118 results about "Catheters dialysis" 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.

Systems and methods for infection prevention and treatment in biological conduits using electroporation or pulsed field ablation (PFA). The system includes an elongate member, such as a dialysis catheter, vascular access device, or peritoneal dialysis conduit, with at least one electrode positioned along, within, or around the member. A control unit applies pulsed electric fields to inhibit microbial colonization, disrupt bacterial biofilms, and alter permeability of bacterial or endothelial cells to enhance sterility or fluid exchange. The system may use real-time impedance monitoring, microbial detection, or fluid composition analysis to adjust electroporation parameters. Electroporation may synchronize with dialysis cycles or antimicrobial lock solutions. The method includes automated, clinician-controlled, or sensor-triggered treatments to reduce infections and improve device longevity. The system provides an alternative or augment to antibiotics, reducing the risk of drug-resistant infections while improving the longevity and safety of medical implants.

An antithrombotic surface-modified biomaterial is provided comprising a biomaterial substrate coated with a polymerizable dopamine-containing bioadhesive to which is attached one or more antithrombotic agents. A method of preparing the surface-modified biomaterial is also provided. The surface-modified biomaterial is beneficial for use in blood-contacting medical devices such as catheters, dialyzers and blood oxygenators to prevent or minimize the occurrence of thrombosis on the surface thereof.

A multifunctional auxiliary device for in-situ dialysis catheter replacement. A guide wire sequentially passes through a puncture tube. As the sharp end of the puncture tube pierces through a blocking membrane, it passes through a guiding catheter, passes through a dialysis catheter connected to a connecting tube along the guiding catheter, and penetrates into the human body along the dialysis catheter. Compared with the prior art, the present invention has the following advantages: during the replacement of a hemodialysis catheter, when the guide wire enters the blood vessel, the blood leakage along the gaps between the guide wire and the catheter lumen in the catheter is significantly reduced; it avoids serious complications such as air embolism caused by air entering the body along the guide wire; it reduces the contact with the original catheter during the operation, making the sterile area in the operation process cleaner and reducing the infection incidence rate. The operator can also complete the operation calmly, relatively improving the safety of the newly placed catheter and the effect of the new catheter. In addition, the injection connecting tube connected to a syringe can be used for angiography through a side hole to distinguish the reasons for the poor function of the original catheter, evaluate the local vascular conditions, and help to propose a better catheter treatment plan.

The utility model relates to the technical field of medical instruments, and discloses a waterproof bag for a dialysis catheter patient, which comprises a bottom bag, a corrugated waterproof bag is arranged at the top of the bottom bag, a sticking structure for fixing the position of the corrugated waterproof bag is arranged on the outer side of the corrugated waterproof bag, and a waterproof structure for preventing water is arranged at the top of the corrugated waterproof bag. When the waterproof bag is used, a user can stretch the corrugated part on the corrugated waterproof bag to adjust the length of the waterproof bag, then the catheter penetrates through the through hole and then is put into the corrugated waterproof bag, then the catheter patch is attached to the connecting position of the catheter and the body, the water retaining soft piece is turned over to cover the top opening of the corrugated waterproof bag, and then the waterproof bag is put into the waterproof bag. At the moment, the catheter in the waterproof bag can be subjected to waterproof protection, then the corrugated waterproof bag can be well fixed to the body of the patient through the rubber soft rope, the fixing application and the rubber suction cup, the length of the waterproof bag can be adjusted, and the catheter can be subjected to waterproof protection.

The utility model relates to the technical field of catheter fixation, in particular to a temporary dialysis catheter fixator which comprises a first hard sheet, a second hard sheet, a base band, a first adhesive patch and a second adhesive patch. According to the utility model, the S-shaped folded adhesive patches (namely the first adhesive patch and the second adhesive patch) are arranged, so that the adhesive patch can be attached to the skin of a patient, the first hard piece and the second hard piece, and the catheter to be fixed, and the adhesive tape is saved; moreover, due to the structural arrangement of the adhesive tape, only one surface of the adhesive tape is a bonding surface when the adhesive tape is unfolded, and compared with a double-sided adhesive tape, the adhesive tape adopted by the adhesive tape is lower in cost and easier to manufacture.

The utility model discloses a hemodialysis catheter device with multiple connectors. The hemodialysis catheter device comprises a catheter and a conversion connector communicated with the catheter. The adapter can be a single-cavity interface, a double-cavity interface and a multi-cavity interface; the fixed wing is arranged on the adapter and is used for limiting and fixing the catheter; each connector assembly can be connected with a single-cavity connector, a double-cavity connector and a multi-cavity connector. Each connector assembly comprises a first outer extension tube, an ID identification piece and a catheter clamp, wherein the end, away from the conversion connector, of each first outer extension tube is connected with a Luer connector, and the ID identification piece and the catheter clamp are arranged on the first outer extension tube. Through the combination of the catheter and the adapter and the multi-cavity design of the adapter, different numbers of multi-connector dialysis catheter devices can be formed, and the functionality and practicability of the multi-connector dialysis catheter devices are improved.

The utility model relates to the technical field of dialysis catheters for the nephrology department, in particular to a dialysis catheter for the nephrology department. The dialysis head is arranged at the right end of the hose; the connecting pipe is arranged at the left end of the hose; the adjusting sleeve is mounted on the hose in a sliding manner; the sliding groove is formed in the adjusting sleeve; the sliding block is mounted in the sliding groove in a sliding manner; and the adjusting assembly is arranged in the sliding block, and the adjusting assembly is used for adjusting the position of the sliding block in the sliding groove. In the use process, the dialysis head and the connecting pipe are connected with the hose through the threads, so that the dialysis head and the connecting pipe can be conveniently detached and cleaned subsequently; and the device is provided with an adjusting sleeve, so that the drainage rate can be controlled, and the practicability of the device is greatly improved.

The present disclosure provides a catheter system including a plurality of fenestrations along the shaft of the catheter, wherein the fenestrations allow for continuous or intermittent infusion of antiseptics and / or antibiotics to avoid and treat bacterial colonization or infection of the subcutaneous tract and to minimize subcutaneous tunnel colonization and fibrin sheath in symptomatic or asymptomatic patients. The present catheter system can also include a removable abrasive component on the catheters tip to assist with mechanical debridement of subcutaneous tract and intravascular fibrin sheath.

The invention belongs to the technical field of medical instruments, and discloses a peritoneal dialysis catheter sealing connector which comprises a shell and further comprises a limiting assembly movably connected to the interior of the shell and a rotating assembly movably connected to the middle of the outer wall of the shell. Through cooperation of a rotating cylinder, arc grooves, arc-shaped plates, a guide groove and other structures, the catheter and the connector can be conveniently connected, after the arc-shaped plates move by a certain distance, round rods can be driven to slide into inclined grooves of the guide groove, and therefore the arc-shaped plates drive gaskets at the two ends of a shell to abut against the outer walls of a dialysis catheter and a dialysis bag catheter respectively, and the catheter is conveniently connected with the connector. Further, the gasket can drive the dialysis catheter and the dialysis bag catheter to move oppositely after continuously moving, so that gaps between the dialysis catheter and the dialysis bag catheter and the inner wall of the shell can be reduced while the positions of the dialysis catheter and the dialysis bag catheter in the shell are fixed, and the overall sealing performance is improved.

The invention provides a dialysis catheter based on a swirl flow technology, and relates to the field of dialysis catheters.The dialysis catheter comprises a connecting mechanism, the connecting mechanism comprises a connecting block, a vein connecting pipe and an artery connecting pipe, and a catheter mechanism is arranged at the bottom of the connecting mechanism; the catheter mechanism comprises a venous catheter, a venous side hole, an arterial catheter, an arterial side hole and a spiral flow induction unit, the inner wall and the outer wall of the catheter mechanism are each provided with a nano-coating mechanism, and each nano-coating mechanism comprises a copper nano-particle coating and a black phosphorus nano-coating. By arranging the spiral flow inducer, blood pressure is rotated, the wall surface shear stress of the inner wall of an artery cavity is improved, the risk of thrombus generation is reduced, wall suction is effectively prevented by arranging the vein side hole and the artery side hole, and the thrombus generation risk is reduced. Through cooperation of the copper nanoparticle coating, the black phosphorus nano coating and the graphene oxide coating, the coating has multiple antibacterial mechanisms such as contact sterilization, ion interference, oxidative stress induction and the like.

The utility model relates to the technical field of dialysis tools, in particular to a peritoneal dialysis bellyband with a back cushion, which comprises the back cushion, two sides of the back cushion are detachably connected with bellyband bodies, two sides of the front side of each bellyband body are provided with pipeline channels, the middle of the front side of each bellyband body is provided with a pipeline penetrating-out component, and positioning components are arranged outside two sides of each pipeline penetrating-out component. The back cushion comprises a supporting back plate, the two sides of the supporting back plate are connected with supporting side plates, and the dialysis catheter penetrates through the pipeline channel, penetrates out of the pipeline penetrating-out component and is connected with an external drainage pipeline. According to the bellyband with the back cushion for peritoneal dialysis, the back cushion is designed to provide stable back and waist support for a patient, discomfort in the long-time dialysis process is effectively relieved, and therefore the dialysis experience of the patient is improved. Secondly, the pipeline channel and the pipeline penetrating-out component on the bellyband provide an ordered path for the dialysis catheter, smooth penetrating of the catheter is ensured, and risks of displacement, distortion or compression of the catheter are reduced.

The invention relates to a guide wire for a peritoneal dialysis indwelling catheter and an indwelling catheter device, and belongs to the technical field of medical instruments. In order to reduce the probability that the guide wire scratches or punctures the peritoneum, the intestinal tract or the blood vessel in the peritoneal dialysis indwelling catheter operation, improve the operation safety and reduce the operation difficulty, the invention provides the guide wire for the peritoneal dialysis indwelling catheter. The guide wire comprises a body, an expansion piece and an expansion piece, the expansion piece is arranged at one end of the body and provided with an expansion cavity, and the side face, away from the body, of the expansion piece is an arc face. And the expanding piece is connected with the main body and is used for expanding or shrinking the expanding piece. In practical application, the guide wire is matched with the dialysis catheter to realize catheter placement operation. The expansion piece arranged on the guide wire head can change the shape of the guide wire head, increase the contact area of the guide wire head and parts such as peritoneum, intestinal tract or blood vessels in the operation process, buffer the pressure applied to the peritoneum, intestinal tract or blood vessels by the guide wire, reduce the probability that the guide wire scratches or punctures the peritoneum, intestinal tract or blood vessels, improve the operation safety and reduce the operation difficulty.

The invention provides a method and device for removing a broken pipeline in a dialysis catheter, and the method comprises the steps: heating the corresponding region of the dialysis catheter and the broken pipeline, applying negative pressure to the dialysis catheter after the broken pipeline in the dialysis catheter expands with heat and contracts with cold, and sucking out the broken pipeline in the dialysis catheter by using a siphon principle. By means of thermal expansion and cold contraction and the siphon principle, the broken pipeline in the dialysis catheter can be rapidly removed, and the infection risk in the removal process is low.

The invention discloses a double-cavity dialysis catheter, and belongs to the technical field of hemodialysis, the double-cavity dialysis catheter comprises a catheter body, one end of the catheter body is communicated with a first branch pipe and a second branch pipe through a connecting piece, an exhaust mechanism is arranged on the outer side of the catheter body, and the exhaust mechanism comprises an auxiliary main pipe communicated with the surface of the catheter body; a shielding assembly is arranged at the end, close to the catheter body, of the auxiliary main pipe, the shielding assembly comprises a shielding cylinder installed in the auxiliary main pipe, and a liquid inlet hole for guiding in sterile normal saline is formed in the upper half section of the shielding cylinder. Gas in the catheter can be effectively separated and discharged, sterile normal saline is guided in through the liquid inlet hole in the upper half section of the shielding cylinder, the risk that gas enters blood circulation of a patient to cause gas embolism is avoided through the design, the safety of the hemodialysis process is guaranteed, and the quality of dialysis treatment is improved.

The utility model relates to the technical field of dialysis catheters, and discloses a rotatable and fixed temporary dialysis catheter structure which comprises a main butt joint assembly and two infusion tubes, the upper end of the main butt joint assembly is provided with two replacement assemblies used for enabling the two infusion tubes to be in butt joint with the main butt joint assembly, and the two sides of the upper end of the main butt joint assembly are further provided with clamping assemblies. The components can effectively prevent the replacement component from reversing after rotating and fixing, the device adopts a threaded screwing connection mode, so that the connection between the replacement component and the main butt joint component is tighter, and meanwhile, through the matching of the clamping component and the replacement component, even when a patient moves, the replacement component can be prevented from reversing. The replacement assembly and the main butt-joint assembly can be effectively prevented from loosening or falling off, and due to the design, the safety of dialysis treatment is improved, the continuity of treatment is ensured, and more reliable dialysis treatment experience is provided for a patient.

The application belongs to the technical field of medical devices, and discloses a peritoneal dialysis catheter sealing connector, which comprises a shell and further comprises a limiting assembly movably connected to the inside of the shell, and a rotating assembly movably connected to the middle of the outer wall of the shell. The cooperation between the structures such as the rotating drum, the arc groove, the arc plate and the guide groove facilitates the connection of the catheter and the connector. After the arc plate moves a distance, the circular rod is driven to slide into the inside of the guide groove inclined groove, so that the several arc plates drive the gaskets at both ends of the shell to abut against the outer walls of the dialysis catheter and the dialysis bag catheter respectively, and then the gaskets continue to move to drive the dialysis catheter and the dialysis bag catheter to move towards each other, so that the positions of the dialysis catheter and the dialysis bag catheter in the shell are fixed, and the gap between the two and the inner wall of the shell is reduced, thereby improving the overall sealing performance.

The invention belongs to the technical field of medical equipment, and discloses an intelligent hemodialysis catheter fixing device based on dynamic pressure feedback, which comprises a bandage, a limiting seat is fixed at the top end of the bandage, a vibration mechanism is mounted in the limiting seat, and an air blowing mechanism is mounted in the limiting seat. Through cooperation of a micro motor, a connecting rod, an eccentric wheel and other structures, when the dialysis catheter body is placed into the body of a patient for dialysis for a long time, the dialysis catheter body can be fixed to a connecting base through a limiting nut, at the moment, the two sides of a limiting plate are close to first reset springs, and the micro motor is started to drive the connecting rod and the eccentric wheel to rotate; when the eccentric wheel rotates, the eccentric wheel continuously makes contact with the top end of the limiting plate and presses the limiting plate downwards to generate deformation, when the eccentric wheel is disengaged, the limiting plate is reset through the first reset spring, the limiting plate vibrates, the thrombus forming probability is reduced, and therefore the purpose that the thrombus forming probability is reduced when the device is fixed is achieved.

The invention discloses a multifunctional dialysis catheter and a dialysis system thereof. The multifunctional dialysis catheter comprises a central tube and two dialysis joints communicated with the central tube, the central tube comprises an operating head, a connector and a working tube; two shunting channels corresponding to the dialysis joints are formed in the connector, and the shunting channels are communicated with the dialysis joints respectively; two independent channels corresponding to the flow dividing channels are formed in the working pipe, inlets of the independent channels are communicated with the flow dividing channels at the near end of the working pipe, and outlets of the independent channels are formed in the side face of the far end of the working pipe; a magnetic control section and a bending adjusting section are arranged at the far end of the working pipe; the magnetic control section is provided with a sealing piece, and the sealing piece is used for opening or closing the outlet of the independent channel according to the control of external magnetic equipment; and the bending adjusting section is bent under the control of the operating head. Remote opening and closing are achieved through the magnetic control section, and the pollution risk caused by manual adjustment is avoided; the far-end bending of the working tube is realized through the bending adjusting section, the blood vessel shape is adapted, and the implantation injury is reduced.

This utility model discloses a catheter seat assembly and a long-term dialysis catheter. The catheter seat assembly includes a catheter seat, a supporting inner tube, a locking outer tube, and a fixing ring. The catheter seat has a first end and a second end, which are detachably connected to an extension tube and a dialysis main tube, respectively. The supporting inner tube supports the proximal inner wall of the dialysis main tube and is placed inside the second end of the catheter seat. The locking outer tube is sleeved outside the supporting inner tube and wraps around the proximal end of the dialysis main tube, and is connected to the second end of the catheter seat. The fixing ring is sleeved outside the locking outer tube and locks the locking outer tube radially along the dialysis main tube to the proximal end of the dialysis main tube. In this utility model, the catheter seat assembly, through optimized structural design, is detachably connected to the dialysis main tube. When the catheter seat becomes blocked, it can be separated from the dialysis main tube by disassembling the catheter seat assembly, requiring only the replacement of the catheter seat assembly.

The dialysis catheter replacement connector comprises a flow divider, a first catheter, a second catheter and a third catheter, one end of the first catheter and one end of the second catheter are communicated with one end of the third catheter through the flow divider, and the other end of the first catheter is provided with a one-way valve used for inserting a guide wire. The other end of the second catheter is provided with a second catheter connector used for being connected with a radiography syringe, and the third catheter is provided with a third catheter connector used for being connected with the shearing opening of the built-in catheter. According to the dialysis catheter replacement tube connector, radiography and placement of a guide wire into the body of a patient can be conducted at the same time, operation of a doctor is facilitated, operation risks are reduced, and medical safety is improved; the catheter infection probability in the catheter replacement process can be further reduced; the blood loss of a patient can be reduced, the surgical tolerance of the patient is improved, and the postoperative recovery time is prolonged; the medical experience of the patient can be improved, and the satisfaction degree of the patient is improved.

The utility model discloses a hemodialysis catheter fixing device. The hemodialysis catheter fixing device comprises a mounting seat and a fixing seat which are arranged up and down, the mounting seat and the fixing seat are connected through a connecting rod, the two ends of the connecting rod are connected with spherical hinge modules mounted on the mounting seat and the fixing seat, a plurality of restraining grooves arranged at intervals are formed in the upper end of the fixing seat, and the end, corresponding to each restraining groove, of the fixing seat is provided with an inverted-U-shaped restraining ring. The dialysis catheter fixing device is installed at the corresponding position through the installation base, meanwhile, the catheter is fixed through the fixing base, when the dialysis catheter is fixed, the ends of all the restraint rings are clamped into the limiting clamping grooves under the action of the torsional springs, and the catheter is effectively fixed and prevented from falling off; as the spherical hinge structure capable of randomly adjusting the angle is arranged between the mounting seat and the fixed seat, the height and the angle of the fixed seat can be adjusted in a multi-angle manner through the spherical hinge structure to adapt to the arrangement direction of the conduit, and the influence on liquid flow caused by conduit bending is avoided.

The utility model provides a catheter fixator for hemodialysis, and belongs to the technical field of medical instruments. Comprising a fixing plate, a limiting mechanism is arranged at the top end of the fixing plate, the limiting mechanism is used for limiting a catheter, hook-and-loop fasteners are fixedly connected to the two sides of the fixing plate, the hook-and-loop fasteners are used for fixing the fixing plate, and a catheter limiting plate is fixedly connected to the top end of the fixing plate. The fixing plate is matched with the limiting mechanism to clamp a dialysis catheter, so that the dialysis catheter is limited and fixed, the situation that the dialysis catheter displaces and influences dialysis is avoided, the hook-and-loop fasteners are fixedly connected to the two sides of the fixing plate, the fixing plate can be tied to the limbs of a patient, and therefore the catheter fixator is worn, and the operation is convenient. The catheter limiting plate fixedly connected to the top end of the fixing plate can be used for placing and protecting the dialysis catheter, and the situation that the catheter is damaged due to the fact that foreign objects are prone to making contact with the catheter is avoided.

The invention relates to the technical field of dialysis catheters, and discloses a convenient-to-fix anti-blocking dialysis catheter assembly which comprises a catheter, a titanium alloy fixing joint is mounted on the left side wall of the catheter in a threaded manner, a titanium alloy connecting seat is mounted on the right side wall of the catheter in a threaded manner, and a titanium alloy joint seat is mounted at the right end of the titanium alloy connecting seat in a threaded manner. The flow guide assembly is arranged in an inner cavity of the guide pipe; the friction assembly is arranged on the outer side of the side wall of the guide pipe; the liquid spraying assembly is arranged on the right side of the outer side wall of the guide pipe; and the mounting assembly is arranged on the outer side wall of the titanium alloy connecting seat. Through accessories such as the flow guide assembly and the friction assembly, the catheter can be heated, scabs adhered to the inner wall of the catheter can be broken, the possibility that the catheter is blocked during dialysis of a patient is effectively reduced, meanwhile, the whole catheter assembly can be fixed to a bed leg through the installation assembly, and the catheter assembly can be conveniently used by the patient during dialysis.

The peritoneal dialysis catheter protective sleeve comprises a flexible sleeve, a first opening and a second opening are formed in the two ends of the flexible sleeve in the length direction of the flexible sleeve respectively, a notch extending in the length direction of the sleeve is formed in the peripheral wall of the sleeve, and the sleeve can deform to expand the notch. The first opening is used for allowing the dialysis catheter to penetrate through, the second opening is used for allowing the titanium connector to penetrate through, a positioning groove is formed in the inner circumferential wall of the second opening, and the positioning groove is used for being matched with a concave part of an external short pipe. According to the peritoneal dialysis catheter, it can be guaranteed that the joint of the titanium connector and the peritoneal dialysis catheter is not prone to being folded and bent, abrasion of the titanium connector and the peritoneal dialysis catheter is prevented, and therefore the peritoneal dialysis catheter is protected against breakage and seepage, and peritonitis is avoided. Meanwhile, the positioning groove is matched with the concave part of the external short pipe, so that the external short pipe can be protected from falling off due to various accidents to a certain extent.

The technical problem to be solved by the utility model is to provide the negative-pressure waterproof device for the peritoneal dialysis catheter, and the negative-pressure waterproof device is simple to operate and can effectively reduce the risk that the membrane dialysis catheter is stained with water. The negative-pressure waterproof device for the peritoneal dialysis catheter comprises a containing shell, a connecting pipe is arranged at the lower end of the containing shell, a suction cup is arranged at the lower end of the connecting pipe, a negative-pressure pipe is arranged at the upper end of the shell, a one-way air inlet valve is arranged in the negative-pressure pipe, a sealing cover is arranged at the upper end of the negative-pressure pipe, and an air inlet pipe is arranged on the side wall of the negative-pressure pipe. A sealing plug is arranged on the air inlet pipe, the containing shell is vacuumized through the vacuumizing pump, in the vacuumizing process, the suction cup can be adsorbed to the skin, the waterproof purpose is achieved, after use, only the sealing plug needs to be opened, external air is sucked in through the air inlet pipe, and the suction force between the suction cup and the skin can be reduced accordingly; therefore, the peritoneal dialysis catheter can be taken out of the storage shell, and the operation is simple.

A method and apparatus to direct a drug directly at the point needed for a specific duration for dialysis catheters which are made in standard sizes. Disclosed is a combination of a rate and duration-controlled infusion pump and reservoir and a pre-measured infusion catheter with a radiopaque distal tip. Along the length of the infusion catheter there is a luer lock connector and anti-leak valve. The invention is inserted into a dialysis catheter where the preset marking is aligned with the catheter hub and the distal infusion tip rest at or near the end of the dialysis catheter. The infusion unit is then activated, and the drug is delivered at the distal tip of the catheter, at or in the fibrin for maximum effect. The method of use and device saves time and resources as it can be deployed without the need for a surgical suite or heath care team.

The utility model discloses a special dressing for binding the tail end of dialysis pipeline maintenance, which comprises a main body unit, the main body unit comprises a first gauze, a second gauze and a dialysis catheter tail end, the first gauze and the second gauze are fixed, and the second gauze can be turned over. The tail end of the maintained dialysis catheter is placed on the remaining part, then the gauze II is stacked on the gauze I, so that the tail end of the dialysis catheter is covered between the gauze I and the gauze II, and then the gauze II and the tail end of the dialysis catheter are bonded and fixed through the adhesive tape III; then the first folding part and the second folding part are folded in the direction close to the tail end of the dialysis catheter along the first folding mark and the second folding mark respectively, then the fifth lining paper and the third lining paper are torn down, and the first adhesive tape and the second adhesive tape are turned over, so that the first adhesive tape and the second adhesive tape are bonded with the legs of the patient; and at the moment, the first adhesive tape and the second adhesive tape can fix the folded first folding part and the folded second folding part, the firmness is good in the mode, and operation is very convenient and fast.

This invention belongs to the field of intelligent sensor technology and discloses a method, system, and dialysis catheter for monitoring multimodal blood infections. The method includes: collecting and analyzing pressure and temperature data to obtain pressure time-frequency spectrum and temperature correction matrix; extracting features from the pressure time-frequency spectrum and temperature correction matrix to obtain analytical features, including pressure features, temperature features, and cross features; acquiring synthetic data and clinical data, and combining transfer learning to build a domain adversarial neural network to analyze the real-time analytical features and obtain predicted values ​​of patient infection risk probability and inflammatory factor concentration range; obtaining patient baseline data, and dynamically adjusting the pressure fluctuation tolerance bandwidth and temperature rise slope threshold based on reinforcement learning according to the patient infection risk probability and inflammatory factor concentration range predicted values ​​to generate personalized alarm commands. This invention can provide early warning of infection risk, reduce false alarm rate and false negative rate, and provide an intelligent and personalized solution for early intervention of blood infections.

The application provides a jugular vein dialysis catheter joint disinfection sealing fixing device, which comprises a shell, disinfection wiping mechanisms, a sealing outer bag, an arteriovenous catheter joint sealing inner bag, a strip-shaped elastic head cover and an ear cover; a partition plate is horizontally arranged in the shell; an upper cavity is formed above the partition plate in the shell; the disinfection wiping mechanisms are arranged below the partition plate in the shell and close to the front side and the rear side; the sealing outer bag is placed in the upper cavity of the shell; and the arteriovenous catheter joint sealing inner bag is arranged in the sealing outer bag in front and behind. In the insertion process of the arteriovenous catheter joint, the disinfection wiping mechanisms are driven to rotate, the elastic scraping blade is slid and scrapes off dirt (such as blood scabs) in the thread groove, the arteriovenous catheter joint is reduced to be exposed to the outside world, the probability of contamination of the arteriovenous catheter joint is reduced, the workload of medical staff is reduced, and pollution caused by manual operation of the medical staff is avoided.