67 results about "Laser scalpel" patented technology

A surgical technique for removing corneal tissue with scanned infrared radiation is disclosed which utilizes short mid-infrared laser pulses to provide a tissue removal mechanism based on photospallation. Photospallation is a photomechanical ablation mechanism which results from the absorption of incident radiation by the corneal tissue. Since photospallation is a mechanical ablation process, very little heat is generated in the unablated adjacent tissue. The disclosed surgical system includes a scanning beam delivery system which allows uniform irradiation of the treatment region and utilizes low energy outputs to achieve controlled tissue removal. A real-time servo-controlled dynamic eye tracker, based on a multiple-detector arrangement, is also disclosed which senses the motion of the eye and provides signals that are proportional to the errors in the lateral alignment of the eye relative to the axis of the laser beam. Temporal and frequency discrimination are preferably utilized to distinguish the tracking illumination from the ambient illumination and the surgical laser beam. A laser parametric generator for surgical applications is disclosed which utilizes short-pulse, mid-infrared radiation. The mid-infrared radiation may be produced by a pump laser source, such as a neodymium-doped laser, which is parametrically down converted in a suitable nonlinear crystal to the desired mid-infrared range. The short pulses reduce unwanted thermal effects and changes in adjacent tissue to potentially submicron-levels. The parametrically converted radiation source preferably produces pulse durations shorter than 25 ns at or near 3.0 microns but preferably close to the water absorption maximum associated with the tissue. The down-conversion to the desired mid-infrared wavelength is preferably produced by a nonlinear crystal such as KTP or its isomorphs. In one embodiment, a non-critically phased-matched crystal is utilized to shift the wavelength from a near-infrared laser source emitting at or around 880 to 900 nm to the desired 2.9-3.0 microns wavelength range. A fiber, fiber bundle or another waveguide means utilized to separate the pump laser from the optical parametric oscillation (OPO) cavity is also included as part of the invention.

Surgical method and apparatus for presbyopia correction and glaucoma by laser removal a portion of the sclera and / or ciliary tissue are disclosed. The disclosed preferred embodiments of the system consists of a beam spot controller, an articulated arm and an attached end-piece. The basic laser beam includes UV laser having wavelength ranges of (0.19-0.36) microns, generated from UV excimer lasers of ArF, XeCl or solid state lasers of Nd:YLF, Nd:YAG, Ti:sapphire with harmonic generation using nonlinear crystals. Presbyopia is treated by ablation of the treated surface tissue in predetermined patterns outside the limbus to increase the accommodation of the eye. Glaucoma is treated by decreasing of intra ocular pressure of the laser surgery.

A method and device for flapless, intrastromal keratomileusis for the correction of myopia, hyperopia and astigmatism, i.e., for vision correction by corneal reshaping without creating a flap. Ultra-short laser pulses are used to create a temporary micro-channel extending to an end point located within the cornea. A second series of ultra-short laser pulses are then delivered to photo-ablate material in the vicinity of the micro-channel end-point. The photo-ablated material may exit through the micro-channel used to deliver the laser pulses, or via a separate micro-channel. With the micro-channel oriented substantially normal to the optical axis of the cornea, and by continuing to supply the ultra-short laser pulses in the appropriate number while moving the point of ablation along the micro-channel, the photo-ablation of the intrastromal tissue may continue in a controlled fashion and the cornea reshaped in a predetermined manner without creating a flap.

A laser tip, and method for the use thereof, is described for utilization in medical and dental applications. Specifically, a tip with an increased photoacoustic wave emission capability is formed by beveling the tip and further enhanced by stripping the adjacent sheath. Preferably, this conic and / or stripped tip section is surface modified, for example, by texturing, derivatization or metalization. In the field of endodontics the tip is inserted into a solution that has been introduced into a root canal and the pulsed laser is fired. The resulting generation of an enhanced photoacoustic wave propagates through the solution. These photoacoustic waves turbulently clean the interior of the root and lateral canal systems and / or causes cell lysis and dissolution of inorganics in biotic systems.

The present invention relates to a method and apparatus for laser-based surgery and treatment, in particular of the human body. Inter alia, the present disclosure teaches an apparatus having a femtosecond laser that emits at least one pulse of laser energy having a pulse duration of less than 100 femtoseconds and a fiber optical channel for conducting said emitted pulse of laser energy to a vicinity of a human body to irradiate a localized area of said human body to effect at least one of microsurgery, neurosurgery, treatment of cardiovascular disease, treatment of the skin, tissue removal for biopsy, cutting of a mucous membrane, disintegration or vaporization of a gallstone or a kidney stone, and orthopedic surgery.

Focused infrared light may be used in a non-invasive varicose vein treatment procedure with infrared light from a plurality of laser diodes that are combined in a multiplexer and coupled to a multi-mode fiber coupled to another fiber or fiber bundle that delivers the light to a lens / mirror assembly for application in the non-invasive procedures. The wavelength of light may be selected near 980 nm, 1210 nm, or 1720 nm to achieve a desired penetration depth and / or for absorption in a particular tissue type or water. Wavelengths near approximately 1100 nm, 1310 nm or 1650 nm may be advantageous for non-invasive procedures through the skin. The light may be focused with lower intensity on the skin or outer tissue to reduce collateral damage and higher intensity at a desired depth to induce thermal coagulation or occlusion at depths of about 1-2 mm or more. Surface cooling techniques, such as cryogenic sprays or contact cooling may be provided.

The invention discloses a method for extracting the bolt hole characteristic data on the basis of a three-dimensional laser scanner and is used for measuring the characteristic data of a bolt hole on a steel structure. The method comprises steps that step 1, a radius and the height data of a to-be-measured bolt hole are measured, a spherical target is fixed in the to-be-measured bolt hole, and one end of the bolt hole contacts the spherical target; step 2, the three-dimensional laser scanner is utilized to carry out panorama scanning of the to-be-measured bolt hole and the spherical target, and the point cloud data of a surface of the spherical target is acquired; step 3, the point cloud data acquired in the step 2 is processed to acquire a three-dimensional coordinate of a center point of the spherical target, and a three-dimensional coordinate of a center point of the bolt hole can be acquired through calculation according to the three-dimensional coordinate of the center point of the spherical target. The method is advantaged in that the three-dimensional coordinate of the center point of the bolt hole is improved in an aspect of fitting precision compared with the traditional direct point cloud data, and thereby the reliable measurement data is provided for virtual pre-splicing of the steel structure realizing connection through a bolt.

The invention discloses a laser induced breakdown spectroscopy (LIBS)-based dangerous waste detection system. The system comprises a computer, a digital delay pulse generator, a spectrometer, a laser,a displacement workbench, a high reflective mirror, a first focusing lens and a second focusing lens; the LIBS technology takes a laser as a plasma light source, characteristic spectrum and spectraldata transmitted in the high-temperature plasma cooling process are detected and processed, and analysis on the elemental composition and the content of the substances is realized. The system performsdeep analysis on the formation principle and the plasma spectral radiation mechanism of the laser induced plasma and builds a set of LIBS detection experimental system platform. LIBS experiment parameters are selected and optimized, a relation curve of different laser pulse energy, sample vertical displacement and C element spectral intensity is established, and optimal laser pulse energy and distance from a lens to the surface of the sample are determined.

A device is provided for improved surgical procedures to remove unwanted or hyperplasic tissue from a patient. In particular, laser ablation, urological treatments, benign prostatic hyperplasia treatments and other applications benefit from the device. Specially prepared optical waveguide tips allow for enhanced irradiation of desired tissues with light sources including laser diodes, bright LEDs or lamps. The refractive indices of the waveguide materials and the surrounding medium are such that a significant fraction of the optical radiation, being transported in the waveguide, is coupled out of the waveguide into the surrounding medium through a peripheral surface at or near the distal end.; The optical radiation is chosen to have an appropriate wavelength and sufficient power density, so that the surrounding medium will be changed in the vicinity of at least a part of the peripheral surface area. The changes of the surrounding medium result in a change of its refractive index such that the optical radiation is redirected. Device is particularly useful for treatments within a patient where entry and / or treatment space is limited / restricted.

The invention belongs to the field of medical instruments, and particularly relates to a hard laser cystoscope system, which comprises a hard cystoscope, a cold light source host, a camera shooting host and a monitor. The cold light source host, the camera shooting host and the monitor are connected with the hard cystoscope, and the hard cystoscope is further provided with a laser scalpel operating device used for treatment and a laser scalpel system host used with the laser scalpel operating device. The hard laser cystoscope system organically combines cystoscope technology with laser technology, can be specifically divided into a separating mode and an integral mode. As the laser scalpel technology has ability of generating high energy and realizing highly focusing within a short time, laser with suitable wavelengths is selected according to properties of lesions, and treatment methods include that tumor in a bladder of a patient is incised and irradiated, blood of wounds is stopped and the like are realized. The advanced laser scalpel technology is led into cystoscope surgery, and the advanced laser scalpel technology and the cystoscope surgery are organically designed and combined, so that diagnosis of the cystoscope and a laser treatment effect are combined. By the aid of characteristics that incisions of a laser scalpel are smooth, bleeding is low and infection is not easy, surgery recovery rate and accuracy are effectively improved, recurrence rate is reduced, medical quality and medical safety are improved, and unexpected diagnosis and treatment effects are obtained.

The invention provides a laser scalpel, comprising a scalpel head which comprises a scalpel head body, energy transmission optical fiber and a light-beam emission angle control unit. The scalpel head body is used to support the energy transmission optical fiber and the light-beam emission angle control unit, wherein the energy transmission optical fiber comprises an emitting end face, and the light-beam emission angle control unit comprises tail optical fiber, a tail optical fiber emission end face and a reflecting face mirror. The reflecting face mirror and the emission end face are arranged relatively to form a certain angle, and a three dimensional micro-nano structure is arranged on at least one of the surfaces of the reflecting face mirror or tail optical fiber emission end face.

The invention belongs to the field of medical appliances, and particularly relates to a rigid laser hysteroscope system. The rigid laser hysteroscope system comprises a rigid hysteroscope as well as a cold light source host machine, a camera host machine and a monitor, wherein the cold light source host machine, the camera host machine and the monitor are connected with the rigid hysteroscope; and the rigid hysteroscope is provided with a laser scalpel operation device for cooperating with treatment and a laser scalpel system host machine matched with the laser scalpel operation device. The rigid laser hysteroscope system organically combines a hysteroscopy technology and a laser technology, and can be divided into a split type and an integrated type particularly. Because the laser scalpel technology has the capacity of generating high energy and realizing high order focusing, the function of treating various pathological changes in the cavity of uterus can be achieved by selecting laser with adaptive wavelength according to the property of pathological changes. The advanced laser scalpel technology is introduced into a hysteroscope operation, so that the characteristics, such as smooth cut, less bleeding and infection prevention, of the laser scalpel are utilized to serve the hysteroscope operation to superpose the diagnosis technology of the hysteroscope and the treatment effect of laser, the cure rate and accuracy of operation can be effectively improved, the relapse rate is reduced, the medical quality and medical safety are improved, and unexpected diagnosis and treatment effects can be achieved.

The invention discloses a high-hemostatic performance laser scalpel. The high-hemostatic performance laser scalpel uses at least two laser sources, with one laser source as a cutting laser source and the other laser source as a hemostatic laser source; laser pulse waveform output by the hemostatic laser source can be programmably controlled by programmably controlling driving current of the hemostatic laser source so as to achieve the optimal hemostatic effect; output laser of the at least two laser sources can be coupled into a single laser beam outputting device by a laser beam synthesizing unit; laser parameters of the at least two laser sources are independent mutually and adjustable; the cutting laser source can be a pulsed or continuous laser source, the laser pulse waveform of the pulsed cutting laser source can be programmably controlled, and the output of the continuous laser source can be modulated so as to achieve the optimal cutting effect. The laser scalpel with excellent hemostatic performance can also use only one laser source, and achieves the optimal cutting and hemostatic effect at the same time through programmable control over the laser pulse waveform of the laser source.

The invention provides a laser scalpel device, which comprises a laser light source, an optical fiber, a coupling mirror and a tool bit, wherein the laser light source is used for outputting laser light; the coupling mirror is positioned on a laser light transmission light path, and is used for refracting and converging the laser light; one end of the optical fiber is positioned at the focal point of the coupling mirror, and is used for transmitting laser light; the tool bit has a hollow structure; one end of the tool bit is opened, and the other end of the tool bit is enclosed; the other end of the optical fiber passes through the open port of the tool bit, and is positioned in the hollow cavity of the tool bit; and a laser light absorption medium is filled between the other end of the optical fiber and the enclosed end of the tool bit, and is used for converting absorbed laser light energy into heat energy and transmitting the heat energy to the tool bit. Due to the adoption of the laser scalpel device provided by the invention, the problem of wound surface unevenness caused by direct irradiation of laser light on cutting tissues in the prior art is solved, and the matching dependence of laser wave length on a tissue absorption spectrum is eliminated.

The invention provides a hollow vector support multifunctional protection device for a minimally invasive surgery, which can be applied to minimally invasive surgeries of the oral cavity, pharynx andthroat, digestive tract, respiratory tract, thoracic cavity, abdominal cavity and other cavities. A flap on a protective head of the protection device can be used for protecting an operation area by adjusting an opening degree through an axial movement mechanism of an inner cylinder, and the size of the operation area can be freely adjusted; and the protective head can also be rotated outwards through a pitching mechanism of the protective head to increase an operation visual field, so that vector adjustment of the protective head and the flap is achieved, and the direction, force and size ofthe protective head and the flap can be adjusted as required. The hollow vector support multifunctional protection device is also provided with a gas fluid transfusion and delivery passage and an illumination device on the flap, so that the integration of multiple functions of illumination, flushing, drug administration, cleaning, disinfection, hemostasis, provision of support channels for surgical tools such as a laser scalpel and the like is achieved; and by covering the part between the protective head and a shell and / or between a plurality of flaps with an elastic membrane and the like, the wound of the operation area is reduced.

A system and method for reshaping and altering the cornea of an eye employs a laser beam for two different purposes. For one, the laser beam is configured to perform Laser Induced Optical Breakdown (LIOB) on selected tissue in the stroma of the cornea. This generally weakens the stromal tissue and allows intraocular pressure and bio-mechanical forces in the eye to reshape the cornea. For the other, the laser beam is configured to cause Permanent Structural Change (PSC) on selected tissue in the stroma of the cornea. This alters the tissue density of the selected PSC stromal tissue to change its refractive index. In combination, the LIOB and PSC provide for corrected vision.

A lase scalpel comprises a cutter shaft, a spring coaxially connected to the front of the cutter shaft, a cutter head connected to the front of the spring for emitting laser light, a motor arranged behind the cutter shaft, a single chip microcomputer connected to the motor phase signal for controlling the motor, a steel wire pulled along the axial direction of the cutter shaft by the motor to bendthe spring, and an optical fiber for transmitting laser light. The steel wire passes through the cutter shaft and the spring to be connected with the motor and the cutter head respectively, or the steel wire passes through the cutter shaft and a part of the spring to be connected with the motor and the spring respectively; The optical fiber is connected to the laser light source and extends fromthe rear of the cutter shaft into the cutter head through the cutter shaft and spring. As that steel wire driven by the motor is use for pulling the spr, the bending deformation of the knife body is realized, so that the curve cutting can be realize, the utility model is convenient to use and easy to control, and the requirements of various medical schemes can be fully met.

The invention discloses an optical fiber laser scalpel. The optical fiber laser scalpel comprises an optical fiber laser, a laser scalpel head, a gain fiber, a laser conductive fiber, a pluggable fiber connector and a cooler, wherein the gain fiber and the laser conductive fiber are arranged in the optical fiber laser and the laser scalpel head respectively, the pluggable fiber connector is arranged between the optical fiber laser and the laser scalpel head and connects the gain fiber and the laser conductive fiber, and the cooler can cool heat generated by the optical fiber laser. The optical fiber laser scalpel is of full-fiber structure, only fibers are used from laser generation and conducting, light beam is good in quality, continuous and stable, and the optical fiber laser scalpel has the advantages of compact structure, convenience in operation, simplicity in maintenance, high efficiency, energy conservation, environment friendliness and low cost. The optical fiber laser and the laser scalpel head are connected by the pluggable fiber connector, different lengths of conducting fibers and different laser scalpel heads can be convenient equipped for operation, replacement is facilitated, and operation efficiency is improved. The optical fiber laser scalpel is applicable to various in-vivo interventional surgical minimally invasive laser operations.

This invention discloses a laser induced breakdown spectroscopy (LIBS) apparatus based on a high repetition rate pulsed laser. The laser produces a train of laser pulses at a high repetition rate in the kHz or even higher range. When the laser beam hits the sample, it generates several thousands of micro-plasma emissions per second. Synchronized miniature CCD array optical spectrometer modules collect the LIBS signal from these micro-plasma emissions. By adjusting the integration time of the spectrometer to cover a plurality of periods of the laser pulse train, the spectrometer integrates the LIBS signal produced by this plurality of laser pulses. Hence the intensity of the obtained LIBS spectrum can be greatly improved to increase the signal-to-noise ratio (SNR) and lower the limit of detection (LOD). In addition, the influence of pulse to pulse variation of the laser is minimized since the obtained LIBS spectrum is the spectrum of a plurality of micro-plasma emissions produced by a plurality of laser pulses. The high repetition rate laser also makes it possible to measure the LIBS signal at a short and a long integration time and mathematically combining the two spectra to obtain a LIBS spectrum with enhanced dynamic range.

The invention relates to a laser scalpel pen which comprises a power supply, an LCD (Liquid Crystal Display), an intelligent laser controller, a parallel laser transmitter, self-focusing lenses, optical fibers, a coupler and a laser knife pen, wherein laser beams output from the laser transmitter are converged through double self-focusing lenses and enter the optical fibers through an optical fiber connector; after two strands of parallel optical fibers are coupled through the coupler, the laser energy is transferred to the laser knife pen; the intelligent laser controller is used for adjusting the power supply frequency of the laser transmitter and adjusting the pulse width, thereby adjusting the power density of the output laser beams; and the laser knife pen has a single-laser or double-laser selection mode, and the focal length of the laser knife pen can be adjusted to carry out tissue gasification and bleeding arresting or heating operation.

The present invention provides a laser system for detecting biomechanical properties of the cornea, which comprises a laser for emitting a pulsed laser beam, a beam transmission module, a collecting-filtering module and a spectroscopic analysis unit, the beam transmission module is used for transmitting the laser beam and focusing the laser beam onto the cornea, on the surface of which a laser-induced plasma signal is generated; the laser-induced plasma signals are collected and filtered by the collecting-filtering module; the spectroscopic analysis unit performs spectroscopic analysis on the laser-induced plasma signal to determine the biomechanical properties of the cornea. The present invention further provides a method for detecting the biomechanical properties of the cornea with the above laser system. The same laser system for LASIK surgery is utilized in the present invention to measure the biomechanical properties of the cornea timely and accurately, which improves work efficiency.

CdSiP2 crystals with sizes and optical quality suitable for use as nonlinear optical devices are disclosed, as well as NLO devices based thereupon. A method of growing the crystals by directional solidification from a stoichiometric melt is also disclosed. The disclosed NLO crystals have a higher nonlinear coefficient than prior art crystals that can be pumped by solid state lasers, and are particularly useful for frequency shifting 1.06 μm, 1.55 μm, and 2 μm lasers to wavelengths between 2 μm and 10 μm. Due to the high thermal conductivity and low losses of the claimed CdSiP2 crystals, average output power can exceed 10 W without severe thermal lensing. A 6.45 μm laser source for use as a medical laser scalpel is also disclosed, in which a CdSiP2 crystal is configured for non-critical phase matching, pumped by a 1064 nm Nd:YAG laser, and temperature-tuned to produce output at 6.45 μm.

The invention belongs to the field of medical devices, and in particular relates to a diagnosis and treatment integration confocal colposcopic system. The diagnosis and treatment integration confocal colposcopic system comprises a hard colposcope, wherein a treatment device is arranged on the hard endoscopic end part of the hard colposcope, and a treatment system host which is correspondingly matched with the treatment device is connected to the hard colposcope. Specifically, the diagnosis and treatment integration confocal colposcopic system organically combines the hard colposcope and a confocal laser scanning microscope system with a laser scalpel system or a microwave scalpel system. Through the clinical application of the diagnosis and treatment integration confocal colposcopic system, an effect of diagnosing and treating at the same time can be realized, one colposcopic can realize two problems of diagnosis and treatment simultaneously, endoscopes are prevented from being frequently changed, and the corresponding treatment can be immediately carried out, so that surgical time is greatly saved, and the pain of a patient is relieved; and furthermore, the surgical accuracy and safety are improved, and an unexpected effect is realized.

The invention discloses a novel super-energy-gathered laser scalpel. The scalpel comprises an outer shell, a laser tool bit, a water-cooling and air-cooling sleeve, a cooling positioning device, a composite mirror body assembly and a smoke exhaust assembly, wherein the laser tool bit is detachably mounted at the front end of the cylindrical outer shell; the water-cooling and air-cooling sleeve comprises a water-cooling sleeve and an air-cooling sleeve which are matched and clamped; the water-cooling sleeve and the air-cooling sleeve are both arranged in a hollow accommodating cavity of the outer shell; the front end of the cooling positioning device is sleeved in the water-cooling sleeve, the middle section of the cooling positioning device is sleeved in the air-cooling sleeve, and the rear section of the cooling positioning device is wrapped by a bunching sleeve; the composite mirror body assembly comprises a biconvex lens and a plano-convex lens which are respectively clamped in theair-cooling sleeve in parallel; and the smoke exhaust assembly comprises a smoke exhaust pipe embedded in the cooling positioning device and a smoke adsorption assembly. The novel super-energy-gathered laser scalpel is provided with the cooling positioning device, the composite mirror body assembly and the smoke exhaust assembly, therefore, rapid cooling of the lens part is realized, and the composite mirror body can gather and increase laser and discharge smoke; and normal operation of laser surgery is improved.

The invention relates discloses a laser type ultra-equal-length hammer throw core strength training and information feedback device and relates to laser type ultra-equal-length hammer throw strength training devices. The device solves the problems that in the prior art, a device which integrates hammer throw core strength training and ultra-equal-length training does not exist, and the exercising speed at the exercising final force time can not be measured. The device comprises a training handheld weight component, a shaking support, a motor assembly, a matching part, a fixing plate, a balance training mechanism with the information feedback function, a laser speed sensor, a moving mechanism and two travel switches. The shaking support comprises an annular plate, supporting legs and springs, the motor assembly comprises a motor and a cam, the balance training mechanism with the information feedback function comprises a pedal, a balance base, a distance measuring sensor and a control circuit, and the distance measuring sensor is fixed on the pedal. The laser type ultra-equal-length hammer throw core strength training and information feedback device is used in hammer throw core strength training.

The invention relates to a surgery endoscope device with a feedable, retractable and orientation-rotatable laser emission window. The surgery endoscope device is characterized in that a laser emission window feeding and retracting axial motion control part and an orientation rotation motion control part are used to precisely and conveniently control the axial position and orientation of the laser emission window of especially a side-emission laser sheath or traditional manual and direct operation of the laser sheath (including the side-emission optical fibers) or an operation manner rotating an endoscope is replaced, a visual surgery field which can be monitored in real time is obtained, laser energy is allowed to safely and efficient act on the lesion of a human body, and clinical treatment of part of lesions such as prostate hyperplasia and bladder tumor of the human body can be completed. By the device, a surgeon can simply and conveniently operate a laser scalpel, and a learning curve becomes easy.

The invention provides a flexible optical fiber and a drivable laser scalpel based on the optical fiber. The flexible optical fiber comprise an optical fiber structure located on the inner side and aflexible enhancement layer wrapping the optical fiber structure, and the optical fiber structure has the functions of energy transmission and information transmission of a common optical fiber; the flexible enhancement layer comprises at least two layers, and the outermost layer of the flexible enhancement layer has low rigidity. According to the flexible optical fiber, through the design of the flexible enhancement layer, the bending capability of the optical fiber can be improved under the condition that the function of the optical fiber is not obviously influenced, and the selectable rangeof the outermost layer material of the optical fiber is wider. The drivable laser scalpel based on the optical fiber comprises a laser scalpel framework, the flexible optical fiber and a driving wire,the flexible optical fiber and the driving wire are located in the framework, the flexible optical fiber has the energy transmission capacity, and the driving wire is used for controlling movement ofthe framework. The drivable laser scalpel has the functions of high-power laser transmission, form sensing, posture control based on visual servo and the like.

The invention discloses a tumor targeted non-destructive low-power laser multi-functional scalpel system and relates to the technical field of medical instruments. The tumor targeted non-destructive low-power laser multi-functional scalpel system comprises a photodynamic therapy system and a multi-scalpel system, wherein the photodynamic therapy system is combined with the multi-scalpel system, and the photodynamic therapy system and the multi-scalpel system are connected with a host machine of the multi-scalpel system through active wires. According to the tumor targeted non-destructive low-power laser multi-functional scalpel system, the microcosmic cancer cell killing function of photodynamic therapy is added to current scalpels; due to the adoption of invisible low-power laser, the visual field of an operation is not influenced; by means of the dual-targeting property of the photodynamic therapy, cancer cells are killed selectively, normal tissue of a patient is not injured, a doctor conducting the operation is not influenced, and perfect combination of macroscopic tumor excision and microscopic tumor cell dissection is achieved for the first time.

The invention discloses an independent cooler for a laser scalpel. The independent cooler comprises a gas refrigeration system, a heat dissipation system, an electric control system and a structure system. After the refrigeration system is started, gas passing through the cooler is cooled; the heat dissipation system achieves temperature balance by driving air circulation in the equipment to achieve evacuation of excess heat in the equipment; the electric control system controls all the systems to work coordinately according to a command of the human-computer interface; the structure system comprises a shell and a support of internal devices, and all the systems are assembled together to form complete equipment. The independent cooler has the advantages of being low in noise, friendly to ahuman-computer interface, stable in performance, high in refrigeration speed and the like, the scalpel head of the laser scalpel is cooled in the operation process, and damage of high temperature ofthe scalpel head of the laser scalpel to human tissue is effectively avoided.