JPS63249571A - Method and apparatus for remote control of infusion set - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method and apparatus for remote management of at least one perfusion set.

[Prior Art and Problems to be Solved by the Invention] In order to slowly inject a drug solution through an intravenous line, pressure injection using an electric syringe (power syringe), pressure injection using a programmed irrigation pump, and power irrigation are required. To do this, hospitals use a variety of methods.

The first two methods mentioned above make it possible to ensure a constant flow of the drug to be injected with a high accuracy of the order of 1/1000 to 1/10000 by means of equipment placed at the foot of the head in the hospital room. It is. These devices are used in situations where it is necessary to fully monitor the flow rate of drugs to be delivered to the intensive care unit, and especially when catheters are inserted into veins to ensure complete permeability of the venous line. request that Although these matters certainly lead to increased costs, they are only used in certain limited cases.

For this reason, approximately 80% of irrigation practices in Europe rely on gravity methods. This type of perfusion has the advantage that the equipment (bottles, tubes, tubes) is inexpensive, and the installation costs are also low for properly controlling the flow rate, which requires some careful management. It is very convenient and has the advantage that the person in charge can often visit the patient during perfusion.

Adjustment of gravity perfusion must first be carried out by the person in charge by empirically estimating the perfusion flow rate that will allow the patient to extinguish the entire perfusion during the time determined by the physician. . This flow rate is normally adjusted by the person in charge several tens of minutes after the perfusion adjustment work in order to bring it closer to the optimum flow rate. Throughout the entire system of perfusion, the person in charge monitors whether the perfusion is carried out correctly and checks that there are no interruptions in the circuits that are inevitably caused by the patient.

Responsible person Yes (There are 9 instructions to administer a temporary perfusion, and in large hospitals, several responsible persons are engaged only in frequently visiting the patient's room during perfusion.

The present invention enables a single person in charge to assess the proper operation of one or more perfusion nodules located at several different locations from separate rooms; It is an object of the present invention to provide a remote management method and device that allows changes to be made within an appropriate time if an abnormality occurs during the progress of perfusion. Another particular object of the invention is to enable a single person in charge to carry out real-time constant control over the progress of a perfusion or the number of perfusions for which he or she has ongoing responsibility. . Furthermore, although the present invention is primarily concerned with managing perfusion sets by gravity,
The present invention is not limited to this type of perfusion, but is equally applicable to perfusion methods that include flow control, particularly the various types of perfusion methods described above.

[Means and effects for solving the problem] To this end, the present invention provides that each perfusion node to be managed is connected to a digital data transmission line, and each perfusion node to be managed is connected to a digital data transmission line. are assigned an identification code separate from their installation location, and the injection flow rate of the drug solution is measured for each perfusion set under management. [i is periodically sent to the central processing unit by the above line for transmitting digital data,
and for each perfusion set under control, a verification data item is displayed on at least one monitoring screen, which is one of the above identification codes as well as the instantaneous flow rate of the drug solution 2), at least for injecting the drug solution into the patient. The subject is a remote management method for one single grass, Naset.

According to another feature of the invention, the instantaneous flow rate is measured by counting the number of droplets injected during a short time period of about 1 minute and compared with the initial intended nominal flow rate;
The comparison results are now displayed.

Furthermore, the invention provides at least an electrical line for transmitting digital data, a flowmeter and a module for coding and transmission in digital form over the line of data relating to the instantaneous flow rate supplied by the flowmeter. one perfusion center, a central processing unit for processing said data connected to said line by a code-reading module, and at least one monitoring screen for displaying identification and calculation data for each perfusion center under management. The subject matter is a method for remotely managing at least one perfusion set for injecting a medical solution into a patient, the method comprising:

Preferably, the electrical line is a general purpose transmission line of a power distribution network.

Further features and advantages of the invention will become apparent from the following description of an exemplary embodiment, of which only one example is provided by way of illustration and by way of illustration in the accompanying drawings, in which: FIG.

〔Example〕

FIG. 1 shows a certain number of perfusion sets P by gravity.

A management device using a central processing unit UC of P,, pg, . . . , P7 is shown in schematic form. Each perfusion set comprises a vial 1 adapted for filling with a drug solution to be injected into the patient and connected for this purpose to a needle (not shown) by a tube 2.

The line pipe 2 is equipped with a flow meter 3 made of, for example, IMED 730 glue manufactured by IMED, USA. This flow meter 3 is probably associated with a display device (not shown) and displays the perfusion current 1 in an appreciable manner.
Easy and direct! This makes it possible to read the amount of liquid 11η per nth hour. The flowmeters 3 of the perfusion sets P1 to P are:
Each corresponds to a flow meter 3; a module +vi to M, which ensures that the data regarding the number of droplets per unit time supplied by the two is decoded and transmitted in digital form via the electrical transmission line 4; are connected to each other.

The central processing unit is connected to the transmission line 4 via a code decoding module M u c , and the modules M1 to 15M1 are connected to the transmission line 4 . Each perfusion section
P + , . . . , P, l have a serial number or identification code that is identified by a particular central processing unit.

The electrical transmission line 4 may form part of either a special network for data transmission or a direct current or alternating current power distribution network, such as a domestic low voltage alternating current power distribution network.

Since the modules M1 to M associated with the transmission line and the method of transmitting digital data by Muc are already known, a detailed explanation will be omitted.

In particular, French patent application No.
558667, two possibilities are possible.

Figure 2 shows an EFS-MPU8 that uses Motorola's MC6800816 Binoto microprocessor.
Various components of the central processing unit are shown arranged around an electrical circuit 5, such as a circuit. This electric circuit 5 includes
Code decoding module M u c , stop/start switch 6゜Their functions will be described later 6
A set of luminescent keys 7 to 12, a digital keyboard 13 for data manual operation, and Thomson's EFS-VI
Electricity is generated through a graphic processing circuit 15 such as the G-1 circuit.
A visual display screen 14 connected to the circuit 5 is associated. This electrical circuit 5 also includes an alarm, as well as a display 17, for example a liquid crystal display, connected to the test key 8 so as to display a control code or an error code for a certain number when the test key is pressed. Audible alarm generator 1 connected to a clear key 11 that turns off the alarm when it is emitted
Drive 6. Finally, a backup battery 18 is installed to ensure continued operation in the event of failure of the device's main power supply.

If appropriate, the management device may be supplemented with a remote alarm device comprising a short range radio frequency transmitter 19a connected to the electrical circuit 5 and a receiver 2N 19b to be carried by the person responsible for administering the perfusion. Can be done. receiver 1
9b may be equipped with an acoustic transducer for emitting an audible alarm as well as display means allowing identification of the perfusion set included in the alarm.

The operation of the apparatus will now be described with reference to the flowcharts of FIGS. 3 and 4, as well as FIG. 5, which shows an example of displaying four perfusion sets on the visual display screen 14.

After connecting the device to the power source and pressing the reset key 9 at stage 20, the device is led to stage 21 where the main parts of the device are initialized, and then to stage 22 where the rotational figure is displayed on the visual display screen 14. be guided.

The next stage 23 is the input key pressed by the operator.
This is a test to identify. If the young operator presses the test key 8 (stage 24), the central processing unit executes the progera 4-25 for monitoring the number of ;W style sets P, through P, , in use. Display device 1
Display the control code on 7. This test program 2
5 is completed, the procedure returns to stage 23.

Following the test stage 23, when the initialization key 10 is pressed (stage 26), the key 10 emits light as if any other key had been pressed, and the procedure proceeds to stage 27 where the initialization program is executed.

After that, the visual display screen shows four sleeping F.

The window is divided into windows F4 to F4, and the perfusion number appears in flashing letters in each window. The operator then uses the digital keyboard 1
I seedlings to be managed in each window by pressing the corresponding numbered key on 3 and activating the command input in each case by using activation key 7? Jt set P1
A number from P7 to P7 can be assigned. This number may adopt any other suitable format i[? Form a set identification code on R. and then the patient's room number and the patient's irrigation solution to be injected.

Steps are performed sequentially to introduce data regarding the amount of drug solution to be perfused and the intended perfusion time. A conversion table is stored in the central processing unit, which allows, depending on the nature of the perfused drug solution and the measured number of drops per unit time, to translate this number of drops into a drug volume. When this operating sequence is complete, the initialization program prompts the operator in the corresponding window of the screen 14 to indicate the intended mean perfusion flow rate and operates to connect to the perfusion flow rate whose number is displayed in the window. Display a message to make people aware of it. If this connection has already been made, the corresponding item of data is provided to the operator in the form of an inverted contrast of the initialized window compared to the window that had not been updated for the first time.

The procedure then advances to stage 28 and asks 'ja? A test is performed on the JC set connections. If this connection had not been made, the procedure is returned to the start of stage 2B, whereas if it had been made, it would have been pre-indicated by inverting the contrast of the window corresponding to the initialized perfusion upper nod. I would like to warn the author of this matter. Thereafter, a display as shown in the second window F2 from the left in FIG. 5 appears in this window. At the top of this window there is data about the relevant drifting cents in the form of messages displayed in alphanumeric characters, i.e. 1ffl 'tA seso 1-
number.

The patient's room number, the nature of the perfusion drug solution, the irrigation volume v1, and the scheduled perfusion time D1 are displayed. On the other hand, a graphical display of the test tube R is displayed in the same window, and the displayed test tube R
The width of is a function of the intended flow rate of the drug solution to be injected, the surface position is the number of fractions of time remaining for perfusion, and the surface defined below this surface is the number of fractions to be perfused. This is the function of the star ■ for the remaining drug solution. An arrow is displayed at the level of this liquid level, and the arrow indicates, for example, a cube of liquid to be perfused, and a letter identifying the amount and numerical value of the remaining time expressed in minutes. ■ and D are related. Similarly, the window displays a graphical representation G of the droplet pseudo-deafness with a certain rhythm, which is a function of the measured moment/Xm. The actual dropping of the droplet takes place in the corresponding container of the perfusion set. Finally, the window is completed by comparing the analog display of the instantaneous flow rate with the verified minimum and maximum values, and displaying the linear volume electrometer VM in combination with the digital display of the same minimum and maximum values. be done. The digital value of the moment/ItI is displayed adjacent to the arrow signifying the change in appearance of the two successive segments making up the analog display.

If the response of the test stage 28 indicates that the connection of the perfusion center has indeed occurred, the procedure proceeds to a subprogram 30 for management of the perfusion set.

A flowchart is shown in FIG. This subprogram 30 is initialized by an interrupt 31. The interrupts are processed by the central processing unit or the processor according to the interrupt protocol as described in French Training No. 2,558,667. Done by A Cent itself. In the text below, it is assumed that the interrupt originates from one of the modules Ml to M1 associated with the perfusion set, and its effect is that of this perfusion set (stage 32).
The central processing unit is placed in an interrogation state in order to receive messages sent by the central processing unit. The next stage 33 is
This is a test performed during the transmission between the perfusion set and the central processing unit.

If this transmission does not take place, an error message is issued in stage 34 which appears on the display "A" 7, after which the procedure returns to stage 32.

If the transmission is successful, the central processing unit will take steps to update the parameters that will be displayed on the visual display screen 14 and the window will correspond to the perfusion set that made the transmission. A number is displayed (stage 35)
). A test 36 is then performed to determine whether the updated parameters correspond to the conditions for generating an alarm.

In this case, a warning message is issued at stage 37.

The alert message issued may contain simple warning text or emergency text, designated in the following text as amber alert and red inspector, respectively.

An amber alarm causes a flash of the relevant parameter on the screen 14 and possibly a supplementary alarm light, and this amber alarm condition continues until the cause is removed. The reason is that the measured instantaneous flow rate deviates from the minimum and maximum limits; the instantaneous flow rate is zero for a certain period of time that is shorter than a predetermined time, e.g. 4 minutes, which is a function of the blood clotting time. the perfusion set is not connected for a period of time that is less than a predetermined time, e.g. 4 minutes, which is a function of the blood clotting time; and the clear key is pressed by the operator, resulting in a red If the alarm condition is converted to an amber alarm;

A red alarm will flash the relevant parameters on the visual display screen 14, but will not be triggered by flashing the clear key 11, flashing a warning light, or issuing a siren-type or voice synthesizer-type message. If it is ready, it is indicated by whether the generator and the press of the clear key generate an audible signal in the form of a siren type or a voice synthesized type message.

Furthermore, if a remote alarm device is equipped, it can be activated to alert the responsible nurse of the abnormal progress of the perfusion concerned.

The nurse is notified of the presence of the abnormality by an audible signal, and she is informed of the perfusion set concerned by means of a display that displays the patient's room number or any other data item identifying the perfusion center concerned. can be identified using a portable receiver.

A red alarm occurs when the instantaneous flow rate remains zero or when the perfusion set remains disconnected for more than the predetermined time period mentioned above, or when the last of the parameters is e.g. 20 minutes. Emitted when the remaining perfusion time is less than a predetermined value.

When the clear key 11 is pressed, the red alarm is converted to an amber alarm, ie, the generation of an audible signal at the location of the generator 16 and receiver 19b is interrupted and the warning light for that key is extinguished. As a variant, this clearing function may be removed for safety reasons. Restoration of the device to a state of compliance can be achieved by eliminating the cause of the red alarm (zero flow or disconnection of the perfusion set) or by pressing the Initialize or Update keys 10 or 12. achieved by
Initialization and update warning lights are also emitted during the above-mentioned last leg of the perfusion time.

After stage 37 or test 36 if there is a negative response, the procedure proceeds to test 38 to determine whether the updated parameters correspond to a red alarm condition. If this corresponds to a red alert condition, a flag is raised at 39 and the procedure returns to the main program (stage 40). The same applies if the response to test 38 is negative.

The next stages 41 and 42 of the main program consist of refreshing the basic image and updating the variable regions of this image, ie the window of the perfusion set concerned. A test 43 is then performed to determine whether one of the input keys 7-12 has been pressed. In case of negation, the procedure returns to the beginning of the subprogram 30 for the management of perfusion cents. This subprogram updates the parameters of each perfusion upper nod, for example, every minute! Each ? with a repetition rate that is a function of the interrupts issued by each of the seven nodes above, as guaranteed by IJI. Repeated for NtR upper set. In other words, each window on the visual display screen 14 is refreshed every minute.

A positive response to test 43 means that one of keys 7 to 12 has been pressed. Pressing a key causes a specific code to be generated which is recognized by the central processing unit. If the key is clear key 11 (stage 44), in 45 subprogram 30
A test is performed at stage 39 to determine whether the flag has been raised. In case of denial,
The procedure returns to test 43, whereas in the affirmative, the fuser program for conversion from red alarm to amber alarm is executed. After this subprogram 46 is executed,
The procedure begins at the beginning of subprogram 30.

When the operator creates one update key 12 (stage 4)
7), the subprogram 4th to make it the latest version is executed. This subprogram is similar to the initialization program and is designed to update the graphical display appearing in the window only in situations where the parameters determining the graphical display have been modified. The end of this subprogram 48 returns to the beginning of subprogram 30.

If the test key is pressed (stage 49), the procedure proceeds to a test program 5o similar to the test program of stage 25 and then returns to the beginning of subprogram 30.

Finally, by operating the initialization key 10, the initialization program 27 is
(Stage 51).

It should be further noted that the only function of the confirmation key 7 is to enable the central processing unit to accept the values introduced by the keyboard 13 in the course of the initialization program 27 or the update program 48, and in other cases This means that it has no effect on the execution of the main program. It should also be noted that the action of the clear key 11 or the update key 12 during the test 23 step returns directly to the beginning of this test.

FIG. 6 shows a variation of the graphical display appearing in the window of the visual display screen 14. In this variant, the container figure R has the symbolic shape of a perfusion bottle, and the volumetric unit V
The letter M is placed vertically on the end of the bottle, which should form the mouth of the bottle. This volumetric unit VM is represented in the form of a series of continuous elements of triangles 52 symbolizing droplets. Not only the plurality of elements included between the minimum flow rate and the measured instantaneous flow rate, but also the elements 52 at both ends corresponding to the acceptable minimum flow rate and maximum meteorite, respectively, are included between the measured instantaneous flow rate and the verified instantaneous flow rate. Elements between the maximum flow rate and the maximum flow rate may have a different appearance. As in the case of Fig. 5, the numerical value is the minimum/A quantity Δm
in, maximum flow rate Δmax, 71tlI may be displayed to represent elements corresponding to the determined instantaneous flow rate Δins tan taneous and the intended flow rate Δ1ntended, respectively.

It is likewise possible to use the volumetric unit M of FIG. 6 to imitate the actual fall of a droplet at a velocity that is a fold of the measured instantaneous flow.

As is clear from the above description, the remote management device according to the invention makes it possible to ensure close monitoring of the patient during perfusion without the need for multiple visits to the patient's room. The progress of perfusion can be controlled on a constant basis, the control conditions are comfortable for the medical team, and the time required to take action in case of an abnormality can be reduced to the minimum level. The present device represents a decisive advance for gravity perfusion monitoring, and at the same time can be employed in other forms of perfusion performed using specifically programmed pumps.

Specific perfusion flow pressure conditions (piping type) for each hospital department.

The center p! 'Modification of the coefficients limiting the reference unit volume of the droplet (apart from modifications related to the properties of the chemical liquid or the flow rate value) by manual operation of the graduated handle placed behind the second position. is possible. It is therefore possible to calibrate the device in response to new implementation capacities (for example changes in feeders to piping) adopted in the hospital sector.

In a preferred embodiment, the device described above does not require the establishment of auxiliary connection infrastructure through the use of a domestic low voltage power distribution network. On the other hand, no matter how the patient being perfused moves (changing hands, changing rooms), the patient can be easily maintained in a perfused state by connecting to one of the wall sockets. The perfusion cent remains identified by a specific number (identification code) and data regarding this cent are displayed in the window assigned that number. If necessary, the operator will have to modify the room number appearing in the window. In addition to or instead of the room number, an identification code or patient's name may be displayed on the window.

As a variant, it is also possible to associate a sub-encoder with each socket, which is connected to the actual encoder. This sub-encoder generates a geographic location code to be added to the perfusion set identification code in such a way that identification of each perfusion set and its location is automatically performed.

On the other hand, by means of this device it is also possible to organize the telephone management in the sick person's home, by means of a wider network, such as the exchange network of a post office or a telephone office. This device is not limited in any way as to the number of perfusion sets to be monitored; the primary limitation is with respect to the ability of the person in charge to manage a large number of perfusion stations. For example, with four visual display screens, each divided into four vertical windows, it is possible to manage up to 16 perfusion stations in one person's responsibility.

After Q, it should be noted that this device consists of a module MUC having encoding capability and modules M to M having code decoding capability. By providing this, it is also possible to use it for remote control of the perfusion center. For such remote control, it is equally possible to rely on the networks and protocols for data exchange between the terminal and the source processing device, as described in the already mentioned French Special No. 2,558,667. The central processing unit is adapted to control each pump of the perfusion cent according to the baseline value.

In addition, each perfusion vessel is provided with a minimum level calibrated, for example, a photodiode associated with a phototransistor, which can detect changes in the level of the drug solution as changes in the refractive index and generate an alarm for the end of perfusion. It is possible to provide a server.

〔Effect of the invention〕

As described above (according to the present invention), not only can a large number of perfusion centers be managed manually, but also the perfusion flow rate for each patient can be strictly and accurately controlled.
Its practical value for this type of medical sector is enormous.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the far-end management device of the perfusion set using gravity, Fig. 2 is a block diagram of the central processing unit of the apparatus shown in Fig. 1, and Fig. 3 is a diagram of the system executed by the central processing unit shown in Fig. 2. Flowchart 1 of the main program and FIG. 4 are flowcharts of subprograms showing the processing procedure of the perfusion set from the central processing unit. l...bottle, 2...tube, 3...flow meter, 4...
・・・Electrical transmission line, 5... Electric circuit, 6...
...stop/start switch, 7-12...luminous key, 13...digital keyboard, 14...
...Visual display screen, 15...Graphic processing circuit,
16...Audible alarm generator, 17...Display device,
18...Backup battery, 19a...High frequency transmitter, 19b...Receiver, 20-51...Stage (test), 52...Triangle symbolizing droplet, Ml ~M7...Coding module, M u
c...Code decoding module, UC...Central processing unit, F1-F4...Window, VM...Linear volume unit needle, P, ~P7...Perfusion set, R...
...Bottle graphic display, ■1... Laminar flow rate, Dl...
Perfusion time. L--1---------------11-
---------'' Procedural amendment (method) July 16, 1988 1, Case description Patent Application No. 1982-70585 2, Issued
Akira's name Method and device for remote control of perfusion cents 3, Person making the amendment Relationship to the case 1 person for patent Address 78373 Presir Sedex, Boite Bostal, France 3rd name Hertan, Engineering, Kompani representative Giorgier Moldo Ciel Regnier 4, Agent 196, Shinbashi 5, Minato-ku, Tokyo 105, Column for a brief explanation of the drawing of Specification 4 subject to amendment. 7. Contents of the amendment (1) The following statement is inserted before "is." on page 31, line 13 of the specification. 5 is a diagram showing the display form of the visual display screen for the management of the /8i flow, and FIG. 6 is a diagram showing a modification of the display data related to the monitoring of the l〃 flow appearing in the window of the visual display screen.

Claims (23)

[Claims] (1) Each perfusion set to be managed is connected to a digital data transmission line, and each perfusion set is given an identification code separate from its installation location. the infusion flow rate is measured, the information is periodically sent to the central processing unit via the transmission line, and for each perfusion set there is at least one verification data item that is a function of the instantaneous flow rate of the drug solution and the identification code. A method for remote management of at least one perfusion set for injecting a medical solution into a patient, the method being adapted to be displayed on a monitoring screen. (2) Information regarding the instantaneous flow rate includes the remaining perfusion time and the remaining amount of the drug solution to be injected, which is calculated by the central processing unit from the measured instantaneous flow rate and the initial perfusion data including the amount of the drug solution to be injected. the at least one quantity representing each ongoing perfusion condition, including: and each updated quantity being displayed on the monitoring screen. The method according to claim (1). (3) The instantaneous flow rate is measured by counting the number of droplets injected during a short period of about 1 minute and compared with the originally intended nominal flow rate, and the result of the comparison is displayed. The method described in scope (2). (4) At least one of the following conditions is detected: the instantaneous flow rate is greater than a predetermined maximum value or less than a predetermined minimum value, the instantaneous flow rate is zero, and the perfusion set is disconnected from the central processing unit. Claims (1) The first alarm device is activated when the
The method described in 2). (5) the instantaneous flow rate is maintained at zero during a period of time during which the instantaneous flow exceeds a first predetermined limit; and from the central processing unit during a period of time during which the perfusion set exceeds a second predetermined limit. a second alarm device is adapted to be activated if at least one condition is detected: the calculated remaining perfusion time is less than a predetermined third limit; , Claims (
The method described in 4). (6) The method of claim (5), wherein said first and second predetermined limits are functions of blood clotting time. 7. The method of claim 5, wherein the switching from the second alarm device to the first alarm device is performed by a manual command triggered by a terminal associated with the central processing unit. (8) The first alarm device includes a lighting device that emits at least one warning light, and the second alarm device includes a flash device that emits another warning light and an audible signal emitting device. , the method according to claim (5). (9) including a container depiction device of a volume display device representing the status of said perfusion set, the width of the depicted container being a function of the intended flow rate of the medicinal solution to be injected and the liquid level position being a function of the remaining volume; according to any one of claims (4) to (8), wherein the surface defined below the liquid level is a function of the amount of residual drug solution to be perfused. the method of. 10. A method as claimed in claim 9, characterized in that a graphical representation of the droplet is produced which imitates a real droplet falling at a rate that is a function of the measured instantaneous flow rate. (11) The instantaneous flow rate is displayed on a linear volumetric unit meter limited at both ends by predetermined minimum and maximum values of the flow rate. Method. (12) The linear volumetric unit meter is arranged vertically below the graphic representation of the container and is represented in the form of a series of continuous elements symbolizing droplets, and is configured to provide a predetermined minimum flow rate. The above element included between the measured instantaneous flow rate and the measured instantaneous flow rate is displayed with a different appearance from the above element included between the measured instantaneous flow rate and the predetermined maximum flow rate. The method according to claim (11), wherein (13) The monitoring screen is divided into a plurality of vertical windows, each window being assigned to display recognition data and quantities representative of the status of a particular perfusion set. the method of. (14) Claim (13) wherein the identification data displayed on the window includes not only information about the patient undergoing perfusion (identity, location, etc.) but also a specific identification code for the corresponding perfusion set. The method described in. (15) Electrical lines for transmitting digital data, a flowmeter and a code, data regarding the instantaneous flow rate supplied by the flowmeter, and the identification code of the perfusion set in addition to the location where the flowmeter is installed. at least one perfusion set including a module for transmission in digital format over the data, a central processing unit for identifying the code and processing the data, and identification and calculation for each perfusion set under management; at least one monitoring screen for displaying data; and at least one perfusion set for injecting a medical solution into a patient, the central processing unit being connected to the line via a code-reading module. remote management device. (16) The central processing unit has function keys, a fractional keyboard,
16. The device according to claim 15, comprising a processor associated with display means and alarm generation means by means of a graphic generation circuit. (17) The device according to claim (15), wherein the flow meter is a drop counter. (18) When the perfusion flow rate is controlled by an automatically controlled pump for each set, the module associated with each set includes means for decoding the code, and the module associated with the central processing unit controls each pump by the central processing unit. including means for decoding digital data for
The device according to claim (15). 19. The apparatus of claim 15, wherein the electrical line is a general purpose transmission line of a power distribution network. (20) The device of claim (15), wherein each perfusion container includes a level sensor capable of providing a signal for activating an alarm device by detection of the lowest level of the drug solution. (21) A remote alarm device including a high frequency transmitter and a portable receiver connected to a central processing unit, and the receiver generates a warning signal when the central processing unit detects an abnormality in the operation of the perfusion set. The scope of the patent claims (
15). 22. The apparatus of claim 21, wherein the receiver includes an acoustic transducer and means for displaying a data item identifying a perfusion set exhibiting a malfunction. 23. The apparatus of claim 17, wherein means for calibrating the unit volume of each drop counted by the drop counter are associated with the central processing unit.