30 results about "Fiberguide" patented technology

A radiation emitting apparatus is disclosed that emits a substantially homogenous beam of radiation from an irregularly shaped output end. As described herein, a radiation emitting apparatus includes a bundled fiberguide coupled to an energy distribution tuner. The bundled fiber guide is coupled to the energy distribution tuner to receive a substantially uniform distribution of high power energy. The bundled fiber guide is configured to distribute the energy to emit a substantially uniform distribution of lower power energy toward a target surface, such as a body surface. The bundled fiber guide may include a plurality of fused optic fibers, a plurality of beam splitting mirror elements, or tapered waveguides.

Fiber optic conduits are received around a central axis with their axes extending in the same direction as the central axis and with each fiber optic conduit tangent to two other fiber optic conduits. The fiber optic conduits defme a central interstitial space therebetween and a plurality of outer interstitial spaces between each pair of fiber optic conduits on a side thereof opposite the central interstitial space. A central interstitial member is received in the central interstitial space tangent to the fiber optic conduits and an outer interstitial member is received in each outer interstitial space tangent to the pair of fiber optic conduits defining the outer interstitial space. The central interstitial member has a larger modulus of elasticity than each outer interstitial member.

The present invention provides a fiberguide grating sensor, having advantages of easier demodulation, high measurement precision and stronger multiplexing capability. The fiberguide grating sensor includes an optical fiber and an optical fiber to be joined, the end face of the optical fiber is provided with a groove, the optical fiber is connected with the optical fiber to be joined through buttjunction, the groove is formed to a cavity, the optical fiber to be joined is formed to a waveguide diaphragm, and the waveguide diaphragm is processed with a plurality of periodicity microflutes. By preparing a periodic waveguide grating structure on the waveguide diaphragm, it is capable of forming a waveguide grating for reflecting a specific wavelength, the bandwidth of the reflected wavelength is narrow, and it is capable of obtaining the better measurement precision and the multiplexing capability; comparing with the common optical fiber grating, the waveguide grating with a cavity structure has a high sensitivity, and is capable of sensing the outside temperature, pressure and refractive index variation directly; by employing a whole optical fiber structure, the invention has a strong high temperature resistance capability, and it is capable of changing the range of the sensor by changing the dimension of the optical fiber and the diameter of the cavity.

This invention relates to an optical collimator head-on package device and a method in which, the device includes: a frame, a clamper, a z axle moving platform, an x axle moving plalaform and a gear row in which, a fiber tube sleeved by a glass bushing is held by the device them a graded optical signal Grin-lens end is rested with a gear and sleeved by a glass bushing. The gear connection relationship of the gear and gear row is used to make the Grin-lens shift up and down or rotate through x, z axle shifting platforms to adjust location and angle of the Grain-lens related to strong or weak light signals to keep it unchanged to ensure the head-on location when fixing the lens and glass bushing with glue.

The invention provides a cooling sleeve which comprises an inner pipe, an optical fiber is arranged in the inner pipe, the outer wall of the optical fiber is in contact with the inner wall of the inner pipe to form a plurality of first contact parts extending in the axial direction, and axial gaps between the adjacent first contact parts form first circulation channels; the inner pipe is arranged in an outer pipe, the inner wall of the outer pipe makes contact with the outer wall of the inner pipe to form a plurality of second contact parts extending in the axial direction, and axial gaps between the adjacent second contact parts form second circulation channels; the near ends of the first circulation channels and the near ends of the second circulation channels are communicated at the near end of the outer pipe to form a back-flow cavity; and the far ends of the first circulation channels and the far ends of the second circulation channels are respectively and independently communicated with the outside. The invention further provides an optical fiber conduit with the cooling sleeve. The cooling sleeve and the optical fiber conduit with the same are ingenious in conception, and coaxial self-supporting among the inner pipe, the outer pipe and the optical fiber is achieved through the contact mode of the inner pipe, the outer pipe and the optical fiber.

The invention provides an eccentric endoscope catheter, which adopts eccentric aperture and optical fiber eccentric arrangement design to perform real-time imaging and real-time treatment on pathological tissues in a catheter cavity. The catheter comprises a catheter head end, a catheter wall part, a catheter cavity part and a catheter tail end. A plurality of apertures which are eccentrically and annularly distributed are designed in the catheter head end and are used for placing an endoscope objective lens imaging system, a lighting source required by endoscope imaging and a discharge aperture for normal saline or gas. A plurality of optical fibers used for laser ablation are arranged at the catheter cavity part and are arranged in an eccentric array manner. An aperture of an endoscope imaging system, an aperture of an illumination light source, an injection aperture of normal saline or gas and a plurality of optical fibers are reserved in the catheter cavity. A miniature spring and a flexible material are arranged on the catheter wall part, and the bending angle of catheter imaging and treatment is controlled. According to the design of the catheter, imaging and treatment in a catheter cavity are better combined, and the treatment time of minimally invasive surgery can be shortened.

Laser fiber probe consists of a suction sheath with a suction window in the distal end of the sheath and a fiber conduit with fiber position regulator to limit and position the fiber laser window. The suction sheath and the fiber conduit are constructed that the suction window is used to catch up the surgery targets and also functions as the entrance of the surgery debris, where the fiber laser window is in contact with the sucked surgery targets. Hereby the surgery targets sucked by the suction window are made into debris through the laser energy emitted from the fiber laser window, while the surgery debris is evacuated all the way out of the patient through the suction, which improves the surgery efficiency and ultimately reduces the procedure time.

The invention discloses a transurethral optical-acoustic prostate imaging method and device based on ring array receiving. The device comprises a pulse laser source excitation system, an optical fibercatheter scanning system, a ring array detector probe system, a signal collecting and conditioning system and a data processing system. Pulse laser is guided into the urethra through an optical fibercatheter, the pulse laser is irradiated to the portion to be tested of the prostate through rotating scanning, and therefore optical and acoustic signals are excited; the ring array detector is usedfor scanning and parallel receiving of full-angle optical and acoustic signals, the received optical and acoustic signals are amplified and filtered and converted into digital signals through a multi-channel signal collecting system, denoising is performed through the data processing system, and rebuilding and display are performed. The optical fiber catheter is used for transurethral internal full-angle and large-facula mechanical rotating excitation, the ring array detector performs electronic scanning and collecting, and prostate tissue full-range, high-contrast, high-resolution and rapid imaging can be achieved.

The invention discloses an optical fiber catheter intervening Schlemm's canal and a preparation process of a button-head. The catheter comprises a Luer taper, a perfusion pipeline, an external opticalfiber, a tee joint, a use section catheter and an internal optical fiber; one end of the perfusion pipeline is connected to the Luer taper in series, the other end of the perfusion pipeline extends to the tee joint, one end of the external optical fiber is connected to an optical fiber joint in series, and the other end of the external optical fiber extends to the tee joint; the internal opticalfiber is arranged on the use end catheter, the use end catheter comprises a near end and a far end, the near end is a transition catheter, and the far end is an intervening catheter; the diameters ofinternal channels of the transition catheter and the intervening catheter are larger than the outer diameter of the internal optical fiber, and the button-head is arranged at the head end of the intervening catheter; and the diameter of the internal channel of the button-head is smaller than that of the internal channel of the intervening catheter. The optical fiber catheter intervening Schlemm'scanal has the advantages of small interventional resistance, minimal damage and high safety.

The invention provides an illuminating system of a green and environment-friendly building. Supplementary lighting is provided through an LED under the condition that natural light is not enough to meet the illumination standard. The illuminating system of the green and environment-friendly building is characterized by comprising a lighting part, a condensing lens and an optical fiber guide pipe which are arranged on a roof of the building. Natural light passes through the lighting part, then passes through the condensing lens and is transmitted to the interior of the building through the optical fiber guide pipe.

The invention discloses an optical fiber conduit cooling system capable of removing fluid bubbles. The optical fiber conduit cooling system comprises an optical fiber conduit, the optical fiber conduit is only composed of an optical fiber and a sleeve arranged outside the optical fiber in a sleeving mode, a plurality of interval parts are arranged in the mode that the inner wall of the sleeve extends towards the axis direction of the sleeve, a plurality of gaps which extend in the length direction of the sleeve and are not communicated with one another are formed among the optical fiber, the sleeve and the interval parts, one part of the gaps form a water inlet channel, and the other part of the gaps form a water outlet channel; and one end of the water inlet channel is communicated with one end of the water outlet channel, the other end of the water inlet channel is communicated with a cold source, and the other end of the water outlet channel is used for discharging the cold source. According to the optical fiber conduit with the single-sleeve structure, the coaxiality and the straightness of the optical fiber and the sleeve become very easy. The invention further provides a method for eliminating bubbles from the cooling liquid distribution system. The method ensures that the liquid entering the optical fiber guide pipe is free of bubbles.

The invention relates to an auxiliary movement device, a driving system and a control method, and belongs to the technical field of ablation operation devices. An auxiliary movement device comprises a rack, a movement assembly and a driving assembly. The motion assembly is arranged on the rack, and the motion assembly is driven by the driving assembly to do linear and / or rotary motion; the driving assembly comprises a manual driving part and a full-automatic driving part; the manual driving part is used for achieving manual control over the movement assembly. The full-automatic driving part is used for achieving full-automatic control over the movement assembly. According to the invention, synchronous linear motion and rotary motion of the optical fiber conduit are realized, and the control precision of the linear displacement and the rotary angle is improved through the engagement of the lead screw and the gear; the driving assembly is provided with double driving sources, so that manual adjustment of the optical fiber conduit can be realized, and full-automatic adjustment of the optical fiber conduit can also be realized.

An all-purpose device capable of in vitro spectral analysis of sunscreen compositions as well as diffuse reflectance spectroscopy (DRS) capabilities on human skin includes a fiber optic guide, a light source positioned at one end of the fiber optic guide, and a sunscreen substrate assembly positioned at another end of the fiber optic guide.

The invention relates to an optical fiber catheter one-way stepping device and a driving system, belongs to the field of ablation operation devices, and solves the problems that a stepping device in the prior art is inaccurate and unstable in displacement and cannot be used in a nuclear magnetic environment. An optical fiber conduit one-way stepping device comprises a driving assembly and a stepping assembly, and the driving assembly is used for driving the stepping assembly to move; the stepping assembly comprises a machine base, a driving stepping part and a driven stepping part, the driving stepping part and the driven stepping part are arranged in the machine base and are mutually meshed and connected in a ratchet wheel and ratchet mode, and the driving assembly drives the driving stepping part to drive the driven stepping part to conduct one-way stepping. The driven stepping part drives the optical fiber conduit to realize synchronous one-way stepping motion; the precision and the stability are improved by driving the optical fiber conduit to move unidirectionally and equidistantly.

The invention provides a fruit defect detection method based on a structured hyperspectral system, which is high in detection accuracy and is particularly suitable for detecting bruised fruits which are invisible to naked eyes at an early stage. The structured hyperspectral system comprises a hyperspectral camera, a light source, an optical fiber conduit, a projector and a computer, the computer is electrically connected with the hyperspectral camera and the projector, the light source is connected with the projector through the optical fiber conduit, and the hyperspectral camera, the projector and the fruits are placed in a closed black box; the method comprises the following steps: generating sine fringes through computer programming, projecting the sine fringes to a fruit through a projector, shooting different phase pictures by using a hyperspectral camera, demodeling the phase pictures into a complete picture, obtaining a structured spectrum, and identifying fruit defects.

The invention discloses a special optical fiber guide mold for a skeleton groove optical cable. The mold comprises a mold main body, at least one skeleton limiting block and at least one optical fiberguide structure; a skeleton guide hole is formed in the mold main body; the optical fiber guide structure comprises a guide groove and an adjusting sliding block; the bottom of the guide groove inclines towards the center, and the front end of the bottom of the guide groove is connected with the framework guide hole; the adjusting sliding block is embedded in the guide groove in a matched mode and is detachably and fixedly connected with the mold main body along the guide groove in a position adjusting mode; an optical fiber guide hole cavity is formed between the adjusting sliding block andthe bottom of the guide groove; a skeleton limiting block is detachably and fixedly arranged on the rear end face of the mold main body in the mode that the position can be adjusted in the radial direction; a sharp limiting protruding block is arranged at the end, close to the skeleton guide hole, of the skeleton limiting block and matched with a skeleton groove, and a skeleton can be effectivelylimited against rotating displacement. With the guide mold adopted, an optical fiber can be stably guided into the skeleton groove of the small skeleton groove optical fiber; and the guide mold is worry-saving, labor-saving, stable and reliable.

The invention discloses a loose tube double-pre-filling oil filling device and process. The loose tube double-pre-filling oil filling device comprises a fiber paste filling structure and an optical fiber guide structure. The fiber paste filling structure comprises a first pre-filling mechanism and a second pre-filling mechanism, and each of the first pre-filling mechanism and the second pre-filling mechanism comprises a base internally provided with a cavity, an inlet die and a wiping die, wherein the inlet die and the wiping die are arranged at the two ends of the base respectively, and the inlet die and the wiping die are communicated with the cavity. A fiber paste runner communicated with the cavity is arranged on each base; the optical fiber guide structure comprises an optical fiber guide pipe; a guide hole is formed in the center of the optical fiber guide pipe; the center positions of the inlet dies, the wiping dies and the guide hole are located on the same straight line. The optical fiber is pre-coated with the fiber paste twice through the first pre-filling mechanism and the second pre-filling mechanism in sequence, so that the optical fiber is pre-coated with the fiber paste more uniformly and fully, and the problems of non-uniform outer diameter and bamboo joint shape of the loose tube are solved.

The invention discloses an optical fiber plastic coating anti-jitter fiber pay-off device. The optical fiber plastic coating anti-jitter fiber pay-off device comprises a pay-off rack and optical fiberreels. The optical fiber reels are mounted on the pay-off rack and rotate along with pay-off shafts to pay off optical fibers. Swing guide wheel assemblies are mounted on the pay-off rack. Each swingguide wheel assembly comprises a swing wheel bracket, an optical fiber guide wheel I, an optical fiber guide wheel II and a counter weight, wherein the optical fiber guide wheel I, the optical fiberguide wheel II and the counter weight are all mounted on the swing wheel bracket; the swing wheel bracket is mounted on the pay-off rack through bearings and can swing in the direction parallel to theaxial direction of the corresponding optical fiber reel; the connection lines of the centers of the optical fiber guide wheel I, the optical fiber guide wheel II and the counter weight form a triangle structure; and the optical fiber on the corresponding optical fiber reel are guided by the optical fiber guide wheel I and the optical fiber guide wheel II to be output. The optical fibers are paidoff and output through the optical fiber reels and are guided and output through the swing guide wheel assemblies to be fed into a plastic extruding machine head during the plastic coating process. Through the design of the swing guide wheel assemblies, the lengths of the optical fibers from the optical fiber reels to dancing tension guide wheels can be made consistent. The problem of jittering ofoptical fibers in the pay-off process in the prior art is solved.

A cylindrical optical fiber balloon catheter device for biliary tract tumor photodynamic precise treatment comprises an inflatable balloon, an outer sleeve and an optical fiber catheter which are all made of transparent materials. The head end of the outer sleeve is communicated with the inflatable balloon, the tail end of the outer sleeve is connected with the quantitative inflation device, and the quantitative inflation device is used for quantitatively inflating the inflatable balloon through the outer sleeve; the head end of the optical fiber catheter is arranged in the inflatable balloon along the outer sleeve, the tail end of the optical fiber catheter extends out of an opening in the side wall of the outer sleeve, the columnar optical fiber is arranged from an optical fiber inlet in the tail end of the optical fiber catheter, and a light-emitting part of the columnar optical fiber is located at the head end of the optical fiber catheter. By means of the inflatable balloon, a focus can be completely covered, the collapsed bile duct can be expanded, the optical fiber is kept at the position of the duct core, bile, blood and the like are discharged, the optical fiber can conveniently conduct photodynamic therapy through the optical fiber catheter, and the problem that laser irradiation is uneven due to the fact that the optical fiber is attached to one side of the bile duct wall is solved; the light transmittance is prevented from being influenced by bile, so that the biliary tract tumor photodynamic therapy effect is improved.

The invention discloses an ultrafast laser galvanometer scanning coupling method, which comprises the following steps: through a basic structure consisting of an ultrafast laser, a galvanometer, a converter, a controller, an optical fiber conduit and an output end, quickly filling a light field into a whole optical fiber array beam in the optical fiber conduit by using a low-power single ultrafast laser beam; the whole optical fiber array beam has the effect equivalent to high-power laser irradiation, an irradiation light field is expanded, precise coupling is achieved, the power requirement and manufacturing cost of a laser and the heat effect on surrounding tissue are reduced, and the purposes of intravascular treatment, especially efficient thrombus and plaque ablation are achieved.

The invention relates to a silk thread auxiliary movement device, a driving system and a control method, and belongs to the technical field of ablation operation devices. The silk thread auxiliary movement device comprises a rack, a linear movement assembly and a rotary movement assembly, the rotary movement assembly is movably arranged in an annular neck of the linear movement assembly, and the rotary movement assembly is detachably connected with an optical fiber guide pipe; the silk thread auxiliary movement device further comprises a driving assembly, and a linear transmission silk and a rotary transmission silk are wound on the driving assembly. One end of the linear transmission wire is wound on the linear motion assembly, and one end of the rotary transmission wire is wound on the rotary motion assembly; the linear transmission wire is used for driving the linear motion assembly to do linear motion; and the rotary transmission wire is used for driving the rotary motion assembly to do rotary motion. According to the invention, the simultaneous linear motion and rotary motion of the optical fiber conduit are realized, in addition, linear and rotary transmission can be completed by using one motor, and the device structure is simplified.

The present invention provides a fiberguide grating sensor, having advantages of easier demodulation, high measurement precision and stronger multiplexing capability. The fiberguide grating sensor includes an optical fiber and an optical fiber to be joined, the end face of the optical fiber is provided with a groove, the optical fiber is connected with the optical fiber to be joined through buttjunction, the groove is formed to a cavity, the optical fiber to be joined is formed to a waveguide diaphragm, and the waveguide diaphragm is processed with a plurality of periodicity microflutes. By preparing a periodic waveguide grating structure on the waveguide diaphragm, it is capable of forming a waveguide grating for reflecting a specific wavelength, the bandwidth of the reflected wavelengthis narrow, and it is capable of obtaining the better measurement precision and the multiplexing capability; comparing with the common optical fiber grating, the waveguide grating with a cavity structure has a high sensitivity, and is capable of sensing the outside temperature, pressure and refractive index variation directly; by employing a whole optical fiber structure, the invention has a stronghigh temperature resistance capability, and it is capable of changing the range of the sensor by changing the dimension of the optical fiber and the diameter of the cavity.

The invention discloses a multipurpose industrial lighting system based on a paraboloid light collecting plate and a light guide pipe, and relates to the field of lighting systems. The system comprises: a light condensing plate, wherein the bottom of the light condensing plate is sunken downwards to form a concave mirror, and a light hole is formed in the center of the bottom; a telescopic rod which is rotationally connected to the light condensing plate and is used for adjusting the position of a light condensing element; a light condensing element which is arranged at the focal point of the light condensing plate and used for gathering light to the light hole; and an optical fiber tube, wherein optical fibers are arranged in the optical fiber tube, one end of the optical fiber tube is arranged at the light hole and used for receiving and transmitting the light source, and the other end is connected with an indoor light-emitting element which can be powered by a power supply to emit light. The optical fibers are used for replacing a traditional lighting mode, light loss is reduced, indoor and outdoor lighting is achieved by means of reversibility of light, and the system is high in practicability and suitable for popularization.

The invention discloses an optical fiber coupling catheter system for catheter material output and photochemical reaction, which comprises a catheter main body, one end of the catheter main body is connected with a coupling tailstock, the interior of the catheter main body comprises a material cavity, an optical fiber light path, a sheath liquid cavity and a support wire, and an optical fiber is introduced into the optical fiber light path; the head end of the catheter body is provided with a single-cavity channel, and the material cavity, the optical fiber, the sheath fluid cavity and the supporting wire are all led into the single-cavity channel. According to the device, the functions of conveying hydrogel containing a contrast agent through the catheter and carrying out photocuring in a single-cavity channel can be achieved, meanwhile, input of three kinds of energy or substances including light, materials and sheath fluid is provided with independent channels, intersection and action are carried out in the single-cavity channel at the head end in the catheter body, the conveying process is safe and free of interference, and the conveying efficiency is improved. The functional hydrogel is efficiently conveyed to a focus part, and meanwhile, stimulation conditions can be applied before the hydrogel is in contact with the surface of focus tissue, so that the dual-curing effects of material ion coordination and photo-crosslinking are achieved.

Reperfusion injury is limited during endovascular therapies (e.g., revascularization and / or reperfusion of end organ tissues) by conditioning the tissues against reperfusion injury using an optical fiber catheter to deliver far red and near infrared (R / NIR) light to the tissues. The light may be multiple wavelength or single wavelength light, and may have one or more wavelengths selected from the range of 510 to 830 nm. The R / NIR light may be delivered concurrently with the endovascular therapy, or in other instances may be delivered before or after a particular therapy.