CN116672540A - Flow and flow speed self-control type disposable infusion pump - Google Patents
Flow and flow speed self-control type disposable infusion pump Download PDFInfo
- Publication number
- CN116672540A CN116672540A CN202310966315.0A CN202310966315A CN116672540A CN 116672540 A CN116672540 A CN 116672540A CN 202310966315 A CN202310966315 A CN 202310966315A CN 116672540 A CN116672540 A CN 116672540A
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- water pump
- shell
- movable rod
- transfer line
- flow rate
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- 238000001802 infusion Methods 0.000 title claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000003814 drug Substances 0.000 claims abstract description 31
- 230000008878 coupling Effects 0.000 claims abstract description 15
- 238000010168 coupling process Methods 0.000 claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 85
- 230000001681 protective effect Effects 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000000202 analgesic effect Effects 0.000 description 65
- 239000007789 gas Substances 0.000 description 17
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 14
- 230000002829 reductive effect Effects 0.000 description 12
- 229910052786 argon Inorganic materials 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 210000004204 blood vessel Anatomy 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 229940079593 drug Drugs 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000857 drug effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 206010033296 Overdoses Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 210000001520 comb Anatomy 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
-
- 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
- A61M5/16804—Flow controllers
-
- 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
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/822—Combinations of dissimilar mixers with moving and non-moving stirring devices in the same receptacle
-
- 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
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1652—Filter with duct, e.g. filtering element incorporated in a flow line, tube, duct
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0468—Liquids non-physiological
- A61M2202/048—Anaesthetics
-
- 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
- A61M2205/3327—Measuring
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/22—Mixing of ingredients for pharmaceutical or medical compositions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2202—Mixing compositions or mixers in the medical or veterinary field
Abstract
The invention relates to the technical field of medical appliances, in particular to a flow rate and flow velocity automatic control type disposable infusion pump. Including the shell body, shell body rigid coupling and intercommunication have the transfer line, and the transfer line is provided with the medicine mouth of annotating, and filter and control module are installed to the transfer line, and the internally mounted of shell body has the water pump, and the shell body rigid coupling has the gas holder, and the inside sliding connection of gas holder has the piston rod, and the shell body rigid coupling has the installation shell, and the piston rod has the pressure sensor in the inside sliding connection of installation shell, and the rigid coupling has the spring between pressure sensor and the piston rod, and the pressure sensor is connected with the water pump electricity. According to the invention, the piston rod is driven to move by the gas in the gas storage tank through thermal expansion and contraction, so that the compression amount of the spring between the pressure sensor and the piston rod is changed, the force applied to the pressure sensor is changed, and the pressure sensor transmits a signal to the water pump, so that the water pump is regulated to proper power.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a flow rate and flow velocity automatic control type disposable infusion pump.
Background
The disposable infusion pump is portable, simple to operate and compact in structure, is widely applied to occasions such as hospitals and ambulances, has small volume and light weight compared with the traditional infusion pump, can be carried about, and is convenient for patients to use as emergency equipment.
In the process of injecting the analgesic by the patient by using the disposable infusion pump, the change of the ambient temperature can lead to the change of the viscosity of the analgesic, and the speed of the analgesic entering a human body is changed, so that the effect of the analgesic is influenced, the pain is caused by overmedication of the patient and discomfort or overmedication, the viscosity of the analgesic is inconsistent, the drug property and the flow rate of the analgesic are uneven, and the effect of the analgesic is influenced.
Disclosure of Invention
In order to overcome the disadvantages mentioned in the background art, the present invention provides a flow rate and flow velocity self-controlled disposable infusion pump.
The technical scheme of the invention is as follows: the utility model provides a disposable infusion pump of flow velocity of flow automatic control formula, which comprises an outer shell, shell rigid coupling and intercommunication have the transfer line, the transfer line is provided with the injection mouth, filter and control module are installed to the transfer line, control module is provided with the button that is used for controlling the water pump power, the transfer line is provided with out the liquid end, the internally mounted of shell has the water pump, transfer line and water pump intercommunication, the water pump intercommunication has the reservoir, the reservoir is located the inside of shell, the reservoir is ventilative impermeable material, the shell rigid coupling has the gas holder, the inside sliding connection of gas holder has the piston rod, the shell rigid coupling has the installation shell, the piston rod is in the inside sliding connection of installation shell, the internally mounted of installation shell has pressure sensor, the rigid coupling has the spring between pressure sensor and the piston rod, pressure sensor is connected with the water pump electricity.
Further, the shell body is communicated with a liquid injection pipe, a one-way valve is arranged in the liquid injection pipe, a liquid storage cavity is arranged between the shell body and the liquid storage bag, and exhaust liquid is injected into the liquid storage cavity and used for accelerating air bubbles in the liquid storage bag to enter the liquid storage cavity.
Further, the transfer line rigid coupling has the fixed shell, and the internally mounted of fixed shell has trigger switch, and trigger switch is connected with the water pump electricity, and transfer line sliding connection has the movable rod, and the movable rod runs through the transfer line, and the movable rod is in the inside sliding connection of fixed shell, and the movable rod cooperates with trigger switch, and the rigid coupling has the extension spring between movable rod and the transfer line for prevent that the liquid medicine pressure in the transfer line is too big.
Further, the movable rod is positioned at one end of the infusion tube close to the outer shell and used for preventing the movable rod from being incapable of being matched with the trigger switch.
Further, the infusion tube is fixedly connected with an alarm, the alarm is electrically connected with the trigger switch, and the alarm is used for reminding a patient that the liquid medicine cannot circulate.
Further, the inside rotation of transfer line is connected with the swivel becket of symmetric distribution, and the rigid coupling has spiral stirring leaf between the swivel becket of symmetric distribution, and the stirring leaf is located between shell body and the movable rod for stir the liquid medicine.
Further, one end of the movable rod, which is positioned in the infusion tube, is fixedly connected with a ball block, the ball block is close to the stirring blade, and the liquid medicine flowing in a spiral way impacts the ball block to mix the liquid medicine.
Further, the ball block is provided with evenly distributed protrusions for further mixing of the liquid medicine.
Further, the control module is fixedly connected with a balloon through a pull rope, a pressure sensing module is arranged in the balloon, and the pressure sensing module is used for controlling the power of the water pump.
Further, the control module is hinged with a protective shell, the button of the control module is located inside the protective shell, a torsion spring is fixedly connected between the protective shell and the control module, and the protective shell is used for preventing the button from being touched by mistake.
According to the invention, through the property of thermal expansion and contraction of gas in the gas storage tank, when the surrounding temperature changes, and the viscosity of the liquid medicine changes, the piston rod moves left and right, and the compression amount of the spring between the piston rod and the pressure sensor is changed, so that the pressure sensor controls the power of the pump, the flow rate of the liquid medicine in the infusion tube is unchanged, and the uniformity of the drug effect of the liquid medicine is ensured; the liquid medicine is stirred by the stirring blade, the liquid medicine stirred by the stirring blade impacts the ball block, the ball block and the convex blocks uniformly distributed on the ball block disperse the analgesic, so that the inside of the analgesic is more uniform, and the local viscosity of the inside of the analgesic is prevented from being inconsistent, thereby causing unstable infusion speed and drug effect of the analgesic; when the transfer line can't circulate, the inside pressure of transfer line increases, makes movable rod upwards move, and movable rod and trigger switch contact, trigger switch will signal transmission to pump and siren, and the pump stop operation to the siren sends out the alarm and reminds the patient, prevents that transfer line internal pressure from being too big and damaging, avoids the liquid medicine can't enter into the patient in vivo, leads to the painful sense aggravation of patient.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of the positional relationship between the parts of the invention, such as the fixed housing and the alarm;
FIG. 3 is a schematic perspective view of the piston rod and mounting housing of the present invention;
FIG. 4 is a schematic view of the positional relationship between the infusion tube and the fixed housing of the present invention;
FIG. 5 is a schematic perspective view of the movable rod, stirring blade and other parts of the invention;
FIG. 6 is a diagram showing the connection between a control module and a protective shell according to the present invention;
fig. 7 is a perspective sectional view of the protective case of the present invention.
Reference numerals in the figures: 101. the device comprises an outer shell, 103, a transfusion tube, 104, a medicine injection port, 105, a filter, 106, a control module, 107, a liquid outlet end, 108, a water pump, 109, a liquid storage bag, 110, a gas storage tank, 111, a piston rod, 112, a mounting shell, 113, a pressure sensor, 114, a liquid injection tube, 115, a liquid storage cavity, 201, a fixed shell, 202, a trigger switch, 203, a movable rod, 204, an alarm, 205, a stirring blade, 206, a ball block, 301, a ball bag, 302 and a protective shell.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and examples, it being understood that the specific examples described herein are for illustration only and are not intended to limit the present invention.
Example 1: 1-3, the self-control disposable infusion pump for flow and flow speed comprises an outer shell 101, a transfusion tube 103 is fixedly connected and communicated with the right side of the outer shell 101, the transfusion tube 103 is provided with a drug injection port 104, the transfusion tube 103 is provided with a filter 105 and a control module 106, the filter 105 filters bacteria in liquid medicine to avoid infection of patients, the control module 106 is provided with a button for controlling the power increase of a water pump 108, the transfusion tube 103 is provided with a liquid outlet end 107, the right side of the inner part of the outer shell 101 is provided with the water pump 108, the control module 106 controls the power increase of the water pump 108, the transfusion tube 103 is communicated with the water pump 108, the water pump 108 is communicated with a liquid storage bag 109, the liquid storage bag 109 is positioned in the inner part of the outer shell 101, the liquid storage bag 109 is made of breathable and impermeable material, the outer shell 101 is fixedly connected with a gas storage tank 110, gas in the gas storage tank 110 is argon, the volume change of the argon is obvious due to temperature change, the inside of the air storage tank 110 is slidingly connected with a piston rod 111, the outer shell 101 is fixedly connected with a mounting shell 112, the mounting shell 112 is positioned on the right side of the air storage tank 110, the piston rod 111 is in sliding connection with the inside of the mounting shell 112, the right side of the inside of the mounting shell 112 is provided with a pressure sensor 113, a spring is fixedly connected between the pressure sensor 113 and the piston rod 111, the pressure sensor 113 is electrically connected with a water pump 108, the force born by the pressure sensor 113 is changed so as to control the power change of the water pump 108, the outer shell 101 is communicated with a liquid injection pipe 114, a one-way valve for enabling liquid to enter the outer shell 101 is arranged in the inner part of the liquid injection pipe 114, a liquid storage cavity 115 is arranged between the outer shell 101 and the liquid storage 109, heated exhaust liquid is injected into the inside of the liquid storage cavity 115, the exhaust liquid cannot enter the liquid storage 109, and the heated exhaust liquid and the medicine in the liquid storage 109 generate heat transfer, the air bubbles in the liquid storage bag 109 are accelerated to enter the liquid storage cavity 115, the argon gas in the air storage tank 110 expands with heat and contracts with cold, the argon gas drives the piston rod 111 to move, so that the compression amount of the spring between the pressure sensor 113 and the piston rod 111 is changed, the force received by the pressure sensor 113 is changed, the pressure sensor 113 transmits signals to the water pump 108, the water pump 108 is enabled to adjust to proper power, the flow rate of liquid medicine in the infusion tube 103 is guaranteed to be unchanged, and the medicine effect is enabled to be kept uniform.
As shown in fig. 6 and 7, the control module 106 is fixedly connected with a balloon 301 through a pull rope, a pressure sensing module is mounted in the balloon 301 and used for reducing the power of the water pump 108, the liquid medicine is prevented from entering a human body at an excessively high speed, discomfort is caused to a patient, the control module 106 is hinged with a protective shell 302, a button of the control module 106 is located in the protective shell 302, a torsion spring for resetting the protective shell 302 is fixedly connected between the protective shell 302 and the control module 106, the protective shell 302 is used for shielding the button, and the button is prevented from being touched by the patient by mistake, so that the dosage of the patient is increased, and discomfort is caused to the patient.
When the device is used for injecting the analgesic into a patient, medical staff firstly injects the analgesic from the drug injection port 104, the analgesic enters the liquid storage bag 109, so that the liquid storage bag 109 is expanded to a state shown in fig. 2, after the liquid storage bag 109 is injected with the analgesic, air bubbles are formed in the liquid storage bag 103 or the liquid storage bag 109, the medical staff injects heated exhaust liquid into the liquid injection pipe 114, the exhaust liquid enters the liquid storage cavity 115 and does not enter the liquid storage bag 109, and due to the air-permeable and liquid-impermeable characteristics of the material of the liquid storage bag 109, the exhaust liquid exchanges heat with the analgesic in the liquid storage bag 109, so that the gas in the liquid storage bag 109 is accelerated to enter the liquid storage cavity 115, and the time for the gas to leave the liquid storage bag 109 is shortened.
At this time, the gas exists in the infusion tube 103 between the medicine injection port 104 and the liquid outlet end 107, the medical staff turns on the water pump 108, the water pump 108 conveys the analgesic in the liquid storage bag 109 into the infusion tube 103, the analgesic extrudes the gas in the infusion tube 103 to the liquid outlet end 107, the gas in the infusion tube 103 is discharged, when the analgesic flows out from the liquid outlet end 107, the medical staff turns off the water pump 108, then the medical staff inserts the liquid outlet end 107 into a blood vessel of a patient, the medical staff turns on the water pump 108, the water pump 108 conveys the analgesic in the liquid storage bag 109 into the infusion tube 103, the analgesic flows through the filter 105, bacteria in the analgesic are filtered by the filter 105, the patient is prevented from being infected, the analgesic in the infusion tube 103 is conveyed to the liquid outlet end 107, and the analgesic enters the blood vessel of the patient, and the patient is continuously analgesic.
Because each patient has a difference in the situation, in the process of using the device by different patients, partial patients feel uncomfortable due to the fact that the speed of the analgesic entering the body is too fast, at the moment, the patient presses the balloon 301, the pressure detected by the pressure sensing module in the balloon 301 is increased, the pressure sensing module transmits information to the pump 108, the power of the water pump 108 is reduced, accordingly, the flow rate of the analgesic in the infusion tube 103 is reduced, the uncomfortable feeling of the patient is gradually reduced, then the patient informs the medical staff, the medical staff reduces the power of the water pump 108, the flow rate of the analgesic is reduced, the patient adapts to the flow rate of the analgesic, the patient is prevented from injecting the analgesic excessively, and the patient feels uncomfortable.
Because the pain feeling of the patient is not sustained, when the patient feels that the pain feeling is increased, the patient turns the protective shell 302, the torsion spring between the protective shell 302 and the control module 106 is subjected to torsion action, then the patient presses the button of the control module 106, the control module 106 receives a signal and transmits the signal to the water supply pump 108, the power of the water pump 108 is instantaneously increased and immediately recovered, the flow of the analgesic in the infusion tube 103 is increased by 0.5ml, the analgesic injected by the patient is increased, the patient is immediately analgesic after the analgesic enters the blood vessel of the patient, after the patient breaks away the hands from the protective shell 302, the protective shell 302 resets under the torsion action of the torsion spring between the protective shell 302 and the control module 106, the button of the control module 106 is blocked by the protective shell 302, the patient is prevented from touching by mistake, the button of the control module 106 can be pressed once every 15 minutes, the patient is prevented from continuously pressing the button, the patient is prevented from injecting the analgesic excessively, and the physical health of the patient is endangered.
The button of the existing control module 106 needs to be continuously pressed to increase the power of the water pump 108, so as to increase the dosage of the analgesic, to prevent the button of the control module 106 from being mistakenly touched, so that the patient can inject the analgesic excessively, but in the use process, the patient often cannot know the triggering mode of the button of the control module 106 due to negligence of medical staff, so that the patient continuously presses the button of the control module 106 in extremely painful condition, but the dosage of the analgesic injected by the patient cannot be increased, so that the pain of the patient cannot be relieved, therefore, after the button of the control module 106 of the device is pressed, the power of the water pump 108 is immediately increased, the dosage of the analgesic is rapidly increased, the pain of the patient is relieved, and the button of the control module 106 is prevented from being mistakenly touched by the protective shell 302, so that the dosage of the patient is increased.
The disposable infusion pump is characterized in that a patient can carry the infusion pump to freely move, when the patient carries the infusion pump to the outside or different rooms to move, due to the temperature difference, when the temperature is increased, the viscosity of the analgesic is reduced, so that the flow rate of the analgesic in the infusion tube 103 is increased, at the moment, argon in the air storage tank 110 senses the temperature increase to expand, the argon extrudes the piston rod 111, so that the piston rod 111 moves rightwards, a spring between the piston rod 111 and the pressure sensor 113 is compressed, the pressure received by the pressure sensor 113 is increased, the pressure sensor 113 transmits a signal to the water pump 108, the power of the water pump 108 is reduced, the flow rate of the analgesic in the infusion tube 103 is reduced, the flow rate of the analgesic is kept unchanged, and the excessive medication of the patient is avoided.
When the temperature is reduced, the viscosity of the analgesic increases, so that the resistance to the analgesic increases, the flow rate of the analgesic in the infusion tube 103 decreases, the analgesic injected into the patient is too little, at the moment, argon in the gas storage tank 110 is contracted due to the reduced temperature, the pressure in the gas storage tank 110 decreases, so that the piston rod 111 moves leftwards, the compression amount of a spring between the piston rod 111 and the pressure sensor 113 decreases, the pressure received by the pressure sensor 113 decreases, the pressure sensor 113 transmits a signal to the water pump 108, the power of the water pump 108 increases, the flow rate of the analgesic in the infusion tube 103 increases, so that the flow rate of the analgesic is kept unchanged, the flow rate of the analgesic is prevented from decreasing, the analgesic effect on the patient is reduced, and when the analgesic is infused, the water pump 108 stops working, and medical staff pulls out the liquid outlet end 107 from the blood vessel of the patient.
Example 2: on the basis of embodiment 1, as shown in fig. 4 and 5, the fixed shell 201 is fixedly connected with the transfer line 103, trigger switch 202 is installed on the inside upside of fixed shell 201, trigger switch 202 is electrically connected with water pump 108, trigger switch 202 is used for shutting down water pump 108, prevent that the inside water pressure of transfer line 103 is too big, transfer line 103 sliding connection has movable rod 203, movable rod 203 is located the upper end of transfer line 103, avoid the obstructed position of transfer line 103 to be located the left side of movable rod 203, lead to movable rod 203 unable to cooperate with trigger switch 202, thereby cause water pump 108 unable to close, make transfer line 103 damage, movable rod 203 runs through transfer line 103, movable rod 203 is in the inside sliding connection of fixed shell 201, movable rod 203 is located the below of trigger switch 202, the rigid coupling has the extension spring that is used for resetting movable rod 203 between movable rod 203 and the transfer line 103, the transfer line 103 rigid coupling has alarm 204, alarm 204 and trigger switch 202 electrical connection, alarm 204 is used for reminding the liquid medicine circulation in patient's 103, the inside rotation of transfer line 103 is connected with two rotation rings that are symmetrically distributed, lead to the movable rod 203 unable cooperation with trigger switch 202, thereby cause water pump 108 to be unable to be closed, make transfer line 103 damage, the damage, movable rod 203 runs through the inside the movable rod 205, the impeller 205 has evenly distributed impeller 205, the inside impeller is located the impeller is located on the inside impeller, and has evenly-shaped impeller 206, and has a pair of impeller, and is located outside impeller, and is located in the impeller, and is not evenly connected with impeller, and is located in the impeller, and is located inside impeller, and is further evenly, and has a ball is not evenly has a impeller, and has a mixing impeller, and has.
In the process that a patient uses the device, the patient possibly presses or winds the infusion tube 103, so that the infusion tube 103 cannot circulate, the analgesic cannot be injected into the patient, when the infusion tube 103 cannot circulate, the pressure in the infusion tube 103 is increased along with the continuous operation of the water pump 108, so that the movable rod 203 drives the ball 206 to move upwards, a tension spring between the movable rod 203 and the infusion tube 103 is stretched, when the movable rod 203 contacts with the trigger switch 202, the movable rod 203 stops moving, the trigger switch 202 transmits a signal to the water pump 108 and the alarm 204, the water pump 108 stops running, the infusion tube 103 is prevented from being damaged due to overlarge internal pressure, the alarm 204 gives an alarm, the patient hears the alarm and then combs the infusion tube 103, when the analgesic in the infusion tube 103 normally flows, the pressure in the infusion tube 103 is reduced, the movable rod 203 moves downwards under the action of tension of the tension spring between the movable rod 203 and the infusion tube 103, the movable rod 203 and the trigger switch 202 loses contact, the trigger switch 202 transmits the signal to the water pump 108 and the alarm 204, the alarm 204 is closed, the water pump 108 is started, and the analgesic in the infusion tube 103 is caused to be injected into the patient.
In the flowing process of the analgesic in the infusion tube 103, the analgesic drives the stirring blade 205 to rotate, the stirring blade 205 stirs the analgesic, the analgesic stirred by the stirring blade 205 impacts the ball block 206, the ball block 206 and the bumps uniformly distributed on the ball block disperse the analgesic, so that the inside of the analgesic is more uniform, the partial viscosity of the inside of the analgesic is prevented from being inconsistent, the infusion speed and the drug effect of the analgesic are unstable, and the analgesic effect of the analgesic is reduced.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a disposable infusion pump of flow velocity of flow automatic control formula, including shell body (101), shell body (101) rigid coupling and intercommunication have transfer line (103), transfer line (103) are provided with injection port (104), filter (105) and control module (106) are installed to transfer line (103), control module (106) are provided with the button that is used for controlling water pump (108) power, transfer line (103) are provided with out liquid end (107), the internally mounted of shell body (101) has water pump (108), transfer line (103) and water pump (108) intercommunication, water pump (108) intercommunication has reservoir (109), reservoir (109) are located the inside of shell body (101), reservoir (109) are ventilative impermeable material, its characterized in that: the novel air pump is characterized by further comprising an air storage tank (110), wherein the air storage tank (110) is fixedly connected to the outer shell body (101), a piston rod (111) is slidably connected inside the air storage tank (110), an installation shell (112) is fixedly connected to the outer shell body (101), the piston rod (111) is slidably connected to the installation shell (112), a pressure sensor (113) is mounted inside the installation shell (112), a spring is fixedly connected between the pressure sensor (113) and the piston rod (111), and the pressure sensor (113) is electrically connected with the water pump (108).
2. A flow rate and flow velocity self-controlled single use infusion pump as claimed in claim 1, wherein: the outer shell (101) is communicated with the liquid injection pipe (114), a one-way valve is arranged in the liquid injection pipe (114), a liquid storage cavity (115) is arranged between the outer shell (101) and the liquid storage bag (109), and exhaust liquid is injected into the liquid storage cavity (115) and used for accelerating air bubbles in the liquid storage bag (109) to enter the liquid storage cavity (115).
3. A flow rate and flow velocity self-controlled single use infusion pump as claimed in claim 1, wherein: the infusion tube (103) is fixedly connected with a fixed shell (201), a trigger switch (202) is arranged in the fixed shell (201), the trigger switch (202) is electrically connected with the water pump (108), the infusion tube (103) is slidably connected with a movable rod (203), the movable rod (203) penetrates through the infusion tube (103), the movable rod (203) is slidably connected in the fixed shell (201), the movable rod (203) is matched with the trigger switch (202), and a tension spring is fixedly connected between the movable rod (203) and the infusion tube (103) and used for preventing the pressure of liquid medicine in the infusion tube (103) from being overlarge.
4. A flow rate self-regulating, single-use infusion pump as defined in claim 3, wherein: the movable rod (203) is positioned at one end of the infusion tube (103) close to the outer shell (101) and is used for preventing the movable rod (203) from being incapable of being matched with the trigger switch (202).
5. A flow rate self-regulating, single-use infusion pump as defined in claim 3, wherein: an alarm (204) is fixedly connected to the infusion tube (103), the alarm (204) is electrically connected with the trigger switch (202), and the alarm (204) is used for reminding a patient that the liquid medicine cannot circulate.
6. A flow rate self-regulating, single-use infusion pump as defined in claim 4, wherein: the inside rotation of transfer line (103) is connected with the swivel becket of symmetric distribution, and the rigid coupling has helical stirring leaf (205) between the swivel becket of symmetric distribution, and stirring leaf (205) are located between shell body (101) and movable rod (203) for stir the liquid medicine.
7. A flow rate self-regulating, single-use infusion pump as defined in claim 6, wherein: one end of the movable rod (203) positioned in the infusion tube (103) is fixedly connected with a ball block (206), the ball block (206) is close to the stirring blade (205), and the spirally flowing liquid medicine impacts the ball block (206) to mix the liquid medicine.
8. A flow rate self-regulating, single-use infusion pump as defined in claim 7, wherein: the ball blocks (206) are provided with evenly distributed protrusions for further mixing of the liquid medicine.
9. A flow rate and flow velocity self-controlled single use infusion pump as claimed in claim 1, wherein: the control module (106) is fixedly connected with a balloon (301) through a pull rope, a pressure sensing module is arranged in the balloon (301), and the pressure sensing module is used for controlling the power of the water pump (108).
10. A flow rate and flow velocity self-controlled single use infusion pump as claimed in claim 9, wherein: the control module (106) is hinged with a protective shell (302), a button of the control module (106) is located inside the protective shell (302), a torsion spring is fixedly connected between the protective shell (302) and the control module (106), and the protective shell (302) is used for preventing the button from being touched by mistake.
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| CN202310966315.0A CN116672540B (en) | 2023-08-01 | 2023-08-01 | Flow and flow speed self-control type disposable infusion pump |
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| CN202310966315.0A CN116672540B (en) | 2023-08-01 | 2023-08-01 | Flow and flow speed self-control type disposable infusion pump |
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| CN116672540B CN116672540B (en) | 2023-10-31 |
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|---|---|
| CN116672540B (en) | 2023-10-31 |
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