US486057A - Burroughs and henry solomon wellcome - Google Patents

Burroughs and henry solomon wellcome Download PDF

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US486057A
US486057A US486057DA US486057A US 486057 A US486057 A US 486057A US 486057D A US486057D A US 486057DA US 486057 A US486057 A US 486057A
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piston
burroughs
solomon
henry
wellcome
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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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M5/31513—Piston constructions to improve sealing or sliding

Definitions

  • My invention relates to an improved hypodermie syringe, the object of same being to provide means for the protection of the graduated glass body, such means enabling, also, the needle and cap to be readily attixed to the body of the instrument, and also to construct the piston and connected parts in such a manner that they may be readily adjusted and removed for cleaning purposes.
  • FIG. 2 is a longitudinal section of same.
  • Fig. 3 is a cross-section taken on the line fr x, Fig. 2, and
  • Fig. 4 is asimilar section taken on the line y y, Fig. 2.
  • the syringe is provided with the usual graduated glass body a, and over this I place a light metal casing b,havinga cutaway face and back, as shown, so as to expose the glass body and its contents, or one face only may be out away, or the casing may be made open in parts otherwise than as shown in the drawings.
  • This casing aords a protection to the glass body a, and also, as will be seen by reason of its tapered end or nozzle c, affords a means of aflixing the usual cap d and needle e, Which are slipped upon the saine instead of, as usual, upon the tapered end of the glass body.
  • the piston and rods may be removed, and by removing the nut 7c and handle m the rodj may be removed from the piston 7L for cleaning or other purposes.
  • a syringe comprising a protectingecasing having a cut-away portion, a nozzle and retaining-cap secu red to the casin g, a glass body titting the casing, having a reduced end, and a Washer interposed between the reduced end of the body and casing, substantially as described.
  • a syringe comprising a protecting-casing having cut-away portions, a nozzle and retaining-cap connected to the casing, a glass body ⁇ itting the casing, a tubular pistonu'od having a contracted portion and carrying a compressible piston, a screw-rod sliding in said piston and having a flattened face corresponding to the contracted portion of the piston-rod, a cap, and an adjusting nut and handle, substantially as described.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Description

(No Model.)
S. R. SLATER. HYPODERMIG SYRINGB.
No. 486,05*?. Patented Nov. 8, 1892.
UNITED STATES PATENT OEEICE.
MAINEVILLE BURROUGHS AND HENRY SOLOMON SAME PLACE.
W'ELLOOME, OF
HYPODERMIC SYRINGE.
SPECIFICATION forming part of Letters Patent No. 486,057, dated November 8, 1892.
Application filed June 8, 1892. Serial No. 435,990- (No model.)
T0 all whom t may concern:
Be it known thatI, STANLEY READ SLA'rER, a subject of Her Majesty the Queen of Great Britain, residing at Clapton, London, in the county of Middlesex, England, have invented a certain new and useful Improved Hypodermic Syringe, of which the following is a speciiication.
My invention relates to an improved hypodermie syringe, the object of same being to provide means for the protection of the graduated glass body, such means enabling, also, the needle and cap to be readily attixed to the body of the instrument, and also to construct the piston and connected parts in such a manner that they may be readily adjusted and removed for cleaning purposes.
My invention is illustrated in the accompanying drawings, in which- Figure lis an elevation of my improved syringe. Fig. 2 is a longitudinal section of same. Fig. 3 is a cross-section taken on the line fr x, Fig. 2, and Fig. 4 is asimilar section taken on the line y y, Fig. 2.
The syringe is provided with the usual graduated glass body a, and over this I place a light metal casing b,havinga cutaway face and back, as shown, so as to expose the glass body and its contents, or one face only may be out away, or the casing may be made open in parts otherwise than as shown in the drawings. This casing aords a protection to the glass body a, and also, as will be seen by reason of its tapered end or nozzle c, affords a means of aflixing the usual cap d and needle e, Which are slipped upon the saine instead of, as usual, upon the tapered end of the glass body. In place of this tapered end I make the glass body with a blunt or cut-oit' end, as shown, and place around the contraction of same a rubber or like ring or washer-f, which prevents the glass from moving about in the casing. The glass is retained in the casing bymeans of a cap g, which is screwed onto this latter. The cap g has a passage through same, through which passes the tubular piston-rod 7L, said piston-rod carrying a rubber or other piston 'L' and a rod j, having a cap l. This rod j must be prevented from turning in the piston h, and to accomplish this I prefer to remove a portion of the metal of the rod j, so as to form a flat face, as clearly shown in Figs. 2, 3,and l,and to pinch up the tubular piston h at the point h', as shown, so that while capable of sliding therein the rod is not able to turn. The other end ot the rod is screwed and carries a nutkandatits extreme end a suitable handle m. The nut 7o abuts against the piston h, and it will be seen that by turning same the rod j will be raised or lowered and the piston i be consequently compressed or released, so` that its tightness in the glass body may be regulated.
By unscrewing the cap g the piston and rods may be removed, and by removing the nut 7c and handle m the rodj may be removed from the piston 7L for cleaning or other purposes.
What I claim is l. A syringe comprising a protectingecasing having a cut-away portion, a nozzle and retaining-cap secu red to the casin g, a glass body titting the casing, having a reduced end, and a Washer interposed between the reduced end of the body and casing, substantially as described.
2. A syringe comprising a protecting-casing having cut-away portions, a nozzle and retaining-cap connected to the casing, a glass body {itting the casing, a tubular pistonu'od having a contracted portion and carrying a compressible piston, a screw-rod sliding in said piston and having a flattened face corresponding to the contracted portion of the piston-rod, a cap, and an adjusting nut and handle, substantially as described.
In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.
STANLEY READ SLATER.
Witnesses:
ALLEN PARRY JONES, JAMES BoLEs.
US486057D Burroughs and henry solomon wellcome Expired - Lifetime US486057A (en)

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