management during each step of the flap creation process. A pocket cut is formed first below bed level, followed by the bed connected to the pocket cut, then by a side cut extending from the bed to the anterior corneal surface. The pocket cut includes a pocket region located below the bed level and a ramp region connecting the pocket region to the bed. The bed is formed by a hinge cut and a first ring cut at lower laser energies, followed by a bed cut and then a second ring cut, which ensures that any location in the flap bed is cut twice to minimize tissue adhesion. The side cut is formed by multiple side-cut layers at different depths which are joined together. All cuts are formed by scanning a laser scan line generated by the resonant scanner.

The present invention provides a laser fiber operator. The laser fiber operator includes a first pipe sleeve for mounting, and the first pipe sleeve is provided with a front passage for threading of an optical fiber in an axially through manner. Moreover, a first guide pipe, a second guide pipe, and a third guide pipe are axially mounted at a front end of the first pipe sleeve, and flow guide passages are formed between the guide pipes. Similarly, a second pipe sleeve and a third pipe sleeve are coaxially mounted at a rear end of the first pipe sleeve, and a flow guide passage is also formed between the second pipe sleeve and the third pipe sleeve. As the passages at the front end and the rear end of the first pipe sleeve are correspondingly connected and independently provided, effects of suction drainage and flushing drainage can be achieved according to requirements of use. Moreover, valves are disposed on the corresponding passages to achieve control over suction and flushing. An incision is rapidly and accurately flushed and cooled during cutting of a laser surgery, a field of view can be improved, and surgical efficiency and safety are improved. In addition, cutting, flushing and suction functions are integrated, and a surgeon can achieve the above operations with one hand, and usage is more convenient.

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.

A surgical laser fiber for use in surgical laser procedures such as laser lithotripsy includes a relatively small diameter silica core surrounded by a thin intermediate doped silica cladding and a relatively thick outer glass cladding or ferrule surrounding the thin intermediate doped silica cladding, with the result that erosion of the fiber is primarily confined to the silica core, causing the relatively thick outer glass cladding or ferrule to form a standoff that extends beyond the eroded end of the silica core as lasing proceeds. The diameter of the silica core may be approximately 80 μm and a thickness of the outer glass cladding may be approximately 200 μm. The surgical laser fiber may be used with Thulium Fiber Lasers, or may be adapted for use with both Thulium Fiber Lasers and Holmium YAG lasers.

A removable cap for an endoscope used with a surgical laser to improve the stone free rate (SFR) of lithotripsy procedures. The removable cap includes a filter configured to block or filter light of a wavelength like a wavelength of light from an aiming beam generated by the surgical laser.

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.

Apparatus and techniques described herein can include delivery of a surgical laser beam for tissue excision or to facilitate hemostasis. The surgical laser beam can be generated, for example, using an ultrafast laser source. Such an approach can provide non-invasive treatment in relation to, for example, aerodigestive anatomy, such as for treatment of laryngeal, oropharyngeal, bronchial, and oral cavity tissues. Other generally available laser sources and their associated treatments may present various drawbacks making them less suitable for treatment for laryngeal, pharyngeal or bronchial pathologies, and use of the apparatus and techniques described herein can address such drawbacks.

A method implemented in an ophthalmic surgical laser system for forming a corneal flap in a patient's eye with improved bubble management. The flap includes a horizontal bed and a vertical or near vertical side cut around the periphery of the bed except for an uncut hinge area. The side cut has a bubble barrier layer that can prevent bubbles formed by the laser-tissue interaction from escaping into an interface between the corneal and the patient interface lens. In some embodiments, the bubble barrier layer is a thin uncut layer, located in the epithelium of the cornea, that separates the side cut into two portions. In other embodiments, the side cut does not reach the anterior corneal surface, leaving an uncut bubble barrier layer located with the epithelium. In other embodiments, an additional side cut portion is formed through the uncut bubble barrier layer as the last step.

A method implemented in an ophthalmic surgical laser system for forming a corneal flap in a patient's eye with improved bubble management. The flap includes a horizontal bed and a vertical or near vertical side cut around the periphery of the bed except for an uncut hinge area. The side cut has a bubble barrier layer that can prevent bubbles formed by the laser-tissue interaction from escaping into an interface between the corneal and the patient interface lens. In some embodiments, the bubble barrier layer is a thin uncut layer, located in the epithelium of the cornea, that separates the side cut into two portions. In other embodiments, the side cut does not reach the anterior corneal surface, leaving an uncut bubble barrier layer located with the epithelium. In other embodiments, an additional side cut portion is formed through the uncut bubble barrier layer as the last step.

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.

Systems, devices, and methods are disclosed for providing adjustable laser therapy of a target using fiber-to-target distance measurements. An exemplary surgical laser system includes a laser system to generate laser pulses and deliver the laser pulses to an anatomical target via an optical fiber; a feedback analyzer circuit for receiving a return laser signal in response to the chirp laser irradiated at the target; and a controller circuit. The feedback analyzer circuit may generate an optical coherence metric using the chirp laser and the return laser signal and determine a fiber-to-target distance between the distal end of the optical fiber and the target. Based at least on the fiber-to-target distance, the controller circuit may adjust a position or orientation of the distal end of the fiber, or adjust a surgical laser output setting for generating and delivering a laser pulse to the target.