CN109432527B - Hemodialysis filter for nephrology department - Google Patents

Abstract

The invention discloses a nephrology department hemodialysis filter, which comprises a dialysis tank and a sphygmomanometer, wherein the dialysis tank comprises a primary dialysis tank, a secondary dialysis tank and a tertiary dialysis tank, the primary dialysis tank, the secondary dialysis tank and the tertiary dialysis tank are sequentially connected end to end through connecting pipes, an inlet at the upper end of the primary dialysis tank is communicated with a blood inlet pipe, and a third circulating pump is connected in series inside the blood inlet pipe.

Description

Hemodialysis filter for nephrology department

Technical Field

The invention relates to the technical field of medical instruments, in particular to a hemodialysis filter for nephrology department.

Background

Hemodialysis is called hemodialysis for short, and is also called artificial kidney and kidney washing in popular terms, which is one of blood purification technologies. By using the principle of a semipermeable membrane, various harmful and redundant metabolic wastes and excessive electrolytes in the body are removed out of the body by diffusion, so as to achieve the purposes of purifying blood and correcting water electrolyte and acid-base balance.

There are an intermittent hemodialysis treatment and a continuous hemodialysis treatment, depending on the treatment method. Besides being applied to the replacement therapy of chronic renal failure, the medicine is also widely applied to acute renal failure, multiple organ failure, severe trauma, acute necrotizing pancreatitis, hyperkalemia, hypernatremia, acute alcoholism and the like caused by different reasons. Has certain significance for relieving the symptoms of patients and prolonging the life cycle, and is also one of effective measures for rescuing acute and chronic renal failure.

The hemodialysis filter for the nephrology department is a basic instrument for hemodialysis, the blood pressure of a patient can float in the hemodialysis process, most of the existing hemodialysis filters cannot correct the blood pressure, the patient can feel uncomfortable, and the hemodialysis filter for the nephrology department with the blood pressure correcting function is not found yet and needs to be further researched and developed.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the existing defects, and provide a hemodialysis filter for nephrology department, which is characterized in that the blood pressure of a user is detected in real time by adding a sphygmomanometer, and the hemodialysis speed is automatically controlled, so that the influence of dialysis on the blood pressure of the user is reduced, meanwhile, a second Hall sensor is arranged inside the hemodialysis filter, the blood return speed is detected, meanwhile, the reasonable proportion of replacement liquid is realized by controlling the first circulating pump to work, and an exhaust tank is added, so that gas is effectively prevented from entering blood, and the problems in the background technology can be effectively solved.

In order to achieve the purpose, the invention provides the following technical scheme: a hemodialysis filter for nephrology department comprises a dialysis tank and a sphygmomanometer, wherein the dialysis tank comprises a first-stage dialysis tank, a second-stage dialysis tank and a third-stage dialysis tank, the first-stage dialysis tank, the second-stage dialysis tank and the third-stage dialysis tank are sequentially connected end to end through connecting pipes, and the inlet at the upper end of the first-stage dialysis tank is communicated with a blood inlet pipe, the interior of the blood inlet pipe is connected with a third circulating pump in series, the outlet at the lower end of the third-stage dialysis tank is communicated with the inlet at the lower end of the exhaust tank through a connecting pipe, the outlet at the lower end of the exhaust tank is provided with a blood outlet pipe, a second Hall sensor is sleeved outside a connecting pipe between the third-stage dialysis tank and the exhaust tank, a first Hall sensor is sleeved outside the blood outlet pipe, the output ends of the first Hall sensor and the second Hall sensor are electrically connected with the input end of the singlechip, the input end of the circulating pump III is electrically connected with the output end of the single chip microcomputer, and the input end of the single chip microcomputer is electrically connected with the output end of the external power supply;

the output end of the sphygmomanometer is electrically connected with the input end of the single chip microcomputer through a lead.

As a preferred technical scheme of the invention, the dialysis tank comprises a tank body, wherein two ends of the tank body are respectively provided with a cover body in a matching way, the surface of the cover body is provided with a mounting hole, the mounting hole is matched and mounted with a connecting pipe, and the cover body and two ends of the tank body form a detention cavity.

As a preferred technical scheme of the invention, the tank body is of a hollow structure, the detention cavities at two ends of the tank body are communicated through a semi-permeable membrane tube, and the semi-permeable membrane tube is fixedly arranged in the tank body.

As a preferred technical scheme of the invention, the lower end of the internal space of the tank body is communicated with a dialysate input pipe through a bent pipe, the upper end of the internal space of the tank body is communicated with a dialysate output pipe through a bent pipe, the dialysate input pipe is communicated with an external dialysate storage container through a second circulating pump, the dialysate output pipe is communicated with a waste dialysate storage container, and the input end of the second circulating pump is electrically connected with the output end of the single chip microcomputer.

As a preferred technical scheme of the invention, the upper end of the exhaust tank is provided with an exhaust hole, the exhaust hole is provided with a vacuum pump, the side edge of the exhaust tank is provided with a liquid inlet, the liquid inlet is communicated with a replacement liquid storage tank through a first circulating pump, and the input ends of the vacuum pump and the first circulating pump are electrically connected with the output end of the singlechip.

Compared with the prior art, the invention has the beneficial effects that: this nephrology dept hemodialysis filter carries out real-time detection to user's blood pressure through the mode that increases the sphygmomanometer to automatic control hemodialysis speed, thereby reduce the influence of dialysis to user's blood pressure, inside hall sensor two that sets up simultaneously detects blood return speed, works through control circulating pump one simultaneously, realizes the reasonable ratio of replacement liquid, and adds the exhaust can, effectively avoids gaseous entering blood.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the vent tank assembly of the present invention;

FIG. 3 is a schematic view of a dialysis canister according to the present invention.

In the figure: 1 dialysis tank, 2 connecting pipes, 3 replacement fluid storage tanks, 4 circulating pumps I, 5 Hall sensors I, 6 blood outlet pipes, 7 Hall sensors II, 8 circulating pumps II, 9 dialysate input pipes, 10 dialysate output pipes, 11 circulating pumps III, 12 sphygmomanometer, 13 single chip microcomputer, 14 exhaust tanks, 15 cover bodies, 16 semi-permeable membrane pipes and 17 vacuum pumps.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a hemodialysis filter for nephrology department comprises adialysis tank 1 and asphygmomanometer 12, wherein thedialysis tank 1 comprises a first-stage dialysis tank, a second-stage dialysis tank and a third-stage dialysis tank which are sequentially connected end to end through a connectingpipe 2, an inlet at the upper end of the first-stage dialysis tank is communicated with a blood inlet pipe, a circulating pump III 11 is connected in series inside the blood inlet pipe, an outlet at the lower end of the third-stage dialysis tank is communicated with an inlet at the lower end of anexhaust tank 14 through a connectingpipe 2, ablood outlet pipe 6 is arranged at an outlet at the lower end of theexhaust tank 14, a Hall sensor II 7 is sleeved outside the connectingpipe 2 between the third-stage dialysis tank and theexhaust tank 14, a Hall sensor I5 is sleeved outside theblood outlet pipe 6, output ends of the Hall sensor I5 and the Hall sensor II 7 are electrically connected with an input end of asingle chip microcomputer 13, an input end of the circulating pump III 11 is;

the output end of thesphygmomanometer 12 is electrically connected with the input end of thesinglechip 13 through a lead;

thedialysis tank 1 comprises a tank body, wherein two ends of the tank body are respectively provided with acover body 15 in a matching way, the surface of thecover body 15 is provided with a mounting hole, the mounting hole is matched and mounted with the connectingpipe 2, and thecover body 15 and two ends of the tank body form a detention cavity;

the tank body is of a hollow structure, the detention cavities at the two ends of the tank body are communicated through asemi-permeable membrane tube 16, and thesemi-permeable membrane tube 16 is fixedly arranged in the tank body;

the lower end of the internal space of the tank body is communicated with adialysate input pipe 9 through a bent pipe, the upper end of the internal space of the tank body is communicated with adialysate output pipe 10 through a bent pipe, thedialysate input pipe 9 is communicated with an external dialysate storage container through a second circulatingpump 8, thedialysate output pipe 10 is communicated with a waste dialysate storage container, and the input end of the second circulatingpump 8 is electrically connected with the output end of thesingle chip microcomputer 13;

an exhaust hole is formed in the upper end of theexhaust tank 14, avacuum pump 17 is arranged at the exhaust hole, a liquid inlet is formed in the side edge of theexhaust tank 14 and is communicated with the replacementliquid storage tank 3 through a circulating pump I4, and the input ends of thevacuum pump 17 and the circulating pump I4 are electrically connected with the output end of thesingle chip microcomputer 13;

thesingle chip microcomputer 13 is a Siemens 6ES7216-2AD23-0XB8 type PLC controller, and the mode that thesingle chip microcomputer 13 controls the first circulatingpump 4, thefirst Hall sensor 5, thesecond Hall sensor 7, the second circulatingpump 8, the third circulatingpump 11, thesphygmomanometer 12 and thevacuum pump 17 is a common mode in the prior art.

When in use: thesphygmomanometer 12 detects the blood pressure of the user and transmits the detected data to thesingle chip microcomputer 13, meanwhile, the Hall sensor I5 detects the blood return speed in theblood outlet pipe 6, the flow speed is transmitted to thesingle chip microcomputer 13, thesingle chip microcomputer 13 controls the working state of the circulating pump III 11 according to the blood pressure and the blood return speed of a user, the blood drawing speed is adjusted, the influence on the blood pressure of the user is reduced, the uncomfortable feeling caused by dialysis is reduced, meanwhile, thesingle chip microcomputer 13 adjusts the working efficiency of the circulating pump II 8 according to the blood return speed, thereby controlling the dialysis degree of the dialysate and the blood, detecting the blood flow speed in the connectingpipe 2 by the Hall sensor II 7, controlling the working state of the circulating pump I4, realizing the reasonable proportion of the replacement fluid, during the ventilation process, the gas in the pipeline is gathered at the top of theexhaust tank 14, and is exhausted by thevacuum pump 17, so that the gas is prevented from entering the body.

The invention detects the blood pressure of a user in real time by adding thesphygmomanometer 12 and automatically controls the hemodialysis speed, thereby reducing the influence of dialysis on the blood pressure of the user, meanwhile, the Hall sensor II 7 is arranged in the blood return speed, the reasonable proportion of replacement fluid is realized by controlling the circulating pump I4 to work, and theexhaust tank 14 is added, thereby effectively preventing gas from entering the blood.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (2)

1. A nephrology department hemodialysis filter, includes dialysis tank (1) and sphygmomanometer (12), its characterized in that: the dialysis tank (1) comprises a first-stage dialysis tank, a second-stage dialysis tank and a third-stage dialysis tank, the first-stage dialysis tank, the second-stage dialysis tank and the third-stage dialysis tank are sequentially connected end to end through a connecting pipe (2), an upper end inlet of the first-stage dialysis tank is communicated with a blood inlet pipe, a circulating pump III (11) is connected in series inside the blood inlet pipe, an outlet at the lower end of the third-stage dialysis tank is communicated with an inlet at the lower end of an exhaust tank (14) through the connecting pipe (2), a blood outlet pipe (6) is arranged at an outlet at the lower end of the exhaust tank (14), a Hall sensor II (7) is sleeved outside the connecting pipe (2) between the third-stage dialysis tank and the exhaust tank (14), a sensor I (5) is sleeved outside the blood outlet pipe (6), the output ends of the Hall sensor I (5) and the Hall sensor II (7) are electrically connected with the input end of, the input end of the singlechip (13) is electrically connected with the output end of the external power supply;

the output of sphygmomanometer (12) passes through the wire and is connected with the input electricity of singlechip (13), dialysis tank (1) is including a jar body, jar body both ends cooperate installation lid (15) respectively, lid (15) surface is provided with the mounting hole, the mounting hole is installed with connecting pipe (2) cooperation, and lid (15) and the both ends of the jar body form the chamber of being detained, the inner space lower extreme of the jar body passes through the return bend and communicates with dislysate input tube (9), and the inner space upper end of the jar body passes through the return bend and communicates with dislysate output tube (10), dislysate input tube (9) communicate with external dislysate storage container through circulating pump two (8), dislysate output tube (10) and abandonment dislysate storage container intercommunication, the input of circulating pump two (8) is connected with the output electricity of singlechip (13), the upper end of exhaust tank (14) sets up the exhaust hole, the exhaust hole is provided with a vacuum pump (17), the side edge of the exhaust tank (14) is provided with a liquid inlet, the liquid inlet is communicated with the replacement liquid storage tank (3) through a first circulating pump (4), and the input ends of the vacuum pump (17) and the first circulating pump (4) are electrically connected with the output end of the single chip microcomputer (13).

2. The nephrology hemodialysis filter of claim 1, wherein: the internal hollow structure of jar, and the chamber of detaining at jar body both ends passes through semi-permeable membrane pipe (16) intercommunication, semi-permeable membrane pipe (16) fixed mounting is in jar internal portion.

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