249 results about "Urethral catheterization" patented technology

The invention discloses a mobile life support system, comprising a general stretcher and a bearing frame arranged at the lower part of the general stretcher, a supporting transportation cart is arranged at the lower part of the bearing frame, an inflatable biochemistry-prevention separating cover is arranged at the upper part of the general stretcher, rapid locks of stretcher handles are arranged at two ends of the bearing frame, a rapid locking hole and a drawer connected with the rapid lock on the supporting transportation cart, and a first fixing hole and a second fixing hole which respectively receive a transfusion pole and a urethral catheterization bag are arranged on the side surface of the bearing frame, an assisted lifting rod or a hanger fastening handle are respectively arranged at two sides at two ends of the bearing frame, and a limit neck for locating the general stretcher and the supporting transportation cart are arranged on the bearing frame. The system integrates the first aid, recovery, monitoring, treating, transportation, prevention and protection, and information storage and transmission into one body, thereby being capable of prompting emergent treatment of medical institution and rapid reacting capacity and leading severe patients to obtain timely cure within prime time.

The invention discloses an autonomous urethral catheterization device and method. The device comprises a urethral pump, a boost device and a handheld activator, wherein the urethral pump comprises a pump body; an anti-drop disc is arranged at the front end of the pump body; a sealing valve, a sealing magnet, drainage blades and a magnetic induction rotating body are arranged in the pump body; the magnetic induction rotating body is arranged in the drainage blades; the sealing magnet is arranged in the sealing valve; the boost device comprises a handheld end and a boost rod; the handheld activator comprises a shell; a control switch and an indicator light are arranged on the top of the shell; a control circuit board, a battery, a rotating motor and a urethral pump activator are arranged inside the shell; and the control circuit board, the battery, the rotating motor and the urethral pump activator are sequentially connected through lines. According to the device disclosed by the invention, urethral catheterization of a patient every day is not needed, a urine drainage bag of the patient is not used, the problems such as extremely high discomfort brought to the patient due to frequent urethral catheterization and large-area infection caused by ordinary catheters can be solved, the device disclosed by the invention is convenient to use, and the incidence rate of urethral diseases is greatly reduced.

The invention discloses a multi-purpose three-way connector for clinical care and a use method thereof. The multi-purpose three-way connector is characterized in that a valve core is installed on a T-shaped three-way valve body; a T-shaped channel is formed in the valve core; a T-shaped convex mark corresponding to the T-shaped channel is arranged on the top surface of the valve core; and a conical plug matched with a stomach tube horn mouth, a conical jack matched with the conical plug of a nasal feeding needle and a cylindrical jack matched with an infusion tube head are respectively arranged on three outlets of the three-way valve body. The multi-purpose three-way connector can be used for patient nasal feeding, urethral catheterization and bladder irrigation, thereby not only providing convenience for the operation of medical personnel, but also solving the pain of a patient.

The invention provides a degradable expandable local urine tract intracavity support system to effectively support a local lesion urine tract after urine tract stricture obstruction surgery and to prevent stricture obstruction replase due to postoperation scar hyperplasia and contracture. The support system is made of degradable material and can be degraded after scar stability and before adhesive lithogenesis formation and can be discharged with urine outside the body; and the support system comprises but is not confined to a naked rack, a drug eluting stent or a drug coating layer rack, a film covering rack, etc. The support is compressed into an exotheca with small caliber and then released after reaching a target urine tract position, then expanded and enlarged to support the lesion urine tract; the internal diameter and length of the support can be adjusted according to clinic demands; and compared with traditional double J type ureter racks and catheters, interference and damage to normal urine tract except for the stricture part can be avoided, and limitation of rack lumen inner diameter by the urine tract physiological stricture part can be avoided.

The invention discloses a multifunctional indwelling urethral catheterization device which comprises a catheter, a drainage tube and a drainage bag, wherein a branch tube is sidewards arranged on the drainage tube by a three-way tube; a urination monitoring system is additionally mounted at the tail end of the branch tube and comprises a PCB (printed circuit board), a microcontroller welded on the PCB, a parameter setting keyboard, a display screen, a pressure sensor, a flow sensor, an electronic drain valve, a realtime clock module, an early warning device and a remote monitoring platform; the parameter setting keyboard, the display screen, the pressure sensor, the flow sensor, the electronic drain valve, the realtime clock module and the early warning device are connected with the microcontroller; the pressure sensor is connected with the tail end of the branch tube in an inserted and sealed manner; and the electronic drain valve and the flow sensor are sequentially and additionally mounted on the drainage tube and located in the downstream position of the three-way tube. The device integrates functions of automatic pressure urination, urination data (urination frequency, urination time and urine volume) acquisition and transmission, parameter adjustment, crisis early warning and remote monitoring, is high in practicability, operates precisely, facilitates popularization, saves manpower consumption of a hospital, and can provide important data information for medical research.

The invention relates to a nano silver-carrying-silicon dioxide catheter and a production method thereof, which belongs to a medical urethral catheterization device and the production method thereof. The invention mainly aims at solving the technical difficult problem that the existing catheter is easy to produce bacteria on the surface and further causes complications. The technical scheme of the invention is as follows: the nano silver-carrying-silicon dioxide catheter is prepared by a nano silver-carrying-silicon dioxide antibacterial agent and silica gel or latex, and the mixture ratio is that nano-silver-carrying-silicon dioxide is added in each 100ml of the silica gel or the latex. The method for producing the nano silver-carrying-silicon dioxide catheter comprises the following steps: 1) producing the nano silver-carrying-silicon dioxide antibacterial agent; and 2) producing the catheter: A) material preparation: firstly weighing raw materials according to the mixture ratio of adding 0.05-2g of the nano silver-carrying-silicon dioxide antibacterial agent into each 100ml of the silica gel or the latex, then pouring into a stirring machine for uniformly stirring, and monitoring the viscosity; B) impregnation; C) plasticization; D) lip curling, powdering and demolding; and E) removing powder, and finally carrying out inspection and packaging.

The invention provides a urethral catheterization device and an abdominal pressure monitoring system. The urethral catheterization device comprises a catheter and a drainage bag used for collecting liquid in the catheter. A capillary tube to be connected to a pressure sensor is communicated with the catheter. A first control valve is disposed on the catheter and between the capillary tube and the drainage bag. A buffer sac is disposed on the capillary tube and close to the connection of the capillary tube with the catheter. The buffer sac disposed on the capillary tube effectively prevents urine in the catheter from being reversely sucked into the capillary tube, so that the urine is effectively prevented from flowing back to the sensor to disable the same, accuracy in urinary bladder pressure detected by the pressure sensor is guaranteed, pollution of the pressure sensor by the urine is also prevented and cross infection caused by the reuse of the sensor is avoided.

The invention discloses an automatic urinary catheterization system. Closing of a urinary catheterization tube can be automatically controlled according to changing of urine pressure of a human body, automatic urination is realized, the control precision is high, individual control can be realized according to different patients and the current postures of the patients, and the normal bladder functions of a patient are guaranteed to the great extent. In order to precisely and automatically control an automatic urination process, an initial value processing unit, a signal processing unit, a urination threshold value setting unit, a urination channel control unit and an early warning unit are arranged in a control unit of the system; and moreover, an end of a catheter with an electronic liquid draining valve is connected with an intelligent urine volume measuring unit. The initial value processing unit is used for setting initial values of a pressure sensor unit; the signal processing unit is used for processing signals of an acquired value of the pressure sensor unit; the acquired value is compared with a urination threshold value set in the urination threshold value setting unit; and when the acquired value reaches the urination threshold value, a urination channel is opened by using the urination channel control unit.

The invention discloses a protein antimicrobial catheter. A non-diffusivity nanoscale smooth coating is arranged on the surface of the material of the catheter body, the main ingredient of the coating is natural protein harmless to the human body, the thickness of the coating is 10 nm to 500 nm, and the RMS roughness of the coating is not larger than 100 nm. The invention further discloses a manufacturing method of the protein antimicrobial catheter. The method includes the main steps that the material of the catheter body is pre-processed, protein glue solution is prepared, the surface of the material of the catheter body is coated with the protein glue solution one time or multiple times, and finally the protein glue solution adhering to the surface of the material of the catheter body is cured with the method of natural curing or microwave curing or hot curing or ultraviolet curing or cross-linking curing or the like. The catheter manufactured with the method is excellent in bacteria resistance and antibacterial effects, economical burdens and body pains caused when a catheter is frequently replaced for a patient can be reduced, the catheter is good in stability and low in virulence in body, some discomfort symptoms will not be caused to the patient, and the catheter is safe in clinical use.

The invention discloses an urinary bladder pressure alarm automatic control urine discharging device which comprises an urethral catheter, a switch, an urinary bladder pressure sensor and an in vitro pressure data signal receiving storage alarm, wherein one end of the urethral catheter is provided with an air bag and an urethral catheterization port; the other end of the urethral catheter is provided with an urine discharging port communicated with the urethral catheterization port and an air bag valve communicated with the air bag; the switch is arranged on the urine discharging port and is used for controlling to open and close the urine discharging port; the urinary bladder pressure sensor is arranged on the switch and is used for detecting the pressure in the urinary bladder; and the in vitro pressure data signal receiving storage alarm is used for receiving a pressure signal sent by the urinary bladder pressure sensor and sending alarm information when the pressure signal exceeds a set value. The urinary bladder pressure alarm automatic control urine discharging device is convenient to use. The influence of the retained urethral catheter on the daily life of a patient is greatly reduced. A data signal can also be remotely transmitted to a hospital by the wireless network, so that a doctor analyzes the variation of the bladder function of the patient and provides important reference basis for diagnosis and treatment of diseases.

The present invention provides an assembly for the preparation of a medical device having a porous coating comprising hydrogen peroxide. Particularly interesting medical devices are catheters (such as urinary catheters), endoscopes, laryngoscopes, tubes for feeding, tubes for drainage, guide wires, condoms, urisheaths, barrier coatings e.g. for gloves, stents and other implants, extra corporeal blood conduits, membranes e.g. for dialysis, blood filters, devices for circulatory assistance, dressings for wound care, and ostomy bags. The coating is in particular a hydrophilic coating formed from cross-linked polyvinylpyrrolidone. In one embodiment, the assembly holds a dry catheter element in one compartment of a package and an aqueous hydrogen peroxide solution in another compartment. The solution may also comprise stabilizers, e.g. chelators, and osmolality increasing agents. The catheter for insertion in the urethra is useful for the treatment, alleviation or prophylaxis of microbial infections such as urinary tract infections (UTI).

A bionic urethral catheterization device comprises a catheter and a balloon arranged on the upper section of the catheter, wherein the catheter includes a balloon filling medium convey cavity and a urine drainage cavity, or the catheter includes a balloon filling medium convey cavity, a urine drainage cavity and a lavage cavity; a check valve is arranged at the lower end of the balloon filling medium convey cavity; a hole communicated with the balloon is arranged on the section, which is covered by the balloon, of the balloon filling medium convey cavity; a urine inlet is arranged at the upper end of the urine drainage cavity and a urine outlet and a relief valve simulating the physiological function of bladder sphincter are arranged at the lower end of the urine drainage cavity. The bionic urethral catheterization device can prevent and cure uroschesis after indwelling the urethral catheterization device and avoid urinary tract retrograde infection and bladder adhesion.

An indwelling urinary catheter for transurethral introduction into a urinary bladder is shown and described herein. The catheter includes a flexible catheter shaft having a wall, a filling channel is integrated into the wall, and a thin foil balloon element having a film-like structure. The balloon element when positioned in the bladder is adapted to contact internal urinary bladder structures over at least about 30 percent of a balloon element surface area. The seal is greater than seals of equivalent balloon structures.

The invention discloses a pressure measurement noninvasive anti-blocking urine guiding device. The pressure measurement noninvasive anti-blocking urine guiding device comprises a catheter, a bladder pressure measurement module, an internal urethral orifice blocking module, a noninvasive air sac module, a diluted liquid injection module, a sterilization module, a urine storage module and an anti-blocking urine guiding module. The pressure measurement noninvasive anti-blocking urine guiding device is delicate and reasonable in structural design, utilizes the negative pressure suction principle, can still drain urine when a few blood clots and other foreign materials are generated inside the bladder, effectively guarantees the urine guiding and drainage effects, and enables a user to visually know the condition of the pressure inside the bladder through the bladder pressure measurement module and know the urine guiding and drainage effects and the circulation condition of a drainage passage in real time when indwelled in a urethral catheter. The noninvasive air sac module wraps the catheter, can achieve the function of negative pressure suction, and can relieve the pain in urethral catheterization. The sterilization module can sterilize the indwelled catheter for long time, largely reduces the occurrence rate of infection caused by the indwelled catheter, guarantees use safety, prolongs the effective indwelling time, reduces the frequency of replacing the urethral catheter, largely saves medical cost and relieves the pain of patients.

The invention discloses a urine-leakage-prevention and blockage-prevention catheter, which comprises a catheter body and a guide wire, wherein the center of the catheter body is a urine discharging passage; the front section of the catheter body is provided with a self-expansion opening section; the front end of the self-expansion opening section is provided with a cap-shaped front blind end; the middle section of the catheter body is provided with a urine-leakage-prevention air bag; an anti-sliding air bag is arranged between the urine-leakage-prevention air bag and the self-expansion opening section; the urine-leakage-prevention air bag and the anti-sliding air bag are connected to a multi-passage air bag inflating connector arranged at the back section of the catheter body through an inflating passage; the self-expansion opening section is connected with a flushing and medication connector arranged at the back section of the catheter body through a flushing and medication integral passage; the back end of the catheter body is a drainage outlet; and the drainage outlet is provided with an opening sealing cap. The urine-leakage-prevention and blockage-prevention catheter has the advantages that the complete blockage probability of the catheter caliber part is reduced; the injury on the human body is reduced; the retention of harmful urine in the bladder is reduced; and the mucomembranous avascular necrosis injury due to long-time compression of the urethra inner wall tissue by the air bag in the same position is avoided.

The invention discloses a novel balloon urethral catheter which comprises a catheter body. The catheter body comprises an inner layer catheter tube and an outer layer wrapping the surface of the inner layer catheter tube, a balloon tube is arranged between the inner layer catheter tube and the outer layer, a balloon filling cavity channel communicated with the balloon tube is formed in the catheter wall of the inner layer catheter tube, the inner layer catheter tube is made of thermoplastic materials, and the outer layer is made of thermosetting materials. The novel balloon urethral catheter is capable of guaranteeing smoothness of a liquid drainage cavity channel and the balloon filling cavity channel, and lowering medical risks when products are used and machining difficulty when the products are machined.

The invention discloses a visual membrane and prostatic part urethra dilation catheter which comprises a catheter body, a urethral catheterization cavity, an irrigation cavity, a front balloon cavity and a rear balloon cavity. The urethral catheterization cavity, the irrigation cavity, the front balloon cavity and the rear balloon cavity are arranged in the catheter body, one end of the urethral catheterization cavity is connected to the head of the catheter body and provided with at least two holes, and the other end of the urethral catheterization cavity is led out from the tail of the catheter body and connected with a water injection tube. The visual membrane and prostatic part urethra dilation catheter is characterized by further comprising a visual probe for observing the path of the catheter body entering a body, the visual probe enters the catheter body through the urethral catheterization cavity and is arranged in one hole in one end of the urethral catheterization cavity, and a signal wire of the visual probe is led out from the other end of the urethral catheterization cavity and connected onto a control computer. The internal space of the dilation catheter is reasonably used, the visual probe is arranged in the urethral catheterization cavity, and the problems of deficiency of dilation catheter space and incapability of setting the visual probe are solved.

The invention relates to a disposable urethral catheter for measuring body temperature and abdominal pressure. The disposable urethral catheter for measuring the body temperature and the abdominal pressure is characterized in that one end of a pressure measuring pipe is connected to an eduction pipe behind an eduction port of on end of the urethral catheter, an inner cavity of the pressure measuring pipe is communicated with the inner cavity of the eduction pipe, urine flow direction control devices are arranged on the eduction pipe and the pressure measuring pipe, and a manometer connector connected with a manometer is arranged at the other end of the pressure measuring pipe. The disposable urethral catheter for measuring the body temperature and the abdominal pressure is disposable, simple in structure, low in cost and convenient to use, and solves the problems of body temperature testing, abdominal pressure testing and comparison of the temperature on the body surface and the temperature inside the body when a patient is in surgery or in emergency or when the patient cannot move conveniently are solved. Furthermore, the same urethral catheter can be used for the patient for continually and precisely measuring the body temperature and the abdominal pressure simultaneously, pain of the patient is reduced, and economic burden of the patient can be reduced. A probe of the disposable urethral catheter can continually and precisely measure the body temperature and the abdominal pressure without any external power supply, the precision can ranges from+0.2 DEG C to -0.2 DEG C, and accurate information can be fed back to relevant medical staff in time.

The invention discloses a novel urethral catheterization device for nursing of the urinary surgery. The device comprises a supporting frame, a supporting platform is fixedly connected with the top ofthe supporting frame, and a double-cavity cylinder is fixedly connected with the top of the supporting platform; a liquid storage container capable of moving up and down is arranged in a left cavity of the double-cavity cylinder, a weighing component is arranged at the bottom end of the liquid storage container, a negative pressure pipe is connected with the left side of the upper end of the liquid storage container, and a negative pressure component used for intermittently pumping negative pressure is connected with the inside of the negative pressure pipe; a medicine storage cylinder and a cleaning cylinder are arranged in a right cavity of the double-cavity cylinder, and pushing-out pistons capable of moving up and down are arranged in the medicine storage cylinder and the cleaning cylinder; a double-cavity pipe is connected with the top of the double-cavity cylinder, and a fixing cover sleeves the top of the double-cavity pipe. The device effectively solves the problems that an existing urethral catheterization device cannot conveniently and quickly help a patient to urinate and cannot help a medical worker to conduct uroscopy and detection for the urine output of the patient,recover the bladder function of the patient, treat intravesical inflammation and flush the bladder of the patient.

The invention provides a PVC ultra-smooth hydrophilic catheter and a preparation method thereof and relates to a catheter used for short-time immediate urinary catheterization of a medical care unit or persons in a family and a preparation method of the catheter. The aim is to provide the PVC ultra-smooth hydrophilic catheter and the preparation method of the PVC ultra-smooth hydrophilic catheter, wherein the PVC ultra-smooth hydrophilic catheter is simple in structure, small in surface friction force and capable of being easily and conveniently inserted in the body of a patient and reliving pain of the patient. The PVC ultra-smooth hydrophilic catheter comprises a catheter body which is provided with at least one urine guiding hole, and a hydrophilic coating is arranged on the outer wall of the catheter body. The preparation method of the PVC ultra-smooth hydrophilic catheter includes the following steps that the catheter body is prepared; coupling treatment is performed on the surface of the PVC catheter; the surface of the PVC catheter is coated with the hydrophilic coating; packaging and sterilizing are performed.

The invention relates to a prostate expansion catheter, in particular to a prostate expansion catheter with a visual precise positioning function. A main body of the prostate expansion catheter is an expansion catheter body provided with a urethral catheterization opening in the front end, and the urethral catheterization opening is communicated with an expansion catheter internal tube; the periphery of the expansion catheter body is sleeved with a fixing bag and an expansion bag in sequence from front to back, wherein the fixing bag is used for fixing the expansion catheter body into the urethra, and the expansion bag is used for expanding the urethra; the periphery of the expansion catheter body is further provided with a positioning sleeve which movably sleeves the expansion bag and can move axially relative to the expansion catheter body; a fixing bag communicating cavity and an expansion bag communicating cavity are formed in the expansion catheter body, wherein the front end of the fixing bag communicating cavity is communicated with the fixing bag, the front end of the expansion bag communicating cavity is communicated with the expansion bag, and the rear end of the fixing bag communicating cavity and the rear end of the expansion bag communicating cavity are communicated with the outside; the urethral catheterization opening is located in the front portion of the fixing bag. Through the prostate expansion catheter, it can be ensured that the expansion bag is located on the prostatic part of the urethra and the expanding length of the expansion bag keeps being precisely matched with the prostatic part of the urethra of a patient, and the prostate expansion catheter can be used as a urine catheter after an operation without secondary intubation.

The invention discloses a super-lubricant antibacterial catheter and a preparation method thereof. The body of the catheter is orderly coated with a chitosan antibacterial layer and a hydroxypropylcellulose lubricating layer, and then dried and sterilized, and consequently, the super-lubricant antibacterial catheter can be obtained. The super-smooth antibacterial catheter is capable of achieving the effects of antibiosis and lubrication by use of the antibacterial capability of the chitosan and the lubrication capability of the hydroxypropylcellulose, wherein the chitosan serves as an antibacterial ingredient of biogenetic derivation, and is capable of reducing drug resistance and untoward effects caused by medical bacteriostatic agents to a user.

The invention relates to the technical field of medical appliances and provides a urethral catheterization apparatus for preventing adhesion of bacteria. The urethral catheterization apparatus comprises a catheter, a flexible hose, a first manifold, a vibration unit, a fixing unit, a liquid supply unit and a control unit; the top end of the catheter is provided with a urine inlet and the bottom end is communicated with the first manifold; the flexible hose is inserted into the catheter. The top end of the flexible hose is connected with the fixing unit and the bottom end is communicated with the liquid supply unit. The flexible hose is provided with a plurality of first micro-pores along the length direction of the flexible hose; the vibration unit is arranged on the fixing unit. The fixing unit is used to clip the vibration unit to a specified position in the catheter. The control unit is electrically connected with the vibration unit and the liquid supply unit separately. The apparatus can effectively prevent the adherence of the planktonic bacteria on the catheter, inhibit the growth of bacteria on the catheter and prevent the formation of bacterial biofilm on the catheter fromthe source.

The invention discloses a urethral catheterization device for the urology department. The device comprises a urinary catheter, a front connecting pipe connected to the tail end of the urinary catheter in an inserted mode, a normally-closed connecting component connected to the rear end of the front connecting pipe in a sleeved mode, a rear connecting pipe connected to the rear end of the normally-closed component in an inserted mode and a drainage bag connected to the rear end of the rear connecting pipe in an inserted mode. When a sacculus makes contact with the inner surface of a bladder, a urination hole cannot be blocked, and urine in the bladder cannot make the urine left in the bladder of a patient due to the fact that the position of the urination hole is higher than that of the sacculus; a film is raised through pressure in a liquid collecting cavity, flow of the urine inside a pipe body is indirectly controlled between the liquid collecting cavity and a rear pipe through channel conduction, and then the bladder function of the patient is exercised, and the patient does not need to regularly and manually control the connecting pipe of the drainage bag to exercise the bladder function.

The invention relates to a catheterizing device for promoting wound healing and bringing the convenience to drainage. The catheterizing device comprises a catheter body, and the two ends of the catheter body are the head end and the tail end respectively; three cavities are formed in the tail end of the catheter body, and are the water injection cavity, the drug injection cavity and the liquid discharging cavity respectively; a ball sac is arranged at the portion, close to the head end, on the catheter body; stripe protrusions are formed in the portion, tightly close to the ball sac, of the outer surface of the catheter body, and are distributed in the radial direction of the periphery face of the catheter body to form a stripe section, guide grooves are formed between the adjacent stripeprotrusions, and are distributed in the axial direction of the catheter body, and the periphery of the stripe section of the catheter body is also coated with a coating. The catheterizing device has the advantages that the superficial area of the outer coating of a catheter is increased, a coating material can have longer effect time, and therefore the higher effect is achieved; meanwhile, urine can be drained, and infection is avoided.

The invention provides a urethral catheter and a method. The urethral catheter comprises a head, a middle part and a tail which are sequentially connected, wherein a medicine outlet is arranged at thefront end of the head, the outer side of the head is sleeved with a balloon which can be full after water filling to cover the head, and at least two urethral catheterization ports are formed in thepart which cannot be covered with the balloon; a water injection pipe, a urination pipe and a medicine injection pipe which are connected adjacently are accommodated in the middle part, the medicine outlet is communicated with the medicine injection pipe, the two urethral catheterization ports are communicated with the urination pipe, and the balloon is communicated with the water injection pipe through a water outlet; a water injection cavity, a urethral catheterization cavity and a medicine injection cavity which are in one-to-one correspondence connection with the water injection pipe, theurination pipe and the medicine injection pipe are arranged at the tail. The urethral catheter avoids contact between the tip of the head of the urethral catheter and urinary bladder walls and avoidsirritation of the tip of the head of the urethral catheter to urinary bladders.

The invention discloses a catheter, comprising a head, a tail, a medicine injection pipe, a water injection pipe and a water bag, wherein a urination port and a medicine outlet are formed in the head; a medicine injection port, a urine outlet and a water injection port are formed in the tail. The catheter is characterized in that a urination channel which is communicated with the urination port and the urine outlet is formed among the medicine injection pipe and the water injection pipe and the urethral canal wall of a human body; a urine collection end is arranged on one end close to the tail, and is fixed on the tail through a flexible hose; the water injection port is communicated with the inner cavity of the water bag through the water injection pipe. According to the catheter, the flushing effect on the urethral canal is realized when a patient urinates, pathogenic microorganisms are prevented from producing retrograde infection at the external urethral orifice, the occurrence of inflammation is avoided, the service life of the catheter is prolonged, the cross section area of the catheter is greatly reduced, the irritation to the urethral canal is small, and the discomfort of the patient is alleviated. The catheter has the advantages that the structure is novel, the beneficial effect is obvious, and the application and popularization are facilitated.

The invention discloses a urologic clinical urethral catheterization device which comprises a base. A control switch block is arranged at a corner of the upper surface of the base, an input end of thecontrol switch block is electrically connected with an output end of an external power source, a cleaning fluid tank is arranged on one side of the upper surface of the base, a first barrel cover isconnected with an opening end of the cleaning fluid tank in a threaded manner, a urine recycling tank is arranged on the other side of the upper surface of the base, a second barrel cover is connectedwith an opening end of the urine recycling tank in a threaded manner, a first hose is arranged on the lower portion of the right side surface of the cleaning fluid tank, a water pump is arranged in the middle of the first hose and is fixedly connected with the right side surface of the cleaning fluid tank, an input end of the water pump is electrically connected with an output end of the controlswitch block, and a second hose is arranged on the upper portion of the right side surface of the urine recycling tank. The urologic clinical urethral catheterization device has the advantages that the urologic clinical urethral catheterization device is convenient to use, and has diversified functions and urethral catheterization and irrigation functions; cleaning fluid can be heated, accordingly, the bladders of patients can be prevented from being stimulated by cold cleaning fluid, the urologic clinical urethral catheterization device can be conveniently used by medical staffs, and good nursing effects can be realized by the urologic clinical urethral catheterization device.

The invention discloses a urethra catheter for expansion of a urethral canal and a manufacturing method thereof. The manufacturing method comprises the following steps of; (1) preparing a urethra catheter; (2) preparing a positioning device; and (3) preparing an expansion device. The invention also discloses a produced manufactured in the above method. The method is simple and can be realized easily, and the cost is low. The urethra catheter has a delicate design and reasonable structure. After the urethra catheter inserted into the urethral canal, the positioning device and the expansion device in a narrow state can be tightly attached to the outer wall of the urethra catheter, the outside diameter of the urethra catheter can be reduced effectively, and pains of patients can be eased; the urethra catheter can be effectively positioned in the bladder by the positioning device to facilitate positioning and expansion operations of the expansion device for a part to be expanded, an intermittent inflation or liquid filling method is adopted during expansion, the urethral canal can be expanded, urethral stricture can be treated, mucosal ischemic necrosis can be avoided, the surgical safety and effectiveness can be improved greatly, and the large-scale promotion and application can be facilitated.