CN104815367A - Method and device for releasing locking pressure in infusion apparatus and infusion pump - Google Patents
Method and device for releasing locking pressure in infusion apparatus and infusion pump Download PDFInfo
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- CN104815367A CN104815367A CN201510246074.8A CN201510246074A CN104815367A CN 104815367 A CN104815367 A CN 104815367A CN 201510246074 A CN201510246074 A CN 201510246074A CN 104815367 A CN104815367 A CN 104815367A
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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
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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
- A61M5/168—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
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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
- A61M5/168—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
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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
- A61M5/168—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
- A61M5/16886—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 for measuring fluid flow rate, i.e. flowmeters
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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
- A61M5/168—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
- A61M5/172—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 electrical or electronic
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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
- A61M5/168—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
- A61M2005/16863—Occlusion detection
-
- 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
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a method for releasing the locking pressure in an infusion apparatus. The method comprises identifying whether the operation state of an infusion pump is a forward direction infusion state or not; determining whether the blocking pressure generated by the blocking liquid in the infusion apparatus is larger than or equal to a pressure alarm threshold value or not if yes; stopping the forward direction infusion and releasing the blocking liquid in the infusion apparatus if yes; determining whether the blocking pressure is smaller than or equal to the pressure alarm threshold value or not or whether the liquid released by the blocking liquid is larger than or equal to a liquid release threshold value or not; stopping releasing the blocking liquid if yes. According to the method for releasing the locking pressure in the infusion apparatus, the harm to a human body due to the instant injection of the accumulated liquid of the blocking portion of the infusion apparatus can be effectively avoided and the infusion safety is improved. In addition, the invention also provides a device for releasing the locking pressure in the infusion apparatus and the infusion pump.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of transfusion device internal congestion earth pressure release method, device and infusion pump.
Background technology
Infusion pump is that one can accurately control transfusion speed and amount of infusion, and can carry out reporting to the police to abnormal conditions such as bubble, empty liquid, tube for transfusion obstructions and automatically cut off a kind of intelligent instrument of transfusion path.Be usually used in the situation needing strictly to control amount of infusion and dose, as the medicine that boosts in application, anti-arrhythmic medicine, venous transfusion of infantile or intravenous anesthesia etc.
In transfusion operation process, when transfusion device bending occurs or the situation such as to be pressed, transfusion device can be caused to block.If infusion pump continues transfusion, because transfusion device material itself has telescopic resilience, transfusion device internal liquid meeting cumulative rises, until internal liquid pressure reaches alarm threshold value, just can trigger to block and report to the police, stopping infusion, sends corresponding warning.Infusion pump is when stopping infusion, and transfusion device can block by the pump housing, and liquid flow in cut-off transfusion device, makes the transfusion device intraluminal fluid scale of construction between infusion pump to transfusion device obstruction place and pressure remain unchanged.The mode that process transfusion is blocked is generally check transfusion device, when transfusion device there is bending or by pressure time, artificially transfusion device is stretching or remove and press object, make infusion pipeline unimpeded.The liquid added up due to transfusion device internal congestion part can produce certain pressure, and when infusion pipeline is unimpeded, the liquid of transfusion device obstruction accumulation can being directly inputted in human body instantaneously.For the medicine of infusion pump Clinical practice, cause uncomfortable when injecting human body instantaneously possibly, the moment of some drugs injects in a large number and even can bring harm to patient.The liquid how effectively avoiding transfusion device obstruction to accumulate works the mischief injecting human body instantaneously, and the safety improving transfusion is the technical problem being badly in need of at present solving.
Summary of the invention
Based on this, be necessary for above-mentioned technical problem, provide a kind of liquid can effectively avoiding transfusion device obstruction to accumulate to work the mischief injecting human body instantaneously, improve the transfusion device internal congestion earth pressure release method of infusion safety, device and infusion pump.
A kind of transfusion device internal congestion earth pressure release method, described method comprises:
Whether the running status of identification infusion pump is forward transfusion state;
If so, then judge whether the blockage pressure that the block liquid in transfusion device produces is more than or equal to pressure alarm threshold value;
If so, then stop forward transfusion, and discharge the block liquid in described transfusion device;
Judge whether described blockage pressure is less than or equal to earth pressure release threshold value, or whether the amount of liquid that described block liquid has discharged is more than or equal to liquid release threshold value;
If so, the described block liquid of release is then stopped.
Wherein in an embodiment, after the step of described stopping forward transfusion, also comprise:
Obtain the total amount of liquid inputted in described transfusion device;
After the step of the described block liquid of described stopping release, also comprise:
The amount of liquid discharged described in acquisition;
Calculate the difference of described total amount of liquid and the described amount of liquid discharged, obtain actual amount of infusion.
Wherein in an embodiment, whether the running status of described identification infusion pump is that the step of forward transfusion state comprises:
The signal that receiving sensor exports when detecting the kinestate of code-disc, described sensor comprises first sensor and the second sensor, described code-disc comprises the first code-disc and the second code-disc, described first sensor is corresponding with described first code-disc, described second sensor is corresponding with described second code-disc, described first sensor exports the first signal, and described second sensor exports secondary signal;
When judging described first invalidating signal, whether described secondary signal is invalid;
When if so, then again judging described first invalidating signal, whether described secondary signal is effective;
When if so, then again judging that described first signal is effective, whether described secondary signal is effective;
When if so, then judging that described first signal is effective further, whether described secondary signal is invalid.
Wherein in an embodiment, the running status of described identification infusion pump also comprises stress-released condition, before the step of the block liquid in the described transfusion device of described release, also comprises:
Whether the running status identifying described infusion pump is stress-released condition, if so, then performs the step of the block liquid in the described transfusion device of described release.
Wherein in an embodiment, whether the running status of the described infusion pump of described identification is that the step of stress-released condition comprises:
When judging described first invalidating signal, whether described secondary signal is invalid;
When if so, then again judging that described first signal is effective, whether described secondary signal is invalid;
When if so, then again judging that described first signal is effective, whether described secondary signal is effective;
When if so, then judging further described first invalidating signal, whether described secondary signal is effective.
Wherein in an embodiment, described code-disc offers multiple breach, the breach quantity of described first code-disc is the integral multiple of the breach quantity of described second code-disc, or the breach quantity of described second code-disc is the integral multiple of the breach quantity of described first code-disc, if first sensor detects the breach of the first code-disc, then export effective first signal, if the second sensor detects the breach of the second code-disc, then export effective secondary signal.
Wherein in an embodiment, the breach line of described first code-disc aligns with the breach edge line of the second code-disc, or the breach line of described second code-disc aligns with the breach edge line of the first code-disc.
A kind of transfusion device internal congestion pressure relief device, described device comprises:
Identification module, for identifying whether the running status of infusion pump is forward transfusion state;
Judge module, if be forward transfusion state for identifying infusion pump, then judges whether the blockage pressure that the block liquid in transfusion device produces is more than or equal to pressure alarm threshold value; If so, then stopping modular, infuses for stopping forward;
Release module, for discharging the block liquid in described transfusion device;
Described judge module is also for judging whether described blockage pressure is less than or equal to earth pressure release threshold value, or whether the amount of liquid that described block liquid has discharged is more than or equal to liquid release threshold value; If so, then described stopping modular also discharges described block liquid for stopping.
Wherein in an embodiment, described device also comprises:
Acquisition module, for after the transfusion of stopping forward, obtains the total amount of liquid inputted in described transfusion device; After the described block liquid of stopping release, the amount of liquid discharged described in acquisition;
Computing module, for calculating the difference of described total amount of liquid and the described amount of liquid discharged, obtains actual amount of infusion.
Wherein in an embodiment, described identification module comprises:
Receiving element, the signal exported when detecting the kinestate of code-disc for receiving sensor, described sensor comprises first sensor and the second sensor, described code-disc comprises the first code-disc and the second code-disc, described first sensor is corresponding with described first code-disc, described second sensor is corresponding with described second code-disc, and described first sensor exports the first signal, and described second sensor exports secondary signal;
Judging unit, during for judging described first invalidating signal, whether described secondary signal is invalid; When if so, then again judging described first invalidating signal, whether described secondary signal is effective; When if so, then again judging that described first signal is effective, whether described secondary signal is effective; When if so, then judging that described first signal is effective further, whether described secondary signal is invalid.
Wherein in an embodiment, the running status of described identification infusion pump also comprises stress-released condition, described identification module is also for before the block liquid in the described transfusion device of release, whether the running status identifying described infusion pump is stress-released condition, if so, the step of the block liquid in the described transfusion device of described release is then performed.
Wherein in an embodiment, when described identification module is also for judging described first invalidating signal, whether described secondary signal is invalid; When if so, then again judging that described first signal is effective, whether described secondary signal is invalid; When if so, then again judging that described first signal is effective, whether described secondary signal is effective; When if so, then judging further described first invalidating signal, whether described secondary signal is effective.
A kind of infusion pump, described infusion pump comprises the first code-disc, second code-disc, first sensor and the second sensor, described first sensor is corresponding with the first code-disc, and export the first signal, described second sensor is corresponding with the second code-disc, and export secondary signal, described first code-disc and described second code-disc offer breach respectively, the breach quantity of described first code-disc is the integral multiple of the breach quantity of described second code-disc, or the breach quantity of described second code-disc is the integral multiple of the breach quantity of described first code-disc, if first sensor detects the breach of the first code-disc, then export effective first signal, if the second sensor detects the breach of the second code-disc, then export effective secondary signal, the running status of infusion pump according to described first signal and described secondary signal identification.
Wherein in an embodiment, the breach line of described first code-disc aligns with the breach edge line of the second code-disc, or the breach line of described second code-disc aligns with the breach edge line of the first code-disc.
Above-mentioned transfusion device internal congestion earth pressure release method, device and infusion pump, due to infusion pump be in forward transfusion state time, if the blockage pressure that the block liquid in transfusion device produces is more than or equal to pressure alarm threshold value, stop forward infusing, effectively prevent liquid to continue input transfusion device.After stopping infusion, discharge the block liquid in transfusion device, if blockage pressure is less than or equal to the amount of liquid that earth pressure release threshold value or block liquid discharged be more than or equal to liquid release threshold value, then stop release block liquid.Make the blockage pressure in transfusion device be discharged thus, thus effectively prevent transfusion device obstruction block liquid injecting human body instantaneously and work the mischief, and can effectively prevent transfusion device from oppositely infusing, improve the safety of transfusion.
Accompanying drawing explanation
Fig. 1 is the flow chart of transfusion device internal congestion earth pressure release method in an embodiment;
Fig. 2 is the flow chart of transfusion device internal congestion earth pressure release method in another embodiment;
Fig. 3-1 is the structural representation of code-disc in an embodiment;
Fig. 3-2 is the structural representation of infusion pump in an embodiment;
Fig. 4 is the signal timing diagram of forward transfusion state in an embodiment;
Fig. 5 is the signal timing diagram of stress-released condition in an embodiment;
Fig. 6 is the structural representation of transfusion device internal congestion pressure relief device in an embodiment;
Fig. 7 is the structural representation of transfusion device internal congestion pressure relief device in another embodiment;
Fig. 8 is the structural representation of identification module in an embodiment.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In one embodiment, as shown in Figure 1, provide a kind of transfusion device internal congestion earth pressure release method, the method specifically comprises:
Step 102, identifies whether the running status of infusion pump is forward transfusion state; If so, then step 104 is entered, otherwise, out of service and send false alarm.
Infusion pump comprises motor and the pump housing, and after infusion pump powers on, electric machine rotation drives pump housing motion, and infusion pump brings into operation.The running status of infusion pump comprises forward transfusion state and reverse transfusion state.Because reverse transfusion state can work the mischief to by the human body of infusing, therefore need the running status of real-time infusion monitoring pump, prevent infusion pump from entering reverse transfusion state.If the running status recognizing infusion pump is reverse transfusion state, out of service and send false alarm.When motor rotates forward, utilize the running status of photoelectric sensor Real-Time Monitoring infusion pump.Concrete, the pulse signal that can export according to photoelectric sensor identifies the running status of infusion pump.If identify that the current kinestate of infusion pump is forward transfusion state, namely infusion pump is to forward transfusion in transfusion device, then detect the blockage pressure that the block liquid in transfusion device produces.When block liquid in transfusion device refers to that transfusion device bending occurs or pressed, the liquid that transfusion device internal congestion part is accumulative.Block liquid can produce blockage pressure in transfusion device.
Step 104, judges whether the blockage pressure that the block liquid in transfusion device produces is more than or equal to pressure alarm threshold value; If so, then step 106 is entered, otherwise, continue the forward transfusion state maintaining infusion pump.
Judge whether the blockage pressure in transfusion device is more than or equal to pressure alarm threshold value, if so, then stop forward transfusion, namely stop electric machine rotation, stop infusion pump to continue to infusion fluid in transfusion device thus.Otherwise, then continue to maintain motor and rotate forward, namely continue the forward transfusion state maintaining infusion pump.
Step 106, stops forward transfusion, and discharges the block liquid in transfusion device.
After stopping forward transfusion, after the blockage pressure in transfusion device has been more than or equal to pressure alarm threshold value, also be just present in a pressure differential, after transfusion device is dredged, the block liquid in transfusion device caused because of this pressure differential to damage injecting human body instantaneously.Therefore, need to eliminate this pressure differential.This pressure differential can be eliminated by the mode of release transfusion device internal congestion liquid.Concrete, drive pump housing motion by motor reversal, from transfusion device, extract block liquid.
Step 108, judges whether blockage pressure is less than or equal to earth pressure release threshold value, or whether the amount of liquid that block liquid has discharged is more than or equal to liquid release threshold value; If so, then step 110 is entered, otherwise, continue release block liquid.
After starting to discharge block liquid, pressure transducer Real-Time Monitoring blockage pressure is utilized whether to be less than or equal to earth pressure release threshold value, or the amount of liquid release that Real-Time Monitoring block liquid has discharged is more than or equal to liquid release threshold value, if so, then stops releasing liquid immediately.
Step 110, stops release block liquid.
Stop release block liquid, namely stop motor reversal.Prevent from thus bringing harm because motor continuation reversion causes infusion pump to be in reverse transfusion state to human body.
In the present embodiment, identify whether the running status of infusion pump is forward transfusion state; If so, then judge whether the blockage pressure that the block liquid in transfusion device produces is more than or equal to pressure alarm threshold value; If so, then stop forward transfusion, and discharge the block liquid in transfusion device; Judge whether blockage pressure is less than or equal to earth pressure release threshold value, or whether the amount of liquid that block liquid has discharged is more than or equal to liquid release threshold value; If so, the described block liquid of release is then stopped.Due to infusion pump be in forward transfusion state time, if the blockage pressure that block liquid in transfusion device produces is more than or equal to pressure alarm threshold value, stop forward infuse, effectively prevent liquid to continue to input transfusion device.After stopping infusion, discharge the block liquid in transfusion device, if blockage pressure is less than or equal to the amount of liquid that earth pressure release threshold value or block liquid discharged be more than or equal to liquid release threshold value, then stop release block liquid.Make the blockage pressure in transfusion device be discharged thus, thus effectively prevent transfusion device obstruction block liquid injecting human body instantaneously and work the mischief, and can effectively prevent transfusion device from oppositely infusing, improve the safety of transfusion.
In one embodiment, after the step stopping forward transfusion, also comprise: obtain the total amount of liquid inputted in transfusion device; After the step stopping release block liquid, also comprise: obtain the amount of liquid discharged; Calculate total amount of liquid and the difference of the amount of liquid discharged, obtain actual amount of infusion.
As shown in Figure 2, the transfusion device internal congestion earth pressure release method in the present embodiment specifically comprises the following steps:
Step 202, identifies whether the running status of infusion pump is forward transfusion state; If so, then step 204 is entered, otherwise, continue the running status of infusion monitoring pump.
Step 204, judges whether the blockage pressure that the block liquid in transfusion device produces is more than or equal to pressure alarm threshold value; If so, then step 206 is entered, otherwise, continue the forward transfusion state maintaining infusion pump.
Step 206, stops forward transfusion, obtains the total amount of liquid inputted in transfusion device.
Step 208, the block liquid in release transfusion device.
Step 210, judges whether blockage pressure is less than or equal to earth pressure release threshold value, or whether the amount of liquid that block liquid has discharged is more than or equal to liquid release threshold value; If so, then step 212 is entered, otherwise, continue release block liquid.
Step 212, stops release block liquid.
Step 214, obtains the amount of liquid discharged.
Step 216, calculates total amount of liquid and the difference of the amount of liquid discharged, obtains actual amount of infusion.
In the present embodiment, during release block liquid, record is carried out to the amount of liquid of release, obtain actual amount of infusion according to the total amount of liquid in input transfusion device with the difference of the amount of liquid discharged, thus ensure that the accuracy of amount of infusion.
In one embodiment, identify that whether the running status of infusion pump is that the step of forward transfusion state comprises: the signal exported when receiving sensor detects the kinestate of code-disc, sensor comprises first sensor and the second sensor, code-disc comprises the first code-disc and the second code-disc, first sensor is corresponding with the first code-disc, second sensor is corresponding with the second code-disc, and first sensor exports the first signal, and the second sensor exports secondary signal; When judging the first invalidating signal, whether secondary signal is invalid; When if so, then again judging the first invalidating signal, whether secondary signal is effective; When if so, then again judging that the first signal is effective, whether secondary signal is effective; When if so, then judging that the first signal is effective further, whether secondary signal is invalid.
In the present embodiment, also comprise the pump housing, motor, code-disc and sensor in infusion pump, electric machine rotation drives pump housing motion, and code-disc moves together along with the rotation of motor, and sensor detects the kinestate of code-disc.Wherein, code-disc comprises the first code-disc and the second code-disc, and sensor comprises first sensor and the second sensor.First sensor for detecting the kinestate of the first code-disc, and exports the first corresponding signal.Second sensor for detecting the kinestate of the second code-disc, and exports corresponding secondary signal.First sensor and the second sensor can be photoelectric sensors.Wherein in an embodiment, code-disc offers multiple breach, the breach quantity of the first code-disc is the integral multiple of the breach quantity of the second code-disc, or the breach quantity of the second code-disc is the integral multiple of the breach quantity of the first code-disc, if first sensor detects the breach of the first code-disc, then export effective first signal, if the second sensor detects the breach of the second code-disc, then export effective secondary signal.In another embodiment, the breach line of the first code-disc aligns with the breach edge line of the second code-disc, or the breach line of the second code-disc aligns with the breach edge line of the first code-disc.
As shown in figure 3-1, the first code-disc 302 offers a breach to the structure of code-disc, and the second code-disc 304 offers multiple breach.As shown in figure 3-2, first sensor 306 is located at the below of the first code-disc 302 to transfusion pump structure, for detecting the kinestate of the first code-disc 302, and exports the first signal.The below of the second code-disc 304 is located at by second sensor 308, for detecting the kinestate of the second code-disc 304, and exports secondary signal.The breach quantity of the second code-disc 304 is integral multiples of the breach quantity of the first code-disc 302, and the breach line of the first code-disc 302 aligns with the breach edge line of the second code-disc 304.Second code-disc 304 is located at the position between the first code-disc 302 and the pump housing 310.First sensor 306 exports effective first signal when the breach of the first code-disc 302 being detected, exports effective secondary signal when the second sensor 308 detects the breach of the second code-disc 304.The pump housing 310 moves under the drive of motor (not marking in figure), in the whole work process of infusion pump, needs the running status of real-time infusion monitoring pump, prevents reverse transfusion.If when first sensor and the second sensor all do not export useful signal, then first sensor needs the kinestate of continuation detection first code-disc and the second sensor to need to continue the kinestate of detection second code-disc.If during the secondary signal that the useful signal first detected is the second sensor to be exported, illustrate that infusion pump may be forward transfusion state, being in forward transfusion state to confirm that infusion pump is current further, continuing to receive the first signal of first sensor output and the secondary signal of the second sensor output.When the running status of infusion pump is forward transfusion state, the sequential chart of the first signal and secondary signal, as shown in Figure 4.Within the cycle of a forward transfusion state, the first invalidating signal and secondary signal is invalid, the first invalidating signal and secondary signal is effective, effectively and secondary signal is invalid, the first signal effectively and secondary signal is invalid for the first signal.Thus, according to the sequential chart of the first signal and secondary signal, the forward transfusion state residing for present infusion pump can accurately be identified.
In one embodiment, identify that the running status of infusion pump also comprises stress-released condition, before the step of the block liquid in release transfusion device, also comprise: whether the running status of identification infusion pump is stress-released condition, if so, the step of the block liquid in release transfusion device is then performed.
In the present embodiment, the running status of infusion pump also comprises stress-released condition.Wherein in an embodiment, identify that whether the running status of infusion pump is that the step of stress-released condition comprises: when judging the first invalidating signal, whether secondary signal is invalid; When if so, then again judging that the first signal is effective, whether secondary signal is invalid; When if so, then again judging that the first signal is effective, whether secondary signal is effective; When if so, then judging the first invalidating signal further, whether secondary signal is effective.When the running status of infusion pump is stress-released condition, the sequential chart of the first signal and secondary signal, as shown in Figure 5.Within the cycle of a stress-released condition, the first invalidating signal and secondary signal is invalid, the first signal effectively and secondary signal is invalid, the first signal effectively and secondary signal is effective, the first invalidating signal and secondary signal is effective.Thus, according to the sequential chart of the first signal and secondary signal, the stress-released condition residing for present infusion pump can accurately be identified.When identifying infusion pump and being stress-released condition, the block liquid in release transfusion device.If blockage pressure is less than or equal to earth pressure release threshold value, or the amount of liquid that block liquid has discharged is more than or equal to liquid release threshold value, then stop release block liquid, prevent reverse transfusion, which thereby enhance the safety of transfusion.
In one embodiment, as shown in Figure 6, provide a kind of transfusion device internal congestion pressure relief device, this device comprises: identification module 602, judge module 604, stopping modular 606 and release module 608, wherein:
Identification module 602, for identifying whether the running status of infusion pump is forward transfusion state.
Judge module 604, if be forward transfusion state for identifying infusion pump, then judges whether the blockage pressure that the block liquid in transfusion device produces is more than or equal to pressure alarm threshold value.
Stopping modular 606, stops forward transfusion when the blockage pressure produced for the block liquid in transfusion device is more than or equal to pressure alarm threshold value.
Release module 608, for discharging the block liquid in transfusion device.
Judge module 604 is also for judging whether blockage pressure is less than or equal to earth pressure release threshold value, or whether the amount of liquid that block liquid has discharged is more than or equal to liquid release threshold value.
Stopping modular 606 is also less than or equal to earth pressure release threshold value for blockage pressure, or stops release block liquid when the amount of liquid that discharged of block liquid is more than or equal to liquid release threshold value.
In the present embodiment, due to infusion pump be in forward transfusion state time, if the blockage pressure that block liquid in transfusion device produces is more than or equal to pressure alarm threshold value, stop forward infuse, effectively prevent liquid to continue to input transfusion device.After stopping infusion, discharge the block liquid in transfusion device, if blockage pressure is less than or equal to the amount of liquid that earth pressure release threshold value or block liquid discharged be more than or equal to liquid release threshold value, then stop release block liquid.Make the blockage pressure in transfusion device be discharged thus, thus effectively prevent transfusion device obstruction block liquid injecting human body instantaneously and work the mischief, and can effectively prevent transfusion device from oppositely infusing, improve the safety of transfusion.
In one embodiment, as shown in Figure 7, this device also comprises: acquisition module 610 and computing module 612, wherein:
Acquisition module 610, for after the transfusion of stopping forward, obtains the total amount of liquid inputted in transfusion device; After the described block liquid of stopping release, obtain the amount of liquid discharged.
Computing module 612, for calculating total amount of liquid and the difference of the amount of liquid discharged, obtains actual amount of infusion.
In the present embodiment, during release block liquid, record is carried out to the amount of liquid of release, obtain actual amount of infusion according to the total amount of liquid in input transfusion device with the difference of the amount of liquid discharged, thus ensure that the accuracy of amount of infusion.
In one embodiment, as shown in Figure 8, identification module 602 comprises: receiving element 602a and judging unit 604b, wherein:
Receiving element 602a, the signal exported when detecting the kinestate of code-disc for receiving sensor, sensor comprises first sensor and the second sensor, code-disc comprises the first code-disc and the second code-disc, first sensor is corresponding with the first code-disc, second sensor is corresponding with described second code-disc, and first sensor exports the first signal, and the second sensor exports secondary signal.
Judging unit 604b, during for judging the first invalidating signal, whether secondary signal is invalid; When if so, then again judging the first invalidating signal, whether secondary signal is effective; When if so, then again judging that the first signal is effective, whether secondary signal is effective; When if so, then judging that the first signal is effective further, whether secondary signal is invalid.
In the present embodiment, according to the sequential chart of the first signal and secondary signal, accurately can identify the forward transfusion state residing for present infusion pump.
In one embodiment, identify that the running status of infusion pump also comprises stress-released condition, identification module 602 is also for before the block liquid in release transfusion device, whether the running status of identification infusion pump is stress-released condition, if so, the step of the block liquid in the described transfusion device of release is then performed.Wherein in an embodiment, when identification module 602 is also for judging the first invalidating signal, whether secondary signal is invalid; When if so, then again judging that the first signal is effective, whether secondary signal is invalid; When if so, then again judging that the first signal is effective, whether secondary signal is effective; When if so, then judging the first invalidating signal further, whether secondary signal is effective.
In the present embodiment, according to the sequential chart of the first signal and secondary signal, accurately can identify the stress-released condition residing for present infusion pump.When identifying infusion pump and being stress-released condition, the block liquid in release transfusion device.If blockage pressure is less than or equal to earth pressure release threshold value, or the amount of liquid that discharged of block liquid is more than or equal to liquid release threshold value, then stop whether block liquid, prevent reverse transfusion, which thereby enhance the safety of transfusion.
In one embodiment, provide a kind of infusion pump, comprise the first code-disc, second code-disc, first sensor and the second sensor, first sensor is corresponding with the first code-disc, and export the first signal, second sensor is corresponding with the second code-disc, and export secondary signal, first code-disc and the second code-disc offer breach respectively, the breach quantity of the first code-disc is the integral multiple of the breach quantity of the second code-disc, or the breach quantity of the second code-disc is the integral multiple of the breach quantity of the first code-disc, if first sensor detects the breach of the first code-disc, then export effective first signal, if the second sensor detects the breach of the second code-disc, then export effective secondary signal, according to the running status of the first signal and secondary signal identification infusion pump.
In the present embodiment, the running status of infusion pump comprises forward transfusion state, stress-released condition and reverse transfusion state.In the whole work process of infusion pump, need the running status of real-time infusion monitoring pump, prevent from entering reverse transfusion state.Wherein in an embodiment, the breach line of the first code-disc aligns with the breach edge line of the second code-disc, or the breach line of the second code-disc aligns with the breach edge line of the first code-disc.
Sequential according to the first signal and secondary signal identifies whether infusion pump is in forward transfusion state, concrete, and when judging the first invalidating signal, whether secondary signal is invalid; When if so, then again judging the first invalidating signal, whether secondary signal is effective; When if so, then again judging that the first signal is effective, whether secondary signal is effective; When if so, then judging that the first signal is effective further, whether secondary signal is invalid, and the running status that can identify infusion pump is thus forward transfusion state.If the blockage pressure that the block liquid in transfusion device produces maintains the forward transfusion state of infusion pump when being less than pressure alarm threshold value.If blockage pressure is more than or equal to pressure alarm threshold value, then infusion pump stops forward transfusion, and identifies whether present infusion pump is in stress-released condition, concrete, and when judging the first invalidating signal, whether secondary signal is invalid; When if so, then again judging that the first signal is effective, whether secondary signal is invalid; When if so, then again judging that the first signal is effective, whether secondary signal is effective; When if so, then judging the first invalidating signal further, whether secondary signal is effective, accurately can identify the stress-released condition residing for present infusion pump thus.Block liquid in infusion pump release transfusion device.If blockage pressure is less than or equal to earth pressure release threshold value, or the amount of liquid that block liquid has discharged is more than or equal to liquid release threshold value, then infusion pump stops release block liquid.Prevent infusion pump from entering reverse transfusion state.
Due to infusion pump be in forward transfusion state time, if the blockage pressure that block liquid in transfusion device produces is more than or equal to pressure alarm threshold value, stop forward infuse, effectively prevent liquid to continue to input transfusion device.After infusion pump stopping infusion, discharge the block liquid in transfusion device, if blockage pressure is less than or equal to the amount of liquid that earth pressure release threshold value or block liquid discharged be more than or equal to liquid release threshold value, then infusion pump stops release block liquid.Make the blockage pressure in transfusion device be discharged thus, thus effectively prevent transfusion device obstruction block liquid injecting human body instantaneously and work the mischief, and can effectively prevent transfusion device from oppositely infusing, improve the safety of transfusion.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (14)
1. a transfusion device internal congestion earth pressure release method, described method comprises:
Whether the running status of identification infusion pump is forward transfusion state;
If so, then judge whether the blockage pressure that the block liquid in transfusion device produces is more than or equal to pressure alarm threshold value;
If so, then stop forward transfusion, and discharge the block liquid in described transfusion device;
Judge whether described blockage pressure is less than or equal to earth pressure release threshold value, or whether the amount of liquid that described block liquid has discharged is more than or equal to liquid release threshold value;
If so, the described block liquid of release is then stopped.
2. method according to claim 1, is characterized in that, after the step of described stopping forward transfusion, also comprises:
Obtain the total amount of liquid inputted in described transfusion device;
After the step of the described block liquid of described stopping release, also comprise:
The amount of liquid discharged described in acquisition;
Calculate the difference of described total amount of liquid and the described amount of liquid discharged, obtain actual amount of infusion.
3. method according to claim 1, is characterized in that, whether the running status of described identification infusion pump is that the step of forward transfusion state comprises:
The signal that receiving sensor exports when detecting the kinestate of code-disc, described sensor comprises first sensor and the second sensor, described code-disc comprises the first code-disc and the second code-disc, described first sensor is corresponding with described first code-disc, described second sensor is corresponding with described second code-disc, described first sensor exports the first signal, and described second sensor exports secondary signal;
When judging described first invalidating signal, whether described secondary signal is invalid;
When if so, then again judging described first invalidating signal, whether described secondary signal is effective;
When if so, then again judging that described first signal is effective, whether described secondary signal is effective;
When if so, then judging that described first signal is effective further, whether described secondary signal is invalid.
4. method according to claim 3, is characterized in that, the running status of described identification infusion pump also comprises stress-released condition, before the step of the block liquid in the described transfusion device of described release, also comprises:
Whether the running status identifying described infusion pump is stress-released condition, if so, then performs the step of the block liquid in the described transfusion device of described release.
5. method according to claim 4, is characterized in that, whether the running status of the described infusion pump of described identification is that the step of stress-released condition comprises:
When judging described first invalidating signal, whether described secondary signal is invalid;
When if so, then again judging that described first signal is effective, whether described secondary signal is invalid;
When if so, then again judging that described first signal is effective, whether described secondary signal is effective;
When if so, then judging further described first invalidating signal, whether described secondary signal is effective.
6. the method according to any one of claim 3-5, it is characterized in that, described code-disc offers multiple breach, the breach quantity of described first code-disc is the integral multiple of the breach quantity of described second code-disc, or the breach quantity of described second code-disc is the integral multiple of the breach quantity of described first code-disc, if first sensor detects the breach of the first code-disc, then export effective first signal, if the second sensor detects the breach of the second code-disc, then export effective secondary signal.
7. method according to claim 6, is characterized in that, the breach line of described first code-disc aligns with the breach edge line of the second code-disc, or the breach line of described second code-disc aligns with the breach edge line of the first code-disc.
8. a transfusion device internal congestion pressure relief device, is characterized in that, described device comprises:
Identification module, for identifying whether the running status of infusion pump is forward transfusion state;
Judge module, if be forward transfusion state for identifying infusion pump, then judges whether the blockage pressure that the block liquid in transfusion device produces is more than or equal to pressure alarm threshold value; If so, then
Stopping modular, infuses for stopping forward;
Release module, for discharging the block liquid in described transfusion device;
Described judge module is also for judging whether described blockage pressure is less than or equal to earth pressure release threshold value, or whether the amount of liquid that described block liquid has discharged is more than or equal to liquid release threshold value; If so, then
Described stopping modular also discharges described block liquid for stopping.
9. device according to claim 8, is characterized in that, described device also comprises:
Acquisition module, for after the transfusion of stopping forward, obtains the total amount of liquid inputted in described transfusion device; After the described block liquid of stopping release, the amount of liquid discharged described in acquisition;
Computing module, for calculating the difference of described total amount of liquid and the described amount of liquid discharged, obtains actual amount of infusion.
10. device according to claim 8, is characterized in that, described identification module comprises:
Receiving element, the signal exported when detecting the kinestate of code-disc for receiving sensor, described sensor comprises first sensor and the second sensor, described code-disc comprises the first code-disc and the second code-disc, described first sensor is corresponding with described first code-disc, described second sensor is corresponding with described second code-disc, and described first sensor exports the first signal, and described second sensor exports secondary signal;
Judging unit, during for judging described first invalidating signal, whether described secondary signal is invalid; When if so, then again judging described first invalidating signal, whether described secondary signal is effective; When if so, then again judging that described first signal is effective, whether described secondary signal is effective; When if so, then judging that described first signal is effective further, whether described secondary signal is invalid.
11. methods according to claim 10, it is characterized in that, the running status of described identification infusion pump also comprises stress-released condition, described identification module is also for before the block liquid in the described transfusion device of release, whether the running status identifying described infusion pump is stress-released condition, if so, the step of the block liquid in the described transfusion device of described release is then performed.
12. methods according to claim 11, is characterized in that, when described identification module is also for judging described first invalidating signal, whether described secondary signal is invalid; When if so, then again judging that described first signal is effective, whether described secondary signal is invalid; When if so, then again judging that described first signal is effective, whether described secondary signal is effective; When if so, then judging further described first invalidating signal, whether described secondary signal is effective.
13. 1 kinds of infusion pump, it is characterized in that, described infusion pump comprises the first code-disc, second code-disc, first sensor and the second sensor, described first sensor is corresponding with the first code-disc, and export the first signal, described second sensor is corresponding with the second code-disc, and export secondary signal, described first code-disc and described second code-disc offer breach respectively, the breach quantity of described first code-disc is the integral multiple of the breach quantity of described second code-disc, or the breach quantity of described second code-disc is the integral multiple of the breach quantity of described first code-disc, if first sensor detects the breach of the first code-disc, then export effective first signal, if the second sensor detects the breach of the second code-disc, then export effective secondary signal, the running status of infusion pump according to described first signal and described secondary signal identification.
14. infusion pump according to claim 13, is characterized in that, the breach line of described first code-disc aligns with the breach edge line of the second code-disc, or the breach line of described second code-disc aligns with the breach edge line of the first code-disc.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246074.8A CN104815367B (en) | 2015-05-14 | 2015-05-14 | Transfusion device internal congestion pressure method for releasing, device and infusion pump |
| PCT/CN2015/096634 WO2016180010A1 (en) | 2015-05-14 | 2015-12-08 | Infusion apparatus inner blocking pressure release method and device, and infusion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510246074.8A CN104815367B (en) | 2015-05-14 | 2015-05-14 | Transfusion device internal congestion pressure method for releasing, device and infusion pump |
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| CN104815367B CN104815367B (en) | 2017-09-12 |
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| CN201510246074.8A Active CN104815367B (en) | 2015-05-14 | 2015-05-14 | Transfusion device internal congestion pressure method for releasing, device and infusion pump |
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| WO (1) | WO2016180010A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016180010A1 (en) * | 2015-05-14 | 2016-11-17 | 深圳市科曼医疗设备有限公司 | Infusion apparatus inner blocking pressure release method and device, and infusion pump |
| CN109475355A (en) * | 2016-06-09 | 2019-03-15 | C·R·巴德股份有限公司 | System and method for correcting and preventing pipe obstruction |
| CN110215565A (en) * | 2019-06-20 | 2019-09-10 | 河南驼人医疗器械集团有限公司 | A kind of blocking alarm system and electronic transfusion pump |
| CN112426585A (en) * | 2020-11-20 | 2021-03-02 | 南京信息职业技术学院 | Insulin pump metering calibration method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111905185B (en) * | 2020-07-22 | 2022-07-26 | 珠海福尼亚医疗设备有限公司 | Method and device for detecting blockage of infusion pipeline of electronic micro pump |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2016180010A1 (en) | 2016-11-17 |
| CN104815367B (en) | 2017-09-12 |
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