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
Links
- 239000008280 blood Substances 0.000 title claims abstract description 24
- 210000004369 blood Anatomy 0.000 title claims abstract description 24
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 230000002787 reinforcement Effects 0.000 claims description 6
- 238000009534 blood test Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 238000004080 punching Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000004159 blood analysis Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15142—Devices intended for single use, i.e. disposable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
- A61B5/150427—Specific tip design, e.g. for improved penetration characteristics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15103—Piercing procedure
- A61B5/15105—Purely manual piercing, i.e. the user pierces the skin without the assistance of any driving means or driving devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150274—Manufacture 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
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)
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)
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)
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 |
-
1979
- 1979-04-21 DE DE7911762U patent/DE7911762U1/en not_active Expired
-
1980
- 1980-04-18 BR BR8002417A patent/BR8002417A/en unknown
- 1980-04-18 ES ES490689A patent/ES490689A0/en active Granted
- 1980-04-18 DE DE8080102102T patent/DE3062171D1/en not_active Expired
- 1980-04-18 EP EP80102102A patent/EP0017999B1/en not_active Expired
- 1980-04-18 NO NO801135A patent/NO801135L/en unknown
- 1980-04-18 AT AT80102102T patent/ATE2647T1/en not_active IP Right Cessation
- 1980-04-21 DK DK168480A patent/DK168480A/en not_active IP Right Cessation
- 1980-04-21 JP JP5346080A patent/JPS55155636A/en active Pending
- 1980-04-21 FI FI801273A patent/FI801273A/en not_active Application Discontinuation
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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