US1263793A - Hypodermic needle. - Google Patents

Hypodermic needle. Download PDF

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Publication number
US1263793A
US1263793A US85358814A US1914853588A US1263793A US 1263793 A US1263793 A US 1263793A US 85358814 A US85358814 A US 85358814A US 1914853588 A US1914853588 A US 1914853588A US 1263793 A US1263793 A US 1263793A
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United States
Prior art keywords
needle
hypodermic needle
blunt
pennsylvania
stopper
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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
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US85358814A
Inventor
Harry K Mulford
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H K MULFORD Co
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H K MULFORD Co
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Application filed by H K MULFORD Co filed Critical H K MULFORD Co
Priority to US85358814A priority Critical patent/US1263793A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3286—Needle tip design, e.g. for improved penetration

Definitions

  • One object of my invention is to provide a novel form of hypodermic needle particularly of the type employed in connection with the administration of antitoxin or other serums, which shall be of such construction as to permit of its being easily cleaned and at the same time have its parts so formed as to minimize the likelihood of its wrong end being accidentally inserted in the serum or other container in which it is used.
  • the figure is a side elevation of a'hypo dermic needle constructed according to my invention.
  • FIG. 1 represents the tubular body of the needle which at or adjacent its central portion is provided with an enlarged disk-like flange 2 having a milled peripheral portion 3 to facilitate its being grasped and held.
  • One end of the needle is cut off at a relatively acute angle to form a sharply beveled point 4:, while the opposite end is closed, although adjacent it the needle has two oppositely placed side openings 5.
  • the closed end is formed with a relatively blunt extremity 6 and under conditions of use is designed for insertion through the stopper or sealed end of a serum or other container, the needle being forced through the stopper for a sufiicient distance to permit the side openings 5-5 to open within the container and receive the liquid therefrom when this is forced out.
  • the needle In using the needle it is grasped by its central enlargement 2 and its relatively blunt end is forced through the stopper in one of the closed or sealed ends of a container from which the serum or other liquid is forced, either by a piston or by air under pressure, out through the needle whose pointed end is designed to be inserted in the patient in the well known manner.
  • the form of my invention shown possesses the advantage that the small piece of material punched from the stopper or seal by the insertion of the needle cannot enter the passage of the latter owing to the disposition of the openings in the side, and while the extremity 6 is shown as bluntly pointed, it obviously may be rounded or made in some other blunt form without departing from my invention.
  • hypodermic needle in the form of a tube pointed at one end and relatively blunt at the opposite end, said blunt end being formed with two oppositely disposed outwardly flaring depressions opening into the channel of the needle adjacent its blunt extremity.

Description

H. K. MULFORD.
HYPODERMIC NEEDLE APPLICATION FILED 1ULY28,1914.
1 ,fififi m Patented Apr. 23 1918,
HARRY K. MULFQRD, OF WAYNE, PENNSYLVANIA, ASSIGNOR T0 H. K. M'ULFOBD COM- .PANY, 0F PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.
' I-IYPODERMIC NEEDLE.
Specification of Letters Patent.
Patented Apr. 23, 11min.
Application filed July 28, 1914. Serial No. 853,588.
To all whom it may concern:
Be it known that I, HARRY K. MULroRD, a citizen of the United States, residing in Wayne, Delaware county, State of Pennsylvania, have invented certain Improvements in Hypodermic Needles, of which the following is a specification.
One object of my invention is to provide a novel form of hypodermic needle particularly of the type employed in connection with the administration of antitoxin or other serums, which shall be of such construction as to permit of its being easily cleaned and at the same time have its parts so formed as to minimize the likelihood of its wrong end being accidentally inserted in the serum or other container in which it is used.
These objects and other advantageous ends I secure as hereinafter set forth, reference being had to the accompanying drawings, in which:
The figure is a side elevation of a'hypo dermic needle constructed according to my invention.
In the above drawings 1 represents the tubular body of the needle which at or adjacent its central portion is provided with an enlarged disk-like flange 2 having a milled peripheral portion 3 to facilitate its being grasped and held. One end of the needle is cut off at a relatively acute angle to form a sharply beveled point 4:, while the opposite end is closed, although adjacent it the needle has two oppositely placed side openings 5. It is noted that the closed end is formed with a relatively blunt extremity 6 and under conditions of use is designed for insertion through the stopper or sealed end of a serum or other container, the needle being forced through the stopper for a sufiicient distance to permit the side openings 5-5 to open within the container and receive the liquid therefrom when this is forced out.
In using the needle it is grasped by its central enlargement 2 and its relatively blunt end is forced through the stopper in one of the closed or sealed ends of a container from which the serum or other liquid is forced, either by a piston or by air under pressure, out through the needle whose pointed end is designed to be inserted in the patient in the well known manner.
The form of my invention shown possesses the advantage that the small piece of material punched from the stopper or seal by the insertion of the needle cannot enter the passage of the latter owing to the disposition of the openings in the side, and while the extremity 6 is shown as bluntly pointed, it obviously may be rounded or made in some other blunt form without departing from my invention.
I claim A hypodermic needle in the form of a tube pointed at one end and relatively blunt at the opposite end, said blunt end being formed with two oppositely disposed outwardly flaring depressions opening into the channel of the needle adjacent its blunt extremity.
In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.
HARRY K. MULFORD.
Witnesses ARTHUR J. Ponssnnn, WILLIAM E. BRADLEY.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,
ashington, I). G
US85358814A 1914-07-28 1914-07-28 Hypodermic needle. Expired - Lifetime US1263793A (en)

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US85358814A US1263793A (en) 1914-07-28 1914-07-28 Hypodermic needle.

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US85358814A US1263793A (en) 1914-07-28 1914-07-28 Hypodermic needle.

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448898A (en) * 1945-04-21 1948-09-07 Marshall L Lockhart Hypodermic needle
US2653607A (en) * 1950-09-16 1953-09-29 Ayerst Mckenna & Harrison Injection apparatus
US2707466A (en) * 1951-07-18 1955-05-03 Cook Waite Lab Inc Hypodermic syringe
US2876768A (en) * 1952-12-26 1959-03-10 Howard C Schultz Pressure-vacuum clysis unit
US5364387A (en) * 1993-08-02 1994-11-15 Becton, Dickinson And Company Drug access assembly for vials and ampules

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448898A (en) * 1945-04-21 1948-09-07 Marshall L Lockhart Hypodermic needle
US2653607A (en) * 1950-09-16 1953-09-29 Ayerst Mckenna & Harrison Injection apparatus
US2707466A (en) * 1951-07-18 1955-05-03 Cook Waite Lab Inc Hypodermic syringe
US2876768A (en) * 1952-12-26 1959-03-10 Howard C Schultz Pressure-vacuum clysis unit
US5364387A (en) * 1993-08-02 1994-11-15 Becton, Dickinson And Company Drug access assembly for vials and ampules

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