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NZ772272B2 - Apparatus for controlling fluid flow - Google Patents
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NZ772272B2 - Apparatus for controlling fluid flow - Google Patents

Apparatus for controlling fluid flow

Info

Publication number
NZ772272B2
NZ772272B2 NZ772272A NZ77227212A NZ772272B2 NZ 772272 B2 NZ772272 B2 NZ 772272B2 NZ 772272 A NZ772272 A NZ 772272A NZ 77227212 A NZ77227212 A NZ 77227212A NZ 772272 B2 NZ772272 B2 NZ 772272B2
Authority
NZ
New Zealand
Prior art keywords
image
pixels
thresholded
row
length
Prior art date
Application number
NZ772272A
Other versions
NZ772272A (en
Inventor
Jr Robert J Bryant
Kaitlyn S Clarke
Matthew J Johnson
Dean Kamen
Derek G Kane
John M Kerwin
Christopher C Langenfeld
Richard J Lanigan
Colin H Murphy
Bob D Peret
Original Assignee
Deka Products Limited Partnership
Filing date
Publication date
Priority claimed from PCT/US2011/066588 external-priority patent/WO2013095459A1/en
Priority claimed from US13/333,574 external-priority patent/US10453157B2/en
Application filed by Deka Products Limited Partnership filed Critical Deka Products Limited Partnership
Priority to NZ789568A priority Critical patent/NZ789568B2/en
Publication of NZ772272A publication Critical patent/NZ772272A/en
Publication of NZ772272B2 publication Critical patent/NZ772272B2/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J3/00—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms
    • A61J3/002—Compounding apparatus specially for enteral or parenteral nutritive solutions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/12—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit
    • A61M2205/123—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit with incorporated reservoirs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/18—General characteristics of the apparatus with alarm
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3306—Optical measuring means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A61M2205/3334—Measuring or controlling the flow rate
    • A—HUMAN NECESSITIES
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    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3375—Acoustical, e.g. ultrasonic, measuring means
    • A—HUMAN NECESSITIES
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
    • A—HUMAN NECESSITIES
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    • A61M2205/3584—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver using modem, internet or Bluetooth®
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    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6009—General characteristics of the apparatus with identification means for matching patient with his treatment, e.g. to improve transfusion security
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    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
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    • A61M5/1407—Infusion of two or more substances
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    • A61M5/1411—Drip chambers
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    • A61M5/1413—Modular systems comprising interconnecting elements
    • A—HUMAN NECESSITIES
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    • A61M5/1414—Hanging-up devices
    • A61M5/1415—Stands, brackets or the like for supporting infusion accessories
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/1414—Hanging-up devices
    • A61M5/1417—Holders or handles for hanging up infusion containers
    • A—HUMAN NECESSITIES
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    • A61M5/14212—Pumping with an aspiration and an expulsion action
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    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/14212—Pumping with an aspiration and an expulsion action
    • A61M5/14228—Pumping with an aspiration and an expulsion action with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
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    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
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    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/04—Force
    • F04C2270/041—Controlled or regulated
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/02—Compensating or correcting for variations in pressure, density or temperature
    • G01F15/028—Compensating or correcting for variations in pressure, density or temperature for low flow rates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • G06Q50/22—Social work or social welfare, e.g. community support activities or counselling services
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H10/00—ICT specially adapted for the handling or processing of patient-related medical or healthcare data
    • G16H10/60—ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H10/00—ICT specially adapted for the handling or processing of patient-related medical or healthcare data
    • G16H10/60—ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records
    • G16H10/65—ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records stored on portable record carriers, e.g. on smartcards, RFID tags or CD
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/10—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/10—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients
    • G16H20/13—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients delivered from dispensers
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/10—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients
    • G16H20/17—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients delivered via infusion or injection
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/40—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
    • G16H40/67—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation

Abstract

apparatus, comprising: a coupler adapted to couple to a drip chamber; a support member operatively coupled to the coupler; and an image sensor having a field of view and operatively coupled to the support member, wherein the image sensor is configured to view the drip chamber within the field of view; at least one processor operatively coupled to the image sensor to receive image data therefrom, wherein the at least one processor is configured to: capture a first image; create a first thresholded image from the first image by comparing each pixel of the first image to a threshold value; determine a set of pixels within the first thresholded image connected to a predetermined set of pixels within the first thresholded image; filter all remaining pixels of the first thresholded image that are not with the set of pixels, the filter operates on a pixel-by-pixel basis within the time domain to generate a first filtered image; remove pixels determined to not be part of a drop from the first thresholded image using the first filtered image to generate a second image; determine a second set of pixels within the second image connected to a predetermined set of pixels within the second image to generate a third image, the third image identifies the second set of pixels within the second image; determine a first length of the drop by counting the number of rows containing pixels corresponding to the second set of pixels within the third image, the first length corresponding to a first estimated drop size; update a background image using the first image; create a second thresholded image by comparing first image with background image; sum the rows of second thresholded to create a plurality of row sums, each row sum corresponds to a row of the second thresholded image; start at a row position of the second thresholded image having a first sum of the plurality of sums that corresponds to the first length; increment the row position until the row position corresponds to a corresponding row sum that is zero; determine a second length is equal to the present row position, the second length corresponding to a second estimated drop size; and average the first and second lengths to determine a average length, the average length corresponding to a third estimated drop size.

Claims (4)

What is claimed is:
1. An apparatus, comprising: a coupler adapted to couple to a drip r; a support member operatively coupled to the coupler; and an image sensor having a field of view and operatively coupled to the support member, wherein the image sensor is configured to view the drip chamber within the field of view; at least one processor operatively coupled to the image sensor to receive image data rom, wherein the at least one processor is configured to: capture a first image; create a first thresholded image from the first image by comparing each pixel of the first image to a threshold value; determine a set of pixels within the first thresholded image connected to a predetermined set of pixels within the first thresholded image; filter all remaining pixels of the first thresholded image that are not with the set of pixels, the filter operates on a pixel-by-pixel basis within the time domain to generate a first filtered image; remove pixels determined to not be part of a drop from the first thresholded image using the first filtered image to generate a second image; determine a second set of pixels within the second image connected to a ermined set of pixels within the second image to generate a third image, the third image identifies the second set of pixels within the second image; determine a first length of the drop by counting the number of rows ning pixels corresponding to the second set of pixels within the third image, the first length corresponding to a first estimated drop size; update a background image using the first image; create a second thresholded image by ing first image with background image; sum the rows of second olded to create a plurality of row sums, each row sum corresponds to a row of the second thresholded image; start at a row position of the second thresholded image having a first sum of the plurality of sums that ponds to the first length; increment the row position until the row position corresponds to a corresponding row sum that is zero; determine a second length is equal to the present row position, the second length corresponding to a second estimated drop size; and average the first and second s to determine a average length, the average length corresponding to a third estimated drop size.
2. A method implemented by at least one processor executing an operative set of processor executable instructions configured for being executed by the at least one processor for estimating a flow rate, the method comprising: capturing a first image; creating a first thresholded image from the first image by comparing each pixel of the first image to a threshold value; determining a set of pixels within the first thresholded image connected to a predetermined set of pixels within the first thresholded image; filtering all remaining pixels of the first thresholded image that are not with the set of pixels, the filter operates on a pixel-by-pixel basis within the time domain to te a first filtered image; removing pixels determined to not be part of a drop from the first thresholded image using the first filtered image to generate a second image; determining a second set of pixels within the second image connected to a predetermined set of pixels within the second image to generate a third image, the third image identifies the second set of pixels within the second image; determining a first length of the drop by counting the number of rows containing pixels corresponding to the second set of pixels within the third image, the first length corresponding to a first estimated drop size; ng a background image using the first image; creating a second thresholded image by comparing first image with background image; g the rows of second thresholded to create a plurality of row sums, each row sum corresponds to a row of the second thresholded image; starting at a row position of the second olded image having a first sum of the plurality of sums that corresponds to the first ; enting the row position until the row on corresponds to a corresponding row sum that is zero; determining a second length is equal to the present row position, the second length corresponding to a second estimated drop size; and averaging the first and second lengths to determine a average length, the average length corresponding to a third estimated drop size.
3. An apparatus ing to claim 1, substantially as herein described or exemplified.
4. A method according to claim 2, substantially as herein described or exemplified. DEKA PRODUCTS LIMITED RSHIP By Their Attorneys HENRY HUGHES IP
NZ772272A 2012-12-21 Apparatus for controlling fluid flow NZ772272B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NZ789568A NZ789568B2 (en) 2012-12-21 Apparatus for controlling fluid flow

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US201161578674P 2011-12-21 2011-12-21
US201161578658P 2011-12-21 2011-12-21
US201161578649P 2011-12-21 2011-12-21
PCT/US2011/066588 WO2013095459A1 (en) 2011-12-21 2011-12-21 System, method, and apparatus for electronic patient care
US13/333,574 US10453157B2 (en) 2010-01-22 2011-12-21 System, method, and apparatus for electronic patient care
US201261651322P 2012-05-24 2012-05-24
US201261679117P 2012-08-03 2012-08-03
NZ757800A NZ757800B2 (en) 2011-12-21 2012-12-21 Apparatus for controlling fluid flow

Publications (2)

Publication Number Publication Date
NZ772272A NZ772272A (en) 2022-07-29
NZ772272B2 true NZ772272B2 (en) 2022-11-01

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