US59306A - Improvement in artificial leeches - Google Patents

Improvement in artificial leeches Download PDF

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Publication number
US59306A
US59306A US59306DA US59306A US 59306 A US59306 A US 59306A US 59306D A US59306D A US 59306DA US 59306 A US59306 A US 59306A
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Prior art keywords
rod
end
piston
pricker
cap
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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
    • A61B5/153Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • 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
    • A61B5/150206Construction 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
    • A61B5/00Detecting, measuring or recording 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

Description

FREDKWOLFF, oF NEW YORK, N. Y.

IMPROVEMENT IN ARTIFICIAL LEEvCHS.

Specilication forming part of Letters Patent No. 59,306. dated October 30, 1866.

To all whom t may concer-n.:

Be it known that I, FREDERICK WoLFF,

ot' the city and county of New York, State of New York, have invented a new Artificial Leech 5 and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is an exterior view of the instrument when contracted. Fig. 2 shows the instrument extended. Figs. 3 and 4 are sectional views of the instrument. Fig. 5 is a perspective View of. the same ready for use. Figs. 6 and 7 are end views of the instrument. Figs. 8 and 9 are viewsoi'an instrument which ma-y v be used as auxiliary to the artiticial leech.

stand my invention, I will describe its con struction and operation.

In the accompanying drawings, Arepresents the barrel oi' the exhausting-pump, which may be made of any suitable diameter and length, and which is open at one end and closed at the other end by means of a screw-cap, a, through which a hollow piston-rod, B, passes. The rod B 'has a piston, b, applied to its inner end, and a circular cap, C, applied to its outer end thus forming an exhaustingpump, by means of which a vacuum can be formed and blood drawn from the body.

Within the hollow piston-rod B is a pricker, o, which is formed on the end of a rod, G, which passes loosely through the center of the cap (l and through the center of the piston b, as shown in Figs. 3 and 4. This pricker-rod projects beyond the cap C, and has a buttonhead, d, applied on its outer end, and near the opposite end of this rod G a iiat button, g, is secured to it, which is of 4such diameter as to work loosely within the *hollow piston-rod B, and to serve as a centerin g-guide for the lower end ot' the rod G. Between'this button g and the screw-cap C a spring, c, is coiled around the rod G, which spring is compressed when' this rod is partially withdrawn from the cap C, as shown in Fig. 4, and, by its recoil, the pricker-rod will be quickly shot b ack to its pla-ce, as shownfin Fig. 3. To prevent any unpleasant noise and jar when the rod G is released after its spring has been compressed, I employ a button, of india-rubber, 7L, which is slipped over the sharpened end of the pricker-l rod,'so as to form an elastic cushion between the button g and the inner end of the pistonhead.

A nger-latch, D, is pivoted to the cap C, and acted upon by a spring, D, which forces the latch against the rod G. When this rod G has been drawn out a sufficient distance from the hollow rod B, the catch t will enter an annular groove, j, which is made in the pricker-rod, and arrest this rod 5 then, by press ing gently upon the outer end of the latch D,

the pricker-rod can be released, so as to al low the spring e to act upon it, as above nientioned.

rIhel pricker is constructed with three outi ting-edges, resembling the trunk of the comA mon leech used for bleeding, so that the wound made by it shall bleed freely, and also admit of being closed when a sufficient quantity of blood has been taken.

The depth of puncture can be readily adjusted by means of the sliding piston-rod -to which the pricker-rod is applied, and immedi-v ately after the wound has been made this pis ton-rod is drawn out slowly, so as to produce a vacuum in the barrel A, and thus draw blood from the wound. When the barrelAhas'thus been iilled with blood, it is removed from the wound, and if more blood is to'be. taken, a`

small air-pump, J, can afterward be used.

I do not desire to conne my invention to the precise construction of the instrument I claim as new, and desire to sccure'by-Let-A ters Patent, is-

1. The construction of the mechanical leech with a lancet or puncturing device, and with a suction-piston, in such manner that thelancet can be raised and set independently et' the piston operated to pun cture the skin, and then both the lancet and piston raised together, so as to draw the blood Within the same air-pump tube, A, in which the lancet and piston are arranged, all substantially in the mannen described. Y

2. The elastic cushion 7L, in combination with the stop b, substantially in the manner and for the purpose described.

3. Extending the lancet-handle through theV FREDR. WOLFF.

Ti tnesscs:

L. L. ARNOLD, R. KOERBER.

US59306A Improvement in artificial leeches Expired - Lifetime US59306A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503856A (en) * 1981-06-29 1985-03-12 Sherwood Medical Company Lancet injector
US4895147A (en) * 1988-10-28 1990-01-23 Sherwood Medical Company Lancet injector
US20050049522A1 (en) * 2002-10-30 2005-03-03 Allen John J Method of lancing skin for the extraction of blood
US20050089861A1 (en) * 2002-10-30 2005-04-28 Allen John J. Method of lancing skin for the extraction of blood
US20050284773A1 (en) * 2004-06-29 2005-12-29 Allen John J Method of preventing reuse in an analyte measuring system
US20050284757A1 (en) * 2004-06-29 2005-12-29 Allen John J Analyte measuring system which prevents the reuse of a test strip
US20060030789A1 (en) * 2003-03-28 2006-02-09 Allen John J Integrated lance and strip for analyte measurement
US7169117B2 (en) 2003-03-28 2007-01-30 Lifescan, Inc. Integrated lance and strip for analyte measurement

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503856A (en) * 1981-06-29 1985-03-12 Sherwood Medical Company Lancet injector
US4895147A (en) * 1988-10-28 1990-01-23 Sherwood Medical Company Lancet injector
US20050049522A1 (en) * 2002-10-30 2005-03-03 Allen John J Method of lancing skin for the extraction of blood
US20050089861A1 (en) * 2002-10-30 2005-04-28 Allen John J. Method of lancing skin for the extraction of blood
US20060030789A1 (en) * 2003-03-28 2006-02-09 Allen John J Integrated lance and strip for analyte measurement
US7169117B2 (en) 2003-03-28 2007-01-30 Lifescan, Inc. Integrated lance and strip for analyte measurement
US20050284773A1 (en) * 2004-06-29 2005-12-29 Allen John J Method of preventing reuse in an analyte measuring system
US20050284757A1 (en) * 2004-06-29 2005-12-29 Allen John J Analyte measuring system which prevents the reuse of a test strip

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