WO1987005198A1 - Dispositif de prise de sang - Google Patents

Dispositif de prise de sang Download PDF

Info

Publication number
WO1987005198A1
WO1987005198A1 PCT/DE1987/000092 DE8700092W WO8705198A1 WO 1987005198 A1 WO1987005198 A1 WO 1987005198A1 DE 8700092 W DE8700092 W DE 8700092W WO 8705198 A1 WO8705198 A1 WO 8705198A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
piston
blood
piston rod
handle
Prior art date
Application number
PCT/DE1987/000092
Other languages
German (de)
English (en)
Inventor
Uwe Ballies
Original Assignee
Uwe Ballies
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 Uwe Ballies filed Critical Uwe Ballies
Publication of WO1987005198A1 publication Critical patent/WO1987005198A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—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
    • 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
    • A61B5/150206—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
    • A61B5/150351—Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
    • 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
    • A61B5/150885—Preventing re-use
    • A61B5/150908—Preventing re-use by disconnecting components, e.g. breaking or rupturing of connected parts, e.g. piston and rod

Definitions

  • the invention relates to a blood sampling device with a tube, a device arranged at the bottom of the tube for introducing the blood, a piston inserted into the tube and a piston rod for moving the piston in the tube.
  • the piston rod is connected directly to the piston via a predetermined breaking point, the piston rod being broken off after the blood has been drawn into the tube and the piston remaining in the tube, closing the upper end thereof. Access to the withdrawn blood is then made possible by unscrewing a cap which closes the bottom of the tube and which accommodates the cannula socket which forms the device for introducing the blood. The cap closing the bottom of the tube is then unscrewed again for analyzing the withdrawn blood.
  • the known blood collection device has the disadvantage that during manufacture the cap closing the bottom of the tube is shaped separately, screwed onto the tube and used to analyze the blood must be unscrewed again.
  • the invention has for its object to improve the blood collection device of the type mentioned in such a way that the manufacture and use is simplified.
  • this object is achieved in that a handle piece is arranged between the piston and the piston rod, which is fixed to the piston and connected to the piston rod via a predetermined breaking point.
  • a particularly preferred embodiment is characterized by a stopper formed on the inner wall of the tube in the vicinity of its upper edge.
  • This stopper is preferably formed as a thread, the piston being provided with knobs or the like which engage in the thread.
  • the handle is tongue-shaped and is provided with corrugation.
  • the handle can also be pear-shaped.
  • Fig. 1 is a sectional view of the device before taking blood
  • Fig. 2 is a sectional view of the device after blood sampling.
  • the blood collection device consists of a tube 10, a cannula nozzle attached to its base 12
  • a piston 16 arranged displaceably in the tube, a handle 22 connected to the piston 16 and connected to a piston rod 18 via a predetermined breaking point 20.
  • a cannula (not shown) is attached to the cannula nozzle 14 and, after being inserted into the vein, the blood is drawn into the tube by pulling the piston rod 18; After the knobs 30 of the piston 16 abut against the thread 28 formed in the vicinity of the upper edge 26 of the tube ⁇ 10, the piston rod 18 is broken off above the handle piece 22 at the predetermined breaking point 20. The handle 22 now protrudes beyond the edge 26 of the tube 10 and is therefore accessible. After removing the piston rod 18, the piston 16 now forms a stopper which reliably closes the tube.
  • the grip between the thumb and forefinger is grasped and rotated counter-clockwise relative to the tube 10.
  • the knobs engage in the thread 28, which causes an axial displacement of the piston in the tube when further turning.
  • the piston is pushed axially out of the tube.
  • the piston 16 can be pulled off slightly upwards, since the sealing lips 32 arranged at the lower end of the piston - unlike the knobs 30 - are flexible.
  • the proposed device can also be used with cannulas in which the device for introducing the blood is not formed by a cannula nozzle but by a membrane to be pierced by a cannula.
  • the knobs 30 or the like on the piston 16 can be wedge-shaped with a downward slope so that the piston can be inserted into the tube without a turning operation. However, it is also possible to stamp the thread 28 on the tube only after it has been inserted into the tube.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

Un dispositif de prise de sang comprend un tubule (10), un élément agencé au fond (12) du tubule (10) pour introduire le sang dans le tubule, un piston (16) mobile dans le tubule (10) et une tige de piston (18) pour mettre en mouvement le piston (16) dans le tubule (10). Une poignée (22) agencée entre le piston (16) et la tige de piston (18) est attachée de manière fixe au piston (16) et reliée à la tige de piston (18) par un point (20) destiné à la rupture.
PCT/DE1987/000092 1986-03-04 1987-03-04 Dispositif de prise de sang WO1987005198A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8605803U DE8605803U1 (de) 1986-03-04 1986-03-04 Blutentnahmevorrichtung
DEG8605803.7U 1986-03-04

Publications (1)

Publication Number Publication Date
WO1987005198A1 true WO1987005198A1 (fr) 1987-09-11

Family

ID=6792329

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1987/000092 WO1987005198A1 (fr) 1986-03-04 1987-03-04 Dispositif de prise de sang

Country Status (3)

Country Link
EP (1) EP0262165A1 (fr)
DE (1) DE8605803U1 (fr)
WO (1) WO1987005198A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0643944A1 (fr) * 1993-09-22 1995-03-22 B. Braun Melsungen Ag Dispositif de prélèvement de sang

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747812A (en) * 1971-10-21 1973-07-24 Medical Concepts Inc Syringe
US3937211A (en) * 1972-10-27 1976-02-10 Fa. Walter Sarstedt Kunststoff-Spritzgusswerk Multi-purpose syringe
DE3120258A1 (de) * 1980-05-22 1982-03-18 Behringwerke Ag, 3550 Marburg "vorrichtung zur entnahme von blut und ihre verwendung zur abtrennung von blutzellen"
EP0143292A1 (fr) * 1983-10-27 1985-06-05 Uwe Werner Dr. Ballies Dispositif pour prélever des échantillons sanguins
US4562844A (en) * 1984-11-27 1986-01-07 Jett Labs, Inc. Multipurpose syringe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747812A (en) * 1971-10-21 1973-07-24 Medical Concepts Inc Syringe
US3937211A (en) * 1972-10-27 1976-02-10 Fa. Walter Sarstedt Kunststoff-Spritzgusswerk Multi-purpose syringe
DE3120258A1 (de) * 1980-05-22 1982-03-18 Behringwerke Ag, 3550 Marburg "vorrichtung zur entnahme von blut und ihre verwendung zur abtrennung von blutzellen"
EP0143292A1 (fr) * 1983-10-27 1985-06-05 Uwe Werner Dr. Ballies Dispositif pour prélever des échantillons sanguins
US4562844A (en) * 1984-11-27 1986-01-07 Jett Labs, Inc. Multipurpose syringe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0643944A1 (fr) * 1993-09-22 1995-03-22 B. Braun Melsungen Ag Dispositif de prélèvement de sang

Also Published As

Publication number Publication date
EP0262165A1 (fr) 1988-04-06
DE8605803U1 (de) 1987-07-02

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