146 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 utility model discloses an anti-infection antibacterial catheter which comprises an antibacterial catheter body, a urination catheter hole vertically penetrates through the interior of the antibacterial catheter body, the upper end of the urination catheter hole is communicated with a connector, an air bag is arranged outside the lower side of the antibacterial catheter body, and an inflation and deflation pipe hole is formed in the left side of the interior of the antibacterial catheter body. The upper end of the flushing exhaust pipe hole is communicated with a flushing exhaust valve head, the flushing exhaust valve head is fixedly connected to the upper side of the left end of the antibacterial pipe body, the left side of the flushing exhaust pipe hole is provided with an emergency exhaust pipe hole, the upper end of the emergency exhaust pipe hole is communicated with an exhaust pipe opening, and the connector is fixedly connected to the top end of the antibacterial pipe body. An emergency exhaust pipe hole and a plugging film are designed, when accidental external tension is encountered, an emergency exhaust mechanism of the air bag can respond rapidly, secondary injury to the urethra of a patient is avoided, the safety protection function of the product is enhanced, the antibacterial pipe body is made of Parx antibacterial materials, bacterium breeding is effectively reduced, and the infection risk is reduced.

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 utility model discloses a catheter for bladder perfusion chemotherapy. The catheter comprises a pipeline, a liquid outlet is formed in the end of the pipeline, the side end of the liquid outlet is in threaded connection with a mounting cap through a connecting assembly, an injector is arranged at the side end of the mounting cap, and liquid in the pipeline is sucked through the injector; a connector is fixed to the side end of the mounting cap and connected with a protective cover. According to the catheter for bladder perfusion chemotherapy, the installation cap is matched with the connecting assembly to be connected with the liquid outlet, the threads on the outer side of the installation cap are used for connection, so that the overall connection is stable, the risk of medicine overflow is reduced, injected liquid is sucked out through an injector at the side end of the installation cap, and the overall operation is convenient and fast; the treatment time is shortened, the comfort degree of a patient is improved, a drainage bag is not needed for drainage operation, the treatment cost is reduced, and the overall use safety is improved.

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 utility model discloses a sterile enemator with a catheter, which comprises a sterile enema bag and a connector which are in transmission connection, and the bottom of the connector is connected with the sterile catheter through a connecting channel. According to the application, the opening of the sterile enema bag is connected with the connector, the connecting channel of the connector is connected with the sterile catheter, the front section of the sterile catheter is inserted into the far end of the enterostomy, the covering layer is torn off, and the base layer is adhered to the outer side of the hip of a patient through the adhesive layer, so that the first layer of the head of the sterile catheter is positioned; normal saline is injected into the air bag through the air bag control channel, the catheter is clamped in the body of a patient through the air bag, so that the second layer of the sterile catheter is positioned, then an enemator switch can be turned on for enema of the patient, and on the basis that an enema mechanism is reserved, the base layer is matched with the air bag; and the stability of the combination state of the head of the sterile catheter is ensured.

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.

Disclosed herein is a urinary catheter generally configured for self-expanding. The catheter includes a closed volume within a lumen of the catheter that contains a lubricant. The proximal and distal ends of the catheter tube are coupled with a manipulation member disposed along the catheter tube to define a compact package shape of the catheter tube that includes one or more loops. The closed volume is breached by simultaneously applying a separation force to the proximal and distal ends to separate the proximal and distal ends from the manipulation member in a single step. The manipulation member includes a pull ring for applying opposing separation forces to the manipulation member. The catheter includes an entrance section configured to be inserted into a patient. An entrance collar is slidably coupled to the entrance section and serves as a guide during insertion of the catheter.

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.

The utility model discloses a portable urethral catheter assembly, which relates to the technical field of medical instruments and comprises a rectangular bag body, an easy-to-tear opening is reserved on the bag body in a hot-pressing sealing manner, a partition is formed at a longitudinal quarter of the bag body in a hot-pressing manner, a urethral catheter and a disposable lubricating tube are arranged in a portable urethral catheter bag, and the disposable lubricating tube is composed of a tube body, a sealing cap and a sealing cover. The catheter is composed of a catheter packaging bag, a disposable lubricating tube, a sealing tinfoil and sterilized paraffin oil, the diameter of the lubricating tube is 1cm, the length of a tube body is 20cm, the paraffin oil filled in the lubricating tube is 20ml, and after the catheter is immersed, the front end of the catheter can be lubricated within the range of 15cm along with the extrusion of the paraffin oil in the tube by the catheter and the rising of the liquid level. The catheter lubricating device has the effects of saving raw materials and simplifying operation steps, when the catheter lubricating device is used, the catheter only needs to be placed in the lubricating pipe, the catheter is fully lubricated in a short time, the comfort of a patient is improved, and secondary pollution of the catheter can be avoided due to the design of the disposable lubricating pipe.

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 utility model discloses a catheter joint for bladder irrigation convenient for manual irrigation, particularly relates to the technical field of medical instruments, and comprises a connector, a liquid outlet pipe and a water injection valve pipe which are arranged at the connector, an irrigation medicine injection pipe which is communicated and connected with the water injection valve pipe, and an irrigator which is connected with the water injection valve pipe, the tail end of the water injection valve pipe is provided with a water injection opening connected with the water injection end of the perfusion device in an inserted mode, and the inner wall, close to the water injection opening, of the water injection valve pipe is fixedly connected with a baffle ring. The cleaning device has the advantages that after the water injection end of the perfusion device is inserted into the inner side of the water injection opening, the sealing ball used for blocking the water injection opening is jacked open, the spring is compressed and deformed in cooperation with the baffle ring, the piston end of the perfusion device is pushed, cleaning liquid is pushed to the inner side of the water injection valve pipe, and then the perfusion device is taken down; under the elastic acting force of the spring, the guide block is matched with the guide groove to slide, and the sealing ball is used for blocking the water filling nozzle, so that manual flushing is very convenient.

The utility model relates to the technical field of medical instruments, in particular to a catheter capable of measuring pressure of an air bag, a first branch tube is arranged on one side of a liquid injection tube, a pressure measuring device is connected to one end, away from the liquid injection tube, of the first branch tube, a sliding block is slidably mounted in the pressure measuring tube in the length direction of the pressure measuring tube, and a first telescopic tube is connected between a first plugging block and the sliding block; a liquid through hole communicated with an inner cavity of the first telescopic pipe is formed in the first plugging block, one end of the first branch pipe is connected with the liquid through hole, and a spring used for pushing the sliding block to move in the direction close to the liquid through hole is arranged in the pressure measuring pipe; as the pressure in the air bag rises, more liquid gradually enters the first telescopic pipe, then the first telescopic pipe stretches and drives the sliding block to move downwards in the pressure measuring pipe, and medical staff can visually know the pressure in the air bag by observing the distance of the sliding block moving downwards in the pressure measuring pipe.