116 results about "Surgical lasers" patented technology

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.

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

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

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.

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

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

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

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

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

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

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

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.

A surgical laser system includes an array of laser diodes that are configured to output laser energy, a fiber bundle, a delivery fiber, and a tubular sheath. The fiber bundle includes a plurality of optical fibers and has a proximal end that is configured to receive laser energy from the array of laser diodes. The delivery fiber includes a proximal end that is configured to receive laser energy from a distal end of the fiber bundle. The tubular sheath defines a lumen, in which at least a portion of the delivery fiber is disposed. The tubular sheath is insertable into a working channel of an endoscope or a cystoscope. A distal end of the tubular sheath is configured to deliver laser energy discharged from the delivery fiber into a body of a patient.

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.

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

The 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.

A surgical laser system includes an array of laser diodes that are configured to output laser energy, a fiber bundle, a delivery fiber, and a tubular sheath. The fiber bundle includes a plurality of optical fibers and has a proximal end that is configured to receive laser energy from the array of laser diodes. The delivery fiber includes a proximal end that is configured to receive laser energy from a distal end of the fiber bundle. The tubular sheath defines a lumen, in which at least a portion of the delivery fiber is disposed. The tubular sheath is insertable into a working channel of an endoscope or a cystoscope. A distal end of the tubular sheath is configured to deliver laser energy discharged from the delivery fiber into a body of a patient.

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

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

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