139 results about "Indwelling catheters" patented technology

The utility model discloses a dialysis catheter connector with a protective sleeve, relates to the technical field of peritoneal dialysis, and solves the problems that in the prior art, a dialysis catheter connector is bound by gauze and is fixed by adhesive tape, so that the dialysis catheter connector is easy to slip, and the operation process is complicated, time-consuming and labor-consuming. The protective sleeve comprises a connector body and a protective sleeve body, the connector body comprises an indwelling tube end connector and an external tube end connector, the end of the indwelling tube end connector and the end of the external tube end connector are communicated with an indwelling catheter and an external catheter respectively, the indwelling tube end connector is detachably connected with the external tube end connector, and the protective sleeve body comprises a silicon rubber sleeve. The silica gel sleeve is arranged on the indwelling tube end connector in a sleeved mode, the end, away from the external tube end connector, of the silica gel sleeve is connected with the indwelling tube end connector in a sealed mode, and the other end of the silica gel sleeve is connected with a sealing assembly, detachably connected with the external tube end connector through the sealing assembly and tightened in a sealed mode. The sealing device is simple to operate, convenient to use, good in sealing performance, stable in connection and beneficial to use.

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.

A system for detecting whether a vascular access has been interrupted in an arrangement in which two catheters or needles are present in a blood vessel, fistula or graft. A fluid line leading to a pump is connected via a first connector to a first indwelling catheter, and a fluid line leading from a pump is connected via a second connector to a second indwelling catheter. Each connector is equipped with an electrode in contact with the lumen of the connector, the electrodes electrically connected to an electronic circuit that measures the impedance or conductivity of fluid between the first connector and second connectors via a fluid path through the blood vessel, fistula or graft. An electronic controller receives the impedance or conductivity data and processes the data to determine whether a vascular access disconnection has occurred. The processing may involve filtering the signal received by the controller, and / or setting provisional flags for a disconnection event that may be cleared if the signal changes before the expiration of a counter.

An instrument delivery device for advancing an instrument into a vascular access device indwelling catheter includes an introducer housing comprising a housing coupler at a distal end thereof and an actuator movably coupled to the introducer housing to move the instrument between a first position where the instrument is disposed within the housing and a second position where a distal end portion of the instrument is disposed distally beyond the introducer housing. A lock of the delivery device secures the introducer housing to the vascular access device, with the lock including a lock coupler that mates with the housing coupler, with the lock coupler positioned about the housing coupler such that the housing coupler is positioned within the lock coupler. The lock also includes a blunt cannula and a pair of arms configured to engage the vascular access device and a fluid seal positioned within a lumen of the lock.

The invention discloses a double-elbow type seminal vesicle supporting indwelling catheter which comprises a base body straight pipe, a head bent pipe, a tail bent pipe and a wire, the head bent pipe is arranged at one end of the base body straight pipe and used for being automatically bent in a seminal vesicle during indwelling, and the tail bent pipe is arranged at the other end of the base body straight pipe. The tail bent pipe is arranged at the other end of the base straight pipe and used for being automatically bent in a prostate small bag in the indwelling period, a through wire penetrating channel is formed among the base straight pipe, the head bent pipe and the tail bent pipe, and the wire can extend out of the body along the urethra from the tail bent pipe in the indwelling period to be pulled. Through the collaborative design of double-end stable fixing and line body pulling simplification, the core problems that an existing seminal vesicle supporting device is unstable in supporting and difficult to pull out are thoroughly solved, a safer and more efficient medical instrument solution is provided for postoperative rehabilitation of a seminal vesicle endoscope operation, and the medical seminal vesicle supporting device has extremely high clinical popularization value.

The invention relates to the technical field of medical apparatus and instruments, in particular to a thoracic catheter rapid fixing device based on rapid clamping, comprising: a medical single-sided patch, on which a yoke plate is detachably mounted; the two sets of first arc-shaped pieces are installed on the yoke plate in a sliding mode, two sets of second arc-shaped pieces are symmetrically and rotationally installed on the first arc-shaped pieces, and the ends, away from the first arc-shaped pieces, of the second arc-shaped pieces are connected through elastic rubber pieces; the traction plate is installed on the yoke plate in a sliding mode, an energy storage part is arranged on the traction plate, and the energy storage part is matched with an elastic assembly arranged on the yoke plate, so that the elastic assembly has an energy storage state and an energy release state; and the pushing structure is connected with the traction plate and the first arc-shaped pieces, the pushing structure can drive the two first arc-shaped pieces to move close to each other when the elastic assembly is in the energy release state, and the portability of the thoracic cavity indwelling catheter during disassembly is improved.

A system for whole blood sampling and separation includes a blood draw device coupled to a catheter assembly, with the blood draw device including a catheter tube, a housing that movably receives the catheter tube, and an advancement member to move the catheter tube between first and second positions, to enable a distal end of the catheter tube to be disposed within or past a distal tip of an indwelling catheter. A blood separation device is attached to the blood draw device to directly receive a blood sample therefrom and comprises a centrifuge-free mechanism configured to separate a plasma or serum sample from the blood sample. A sample collection container is coupled with the separation device and provides a vacuum pressure that draws the blood sample into the separation device, with the separated plasma or serum sample being drawn into the sample collection container.

The utility model discloses a special anti-backflow type tee joint for an artery indwelling catheter, which comprises an adjusting valve, an adjusting valve fixing port, a first infusion port, a second infusion port, a main infusion port, an anti-backflow device and a fixing sleeve, the first infusion opening is formed in one end of the adjusting valve fixing opening and connected to a horizontal through hole in one end of the adjusting valve fixing opening, the second infusion opening is located in one side of the adjusting valve fixing opening and connected to a middle section through hole of the adjusting valve fixing opening, and a horizontal through hole in the other end of the adjusting valve fixing opening is connected with a main infusion opening. The anti-reflux device is connected to the interior of the main infusion opening in the length direction of the main infusion opening, and the fixing sleeve is connected to the main infusion opening in a sliding mode, through the arranged anti-reflux device, liquid medicine leakage and blood reflux are remarkably reduced, and the safety of arterial duct infusion is guaranteed; and the treatment accuracy and efficiency are improved through the specially designed adjusting valve and fixing sleeve.

Hand held and portable disinfection units for use with patients having indwelling catheters or are hospitalized or under care in an intensive care unit.

The invention discloses a hemodialysis daily nursing venous indwelling catheter protecting sleeve in the technical field of indwelling catheters.The hemodialysis daily nursing venous indwelling catheter protecting sleeve comprises a deformable plate, a limiting ring, a replacing mechanism and a fixing mechanism, the replacing mechanism comprises penetrating grooves, the penetrating grooves are symmetrically formed in the deformable plate, and a first circular groove is formed in the deformable plate; a movable rod is movably arranged in the penetrating groove, a first spring is fixedly installed outside the movable rod, the free end of the first spring is installed on the inner wall of the first circular groove, a proper limiting ring is placed in the first circular groove, at the moment, the limiting groove is aligned with the movable rod to press the movable rod, and the movable rod ascends under pressure; at the moment, a limiting ring enters a limiting groove, after the limiting ring is placed, a movable rod enters the limiting groove through the elastic force of a first spring, the limiting ring is fixed through cooperative use of the movable rod and the limiting groove, and the situation that discomfort of a patient and potential health risks are increased due to the fact that the size of the limiting ring cannot be changed is avoided.

The utility model provides an infusion connector which is generally used in cooperation with an indwelling catheter such as an indwelling needle in a blood vessel, and liquid medicine can be infused into the blood vessel and blood or liquid can be extracted through the infusion connector. The infusion connector comprises a separation film, a fastener and a connector base. The separation film comprises a body; a cover cap is arranged at one end of the body, the body is provided with a channel capable of being opened and closed, and an inlet of the channel is formed in the cover cap; an axially-through cavity is formed in the connector base, the separation film is contained in the cavity, and a cap of the separation film is buckled to a first connector at one end of the connector base. The cap is provided with a flange extending into the cavity, and the flange is tightly connected with the connector base through the fastener. According to the infusion connector, the separation membrane is tightly connected to the connector base through the fastener, and therefore the problem that the separation membrane fails and cannot be sealed due to the fact that the separation membrane is brought into the infusion connector in the operation process can be solved.

The utility model relates to the technical field of medical instruments, and particularly discloses a continuous invasive oxyhemoglobin saturation monitoring device and an oxyhemoglobin saturation monitoring system, which comprise a puncture needle, an indwelling cannula component and an oxyhemoglobin saturation detection optical fiber, the indwelling cannula assembly comprises a catheter seat, an indwelling catheter, a leading-in pipe and a liquid inlet pipe; a guide channel is arranged in the catheter seat; the indwelling catheter and the ingress pipe are both communicated with the catheter seat, and the tip of the puncture needle sequentially penetrates through the guide channel and the indwelling catheter; the detection end of the oxyhemoglobin saturation detection optical fiber penetrates through the ingress pipe and is inserted into the indwelling catheter; the guide channel is connected with a first sealing part, and the first sealing part is used for sealing the guide channel; the lead-in pipe is connected with a second sealing part, and the second sealing part is used for sealing the lead-in pipe; the continuous invasive oxyhemoglobin saturation monitoring device can continuously monitor the oxyhemoglobin saturation, provides continuous dynamic data for clinical diagnosis and treatment conveniently, quickly and accurately, and indirectly reduces the economic burden and physiological pain of a patient.

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 present invention provides a pharmacological wearable cardioverter defibrillation system for conducting cough assisted pharmacological cardioverter defibrillation during onset of a sudden arrhythmia. The system comprises a WCD defibrillator worn by the patient, a drug mix contained either in a reservoir / pump or in an inhaler, and a miniature monitor. The drug mix in the reservoir / pump is equipped with a pump for pumping the drug mix via an indwelling catheter to the coronary sinus while the drug mix in the inhaler is inhaled directly to the lungs. When a sudden arrhythmia is detected by a sensing electrode of WCD, the following steps are carried out: prompting the patient to take the drug mix, prompting the patient to start forceful coughing, and delivering electric shock(s) under either one of the two circumstances that the patient is unable to start coughing or the arrhythmia is not terminated.

The utility model relates to a peripheral vein indwelling needle which comprises a puncture needle assembly and an indwelling needle seat, the indwelling needle seat is of a tubular structure with two open ends, a sealing plug is installed in one end of the indwelling needle seat, the other end of the indwelling needle seat is fixedly communicated with an indwelling catheter, and the puncture needle assembly comprises a puncture needle seat. The puncture needle seat is located outside the end, away from the indwelling catheter, of the indwelling needle seat and is of a transparent tubular structure, one end of the puncture needle seat is open and provided with a detachable sealing cap, the other end of the puncture needle seat is closed, and a blood return cavity is formed between the other end of the puncture needle seat and the sealing cap. The closed end of the puncture needle base is fixedly connected with a puncture needle communicated with the interior of the blood return cavity, one end of the puncture needle is a tip end, the tip end of the puncture needle sequentially penetrates through the sealing plug and the indwelling catheter and then is located outside the indwelling catheter, and the puncture needle is in sliding connection with the sealing plug and the indwelling catheter. According to the indwelling needle, the time for medical staff to judge whether the indwelling needle is punctured into the venous blood tube of a patient or not can be shortened, so that the working efficiency of the medical staff is improved.

The invention relates to the technical field of medical equipment, in particular to an indwelling catheterization monitoring device and an application method thereof. The device comprises a catheter and a urine pressure monitoring assembly, the catheter comprises an in-vivo section and an in-vitro section, the in-vivo section comprises a catheterization channel, an injection channel and a pressure measuring channel which are mutually independent, and the in-vitro section comprises a catheterization connecting pipe, an injection connecting pipe and a pressure measuring connecting pipe which are mutually independent; one end of the catheterization channel is hermetically connected with the catheterization connecting pipe, and the other end is positioned inside the bladder of a patient during use; one end of the injection channel is connected with a balloon, and the other end is hermetically connected with the injection adapter; the pressure measuring channel is used for transmitting pressure information in the bladder of the patient; the urine pressure monitoring assembly comprises a pressure sensor and a first processor, and the pressure sensor is used for detecting the urine pressure value of a patient. The device can monitor the urine pressure value in the bladder of a patient in real time, a urine pressure value change curve is formed in combination with time, the autonomous urination capacity recovery condition of the patient can be analyzed, and then the removal time of the indwelling catheter can be determined conveniently.

The present application belongs to the field of medical material surface functionalization, and particularly relates to a kind of nano drug-loaded hydrogel catheter coating and its preparation method and application.The present application utilizes PLGA to load antibiotic amikacin sulfate AMK or antibacterial peptide FK13-a1, synthesizes nanoparticle NP-AM and nanoparticle NP-FK, prepares NP-AM / FK@OMV nanoparticle complex with EcN OMV as carrier, then adds poloxamer-hyaluronic acid composite hydrogel to obtain NP-AM / FK@OMV-P / H nano drug-loaded hydrogel, and forms coating after coating and drying.The nano drug-loaded hydrogel coating provided by the present application has the characteristics of enzyme response, antibacterial, prevention of biofilm formation and low toxicity, has great application potential in inhibiting medical catheter surface biofilm, and has important significance for preventing and treating CAUTI, prolonging the use time of indwelling catheter, and reducing the discomfort of patients caused by frequent replacement of catheter.

The invention provides a risk assessment prevention and control system for an indwelling pipeline. The risk assessment prevention and control system comprises an information acquisition terminal, a risk assessment terminal, a nursing plan terminal, a registration terminal and a control terminal, the information acquisition terminal is used for acquiring patient information and nurse information in a ward; the risk assessment terminal is used for performing risk assessment on the indwelling catheter according to the patient information and the nurse information to generate risk assessment information; the nursing plan terminal is used for generating corresponding nursing plan information according to the risk assessment information; the registration terminal is used for a nurse to perform nursing registration according to the corresponding nursing plan information to generate registration information; the control terminal is used for generating permission information according to the registration information, and the permission information is used for being transmitted to a medicine opening system in the ward so as to unlock the medicine opening system. The indwelling catheter has the effect of reducing the infection risk of the indwelling catheter of the patient.

The utility model provides a blood sampling device based on a central venous indwelling catheter. According to the blood sampling device, when the blood sampling device leaves a factory, the first end of the three-way connector and the first nipple in the needle cylinder of the first injector form an integrally-formed sealed whole body and cannot be detached; in the process of extracting the mixture by using the first injector before the central venous blood of the patient is extracted by using the second injector, and in the process of injecting the mixture in the first injector into the central vein of the patient through the central vein indwelling catheter after the central venous blood of the patient is extracted by using the second injector; the first injector is not pulled out from the first port, a first nipple of a needle cylinder in the first injector is always isolated from the outside and not exposed to the outside, and the first end of the three-way connector is always isolated from the outside and not exposed to the outside, so that external pollutants can be prevented from being injected into the central vein of a patient, and the patient can be prevented from being polluted. And health and safety threats to patients can be avoided.

The invention belongs to the technical field of medical teaching information, and particularly relates to an umbilical cord model umbilical vein indwelling catheter module improvement system and method based on a novel biomimetic material. The system focuses on clinical training requirements of umbilical vein catheterization in newborn intensive care, and overcomes core defects of a traditional training model in material bionic degree, operation feedback precision and durability by innovating a bionic material formula, optimizing a catheterization channel structure and designing a multi-dimensional sensing feedback and evaluation algorithm. A practical operation training solution with real operation hand feeling, accurate quantitative evaluation and high reusability is provided for medical teaching, and the system is suitable for skill training in scenes such as medical colleges and hospital neonatology departments.

The utility model discloses a hemodialysis neck vein indwelling catheter fixing band which comprises a neck bandage, a catheter fixing assembly is arranged on the surface of the neck bandage, the catheter fixing assembly comprises a fixing block, the fixing block is fixedly arranged on the surface of the neck bandage, a groove is formed in the fixing block, and the fixing block is fixedly connected with the neck bandage. Two binding belts are arranged on the fixing block, the other ends of the two binding belts stretch across the groove and are provided with connecting blocks, and two indwelling catheter tail end fixing bags are arranged on the portions, located on the two sides of the catheter fixing assembly, of the surface of the neck binding belt. The indwelling catheter is arranged in the groove in the fixing block, the other ends of the two binding belts stretch across the indwelling catheter, the adhesive belts on the inner surfaces of the two binding belts are tightly attached to the indwelling catheter, the adhesive layers on the bottom end faces of the two connecting blocks are bonded with the fixing block, and the indwelling catheter is bound through the two binding belts. The indwelling catheter is limited through the adhesive tape, so that the indwelling catheter can be effectively prevented from falling off or bending.

The application discloses a double-bend type seminal vesicle support indwelling catheter, which comprises a base straight pipe, a head curved pipe, a tail curved pipe and a guide wire, the head curved pipe is arranged at one end of the base straight pipe and is used for automatically bending in the seminal vesicle during indwelling, the tail curved pipe is arranged at the other end of the base straight pipe and is used for automatically bending in the prostate small vesicle during indwelling, a through wire channel is arranged between the base straight pipe, the head curved pipe and the tail curved pipe, the guide wire can extend from the tail curved pipe to the outside of the body along the urethra during indwelling, and the guide wire is used for traction, the double-end stable fixation and the simplified cooperative design of the wire body pulling-out can solve the core problems of the instability of the existing seminal vesicle support equipment and the difficulty of pulling-out, a safer and more efficient medical instrument solution is provided for postoperative rehabilitation of the seminal vesiculoscope surgery, and the application has a high clinical popularization value.

The utility model provides a multipurpose blood sampling assembly which comprises an injector, a three-way valve, an inspection test tube inserting piece, a puncture blood sampling piece and an indwelling catheter blood sampling piece, a first connecting end of the three-way valve is detachably connected with a nipple of the injector, and a second connecting end of the three-way valve is detachably connected with the indwelling catheter blood sampling piece. The indwelling catheter blood sampling piece is detachably connected with the puncture blood sampling piece, the third connecting end of the three-way valve is detachably connected with the inspection test tube insertion piece, and the inspection test tube insertion piece is detachably connected with an external inspection test tube. According to the multipurpose blood sampling assembly, blood sampling through the indwelling catheter end can be achieved while blood sampling through a skin puncture blood vessel is achieved, communication between every two channels of the three-way valve is achieved by adjusting the three-way valve, and then corresponding front section blood collection and test blood collection and storage are achieved; the catheter is prevented from being repeatedly disassembled and connected in the blood sampling process, and the blood sampling convenience and safety are improved.

A dialysis system with motor driven pressure estimation of fluid within a patient line is disclosed. A peritoneal dialysis ("PD") system includes a fluid pump and a patient line fluidly coupling the fluid pump to an indwelling catheter leading into a peritoneal cavity of a patient. The PD system also includes a motor driver that controls a motor of the fluid pump and transmits an output signal indicative of a load on the motor. The PD system also includes a machine learning algorithm that correlates data related to the output signal from the motor drive with a known fluid pressure within the patient line. A processor of the PD system transmits an input signal to activate the motor driver, receives an output signal from the motor driver, and estimates fluid pressure within the patient line by applying data from the received output signal to a machine learning algorithm.

An indwelling pleural catheter system comprises an indwelling catheter device (2) comprising a catheter tube (7) with a fenestrated distal end (7A) configured to reside in the pleural cavity of a subject and a connection hub (10) fluidically coupled to a proximal end (7B) of the catheter tube, a skin anchoring member (3) to anchor the connection hub (10) to the skin of the subject, and optionally a detachable ambulatory suction module (4) configured for detachable attachment to the connection hub (10). The suction module (4) comprises a fluid inlet (19) configured for fluidic coupling to the catheter tube (7) through the connection hub (10) and a fluid outlet (20) configured for detachable fluidic coupling to a pleural fluid drainage system (5) to drain pleural fluid through the detachable ambulatory suction module. The detachable ambulatory suction module is configured to exert a negative pressure in the catheter tube upon detachment of the pleural fluid drainage system from the suction module. Treatment of pleural effusion using the system of the invention is described. An indwelling catheter system for draining fluid from the peritoneal cavity, and methods of treating ascites, is also described.

An indwelling catheter configured to be indwelled in a living body lumen includes: a shaft including a lumen. An outer diameter of the shaft is 2.5 mm or less. An initial elasticity of the indwelling catheter in warm water at 37° C. is 0.012 N / mm to 0.13 N / mm. A shape restoring rate of the indwelling catheter in warm water at 37° C. is 73% or more. A sliding resistance of the indwelling catheter in physiological saline at 23° C. is 0.025 N or less.

The utility model relates to the technical field of medical dressings, in particular to an ultra-thin foam pocket type visible fixed dressing which comprises a dressing body, a pocket is arranged on the front end face of the dressing body, a first hook-and-loop fastener rough surface located above the pocket is arranged on the front end face of the dressing body, and a second hook-and-loop fastener rough surface located above the pocket is arranged on the first hook-and-loop fastener rough surface. A first hook-and-loop fastener hook face and a second hook-and-loop fastener hook face are arranged on the left side and the right side of the front end face of the first hook-and-loop fastener loop face respectively, a bonding layer is arranged on the edge of the rear end face of the dressing body, and the dressing body can be fixed to the body of a patient through cooperation of the bandage, the third hook-and-loop fastener loop face, the third hook-and-loop fastener hook face and the bonding layer. The indwelling catheter can be fixed through the first hook-and-loop fastener rough surface, the first hook-and-loop fastener hook surface and the second hook-and-loop fastener hook surface, the transparent pocket is arranged on the dressing body, the indwelling catheter connector can be protected conveniently, the indwelling catheter condition can be observed conveniently, the indwelling catheter connector is prevented from being polluted, meanwhile, the indwelling catheter connector can be isolated from the skin of a patient, and the indwelling catheter connector is prevented from being damaged. The pressure injury to the skin is prevented.

The utility model provides a waterproof protective film for a venous indwelling catheter, which comprises a waterproof protective film, a waterproof bonding piece, a dustproof piece and a tearing piece, the size of the waterproof protective film is larger than the overall size of a fixed application and the catheter, and both sides of the waterproof protective film are not sticky; the waterproof bonding piece is arranged on the face, close to the skin of the patient, of the waterproof protection film and arranged on the peripheral side edge of the waterproof protection film in a surrounding mode. The dustproof part is arranged on the face, away from the waterproof protective film, of the waterproof bonding part, covers the waterproof bonding part and is detachably connected with the waterproof bonding part; the tearing part is arranged on the face, away from the waterproof bonding part, of the waterproof protective film, the tearing part is arranged at one end, in the length direction, of the waterproof protective film, one end of the tearing part is fixed to the waterproof protective film, and the other end of the tearing part is separated from the waterproof protective film. According to the technical scheme, the risks that the fixing application is stained with water, and the catheter falls off and even is infected can be reduced, and the comfort and compliance of a catheter indwelling patient are improved.

This invention discloses a multi-compartment disinfection and docking device for hemodialysis catheters, comprising a capsule; the capsule is provided with several connecting tubes for docking with a dialysis machine; the capsule contains a first disinfection compartment for disinfecting old heparin caps, a removal compartment for removing old heparin caps, a second disinfection compartment for disinfecting the indwelling catheter interface, and a docking compartment for docking with the connecting tubes; both the first and second disinfection compartments are equipped with sterilizers for disinfection. This invention integrates the nursing work during dialysis treatment from the original multi-step, scattered actions into a continuous operation within the capsule. Simply insert the indwelling catheter into the capsule and proceed sequentially through the first disinfection compartment, removal compartment, second disinfection compartment, and docking compartment. Disinfection, cap removal, re-disinfection, and docking can be completed within the capsule by rubbing it; this simplifies the operation, avoids bacterial infection and contact contamination, and ensures the convenience and safety of hemodialysis nursing work.