59 results about "Urethral dilatation" patented technology

The invention discloses a urethral dilatation draining device and a using method. The urethral dilatation draining device comprises a urethral dilatation catheter, an endotheca, a guide wire and a pressure measuring device. The urethral dilatation catheter comprises a catheter head, a catheter body and a catheter tail. The middle of the catheter head is provided with a guide hole. The side face of the catheter body is provided with a side hole. The catheter body below the side hole is covered by two air bags. The endotheca is a hollow bended plastic structure and the top end is provided with a wire guide hole. The urethral dilatation draining device can be used as a normal urinary catheter on the one hand, and accurately passes through a contractured narrow bladder neck under the guide of the guide wire and the support of the hollow endotheca about a patient with the contractured narrow bladder neck after the prostate or bladder neck operation on the other hand, and accurately passes through a pressure-dilated narrow part after placed in the bladder neck. The dilated contracture scar is prevented from retracting and recovering, the pain of the patient is relieved, and the treatment for the patient is more convenient.

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 visual urethra expansion bougic with epitheca capable of being torn open. The visual urethra expansion bougic comprises an expansion bougic body, a camera eyepiece and a water inlet, the tail of the expansion bougic body is provided with an imaging device, the imaging device is internally provided with a chargeable battery, the camera eyepiece is fixed below the imaging device through a movable clamping opening, the head of the expansion bougic body is provided with a camera objective lens, the camera lens is connected with the camera eyepiece through light-guide fibres, the water inlet is formed below the camera eyepiece, the water inlet is connected with a water outlet through a water inlet pipe, the outside of the expansion bougic body is provided with the epitheca capable of being torn open, and the tail of the epitheca capable of being torn open is provided with handles. By means of the visual urethra expansion bougic, urethral dilatation can be conducted under a safe state, operation can be conducted conveniently in a ward or an outpatient clinic, the cost is low, pre-operation preparation time is short, and urethra expansion and placement of a urethral tube can be integrated.

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.

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 relates to the technical field of intelligent urethral surgical instruments, and particularly discloses a urethral dilation path planning system integrating visual SLAM and force perception, which synchronously acquires image data of the internal environment of the urethra and contact force data between the instrument and tissues through an image sensor and a force sensing unit integrated at the front end of the dilation instrument; constructing a three-dimensional environment model in the urethra by utilizing a visual SLAM technology, and positioning the position of an instrument in real time; the force data and the three-dimensional model are fused to generate a dynamic force distribution diagram, and a safe expansion path is planned based on the distribution diagram and the current position of the instrument; dynamically adjusting the advancing direction and the expansion force of the instrument through a closed-loop control system to enable the instrument to move along a planned path; meanwhile, path deviation and force abnormity are detected in real time through a monitoring mechanism, and model updating and path re-planning are triggered.

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 urethral dilatation catheter for urethral stenosis and a using method of the urethral dilatation catheter, and belongs to the technical field of medical instruments. The urethral dilatation catheter for urethral stenosis comprises a catheter. The catheter is connected with a conical block; the catheter is connected with a drainage tube, a first water injection tube, a second water injection tube, a third water injection tube, a fourth water injection tube and a fifth water injection tube; the fifth water injection tube is connected with a valve; the outer wall of thecatheter is sequentially connected with a balloon, a first airbag, a second airbag, a third airbag and a fourth airbag; the first water injection tube is connected with the first airbag, the second water injection tube is connected with the second airbag, the third water injection tube is connected with the third airbag, the fourth water injection tube is connected with the fourth airbag, and thefifth water injection tube is connected with the balloon; and the drainage tube penetrates through the outer wall of the catheter and is provided with a sixth through hole. According to the invention,split type transverse expansion is used for relieving the pain of a patient and preventing infection, bleeding and artificial tracts; and the independently controlled airbags are used for targeted expansion, so that the pain of the patient is relieved and the medical compliance of the patient is improved.

The invention discloses a vibrating device for urethral repair. The device comprises a metal probe and a machine body. The machine body comprises a shell, a power switch and a strength adjusting switch are installed on the surface of the shell, and a driver, a motor, a lithium battery and a circuit board are arranged in the shell. The lithium battery is used for supplying power to the motor. The circuit board, the power switch and the strength adjusting switch are matched and used for controlling starting and rotation frequency of the motor. The driver is connected with the motor and the metal probe and used for driving the metal probe to vibrate when the motor rotates. The vibrating device has the following advantages that the non-surgical urethral dilatation process is standardized, the treatment effect is guaranteed, automatic operation is achieved, treatment strength is adjusted according to types of patients, the long-term treatment effect of urethral stricture dilatation is improved, and the effect of gradually repairing the urethra is achieved. The learning curve of urethral dilatation is shortened and work efficiency is improved. By means of the device, non-surgical urethral dilatation treatment and repair serve as long-term means so as to achieve the aim of the long-term effect of non-surgical urethral stricture treatment.

The invention discloses a urethroscope with an urethral dilatation function. The urethroscope comprises a detachable outer sheath and an endoscope system, wherein the outer sheath is prepared by a transparent hard plastic material with one-time application and sterility, is divided into different models, and is hollow (including vertical large and small channels); a head end is rounded in bullet shape (the tip is slightly flat) and a front section is slightly curved; one side of a rear end has a flushing end communicating with the small channel in the outer sheath, and the small channel is open at the head end; an endoscope system mirror body at middle of the rear end enters the large channel, and the large channel to the tip end is lenticular. The endoscope system is flexible, and the same endoscope is suitable for different types of the outer sheaths. The endoscope system has an integrated structure (like an industrial endoscope system), including an objective lens, a light source, fiber optic fiber, and a display, which can be reused and used without disinfection. The mirror body extends from the rear end of the outer sheath into the longitudinal large passage in the outer sheath to a outer sheath tip lens, and has an own light source and a display system. The urethroscope solves the functions of common urethroscope direct vision examination and dilatation of urethral stricture, and has the characteristics of clear intraoperative vision, simple structure, and easy learning and use.

The visual balloon type urethral dilation device comprises a urethral endoscope and a balloon dilator arranged in the urethral endoscope in a penetrating mode, and the urethral endoscope and the balloon dilator are matched with the urethra of the human body. The observation field of view of the urethra endoscope covers the dilation balloon of the balloon dilator, and visual dilation of the dilation balloon is achieved. The balloon dilator is provided with an independently-controlled fixing balloon, the fixing balloon and a balloon-shaped cavity in the urethra endoscope probe form a detachable fixing structure, the balloon dilator can penetrate through a middle shaft of the probe to move axially when fixing is removed, and the guiding function of the probe is achieved. The balloon dilator can be used in a disposable mode, and cross infection is prevented. And the probe is provided with a panoramic camera and a light supplementing lamp which are symmetrical, so that the visualization precision is improved. The urethra dilatation operation accuracy, safety and diagnosis and treatment efficiency are greatly improved from the aspects of high visualization, dilatation precision adjustment and the like.

The present invention discloses a urethral dilator for urological surgery and a control method thereof, which relates to the technical field of dilators. The urethral dilator comprises a holding cylinder, an expansion mechanism is arranged inside the holding cylinder, the expansion mechanism comprises a telescopic assembly and a water injection assembly, the telescopic assembly comprises a replacement component, the replacement component comprises: a top sphere, an elastic expansion sleeve is arranged on one side surface of the top sphere, the telescopic assembly further comprises: a small motor, the small motor is arranged at the end of the holding cylinder, a threaded rod is arranged on the output end of the small motor, an engaging plate is engaged with the surface of the threaded rod, the water injection assembly comprises: a water inlet plate and a water outlet plate, both the water inlet plate and the water outlet plate are arranged on the inner bottom surface of the holding cylinder. In this solution, by providing the expansion mechanism and by the cooperation of the telescopic assembly, the water injection assembly and the lubrication assembly, high efficiency and comfort of urethral dilation are achieved, which significantly improves the quality of urological surgery and patient experience.

The invention relates to a urethral dilatation bougie drainage tube with a step-by-step dilatation balloon, and belongs to the technical field of medical appliance manufacturing. The urethral dilatation bougie drainage tube comprises a head part, a body part and a tail part, wherein the head part is a single-channel pipe, a channel 4 is arranged in the head part, the front end of the head part isan arc-shaped blind end, and the side wall of the head part is provided with a urine passing hole 5; the body part is a double-channel pipe, a channel 6 and a channel 7 are arranged in the body part,the channel 6 communicates with the channel 4, the pipe wall of a coated balloon 8 is concave, a through hole arranged in the pipe wall of the middle part of the balloon 8 communicates with the channel 7; and the tail part is a double-channel pipe, a channel 9 and a channel 10 is arranged in the tail part, the channel 9 communicates with the channel 6, the channel 10 communicates with the channel7, the tail end of the tail part is provided with a connector 11 and a connector 12, the connector 11 communicates with the channel 9, and the connector 12 communicates with the channel 10. The channels of the head part, the body part and the tail part are made of hard polyethylene, and the head part and the body part are in an L shape. The urethral dilatation bougie drainage tube provided by theinvention has the advantages of less irritation to urethra, higher safety, simple operation, less damage to urethra mucosa, less complication and low occurrence rate of restenosis.

The instant invention relates to the prevention of recurrence of urethral stricture after a conventional treatment. Compositions applicable to the prevention of recurrence of urethral stricture after as conventional treatment, including a pharmaceutically effective amount of halofuginone, are disclosed. Urethral stricture, as common disease, appears secondary to urethritis, urethral infection, urethral inflammation, urethral instrumentation, urethral catheterization, urethral trauma, urethral surgery and all types of urethral lesions. Conventional treatments by internal urethrotomy, urethral dilatation or surgical urethroplasty are available and can cure urethral stricture, but with a relatively high rate of recurrence of the stricture. Halofuginone can prevent the recurrence of urethral stricture after conventional treatment via internal urethrotomy, urethral dilatation or surgical urethroplasty.

The invention discloses a visualized urethral dilating and urinary catheterization device, which comprises a hollow catheter and a guiding part. The telescopic mechanism fixedly connected with it, the telescopic mechanism is provided with a number of connecting rods, the connecting rods and the outside of the telescopic mechanism are covered with hoses, one end of the flexible pipe is fixedly connected with the guide part, The other end of the hose is fixedly connected to the hollow conduit, and the hollow conduit is used to place an observation mirror, and the observation mirror is embedded in the guide part, and the end of the guide part and the guide part The ends of the urine mechanism are all flush with the ends of the observation mirror, and the device can realize visual operation, safely and reliably perform urethral dilation or indwell a catheter, and reduce the risk of urethral (secondary) injury.

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 utility model discloses a catheter for indwelling under the guidance of a zebra guide wire after urethral dilatation failure, which comprises a catheter body, a urine inlet is arranged at the head of the catheter body, a urine outlet is arranged at the tail end of the catheter body, and the urine inlet is communicated with the urine outlet through a channel in the catheter body. A water bag is arranged at the position, located at the near end of the urine inlet, of the head of the urinary catheter body and communicated with a water bag water injection opening through a water bag channel, an opening allowing the zebra guide wire sheath to penetrate through is formed in the center of the head end of the urinary catheter body, the zebra guide wire sheath is arranged in the channel of the urinary catheter body in a drawable mode, and the zebra guide wire sheath is of a hollow structure. And a zebra guide wire is arranged in the zebra guide wire sheath. The urethral catheter is used for indwelling catheterization when a urethral probe of a patient with severe urethral stenosis cannot be inserted, namely urethral dilatation fails. According to the utility model, the trauma to a patient is small, and the body surface has no knife edge; safety is realized; the pain is small.

The invention provides a urethral stenosis dilation device and method, belongs to the technical field of medical instruments, and aims to solve the technical problems of lack of visual guidance and high operation risk in urethral dilation operation. The urethral stricture dilation device comprises a guide head, a guide core, a tube bag, a dilation support and a liquid injection tube. A lens is arranged at the front end of the guide head, the guide core and the tube bag are connected to the rear end of the guide head, the guide core is located in the tube bag, the guide core is sleeved with the expansion support, an elastic film is arranged on the outer circumferential face of the expansion support, and after the liquid injection tube is communicated with the interior of the expansion support, the outer end of the liquid injection tube is led out to the tail end of the expansion device. The problem of high operation risk due to lack of visual guidance in the prior art is solved, and the safety is improved.

The invention discloses a clinical urethral dilatation auxiliary device which effectively solves the problem that urethral dilatation is inconvenient to operate. Comprising a bottom plate, a positioning plate is arranged above the bottom plate, a guide groove is formed in the right side of the positioning plate, a vertical groove is formed in the positioning plate, a sliding groove is formed in the positioning plate, a sliding plate is slidably connected into the sliding groove, an inverted-L-shaped groove is formed in the sliding plate, an inclined groove is formed in the sliding plate, and a sliding column is arranged in the inverted-L-shaped groove; the front end of the sliding column is detachably connected with a connecting block through a connecting device, an elastic sleeve is arranged at the front end of the connecting block, a positioning sleeve is detachably connected to the bottom plate, an elastic barrel with a downward opening is arranged at the lower end of the elastic sleeve, and inserting elastic pieces are arranged on the front side and the rear side of the positioning sleeve correspondingly. A balancing weight is arranged at the upper end of the supporting block, a urethra probe is detachably connected to the right end of the supporting block, and the right end of the urethra probe is located over the axis of the elastic sleeve; the device is novel in structure, high in usability and beneficial to operation of medical staff.

The invention provides a urethral stenosis dilatation drainage tube, and belongs to the technical field of medical device manufacturing. The drainage tube includes a urethral dilatation drainage tube,a supporting tube and a guide wire; the urethral dilatation tube is composed of a head, a body and a tail, the head is a single pigtail tube, a channel is arranged in the single pigtail tube, the tube wall is provided with side holes, the front end of the head is tapered, the outer wall is provided with a fixing traction line, the tail of the single pigtail tube is provided with a traction line channel hole, and a traction line enters the channel through the hole; the body is a double-channel tube, and a cylindrical airbag is arranged and fixed on the tube wall; the tail end of the tail is provided with a ureteral bag connector, a traction line buckle and a water injection joint; the supporting tube is a single-channel tube, the head end is a metal tube, and a screw cap at the tail is screwed on a tail joint of the urethral dilation drainage tube; and the body of the guide wire is rigid, and the head end is prepared from a soft material. The urethral stenosis dilatation drainage tubeachieves the following beneficial effects: the drainage tube is simple to operate, easily passes through stenosis urethra, and does not cause secondary damage to the urethra.

The invention discloses a bladder function improvement system and method for urethral dilation. The system identifies tissue viscoelasticity and calculates mechanical resonance frequency on the basis of a Kelvin-VoIP model, and a dynamic pulsating expansion pressure field fitting tissue characteristics is generated through a dynamic rheology driving unit. According to the method, a mechanical electrophysiology double-frequency phase locking technology is adopted, nerve electrical stimulation is accurately anchored to the wave crest phase of mechanical pressure waves, and the synergistic interaction of tissue physical remodeling and nerve reflex arc repairing is achieved. Meanwhile, a spasm-induced fluid impedance instantaneous damping feedback mechanism is introduced into the system, and when abnormal myoelectricity is monitored, the rigidity of the system is instantaneously reduced so as to actively defend damage caused by spasm. Closed-loop control is established through quantified rheological indexes, the problems that traditional rigid expansion is large in blindness and prone to tearing are solved, and precise, intelligent and safe rehabilitation treatment of urethrostenosis is achieved.

1. The name of the product of this design: expansion bladder of urethral dilator (03). 2. Purpose of the product of this design: The purpose of the overall product is to be used for pet medical treatment and dilation of the pet's urethra, and the local use for which protection is requested is the expansion capsule used to be inserted into the pet's urethra for urethral dilation. 3. The key design features of this design product lie in the shape of the solid line parts in each view. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. Other situations that need explanation Other explanations: Each design of this design product requests partial design protection. The solid line part is the part requested for protection, the dotted line part is the part not requested for protection, and the enlarged view of part A is the enlarged view of part A in the three-dimensional diagram.

1. The name of the product of this design: expansion bladder of urethral dilator (02). 2. Purpose of the product of this design: The purpose of the overall product is to be used for pet medical treatment and dilation of the pet's urethra, and the local use for which protection is requested is the expansion capsule used to be inserted into the pet's urethra for urethral dilation. 3. The key design features of this design product lie in the shape of the solid line parts in each view. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. Other situations that need explanation Other explanations: Each design of this design product requests partial design protection. The solid line part is the part requested for protection, the dotted line part is the part not requested for protection, and the enlarged view of part A is the enlarged view of part A in the three-dimensional diagram.

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 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 urethral dilator comprises a main body structure and an incision knife, an incision knife guide rail groove is formed in the surface of the main body structure; an embedding body is arranged at the bottom of the incision knife; the embedded body is embedded into the incision knife guide rail groove, and the incision knife can be pushed and pulled in the direction of the incision knife guide rail groove. The urethral dilator is combined with an incision knife, operation is easy, safety is high, the application scene is wide, a doctor can conduct dilation operation conveniently, and when necessary, the dilation operation can be conducted at the same time to conduct internal incision on a narrow part; the urethral dilator main body structure can be a disposable instrument and is low in price, the incision knife is simple in structure, convenient to clean and capable of being repeatedly used, and the use cost is further reduced through combination of the incision knife and the urethral dilator; moreover, a medical worker can enter a guide wire through the guide wire cavity, the urethral dilator enters the cavity catheter under the guidance of the guide wire, and a contrast agent and a lubricant can be injected into the guide wire cavity, so that the success rate of dilation operation is effectively improved; and the stretching length and the length of an incision part can be conveniently identified, so that urethral dilatation and incision operations can be accurately performed.

The present invention relates to the field of medical technology, and discloses a urethral endoscopy device and a urethral dilation device, comprising a dilator, a controller and an inserter. The dilator comprises a rail plate, sliders are slidably installed on both sides of the top of the rail plate, a connecting rod is fixedly installed on the top of the slider, and a cone is fixedly installed on the inner side of the top of the connecting rod. The controller comprises a support, a signal converter is fixedly installed on the right side of the top of the support, and three supporting plates are fixedly installed on the left side of the top of the support. When the forward part moves to the position of the urethra that needs to be expanded, the electric push rod is started to extend to form a positive pressure environment in the inner cavity of the piston cylinder 2, so that it is connected to the trachea to inflate the airbag, thereby driving the expansion plate to open outward to expand the urethra at that location. Since this design performs the dilation surgery by observing the real-time picture inside the urethra, it can increase the accuracy and effectiveness of the surgical treatment.

1. The name of this design product: urethral dilator. 2. Application of this product design: used for urethral dilation. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

Proposed is a drug-eluting expandable urethral balloon catheter. The drug-eluting expandable urethral balloon catheter includes a tube part inserted into the urethra, a separation prevention part including a first balloon that expands in the bladder according to the inflow of fluid to prevent separation the of tube part and maintain airtightness of the bladder, a drug injection part having a plurality of pores formed so that a drug is injected into the stricture site of the urethra, a urethra expansion part including a second balloon which is positioned on a front end of the drug injection part and inflates or contracts according to the inflow and outflow of fluid, and a branched connection part branched from one side of the tube part to be connected thereto so as to enable fluid to flow in and out of the tube part.

The utility model relates to the technical field of medical instruments, in particular to a visual urethra dilatation device which comprises a urethra probe, the urethra probe is composed of a straight rod portion and a bent rod portion, a plastic sleeve is sleeved on the outer side of the urethra probe, the front end of the bent rod portion is fixedly connected with the inner front end of the plastic sleeve, and a plurality of layers of dilatation outer sheaths are sleeved on the outer side of the urethra probe. The expansion sheath is in sliding contact with the outer side of the urethral probe and slides in the plastic sleeve. According to the urethral dilator, the dilation outer sheaths can be guided through the urethral probe, so that the plurality of layers of dilation outer sheaths correspond to the urethral probe in shape, and the urethra of a patient can be dilated to the required width; and the multiple layers of expansion outer sheaths are all located in the plastic sleeve, so that when the expansion outer sheaths move in the plastic sleeve, the plastic sleeve makes contact with the urethra of the patient, the expansion outer sheaths are prevented from making contact with the urethra of the patient, scraping and pressing on the urethra of the patient are reduced, and the pain of the patient is relieved.