35 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.

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.

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.

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 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.

The utility model provides a laser fiber bundle assembly tool, which is used for assembling a laser fiber bundle, the laser fiber bundle comprises an inner tube extending along the axial direction and a plurality of optical fibers tightly arranged around the inner tube, the assembly tool comprises a first shaping piece, a second shaping piece and a rotating device, the first shaping piece and the second shaping piece are provided with sleeve structures, and the rotating device is provided with a rotating shaft. The inner tube positioning cavity and the optical fiber positioning cavity extend in the axial direction, the inner tube positioning cavity is used for penetrating through an inner tube, the optical fiber positioning cavity is used for penetrating through a plurality of optical fibers, the first shaping piece and the second shaping piece are sleeved at intervals and fix the inner tube and the optical fibers, and the rotating device can clamp the second shaping piece and drive the second shaping piece to rotate around the axis relative to the first shaping piece. And the plurality of optical fibers between the first shaping piece and the second shaping piece are twisted by 15-45 degrees along the circumferential direction. According to the assembly tool provided by the utility model, the optical fiber bundle is twisted, so that the optical fibers can be tightly arranged, the radial size of the optical fiber bundle is reduced, and the trafficability of an optical fiber conduit is improved.

The utility model relates to a laser ablation and injection, flushing and puncture combined guide auxiliary treatment handle, which belongs to the technical field of laser ablation and comprises a guide needle body, the guide needle body comprises an optical fiber front catheter and an injection front catheter, and the outer side of the optical fiber front catheter is connected with the outer side of the injection front catheter; the outer side of the optical fiber front guide pipe is sleeved with an optical fiber guide pipe in a clamped mode, and the optical fiber guide pipe and the optical fiber front guide pipe are coaxial. A puncture point is determined through ultrasonic probing of the size of a focus, one end of the guide needle body is punctured into a focus vascular cavity under ultrasonic guidance, the laser optical fiber sequentially penetrates through the optical fiber catheter and the optical fiber front catheter, one end of the laser optical fiber is moved into the focus vascular cavity for ablation, and then the needle head is used for sucking hematocele in the focus. And lauromacrogol foam is prepared, the lauromacrogol foam is injected into the injection tube from the threaded inlet by using an injector, and the lauromacrogol foam is injected into the focus by the injection tube for hardening injection embolism, so that the optimal treatment effect is achieved, and the treatment frequency is reduced.

The invention relates to the technical field of medical instruments, in particular to integrated optical fiber catheter type pathological sampling forceps. The invention discloses an integrated optical fiber catheter type pathological sampling clamp which comprises an outer catheter, an optical fiber, optical fiber tweezers and a capsule shell. The optical fiber is sleeved in the outer conduit; the first end of the optical fiber extends out of the first end of the outer catheter and is used for being connected with controllable laser. The capsule shell is arranged at the second end of the outer catheter; the second end of the optical fiber extends into the capsule shell from the second end of the outer catheter; the optical fiber tweezers are arranged at second ends of the optical fibers. The flexible micro gripper based on light driving is applied to pathological sampling and serves as sampling tweezers, the sampling action is adjusted through laser, and the flexible strength is provided to reduce destructive damage to the focus.

Connecting device (100, 300) for connecting an end (11) of a first optical fiber conduit (10) to an end (21) of a second optical fiber conduit (20), wherein the first optical fiber conduit (10) and the second optical fiber conduit (20) are configured to accommodate an optical fiber (30), comprising: a carrier unit (110) with a bottom (111) and a top (112); a lid unit (120) with a bottom (121) and a top (122); where the carrier unit (110) and the cover unit (120) have a first and second receiving opening (113, 114, 213, 214) formed at each end face for receiving the ends (11, 21) of the first optical fiber conduit (10) and the second optical fiber conduit (20), and the carrier unit (110) has a first groove (115) on its upper side (112) extending in the direction of extension of the carrier unit (110) from the first receiving opening (113) to the second receiving opening (114), and the cover unit (120) has a further groove (215) on its lower side (121) extending in the direction of extension of the cover unit (120) from the first receiving opening (213) to the second receiving opening (214), and wherein the cover unit (120) can be mounted on the carrier unit (110) and the first groove (115) and the further groove (215) in the extension direction of the cover unit (120) and the carrier unit (110) form a guide channel for receiving the optical fiber cable (30) in the mounted state, characterized by the fact that the guide channel forms a continuous cylindrical cavity with a specific inner diameter that is smaller than the formed inner diameter of the first receiving opening (113, 213) and the second receiving opening (114, 214) when the cover unit (120) is mounted on the carrier unit (110).

The utility model discloses a coupler and medical equipment, and relates to the technical field of medical instruments. The coupler comprises a coupling body and a position sensor. The input interface and the output jack are respectively communicated with the coupling cavity, the input interface is suitable for being externally connected with a light source, and the output jack is suitable for being inserted by a plug of an optical fiber conduit; the position sensor is arranged at the output jack and is used for detecting whether a plug of the optical fiber conduit inserted into the output jack is inserted in place. According to the utility model, the structure of the coupler is improved, the phenomenon that the plug of the optical fiber conduit is not plugged in place can be avoided, the accuracy of laser output energy can be improved, and the convenience of operation is greatly improved at the same time.

The invention relates to a holder (26) for a cable, in particular for a fiber optic guide tube (8), with a mounting base (30), at least two retaining legs (36, 38) which define between them a receiving channel (40) for the cable, which narrows from an open end towards the mounting base, characterized in that a fixing channel is provided in the retaining legs (36, 38) through which a cable tie (54) can be guided, and that at least one of the retaining legs (36, 38) is provided with a cutting edge (52) projecting into the receiving channel.The invention also relates to an assembly comprising a housing, for example for a fiber optic network distributor (10) or a junction box, at least one support (26) and at least one cable which is received in the receiving channel (40), wherein a cable tie (54) is provided which extends around the abutment (60) and the cable and presses the cable into the narrowing receiving channel and against the cutting edge (52).

This application discloses an optical fiber catheter and a laser ablation device. In the optical fiber catheter of this application, the input end face of the optical fiber module is set as an inclined plane relative to the radial direction of the optical fiber body, and a light-emitting unit is formed circumferentially near the output end of the optical fiber body. This allows a portion of the laser light to be emitted obliquely outward from the light-emitting unit, forming a first annular spot, and another portion of the laser light to be emitted from the output end along the axial direction inclined to the optical fiber body, forming a second annular spot. This effectively disperses the output laser energy while simultaneously allowing for pre-contraction of the vascular area requiring closure using the first annular spot, followed by closure using the second annular spot. This results in gentler laser energy for ablation and closure of the blood vessel, effectively increasing the treatment area, thereby improving the ablation closure rate and surgical success rate, and reducing the risk of patients requiring secondary treatment.