17 results about "Flexible ureteroscope" patented technology

The invention relates to the technical field of medical instruments, and discloses a flexible ureteroscope sheath device and a pressure control method thereof.The flexible ureteroscope sheath device is characterized in that one end of a connector tube seat is connected with a sheath tube, the other end of the connector tube seat is provided with three connectors, the first connector is connected with a pressure relief device and a control device, the second connector is used for a flexible ureteroscope and perfusion, and the third connector is used for negative pressure suction; a central channel is arranged in the sheathing canal, and passage type pressure measuring sensors are axially and uniformly arranged around the channel; the control device comprises an adjusting key, a digital display, an indicating lamp and a buzzer, and is electrically connected with the pressure measuring sensor and the pressure relief device; the control device comprises an automatic pressure relief module which is used for collecting analog voltage signals and converting the analog voltage signals into pressure data values, and when a detection value reaches a set threshold value, the electric control pressure relief device automatically relieves pressure. According to the invention, real-time and continuous detection and control of the pressure in the cavity are realized.

The utility model discloses a novel urinary catheter, which belongs to the technical field of urinary catheters and comprises a urinary catheter used for draining urine of a patient and facilitating calculus crushing of the patient and a flexible ureteroscope holmium laser device used for crushing and removing the calculus of the patient. The front end of the catheter is provided with a urine hole position used for discharging urine of a patient, the front end of the catheter is further symmetrically provided with two drainage holes, the device further comprises a guide wire, and the guide wire can be placed into the position where stones need to be broken through the catheter. The guide wire stretches out of the corresponding drainage hole through the water injection opening and is finally placed in the lithotripsy position, then the guide wire enters the position needing lithotripsy from the guide wire path through the flexible ureteroscope holmium laser equipment to be crushed and taken out, and the effect that the catheter can assist the flexible ureteroscope holmium laser equipment in guiding is achieved. And the situation that the flexible ureteroscope holmium laser equipment is in large contact with the patient to cause injury is avoided.

The invention provides an integrated tail-end-expandable bent ureteroscope, and relates to the technical field of urology department treatment equipment.The integrated tail-end-expandable bent ureteroscope comprises a catheter assembly, a ureteroscope assembly is arranged at one end of the catheter assembly, a connecting assembly and a handle assembly are arranged between the catheter assembly and the ureteroscope assembly, and a holding spherical shell and an adjusting assembly are arranged at the end of the ureteroscope assembly; the catheter assembly and the endoscopic camera are arranged in the middle cavity of the catheter assembly and the middle cavity of the endoscope assembly, the balloon sleeve is arranged at the end of the catheter assembly, and the operation time is shorter than that of an original technology, so that a doctor can complete more operations within the same time, the working efficiency of the doctor can be improved, the waiting time of a patient can be shortened, and the patient experience is improved. In addition, due to the fact that the operation time is shortened, the time of the patients in the anesthesia state is shortened, risks related to anesthesia are reduced, the operation time can be effectively shortened, the ureterostenosis problem can be treated at the same time, the operation difficulty of the ureterostenosis operation is reduced, and the hospitalization frequency and pain of the patients are reduced.

The flexible ureteroscope sheath system comprises an outer sheath tube, an intelligent control host and a negative pressure drainage pipeline. A groove is formed in the inner wall of the far end of the outer sheath tube, a pressure detection unit is embedded in the groove, the surface of the pressure detection unit is covered with a pressure-permeable protective film, and the signal line is connected with the intelligent control host through a signal transmission channel in the wall of the outer sheath tube. And the negative pressure drainage pipeline is communicated with the negative pressure interface at the near end of the outer sheath tube. And the intelligent control host receives the real-time pressure value, compares the real-time pressure value with a preset upper limit threshold value and a preset lower limit threshold value, controls the output of the adjustable negative pressure source or controls the pressure relief unit to act, and outputs an alarm signal in a continuous abnormal state. The intraoperative pelvis pressure monitoring system can realize real-time monitoring and dynamic adjustment of intraoperative pelvis pressure, and also considers drainage, pressure management and abnormity prompt.

The invention discloses a flexible ureteroscope sheath suite which is used for a flexible ureteroscope, and the flexible ureteroscope sheath suite is used for inserting a hard ureteroscope tube into an equipment channel, and fixing a sheath core connecting piece and an outer sheath connecting piece; the flexible endoscope body is inserted into the endoscope body channel, and the sheath core fixing piece is fixed to the front end of a handle of the flexible ureteroscope; placing the flexible ureteroscope sheath kit and a hard ureteroscope assembled by the flexible ureteroscope into the ureter; and the sheath core connecting piece and the outer sheath connecting piece are disconnected, and the sheath core and the flexible ureteroscope are withdrawn. The one-step sheath placement can be realized, the operation efficiency is greatly improved, the function of actively expanding the ureter is achieved, the sheath placement resistance is reduced, the sheath placement success rate is further improved, the soft and hard combined sheath is utilized, the tube cavity cannot deform after being extruded, the soft lens can coaxially rotate in the sheath tube cavity, and the target position can be more easily and accurately found.

The invention discloses a flexible ureteroscope for urinary surgery, and aims to provide the flexible ureteroscope for urinary surgery, which does not need manual operation and can automatically bend the front end of the flexible ureteroscope to observe a diseased part. The device comprises a control handle, a hose and snake bones, a control cavity is formed in the control handle, one end of the hose is connected with the control handle, the other end of the hose is connected with the snake bones, the multiple snake bones are sequentially connected, rotating mechanisms are arranged on the snake bones, control ropes are arranged on the rotating mechanisms, and the rotating mechanisms correspond to the snake bones one to one. One end of the control rope is connected with the rotating mechanism, the other end of the control rope is arranged in the control cavity, a control mechanism is arranged in the control cavity, and the control mechanism is connected with the control rope. The flexible endoscope has the advantages that manual operation is not needed, the front end of the flexible endoscope can be automatically bent to observe the diseased part, the flexibility of the hose is improved, the treated part can be cleaned, the bending angle can be conveniently observed, and the temperature of an instrument can be observed.

The invention relates to the technical field of medical instruments, and discloses a flexible ureteroscope sheath with a pressure relief function, which comprises a joint tube seat, a sheath tube, a pressure relief module, a flexible ureteroscope perfusion joint and a negative pressure joint, the joint tube seat is sleeved with the sheath tube, the interior of the joint tube seat is communicated with the sheath tube, the flexible ureteroscope perfusion joint is sleeved with the joint tube seat, and the negative pressure joint is communicated with the flexible ureteroscope perfusion joint. The interior of the connector tube seat is communicated with the flexible lens perfusion connector, the flexible lens perfusion connector is used for connecting a flexible lens and a perfusion system, the connector tube seat is sleeved with the negative pressure connector, the interior of the connector tube seat is communicated with the negative pressure connector, the negative pressure connector is used for being connected with a negative pressure suction system, the connector tube seat is sleeved with the pressure relief module, and the interior of the connector tube seat is communicated with the pressure relief module. The pressure relief module comprises a control module and a pressure relief module, the control module is electrically connected with the perfusion system and the negative pressure suction system, the pressure relief module comprises a pressure relief body and a valve body, and the valve body is rotationally connected with the pressure relief body. The pressure stability of the flexible ureteroscope sheath is ensured.

Provided is an occluder for a flexible ureteroscope, which relates to the technical field of medical devices. The occluder comprises a guide wire (1), a catheter, and a water delivery tube (4). The catheter is sleeved on the guide wire (1), and the catheter comprises a sleeving segment and an expansion segment. The sleeving segment comprises a guiding segment (21) and a connecting segment (22). The expansion segment is located between the guiding segment (21) and the connecting segment (22), and the expansion segment is an expansion water balloon (2). The water delivery tube (4) is configured to deliver a liquid medium, and one end of the water delivery tube is sleeved on and connected to an outer side of the connecting segment (22), such that the connecting segment (22) is located between the guide wire (1) and the water delivery tube (4). The liquid medium enters or flows out of the expansion water balloon (2) through a gap between the water delivery tube (4) and the connecting segment (22), causing the expansion water balloon (2) to expand or contract. The occluder allows the diameter of the guide wire (1) to be set thinner, such that the overall tube diameter of the occluder can be smaller, enabling the occluder for the flexible ureteroscope to be applicable in flexible ureteroscopy procedures.

A fURS haptic feedback mechanism includes a sensing unit configured to be retrofitted to an existing controlled section of a robotic-assisted retrograde intra renal surgical (RA-RIRS) system that manipulates an existing fURS shaft. The sensing unit includes a fURS tension detection mechanism configured to detect tension at the existing fURS shaft during a RA-RIRS surgical procedure, and a fURS tension interpretation mechanism configured to receive, evaluate, and quantify the detected tension. The fURS tension interpretation mechanism is further configured to visually display a quantified intensity level of the detected tension at the existing fURS shaft, and emit mechanical feedback, at an existing control handle of the existing RA-RIRS system, the quantified intensity level of the detected tension at the existing fURS shaft.

The invention discloses a flexible ureteroscope accessibility evaluation method and system based on a CTU image. The method comprises the following steps: respectively automatically detecting and positioning a coronal plane image and a synchronous sagittal plane image of a kidney on any cross section of a CTU three-dimensional image; automatically positioning the long axis direction of the kidney on the sagittal plane image through the upper polar vertex and the lower polar vertex of the kidney; automatically searching an optimal vertical projection plane of the kidney and the collection system on the coronal plane image; automatically positioning key anatomical points: a subrenal calyx calculus center point, a renal pelvis lower bound vertex and a subrenal calyx neck outer side vertex; creating a CCR1 calculation model, and calculating the radius of curvature CCR1 of the subrenal calyx; creating a CCR2 calculation model, and calculating the radius of curvature CCR2 of the subrenal calyx; the larger value in the CCR1 and the CCR2 is used as the maximum radius of curvature CCRmax of the subrenal calyx; if the minimum bending radius of the flexible ureteroscope is smaller than or equal to CCRmax, it is predicted that the flexible ureteroscope can enter the subrenal calyx, and otherwise it is predicted that the flexible ureteroscope cannot enter the subrenal calyx.

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 utility model relates to the technical field of medical instruments, in particular to a ureter negative pressure calculus removal guide sheath which comprises a sheath body, an operation channel is arranged in the sheath body, a gap is reserved between the inner side wall of the sheath body and the operation channel, supporting strips are integrally formed on the inner side wall of the sheath body, and a drainage channel is formed between every two adjacent supporting strips. A tip part is fixed at the front end of the sheath tube body, a drainage hole is formed in the side wall of the tip part and communicated with the drainage channel, and the inner diameter of the drainage hole is smaller than the minimum size of the section of the drainage channel. The inner diameter of the drainage hole is smaller than the minimum size of the section of the drainage channel, so that the drainage hole can block large stones, the situation that the drainage channel is blocked by large broken stones can be reduced, meanwhile, the supporting strip can support the flexible ureteroscope sheath, broken stone powder can be smoothly discharged, and the service life of the flexible ureteroscope sheath is prolonged. And the discharging efficiency of the broken stone powder is improved.

This application provides a ureteroscopic robot, relating to the field of medical device technology, comprising: a base; a lifting mechanism fixedly connected to the base for driving the lifting and lowering movement of the ureteroscopic endoscope; a horizontal feeding mechanism connected to the lifting end of the lifting mechanism for driving the horizontal forward and backward movement of the ureteroscopic endoscope; a rotating mechanism connected to the horizontal feeding mechanism, wherein the ureteroscopic endoscope is mounted on the rotating mechanism, and the rotating mechanism drives the ureteroscopic endoscope to rotate; a bending mechanism connected to the rotating mechanism for driving the ureteroscopic endoscope to bend; and a fiber optic delivery mechanism connected to the robot body and positioned close to the ureteroscopic endoscope for delivering optical fibers into the fiber optic channel of the ureteroscopic endoscope. This application achieves precise lifting, forward and backward movement, rotation, and bending of the ureteroscopic endoscope, as well as stable delivery of optical fibers, improving control precision, reducing the difficulty of surgical operations, and enhancing the stability of the overall machine operation, thereby effectively ensuring clinical operational efficiency and reliability.

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.

The utility model discloses a flexible ureteroscope, which belongs to the technical field of medical instruments and comprises a control handle main body, a flexible ureteroscope tube is arranged in the control handle main body, one end of the flexible ureteroscope tube extends out of the control handle main body, a control handle is arranged on one side of the control handle main body, and a connector is arranged on one side of the control handle main body. According to the flexible endoscope, the limiting mechanism is arranged, the sliding block can limit the rotating range of the control handle by blocking one side of the limiting groove, and then the range of the bending angle of the flexible endoscope can be limited when the end of the flexible endoscope enters a narrow area of the body of a patient; the soft lens tube is simple in structure and convenient to operate, discomfort of a patient caused by misoperation of medical staff is avoided, operation difficulty of the soft lens tube in a narrow area is lowered, the end of the soft lens tube can be prevented from deviating from the area where stone fragments are located when the stone fragments are sucked, operation complexity is lowered, and working efficiency of stone fragment suction is improved.

The invention relates to the technical field of medical instruments, in particular to a miniature force sensor for a flexible ureteroscope and a decoupling method.The miniature force sensor comprises a base, a top cover and a hollow tubular elastic body, the two ends of the elastic body are connected with the base and the top cover respectively, and a first optical fiber and a second optical fiber are arranged in the elastic body; a first fiber bragg grating is engraved on the first fiber, and two ends of the first fiber are respectively connected with the base and the top cover; the two ends of the second optical fiber are a first end arranged in a suspended mode and a second end connected with the base respectively, a second fiber bragg grating is carved on the first end, and a plurality of hollow structures arranged in a staggered mode are arranged on the surface of the elastic body in the circumferential direction of the elastic body. Through the above arrangement, the influence of the transverse force on the miniature force sensor can be effectively reduced, the interference caused by temperature change can be overcome, and the measurement precision of the miniature force sensor is improved.