50 results about "Hemodialysis technique" patented technology

The invention relates to the technical field of hemodialysis, and discloses a hemodialysis ultrafiltration amount adjusting system based on multi-parameter self-adaptive control, which is used for solving the problem of insufficient prediction and prevention precision of a hemodialysis induced hypotension risk in a traditional system. According to the method, firstly, multi-parameter physiological data of the blood volume, the blood pressure and the ion concentration are synchronously collected in the whole dialysis process, then a physiological state data set is constructed through unified standardization and correlation matching, related change modes of the blood volume and the blood pressure are extracted, and ion deviation is superposed to form comprehensive risk characteristics; the risk characteristics are compared with a preset threshold value through trend analysis, the weight of each risk component is adjusted in a self-adaptive mode, a hypotension risk trend index is generated, the ultrafiltration rate is dynamically adjusted in a graded mode according to the indexes, the indexes are coupled with a real-time physiological data feedback closed loop, and therefore the prediction precision and the regulation and control refinement level of dialysis-induced hypotension are improved.

The invention relates to the technical field of hemodialysis, in particular to a hemodialysis filter and a filtering system.The hemodialysis filter comprises a tube body, end covers are detachably installed at the two ends of the tube body, and a liquid inlet and a liquid outlet which are communicated with the interior of the tube body are formed in the two ends of the tube body; the filter element is coaxial with a concentric structure arranged between the pipe body and the end cover; the one-way valve body is mounted on the liquid inlet; the compression pipe fitting and the plugging structure are communicated with the liquid outlet, and the compression pipe fitting and the plugging structure are linked, so that when the compression pipe fitting acts, the plugging structure can plug the liquid outlet; the storage assembly is connected with the pipe body and the compression pipe fitting, the storage assembly has two states of being combined with and separated from the compression pipe fitting, and when the storage assembly is separated from the compression pipe fitting, the compression pipe fitting can enable blood in the liquid outlet to flow back, and the situation that the filtering effect is reduced due to the fact that the filter element is blocked is avoided.

The utility model discloses an arm fixing device for hemodialysis, which relates to the technical field of hemodialysis and comprises a connecting component, an adjusting component and a limiting mechanism. The connecting assembly comprises a connecting bottom plate, a clamping piece and a locking piece; the adjusting assembly comprises an adjusting rod, a supporting plate and a positioning rod; a lifting rod is movably arranged in the adjusting rod, an adjusting sleeve is arranged on the adjusting rod, and the adjusting sleeve is in threaded connection with the lifting rod; the limiting mechanism comprises a supporting bracket, a binding belt and a limiting sleeve; a notch is formed in the supporting bracket, one end of the binding belt is fixedly connected with the supporting bracket, and the other end of the binding belt penetrates through the notch and is detachably connected with the supporting bracket; a limiting piece is arranged on the supporting bracket; by arranging the adjusting rod, the height between the connecting bottom plate and the supporting plate can be adjusted, so that the height of the supporting bracket is adjusted, use is more flexible, the arm of a patient is bound in the supporting bracket under the constraint of the limiting sleeve and the binding belt, and the situation that the puncture needle is pulled to fall off due to the fact that the arm of the patient moves is avoided.

The invention discloses a hemodialysis central venous catheter with an anti-adherence assembly, and relates to the technical field of hemodialysis, the hemodialysis central venous catheter comprises a double-cavity central venous catheter body, the outer end of the double-cavity central venous catheter body is connected with a connector, the upper end of the connector is connected with a blood outlet pipe and a blood inlet pipe, and the blood outlet pipe and the blood inlet pipe are connected with an anti-adherence assembly. The blood outlet pipe is connected with the blood inlet end of the hemodialysis instrument, and the blood inlet pipe is connected with the blood outlet end of the hemodialysis instrument. The blood outlet and the blood inlet of the central venous catheter are formed in the front end of the central venous catheter, the situation that the side edge of the blood outlet is prone to being attached to the wall to affect the bleeding amount is avoided, meanwhile, the wall attachment preventing assembly is arranged at the end of the central venous catheter, and a gap is formed between the end of the central venous catheter and the blood vessel wall; and the phenomenon that the central venous catheter adheres to the wall is further prevented, so that bleeding and blood inflow of the central venous catheter are guaranteed, and the dialysis effect of a patient is improved.

The invention relates to the technical field of hemodialysis, and discloses a hemodialysis pipeline connecting device which comprises two pipeline mechanisms, a connecting mechanism is jointly connected between the two pipeline mechanisms, the connecting mechanism comprises an outer shell, sealing sleeves are fixedly installed at the two ends of the outer shell, and the two ends of the outer shell are each fixedly provided with one sealing sleeve. The sealing sleeve is arranged on the periphery of the pipeline mechanism in a sleeving mode. Sealing mechanisms are further arranged at the two ends of the connecting mechanism, each sealing mechanism comprises outer sliding ring bodies arranged on the two sides of the outer shell, multiple sets of first sealing gaskets are fixedly installed at one ends of the outer sliding ring bodies, and the rotating pipeline body or the outer shell, the inner sliding ring bodies and the fixed ring bodies are screwed together. The first sealing gaskets are twisted in the annular space until the edges of the adjacent first sealing gaskets are attached to each other and completely contained in the annular space, so that the inner sliding ring body, the first sealing gaskets and the pipeline body can be tightly attached together.

The invention relates to the technical field of hemodialysis, in particular to a citric acid dialysis concentrated solution and a preparation method thereof. The anticoagulant factor X antibody is provided for the first time and is applied to preparation of the citric acid dialysis concentrated solution, result analysis shows that after the anticoagulant factor X antibody and the citric acid dialysis concentrated solution are combined, a synergistic effect is achieved on the anticoagulant effect of peripheral blood, the anticoagulant effect is extremely remarkable, and the application prospect of the citric acid dialysis solution can be remarkably improved.

The application discloses a hemodialysis sufficiency evaluation method based on sodium balance, and relates to the technical field of hemodialysis, and the method comprises the following steps: obtaining the body weight, dry body weight and serum sodium concentration of a patient before dialysis; calculating a target sodium removal amount Na_target=DeltaW* [Na]s / 0.93, and establishing a quantitative equivalent relationship between the body weight increase and sodium accumulation; obtaining or calculating an actual sodium removal amount (including two ways of convection and diffusion); calculating a sodium removal ratio R_Na=Na_actual / Na_target; and evaluating the dialysis sufficiency according to the R_Na. The application firstly changes the dialysis sufficiency evaluation from 'urea removal' to'sodium and water removal', and directly aims at the main pathological burden of kidney failure patients, i.e. sodium and water retention. The sodium removal ratio R_Na is more directly related to the volume state and cardiovascular prognosis of the patient than the traditional Kt / V index. The method only needs the body weight and serum sodium before and after dialysis to be calculated, and can be integrated into the existing dialysis information system.

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 present application relates to the technical field of hemodialysis, in particular to a quick-dissolving citric acid dialysis powder and a preparation method thereof.The quick-dissolving citric acid dialysis powder provided by the present application comprises the following raw materials by weight: 150-350 parts of sodium chloride; 5-15 parts of calcium chloride; 2-10 parts of potassium chloride; 5-15 parts of magnesium chloride; 10-50 parts of citric acid; 20-40 parts of glucose; 5-15 parts of polyethylene glycol; 5-15 parts of glycerol; and 500-1000 parts of pure water.The quick-dissolving citric acid dialysis powder provided by the present application uses high-purity citrate as the main component, and through optimization of the formula design and special process treatment, the solubility of the product is significantly improved, and the product can be completely dissolved in a short time, meeting the needs of rapid use in clinical practice.

The application discloses an ultrafiltration permeation regulation method and device based on a gradient sponge structure dialysis membrane and relates to the technical field of hemodialysis. An intelligent response membrane assembly containing a nonlinear aperture gradient is constructed; a signal is collected and a concentration polarization critical index is calculated; when the threshold value is exceeded, a multi-frequency coupling pulse control instruction containing a mechanical resonance excitation waveform and a phase reverse matching osmotic pressure oscillation waveform is generated; mechanical resonance excitation is applied to the blood side to induce membrane layer micro-breathing deformation, and an osmotic pressure oscillation waveform is injected into the dialysate side to form a reverse solute diffusion field; microgel deformation feedback signals are monitored in real time, waveform parameters are dynamically adjusted, and the concentration polarization critical index is returned to a safe interval until the ultrafiltration flux is adaptively regulated. The device comprises an intelligent gradient membrane assembly, a fluid power regulation module, an osmotic pressure wave generation module, a sensing feedback array and a central processing unit, can effectively inhibit membrane pollution and concentration polarization, and improves the system operation stability.

The invention relates to the technical field of hemodialysis, and discloses a subcutaneous indwelling hemodialysis port and an assembly thereof, and relates to the technical field of hemodialysis, the subcutaneous indwelling hemodialysis port comprises an indwelling base, a puncture partition, a leather bag strip, a liquid storage box, a positioning assembly and a needle inserting assembly, the puncture partition is installed on the indwelling base, and liquid storage is fixed to the bottom of the puncture partition; the independent closed liquid storage box is adopted, when the puncture partition and the indwelling base are installed, the liquid storage box is brought into the indwelling base, a thin film at the bottom of the liquid storage box is punctured by the barbs through pressing, bonding is carried out through flowing-out medical sterile glue, meanwhile, liquid is injected between the puncture partition and the indwelling base, the puncture partition is supported, and the puncture partition and the indwelling base are fixed. Meanwhile, the rubber ring can be punctured by the puncture head, rapid bonding of the edge of the indwelling base on the edge of the puncture partition is achieved, leather bag strips can be filled, the fitness of the installation position is improved, and therefore the installation cleanliness of the liquid storage box in the natural environment is guaranteed while the installation speed is increased, and the use safety of a patient is effectively improved.

The invention relates to the technical field of hemodialysis, and discloses a nephrology department blood auxiliary dialysis device which comprises a protective cylinder, a fixing mechanism is arranged on the rear side of the protective cylinder, the fixing mechanism is used for conveniently fixing patients with different arm girths, and the fixing mechanism comprises a hollow ring; the two hollow rings are fixedly connected to the left side and the right side of the protective cylinder correspondingly, rotating rings are rotationally connected to the adjacent sides of the interiors of the two hollow rings correspondingly, curved grooves are formed in the peripheries of the sides, away from each other, of the two rotating rings correspondingly, and inserting columns are slidably connected to the inner sides of the multiple curved grooves correspondingly; and one end of each inserting column is fixedly connected with a supporting block. A rotating ring can rotate through a push rod, and the rotating ring can push an inserting column to move through a curved groove, so that a supporting block is driven to move, a plurality of supporting plates in a hollow ring move towards the middle at the same time, the arms of a patient are firmly fixed, and through dynamic adjustment of the supporting plates, the device is used by patients with different arm circumferences.

The invention relates to the technical field of hemodialysis, in particular to a compound dialysis composition and a preparation method thereof. The invention provides a compound alpha ketoacid dialysis composition. The compound alpha ketoacid dialysis composition comprises calcium racemic ketoisoleucine, calcium ketoleucine, calcium ketophenylalanine, calcium ketovaline, calcium racemic methionine, L-lysine acetate, sodium chloride, potassium chloride, calcium chloride, magnesium chloride, sodium diacetate and sodium bicarbonate. According to the invention, the compound alpha keto acid component is added into the hemodialysis liquid, so that toxin removal and nutrition supplement can be realized at the same time when a patient is subjected to hemodialysis, a good treatment effect is achieved, and meanwhile, the pain caused by taking a large amount of medicine every day is avoided. Meanwhile, stimulation and damage to intestines and stomach can be avoided by avoiding oral administration, and the appetite of a patient is improved.

The invention belongs to the technical field of hemodialysis, and provides a multi-cavity hemodialyzer. The invention relates to a multi-chamber hemodialyzer which comprises a multi-chamber shell, a liquid storage cavity, a liquid exchange cavity, a liquid inlet pipe, a liquid outlet pipe, a liquid inlet pipe and a liquid outlet pipe, wherein the multi-chamber shell is provided with a liquid storage cavity and a liquid exchange cavity; an inlet of the exchange liquid cavity is communicated with the liquid storage cavity; a plurality of liquid storage cavities are arranged and are uniformly distributed; wherein dialysis liquid sequentially passes through the liquid storage cavity and enters the exchange liquid cavity; the filtering assembly is arranged in the multi-chamber shell and is used for filtering dialysis liquid; one end of the hemodialysis main body is communicated with an outlet of the exchange liquid cavity; the hemodialysis main body is used for hemodialysis; and the other end of the hemodialysis main body is communicated with the multi-chamber shell. In conclusion, the multi-chamber hemodialyzer is provided; therefore, the multi-cavity hemodialyzer is provided, the flowing stroke of dialysate can be increased, and the filtering and purifying effect is improved.

The invention relates to the technical field of hemodialysis, and discloses a combined protection device for hemodialysis, which comprises a base and a connecting block, the top of the base is fixedly connected with a connecting seat, the interior of the base is fixedly connected with a spring I and a supporting plate, and the bottom of the spring I is fixedly connected with a limiting plate; an extrusion block is fixedly connected to the bottom of the limiting plate, the two supporting plates are arranged, first tension springs are fixedly connected to the opposite faces of the two supporting plates, and a second sliding block is fixedly connected to the end, away from the corresponding supporting plate, of one first tension spring; the end, away from the supporting plate, of the other first tension spring is fixedly connected with a first sliding block. Through mutual cooperation of structures such as an extrusion block, a first spring, a clamping plate, a limiting plate, a second sliding block and a clamping block, the position where installation needs to be conducted can be conveniently clamped and fixed, then the protection device can be conveniently installed, and meanwhile medical staff can conveniently conduct installation and adjustment operation.

The invention discloses a hemodialysis device and a using method thereof, and relates to the technical field of hemodialysis, the hemodialysis device comprises a support frame, one side of the support frame is provided with a fitting groove, the fitting groove is in contact fit with the hemodialysis device, one side of the support frame is fixedly connected with a support rod, one end of the support rod is provided with a rotating groove, and the rotating groove is fixedly connected with the hemodialysis device. A rotating frame is rotationally connected into the rotating groove, two symmetrically-arranged attaching pipes are arranged on one side of the rotating frame, an attaching mechanism used for attaching the attaching pipes is arranged between the two attaching pipes, and a plurality of contact pipes are fixedly connected to the side walls of the attaching pipes; and a conveying mechanism for keeping the temperature of the dialysis pipeline constant is arranged on the side wall of the contact pipe. By arranging the heating block, the circulating pump, the conveying pipe, the circulating pipe and other structures, constant-temperature treatment is conducted on dialysate through the heating block, circulating conveying of the circulating pump is matched, the dialysate can be kept at the constant temperature all the time when circulating in a human body, and then adverse effects on a patient are avoided.

The invention discloses a hemodialysis treatment system for the nephrology department, and belongs to the technical field of hemodialysis, and the hemodialysis treatment system comprises a determination module which is used for determining at least one target prediction model corresponding to a first patient; the prediction module is used for predicting each target dialysis parameter based on each target prediction model when the first patient is subjected to hemodialysis to obtain a predicted value sequence corresponding to each target dialysis parameter; the trend module is used for determining the actual change trend of each target dialysis parameter and determining the predicted change trend of each target dialysis parameter based on each predicted value sequence; and the processing module is used for comparing each predicted change trend with the corresponding actual change trend and carrying out hemodialysis abnormity reminding based on a comparison result. The system can accurately monitor the abnormal condition in hemodialysis, so that the abnormal condition can be prompted in time.

The invention relates to the technical field of hemodialysis, in particular to a concentration adjusting device for hemodialysis, which comprises a mounting box, a hemodialyzer is arranged in the mounting box, one end of the hemodialyzer is connected with a blood inlet pipe, the other end of the hemodialyzer is connected with a blood outlet pipe, the blood inlet pipe is connected with a blood drawing assembly, and the blood drawing assembly is connected with a blood outlet pipe. The blood drawing assembly is connected with a blood drawing pipe, the blood outlet pipe is connected with a blood transfusion pipe, the blood drawing pipe and the blood transfusion pipe penetrate through the outer side of the mounting box and are provided with needles, a liquid inlet pipe is arranged at the position, close to the blood outlet pipe, of the hemodialyzer, and a liquid outlet pipe is arranged at the position, close to the blood inlet pipe, of the hemodialyzer. The liquid inlet pipe is communicated with a dialysate concentration adjusting assembly, the liquid outlet pipe is communicated with a waste liquid collecting tank, and the dialysate concentration adjusting assembly adjusts the dialysate concentration according to the requirements of a patient and injects the dialysate into the hemodialyzer from the liquid inlet pipe, so that the purification quality of blood of the patient is ensured, and the effect of adjuvant therapy on the patient is achieved; and a proper supplementary regulation effect is realized.

The application discloses an ultrafiltration permeation regulation method and device based on a gradient sponge structure dialysis membrane and relates to the technical field of hemodialysis. An intelligent response membrane assembly containing a nonlinear aperture gradient is constructed; a signal is collected and a concentration polarization critical index is calculated; when the threshold value is exceeded, a multi-frequency coupling pulse control instruction containing a mechanical resonance excitation waveform and a phase reverse matching osmotic pressure oscillation waveform is generated; mechanical resonance excitation is applied to the blood side to induce membrane layer micro-breathing deformation, and an osmotic pressure oscillation waveform is injected into the dialysate side to form a reverse solute diffusion field; microgel deformation feedback signals are monitored in real time, waveform parameters are dynamically adjusted, and the concentration polarization critical index is returned to a safe interval until the ultrafiltration flux is adaptively regulated. The device comprises an intelligent gradient membrane assembly, a fluid power regulation module, an osmotic pressure wave generation module, a sensing feedback array and a central processing unit, can effectively inhibit membrane pollution and concentration polarization, and improves the system operation stability.

The utility model discloses a dialysis pipeline fixer, which relates to the technical field of hemodialysis, and comprises a lower buckling plate, an upper buckling plate and a lower buckling plate, the upper buckling plate is hinged to the top of the lower buckling plate, and two mounting grooves are formed in the side, adjacent to the upper buckling plate, of the lower buckling plate; the positioning device is adapted to be of a structure for connecting the lower buckling plate and the upper buckling plate, and the clamping device is fixed in the mounting groove and is used for clamping the dialysis tube; the wearable part is fixed on the upper buckling plate, and the lower buckling plate is worn on the arm of the patient; the metal hose is mounted at the opening of the mounting groove; by means of the characteristics of the metal hose, the situation that the dialysis tube is bent or folded under the action of external force, the flowing size of the dialysis tube is reduced, and the flowing speed of blood during hemodialysis is affected is avoided, and meanwhile the dialysis tube can be normally bent under external pulling.

The invention belongs to the technical field of hemodialysis, particularly relates to a preparation method capable of effectively inhibiting bacterial proliferation in a hemodialysis concentrated solution, and provides the following scheme aiming at the problems that bacteria are not inhibited any more and are easy to multiply and proliferate again after existing production filling. The method comprises the following steps that S1, materials of the hemodialysis concentrated solution comprise powder A, powder B, dialysis water and antibacterial liquid, the powder A is prepared from, by weight, 46.00%-48.00% of sodium chloride, 0.85%-0.95% of potassium chloride, 0.65%-0.75% of calcium chloride, 0.20%-0.25% of magnesium chloride, 48.00%-49.00% of glacial acetic acid and 3.00%-4.00% of sodium acetate, the powder A, the powder B composed of sodium bicarbonate and the antibacterial liquid composed of citrate and a silver ion antibacterial agent are used for preparing the hemodialysis concentrated solution, and the antibacterial liquid is used for preparing the hemodialysis concentrated solution; while bacteria in the hemodialysis concentrated solution are eliminated as much as possible, the antibacterial property of the hemodialysis concentrated solution can be enhanced through citrate and the silver ion antibacterial agent, and bacterial proliferation in the hemodialysis concentrated solution is inhibited.

The invention relates to the technical field of emergency hemodialysis, in particular to an emergency portable hemodialyzer which comprises a box assembly, a mounting frame is fixed in the box assembly, a dialyzer body is detachably connected to the mounting frame, a fixing frame is fixed to one side of the bottom in the box assembly, two shell parts are fixed to the fixing frame from top to bottom, and the shell parts are detachably connected to the mounting frame. An elastic pipe is detachably connected into the shell part. According to the blood dialysis device, driving can be conducted through the pedal pressing mechanism, the two hands of an operator can be released so as to better cope with the condition of a patient, meanwhile, the rotating piece and the abutting shaft are driven to operate through double-gear reverse transmission, relative flowing of blood and dialysate is achieved, dialysis treatment of the blood is effectively achieved, the parts are convenient to fold and fix, and the operation is convenient. And carrying is convenient.

The invention relates to the technical field of hemodialysis, in particular to a hemodialysis pipeline automatic disinfection and waste liquid separation integrated device which comprises a frame body, and a collecting box is arranged on one side of the lower portion of the frame body and used for collecting waste liquid. The shell A and the shell B are movably connected to the interior of the frame body, a mounting frame is arranged between the middle of the shell A and the middle of the shell B, a dialysis membrane is arranged in the middle of the mounting frame, a liquid outlet pipe A is arranged on the upper side of the shell A, a liquid inlet pipe A is arranged on the lower side of the shell A, a liquid inlet pipe B is arranged on the upper side of the shell B, and a liquid outlet pipe B is arranged on the lower side of the shell B; the device further comprises abutting rods fixedly installed on the outer wall of the shell A and the outer wall of the shell B, lap joint blocks are fixedly installed at the ends of the abutting rods, and inclined planes A are formed in the upper sides of the lap joint blocks. The shell A and the shell B are detachably connected and are matched with the mounting frame arranged in the middle positions of the shell A and the shell B, so that the high efficiency of dialysis can be ensured; through the design of the mode, the comprehensiveness of subsequent disinfection can be ensured.

The application discloses a hemodialysis processing system for a nephrology department, and belongs to the technical field of hemodialysis, and comprises: a determination module configured to determine at least one target prediction model corresponding to a first patient; a prediction module configured to predict each target dialysis parameter based on each target prediction model when the first patient is subjected to hemodialysis, and obtain a prediction value sequence corresponding to each target dialysis parameter; a trend module configured to determine an actual change trend of each target dialysis parameter, and determine a predicted change trend of each target dialysis parameter based on each prediction value sequence; and a processing module configured to compare each predicted change trend with a corresponding actual change trend, and perform an abnormality reminder for hemodialysis based on a comparison result. The system can accurately monitor abnormal conditions in hemodialysis, so that an abnormality reminder can be timely performed.

The invention discloses an upper limb fixing support frame for hemodialysis nursing, and relates to the technical field of hemodialysis, the upper limb fixing support frame comprises a support plate, the front part of the support plate is provided with a wire clamping mechanism for fixing an infusion tube, and two sides of the support plate are provided with limiting mechanisms for preventing arms from slipping off from the top of the support plate; an extrusion mechanism used for improving the comfort level of a patient is arranged in the limiting mechanism, the wire clamping mechanism comprises two symmetrically-arranged connecting rods, a mounting plate is slidably connected to the outer portions of the two connecting rods, rectangular rings are symmetrically slidably connected to the outer portion of the mounting plate in a sleeving mode, and a fixing clamp is fixedly connected to the top of each rectangular ring; by arranging the thread clamping mechanism, when hemodialysis is carried out, an infusion tube is clamped and fixed in the fixing clamp, by fixing the infusion tube, the linear path of the infusion tube can be maintained, the probability that the infusion tube is wound, folded or pressed is reduced, and the risk that a needle falls off due to the fact that a patient does not act autonomously or touches by mistake is reduced.

An errhysis alarm device for dialysis relates to the technical field of hemodialysis and comprises a base, an induction unit and a mounting frame, a first accommodating groove is formed in the center of the bottom surface of the base, a second accommodating groove is formed in the outer side of the first accommodating groove along the lower surface of the base, the induction unit is arranged in the first accommodating groove, and the second accommodating groove is arranged in the mounting frame. The mounting frame is arranged in the second containing groove in a clamped mode, a mounting groove is formed in the surface of the bottom of the mounting frame, an air bag layer is arranged in the mounting groove, and the humidity sensitive piece and the air bag layer are arranged at the bottom of the base, so that monitoring and processing of the wound position of the arm of the user are achieved; the wet sensitive piece can detect the bleeding condition of the wound, and once the bleeding condition is detected, the controller triggers the air bag layer to expand, so that the air bag layer can apply proper pressure to the bleeding area of the wound, and the effects of pressing and stopping bleeding are achieved.

The invention discloses a hemodialysis pipeline fixing device convenient to connect, and relates to the technical field of hemodialysis, the hemodialysis pipeline fixing device comprises a fixing support, and the fixing support is fixed on a supporting rod through a clamping unit; the main fixing assembly is fixedly connected with the fixing support. The front end of the main fixing assembly is provided with a main guide groove unit. An auxiliary fixing assembly is arranged in the main fixing assembly. The front end of the auxiliary fixing assembly is provided with an auxiliary guide groove unit, and the main guide groove unit and the auxiliary guide groove unit are matched with each other to form a complete guide groove structure. The main guide groove unit and the auxiliary guide groove unit are used for placing an artery pipeline and a vein pipeline; a plurality of groups of guide units are further arranged on the main guide groove unit and the auxiliary guide groove unit; the guide units are used for clamping an artery pipeline and a vein pipeline into the main guide groove unit or the auxiliary guide groove unit; the device has the advantages that an artery pipeline and a vein pipeline can be fixed at the same time, the pipelines are prevented from slipping, and the pipeline storage efficiency and safety are improved.

The invention is applicable to the technical field of hemodialysis, and provides a puncture needle fixing device for hemodialysis, which comprises a main supporting seat used for supporting the arm of a patient, a cold and hot compress assembly and a cooling assembly mounted on the main supporting seat and used for cold compress or hot compress of the arm of the puncture needle of the patient, and a fixing assembly arranged on the main supporting seat and used for fixing the arm of the puncture needle of the patient. The fixing assembly comprises a fixing belt and a pressing air bag, the fixing belt is fixedly installed on the main supporting seat and used for protecting the position of the puncture needle on the arm of a patient, the pressing air bag is connected with the fixing belt and the main supporting seat, and through the arrangement of the fixing assembly, the position of the puncture needle of the patient is pressed and fixed through the effect of air pressure; therefore, the position of the puncture needle cannot be easily pulled, the puncture needle is prevented from puncturing the blood vessel of a patient, the safety of hemodialysis of the patient is improved, the operation is simple and convenient, and the pressing and fixing pressure on the puncture needle can be adjusted according to the feeling of the patient.

The application provides a hemodialysis catheter fixing device, belonging to the technical field of hemodialysis. The hemodialysis catheter fixing device comprises an adjusting assembly and a fixing assembly. The device is first fixed at the arm of a patient, realizing the linkage of the body of the patient and the fixed catheter of the device. The universal adjustment of the carbon steel elbow pipe is realized, the support column can be extended by moving the support column, and the support column can be fixed by rotating the knob, so that the catheter can be fixed. Since the first fixing seat and the second fixing seat are provided with first grooves and second grooves of different sizes on one side, different sizes of catheters can be fixed, which is convenient to use. The liquid passing through the catheter is heated by the heating wire, the heat conducting plate and the interlayer cloth, which is beneficial to improve the comfort of dialysis, and thus it is convenient to fix catheters of different sizes, which is convenient to adjust the height of the catheter, has high applicability, and thus improves the practicality.

The application discloses a double-cavity dialysis catheter and belongs to the technical field of hemodialysis, which comprises a catheter body, a first branch pipe and a second branch pipe are communicated and installed at one end of the catheter body through a connecting piece, an exhaust mechanism is arranged on the outer side of the catheter body, the exhaust mechanism comprises an auxiliary main pipe which is communicated and installed on the surface of the catheter body, a shielding assembly is arranged at one end of the auxiliary main pipe close to the catheter body, the shielding assembly comprises a shielding cylinder which is installed in the auxiliary main pipe, a liquid inlet hole for introducing sterile normal saline is arranged in the upper half section of the shielding cylinder, the gas filter plate in the lower half section of the shielding cylinder is used for discharging excess gas, the gas permeable membrane plate on the surface of the auxiliary main pipe is used for effectively separating and discharging the gas in the catheter, and the sterile normal saline is introduced through the liquid inlet hole in the upper half section of the shielding cylinder at the same time, so that the risk of gas embolism caused by the gas entering the blood circulation of a patient is avoided, the safety of the hemodialysis process is ensured, and the quality of the dialysis treatment is improved.