724 results about "Laser treatment" patented technology

Disclosed in the present invention are a helium-neon laser therapy method and application based on adaptive beam focusing. The technical method belongs to the technical field of medical lasers, and realizes adaptive beam focusing optimization for helium-neon laser therapy. The process comprises: patient assessment, which involves acquiring an image and data of a treatment region; image processing and analysis, which involves performing feature extraction and lesion segmentation by using a convolutional neural network (CNN) and a U-Net algorithm; laser parameter setting based on wavefront optimization, which involves adjusting laser parameters by means of a feedback control system; therapy execution, which involves tracking and adjusting a beam in real time by means of wavefront optimization and an optical flow algorithm; result assessment and adjustment, which involves assessing a treatment effect by using the CNN and the U-Net algorithm again, and adjusting the laser parameters for repeated treatments if necessary; and finally, assessing a treatment result for the patient after the treatment is completed. The method improves the accuracy, effect and safety of treatment, and increases the degree of satisfaction of a patient.

The invention provides an ultra-pulse thulium fiber laser therapy apparatus which comprises a laser, an electrical device and a coupler, the laser is connected with the coupler through a thulium fiber, the laser and the coupler are respectively connected with the electrical device through circuits, and the electrical device is connected with the coupler through a thulium fiber. The electrical device controls the operation of the laser and the coupler, the optical fiber is a thulium optical fiber emitted by the laser, and the wavelength of the laser is 1940 nanometers. The ultra-pulse thulium fiber laser therapy apparatus replaces a previous water cooling device and adopts a 1940nm laser internal air cooling device, so that the ultra-pulse thulium fiber laser therapy apparatus is more compact in structure, lighter in weight and smaller in size, and the problems of noise, frequent maintenance and replacement and the like caused by a large cooling-water machine are solved.

The invention discloses a laser heat effect evaluation method and device, and belongs to the technical field of biology. The method comprises the following steps: acquiring an original laser speckle blood flow image sequence, and analyzing an original laser speckle image by adopting a time contrast analysis algorithm to obtain a laser speckle contrast image; and converting the laser speckle contrast image to obtain a laser speckle blood flow image. Calculating the full width at half maximum of the blood vessel in the laser speckle blood flow image as the width of the blood vessel; subtraction is conducted on the blood flow image obtained after laser irradiation and the blood flow image obtained before laser irradiation, and a difference image is obtained; blood vessels with blood flow changes due to laser irradiation are obtained according to the difference image, then a region of interest is selected, the blood flow mean value of the blood vessels before and after laser irradiation is obtained, and therefore the final laser treatment effect is evaluated. The mouse spine window 108 is irradiated from the complete skin side of the mouse spine window 108, and the blood flow change is monitored in real time on the opposite exposed blood vessel side by adopting technologies such as laser speckle blood flow imaging and the like. The influence of the upper skin tissue is considered, the blood flow change is monitored in real time, and accurate evaluation of the blood vessel laser heat effect is achieved.

Images of a patient's eye can be imaged and the images processed to detect and track floaters within the patient's eye. The floater detection and tracking can be used to identify characteristics of the floaters as well as possibly perform laser treatment of the floaters.

An interactive pain management system is provided comprising a laser treatment device and an application executing on the device that receives entry of identification information for a first patient and receives entry of a body region to receive treatment. The system also receives entry of a present pain level experienced in the body region, accesses stored information describing previously reported conditions of the first patient and based on the received entries and the accessed store information, determines a treatment regimen for the first patient. The laser treatment device executes the treatment regimen by manual administration by the first patient or a qualified technician. The system requests entry of the first patient's present condition, the condition comprising one of feeling worse, feeling better, and experiencing no change since an immediately previous treatment. Changes in the condition of the first patient are incorporated into the determination of the treatment regimen.

The invention relates to the technical field of laser medical treatment, and discloses a thulium laser emission control system and method.The system comprises a tissue feedback acquisition module, a parameter identification module, a control strategy module, a laser control module and an execution control module; according to the method, thermal response data of a target tissue under the action of laser are collected in real time, thermal parameters of the target tissue are dynamically calculated, a control target and constraint conditions are constructed based on the parameters, and a laser control parameter combination matched with the tissue state is determined and used for adjusting the output power, pulse width and frequency of a thulium laser. And real-time control and parameter updating in the laser emission process are realized. According to the invention, accurate matching of laser output parameters and tissue thermal states is realized, laser power, pulse width and frequency can be dynamically adjusted in the treatment process, the real-time performance and response capability of laser treatment are improved, and the safety, treatment effect and individual adaptability of urinary surgery are significantly enhanced.

The present disclosure provides a method and system for estimating the distance between an optical fiber end and a target. Treatments using laser and optical fiber technology require high precision to ensure that the laser is aimed at the correct target (stone, tissue, tumor, etc.) to achieve clinical objectives such as tissue ablation, coagulation, stone fragmentation, dust removal, etc. Therefore, it is important to know the distance between the target and the optical fiber end (distal end) from which the laser light is emitted, because laser treatment parameters such as energy, pulse width, laser power modulation, and / or repetition rate are often determined based on the distance from the tip of the optical fiber to the target.

A vaginal rejuvenation device includes a disposable safety shield with a support formation having an enclosure covering an entrance into a vaginal cavity. A nozzle facilitating connection to a medical vacuum generating a vacuum suction for removal of unwanted substances. The vacuum suction is generated by an air-suction utilized for cooling of a laser generator, wherein the support formation is connected to the laser air-vacuum cooling system. An air filter is provided for catching and storing the unwanted air-borne substances produced during vaginal laser treatment.

The present invention discloses a multi-wavelength tunable laser and sensing system, which relates to the field of lasers and includes: a setting module for presetting or selecting two wavelengths of laser beams in the laser; a camera module for collecting the user's target skin surface image for treatment in real time, identifying the tumor area and the healthy skin area in the image data, and identifying the current skin surface position of the laser beam. The present invention identifies the tumor area and the healthy skin area in the operation data by collecting the user's target skin surface image for treatment, further plans the laser treatment path based on the target skin surface image, and controls the laser in the process of moving according to the treatment path, in combination with the sensor to sense the tumor thickness, so as to achieve further intelligent control of the movement speed of the laser in the process of moving according to the treatment path, so that the tumor position on the user's skin surface can be treated more adaptively.

Images of a patient's eye can be imaged and the images processed to detect and track floaters within the patient's eye. The floater detection and tracking can be used to identify characteristics of the floaters as well as possibly perform laser treatment of the floaters.

Systems, devices, and methods for treating a glaucomatous eye are provided. An amount of pulsed laser energy is delivered to the pars plana of the eye by a hand-holdable device which comprises a hand-holdable elongate member and a contact member disposed on an end of the elongate member. A contact surface of the contact member is placed in direct contact with the eye so that a reference edge of the contact member aligns with the limbus and a treatment axis defined by the elongate member is angularly offset from the optical axis of the eye. The amount of pulsed laser energy delivered is insufficient to effect therapeutic photocoagulation but is sufficient to increase uveoscleral outflow so as to maintain a reduction from pre-laser treatment intraocular pressure. Amounts of pulsed laser energy will be transmitted to a circumferential series of tissue regions of the eye.

Instrument tray for dental chair with integrated laser therapy device comprising a support platform (1) and a retaining rim arranged at the periphery of the support platform (1), characterized in that a main unit of the laser therapy device (2) is arranged below the support platform (1).

The invention relates to the field of data processing, in particular to a data processing method and system of a thulium laser treatment device. The method comprises the following steps: acquiring a laser data time sequence and a biological reflection data time sequence; dividing the laser data time sequence and the biological reflection data time sequence into a plurality of laser data segments and a plurality of biological reflection data segments respectively; setting a plurality of preset layer numbers, setting the decomposition layer number of a wavelet filtering algorithm as the preset layer number, and carrying out filtering processing on the laser data segment to obtain a denoised data segment; the denoising credibility of the preset number of layers is calculated, and the denoising credibility is positively correlated with the signal-to-noise splitting degree and negatively correlated with the information loss degree; and selecting the denoised data segments obtained by the preset number of layers with the maximum denoising credibility as final denoised data segments, and splicing all the final denoised data segments into a final denoised time sequence. The denoising accuracy is improved by setting a proper number of decomposition layers.

The utility model belongs to the technical field of medical instruments, and particularly relates to a cooling and analgesia device capable of being folded in a partitioned mode in a laser therapy operation, which is mainly used for cold compress of the face of a patient in the laser therapy operation. The device mainly comprises a flexible substrate which is provided with a hollow area; at least one side of each cold compress unit is connected with the flexible base layer, and the cold compress units are all located in the hollow area, so that the hollow area is covered with the cold compress units; wherein the cold compress unit is constructed to be capable of being folded relative to the flexible base layer, so that a part of the hollow area is exposed; the face cold compress device has the advantages that face cold compress is conducted on a patient in real time in an operation, so that the pain of the patient is relieved, and postoperative vesicles and hyperpigmentation are prevented.

A process for producing gaskets with an improved channel for use in matched syringe and plunger systems, preferably prefilled plastic syringe systems. In particular, an improved process for making and inspecting continuous channels in a gasket film by laser treatment. The gaskets are useful in matched syringe and plunger systems with high and consistent container closure integrity (CCI), and consistent break loose and glide forces over time, and sealability.

The invention relates to a method for providing control data for an ophthalmic laser (12) of a treatment device (10).The procedure comprises the following steps: determining a preoperative corneal thickness profile (24) of a cornea (16) of a human or animal eye from predetermined examination data; determining a target corneal thickness profile (26) of the cornea (16), wherein at least one corneal thickness of the target corneal thickness profile (26) is set to a predetermined corneal thickness value (28) present at at least one predetermined position of the preoperative corneal thickness profile (24); determining tissue removal data to generate the target corneal thickness profile (26), wherein in the tissue removal data only tissue (14) at positions between the preoperative corneal thickness profile (24) and the target corneal thickness profile (26) is defined as tissue (14) to be removed; and providing control data for controlling the ophthalmic laser (12), which includes the tissue removal data.

The utility model relates to a 308 excimer laser therapeutic instrument, which comprises a shell, a lamp panel and a heat dissipation fan, and comprises an upper shell, a middle shell and a lower shell which are sequentially arranged along the vertical direction, the upper shell is provided with an air inlet group, the air inlet group comprises a plurality of air inlets distributed in an array, an accommodating cavity is formed between the middle shell and the lower shell, the middle shell is provided with an air inlet channel corresponding to the air inlet group, and the air inlet channel is communicated with the accommodating cavity. The lower shell is provided with an irradiation window corresponding to the air inlet channel, and the irradiation window is provided with at least one heat dissipation grid; the lamp panel is arranged in the irradiation window; the cooling fan is arranged in the containing cavity and corresponds to the air inlet channel. According to the heat dissipation fan, air is fed into the heat dissipation fan through the multiple air inlet holes and the air inlet channel, meanwhile, the heat dissipation fan blows air to the lamp panel, and air flow is blocked by the lamp panel and exhausted from the heat dissipation grid. Therefore, air circulation can be carried out on the irradiation window, heat generated by the lamp panel can be rapidly taken away by airflow, heat dissipation of the lamp panel is achieved, and normal operation of the lamp panel is guaranteed.

The invention discloses an AI-based multi-disease chronic disease information intelligent management system, and relates to the technical field of medical information, and the system is provided with a laser response capture module and a multi-dimensional data processing module, and can collect an RGB image data set and an infrared thermogram data set of a skin area at a set time point after laser treatment, and can obtain an RGB image data set and an infrared thermogram data set; and performing standardization processing and white spot region segmentation on the image based on an AI image processing model, and further extracting morphological parameters such as area, edge curvature kurtosis and tangential direction disturbance of the white spots and thermal parameters such as a temperature gradient recovery value, temperature change curvature and regional heat flux density. According to the system, a structural convergence tension index STCI and a thermal response consistency mapping index HRCI are calculated through cooperative work of a structural convergence analysis module and a thermal recovery analysis module, the skin response process is comprehensively measured from the two dimensions of structure and thermal power, and the problem of inaccurate evaluation caused by traditional visual observation and subjective judgment is effectively solved.

The invention provides a high-power optical fiber laser treatment system which comprises a rack body, a signal control module, a treatment scheme management module, a signal driving module, an optical fiber laser assembly and a constant temperature control module. The signal control module, the treatment scheme management module, the signal driving module, the optical fiber laser assembly and the constant temperature control module are all installed on the machine frame body, and the optical fiber laser assembly comprises a semiconductor pump laser, a thulium-doped optical fiber, a coupler, a transmission optical fiber and an aspherical lens. The semiconductor pump laser, the thulium-doped optical fiber, the coupler and the transmission optical fiber are in light path connection, the central axes of the semiconductor pump laser, the coupler, the thulium-doped optical fiber, the transmission optical fiber and the aspherical lens coincide, the therapeutic scheme management module is in communication connection with the signal control module, and the signal driving module is in communication connection with the signal control module. The semiconductor pump laser is in communication connection with the signal driving module, and the constant temperature control module is in communication connection with the signal control module and the fiber laser assembly.

The utility model provides an ultra-pulse thulium fiber laser therapy apparatus, which comprises a laser, an electrical device and a coupler, the laser is connected with the coupler through a thulium fiber, the laser and the coupler are respectively connected with the electrical device through a circuit, and the electrical device is connected with the coupler through a thulium fiber. The electrical device controls the operation of the laser and the coupler, the optical fiber is a thulium optical fiber emitted by the laser, and the wavelength of the laser is 1940 nanometers. The ultra-pulse thulium fiber laser therapy apparatus replaces a previous water cooling device and adopts a 1940nm laser internal air cooling device, so that the ultra-pulse thulium fiber laser therapy apparatus is more compact in structure, lighter in weight and smaller in size, and the problems of noise, frequent maintenance and replacement and the like caused by a large cooling-water machine are solved.

The invention discloses a preparation method for obtaining a high-toughness joint through femtosecond laser treatment of nickel-based superalloy, and relates to the technical field of welding. The method comprises the following steps: pretreating the surfaces of two nickel-based high-temperature alloys to be welded; femtosecond laser treatment parameters are set, and femtosecond laser is adopted to conduct scanning treatment on the surfaces of the two pretreated nickel-based high-temperature alloys; and welding the two nickel-based high-temperature alloys subjected to femtosecond laser treatment by adopting TLP diffusion welding, and obtaining the high-toughness welding joint after welding is completed. According to the method, the optimal surface wettability of the nickel-based superalloy is obtained through femtosecond laser, melting reduction elements (such as B and Si) are diffused to the high-temperature nickel-based superalloy more quickly, the brittle phase of a connector is eliminated more quickly, the good connection effect is achieved at the low pressure and temperature through TLP diffusion welding, and compared with a traditional welding method, the welding defects can be effectively reduced, and the welding quality is improved. And the quality and performance of the joint are improved.

The utility model relates to the technical field of acne treatment devices, and discloses a portable acne treatment device which comprises a laser treatment head, a probe is fixedly connected to the position, close to the middle point, of the front end face of the laser treatment head, a sleeve is fixedly connected to the position, close to the middle point, of the outer side of the probe in a sleeved mode, and a sliding rod is slidably connected to the position, close to the front end, of the probe. And the front end of the sliding rod is fixedly connected with a moving ring. After the face is attached to the movable ring, the movable ring drives the sliding rod to move, then the annular block drives the electric connection block to move and is matched with the reset spring, the first wiring block and the second wiring block, and after the front end of the probe is attached to the acne part, the laser treatment head is connected with a circuit and is in a starting state; and when the front end of the probe is separated from the acne part, the laser treatment head is disconnected from the circuit, so that the potential safety hazard of the laser treatment head facing other parts of the human body when the laser treatment head is started is solved, and the use safety of the acne treatment device is improved.

The invention discloses a high-entropy alloy and a preparation method thereof. The method comprises the following steps: synthesizing a ZIF-8 material by adopting a hydrothermal method; the ZIF-8 material and metal salt are mixed and dispersed in a solvent, and a high-entropy ZIFs precursor is obtained through post-treatment; the high-entropy ZIFs precursor is dissolved in a solvent, and then the mixture is dispensed to the surface of a substrate and dried; and the dried substrate is transferred into a container for laser treatment, and the high-entropy alloy is obtained. The high-entropy alloy is prepared by carrying out laser treatment on the high-entropy ZIFs precursor, the method is simple, the reaction condition is mild, the cost is low, the reaction is rapid and efficient, the method is environmentally friendly and free of pollution, and synthesis of the high-load high-entropy alloy on any material substrate under the normal-temperature and normal-pressure environment is achieved.

The invention relates to the technical field of medical robots, in particular to a laser treatment auxiliary robot and an auxiliary method thereof, and the method comprises the following steps: scanning a motion area, and obtaining obstacle detection records by calculating point cloud density, boundary form and curvature change parameters and identifying obstacles in the motion area. According to the method, through multi-layer point cloud scanning, the recognition precision of the mechanical arm on the obstacles in the movement area is optimized, the space sensing capacity is improved, the real-time data of the joint torque sensor are combined, the accuracy of collision risk assessment is enhanced, the speed and torque are dynamically adjusted, and the movement safety and stability are improved; according to the method, treatment starting coordinates are extracted by adopting tissue deformation in unit time, a surface curvature change value and a boundary shortest distance, the matching degree of a treatment area is improved, laser treatment is more accurate, a motion path is optimized by combining a surface geometrical shape and real-time operation feedback, trajectory mutation is reduced, and safety and consistency of a treatment process are improved.

The invention discloses an unsealing analysis method for an integrated circuit, which comprises the following steps of: 1, confirming a laser area: putting the integrated circuit into a laser machine table, importing an X-ray diagram into operation software of the laser machine table, and dragging the X-ray diagram to coincide with a back image of the integrated circuit; and step 2, removing the plastic package body by laser: positioning a laser area of the integrated circuit and carrying out laser treatment until the base is exposed, and forming an integrated circuit groove on the back surface of the integrated circuit at the same time. The invention belongs to the field of semiconductor integrated circuits, and particularly relates to an unsealing analysis method of an integrated circuit. According to the method, the back unsealing area of the integrated circuit is accurately positioned through the laser machine table and the sample X-ray diagram, and the problem that welding spots on a base are not electrically connected due to the fact that the chip base is removed through a traditional method is effectively solved, so that hot spot analysis can be effectively carried out, and the laboratory analysis capability is improved.

The invention provides a laser therapeutic instrument and a control circuit and method thereof. The laser therapeutic instrument comprises a laser, a microcontroller in communication connection with the laser and an optical shutter motor used for driving an optical shutter of the laser to be opened and closed, the control circuit comprises an on-off module and a driving module, and the on-off module is controlled by a control signal to be turned on or turned off so as to output an on-off signal; the control signal is output by the microcontroller based on the number of preheating laser pulses, the opening time of the optical shutter and the state of the laser; the driving module is used for configuring the voltage of an optical shutter motor control signal according to the turn-on or turn-off of the on-off module, and the optical shutter motor control signal is used for turning on or turning off the optical shutter motor. The laser shutter can be opened after the laser is preheated, so that the laser pulse emitted into the dot matrix scanning handle is uniform and stable, and the consistency of laser pulse energy in the treatment process is ensured.

The invention relates to the field of laser medical instruments, and discloses a spectrum detection-based multi-wavelength optical fiber laser treatment diagnostic machine, which comprises a power supply system, a laser module, a spectrum identification module, a control system, a display operation system and an optical fiber for coupling laser, and the power supply system is respectively connected with the laser module and the spectrum identification module. A treatment and feedback shared optical path structure is adopted, and coaxial transmission of high-power treatment laser and weak biological spectrum signals in the same optical fiber is realized by using an optical signal separation unit. Compared with a traditional technical scheme of an external independent probe, the structure does not need to add an additional intervention detection part, not only simplifies a handheld end operation mechanism, but also ensures that a spectrum collection view field and a laser thermal action area are highly overlapped in space, and the detection accuracy is improved. Therefore, the real biological physicochemical characteristics of the target tissue in the treatment process can be obtained in real time and in situ, and the judgment error caused by the deviation of the detection position is eliminated.

The present disclosure relates to an ophthalmic laser system for performing laser treatments of an eye. The laser system includes a base, which houses a laser source of the laser system. The system further includes a laser applicator, which comprises an optical system through which the treatment laser beam exits the laser applicator in a direction towards the patient's eye and a supporting arm. The supporting arm is connected to the laser applicator at a first end of the supporting arm and a second end of the supporting arm is connected to the base. The supporting arm is configured so that the laser applicator is positionable relative to the base in three dimensions. The laser system further comprises a motorized three-axis positioning system, which is operatively coupled to the controller for positioning the laser applicator relative to at least a portion of the supporting arm in three dimensions.

There is provided a process for treatment of rhinitis by diode laser ablation of the branches of the posterior nasal nerve. The diode laser delivery device with elongated fiber optic with its fiber tip is inserted through a patient's nostril and has the length, flexibility and a curvature to reach both above and under the patient's middle turbinate for treatment of both branches of the posterior nasal nerves. Skin and tissue temperature is raised to approximately 60-70° C. with the process. A control knob on the laser delivery device moves from a first to a second position to move a camera attached to the laser delivery device. The fiber optic includes a distal fiber tip extending from a malleable sheath connected to the body for delivering light energy to a treatment area.

The invention provides a solar cell, a preparation method thereof and a power utilization device, and the preparation method comprises the following steps: providing a substrate of a first conductive type, the substrate having a first surface and a second surface opposite to the first surface; preparing a tunneling oxide material layer and an intrinsic polycrystalline silicon material layer which are laminated on the first surface, diffusing a doped material to the intrinsic polycrystalline silicon material, and preparing a doped polycrystalline silicon material layer with a second conduction type; forming a mask layer on the second surface, and performing laser processing on the partially doped polycrystalline silicon material layer to prepare a first prefabricated structure; and the first prefabricated structure is sequentially placed in a first corrosive liquid and a second corrosive liquid to be subjected to first corrosion treatment and second corrosion treatment correspondingly. According to the invention, the doped polycrystalline silicon material and the amorphous glass layer on the preset first conductive type doped region are loosened by utilizing laser treatment, and two times of corrosion treatment are matched, so that an engraving effect with depth and flatness is realized on the doped region, and the electrical property of the solar cell is improved.