9results about How to "Improve stone crushing efficiency" patented technology

The pre-pulse thulium laser lithotripsy system comprises an interaction unit, a control unit, a thulium-doped fiber laser, a thulium-doped fiber amplifier, a laser fiber coupler and a lithotripsy fiber, wherein the interaction unit forwards a user instruction to the control unit; the control unit controls the thulium-doped fiber laser and the thulium-doped fiber amplifier according to a user instruction; the thulium-doped fiber laser outputs laser pulses to the thulium-doped fiber amplifier according to the control instruction; the thulium-doped optical fiber amplifier sets a laser amplification factor according to the control instruction and amplifies the laser pulse; the optical fiber coupler is used for coupling the amplified laser pulse; and the lithotripsy optical fiber acts the coupled laser pulse on the calculus or sticky tissue of the calculus patient. Through the combination of the thulium-doped fiber laser with the MOPA structure and the thulium-doped fiber amplifier, high-peak power nanosecond pulse can be realized, micro-explosion bubbles are instantly generated, the energy loss before laser acts on stones is reduced, the unit energy lithotripsy efficiency is improved, and the lithotripsy effect is improved.

The utility model discloses a kind of laser device and laser therapeutic instrument, including first laser, second laser, beam synthesis subassembly and optical fiber;The first laser is used for emitting holmium laser towards the beam synthesis subassembly;The second laser is used for emitting thulium laser towards the beam synthesis subassembly;The beam synthesis subassembly is used to beam combining the holmium laser emitted by the first laser and the thulium laser emitted by the second laser into mixed light beam, and the mixed light beam is output to the optical fiber.Wherein, laser device can generate the mixed light beam of holmium laser and thulium laser when working to beam combining, and mixed light beam is guided to target position (such as the region needing treatment) by optical fiber, so that corresponding treatment can be carried out using mixed light beam, so that the treatment effect of holmium laser and thulium laser can be considered.

This invention provides a method for processing an ultrafine lithotripsy probe, comprising the following steps: S1. Inserting one end of the probe body into the mounting hole of the probe base to complete the initial assembly; S2. Placing the initially assembled ultrafine lithotripsy probe into a pressing device and fastening the probe body to the column of the pressing device, so that the probe base is located inside the heating coil of the heating machine; S3. Starting the heating machine to heat the probe base, and when the probe base reaches a predetermined state, using the pressing device to press the probe body into the mounting hole to a predetermined depth; S4. After pressing, removing the ultrafine lithotripsy probe and performing a cooling treatment. The ultrafine lithotripsy probe produced by this processing method has the advantages of tight assembly between the probe body and the probe base, low ultrasonic transmission loss, and the connection between the probe body and the probe base is not easily broken under high-frequency ultrasonic vibration, resulting in high lithotripsy efficiency.

According to the digestive endoscopy auxiliary device, the auxiliary method and the laser lithotripsy mechanism, the distance between an optical fiber and a calculus is measured through an ultrasonic sensor, a coil arranged in a fixing block is used for generating magnetism through electricity, a magnetic block moves under the influence of a magnetic field, then a focus lens is driven to move, focusing from laser to the calculus is completed, the laser energy density is improved, and the laser lithotripsy efficiency is improved. The laser energy can accurately and efficiently act on the calculus, so that the lithotripsy efficiency is improved, after laser lithotripsy is finished, the residual small calculus is removed through the residue removing mechanism, multiple times of operation is avoided, the operation time is shortened, a patient can recover the body health more quickly, and the hospitalization time and the complication risk in the recovery period are reduced.

The invention discloses an acoustic online monitoring device and method for laser lithotripsy, and the device comprises a laser device which is used for generating high-energy pulse laser; the laser controller is used for controlling parameters of the laser; the optical fiber controller is used for controlling the position adjustment of the laser output by the optical fiber when the laser does not hit the stone and the video signal shows that the stone exists; the monitor is used for displaying video signals in the laser lithotripsy process; and the sound wave signal processor is used for obtaining sound wave signals collected in the laser lithotripsy process and judging whether the laser hits the stone or not according to the sound wave signals. Real-time acoustic feedback is provided for the laser lithotripsy process, and the accuracy and safety of the laser lithotripsy operation are ensured.

This invention discloses a lithotripsy system combining optical and inertial motion capture, belonging to the field of stone fragmentation technology. It incorporates an ultrasonic device and several optical motion capture devices within the diagnostic chamber. A computer establishes a spatial coordinate system based on information obtained from the optical motion capture devices. The ultrasonic device is equipped with both an inertial and optical motion capture system. The ultrasonic imaging device can detect the distance from the ultrasonic probe to the stone. Both the inertial and optical motion capture systems capture the position of the ultrasonic probe in space and feed the captured data back to the computer in real time. The computer then inputs the known distance from the ultrasonic probe to the stone and calculates the spatial position information of the stone, i.e., the stone's spatial coordinates.

The present invention provides a cup-shaped lithotripsy basket catheter. The present invention comprises an outer sleeve, a basket catheter and a snare connecting rod, wherein the basket catheter is arranged inside the outer sleeve, the snare connecting rod is arranged in the basket catheter, the outer sleeve comprises a first pipe section, a second pipe section and a third pipe section which are connected in sequence, the first pipe section is provided with a first lithotripsy electrode, a second lithotripsy electrode and a snare connecting rod channel, and the second pipe section and the third pipe section are provided with a basket catheter. The present invention is inserted into the common bile duct through an ERCP clamp channel, the opening or closing of the cup-shaped basket is controlled by the snare, the basket is released to trap stones, smaller stones can be removed from the common bile duct in diameter, when the stones are larger, the basket is tightened to fix the stones on the lithotripsy electrode of the catheter, the lithotripsy electrode joint is connected to a plasma, microelectrode or holmium laser wire, the stones in the common bile duct are crushed, and then the basket is used to trap the broken stones and drag them into the duodenum.

The flexible ureteroscope comprises a handle, a knob a and a knob b are arranged on the surface of the handle, a sheathing canal is arranged at the end of the handle, a steering mechanism is arranged at the end of the sheathing canal, a guide wire is arranged on the surface of the steering mechanism, and the other end of the guide wire is correspondingly wound on the knob a and the knob b. The flexible ureteroscope lithotripsy device has the advantages that the rotary knob a and the rotary knob b are used for controlling the stretching condition of the guide wire to control the steering mechanism, so that the steering mechanism turns in multiple directions, the lithotripsy device at the end of the flexible ureteroscope is conveyed to a designated position for lithotripsy, lithotripsy efficiency is improved, and the risk of septicopyemia of a patient is reduced.

A negative pressure stone basket and an integrated endoscopic catheter are disclosed. The negative pressure stone basket has an outer opening and a connecting part fitted onto the area near the top of the endoscopic catheter head. Multiple water inlet channels are provided near the inner opening of the negative pressure stone basket, and the water inlet channels are distributed circumferentially around the inner opening of the negative pressure stone basket. Water can enter the water inlet channel through the outer opening of the water inlet channel due to the negative pressure of the inner cavity of the negative pressure stone basket, and then enter the inner cavity of the negative pressure stone basket through the inner opening of the water inlet channel. During laser lithotripsy, water enters through the gap between the sheath tube and the endoscopic catheter. The working channel of the endoscopic catheter is connected to negative pressure. The inner opening of the negative pressure stone basket is close to or close to the target stone. The optical fiber extends from the inner opening of the working channel of the endoscopic catheter and releases energy to break the stone by touching or being near the target stone. Water continuously enters the inner cavity of the negative pressure stone basket due to the negative pressure, and the stone powder and the heat energy generated by the laser are discharged to the outside of the body with the water flow through the working channel of the endoscopic catheter.