129 results about "Dialysis catheter" patented technology

The utility model discloses a hemodialysis catheter interface fixing structure which comprises a supporting plate and a plurality of fixing assemblies used for fixing a hemodialysis catheter, detachable bandage assemblies are arranged on the left side and the right side of the supporting plate, and the fixing assemblies are installed on the supporting plate through installation assemblies. The detachable bandage assembly comprises an installation groove formed in the front face of the supporting plate, the installation groove penetrates through the supporting plate front and back, an installation block is inserted into the installation groove, a middle rod is fixedly connected between the front face and the back face of the inner wall of the installation block, and the surface of the middle rod is sleeved with a bandage. According to the fixing structure for the connector of the hemodialysis catheter, the bandage is designed to be of a structure capable of being detached from the supporting plate, only the installation block needs to be inserted into the installation groove during installation, only the limiting block needs to be pressed during detachment, operation is convenient and rapid, and therefore the bandage can be replaced and cleaned after being polluted.

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.

The present application relates to a kind of peritoneal dialysis catheter fixing auxiliary device, including the bottom plate for shielding stoma and the bandage for fixing bottom plate on patient's body, first through-hole for dialysis tube to pass through is opened in the thickness direction on the bottom plate, sleeve is mounted in the first through-hole, one end of the sleeve is communicated with first through-hole, the other end extends downward;Rotary fit has cover plate above the bottom plate, the bottom surface of the cover plate is sealed with the top surface of bottom plate, second through-hole is opened in the thickness direction on the cover plate, the first through-hole is located on the rotation track of second through-hole.This technical solution, by setting sleeve, can avoid stoma healing during interval, without using special dialysis tube daily care tool, effectively reduce the discomfort of patient's daily life, and can adjust the opening and closing state of stoma, facilitate medical staff operation.

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 invention provides a peritoneal dialysis catheter device based on magnetic control. The peritoneal dialysis catheter device comprises a magnetic control guided peritoneal dialysis catheter, and magnetic elements are evenly embedded in the abdominal cavity section of the peritoneal dialysis catheter; a plurality of electromagnetic coils are arranged in the magnetic field generator, magnetic fields in different directions and with different intensities are generated through the magnetic field generator, the abdominal cavity section of the peritoneal dialysis catheter is accurately controlled, and minimally invasive and accurate implantation of the peritoneal dialysis catheter is achieved. The flexible catheter is guided through magnetic force, non-invasive and accurate catheter resetting is achieved, when catheter drainage is not smooth due to omentum wrapping, the omentum can be released by guiding the abdominal cavity section of the peritoneal dialysis catheter to move and steer in the body to achieve the purpose that catheter drainage is smooth, and the magnetic navigation technology is applied to the field of peritoneal dialysis for the first time; precise implantation of the peritoneal dialysis catheter is achieved in a non-radiation and minimally invasive mode, and non-invasive and precise resetting during displacement is achieved.

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 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 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 utility model relates to the technical field of medical supplies, and particularly discloses an anti-pressing device for a hemodialysis catheter, which comprises a plurality of anti-pressing bodies which are movably connected in sequence, the pressure-proof body comprises a first half tube, a second half tube and at least one flexible connecting valve, and the first half tube and the second half tube are connected in a hinged mode; the first half tube and the second half tube are matched with each other and are used for forming a tubular structure body which is arranged outside the hemodialysis catheter in a sleeving manner; the adjacent tubular structural bodies are connected through the flexible connecting valves; the anti-pressing device for the hemodialysis catheter can be arranged on the periphery of the hemodialysis catheter in a sleeving mode, the hemodialysis catheter can be prevented from being pressed, and a good protection effect is achieved.

The utility model discloses a hemodialysis catheter fixing device which comprises an external connecting plate, the external connecting plate is installed on external equipment, a fixing mechanism is arranged on the external connecting plate, the fixing mechanism comprises a threaded pipe, a bidirectional sleeve, a middle sleeve, a middle strip, an elastic strip, an adjusting pipe, a rotating mechanism and a positioning mechanism, the bidirectional sleeve is installed on the external connecting plate, and the middle sleeve is installed on the external connecting plate. The number of the threaded pipes is two, the two threaded pipes are installed on the two sides of the two-way sleeve respectively, a plurality of elastic strips are symmetrically installed at the two ends of the middle sleeve respectively, due to the design of anti-skid grooves, the friction force of the adjusting pipe is increased, the fixing reliability is improved, and due to the arrangement of limiting rings, excessive rotation of the adjusting pipe is effectively prevented; the hemodialysis catheter fixing device is simple in structure, the catheter is protected against damage, the whole mechanism is ingenious in design, all parts are tightly matched, enough fixing force can be provided, excessive pressure on the catheter can be avoided, and the safety and stability of hemodialysis catheter fixing are greatly improved.

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 field of medical auxiliary instruments, in particular to a hemodialysis catheter fixing device which comprises a fixing support, vertical plates are arranged on the two sides of the fixing support in the length direction, and the hemodialysis catheter fixing device further comprises a synchronous fixing mechanism used for synchronously fixing a dialysis blood collection tube and a dialysis backflow tube. The synchronous fixing mechanism comprises a different-direction transmission screw, a first offset sliding block, a second offset sliding block, a support sliding rail, a movable clamping block and a fixed clamping block. In the hemodialysis process, a hemodialysis blood collection tube and a hemodialysis return tube penetrate through semicircular grooves of movable clamping blocks and fixed clamping blocks on the two sides of a fixing support respectively, a different-direction transmission screw rod rotates, the hemodialysis blood collection tube and the hemodialysis return tube are synchronously limited as the two movable clamping blocks get close to the fixed clamping blocks at the corresponding positions of the hemodialysis blood collection tube and the hemodialysis return tube, and the hemodialysis blood collection tube and the hemodialysis return tube are fixed. The dialysis blood collection tube and the dialysis return tube are prevented from accidentally shifting or falling off in the treatment process, the operation process is simplified, and the working efficiency 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 provides a hemodialysis catheter fixing device, and relates to the technical field of hemodialysis catheter fixing devices, the hemodialysis catheter fixing device comprises a fixing plate, a fixing structure is arranged on the fixing plate, the fixing structure is mainly composed of two first limiting blocks, the two first limiting blocks are both arranged on the fixing plate, and the first limiting blocks are arranged on the fixing plate. A first limiting block is arranged on the base, a rotating shaft is rotationally connected to the first limiting block, a second limiting block is fixedly connected to the rotating shaft, rubber blocks are fixedly connected to the first limiting block and the second limiting block, a connecting block is fixedly connected to the first limiting block, and a connecting groove is formed in the second limiting block; the hemodialysis catheter fixing device solves the problem that the hemodialysis catheter between a hemodialysis instrument and a patient naturally falls down under the action of gravity and scatters on the ground due to the fact that an existing hemodialysis catheter is usually directly fixed on the hemodialysis instrument, a venous catheter and an arterial catheter are prone to being wound, and the hemodialysis effect is affected.

The utility model discloses a hemodialysis catheter fixing device, and relates to the technical field of hemodialysis catheter fixing. The clamping device comprises a fixing block, the top of the fixing block is fixedly connected with a connecting block, a clamping assembly is arranged above the connecting block and comprises a first arc-shaped clamping plate and a second arc-shaped clamping plate, and the top of the second arc-shaped clamping plate is fixedly connected with a first fixing plate. By arranging the clamping assembly, specifically, after the fixing block is fixed, the hemodialysis catheter is placed between the first arc-shaped clamping plate and the second arc-shaped clamping plate, then the first arc-shaped clamping plate and the second arc-shaped clamping plate are close to each other and turned over, the clamping block moves to the right side of the second fixing plate, and at the moment, the hemodialysis catheter is clamped and fixed by the first arc-shaped clamping plate and the second arc-shaped clamping plate; a plurality of hemodialysis catheters are fixed through a plurality of fixing devices, the arrangement effect can be achieved, the winding situation is avoided, the situation of catheter folding or slipping is prevented, the hemodialysis catheters are more stable during use, and secondary injury to patients is avoided.

The utility model relates to the technical field of medical instruments, in particular to a peritoneal dialysis catheter nursing bag which comprises a nursing bag body. The protective cover is hinged to one side of the top of the nursing bag main body, and a handle is fixedly mounted at the top of the protective cover. The pressing plate is arranged at the top of the circular truncated cone, the inserting groove is formed in the center of the pressing plate, the limiting piece penetrates through the inserting groove in a matched mode, after the guide pipe body is wound around the periphery of the circular truncated cone, the pressing plate can be placed at the top of the circular truncated cone, the limiting piece penetrates through the inserting groove, and then the pressing plate can be fixed to the top of the circular truncated cone by rotating the limiting piece. And the catheter body can be prevented from falling off from the periphery of the circular truncated cone, and the storage stability of the catheter body can be guaranteed.

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.

This invention provides a peritoneal dialysis catheter repositioning device, comprising a catheter body, a sliding plug, a gas delivery device, and an external magnet. The catheter body is inserted into the peritoneal dialysis catheter. The sliding plug is slidably disposed within the catheter body. A plate-shaped internal magnet is embedded within the sliding plug; the magnetic poles of the internal magnet are perpendicular to the axis of the catheter body. The gas delivery device forces the sliding plug forward within the catheter body to the desired segment of the peritoneal dialysis catheter for adjustment. The external magnet attracts or repels the internal magnet, thereby adjusting the catheter segment to the set position. This invention can utilize the attractive force between the external magnet and the internal magnet to move a segment of the catheter outward, or utilize repulsive force to move the segment inward. Each adjustment is a localized adjustment of the peritoneal dialysis catheter's position, not only repositioning the catheter but also adjusting and repositioning the catheter's embedding shape within the peritoneal cavity.

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 invention belongs to the field of medical supplies, and particularly relates to a medical disinfection cotton piece. The aseptic cotton piece comprises a packaging bag and a cotton piece body contained in the packaging bag in a sealed mode, the packaging bag is made of deformable springback materials, a tearing indentation and a notch are formed in the top of the packaging bag, after the packaging bag is torn, a bag opening can be automatically and stably opened by extruding the two sides of a bag body, and a non-contact taking channel is formed. The cotton piece is in a fingerstall shape, a folded shape or a double-piece independent fixing structure, is connected with the inner wall of the packaging bag, forms a disinfection space after being unfolded, can stably wrap medical instruments such as a catheter connector and the like, and prevents slippage and displacement. The main body layer of the packaging bag can be made of PET, kraft paper or PE, the barrier layer is made of aluminum foil or EVOH, and the packaging bag has the advantages of high rebound resilience, high barrier property and low cost. The device effectively avoids hand pollution, improves the stability and efficiency of disinfection operation, and is suitable for clinical disinfection scenes of interfaces of central venous catheters, hemodialysis catheters and the like.

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.

The utility model provides a titanium alloy self-positioning peritoneal dialysis catheter which comprises a catheter body, the tail end of the intra-abdominal section of the catheter body is a closed warhead protruding outwards, an open hole is formed in the side face of the catheter body, and a titanium alloy insert is arranged in the tail end of the intra-abdominal section of the catheter body. The titanium alloy cylinder or the titanium alloy coating is arranged in the tail end of the intra-abdominal section of the catheter main body, so that the weight of the catheter main body can be increased, and self-positioning is realized under the action of gravity; the titanium alloy cylinder or the titanium alloy coating is arranged on the inner wall surface of the catheter main body and is not in contact with an adjacent organ, so that the safety of tissues and organs can be ensured; the titanium alloy barrel or the titanium alloy coating has no risk of falling off, and the titanium alloy material is inert and cannot be decomposed or allergic, so that the safety can be ensured in an electromagnetic environment; the tail end of the intra-abdominal section is provided with a closed warhead protruding outwards, and the closed warhead is closed and round, so that the guide wire does not exceed the tail end and can be in contact with surrounding tissues without discomfort.

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.