68 results about "Surgical lasers" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

A method for providing control data for an eye surgical laser is disclosed. A control device ascertains a lenticule geometry of a lenticule to be separated from predetermined visual disorder data of a human or animal eye. The control device ascertains a correction value for compensating for a deformation of the lenticule, which is generated by at least one contact element of the treatment apparatus. The control device ascertains a deformation geometry of the lenticule, wherein a deformation refractive power value is calculated depending on the refractive power value to be corrected and the correction value. A deformation diameter is calculated depending on a lenticule diameter and the correction value. The control device provides control data for controlling the eye surgical laser, which uses the deformation geometry for the separation of the lenticule.

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.

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.

The present invention relates to a surgical laser system for cutting hard tissue on an object (19), comprising a hand-guidable laser applicator (18), a collaborative robot (34) having a robot arm (36) to which the hand-guidable laser applicator (18) is fastened, a navigation system (41) by means of which a respective current position of the laser applicator (18) relative to the object (19) can be detected, and a controller (42) for the collaborative robot (34). The laser applicator (18) has a measuring device (7) by means of which a cutting depth of a kerf produced by a machining laser beam (2) and a residual thickness of the hard tissue in the kerf can be measured. While the cut is being made, the controller (42) controls the collaborative robot (34) on the basis of data of the navigation system (41) and the measuring device (7) in such a way that the collaborative robot, via the robot arm (36), maintains a cutting distance, required for cutting, of the laser applicator (18) from the object (19), and allows an advancing movement of the laser applicator (18) along a cutting line by the surgeon to be carried out only when a cut that has just been made has been completed.

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.

1. The name of the design product: laser treatment graphical user interface for electronic equipment. 2. The use of the design product: for an electronic device. 3. The design features of the design product: the graphical user interface content. 4. The picture or photo that best shows the design features: front view. 5. The design product is a flat product, and other views are omitted. 6. The use of the graphical user interface: the graphical user interface of the product is used for the laser treatment user interface display of the ophthalmic treatment electronic equipment, with functions such as laser monitoring, laser parameter adjustment, and detection of real-time treatment status. 7. The area of the graphical user interface in the product: located on the display screen of the ophthalmic treatment electronic equipment. 8. The human-computer interaction mode of the graphical user interface: the interface presents information and functions through visual elements such as graphics, images, and icons, and users can interact with the interface through input devices such as foot pedals, mice, keyboards, and touch screens. 9. Explanation of the change state of the graphical user interface: the front view is the main page of the surgical laser scanning of the ophthalmic femtosecond device information auxiliary large screen, when the doctor steps on the foot pedal connected to the machine, the machine will start laser scanning and perform scanning treatment on the eyeball, at this time the front view will enter the interface of change state figure 1, the interface of change state figure 1 displays the operation information, mainly displays the real-time operation objective camera view and the operation parameters, and displays the real-time operation negative pressure state and the operation progress; when the negative pressure contact lens that sucks the human eye loses suction during the operation process, the operation changes to change state figure 1 interface and enters change state figure 2 interface to adjust the parameters, clicks "next" to return to change state figure 1 interface to continue the operation, if the user finishes the operation, it will jump to change state figure 3, which is the report preview interface after the operation is completed, clicks the "operation complete" button displayed in change state figure 3 to end the operation.

The application belongs to the technical field of laser surgery, and specifically discloses a laser surgery positioning method, system and program product for path widening and overlap removal. The method can greatly improve the efficiency and accuracy of laser surgery by performing path construction, path widening and overlap removal processing on the continuous path points in the surgery area collected by the robot automation. The method ensures the non-overlapping path widening area through a fine overlap removal mechanism, effectively improving the accuracy and safety of laser surgery path positioning. The method can flexibly adjust the path widening and splitting degree according to the requirements of laser surgery to meet the accuracy requirements in different laser surgery scenarios. The method can automatically generate a standard format laser surgery coordinate positioning file, improving the system compatibility and clinical operation convenience. The application has the ability of automatic collection and splitting of laser surgery path, accurate widening and overlap removal of path, and standardized positioning output, and can realize efficient processing and accurate control of the robot-assisted laser surgery path.

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.

An ophthalmic surgical laser system includes: a laser that produces a pulsed laser beam having a pulse energy and pulse repetition rate; a high frequency fast scanner; an XY-scan device; a Z-scan device; and a controller. The controller controls the high frequency scanner to produce a scan line having a scan width; controls the XY-scan device and the Z-scan device to carry out of first sweep of the scan line in a first sweep direction and to carry out a second sweep of the scan line in a second sweep direction that is not parallel to the first sweep direction thereby defining an overlap region. At least one of the pulse energy, repetition rate, XY-scan speed, and the scan width is varied so as to accelerate the cutting speed and reduce the exposure of ophthalmic tissue in the overlap region to multiple exposures of laser pulses configured to modify ophthalmic tissue.

The application provides a center positioning system for femtosecond laser ophthalmic corneal refractive surgery, which comprises an iris recognition component, a central processing component and a real-time display component, the iris recognition component is used for converting a real-time image of a patient into a digital image; the central processing component is electrically connected with the iris recognition component, and the central processing component is used for converting the digital image into an iris simulation image with a size equal to that of a pre-recorded patient examination iris image; the real-time display component is electrically connected with the central processing component, is used for receiving the iris simulation image transmitted by the central processing component, and presents the iris information transmitted by the central processing component in real time. Meanwhile, a center positioning method is also provided, which takes the corneal vertex as the center, calculates the self-rotation angle of a treated eye of a patient by comparing the image angle difference between the iris simulation image and the pre-recorded real-time image, improves the positioning accuracy, significantly reduces the residual myopia and astigmatism, and improves the safety of the ophthalmic femtosecond laser surgery.

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, in a specific case, 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.

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.

The utility model relates to the technical field of goggles, in particular to a turnover ophthalmology laser operation goggle which comprises a long-strip-shaped supporting frame, first blocking parts are arranged at the two ends of the supporting frame, and a second blocking part is arranged in the middle of the supporting frame; the first blocking part and the second blocking part form a placing groove for placing an ophthalmic operation microscope eyepiece; the fixing part is arranged on the support frame and is used for fixing the support frame on the ocular lens of the ophthalmologic operation microscope; the protective lens is hinged to the supporting frame through the connecting part. The ophthalmic laser operation goggles can be accurately placed on an eyepiece of a microscope through the placing groove, and when laser protection is needed, the protective lens can be put down to block in front of the eyepiece of the microscope, so that the protective effect is achieved; when the laser protection is not needed, the surgical field can recover to the conventional light only by turning over the protective lens upwards, the operation is simple and convenient, and the operation continuity of a doctor is not influenced.

Method for providing control data for an ophthalmic surgical laser (18) of a treatment device (10), wherein the method comprises the following steps performed by a control device (20): - Determining at least one cross-sectional area (14, 16) in a cornea (26) of a human or animal eye (30), - Defining an incision path (17, 17') which extends from an outer surface of the cornea (26) to at least one of the cut surfaces (14, 16), wherein the incision path (17, 17') has at least two sections (17a, 17b, 17c) with different slope values ​​between the outer surface and the respective cut surface (14, 16), and wherein the incision path (17, 17') terminates at an obtuse angle in the respective cut surface (14, 16), - Providing control data for controlling the ophthalmic surgical laser (18) which includes at least the defined incision path (17, 17'), wherein a path profile with a minimum area is calculated in a cross-section along the optical axis of the eye to define the incision path (17, 17').

An apparatus for medical treatment includes a gonioscope having a distal face for placement in proximity to a patient's eye, a proximal face opposite the distal face, and multiple facets between the distal and proximal faces. The apparatus also includes a laser to generate a beam, a scanner to direct the beam through the proximal face of the gonioscope to reflect from a facet into an anterior chamber of the eye, at least one slit lamp to project sheets of light into the eye through the gonioscope, a camera to capture, through the gonioscope, an image of an illumination pattern cast on the eye by the sheet of light. A processor processes the image so as to identify a location of an anatomical structure in the eye, selects targets in the eye based on the identified location, and controls the scanner so that the beam impinges on the targets.

Particular embodiments disclosed herein provide a surgical laser system comprising a laser source, a lens, a memory, and a processor in data communication with the memory and configured to execute instructions that cause the processor to control the laser source based on a detection signal received from a circuit. The circuit comprises a first amplifier, a second amplifier, and a switch coupled between the second amplifier and a reference potential node, and a state of the switch is based on an output of a first comparator. The circuit further comprises a second comparator coupled to the second amplifier and a logic gate coupled to the first comparator and the second comparator.