33 results about "Laser lithotripsy" patented technology

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

The utility model belongs to the technical field of laser lithotripsy, and discloses an in-vitro laser lithotripsy efficiency detection device. The device comprises a container, a liquid injection mechanism and a collector, the container is provided with a first opening and a second opening, the first opening is used for inserting a laser fiber, the second opening is located at the bottom of the container, the liquid injection mechanism is communicated with the container and can inject liquid into the container, and the collector is provided with a third opening and at least one fourth opening. The third opening is formed in the top of the collector, the fourth opening is formed in the bottom of the collector, the third opening is communicated with the fourth opening, the second opening is communicated with the third opening, and the size of the fourth opening is not larger than that of the second opening. By means of the device, in-vivo lithotripsy conditions can be simulated, so that detection is closer to clinical practical operation, particles obtained after lithotripsy can be distinguished according to the size, the lithotripsy effect of laser lithotripsy is evaluated, and parameter setting of clinical practical operation can be guided easily.

To monitor conditions of media proximate to an endoscopic treatment or diagnostic site in real time.SOLUTION: Disclosed herein are systems and methods for monitoring a condition associated with a medium proximate to a target region. The system comprises a surgical laser, and a surgical fiber coupled to the surgical laser for delivering laser light to a target region and receiving at least a portion of the laser light reflected from the target region. The system further comprises a processor configured to analyze the collected reflected laser light and determine, based at least in part on the analysis of the reflected laser light, a value of a parameter associated with the medium proximate to the target region.SELECTED DRAWING: Figure 5

The invention belongs to the technical field of urinary devices, and particularly relates to a urinary calculus breaking and removing device based on intelligent positioning and an operation method.The urinary calculus breaking and removing device comprises a thick tube part, a thin tube part arranged at the front end of the thick tube part and a probe part arranged at the front end of the thin tube part; the lithotripsy mechanism is composed of a laser lithotripsy probe and an electric control module, and the operation end of the electric control module penetrates through the thin pipe part and extends into the thick pipe part; by arranging the intelligent positioning and tracking unit, the endoscope camera shooting recognition module, the miniature ultrasonic probe and the posture sensing module, the problems that a traditional operation is large in positioning error and has a view blind area are solved, the calculus positioning accuracy is greatly improved, the ureter mucosa injury risk caused by positioning deviation is reduced, and the operation safety is improved. A double-calculus-removing structure composed of the clamping jaw mechanism and the negative-pressure adsorption assembly is arranged, calculus removing, namely calculus removing, is achieved through cooperation of the clamping jaw mechanism and the negative-pressure adsorption assembly, the pain point that fragments are prone to remaining in a traditional operation is solved, and secondary operation is not needed.

The application discloses a urinary calculus crushing parameter optimization method and system based on multi-modal pathological feature fusion, relates to the technical field of health information science, and extracts a preoperative feature vector F of a patient before operation, and calculates a theoretical fragmentation energy efficiency I according to the preoperative feature vector F, so as to generate an initial laser lithotripsy parameter P, thereby improving the initial accuracy and scientificity of treatment. In the operation, the original signal data set DSA is generated by collecting acoustic signals through a miniature hydrophone, and the pulse fragmentation efficiency η at the time t is calculated t , and the pulse fragmentation efficiency sequence SSEQ is constructed, the objective and real-time quantification of the lithotripsy effect is realized, and the limitation of visual observation is overcome. Finally, the state evaluation result is generated by comparison, and the laser lithotripsy parameter optimization strategy is executed, adaptive regulation is constituted, and the efficiency and safety of the whole operation are ensured.

Steering handles with manifolds that enable an operator to configure an endoscopic system in situ for a variety of tasks, including irrigation, aspiration, or both. In addition, the disclosed endoscopic systems facilitate rapid reconfiguration of the location of a laser fiber optic within a catheter assembly. The laser fiber optic, for example, can be removed from an irrigation channel of the endoscopic system and reinserted in the aspiration channel during a laser lithotripsy procedure. In some embodiments, the removal and reinsertion can be performed in situ, without removing the catheter from the patient or the treated organ. These aspects of the disclosed system reduce the time required to perform laser lithotripsy procedures, with less trauma to the patient.

Steering handles with manifolds that enable an operator to configure an endoscopic system in situ for a variety of tasks, including irrigation, aspiration, or both. In addition, the disclosed endoscopic systems facilitate rapid reconfiguration of the location of a laser fiber optic within a catheter assembly. The laser fiber optic, for example, can be removed from an irrigation channel of the endoscopic system and reinserted in the aspiration channel during a laser lithotripsy procedure. In some embodiments, the removal and reinsertion can be performed in situ, without removing the catheter from the patient or the treated organ. These aspects of the disclosed system reduce the time required to perform laser lithotripsy procedures, with less trauma to the patient.

The present disclosure provides an endoscopic laser lithotripsy device and a method for such a device, wherein image acquisition, laser emission, illumination and / or image processing are configured to mitigate distortion in captured images caused by the laser.

1. The name of the design product: air-cooled laser. 2. The use of the design product: for output laser light source, can carry out laser welding, laser cutting and laser lithotripsy, etc. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.

This invention provides a ureteroscopic irrigation catheter, belonging to the field of medical device technology. The ureteroscope includes a scope body and a tubing. An imaging probe is installed at the end of the tubing. An infusion catheter is inserted through the tubing, and the gap between the catheter and the inner wall of the tubing forms a return channel. The inner wall of the catheter is equipped with a spiral flow-guiding structure to generate centrifugal force to evenly disperse the water flow. This invention systematically solves the problems of thermal damage and visual interference in ureteroscopic holmium laser lithotripsy through fluid dynamics optimization and a dual-channel drainage structure, combining clinical safety and ease of operation.

An outer opening of the negative-pressure stone basket and a connecting part of the negative-pressure stone basket are arranged in the area, close to the top end, of the head of the endoscope catheter in a sleeving mode, a plurality of water inlet channels are formed in the position close to an inner opening of the negative-pressure stone basket, and the water inlet channels are distributed in the circumferential direction of the inner opening of the negative-pressure stone basket. Water flow can enter the water inlet channel through the outer opening of the water inlet channel due to negative pressure suction of the inner cavity of the negative-pressure stone basket containing part and then enters the inner cavity of the negative-pressure stone basket containing part through the inner opening of the water inlet channel, during laser lithotripsy operation, water enters an endoscope sheath gap between the sheath tube and the endoscope catheter, the working channel of the endoscope catheter is connected with negative pressure, and the working channel of the endoscope catheter is connected with negative pressure. The inner opening of the negative pressure stone basket is close to or tightly attached to a target stone, the optical fiber extends out of the inner opening of the working channel of the endoscope catheter to touch or be adjacent to the target stone to release energy to damage the stone, and water flow continuously enters the inner cavity of the containing part of the negative pressure stone basket through the water inlet channel due to negative pressure suction. And the heat energy generated by the stone powder and the laser is discharged out of the body along with the water flow through an endoscope catheter working channel.

A steering handle with a manifold enables an operator to configure the endoscopic system in situ for a variety of different tasks, including irrigation, aspiration, or both. In addition, the disclosed endoscope system facilitates rapid reconfiguration of the position of the laser fiber within the catheter assembly. For example, a laser fiber may be removed from a lavage channel of an endoscopic system and reinserted into a suction channel during a laser lithotripsy procedure. In some embodiments, removal and reinsertion may be performed in situ without removing the catheter from the patient or the organ being treated. These aspects of the disclosed system reduce the time required to perform a laser lithotripsy procedure, with less trauma to the patient.

A lithotripsy system to deliver laser energy from one or more laser sources to a stone (e.g., to move the stone) includes a capture portion, a first laser node, and a second laser node. The capture portion is configured to move from a storage state to a deployed state. In the deployed state, the capture portion is configured to at least partially enclose the stone. The first laser node and the second laser node are coupled to the capture portion and are configured to deliver laser energy to the stone, and the first laser node is spaced apart from the second laser node.

This invention relates to the field of medical device technology, and in particular to an integrated device for lithotripsy and stone removal of kidney stones with adjustable aperture, comprising an integrated tube; the integrated tube further comprises a lithotripsy module and a lithotripsy extraction module, and the other end of the lithotripsy module and the lithotripsy extraction module are connected to a pressure regulating module, which is used to adjust the air pressure in the internal pipes of the lithotripsy module and the lithotripsy extraction module respectively; during the lithotripsy and stone removal process, there is no need to repeatedly change the device, which can reduce damage to the patient and improve the efficiency of lithotripsy and stone removal. A flexible connector is provided between the laser lithotripsy probe and the connecting tube, and a first flexible air tube is arranged on its outer side; by injecting air into the first flexible air tube at different positions through the external pressure regulating module, air pressure difference is formed in each air tube, driving the controllable cover to bend, thereby driving the laser lithotripsy probe to deflect, realizing the adjustable probe angle, which facilitates precise fragmentation of stones at different positions and ensures the quality of lithotripsy.

An intraluminal device for transmitting pressure waves includes a flexible elongate member configured for positioning within a body lumen. The flexible elongate member includes an outer sheath having a sealed distal end, a reaction chamber, and a sealed acoustic window. The flexible elongate member also includes an optical fiber configured to be coupled to a light source and translate longitudinally within the outer sheath. When the reaction chamber is filled with a photoreactive fluid, the light beam emitted by the optical fiber causes the photoreactive fluid to generate a set of pressure waves that are delivered to a location of the body cavity via the sealed acoustic window. The sealed acoustic window and the sealed distal end prevent photoreactive fluid from entering the body cavity.

The application provides a laser lithotripsy system, and relates to the technical field of endoscopes. The laser lithotripsy system comprises a catheter assembly, a visual assembly and a laser light guide assembly. The catheter assembly has a distal end, a proximal end and a plurality of channels. The plurality of channels are arranged from the distal end to the proximal end and extend through the catheter assembly. The visual assembly has a probe end. The probe end is arranged in one of the channels. The visual assembly is used for acquiring an image of the distal end of the catheter assembly. The laser light guide assembly has a laser exit end. The laser exit end is arranged in one of the channels. The laser light guide assembly is used for transmitting a lithotripsy laser to the distal end of the catheter assembly. The application can introduce the laser lithotripsy technology into an ERCP operation to replace the use of a lithotripsy basket, and the operation efficiency is high.

The invention relates to an in-vitro device and an evaluation method for evaluating a heat effect in a laser lithotripsy process, and the in-vitro device comprises a urinary tract simulation assembly which at least comprises a ureter simulation tube and is used for simulating a ureter on which calculi grow; the lithotripsy assembly is used for performing laser lithotripsy on the calculus from one end of the ureter simulation tube and is mounted on the urinary tract simulation assembly; the body temperature simulation assembly is used for simulating the human body temperature environment, and the urinary tract simulation assembly is installed in the body temperature simulation assembly; and the monitoring assembly is used for monitoring the heat effect in the stone crushing process. The device can effectively simulate and reflect the real heat effect of laser treatment in the clinical operation process, and provides more accurate guidance for the treatment process.

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 invention discloses a disposable ureter lithotripsy and discharge system and device, and belongs to the technical field of urinary surgery minimally invasive surgical instruments, and the system comprises an acquisition module which is used for obtaining a pressure value and a temperature value in a ureter; a peristaltic pump; filling a drainage tube; the filling module is used for controlling the filling flow through the filling pump according to the pressure value and the temperature value; a suction pump; a first suction drainage tube; a second suction drainage tube; the suction module is used for controlling the suction flow of the second suction drainage tube through the suction pump according to the pressure value and the temperature value; the disposable ureter lithotripsy and calculus discharging system and device are used in a laser lithotripsy operation, intelligent temperature and pressure measurement is achieved, compared with a traditional host, perfusion flow and suction pressure are regulated in real time in the operation, clear view and nephrology safety are maintained, the pressure in the pelvis is regulated through perfusion flow, the negative pressure suction sheath is tightly attached to the lithotripsy part, fragments are adsorbed in real time and sucked out of the body, and the operation efficiency is improved. And residues are reduced.

The application relates to the technical field of endoscopes, in particular to an endoscope insertion part, an endoscope and a lithotripsy system. The endoscope insertion part comprises a pipe body and a suction channel. The proximal end of the suction channel is used for connecting a negative pressure source. The suction channel comprises a pre-bending section at the distal end. The suction channel is slidably connected with the pipe body in the axial direction to realize the adjustment of the length of the pre-bending section extending out of the distal end of the pipe body. The pre-bending section has a preset included angle with the axial direction of the pipe body in the direction of extending out of the distal end of the pipe body. The preset included angle is an acute angle. For the stones in the lower calices, the endoscope insertion part can not enter the lower calices, but the target stones are adsorbed and fixed by the negative pressure in the suction channel, then the target stones are pulled to the distal end surface of the endoscope insertion part through the suction channel, and the laser lithotripsy operation on the target stones can be carried out, so that the efficient treatment of the stones in the lower calices is realized, and the operation safety in the lithotripsy process is improved.

To provide a medical system, device, and method for performing laser lithotripsy on patients. [Solution] The medical device is configured to advance along the patient's urinary tract, and the system 100 further includes a console 110. The console includes one or more processors 160 and logic stored in memory 165. The logic, when executed by one or more processors, causes the system to perform the following actions: (i) project coherent light onto a kidney stone in the patient, away from the distal end; (ii) receive a reaction light signal emitted from the kidney stone in response to the coherent light; and (iii) process the reaction light signal to determine the material composition of the kidney stone. The system is also configured to project coherent light onto the kidney stone to induce fragmentation of the kidney stone, and the operation settings of the coherent light can be based on the determined composition of the kidney stone.

The utility model belongs to the technical field of laser lithotripsy instruments, and particularly relates to an endoscopic laser fixator which comprises a holding portion, a controller, an extension rod and a working portion. The holding part and the extension rod are arranged along an axis; one end of the controller is slidably connected with the holding part, and the other end penetrates through the extension rod; an optical fiber channel is arranged in the controller; the working part is positioned at one end of the extension rod away from the holding part; the working part comprises an elastic filter screen, a pair of clamping pliers and an adjusting arm; the clamping forceps are hinged with the extension rod; one end of the adjusting arm is hinged with the clamping pliers, and the other end is hinged with the controller; the clamping forceps are circumferentially arranged by taking the axis of the extension rod as the center; and the elastic filter screen is wrapped on the outer wall of the clamping pliers. The beneficial effects are that the optical fiber is fixed in the optical fiber channel to prevent shaking of the optical fiber, accurate lithotripsy can be realized, and damage to surrounding tissues is avoided. In the operation process, the clamping forceps are driven by the controller to be opened and closed so as to clamp the calculus, so that laser can be aligned with the calculus, and accurate crushing of the calculus is achieved.

In one embodiment, a ureteroscope for ureteroscopic laser lithotripsy is disclosed. The ureteroscope comprises a handle, a disposable section made of a flexible cannula constructed of polyamide intertwined with 316L stainless steel wires with a specific diameter of 2.5 mm, a trapezoidal shaped camera, a distal tip and an LED module arrangement composed of four LEDs, each precisely situated at a 90-degree interval around the camera, and a temperature sensor situated at the distal tip, calibrated to detect a temperature range from 25° C. to 50° C., a pressure sensor located at the distal tip with a sensitivity range of 0 to 40 mmHg for regulating intrarenal pressure and a Video Processing Unit (VPU) with a processing speed of 2.5 GHz, configured to receive and process data from the sensors and the camera.

1. The name of the design product: medical laser lithotripsy equipment. 2. The use of the design product: the design product is used for medical laser lithotripsy equipment. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

Methods for surfactant enhanced laser-induced vapor bubbles for use in laser lithotripsy. Urinary tract stone disease is a common and costly disease that effects approximately 10% of the United States population. A preferred minimally invasive method for treatment of urinary tract stones is laser lithotripsy, which involves insertion of a flexible ureteroscope through the urinary tract to the stone's location, and then transmission of infrared (IR) laser energy through a flexible optical fiber, which is in turn placed through the single working channel of the ureteroscope. The IR laser energy is used for ablation of the urinary tract stone which is then removed. In order to have a more efficient ablation, the ureteroscope is fed with a surfactant composition which is flowed into the ureter and / or kidney of the subject. The laser causes larger bubbles to form in the surfactant composition, making a robust and longer lasting bubble.

The invention relates to a stone tracking system, computer equipment and a storage medium. The system comprises a video processing module used for acquiring a video stream and framing the video stream; wherein the video stream is a video stream comprising stones; the calculus detection module is used for identifying a to-be-tracked calculus from the image of the current frame and obtaining current detection result information of the to-be-tracked calculus by using the target detection model; the data backtracking module is used for acquiring historical detection result information of the tracked stone in the image of the previous frame of the current frame; and the calculus tracking module is used for calculating the similarity between the to-be-tracked calculus and the tracked calculus according to the current detection result information and the historical detection result information, and configuring the unique identification information corresponding to the tracked calculus to the to-be-tracked calculus in response to the fact that the similarity is greater than a preset threshold value. By adopting the method, the stone identification and tracking accuracy in the laser lithotripsy operation can be improved.

The ureteral catheter endoscope and lithotripsy system comprises an endoscope body and an operating handle, one end of the operating handle is used for being connected with a control host, the other end of the operating handle is connected with the endoscope body through a bendable catheter, the operating handle is connected with a control assembly, and the control assembly is used for controlling the catheter to bend so as to adjust the detection view field of the endoscope body; a detection lens is fixed on the lens body, an optical fiber outlet is formed in the side of the detection lens on the lens body, an optical fiber insertion assembly is fixed on the operating handle, and the optical fiber insertion assembly is communicated with the optical fiber outlet through a catheter. The endoscope display system and the laser lithotripsy system are integrated, and meanwhile, the endoscope body is connected with the operating handle through the bendable catheter, so that the detection lens on the endoscope body can realize multi-angle detection according to the bending angle of the catheter, and the detection range is expanded. When calculus is found, the lithotripsy optical fiber extends out of the optical fiber outlet through the optical fiber insertion assembly and the catheter, and lithotripsy is carried out aiming at the calculus disease position found by the detection lens.

Devices, systems, and methods for a retrieval device for treating kidney stones. A retrieval device includes a deployable basket having a deployed cover. The basket is deployed and manipulated around a kidney stone. The cover is then deployed around the basket to receive kidney stones for laser lithotripsy. Debris at or below a target size is allowed to escape through an aperture in the cover, or removed via a suction tube.

A measuring method for optically determining a distance (z) of a surface located in a medium from an end of an optical waveguide is described and has the following steps: emitting electromagnetic measuring radiation of a first wavelength (λ1) and of a second wavelength (λ2) from the end of the waveguide towards the surface, wherein the medium more strongly absorbs the electromagnetic measuring radiation of the second wavelength (λ2) than the electromagnetic measuring radiation of the first wavelength (λ1); measuring a first reflection signal (I1) of the electromagnetic measuring radiation of the first wavelength (λ1) reflected from the surface, and measuring a second reflection signal (I2) of the electromagnetic measuring radiation of the second wavelength (λ2) reflected from the surface, and determining the distance (z) from a ratio (I2:I1) of the second and the first reflection signal. Furthermore, a measuring device and a laser lithotripsy device are described.

An end-firing surgical laser fiber suitable for Thulium Laser Fiber lithotripsy applications includes a standoff that extends beyond the distal end surface of the fiber to prevent contact between the end face of the fiber and a targeted stone. The standoff may either (1) extend along only one side of or partially around a circumference of the fiber, so that dust from the pulverized stone can freely flow downstream from the treatment site without being trapped by or accumulating on the standoff, or (2) include at least one flushing port that prevents dust accumulation by permitting passage of dust from within the standoff. Flushing of dust from within the standoff may be facilitated by including a source of fluid to entrain the dust and carry it through the flushing port.