CN113018550A - Portable heart failure dewatering device - Google Patents
Portable heart failure dewatering device Download PDFInfo
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- CN113018550A CN113018550A CN202110267283.6A CN202110267283A CN113018550A CN 113018550 A CN113018550 A CN 113018550A CN 202110267283 A CN202110267283 A CN 202110267283A CN 113018550 A CN113018550 A CN 113018550A
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- 206010019280 Heart failures Diseases 0.000 title claims abstract description 42
- 239000008280 blood Substances 0.000 claims abstract description 157
- 210000004369 blood Anatomy 0.000 claims abstract description 157
- 239000000706 filtrate Substances 0.000 claims abstract description 43
- 238000010241 blood sampling Methods 0.000 claims abstract description 39
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 25
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 25
- 239000011734 sodium Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000003146 anticoagulant agent Substances 0.000 claims abstract description 17
- 229940127219 anticoagulant drug Drugs 0.000 claims abstract description 17
- 230000018044 dehydration Effects 0.000 claims description 81
- 238000006297 dehydration reaction Methods 0.000 claims description 81
- 238000000108 ultra-filtration Methods 0.000 claims description 30
- 238000012544 monitoring process Methods 0.000 claims description 29
- 239000012528 membrane Substances 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 14
- 230000017531 blood circulation Effects 0.000 claims description 10
- 230000000630 rising effect Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims description 2
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- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 8
- 206010007556 Cardiac failure acute Diseases 0.000 description 7
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- 206010007559 Cardiac failure congestive Diseases 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3672—Means preventing coagulation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/369—Temperature treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/15—Detection of leaks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3368—Temperature
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- External Artificial Organs (AREA)
Abstract
The application discloses portable heart failure dewatering device includes: a box body with a volume smaller than a preset volume; the blood sampling assembly is arranged in the box body; the first conveying pipe, the second conveying pipe, the third conveying pipe and the fourth conveying pipe are arranged in the box body; the anticoagulant storage bag is arranged in the box body and is communicated with the blood sampling assembly through a first conveying pipe; the dehydrator is arranged in the box body, is communicated with the blood sampling assembly through a second conveying pipe and is used for separating the blood into sodium water and normal blood; the blood collecting pump is arranged in the box body, and the blood collecting pump is also arranged between the second conveying pipe and the dehydrator; the filtrate collecting component is arranged in the box body, is communicated with the dehydrator through a third conveying pipe and is used for collecting sodium water separated by the dehydrator; the blood transfusion component is arranged in the box body, is communicated with the dehydrator through a fourth conveying pipe and is used for returning the normal blood separated by the dehydrator to the human body; and the electric constant temperature component is arranged in the box body and is used for keeping the internal temperature of the box body constant to be the normal temperature of a human body.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to a portable heart failure dehydration device.
Background
Patients with heart failure (congestive heart failure) often have situations where the patient's fluid load (sodium retention) is too heavy, and therefore, safe and effective correction of sodium retention is one of the effective measures to treat heart failure.
The existing method for correcting the sodium water retention is to use hemodialysis equipment for treating renal failure to realize dehydration, thereby achieving the purpose of treating heart failure by ultrafiltration dehydration and correction of the sodium water retention.
However, the equipment used for dialysis is complex and not convenient enough, and dehydration can be performed only in a specific ward of a hospital, and if acute heart failure occurs, the safety risk of a patient can be increased in the process of going to the hospital.
Disclosure of Invention
In view of this, the present application provides a portable heart failure dehydration device to solve the problem that the existing equipment for heart failure dehydration can not conveniently dehydrate acute heart failure patients.
The application provides a portable heart failure dewatering device includes: a box body with a volume smaller than a preset volume; the blood sampling assembly is arranged in the box body; the first conveying pipe, the second conveying pipe, the third conveying pipe and the fourth conveying pipe are arranged in the box body; the anticoagulant storage bag is arranged in the box body and communicated with the blood sampling assembly through the first conveying pipe; the dehydrator is arranged in the box body, is communicated with the blood sampling assembly through the second conveying pipe and is used for filtering the blood collected by the blood sampling assembly and separating the blood into sodium water and normal blood; the blood sampling pump is arranged in the box body, and the blood sampling pump is also arranged between the second conveying pipe and the dehydrator and is used for collecting blood through the blood sampling assembly and pushing the blood to flow; the filtrate collecting assembly is arranged in the box body, is communicated with the dehydrator through the third conveying pipe and is used for collecting sodium water separated by the dehydrator; the blood transfusion component is arranged in the box body, is communicated with the dehydrator through the fourth conveying pipe and is used for returning the normal blood separated by the dehydrator to a human body; and the electric constant temperature component is arranged in the box body and is used for keeping the internal temperature of the box body constant to be the normal temperature of a human body.
Wherein, the dehydrator comprises: the dehydration bottle is arranged in the box body and is provided with a first opening, a second opening and a third opening, the first opening is arranged at the top of the dehydration bottle, the second opening is arranged on the side wall of the dehydration bottle, the third opening is positioned at the bottom of the dehydration bottle, the second conveying pipe is communicated with the dehydration bottle through the first opening, the third conveying pipe is communicated with the dehydration bottle through the second opening, and the fourth conveying pipe is communicated with the dehydration bottle through the third opening; the ultrafiltration membrane is arranged in the dehydration bottle, one end of the ultrafiltration membrane is arranged on the inner wall of the second opening close to the third opening, and the other end of the ultrafiltration membrane is higher than the second opening and is arranged below the first opening; the pressurizer is arranged in the dehydration bottle and used for driving blood to be separated into sodium water and normal blood through the ultrafiltration membrane, and the pressurizer is used for keeping the pressure in the dehydration bottle smaller than the pressure in the blood sampling assembly and larger than the pressure in the blood transfusion assembly and the filtrate collection assembly.
Wherein, the first opening is also positioned at one end of the top of the dewatering bottle close to the side wall; the projection of the second opening on the top of the dehydration bottle along the extension direction of the side wall and the first opening are respectively positioned at two ends of the top of the dehydration bottle.
Wherein, the ultrafiltration membrane is bent with a blood flow passage or provided with a bulge.
Wherein, portable heart failure dewatering device still includes: a pressure monitoring circuit and three first gas lines for monitoring pressure values within the blood collection assembly, the filtrate collection assembly and the blood transfusion assembly via the respective first gas lines; and the display screen is electrically connected with the pressure monitoring circuit and used for displaying the pressure value and is arranged outside the box body.
Wherein, portable heart failure dewatering device still includes: a temperature detection circuit, a pressure adjustment circuit and three second gas pipelines which are respectively communicated with the three first gas pipelines, the pressure adjusting circuit is electrically connected with the pressure monitoring circuit, the temperature detecting circuit is connected with the pressure monitoring circuit, the pressure monitoring circuit is used for detecting the pressure value of the corresponding component in a descending state, and calculating the descending difference value of the preset pressure-reducing standard value of the corresponding component and the pressure value, the temperature coefficient and the current temperature product value in the descending state detected in real time, the step-down difference value is used as a step-down difference value, if the step-down difference value is larger than a first preset difference value, a first control signal is output, the pressure regulating circuit is used for responding to the pressure monitoring circuit and pressurizing the corresponding component through a corresponding second gas pipeline and a corresponding first gas pipeline; the pressure monitoring circuit is further used for detecting the pressure value of the corresponding component in the rising state, calculating the sum of the pressure value, the temperature coefficient and the current temperature product value in the rising state detected in real time, then calculating the rising difference value of the sum and a preset corresponding component boosting standard value, the rising difference value is used as a boosting difference value, if the boosting difference value is larger than a second preset difference value, a second control signal is output, and the pressure adjusting circuit is used for responding to the pressure monitoring circuit and reducing the pressure of the corresponding component through a corresponding second gas pipeline and a corresponding first gas pipeline; the corresponding components are the blood sampling component, the filtrate collecting component or the blood transfusion component, and the preset pressure reduction standard value and the pressure increase standard value of the corresponding components of different components are different.
Wherein the electric thermostat assembly comprises: the heating pipe and the constant temperature circuit are used for automatically controlling the heating pipe to be powered on and powered off so as to keep the temperature in the box body.
Wherein, the blood sampling subassembly includes: a blood collection needle head; the blood collection needle is arranged in the box body and extends out of the box body through an opening of the box body, the blood collection needle is communicated with the anticoagulant storage bag through the first conveying pipe, and the blood collection needle is arranged outside the box body and is communicated with the blood collection pipeline; set up in the inside elastic hose of box, elastic hose's one end and heparin tube way intercommunication, the other end pass through the second conveyer pipe with take off the first opening intercommunication of water-jug, the blood sampling pump sets up elastic hose is last for provide through elastic hose and gather blood, promote the power that blood flows.
Wherein the filtrate collection assembly comprises: a filtrate delivery conduit in communication with the dehydration bottle through the third opening; the blood leakage monitor is arranged in the box body and is communicated with the dehydration bottle through the filtrate conveying pipeline; and the filtrate collecting bottle is arranged in the box body and is communicated with the blood leakage monitor through the third conveying pipeline.
Wherein, the blood transfusion subassembly includes: the blood conveying pipeline is arranged in the box body and is communicated with the dehydration bottle through the second opening; the blood transfusion bottle is arranged in the box body and is communicated with the dehydration bottle through the blood transfusion pipeline; the blood transfusion needle is arranged outside the box body and is communicated with the blood transfusion bottle through the fourth conveying pipe; the exhaust pipe is arranged on the blood transfusion bottle.
The above-mentioned portable heart failure dewatering device of this application sets up in being less than the box of predetermineeing the volume through the part of using various dehydration usefulness, can make the patient can conveniently carry portable case, or place portable case in the place that the patient often came in and go out, consequently when acute heart failure appears in the patient, the people around the patient can use foretell portable heart failure dewatering device to carry out urgent dehydration to the patient to strive for the time of rescue for the patient, consequently, the safety risk of the in-process that the acute heart failure patient went to the hospital has been reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a block diagram schematically illustrating the structure of a portable heart failure dehydration apparatus according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating the structure of a dehydrator of the portable heart failure dehydrating apparatus according to an embodiment of the present application;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is a schematic block diagram illustrating a connection structure of a blood collection assembly, a blood transfusion assembly, a dehydrator and a filtrate collection assembly of the portable heart failure dehydration apparatus according to the embodiment of the present application;
fig. 5 is a circuit diagram of a constant temperature circuit of an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application are clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application. The following embodiments and their technical features may be combined with each other without conflict.
Referring to fig. 1, a portable heart failure dehydrating device provided in an embodiment of the present application includes: the device comprises a box body 1, a blood sampling assembly 2, a first conveying pipe 3, an anticoagulant storage bag 4, a dehydrator 5, a filtrate collecting assembly 6, a blood transfusion assembly 7, an electric constant temperature assembly 8, a second conveying pipe 11, a third conveying pipe 12, a fourth conveying pipe 13 and a blood sampling pump 24; the box body 1 is smaller than the preset volume; the blood sampling assembly 2 is arranged in the box body 1, extends out of the box body 1 and is used for collecting venous blood of a patient; the first conveying pipe 3, the second conveying pipe 11, the third conveying pipe 12 and the fourth conveying pipe 13 are all arranged in the box body 1; the anticoagulant storage bag 4 is arranged inside the box body 1 and is communicated with the blood sampling assembly 2 through a first conveying pipe 3; the dehydrator 5 is arranged in the box body 1, is communicated with the blood sampling assembly 2 through a second conveying pipe 11, and is used for filtering the blood collected by the blood sampling assembly 2 and separating the blood into sodium water and normal blood; the blood collection pump 24 is arranged in the box body 1 and is also arranged between the second conveying pipe 11 and the dehydrator 5 and is used for collecting blood through the blood collection assembly 2 and pushing the blood to flow; the filtrate collecting assembly 6 is arranged in the box body 1, is communicated with the dehydrator 5 through a third conveying pipe 12 and is used for collecting sodium water separated by the dehydrator 5; one part of the blood transfusion component 7 is positioned inside the box body 1, and the other part is positioned outside the box body 1 and is communicated with the dehydrator 5 through a fourth conveying pipe 13, so that the normal blood separated by the dehydrator 5 can be returned to the human body; the electric constant temperature component 8 is arranged inside the box body 1 and used for keeping the temperature inside the box body 1 constant to be the normal temperature of a human body.
In this embodiment, the blood collection pump 24 may be of a pulley type, and in other embodiments, a turbine type may be used.
When the patient has acute heart failure, the blood sampling assembly 2 can be used for collecting venous blood of the patient from venous blood vessels, the blood sampling pump 24 provides blood sampling and power for promoting blood flow, after the venous blood is collected, anticoagulant in the anticoagulant storage bag 4 flows into the venous blood through the first conveying pipe 3, the venous blood is prevented from being coagulated, then in the box body 1, the venous blood flows into the dehydrator 5 through the second conveying pipe 11, the dehydrator 5 filters the venous blood, the venous blood is separated into sodium water and normal blood, the filtrate collecting assembly 6 collects the sodium water in the dehydrator 5 through the third conveying pipe 12, the blood transfusion assembly 7 recovers the normal blood in the dehydrator 5 through the fourth conveying pipe 13 and conveys the normal blood into the patient through the venous blood vessels of the patient, and dehydration is completed.
Foretell portable heart failure dewatering device sets up on box 1 through the part with various dehydration usefulness, can make the patient can conveniently carry box 1, or place box 1 in the place that the patient often came in and go out, consequently when acute heart failure appears in the patient, the people around the patient can use foretell portable heart failure dewatering device to carry out urgent dehydration to the patient to strive for the time of saving for the patient, consequently reduced the safety risk of the in-process that the patient of acute heart failure went to the hospital.
In some embodiments, the portable heart failure dehydration device further includes an operation guidance system, which is disposed outside the box body, and may be a guidance voice broadcast system or a guidance picture display system, and after receiving the user trigger information, correspondingly broadcasts an operation guidance voice or a guidance picture to guide the user to correctly use the portable heart failure dehydration device.
In this embodiment, first conveyer pipe 3 one end is located the inside of box 1, and the other end extends box 1, because the blood of gathering is gathered from blood collection component 2 outside box 1, consequently extends box 1 with the one end of first conveyer pipe 3, can add the anticoagulant in anticoagulant storage package 4 to venous blood in more time to the probability that venous blood coagulates has further been reduced. In other embodiments, the first delivery pipe 3 is located entirely inside the box body 1, so that the possibility of damage to the first delivery pipe 3 due to long-term exposure to the outside can be reduced.
In addition, the portable heart failure dehydrating device can keep the temperature in the box body 1 by using the electric constant temperature component 8, so that the temperature in the box body 1 can be kept to be the same as or similar to the temperature of a human body under the condition of cold weather, and the probability of blood coagulation in the box body 1 is further reduced.
Referring to fig. 2 and 3, in one embodiment, the dehydrator 5 includes: a dewatering bottle 51, an ultrafiltration membrane 55 and a pressurizer 56; the dewatering bottle 51 is arranged in the box body 1 and is provided with a first opening 52, a second opening 53 and a third opening 54, the first opening 52 is opened at the top of the dewatering bottle 51, the second opening 53 is opened at the side wall of the dewatering bottle 51, the third opening 54 is positioned at the bottom of the dewatering bottle 51, the second conveying pipe 11 is communicated with the dewatering bottle 51 through the first opening 52, the third conveying pipe 12 is communicated with the dewatering bottle 51 through the second opening 53, and the fourth conveying pipe 14 is communicated with the dewatering bottle 51 through the third opening 54; the ultrafiltration membrane 55 is arranged in the dewatering bottle 51, one end of the ultrafiltration membrane 55 is arranged on the inner wall of the second opening 53 close to the third opening 54, and the other end is higher than the second opening 53 and is arranged below the first opening 52; the pressure booster 56 is provided inside the dehydration bottle 51, and is used to drive the blood to be separated into sodium water and normal blood by the ultrafiltration membrane 55, and to keep the pressure inside the dehydration bottle 51 lower than the pressure inside the blood collection set 2 and higher than the pressure inside the blood transfusion set 7 and the filtrate collection set 6.
In this embodiment, the dehydration bottle 51 is vertically arranged inside the box body 1, when the venous blood enters the dehydration bottle 51 from the first opening 52, the venous blood falls on the ultrafiltration membrane 55, and under the action of gravity and the supercharger 56, part of sodium water in the venous blood passes through the ultrafiltration membrane 55, falls to the bottom of the dehydration bottle 51, and is collected by the filtrate collection assembly 6 through the third opening 54; while sodium water in the venous blood passes through the ultrafiltration membrane 55, the remaining blood flows on the ultrafiltration membrane 55 to the second opening 53, passes through the second opening 53, is collected by the transfusion set 7, and is transferred to the human body by the transfusion set 7, thereby completing dehydration.
Referring to fig. 3, in one embodiment, the first opening 52 is also located at the top of the dewatering bottle 51 near one end of the sidewall; the second opening 53 and the first opening 52 are also located at the two ends of the top of the dewatering bottle 51 respectively along the projection of the side wall extending direction on the top of the dewatering bottle 51.
The first opening 52 and the second opening 53 are arranged in such a way that the venous blood flows on the ultrafiltration membrane 55 and can flow through at least one diameter of one ultrafiltration bottle, so that the ultrafiltration membrane 55 has a better effect of filtering sodium water, and the portable heart failure dehydration device has a better dehydration effect.
In one embodiment, the ultrafiltration membrane 55 is bent or provided with a protrusion for the blood flow path.
In this embodiment, the ultrafiltration membrane 55 is provided with the protrusion, and the protrusion can prevent the venous blood from flowing through the ultrafiltration membrane 55 along a straight line, so that the flowing time of the venous blood on the ultrafiltration membrane 55 is increased, the effect of filtering sodium water by the ultrafiltration membrane 55 is better, and the dehydration effect of the portable heart failure dehydration device is better. In other embodiments, the blood flow channel at the bent position can also enable the venous blood to not flow through the ultrafiltration membrane 55 along a straight line, so that the flow time of the venous blood on the ultrafiltration membrane 55 is increased, the effect of filtering sodium water by the ultrafiltration membrane 55 is better, and the dehydration effect of the portable heart failure dehydration device is better.
Referring to fig. 1, in one embodiment, the portable heart failure dehydration apparatus further includes: the pressure monitoring circuit 9, the three first gas pipelines 15 and the display screen; the pressure monitoring circuit 9 is used for monitoring the pressure values in the blood collection assembly 2, the filtrate collection assembly 6 and the blood transfusion assembly 7 through corresponding first gas pipelines 15; the display screen is electrically connected with the pressure monitoring circuit 9, is used for displaying the pressure value, and is arranged outside the box body 1.
The pressure value in blood sampling subassembly 2, filtrating collection subassembly 6 and the blood transfusion subassembly 7 can real-time supervision by the setting of pressure monitoring circuit 9, and the setting of display screen then can show the real-time demonstration of above-mentioned pressure value to be convenient for observe the pressure value in blood sampling subassembly 2, filtrating collection subassembly 6 and the blood transfusion subassembly 7. In one embodiment, the pressure detection circuit includes: the pressure sensor, the preamplification circuit, the digital-to-analog conversion circuit and the processing display circuit; the pressure sensor is used for sensing pressure and generating an electric signal; the pre-amplification circuit is used for amplifying an electric signal generated by the pressure sensor, the analog-to-digital conversion circuit is used for converting the electric signal into a digital signal, and the processing and displaying circuit is used for displaying the digital signal on the display screen, so that pressure values in the blood sampling assembly 2, the filtrate collecting assembly 6 and the blood transfusion assembly 7 can be displayed in real time.
In one embodiment, the portable heart failure dehydration apparatus further comprises: the temperature detection circuit 17, the pressure adjustment circuit 15 and the three second gas pipelines 16, the pressure adjustment circuit 15 is electrically connected with the pressure monitoring circuit 9, the temperature detection circuit 17 is connected with the pressure monitoring circuit, the pressure monitoring circuit 9 is used for detecting the pressure value of the corresponding component in the descending state, and calculating the descending difference value of the preset descending standard value of the corresponding component, the pressure value, the temperature coefficient and the current temperature product value in the descending state detected in real time, the descending difference value is used as the descending difference value, if the descending difference value is greater than the first preset difference value, a first control signal is output, and the pressure adjustment circuit 15 is used for responding to the pressure monitoring circuit 9 to pressurize the corresponding component; the pressure detection circuit is further configured to detect a pressure value of the corresponding component in the rising state, calculate a sum of the pressure value, a temperature coefficient and a current temperature product value in the rising state detected in real time, and then calculate a rise difference between the sum and a preset corresponding component boosting standard value, where the rise difference is used as a boosting difference, and if the boosting difference is greater than a second preset difference, output a second control signal, and the pressure adjustment circuit 15 is configured to respond to the pressure monitoring circuit 9 to step down the corresponding component; the corresponding components are the blood sampling component, the filtrate collecting component or the blood transfusion component, and the preset pressure reduction standard value and the pressure increase standard value of the corresponding components of different components are different.
In this embodiment, a second gas pipeline 16 is correspondingly connected with a first gas pipeline 15, and the pressure adjusting circuit 15 adjusts the pressure in the first gas pipeline 15 through the second gas pipeline 16, so as to adjust the pressure in the corresponding component, and by using the pressure adjusting circuit 15, the pressure in the corresponding component can be adjusted in time when the pressure in the blood collection component 2, the filtrate collection component 6 or the blood transfusion component 7 abnormally rises or falls, so as to maintain the stability of dehydration, thereby further reducing the safety risk of the patient in the process of going to the hospital.
In one embodiment, the electric thermostat assembly 8 comprises: the heating pipe and the constant temperature circuit are used for automatically controlling the heating pipe to be powered on and powered off so as to keep the temperature in the box body 1.
After the portable heart failure dehydration device is powered on for use, the constant temperature circuit can control the heating pipe, if the temperature in the box body 1 is detected to be lower than the preset temperature, the heating pipe is controlled to heat, and when the temperature in the box body 1 is detected to be equal to the preset temperature, the heating pipe is controlled not to heat.
Referring to fig. 4, in the embodiment, the constant temperature circuit includes: the chip comprises a chip of 5S type, a first resistor R1, a second resistor R2, a thermistor Rt and a first capacitor C; a first pin of the chip is electrically connected with a first end of the first resistor R1 and a first end of the second resistor R2; the second pin is electrically connected with the second end of the first resistor R1 and the first end of the first capacitor C; the third pin is electrically connected with the first end of the first capacitor C; the fourth pin is electrically connected with the second end of the second resistor R2; the second end of the second resistor R2 is also electrically connected with the first end of the thermistor Rt; the second end of the thermistor Rt is electrically connected with the second end of the first capacitor C and the fifth pin of the chip; the second end of the first capacitor C is electrically connected with a fifth pin of the chip; and a sixth pin of the chip is electrically connected with the first end of the heating tube, and a seventh pin of the chip and the second end of the heating tube are connected with a power supply.
During the operation of the constant temperature circuit, the thermistor Rt is a positive temperature coefficient switch type thermistor. When the temperature does not reach the Curie point of the thermistor Rt, the resistance value of the Rt is very small, the fourth pin of the chip is in a low level, a circuit in the chip is switched on, and the heating pipe RL is electrified to work. Once the temperature rises to the curie point of the thermistor Rt, the resistance value of the thermistor Rt rises in a step mode, so that the potential of the fourth pin of the chip increases steeply, the internal circuit of the chip is turned off, and the heating pipe RL stops working. When the temperature drops below the Curie point of the thermistor Rt, the internal circuit of the chip is switched on again, and the heating pipe RL is electrified to work again. The cycle is repeated in such a way that the temperature is kept relatively constant. The Curie point of the thermistor Rt is the normal body temperature value of the human body.
Referring to fig. 4, in one embodiment, the blood collection assembly 2 includes: a blood collection needle 21, a blood collection tube 22 and an elastic tube 23; the blood sampling needle 21 is arranged outside the box body 1; the blood collection pipeline 22 is arranged inside the box body 1, extends out of the box body through an opening of the box body 1, is communicated with the anticoagulant storage bag 4 through the first conveying pipe 3, and the blood collection needle 21 is arranged outside the box body and is communicated with the blood collection pipeline 22; the flexible hose 23 is arranged inside the case 1, one end of the flexible hose is communicated with the blood collection pipeline 22, the other end of the flexible hose is communicated with the first opening 52 of the dehydration bottle 51 through the second conveying pipe 13, and the blood collection pump 24 is arranged on the flexible hose 23 and used for providing power for collecting blood and promoting the blood to flow through the flexible hose 23.
When blood is collected, the blood collecting needle 21 is pierced into a vein of a patient, then the blood collecting pump 24 operates to collect blood and promote blood to flow in each pipeline and assembly, and the collected venous blood sequentially passes through the blood collecting needle 21, the blood collecting pipeline 22, the elastic hose 23 and the second conveying pipe 13 and then enters the dehydrator 5.
In the embodiment, the flow range of the blood collected by the blood collecting pump 24 is 0-50 ml/min, and at the speed, the blood only accounts for 2% of the cardiac output in the circulation of collection, filtration and input, so that the adverse effect on the blood circulation of a human body is small and can be ignored.
With continued reference to fig. 4, in one embodiment, the filtrate collection assembly 6 includes: a filtrate conveying pipeline 61, a blood leakage monitor 62 and a filtrate collecting bottle 63; the filtrate conveying pipeline 61 is communicated with the dehydration bottle 51 through the third opening 54; the blood leakage monitor 62 is arranged in the box body 1 and is communicated with the dehydration bottle 51 through the filtrate conveying pipeline 61; the filtrate collecting bottle 63 is arranged in the box body 1 and is communicated with the blood leakage monitor 62 through a third conveying pipeline 14; in this embodiment the filtrate collection bottle 63 is located at the bottom of the tank 1.
When collecting sodium water, the sodium water enters the filtrate conveying pipeline 61 through the third opening 54 and enters the blood leakage monitor 62, and then enters the filtrate collecting bottle 63 through the third conveying pipe 14, because the pressure booster 56 exists in the dehydrator 5, the pressure in the dehydration bottle 51 is larger than the pressure in the filtrate collecting bottle 63, so that the separated sodium water can flow into the filtrate collecting bottle 63 under the pressure effect, and the filtrate collecting bottle 63 is arranged at the bottom of the box body 1, so that the flow of the sodium water into the filtrate collecting bottle 63 can be further promoted under the action of gravity. In other embodiments, the filtrate collection bottle 63 may be a glass vacuum bottle, such that the pressure difference between the dewatering bottle 51 and the filtrate collection bottle 63 may be increased to further facilitate the flow of sodium water into the filtrate collection bottle 63.
With continued reference to fig. 4, in one embodiment, transfusion assembly 7 includes: a blood transfusion channel 71, a blood transfusion bottle 72, a blood transfusion needle 73 and an exhaust pipe 74; the blood conveying pipeline 71 is communicated with the dehydration bottle 51 through the second opening 53; the blood transfusion bottle 72 is arranged on the blood transfusion pipeline 71; the blood transfusion needle 73 is arranged on the blood transfusion bottle 72; the vent tube 74 is disposed on the blood delivery bottle 72.
In this embodiment, the blood transfusion bottle 72 has four openings, a first opening is used to connect the blood transfusion bottle 72 and the dehydration bottle 51, a second opening is used to input the blood in the blood transfusion bottle 72 into the patient, a third opening is used to connect the pressure monitoring circuit 9 and the pressure adjusting circuit to the first gas pipe 15 connected by the second gas pipe 16, and a fourth opening is used to connect the exhaust pipe 74.
At the time of transfusion, normal blood flows from the second opening 53 into the blood transfusion tube 71, and then sequentially flows into the blood transfusion bottle 72 and the blood transfusion needle 73, thereby transfusing the patient.
Referring to fig. 1, in one embodiment, the portable heart failure dehydration apparatus further includes: the standby bin 10 is arranged outside the box body 1 and is used for storing the standby anticoagulant storage bag 4 and also used for storing the standby blood sampling needle 21, the blood transfusion needle 73 and the like.
The anticoagulant in the anticoagulant storage bag 4 is not enough to be used, the anticoagulant storage bag 4 in use can be replaced from the standby anticoagulant storage bag 4 in the standby bin 10, or the standby blood collection needle 21 and the standby blood transfusion needle 73 are used for replacement when the blood collection needle 21 and the blood transfusion needle 73 are damaged, so that the probability that some components of the portable heart failure dehydration device are damaged and cannot be used is reduced.
Although the application has been shown and described with respect to one or more implementations, equivalent alterations and modifications will occur to others skilled in the art based upon a reading and understanding of this specification and the annexed drawings. This application is intended to embrace all such modifications and variations and is limited only by the scope of the appended claims. In particular regard to the various functions performed by the above described components, the terms used to describe such components are intended to correspond, unless otherwise indicated, to any component which performs the specified function of the described component (e.g., that is functionally equivalent), even though not structurally equivalent to the disclosed structure which performs the function in the herein illustrated exemplary implementations of the specification.
That is, the above description is only an embodiment of the present application, and not intended to limit the scope of the present application, and all equivalent structures or equivalent flow transformations made by using the contents of the specification and the drawings, such as mutual combination of technical features between various embodiments, or direct or indirect application to other related technical fields, are included in the scope of the present application.
In addition, in the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be considered as limiting the present application. In addition, structural elements having the same or similar characteristics may be identified by the same or different reference numerals. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The previous description is provided to enable any person skilled in the art to make and use the present application. In the foregoing description, various details have been set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
Claims (10)
1. A portable heart failure dehydration engine, comprising:
a box body with a volume smaller than a preset volume;
the blood sampling assembly is arranged in the box body;
the first conveying pipe, the second conveying pipe, the third conveying pipe and the fourth conveying pipe are arranged in the box body;
the anticoagulant storage bag is arranged in the box body and communicated with the blood sampling assembly through the first conveying pipe;
the dehydrator is arranged in the box body, is communicated with the blood sampling assembly through the second conveying pipe and is used for filtering the blood collected by the blood sampling assembly and separating the blood into sodium water and normal blood;
the blood sampling pump is arranged in the box body, and the blood sampling pump is also arranged between the second conveying pipe and the dehydrator and is used for collecting blood through the blood sampling assembly and pushing the blood to flow;
the filtrate collecting assembly is arranged in the box body, is communicated with the dehydrator through the third conveying pipe and is used for collecting sodium water separated by the dehydrator;
the blood transfusion component is arranged in the box body, is communicated with the dehydrator through the fourth conveying pipe and is used for returning the normal blood separated by the dehydrator to a human body;
and the electric constant temperature component is arranged in the box body and is used for keeping the internal temperature of the box body constant to be the normal temperature of a human body.
2. The portable heart failure dehydration apparatus of claim 1,
the dehydrator includes:
the dehydration bottle is arranged in the box body and is provided with a first opening, a second opening and a third opening, the first opening is arranged at the top of the dehydration bottle, the second opening is arranged on the side wall of the dehydration bottle, the third opening is positioned at the bottom of the dehydration bottle, the second conveying pipe is communicated with the dehydration bottle through the first opening, the third conveying pipe is communicated with the dehydration bottle through the second opening, and the fourth conveying pipe is communicated with the dehydration bottle through the third opening;
the ultrafiltration membrane is arranged in the dehydration bottle, one end of the ultrafiltration membrane is arranged on the inner wall of the second opening close to the third opening, and the other end of the ultrafiltration membrane is higher than the second opening and is arranged below the first opening;
the pressurizer is arranged in the dehydration bottle and used for driving blood to be separated into sodium water and normal blood through the ultrafiltration membrane, and the pressurizer is used for keeping the pressure in the dehydration bottle smaller than the pressure in the blood sampling assembly and larger than the pressure in the blood transfusion assembly and the filtrate collection assembly.
3. The portable heart failure dehydration apparatus of claim 2,
the first opening is also positioned at one end of the top of the dewatering bottle close to the side wall;
the projection of the second opening on the top of the dehydration bottle along the extension direction of the side wall and the first opening are respectively positioned at two ends of the top of the dehydration bottle.
4. The portable heart failure dehydration apparatus of claim 2,
the ultrafiltration membrane is bent with a blood flow passage or provided with a bulge.
5. The portable heart failure dehydration apparatus of claim 1,
further comprising:
a pressure monitoring circuit and three first gas lines for monitoring pressure values within the blood collection assembly, the filtrate collection assembly and the blood transfusion assembly via the respective first gas lines;
and the display screen is electrically connected with the pressure monitoring circuit and used for displaying the pressure value and is arranged outside the box body.
6. The portable heart failure dehydration apparatus of claim 5,
further comprising: a temperature detection circuit, a pressure adjustment circuit and three second gas pipelines which are respectively communicated with the three first gas pipelines, the pressure adjusting circuit is electrically connected with the pressure monitoring circuit, the temperature detecting circuit is connected with the pressure monitoring circuit, the pressure monitoring circuit is used for detecting the pressure value of the corresponding component in a descending state, and calculating the descending difference value of the preset pressure-reducing standard value of the corresponding component and the pressure value, the temperature coefficient and the current temperature product value in the descending state detected in real time, the step-down difference value is used as a step-down difference value, if the step-down difference value is larger than a first preset difference value, a first control signal is output, the pressure regulating circuit is used for responding to the pressure monitoring circuit and pressurizing the corresponding component through a corresponding second gas pipeline and a corresponding first gas pipeline; the pressure monitoring circuit is further used for detecting the pressure value of the corresponding component in the rising state, calculating the sum of the pressure value, the temperature coefficient and the current temperature product value in the rising state detected in real time, then calculating the rising difference value of the sum and a preset corresponding component boosting standard value, the rising difference value is used as a boosting difference value, if the boosting difference value is larger than a second preset difference value, a second control signal is output, and the pressure adjusting circuit is used for responding to the pressure monitoring circuit and reducing the pressure of the corresponding component through a corresponding second gas pipeline and a corresponding first gas pipeline; the corresponding components are the blood sampling component, the filtrate collecting component or the blood transfusion component, and the preset pressure reduction standard value and the pressure increase standard value of the corresponding components of different components are different.
7. The portable heart failure dehydration apparatus of claim 1,
the electric thermostat assembly includes:
the heating pipe and the constant temperature circuit are used for automatically controlling the heating pipe to be powered on and powered off so as to keep the temperature in the box body.
8. The portable heart failure dehydration apparatus of claim 2,
the blood collection assembly includes:
a blood collection needle head;
the blood collection needle is arranged in the box body and extends out of the box body through an opening of the box body, the blood collection needle is communicated with the anticoagulant storage bag through the first conveying pipe, and the blood collection needle is arranged outside the box body and is communicated with the blood collection pipeline;
set up in the inside elastic hose of box, elastic hose's one end and heparin tube way intercommunication, the other end pass through the second conveyer pipe with take off the first opening intercommunication of water-jug, the blood sampling pump sets up elastic hose is last for provide through elastic hose and gather blood, promote the power that blood flows.
9. The portable heart failure dehydration apparatus of claim 2,
the filtrate collection assembly comprises:
a filtrate delivery conduit in communication with the dehydration bottle through the third opening;
the blood leakage monitor is arranged in the box body and is communicated with the dehydration bottle through the filtrate conveying pipeline;
and the filtrate collecting bottle is arranged in the box body and is communicated with the blood leakage monitor through the third conveying pipeline.
10. The portable heart failure dehydration apparatus of claim 2,
the blood transfusion assembly includes:
the blood conveying pipeline is arranged in the box body and is communicated with the dehydration bottle through the second opening;
the blood transfusion bottle is arranged in the box body and is communicated with the dehydration bottle through the blood transfusion pipeline;
the blood transfusion needle is arranged outside the box body and is communicated with the blood transfusion bottle through the fourth conveying pipe;
the exhaust pipe is arranged on the blood transfusion bottle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110267283.6A CN113018550A (en) | 2021-03-11 | 2021-03-11 | Portable heart failure dewatering device |
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| CN202110267283.6A CN113018550A (en) | 2021-03-11 | 2021-03-11 | Portable heart failure dewatering device |
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Application publication date: 20210625 |