CN104225722A - Infusion device and infusion control method - Google Patents

Abstract

The application discloses a transfusion device and a transfusion control method.A peristaltic pump conveys liquid medicine flowing into a transfusion tube when being started; the air pump pumps air into the balance bin when being started; the balance bin is used for inputting gas into the liquid medicine container so as to provide gas pressure to enable liquid medicine to flow into the liquid conveying pipe from the liquid medicine container; the liquid medicine flowing into the infusion tube from the liquid medicine container forms liquid drops in the drip cup; the light curtain detection assembly is used for detecting liquid drops in the drip cup and sending a first detection signal to the first controller when the liquid drops are detected; the first controller is used for controlling the working states of the peristaltic pump and the gas pump in different stages, calculating a first dropping speed according to the first detection signal, and controlling the speed of liquid medicine conveyed into the infusion tube by the peristaltic pump or the speed of gas pumped into the balance bin by the gas pump according to the comparison result of the first dropping speed and the preset dropping speed so that the first dropping speed is matched with the preset dropping speed. Therefore, the stability and the accuracy of the infusion process can be ensured, and the occurrence of medical accidents is effectively reduced.

Description

A kind of infusion set and transfusion control method

Technical field

The application relates to technical field of medical instruments, particularly relates to a kind of infusion set and transfusion control method.

Background technology

Fluid transport therapy is one of the most frequently used clinically Therapeutic Method, refers to the infusion model by intravenous drip, is inputted by medicinal liquid in the vein blood vessel in body.In the infusion bottle that the medicinal liquid that fluid transport therapy uses is packaged in glass or plastics or bag, transfusion speed is adjusted by infusion set during treatment, medicinal liquid is continued and stably inputs human vein, to provide medicinal liquid, body fluid, electrolyte for human body or to provide nutrient substance.Because the dosage of fluid transport therapy is large, and be directly medicinal liquid is inputted in the vein blood vessel of human body, so when employing fluid transport therapy, for the accuracy of transfusion speed and the requirement of stability higher.

Current fluid transport therapy, infusion set adopts hanging bottle type infusion set or creeping motion type infusion set to carry out intravenous drip usually.Hanging bottle type infusion set is that infusion bottle or transfusion bag are suspended on eminence, utilizes the potential energy of medicinal liquid to infuse as power.Creeping motion type infusion set is with the mechanical part in infusion set with the continuously extruded tube for transfusion of mode of wriggling, and is input in the vein blood vessel of human body by medicinal liquid by extruding.

But in current infusion set, the transfusion speed of hanging bottle type infusion set is relevant with the height of infusion bottle or transfusion bag, transfusion speed relies on the range estimation of medical personnel and experience to carry out manual setting mostly; The impact of the deformation of the extruding force that the transfusion speed of creeping motion type infusion set is wriggled and tube for transfusion is higher, the deformation of extruding force and tube for transfusion is difficult to control effectively and predict, therefore need often to change tube for transfusion, cost is higher, existing creeping motion type infusion set still needs transfusion bottle simultaneously, requirement for transfusion occasion is higher, uses inconvenience.And no matter be existing hanging bottle type infusion set or creeping motion type infusion set, all cannot ensure accuracy and the stability of transfusion speed, impact transfusion precision, easily causes malpractice.

Infusion set of the prior art adopts the agravic infusion set of hanging bottle type or creeping motion type infusion set mostly, and these traditional infusion devices exist all multi-risk Systems and drawback.Such as: agravic transfusion can be slided pin, run pin or cause drop flow velocity substantial deviation to expect because of the difference of surface tension of liquid and viscosity, the episodic movement position of governor sheave also may cause transfusion blocked path or overdose, may cause medicinal liquid undercurrent, delay rescue opportunity or sufferer is poisoning; And creeping motion type transfusion needs by extruding tube for transfusion of wriggling by medical liquid squeezing, operation inconvenience or tube for transfusion quality do not pass a test and tube for transfusion excessive collapse all may be caused even to break; This all affects degree of accuracy and the stability of transfusion.

The technical scheme of the application can improve the accuracy of transfusion speed, ensures the stable and accurate of infusion process, improves transfusion occasion adaptability simultaneously, conscientiously solves the requirement that creeping motion type is infused to transfusion device, reduce transfusion cost, effectively reduce the generation of malpractice.

In order to make those skilled in the art person understand the application's scheme better, below in conjunction with accompanying drawing, the application is described in further detail.

Summary of the invention

In view of this, the embodiment of the present application provides a kind of infusion set and transfusion control method, the requirement of creeping motion type transfusion to tube for transfusion can be reduced, reduce transfusion cost, and improve the adaptability of transfusion occasion, make infusion set simply portable, and accuracy and the stability of transfusion speed can be improved, ensure transfusion precision, effectively reduce the generation of malpractice.

To achieve these goals, the technical scheme that provides of the embodiment of the present application is as follows:

A kind of infusion set, for carrying out infusion treatment to patient, comprising:

Peristaltic pump, air pump, balance bunker, appendix, tube for transfusion, light curtain detection components and the first controller, wherein,

Rotor and the pump housing is provided with in described peristaltic pump, described tube for transfusion passes between the rotor and the pump housing of described peristaltic pump, described peristaltic pump is used for starting or stoping under the control of described first controller, and carries out alternately extruding and discharging the medicinal liquid carried and flow in described tube for transfusion to described tube for transfusion by described rotor when starting;

Described air pump is connected with described balance bunker, for starting or stoping under the control of described first controller, and in described balance bunker, pumping into gas when starting, improving the atmospheric pressure value in described balance bunker;

Described balance bunker is connected with medical liquid container by described appendix, for being input in described medical liquid container by described appendix by the gas in described balance bunker, makes medicinal liquid flow in tube for transfusion from described medical liquid container to provide gas pressure;

Be provided with in described tube for transfusion and drip kettle, the medicinal liquid flowed into from described medical liquid container in described tube for transfusion forms drop in described kettle;

Described light curtain detection components detects light curtain for generating, and detects the described drop dripped in kettle, and send the first detection signal when drop being detected to described first controller by described detection light curtain;

Described first controller is for controlling described peristaltic pump and the described air pump duty in different phase, and receive described first detection signal, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, adjusting described peristaltic pump according to comparative result carries the speed of the medicinal liquid flowed in described tube for transfusion or described air pump in described balance bunker, pump into the speed of gas, and described first speed is matched with default speed of dripping.

Preferably, described balance bunker is connected with check valve, and described check valve is arranged between described air pump and described balance bunker, for preventing the gas backstreaming in described balance bunker in described air pump;

Described balance bunker comprises:

Pressure transducer, described pressure transducer is arranged in described balance bunker, for detecting atmospheric pressure value in described balance bunker and being sent to described first controller by the described atmospheric pressure value detected.

Preferably, described first controller, specifically for:

In start-up phase, when receiving start-up command, control the startup of described air pump and pump into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping, receive the described atmospheric pressure value in the described balance bunker that described pressure transducer detects, and described atmospheric pressure value is compared with the described atmospheric pressure value dripping speed corresponding of presetting, until when described atmospheric pressure value matches with the described default atmospheric pressure value that speed is corresponding, control described peristaltic pump to stop carrying the medicinal liquid flowed in described tube for transfusion, control described air pump to continue to pump into gas in described balance bunker, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that described air pump pumps into gas in described balance bunker, described first speed is matched with default speed of dripping,

In infusion process, judge whether a described speed of presetting reduces, and determine that described presetting drips fast reducing amount, if described reducing amount exceedes preset range, control described air pump to stop pumping into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping, receive the described atmospheric pressure value in the described balance bunker that described pressure transducer detects, and described atmospheric pressure value is compared with the described atmospheric pressure value dripping speed corresponding of presetting, until when described atmospheric pressure value matches with the described default atmospheric pressure value that speed is corresponding, control described peristaltic pump to stop carrying the medicinal liquid flowed in described tube for transfusion, control the startup of described air pump and pump into gas in described balance bunker, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that described air pump pumps into gas in described balance bunker, described first speed is matched with default speed of dripping.

Preferably, also comprise:

Ultrasonic sensor, described ultrasonic sensor is arranged at the end of described tube for transfusion, for being detected the medicinal liquid flow velocity in described tube for transfusion by transmitting ultrasonic signal, and sends the second detection signal when medicinal liquid flow velocity being detected to described first controller;

Then, described first controller, specifically for:

Receive described first detection signal and described second detection signal, and first speed of the described drop dripped in kettle is calculated according to described first detection signal, calculate second speed of the described drop dripped in kettle according to described second detection signal, judge whether described first speed or described second speed are greater than first threshold;

If described first speed or described second speed are greater than described first threshold, then described second speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described second speed drip speed and match with presetting;

If described first speed or described second speed are less than or equal to described first threshold, judge whether described first speed or described second speed are greater than Second Threshold;

If described first speed or described second speed are less than or equal to described Second Threshold, judge whether described first speed or described second speed are greater than the 3rd threshold value;

If described first speed or described second speed are less than or equal to described 3rd threshold value, control described air pump to stop pumping into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping;

If described first speed or described second speed are greater than described 3rd threshold value, described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described first speed drip speed and match with presetting;

If described first speed or described second speed are greater than described Second Threshold, then judge whether described first speed and described second fast difference are greater than the 4th threshold value;

If described first speed and described second fast difference are less than or equal to described 4th threshold value, then described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described first speed drip speed and match with presetting;

If described first speed and described second fast difference are greater than described 4th threshold value, then control described air pump and stop pumping into gas in described balance bunker, control described peristaltic pump and stop conveying flowing into medicinal liquid in described tube for transfusion.

Preferably, also comprise:

Alarm, described alarm is connected with described first controller, for when described first speed and described second fast difference are greater than described 4th threshold value, or when described first speed or described second speed are greater than described first threshold and second speed exceedes certain value with a default difference of dripping speed, or when described first speed or described second speed are less than or equal to described first threshold and first speed exceedes certain value with a default difference of dripping speed, receive the alarm signal of described first controller and report to the police.

Preferably, described light curtain detection components comprises:

Multiple infrared transmitting tube, multiple infrared receiving tube and second controller, wherein,

Described multiple infrared transmitting tube, as the transmitting terminal of described detection light curtain, is linearly set in qually spaced in described side of dripping kettle;

Described multiple infrared receiving tube, as the receiving terminal of described detection light curtain, is linearly set in qually spaced in the described opposite side dripping kettle, and relative with described multiple infrared transmitting tube;

Described second controller controls infrared transmitting tube and launches modulation signal to the infrared receiving tube of correspondence, and sends described first detection signal when the modulation signal that arbitrary infrared receiving tube receives changes to described first controller.

Preferably, also comprise:

Burdick lamp and/or ozonator, for carrying out ozone and/or disinfection by ultraviolet light to the gas in described balance bunker under the control of described first controller.

Preferably, also comprise:

Radome, described radome is arranged on the periphery of described light curtain detection components, for shielding the interference of extraneous light to described light curtain detection components.

The application also provides a kind of transfusion control method, for carrying out infusion treatment to patient, be applied in the infusion set with peristaltic pump, air pump, balance bunker, appendix, tube for transfusion, light curtain detection components, rotor and the pump housing is provided with in described peristaltic pump, described tube for transfusion passes between the rotor and the pump housing of described peristaltic pump, described peristaltic pump is used for starting or stoping under the control of described first controller, and carries out alternately extruding and discharging the medicinal liquid carried and flow in described tube for transfusion to described tube for transfusion by described rotor when starting; Described balance bunker is connected with medical liquid container by described appendix, for being input in described medical liquid container by described appendix by the gas in described balance bunker, makes medicinal liquid flow in tube for transfusion from described medical liquid container to provide gas pressure; Be provided with in described tube for transfusion and drip kettle, the medicinal liquid flowed into from described medical liquid container in described tube for transfusion forms drop in described kettle; Described transfusion control method comprises:

In start-up phase, when receiving start-up command, control the startup of described air pump and pump into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping, receive the described atmospheric pressure value in the described balance bunker that described pressure transducer detects, and described atmospheric pressure value is compared with the described atmospheric pressure value dripping speed corresponding of presetting, until when described atmospheric pressure value matches with the described default atmospheric pressure value that speed is corresponding, control described peristaltic pump to stop carrying the medicinal liquid flowed in described tube for transfusion, control described air pump to continue to pump into gas in described balance bunker, receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that described air pump pumps into gas in described balance bunker, described first speed is matched with default speed of dripping,

In infusion process, judge whether a described speed of presetting reduces, and determine that described presetting drips fast reducing amount, if described reducing amount exceedes preset range, control described air pump to stop pumping into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping, receive the described atmospheric pressure value in the described balance bunker that described pressure transducer detects, and described atmospheric pressure value is compared with the described atmospheric pressure value dripping speed corresponding of presetting, until when described atmospheric pressure value matches with the described default atmospheric pressure value that speed is corresponding, control described peristaltic pump to stop carrying the medicinal liquid flowed in described tube for transfusion, control the startup of described air pump and pump into gas in described balance bunker, receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that described air pump pumps into gas in described balance bunker, described first speed is matched with default speed of dripping.

Preferably, also comprise ultrasonic sensor in described infusion set, then described transfusion control method also comprises:

Receive second detection signal of described ultrasonic sensor by sending during the medicinal liquid flow velocity launching ultrasonic signal and detect in described tube for transfusion;

Receive described first detection signal and described second detection signal, and first speed of the described drop dripped in kettle is calculated according to described first detection signal, calculate second speed of the described drop dripped in kettle according to described second detection signal, judge whether described first speed or described second speed are greater than first threshold;

If described first speed or described second speed are greater than described first threshold, then described second speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described second speed drip speed and match with presetting;

If described first speed or described second speed are less than or equal to described first threshold, judge whether described first speed or described second speed are greater than Second Threshold;

If described first speed or described second speed are less than or equal to described Second Threshold, judge whether described first speed or described second speed are greater than the 3rd threshold value;

If described first speed or described second speed are less than or equal to described 3rd threshold value, control described air pump to stop pumping into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping;

If described first speed or described second speed are greater than described 3rd threshold value, described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described first speed drip speed and match with presetting;

If described first speed or described second speed are greater than described Second Threshold, then judge whether described first speed and described second fast difference are greater than the 4th threshold value;

If described first speed and described second fast difference are less than or equal to described 4th threshold value, then described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described first speed drip speed and match with presetting;

If described first speed and described second fast difference are greater than described 4th threshold value, then control described air pump and stop pumping into gas in described balance bunker, control described peristaltic pump and stop conveying flowing into medicinal liquid in described tube for transfusion.

The technical scheme provided from above the application, relative to prior art, the application has following beneficial effect:

The infusion set that the application provides and transfusion control method, for carrying out infusion treatment to patient, comprise: peristaltic pump, air pump, balance bunker, appendix, tube for transfusion, light curtain detection components and the first controller, wherein, rotor and the pump housing is provided with in described peristaltic pump, described tube for transfusion passes between the rotor and the pump housing of described peristaltic pump, described peristaltic pump is used for starting or stoping under the control of described first controller, and carries out alternately extruding and discharging the medicinal liquid carried and flow in described tube for transfusion to described tube for transfusion by described rotor when starting; Described air pump is connected with described balance bunker, for starting or stoping under the control of described first controller, and in described balance bunker, pumping into gas when starting, improving the atmospheric pressure value in described balance bunker; Described balance bunker is connected with medical liquid container by described appendix, for being input in described medical liquid container by described appendix by the gas in described balance bunker, makes medicinal liquid flow in tube for transfusion from described medical liquid container to provide gas pressure; Be provided with in described tube for transfusion and drip kettle, the medicinal liquid flowed into from described medical liquid container in described tube for transfusion forms drop in described kettle; Described light curtain detection components detects light curtain for generating, and detects the described drop dripped in kettle, and send the first detection signal when drop being detected to described first controller by described detection light curtain; Described first controller is for controlling described peristaltic pump and the described air pump duty in different phase, and receive described first detection signal, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, adjusting described peristaltic pump according to comparative result carries the speed of the medicinal liquid flowed in described tube for transfusion or described air pump in described balance bunker, pump into the speed of gas, and described first speed is matched with default speed of dripping.Like this, can according to the requirement of different phase during transfusion, select to adopt peristaltic pump carry out alternately extruding to tube for transfusion and discharge the infusion model carrying the medicinal liquid flowed in tube for transfusion, or adopt air pump to input gas in balance bunker, in medical liquid container, the infusion model of gas is inputted again by balance bunker, the infusion model that air pump adds balance bunker can play cushioning effect to the gas be about in input medical liquid container, makes the air pressure of transfusion steady, ensures transfusion stabilization; The infusion model of peristaltic pump when needing the gas pressure in reduction balance bunker to reduce transfusion speed, can prevent medicinal liquid reflux; And the medicinal liquid drop dripped in kettle is detected by light curtain detection components, drip speed according to drop and preset a fast air pressure comparing regulating transfusion, make drop drip speed with presetting to drip speed and match, transfusion speed can be made to level off to pre-set velocity by quick adjustment, improve the accuracy of transfusion speed; Thus the requirement of creeping motion type transfusion to tube for transfusion can be reduced, reduce transfusion cost, and air-pump type transfusion adds peristaltic pump type transfusion without the need to flask device, the adaptability of transfusion occasion can be improved, make infusion set simply portable, and ensure the stable and accurate of infusion process, effectively reduce the generation of malpractice.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

The structural representation of the infusion set that Fig. 1 provides for the embodiment of the present application one;

The structural representation of the infusion set that Fig. 2 provides for the embodiment of the present application two;

The structural representation of the infusion set that Fig. 3 provides for the embodiment of the present application three;

The flow chart of the transfusion control method that Fig. 4 provides for the embodiment of the present application four;

The flow chart of the transfusion control method that Fig. 5 provides for the embodiment of the present application five.

Detailed description of the invention

For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Embodiment one:

The structural representation of the infusion set that Fig. 1 provides for the embodiment of the present application one.

With reference to shown in Fig. 1, the infusion set that the embodiment of the present application provides, for carrying out infusion treatment to patient, comprising:

Peristaltic pump 0, air pump 1, balance bunker 2, appendix 3, tube for transfusion 4, light curtain detection components 5 and the first controller 6, wherein,

Rotor and the pump housing is provided with in described peristaltic pump 0, described tube for transfusion 4 passes between the rotor and the pump housing of described peristaltic pump 0, described peristaltic pump 0 for starting or stoping under the control of described first controller 6, and carries out alternately extruding and discharging the medicinal liquid carried and flow in described tube for transfusion 4 to described tube for transfusion 4 by described rotor when starting;

Described air pump 1 is connected with described balance bunker 2, for starting or stoping under the control of described first controller 6, and in described balance bunker 2, pumping into gas when starting, improving the atmospheric pressure value in described balance bunker 2;

Described balance bunker 2 is connected with medical liquid container by described appendix 3, for being input in described medical liquid container by described appendix 3 by the gas in described balance bunker 2, to provide gas pressure, medicinal liquid is flowed in tube for transfusion 4 from described medical liquid container;

In the embodiment of the present application, air pump 1, by the control of the first controller 6, inputs gas in balance bunker 2, and balance bunker 2, can buffer memory gas as the storage warehouse of gas, can play cushioning effect to gas, makes the air pressure in input tube for transfusion 4 steadily and stable.

Here, the first controller 6 is as the master controller of infusion set or central processing unit, and can be the existing entity controller such as single-chip microcomputer, PLC, the application be limited.

Be provided with in described tube for transfusion 4 and drip kettle, the medicinal liquid flowed into from described medical liquid container in described tube for transfusion 4 forms drop in described kettle;

In the embodiment of the present application, be provided with in tube for transfusion 4 and drip kettle, drip the stage casing that kettle is generally arranged on tube for transfusion 4, the internal diameter dripping kettle is greater than the internal diameter of tube for transfusion 4, the inlet and the liquid outlet that drip kettle communicate with the tube for transfusion at two ends respectively, the inlet that medicinal liquid is dripping kettle entering tube for transfusion 4 forms drop, drops onto one end of liquid outlet from one end of inlet.In actual applications, tube for transfusion 4 here and a kettle all can adopt existing mature technology, repeat no more herein.

Described light curtain detection components 5 detects light curtain for generating, and detects the described drop dripped in kettle, and send the first detection signal when drop being detected to described first controller 6 by described detection light curtain;

In the embodiment of the present application, light curtain detection components 5 can generate light array by determining deviation along its length, formed " the light curtain " of a larger area, in a kind of mode of scanning, drop whether is had to drip by detecting in a light curtain detection kettle, and send the first detection signal when detecting that drop drips to the first controller 6, rocking or impact that angle of inclination is caused drop detection in infusion process can be avoided like this, make to detect accurately.

Here, drop whether is had to drip by detecting in a light curtain detection kettle, whether have barrier to pass light array because light curtain detection components 5 can be detected by the light array generated, owing to being applied in the scene of drop detection, as long as light curtain detection components 5 detects barrier, can judge have drop to drip, trigger and send the first detection signal to the first controller 6.

Described first controller 6 is for controlling described peristaltic pump 0 and described air pump 1 duty in different phase, and receive described first detection signal, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, adjusting described peristaltic pump 0 according to comparative result carries the speed of the medicinal liquid flowed in described tube for transfusion 4 or described air pump 1 in described balance bunker 2, pump into the speed of gas, and described first speed is matched with default speed of dripping.

In the embodiment of the present application, first controller 6 can by nearest twice adjacent reception to the first detection signal calculate instantaneous speed of the drop dripped in kettle, as first speed, also can by repeatedly adjacent reception to the first detection signal calculate the mean droplet speed of the drop dripped in kettle, as first speed, and then first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump 0 according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion 4 or described air pump 1 pump into gas in described balance bunker 2, described first speed is matched with default speed of dripping.

Here described first speed that makes matches with default speed of dripping, and is instigate the first fast rapid advance detected to drip speed in presetting.

In the embodiment of the present application, pressure transducer 21 can be set in balance bunker 2, the atmospheric pressure value detected be sent to described first controller 6 for the air pressure that detects in described balance bunker 2.

In the embodiment of the present application, start-up phase when infusion set is opened, when first controller 6 receives start-up command, control described peristaltic pump 0 and start the medicinal liquid carried and flow in described tube for transfusion 4, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump 0 flows into the medicinal liquid in described tube for transfusion 4, described first speed is matched with default speed of dripping, simultaneously, first controller 6 also controls described air pump 1 and starts pump into gas in described balance bunker 2, receive the described atmospheric pressure value in the described balance bunker 2 that described pressure transducer 21 detects, and described atmospheric pressure value is compared with the described atmospheric pressure value dripping speed corresponding of presetting, until when described atmospheric pressure value matches with the described default atmospheric pressure value that speed is corresponding, control described peristaltic pump 0 to stop carrying the medicinal liquid flowed in described tube for transfusion 4, control described air pump 1 to continue to pump into gas in described balance bunker 2, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that described air pump 1 pumps into gas in described balance bunker 2, described first speed is matched with default speed of dripping,

In the embodiment of the present application, because in the open stage balance bunker 2 of transfusion, air pressure is inadequate, use air pump 1 transfusion cannot meet the requirement preset and drip speed, now in order to ensure precision of infusing, in the open stage of transfusion, first controller 6 is booster air pump 1 and peristaltic pump 0 simultaneously, peristaltic pump 0 is for being transported in patient body according to presetting a speed by the medicinal liquid in tube for transfusion 4, air pump 1 is for insufflation gas in balance bunker 2, improve the atmospheric pressure value in balance bunker 2, when air pressure in ready to balance storehouse 2 conforms to the default air pressure that speed is corresponding, first controller 6 controls peristaltic pump 0 to be stopped, air pump 1 continues to pump into gas in balance bunker 2, air pump 1 is now utilized to be transported in patient body by the medicinal liquid in tube for transfusion 4, the required precision in infusion process can be met.

And in infusion process, according to preset program, first controller 6 can judge whether a described speed of presetting reduces, and determine that described presetting drips fast reducing amount, if described reducing amount exceedes preset range, control described air pump 1 to stop pumping into gas in described balance bunker 2, control described peristaltic pump 0 and start the medicinal liquid carried and flow in described tube for transfusion 4, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump 0 flows into the medicinal liquid in described tube for transfusion 4, described first speed is matched with default speed of dripping, receive the described atmospheric pressure value in the described balance bunker 2 that described pressure transducer 21 detects, and described atmospheric pressure value is compared with the described atmospheric pressure value dripping speed corresponding of presetting, until when described atmospheric pressure value matches with the described default atmospheric pressure value that speed is corresponding, control described peristaltic pump 0 to stop carrying the medicinal liquid flowed in described tube for transfusion, control described air pump 1 to start pump into gas in described balance bunker 2, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that described air pump 1 pumps into gas in described balance bunker 2, described first speed is matched with default speed of dripping.

In the embodiment of the present application, speed is dripped because the different phase in infusion process can require different presetting, therefore preset a speed can change, when presetting a speed and will reduce and the amplitude reduced being larger, in balance bunker 2, air pressure is directly dropped in hypobaric process may be reduced to cause medicinal liquid reflux due to air pressure by hyperbar, now use air pump 1 to infuse and easily occur danger, in order to ensure the stationarity of infusion process, when presetting a speed and needing the reducing amount significantly reduced to exceed preset range, first controller 6 controls to stop air pump 1, start peristaltic pump 0, control described peristaltic pump 0 and start the medicinal liquid carried and flow in described tube for transfusion 4, according to presetting a speed, the medicinal liquid in tube for transfusion 4 is transported in patient body, now described air pump 1 has stopped pumping into gas in described balance bunker 2, when medicinal liquid is slowly conveyed into after in human body, medicinal liquid in medical liquid container reduces, so the air pressure in medical liquid container and balance bunker 2 can reduce thereupon, thus when namely the requirement that air pressure is reduced to satisfied default speed conforms to a default fast corresponding atmospheric pressure value, air pump 1 can be re-used infuse, because the gas pressure in balance bunker 2 reduces, first speed now also can keep matching with default speed of dripping.

In the embodiment of the present application, balance bunker 2 adopts electromagnetic type air pressure balance storehouse, and warehouse can be set to arbitrary shape, volume >=50ML, and for cushioning gas pressure, the drop stablizing medicinal liquid is dripping the speed in kettle.It is inner that pressure transducer 21 is arranged on balance bunker 2, can detect storehouse internal gas pressure, and the first controller 6 controls the work of air pump 1 according to the atmospheric pressure value detected in real time.

In addition, can also arrange check valve 22 in the embodiment of the present application between described air pump 1 and described balance bunker 2, described check valve 22 is arranged between described air pump 1 and described balance bunker 2, for preventing the gas backstreaming in described balance bunker 2 in described air pump 1;

In the embodiment of the present application, check valve 22 is arranged in the appendix 3 in the warehouse of balance bunker 2 and the centre position of air pump 1, make gas can only one-way flow, keep the stable gas pressure in balance bunker 2 when air pump 1 does not work, prevent air pressure from recoiling simultaneously and cause air pump 1 to damage.

The infusion set that the application provides, for carrying out infusion treatment to patient, comprise: peristaltic pump, air pump, balance bunker, appendix, tube for transfusion, light curtain detection components and the first controller, wherein, rotor and the pump housing is provided with in described peristaltic pump, described tube for transfusion passes between the rotor and the pump housing of described peristaltic pump, described peristaltic pump is used for starting or stoping under the control of described first controller, and carries out alternately extruding and discharging the medicinal liquid carried and flow in described tube for transfusion to described tube for transfusion by described rotor when starting; Described air pump is connected with described balance bunker, for starting or stoping under the control of described first controller, and in described balance bunker, pumping into gas when starting, improving the atmospheric pressure value in described balance bunker; Described balance bunker is connected with medical liquid container by described appendix, for being input in described medical liquid container by described appendix by the gas in described balance bunker, makes medicinal liquid flow in tube for transfusion from described medical liquid container to provide gas pressure; Be provided with in described tube for transfusion and drip kettle, the medicinal liquid flowed into from described medical liquid container in described tube for transfusion forms drop in described kettle; Described light curtain detection components detects light curtain for generating, and detects the described drop dripped in kettle, and send the first detection signal when drop being detected to described first controller by described detection light curtain; Described first controller is for controlling described peristaltic pump and the described air pump duty in different phase, and receive described first detection signal, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, adjusting described peristaltic pump according to comparative result carries the speed of the medicinal liquid flowed in described tube for transfusion or described air pump in described balance bunker, pump into the speed of gas, and described first speed is matched with default speed of dripping.Like this, can according to the requirement of different phase during transfusion, select to adopt peristaltic pump carry out alternately extruding to tube for transfusion and discharge the infusion model carrying the medicinal liquid flowed in tube for transfusion, or adopt air pump to input gas in balance bunker, in medical liquid container, the infusion model of gas is inputted again by balance bunker, the infusion model that air pump adds balance bunker can play cushioning effect to the gas be about in input medical liquid container, makes the air pressure of transfusion steady, ensures transfusion stabilization; The infusion model of peristaltic pump when needing the gas pressure in reduction balance bunker to reduce transfusion speed, can prevent medicinal liquid reflux; And the medicinal liquid drop dripped in kettle is detected by light curtain detection components, drip speed according to drop and preset a fast air pressure comparing regulating transfusion, make drop drip speed with presetting to drip speed and match, transfusion speed can be made to level off to pre-set velocity by quick adjustment, improve the accuracy of transfusion speed; Thus the requirement of creeping motion type transfusion to tube for transfusion can be reduced, reduce transfusion cost, and air-pump type transfusion adds peristaltic pump type transfusion without the need to flask device, the adaptability of transfusion occasion can be improved, make infusion set simply portable, and ensure the stable and accurate of infusion process, effectively reduce the generation of malpractice.

Embodiment two:

The structural representation of the infusion set that Fig. 2 provides for the embodiment of the present application two.

With reference to shown in Fig. 2, the infusion set that the embodiment of the present application provides, for carrying out infusion treatment to patient, comprising:

Peristaltic pump 0, air pump 1, balance bunker 2, appendix 3, tube for transfusion 4, light curtain detection components 5 and the first controller 6, also comprise: ultrasonic sensor 7, wherein,

Rotor and the pump housing is provided with in described peristaltic pump 0, described tube for transfusion 4 passes between the rotor and the pump housing of described peristaltic pump 0, described peristaltic pump 0 for starting or stoping under the control of described first controller 6, and carries out alternately extruding and discharging the medicinal liquid carried and flow in described tube for transfusion 4 to described tube for transfusion 4 by described rotor when starting;

Described air pump 1 is connected with described balance bunker 2, for starting or stoping under the control of described first controller 6, and in described balance bunker 2, pumping into gas when starting, improving the atmospheric pressure value in described balance bunker 2;

Described balance bunker 2 is connected with medical liquid container by described appendix 3, for being input in described medical liquid container by described appendix 3 by the gas in described balance bunker 2, to provide gas pressure, medicinal liquid is flowed in tube for transfusion 4 from described medical liquid container;

Be provided with in described tube for transfusion 4 and drip kettle, the medicinal liquid flowed into from described medical liquid container in described tube for transfusion 4 forms drop in described kettle;

Described light curtain detection components 5 detects light curtain for generating, and detects the described drop dripped in kettle, and send the first detection signal when drop being detected to described first controller 6 by described detection light curtain;

In the embodiment of the present application, light curtain detection components 5 is the detection arrays formed with photoelectric sensor, can be described in detail, repeat no more herein in the following examples to this.

Described ultrasonic sensor 7, described ultrasonic sensor 7 is arranged at the end of described tube for transfusion near patient, for being detected the medicinal liquid flow velocity in described tube for transfusion 4 by transmitting ultrasonic signal, and send the second detection signal when medicinal liquid flow velocity being detected to described first controller 6;

In the embodiment of the present application, when dripping, speed is higher, during drop nearly singular integral, beyond the response time (response time=action time delay+involution time delay) of photoelectric sensor, now photoelectric sensor often easily reports an error, therefore on the basis of the light curtain detection components 5 of photoelectric sensor formation, embodiment adds ultrasonic sensor 7, ultrasonic sensor at one section of tube for transfusion (preferably at the end of tube for transfusion near human body, the bubble of medicinal liquid when being conducive to detecting reflux in tube for transfusion) two ends ultrasonic transmitter and ultrasonic receiver are set respectively, ultrasonic signal is launched by ultrasonic transmitter, by ultrasonic receiver received ultrasonic signal.Ultrasonic signal arrives ultrasonic receiver through tube for transfusion from a ultrasonic transmitter.When medicinal liquid does not flow, the transmission time of ultrasonic signal is fixed, and when if the medicinal liquid in tube for transfusion has a certain flow rate V, ultrasonic signal then along flow direction can transmit soon, and the ultrasonic signal in reverse flow direction can transmit slowly, like this, the following current transmission time can shorten, and the countercurrent time can be elongated.So the impact of medicinal liquid flow velocity can be subject to when ultrasonic signal transmits in the medicinal liquid flowed, the medicinal liquid flow velocity in tube for transfusion can be calculated by the transmission time detecting ultrasonic signal.

In the embodiment of the present application, the difference of speed when propagation speed differential method (comprising: directly time difference method, time difference method, phase difference method, frequency-difference method) can be adopted to measure ultrasonic signal and countercurrent, thus the medicinal liquid flow velocity in calculating tube for transfusion, and send the second detection signal when medicinal liquid flow velocity being detected to described first controller 6.

Now, described first controller 6, specifically for:

Receive described first detection signal and described second detection signal, and first speed of the described drop dripped in kettle is calculated according to described first detection signal, calculate second speed of the described drop dripped in kettle according to described second detection signal, judge whether described first speed or described second speed are greater than first threshold;

In the embodiment of the present application, second speed equals the product of area of section and tube for transfusion 4 cast in medicinal liquid flow velocity and tube for transfusion 4.

If described first speed or described second speed are greater than described first threshold, then described second speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump 0 according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump 1 pump into gas in described balance bunker, make described second speed drip speed and match with presetting;

In the embodiment of the present application, first threshold is preferably 400/min, preset when dripping speed and being greater than 400/min, inaccurate according to first speed that the first detection signal of light curtain detection components 5 calculates, now choose the control that second speed calculated according to the second detection signal of ultrasonic sensor 7 carries out transfusion precision.

If described first speed or described second speed are less than or equal to described first threshold, judge whether described first speed or described second speed are greater than Second Threshold;

In the embodiment of the present application, preset the testing result of ultrasonic sensor 7 when a speed exceeds 400/min accurate, preset the testing result of light curtain detection components 5 when a speed is no more than 400/min accurate, and when practical application, can also Second Threshold be set, if now judge that described first speed or described second speed are less than or equal to described first threshold, then judge whether described first speed or described second speed are greater than described Second Threshold again, in the embodiment of the present application, Second Threshold is preferably 300/min.

If described first speed or described second speed are less than or equal to described Second Threshold, judge whether described first speed or described second speed are greater than the 3rd threshold value;

If described first speed or described second speed are less than or equal to described 3rd threshold value, control described air pump 1 to stop pumping into gas in described balance bunker, control described peristaltic pump 0 and start the medicinal liquid carried and flow in described tube for transfusion, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump 0 flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping;

If described first speed or described second speed are greater than described 3rd threshold value, described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump 0 according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion 4 or described air pump 1 pump into gas in described balance bunker 2, make described first speed drip speed and match with presetting;

If described first speed or described second speed be less than or equal to described Second Threshold that is 300/min time, then preset second speed calculated according to the second detection signal of ultrasonic sensor inaccurate, now choose the control that first speed calculated according to the first detection signal of light curtain detection components 5 carries out transfusion precision, described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump 0 according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion 4 or described air pump 1 pump into gas in described balance bunker 2, described first speed is matched with default speed of dripping.

If described first speed or described second speed are greater than described Second Threshold, then judge whether described first speed and described second fast difference are greater than the 4th threshold value;

If described first speed or described second speed are greater than described Second Threshold, then judge whether described first speed and described second fast difference are greater than the 4th threshold value, and carry out subsequent flows journey:

If described first speed and described second fast difference are less than or equal to described 4th threshold value, then described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump 0 according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion 4 or described air pump 1 pump into gas in described balance bunker 2, make described first speed drip speed and match with presetting;

If described first speed and described second fast difference are greater than described 4th threshold value, then control described air pump and stop pumping into gas in described balance bunker, control described peristaltic pump and stop conveying flowing into medicinal liquid in described tube for transfusion.

In the embodiment of the present application, preset when droplet speed be less than or equal to first threshold that is 400/min time, light curtain detection components 5 and ultrasonic sensor 7 work simultaneously, first controller 6 judges whether first speed and second fast difference are greater than the 4th threshold value, and whether the difference both also namely judging is beyond the range of error allowed.

If first speed and second fast difference are less than or equal to the 4th threshold value, then both differences do not exceed the range of error of permission.Now preset first speed accurate, second speed is inaccurate, chooses the control that first speed calculated according to the first detection signal of light curtain detection components 5 carries out transfusion precision.

If first speed and second fast difference are greater than the 4th threshold value, then both differences are beyond the range of error allowed, now the first controller 6 controls the stopping of described air pump and pump into gas in described balance bunker, control described peristaltic pump to stop carrying the medicinal liquid flowed in described tube for transfusion, stopping infusion.

In the embodiment of the present application, first that preferably calculates according to the first detection signal of light curtain detection components 5 fast 5% is the 4th threshold value.

And, in infusion set, can also alarm be set, described alarm is connected with described first controller 6, for when described first speed and described second fast difference are greater than described 4th threshold value, or when described first speed or described second speed are greater than described first threshold and second speed exceedes certain value with a default difference of dripping speed, or when described first speed or described second speed are less than or equal to described first threshold and first speed exceedes certain value with a default difference of dripping speed, or blocking appears in infusion set, during the abnormal conditions such as bubble, or transfusion early warning, when having infused, receive the alarm signal of described first controller 6 and carry out sound and light alarm.

It is evident that, adopt air pump 1 by air pressure, medicinal liquid to be conveyed into the infusion process of human body, transfusion precision error when presetting a speed and being less is larger.In order to the generation preventing precision in this case poor, when needs Ultra-Low Speed transfusion (as 1/min or lower), preset the 3rd threshold value, when first speed or second speed are less than or equal to the 3rd threshold value, peristaltic pump 0 can be only utilized to infuse: the first controller 6 controls described air pump 1 to be stopped pumping into gas in described balance bunker 2, control described peristaltic pump 0 and start the medicinal liquid carried and flow in described tube for transfusion 4, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump 0 flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping, can realize just starting the transfusion of Ultra-Low Speed when infusing demand.

Pass through foregoing description, the infusion set that the application provides adopts light curtain detection components 5 and ultrasonic sensor 7 pairs of drops to carry out combine detection, and devise the infusion tube clamp that can meet Ultra-Low Speed transfusion, effectively can cover and accurately detect all fast scopes required by infusion process, ensureing the transfusion stabilization when infusion parameter switches.

The infusion set that the application provides, can according to the requirement of different phase during transfusion, select to adopt peristaltic pump carry out alternately extruding to tube for transfusion and discharge the infusion model carrying the medicinal liquid flowed in tube for transfusion, or adopt air pump to input gas in balance bunker, in medical liquid container, the infusion model of gas is inputted again by balance bunker, the infusion model that air pump adds balance bunker can play cushioning effect to the gas be about in input medical liquid container, makes the air pressure of transfusion steady, ensures transfusion stabilization; The infusion model of peristaltic pump when needing the gas pressure in reduction balance bunker to reduce transfusion speed, can prevent medicinal liquid reflux; Then the first controller drips speed according to the drop that Through Several Survey Measure calculates and presets a fast air pressure comparing regulating transfusion, make drop drip speed to match with default speed of dripping, the degree of accuracy under various transfusion speed can be ensured, then make transfusion speed level off to pre-set velocity by quick adjustment, improve the accuracy of transfusion speed; Thus the requirement of creeping motion type transfusion to tube for transfusion can be reduced, reduce transfusion cost, and air-pump type transfusion adds peristaltic pump type transfusion without the need to flask device, the adaptability of transfusion occasion can be improved, make infusion set simply portable, and ensure the stable and accurate of infusion process, effectively reduce the generation of malpractice.

Embodiment three:

The structural representation of the infusion set that Fig. 3 provides for the embodiment of the present application three.

With reference to shown in Fig. 3, the infusion set that the embodiment of the present application provides, for carrying out infusion treatment to patient, comprising:

Peristaltic pump 0, air pump 1, balance bunker 2, appendix 3, tube for transfusion 4, light curtain detection components 5 and the first controller 6, and light curtain detection components 5 wherein comprises: multiple infrared transmitting tube 51, multiple infrared receiving tube 52 and second controller 53, wherein,

Rotor and the pump housing is provided with in described peristaltic pump 0, described tube for transfusion 4 passes between the rotor and the pump housing of described peristaltic pump 0, described peristaltic pump 0 for starting or stoping under the control of described first controller 6, and carries out alternately extruding and discharging the medicinal liquid carried and flow in described tube for transfusion 4 to described tube for transfusion 4 by described rotor when starting;

Described air pump 1 is connected with described balance bunker 2, for starting or stoping under the control of described first controller 6, and in described balance bunker 2, pumping into gas when starting, improving the atmospheric pressure value in described balance bunker 2;

Described balance bunker 2 is connected with medical liquid container by described appendix 3, for being input in described medical liquid container by described appendix 3 by the gas in described balance bunker 2, to provide gas pressure, medicinal liquid is flowed in tube for transfusion 4 from described medical liquid container;

Be provided with in described tube for transfusion 4 and drip kettle, the medicinal liquid flowed into from described medical liquid container in described tube for transfusion 4 forms drop in described kettle;

Described light curtain detection components 5 detects light curtain for generating, and detects the described drop dripped in kettle, and send the first detection signal when drop being detected to described first controller 6 by described detection light curtain;

In described light curtain detection components 5, described multiple infrared transmitting tube 51, as the transmitting terminal of described detection light curtain 5, is linearly set in qually spaced in described side of dripping kettle;

Described multiple infrared receiving tube 52, as the receiving terminal of described detection light curtain 5, is linearly set in qually spaced in the described opposite side dripping kettle, and relative with described multiple infrared transmitting tube 51;

The quantity of preferred described multiple infrared transmitting tube 51 is equal with the quantity of described multiple infrared receiving tube 52, the corresponding corresponding infrared receiving tube of each infrared transmitting tube;

In the embodiment of the present application, multiple infrared transmitting tube 51 and multiple infrared receiving tube 52 all adopt photoelectric sensor, photoelectric sensor comprises optical system, amplifier and output switch parameter device, can induction light Strength Changes exactly, and photoelectric sensor uses modulation signal, effectively can get rid of the impact of light source around.

In the embodiment of the present application, preferred multiple infrared transmitting tube 51 with≤4mm equidistantly and perpendicular to the longitudinal axis emission of light array dripping kettle, multiple infrared receiving tube 52 receives light array with the spacing equal with multiple infrared transmitting tube 51, the light array that determining deviation generates along its length is formed one " light curtain ", also be drop detection region, detect light curtain in a kind of mode of scanning, coordinate second controller 53 and software thereof, realize the function detecting drop.

Preferably, in the embodiment of the present application, in order to ensure the accuracy of drop detection, the air line distance that infrared transmitting tube and infrared receiving tube distance drip kettle is set to 8mm, the density≤1.2mm of light array, and the shaft diameter of light array is 0.2mm, and drip kettle rock angle in 60 degree time, scope >=14 × the 14mm in drop detection region is set, drip kettle rock angle in 45 degree time, the scope >=8 × 8mm in drop detection region is set.

Described second controller 53 controls infrared transmitting tube and launches modulation signal to the infrared receiving tube of correspondence, and sends described first detection signal when the modulation signal that arbitrary infrared receiving tube receives changes to described first controller 6;

In the embodiment of the present application, second controller 53 is provided with in light curtain detection components 5, second controller 53 can be single-chip microcomputer, software is used to carry out programming setting, multiple scan pattern can be provided and detect analytical model, and carry out communication by serial line interface and PLC or computer, transmit and control or scanning result, in addition also accessible triggering signal gated sweep process.

In the embodiment of the present application, the one side detecting light curtain is equidistantly provided with multiple infrared transmitting tube, the infrared receiving tube that another side has equal number to arrange equally accordingly, each infrared transmitting tube to there being a corresponding infrared receiving tube, and is arranged on same straight line.Multiple infrared transmitting tube launches modulation signal with the form of light, when object under test is through out-of-date, according to the difference of detecting pattern, object or absorb light or by light reflection to the multiple infrared receiving tube of light, thus the light intensity of the modulation signal causing multiple infrared receiving tube to receive changes, its changing value trigger switch signal exports, and can realize the measuring ability of measuring targets.Such as, when not having barrier between the infrared transmitting tube on same straight line, infrared receiving tube, the modulation signal that infrared transmitting tube sends can arrive infrared receiving tube smoothly, after infrared receiving tube receives modulation signal, and corresponding internal circuit output low level.And when there being barrier, the modulation signal that infrared transmitting tube sends can not arrive infrared receiving tube smoothly, at this moment this infrared receiving tube does not receive modulation signal, corresponding internal circuit exports as high level, now, the detection of measuring targets can be realized, export the first detection signal.

Light curtain detection components 5 in the embodiment of the present application is applied to the drop dripped in kettle detecting tube for transfusion, namely object under test is drop, when an obstacle is detected, namely drop is had through surveyed area, the light intensity that now infrared receiving tube receives changes, its changing value can export by trigger switch signal, thus realizes droplet counting.

Described first controller 6 is for receiving described first detection signal, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, starting or stoping of described peristaltic pump 0 is adjusted according to comparative result, and control starting or stoping of described air pump 1, described first speed is matched with default speed of dripping.

And; in order to prevent extraneous light especially ultraviolet light to the interference of light curtain detection components 5; the infusion set that the application provides can also arrange radome in the periphery of described light curtain detection components 5; described radome can be made with the plastic material mixing metal powder or Nano metal powder; for shield extraneous light especially ultraviolet light to the interference of described light curtain detection components 5; and can be dust-proof; and increase the protection of the medicinal liquid some being needed to lucifuge, strengthen the accuracy of detection of light curtain detection components 5 further.

In addition, on the basis of above-mentioned all embodiments, the infusion set that the application provides can also comprise Burdick lamp and/or ozonator, described Burdick lamp is arranged on the outside or inside of described balance bunker 2, described ozonator is arranged on the inside of described balance bunker 2 or air inlet or gas outlet, for carrying out ozone and/or disinfection by ultraviolet light to the gas in described balance bunker 2 under the control of described first controller 6, in infusion process at ordinary times, carry out disinfection in an automatic fashion, also regularly or in case of need manually " sterilization " instruction can be inputted, received by the first controller 6 and send start signal to Burdick lamp and/or ozonator, manually to sterilize, ensure health and the safety of infusion set.

The infusion set that the application provides, the medicinal liquid drop dripped in kettle is detected by light curtain detection components, effectively can reduce the impact of moving or rocking accuracy drop being dripped to speed detection in infusion process, then the first controller drips speed according to drop and presets a fast air pressure comparing regulating transfusion, make drop drip speed to match with default speed of dripping, transfusion speed can be made to level off to pre-set velocity by quick adjustment, improve the accuracy of transfusion speed; Thus the requirement of creeping motion type transfusion to tube for transfusion can be reduced, reduce transfusion cost, and air-pump type transfusion adds peristaltic pump type transfusion without the need to flask device, the adaptability of transfusion occasion can be improved, make infusion set simply portable, and ensure the stable and accurate of infusion process, effectively reduce the generation of malpractice.

Above embodiments describe the technical scheme of the infusion set that the application provides, accordingly, disclosed herein as well is the transfusion control method being applied to above-mentioned infusion set, this transfusion control method, for ensureing the stable and accurate of infusion process, effectively reduces the generation of malpractice.

Embodiment four:

The flow chart of the transfusion control method that Fig. 4 provides for the embodiment of the present application four.

With reference to shown in Fig. 4, the transfusion control method that the embodiment of the present application provides, for carrying out infusion treatment to patient, be applied in the infusion set with peristaltic pump, air pump, balance bunker, appendix, tube for transfusion and light curtain detection components, rotor and the pump housing is provided with in described peristaltic pump, described tube for transfusion passes between the rotor and the pump housing of described peristaltic pump, described peristaltic pump is used for starting or stoping under the control of described first controller, and carries out alternately extruding and discharging the medicinal liquid carried and flow in described tube for transfusion to described tube for transfusion by described rotor when starting; Described balance bunker is connected with medical liquid container by described appendix, for being input in described medical liquid container by described appendix by the gas in described balance bunker, makes medicinal liquid flow in tube for transfusion from described medical liquid container to provide gas pressure; Be provided with in described tube for transfusion and drip kettle, the medicinal liquid flowed into from described medical liquid container in described tube for transfusion forms drop in described kettle; Described transfusion control method comprises:

S11: in start-up phase, when receiving start-up command, control the startup of described air pump and pump into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping, receive the described atmospheric pressure value in the described balance bunker that described pressure transducer detects, and described atmospheric pressure value is compared with the described atmospheric pressure value dripping speed corresponding of presetting, until when described atmospheric pressure value matches with the described default atmospheric pressure value that speed is corresponding, control described peristaltic pump to stop carrying the medicinal liquid flowed in described tube for transfusion, control described air pump to continue to pump into gas in described balance bunker, receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that described air pump pumps into gas in described balance bunker, described first speed is matched with default speed of dripping,

S12: in infusion process, judge whether a described speed of presetting reduces, and determine that described presetting drips fast reducing amount, if described reducing amount exceedes preset range, control described air pump to stop pumping into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping, receive the described atmospheric pressure value in the described balance bunker that described pressure transducer detects, and described atmospheric pressure value is compared with the described atmospheric pressure value dripping speed corresponding of presetting, until when described atmospheric pressure value matches with the described default atmospheric pressure value that speed is corresponding, control described peristaltic pump to stop carrying the medicinal liquid flowed in described tube for transfusion, control the startup of described air pump and pump into gas in described balance bunker, receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that described air pump pumps into gas in described balance bunker, described first speed is matched with default speed of dripping.

The transfusion control method that the embodiment of the present application provides, can be applied to the infusion set in said apparatus embodiment, and the control method of each step is corresponding with the description in above-described embodiment, repeats no more herein.

Embodiment five:

The flow chart of the transfusion control method that Fig. 5 provides for the embodiment of the present application five.

With reference to shown in Fig. 5, the transfusion control method that the embodiment of the present application provides, for carrying out infusion treatment to patient, be applied in the infusion set with peristaltic pump, air pump, balance bunker, appendix, tube for transfusion, light curtain detection components and ultrasonic sensor, described transfusion control method comprises:

Step S21: receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated;

Step S22: receive second detection signal of described ultrasonic sensor by sending during the medicinal liquid flow velocity launching ultrasonic signal and detect in described tube for transfusion;

Step S23: first speed calculating the described drop dripped in kettle according to described first detection signal, calculate second speed of the described drop dripped in kettle according to described second detection signal, judge whether described first speed or described second speed are greater than first threshold;

Step S24: if described first speed or described second speed are greater than described first threshold, then described second speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described second speed drip speed and match with presetting;

Step S25: if described first speed or described second speed are less than or equal to described first threshold, judges whether described first speed or described second speed are greater than Second Threshold;

Step S26: if described first speed or described second speed are less than or equal to described Second Threshold, judges whether described first speed or described second speed are greater than the 3rd threshold value;

Step S27: if described first speed or described second speed are less than or equal to described 3rd threshold value, control described air pump to stop pumping into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping;

Step S28: if described first speed or described second speed are greater than described 3rd threshold value, described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described first speed drip speed and match with presetting;

Step S29: if described first speed or described second speed are greater than described Second Threshold, then judge whether described first speed and described second fast difference are greater than the 4th threshold value;

Step S30: if described first speed and described second fast difference are less than or equal to described 4th threshold value, then described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described first speed drip speed and match with presetting;

Step S31: if described first speed and described second fast difference are greater than described 4th threshold value, then control described air pump and stop pumping into gas in described balance bunker, controls described peristaltic pump and stops conveying flowing into medicinal liquid in described tube for transfusion.

The transfusion control method that the embodiment of the present application provides, can be applied to the infusion set in said apparatus embodiment, and the control method of each step is corresponding with the description in above-described embodiment, repeats no more herein.

The infusion set that the application provides and transfusion control method, for carrying out infusion treatment to patient, comprise: peristaltic pump, air pump, balance bunker, appendix, tube for transfusion, light curtain detection components and the first controller, wherein, rotor and the pump housing is provided with in described peristaltic pump, described tube for transfusion passes between the rotor and the pump housing of described peristaltic pump, described peristaltic pump is used for starting or stoping under the control of described first controller, and carries out alternately extruding and discharging the medicinal liquid carried and flow in described tube for transfusion to described tube for transfusion by described rotor when starting; Described air pump is connected with described balance bunker, for starting or stoping under the control of described first controller, and in described balance bunker, pumping into gas when starting, improving the atmospheric pressure value in described balance bunker; Described balance bunker is connected with medical liquid container by described appendix, for being input in described medical liquid container by described appendix by the gas in described balance bunker, makes medicinal liquid flow in tube for transfusion from described medical liquid container to provide gas pressure; Be provided with in described tube for transfusion and drip kettle, the medicinal liquid flowed into from described medical liquid container in described tube for transfusion forms drop in described kettle; Described light curtain detection components detects light curtain for generating, and detects the described drop dripped in kettle, and send the first detection signal when drop being detected to described first controller by described detection light curtain; Described first controller is for receiving described first detection signal, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, starting or stoping of described peristaltic pump is adjusted according to comparative result, and control starting or stoping of described air pump, described first speed is matched with default speed of dripping.Like this, can according to the requirement of different phase during transfusion, select to adopt peristaltic pump carry out alternately extruding to tube for transfusion and discharge the infusion model carrying the medicinal liquid flowed in tube for transfusion, or adopt air pump to input gas in balance bunker, in medical liquid container, the infusion model of gas is inputted again by balance bunker, the infusion model that air pump adds balance bunker can play cushioning effect to the gas be about in input medical liquid container, makes the air pressure of transfusion steady, ensures transfusion stabilization; The infusion model of peristaltic pump when needing the gas pressure in reduction balance bunker to reduce transfusion speed, can prevent medicinal liquid reflux; And the medicinal liquid drop dripped in kettle is detected by light curtain detection components, drip speed according to drop and preset a fast air pressure comparing regulating transfusion, make drop drip speed with presetting to drip speed and match, transfusion speed can be made to level off to pre-set velocity by quick adjustment, improve the accuracy of transfusion speed; Thus the requirement of creeping motion type transfusion to tube for transfusion can be reduced, reduce transfusion cost, and air-pump type transfusion adds peristaltic pump type transfusion without the need to flask device, the adaptability of transfusion occasion can be improved, make infusion set simply portable, and ensure the stable and accurate of infusion process, effectively reduce the generation of malpractice.

It should be noted that, in this article, such as " be greater than " or " exceeding " or " higher than " or " being less than " or " lower than " etc. and so on relationship description, all can be understood as " be greater than and be not equal to " or " be less than and be not equal to ", also can be understood as " being more than or equal to " or " being less than or equal to ", and not necessarily require or imply that be necessary for restriction or intrinsic a kind of situation.

In addition, in this article, the such as relational terms of " first " and " second " etc. and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.

For convenience of description, various unit is divided into describe respectively with function when describing above device.Certainly, the function of each unit can be realized in same or multiple software and/or hardware when implementing the application.

Each embodiment in this description all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for device or system embodiment, because it is substantially similar to embodiment of the method, so describe fairly simple, relevant part illustrates see the part of embodiment of the method.Apparatus and system embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed on multiple NE.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.

Professional can also recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.

The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random access memory (RAM), internal memory, read only memory (ROM), electrically programmable ROM, electrically erasable ROM, depositor, hard disk, moveable magnetic disc, CD-ROM or technical field.

To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. an infusion set, for carrying out infusion treatment to patient, is characterized in that, comprising:

Peristaltic pump, air pump, balance bunker, appendix, tube for transfusion, light curtain detection components and the first controller, wherein,

Rotor and the pump housing is provided with in described peristaltic pump, described tube for transfusion passes between the rotor and the pump housing of described peristaltic pump, described peristaltic pump is used for starting or stoping under the control of described first controller, and carries out alternately extruding and discharging the medicinal liquid carried and flow in described tube for transfusion to described tube for transfusion by described rotor when starting;

Described air pump is connected with described balance bunker, for starting or stoping under the control of described first controller, and in described balance bunker, pumping into gas when starting, improving the atmospheric pressure value in described balance bunker;

Described balance bunker is connected with medical liquid container by described appendix, for being input in described medical liquid container by described appendix by the gas in described balance bunker, makes medicinal liquid flow in tube for transfusion from described medical liquid container to provide gas pressure;

Be provided with in described tube for transfusion and drip kettle, the medicinal liquid flowed into from described medical liquid container in described tube for transfusion forms drop in described kettle;

Described light curtain detection components detects light curtain for generating, and detects the described drop dripped in kettle, and send the first detection signal when drop being detected to described first controller by described detection light curtain;

Described first controller is for controlling described peristaltic pump and the described air pump duty in different phase, and receive described first detection signal, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, adjusting described peristaltic pump according to comparative result carries the speed of the medicinal liquid flowed in described tube for transfusion or described air pump in described balance bunker, pump into the speed of gas, and described first speed is matched with default speed of dripping.

2. infusion set according to claim 1, is characterized in that, described balance bunker is connected with check valve, and described check valve is arranged between described air pump and described balance bunker, for preventing the gas backstreaming in described balance bunker in described air pump;

Described balance bunker comprises:

Pressure transducer, described pressure transducer is arranged in described balance bunker, for detecting atmospheric pressure value in described balance bunker and being sent to described first controller by the described atmospheric pressure value detected.

3. infusion set according to claim 2, is characterized in that, described first controller, specifically for:

In start-up phase, when receiving start-up command, control the startup of described air pump and pump into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping, receive the described atmospheric pressure value in the described balance bunker that described pressure transducer detects, and described atmospheric pressure value is compared with the described atmospheric pressure value dripping speed corresponding of presetting, until when described atmospheric pressure value matches with the described default atmospheric pressure value that speed is corresponding, control described peristaltic pump to stop carrying the medicinal liquid flowed in described tube for transfusion, control described air pump to continue to pump into gas in described balance bunker, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that described air pump pumps into gas in described balance bunker, described first speed is matched with default speed of dripping,

In infusion process, judge whether a described speed of presetting reduces, and determine that described presetting drips fast reducing amount, if described reducing amount exceedes preset range, control described air pump to stop pumping into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping, receive the described atmospheric pressure value in the described balance bunker that described pressure transducer detects, and described atmospheric pressure value is compared with the described atmospheric pressure value dripping speed corresponding of presetting, until when described atmospheric pressure value matches with the described default atmospheric pressure value that speed is corresponding, control described peristaltic pump to stop carrying the medicinal liquid flowed in described tube for transfusion, control the startup of described air pump and pump into gas in described balance bunker, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that described air pump pumps into gas in described balance bunker, described first speed is matched with default speed of dripping.

4. infusion set according to claim 1, is characterized in that, also comprises:

Ultrasonic sensor, described ultrasonic sensor is arranged at the end of described tube for transfusion, for being detected the medicinal liquid flow velocity in described tube for transfusion by transmitting ultrasonic signal, and sends the second detection signal when medicinal liquid flow velocity being detected to described first controller;

Then, described first controller, specifically for:

Receive described first detection signal and described second detection signal, and first speed of the described drop dripped in kettle is calculated according to described first detection signal, calculate second speed of the described drop dripped in kettle according to described second detection signal, judge whether described first speed or described second speed are greater than first threshold;

If described first speed or described second speed are greater than described first threshold, then described second speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described second speed drip speed and match with presetting;

If described first speed or described second speed are less than or equal to described first threshold, judge whether described first speed or described second speed are greater than Second Threshold;

If described first speed or described second speed are less than or equal to described Second Threshold, judge whether described first speed or described second speed are greater than the 3rd threshold value;

If described first speed or described second speed are less than or equal to described 3rd threshold value, control described air pump to stop pumping into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping;

If described first speed or described second speed are greater than described 3rd threshold value, described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described first speed drip speed and match with presetting;

If described first speed or described second speed are greater than described Second Threshold, then judge whether described first speed and described second fast difference are greater than the 4th threshold value;

If described first speed and described second fast difference are less than or equal to described 4th threshold value, then described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described first speed drip speed and match with presetting;

If described first speed and described second fast difference are greater than described 4th threshold value, then control described air pump and stop pumping into gas in described balance bunker, control described peristaltic pump and stop conveying flowing into medicinal liquid in described tube for transfusion.

5. infusion set according to claim 4, is characterized in that, also comprises:

Alarm, described alarm is connected with described first controller, for when described first speed and described second fast difference are greater than described 4th threshold value, or when described first speed or described second speed are greater than described first threshold and second speed exceedes certain value with a default difference of dripping speed, or when described first speed or described second speed are less than or equal to described first threshold and first speed exceedes certain value with a default difference of dripping speed, receive the alarm signal of described first controller and report to the police.

6. according to the infusion set in claim 1-5 described in any one, it is characterized in that, described light curtain detection components comprises:

Multiple infrared transmitting tube, multiple infrared receiving tube and second controller, wherein,

Described multiple infrared transmitting tube, as the transmitting terminal of described detection light curtain, is linearly set in qually spaced in described side of dripping kettle;

Described multiple infrared receiving tube, as the receiving terminal of described detection light curtain, is linearly set in qually spaced in the described opposite side dripping kettle, and relative with described multiple infrared transmitting tube;

Described second controller controls infrared transmitting tube and launches modulation signal to the infrared receiving tube of correspondence, and sends described first detection signal when the modulation signal that arbitrary infrared receiving tube receives changes to described first controller.

7. according to the infusion set in claim 1-5 described in any one, it is characterized in that, also comprise:

Burdick lamp and/or ozonator, for carrying out ozone and/or disinfection by ultraviolet light to the gas in described balance bunker under the control of described first controller.

8. according to the infusion set in claim 1-5 described in any one, it is characterized in that, also comprise:

Radome, described radome is arranged on the periphery of described light curtain detection components, for shielding the interference of extraneous light to described light curtain detection components.

9. a transfusion control method, for carrying out infusion treatment to patient, it is characterized in that, be applied in the infusion set with peristaltic pump, air pump, balance bunker, appendix, tube for transfusion, light curtain detection components, rotor and the pump housing is provided with in described peristaltic pump, described tube for transfusion passes between the rotor and the pump housing of described peristaltic pump, described peristaltic pump is used for starting or stoping under the control of described first controller, and carries out alternately extruding and discharging the medicinal liquid carried and flow in described tube for transfusion to described tube for transfusion by described rotor when starting; Described balance bunker is connected with medical liquid container by described appendix, for being input in described medical liquid container by described appendix by the gas in described balance bunker, makes medicinal liquid flow in tube for transfusion from described medical liquid container to provide gas pressure; Be provided with in described tube for transfusion and drip kettle, the medicinal liquid flowed into from described medical liquid container in described tube for transfusion forms drop in described kettle; Described transfusion control method comprises:

In start-up phase, when receiving start-up command, control the startup of described air pump and pump into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping, receive the described atmospheric pressure value in the described balance bunker that described pressure transducer detects, and described atmospheric pressure value is compared with the described atmospheric pressure value dripping speed corresponding of presetting, until when described atmospheric pressure value matches with the described default atmospheric pressure value that speed is corresponding, control described peristaltic pump to stop carrying the medicinal liquid flowed in described tube for transfusion, control described air pump to continue to pump into gas in described balance bunker, receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that described air pump pumps into gas in described balance bunker, described first speed is matched with default speed of dripping,

In infusion process, judge whether a described speed of presetting reduces, and determine that described presetting drips fast reducing amount, if described reducing amount exceedes preset range, control described air pump to stop pumping into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping, receive the described atmospheric pressure value in the described balance bunker that described pressure transducer detects, and described atmospheric pressure value is compared with the described atmospheric pressure value dripping speed corresponding of presetting, until when described atmospheric pressure value matches with the described default atmospheric pressure value that speed is corresponding, control described peristaltic pump to stop carrying the medicinal liquid flowed in described tube for transfusion, control the startup of described air pump and pump into gas in described balance bunker, receive the first detection signal sent described light curtain detection components detects the drop dripped in kettle of described tube for transfusion during by the detection light curtain generated, first speed of the described drop dripped in kettle is calculated according to described first detection signal, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that described air pump pumps into gas in described balance bunker, described first speed is matched with default speed of dripping.

10. transfusion control method according to claim 9, is characterized in that, also comprises ultrasonic sensor in described infusion set, then described transfusion control method also comprises:

Receive second detection signal of described ultrasonic sensor by sending during the medicinal liquid flow velocity launching ultrasonic signal and detect in described tube for transfusion;

Calculate first speed of the described drop dripped in kettle according to described first detection signal, calculate second speed of the described drop dripped in kettle according to described second detection signal, judge whether described first speed or described second speed are greater than first threshold;

If described first speed or described second speed are greater than described first threshold, then described second speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described second speed drip speed and match with presetting;

If described first speed or described second speed are less than or equal to described first threshold, judge whether described first speed or described second speed are greater than Second Threshold;

If described first speed or described second speed are less than or equal to described Second Threshold, judge whether described first speed or described second speed are greater than the 3rd threshold value;

If described first speed or described second speed are less than or equal to described 3rd threshold value, control described air pump to stop pumping into gas in described balance bunker, control described peristaltic pump and start the medicinal liquid carried and flow in described tube for transfusion, described first speed and default speed of dripping are compared, and adjust according to comparative result the speed that the conveying of described peristaltic pump flows into the medicinal liquid in described tube for transfusion, described first speed is matched with default speed of dripping;

If described first speed or described second speed are greater than described 3rd threshold value, described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described first speed drip speed and match with presetting;

If described first speed or described second speed are greater than described Second Threshold, then judge whether described first speed and described second fast difference are greater than the 4th threshold value;

If described first speed and described second fast difference are less than or equal to described 4th threshold value, then described first speed and default speed of dripping are compared, and adjust the conveying of described peristaltic pump according to comparative result and flow into the speed that the speed of the medicinal liquid in described tube for transfusion or described air pump pump into gas in described balance bunker, make described first speed drip speed and match with presetting;

If described first speed and described second fast difference are greater than described 4th threshold value, then control described air pump and stop pumping into gas in described balance bunker, control described peristaltic pump and stop conveying flowing into medicinal liquid in described tube for transfusion.