218 results about "Intra bladder" patented technology

The invention discloses a progressive dynamic pressure gradient bladder function regulation and control system and method, and aims to solve the problems of high infection rate, bladder injury risk, complicated operation, lack of dynamic pressure regulation and control and the like in the existing bladder management technology. According to the system, the urinary bladder internal pressure, the urine flow rate and the residual urine volume are monitored in real time through the urodynamic monitor, and the pressure gradient is dynamically adjusted according to the health condition of a patient. Progressive pressure training is adopted in the system, the bladder function is gradually enhanced, meanwhile, an emergency adjustment strategy is introduced, and the safety of a patient is ensured. In addition, the system also integrates machine learning and reinforcement learning algorithms, and realizes personalized treatment according to the treatment history and real-time feedback optimization adjustment strategy of the patient. The system has the advantages of precise regulation and control, personalized treatment, improvement of the comfort level of the patient and the like, and the bladder rehabilitation effect of the spinal cord injury patient is remarkably improved.

The invention discloses a bladder irrigation injection pump, and belongs to the technical field of medical equipment. An irrigation bin, a water storage bin and a waste liquid bin are arranged in a machine shell; a regulator capable of controlling the flushing bin to inject flushing liquid into the bladder of the patient and extracting waste liquid is arranged on the flushing bin; one side of the flushing bin is communicated with the water storage bin and the waste liquid bin; a flushing pipeline capable of conveying liquid into the bladder of the patient and extracting the liquid is arranged on the other side of the flushing bin in a communicating mode, and airflow in the upper space and airflow in the lower space in the flushing bin are compressed and switched through a drainage plate; the bladder flushing device can be matched with a plurality of flow stoppers to control and switch blockage of a pipeline so that flushing liquid can be injected into the bladder of a patient, meanwhile, generated waste liquid can be removed, and new flushing liquid can be introduced into the flushing bin while the waste liquid temporarily stored in the flushing bin is discharged, so that follow-up bladder flushing work can be completed conveniently; and potential safety hazards caused by excessive expansion of the bladder of the patient due to instant filling of the flushing fluid can be further avoided.

A urinary catheter includes a catheter tube with a lumen, a proximal end, a distal end and a balloon coupled to the proximal end. The balloon is configured to be positioned in an interior of a bladder. The proximal end is configured to provide flow of urine from the bladder through the catheter lumen bag collects urine from the bladder through the catheter lumen. The drainage bag has an inlet port for receiving urine and an outlet port for draining urine from the drainage bag. The urinary catheter tube includes the proximal end and the proximal end, with a plurality of urine draining holes that receive urine from the bladder and allow it to be transported to and though the urinary catheter tube. One or more sensors included in the urinary catheter and positioned to be in contact with patient's urine. An artificial intelligence engine is coupled to the one or more sensors to receive sensor data, and make recommendations relative to a health of a patient.

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 invention belongs to the technical field of medical irrigators, and particularly relates to a bladder irrigation device with an irrigation fluid heating piece. According to the bladder irrigation device with the irrigation fluid heating piece, the liquid outlet pipe is provided with the buffer bag capable of storing the irrigation waste liquid, so that the irrigation waste liquid guided out of the catheter needs to pass through the buffer bag and then is gathered in the waste liquid container; a fixing piece used for fixing part of the liquid inlet pipe to the surface of the buffer bag is arranged on the surface of the buffer bag, so that heat exchange can be conducted between flushing liquid in the liquid inlet pipe and flushing waste liquid temporarily stored in the buffer bag. The temperature of the waste flushing liquid is fully utilized, the temperature of the heated flushing liquid is adjusted through the temperature, and fluctuation of the temperature of the flushing liquid generated by the environment temperature or temperature deviation caused by not-in-place heating of the flushing liquid heating piece is reduced; the temperature fluctuation of the flushing fluid entering the human body is small and is close to the temperature of the fluid in the bladder. Moreover, when the catheter is blocked, the catheter can be conveniently and quickly dredged.

The invention discloses an intelligent management indwelling catheter system which comprises a catheter body, a pressure sensing module is arranged at the end, inserted into the bladder, of the catheter body, a sensing module is arranged at the urine outlet end of the catheter body, and the pressure sensing module is used for sensing the pressure in the bladder so that the amount of urine in the bladder can be conveniently judged through the pressure; the sensing module is used for measuring the flow speed and flow of urine flowing out of the catheter body; the urinary catheter further comprises a urine bag, the top end of the urine bag is connected with the urine outlet end of the urinary catheter body through a flow guide tube, a monitor is installed on the urine bag, and the monitor is used for monitoring the liquid level of urine in the urine bag and detecting conventional parameters of the urine at the same time. The top end of the monitor is connected with a displayer, and the displayer is connected with the pressure sensing module and the sensing module in a Bluetooth connection mode. The flow and the flow speed of urine flowing out of the catheter can be monitored through the sensing module, and the urine flowing out of the body of a patient can be conveniently obtained in real time.

The invention is suitable for the technical field of urinary surgery, and particularly relates to a bladder pressure control method and system and transurethral surgery operation equipment. Wherein the bladder environment information comprises a bladder environment model and blood vessel distribution information; the bladder pressure is monitored in real time; wherein the bladder pressure reflects the pressure in the bladder in the operation process; obtaining a perfusion speed and a discharge speed based on the bladder pressure; when a pre-operation instruction is received, the perfusion adjustment speed and the discharge adjustment speed are obtained based on the pre-operation instruction and the bladder environment information; wherein the pre-operation instruction is an instruction which is sent by a doctor and is used for controlling a cutting instrument to cut a tumor or a basal wound surface. According to the bladder pressure control method and system and the transurethral surgery operation equipment provided by the embodiment of the invention, the problem that pressure rise in the bladder causes adverse effects on the safety of a patient and postoperative recovery can be solved.

An intelligent interactive neuromodulation system by intravesical and pelvic floor stimulation is provided, including: an electromyography (EMG) acquisition module, an intelligent diagnostic module, a display interaction module, and an electrical stimulation module. The intelligent diagnostic module is configured to receive an original EMG signal acquired by the EMG acquisition module and obtain feature information, generate a first treatment protocol by using the feature information and a preconfigured intelligent fitting model, and generate a classification result of an abnormal bladder activity based on the feature information and a preconfigured intelligent classification model; in response to identifying that a detrusor activity of a patient changes, automatically complete dynamic switching between a first treatment mode and a second treatment mode. The display interaction module is configured to receive a first treatment protocol and a second treatment protocol, and send the first treatment protocol to the electrical stimulation module to apply electrical stimulation pulses.

The invention discloses a retention enema device, and belongs to the technical field of retention enema. Comprising a three-cavity urinary catheter, an air bag device, a medicine treatment device, a speed adjusting device and a sealing cap, wherein the three-cavity urinary catheter is placed in the anus for flushing, urine drainage and medicine conveying; the air bag device is used for preventing urine from flowing out; the medicine treatment device is used for conveying and treating medicine; according to the device, the bladder of a patient can be flushed through the three-cavity urinary catheter, urine in the bladder can be drained and collected, medicine can be conveyed into the bladder in an injection and infusion mode, the medicine can be injected into the rectum or colon through the anus of the patient, and the treatment purpose is achieved through intestinal mucosa absorption; and in the medicine conveying process, the conveying speed of medicine conveying can be correspondingly adjusted according to the use types of the medicine and the treatment condition of the patient, so that the medicine treatment operation of the patient is more convenient.

The application discloses a bladder tumor specimen extractor which comprises an adjusting transmission assembly capable of controlling preliminary cutting, a separating assembly capable of separating a tissue part and a liquid part of the bladder tumor and an operating handle. The application belongs to the technical field of bladder tumor surgery. When the bladder tumor temporarily stays on a tissue liquid passing layer, the removed bladder tumor can be punctured by a plurality of groups of puncture heads, so that the tissue part of the bladder tumor is blocked by the tissue liquid passing layer, and the tissue liquid and the plasma part of the bladder tumor can pass through the tissue liquid passing layer and enter a liquid storage bag. After sampling is completed, medical staff can take out the liquid storage bag to sample the tissue liquid and the plasma part of the bladder tumor, and the tissue part of the bladder tumor can be sampled from the tissue liquid passing layer. The application provides a brand-new bladder tumor sampling experience, greatly reduces the possibility of tissue liquid and plasma remaining in the bladder and brings convenience to medical staff.

The application relates to the technical field of medical devices, and relates to an anti-leakage and anti-blocking urinary catheter and an application method thereof.The urinary catheter comprises a urinary catheter body, a first air bag and a second air bag, the urinary catheter body is provided with a liquid outlet cavity, the liquid outlet cavity is provided with a liquid inlet hole, a flushing and medicine injection pipe is connected to the outer wall of the urinary catheter body, the flushing and medicine injection pipe is connected with a sealing plug, the urinary catheter body is provided with an air inlet cavity, the outer wall of one side of the urinary catheter body is connected with an air inflation pipe, the air inflation pipe is connected with an air inflation interface, the first air bag is connected to the outer periphery of the urinary catheter body, the air inlet cavity is provided with a first air inlet hole, the second air bag is connected to the outer periphery of the urinary catheter body, the second air bag is located on the side, away from the liquid inlet hole, of the first air bag, and the air inlet cavity is provided with a second air inlet hole.The first air bag is inflated to abut against the inner wall of a bladder, so that the urinary catheter is prevented from sliding out, the second air bag is inflated to adhere to the inner wall of a urethra, so that the possibility of urine leakage is reduced, liquid medicine is introduced into the liquid outlet cavity and the bladder through the flushing and medicine injection pipe, so that the possibility of blood clots and sundries blocking the urinary catheter is reduced, and the reliability of the urinary catheter is improved.

The present disclosure relates to a method for generating a learning model, a learned model, a program, and a controller of a bladder endoscope in which the program or the model is recorded. The method including: acquiring, as teaching data, endoscope image data on a Hunner lesion in a bladder; and generating the learning model by using the teaching data such that a bladder endoscope image serves as an input and the position indication of a Hunner lesion in the bladder endoscope image serves as an output. The program causing a computer to perform acquiring endoscope image data on a Hunner lesion in a bladder, inputting a target bladder endoscope image to a learning model in which a bladder endoscope image serves as an input and position-indication data on a Hunner lesion in an endoscope image serves as an output, and outputting the position indication of the Hunner lesion.

The present invention relates to a medical instrument that is an examination instrument for measuring the internal pressure of the bladder that requires no externally connected catheter or externally connected cable. The technical problems addressed by the present invention are that existing conventional urodynamic bladder pressure measuring devices require externally connected catheters and cables, the non-closed-loop structures of existing wireless bladder pressure measuring devices involve the risk of the end heads entering the urethra and becoming dislodged, and the tubular structures uniform in diameter in existing wireless bladder pressure measuring devices fail to balance good flexibility and a large capacity. The present invention provides an annular wireless bladder pressure measuring instrument for measuring the internal pressure of the bladder that requires no externally connected catheter or externally connected cable, can be placed in the bladder, and features good flexibility and a large capacity. The present invention is of an annular structure and is made of an elastic material, so that the present invention can be flattened and elongated under external pressure and automatically springs back into an annular shape when no external pressure is applied. The annular structure comprises a folding section and a loading section; the folding section is relatively thin and can be bent and straightened easily, and the loading section is relatively thick and has a large internal space that can accommodate elements such as a power supply, a circuit board, and a pressure sensor. The bladder pressure measuring instrument can be wirelessly interconnected to other devices. Data from the pressure sensor can be wirelessly transmitted. The operation of the bladder pressure measuring instrument can be regulated wirelessly.

A body fluid movement apparatus includes a body fluid movement apparatus tube with a lumen, a proximal end, a distal end and a balloon coupled to the proximal end. The balloon is configured to be positioned in an interior of a bladder. The proximal end is configured to provide flow of body fluid from the bladder through the lumen, with a draining bag collecting body fluid from the bladder through the lumen. The drainage bag has an inlet port for receiving body fluid and an outlet port for draining body fluid from the drainage bag. The urinary catheter tube includes the proximal end and the proximal end, with a plurality of body fluid draining holes that receive body fluid from the bladder and allow it to be transported to and though the body fluid movement apparatus tube. One or more sensors are positioned in an interior of the catheter tube and are in contact with the patient's urine. The one or more sensors provide sensor data, at least a portion of sensor data being noisy data that contains one or more of errors, outliers, and inconsistencies. Logic resources provide preprocessing of the noisy data to create cleaned sensor data used for one or more of: identification, cleaning, and transforming of noisy data for the machine learning algorithms to produce the cleaned sensor data. An artificial intelligence system coupled to or including an AI database. The AI engine. with a plurality of machine learning algorithms, provide analysis of the cleaned sensor data used for medical monitoring of one or more medical conditions of the patient by the machine learning algorithms, the analysis of the cleaned sensor data being used for the medical monitoring of the patient.

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 invention relates to the technical field of medical instruments, and particularly discloses a bladder function training guide and control system and method based on a multi-modal sensor, and the system comprises an integrated sensing module which monitors the body surface pressure of a bladder area through a pressure sensor array, obtains the geometric parameters of the bladder in combination with an ultrasonic probe, and transmits the parameters to a central processing module; and meanwhile, conductivity data of liquid in the bladder is acquired by using an impedance tomography technology. The bladder parameter inference module is fused with multi-source data to calculate real-time bladder wall tension and limit capacity to construct a personalized tension-capacity model. The urination demand evaluation module calculates a urination demand value based on the real-time tension, the model parameters, and the limit capacity. And the training plan optimization module is used for dynamically adjusting the initial training scheme according to the urination demand of the day. And the training guide and control module is used for executing the optimization plan and monitoring in real time, and triggering an acousto-optic vibration reminding or urethral catheterization device when a required value reaches a threshold value. The system realizes intelligent and personalized guidance and control of bladder function training through multi-modal data fusion and closed-loop control.

A static equilibrium adjusting system includes a bladder (10) and a regulation valve (20). An elastic restoration device (11) is arranged in the bladder (10) to support an external pressing force. The regulation valve (20) is in communication with the bladder (10) to provide an adjustable reverse-resisting force to resist an air pressure generated, in a direction toward the regulation valve (20), by the bladder (10). Through selection of a size of the interior space of the bladder (10) and a density and an elastic property of the elastic restoration device (11), a rebounding force is generated to cooperate with the reverse-resisting force generated by the regulation valve (20) to provide a supporting force to the bladder (10), so that an effect of static equilibrium is achieved among the external pressing force, the bladder (10), and the regulation valve (20).

The utility model relates to the field of medical instruments, in particular to a visual reducing catheter which comprises a catheter body, one end of the catheter body is provided with a urine bag connector, and the other end of the catheter body is provided with a catheterization hole and a balloon used for limiting the catheterization hole in the bladder. A first connecting pipe and a second connecting pipe are arranged on the left side and the right side of the catheter body respectively, and a first charging connector and a second charging connector are arranged at the head of the first connecting pipe; a side air bag is sleeved on the catheter body between the balloon and the roots of the first connecting tube and the second connecting tube, the first inflating nozzle is communicated with the side air bag, and the second inflating nozzle is communicated with the balloon; a visual assembly is arranged on the second connecting pipe and used for monitoring and displaying the air pressure in the side air bag in real time. The catheter not only has a reducing function, but also has the function of monitoring the pressure of the ureter part entering the body of a patient in real time, visualization is achieved, and the pressure can be dynamically adjusted according to the actual requirements of the patient.

The present invention provides methods for treatment of high-risk non-muscle invasive bladder cancer that is unresponsive to BCG therapy by locally administering gemcitabine to the bladder. Also provided herein are kits and articles of manufacture for treating high-risk non-muscle invasive bladder cancer that is unresponsive to BCG.

The utility model discloses a catheter device with a catheter easy to replace. The catheter device comprises a double-cavity catheter body and a catheter replacing guide wire. A first channel and a second channel are arranged inside the double-cavity tube body, a first tube head communicated with the first channel and a second tube head communicated with the second channel are formed at the upper end of the double-cavity tube body, a urination hole communicated to the first channel is formed in the outer wall close to the lower end of the double-cavity tube body, and a guide wire passing hole is formed in the bottom of the double-cavity tube body. The lower part of the outer wall is provided with an air guide hole for communicating the second channel with the inflating balloon; hemispherical soft heads are arranged at the upper end and the lower end of the tube replacement guide wire, and the outer diameter of the soft heads is equal to the outer diameter of the tube replacement guide wire. The double-cavity catheter has the advantages that under the guidance of the catheter replacement guide wire, the lower end of the double-cavity catheter body can be driven to be smoothly pushed into the bladder of a patient through the urethral orifice of the patient, catheter indwelling blocking caused by urethral bending and the like in the catheter indwelling process is not likely to happen, and in other words, the catheter indwelling speed and efficiency of the double-cavity catheter body can be greatly improved by arranging the catheter replacement guide wire.

This application relates to the field of bladder irrigation, and specifically discloses an irrigation device for visual transurethral resection of bladder tumors, which is arranged at one end of a catheter to connect the catheter with the bladder; it includes: a cylinder body with a piston cavity; a storage body with a chamber; a connecting piece fixedly arranged at one end of the catheter; a piston slidably arranged in the piston cavity; a sieving assembly arranged in the chamber to filter tumor tissues; wherein, an endoscope is arranged on the catheter to observe the internal condition of the bladder; the connecting piece has a joint inserted into the catheter nozzle to connect the catheter; the storage body is arranged on the cylinder body and is inserted into the connecting piece together with one end of the cylinder body to form a fixation; a first one-way valve communicating with the chamber and a second one-way valve communicating with the piston cavity are arranged in the connecting piece; a communication port is formed between the opposite parts of the inner wall of the piston cavity and the inner wall of the chamber to communicate the piston cavity and the chamber; the beneficial effect of this application lies in providing an irrigation device for visual transurethral resection of bladder tumors with a sieving function.

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.

A novel improved catheter comprises a catheter body, and a plurality of telescopic frameworks are arranged on the outer wall of the top end of the catheter body in a circumferential array mode. The catheter is made of flexible materials such as medical silica gel, and has good biocompatibility and flexibility. The telescopic framework is arranged at the front end of the catheter, is made of a memory alloy material, has a shape memory function, can change the shape under the action of the pull tube, and recovers the original shape after the acting force of the pull tube is removed. When the urethral catheter is used, the urethral catheter is inserted into the bladder through the urethra, the telescopic framework is in a contracted state in the inserting process, the urethral catheter is more easily inserted and is more attached to the urethra wall, stimulation and damage to the urethra are reduced, after the urethral catheter is inserted in place, the telescopic framework is opened through the pull tube, the telescopic framework can lower the position of a urine inlet of the urethral catheter, and meanwhile the urethral catheter is more convenient to use. The filtering function of the telescopic framework can effectively intercept impurities such as blood clots in urine, the impurities are prevented from entering the catheter, and the smoothness of the catheterization process is guaranteed.

The present invention relates to a medical instrument, which is an examination instrument for measuring pressure within a bladder. The technical problem to be solved by the present invention is that existing traditional urodynamic devices have the issue of requiring external connecting tubes, existing wireless bladder pressure measuring devices have the issue of their own weight compressing the bladder wall, and existing wireless bladder pressure measuring devices in a curled form require straightening the curled shape during placement and removal, which may cause pain. The present invention proposes a wireless, implantable examination instrument for measuring pressure within a bladder, which requires no external catheters or external wires and can be suspended within the bladder. According to the present invention, the instrument is in a multi-segment tubular form, comprising buoyancy tube segments located at both ends and a device tube segment located in the middle, with elastic connection segments between the buoyancy tube segments and the device tube segment. The diameters of the buoyancy tube segments, the elastic connection segments, and the device tube segment are all smaller than the diameter of the urethra, allowing the bladder pressure measuring instrument to be entirely placed into the bladder through the urethra. The interior of the device tube segment can accommodate components such as a power supply, a circuit board, a pressure sensor, and a wireless communication module. The buoyancy tube segments are internally filled with gas or a low-density lightweight material. According to the present invention, the bladder pressure measuring instrument can interconnect wirelessly with other devices, such that the operation and data transmission of the bladder pressure measuring instrument can be regulated and controlled in a wireless mode.

The invention provides a method of treating interstitial cystitis that applies therapeutic exomes to the bladder of a patient through intravesical administration. Unlike the intravesical administration of stem cells, the intravesical administration of exosomes permits a therapeutic amount of paracrine-active growth factors and cytokines to be applied to bladder tissue before they can voided by urination.

The invention relates to the technical field of bladder internal pressure monitoring and management, and provides a neurogenic bladder internal pressure monitoring and management system based on incremental learning, which comprises a data acquisition module, an embedded hardware platform and a user side prompt module. The data acquisition module is responsible for acquiring physiological parameter information such as bladder internal pressure, abdominal pressure and body position angle in real time. The bladder internal pressure prediction module integrated by the embedded hardware platform establishes a pressure-time relationship in a piecewise linear modeling mode, continuously adjusts model parameters by applying an incremental learning algorithm, and generates prediction data in a future time window; and the multi-modal state identification module receives the prediction data and the current multi-source physiological information, performs comprehensive analysis by applying a fuzzy logic reasoning mechanism, identifies and eliminates the influence of instantaneous interference factors, and outputs the grade evaluation of the bladder state. And the user side prompting module executes a grading early warning strategy according to the state grade and sends intervention prompting information of different emergency degrees to the patient.

Provided herein are therapeutic methods for use in treating bladder cancer, the therapeutic methods comprising administration of erdafitinib and drug delivery systems comprising erdafitinib.

The present disclosure generally relates to fluid therapy based on patient data, and associated systems, devices, and methods. Embodiments of the present technology can obtain multiple inputs of urine output volume data from a patient without using an indwelling catheter, determine an accumulated volume of urine output data based on the obtained multiple inputs, and adjust the patient's fluid therapy based on the accumulated volume and / or the obtained multiple inputs. Additionally, or alternatively, embodiments of the present technology can include one or more sensors that measure a volume and / or a change in volume of urine within the patient's bladder to determine a urine output rate of the patient, without using an indwelling catheter. Accordingly, embodiments of the present technology can advantageously manage a fluid therapy for patients that refuse an indwelling catheter.

The invention belongs to medical instruments, and particularly relates to a catheter which comprises a catheter body, a balloon, an imbedding unit and a first control line, the catheter body extends in the axial direction of the catheter body and is provided with a first cavity, and the first cavity is used for draining urine in the bladder; the balloon is installed on the catheter body, can expand and deform in the radial direction of the catheter body and is used for abutting against and being positioned on the bladder neck of the bladder; the imbedding unit is detachably connected to the catheter body and used for driving the catheter body and the balloon to be imbedded into the bladder; the first control line is connected with the catheter body, can penetrate through the imbedding unit and is used for driving the catheter body to be separated from the bladder. Therefore, the wearing comfort of a patient can be improved, the risk of urethritis and mucosal lesion is reduced, the catheter body can be conveniently pulled out, the urination disorder possibly occurring after the catheter is pulled out is prevented, the autonomous urination reflex function of the catheter is protected, and the urination disorder possibly occurring after the catheter is pulled out is effectively prevented.