43 results about "Urethral dilators" patented technology

The invention relates to a male urethra dilater with an endoscope, which comprises a base, a straight mirror canal, a bent mirror canal, a dilatation head, an optical fiber socket, a water injection port and an image interface, the dilatation head is a solid and transparent cone the end of which is spherical; a lens, an image transmission bar, a light transmitting bundle and a aqueduct are arranged in the straight mirror canal and the bent mirror canal, and a light cone is arranged in the optical fiber socket. The male urethra dilater solves the technical problems that the existing male urethra dilater is restricted in use when male urethra is narrow and visibility of the entire urethra can not be reached, and has the advantages of simple operation, real-time observation, clear image and convenient use.

The invention provides a water-lubricating composite balloon ureteral dilator. The water-lubricating composite balloon ureteral dilator comprises a dilator body which is provided with at least three passageways, a guide wire passageway is positioned on the central axis of the dilator body and penetrates through the dilator body. The other passageways are balloon passageways, each balloon passageway is communicated with a corresponding dilation balloon, and the dilation balloons are shrinkable circumferentially and arranged in the axial direction of the dilator body at equal intervals. The water-lubricating composite balloon ureteral dilator has the advantages that by the aid of the guide wire passageway which allows a guide wire to pass through, insertion of the dilator is more convenient; by the aids of the dilation balloons and the corresponding balloon passageways, different parts of a ureter can be dilated and dilation degrees can be controlled according to needs; by adopting the ureteral dilator coated with a hydrophilic film, the cost for aseptic paraffin oil is reduced, operation is simplified, and postoperative secondary infections and pains of patients can be reduced by antibiotic constituents in the film. The water-lubricating composite balloon ureteral dilator can be specifically applied to common narrow parts like a ureteral orifice, the junction of a ureter and an iliac vessel and the like, and dilation diameters can be controlled by means of controlling the sizes of the dilation balloons.

The invention provides a combined water-lubricated urethral dilator. The combined water-lubricated urethral dilator comprises a hollow supersmooth catheter, a urethral probe sleeving the supersmooth catheter and a guide wire running through the supersmooth catheter, wherein the urethral probe is made of a PVC material; the surfaces of the urethral probe and the supersmooth catheter are covered by hydrophilic rubber films; the guide wire is a hook-shaped guide wire with a deformable front end. The supersmooth catheter is used for replacing the guide wire to guide the urethral probe, so that the combined water-lubricated urethral dilator is unlikely to zigzag in a urethra or drop out from a bladder or the like; the supersmooth catheter can drain urine inside the bladder, so that the situations of hypothesis and excessive bladder distention are avoided; the hydrophilic rubber films modify non-hydrophilic materials and lubricate the surface of equipment, so that injuries and secondary infection caused by insertion of the combined water-lubricated urethral dilator into the urethra and the bladder are reduced; when the combined water-lubricated urethral dilator is used, urethral mucosal injuries and urethral dilatation discomforts can be reduced better, the guide wire is avoided from slipping off in the dilating process, continuous drainage of the urine in the bladder is ensured, and the situations of urethral mucosal hypothesis, urethral perforation and excessive bladder distention are avoided.

The invention discloses a urethral expander, which comprises a front urethral expander and a back urethral expander, wherein the front urethral expander consists of a hollow probe body and a handle arranged on the probe body; the back urethral expander comprises a sheath body; the back end of the sheath body is provided with an inner hole; the front end of the sheath body is provided with a guidehole; and a cup rim is arranged in the guide hole, and is communicated with the inner hole. When the urethral expander is in use, during expansion, the front urethral expander and the back urethral expander break through a narrow part of a urethra and are converged on the urethra, and the pointed end of the front urethral expander is clamped into the cup rim of the back urethral expander, so thaturethra expansion operation is completed. The invention has the advantages: the front urethral expander is put into a front urethra and the front end of the front urethral expander is clamped into the cup rim at the front end of the back urethral expander to form a semicircular structure, and the front and back urethral expanders are combined and connected into a whole, so that normal position ofthe urethral expander can be judged easily, and damage to the urethra and the formation of a false passage are avoided.

The invention discloses a urethral calibrator expander formed by a spherical probe (1), a connection rod (2) and an expansion tube (4) orderly connected from left to right. The right end of the connection rod (2) is covered with a tapered expanding device (3); the top of the tapered expanding device (3) faces the ball probe (1) and the bottom faces the expanding tube (4); the interior of the tapered expanding device (3) is in a hollow-bowl structure; the length of the tapered expanding device (3) is shorter than the connection rod (2); and the diameter of the bottom surface of the tapered expanding device (3) is greater than the diameter of a cross section of the connection rod (2). The narrow part of the urethral stricture can be effectively probed; the diameter and the length of the narrow part can be measured; relative reference information is provided for urethrostenosis surgery treatment and surgical method; meanwhile, pains of a patient and damage to the urethral stricture due to the exchange of various types of urethral calibrator expander can be reduced as possible as can; a material drawing performance for urethral stricture inflammatory excreta and stones can be met; and inspection and clinical treatment guide can be facilitated.

The urethral dilator comprises a dilator body, wherein the dilator body is a double-layer hollow structure body composed of a hard structure inner layer and an expandable and contractable flexible structure outer layer, wherein the inner layer is a pipe body structure with two ends communicated with each other, the outer layer front end is connected with the inner layer front end to form a blunt cone head for sealing, the outer layer rear end is provided with an injection port, and a semi-closed cavity is formed between the inner and outer layers. The inner layer of the rigid tube structure can not only ensure the shape of the expander, but also realize the insertion of the guide wire; the flexible outer layer is a semi-closed cavity, which can be filled with liquid or gas through the injection port at the rear end, so that the main structure of the expander can be expanded to achieve the purpose of expanding the narrow, and the expander can be expanded with different diameters withoutchanging the expander. The whole structure is simple, which solves the problem that the existing dilator cannot handle multi-segment urethral stricture.

The invention discloses a urethral catheterication device used in a urological department, in particular to a urethra dilator. The urethra dilatation catheter comprises an epitheca and a hole closing device arranged in the epitheca, and is characterized in that the cross section of the epitheca is C-shaped hollow sleeve. The invention has the beneficial effect that the urethra dilatation catheter can be pushed into a bladder while dilating; a balloon catheter is placed into the bladder from the epitheca after the hole closing device is pulled out; water is injected into the balloon to be dilatated to fix the catheter; and the far end of the catheter is pulled out from the epitheca to finish urethral catheterication.

The invention discloses a portable visualized device for urethral dilatation and assistance of urethral catheterization. The device comprises a urethral dilator, wherein the urethral dilator comprisesa straight part and a curved part, the urethral dilator is of a hollow structure, and an optical fiber rod is inserted into the urethral dilator in a connected mode; optical fiber is arranged in theoptical fiber rod, the optical fiber rod is composed of a straight rod body and a curved rod body, and a lens hole is formed in the head end of the curved part of the urethral dilator; a lens is arranged at the head part of the curved rod body, the position and size of the lens is matched with the position and size of the lens hole, and the curved rod body is made from a plastic material; the outer side surface of the optical fiber rod fits the inner side surface of the urethral dilator closely, one end of the optical fiber rod extends out of the urethral dilator, and is fixedly connected witha connection tube, and an optical fiber interface is arranged at one end of the outer side surface of the connection tube; and the optical fiber interface is electrically connected with an external monitor. Through the portable visualized device for urethral dilatation and assistance of urethral catheterization, the interior of urethra can be observed, and it is convenient for doctors to operateaccording to internal conditions, so that the safety of operation is improved greatly.

The invention provides a urethral dilator used together with a urethral probe. The dilator completely closely covers the urethral probe; the back end of the dilator is provided with a urethral probe insertion port, the back part of the dilator is provided with an air inlet, the middle section of the dilator is provided with an aerating channel connected with the air inlet, and the front end of the dilator is provided with an air cell connected with the aerating channel. The urethral dilator can be used together with the urethral probe with a corresponding size, high-pressure gas or high-pressure liquid can be charged in the inflatable air cell on the premise of detecting the narrow position of the urinary tract by the hard urethral probe to apply the horizontally acting force generated by the expansion of the air cell to the narrow position of the urinary tract, so that the urethral false passage caused when surrounding tissues are much easily damaged as the urethral probe is commonly forced to dilate the narrow position of the urinary tract is effectively avoided, and the effect of dilating the narrow position of the urinary tract is improved. The urethral dilator can be used together with the conventional urethral probe and conveniently produced and used, so that by using the urethral dilator, the occurrence of the iatrogenic urethral false passage is greatly lowered, and the pains in patients are relieved.

A urethral dilator with a sensing deVice comprises a urethral dilatation deVice used for urethral dilatation, a dilator supporting rod, a core pressure sensor, a peripheral pressure sensor and a signal output end, wherein the dilator supporting rod makes the urethral dilatation deVice enter the urethra conVeniently; the core pressure sensor is used for detecting the urethral pressure borne by thetip end of the dilator supporting rod; the peripheral pressure sensor is used for detecting the urethral pressure borne by the urethral dilatation deVice; the signal output end is used for feeding back core pressure and peripheral pressure; the core pressure sensor and the peripheral pressure sensor are connected with the signal output end through a controller. The operation risk is reduced, the pain of a patient is relieVed during an operation, a learning curVe of a doctor can be shortened, and the urethral dilator is beneficial to popularization of the operation.

The invention discloses an olecranon type urethral dilator with an openable sheath. The olecranon type urethral dilator comprises a dilator body, a high-pressure ball capsule and the openable sheath. The upper end of the dilator body is provided with a finger pulp groove. The lower end of the dilator body is provided with an olecranon type bend. A guide-in hole penetrating through the two ends of the dilator body is formed in the dilator body. The high-pressure ball capsule is arranged on the dilator body and located on the upper portion of the olecranon type bend. The included angle between the tangential direction of the olecranon type bend and the length direction of the dilator body is 30-45 degrees. The openable sheath is arranged outside the dilator body. The olecranon type urethral dilator is provided with the openable sheath, the dilator body can be guided by a guide wire in the guide-in hole in the dilator body when placed in, the openable sheath can be placed into the bladder under the guide of the dilator body after the urethra is sequentially dilated, and a catheter is easily guided into the bladder. Operation is easy and convenient, hemorrhage during operation, injuries and other complications can be reduced, and urethral stricture surgery treatment difficulty and errors are reduced.

The invention discloses a non-adjustable visual urethral dilator, and relates to the technical field of medical instruments. The non-adjustable visual urethral dilator comprises a feeler lever, wherein a handle is in threaded connection with the bottom of the feeler lever, a handle cover is arranged at the bottom of the handle in a sleeving manner, and a three-way pipe is in threaded connection with the bottom of the handle cover. According to the non-adjustable visual urethral dilator, the handle cover can be taken down, the connection between a first connecting plug and a second connecting plug can be released, the feeler lever can be screwed, the feeler lever and the handle can be disassembled, during mounting, a connecting wire can be placed in a movable groove, the feeler lever is screwed, the first connecting plug and the second connecting plug are connected, and then the handle cover is fixed to the handle; and according to the human urethra dissection characteristics, the headend is designed to be bent in accordance with the physiological radian of the urethra, a high-definition camera is located in the head end and can shoot the interior of the urethra in real time, whenvideos are transmitted to an external display device in real time, medical staff can master the urethral stenosis condition and the expansion effect in real time, and the urethral dilator is convenient for the medical staff to use.

The invention relates to a urethral dilator. The urethral dilator comprises a dilated tube and a driving assembly arranged at one end of the dilated tube; the dilated tube comprises at least two ductpieces in splicing connection, and an adjusting structure capable of circumferential staggered position is arranged between two adjacent duct pieces; and the driving assembly is correspondingly connected with the duct pieces to adjacent the circumferential staggered angle between the two adjacent duct pieces to make the external diameter of the dilated tube increase or decrease. The urethral dilator performs urethral dilatation, the dilated tube and one end opposite to the driving assembly can be inserted into the urethra, the driving assembly operates from the outer portion of the urethra tomake the external diameter of the dilated tube increase to achieve the urethral dilatation; in the whole dilatation process, insertion action is only needed once, no any part is involved between the outer wall of the dilated tube and the inner wall of the urethra, so that the inner wall of the urethra can be scraped or subjected to other oppression, the urethra is dilated naturally, and the process is more relaxed, thereby being capable of alleviating the pain of patients.

The invention discloses a non-invasive air positive pressure urethral dilator, which comprises a hollow urethral orifice blockage tube used for inflating the urethra, and a fastening device used for fastening the urethral orifice blockage tube to the urethral orifice along the axial direction of the urethral orifice blockage tube. The urethral orifice blockage tube can be connected with a digital automatic control inflating device, and the urethra is dilated through inflation, so the non-invasive air positive pressure urethral dilator has the advantages of safety without wounds, no complication, and relief of the pain of the patient; besides, the non-invasive air positive pressure urethral dilator is simple and convenient to operate, and common patients can independently dilate the urethra at home under the guidance of doctors, so the convenience is brought and the burden of visiting the doctor for multiple times is reduced simultaneously.

The invention discloses a urethral dilator. The urethral dilator comprises a conduit, a first vertical through hole is formed in the conduit, dilatation arms are symmetrically hinged to the inner walls of the two sides of the top of the first vertical through hole, and first springs are arranged between the inner walls of the dilatation arms and the first vertical through hole; the first verticalthrough hole comprises a front hole section and a back hole section, air channels, alcohol channels, air feeding mechanisms and alcohol feeding mechanisms are arranged on the two sides of the front hole section, and air generating mechanisms connected with the air feeding mechanisms are arranged on the two sides of the back hole section; the urethral dilator also comprises a linking mechanism linked with the air feeding mechanisms and the alcohol feeding mechanisms. By means of the urethral dilator, the problems that a present urethral dilator is poor in dilation effect and fussy in operationare mainly solved.

The invention discloses a visual electronic mirror urethral dilator and an application method thereof. The visual electronic mirror urethral dilator includes a display screen, a metal mirror pin, a saccule and a visual urethroscope. The front end of the metal mirror pin is connected to the display screen, and a saccule pressurization hole and a water flushing hole are disposed on both sides of thefront end of the metal mirror pin; The diameter of the saccule is 4.5 mm, the inside of the saccule is provided with a hole having a diameter of 2 mm, the tail end of the metal mirror pin passes through the hole and extends out of the saccule, and the saccule communicates with the saccule pressurization hole; and the visual urethroscope is disposed on the tail end of the metal mirror pin, and thevisual urethoscope is connected to the display screen through a conducting wire. The visual electronic mirror urethral dilator is simple in structure, is reasonable in design, can guide the dilator saccule to pass through a urethra narrow section under supervision of a display device, and gradually pressurizes the dilator saccule to make the urethra narrow section incarceratedly dilate, and so, damage is small, bleeding is less, dilatation is complete, a false passage does not occur, and surrounding visceral organs are not damaged. The visual electronic mirror urethral dilator is simple and easy to learn, is easy for beginners to master and is safe to operate, and complications of urethral dilation are reduced.

The invention discloses a urethral dilator with a catheter. The urethral dilator comprises a dilation tube, a grab handle and the catheter. A through hole is formed in the dilation tube, an inflation hole is formed in the grab handle, the catheter is arranged in the dilation tube, the through hole is formed in the top of the dilation tube, the grab handle is connected with the bottom of the dilation tube, the diameter of the catheter is smaller than that of the through hole, and the dilation tube is a sealed hollow dilation tube. The urethral dilator with the catheter has the advantages that the urethral dilator is provided with the arc-shaped catheter and accordingly can be easily fed into the urethra of a patient; the dilation tube can be easily fed into the urethra of the patient under the traction effect of the catheter; the diameter of the catheter is smaller than that of the through hole, so that a urethral catheterization hole can be omitted; the urethral dilator is provided with the sealed hollow dilation tube, the inflation hole is formed in the grab handle, and air can be inflated into the dilation tube, so that the diameter of the dilation tube can be increased, the urethra of the patient can be dilated at one step without replacing dilators with different diameters, the urethral dilator can be inserted into the urethra of the patient advantageously, and the urethra dilation safety can be effectively guaranteed.

The invention discloses a urethral dilator for urethral stricture and a use method of the urethral dilator. The urethral dilator for urethral stricture comprises a urethral probe, a medical metal guide wire, a fascia dilator, a thin sheath and a urinary catheter, the urethral probe is a hollow metal catheter, one end of the urethral probe is inclined upwards, a wire outlet is formed in the upper side of one inclined end of the urethral probe, the thin sheath is in sleeve connection with the fascia dilator with the corresponding model, one end of the thin sheath is provided with an outward turning portion sleeving the surface of the thin sheath, the outward turning portion is torn from the middle to two sides, and the outer diameter of the urinary catheter is smaller than the inner diameterof the thin sheath. The urethral dilator solves the problems that in practical application, the operative treatment period of urethral stricture is long, a patient has to withstand great pain withina period of time, and medical cost is high.

The invention belongs to the technical field of medical equipment, and discloses a urethral dilator for urinary surgery, a control system and a control method. According to the urethral dilator, the left end of a straight tube is connected with an air bag, a guide wire and a catheter penetrate through the middle, and the right end of the straight tube is fixedly connected with a dilating tube; a first pressure sensor is arranged in the air bag, and the left end is fixedly connected with a vent valve; one end of the catheter is connected with a needle cylinder, and the other end is fixedly arranged at the head of the guide wire; the top end of the guide wire is fixedly connected with a dilating rubber plug which is simultaneously fixed at the top of the dilating tube; a second pressure sensor and a third pressure sensor are respectively arranged at the highest inflation point in the dilating tube; the first pressure sensor, the second pressure sensor and the third pressure sensor are connected with the controller through built-in wires. The urethral dilator is reasonable in structure, easy to operate and flexible, urethral dilation can be achieved, urethral injury and pain of a patient can be reduced, medicine can be applied in time after urethral dilation, urethral inflammation is avoided, and the urethral dilator is safe and reliable.

The invention discloses a urethral dilator. The urethral dilator comprises an inner core, a sleeve, a dilating cage, a protective sheath and an operating handle, the rear end of the inner core is arranged in the operating handle in a penetrating mode, the dilating cage is arranged at the front end of the inner core, the sleeve is arranged on the outer side of the inner core between the dilating cage and a handle cylinder in a sleeving mode, and the protective sheath is arranged on the outer side of the dilating cage and the sleeve; the operating handle comprises the handle cylinder, a push-pull button and a knob, the push-pull button is arranged in the handle cylinder and is fixedly connected to the protective sheath; and the rear end part of the inner core is in threaded connection with the knob. According to the urethral dilator disclosed by the invention, expansion force is only applied to the urethral stenosis section, and normal urethra except the urethral stenosis section cannotbe damaged; the urethral dilator not only directly acts on the inner wall of the urethra to dilate the urethra, but also transversely penetrates the whole of the urethral stenosis section from back tofront, and the expanded urethral stenosis section is not prone to relapse.

The invention provides a visual electronic photoacoustic endoscopic device. The device comprises a visual screen, an electronic mirror, a signal external connection device, an operation output unit, amathematical calculation conversion system, an amplification circuit, an imaging system and an implantable expandable air bag. The visual electronic photoacoustic endoscopic device mainly solves theproblems that in the prior art, the severity and depth of urethral stenosis cannot be accurately judged, and the dilation amount of the urethral dilator cannot be accurately determined, and achieves the technical effects of quantitatively observing the severity and depth of urethral stenosis and accurately determining the dilation amount of the urethral dilator.

The invention relates to a male urethra dilater with an endoscope, and the diameter of the dilater can be changed. The dilater comprises a base, a straight mirror canal, a bent mirror canal, a dilatation head, an optical fiber socket, a water injection port and an image interface, the dilatation head is a solid and transparent cone the end of which is spherical; a lens, an image transmission bar,a light transmitting bundle and a aqueduct are arranged in the straight mirror canal and the bent mirror canal; the bent mirror canal is sheathed with a dismountable dilatation sheath the outer diameter of which can be changed, and the shades which are coupled each other and become a three-dimensional cross are arranged in the dilatation head. The male urethra dilater solves the technical problems that the existing male urethra dilater is restricted in use when male urethra is narrow and visibility of the entire urethra can not be reached, and has the advantages that operation is simple, the dilatation sheath can be replaced conveniently, image is clear, use is safe, and cross infection can be prevented effectively.

The invention relates to dilator batch soaking and disinfecting equipment, in particular to urethral dilator batch soaking and disinfecting equipment for the urology department. The urethral dilator batch soaking and disinfecting equipment for the urology department is relatively comprehensive in cleaning and relatively regular in placement after being cleaned. The urethral dilator batch soaking and disinfecting equipment for the urology department comprises a disinfection box, a push-pull cover plate, a baffle, first torsion springs, a washing mechanism and a disinfection mechanism, the push-pull cover plate is arranged at the top of the disinfection box in a sliding mode, the baffle is rotationally arranged in the disinfection box, the first torsion springs are connected between the two sides of the baffle and the disinfection box, the first torsion springs are wound on the baffle, the washing mechanism is arranged on the upper side of the disinfection box, and the disinfection mechanism is arranged on the disinfection box. The washing mechanism is matched with the disinfection mechanism, a dilator is conveniently and automatically cleaned and disinfected, manpower is saved, a hydraulic transmission mechanism is matched with a pushing mechanism and the baffle, and people can conveniently open the baffle to take out the disinfected dilator.

The invention discloses a urethral dilator with relatively good clinical adaptability for the urology department, and relates to the technical field of urethral dilators. A supporting rod comprises a limiting rotating rod, a clamping sleeve, a clamping groove, sliding blocks, sliding rails and hanging blocks; one end of the supporting rod is connected with the clamping sleeve; the clamping groove is formed in the inner side of the clamping sleeve; the sliding blocks are arranged at top parts of two sides of the clamping groove; the top part of each sliding block is provided with the corresponding sliding rail; the end face of one end of each sliding block is provided with the corresponding hanging block; and a dilation cylinder comprises a limiting cylinder, a movable cylinder, a round-headed small end and a brake rod, one end of the brake rod penetrates through the limiting cylinder through a bearing, the other end of the brake rod is movably connected to the inner side of the movable cylinder, and the round-headed small end is arranged at one end of the movable cylinder. The diameter of a dilation part be adjusted, dilators of different models do not need to be frequently replaced to dilate the urethra, so that the discomfort of a patient is reduced; and moreover, the dilator does not need to be held all the time while the urethra is dilated, so that load of a medical worker is relieved.

The invention relates to the technical field of urethral dilation, in particular to a painless urethral dilator. The painless urethral dilator comprises a urethral dilation tube and a supporting and pain relieving mechanism arranged at the end of the urethral dilation tube, wherein a guide wire channel is formed in the center in the urethral dilation tube, a cavity is formed in an inner layer of the urethral dilation tube, the supporting and pain relieving mechanism at least comprises a connecting tube and a limiting device, the end part of the connecting tube is connected with the end part of the urethral dilation tube, a communicating tube is arranged at the center of the connecting tube, the interior of the communicating tube communicates with the guide wire channel, a transfusion chamber is formed in an inner layer of the connecting tube and is located at the outer side of the communicating tube, the interior of the transfusion chamber communicates with the interior of the cavity, a water storage tank is arranged on the outer wall, close to the end part, of the connecting pipe, an electric heating net is arranged at the bottom of an inner cavity of the water storage tank, the outer wall of the water storage tank communicates with a water injection opening, the outer wall of the water storage tank communicates with a transfusion tube, and the end part of the transfusion tube communicates with the interior of the transfusion chamber. According to the painless urethral dilator, heating can be conducted before urethral dilation, the warm urethral dilation tube can enter a urethra more comfortably, and the pain feeling is relieved.

The invention discloses a non-invasive air positive pressure urethral dilator, which comprises a hollow urethral orifice blockage tube used for inflating the urethra, and a fastening device used for fastening the urethral orifice blockage tube to the urethral orifice along the axial direction of the urethral orifice blockage tube. The urethral orifice blockage tube can be connected with a digitalautomatic control inflating device, and the urethra is dilated through inflation, so the non-invasive air positive pressure urethral dilator has the advantages of safety without wounds, no complication, and relief of the pain of the patient; besides, the non-invasive air positive pressure urethral dilator is simple and convenient to operate, and common patients can independently dilate the urethra at home under the guidance of doctors, so the convenience is brought and the burden of visiting the doctor for multiple times is reduced simultaneously.

The invention provides an adjustable visual urethral dilator, and belongs to the technical field of medical instruments. The adjustable visual urethral dilator comprises a handle; an annular groove isformed in the right end of the handle; a feeler lever main body is fixed on the left inner wall of the annular groove; the upper end of the feeler lever main body is slidably connected with a drivingplate; a storage groove is formed in the upper end of the feeler lever main body; a limiting mechanism is arranged in the storage groove; the limiting mechanism is connected with the driving plate toachieve left-right linear motion of the driving plate; a plurality of first connecting plates are movably hinged between the front inner wall and the rear inner wall of the storage groove through a plurality of hinge shafts; and expansion plates are movably hinged to the upper ends of the first connecting plates through the hinge shafts. The urethral dilator is simple, easy to use, cheap, efficient and not prone to injuring an urethra in the using process.

The invention discloses a visual urethral dilation kit, which comprises a urethroscope, a guide wire, a balloon, a guide sheath, a balloon pressurizer, a urethral dilator and a pusher, wherein the balloon is provided with the guide wire; a channel allowing the guide wire to penetrate through is arranged in the urethroscope; the balloon pressurizer and the balloon with the guide wire jointly form a balloon dilator; the balloon pressurizer is connected to the rear end of the guide wire of the balloon and communicates with the balloon through a pressurizing hole in the guide wire; the diameter of the guide sheath is larger than that of the guide wire; the urethral dilator is in sleeving at the front end of the guide sheath; and the pusher is connected to the rear end of the guide sheath and has the same diameter with the guide sheath. According to the visual urethral dilation kit, the modes of balloon dilation and urethral dilator implantation are adopted, the visual technology is combined, and the purposes of accurately, effectively and continuously dilating the urethra and protecting the bladder and kidney functions are achieved.

The invention belongs to the technical field of medical equipment and discloses a urethral dilator for urological surgery, a control system and a method. The left end of a straight tube is connected to an air bag, the middle part is passed through by a guide wire and a catheter, and the right end is fixedly connected with an expansion tube; the air bag The first pressure sensor is built-in, and the left end is fixedly connected with a ventilation valve; one end of the catheter is connected with a syringe, and the other end is fixedly arranged on the head of the guide wire; the top of the guide wire is fixedly connected with an expansion rubber plug, and the expansion rubber plug simultaneously It is fixed on the top of the expansion tube; the inside of the expansion tube is respectively provided with a second pressure sensor and a third pressure sensor at the highest point of inflation; the first pressure sensor, the second pressure sensor and the third pressure sensor are respectively connected to the controller through built-in wires. The invention is reasonable in structure, easy to operate, and has flexibility, can not only realize urethral expansion but also reduce urethral injury and patient pain, can apply medicine in time after urethral expansion, avoid causing urethral inflammation, and is safe and reliable.

The invention discloses a high-pressure balloon olecranon-shaped urethral dilator which comprises a dilator body and a high-pressure balloon. A finger pulp concave part is arranged at the upper end of the dilator body. An olecranon-shaped elbow is arranged at the lower end of the dilator body. A lead-in hole penetrating through the two ends of the dilator body is formed in the dilator body. The high-pressure balloon is arranged on the dilator body and located on the upper portion of the olecranon-shaped elbow. The included angle between the tangent line direction of the olecranon-shaped elbow and the length direction of the dilator body ranges from 30 degrees to 45 degrees. The high-pressure balloon is arranged on the dilator body and can be expanded in sequence, a guide wire is placed in a bladder through the urethrostenosis part under an endoscope, the high-pressure balloon olecranon-shaped urethral dilator is guided by the guide wire to be placed in any narrow part of a urethra for expansion, operation is easy and convenient, urethrostenosis part can be rapidly expanded, and therefore complications such as bleeding and injuries during operations can be reduced, and the difficulty and errors of operation urethrostenosis treatment are reduced.