US2702549A - Instrument - Google Patents

Instrument Download PDF

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Publication number
US2702549A
US2702549A US391531A US39153153A US2702549A US 2702549 A US2702549 A US 2702549A US 391531 A US391531 A US 391531A US 39153153 A US39153153 A US 39153153A US 2702549 A US2702549 A US 2702549A
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US
United States
Prior art keywords
instrument
cylinder
piston
blood
needle
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 - Lifetime
Application number
US391531A
Inventor
Robert N Baehr
Chester L Valent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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.)
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Publication date
Application filed by Individual filed Critical Individual
Priority to US391531A priority Critical patent/US2702549A/en
Application granted granted Critical
Publication of US2702549A publication Critical patent/US2702549A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • A61B5/150206—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
    • A61B5/150374—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
    • A61B5/151—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
    • A61B5/151—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

Definitions

  • the invention consists of an instrument for securing samples of blood from the human or animal body as required by persons engaged in medical, nursing, hospital or laboratory practice for the purpose of examination or testing. It is superior to other instruments now used for the same purpose in that it accomplishes the object for which it is designed in one single operation and does not require as much manual dexterity and steadiness. It consists of a handle 1 attached to or otherwise a part of piston (simple rod) 2, having a puncturing needle 4 attached to or otherwise made a part of the piston or rod at the lower extremity thereof.
  • the piston or rod is inclosed in a cylinder 3 with such precision as to create a suction in the cylinder below the piston when it is drawn outward from the cylinder.
  • a diagram or drawing of the instrument in elevation is annexed hereto. It may be constructed or made out of glass, plastic or metal or some of the various parts of the instrument may be made out of one of these materials and other parts out of another of these materials.
  • the instrument will be used as follows: To take a specimen of blood the extremity of the instrument to which the puncturing needle is attached is pressed against a selected area of skin surface; at the same time the lower end of the outer cylinder is held with one hand firmly against this surface While by the other hand the piston is drawn outward withdrawing the puncturing needle from the flesh and at the same time creating a suction in the cylinder which causes a quantity of blood as desired to flow into the cylinder.
  • An instrument for securing samples of blood comprising a cylinder having both ends open, a tightly fitting piston that is longer than the cylinder fitted therein, said piston having an operating handle at one end and a fine puncturing needle of greatly reduced diameter than the piston at the opposite end and extending axially thereof whereby the instrument end having the needle may be firmly pressed against a selected area of the patients skin forming an air tight seal between the skin and the open end of the cylinder, the piston may then be actuated first to thrust the needle into the patients skin, then retracted to withdraw blood from the so punctured area into the cylinder.

Description

Feb. 22, 1955 R NpB A EHR ET AL 2,702,549
' INSTRUMENT I Filed Nov. 12. 1953 INVENTORS.
' mutfi 48% MM United States Patent 2,702,549 INSTRUMENT Robert N. Baehr, New Rochelle, and Chester L. Valent, New York, N. Y.
Application November 12, 1953, Serial No. 391,531 1 Claim. (Cl. 128-278) The invention consists of an instrument for securing samples of blood from the human or animal body as required by persons engaged in medical, nursing, hospital or laboratory practice for the purpose of examination or testing. It is superior to other instruments now used for the same purpose in that it accomplishes the object for which it is designed in one single operation and does not require as much manual dexterity and steadiness. It consists of a handle 1 attached to or otherwise a part of piston (simple rod) 2, having a puncturing needle 4 attached to or otherwise made a part of the piston or rod at the lower extremity thereof. The piston or rod is inclosed in a cylinder 3 with such precision as to create a suction in the cylinder below the piston when it is drawn outward from the cylinder. A diagram or drawing of the instrument in elevation is annexed hereto. It may be constructed or made out of glass, plastic or metal or some of the various parts of the instrument may be made out of one of these materials and other parts out of another of these materials.
The instrument will be used as follows: To take a specimen of blood the extremity of the instrument to which the puncturing needle is attached is pressed against a selected area of skin surface; at the same time the lower end of the outer cylinder is held with one hand firmly against this surface While by the other hand the piston is drawn outward withdrawing the puncturing needle from the flesh and at the same time creating a suction in the cylinder which causes a quantity of blood as desired to flow into the cylinder.
We claim:
An instrument for securing samples of blood comprising a cylinder having both ends open, a tightly fitting piston that is longer than the cylinder fitted therein, said piston having an operating handle at one end and a fine puncturing needle of greatly reduced diameter than the piston at the opposite end and extending axially thereof whereby the instrument end having the needle may be firmly pressed against a selected area of the patients skin forming an air tight seal between the skin and the open end of the cylinder, the piston may then be actuated first to thrust the needle into the patients skin, then retracted to withdraw blood from the so punctured area into the cylinder.
References Cited in the file of this patent UNITED STATES PATENTS Sweet Dec. 3, 1912
US391531A 1953-11-12 1953-11-12 Instrument Expired - Lifetime US2702549A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US391531A US2702549A (en) 1953-11-12 1953-11-12 Instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US391531A US2702549A (en) 1953-11-12 1953-11-12 Instrument

Publications (1)

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US2702549A true US2702549A (en) 1955-02-22

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Family Applications (1)

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US391531A Expired - Lifetime US2702549A (en) 1953-11-12 1953-11-12 Instrument

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507077A1 (en) * 1981-06-04 1982-12-10 Labarthe Jean Christophe BLOOD MICROPREVIRON INSTRUMENT
US4781699A (en) * 1986-02-08 1988-11-01 Nissho Corportion Mucus-removing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1045906A (en) * 1911-07-21 1912-12-03 Welcome F Sweet Bloat-needle.
US2626604A (en) * 1951-03-19 1953-01-27 John C Nadeau Hypodermic syringe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1045906A (en) * 1911-07-21 1912-12-03 Welcome F Sweet Bloat-needle.
US2626604A (en) * 1951-03-19 1953-01-27 John C Nadeau Hypodermic syringe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507077A1 (en) * 1981-06-04 1982-12-10 Labarthe Jean Christophe BLOOD MICROPREVIRON INSTRUMENT
EP0067726A1 (en) * 1981-06-04 1982-12-22 Jean-Christophe Labarthe Blood microsampling device
US4781699A (en) * 1986-02-08 1988-11-01 Nissho Corportion Mucus-removing device

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