US2164711A - Instrument for drawing blood - Google Patents

Instrument for drawing blood Download PDF

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Publication number
US2164711A
US2164711A US253689A US25368939A US2164711A US 2164711 A US2164711 A US 2164711A US 253689 A US253689 A US 253689A US 25368939 A US25368939 A US 25368939A US 2164711 A US2164711 A US 2164711A
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United States
Prior art keywords
instrument
blood
wheel
hand
drawing blood
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Expired - Lifetime
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US253689A
Inventor
Godfrey J Kadavy
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Individual
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Priority to US253689A priority Critical patent/US2164711A/en
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Publication of US2164711A publication Critical patent/US2164711A/en
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    • 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
    • A61B5/150259Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
    • 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
    • A61B5/150206Construction 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
    • A61B5/150343Collection vessels for collecting blood samples from the skin surface, e.g. test tubes, cuvettes
    • 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
    • A61B5/150106Means for reducing pain or discomfort applied before puncturing; desensitising the skin at the location where body is to be pierced
    • A61B5/150145Means for reducing pain or discomfort applied before puncturing; desensitising the skin at the location where body is to be pierced by negative pressure, e.g. suction, vacuum
    • 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
    • A61B5/150946Means for varying, regulating, indicating or limiting the speed or time of blood collection

Definitions

  • This invention aims to provide a simple means for supplying mechanically produced suction, to draw blood, a novel mechanism being furnished for operating the pumping or suction means, said mechanism being capable of being actuated by the hand wherein the device is held.
  • FIG. 1 shows in side elevation, a device constructed in accordance with the invention, parts being broken away;
  • Fig. 2 is a section on the line 22 of Fig. 1;
  • Fig. 3 is a section on the line 3-3 of Fig. 2.
  • a body B which is pear-shaped, as shown in Fig. 2.
  • the body B is reduced in thickness, somewhat, as disclosed in Fig. 1, so that it can be held readily in the hand of an operator.
  • the body 13 includes a head I having a reduced neck 2.
  • the body B includes a main member 3, having a recess 4,
  • a chamber 1 is formed in the main member 3 and in the closure 5. There is, in the edge of the head I, a slot 8,
  • the neck 2 has a lateral extension I0, adapted to receive a rubber stopper I I, constituting means for holding a blood nozzle I2 in communication with the cylinder t, the blood nozzle being the ordinary pipette.
  • a piston I4 is mounted for reciprocation in the cylinder 9, and is supplied at one end with a reduced fin I5, to one side of which is pivoted at It, a pitman II, the pitman being pivoted at I8 to a wheel I9 mounted to turn on the shaft or screw 6.
  • the wheel I9 is located, for the most part, in the chamber I, but a small portion of the wheel projects outwardly through the slot 8, the wheel I9 having a milled periphery.
  • the operator takes the instrument in one hand, and that hand may be used to turn the wheel I9, motion being transmitted to the piston I4 by way of the pitman I1, and blood being drawn into and ejected from the cylinder 9, by way of the pipette I2.
  • the instrument is very simple in construction and in operation but is thoroughly effective for the ends in view. It is unnecessary to apply suction to the pipette I2 from the operators mouth. Since the instrument is both held and operated by one hand, the other hand of the surgeon is left free.
  • a device adapted to be used in such operations as drawing and delivering blood for tests comprising a body shaped to be held in one hand, the body comprising suction and ejection means, and mechanism for actuating the suction and ejection means, said mechanism embodying a wheel mounted to rotate on the body and constituting the element to which operating force is applied initially, the wheel being of such diameter that it can be housed partially within the body, the diameter of the wheel being such, considered rela tively to the Width of the body, that the wheel will be exposed outwardly of the body for actuation by the hand in which the body is held, and whilst said hand retains its hold upon the body.

Description

July 4, 1939. G. .1. KADAVY INSTRUMENT FOR DRAWING BLOOD 9 7 5 wmul hfiflw l W m NH I 2 K 4 A -W Q... J 5 0 J 6 5 a i l M 1 y I w W 1 d u o 6 Filed Jan. 50, 1939 fi A A i V/V/MW/AV Patented July 4, 1939 PATENT OFFICE INSTRUMENT FOR DRAWING BLOOD Godfrey J. Kad
avy, Omaha, Nebr.
Application January 30, 1939, Serial No. 253,689
1 Claim.
In drawing human blood for a blood test, resorting to an established custom, a piece of rubber tubing is attached to a blood pipette, and mouth suction is applied to the rubber tubing, a custom having obvious disadvantages. This invention aims to provide a simple means for supplying mechanically produced suction, to draw blood, a novel mechanism being furnished for operating the pumping or suction means, said mechanism being capable of being actuated by the hand wherein the device is held.
It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.
With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it
being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.
In the drawing:
Fig. 1 shows in side elevation, a device constructed in accordance with the invention, parts being broken away;
Fig. 2 is a section on the line 22 of Fig. 1;
Fig. 3 is a section on the line 3-3 of Fig. 2.
In carrying out the invention, there is provided a body B, which is pear-shaped, as shown in Fig. 2. The body B is reduced in thickness, somewhat, as disclosed in Fig. 1, so that it can be held readily in the hand of an operator. As
to shape, the body 13 includes a head I having a reduced neck 2. As to structure, the body B includes a main member 3, having a recess 4,
0 adapted to receive a closure 5, the closure being held in place by a combined shaft and securing element 6, such as a screw. A chamber 1 is formed in the main member 3 and in the closure 5. There is, in the edge of the head I, a slot 8,
communicating with the chamber 1, and disposed partly in the closure 5 and partly in the main member 3. A cylinder 9 is formed in the neck 2. The neck 2 has a lateral extension I0, adapted to receive a rubber stopper I I, constituting means for holding a blood nozzle I2 in communication with the cylinder t, the blood nozzle being the ordinary pipette.
A piston I4 is mounted for reciprocation in the cylinder 9, and is supplied at one end with a reduced fin I5, to one side of which is pivoted at It, a pitman II, the pitman being pivoted at I8 to a wheel I9 mounted to turn on the shaft or screw 6. The wheel I9 is located, for the most part, in the chamber I, but a small portion of the wheel projects outwardly through the slot 8, the wheel I9 having a milled periphery.
The operator takes the instrument in one hand, and that hand may be used to turn the wheel I9, motion being transmitted to the piston I4 by way of the pitman I1, and blood being drawn into and ejected from the cylinder 9, by way of the pipette I2.
The instrument is very simple in construction and in operation but is thoroughly effective for the ends in view. It is unnecessary to apply suction to the pipette I2 from the operators mouth. Since the instrument is both held and operated by one hand, the other hand of the surgeon is left free.
What is claimed is:
A device adapted to be used in such operations as drawing and delivering blood for tests, comprising a body shaped to be held in one hand, the body comprising suction and ejection means, and mechanism for actuating the suction and ejection means, said mechanism embodying a wheel mounted to rotate on the body and constituting the element to which operating force is applied initially, the wheel being of such diameter that it can be housed partially within the body, the diameter of the wheel being such, considered rela tively to the Width of the body, that the wheel will be exposed outwardly of the body for actuation by the hand in which the body is held, and whilst said hand retains its hold upon the body.
GODFREY J. KADAVY.
US253689A 1939-01-30 1939-01-30 Instrument for drawing blood Expired - Lifetime US2164711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US253689A US2164711A (en) 1939-01-30 1939-01-30 Instrument for drawing blood

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Application Number Priority Date Filing Date Title
US253689A US2164711A (en) 1939-01-30 1939-01-30 Instrument for drawing blood

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US2164711A true US2164711A (en) 1939-07-04

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406170A (en) * 1979-07-02 1983-09-27 Eppendorf Geratebau Netheler & Hinz Gmbh Repeating pipetting device
US4527437A (en) * 1983-07-06 1985-07-09 Wescor, Inc. Pipette controller
EP0363516A1 (en) * 1988-10-14 1990-04-18 Becton, Dickinson and Company Thermoelectric chiller and automatic syringue
EP0577354A1 (en) * 1992-06-29 1994-01-05 Baxter Travenol Laboratories, Inc. Syringe driving apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406170A (en) * 1979-07-02 1983-09-27 Eppendorf Geratebau Netheler & Hinz Gmbh Repeating pipetting device
US4527437A (en) * 1983-07-06 1985-07-09 Wescor, Inc. Pipette controller
EP0363516A1 (en) * 1988-10-14 1990-04-18 Becton, Dickinson and Company Thermoelectric chiller and automatic syringue
EP0556878A2 (en) * 1988-10-14 1993-08-25 Becton, Dickinson and Company Thermoelectric chiller and automatic syringe
EP0556878A3 (en) * 1988-10-14 1993-10-13 Becton, Dickinson and Company Thermoelectric chiller and automatic syringe
EP0577354A1 (en) * 1992-06-29 1994-01-05 Baxter Travenol Laboratories, Inc. Syringe driving apparatus
US5336201A (en) * 1992-06-29 1994-08-09 Baxter International Inc. Syringe driving apparatus

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