Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberWO1985000292 A1
Publication typeApplication
Application numberPCT/GB1984/000249
Publication date31 Jan 1985
Filing date10 Jul 1984
Priority date11 Jul 1983
Also published asEP0149653A1
Publication numberPCT/1984/249, PCT/GB/1984/000249, PCT/GB/1984/00249, PCT/GB/84/000249, PCT/GB/84/00249, PCT/GB1984/000249, PCT/GB1984/00249, PCT/GB1984000249, PCT/GB198400249, PCT/GB84/000249, PCT/GB84/00249, PCT/GB84000249, PCT/GB8400249, WO 1985/000292 A1, WO 1985000292 A1, WO 1985000292A1, WO 8500292 A1, WO 8500292A1, WO-A1-1985000292, WO-A1-8500292, WO1985/000292A1, WO1985000292 A1, WO1985000292A1, WO8500292 A1, WO8500292A1
InventorsRonald Alan Coffee, Peter Charles Bennett, Leonard Eric Houghton, Graham Charles Johnson
ApplicantImperial Chemical Industries Plc
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
Fluid delivery apparatus
WO 1985000292 A1
Abstract
Apparatus for supplying a patient with a fluid from a container (1) having a memory device (2) associated therewith. The memory device contains information relating to the contents of the container, such as the nature of the contents and the volume remaining within the container. Means (6) are provided for monitoring a body parameter indicative of the patient's condition and further means are provided for storing information defining the rate of flow of various fluids required for various body conditions. A processor reads the information contained in the memory device and the stored information actuates a flow control device (4) associated with the container in accordance with signals supplied by the monitoring means.
Claims  (OCR text may contain errors)
1. Apparatus for supplying a patient with a fluid comprising means for monitoring a parameter indicative of the patient's body condition, a container having a memory device associated therewith, the memory device containing information relating to the contents of the container, means for connection to said container for delivery of fluid from said container to the patient, flow control means for controlling the flow of fluid drom said container to said patient, and means for reading the information stored in the memory device, whereby the flow control means can be operated in accordance with the read information and the signal derived from the monitoring means.
2. Apparatus as claimed in claim 1, further comprising means for storing information defining the flow rates required for various body conditions, the reading means being adapted further to read the information stored in the storage means and to actuate the flow control means in accordance with the information stored in the memory device and the storage means and the signal derived from the monitoring means.
3. Apparatus as claimed in claim 2, wherein the means for reading information and actuating the flow control means comprise a processing unit adapted to operate in accordance with a program stored in a memory thereof.
4. Apparatus as claimed in any one of the preceding claims, wherein the information stored in the memory device comprises data representing the nature of the fluid within the container and the optimum delivery rate for a given value of the body parameter.
5. Apparatus as claimed in any one of the preceding claims, wherein the information stored in the memory device comprises data forming a security code, whereby delivery of fluid is only allowed when the relevant body parameter is being monitored and has a value within a predetermined range.
6. Apparatus as claimed in any one of the preceding claims, wherein the information stored in the memory device comprises information regarding the amount of fluid remaining within the container, whereby a warning signal is given when the container approaches exhaustion of the contents thereof.
7. Apparatus for supplying a patient with a fluid, the apparatus being constructed, arranged and adapted to operate substantially as hereinbefore described with reference to, and as illustrated in, the accompanying drawings.
Description  (OCR text may contain errors)

FLUID DELIVERY APPARATUS

This invention relates to fluid delivery apparatus and in particular to apparatus for delivery of a fluid to a patient, eg. in the course of treatment. Examples of such fluids include blood, plasma, saline solutions, drug formulations, insulin, stimulants, and anaesthetics.

It is often desirable to control the flow of fluid to the patient in response to some parameter indicative of the patient's condition: examples of such parameters include respiration rate, pulse, blood pressure, brain activity, temperature, and the composition of a body fluid eg. exhaled breath, urine, or blood.

However, there is often a risk of error; for example supply of the wrong fluid to the patient and/or supply of the wrong quantity of fluid and/or supply at the wrong rate. This risk may be compounded by possible variation in the nature of the fluid eg. differing blood groups, drug formulations of differing concentrations and the like.

We have devised apparatus whereby such risks can be minimised.

Accordingly the present invention provides apparatus for supplying a patient with a fluid comprising means for monitoring a parameter indicative of the patient's body condition, a container having a memory device associated therewith, the memory device containing information relating to the contents of the container, means for connection to said container for delivery of fluid from said container to the patient, flow control means for controlling the flow of fluid from said container to said patient, and means for reading the information stored in the memory device, whereby the flow control means can be operated in accordance with the read information and the signal derived from the monitoring means. It is seen that an important feature of the invention is the provision of an information carrying memory device associated with, and preferably attached to, the container. This memory device is coded with information relating to the contents of the container. Such containers are described in our European Patent Application No. 83300035 (Publication No. 00086029), the disclosure of which is incorporated herein by reference. The memory device is preferably an active electronic memory device, preferably digital, eg. a micro-chip, such as a PROM.

The flow control means may be a simple on/off valve or may be a proportional valve whose setting is determined by the monitored parameter in conjunction with the information carried by the memory device. The flow control means may be incorporated in the container or, alternatively, may be incorporated in the means for connection to the container for delivering the fluid to the patient.

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:- Figure 1 is a diagrammatic representation of an apparatus according to the invention; and

Figure 2 is an axial section of a container fitted with a memory device and a connector to the fluid delivery means. In Figure 1 there is shown a container 1 having a memory device 2 associated therewith. The type of information that may be carried by the memory device 2 includes not only the precise nature of the fluid within the container 1, but also the optimum delivery rate for a given value of a relevant body parameter. Also a security code may be provided so that delivery of the fluid can only take place when the relevant body parameter is being monitored and has a value within a particular range. The memory device 2 may also carry information regarding the amount of fluid remaining within the container 1 so that a warning signal can be given when the container approaches exhaustion of its contents.

An outlet port 3 of container 1 is connected to a fluid flow control device 4 for delivering fluid to a patient (not shown) via a line 5. A monitor 6 is provided to monitor one or more relevant body parameters of the patient. The memory device 2 is read by a control unit 7 which also receives signals from the monitor 6. The unit 7 contains a processor which operates in accordance with a program stored therein. Associated with the processor is a store for information defining the flow rates of various fluids required by patients according to age and other factors and according to the existing value of the body parameter, as monitored by the monitor 6. In response to the information read from the memory device 2 indicating the precise nature of the fluid in container 1 and optimum delivery rates for any given value of a relevant monitored body parameter, the information stored in the processor of the unit 7, and the signals from monitor 6, the unit 7 supplies actuating signals to the fluid flow control device 4 to vary, as appropriate, the fluid delivered to the patient.

In Figure 2 the container 209 is shown inverted, having a cap 229 which is of a resilient plastic material which can sealingly grip the edge 223 of the container opening. The cap is fitted with an outlet port 234 and a vent inlet 235. Inside the supply outlet 234 is a shaped sealed ring 236, formed of rubber or like material. A sealing plate 237 is urged against sealing ring 236 by compression spring 239 the other end of which abuts a circumferential flange 240 within the upper end of outlet 234. Secured inside the vent inlet 235 and extending toward the upper end of the container 209 is an elongate duct 241, at the inner end of which is a springloaded ball valve 242, sealing the duct 241 against leakage of fluid from within container 209, but permitting air to enter container 209 when the pressure differential is sufficient to overcome the spring-loading of ball valve 242. The cap 229 also carries a memory device in the form of a pre-coded microcircuit chip 214 mounted to communicate via external conductive socket connections 243. The outer edge of cap 229 carries a thread 247, and for transport and storage carries a protective threaded cap lid (not shown). The container 209 is mounted on the system via the connector 230, shown immediately below it. This comprises a cover member 244 formed with a flanged edge 245 supporting a freely rotatable threaded collar 246 which can engage with thread 247 to hold cover member 244 and cap 229 tightly together. Cover member

244 is formed with a projecting supply pipe 248 to mate with outlet 234, a projecting vent pipe 249 to mate with vent outlet 235 and female electrical contacts 251 to mate with male sockets 243. Connections 215 from contacts 251 lead to the memory reading device. Pipe 248 projects to a height sufficient so that, when cap 229 and cover 244 are in close contact, sealing plate 237 is lifted off sealing ring 236 so the fluid can flow out around the edges of plate 237 (which for this purpose are preferably partly cut away) into pipe 248. It will be appreciated that the apparatus described with reference to Figure 1 can be modified by removing the store associated with the processor unit 7 and the connection between the unit 7 and the fluid control device 4. In this event, the unit 7 is provided with a display for information regarding the amount of fluid remaining in the container 1, derived from the memory device 2, and for the value of the body parameter, derived from the monitor 6. A doctor or nurse then manually adjusts the flow control device 6 in accordance with known information relating to the flow rate required and the patient's body condition.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
WO1982003554A1 *9 Apr 198228 Oct 1982Dean L KamenFluid flow control system
BE832256A * Title not available
EP0058472A1 *21 Jan 198225 Aug 1982Imperial Chemical Industries PlcAgricultural spraying apparatus and containers for use therewith
EP0086029A1 *5 Jan 198317 Aug 1983Imperial Chemical Industries PlcFluid container
FR2350107A1 * Title not available
US3390238 *13 May 196625 Jun 1968Clyde W. O'neillIntravenous fluid level signalling apparatus
US4078562 *16 Aug 197614 Mar 1978Diana W. FriedmanInfusion pump with feedback control
US4291692 *9 Oct 197929 Sep 1981University Of UtahClosed-loop infusion system, both method and apparatus, based on real time urine measurement
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
WO2002081919A1 *4 Apr 200217 Oct 2002Precimedix S.A.Programmable cassette pump for injecting medicaments
EP0337924A2 *28 Feb 198918 Oct 1989Mic Medical Instrument CorporationDevice for the biofeedback control of body parameters
EP0337924A3 *28 Feb 19899 May 1990Mic Medical Instrument CorporationDevice for the biofeedback control of body parameters
EP0692766A1 *12 Jul 199517 Jan 1996Medrad, Inc.Closed loop information path for medical fluid delivery systems
EP1249606A1 *10 Apr 200116 Oct 2002Precimedix S.A.Medical infusion pump with programmable pump fluid cassette
US5002055 *30 Sep 198826 Mar 1991Mic Medical Instruments CorporationApparatus for the biofeedback control of body functions
US5739508 *11 Oct 199614 Apr 1998Medrad, Inc.Closed loop information path for medical fluid delivery systems
US5806519 *22 Sep 199515 Sep 1998Medrad, Inc.Total system for contrast delivery
US5840026 *21 Sep 199424 Nov 1998Medrad, Inc.Patient specific dosing contrast delivery systems and methods
US5843037 *21 Oct 19961 Dec 1998Medrad Inc.Multipatient fluid dispensing
US5920054 *3 Oct 19976 Jul 1999Medrad, Inc.Closed loop information path for medical fluid delivery systems
US5997502 *28 Jul 19977 Dec 1999Medrad, Inc.Front loading medical injector and syringe for use therewith
US6090064 *16 Nov 199818 Jul 2000Medrad, Inc.Front loading medical injector and syringe for use therewith
US6149627 *23 Jun 199821 Nov 2000Medrad, Inc.Multi-patient fluid dispensing
US6973435 *13 Jul 19996 Dec 2005Sioufi Habib AMethod and system for ordering services or products, including prescriptions
US819743727 Mar 200712 Jun 2012Medrad, Inc.Systems and methods of modeling pharmaceutical propagation in a patient
US829591416 Nov 200523 Oct 2012Medrad, Inc.Systems and methods of determining patient transfer functions and modeling patient response to a pharmaceutical injection
US831544924 Jun 200820 Nov 2012Medrad, Inc.Identification of regions of interest and extraction of time value curves in imaging procedures
US83463427 Jul 20111 Jan 2013Medrad, Inc.Systems and methods of determining patient physiological parameters from an imaging procedure
US842869424 Jun 200823 Apr 2013Medrad, Inc.Methods for determination of parameters for a procedure, for estimation of cardiopulmonary function and for fluid delivery
US857420012 Mar 20125 Nov 2013Medrad, Inc.Dual syringe injector system
US86084844 Mar 200917 Dec 2013Medrad, Inc.Dynamic anthropomorphic cardiovascular phantom
US869977019 Oct 201215 Apr 2014Bayer Medical Care Inc.Identification of regions of interest and extraction of time value curves in imaging procedures
US90087596 Mar 201314 Apr 2015Bayer Medical Care Inc.Devices and systems for determination of parameters for a procedure, for estimation of cardiopulmonary function and for fluid delivery
US91080473 Jun 201118 Aug 2015Bayer Medical Care Inc.System and method for planning and monitoring multi-dose radiopharmaceutical usage on radiopharmaceutical injectors
US923809927 Mar 200719 Jan 2016Bayer Healthcare LlcSystem and apparatus for modeling pressures generated during an injection procedure
US930204421 Dec 20075 Apr 2016Bayer Healthcare LlcPatient-based parameter generation systems for medical injection procedures
US94213303 Nov 200923 Aug 2016Bayer Healthcare LlcMitigation of contrast-induced nephropathy
US946333514 Aug 201511 Oct 2016Bayer Healthcare LlcSystem and method for planning and monitoring multi-dose radiopharmaceutical usage on radiopharmaceutical injectors
US948079728 Oct 20151 Nov 2016Bayer Healthcare LlcSystem and method for syringe plunger engagement with an injector
US961616618 Oct 201211 Apr 2017Bayer Healthcare LlcSystems and methods of determining injection protocols for diagnostic imaging procedures
US96364527 May 20142 May 2017Bayer Healthcare LlcFront-loading medical injector adapted to releasably engage a syringe regardless of the orientation of the syringe with respect to the injector
US970067220 Sep 201211 Jul 2017Bayer Healthcare LlcContinuous multi-fluid pump device, drive and actuating system and method
US97443052 Nov 201529 Aug 2017Bayer Healthcare LlcQuick release plunger
Classifications
International ClassificationA61M5/172, A61M5/168
Cooperative ClassificationA61M5/1723, A61M5/14, A61M5/1684
European ClassificationA61M5/168D3, A61M5/172B
Legal Events
DateCodeEventDescription
31 Jan 1985AKDesignated states
Designated state(s): AU JP
31 Jan 1985ALDesignated countries for regional patents
Designated state(s): AT BE CH DE FR GB NL SE
25 Feb 1985WWEWipo information: entry into national phase
Ref document number: 1984902722
Country of ref document: EP
31 Jul 1985WWPWipo information: published in national office
Ref document number: 1984902722
Country of ref document: EP
7 Aug 1987WWWWipo information: withdrawn in national office
Ref document number: 1984902722
Country of ref document: EP