102 results about "Urology department" patented technology

An implantable urological device (200) is disclosed. The implantable urological device includes a housing forming a first internal compartment, an electronic component disposed within the first internal compartment, and a header (226) coupled to the housing. The header forms a second internal compartment. A secondary conductor (228) is disposed within the second internal compartment and electrically coupled to the electronic component. The secondary conductor receives a wireless power signal. An antenna (230) is disposed within the second internal compartment and electrically coupled to the electronic component. The antenna receives a wireless communication signal.

An implantable urological device is disclosed. The implantable urological device includes a housing forming a first internal compartment, an electronic component disposed within the first internal compartment, and a header coupled to the housing. The header forms a second internal compartment. A secondary conductor is disposed within the second internal compartment and electrically coupled to the electronic component. The secondary conductor receives a wireless power signal. An antenna is disposed within the second internal compartment and electrically coupled to the electronic component. The antenna receives a wireless communication signal.

The invention discloses a urology department traditional Chinese medicine inquiry result prediction method and system applying a large language model, and belongs to the technical field of large language models. The method comprises the following steps: preprocessing disease description data, and obtaining self-correlation parameters among the disease description data; constructing a prediction model according to the large language model; the core keyword data used for describing the focus is output, so that the specific cause of disease in the inquiry is predicted, and the accuracy is improved; the method comprises the following steps: recording feedback data related to core keyword data in real time; inputting the feedback data into the self-correction model, and outputting an adjustment value; and according to the adjustment value, parameters in the large language model are adjusted in real time, and through continuous use and adjustment based on feedback data, continuous refinement of the prediction model in the specific knowledge field of the urology department field is further realized, so that prediction of specific causes in inquiry is further realized, and the accuracy is improved.

The present disclosure provides a balloon-free, self-retainable and threadable urethral catheter that contains special external markings to guide insertion, and that could be indwelled easily and safely. Through various experiments and the structural configuration, the balloon-free, self-retainable and threadable urethral catheter of the present disclosure can make insertion of a mushroom-tip urethral catheter easily performed by primary care medical professionals, instead of previously only been done by senior urologists with a semi-rigid stainless-steel stylet. This disclosure leads to better urine drainage and reduces irritation to the posterior wall of the bladder. With the special design of this disclosure, minor urethral structure can be overcome to insert this catheter safely.

The urinary catheterization device for the pediatric urology department comprises pocket cloth, the two end sides of the pocket cloth are connected to form an underpants structure to be fixed below the waist, a containing cavity is formed in the position, corresponding to the private part, of the pocket cloth, and a protective cover is connected to the position, corresponding to the containing cavity, of the outer side of the pocket cloth; the input end of the catheter extends into the human body through the urethra; the input end of the connecting catheter is communicated with the output end of the catheter, the output end of the connecting catheter extends out through a via hole in the end face of the protective cover, and a limiting baffle is arranged on the connecting catheter and matched with the inner wall of the protective cover; and the valve body is positioned in the connecting catheter and is directly communicated with the output end of the catheter. The two end sides of the pocket cloth are connected to form the underpants structure, the legs do not need to make corresponding actions when the underpants are put on and taken off, discomfort caused by touching the urethral catheterization device is reduced, the corresponding length of the urethral catheter can be cut according to different patients, the urethral catheter located on the outer side of the urethra does not need to be kept too long, and influences on behavior actions are avoided.

The utility model discloses a sterile operation kit suitable for hysteroscope and transurethral operations, and relates to the field of gynecological and urology department operation tools, in particular to a sterile operation kit suitable for hysteroscope and transurethral operations, which comprises a treatment towel and a liquid collecting device, and the treatment towel and the liquid collecting device are provided with operation holes. The liquid collecting device is arranged on the treatment towel corresponding to the surgical hole, the liquid collecting device is of a foldable structure, and one side of the liquid collecting device can cover the surgical hole after being turned over; a collecting device for collecting liquid flowing out in the operation process is arranged at one end of the liquid collecting device. The device has the advantages that the operation preparation process is simplified, the operation time is shortened, and the operation turnover is accelerated. The collection and disinfection cost of conventional operation cloth is reduced, and meanwhile, hospital infection is effectively avoided; the operation kit can effectively prevent liquid from leaking out of an operation sheet to soak the skin of a patient, so that hypothermia of the patient in an operation is effectively prevented.

The novel urine suction device for the urology department comprises a top cover and an extension pipe, the upper surface of the top cover is fixedly connected with a motor, the output end of the motor is fixedly connected with an electric telescopic rod, the side face of the electric telescopic rod is fixedly connected with a plurality of supporting rods, one end of each supporting rod is fixedly connected with a brush, and the inner walls of a plurality of fixing blocks are slidably connected with fixing rods. Gears are rotatably connected to the inner walls of the multiple fixing blocks, rotating rods are fixedly connected to the side faces of the multiple gears, one ends of the multiple clamping blocks are fixedly connected with an annular protective shell, and a motor, an electric telescopic rod, a supporting rod and a brush are matched with one another, so that the interior of the collecting barrel is conveniently and automatically cleaned, infection caused by bacterial reproduction is prevented, and workers work more conveniently; the working environment is optimized, the cleaning efficiency is improved, a fixing rod, a gear and a rotating rod are matched with one another, the extension pipe and the annular air bag are conveniently separated and cleaned, when the annular air bag is damaged, independent replacement is facilitated, meanwhile, classified recycling is facilitated, and environmental protection is facilitated.

The utility model discloses nursing flushing equipment for the urology department, and relates to the technical field of flushing equipment. The bladder irrigator comprises a bladder irrigator body, the bottom of the bladder irrigator body is fixedly connected with a shell rotating bearing, the outer portion of the shell rotating bearing is fixedly connected with an irrigating body shell, a shell lock catch hook is installed in the irrigating body shell, and the outer portion of the shell lock catch hook is movably connected with a hook inserting groove. A bladder irrigation cannula is movably sleeved with the bladder irrigator body, and a liquid conveying groove is formed in the bladder irrigation cannula. According to the utility model, the flusher dismounting shell is arranged, so that an operator can conveniently replace a new bladder flushing pipe for repeated use after using the bladder flushing pipe, and a shell lock catch hook mounted on the flusher dismounting shell is inserted into a hook insertion groove; therefore, the flusher detachable shell is fixed outside the bladder flusher main body to fix the bladder flushing cannula.

The utility model discloses an anti-inflammation nursing device for the urology department, and relates to the technical field of the urology department, the anti-inflammation nursing device for the urology department comprises a fumigation chair, and T-shaped guide holes are formed in two armrests of the fumigation chair in the length direction of the armrests; a first T-shaped guide block slides in one of the T-shaped guide holes in a friction mode, and a transverse plate which is parallel to a cushion on the fumigation chair and located below the cushion is fixed to the first T-shaped guide block through a first vertical plate. A second T-shaped guide block is arranged in the other T-shaped guide hole in a friction sliding mode, a longitudinal plate perpendicular to the transverse plate is arranged on the fumigation chair in a sliding mode, a second vertical plate is fixed to the second T-shaped guide block, and the second vertical plate is rotationally matched with the side face of the end of the longitudinal plate through an inclined plate; sliding grooves are formed in the transverse plate and the longitudinal plate in the length direction of the transverse plate and the longitudinal plate. Fumigation is guided through the smoke outlet pipe, the fumigated smoke is accurately fumigated to the affected part of the patient, waste of the smoke is avoided, and the anti-inflammation nursing effect is better.

The invention belongs to the technical field of heating and heat preservation devices, and particularly relates to a portable urology department flushing pipe heating and heat preservation device which comprises a device body, a flushing fluid bottle connecting base is arranged at the top of the device body, a mounting sliding rail is arranged on the inner side of the device body, and the inner side of the mounting sliding rail is slidably connected with a sliding block. The side face of the sliding block is provided with a flushing fluid heating temporary storage device, the front face of the flushing fluid heating temporary storage device is provided with a pull ring and connected with an output pump, the flushing fluid heating temporary storage device is internally provided with an electric heating pipe, the front end of the output pump is in threaded connection with an output pipe, the front face of the output pipe is provided with a connector, and the output pipe is sleeved with a rubber ring. The rubber ring is connected with the flushing pipe heat preservation sleeve layer through the connecting belt, an electric heating wire is embedded in the flushing pipe heat preservation sleeve layer, and the flushing pipe heat preservation sleeve layer and the electric heating wire are arranged, so that heat preservation can be conducted on flushing fluid flowing into the flushing pipe, and the situation that the temperature of the flushing fluid is reduced in the long-distance conveying process, and consequently the comfort of a patient is affected is avoided.

The invention relates to the field of medical instruments, in particular to a sectional type urine collector for the pediatric urology department, which comprises a connecting seat, an adjusting plate and a funnel detachably arranged on the upper end face of the connecting seat, a limiting cavity is formed in one side of the connecting seat, a plurality of partition plates are arranged in the limiting cavity at intervals, and through spherical grooves are formed in the surfaces of the partition plates; the adjusting plate is attached to the partition plates to form a plurality of temporary storage cavities, pushing pieces with the same number as the partition plates are arranged on the inner wall of the adjusting plate at intervals, a floating ball is arranged between each pushing piece and the corresponding partition plate, a plurality of liquid outlets used for guiding urine out of the temporary storage cavities are formed in the surface of the adjusting plate, and the funnel is communicated with the temporary storage cavities. According to the invention, a plurality of layered storage structures for urine are formed by arranging the floating ball and the temporary storage cavity, the urine in a closed state of each layer is not in contact with the urine in other adjacent layers, the sampling mode can stably divide the urine into a plurality of layers, and a multi-section sampling function for the urine is provided.

The invention relates to the field of medical care, in particular to urology department nursing equipment which comprises a medicine barrel, a medicine sieve tray and two supporting steam uniformizing mechanisms, the inner side of the medicine barrel is a smooth conical surface and can support the medicine sieve tray, a steam pipe is arranged on the side wall of the medicine barrel, a backrest is arranged on the medicine barrel, and a cleaning spray pipe is arranged on the side, close to the backrest, of the medicine barrel; valves are arranged on the steam pipe and the cleaning spray pipe; a drain hole is formed in the bottom of the medicine barrel; each supporting steam uniformizing mechanism comprises a power part, a supporting plate and a plurality of steam uniformizing rods, the supporting plate is rotationally connected with the medicine barrel, the power part is used for driving the supporting plate to rotate, the supporting plate, the medicine barrel and the power part are detachably connected, the supporting plate and the steam uniformizing rods are bent, one end of each steam uniformizing rod is rotationally connected with the supporting plate, and the other end of each steam uniformizing rod is detachably connected with the power part. The other ends of the steam uniformizing rods can make contact with the medicine sieve tray, and the steam uniformizing rods on the two supporting plates are distributed in a staggered mode. By adopting the technical scheme, the comfort of a patient during nursing is improved, and the nursing equipment is convenient to clean.

This invention belongs to the field of postoperative drainage technology, and particularly relates to a urological drainage nursing device, which comprises a housing, a top plate horizontally and fixedly connected to a top portion of a side wall of the housing, and a fixing box fixedly disposed on a bottom wall of the top plate and on an inner wall of one side of the housing. The device adopts an intermittent time relay so as to realize periodic automatic unclogging of a drainage tube, thereby ensuring continuous unobstructed drainage, and rapidly removes blockage through an electrically controlled negative-pressure suction mechanism to restore drainage efficiency. Meanwhile, an efficient power-distribution design of a driving motor completes movement of a detection and dredging cylinder and an unclogging function, thereby reducing manufacturing cost and energy consumption. The automatic unclogging and drainage function reduces the workload of medical staff, while precise delayed-relay control ensures operational safety. In addition, a detachable drainage box simplifies maintenance procedures, and the overall design overcomes the technical prejudice in the prior art that an efficient automatic unclogging function and simple maintenance operations cannot coexist.

The utility model proposes a new type of heating blanket for urology transurethral resection of the prostate, including an inflatable first heating blanket and a second heating blanket, the first heating blanket and the second heating blanket are worn on the patient, and the first heating blanket and the second heating blanket are respectively connected to a heating blower through a threaded telescopic tube. The heating blanket of the utility model includes a first heating blanket and a second heating blanket. In addition to the surgical site of the patient, the first heating blanket and the second heating blanket can cover the body and the bottom of the body after being folded, and the heating is more uniform. The utility model is worn before entering the operating room, avoiding the temperature drop of the patient's clothes after entering the operating room, and also avoiding the patient from being cold when passing the bed after the operation.

The invention relates to the technical field of medical instruments, and discloses a urinary catheterization device for urology department nursing and a using method thereof.The urinary catheterization device comprises a main body and further comprises a deviation rectifying mechanism, the deviation rectifying mechanism is installed on the outer surface of the main body, and movement of the deviation rectifying mechanism can reduce the bending situation of the top of the main body when water is injected into the main body. The drainage holes are circumferentially distributed, when liquid is injected into the balloon barrel, the liquid entering the balloon barrel can be evenly distributed, meanwhile, the inner walls of the first blocking plate and the second blocking plate on the outer wall of the balloon barrel make contact with each other, deformation of the balloon barrel can be blocked to a certain degree, and therefore the overall deformation of the balloon barrel is in a synchronous state; the condition that the main body in the bladder is extruded by the deformation of the balloon barrel to be bent due to the deformation of one side, close to the water injection hole, of the balloon barrel is reduced, so that the stability of the urinary catheterization device for nursing in the bladder is improved.

The application discloses a urinary catheter anti-falling alarm device for urology department, and relates to the technical field of urology department clinical medical equipment.The device comprises an elastic restraint belt, a fixing assembly, a urinary catheter connection monitoring assembly and a monitoring alarm system.The elastic restraint belt is used for fixing the urinary catheter anti-falling alarm device on the surface of a patient.The fixing assembly is in sliding connection with the elastic restraint belt.The urinary catheter connection monitoring assembly is arranged on one side of the top of the fixing assembly.The monitoring alarm system is arranged in the fixing assembly.The device solves the core problems of poor fixing effect and high falling risk of traditional urinary catheters, improves the efficiency of medical staff through simplified operation and optimized data management, and takes into account the comfort and safety of patients, thereby reducing the incidence of complications such as urinary system infection and urethral injury, reducing the workload of medical staff, improving the experience of patients in diagnosis and treatment, and having obvious clinical value.The device can be widely applied to urology department, geriatric department, intensive care unit (ICU) and other scenes, and has high popularization potential and social and economic benefits.

The present application discloses a urine collection device for urology laparoscopic surgery, which relates to the technical field of medical equipment, including a collection bucket, a partition plate, a movable frame, a diverter ball, an output tube, a sample tube, a collection part and a liquid inlet tube; three collection parts are provided, which are evenly arranged along the circumference of the collection bucket and fixed inside the collection bucket, corresponding one to one with the liquid inlet tubes; the collection part is provided with multiple collection bags arranged vertically, and the multiple collection bags are connected in series, all located below the corresponding liquid inlet tubes, and the outsides of the bags are respectively covered with pressure bags, and the inner wall of each pressure bag is fixed with a magnet, and the pressure of the internal collection bag is adjusted by magnetic attraction to realize graded extraction and collection of urine; it can achieve the technical effects of improving collection efficiency, reducing the risk of cross infection, avoiding urine overflow, improving liquid inlet smoothness and meeting the needs of different surgeries.

The utility model relates to the technical field of urology department appliances, and provides a urinary stoma urine collector which comprises a urine collector body, a urine collecting mechanism is arranged on the urine collector body, an air guide pipe is installed on the surface of the urine collector body in a penetrating mode, and the bottom end of the air guide pipe extends into the urine collector body. A user repeatedly extrudes the pressing air bag, so that external air enters the pressing air bag through the air inlet pipe, the air is input into the air spraying pipe through the connecting pipe via the air guide pipe to be sprayed out, the interior of the urinal body is blown, and therefore the effect of rapidly drying the interior of the urinal body is achieved; in addition, urine remaining on the inner wall of the urine collector body can be removed, it is avoided that due to urine remaining, the interior of the urine collector body is moist, and bacteria and peculiar smells are bred, and the use comfort and safety of a user are effectively improved.

The utility model belongs to the technical field of medical instruments, and particularly relates to a urinary catheterization suite for the urology department. The end part of the catheterization input port is fixedly connected with a urine collecting pipe; the end part of the urine collecting pipe is fixedly connected with a first conveying pipe; a liquid guide pipe is arranged at the end part of the first conveying pipe; a temperature measuring assembly is arranged on the side wall of the liquid guide pipe; a urine sugar measuring assembly is arranged on the other side wall of the liquid guide pipe; a storage assembly is arranged on the other side wall of the liquid guide pipe; a second conveying pipe is mounted at the end part of the liquid guide pipe; through the arrangement of a rotating plate, contraction of a clamping rubber plate can be controlled through a sliding hole and a control rod, the size of an inner ring of a catheterization input opening is adjusted according to different patients, the urine leakage condition is reduced, through the arrangement of a temperature measuring assembly, a urine sugar measuring assembly and a storage assembly, the temperature and sugar of urine can be detected, and the detection accuracy is improved. And excessive urine is collected, so that the urine leakage condition of the urinary catheterization suite for the urology department is reduced.

The utility model discloses a catheter for treating urethral stricture relates to urology technical field, and the utility model discloses a branch pipe, one side of branch pipe is equipped with three cavity pipes, and the other end fixed of branch pipe is equipped with indirect cavity, and one side fixed connection of indirect cavity has the connecting hopper, one side fixed connection of connecting hopper has the transmission pipe and one end fixed connection of transmission pipe has the urine tube access end, the upper surface one side fixed of urine tube access end is equipped with the pilot soft block, the upper surface fixed connection of urine tube access end has the input pipe, and the input pipe is linked together with transmission pipe, the utility model provides a catheter for treating urethral stricture, and the design of urine tube opening is in the tip, solves the problem that the conventional catheter cooperates with the guide wire for the urethral stricture patient and is easy to angle, and the problem of difficult to place, makes the catheter can follow the guide wire and pass the narrow urethra, improves the success rate of placement, reduces the patient's pain and urethral injury.

This invention discloses a retractor for urological surgery. The invention relates to the field of medical technology and includes a bed frame. Support legs are fixedly connected to the four corners of the bottom of the bed frame. Two support rods are fixedly connected to the bottom side wall of the bed frame, and one end of each support rod is fixedly connected to the same fixing plate. A clearance groove is provided on the top side wall of the bed frame. This invention allows for adjustment of the position and angle of the fixing blocks according to the location and angle of the scrotal incision when retraction is needed. This facilitates the use of the fixing blocks to fix both sides of the scrotal incision, thereby retracting the incision. This avoids the need for the doctor to manually retract the incision. Simultaneously, by tilting the fixing blocks towards both sides of the scrotal incision, the frontal view of the scrotal incision is unobstructed, avoiding interference with the doctor's vision and operating space.

Disclosed are embodiments of a urological implant, comprising an implant having an elongated body with a longitudinal axis. Optionally, pairs of longitudinal ribs are symmetrically disposed opposite each other and connected to the elongated body. The longitudinal ribs are optionally resiliently movable relative to the longitudinal axis of the spine between a collapsed state and an expanded state to retract and / or support urethral surrounding tissue. Optionally, the system comprises an extraction handle of the implant. The extraction handle is optionally positioned proximally of the elongated body and connected to the longitudinal ribs and subjected to a pulling force to urge and / or force the longitudinal supports towards the longitudinal axis. In some embodiments, an implant body comprises longitudinally spaced arch members sequentially interconnected along a length of a first longitudinal rib and a second longitudinal rib by arch ends.

1. Name of the product in this design: Dressing tray for nursing (urology). 2. Purpose of this design: A tray for holding dressing instruments, dressings and medicines. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

A medical urology device for drug delivery to the lining and deeper tissues of the ureter and kidney. The present invention features an electromotive drug administration (EMDA) catheter device for deploying a fluid to deep tissues of a patient. The device includes a catheter body with fenestrations along its distal length. The device may further comprise a multiport component for allowing access to the catheter body. The device may further comprise a conductive wire removably disposed through the multiport component within the catheter body. Fluid may be directed through the multiport component and the plurality of fenestrations to the body structure of the patient. Electrical stimulation directed through the conductive wire enhances the penetration of medications with the same polarity to electrical stimulation into a body structure of the patient to allow the fluid to penetrate deep tissues.

The utility model discloses a urine collection bag for urology department, which comprises a urine collection bag body, an emptying pipe is arranged at the bottom of the urine collection bag body, a limiting pipe is arranged at the top of the urine collection bag body, the limiting pipe covers the outer side of a connecting pipe, and the bottom of the connecting pipe is communicated with the urine collection bag body; the limiting pipe comprises a supporting pipe, the bottom of the supporting pipe is fixed to the mounting piece, meanwhile, the mounting piece is fixedly connected to the surface of the urine collection bag body, and the supporting pipe is arranged at the joint of the urination hose and the connecting pipe; the top of the emptying pipe is communicated with the urine collecting bag body, a sealing plug is movably mounted on the upper side of the interior of the emptying pipe, and the bottom of the sealing plug is fixed to the connecting base. According to the urine collection bag for the urology department, the stress block is pushed upwards, the sealing plug is driven by the driving column to move upwards, an inlet is exposed, urine in the urine collection bag body can be discharged from the emptying pipe, the urine cannot contaminate the hand, and the situation that the urine is infected by viruses is avoided.

A system, apparatus and methods for providing a single use imaging device having improved viewing for sterile environments is disclosed and described. A single use high definition camera used for general purpose surgical procedures including, but not limited to, arthroscopic, laparoscopic, gynecologic, and urologic procedures, may comprise an imaging device that is a sterile and designed to ensure single use. The imaging device may further include a sensor located near the tip of a laparoscope and a view optimizing assembly.

This invention discloses a method and system for predicting the results of traditional Chinese medicine (TCM) consultations in urology using a large language model, belonging to the technical field of large language modeling. This invention preprocesses disease description data and obtains self-correlation parameters between the disease description data; then, based on the large language model, it constructs a prediction model; outputting core keyword data describing lesions enables the prediction of specific causes in consultations, improving accuracy; by recording feedback data related to the core keyword data in real time; inputting the feedback data into a self-correcting model and outputting adjustment values; and adjusting the parameters within the large language model in real time based on the adjustment values, through continuous use and adjustment based on feedback data, the prediction model for a specific knowledge domain in urology is further refined, thereby further improving the accuracy of predicting specific causes in consultations.

The utility model relates to the field of optical fiber guide wire fixing, and discloses a medical urology department optical fiber guide wire fixing device, which comprises a bottom plate, a plurality of groups of rotating columns are rotatably connected to the inner wall of the upper part of the bottom plate, a convex block is arranged on the left side of the bottom plate, a slot is formed in the right side of the bottom plate, and a mounting piece is inserted into the inner wall of the bottom end of the bottom plate. A fixing mechanism is arranged on the outer side of the rotating column, the fixing mechanism comprises a fixing assembly and a limiting assembly, the fixing assembly comprises a fixing piece, and the fixing piece is arranged on the outer side of the rotating column. According to the utility model, by rotating the two groups of rotating columns, the fixing piece and the limiting column quickly clamp a plurality of groups of guide wires, meanwhile, the limiting assembly quickly limits the two groups of rotating columns, and the limiting column is used for separating and fixing, so that a doctor can distinguish the guide wires conveniently, the working efficiency is improved, and meanwhile, through the limiting column and the fixing piece which are made of rubber materials, the working efficiency is improved. And the damage caused by fixing the guide wire can be reduced.

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 invention relates to the technical field of medical instruments, and particularly discloses a prostate expansion device for the urology department. The invention aims to overcome the inherent defects of the existing prostate expansion device in the aspects of expansion force control, tissue damage risk and reversibility. The tubular net rack is integrally formed by medical nitinol alloy and is divided into a near-end conical area, a middle cylindrical area and a far-end conical area in the axial direction; the stent recovers a preset shape at the body temperature of 37 DEG C, the maximum radial supporting force is controlled at the plateau stage of 0.8 N / mm to 1.2 N / mm, and the stent has the self-pressure-limiting characteristic; annular recovery hooks are arranged at two ends of the bracket; and the surface is subjected to electrochemical polishing treatment and a titanium nitride coating is deposited. By the adoption of the scheme, the expansionary force can be safe and controllable, and tissue damage is avoided; the anatomical compliance and comfort are improved; the recoverability is realized; calculus formation is effectively prevented, and the service life is prolonged.