US16479A - Spbiwor-lalsrcet - Google Patents

Spbiwor-lalsrcet Download PDF

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Publication number
US16479A
US16479A US16479DA US16479A US 16479 A US16479 A US 16479A US 16479D A US16479D A US 16479DA US 16479 A US16479 A US 16479A
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Prior art keywords
lancet
shield
spring
side
screw
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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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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150503Single-ended needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/15003Source of blood for venous or arterial blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150442Blade-like piercing elements, e.g. blades, cutters, knives, for cutting the skin
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S206/00Special receptacle or package
    • Y10S206/811Waterproof

Description

UNITED STATES PATENT OEEIOE.

JAMES W. W. GORDON, OE GATONSVILLE, MARYLAND.

SPRING-LANCET.

Specification of Letters Patent No.

To all whom it may concern:

Be it known that I, JAS. WV. WV. GORDON, of Catonsville, in the county of Baltimore and State of Maryland, have invented certain new and useful Improvements in Spring-Lancets; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification.

The nature of my improvement of the ordinary 'spring lancet consists in so providing it with a shield, that a certainty of depth in the incision shall be secured and thus all danger of t-ransiixing the vein is obviated, the movable shield serving also as a means of giving the same depth to the cut of the fleam when new, as after repeated sharpenings, its simplicity preventing any liability of accident, and t-he expense of construetion is very slightly increased over those now in use. The lancet being constructed independent of the shield, in which it slides and being confined therein by a set screw, it will be noticed that the blade will enter the vein atthe same angle irrespective of the depth to which the instrument is regulated, and should t-he set screw accidentally become loose, the only effect would be, that of the lancet retreating from the vein by the sliding thereof in the shields or graduator.

, The trigger differs from those of the ordinary spring lancet by being formed with greater breadth and in the number of notches; the object thereof being that of overcoming a difficulty which would otherwise result of obtaining sufficient force of the main spring in bleeding shallow. In that case the handle of the spring is drawn back to the farthest notch, and to the shoulder of the lancet frame; then the mainspring will have its tension.

In the accompanying drawings Figure l, shows the side of the shield with its set screw retaining the lancet frame (see in red dotted line) as drawn toward the back 16,479, dated January 2'?, 1857.

edge of the shield, the ileam in this case will cut shallow. In Fig. 2, the frame is slid across the shield (within which it lies) to the front edge, and in that case the fleam will cut deeply. Fig. 3 is a top view with the slide removed. Fig. 4 is a top and edge view o-f the shield; Fig. 5, a. top and side view of the slide exhibiting the trigger.

The shield (a a) is formed of metal and of a suiicient width to allow the lancet frame Z) to be moved from side to side thereof. A slot or opening (c c) is made in it, for the purpose of allowing the neck of the set screw (CZ) to pass through it; a nut or female screw is formed in the thickness of the lancet frame to fit the screw of (l). The fieam and springs are of the character usually employed in spring lancets, and the lancet is closed within the shield by the slide (e) in the usual manner of such lancets.

(f) is the trigger made broad at its catch end, so as to receive 3 or 4E nicks instead of one to accommodate the change of the spring as the lancet frame is moved from side to side of the shield.

The mode of employing the shield in regulating the depth will readily be understood and its use as a gage for the cut o-f the lancet is important. The lancet and shield after the set screw is tightened is held to the vein in the same manner as the ordinary spring lancet, and the trigger liberated by pressing thereon.

I-Iaving described my improvement what I desire to secure by Letters Patent is The providing the ordinary spring lancet with a sliding shield a a having a movement from side to side in the manner and for the purposes set forth.

In testimony whereof I have signed my name before two witnesses.

J. W. lV. GORDON.

' lVitnesses:

J oI-IN F. CLARK, JOHN S. HOLLINGSHEAD.

US16479A Spbiwor-lalsrcet Expired - Lifetime US16479A (en)

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Publication Number Publication Date
US16479A true US16479A (en) 1857-01-27

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US16479A Expired - Lifetime US16479A (en) Spbiwor-lalsrcet

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230118A (en) * 1977-08-05 1980-10-28 Holman Rury R Automatic lancet
US4905857A (en) * 1988-06-09 1990-03-06 Her Ming L Portable diving box
US20050057873A1 (en) * 2003-09-12 2005-03-17 Nobutaka Kitagawa Semiconductor device having a protection circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230118A (en) * 1977-08-05 1980-10-28 Holman Rury R Automatic lancet
US4905857A (en) * 1988-06-09 1990-03-06 Her Ming L Portable diving box
US20050057873A1 (en) * 2003-09-12 2005-03-17 Nobutaka Kitagawa Semiconductor device having a protection circuit

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