DE2010830C3 - Device for taking blood - Google Patents
Device for taking bloodInfo
- Publication number
- DE2010830C3 DE2010830C3 DE2010830A DE2010830A DE2010830C3 DE 2010830 C3 DE2010830 C3 DE 2010830C3 DE 2010830 A DE2010830 A DE 2010830A DE 2010830 A DE2010830 A DE 2010830A DE 2010830 C3 DE2010830 C3 DE 2010830C3
- Authority
- DE
- Germany
- Prior art keywords
- blood
- piston
- piston rod
- cylinder
- flow
- 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.)
- Expired
Links
- 210000004369 blood Anatomy 0.000 title claims description 18
- 239000008280 blood Substances 0.000 title claims description 18
- 230000006378 damage Effects 0.000 description 4
- 210000003743 erythrocyte Anatomy 0.000 description 3
- 239000004033 plastic Substances 0.000 description 2
- 206010018910 Haemolysis Diseases 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010241 blood sampling Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000008588 hemolysis Effects 0.000 description 1
- 230000000414 obstructive effect Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004078 waterproofing 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
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
-
- 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
- A61B5/15003—Source of blood for venous or arterial blood
-
- 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
- A61B5/150053—Details 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
- A61B5/150061—Means for enhancing collection
- A61B5/150099—Means for enhancing collection by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
-
- 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
- A61B5/150236—Pistons, 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
-
- 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
- A61B5/150244—Rods 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
-
- 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
- A61B5/150259—Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
-
- 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
- A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
-
- 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
- A61B5/150503—Single-ended needles
- A61B5/150519—Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
-
- 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
- A61B5/150755—Blood sample preparation for further analysis, e.g. by separating blood components or by mixing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/487—Physical analysis of biological material of liquid biological material
- G01N33/49—Blood
- G01N33/491—Blood by separating the blood components
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Urology & Nephrology (AREA)
- Biochemistry (AREA)
- Dermatology (AREA)
- Pain & Pain Management (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Ecology (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
Die Erfindung bezieht sich auf eine Vorrichtung zur Blutentnahme, bestehend aus einem einseitigen geschlossenen Zylinder und einem darin verschiebbar und flüssigkeitsdicht geführten, durchbohrten Kolben sowie einer daran anschließenden, rohrförmigen Kolbenstange, an deren freiem, aus dem Zylinder herausragendem Ende sich seitliche Griffe und ein Anschlußstutzen zum Aufsetzen einer Kanüle befinden.The invention relates to a device for taking blood, consisting of a one-sided closed Cylinder and a slidable and liquid-tight guided, pierced piston and an adjoining, tubular piston rod, on the free one protruding from the cylinder At the end there are side handles and a connecting piece for attaching a cannula.
Eine derartige Vorrichtung ist durch das deutsche Gebrauchsmuster 66 04 216 bekanntgeworden. Diese Vorrichtung hat zwar gegenüber den bekannten BluteiiUnahmevorrichtungen, bei denen sich der Anschlußstutzen für die Kanüle am Ende des Zylinders befindet und Kolben und Kolbenstange nicht durchbohrt sind, den Vorteil, daß sich der Zylinder anschließend, nach dem Herausziehen des Kolbens als Transportgefäß sowie auch gegebenenfalls zum Zentrifugieren des entnommenen Blutes eignet und ein Umfüllen vermieden wird.Such a device has become known through the German utility model 66 04 216. These Although the device has compared to the known blood collection devices, in which the connecting piece for the cannula is located at the end of the cylinder and the piston and piston rod are not pierced are, the advantage that the cylinder then, after pulling out the piston as Transport vessel and, if necessary, also suitable for centrifuging the removed blood Refilling is avoided.
Der Nachteil der bekannten Verrichtung besteht jedoch darin, daß der Weg, über den das entnommene Blut in einem engen Strömungsquerschnitt und folglich mit großer Strömungsgeschwindigkeit bewegt wird, erheblich größer als bei den bekannten Blutentnahmevorrichtungen ist Während dort nämlich das Blut lediglich durch die Kanüle strömen muß, die im allgemeinen sehr kurz gehalten ist, ist der Strömungskanal bei einer Vorrichtung nach dem genannten Gebrauchsmuster wesentlich länger, im allgemeinen etwa dreimal so lang wie die Länge der Kanüle.The disadvantage of the known performance is there however, in the fact that the path over which the withdrawn blood is in a narrow flow cross-section and consequently is moved at a high flow rate, considerably larger than in the known blood collection devices While there the blood only has to flow through the cannula that is in the is generally kept very short, the flow channel is in a device according to the above Utility model much longer, generally about three times as long as the length of the cannula.
Aus diesem langen Strömungsweg über einen engen Strömungsquerschnitt resultieren zwei Nachteile:This long flow path over a narrow flow cross-section has two disadvantages:
Einmal wird der Strömungswiderstand stark erhöht und e:s wird in der praktischen Handhabung zwangsläufig ein höherer Unterdruck in dem Zylinder erzeugt werden, als bei den bekannten Vorrichtungen, bei denen sich der Innenraum schneller mit Blut füllt Der größere und für eine längere Zeit bestehende Unterdruck wird dann ein Aufschäumen des in den Zylinder eintretenden Blutes durch Entgasung zur Folge haben, wobei die roten Blutkörperchen stärker geschädigt werden, als bei den bekannten Vorrichtungen.On the one hand, the flow resistance is greatly increased and e: s becomes inevitable in practical use a higher negative pressure are generated in the cylinder than in the known devices in which the interior fills with blood faster The greater negative pressure, which exists for a longer period of time, becomes then result in foaming of the blood entering the cylinder by degassing, the red blood cells are damaged more than with the known devices.
Zürn anderen entsteht bei großer Strömungsgeschwindigkeit in dem längeren Strömungskanal eine turbulente Strömung, die auch ihrerseits dazu beiträgt, die roten Blutkörperchen teilweise zu zerstören. Die Schädigung wird auch hier größer als bei einer bekannten Blutentnahmevorrichtung mit ihrem kürzeren Strömungsweg.For others it arises when the flow velocity is high a turbulent flow in the longer flow channel, which in turn contributes to partially destroy the red blood cells. The damage is also greater here than with one known blood collection device with its shorter flow path.
Selbstverständlich stören derartige Beeinträchtiguneen des entnommenen Blutes nicht bei allen Untersuchungen; bei einem Teil dieser Untersuchungen ist aber die teilweise Zerstörung der roten Blutkörperchen ausgesprochen hinderlich. Das hat dazu geführt, daß viele Arzte für solche speziellen Untersuchungen die unterdruckfreie Entnahme des Blutes vorziehen.It goes without saying that such impairments of the blood taken do not interfere with all examinations; Part of these examinations is the partial destruction of the red blood cells downright obstructive. This has led many doctors to do such special tests Prefer negative pressure-free blood sampling.
Für die große Anzahl von Untersuchungen jedoch, die in der ärztlichen Praxis und in Krankenhäusern vorgenommen werden müssen, sind Blutentnahmevorrichtungen, die mit Unterdruck arbeiten, also das BlutFor the large number of examinations, however, that are carried out in medical practices and hospitals must be carried out are blood collection devices, that work with negative pressure, i.e. the blood
■ο absaugen, doch unentbehrlich. Es kommt darauf an, diese Vorrichtungen so auszubilden, daß die geringstmögliche Schädigung des Blutes erreicht wird.■ ο suction, but indispensable. It depends on, to design these devices so that the least possible damage to the blood is achieved.
Der Erfindung liegt demnach die Aufgabe zugrunde, die vorerwähnten Nachteile der bekannten Vorrichtung zu beseitigen. Zur Lösung dieser Aufgabe wird vorgeschlagen, daß sich die Bohrung der rohrförmigenThe invention is therefore based on the object of the aforementioned disadvantages of the known device to eliminate. To solve this problem it is proposed that the bore of the tubular
konisch verjüngtconically tapered
stand in der Kolbenstange erheblich verringert. Das ergibt sich daraus, daß der Strömungswiderstand eines Rohres nicht umgekehrt proportional zu dessen Innendurchmesser zu- bzw. abnimmt, sondern zu einer höheren Potenz dieses Durchmessers. Schon eine Verdoppelung des Innendurchmessers eines Rohres erbringt deshalb eine ganz erhebliche Herabsetzung des Strömungswiderstandes. In gleicher Weise wird der Strömungswiderstand natürlich auch dadurch herabgesetzt, daß sich der Durchmesser bei der konischen Bohrung vom Anschlußstutzen zum Kolben hin allmählich erweitert, wobei diese Erweiterung in der praktischen Ausbildung leicht bis auf den dreifachen oder vierfachen Durchmesser der Kanüle vorgenommen werden kann.stood in the piston rod significantly reduced. This results from the fact that the flow resistance of a Tube does not increase or decrease inversely proportional to its inner diameter, but to one higher potency of this diameter. Just a doubling of the inside diameter of a pipe therefore results in a very considerable reduction in the flow resistance. In the same way, the Flow resistance is of course also reduced by the fact that the diameter of the conical Bore from the connecting piece to the piston gradually expanded, this expansion in the practical training easily made up to three or four times the diameter of the cannula can be.
Zum anderen ergibt sich ein allmählicher Übergang der Strömungsgeschwindigkeit von ihrem größten Wert innerhalb der Kanüle bis zu einem erheblich niedrigeren Wert an der Stelle des Austrittes des Blutes aus der Kolbenöffnung in den Zylinder. Es gibt also bei dieser Ausführung keine Störungen des Strömungsbildes durch Unregelmäßigkeiten im Verlauf des Strömungskanals, so daß die Bildung von Wirbeln und damit eine zusätzliche Schädigung des entnommenen Blutes vermieden wird.On the other hand, there is a gradual transition of the flow velocity from its greatest value inside the cannula to a considerably lower value at the point of exit of the blood from the Piston opening into the cylinder. So there are no disturbances in the flow pattern with this design by irregularities in the course of the flow channel, so that the formation of eddies and thus a additional damage to the withdrawn blood is avoided.
Es hat sich in der Praxis gezeigt, daß die konische Gestaltung der Bohrung der Kolbenstange die Hämolyse des entnommenen Blutes auf einen Mindestwert herabdrückt, der jetzt — wegen der zwangsläufig vorhandenen engen Kanüle — nicht weiter unterschritten werden kann. Der Kolben und die Kolbenstange sowie die Führungsflügel der Kolbenstange sind zusammen mit den seitlichen Griffen und dem Anschlußstutzen zweckmäßig aus einem elastischen Kunststoff hergestellt, so daß sich eine gute FührungIt has been shown in practice that the conical design of the bore of the piston rod causes hemolysis of the blood drawn down to a minimum value, which now - because of the inevitable existing narrow cannula - can not be undercut any further. The piston and the piston rod as well as the guide wings of the piston rod are together with the side handles and the Connection piece suitably made of an elastic plastic, so that a good guide
SS und Abdichtung ergibt. Der Zylinder kann in an sich bekannter Weise entweder aus Glas oder aus Kunststoff hergestellt sein.SS and waterproofing results. The cylinder can in itself known way be made either of glass or plastic.
Die Erfindung wird nachstehend in einem Ausführungsbeispiel anhand der Zeichnung näher erläutertThe invention is explained in more detail below in an exemplary embodiment with reference to the drawing
F i g. 1 einen Längsschnitt durch die neuartige Vorrichtung undF i g. 1 shows a longitudinal section through the novel device and
F i g. 2 einen vergrößerten Querschnitt längs der Linie H-Il aus Fig. 1.F i g. FIG. 2 shows an enlarged cross section along the line II-II from FIG. 1.
Wie man sieht, ist die Hülse der Vorrichtung als einseitig geschlossenes Röhrchen 1 ausgebildet, wie es bereits als Zentrifugenröhrchen verwendet wird.As you can see, the sleeve of the device is designed as a tube 1 closed on one side, like it is already being used as a centrifuge tube.
ge Kolben 4, der eine Mittelbohrung besitzt, und die daran anschließende rohrförmige Kolbenstange 2 mit 4 seitlichen Führungsflügeln 3. Die Bohrung 6 der Kolbenstange 2 verjüngt sich vom Kolben 4 aus konisch zum oberen Ende, an dem sich an die Kolbenstange 2 ein Anschlußstutzen 7 bekannter Bauart anschließt Auf diesen Anschlußstutzen kann eine Kanüle 9 mittels ihrer Kappe 8 aufgesetzt werden.ge piston 4, which has a central bore, and the adjoining tubular piston rod 2 with 4 lateral guide wings 3. The bore 6 of the The piston rod 2 tapers conically from the piston 4 to the upper end, at which the piston rod 2 is attached Connection piece 7 of known design connects to this connection piece, a cannula 9 by means of its Cap 8 can be put on.
Etwa an der Stelle, an der sich an die rohrförmige Kolbenstange 2 der Anschlußstutzen 7 anschließt.Approximately at the point at which the connecting piece 7 connects to the tubular piston rod 2.
erstrecken sich zwei Griffe 5 radial nach ?ußen, die das Hantieren mit der Vorrichtung erleichtern. Der Kolben 4, die rohrförmige Kolbenstange 2, die Führungsflügel 3, der Anschlußstulzen 7 und die Griffe 5 sind einstückig aus Polypropylen hergestellttwo handles 5 extend radially outwards, which the Make handling the device easier. The piston 4, the tubular piston rod 2, the guide wings 3, the connecting pieces 7 and the handles 5 are made in one piece from polypropylene
Wie man aus Fig.2 erkennt, legen sich die Führungsflügel 3 mit ihren Außenkanten dicht an den Innenmantel des Röhrchens 1 an und führen damit den Kolben einwandfrei.As can be seen from Fig.2, the Guide wings 3 with their outer edges close to the inner jacket of the tube 1 and thus lead the Piston flawless.
Claims (1)
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE789954D BE789954A (en) | 1970-03-07 | BLOOD COLLECTION DEVICE | |
DE2010830A DE2010830C3 (en) | 1970-03-07 | 1970-03-07 | Device for taking blood |
DE19702034457 DE2034457A1 (en) | 1970-03-07 | 1970-07-11 | Tools for blood tests |
DE19717111793U DE7111793U (en) | 1970-03-07 | 1971-03-27 | STOPPER FOR BLOOD COLLECTION DEVICE |
DE19712150884 DE2150884C3 (en) | 1971-10-13 | Tools for blood tests | |
GB5361271A GB1390621A (en) | 1970-03-07 | 1972-02-27 | Device for the extraction of blood |
DE2245584A DE2245584C3 (en) | 1970-03-07 | 1972-09-16 | Device for taking blood |
CH1477572A CH548765A (en) | 1970-03-07 | 1972-10-10 | Device for collecting blood. |
CA154,125A CA1012023A (en) | 1970-03-07 | 1972-10-12 | Device for the extraction of blood |
US297219A US3886928A (en) | 1970-03-07 | 1972-10-13 | Device for the extraction of blood |
FR7236318A FR2157471A5 (en) | 1970-03-07 | 1972-10-13 | |
NL7213918A NL7213918A (en) | 1970-03-07 | 1972-10-13 | |
JP10194672A JPS575541B2 (en) | 1970-03-07 | 1972-10-13 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2010830A DE2010830C3 (en) | 1970-03-07 | 1970-03-07 | Device for taking blood |
DE19702034457 DE2034457A1 (en) | 1970-03-07 | 1970-07-11 | Tools for blood tests |
DE19712150884 DE2150884C3 (en) | 1971-10-13 | Tools for blood tests | |
DE2245584A DE2245584C3 (en) | 1970-03-07 | 1972-09-16 | Device for taking blood |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2010830A1 DE2010830A1 (en) | 1971-09-16 |
DE2010830B2 DE2010830B2 (en) | 1977-09-22 |
DE2010830C3 true DE2010830C3 (en) | 1978-05-11 |
Family
ID=46679342
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2010830A Expired DE2010830C3 (en) | 1970-03-07 | 1970-03-07 | Device for taking blood |
DE19702034457 Pending DE2034457A1 (en) | 1970-03-07 | 1970-07-11 | Tools for blood tests |
DE19717111793U Expired DE7111793U (en) | 1970-03-07 | 1971-03-27 | STOPPER FOR BLOOD COLLECTION DEVICE |
DE2245584A Expired DE2245584C3 (en) | 1970-03-07 | 1972-09-16 | Device for taking blood |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19702034457 Pending DE2034457A1 (en) | 1970-03-07 | 1970-07-11 | Tools for blood tests |
DE19717111793U Expired DE7111793U (en) | 1970-03-07 | 1971-03-27 | STOPPER FOR BLOOD COLLECTION DEVICE |
DE2245584A Expired DE2245584C3 (en) | 1970-03-07 | 1972-09-16 | Device for taking blood |
Country Status (9)
Country | Link |
---|---|
US (1) | US3886928A (en) |
JP (1) | JPS575541B2 (en) |
BE (1) | BE789954A (en) |
CA (1) | CA1012023A (en) |
CH (1) | CH548765A (en) |
DE (4) | DE2010830C3 (en) |
FR (1) | FR2157471A5 (en) |
GB (1) | GB1390621A (en) |
NL (1) | NL7213918A (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH585546A5 (en) * | 1974-04-02 | 1977-03-15 | Sarstedt Kunststoff | |
US3977405A (en) * | 1975-04-07 | 1976-08-31 | Shozaburo Yanase | Breast pump |
US4020831A (en) * | 1975-12-04 | 1977-05-03 | Technicon Instruments Corporation | Blood collecting syringe |
AT387467B (en) * | 1979-09-11 | 1989-01-25 | Terumo Corp | BLOOD COLLECTION TUBE |
US4310430A (en) * | 1979-09-11 | 1982-01-12 | Terumo Corporation | α-Olefin-dialkylmaleate-based liquid separating agent |
DK150403C (en) * | 1983-07-15 | 1987-07-13 | Radiometer As | BLOOD SAMPLING EQUIPMENT |
DE4036673C2 (en) * | 1990-11-17 | 2002-12-12 | Sarstedt Ag & Co | The blood collection device |
US5246666A (en) * | 1992-05-08 | 1993-09-21 | Becton, Dickinson And Company | Additive having dual surface chemistry for blood collection container and assembly containing same |
US5419874A (en) * | 1992-07-06 | 1995-05-30 | Beckman Instruments, Inc. | Synthesis reaction column |
US5869158A (en) * | 1992-12-14 | 1999-02-09 | Porex Technologies Corp. | Safety sampler |
US5378431A (en) * | 1993-06-14 | 1995-01-03 | Becton, Dickinson And Company | Dual pathway clotting enhancer for blood collection tube |
SE9402812D0 (en) * | 1994-08-19 | 1994-08-19 | Karl Erik Sundstroem | Blood collection, plasma separation and high precision plasma dispensing device |
DE4445030A1 (en) * | 1994-12-16 | 1996-06-27 | Heraeus Instr Gmbh | Medical instrument which can be centrifuged |
US7947236B2 (en) | 1999-12-03 | 2011-05-24 | Becton, Dickinson And Company | Device for separating components of a fluid sample |
JP2001161668A (en) * | 1999-12-07 | 2001-06-19 | Terumo Corp | Blood-collecting equipment |
US7090646B2 (en) * | 2003-09-09 | 2006-08-15 | Westmed, Inc. | Plunger-less syringe for controlling blood flow |
WO2010011667A2 (en) | 2008-07-21 | 2010-01-28 | Becton, Dickinson And Company | Density phase separation device |
US9333445B2 (en) | 2008-07-21 | 2016-05-10 | Becton, Dickinson And Company | Density phase separation device |
PL2326422T3 (en) * | 2008-07-21 | 2013-12-31 | Becton Dickinson Co | Density phase separation device |
ES2897762T3 (en) | 2009-05-15 | 2022-03-02 | Becton Dickinson Co | Density phase separation device |
US9694359B2 (en) | 2014-11-13 | 2017-07-04 | Becton, Dickinson And Company | Mechanical separator for a biological fluid |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3433216A (en) * | 1966-12-22 | 1969-03-18 | Roger P Mattson | Self-evacuating fluid sampling device |
US3508653A (en) * | 1967-11-17 | 1970-04-28 | Charles M Coleman | Method and apparatus for fluid handling and separation |
FR1590199A (en) * | 1968-10-10 | 1970-04-13 | ||
US3647070A (en) * | 1970-06-11 | 1972-03-07 | Technicon Corp | Method and apparatus for the provision of fluid interface barriers |
JPS4715486U (en) * | 1971-03-22 | 1972-10-23 |
-
0
- BE BE789954D patent/BE789954A/en unknown
-
1970
- 1970-03-07 DE DE2010830A patent/DE2010830C3/en not_active Expired
- 1970-07-11 DE DE19702034457 patent/DE2034457A1/en active Pending
-
1971
- 1971-03-27 DE DE19717111793U patent/DE7111793U/en not_active Expired
-
1972
- 1972-02-27 GB GB5361271A patent/GB1390621A/en not_active Expired
- 1972-09-16 DE DE2245584A patent/DE2245584C3/en not_active Expired
- 1972-10-10 CH CH1477572A patent/CH548765A/en not_active IP Right Cessation
- 1972-10-12 CA CA154,125A patent/CA1012023A/en not_active Expired
- 1972-10-13 FR FR7236318A patent/FR2157471A5/fr not_active Expired
- 1972-10-13 US US297219A patent/US3886928A/en not_active Expired - Lifetime
- 1972-10-13 JP JP10194672A patent/JPS575541B2/ja not_active Expired
- 1972-10-13 NL NL7213918A patent/NL7213918A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE2150884B2 (en) | 1975-12-11 |
DE2010830B2 (en) | 1977-09-22 |
JPS4847191A (en) | 1973-07-04 |
DE2245584A1 (en) | 1974-03-21 |
DE2245584C3 (en) | 1980-01-03 |
GB1390621A (en) | 1975-04-16 |
NL7213918A (en) | 1973-04-17 |
US3886928A (en) | 1975-06-03 |
DE7111793U (en) | 1971-07-01 |
JPS575541B2 (en) | 1982-01-30 |
CH548765A (en) | 1974-05-15 |
CA1012023A (en) | 1977-06-14 |
DE2150884A1 (en) | 1973-04-19 |
DE2034457A1 (en) | 1972-02-17 |
DE2245584B2 (en) | 1979-04-26 |
FR2157471A5 (en) | 1973-06-01 |
DE2010830A1 (en) | 1971-09-16 |
BE789954A (en) | 1973-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
8339 | Ceased/non-payment of the annual fee |