CN111686340A - Infusion apparatus and working method thereof - Google Patents
Infusion apparatus and working method thereof Download PDFInfo
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- CN111686340A CN111686340A CN202010683704.9A CN202010683704A CN111686340A CN 111686340 A CN111686340 A CN 111686340A CN 202010683704 A CN202010683704 A CN 202010683704A CN 111686340 A CN111686340 A CN 111686340A
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- 238000001802 infusion Methods 0.000 title claims abstract description 201
- 238000000034 method Methods 0.000 title claims description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 23
- 239000003814 drug Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims description 6
- 238000011017 operating method Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000003570 air Substances 0.000 description 227
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M5/148—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags
- A61M5/1483—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags using flexible bags externally pressurised by fluid pressure
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
-
- 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
- A61M2205/18—General characteristics of the apparatus with alarm
-
- 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
- A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
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- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
An infusion apparatus comprises a shell, an air inlet pump, a throttle regulating valve, a manual valve, an air bag, a long-closed electromagnetic valve and an exhaust pump 7, wherein an infusion space is arranged on the shell, the air bag and an infusion bag are arranged in the infusion space, an infusion bag hole for putting in or taking out the infusion bag is formed in the top of the infusion space, and the infusion bag is put into the infusion space from the infusion bag hole, so that an infusion nozzle is exposed out of the infusion bag hole; the speed of inflating the gasbag is set through setting up the throttle control valve, open the gas that manual valve made in the gas pitcher and advance the gasbag through throttle control valve uniform velocity flow and inflate for the gasbag, the outside inflation of gasbag extrudees infusion bag, makes the liquid medicine in the infusion bag flow in the human body from the transfusion needle and realize the infusion, thereby it realizes the traditional infusion mode of infusion to have changed to have current through hanging infusion bag and come the formation pressure differential, not only can be used for the hospital, can also be used for first aid and open air.
Description
Technical Field
The invention belongs to an infusion apparatus and a working method thereof, and particularly relates to a suspension-free infusion apparatus.
Background
In infusion, an infusion bag or an infusion bottle is usually required to be suspended, and infusion is realized by dripping liquid medicine through pressure difference. Since there are fewer and fewer infusion bottles, infusion bags are mainly used, and therefore, only infusion by infusion bags is considered below.
During infusion, the infusion bag is hung upside down on the infusion stand column and is connected with the drip cup through the conduit, and the drip cup inputs the liquid medicine into a human body through the infusion needle.
However, in practical applications, such as field emergency, there is no condition for creating an infusion environment, and it is difficult to suspend the infusion bag, but the patient needs to infuse, so it is necessary to find an infusion apparatus capable of implementing infusion without suspending.
Disclosure of Invention
The purpose of the invention is: provides an infusion apparatus which can realize infusion without hanging.
The technical scheme of the invention is as follows: an infusion apparatus comprises a shell 1, an air inlet pump 2, a throttling regulating valve 3, a manual valve 4, an air bag 5, a long-closed type electromagnetic valve 6 and an exhaust pump 7, wherein an infusion space is arranged on the shell, the air bag 5 and an infusion bag 8 are arranged in the infusion space, an infusion bag hole for putting in or taking out the infusion bag is formed in the top of the infusion space, and the infusion bag is put into the infusion space from the infusion bag hole, so that an infusion nozzle is exposed out of the infusion bag hole; the air outlet end of the air inlet pump is connected with a throttling regulating valve, the air outlet end of the throttling regulating valve is connected with a manual valve, the air outlet end of the manual valve is connected with the air inlet end of an air bag 5, the air outlet end of the air bag 5 is sequentially connected with a normally-closed electromagnetic valve 6 and an air exhaust pump 7 through pipelines, and a power switch 11, an inflation switch 12 and an air exhaust switch 13 are arranged on the shell; an air bag pressure switch 51 is provided on the air bag.
An air tank 9 is arranged between the air inlet pump and the throttle regulating valve, and an air tank pressure switch 91 is arranged on the air tank 9; the power supply is connected with the air charging switch and the air discharging switch through leads respectively, and is connected with the air inlet pump, the air discharging pump, the air bag pressure switch and the normally closed electromagnetic valve through leads; the inflation switch is connected with the air tank pressure switch and the air bag pressure switch through leads, and the exhaust switch is connected with the normally closed electromagnetic valve and the exhaust pump through leads; a buzzer 14 is arranged between the inflation switch and the air bag pressure switch, and the air tank pressure switch is connected with the air inlet pump through a lead.
The air tank pressure switch is a normally closed air pressure switch, when the inflation switch is closed, when the air tank pressure switch detects that the air pressure in the air tank is lower than the preset air tank pressure upper limit, the inflation pump inflates the air tank until the air tank pressure reaches the preset air tank pressure upper limit of the air tank pressure switch; when the gas tank pressure switch detects that the gas pressure in the gas tank is lower than the preset gas tank pressure upper limit again, the gas tank pressure switch resets, and the inflator pump inflates the gas tank until the gas tank pressure reaches the preset gas tank pressure upper limit again.
When the air bag pressure switch is closed, when the air bag pressure switch detects that the air pressure in the air bag reaches the preset air bag pressure upper limit, the air bag pressure switch is closed, so that the buzzer is connected with an alarm to prompt that the infusion is finished, the manual infusion valve is manually closed, the exhaust switch is closed, the normally-closed electromagnetic valve and the exhaust pump are connected to exhaust the air bag, and when the air bag pressure switch detects that the air bag pressure is smaller than the preset air bag pressure upper limit, the air bag pressure switch is reset, and the buzzer stops alarming; and after the exhaust pump and the normally closed electromagnetic valve work for N seconds, the exhaust switch is manually switched off, so that the normally closed electromagnetic valve and the exhaust pump stop working.
The N seconds are generally 10 to 15 seconds.
An adjusting knob of the balance valve is exposed outside through the shell.
A manual bypass valve is provided between the gas canister and the bladder.
The working method of the infusion set comprises the following steps:
firstly, before use, a power supply is switched on, an inflation switch is turned on, when the air tank pressure switch detects that the air pressure in the air tank is lower than the preset air tank pressure upper limit, the air tank pressure switch is in a closed state, and an inflation pump inflates the air tank until the air tank pressure reaches the preset air tank pressure upper limit of the air tank pressure switch; when the gas tank pressure switch detects that the gas pressure in the gas tank is higher than the preset gas tank pressure upper limit, the gas tank pressure switch is switched off, the inflator pump stops working, when the gas tank pressure switch detects that the gas pressure in the gas tank is lower than the preset gas tank pressure upper limit again, the gas tank pressure switch resets, the inflator pump inflates the gas tank again until the gas tank pressure reaches the preset gas tank pressure upper limit of the gas tank pressure switch, and the process is repeated;
secondly, on the premise that the air tank is filled with air, a throttle regulating valve is preset, an infusion bag is placed in an infusion space, an infusion nozzle is exposed out of an infusion hole and faces upwards, one end of an infusion needle is inserted into the infusion nozzle, a manual valve is opened, air in the air tank flows into an air bag from the throttle regulating valve according to a preset flow, the air bag uniformly expands and extrudes the infusion bag, residual air in the infusion bag flows out of the infusion needle until liquid medicine in the infusion bag uniformly flows out of the infusion needle, the infusion needle is inserted into a human body for infusion, when an air pressure switch of the air bag detects that the air pressure in the air bag reaches a preset air bag pressure upper limit, the air bag pressure switch is closed, a buzzer is connected to alarm to prompt that infusion is finished, the manual valve is manually closed, and the infusion needle is pulled out of the human body;
thirdly, turning on an exhaust switch, switching on a normally closed electromagnetic valve and an exhaust pump to exhaust the air bag, and when the air bag pressure switch detects that the air bag pressure is less than the preset upper limit of the air bag pressure, resetting the air bag pressure switch and stopping the buzzer from alarming; and after the exhaust pump and the normally closed electromagnetic valve work for N seconds, the exhaust switch is manually switched off, so that the normally closed electromagnetic valve and the exhaust pump stop working.
In the infusion process, when the air pressure of the air tank detected by the air tank pressure switch is lower than the preset air pressure lower limit, the power supply of the air inlet pump is connected to enable the air inlet pump to work to aerate the air tank until the air pressure of the air tank detected by the air tank pressure switch reaches the preset air pressure lower limit.
The beneficial effects are that:
1. the throttle regulating valve is arranged to set the speed of inflating the air bag, the manual valve is opened to enable the gas in the gas tank to flow into the air bag at a constant speed through the throttle regulating valve to inflate the air bag, the air bag expands outwards to extrude the infusion bag, so that the liquid medicine in the infusion bag flows into a human body from the infusion needle to realize infusion, the traditional infusion mode that the existing infusion bag is suspended to form pressure difference to realize infusion is changed, and the infusion bag can be used for hospitals, first aid and outdoors;
2. the infusion apparatus can be used repeatedly, only the infusion bag needs to be replaced for each infusion, the air bag and the infusion bag are two relatively independent parts, and the liquid medicine in the infusion bag cannot be polluted by the outside;
3. the air bag is exhausted after the infusion is finished, and the air bag does not need to be completely emptied, so long as a new infusion bag to be used can be placed into the infusion space, the difficulty of exhausting is reduced, and the use efficiency is improved.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic view of another angle of the embodiment of FIG. 1;
FIG. 3 is another embodiment of the present invention;
FIG. 4 is a partial exploded view of the embodiment of FIG. 3;
FIG. 5 is another partial exploded view of the embodiment of FIG. 3;
FIG. 6 is a schematic view of the electrical compartment of the embodiment of FIG. 3;
FIG. 7 is a schematic view of FIG. 6 with the electrical components removed;
FIG. 8 is a schematic partial cross-sectional view of the embodiment of FIG. 3;
FIG. 9 is a circuit diagram of the present invention;
FIG. 10 is a schematic view with the addition of a manual bypass valve.
Detailed Description
As shown in fig. 1 to 9, an infusion apparatus comprises a housing 1, an air inlet pump 2, a throttle regulating valve 3, a manual valve 4, an air bag 5, a long-closed electromagnetic valve 6 and an exhaust pump 7, wherein an infusion space is arranged on the housing, the air bag 5 and an infusion bag 8 are arranged in the infusion space, an infusion bag hole for putting in or taking out the infusion bag is arranged at the top of the infusion space, and the infusion bag is put into the infusion space from the infusion bag hole, so that an infusion nozzle is exposed out of the infusion bag hole.
The air outlet end of the air inlet pump is connected with a throttling regulating valve, the air outlet end of the throttling regulating valve is connected with a manual valve, the air outlet end of the manual valve is connected with the air inlet end of an air bag 5, the air outlet end of the air bag 5 is sequentially connected with a normally-closed electromagnetic valve 6 and an air exhaust pump 7 through pipelines, and a power switch 11, an inflation switch 12 and an air exhaust switch 13 are arranged on the shell; the air bag is provided with an air bag pressure switch 51; an air tank 9 is arranged between the air inlet pump and the throttle regulating valve, and an air tank pressure switch 91 is arranged on the air tank 9; the power supply is connected with the air charging switch and the air discharging switch through leads respectively, and is connected with the air inlet pump, the air discharging pump, the air bag pressure switch and the normally closed electromagnetic valve through leads; the inflation switch is connected with the air tank pressure switch and the air bag pressure switch through leads, and the exhaust switch is connected with the normally closed electromagnetic valve and the exhaust pump through leads; a buzzer 14 is arranged between the inflation switch and the air bag pressure switch, and the air tank pressure switch is connected with the air inlet pump through a lead.
The air inlet end of the air bag is connected with the air outlet end of the manual valve, and the air outlet end of the air bag is connected with the normally closed electromagnetic valve, so that the air bag is fixed on the wall of the infusion space. The air bag and the infusion bag except the infusion nozzle are overlapped and arranged in the infusion space, so that when the air bag is expanded, the infusion bag is squeezed, and the liquid medicine in the infusion bag is squeezed out from the infusion needle.
The infusion bag is a common medical infusion bag.
The flow can be controlled by the throttle regulating valve, so that the gas in the gas tank uniformly flows into the gas bag according to the preset setting, and the gas bag uniformly extrudes the infusion bag, so that the liquid medicine in the infusion bag uniformly flows into a human body through the infusion needle.
The air tank pressure switch is a normally closed air pressure switch, when the inflation switch is closed, when the air tank pressure switch detects that the air pressure in the air tank is lower than the preset air tank pressure upper limit, the inflation pump inflates the air tank until the air tank pressure reaches the preset air tank pressure upper limit of the air tank pressure switch; when the gas tank pressure switch detects that the gas pressure in the gas tank is lower than the preset gas tank pressure upper limit again, the gas tank pressure switch resets, and the inflator pump inflates the gas tank until the gas tank pressure reaches the preset gas tank pressure upper limit again.
When the air bag pressure switch is closed, when the air bag pressure switch detects that the air pressure in the air bag reaches the preset air bag pressure upper limit, the air bag pressure switch is closed, so that the buzzer is connected with an alarm to prompt that the infusion is finished, the manual infusion valve is manually closed, the exhaust switch is closed, the normally-closed electromagnetic valve and the exhaust pump are connected to exhaust the air bag, and when the air bag pressure switch detects that the air bag pressure is smaller than the preset air bag pressure upper limit, the air bag pressure switch is reset, and the buzzer stops alarming; and after the exhaust pump and the normally closed electromagnetic valve work for N seconds, the exhaust switch is manually switched off, so that the normally closed electromagnetic valve and the exhaust pump stop working.
The exhaust switch is manually controlled, the infusion is finished after the buzzer alarms, the exhaust switch is manually opened to exhaust, the power supply of the normally closed electromagnetic valve and the exhaust pump is switched on to enable the normally closed electromagnetic valve and the exhaust pump to work, most of gas in the air bag is exhausted, the exhaust speed is high, the exhaust speed is usually only 10-15 seconds, the gas in the air bag does not need to be completely exhausted, and the infusion bag in the shell can be taken out as long as the gas is exhausted.
The N seconds are generally 10 to 15 seconds.
An adjusting knob of the balance valve is exposed outside through the shell so as to be convenient to adjust.
A moisture separator 21 is provided at the outlet end of the inlet pump 2 for removing moisture from the incoming gas.
The air inlet pump and the air pump are one-way air pumps.
An air inlet and an air outlet are respectively arranged on two sides of the shell, the air inlet pump is arranged close to the air inlet, and when the air inlet pump works, air is sucked by the air inlet pump and enters the air tank after passing through the water-gas separator. The exhaust pump is close to the air outlet, and the gas discharged by the exhaust pump is discharged out of the shell through the air outlet. In practical application, the gas discharged by the exhaust pump can be conveyed to the gas tank for recycling.
The gas pumped into the tank may be ambient air or other gas.
The air bag can cover the main body of the infusion bag except the infusion nozzle, the air bag is a bag-shaped body made of airtight and soft materials such as plastics, and the air bag is not easy to deform and can only expand towards the direction of the infusion bag due to the restriction of an infusion space after being inflated. The air bag is fixed on the shell through the air inlet end and the air outlet end on the air bag, and the wall surface of the air bag far away from the infusion bag is fixed on the wall surface of the infusion space, so that the air bag can only expand towards the infusion bag after being inflated.
For convenient use, the hanging rings are arranged on the two sides of the shell, and the transfusion device can be hung on the shoulders or even tied to the waist by the shoulder straps, so that the transfusion device can be used for transfusion for patients in the moving process or outside hospitals.
The air bag is slowly inflated at a constant speed through the throttle adjusting valve, the air bag expands outwards to squeeze the infusion bag, so that liquid medicine in the infusion bag uniformly enters a human body from the infusion needle to realize infusion, and the conventional infusion mode that the existing infusion bag is suspended to form pressure difference to realize infusion is thoroughly changed.
The working method of the infusion set comprises the following steps:
firstly, before use, a power supply is switched on, an inflation switch is turned on, when the air tank pressure switch detects that the air pressure in the air tank is lower than the preset air tank pressure upper limit, the air tank pressure switch is in a closed state, and an inflation pump inflates the air tank until the air tank pressure reaches the preset air tank pressure upper limit of the air tank pressure switch; when the gas tank pressure switch detects that the gas pressure in the gas tank is higher than the preset gas tank pressure upper limit, the gas tank pressure switch is switched off, the inflator pump stops working, when the gas tank pressure switch detects that the gas pressure in the gas tank is lower than the preset gas tank pressure upper limit again, the gas tank pressure switch resets, the inflator pump inflates the gas tank again until the gas tank pressure reaches the preset gas tank pressure upper limit of the gas tank pressure switch, and the process is repeated;
secondly, on the premise that the air tank is filled with air, a throttle regulating valve is preset, an infusion bag is placed in an infusion space, an infusion nozzle is exposed out of an infusion hole and faces upwards, one end of an infusion needle is inserted into the infusion nozzle, a manual valve is opened, air in the air tank flows into an air bag from the throttle regulating valve according to a preset flow, the air bag uniformly expands and extrudes the infusion bag, residual air in the infusion bag flows out of the infusion needle until liquid medicine in the infusion bag uniformly flows out of the infusion needle, the infusion needle is inserted into a human body for infusion, when an air pressure switch of the air bag detects that the air pressure in the air bag reaches a preset air bag pressure upper limit, the air bag pressure switch is closed, a buzzer is connected to alarm to prompt that infusion is finished, the manual valve is manually closed, and the infusion needle is pulled out of the human body;
thirdly, turning on an exhaust switch, switching on a normally closed electromagnetic valve and an exhaust pump to exhaust the air bag, and when the air bag pressure switch detects that the air bag pressure is less than the preset upper limit of the air bag pressure, resetting the air bag pressure switch and stopping the buzzer from alarming; and after the exhaust pump and the normally closed electromagnetic valve work for N seconds, the exhaust switch is manually switched off, so that the normally closed electromagnetic valve and the exhaust pump stop working.
In the infusion process, when the air pressure of the air tank detected by the air tank pressure switch is lower than the preset air pressure lower limit, the power supply of the air inlet pump is connected to enable the air inlet pump to work to aerate the air tank until the air pressure of the air tank detected by the air tank pressure switch reaches the preset air pressure lower limit.
The flow of the throttle regulating valve is about 2.5ML per minute generally, and can be slightly adjusted according to individual difference.
In practical application, an infusion bag containing no gas can be selected, so that the problem of air exhaust is avoided.
In practical application, the infusion is not dependent on gravity, so that the infusion is not influenced by the fact that the infusion nozzle is upwards or downwards or is flat.
The infusion apparatus can be used repeatedly after being put into use once, a patient does not need to be fixed below the infusion support during infusion, the patient can move freely, go to a toilet, get medicines and the like, and the comfort level and the freedom degree of the patient are improved. The infusion apparatus can be used for emergency treatment and outdoors, and the infusion bag does not need to be hung during emergency treatment, so that a lot of troubles are saved, and the infusion risk is reduced. Of course, the device can also be used for the first aid of wounded personnel in field operations, so that part of wounded personnel can be operated while infusion. For the personnel who need to transfuse for a long time, the infusion can be automatically transfused at home under the guidance of a doctor, the infusion in a hospital is not needed, and the pressure of the hospital is relieved.
As shown in figure 10, a manual bypass valve is arranged between the air tank and the air bag, and the air bag is quickly inflated to enable infusion and then closed. In use, the infusion bag in the infusion space is usually taken out after the air bag is exhausted. When transfusion is needed again, a new bag of transfusion bag is put in, at this time, if the gas in the air bag is too little, the manual bypass valve can be opened to rapidly inflate the air bag, the air bag is expanded to a degree that the air bag can extrude the transfusion bag to perform transfusion, then the manual bypass valve is closed, the transfusion needle is inserted into the transfusion mouth, the manual valve is opened, the air bag is expanded to extrude the transfusion bag to extrude the gas in the transfusion bag until the liquid medicine is discharged to indicate that the gas in the transfusion bag is emptied, and then the transfusion needle is pricked into the human body to perform transfusion.
The above-mentioned embodiments are only used for illustrating the application of the present invention, and are not meant to be limiting, and those skilled in the art should make various changes or substitutions within the spirit of the present invention, and shall fall within the protection scope of the present invention.
Claims (9)
1. An infusion set is characterized in that: the infusion device comprises a shell (1), an air inlet pump (2), a throttling regulating valve (3), a manual valve (4), an air bag (5), a long-closed electromagnetic valve (6) and an exhaust pump (7), wherein an infusion space is arranged on the shell, the air bag (5) and an infusion bag (8) are arranged in the infusion space, an infusion bag hole for putting in or taking out the infusion bag is formed in the top of the infusion space, and the infusion bag is put into the infusion space from the infusion bag hole so that an infusion nozzle is exposed out of the infusion bag hole; the air outlet end of the air inlet pump is connected with a throttling regulating valve, the air outlet end of the throttling regulating valve is connected with a manual valve, the air outlet end of the manual valve is connected with the air inlet end of an air bag (5), the air outlet end of the air bag (5) is sequentially connected with a normally-closed electromagnetic valve (6) and an exhaust pump (7) through pipelines, and a power switch (11), an inflation switch (12) and an exhaust switch (13) are arranged on the shell; the air bag is provided with an air bag pressure switch (51).
2. The infusion set according to claim 1, characterized in that: a gas tank (9) is arranged between the air inlet pump and the throttle regulating valve, and a gas tank pressure switch (91) is arranged on the gas tank (9); the power supply is connected with the air charging switch and the air discharging switch through leads respectively, and is connected with the air inlet pump, the air discharging pump, the air bag pressure switch and the normally closed electromagnetic valve through leads; the inflation switch is connected with the air tank pressure switch and the air bag pressure switch through leads, and the exhaust switch is connected with the normally closed electromagnetic valve and the exhaust pump through leads; a buzzer (14) is arranged between the inflation switch and the air bag pressure switch, and the air tank pressure switch is connected with the air inlet pump through a lead.
3. The infusion set according to claim 2, characterized in that: the air tank pressure switch is a normally closed air pressure switch, when the inflation switch is closed, when the air tank pressure switch detects that the air pressure in the air tank is lower than the preset air tank pressure upper limit, the inflation pump inflates the air tank until the air tank pressure reaches the preset air tank pressure upper limit of the air tank pressure switch; when the gas tank pressure switch detects that the gas pressure in the gas tank is lower than the preset gas tank pressure upper limit again, the gas tank pressure switch resets, and the inflator pump inflates the gas tank until the gas tank pressure reaches the preset gas tank pressure upper limit again.
4. The infusion set according to claim 2, characterized in that: when the air bag pressure switch is closed, when the air bag pressure switch detects that the air pressure in the air bag reaches the preset air bag pressure upper limit, the air bag pressure switch is closed, so that the buzzer is connected with an alarm to prompt that the infusion is finished, the manual infusion valve is manually closed, the exhaust switch is closed, the normally-closed electromagnetic valve and the exhaust pump are connected to exhaust the air bag, and when the air bag pressure switch detects that the air bag pressure is smaller than the preset air bag pressure upper limit, the air bag pressure switch is reset, and the buzzer stops alarming; and after the exhaust pump and the normally closed electromagnetic valve work for N seconds, the exhaust switch is manually switched off, so that the normally closed electromagnetic valve and the exhaust pump stop working.
5. The infusion set according to claim 3, characterized in that: the N seconds are generally 10 to 15 seconds.
6. The infusion set according to claim 1, characterized in that: an adjusting knob of the balance valve is exposed outside through the shell.
7. The infusion set according to claim 1, characterized in that: a manual bypass valve is provided between the gas canister and the bladder.
8. The operating method of the infusion apparatus according to any one of claim 1 to claim 7, characterized in that:
firstly, before use, a power supply is switched on, an inflation switch is turned on, when the air tank pressure switch detects that the air pressure in the air tank is lower than the preset air tank pressure upper limit, the air tank pressure switch is in a closed state, and an inflation pump inflates the air tank until the air tank pressure reaches the preset air tank pressure upper limit of the air tank pressure switch; when the gas tank pressure switch detects that the gas pressure in the gas tank is higher than the preset gas tank pressure upper limit, the gas tank pressure switch is switched off, the inflator pump stops working, when the gas tank pressure switch detects that the gas pressure in the gas tank is lower than the preset gas tank pressure upper limit again, the gas tank pressure switch resets, the inflator pump inflates the gas tank again until the gas tank pressure reaches the preset gas tank pressure upper limit of the gas tank pressure switch, and the process is repeated;
secondly, on the premise that the air tank is filled with air, a throttle regulating valve is preset, an infusion bag is placed in an infusion space, an infusion nozzle is exposed out of an infusion hole and faces upwards, one end of an infusion needle is inserted into the infusion nozzle, a manual valve is opened, air in the air tank flows into an air bag from the throttle regulating valve according to a preset flow, the air bag uniformly expands and extrudes the infusion bag, residual air in the infusion bag flows out of the infusion needle until liquid medicine in the infusion bag uniformly flows out of the infusion needle, the infusion needle is inserted into a human body for infusion, when an air pressure switch of the air bag detects that the air pressure in the air bag reaches a preset air bag pressure upper limit, the air bag pressure switch is closed, a buzzer is connected to alarm to prompt that infusion is finished, the manual valve is manually closed, and the infusion needle is pulled out of the human body;
thirdly, turning on an exhaust switch, switching on a normally closed electromagnetic valve and an exhaust pump to exhaust the air bag, and when the air bag pressure switch detects that the air bag pressure is less than the preset upper limit of the air bag pressure, resetting the air bag pressure switch and stopping the buzzer from alarming; and after the exhaust pump and the normally closed electromagnetic valve work for N seconds, the exhaust switch is manually switched off, so that the normally closed electromagnetic valve and the exhaust pump stop working.
9. The method of operating an infusion set according to claim 8, wherein: in the infusion process, when the air pressure of the air tank detected by the air tank pressure switch is lower than the preset air pressure lower limit, the power supply of the air inlet pump is connected to enable the air inlet pump to work to aerate the air tank until the air pressure of the air tank detected by the air tank pressure switch reaches the preset air pressure lower limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010683704.9A CN111686340A (en) | 2020-07-16 | 2020-07-16 | Infusion apparatus and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010683704.9A CN111686340A (en) | 2020-07-16 | 2020-07-16 | Infusion apparatus and working method thereof |
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| CN111686340A true CN111686340A (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010683704.9A Withdrawn CN111686340A (en) | 2020-07-16 | 2020-07-16 | Infusion apparatus and working method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114306995A (en) * | 2021-12-01 | 2022-04-12 | 泰州市玉林动力机械有限公司 | An airborne high-altitude foam fire extinguishing device |
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| CA2126320A1 (en) * | 1992-01-24 | 1993-08-05 | Kenneth W. Rake | Platen pump |
| CN2376926Y (en) * | 1999-05-28 | 2000-05-10 | 徐允中 | Portable pressure transfusion system for infusion bag |
| CN2623248Y (en) * | 2003-06-23 | 2004-07-07 | 郭庆泰 | Electricly-pressurized transfusion device |
| CN201108641Y (en) * | 2007-10-26 | 2008-09-03 | 凌孝民 | Portable intelligent transfusion utensil |
| CN203447574U (en) * | 2013-08-26 | 2014-02-26 | 苏州鼎诺医疗设备有限公司 | Infusion pump |
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2020
- 2020-07-16 CN CN202010683704.9A patent/CN111686340A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2126320A1 (en) * | 1992-01-24 | 1993-08-05 | Kenneth W. Rake | Platen pump |
| CN2376926Y (en) * | 1999-05-28 | 2000-05-10 | 徐允中 | Portable pressure transfusion system for infusion bag |
| CN2623248Y (en) * | 2003-06-23 | 2004-07-07 | 郭庆泰 | Electricly-pressurized transfusion device |
| CN201108641Y (en) * | 2007-10-26 | 2008-09-03 | 凌孝民 | Portable intelligent transfusion utensil |
| CN203447574U (en) * | 2013-08-26 | 2014-02-26 | 苏州鼎诺医疗设备有限公司 | Infusion pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114306995A (en) * | 2021-12-01 | 2022-04-12 | 泰州市玉林动力机械有限公司 | An airborne high-altitude foam fire extinguishing device |
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Application publication date: 20200922 |