101 results about "Urethral Catheters" patented technology

The invention discloses a catheter with real-time monitoring and alarming functions and a catheter system, and relates to the technical field of medical instruments, the catheter comprises a catheter main tube, a balloon, an interface, a pressure sensor and a flow sensor; the drainage tube, the flushing tube and the balloon tube penetrate through the inner space of the catheter handle; the drainage cavity electromagnetic valve is matched with the drainage tube penetrating through the catheter handle and is arranged on the catheter handle; the flushing cavity electromagnetic valve is matched with the flushing pipe penetrating through the catheter handle and is arranged on the catheter handle; the control module is used for judging the current normal urination or abnormal urination of the catheter according to the internal pressure of the bladder and / or the urine flow rate, and if the urination is judged to be normal, the drainage cavity electromagnetic valve is controlled to keep the drainage channel communicated; if it is judged that urination is abnormal, the abnormal type is determined by analyzing the internal pressure of the bladder and / or the urine flow rate, and processing including alarming is carried out according to the abnormal type.

The utility model discloses a catheter which comprises a connecting tube body, a front-end tube body and a balloon, and the connecting tube body is provided with a first drainage channel and a first inflation channel; the two ends of the front-end tube body are an inserting end and a connecting end respectively, the inserting end is provided with a plug, the connecting end is connected with the connecting tube body, the inserting end is provided with at least one drainage hole, the inserting end is provided with a concave area annularly arranged on the front-end tube body, the concave area is provided with an inflation hole, and the front-end tube body is an integral injection molding component; the sacculus is arranged in the concave area, the peripheral wall of the sacculus is flush with the peripheral wall of the front end tube body, and the sacculus is communicated with the second inflation channel through the inflation hole. A concave area is arranged on the portion, adhering to the balloon, of the front-end tube body, the balloon can be just flush with the tube body, the balloon can be fixed only through mucilage glue, smooth transition is not needed, plugging and punching are completed on the front-end tube body subjected to injection molding, punching and plugging are not needed again, the time-consuming transition, punching and plug adhering procedures are omitted, production efficiency is improved, and cost is reduced.

The application provides a self-pressure relief safety catheter, which comprises a main tube, an insertion tube, an elastic connecting tube and an air bag tube; the main tube has a first lumen, a second lumen and a third lumen inside; the insertion tube has an insertion tube lumen inside and a flow guide hole on the outer wall, which is communicated with the insertion tube lumen; the elastic connecting tube is communicated with the first lumen and the insertion tube lumen; the air bag tube is sleeved outside the elastic connecting tube and connected between the main tube and the insertion tube. In the initial state, the outer wall of the air bag tube is basically flush with the outer walls of the main tube and the insertion tube; after being inserted in place, water is injected into the air bag tube, and the air bag tube is inflated; when the main tube is pulled by mistake, the elastic connecting tube is quickly elongated, the outer diameter of the air bag tube is quickly reduced, and the water inside the air bag tube is quickly overflowed through the flow valve. The self-pressure relief safety catheter can reduce the extrusion of the air bag tube on the urethral mucosa, avoid the occurrence of serious complications such as urethral injury or tearing caused by accidental pulling of the catheter, and improve the safety and reliability of the catheter use.

The utility model discloses an anti-pulling catheter, and belongs to the technical field of medical instruments. Comprising an inner tube, an outer tube arranged outside the inner tube in a sleeving mode and an insertion body fixed to the head end of the inner tube and communicated with the inner tube, the outer tube and the inner tube are connected in a sealed mode to form a partition cavity, a balloon is arranged at the position, located at the partition cavity, of the outer tube, and a liquid injection tube is communicated with the interior of the balloon and penetrates out of the partition cavity; the inner tube comprises an end tube connected with an insertion body and a tail tube in the other direction, the end tube and the tail tube are in sealed communication connection through a connector structure, the connector structure is located in the balloon, and the connector structure is used for breaking connection between the end tube and the tail tube when being subjected to axial tension; when a user pulls the catheter accidentally, the end tube and the tail tube are disconnected at the connector structure, liquid in the balloon can enter the tail tube and be rapidly discharged from the tail tube, the balloon is shrunk, at the moment, the catheter cannot be left in the bladder or pulled out, and damage to the bladder and the urethra is prevented.

The utility model relates to a urethra traction device, and belongs to the technical field of medical instrument structures. The device comprises a traction frame and a fixer, and is characterized in that the traction frame is formed by sequentially and vertically connecting a first telescopic rod, a second telescopic rod and a third telescopic rod, a first pulley is mounted at one end of the first telescopic rod, the other end of the first telescopic rod is vertically connected with one end of the second telescopic rod, and the other end of the second telescopic rod is vertically connected with the third telescopic rod; the top end of the third telescopic rod is provided with a second pulley, the third telescopic rod is fixedly connected with a fixator through a bridge plate, and the side face of the fixator is provided with a third pulley. The postoperative traction device is scientific and reasonable in structure and easy to operate, can provide continuous and stable traction force for the indwelling catheter needing to be pulled after the surgery, achieves the effects of compression hemostasis and infection prevention, can adjust the length of the telescopic rod, is suitable for patients of various body types, can keep warm for the patients and protect privacy, and solves the problems that no available equipment is available for traction after the urinary surgery, and the traction cost is low. And the discomfort of the patient is increased by using gauze.

The application discloses a catheter structure capable of controlling the releasing position of medicine liquid and belongs to the technical field of catheters. The catheter structure comprises a catheter main body, a plurality of medicine-feeding air bags are arranged on the surface of the catheter main body, a plurality of medicine-feeding holes are arranged on the side of the medicine-feeding air bags facing the outside of the human body, a plurality of medicine-feeding channels matched with the number of the medicine-feeding air bags are arranged in the catheter, one end of the medicine-feeding channels is arranged in the end of the catheter main body in a flush manner and is communicated with the outside, the depth of the other end of the medicine-feeding channels in the catheter main body is respectively corresponding to the position of the medicine-feeding air bags, and the other end is respectively communicated with the medicine-feeding air bags, a medicine-feeding hose is arranged at one end of the medicine-feeding channel on the end of the catheter main body, and one end of the medicine-feeding hose is connected with the end of the medicine-feeding channel. The technical scheme is used to solve the problem that it is difficult to realize accurate medicine feeding in the urethra when medicine liquid is injected into the urethra through the catheter in the prior art.

A catheter insertion lubricating device relates to the field of medical instruments and comprises a sterilizing tube and a fixing plate, the fixing plate is arranged at the penetrating-out end of the sterilizing tube, one end of the fixing plate is connected with the sterilizing tube, the sterilizing tube is composed of a first connecting plate and a second connecting plate, and one side of the first connecting plate is hinged to one side of the second connecting plate; the other side of the first connecting plate and the other side of the second connecting plate are fixed through a buckle, and medical sponges for adsorbing a lubricating liquid and an iodophor solution are arranged in the first connecting plate and the second connecting plate; the urethral catheter disinfection device is high in practicability and very convenient to use, the lubricating cavity is formed in the disinfection tube, the surface of the urethral catheter is lubricated, and the pain degree of a patient during insertion is reduced; the disinfection cavity is formed in the disinfection tube, so that the surface of the catheter is disinfected when the catheter is inserted, and the urinary tract infection of a patient caused by bacteria is prevented; by arranging the fixing plate, the disinfection tube is fixed when the catheter is inserted, and medical staff can operate conveniently.

The utility model relates to a catheter with a variable pipe diameter, and belongs to the technical field of medical instruments. Comprising a catheter body internally provided with a urinary catheterization channel. The first sleeve is coaxially connected to the outer part of the catheter main body in a sleeving manner; the elastic anchoring sleeve is coaxially connected to the exterior of the first sleeve in a sleeving mode, and a second annular channel is defined by the elastic anchoring sleeve and the outer wall of the first sleeve; and the pressure release structure is communicated with the second annular channel and is configured to be in an open state or a closed state based on the fluid pressure in the second annular channel. The elastic anchoring sleeve can reliably prevent excessive radial pressure applied to urethral mucosa due to excessive expansion of the elastic anchoring sleeve, so that serious complications such as ischemia, edema, pressure necrosis and even long-term urethrostenosis caused by long-term compression of local tissues are effectively avoided.

The present invention provides a comprehensive catheterization whole-process simulation system, which includes a urethra simulation device, a urethral resistance simulation device, a urination simulation device, a gastric lavage simulation device, and a sensor and measurement system. The urethra simulation device is arranged at the anal position of a human genital model; the urethral resistance simulation device includes a peristaltic pump and an airbag connected to the peristaltic pump. The airbag is arranged at the anal position, and the inflation of the airbag exerts pressure on the urethra simulation device; the urination simulation device includes a water pump, and the water pump is connected to the urethra simulation device; the sensor and measurement system includes a first sensor, a first permanent magnet connected to the first sensor, and a catheter. The catheter is provided with a first permanent magnet; the first sensor collects the magnetic field data of the first permanent magnet, and calculates the insertion depth of the catheter in the urethra simulation device according to the magnetic field data. The present invention can completely present the whole process of comprehensive catheterization, and users can repeatedly practice and learn in a relatively real and integrated environment, improving the training efficiency.

The utility model relates to the technical field of urethral catheters, and discloses a urinary surgery urethral catheter which comprises a urethral catheter body, the top end of the urethral catheter body is connected with an intubation tube, an air bag is arranged at the upper position of the outer ring of the intubation tube, and the top end of the intubation tube is connected with a silica gel plug. An anti-falling belt is arranged at the position, close to the cannula, of the outer ring of the catheter body, medical adhesive tapes are arranged at the positions, close to the two sides, of the top face of the anti-falling belt, protective films adhere to the top ends of the medical adhesive tapes, and a plurality of catheterization holes are formed in the outer ring of the cannula and the outer ring of the silica gel plug. By arranging an anti-falling belt, a medical adhesive tape, an air bag, a silica gel plug and a urine storage pot, the stability of catheterization is improved, the catheter body can be fixed to a proper position on a bed sheet or a sickbed, the probability that the catheter body falls off when a person moves is reduced, automatic replacement is facilitated, urine is prevented from leaking when the urine storage pot is replaced, and the use effect is improved conveniently.

The invention relates to the field of medical apparatus and instruments, and discloses an intelligent flushing and drainage device for transurethral surgery, which comprises a catheter, a urination cavity and a flushing cavity are formed in the catheter, and a placement cavity is formed in the center of the interior of the catheter. A plurality of elastic wires, a supporting assembly used for supporting the elastic wires and a control assembly used for driving the supporting assembly are arranged in the containing cavity, and the elastic wires are in an attached state relative to the supporting assembly. Through cooperation of the supporting assembly, the control assembly, the elastic wires and the like, the supporting assembly and the elastic wires can be firstly driven to move out of the containing cavity, the elastic wires are kept in an attached state, then the elastic wires can be driven to be converted into a bent state from the attached state based on the supporting assembly, and at the moment, the multiple elastic wires can be integrally expanded and shrunk in a cage shape; and blocked blood clots can be effectively cleaned.

The utility model discloses an intermittent urethral catheter, which relates to the technical field of urinary surgery nursing and comprises a urethral catheter body, the top of the urethral catheter body is fixedly connected with a connecting pipe orifice, the top of the connecting pipe orifice is in threaded connection with a connecting component, one side of the urethral catheter body is fixedly connected with a lubricating layer, and the lubricating layer is in threaded connection with the connecting component. The other side of the catheter body is fixedly connected with scale marks, and the catheter body is slidably connected with a controller assembly; through the arrangement of the protective cylinder and the connecting pipe opening, the safe disinfection effect is achieved in the using process, the catheter body can be effectively protected through the protective cylinder, disinfectant fluid is contained in the protective cylinder, the catheter can be effectively stored when not used, and the situation that a patient is infected in the using process is avoided; the catheter can be prevented from being damaged in the storage and use process, the interior of the protection barrel can be kept clean when the protection barrel is not used due to the arrangement of the blocking cover, and the service life of the catheter is prolonged.

The application discloses a urinary catheter for urology, and relates to the technical field of medical devices.The urinary catheter comprises a catheter main body, a urinary lumen, a medicine dropping lumen and a flushing lumen are arranged in the catheter main body; the urinary lumen is used for draining urine in a bladder; the medicine dropping lumen is used for adding medicine; and the flushing lumen is used for flushing the bladder; a connecting pipeline is connected with the catheter main body at a first end; a urinary head, a medicine dropping head and a flushing head are arranged at a second end of the connecting pipeline and are independent of each other; the urinary head is communicated with the urinary lumen; the medicine dropping head is communicated with the medicine dropping lumen; and the flushing head is communicated with the flushing lumen.The urinary catheter can drain urine or perform bladder perfusion treatment, add medicine into a patient's body, improve treatment effect and reduce the risk of complications such as urinary tract infection.

The present invention relates to a composition for inhibiting crystallization and / or biofilm formation on an indwelling catheter. Likewise, the present invention relates to the use of a composition as provided herein for the preparation of a medicament for inhibiting crystallization and / or biofilm formation on an indwelling catheter. The composition applied according to the invention contains trimagnesium citrate and tripotassium citrate, and the application of the composition reduces the risk of catheter blockage, reduces the risk of catheter-related urinary tract infection, reduces the risk of bladder calculus formation, reduces the risk of urethral mucosa injury caused by replacement of the indwelling catheter, and reduces the risk of urinary tract mucosa damage caused by replacement of the indwelling catheter. And allows the catheter to be used over an extended period of time.

The utility model discloses a diameter-adjustable urethral catheter, which belongs to the technical field of medical urethral catheters and comprises a urethral catheter body, the urethral catheter body is made of silica gel and is hollow inside, a liquid outlet is fixedly mounted at the lower end of the urethral catheter body, and an anti-falling component and a diameter adjusting component are fixedly mounted outside the urethral catheter body. The anti-falling assembly is located above the diameter adjusting assembly, the lower end of the liquid outlet is hinged to the anti-backflow assembly, one side of the upper end of the catheter body is provided with a head end side hole, the lower end of the catheter body is provided with scale marks, when the catheter is used, the catheter is prevented from falling off through the anti-falling assembly, and the diameter of the catheter is conveniently adjusted through the diameter adjusting assembly; the device can be suitable for patients with different urethra diameters, and urine in the urine bag is prevented from splashing and flowing back to the catheter through the backflow prevention assembly.

Among hospital–acquired infections, Pseudomonas aeruginosa-associated urinary tract infections (UTIs) are mainly caused by indwelling urethral catheters (catheter-associated UTIs or CAUTIs) and are difficult to treat, resulting in high rates of morbidity among hospitalized patients. While antibiotics can successfully treat bacteria in the bladder lumen, they are inefficient at crossing stratified urothelium plasma membranes to kill persistent intracellular bacterial communities (IBCs). Herein, UTI IBCs are targeted by locally delivering the antibiotic gentamicin and / or the steroid hormone estradiol via polymeric nanogels conjugated with a cell-penetrating peptide Cys-Gly-Lys-Arg-Lys (CGKRK - SEQ ID NO:1). This approach delivered more intracellular gentamicin compared to drug delivered in solution in vitro and more estradiol compared to conventional methods. In an acute UTI murine model, the nanogel cell-penetrating peptide drug delivery system facilitated the transport of gentamicin into the urothelium and resulted in > 90% clearance of a uropathogenic P. aeruginosa clinical strain in vivo.

The distinctive element of the design is the shape of a stylet for an indwelling urethral catheter. The design is rendered in grayscale. The design does not claim protection for any particular color. The dashed line with jagged dots indicates an indefinite length. The area within the dashed line indicates that part of the product does not constitute the design sought to be registered. Figure 2.1 shows a perspective view of a stylet for an indwelling urethral catheter. Figure 2.2 shows its front view. Figure 2.3 shows its back view. Figure 2.4 shows its left side view. Figure 2.5 shows its right side view. Figure 2.6 shows its top view. Figure 2.7 shows its bottom view. 2.1) Perspective view; 2.2) Front view; 2.3) Back view; 2.4) Left side view; 2.5) Right side view; 2.6) Top view; 2.7) Bottom view

According to the intelligent comfortable male catheter device, an inner urination tube is arranged in an inner intubation tube, a fixed air bag is arranged on the front section of the inner intubation tube, a blocking air bag is arranged on the front section of the inner side of the inner urination tube, a catheter communicating opening is formed in the front end of the inner intubation tube and communicated with the inner urination tube, and a medicine injection communicating opening is formed in the portion, at the front end of the catheter communicating opening, of the inner intubation tube; a pressure sensor is arranged at the front end of the inner insertion pipe and electrically connected with the main control mechanism. Through detection of the pressure sensor and intelligent control of the main control mechanism, the urethra can be closed when no urine exists, continuous stimulation to the urethra wall is reduced, when urination is needed is intelligently judged, the urination inner tube is automatically expanded and closed, the device adapts to the physiological state of a patient, manual intervention is reduced, and the medical efficiency is improved; meanwhile, infection and other complications are reduced, the design of a traditional catheter is greatly improved, and the catheter has wide clinical application prospects and market value.

Catheter products including urethral catheters with insertion aids. More specifically, urethral catheters having insertion aids and associated antimicrobial agents.

The urinary catheter (100) is generally configured for self-deployment. The catheter includes a lubricant (108) disposed within the catheter lumen. The catheter further includes a sheath (125) covering the catheter tube, the sheath lumen also containing a lubricant. The catheter includes an engagement member at the proximal end that is selectively transitionable between a closed state and an open state. Various embodiments of a cap (160) defining the engagement member are disclosed. The cap may also be retained in an open position so as to be positioned away from urine exiting the catheter lumen during use.

The utility model belongs to the fixed paste technical field, specifically is a catheter secondary fixed paste, including fixed paste main part, the middle part of fixed paste main part is provided with transparent dressing, both sides of transparent dressing are provided with adhesive plaster, the middle part of transparent dressing front is provided with fixed pad, both sides of fixed pad are provided with bandage. The utility model, through transparent dressing and adhesive plaster paste on the patient's skin, place the catheter on the fixed pad, use the bandage to bundle and fix, place the catheter in the catheter groove, pass through the right side fixed hole through the left side anti -disengagement zone, use magic paste stick part and magic paste stick part to stick, the secondary fixed of catheter, cooperate through adhesive tape, bandage and anti -disengagement zone, can more firmly fixed catheter, prevent its displacement or fall off, and long -term use fixed paste, also can not cause the damage of patient.

The invention belongs to the technical field of biological medicines, and particularly discloses a nano drug-loaded catheter coating material based on TUBA1C gene expression regulation and a preparation method thereof. The coating material is composed of siRNA (small interfering ribonucleic acid) loaded with TUBA1C and PLGA (poly (lactic-co-glycolic acid)) / chitosan nanoparticles loaded with antibacterial peptide GL13K. The sequences of the siRNA are as shown in SEQ ID NO: 1 and SEQ ID NO: 2. Nanoparticles are prepared through a multiple emulsion-solvent evaporation method, and the surface of the catheter is coated with the nanoparticles. The coating provided by the invention can synergistically exert gene silencing and antibacterial effects, and siRNA silences a TUBA1C gene in urethral mucosa cells in a targeted manner and inhibits inflammatory response and fibrosis; the antibacterial peptide GL13K can kill pathogenic bacteria and prevent the formation of biological membranes. The coating material has antibacterial, anti-inflammatory and anti-biofilm functions, can effectively prevent and treat catheter-related urinary tract infection, and reduces the risk of long-term complications such as urethrostenosis.

Disclosed herein are systems, devices, and methods for the removal of objects from the body. The device may be a urethral catheter configured to aspirate kidney stones from the urinary tract through one or more aspiration ports at the distal face or along a lateral side of the catheter. The catheter may include one or more irrigation ports at the distal face or along the lateral side of the catheter for dislodging kidney stones. The device may be steerable. The spatial arrangement of the one or more irrigation ports with respect to the one or more aspiration ports may vary. The device may include an irrigation tube and / or a shield member configured to spatially confine the kidney stones adjacent the catheter. Various temporal patterns of aspiration and irrigation are disclosed for optimizing removal of kidney stones.

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

This invention provides an external fixation device for a balloon catheter used in clinical nursing, belonging to the field of medical devices. It includes a mounting box, with a fixing rod fixedly connected to the inner surface of the mounting box. A buffer assembly is provided on the outer side of the fixing rod. The buffer assembly includes a winding part and a movable part. The winding part includes a movable sleeve rotatably connected to the outer surface of the fixing rod. By setting the buffer assembly, the catheter can be wound and stored by a guide frame, keeping the length of the catheter outside the mounting box within an appropriate range. This effectively reduces the risk of accidental pulling on the catheter. The movement of the guide frame releases the catheter, buffering and absorbing the pulling force on the catheter, thereby effectively reducing the transmission of pulling force to the balloon catheter. This reduces the probability of damage to the patient's bladder and urethra caused by the balloon catheter during accidental patient movement, thus effectively ensuring comfort during the operation of the catheterization device.

The invention discloses a catheter-related urinary tract infection early warning system based on emergency nursing, and relates to the field of medical monitoring, and the system comprises the following steps: analyzing to obtain the current discharge amount of a to-be-analyzed discharge substance of an emergency patient; analyzing to obtain an infection influence coefficient of the to-be-analyzed discharged substance on the emergency patient; acquiring an infection promotion coefficient between the to-be-analyzed excreted substance and other to-be-analyzed excreted substances; forming a to-be-compared urination condition of the current urination condition; calculating an infection contribution value of the urination condition to be compared to the emergency patient; and obtaining a coincidence condition of the to-be-compared urination condition relative to the current urination condition, and performing infection judgment on the current urination condition. According to the method, the infection influence coefficient is obtained through analysis, the infection promotion coefficient is obtained, the urination condition to be compared is formed, the corresponding infection influence is obtained according to the difference of deletion of different to-be-analyzed excretion substances, and the mutual influence condition existing between the different to-be-analyzed excretion substances is also considered, so that the infection prediction result is closer to the reality.

The special urethral catheter for the gynecology department comprises a catheter body, one end of the catheter body is sequentially provided with a catheter head, a urethral catheterization opening is formed in the position of the catheter head, a liquid outlet is formed in the other end of the catheter body, the catheter body comprises a liquid guide pipe and an outer-layer pipe, the liquid outlet and the urethral catheterization opening are communicated with the liquid guide pipe, a movable pipe is arranged between the liquid guide pipe and the outer-layer pipe, and the movable pipe is connected with the outer-layer pipe. One end of the movable tube is fixedly connected with a rotating ring, at least three medicine cavities are distributed in the movable tube in the axial direction of the movable tube, a plurality of inner openings are formed in the surface of the movable tube, the inner openings correspond to the medicine cavities in a one-to-one mode, the inner openings are communicated with the corresponding medicine cavities, the directions of the inner openings are different, and anesthetics are contained in the medicine cavities respectively. And a plurality of communicating ports are sequentially formed in one side of the outer-layer pipe and correspond to the inner openings one to one. The urethral catheter special for the gynecology department adapts to anatomical characteristics of female urethra, the medicine covering length of 4-5 cm accurately acts on urethral mucosa, and whole-course anesthesia is achieved through segmented medicine release of multiple medicine cavities.

The invention discloses a non-body-entering catheter, belongs to the field of medical instruments, and aims at solving the problems that a traditional male body-entering catheter is high in infection risk and depends on professional operation. The condom comprises a condom body, a transition connecting tube, a drainage tube and a urine collecting bag, the condom body is of a flexible sleeve-shaped structure with one end open and the other end closed, and an elastic binding ring is arranged on the edge of the open end to be attached to the root of the penis to prevent leakage. The transition connecting tube comprises a first connecting section and a second connecting section which are sequentially connected and are respectively fixedly and hermetically communicated with the closed end of the condom body and the drainage tube; the drainage tube is a transparent flexible tube; the upper part of the urine collection bag is provided with a plug-in urine collection bag liquid inlet interface which is hermetically connected with the drainage tube; the lower part of the urine collection bag is provided with a one-way urine collection bag liquid discharge valve; the bottom of the urine collection bag is a slope inclined towards the liquid discharge valve; and the top edge of the urine collection bag is provided with a suspension hole. The device does not need to invade the urethra, greatly reduces the infection risk, can be operated by a user autonomously, is low in cost, and is suitable for home nursing and other scenes.

The utility model relates to the technical field of medical equipment, and provides a leakage-proof urethral catheterization device for urinary surgery nursing, which comprises a third urethral catheter, a fixing mechanism and a wrapping mechanism are arranged on the third urethral catheter, and the third urethral catheter is limited and restrained in the bladder of a patient under the cooperation of the fixing mechanism and the wrapping mechanism. A one-way valve mechanism is arranged on one side of the fixing mechanism, a first catheter is arranged between the fixing mechanism and the one-way valve mechanism, a second catheter is arranged at the lower end of the one-way valve mechanism, the end, away from the one-way valve mechanism, of the second catheter is fixedly communicated with a urine storage bag, and the lower end of the urine storage bag is fixedly connected with a discharging port. A first sealing cap is arranged at the end, away from the urine storage bag, of the discharging port. The third catheter is doubly fixed through the fixing mechanism and the wrapping mechanism, and urine leakage is prevented.