208 results about "Dialysis catheter" patented technology

The invention discloses a hydrogel coating for a hemodialysis catheter as well as a preparation method and application of the hydrogel coating. The functional hydrogel coating material is prepared from substances such as polyvinyl alcohol, acrylamide and sulfobetaine methacrylate in a thermal polymerization manner. The invention further discloses application of the hemodialysis catheter coating to improvement of lubrication, antibacterial and anticoagulation functions of a hemodialysis catheter, and the hemodialysis catheter coating has good stability and blood compatibility. Experimental results show that the hydrogel coating technology of the hemodialysis catheter can significantly improve the lubrication, bacterial adhesion resistance and thrombosis resistance functions of the hemodialysis catheter, and shows excellent bonding strength and blood compatibility.

The invention provides a hemodialysis catheter anti-falling device, and relates to hemodialysis, the hemodialysis catheter anti-falling device comprises a ring body, the inner side of the ring body is provided with an annular non-return air bag, the outer side of the ring body is sleeved with a pressure element used for pressurizing the annular non-return air bag, and the non-return inner diameter of the annular non-return air bag can be changed under the action of the pressure element; a driving element is arranged on one side of the ring body in parallel, and a driving rod is connected to the driving element and used for being connected with a pressure element. By arranging the pressure element and the driving element, rotation of the driving element relative to the ring body is achieved, so that the pressure element changes the pressure in the annular non-return air bag to change the inner diameter size of the passing groove, and therefore the hemodialysis catheter penetrating through the interior can be fixed in a non-return mode; and then the first magnetic suction supporting arm and the second magnetic suction supporting arm are detachably fixed to the outside, limiting of the hemodialysis catheter is completed, and the stability of the hemodialysis catheter in the using process is guaranteed.

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 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.

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 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 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 utility model discloses a hemodialysis catheter fixing device, which relates to the technical field of medical instruments and comprises a base, a circular groove is formed in the top end of the base, a first rotating shaft is rotatably connected to the bottom end of the inner side of the circular groove, a supporting plate is fixedly connected to the top end of the first rotating shaft, and a supporting column is fixedly connected to the top end of the supporting plate. By the adoption of the structure, a guide pipe is bound on the winding drum, then a guide pipe head needing to be used penetrates through the limiting opening, a user can rotate the supporting plate through the crank, the supporting plate can drive the winding drum to rotate together, and therefore the length of the guide pipe can be conveniently adjusted, and after the length of the guide pipe is adjusted, the guide pipe head can be used conveniently. A user can screw the first screw rod, the arc-shaped block can be pushed to move downwards when the first screw rod rotates, and the arc-shaped block can clamp the guide pipe on the inner side of the limiting opening, so that the purpose of fixing the position of the guide pipe can be achieved, and due to the fact that the height of the arc-shaped block is convenient to adjust, the guide pipes with different thicknesses can be conveniently limited.

The utility model discloses a peritoneal dialysis catheter fixing band, which relates to the technical field of peritoneal dialysis and comprises an annular fixing band body made of textile cloth, a first elastic band is sewn on the upper edge of the fixing band body, and a second elastic band is sewn on the lower edge of the fixing band body. A double-layer cloth bag is sewn on the inner side of the fixing band body, and a first peritoneal dialysis tube outlet and a second peritoneal dialysis tube outlet are symmetrically formed in the double-layer cloth bag respectively; an outer cloth bag is sewn on the outer side of the double-layer cloth bag; according to the utility model, the fixing band body made of the textile cloth is arranged, so that the material is soft and more comfortable, the air permeability is good, and the skin state cannot be influenced when a patient uses the fixing band; meanwhile, the first elastic band and the second elastic band are sewn on the fixing band body, the fixing band body can be fixed to the abdominal cavity of the patient, the displacement phenomenon is avoided, and the fixing band can adapt to patients of different body types.

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 utility model relates to the technical field of peritoneal dialysis, and discloses a peritoneal dialysis catheter outlet flusher, which comprises a catheter, a guide wire, an injector and a screw cap, the peritoneal dialysis catheter outlet flusher is provided with the catheter, the catheter is a bendable catheter, the guide wire is a hollow bendable guide wire, the catheter can be guided to enter a tunnel and an outlet, and the screw cap is arranged on the catheter. The first injector is connected with a guide wire to flush a tunnel and an outlet. The inner diameter of the catheter is slightly larger than the outer diameter of the guide wire, the guide wire can move forwards and backwards, the open flushing length is adjusted, liquid is prevented from seeping out, multi-angle flushing is achieved when the first injector is pressurized, the catheter is provided with the movable and detachable plastic head, the position can be adjusted according to different indwelling depths, and meanwhile the plastic head on the surface of the catheter is convenient to use. The peritoneal dialysis catheter is provided with the corresponding screw cap, and the catheter can be closed when flushing is not needed, so that the requirement of multiple times of flushing when a peritoneal dialysis tunnel and an outlet of a patient are infected is met, and meanwhile pain caused by multiple times of position adjustment is avoided.

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 technical field of fixing clamps, and particularly discloses a hemodialysis catheter adjusting and fixing clamp which comprises a fixing pad, a fixing wing is arranged at the top of the fixing pad, side wings are fixed to the two sides of the fixing wing, and suture holes are formed in the side wings. The limiting assemblies are arranged on the two sides of the fixing pad, the suture holes are limited through the limiting assemblies, and rapid and accurate butt joint of the fixing wings and the fixing pad is achieved; the fixing assemblies are arranged on the side edges of the side wings, when the side wings abut against the surfaces of the fixing assemblies, the side wings are clamped and limited through the fixing assemblies, and the position butt joint of the fixing pads and the fixing wings is limited through the limiting assemblies, so that the fixing wings are prevented from transversely moving on the surfaces of the fixing pads; the side wings are clamped and limited through the fixing assemblies at the same time, so that the fixing wings are installed more stably, the butt joint positions of the fixing pads and the fixing wings do not need to be manually adjusted, and the fixing wings are installed more conveniently.

The invention relates to the technical field of catheter cleaning equipment, in particular to a hemodialysis catheter cleaning device which comprises a platform and further comprises a cylinder, a positioning rotating assembly used for fixing and rotating a hemodialysis catheter is arranged in the cylinder, and the cylinder is connected with the platform through a connecting assembly; the cleaning assembly comprises a cover body arranged at the top of the cylinder body, a water inlet communicated with the center of the cover body, a tube body arranged at the bottom of the cover body and communicated with the water inlet, and a scrubbing part spirally distributed along the outer wall of the tube body; according to the cleaning device for the hemodialysis catheter, the cleaning effect on the threaded opening of the hemodialysis catheter is improved by arranging the scrubbing part, and all-directional cleaning of the hemodialysis catheter is achieved.

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.