NO140653B - Apparat for evakuering av et proeveroer - Google Patents

Apparat for evakuering av et proeveroer Download PDF

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Publication number
NO140653B
NO140653B NO762963A NO762963A NO140653B NO 140653 B NO140653 B NO 140653B NO 762963 A NO762963 A NO 762963A NO 762963 A NO762963 A NO 762963A NO 140653 B NO140653 B NO 140653B
Authority
NO
Norway
Prior art keywords
slide
stopper
steel
test tube
piston
Prior art date
Application number
NO762963A
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English (en)
Other versions
NO140653C (no
NO762963L (no
Inventor
Jan Axel Svensson
Original Assignee
Jan Axel Svensson
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 Jan Axel Svensson filed Critical Jan Axel Svensson
Publication of NO762963L publication Critical patent/NO762963L/no
Publication of NO140653B publication Critical patent/NO140653B/no
Publication of NO140653C publication Critical patent/NO140653C/no

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/153Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/15003Source of blood for venous or arterial blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150053Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
    • A61B5/150061Means for enhancing collection
    • A61B5/150099Means for enhancing collection by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150213Venting means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150221Valves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150236Pistons, i.e. cylindrical bodies that sit inside the syringe barrel, typically with an air tight seal, and slide in the barrel to create a vacuum or to expel blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150244Rods for actuating or driving the piston, i.e. the cylindrical body that sits inside the syringe barrel, typically with an air tight seal, and slides in the barrel to create a vacuum or to expel blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150351Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150389Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150473Double-ended needles, e.g. used with pre-evacuated sampling tubes
    • A61B5/150496Details of construction of hub, i.e. element used to attach the double-ended needle to a piercing device or sampling device
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150732Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150763Details with identification means
    • A61B5/150778Details with identification means having complementary physical shapes for indexing or registration purposes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/153Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/154Devices using pre-evacuated means
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00Chemistry: analytical and immunological testing
    • Y10T436/25Chemistry: analytical and immunological testing including sample preparation
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00Chemistry: analytical and immunological testing
    • Y10T436/25Chemistry: analytical and immunological testing including sample preparation
    • Y10T436/2575Volumetric liquid transfer

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Hematology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Dermatology (AREA)
  • Pain & Pain Management (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Paper (AREA)
  • Vending Machines For Individual Products (AREA)

Description

Stål med høy utmattingsmotstand.
Foreliggende oppfinnelse angår stål med høy utmattingsmotstand.
Oppfinnelsen angår tilsetning av en
liten mengde uran til vanlig karbonstål og ferritiske legeringsstål, idet det har vist seg at en sådan tilsetning gir stålet forbedret utmattingsmotstand, større motstand mot belastningskorrosjon og bedre krypbrudd-egenskaper ved høye temperaturer.
Det er tidligere kjent å tilsette uran i
andre ståltyper, men av en eller annen grunn har det ikke vært foreslått å bruke uran i stål av den type som oppfinnelsen angår, idet fordelene ved dette åpenbart ikke har vært innsett.
Det er således tidligere kjent å tilsette uran til stållegeringer inneholdende bestemte mengder silicium, mangan, og vanadium, til nikkelstål, til hurtigstål og til støpejern.
De ved foreliggende oppfinnelse an-vendte stål, som vanlig kalles karbonstål og ferritiske legeringer, har følgende kjen-te sammensetning:
Vanadium opp til 1 % hvis krom er tilstede, intet hvis krom
ikke er tilstede,
idet dette stål ifølge oppfinnelsen også inneholder 0,01—1,0 % uran.
Problemer vedrørende forbedring av utmattingsmotstand eller varighetsgrensen hos stål er selvsagt velkjent innen stålin-dustrien. Forsøk på å oppnå tilfredsstillen-de utmattingsmotstand kan følge forskjellige retningslinjer som f. eks. (1) økning av stålets strekkstyrke, (2) tilsetning av et legeringselement som f. eks. vanadium ved fremstillingen av stålet, (3) mindre over-flate-ujevnheter i den bestemte del som er fremstilt av stål, (4) valg av mere tilfreds-stillende utførelse og belastnings-karak-teristika av vedkommende del, (5) kontroll av vedkommende dels omgivelser og (6) pennhamring. Sådanne fremgangsmåter er enten ganske kostbare eller omfattende. Det er dessuten nødvendig at materialene utvelges med omhu da den nedsettelse i ut-mattingsmotstanden som forårsakes av hakk, sprekker og lignende samt uheldig utførelse, øker med strekkstyrken.
Likeledes har problemer i forbindelse med fremskaffelse av et stål med vesentlig forbedret motstand i korroderende mil-jø under samtidig belastning, dvs. belastningskorrosjon, blitt viet meget oppmerk-somhet. Løsningen av slike problemer kan også følge forskjellige linjer innbefattende (1) kontroll av miljøet ved hjelp av tilset-ningsmidler eller inhibitorer, (2) bruk av rustfritt stål for spesielle miljøer, (3) plet-tering med beskyttende overtrekk, (4) for-holdsregler ved fabrikasjonen og/eller var-mebehandlingen med sikte på å redusere de indre spenninger. Disse fremgangsmåter er kostbare og krever en kontroll som ofte er omfattende. Et omsorgsfullt valg av ma-terialer er også en nødvendighet da intet materiale gir universalmotstand overfor ovennevnte angrepstyper.
Det er nå blitt funnet at tilsetning av relativt små mengder uran til stål av typen billig karbonstål og férritisk lavlegert stål gir et stål med vesentlig forbedret forhold mellom varighetsgrensen og strekkstyrken, og adekvat motstand overfor belastnings-korroderende angrep i flere forskjellige omgivelser.
Oppfinnelsen angår stål av- høy utmattingsmotstand;. gode egenskaper med hensyn til krypebrudd ved høy temperatur og motstandsdyktighet mot belastningskorrosjon inneholdende 0,05—1% karbon,
3,10—1,5 % mangan, fra spor opp til 1,5 % silicium, fra spor opp til 0,2% svovel, 3—2 % molybden, fra spor opp til 0,1 % fosfor, 0—7 % krom, opp til 1 % vanadium hvis krom forefinnes og intet vanadium hvis krom ikke er tilstede, og stålet karak-teriseres ved at det også- inneholder 0,01— 1:% uran.
Mengden av urantilsetningen kan være innenfor området 0,01% til 1,0%, for-trinnsvis under 0,25 % og helst mellom 0,01 og 0,03 %.
I det følgende er der gj.engitt de resul-tater som erholdes ved sammenlignende forsøk under anvendelse av stålprøver med den. angitte sammensetning:
Resultatene av utmattingsprøvene er gitt nedenfor:
Det vil sees at tilsetningen av uran i
så små mengder resulterer i en markert økning i varighetsgrensen og en betydelig økning i forholdet mellom varighetsgrensen og strekkstyrken.
I det følgende gjengis resultatene av forsøkene vedrørende krypebrudd ved høy temperatur:
1. Stål med høy utmattingsmotstand, gode egenskaper med hensyn til krypebrudd ved høy temperatur og motstandsdyktighet mot belastningskorrosjon, inneholdende 0,05—1% karbon, 0,10—1,5% mangan, fra spor opp til 1,5 % silicium, fra spor opp til 0,2 % svovel, 0—2 % molybden, fra spor opp til 0,1 % fosfor, 0—7 % krom, opp til 1 % vanadium hvis krom forefinnes og intet vanadium hvis krom ikke er til stede, karakterisert ved at det også inneholder 0,01—1,0 % uran. 2. Stål ifølge påstand 1, karakterisert ved at innholdet av uran er 0,01— 0,25 %. 3. Stål ifølge påstand 1, karakterisert ved at uraninnholdet er 0,01— 0,03 %.

Claims (3)

1. Apparat for evakuering av prøverør (13; 62), som er blitt tillukket ved hovedsakelig atmosfærisk trykk ved hjelp av en elastisk propp (14; 64; 84; 85; 89), og oppsamling av medium-prøve i disse, karakterisert ved en for frem-og tilbakegående bevegelse forskyvbart styrt sleide (18; 38), mot hvilken det ved hjelp av proppen tillukkede prøverør kan presses, en på sleiden anordnet mot proppen bevegelig første kanyle (20; 42) for gjennomtrengning av proppen og opprettelse av forbindelse med beholderens indre ved pressing av prøverøret med proppen mot sleiden og forskyvning av denne i en retning, en vakuumpumpe (10; 33) med sylinder (15; 33a) og et i denne frem og tilbake forskyvbart stempel (16; 34), en ledningsfor-bindelse (21; 45, 46) mellom den første kanyle og vakuumpumpen, idet stempelet er operativt forbundet med sleiden for å forskyves ved dennes bevegelse under tilveiebringelse av undertrykk i prøverøret ved sliedens forskyvning i den nevnte retning, samt en andre kanyle (11; 31b) for gjennomtrengning av proppen og tilveiebringelse av strømningsforbindelse mellom beholderens indre og et forråd av medium, hvorifra prøve skal tas, i slutten av sleidens bevegelse i den nevnte ene retning.
2. Apparat som angitt i krav 1, karakterisert ved at sleiden (38) har en fatning (60) for sammenkobling av sleiden og prøverøret (62).
3. Apparat som angitt i krav 1 eller 2, karakterisert ved at den første kanyle (42) er svingbart montert på en med stempelet (34) forbundet stempelstang (36) og er anordnet for å svinges mot og bort fra proppen (64; 84; 85; 89) i det mot sleiden (38) pressede prøverør ved hjelp av en kam (57), som er forskyvbart styrt i to innvendige spor (50, 51) i en holder (30) for den første kanyle og vakuumpumpen (33).
NO762963A 1975-08-28 1976-08-27 Apparat for evakuering av et proeveroer NO140653C (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60880975A 1975-08-28 1975-08-28
US05/717,814 US4063460A (en) 1975-08-28 1976-08-26 Method for evacuating and then collecting medium samples in containers sealed by a resilient stopper at substantially atmospheric pressure

Publications (3)

Publication Number Publication Date
NO762963L NO762963L (no) 1977-03-01
NO140653B true NO140653B (no) 1979-07-09
NO140653C NO140653C (no) 1979-10-17

Family

ID=46690787

Family Applications (1)

Application Number Title Priority Date Filing Date
NO762963A NO140653C (no) 1975-08-28 1976-08-27 Apparat for evakuering av et proeveroer

Country Status (17)

Country Link
US (2) US4063460A (no)
JP (1) JPS5238993A (no)
AU (1) AU506835B2 (no)
BE (1) BE845570A (no)
CA (1) CA1098000A (no)
CH (1) CH601786A5 (no)
DE (1) DE2638102A1 (no)
DK (1) DK145963C (no)
FR (1) FR2322371A1 (no)
GB (1) GB1564009A (no)
IE (1) IE43530B1 (no)
IT (1) IT1065821B (no)
LU (1) LU75676A1 (no)
NL (1) NL7609551A (no)
NO (1) NO140653C (no)
SE (1) SE412841B (no)
SU (1) SU638242A3 (no)

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DE2638102A1 (de) 1977-03-10
DK145963C (da) 1983-10-03
LU75676A1 (no) 1977-07-14
NO140653C (no) 1979-10-17
NL7609551A (nl) 1977-03-02
BE845570A (fr) 1977-02-28
DK389576A (da) 1977-03-01
IT1065821B (it) 1985-03-04
IE43530B1 (en) 1981-03-25
SE412841B (sv) 1980-03-24
US4063460A (en) 1977-12-20
CH601786A5 (no) 1978-07-14
AU1727176A (en) 1978-03-09
US4134300A (en) 1979-01-16
FR2322371A1 (fr) 1977-03-25
DK145963B (da) 1983-05-02
GB1564009A (en) 1980-04-02
IE43530L (en) 1977-02-28
FR2322371B1 (no) 1982-10-15
NO762963L (no) 1977-03-01
SU638242A3 (ru) 1978-12-15
AU506835B2 (en) 1980-01-24
SE7609447L (sv) 1977-03-01
CA1098000A (en) 1981-03-24
JPS5238993A (en) 1977-03-25

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