NO801135L - Blood lancets. - Google Patents

Blood lancets.

Info

Publication number
NO801135L
NO801135L NO801135A NO801135A NO801135L NO 801135 L NO801135 L NO 801135L NO 801135 A NO801135 A NO 801135A NO 801135 A NO801135 A NO 801135A NO 801135 L NO801135 L NO 801135L
Authority
NO
Norway
Prior art keywords
blood
blood lancet
plastic
lancet according
plastic body
Prior art date
Application number
NO801135A
Other languages
Norwegian (no)
Inventor
Karl-Heinz Griesel
Original Assignee
Intermedicat Gmbh
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 Intermedicat Gmbh filed Critical Intermedicat Gmbh
Publication of NO801135L publication Critical patent/NO801135L/en

Links

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
    • A61B5/151Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15142Devices intended for single use, i.e. disposable
    • 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
    • A61B5/150022Source of blood for capillary blood or interstitial fluid
    • 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
    • A61B5/150412Pointed piercing elements, e.g. needles, lancets for piercing the skin
    • A61B5/150427Specific tip design, e.g. for improved penetration characteristics
    • 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
    • A61B5/151Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101Details
    • A61B5/15103Piercing procedure
    • A61B5/15105Purely manual piercing, i.e. the user pierces the skin without the assistance of any driving means or driving devices
    • 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
    • A61B5/150274Manufacture or production processes or steps for blood sampling devices

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • Dermatology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Materials For Medical Uses (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Glass Compositions (AREA)
  • Surgical Instruments (AREA)

Abstract

1. Blood letting lancet for piercing the skin comprising a flat little rod of hard material, a piercing portion having a point and a material thickness which decreases towards the point, characterized in that the little rod consists of tough and hard plastics and that it includes adjacent to its point two knife-type blades (6).

Description

Oppfinnelsen vedrører en blodlansett av kunststoff. The invention relates to a plastic blood lancet.

Blodlansetter blir på detinmédisins.keoområde/jDenyttet i stort antall for punktering, f. eks. av fingertuppen, for å ta ut noen få dråper blod for blodundersøkelse. De er bereg-net for engangsbruk. Blood lancets are used in large numbers for puncture, e.g. of the fingertip, to withdraw a few drops of blood for a blood test. They are designed for single use.

Blodlansetter skal blant annet oppfylle følgende krav; Stabilt gripestykke, begrenset innstikningsdybde, skarp spiss for hurtiggroende, ikke smertende innstikning, korro-sjonsbestandig, sterilt, ingen beskadigelsesfare for brukeren og billig. Blood lancets must, among other things, meet the following requirements; Stable gripper, limited insertion depth, sharp tip for fast-growing, painless insertion, corrosion-resistant, sterile, no danger of damage to the user and cheap.

De i dag vanlige blodlansetter er utstanset av rust- og syrebestandig stål og har følgende ulemper: The blood lancets common today are punched out of rust- and acid-resistant steel and have the following disadvantages:

Det.benyttede stål er et høyverdig, dyrt materiale, som påThe steel used is a high-quality, expensive material, as on

-! grunn av det høye Cr-Ni-innhold dessuten forårsaker en hur-tig slitasje av stanseverktøyene. -! due to the high Cr-Ni content also causes rapid wear of the punching tools.

For å oppnå en skarp spiss bare ved stansing uten etterfølg-ende sliping, må det benyttes en meget tynn plate på f. eks. 0,15 mm tykkelse. For økning av stivheten til gripestykket, må det anbringes avstiyningsribber. In order to achieve a sharp tip only by punching without subsequent grinding, a very thin plate of e.g. 0.15 mm thickness. To increase the rigidity of the grip piece, stiffening ribs must be fitted.

De skarpe kanter på den tynne plate betyr en ikke ubetydelig beskadigelsesfare for brukeren. The sharp edges of the thin plate mean a significant risk of injury to the user.

Den oppgave som ligger til grunn for oppfinnelsen er å unngå de ovenfor nevnte ulemper. Denne oppgave blir løst ved en blodlansett som er kjennetegnet ved det som fremgår av kra-vene. The task underlying the invention is to avoid the above-mentioned disadvantages. This task is solved with a blood lancet which is characterized by what appears in the requirements.

Oppfinnelsens gjenstand er således en blodlansett for bruk ved punkteringer for uttagning av blod for blodunder-søkelse, hvilken blodlansett er; kjennetegnet ved at den fullstendig består av et seigt og hårdt kunststofflegeme med tilformet spiss. The object of the invention is thus a blood lancet for use in punctures for the withdrawal of blood for blood examination, which blood lancet is; characterized by the fact that it consists entirely of a tough and hard plastic body with a shaped tip.

Oppfinnelsen skal i det følgende nærmere forklares ved hjelp av utførelseseksempler som er fremstilt på tegnin-gen, som viser: In the following, the invention will be explained in more detail with the help of design examples which are shown in the drawing, which show:

fig. la en utstanset blodlansett av. kunststoff,fig. leave a punched blood lancet. plastic,

fig. lb et sideriss av den på fig. la viste lansett, fig. 2a en lansett i sprøytestilling i frontriss, fig. 1b is a side view of it in fig. la showed lancet, fig. 2a a lancet in syringe position in frontal view,

fig. 2b et lengdesnitt langs linjen A - B på fig. 2a, fig. 2b a longitudinal section along the line A - B in fig. 2a,

fig. 3a en lansettspiss med knivlignende egg i et frontriss, og fig. 3a a lancet tip with knife-like egg in a front view, and

fig. 3b et lengdesnitt langs den stiplede linje på fig. 3a. fig. 3b a longitudinal section along the dashed line in fig. 3a.

Ifølge oppfinnelsen blir det oppnådd en betydélig reduksjon av beskadigelsesfaren og kostnadene ved anvendelsen av kunststoff i stedet for rust- og syrebestandig stål, da volumprisen for det kunststoff som kommer på tale entydig ligger under den nevnte ståltype. According to the invention, a significant reduction of the risk of damage and the costs is achieved by the use of plastic instead of rust- and acid-resistant steel, as the volume price for the plastic in question is clearly below the aforementioned type of steel.

For oppnåelse av en skarp spiss må det benyttede kunststoff ha en størst mulig hardhet. Samtidig må. det ha en høy seighet for at innstikningsdelen 1 ikke skal brytes av under punkteringen. Kunststoff med denne kombinasjon av egen-skaper er f. eks. polyacetat, polykarbonat, ABS eller hård-PVC, samt enkelte med glassfibre,'glasskuler eller lignende fylte kunststoffer. To achieve a sharp point, the plastic used must have the greatest possible hardness. At the same time must. it has a high toughness so that the insertion part 1 does not break off during the puncture. Plastics with this combination of properties are e.g. polyacetate, polycarbonate, ABS or hard PVC, as well as some with glass fibres, glass balls or similar filled plastics.

Lansettene kan utstanses av plater eller bånd på tilsvarende måte som stållansetter. De får i gripestykket 2 derved hensiktsmessig en innpresset langsgående ribbe 3 som tjener til avstivning. The lancets can be punched out of plates or strips in a similar way to steel lancets. In the gripping piece 2, they thereby suitably have a pressed-in longitudinal rib 3 which serves for stiffening.

Anvendelsen av kunststoff tillater imidlertid også fremstilling av lansetter ved sprøytestøping. Fremgnagsmåten har den fordel at man ikke mer er henvist til den gitte tykkelse for utgangsplaten, men at materialtykkelsen i ethvert om-råde av lansetten kan velges fritt i samsvar med ønskene. Således blir ifølge fig. 2a og 2b for innstikningsdelen 1 valgt en minst mulig veggtykkelse. og for gripestykket 2 en noe større veggtykkelse. However, the use of plastic also allows the production of lancets by injection molding. The method has the advantage that one is no longer referred to the given thickness for the output plate, but that the material thickness in any area of the lancet can be chosen freely in accordance with wishes. Thus, according to fig. 2a and 2b for the insertion part 1 the smallest possible wall thickness is selected. and for the grip piece 2 a somewhat greater wall thickness.

For å forhindre beskadigelsesfare kan avstivningenTo prevent the risk of damage, the bracing can

4 ved sprøytestøpedelen legges ved den ytre kant av gripestykket . 4 at the injection molded part is placed at the outer edge of the grip piece.

For innstikning blir det med fingertuppen trykket mot den øvre kant a<y>gripestykket. For å fordele innstiknings-kraften på en størstvmulig fiåte, "ckan Idenoøv£e^.fcaht-~av' , gt. ppe-stykket forstørres til en anleggsflate 5. For insertion, the fingertip is pressed against the upper edge of the grip piece. In order to distribute the insertion force over the largest possible area, "ckan Idenoøv£e^.fcaht-~av' , gt. the ppe piece is enlarged to a contact surface 5.

Lansetter av stålplate har som allerede nevnt ikke noen spesiell tilslipning ved spissen. Kunststoff gir som ekstra fordel den mulighet ved tilsvarende utforming av stanse-og sprøyteverktøyet at sprøyten i et arbeidstrinn kan utstyres med knivlignende egger 6 ifølge fig. 3a og 3b. Den skarpe spiss muliggjør en innstikning som er særlig lite smertefull. As already mentioned, lancets made of sheet steel do not have any special sharpening at the tip. As an additional advantage, plastic offers the possibility, by corresponding design of the punching and spraying tool, that the sprayer can be equipped with knife-like edges 6 according to fig. 3a and 3b. The sharp tip enables an insertion that is particularly painless.

Blodlansetten ifølge oppfinnelsen kan ved en utfør-elsesform være flat utformet og ha minst en i lengderetning forløpende forsterkningsribbe. Forsterkningsribben kan være tilformet på minst en av breddeflåtene til kunststofflegemet til blodlansetten. In one embodiment, the blood lancet according to the invention can be flat and have at least one reinforcement rib running in the longitudinal direction. The reinforcement rib can be formed on at least one of the width ribs of the plastic body of the blood lancet.

Ved en annen utførelsesform av blodlansetten ifølge oppfinnelsen kan det på minst en smalside av det flate kunststoff legeme være tilformet en forsterkningsribbe. In another embodiment of the blood lancet according to the invention, a reinforcing rib can be formed on at least one narrow side of the flat plastic body.

Claims (8)

1. Blodlansett for bruk ved punktering for uttagning av blod for blodundersøkelse, karakterisert ved at den fullstendig består av et seigt og hårdt kunststofflegeme med tilformet spiss.1. Blood lancet for use when puncturing for taking blood for a blood test, characterized in that it consists entirely of a tough and hard plastic body with a shaped tip. 2. Blodlansett ifølge krav 1, karakterisert ved at den er utstanset av en kunststoffplate eller et kunststoffbånd.2. Blood lancet according to claim 1, characterized in that it is punched out of a plastic plate or a plastic band. 3. Blodlansett ifølge krav 1, karakterisert ved at den er fremstilt som sprø ytestøpedel av kunststoff.3. Blood lancet according to claim 1, characterized in that it is produced as a brittle surface molded part of plastic. 4. Blodlansett ifølge krav 1 og 3, karakterisert ved at den har en ytre kantforsterkning (4) og/eller en anleggsflate (5) for fingertuppen ved den øvre ende av gripestykket (2; 2') .4. Blood lancet according to claims 1 and 3, characterized in that it has an outer edge reinforcement (4) and/or a contact surface (5) for the fingertip at the upper end of the grip piece (2; 2'). 5. Blodlansett ifølge krav 1, karakterisert ved at den har to ved siden av spissen anordnede knivaktige egger (6).5. Blood lancet according to claim 1, characterized in that it has two knife-like edges (6) arranged next to the tip. 6. Blodlansett ifølge krav 1- 5, karakterisert ved at kunststofflegemet (2, 2') er flatt utformet og har minst en i lengderetning forlø pende forsterkningsribbe (3, 4) .6. Blood lancet according to claims 1-5, characterized in that the plastic body (2, 2') is flat and has at least one longitudinal reinforcement rib (3, 4). 7. Blodlansett ifølge krav 6, karakterisert ved at forsterkningsribben (3). er tilformet på minst en av de brede sideflater på kunststofflegemet (2).7. Blood lancet according to claim 6, characterized in that the reinforcement rib (3). is shaped on at least one of the wide side surfaces of the plastic body (2). 8. Blodlansett ifølge krav 6, karakterisert ved at det på minst en smalside av det flate kunststofflegeme (2.'). er tilformet en f orsterkningsribbe (4).8. Blood lancet according to claim 6, characterized in that on at least one narrow side of the flat plastic body (2.'). a reinforcement rib (4) is designed.
NO801135A 1979-04-21 1980-04-18 Blood lancets. NO801135L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7911762U DE7911762U1 (en) 1979-04-21 1979-04-21 Plastic blood lancet1

Publications (1)

Publication Number Publication Date
NO801135L true NO801135L (en) 1980-10-22

Family

ID=6703361

Family Applications (1)

Application Number Title Priority Date Filing Date
NO801135A NO801135L (en) 1979-04-21 1980-04-18 Blood lancets.

Country Status (9)

Country Link
EP (1) EP0017999B1 (en)
JP (1) JPS55155636A (en)
AT (1) ATE2647T1 (en)
BR (1) BR8002417A (en)
DE (2) DE7911762U1 (en)
DK (1) DK168480A (en)
ES (1) ES490689A0 (en)
FI (1) FI801273A (en)
NO (1) NO801135L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208391A1 (en) * 1982-03-09 1983-09-22 Werner 7735 Dauchingen Beiter BLOOD LETTER
FR2595237A1 (en) * 1986-03-07 1987-09-11 Salaun Christian Needle obtained from a single piece of synthetic material and intended to cause the appearance of a drop of blood
US5250066A (en) * 1990-03-19 1993-10-05 Becton Dickinson And Company Plastic pointed articles and method for their preparation
US5607401A (en) * 1991-09-03 1997-03-04 Humphrey; Bruce H. Augmented polymeric hypodermic devices
GB0202603D0 (en) 2002-02-05 2002-03-20 Owen Mumford Ltd Improvements relating to Lancets
EP2229886A1 (en) * 2009-03-17 2010-09-22 Roche Diagnostics GmbH Lance with plastic attachment element

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622597A (en) * 1945-12-15 1952-12-23 John W Lee Subcutaneous medication
US2896628A (en) * 1957-06-12 1959-07-28 Propper Mfg Company Inc Blood lancets
FR1188965A (en) * 1957-12-24 1959-09-28 Device for sampling a liquid in a closed container
US3034507A (en) * 1960-05-10 1962-05-15 American Cyanamid Co Intracutaneous injection device
US3517670A (en) * 1967-11-09 1970-06-30 Propper Mfg Co Inc Blood-letting lancet
US3964482A (en) * 1971-05-17 1976-06-22 Alza Corporation Drug delivery device
FR2393586A1 (en) * 1977-06-08 1979-01-05 Roussel Uclaf DEVICE FOR THE ADMINISTRATION OF DRUG SUBSTANCES

Also Published As

Publication number Publication date
BR8002417A (en) 1980-12-02
EP0017999A1 (en) 1980-10-29
DE7911762U1 (en) 1980-09-25
DE3062171D1 (en) 1983-04-07
ES8101877A1 (en) 1980-12-16
EP0017999B1 (en) 1983-03-02
JPS55155636A (en) 1980-12-04
ATE2647T1 (en) 1983-03-15
ES490689A0 (en) 1980-12-16
DK168480A (en) 1980-10-22
FI801273A (en) 1980-10-22

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