CN102631727A - Infusion monitoring apparatus and monitoring method thereof - Google Patents

Abstract

The invention discloses an infusion monitoring apparatus and a monitoring method thereof. The infusion monitoring apparatus consists of a gravity sensor, a data acquisition unit, a data processing unit, terminal equipment and a power source. The infusion monitoring method comprises the following steps of: leading the sum of the weight of an infusion container, the weight of liquid medicine in the container and the weight of accessories to be equal to the initial weight Wo of the liquid medicine, and automatically judging the weight WG of the liquid medicine in the container by analysis software according to the standard of the infusion container; computing the dynamic change numerical value of the infusion speed, the time required for infusing residual liquid and the liquid level liquid quantity in the infusion container by a microprocessor, and when the dynamic change numerical value of the infusion speed and the liquid level liquid quantity in the infusion container exceed the critical alarm points of the dynamic change numerical value of the corresponding infusion speed and liquid level liquid quantity in the infusion container, sending out an alarm signal; and displaying all data of infusion parameters by a displayer, and sending to a nurse center by a wire network or a wireless network, so that the dynamic change process of the infusion process can be timely monitored by medical workers, and the problem of various inconveniences of the medical workers and the patients during infusion can be solved.

Description

A kind of infusion monitoring appearance and monitoring method thereof

Technical field:

The present invention relates to a kind of infusion monitoring appearance and monitoring method thereof; Relate in particular to a kind of employing gravity sensor the infusion flow voltage value is carried out the digitized conversion; And adopt data acquisition unit and processing unit that the voltage signal of gathering is carried out operational analysis mensuration transfusion speed, again according to the infusion monitoring appearance and the monitoring method thereof of various parameters such as speed calculation transfusion time.

Background technology:

All have a large amount of patients to infuse every day in the hospital now; Traditional infusion process often reaches several hrs, in this process, needs the variation that the people pays close attention to liquid in the infusion bottle, does not in time change medicinal liquid or taking-up infusion needle because transfusion in a single day finishes; The blood back phenomenon will take place; Malpractice taking place, can threaten patient's life when serious, generally adopts artificial method of guarding by me and family members thereof with medical personnel in the infusion process; Observe its transfusion liquid measure, liquid speed, transfusion time and residue medicinal liquid etc., bring very big mental burden for like this patient and family members thereof and medical personnel.In the existing infusion set, only have the transfusion prompt functions mostly, promptly when transfusion finishes, send alarm signal, can worry that for the patient transfusion speed is too fast or slow excessively in infusion process, break down or disruption, infusion alarm just can't solve.For overcoming the above problems; Invented in the practice and adopted photoelectric sensor to measure the device of transfusion speed, though this device can be measured transfusion speed, have following shortcoming in the use: photoelectric sensor is adopted in (1); Just must isolated plant be installed on transfusion shelf or tube for transfusion and be used for fixing photocell; If patient's interruption (as go to toilet etc.) infuse and take off infusion vessel, photoelectric sensor just can't be worked, and uses extremely inconvenient like this; (2) photocell in the photoelectric sensor can't be differentiated the infusion vessel specifications parameter automatically, sets alarm if desired, just needs the nurse manually to set and adjusting, increases the nurse job amount so on the contrary; (3) photoelectric sensor needs Alternating Current Power Supply, and photocell power consumption is big, but in the actual use, the many occasions of hospital do not have alternating current (like the hall etc. of infusing) just can't use.So the warning speed measuring device of photo-electric does not have practicality, can not promote the use of on a large scale in hospital.

Summary of the invention:

The present invention is directed to the deficiency of prior art; A kind of numerical value such as dynamic change that can be determined at liquid level liquid measure in transfusion speed, remaining liq need be infused in the infusion process in the unit interval time and the infusion vessel are provided; And promptly can realize various signal alarm promptings; Can realize the transfusion remote monitoring through network again, can write down the infusion monitoring appearance and the monitoring method thereof of transfusion overall process simultaneously.

For realizing above purpose, the technical scheme that the present invention adopts is:

A kind of infusion monitoring appearance is made up of gravity sensor, data acquisition unit, data processing unit, terminal unit and power supply; Gravity sensor adopts the high sensitivity bridge type to constitute; The weight signal that gravity sensor is gathered all size infusion vessel and container inner liquid medicine converts voltage signal into; Gravity sensor links to each other through electric wire with data acquisition unit; Data acquisition unit is measured voltage signal, and converts measurement result into digital signal, through digital encoder digital signal is carried out coding transmission to data processing unit; Data processing unit carries out computational analysis to data; Draw the dynamic change numerical value of liquid level liquid measure in time T that transfusion speed, remaining liq need infuse and the infusion vessel, data processing unit is connected through electric wire or radio communication with terminal unit, and the result data are shown through terminal unit; Wherein power supply is that gravity sensor, data acquisition unit, data processing unit and terminal unit provide power supply.

Said data acquisition unit comprises single-chip microcomputer, synchronization control circuit, controller.

Said synchronization control circuit is made up of precision timing circuit and control circuit.

Said data processing unit is made up of microprocessor, precision interval clock circuit, digital coding circuit.

Said terminal unit is made up of LCDs, sound circuit, wireless transmission/receiving circuit; LCDs shows the infusion parameter such as time that infusion vessel specification, transfusion speed, medicinal liquid need be infused; Sound circuit is the transfusion end or infuses to break down and send voice prompt when stopping suddenly, submits to medical personnel to note; Wireless transmission/receiving circuit is that the data that data processing unit is handled send to the receptor that network receives, and after receptor received signal, repeated transmission was delivered to network system.

In the said data acquisition unit single-chip data acquisition circuit resolution 100,000/more than; Have 18 above digital codes; Because the weight of a drops physic liquor is 50 milligrams; The infusion vessel gross weight can reach 900 grams, just necessarily requires 100,000/could measure the variation of a drops physic liquor from 50 milligrams of dynamic ranges to 900 grams, could guarantee the accuracy of test speed like this.

A kind of monitoring method of infusion monitoring appearance, its step is following:

(1) at first in data processing unit microprocessor set the judgement of following four kinds of situation:

A:, judge that with this weight W G of container inner liquid medicine is respectively 50,100,250 and 500 grams according to different vessels specification (50,100,250 and 500 milliliters) scope of gross weight WO when beginning to infuse;

B: set the different vessels specification and when reporting to the police, remain medicinal liquid weight W B in the corresponding container, unit is gram;

C: each drops physic liquor weight is 50 milligrams when infusing according to conventional infusion vessel, judges that transfusion weight one gram is 20;

D: set one milliliter of medicinal liquid weight and be regarded as a gram;

(2) after container hangs on the hook of infusion monitoring appearance lower end; Gravity sensor collects gross weight WO when beginning to infuse (comprising container, medicinal liquid, tube for transfusion and other adnexaes); According to gross weight; Data processing unit is differentiated the different gross weight WT and the interior medicinal liquid reduction Δ W of corresponding time T constantly of weight W G, infusion process of container inner liquid medicine, Δ W=WO-WT automatically according to the specification limit of setting container; Thereby calculating transfusion speed: V=Δ W (gram) * 20 (drip/gram) ÷ T (branch), the measurement unit XXX of V drip/minute; And then residue medicinal liquid weight W Y in the calculating infusion vessel, WY=WG-Δ W is because of residue medicinal liquid weight is changing value, so this part numerical value is exactly the dynamic change numerical value of liquid level liquid measure in the infusion vessel; Calculate the time T S=(WY-WB) * 20 that remaining liq need be infused in the container (dripping/gram) ÷ V (droplet/minute) at last, the TS unit of account is " branch "; After microprocessor calculates the dynamic change numerical value of liquid level liquid measure in time that transfusion speed, remaining liq need infuse and the infusion vessel in the data processing unit; Can and set the warning weight ratio with container inner liquid medicine weight; If when weight is consistent, send alarm signal; While can be judged that transfusion speed is too fast or cross and then also send alarm signal slowly;

(3) total datas such as dynamic change numerical value of liquid level liquid measure show through terminal unit in the time that need infuse of transfusion speed, remaining liq and the infusion vessel, or are sent to the nurse center through wired or wireless network.

The present invention's advantage compared with prior art is: (1) is easy to use, and the nurse need not set or regulate after hanging over infusion vessel on the hook of infusion monitoring appearance lower end, does not in use change original mode of operation; For patient; After transfusion is taken off infusion vessel midway, as go to go to toilet to waiting and disruption occurs, and then infusion vessel is hung in fuction monitoring device for infusion links up with; Various data differentiated and calculated to data processing unit can automatically in the monitor, is not affected for final warning.(2) the infusion monitoring appearance can be determined at the numerical value such as dynamic change of liquid level liquid measure in transfusion speed, remaining liq need be infused in the infusion process in the unit interval time and the infusion vessel; And be sent to the nurse operation platform through network; Realize remote monitoring; Medical personnel can see the dynamic change of transfusion overall process in real time; The real problem that solves medical personnel and the various inconveniences of patient when transfusion has improved medical personnel's work efficiency and nursing quality greatly, has alleviated medical personnel's workload.(3) the infusion monitoring appearance adopts gravity sensor to use unidirectional current, and power consumption is few, and very power saving was filled once more than electric available half a year, and not limited by use occasion, had use value very much, can promote the use of on a large scale.

Description of drawings:

Fig. 1 is the frame principle figure of infusion monitoring appearance of the present invention;

Fig. 2 is the frame principle figure of data acquisition unit among Fig. 1;

Fig. 3 is the frame principle figure of data processing unit among Fig. 1;

The specific embodiment:

As shown in Figure 1, a kind of infusion monitoring appearance is made up ofgravity sensor 1,data acquisition unit 2,data processing unit 3, terminal unit 4 and power supply 5; Infusion monitoring appearance upper end hangs on the transfusion pole; Infusion vessel hangs on the hook of infusion monitoring appearance lower end, andgravity sensor 1 adopts the high sensitivity bridge type to constitute, and the weight signal thatgravity sensor 1 is gathered all size infusion vessel and container inner liquid medicine converts voltage signal into;Gravity sensor 1 anddata acquisition unit 2 link to each other through electric wire; 2 pairs of voltage signals of data acquisition unit are measured, and convert measurement result into digital signal, through delivering todata processing unit 3 after encoding; 3 pairs of data of data processing unit are carried out computational analysis; Draw the dynamic change numerical value of liquid level liquid measure in time that transfusion speed, remaining liq need infuse and the infusion vessel,data processing unit 3 is connected through electric wire or radio communication with terminal unit 4, the result data is established 4 through the terminal show fully; Wherein power supply 5 provides power supply forgravity sensor 1,data acquisition unit 2,data processing unit 3 and terminal unit 4.

As shown in Figure 2, saiddata acquisition unit 2 comprises single-chip microcomputer 21,synchronization control circuit 22,controller 23; Single-chip microcomputer 21 is core components of whole infusion monitoring appearance, and the voltage signal that single-chip microcomputer 21 receivesgravity sensor 1 output carries out the digitized conversion, and flow is very little during owing to patient infusion; Each drips very light in weight, and very small, the voltage signal that weight sensor is changed out is very faint; So single-chip microcomputer 21 data acquisition circuit resolution must be 100,000/more than; Function with 18 above digital translation could be measured the variation of a drops physic liquor, guarantees the accuracy of test speed; The time of using when 24 pairs of execution speeds of precision timing circuit calculate in thesynchronization control circuit 22 is carried out timing, the weight that transfusion liquid reduces in measurement unit's time;Control circuit 25 in thesynchronization control circuit 22 guarantees to sample when peeking and processing unit keeps synchronously; 23 pairs of single-chip microcomputers ofcontroller 21 carry out data acquisition, storage, coding, anddata collecting unit 2 is carried out zero clearing reset, calibrate detection;Synchronization control circuit 22 is sent todata processing unit 3 with digital signal simultaneously.

As shown in Figure 3, saiddata processing unit 3 comprises bymicroprocessor 31, precisioninterval clock circuit 32,digital coding circuit 33; Digital data transmission is tomicroprocessor 31;Microprocessor 31 is compared the various container capacity specifications of data base; Confirm the actual specification of infusion vessel; Carry out analysis meter then and calculate the dynamic change numerical value of liquid level liquid measure in time that transfusion speed, remaining liq need infuse and the infusion vessel; When the dynamic change numerical value of liquid level liquid measure exceeds the critical alarm point of dynamic change numerical value of corresponding transfusion speed and the interior liquid level liquid measure of infusion vessel in transfusion speed and the infusion vessel or infusion vessel herb liquid flow interrupt, send alarm signal, have digital input/output interface on themicroprocessor 31; Through precisioninterval clock circuit 32 carry out withdata acquisition unit 2 synchronized transmissions with accept data; Guarantee anddata acquisition unit 2 synchronous receiving datas, and the accuracy of writing time when also guaranteeing computational speed, deal with data is exported through the I/O mouth;Digital coding circuit 33 has two geocoding functions, monitor physical address coding and wireless transmission/received code, and coding result can show on display, also can get into network through transmission/receiving circuit.

A kind of monitoring method of infusion monitoring appearance, its step is following:

(1) infusion vessel weight, container inner liquid medicine weight and weight of attachment sum are equaled medicinal liquid starting weight Wo, differentiate automatically by the infusion vessel specification with analysis software, infusion vessel generally is divided into four kinds according to specification; Contain medicinal liquid 50; 100,250 and 500 milliliters, promptly container inner liquid medicine weight is respectively 50 grams; 100 grams, four kinds of 250 grams and 500 grams:

For example: 500 milliliters of infusion vessel setting weight scopes are: 510 gram≤WG≤900 grams, as long as the transfusion beginning, collecting unit records gross weight Wo in this scope, and it is 500 milliliters that microprocessor just can be differentiated containers size, and medicinal liquid weight W G is 500 grams.

(2) after container hangs on the hook of infusion monitoring appearance lower end; Gravity sensor collects gross weight WO when beginning to infuse (comprising container, medicinal liquid, tube for transfusion and other adnexaes); According to gross weight; Data processing unit is differentiated the different gross weight WT and the interior medicinal liquid reduction Δ W of corresponding time T constantly of weight W G, infusion process of container inner liquid medicine, Δ W=WO-WT automatically according to the specification limit of setting container; Thereby calculating transfusion speed: V=Δ W (gram) * 20 (drip/gram) ÷ T (branch), the measurement unit XXX of V drip/minute; And then residue medicinal liquid weight W Y in the calculating infusion vessel, WY=WG-Δ W is because of residue medicinal liquid weight is changing value, so this part numerical value is exactly the dynamic change numerical value of liquid level liquid measure in the infusion vessel; Calculate the time T S=(WY-WB) * 20 that remaining liq need be infused in the container (dripping/gram) ÷ V (droplet/minute) at last, the TS unit of account is " branch "; Microprocessor calculates the dynamic change numerical value of liquid level liquid measure in time that transfusion speed, remaining liq need infuse and the infusion vessel; When the dynamic change numerical value of liquid level liquid measure exceeds the critical alarm point of dynamic change numerical value of corresponding transfusion speed and the interior liquid level liquid measure of infusion vessel in transfusion speed and the infusion vessel, send alarm signal; Microprocessor relatively remains liquid weight alarm point WB in medicinal liquid weight W Y and the predetermined container, when residue medicinal liquid weight W Y is equal to or less than in the predetermined container liquid weight alarm point WB, sends alarm signal.

(3) total datas such as dynamic change numerical value of liquid level liquid measure show through terminal unit in the time that need infuse of transfusion speed, remaining liq and the infusion vessel; Or be sent to the nurse center through wired or wireless network; Liquid level liquid measure when seeing each patient infusion, to drip fast real-time change dynamic, realizes the transfusion remote monitoring; Simultaneously monitor also can receive any information of automatic network through network node (receptor), in infusion vessel, increases the parameters such as capacity of medicinal liquid like the nurse, and monitor is received these parameters, when calculated capacity, can figure the numerical value of increase again in.

That the present invention has is simple in structure, cost is low, be prone to install, convenient moving used, calculated advantages such as accurate, can realize not having the transfusion of accompanying and attending to, and has great promotional value.

Claims (7)

1. an infusion monitoring appearance is made up of gravity sensor, data acquisition unit, data processing unit, terminal unit and power supply; It is characterized in that: gravity sensor adopts the high sensitivity bridge type to constitute; Gravity sensor links to each other through electric wire with data acquisition unit; Data acquisition unit is measured voltage signal; And converting measurement result into digital data transmission to data processing unit, data processing unit is connected through electric wire or radio communication with terminal unit, and the result data are shown through terminal unit.

2. a kind of infusion monitoring appearance according to claim 1, it is characterized in that: said data acquisition unit comprises single-chip microcomputer, synchronization control circuit, controller.

3. a kind of infusion monitoring appearance according to claim 2, it is characterized in that: said synchronization control circuit is made up of precision timing circuit and control circuit.

4. a kind of infusion monitoring appearance according to claim 1 is characterized in that: said data processing unit is made up of microprocessor, precision interval clock circuit, digital coding circuit.

5. a kind of infusion monitoring appearance according to claim 1, it is characterized in that: said terminal unit is made up of LCDs, sound circuit, wireless transmission/receiving circuit.

6. a kind of infusion monitoring appearance according to claim 2 is characterized in that: in the said data acquisition unit single-chip data acquisition circuit resolution 100,000/more than, have 18 above digital codes.

7. the monitoring method of an infusion monitoring appearance, it is characterized in that: its step is following:

(1) at first in data processing unit microprocessor set the judgement of following four kinds of situation:

A:, judge that with this weight W G of container inner liquid medicine is respectively 50,100,250 and 500 grams according to the scope of different vessels specification gross weight WO when beginning to infuse;

B: set the different vessels specification and when reporting to the police, remain medicinal liquid weight W B in the corresponding container, unit is gram;

C: each drops physic liquor weight is 50 milligrams when infusing according to conventional infusion vessel, judges that transfusion weight one gram is 20;

D: set one milliliter of medicinal liquid weight and be regarded as a gram;

(2) after container hung on the hook of infusion monitoring appearance lower end, gravity sensor collected gross weight WO when beginning to infuse, and comprises container; Medicinal liquid; Tube for transfusion and other adnexaes, according to gross weight, data processing unit is according to the specification limit of setting container; Automatically differentiate the different gross weight WT and the interior medicinal liquid reduction Δ W of corresponding time T constantly of weight W G, infusion process of container inner liquid medicine; Δ W=WO-WT, thus calculate transfusion speed: and V=Δ W (gram) * 20 (drip/gram) ÷ T (branch), the measurement unit XXX of V drip/minute; And then residue medicinal liquid weight W Y in the calculating infusion vessel, WY=WG-Δ W is because of residue medicinal liquid weight is changing value, so this part numerical value is exactly the dynamic change numerical value of liquid level liquid measure in the infusion vessel; Calculate the time T S=(WY-WB) * 20 that remaining liq need be infused in the container (dripping/gram) ÷ V (droplet/minute) at last, the TS unit of account is " branch "; After microprocessor calculates the dynamic change numerical value of liquid level liquid measure in time that transfusion speed, remaining liq need infuse and the infusion vessel in the data processing unit; Can and set the warning weight ratio with container inner liquid medicine weight; If when weight is consistent, send alarm signal; While can be judged that transfusion speed is too fast or cross and then also send alarm signal slowly;

(3) total datas such as dynamic change numerical value of liquid level liquid measure show through terminal unit in the time that need infuse of transfusion speed, remaining liq and the infusion vessel, or are sent to the nurse center through wired or wireless network.

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