45 results about "Fiberguide" patented technology

A catheter system (100) for treating a treatment site (106) within or adjacent to a blood vessel (108) includes a power source (124), a light guide (122) and a plasma target (242). In various embodiments, the light guide (122) receives power from the power source (124). The light guide (122) has a distal tip (244), and the light guide (122) emits light energy (243) in a direction away from the distal tip (244). The plasma target (242) is spaced apart from the distal tip (244) of the light guide (122) by a target gap distance (245). The plasma target (242) is configured to receive light energy (243) from the light guide (122) so that a plasma bubble (234) is generated at the plasma target (242). The power source (124) can be a laser and the light guide (122) can be an optical fiber. The catheter system (100) can also an inflatable balloon (104) that encircles the distal tip (244) of the light guide (122). The plasma target (242) can be positioned within the inflatable balloon (104). The plasma target (242) can have a target face (1672) that receives the light energy (243) from the light guide (122). The plasma target (242) can be formed from one or more of tungsten, tantalum, platinum, molybdenum, niobium, iridium, magnesium oxide, beryllium oxide, tungsten carbide, titanium nitride, titanium carbonitride and titanium carbide.

The invention relates to the technical field of laser medical instruments, in particular to a laser ablation optical fiber catheter system with an imaging function, which comprises an optical fiber catheter assembly and a light splitting imaging assembly, the optical fiber catheter assembly comprises a sleeve, a guide wire guiding tube and an optical fiber bundle arranged in the sleeve, and an optical fiber coupler and an annular imaging lens are arranged at the two ends of the sleeve respectively; the tail end of the optical fiber bundle is coupled with the annular imaging lens, and the head end is connected with the optical fiber coupler; the light splitting imaging assembly comprises a light splitter and an imaging processing device, and the light splitter is located between the imaging processing device and the optical fiber coupler. The annular imaging lens is arranged at the tail end of the optical fiber catheter assembly, the spectroscopic imaging assembly is combined, vascular lesion tissue imaging is reduced, vascular lesion tissue can be observed in real time, the optical fiber bundle transmits ablation laser and pixel optical signals at the same time, extra pixel optical fibers are not added, the optical fiber catheter assembly can be made to be of a thin specification, and the optical fiber catheter assembly is convenient to use. And the application range is wider.

The invention discloses a coupler and medical equipment, and relates to the technical field of medical instruments. The coupler comprises a coupling shell, a primary adjusting mechanism, a secondary adjusting mechanism and a plurality of lenses, a coupling cavity, an input port and an output port are formed in the coupling shell, the input port is suitable for connecting a light source, and the output port is suitable for connecting the input end of the optical fiber conduit; the positions of the coupling shell in the first direction and the second direction at least can be adjusted under the driving of the primary adjusting mechanism; the plurality of lenses are respectively arranged in the coupling cavity, and the positions of the lenses in the first direction and the second direction can be at least adjusted under the driving of the secondary adjusting mechanism. According to the invention, the structure of the coupler is improved, and a secondary coupling adjustment structure is adopted, so that the problem of poor alignment precision of the laser output by the laser and the optical fiber conduit after coupling is effectively solved, and the coupling efficiency and accuracy are greatly improved.

A catheter system (100) for treating a treatment site (106) within or adjacent to a blood vessel (108) includes a power source (124), a light guide (122) and a plasma target (242). In various embodiments, the light guide (122) receives power from the power source (124). The light guide (122) has a distal tip (244), and the light guide (122) emits light energy (243) in a direction away from the distal tip (244). The plasma target (242) is spaced apart from the distal tip (244) of the light guide (122) by a target gap distance (245). The plasma target (242) is configured to receive light energy (243) from the light guide (122) so that a plasma bubble (234) is generated at the plasma target (242). The power source (124) can be a laser and the light guide (122) can be an optical fiber. The catheter system (100) can also an inflatable balloon (104) that encircles the distal tip (244) of the light guide (122). The plasma target (242) can be positioned within the inflatable balloon (104). The plasma target (242) can have a target face (1672) that receives the light energy (243) from the light guide (122). The plasma target (242) can be formed from one or more of tungsten, tantalum, platinum, molybdenum, niobium, iridium, magnesium oxide, beryllium oxide, tungsten carbide, titanium nitride, titanium carbonitride and titanium carbide.

A system includes a housing having a front panel, a substrate that is positioned at a distance from the front panel, and a data processor mounted on the substrate. The system includes a pluggable module having an optical module, at least one first optical connector, a first fiber optic cable optically coupled between the optical module and the first optical connector, and a fiber guide positioned between the optical module and the first optical connector and provides mechanical support for the optical module and the first optical connector. The optical module receives optical signals from the first optical connector and generates electrical signals based on the received optical signals, and the electrical signals are transmitted to the data processor. The pluggable module has a shape that enables the pluggable module to pass through an opening in the front panel to enable the optical module to be coupled to the substrate.

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.

An optical fiber connector introducing a redesigned inner housing that replaces the conventional, expensive ferrule assembly with a simpler, unitary, single-piece inner housing body. The inner housing defines a ferrule receiving socket and an optical fiber conduit extending along a longitudinal centerline axis, with a first end and a second end. The inner housing can be molded over a ferrule, with a free end of the ferrule extending beyond the second end of the inner housing. The connector further includes a sliding outer housing disposed over the inner housing, comprising an elongated body with a longitudinal bore extending between a first end and an opposite second end, the second end being configured to mate with a coupling housing.

The invention discloses a functional magnetic stimulation therapeutic apparatus, and particularly relates to the technical field of medical equipment, the functional magnetic stimulation therapeutic apparatus comprises a device body, the device body is internally provided with a cavity, the cavity is internally provided with a safety disc, a catheter is a novel optical fiber catheter and can be used for measuring the pressure of the tail end of an IAB catheter, and the safety disc is arranged in the cavity. The optical fiber catheter transmits optical signals and is almost free of electromagnetic interference, the catheter is directly connected to the device connector, a pressure electric connector is not needed, connecting parts are reduced, the potential risk of infection is reduced, and the catheter can be used for heart failure or cardiac surgery patients with severe illness states and possibly low immunity. Complication caused by catheter related infection can be effectively reduced, the helium bottle extends into the clamping opening, an opening of the helium bottle is communicated with the connecting opening, then the cylindrical fixing block can be pressed to extrude the clamping block on the clamping piece, then the cylindrical fixing block can be fixed by rotating the threaded fixing block, and therefore the helium bottle can be rapidly fixed.

The utility model provides a laser emitting device and laser ablation equipment, and relates to the technical field of laser equipment. Wherein the laser emitting device comprises a laser emitting module, a laser conduction module and a conduit connector; the transmitting end of the laser transmitting module is connected with the conduit connector through the laser conduction module; the laser conduction module comprises an adjustable optical assembly and a light guide arm; the adjustable optical assembly is used for adjusting the spot size of the laser emitted from the laser emission module; the laser emission module, the adjustable optical assembly and the light guide arm are connected in sequence, or the laser emission module, the light guide arm and the adjustable optical assembly are connected in sequence; the conduit connector is used for connecting an optical fiber conduit; the light spot size is adjusted through the adjustable optical assembly, the laser transmission efficiency is improved, the light guide arm is used, the use length of the guide pipe is reduced, and the cost is reduced.

The present invention provides a fiber sensor and a fiber measuring method with which it is possible to measure the texture of a fiber by a simple operation.　A fiber sensor (AA) has one or a plurality of measurement units (10). The measurement unit (10) has: a plate-shaped frame (20); a fiber guide (30) having an introduction part and a terminal part formed in the frame (20); a contactor (40) that comes into contact with a fiber inserted into the fiber guide (30); a support body (50) that supports the contactor (40) so as to be displaceable with respect to the frame (20); and a displacement detector that detects displacement of the contactor (40) with respect to the frame (20). The texture of the fiber can be measured by a simple operation of inserting the fiber into the fiber guide (30) and scanning with the fiber sensor (AA).

The application provides a cooling sleeve, which comprises an inner tube, an optical fiber arranged in the inner tube, a first contact part formed between the outer wall of the optical fiber and the inner wall of the inner tube, an axial gap between adjacent first contact parts, a second contact part formed between the inner wall of the outer tube and the outer wall of the inner tube, an axial gap between adjacent second contact parts, a proximal end of the first circulation channel and a proximal end of the second circulation channel communicated to form a backflow cavity, and a distal end of the first circulation channel and a distal end of the second circulation channel respectively communicated with the outside. The application also provides an optical fiber guide tube with the cooling sleeve. The application has the advantages of ingenious design and coaxial self-supporting of the inner tube, the outer tube and the optical fiber.

Lens arrays, fiber optic fixtures that include the lens arrays, probe systems that include the fiber optic fixtures, and methods of forming fiber optic fixtures are disclosed herein. The lens arrays are configured to convey a plurality of electromagnetic signals between a plurality of fiber optic conduits of a fiber optic fixture and a plurality of optical devices of a device under test (DUT). The lens arrays include a single lens block that defines a fixture-attached block side and a lensed block side. The fixture-attached block side is configured to face toward, and be operatively attached to, a fixture body of the fiber optic fixture. The lensed block side differs from the fixture-attached block side. The lens arrays also include a plurality of lenses defined on the lensed block side.

The invention provides an optical fiber catheter and a preparation method and application thereof, and belongs to the technical field of medical instruments. The optical fiber catheter provided by the invention comprises a catheter and an optical fiber, the optical fiber is bonded on the outer wall of the catheter through a medical adhesive along the length direction of the catheter; the inner diameter of the guide pipe ranges from 0.4 mm to 0.7 mm. The outer diameter of the conduit is 0.5 to 1mm; the area, 4-6 mm away from the tail end, of one end of the optical fiber is a luminous area. The catheter with the specific inner diameter and outer diameter is adopted, and meanwhile the light transmission efficiency and the light emitting uniformity of the optical fiber catheter are improved. The result of the embodiment shows that the optical transmission efficiency of the optical fiber catheter is 92%, and the light emitting uniformity is 90%.

An apparatus for laser treatment, which may provide precise laser treatment in a body, the apparatus for laser treatment including: a light irradiation unit including an optical fiber; a catheter having an expansion fixing portion into which the optical fiber is inserted; a sensor monitoring unit including a plurality of sensors provided in the catheter; and a controller receiving measurement information from the sensor monitoring unit and controlling the light source Furthermore, the plurality of sensors include a shape information sensor inserted together with the optical fiber and configured to obtain internal shape information of the tubular tissue in a position of an optical fiber end to which light is irradiated, and in a cross-section, perpendicular to a longitudinal direction of the catheter, the shape information sensor is disposed in a central portion, together with the optical fiber.

The invention discloses a high-power MOEMS optical switch integrated with a coated optical fiber and a plug-in mounting and fixing method of the high-power MOEMS optical switch. The high-power MOEMS optical switch comprises a shell, a chip arranged in the shell and an optical fiber set inserted into the chip through an optical fiber guide pipe. The optical fiber group comprises an input optical fiber and an output optical fiber; the output end face of the input optical fiber and the input end face of the output optical fiber are each provided with three film layers to improve the laser thermal damage resistance of the end faces of the optical fibers, the first layer is made of a low-refractive-index material SiO2, the second layer is made of a high-refractive-index material HfO2, and the third layer is made of SiO2. According to the method, the optical fiber film layer can be prevented from being scratched, peeled off or polluted in the assembling process, the risks of optical axis deviation and bare fiber breakage are reduced, the packaging stability of the MOEMS optical switch in high-power laser transmission is improved, and the service life of the MOEMS optical switch in high-power laser transmission is prolonged.

The utility model discloses an optical fiber bending adjusting device. The optical fiber bending adjusting device comprises a shell, an optical fiber conduit, a rotating structure, a transmission assembly and two pulling ropes, the rotating structure is rotationally connected with one end part of the shell; the transmission assembly comprises a first transmission part, a second transmission part and a third transmission part which are in transmission connection in sequence. Thus, the two pulling ropes are arranged at the end of the optical fiber catheter, the other ends of the two pulling ropes are fixed to the first transmission part and the third transmission part respectively, then the first transmission part is driven to move through the rotating structure, the first transmission part drives the second transmission part to rotate, and the second transmission part drives the third transmission part to move. The moving directions of the first transmission part and the third transmission part are opposite, so that the two traction ropes are tensioned one by one and loosened one by one, the optical fiber catheter is driven to be bent, the optical fiber is arranged in the optical fiber catheter in a penetrating manner, the optical fiber is bent along with the optical fiber catheter, and the problem that the bending of the optical fiber cannot be adjusted in a hard endoscope is solved; and the difficulty of a medical operation is reduced.

This application discloses an optical fiber conduit and a laser ablation device. By setting the input end face of the optical fiber module as an inclined plane, different laser beams emitted from the laser module are refracted into the optical fiber body from different positions on the input end face. Therefore, different laser beams undergo multiple total internal reflections at different positions within the optical fiber body, and ultimately exit from the output end along the axial direction inclined to the optical fiber body, forming annular light spots. Therefore, compared to existing technologies that require a conical structure at the output end to achieve an annular light spot, this application achieves an annular light spot simply by setting the input end as an inclined plane, eliminating the need for complex conical and protective structures at the output end. This simplifies the processing steps at the output end, controls costs, and maintains the same fiber diameter between the output end and the optical fiber body, allowing the optical fiber conduit to meet the needs of smaller diameter vein laser closure surgeries.

Lens arrays, fiber optic fixtures that include the lens arrays, probe systems that include the fiber optic fixtures, and methods of forming fiber optic fixtures are disclosed herein. The lens arrays are configured to convey a plurality of electromagnetic signals between a plurality of fiber optic conduits of a fiber optic fixture and a plurality of optical devices of a device under test (DUT). The lens arrays include a single lens block that defines a fixture-attached block side and a lensed block side. The fixture-attached block side is configured to face toward, and be operatively attached to, a fixture body of the fiber optic fixture. The lensed block side differs from the fixture-attached block side. The lens arrays also include a plurality of lenses defined on the lensed block side.

A catheter system (100) for treating a treatment site (106) within or adjacent to a blood vessel (108) includes a power source (124), a light guide (122) and a plasma target (242). In various embodiments, the light guide (122) receives power from the power source (124). The light guide (122) has a distal tip (244), and the light guide (122) emits light energy (243) in a direction away from the distal tip (244). The plasma target (242) is spaced apart from the distal tip (244) of the light guide (122) by a target gap distance (245). The plasma target (242) is configured to receive light energy (243) from the light guide (122) so that a plasma bubble (234) is generated at the plasma target (242). The power source (124) can be a laser and the light guide (122) can be an optical fiber. The catheter system (100) can also an inflatable balloon (104) that encircles the distal tip (244) of the light guide (122). The plasma target (242) can have a target face (1672) that receives the light energy (243) from the light guide (122). The plasma target (242) can be formed from one or more of tungsten, tantalum, platinum, molybdenum, niobium, iridium, magnesium oxide, beryllium oxide, tungsten carbide, titanium nitride, titanium carbonitride and titanium carbide.

The present invention relates to an auxiliary motion device, a driving system and a control method, and belongs to the technical field of ablation surgical devices. An auxiliary motion device comprises a frame, a motion component and a driving component; the motion component is arranged on the frame, and the motion component realizes linear and / or rotational motion under the drive of the driving component; the driving component comprises a manual driving part and a fully automatic driving part; wherein the manual driving part is used to realize manual control of the motion component; the fully automatic driving part is used to realize fully automatic control of the motion component. The present invention realizes the synchronous linear motion and rotational motion of the optical fiber catheter, and improves the control accuracy of the linear displacement and the rotation angle by means of screw rod and gear meshing; the driving component has a dual driving source, which can realize both manual adjustment of the optical fiber catheter and fully automatic adjustment of the optical fiber catheter.

The invention discloses an optical fiber conduit based on grating effect band temperature monitoring, and relates to the technical field of optical fiber conduits. The optical fiber conduit module is used for transmitting laser with different wavelengths and irradiating the laser in a preset area; the optical fiber temperature sensor is arranged at a laser exit port of the optical fiber conduit module and is used for feeding back a wavelength change value in the preset area in real time; and the optical fiber temperature demodulation module is connected with the optical fiber temperature sensor on an optical path and is used for demodulating the temperature change value in real time according to the wavelength change. The temperature information of the laser irradiation area is measured in real time while laser outputs energy, the safety in the laser thermal therapy process is improved, and the healing speed of the laser irradiation area is increased.

The application discloses a kind of optical fiber catheter and laser ablation device.The application is by being arranged the core diameter of first optical fiber is greater than second optical fiber, so that multiple second optical fibers have greater bending radius relative to first optical fiber, and connector is set at the end of first optical fiber away from multiple second optical fibers, handle is connected on multiple second optical fibers, and is spaced from connector, so that multiple second optical fibers passing through handle and away from the end of connector are optical fiber portions entering patient's body and have greater bending radius, multiple second optical fibers between connector and handle, or first optical fiber and multiple second optical fibers are optical fiber portions not entering patient's body, since at least part is multiple second optical fibers, so also have greater bending radius, so as to meet the bending of the optical fiber unit portion entering patient's body by surgical operator, and then reduce the operation influence to surgical operator, and thereby improve the efficiency of operation.

The utility model discloses a flame detection optical fiber protective sleeve device, which relates to the technical field of flame detection device protection and comprises a front connecting pipe, a mounting pipe, a cooling air pipe connector and a locking end cover. Wherein supporting ribs are arranged on the inner wall of the front connecting pipe, and a baffle ring is arranged at the front end of the front connecting pipe; the tail end of the front connecting pipe is connected with the front end of the mounting pipe; the cooling air pipe coupler is of an inclined Y-shaped three-way structure, a fixing ring is arranged at the front end of the inclined Y-shaped three-way structure, and the tail end of the mounting pipe is connected into the fixing ring; two tail ends of the inclined Y-shaped three-way structure are respectively connected with a cooling air pipeline and a locking end cover; the supporting rib is used for supporting the flame detection optical fiber penetrating into the front coupling pipe; and the locking end cover is used for locking the flame detection optical fiber. The technical problem that dust is easily accumulated at the front end of the flame detection optical fiber conduit in the prior art is solved.

A fiber optic connector that may be configured to mitigate against signal degradation when the connector is exposed to significant temperature fluctuations. The connector may include a fiber coupler that optically couples an optical fiber and a fiber portion. The fiber coupler may include a fiber guide, and a biasing member that may be configured to bias the fiber guide axially in at least a portion of the fiber coupler between a first position and a second position. The fiber guide may be configured to align respective ends of the optical fiber and the fiber portion. The fiber guide may configured to be released to permit the biasing member to move the fiber guide from the first position to the second position such that the end of the optical fiber may be biasingly urged to contact with the end of the fiber portion so as to biasingly maintain optical coupling between the optical fiber and the fiber portion and mitigate against signal loss by biasingly urging against movement of the end of the optical fiber relative to the end of the fiber portion during operation of the connection and when the connector is exposed to significant temperature fluctuations.

The present invention provides a cooling sleeve comprising an inner tube. An optical fiber is disposed within this inner tube. Where the outer wall of the optical fiber contacts the inner wall of the inner tube, several axially extending contact points are formed, and a first circulation channel is formed between each pair of adjacent contact points. The inner tube is disposed within an outer tube. Where the inner wall of the outer tube contacts the outer wall of the inner tube, several axially extending contact points are formed, and a second circulation channel is formed between each pair of adjacent contact points. The proximal ends of the first circulation channels and the proximal ends of the second circulation channels communicate with each other at the proximal end of the outer tube to form a reflux cavity.The distal ends of the first circulation channels and the distal ends of the second circulation channels communicate independently with the outside. The present invention also provides a fiber optic catheter with a cooling sheath. The concept of the present invention is ingenious, and coaxial support between the inner tube, the outer tube, and the fiber optic cable is achieved through contact between the three.

The invention relates to the technical field of medical equipment, in particular to a laser lithotripsy system, a use method and an optical fiber catheter preparation method. The laser lithotripsy system comprises a visual catheter used for stretching into a calculus area, and a cavity channel is formed in the visual catheter; the optical fiber conduit is movably arranged in the cavity channel of the visible conduit in a penetrating manner, a laser optical fiber and an irrigation branch pipe are fixedly arranged in the optical fiber conduit, the head end of the laser optical fiber extends out of the optical fiber conduit and crosses the water outlet end face of the irrigation branch pipe, and the spacing distance between the head end face of the laser optical fiber and the water outlet end face of the irrigation branch pipe is within a preset range. According to the invention, the same-position and same-point synchronous targeted conveying of cooling water to laser heat generation points is realized, and the damage to tissues caused by high-speed vortex of stone fragments due to increase of intra-kidney pressure caused by excessive perfusion and decompression of a large amount of water exchange return water is effectively avoided; therefore, the clinical pain point of iatrogenic diseases caused by too high intrarenal pressure, heat injury and stone vortex injury existing in a thermal laser lithotripsy operation for a long time is thoroughly solved.

The utility model discloses a laser optical fiber catheter and medical equipment, and relates to the technical field of medical instruments. The laser fiber catheter comprises a light transmission main body and a reinforcing piece, the near end of the light transmission main body is suitable for being connected with a laser light source, and the far end of the light transmission main body is suitable for extending into a blood vessel; the reinforcing part is arranged on the optical transmission main body and at least used for reinforcing the far-end hardness of the laser optical fiber catheter, and the length of the reinforcing part is smaller than that of the optical transmission main body. The structure of the laser optical fiber catheter is improved, the compliance of the laser optical fiber catheter is improved, the laser optical fiber catheter can adapt to different conditions of various blood vessels, especially complex blood vessel conditions, and the operation convenience of medical staff is effectively improved.

The utility model discloses a laser emission structure, an optical fiber catheter and an ablation treatment device, and relates to the technical field of vein ablation. The laser emission structure comprises a fiber core, a light transmitting piece and a heat shrink tube. The fiber core is provided with a light-emitting end; the light transmitting piece covers the light emitting end of the fiber core; the heat shrink tube is arranged on the peripheral wall of the fiber core and attached to the inner wall of the light-transmitting piece, and the fiber core, the heat shrink tube, the light-transmitting piece and the cut-off face of the protective layer of the optical fiber guide pipe are suitable for being defined to form a glue groove used for being filled with glue, so that the light-transmitting piece is fixed to the light-emitting end of the fiber core in an adhesive mode through the glue. According to the utility model, the structure of the transmitting end of the optical fiber catheter is improved, the coaxiality of the optical fiber and the capillary tube is ensured, glue can be effectively prevented from permeating into the cone, the firmness of the transmitting end of the optical fiber catheter is improved, the reliability is better, and the treatment effect and the operation safety are ensured.

The invention relates to the technical field of experimental animal operation auxiliary equipment, in particular to an adjustable multispectral mouse trachea cannula positioner which comprises a handheld main control unit, an optical fiber catheter and optical component system, a snakelike positioning support assembly, an imaging and spectral analysis module and a multi-mode feedback system. The handheld main control unit generates a light signal with adjustable wavelength, receives and processes imaging data and spectral data and generates a glottis state recognition result, the optical fiber catheter and optical component system guides the light signal to a mouse glottis area and collects a reflected light signal, and the S-shaped positioning support assembly supports the optical fiber catheter and optical component system and transmits the light signal to the mouse glottis area. And an adjustable bending angle and a locking mechanism are provided. The imaging and spectral analysis module collects image information and spectral reflection information of a glottis area, the multi-mode feedback system generates visual, auditory and tactile feedback signals based on a glottis state recognition result, and the glottis positioning accuracy is improved to 98% from about 72% of a traditional method.