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FR2400369A1 - PERFECTED PROCESS FOR THE PRACTICE OF VENOUS CATHETERISMS - Google Patents

PERFECTED PROCESS FOR THE PRACTICE OF VENOUS CATHETERISMS

Info

Publication number
FR2400369A1
FR2400369A1 FR7704253A FR7704253A FR2400369A1 FR 2400369 A1 FR2400369 A1 FR 2400369A1 FR 7704253 A FR7704253 A FR 7704253A FR 7704253 A FR7704253 A FR 7704253A FR 2400369 A1 FR2400369 A1 FR 2400369A1
Authority
FR
France
Prior art keywords
practice
venous
catheterisms
catheterizations
mesophase
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7704253A
Other languages
French (fr)
Other versions
FR2400369B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIQUID CRYSTAL PROD Inc
Liquid Crystal Products Inc
Original Assignee
LIQUID CRYSTAL PROD Inc
Liquid Crystal Products Inc
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
Priority claimed from US05/658,407 external-priority patent/US4015591A/en
Application filed by LIQUID CRYSTAL PROD Inc, Liquid Crystal Products Inc filed Critical LIQUID CRYSTAL PROD Inc
Publication of FR2400369A1 publication Critical patent/FR2400369A1/en
Application granted granted Critical
Publication of FR2400369B1 publication Critical patent/FR2400369B1/fr
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4887—Locating particular structures in or on the body
    • A61B5/489—Blood vessels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
    • A61B5/015—By temperature mapping of body part
    • 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
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • 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
    • A61M5/42—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 having means for desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced
    • A61M5/427—Locating point where body is to be pierced, e.g. vein location means using ultrasonic waves, injection site templates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/60—Pleochroic dyes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
    • G01K11/16—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials
    • G01K11/165—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials of organic liquid crystals

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Public Health (AREA)
  • Vascular Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • General Physics & Mathematics (AREA)
  • Dermatology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Preparation (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Paints Or Removers (AREA)
  • Materials For Medical Uses (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

Procédé et composition facilitant la pratique des cathétérismes. On applique sur la peau refroidie, au-dessus d'une région veineuse, une couche d'une substance cholestérique énantiotrope en phase cristalline liquide présentant une variation de couleur due au passage en mésophase, à une température appropriée, on laisse la peau se réchauffer sous l'action de la circulation veineuse, ce qui fait apparaître la variation de couleur due au passage en mésophase, délimitant nettement les contours de la veine . Le procédé selon l'invention permet la pratique des cathétérismes par des opérateurs peu expérimentés.Method and composition for facilitating the practice of catheterizations. A layer of an enantiotropic cholesteric substance in the liquid crystalline phase showing a change in color due to the passage into the mesophase is applied to the cooled skin, above a venous region, at an appropriate temperature, the skin is allowed to warm up under the action of the venous circulation, which reveals the variation in color due to the passage in mesophase, clearly delimiting the contours of the vein. The method according to the invention allows the practice of catheterizations by operators with little experience.

FR7704253A 1976-02-17 1977-02-15 PERFECTED PROCESS FOR THE PRACTICE OF VENOUS CATHETERISMS Granted FR2400369A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/658,407 US4015591A (en) 1976-02-17 1976-02-17 Cholesteric liquid crystalline phase material-dye composition and venapuncture method employing the composition
US71637676A 1976-08-23 1976-08-23

Publications (2)

Publication Number Publication Date
FR2400369A1 true FR2400369A1 (en) 1979-03-16
FR2400369B1 FR2400369B1 (en) 1983-12-09

Family

ID=27097619

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7704253A Granted FR2400369A1 (en) 1976-02-17 1977-02-15 PERFECTED PROCESS FOR THE PRACTICE OF VENOUS CATHETERISMS

Country Status (4)

Country Link
JP (1) JPS52100787A (en)
CA (1) CA1105793A (en)
DE (1) DE2706272A1 (en)
FR (1) FR2400369A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9203502U1 (en) * 1992-03-16 1992-07-09 Stein, Erich, 5900 Siegen Device for fixing and holding blood vessels-veins on the human body
DE102007025132B4 (en) * 2007-05-30 2014-09-11 Rolf Elliger vein Finder

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU469146A (en) * 1946-06-28 1946-11-28 Lewis Andrew Darling Improvements in fluid turbine
US3441513A (en) * 1966-08-05 1969-04-29 Boeing Co Liquid crystal compositions
US3533399A (en) * 1965-08-02 1970-10-13 Westinghouse Electric Corp Temperature sensing means and methods
US3847139A (en) * 1973-04-13 1974-11-12 E Flam Device for aid in detecting breast cancer
US3998210A (en) * 1974-07-30 1976-12-21 Gate Industries, Inc. Method of locating vein

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3585381A (en) * 1969-04-14 1971-06-15 Ncr Co Encapsulated cholesteric liquid crystal display device
DE2411767C2 (en) * 1974-03-12 1983-10-27 Agfa-Gevaert Ag, 5090 Leverkusen Method for measuring a two-dimensional temperature distribution

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU469146A (en) * 1946-06-28 1946-11-28 Lewis Andrew Darling Improvements in fluid turbine
US3533399A (en) * 1965-08-02 1970-10-13 Westinghouse Electric Corp Temperature sensing means and methods
US3441513A (en) * 1966-08-05 1969-04-29 Boeing Co Liquid crystal compositions
US3847139A (en) * 1973-04-13 1974-11-12 E Flam Device for aid in detecting breast cancer
US3998210A (en) * 1974-07-30 1976-12-21 Gate Industries, Inc. Method of locating vein

Also Published As

Publication number Publication date
FR2400369B1 (en) 1983-12-09
JPS52100787A (en) 1977-08-24
CA1105793A (en) 1981-07-28
DE2706272A1 (en) 1977-08-18

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Legal Events

Date Code Title Description
ST Notification of lapse