IE79030B1 - Drop detection method and apparatus - Google Patents

Drop detection method and apparatus

Info

Publication number
IE79030B1
IE79030B1 IE921024A IE921024A IE79030B1 IE 79030 B1 IE79030 B1 IE 79030B1 IE 921024 A IE921024 A IE 921024A IE 921024 A IE921024 A IE 921024A IE 79030 B1 IE79030 B1 IE 79030B1
Authority
IE
Ireland
Prior art keywords
drop
light
detector
chamber
focal point
Prior art date
Application number
IE921024A
Other languages
English (en)
Other versions
IE921024A1 (en
Inventor
Denis Y Yerlikaya
Randall Jeffrey Krohn
Clarence Logan Walker
Michael J Wilhelm
Curtis Durell Kinghorn
Original Assignee
Sherwood Medical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sherwood Medical Co filed Critical Sherwood Medical Co
Publication of IE921024A1 publication Critical patent/IE921024A1/en
Publication of IE79030B1 publication Critical patent/IE79030B1/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/10—Mirrors with curved faces
    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • 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
    • A61M5/16886—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 for measuring fluid flow rate, i.e. flowmeters
    • A61M5/1689—Drip counters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
    • G01V8/14—Detecting, e.g. by using light barriers using one transmitter and one receiver using reflectors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/13—Infusion monitoring

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Anesthesiology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Geophysics (AREA)
  • Optics & Photonics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
IE921024A 1991-04-01 1992-03-31 Drop detection method and apparatus IE79030B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/678,639 US5256155A (en) 1991-04-01 1991-04-01 Drop detection method and apparatus

Publications (2)

Publication Number Publication Date
IE921024A1 IE921024A1 (en) 1992-10-07
IE79030B1 true IE79030B1 (en) 1998-04-08

Family

ID=24723654

Family Applications (1)

Application Number Title Priority Date Filing Date
IE921024A IE79030B1 (en) 1991-04-01 1992-03-31 Drop detection method and apparatus

Country Status (10)

Country Link
US (2) US5256155A (enExample)
EP (3) EP0770403B1 (enExample)
AU (2) AU668089B2 (enExample)
CA (1) CA2102424C (enExample)
DE (3) DE69221135T2 (enExample)
IE (1) IE79030B1 (enExample)
IL (1) IL101413A (enExample)
MX (1) MX9201484A (enExample)
TW (1) TW207955B (enExample)
WO (1) WO1992017227A2 (enExample)

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Also Published As

Publication number Publication date
US5346466A (en) 1994-09-13
IL101413A (en) 1995-05-26
IL101413A0 (en) 1992-11-15
US5256155A (en) 1993-10-26
EP0770403B1 (en) 2001-06-06
EP0768092A3 (en) 1997-12-03
AU5618196A (en) 1996-08-29
TW207955B (enExample) 1993-06-21
MX9201484A (es) 1993-02-01
EP0770403A3 (en) 1997-12-03
EP0768092B1 (en) 2002-07-03
DE69221135T2 (de) 1997-11-27
DE69232670T2 (de) 2003-02-27
WO1992017227A2 (en) 1992-10-15
IE921024A1 (en) 1992-10-07
DE69231867T2 (de) 2002-04-18
EP0768092A2 (en) 1997-04-16
EP0578764A1 (en) 1994-01-19
AU668089B2 (en) 1996-04-26
AU1767792A (en) 1992-11-02
DE69231867D1 (de) 2001-07-12
DE69221135D1 (de) 1997-09-04
DE69232670D1 (de) 2002-08-08
EP0578764B1 (en) 1997-07-23
WO1992017227A3 (en) 1992-11-12
CA2102424C (en) 2003-05-20
CA2102424A1 (en) 1992-10-02
EP0770403A2 (en) 1997-05-02

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