CN116255558A - Gas cylinder for peritoneal dialysis machine, aerodynamic device and peritoneal dialysis machine - Google Patents

Gas cylinder for peritoneal dialysis machine, aerodynamic device and peritoneal dialysis machine Download PDF

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Publication number
CN116255558A
CN116255558A CN202310176982.9A CN202310176982A CN116255558A CN 116255558 A CN116255558 A CN 116255558A CN 202310176982 A CN202310176982 A CN 202310176982A CN 116255558 A CN116255558 A CN 116255558A
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CN
China
Prior art keywords
air
electromagnetic valve
cavity
air inlet
communicated
Prior art date
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Pending
Application number
CN202310176982.9A
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Chinese (zh)
Inventor
王舜尧
杨绿野
王洪利
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Beijing Sunny Medical Technology Co ltd
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Beijing Sunny Medical Technology Co ltd
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Application filed by Beijing Sunny Medical Technology Co ltd filed Critical Beijing Sunny Medical Technology Co ltd
Priority to CN202310176982.9A priority Critical patent/CN116255558A/en
Publication of CN116255558A publication Critical patent/CN116255558A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • 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
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/02—Applications for medical applications

Abstract

The invention relates to a gas cylinder for a peritoneal dialysis machine, a gas dynamic device and the peritoneal dialysis machine, wherein the gas cylinder comprises a cylinder body and a cover body, and the cylinder body is provided with: the air inlet channel, the large positive pressure air cavity, the air inlet holes of the liquid path control electromagnetic valves, the air outlet holes of the liquid path control electromagnetic valves, the large negative pressure air cavity, the air return channel, the small positive pressure air cavity, the left pump chamber channel, the right pump chamber channel and the small negative pressure air cavity are mutually independent, and the cover body forms sealing closure for the large positive pressure air cavity, the large negative pressure air cavity, the small positive pressure air cavity and the small negative pressure air cavity respectively. The gas cylinder for the peritoneal dialysis machine, the aerodynamic device and the peritoneal dialysis machine can overcome the defects that an existing confluence plate is complex in structure and high in gas leakage risk is caused by connection of the gas cylinder and the confluence plate through a gas pipe.

Description

Gas cylinder for peritoneal dialysis machine, aerodynamic device and peritoneal dialysis machine
Technical Field
The invention relates to the field of peritoneal dialysis, in particular to a gas cylinder for a peritoneal dialysis machine, a gas dynamic device and the peritoneal dialysis machine.
Background
Automated peritoneal dialysis is an important means for kidney replacement therapy, and is increasingly attracting attention because of the advantages of convenient use, flexible dialysis dosage, strong small molecule solute removal capability, good social regression of patients and the like. Peritoneal dialysis machines are the core devices or equipment that enable automated peritoneal dialysis treatment. The existing peritoneal dialysis machines can be divided into pressure control type, gravity control type and mixed control type according to the power sources of filling and leading out, and the existing clinical common machine type is pressure control type. The existing pressure control type or mixed control type peritoneal dialysis instrument electromagnetic valve group is separated from the gas cylinder, namely, gas in the gas cylinder enters an independent confluence plate, a complex gas path structure is arranged in the confluence plate, the electromagnetic valve group is arranged on the confluence plate, and the gas cylinder passes through each electromagnetic valve after passing through a gas path of the confluence plate to control on-off of each liquid path of peritoneal dialysis, so that the peritoneal dialysis instrument operates. The machining of the manifold plate is very complex, which results in a high cost solenoid valve block. In addition, as the confluence plate is separated from the gas cylinder, the confluence plate and the gas cylinder are connected by the connector and the gas pipe, and the gas circuit connector and the gas pipe are increased, so that the processing cost is increased, and the risk of gas leakage of the gas circuit is increased.
Disclosure of Invention
The invention provides a gas cylinder for a peritoneal dialysis machine, which can overcome the defects that the existing bus plate structure is complex, and the gas leakage risk is high due to the fact that the gas cylinder is connected with the bus plate through a gas pipe.
The invention relates to a gas cylinder for a peritoneal dialysis machine, which comprises a cylinder body and a cover body, wherein the cylinder body is provided with:
the air inlet channel is used for communicating with the positive pressure end of the air pump;
a large positive pressure air cavity;
one end of the air inlet hole of the large positive pressure air cavity air inlet electromagnetic valve is connected with the air inlet channel, and the other end of the air inlet hole is connected with the I port of the large positive pressure air cavity air inlet electromagnetic valve;
one end of the air outlet hole of the large positive pressure air cavity air inlet electromagnetic valve is connected with the II port of the large positive pressure air cavity air inlet electromagnetic valve, and the other end of the air outlet hole is connected with the large positive pressure air cavity;
the large positive pressure air channel is communicated with the large positive pressure air cavity;
one end of the air inlet holes of the liquid path control electromagnetic valves is respectively communicated with the large positive air pressure channel, and the other end of the air inlet holes of the liquid path control electromagnetic valves is connected with the I ports of the liquid path control electromagnetic valves in a one-to-one correspondence manner;
the atmosphere negative pressure channel is connected with the III ports of the liquid path control electromagnetic valves;
one ends of the air outlet holes of the liquid path control electromagnetic valves are respectively communicated with the atmospheric pressure channels, and the other ends of the air outlet holes of the liquid path control electromagnetic valves are connected with the III ports of the liquid path control electromagnetic valves in a one-to-one correspondence manner;
The large negative pressure air cavity is communicated with the large negative pressure channel;
one end of the air return channel is communicated with the negative pressure end of the air pump;
one end of the air inlet hole of the air return electromagnetic valve of the large negative pressure air cavity is communicated with the large negative pressure air cavity, and the other end of the air inlet hole is connected with the II port of the air return electromagnetic valve of the large negative pressure air cavity;
one end of the air outlet hole of the air return electromagnetic valve of the large negative pressure air cavity is connected with the III port of the air return electromagnetic valve of the large negative pressure air cavity, and the other end of the air outlet hole is communicated with the air return channel;
a small positive pressure air cavity;
one end of the air inlet hole of the small positive pressure air cavity air inlet electromagnetic valve is connected with the air inlet channel, and the other end of the air inlet hole is connected with the I port of the small positive pressure air cavity air inlet electromagnetic valve;
one end of the air outlet hole of the small positive pressure air cavity air inlet electromagnetic valve is connected with the II port of the small positive pressure air cavity air inlet electromagnetic valve, and the other end of the air outlet hole is connected with the small positive pressure air cavity;
a left pump chamber channel for communicating with a driver that drives a membrane of a left pump chamber of the liquid pump;
a right pump chamber channel for communicating with a driver that drives a membrane of a right pump chamber of the liquid pump;
one end of the air inlet hole of the first electromagnetic valve is connected with the small positive pressure air cavity, and the other end of the air inlet hole is connected with the first electromagnetic opening of the air outlet of the small positive pressure air cavity;
One end of the air outlet hole of the first air outlet electromagnetic valve of the small positive pressure air cavity is connected with the II port of the air outlet first electromagnetic valve of the small positive pressure air cavity, and the other end of the air outlet hole is communicated with the left pump chamber channel;
one end of the air inlet hole of the second electromagnetic valve is connected with the small positive pressure air cavity, and the other end of the air inlet hole is connected with the I port of the second electromagnetic valve;
one end of the air outlet hole of the second electromagnetic valve is connected with the second electromagnetic port of the air outlet of the small positive pressure air cavity, and the other end of the air outlet hole is communicated with the right pump chamber channel;
a small negative pressure air cavity;
one end of the air inlet hole of the first air inlet electromagnetic valve of the small negative pressure air cavity is communicated with the left pump chamber channel, and the other end of the air inlet hole is connected with the II port of the first air inlet electromagnetic valve of the small negative pressure air cavity;
one end of the air outlet hole of the small negative pressure air cavity air inlet first electromagnetic valve is connected with the III port of the small negative pressure air cavity air inlet first electromagnetic valve, and the other end of the air outlet hole is communicated with the small negative pressure air cavity;
one end of the air inlet hole of the second air inlet electromagnetic valve of the small negative pressure air cavity is communicated with the right pump chamber channel, and the other end of the air inlet hole of the second air inlet electromagnetic valve of the small negative pressure air cavity is connected with the II port of the second air inlet electromagnetic valve of the small negative pressure air cavity;
one end of the air outlet hole of the second electromagnetic valve is connected with the III port of the second electromagnetic valve, and the other end of the air outlet hole is communicated with the small negative pressure air cavity;
One end of the air inlet hole of the small negative pressure air cavity air return electromagnetic valve is communicated with the small negative pressure air cavity, and the other end of the air inlet hole is connected with the II port of the small negative pressure air cavity air return electromagnetic valve;
one end of the air outlet hole of the small negative pressure air cavity air return electromagnetic valve is connected with the III port of the small negative pressure air cavity air return electromagnetic valve, and the other end of the air outlet hole is communicated with the air return channel;
the large positive pressure air cavity, the large negative pressure air cavity, the small positive pressure air cavity and the small negative pressure air cavity are mutually independent, and the cover body forms sealing closure for the large positive pressure air cavity, the large negative pressure air cavity, the small positive pressure air cavity and the small negative pressure air cavity respectively.
Preferably, the gas cylinder further comprises a large positive pressure air cavity air inlet electromagnetic valve, a plurality of liquid path control electromagnetic valves, a large negative pressure air cavity air return electromagnetic valve, a small positive pressure air cavity air inlet electromagnetic valve, a small positive pressure air cavity air outlet first electromagnetic valve, a small positive pressure air cavity air outlet second electromagnetic valve, a small negative pressure air cavity air inlet first electromagnetic valve, a small negative pressure air cavity air inlet second electromagnetic valve and a small negative pressure air cavity air return electromagnetic valve, and the gas cylinder further comprises a circuit board arranged on the cylinder body, wherein the circuit board is provided with controllers which are respectively connected with the electromagnetic valves and the air pump so as to control the electromagnetic valves and the air pump.
Preferably, the gas cylinder is further provided with:
One end of the air inlet hole of the high-pressure cavity air inlet electromagnetic valve is communicated with the air inlet channel, and the other end of the air inlet hole is communicated with the I port of the high-pressure cavity air inlet electromagnetic valve;
one end of the air outlet hole of the high-pressure cavity air inlet electromagnetic valve is communicated with the II port of the high-pressure cavity air inlet electromagnetic valve, and the other end of the air outlet hole is communicated with the high-pressure cavity;
one end of the air inlet hole of the first air outlet electromagnetic valve of the high-pressure cavity is communicated with the high-pressure cavity, and the other end of the air inlet hole is communicated with the I port of the first air outlet electromagnetic valve of the high-pressure cavity;
one end of the air outlet hole of the high-pressure cavity air outlet first electromagnetic valve is communicated with the II port of the high-pressure cavity air outlet first electromagnetic valve, and the other end of the air outlet hole is communicated with the left pump chamber channel;
one end of the air inlet hole of the high-pressure cavity air outlet second electromagnetic valve is communicated with the high-pressure cavity, and the other end of the air inlet hole is communicated with the I port of the high-pressure cavity air outlet second electromagnetic valve;
one end of the air outlet hole of the high-pressure cavity air outlet second electromagnetic valve is communicated with the II port of the high-pressure cavity air outlet second electromagnetic valve, and the other end of the air outlet hole is communicated with the right pump chamber channel.
The gas cylinder further comprises a high-pressure cavity gas inlet electromagnetic valve, a high-pressure cavity gas outlet first electromagnetic valve and a high-pressure cavity gas outlet second electromagnetic valve, and the high-pressure cavity gas inlet electromagnetic valve, the high-pressure cavity gas outlet first electromagnetic valve and the high-pressure cavity gas outlet second electromagnetic valve are respectively connected with the circuit board.
Preferably, the gas cylinder is further provided with air inlets of two air bag electromagnetic valves, one end of each air inlet of each air bag electromagnetic valve is communicated with the air inlet channel, and the other end of each air inlet of each air bag electromagnetic valve is communicated with an I port of each air bag electromagnetic valve. The gas cylinder further comprises two air bag electromagnetic valves, and the two air bag electromagnetic valves are respectively connected with the circuit board.
Preferably, the gas cylinder is further provided with:
one end of the air outlet hole of the air inlet electromagnetic valve of the air inlet channel is communicated with the air return channel, and the other end of the air outlet hole is communicated with the III port of the air inlet electromagnetic valve of the air inlet channel;
one end of the air inlet hole of the air inlet channel air outlet electromagnetic valve is communicated with the air inlet channel, and the other end of the air inlet hole is communicated with the I port of the air inlet channel air outlet electromagnetic valve.
The gas cylinder further comprises the air inlet electromagnetic valve of the air inlet channel and the air outlet electromagnetic valve of the air inlet channel, the air inlet electromagnetic valve of the air inlet channel and the air outlet electromagnetic valve of the air inlet channel are respectively connected with the circuit board, the II port of the air inlet electromagnetic valve of the air inlet channel is communicated with the atmosphere, and the II port of the air outlet electromagnetic valve of the air inlet channel is communicated with the atmosphere.
Preferably, the gas cylinder is further provided with:
one end of the air inlet hole of the left pump chamber atmospheric electromagnetic valve is communicated with the left pump chamber channel, and the other end of the air inlet hole is communicated with the II port of the left pump chamber atmospheric electromagnetic valve;
One end of the air inlet hole of the right pump chamber atmospheric electromagnetic valve is communicated with the right pump chamber channel, and the other end is communicated with the II port of the right pump chamber atmospheric electromagnetic valve.
The gas cylinder also comprises a left pump chamber atmospheric electromagnetic valve and a right pump chamber atmospheric electromagnetic valve, wherein an I port of the left pump chamber atmospheric electromagnetic valve is communicated with the atmosphere, an I port of the right pump chamber atmospheric electromagnetic valve is communicated with the atmosphere, and the left pump chamber atmospheric electromagnetic valve and the right pump chamber atmospheric electromagnetic valve are respectively connected with the circuit board.
Preferably, the large negative pressure air cavity, the large positive pressure air cavity, the small positive pressure air cavity and the small negative pressure air cavity are arranged in parallel and in sequence. At least one reinforcing rib is arranged in each of the large negative pressure air cavity, the large positive pressure air cavity, the small positive pressure air cavity and the small negative pressure air cavity, the reinforcing rib is perpendicular to the length direction of each air cavity, one end of the reinforcing rib is connected with the inner wall of one side of each air cavity, and the other end of the reinforcing rib is connected with the inner wall of the opposite side of each air cavity.
Preferably, the number of the liquid path control solenoid valves is 10.
The invention also provides a gas power device which comprises the gas pump and the gas cylinder, wherein the positive pressure end of the gas pump is communicated with the gas inlet channel of the gas cylinder, and the negative pressure end of the gas pump is communicated with the gas return channel of the gas cylinder.
The present invention also provides a peritoneal dialysis machine comprising a fluid line apparatus and a aerodynamic apparatus as claimed in claim 14, the aerodynamic apparatus controlling the on and off of the channels of each fluid line of the fluid line apparatus.
Compared with the prior art, the invention has the following beneficial effects:
1. the air cylinder for the peritoneal dialysis machine is characterized in that the large positive pressure air cavity, the large negative pressure air cavity, the small positive pressure air cavity and the small negative pressure air cavity are all arranged on the air cylinder, and all channels and air inlets and air outlets for connecting and installing all the electromagnetism are processed on the air cylinder, so that the electromagnetic valve can be directly installed on the air cylinder without a bus plate, the functions of the existing air cylinder and bus plate can be realized, the structure is simpler and more compact, the occupied volume is smaller, and an air pipe is not required to be arranged between the air cylinder and the bus plate, thereby reducing the probability of gas leakage.
2. The gas cylinder for the peritoneal dialysis machine integrates the large positive pressure gas cavity, the large negative pressure gas cavity, the small positive pressure gas cavity, the small negative pressure gas cavity, all the electromagnetic valves and the circuit board into one module, so that the confluence plate is reduced, and the cost rise caused by the separation of the gas cylinder and the electromagnetic valves in the prior art is reduced.
Drawings
Fig. 1 is a schematic structural view of a gas cylinder for a peritoneal dialysis machine according to an embodiment of the present invention.
Fig. 2 is a schematic view of a gas cylinder for a peritoneal dialysis machine and the structure of each solenoid valve mounted to the gas cylinder according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of each solenoid valve of the gas cylinder for the peritoneal dialysis machine according to an embodiment of the present invention.
Fig. 4 is a schematic perspective view of a cylinder body of a gas cylinder for a peritoneal dialysis machine according to an embodiment of the present invention, the cylinder body being inverted with respect to fig. 1.
Fig. 5 is a schematic top view of a gas cylinder for a peritoneal dialysis machine according to an embodiment of the present invention.
Fig. 6 is a schematic cross-sectional view of a gas cylinder for a peritoneal dialysis machine according to an embodiment of the invention, taken along line L-L in fig. 5.
Fig. 7 is a schematic cross-sectional view of a gas cylinder for a peritoneal dialysis machine according to an embodiment of the present invention, taken along line H-H of fig. 5.
Fig. 8 is a schematic cross-sectional view of a gas cylinder for a peritoneal dialysis machine according to an embodiment of the invention, taken along line I-I in fig. 5.
Fig. 9 is a schematic cross-sectional view of a gas cylinder for a peritoneal dialysis machine according to an embodiment of the invention, taken along the line J-J in fig. 5.
Fig. 10 is a schematic cross-sectional view of a gas cylinder for a peritoneal dialysis machine according to an embodiment of the invention, taken along the line K-K in fig. 5.
Fig. 11 is a schematic view of the pneumatic principle for the peritoneal dialysis machine according to one embodiment of the present invention.
Reference numerals
The bottle comprises a bottle body A, a first pump joint hole A1, a first pump joint A2, a second pump joint hole A3, a second pump joint A4, a reinforcing rib A5, a pagoda joint A6, an air filtering column A7, an A8 mounting boss, an A9 pressure measuring through hole, an A10 atmospheric through hole, an A11 load hole and an A12 boss;
a cover body B;
c, sealing gaskets;
a D circuit board;
11 large positive pressure air cavity, 12 large negative pressure air cavity, 13 small positive pressure air cavity, 14 small negative pressure air cavity,
15 air inlet channel, 16 air return channel, 17 positive air pressure channel, 18 negative air pressure channel, 19 left pump chamber channel, 1a right pump chamber channel;
a 21-size negative pressure air cavity air return electromagnetic valve,
22 an air inlet channel air inlet electromagnetic valve,
23 an air outlet electromagnetic valve of an air inlet channel,
an air inlet electromagnetic valve of a 24-big positive pressure air cavity,
25,26 air bag solenoid valves,
27 high-pressure chamber air inlet electromagnetic valve,
a 28-small negative pressure air cavity air return electromagnetic valve,
an air inlet electromagnetic valve of a 29-small positive pressure air cavity,
210 a first solenoid valve for venting the high pressure chamber,
the 211 small positive pressure air cavity is provided with a first electromagnetic valve,
212 a left pumping chamber atmospheric solenoid valve,
213 small negative pressure air cavity air inlet first electromagnetic valve,
214 small negative pressure air cavity air inlet second electromagnetic valve,
215 a right pumping chamber atmospheric solenoid valve,
A second electromagnetic valve for exhausting air from the 216-small positive-pressure air cavity,
217 the high pressure chamber vents a second solenoid valve,
218-227 liquid paths control solenoid valves,
an air outlet hole of the K21 large negative pressure air cavity air return electromagnetic valve,
an air outlet hole of the K22 air inlet channel air inlet electromagnetic valve,
an air inlet hole of an air outlet electromagnetic valve of the K23 air inlet channel,
an air inlet hole of an air inlet electromagnetic valve of the K24 large positive pressure air cavity,
the air inlet holes of the K25 and K26 air bag electromagnetic valves,
an air inlet hole of an air inlet electromagnetic valve of the K27 high-pressure cavity,
an air outlet hole of the K28 small negative pressure air cavity air return electromagnetic valve,
an air inlet hole of an air inlet electromagnetic valve of the K29I small positive pressure air cavity,
an air outlet hole of the K29 II small positive pressure air cavity air inlet electromagnetic valve,
the K211I small positive pressure air cavity vents the air inlet hole of the first electromagnetic valve,
the K211 II small positive pressure air cavity is provided with an air outlet hole of the first electromagnetic valve,
the K216I small positive pressure air cavity vents the air inlet hole of the second electromagnetic valve,
the K216 II small positive pressure air cavity is provided with an air outlet hole of the second electromagnetic valve,
the K218I-K227I liquid path controls the air inlet hole of the electromagnetic valve,
and the K218 III-K227 III liquid path controls the air outlet hole of the electromagnetic valve.
Detailed description of the preferred embodiments
The invention provides a gas cylinder for a peritoneal dialysis machine, which is used for guiding gas flow generated by a gas pump, and as shown in fig. 1 and 2, the gas cylinder comprises a cylinder body A and a cover body B. As shown in fig. 4, the bottle body a is provided with a large positive pressure air cavity 11, a large negative pressure air cavity 12, a small positive pressure air cavity 13 and a small negative pressure air cavity 14 which are mutually independent, and the cover body B forms a seal for the large positive pressure air cavity 11, the large negative pressure air cavity 12, the small positive pressure air cavity 13 and the small negative pressure air cavity 14 respectively. In this embodiment, as shown in fig. 2, a sealing gasket C is disposed between the cover body B and the bottle body a, so that sealing is formed between the air cavities, in this embodiment, a silica gel sealing gasket is adopted, so that the sealing performance is good, the aging is not easy, and the service life of the air bottle is longer. The outer wall of the bottle body A is provided with a mounting bulge A8, the mounting bulge A8 is provided with a mounting through hole, and the mounting bulge A8 can be fixed with a fixing frame or other supports after passing through the mounting through hole through a bolt. When the cover body B is fixed with the bottle body A, the cover body B forms the bottom wall of the gas bottle, and the openings of the large positive pressure gas cavity 11, the large negative pressure gas cavity 12, the small positive pressure gas cavity 13 and the small negative pressure gas cavity 14 face the cover body B. As shown in fig. 1, the top wall of the gas cylinder is provided with a plurality of electromagnetic valve holes for installing a plurality of electromagnetic valves, and the connection relationship and the function of each electromagnetic valve and the electromagnetic valve hole will be described one by one. All solenoid valves used in this embodiment are two-position three-way valves as shown in fig. 3, having ports I, ii and iii, and all valves are normally closed valves.
The bottle body A is provided with:
an air inlet passage 15, as shown in fig. 8, for communicating with the positive pressure end of the air pump, for receiving the positive pressure air flow generated by the air pump;
as shown in fig. 8, one end of an air inlet hole K24 of the large positive pressure air cavity air inlet electromagnetic valve is connected with the air inlet channel 15, and the other end of the air inlet hole K24 is connected with an I port of the large positive pressure air cavity air inlet electromagnetic valve 24;
an air outlet hole (not shown in the figure) of the large positive pressure air cavity air inlet electromagnetic valve, one end of the air outlet hole is used for being connected with the II port of the large positive pressure air cavity air inlet electromagnetic valve 24, and the other end of the air outlet hole is connected with the large positive pressure air cavity 11;
through the air inlet channel 15, the air inlet hole K24 of the air inlet electromagnetic valve of the large positive pressure air cavity, the air outlet hole of the air inlet electromagnetic valve of the large positive pressure air cavity and the air inlet electromagnetic valve 24 of the large positive pressure air cavity, the air flow entering the large positive pressure air cavity 11 from the air inlet channel 15 can be controlled, so that the pressure in the large positive pressure air cavity 11 is controlled, the bottle body A is provided with a plurality of pressure measuring through holes A9, each pressure measuring through hole A9 is provided with a tower connector A6, each tower connector A6 is connected with an air pipe (not shown in the figure), the air pipe is connected with an air pressure sensor (not shown in the figure), the II port of the air inlet hole K24 of the air inlet electromagnetic valve of the large positive pressure air cavity is communicated with one of the pressure measuring through holes A9, the air pressure in the large positive pressure air cavity 11 can be detected, the pressure in the large positive pressure air cavity 11 is generally controlled to be about 400mbar, when the air pressure value of the large positive pressure air cavity 11 is lower than the set lower limit value, the II port of the electromagnetic valve 24 is communicated with the I port, and the air inlet channel 15 is used for supplementing air with the large positive pressure air cavity 11 to the air pressure set value.
The bottle A is also provided with:
a large positive air pressure passage 17, as shown in fig. 6, communicating with the large positive air pressure chamber 11;
one ends of the air inlets K218I-K227I of the liquid path control electromagnetic valves are respectively communicated with the atmospheric pressure channel 17, and the other ends of the air inlets K218I-K227I of the liquid path control electromagnetic valves are connected with the I ports of the liquid path control electromagnetic valves 218-227 in a one-to-one correspondence manner;
an atmospheric pressure channel 18;
the air outlet holes K218 III-K227 III of the liquid path control electromagnetic valves are shown in FIG. 7, one ends of the air outlet holes K218 III-K227 III of the liquid path control electromagnetic valves are respectively communicated with the atmospheric pressure channel 18, and the other ends are used for being connected with the III ports of the liquid path control electromagnetic valves 218-227 in a one-to-one correspondence manner, wherein FIG. 10 shows the air inlet hole K218I of the liquid path control electromagnetic valve 218, the air outlet hole K218 III of the liquid path control electromagnetic valve, the control hole K218 II of the liquid path control electromagnetic valve and the load hole A11 used for communicating the control hole K218 II with the outside of the gas cylinder;
one end of the air return channel 16 is used for being communicated with the negative pressure end of the air pump;
an air inlet hole (not shown in the figure) of the air return electromagnetic valve of the large negative pressure air cavity, one end of the air return electromagnetic valve is communicated with the large negative pressure air cavity 12, and the other end of the air return electromagnetic valve is connected with an II port of the air return electromagnetic valve 21 of the large negative pressure air cavity;
The air outlet hole K21 of the air return electromagnetic valve of the large negative pressure air cavity is provided with one end which is used for being connected with the III port of the air return electromagnetic valve 21 of the large negative pressure air cavity, and the other end which is communicated with the air return channel 16 as shown in figure 9;
through the structure, the gas in the large positive pressure air cavity 11 can flow to the large positive pressure channel 17 and then enter the plurality of liquid path control electromagnetic valves 218-227, and when the II port of one liquid path control electromagnetic valve 218-227 is communicated with the I port, the gas drives corresponding components to block the liquid path by positive pressure generated by the II port of the liquid path control electromagnetic valve 218-227 so as to break the liquid path. When the port II of a certain liquid path control electromagnetic valve 218-227 is communicated with the port III, the negative pressure generated by the gas flowing back to the port III through the port II of the liquid path control electromagnetic valve 218-227 drives the corresponding component to leave the liquid path so as to enable the liquid path to be communicated. The pressure of the large negative pressure air cavity 12 is generally controlled to be about-400 mbar, and the II port of the air outlet hole K21 of the air return electromagnetic valve of the large negative pressure air cavity is communicated with one of the pressure measuring through holes A9, so that the air pressure of the large negative pressure air cavity 12 can be detected. When the absolute value of the air pressure of the large negative pressure air cavity 12 is lower than the set lower limit value, the port II of the electromagnetic valve 21 is communicated with the port III, the large negative pressure air cavity is complemented with pressure to restore to the set value, fig. 11 shows the air path schematic diagram of the air bottle, and the direction of the air flow direction of each electromagnetic valve can be seen from fig. 11.
In this embodiment, as shown in fig. 1 and 2, the wall of the bottle a is provided with a first pump joint hole A1 communicating the air intake passage 15 with the positive pressure end of the air pump and a first pump joint A3 mounted to the first pump joint hole A1, and the wall of the bottle a is also provided with a second pump joint hole A3 communicating the air return passage 16 with the negative pressure end of the air pump and a second pump joint A4 mounted to the second pump joint hole A3.
The gas cylinder is also provided with:
as shown in fig. 10, one end of the air inlet hole K29I of the small positive pressure air cavity air inlet electromagnetic valve is connected with the air inlet channel 15, and the other end is connected with the port I of the small positive pressure air cavity air inlet electromagnetic valve 29;
one end of the air outlet hole K29 II of the small positive pressure air cavity air inlet electromagnetic valve is connected with the II port of the small positive pressure air cavity air inlet electromagnetic valve 29, and the other end of the air outlet hole K29 II is connected with the small positive pressure air cavity 13;
the air inlet hole K29I and the air outlet hole of the small positive pressure air cavity air inlet electromagnetic valve can be provided with the small positive pressure air cavity air inlet electromagnetic valve 29, the air pressure of the small positive pressure air cavity 13 can be controlled through the small positive pressure air cavity air inlet electromagnetic valve 29, the air pressure of the small positive pressure air cavity 13 is generally controlled to be about 300mbar, the II port of the small positive pressure air cavity air inlet electromagnetic valve 29 is communicated with one of the pressure measuring through holes A9, therefore the air pressure of the small negative pressure air cavity 13 can be detected, when the air pressure value of the small positive pressure air cavity 14 exceeds a set value, the electromagnetic valve 29 is started, namely the I port and the II port of the electromagnetic valve 29 are communicated, and the air inlet channel 15 supplements the small positive pressure air cavity 13 to the air pressure set value.
The bottle A is also provided with:
a left pump chamber channel 19, as shown in fig. 10, for communicating with a driver (not shown in the figure) for driving membrane deformation of a left pump chamber of a liquid pump (not shown in the figure), thereby driving liquid into or out of the left pump chamber;
a right pump chamber channel 1a, as shown in fig. 10, for communicating with a driver (not shown in the figure) for driving the membrane deformation of the right pump chamber of the liquid pump, thereby driving the liquid into or out of the right pump chamber;
as shown in fig. 10, one end of the air inlet K211I of the first electromagnetic valve is connected with the small positive pressure air cavity 13, and the other end of the air inlet K211I is connected with the first electromagnetic valve;
one end of the air outlet hole K211 II of the first air outlet electromagnetic valve of the small positive pressure air cavity is used for being connected with the air outlet hole II of the first air outlet electromagnetic valve of the small positive pressure air cavity, and the other end of the air outlet hole K211 II is communicated with the left pump chamber channel 19, as shown in fig. 10;
as shown in fig. 10, one end of the air inlet hole K216I of the second electromagnetic valve is connected with the small positive pressure air cavity 13, and the other end of the air inlet hole K is connected with the I port of the air outlet second electromagnetic valve 216 of the small positive pressure air cavity;
one end of the air outlet hole K216 II of the second electromagnetic valve is used for being connected with the air outlet port II of the second electromagnetic valve of the small positive pressure air cavity, and the other end of the air outlet hole K216 II is communicated with the right pump chamber channel 1a, as shown in fig. 10;
Through the structure, the small positive pressure air cavity air outlet first electromagnetic valve 211 and the small positive pressure air cavity air outlet second electromagnetic valve 216 can be arranged, when the I port and the II port of the small positive pressure air cavity air outlet first electromagnetic valve 211 are communicated, air enters a driver for driving the membrane of the left pump chamber to deform, so that the volume of the left pump chamber is reduced, and liquid in the left pump chamber is extruded at the moment. When the port I and the port II of the second electromagnetic valve 216 are communicated, the gas enters the driver for driving the membrane of the right pump chamber to deform, so that the driver squeezes the liquid in the right pump chamber, and the liquid in the right pump chamber is squeezed out. The first air outlet electromagnetic valve 211 of the small positive pressure air cavity and the second air outlet electromagnetic valve 216 of the small positive pressure air cavity can be controlled to alternately communicate the I port and the II port, so that the liquid in the left pump chamber and the right pump chamber is controlled to be alternately extruded.
The bottle A is also provided with:
an air inlet hole (not shown in the figure) of the first electromagnetic valve for the air intake of the small negative pressure air cavity, one end of the air inlet hole is used for being communicated with a driver for driving the membrane deformation of the left pump chamber of the liquid pump, and the other end of the air inlet hole is used for being connected with an II port of the first electromagnetic valve 213 for the air intake of the small negative pressure air cavity;
an air outlet hole (not shown in the figure) of the first electromagnetic valve for air intake of the small negative pressure air cavity, one end of the air outlet hole is used for being connected with the III port of the first electromagnetic valve 213 for air intake of the small negative pressure air cavity, and the other end of the air outlet hole is communicated with the small negative pressure air cavity 14;
An air inlet hole (not shown in the figure) of the second electromagnetic valve for the air inlet of the small negative pressure air cavity, one end of the air inlet hole is used for being communicated with a driver for driving the membrane deformation of the right pump chamber of the liquid pump, and the other end of the air inlet hole is used for being connected with an II port of the second electromagnetic valve 214 for the air inlet of the small negative pressure air cavity;
an air outlet hole (not shown in the figure) of the second electromagnetic valve for air intake of the small negative pressure air cavity, one end of the air outlet hole is used for being connected with the III port of the second electromagnetic valve 214 for air intake of the small negative pressure air cavity, and the other end of the air outlet hole is communicated with the small negative pressure air cavity 14;
an air inlet hole (not shown in the figure) of the small negative pressure air cavity air return electromagnetic valve, one end of the air inlet hole is communicated with the small negative pressure air cavity 14, and the other end of the air inlet hole is connected with an II port of the small negative pressure air cavity air return electromagnetic valve 28;
and as shown in fig. 9, one end of the air outlet hole K28 of the small negative pressure air cavity air return electromagnetic valve is connected with the III port of the small negative pressure air cavity air return electromagnetic valve 28, and the other end of the air outlet hole K is communicated with the air return channel 16.
Through the structure, the small negative pressure air cavity air inlet first electromagnetic valve 213, the small negative pressure air cavity air inlet second electromagnetic valve 214 and the small negative pressure air cavity air return electromagnetic valve 28 can be arranged, and air in the left pump chamber can enter the small negative pressure air cavity 14 through the small negative pressure air cavity air inlet first electromagnetic valve 213, and at the moment, the film of the left pump chamber deforms under the action of negative pressure, so that the cavity volume of the left pump chamber is enlarged, and liquid is sucked. The gas in the right pump chamber can enter the small negative pressure air chamber 14 through the second electromagnetic valve 214, at this time, the membrane of the right pump chamber deforms under the negative pressure effect, so that the cavity volume of the right pump chamber becomes larger, and at this time, the right pump chamber sucks liquid. The two solenoid valves 213, 214 are controlled to alternately communicate port III and port II, so that the air in the left and right pumping chambers alternately enters the small negative pressure air chamber 14 to alternately discharge the liquid. The air pressure of the small negative pressure air cavity 14 is generally controlled to be about-300 mbar, the port II of the air return electromagnetic valve 28 of the small negative pressure air cavity is communicated with one of the pressure measuring through holes A9, so that the air pressure of the small negative pressure air cavity 14 can be detected, and when the air pressure value of the small negative pressure air cavity 13 is lower than the set lower limit value, the electromagnetic valve 28 is started to enable the port III and the port II of the small negative pressure air cavity to be communicated, and the air pressure value of the small negative pressure air cavity 13 is restored to the air pressure set value.
The air cylinder for the peritoneal dialysis machine is characterized in that the large positive pressure air cavity 11, the large negative pressure air cavity 12, the small positive pressure air cavity 13 and the small negative pressure air cavity 14 are all arranged on the air cylinder, so that the electromagnetic valve can be directly arranged on the air cylinder, a confluence plate is not needed, the functions of the existing air cylinder and the existing confluence plate can be realized, the structure is simpler and more compact, the occupied volume is smaller, and an air pipe is not needed to be arranged between the air cylinder and the confluence plate, thereby reducing the probability of air leakage. The bottle can be integrated into one piece, for example die casting or casting, then each passageway and be used for connecting the air inlet and the venthole of each electromagnetism of installation are processed out on the bottle, and processing is simpler, has reduced the processing degree of difficulty and has reduced the processingvolume.
As shown in fig. 4, the large negative pressure air cavity 12, the large positive pressure air cavity 11, the small positive pressure air cavity 13 and the small negative pressure air cavity 14 are arranged in parallel and in sequence. At least one reinforcing rib A5 is arranged in each of the large negative pressure air cavity 12, the large positive pressure air cavity 11, the small positive pressure air cavity 13 and the small negative pressure air cavity 14, the reinforcing rib A5 is perpendicular to the length direction of each air cavity, one end of the reinforcing rib A5 is connected with the inner wall of one side of each air cavity, and the other end of the reinforcing rib A5 is connected with the inner wall of the opposite side of each air cavity. The reinforcing rib A5 can strengthen the structure of the rectangular air cavities and prevent the walls of each air cavity from deforming, so that the structure of the air cylinder is more stable.
The gas cylinder as shown in fig. 2 further comprises a large positive pressure air cavity air inlet electromagnetic valve 24, a plurality of liquid path control electromagnetic valves 218-227, a large negative pressure air cavity air return electromagnetic valve 21, a small positive pressure air cavity air inlet electromagnetic valve 29, a small positive pressure air cavity air outlet first electromagnetic valve 211, a small positive pressure air cavity air outlet second electromagnetic valve 216, a small negative pressure air cavity air inlet first electromagnetic valve 213, a small negative pressure air cavity air inlet second electromagnetic valve 214 and a small negative pressure air cavity air return electromagnetic valve 28, and the gas cylinder further comprises a circuit board D arranged on the cylinder body A, wherein the circuit board D is provided with a controller (not shown in the figure) which is respectively connected with all the electromagnetic valves and the air pumps of the invention so as to control the electromagnetic valves and the air pumps, in the invention, all the air pressure sensors are connected with the controller, working parameters of the air pumps and the pressure values of all the cavities are set for the controller, and when the data transmitted by the air pressure sensors are lower than the set values, the corresponding electromagnetic valves are controlled to the corresponding cavity air pumps so as to restore the air pressure in the corresponding cavities to the set values.
The air cylinder for the peritoneal dialysis machine integrates the large positive pressure air cavity 11, the large negative pressure air cavity 12, the small positive pressure air cavity 13, the small negative pressure air cavity 14, all the electromagnetic valves and the circuit board D into one module, so that high integration is realized, the structure is more compact, the confluence plate is reduced, and the cost rise caused by the separation of the air cylinder and the electromagnetic valves in the prior art is reduced. In addition, the whole gas cylinder can be replaced when maintenance is needed, so that maintenance speed and efficiency are improved.
As shown in fig. 1 and 2, the outer wall of the top wall of the bottle body is provided with a plurality of protruding columns a12, the protruding columns a12 and the circuit board D are each provided with a mounting hole, and the circuit board D is mounted to the gas bottle by means of screws passing through the mounting holes of the protruding columns a12 and the mounting holes of the circuit board D, by which the circuit board can be positioned and mounted rapidly. In this embodiment, the number of the hydraulic control solenoid valves 218 to 227 is 10, and of course, the number of the hydraulic control solenoid valves 218 to 227 may be set according to actual needs.
The gas cylinder is also provided with:
an air inlet hole K27 of the high-pressure cavity air inlet electromagnetic valve is shown in fig. 8, one end of the air inlet hole K27 is communicated with the air inlet channel 15, and the other end of the air inlet hole K27 is communicated with an I port of the high-pressure cavity air inlet electromagnetic valve 27;
an air outlet hole (not shown) of the high-pressure cavity air inlet electromagnetic valve, one end of which is used for communicating with the II port of the high-pressure cavity air inlet electromagnetic valve 27, and the other end of which is communicated with the high-pressure cavity;
an air inlet hole (not shown in the figure) of the first electromagnetic valve for the air outlet of the high-pressure cavity, one end of the air inlet hole is communicated with the high-pressure cavity, and the other end of the air inlet hole is communicated with an I port of the first electromagnetic valve 210 for the air outlet of the high-pressure cavity;
an air outlet hole (not shown) of the first air outlet valve of the high-pressure cavity, one end of which is used for communicating with the II port of the first air outlet valve 210 of the high-pressure cavity, and the other end of which is communicated with the left pump chamber channel 19;
An air inlet hole (not shown in the figure) of the high-pressure cavity air outlet second electromagnetic valve, one end of the air inlet hole is communicated with the high-pressure cavity, and the other end of the air inlet hole is communicated with an I port of the high-pressure cavity air outlet first electromagnetic valve 210;
an air outlet hole (not shown) of the second air outlet second electromagnetic valve of the high-pressure cavity is provided, one end of the air outlet hole is used for communicating with the II port of the second air outlet second electromagnetic valve 217 of the high-pressure cavity, and the other end of the air outlet hole is communicated with the right pump chamber channel 1 a.
The gas cylinder further comprises the high-pressure cavity gas inlet electromagnetic valve 27, a high-pressure cavity gas outlet first electromagnetic valve 210 and a high-pressure cavity gas outlet second electromagnetic valve 217, and the high-pressure cavity gas inlet electromagnetic valve 27, the high-pressure cavity gas outlet first electromagnetic valve 210 and the high-pressure cavity gas outlet second electromagnetic valve 217 are respectively connected with the circuit board D. In this embodiment, the gas cylinder further includes a high-pressure chamber module (not shown in the figure), the high-pressure chamber module includes a high-pressure chamber, the pressure range of the high-pressure chamber is about 350mbar, and the port ii of the high-pressure chamber air inlet solenoid valve 27 is communicated with one of the pressure measuring through holes A9, so that the air pressure of the high-pressure chamber can be detected. The high-pressure chamber of the high-pressure chamber module may be connected to the port ii of the high-pressure chamber air inlet solenoid valve 27 through a high-pressure chamber air inlet pipe (not shown in the figure), and the port I of the high-pressure chamber and high-pressure chamber air outlet first solenoid valve 210 and the port I of the high-pressure chamber air outlet second solenoid valve are respectively connected through a high-pressure chamber air outlet pipe (not shown in the figure). Air pressure sensors (not shown) are provided in the left and right pump chambers 19 and 1a to detect the pressures of the left and right pump chambers, record the pressures and pressure changes, and calculate the volumes of the liquid pumped by the left and right pump chambers according to the gas equation.
The air bottle is also provided with air inlets of two air bag electromagnetic valves 25 and 26, as shown in fig. 8, one end of each air bag electromagnetic valve is communicated with the air inlet channel 15, and the other end of each air bag electromagnetic valve is communicated with an I port of each air bag electromagnetic valve 25 and 26. As shown in fig. 11, the gas cylinder further includes two air bag solenoid valves 25,26, and in this embodiment, the gas cylinder further includes two air bags (not shown in the drawing) which are in one-to-one correspondence with the ports ii of the two air bag solenoid valves 25, 26. One of the bladders is inflated to bulge and serve to push an extrusion that presses against the membrane of the liquid cartridge of the peritoneal dialysis machine into sealing contact with structures within the cartridge, thereby forming a plurality of independent and sealed passages and cavities within the cartridge. The other air bag can be deflated when the peritoneal dialysis machine breaks down to push the other extrusion part to extrude all the liquid pipelines so that the liquid passages are cut off, and the liquid in all the liquid pipelines can not flow, thereby preventing the liquid from continuing to flow and injuring the human body. The port II of the two air bag electromagnetic valves 25 and 26 are respectively communicated with two of the pressure measuring through holes A9, so that the air pressures of the two air bags can be respectively detected, when the air pressure is lower than a set value, the electromagnetic valve 25 or 26 is started to enable the port I and the port II to be communicated, and the air bags are supplemented to the set value through the air inlet channel 15.
The gas cylinder is also provided with:
an air outlet hole K22 of the air inlet electromagnetic valve of the air inlet channel is shown in fig. 9, one end of the air outlet hole K is communicated with the air return channel 16, and the other end of the air outlet hole K is communicated with a III port of the air inlet electromagnetic valve 22 of the air inlet channel;
as shown in fig. 8, one end of an air inlet hole K23 of the air inlet channel air outlet electromagnetic valve is communicated with the air inlet channel 15, and the other end is communicated with an I port of the air inlet channel air outlet electromagnetic valve 23.
The gas cylinder further comprises the air inlet channel air inlet electromagnetic valve 22 and the air inlet channel air outlet electromagnetic valve 23, wherein the II port of the air inlet channel air inlet electromagnetic valve 22 is communicated with the atmosphere, and the II port of the air inlet channel air outlet electromagnetic valve 23 is communicated with the atmosphere.
The air inlet channel 15 can be communicated with the atmosphere through the air inlet channel air inlet electromagnetic valve 22 and the air inlet channel air outlet electromagnetic valve 23, so that air supplementing from the atmosphere and air exhausting into the atmosphere are realized. The wall of the bottle body A is also provided with an atmosphere through hole A10 communicated with the II port of the air inlet electromagnetic valve 22 of the air inlet channel, the atmosphere through hole A10 forms an air inlet, the wall of the bottle body A is also provided with an atmosphere through hole A10 communicated with the II port of the air outlet electromagnetic valve 23 of the air inlet channel, the atmosphere through hole A10 forms an air outlet, the air inlet and the air outlet are both provided with an air filtering column A7, and air entering the air bottle and exhausted from the air bottle is filtered, so that the air in the air channel is kept clean without dust, the risk of faults such as air channel blockage caused by dust and the like is reduced, and the effect of reducing working noise is also achieved.
The gas cylinder is also provided with:
an air inlet hole (not shown) of the left pump chamber atmospheric solenoid valve, one end of which is communicated with a driver for driving the membrane deformation of the left pump chamber of the liquid pump, and the other end of which is communicated with an II port of the left pump chamber atmospheric solenoid valve 212;
an air inlet hole (not shown) of the right pump chamber atmospheric solenoid valve is connected at one end to a driver for driving the membrane deformation of the right pump chamber of the liquid pump, and at the other end to the port II of the right pump chamber atmospheric solenoid valve 215.
The gas cylinder further comprises a left pump chamber atmosphere electromagnetic valve 212 and a right pump chamber atmosphere electromagnetic valve 215, wherein an I port of the left pump chamber atmosphere electromagnetic valve 212 is communicated with the atmosphere, an I port of the right pump chamber atmosphere electromagnetic valve 215 is communicated with the atmosphere, and the left pump chamber and the right pump chamber can be controlled to realize the exhausting to the atmosphere.
The invention also provides a aerodynamic device comprising an air pump (not shown in the figure) and an air cylinder as described above, wherein the positive pressure end of the air pump is communicated with the air inlet channel 15 of the air cylinder, and the negative pressure end of the air pump is communicated with the air return channel 16 of the air cylinder. The air pump generates air flow with pressure, and the air bottle is used for storing the air flow and guiding the air flow and controlling the further flowing direction of the air flow through the electromagnetic valve.
The invention also provides a peritoneal dialysis machine comprising a fluid path apparatus (not shown in the figures) and a pneumatic apparatus as described above, the pneumatic apparatus controlling the on and off of the passages of each fluid path of the fluid path apparatus.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent substitutions of the invention will occur to those skilled in the art, which are within the spirit and scope of the invention.

Claims (15)

1. A gas cylinder for peritoneal dialysis machine, its characterized in that includes bottle and lid, the bottle has been seted up:
the air inlet channel is used for communicating with the positive pressure end of the air pump;
a large positive pressure air cavity;
one end of the air inlet hole of the large positive pressure air cavity air inlet electromagnetic valve is connected with the air inlet channel, and the other end of the air inlet hole is connected with the I port of the large positive pressure air cavity air inlet electromagnetic valve;
one end of the air outlet hole of the large positive pressure air cavity air inlet electromagnetic valve is connected with the II port of the large positive pressure air cavity air inlet electromagnetic valve, and the other end of the air outlet hole is connected with the large positive pressure air cavity;
the large positive pressure air channel is communicated with the large positive pressure air cavity;
One end of the air inlet holes of the liquid path control electromagnetic valves is respectively communicated with the large positive air pressure channel, and the other end of the air inlet holes of the liquid path control electromagnetic valves is connected with the I ports of the liquid path control electromagnetic valves in a one-to-one correspondence manner;
the atmosphere negative pressure channel is connected with the III ports of the liquid path control electromagnetic valves;
one ends of the air outlet holes of the liquid path control electromagnetic valves are respectively communicated with the atmospheric pressure channels, and the other ends of the air outlet holes of the liquid path control electromagnetic valves are connected with the III ports of the liquid path control electromagnetic valves in a one-to-one correspondence manner;
the large negative pressure air cavity is communicated with the large negative pressure channel;
one end of the air return channel is communicated with the negative pressure end of the air pump;
one end of the air inlet hole of the air return electromagnetic valve of the large negative pressure air cavity is communicated with the large negative pressure air cavity, and the other end of the air inlet hole is connected with the II port of the air return electromagnetic valve of the large negative pressure air cavity;
one end of the air outlet hole of the air return electromagnetic valve of the large negative pressure air cavity is connected with the III port of the air return electromagnetic valve of the large negative pressure air cavity, and the other end of the air outlet hole is communicated with the air return channel;
a small positive pressure air cavity;
one end of the air inlet hole of the small positive pressure air cavity air inlet electromagnetic valve is connected with the air inlet channel, and the other end of the air inlet hole is connected with the I port of the small positive pressure air cavity air inlet electromagnetic valve;
One end of the air outlet hole of the small positive pressure air cavity air inlet electromagnetic valve is connected with the II port of the small positive pressure air cavity air inlet electromagnetic valve, and the other end of the air outlet hole is connected with the small positive pressure air cavity;
a left pump chamber channel for communicating with a driver that drives a membrane of a left pump chamber of the liquid pump;
a right pump chamber channel for communicating with a driver that drives a membrane of a right pump chamber of the liquid pump;
one end of the air inlet hole of the first electromagnetic valve is connected with the small positive pressure air cavity, and the other end of the air inlet hole is connected with the first electromagnetic opening of the air outlet of the small positive pressure air cavity;
one end of the air outlet hole of the first air outlet electromagnetic valve of the small positive pressure air cavity is connected with the II port of the air outlet first electromagnetic valve of the small positive pressure air cavity, and the other end of the air outlet hole is communicated with the left pump chamber channel;
one end of the air inlet hole of the second electromagnetic valve is connected with the small positive pressure air cavity, and the other end of the air inlet hole is connected with the I port of the second electromagnetic valve;
one end of the air outlet hole of the second electromagnetic valve is connected with the second electromagnetic port of the air outlet of the small positive pressure air cavity, and the other end of the air outlet hole is communicated with the right pump chamber channel;
a small negative pressure air cavity;
one end of the air inlet hole of the first air inlet electromagnetic valve of the small negative pressure air cavity is communicated with the left pump chamber channel, and the other end of the air inlet hole is connected with the II port of the first air inlet electromagnetic valve of the small negative pressure air cavity;
One end of the air outlet hole of the small negative pressure air cavity air inlet first electromagnetic valve is connected with the III port of the small negative pressure air cavity air inlet first electromagnetic valve, and the other end of the air outlet hole is communicated with the small negative pressure air cavity;
one end of the air inlet hole of the second air inlet electromagnetic valve of the small negative pressure air cavity is communicated with the right pump chamber channel, and the other end of the air inlet hole of the second air inlet electromagnetic valve of the small negative pressure air cavity is connected with the II port of the second air inlet electromagnetic valve of the small negative pressure air cavity;
one end of the air outlet hole of the second electromagnetic valve is connected with the III port of the second electromagnetic valve, and the other end of the air outlet hole is communicated with the small negative pressure air cavity;
one end of the air inlet hole of the small negative pressure air cavity air return electromagnetic valve is communicated with the small negative pressure air cavity, and the other end of the air inlet hole is connected with the II port of the small negative pressure air cavity air return electromagnetic valve;
one end of the air outlet hole of the small negative pressure air cavity air return electromagnetic valve is connected with the III port of the small negative pressure air cavity air return electromagnetic valve, and the other end of the air outlet hole is communicated with the air return channel;
the large positive pressure air cavity, the large negative pressure air cavity, the small positive pressure air cavity and the small negative pressure air cavity are mutually independent, and the cover body forms sealing closure for the large positive pressure air cavity, the large negative pressure air cavity, the small positive pressure air cavity and the small negative pressure air cavity respectively.
2. The gas cylinder of claim 1, further comprising the large positive pressure gas chamber inlet solenoid valve, a plurality of liquid path control solenoid valves, a large negative pressure gas chamber return solenoid valve, a small positive pressure gas chamber inlet solenoid valve, a small positive pressure gas chamber outlet first solenoid valve, a small positive pressure gas chamber outlet second solenoid valve, a small negative pressure gas chamber inlet first solenoid valve, a small negative pressure gas chamber inlet second solenoid valve, and a small negative pressure gas chamber return solenoid valve, the gas cylinder further comprising a circuit board provided on the cylinder body, the circuit board being provided with a controller connected to each solenoid valve and the gas pump, respectively, to control each solenoid valve and the gas pump.
3. The gas cylinder according to claim 2, further provided with:
one end of the air inlet hole of the high-pressure cavity air inlet electromagnetic valve is communicated with the air inlet channel, and the other end of the air inlet hole is communicated with the I port of the high-pressure cavity air inlet electromagnetic valve;
one end of the air outlet hole of the high-pressure cavity air inlet electromagnetic valve is communicated with the II port of the high-pressure cavity air inlet electromagnetic valve, and the other end of the air outlet hole is communicated with the high-pressure cavity;
one end of the air inlet hole of the first air outlet electromagnetic valve of the high-pressure cavity is communicated with the high-pressure cavity, and the other end of the air inlet hole is communicated with the I port of the first air outlet electromagnetic valve of the high-pressure cavity;
one end of the air outlet hole of the high-pressure cavity air outlet first electromagnetic valve is communicated with the II port of the high-pressure cavity air outlet first electromagnetic valve, and the other end of the air outlet hole is communicated with the left pump chamber channel;
one end of the air inlet hole of the high-pressure cavity air outlet second electromagnetic valve is communicated with the high-pressure cavity, and the other end of the air inlet hole is communicated with the I port of the high-pressure cavity air outlet second electromagnetic valve;
one end of the air outlet hole of the high-pressure cavity air outlet second electromagnetic valve is communicated with the II port of the high-pressure cavity air outlet second electromagnetic valve, and the other end of the air outlet hole is communicated with the right pump chamber channel.
4. The gas cylinder of claim 3, further comprising the high pressure chamber inlet solenoid valve, a high pressure chamber outlet first solenoid valve, and a high pressure chamber outlet second solenoid valve, wherein the high pressure chamber inlet solenoid valve, the high pressure chamber outlet first solenoid valve, and the high pressure chamber outlet second solenoid valve are respectively connected to the circuit board.
5. The gas cylinder according to claim 2, wherein the gas cylinder is further provided with air inlet holes of two air bag solenoid valves, one end of each air bag solenoid valve is communicated with the air inlet channel, and the other end of each air bag solenoid valve is communicated with an I port of the air bag solenoid valve.
6. The gas cylinder of claim 5, further comprising two of said air bag solenoid valves, each of said air bag solenoid valves being connected to said circuit board.
7. The gas cylinder according to any one of claims 2 to 5, characterized in that it is further provided with:
one end of the air outlet hole of the air inlet electromagnetic valve of the air inlet channel is communicated with the air return channel, and the other end of the air outlet hole is communicated with the III port of the air inlet electromagnetic valve of the air inlet channel;
one end of the air inlet hole of the air inlet channel air outlet electromagnetic valve is communicated with the air inlet channel, and the other end of the air inlet hole is communicated with the I port of the air inlet channel air outlet electromagnetic valve.
8. The gas cylinder according to claim 7, further comprising the inlet channel inlet solenoid valve and the inlet channel outlet solenoid valve, wherein the inlet channel inlet solenoid valve and the inlet channel outlet solenoid valve are respectively connected with the circuit board, the port ii of the inlet channel inlet solenoid valve is in communication with the atmosphere, and the port ii of the inlet channel outlet solenoid valve is in communication with the atmosphere.
9. The gas cylinder according to any one of claims 2 to 5, characterized in that it is further provided with:
one end of the air inlet hole of the left pump chamber atmospheric electromagnetic valve is communicated with the left pump chamber channel, and the other end of the air inlet hole is communicated with the II port of the left pump chamber atmospheric electromagnetic valve;
one end of the air inlet hole of the right pump chamber atmospheric electromagnetic valve is communicated with the right pump chamber channel, and the other end is communicated with the II port of the right pump chamber atmospheric electromagnetic valve.
10. The gas cylinder of claim 9, further comprising a left pump chamber atmospheric solenoid valve and a right pump chamber atmospheric solenoid valve, wherein an I port of the left pump chamber atmospheric solenoid valve is vented to atmosphere, wherein an I port of the right pump chamber atmospheric solenoid valve is vented to atmosphere, and wherein the left pump chamber atmospheric solenoid valve and the right pump chamber atmospheric solenoid valve are respectively connected to the circuit board.
11. The gas cylinder according to any one of claims 1 to 5, wherein the large negative pressure gas chamber, the large positive pressure gas chamber, the small positive pressure gas chamber, and the small negative pressure gas chamber are arranged in parallel and in sequence.
12. The gas cylinder according to any one of claims 1 to 5, wherein at least one reinforcing rib is provided in each of the large negative pressure gas chamber, the large positive pressure gas chamber, the small positive pressure gas chamber and the small negative pressure gas chamber, the reinforcing rib being perpendicular to the length direction of each gas chamber, one end of the reinforcing rib being connected to an inner wall of one side of each gas chamber, and the other end being connected to an inner wall of an opposite side of each gas chamber.
13. The gas cylinder according to any one of claims 2 to 5, wherein the number of the liquid path control solenoid valves is 10.
14. A gas power device, characterized by comprising a gas pump and a gas cylinder according to any one of claims 1-13, wherein the positive pressure end of the gas pump is in communication with the gas inlet channel of the gas cylinder, and the negative pressure end of the gas pump is in communication with the gas return channel of the gas cylinder.
15. A peritoneal dialysis machine comprising a fluid path apparatus and a pneumatic apparatus as claimed in claim 14, wherein the pneumatic apparatus controls the opening and closing of the passages of each fluid path of the fluid path apparatus.
CN202310176982.9A 2023-02-28 2023-02-28 Gas cylinder for peritoneal dialysis machine, aerodynamic device and peritoneal dialysis machine Pending CN116255558A (en)

Priority Applications (1)

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CN202310176982.9A CN116255558A (en) 2023-02-28 2023-02-28 Gas cylinder for peritoneal dialysis machine, aerodynamic device and peritoneal dialysis machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310176982.9A CN116255558A (en) 2023-02-28 2023-02-28 Gas cylinder for peritoneal dialysis machine, aerodynamic device and peritoneal dialysis machine

Publications (1)

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CN116255558A true CN116255558A (en) 2023-06-13

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Family Applications (1)

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CN202310176982.9A Pending CN116255558A (en) 2023-02-28 2023-02-28 Gas cylinder for peritoneal dialysis machine, aerodynamic device and peritoneal dialysis machine

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