GB2076294A - Hypodermic syringe - Google Patents

Hypodermic syringe Download PDF

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Publication number
GB2076294A
GB2076294A GB8115603A GB8115603A GB2076294A GB 2076294 A GB2076294 A GB 2076294A GB 8115603 A GB8115603 A GB 8115603A GB 8115603 A GB8115603 A GB 8115603A GB 2076294 A GB2076294 A GB 2076294A
Authority
GB
United Kingdom
Prior art keywords
syringe
plunger
tube
fitting
rod
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.)
Granted
Application number
GB8115603A
Other versions
GB2076294B (en
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
Original Assignee
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB8115603A priority Critical patent/GB2076294B/en
Publication of GB2076294A publication Critical patent/GB2076294A/en
Application granted granted Critical
Publication of GB2076294B publication Critical patent/GB2076294B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M2005/2006—Having specific accessories
    • A61M2005/2013—Having specific accessories triggering of discharging means by contact of injector with patient body

Landscapes

  • 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)

Abstract

A fitting for a syringe 10 to enable someone to anaesthetise an animal safely, even if the animal is savage or frightened, comprises a tubular plastics barrel 1 about 1 metre long and about @ centimetres in diameter, and an internal rod plunger 2 which is normally flush with the lower end of the tube but protrudes at the upper end by the stroke of the plunger 3 of a hypodermic syringe 4, the rod plunger 2 being spring-loaded in that position by a helical compression spring 5. A cap at the upper end of the tube defines a bearing for the rod 2. At the lower end a second cap 7 acts through a sealing washer 8 to hold the barrel of the syringe against the lower end of the tube 1 and has a hole through which the syringe projects as shown at 9. The rod 2 bears against the plunger of the syringe as shown at 11. It will be clear that the syringe can be used on an animal by someone a metre distant from the animal, merely by pressing on a knob 12 at the upper end of the rod 2. <IMAGE>

Description

SPECIFICATION Hypodermic syringe This invention relates to hypodermic syringes and one object is to provide fitting for a syringe to enable someone to anaesthetise an animal safely, even if the animal is savage or frightened According to the invention a fitting for a hypodermic syringe comprises a first elongate member slidably mounted in relation to a second elongate member in which one end of each of the first and second members is adapted to engage the plunger or barrel respectively of a hypodermic syringe and in which the first and second members are spring loaded together. Preferably the first member is telescopically mounted within the second member.
Conveniently the second member comprises a tube and the first member comprises a plunger having its other end extending from the tube, and including a helical spring surrounding the end of the plunger extending from the tube, which spring acts to resist movement of the plunger into the tube. One end of the tube can be adapted to engage the barrel of a syringe by an end cap and seal, and the one end of the first member comprising the plunger is adapted to engage the plunger of a syringe by bearing against the end of the syringe plunger.
The members might be between 0 5 and 1 5 metres long so that an animal can be injected without the user having to get very close to the animal.
The invention may be carried into practice in various ways and one embodiment will be described by way of example with reference to the accompanying drawing, of which the single figure is a perspective view and a detail of a fitting according to the invention.
The fitting comprises a tubular plastics barrel 1 about 1 metre long and about 2 centimetres in diameter, and an internal rod plunger 2 which is normally flush with the lower end of the tube but protrudes at the upper end by the stroke of the plunger 3 of a hypodermic syringe 4, the rod plunger 2 being springloaded in that position by a helical compression spring 5. A cap at the upper end of the tube defines a bearing for the rod 2.
At the lower end a second cap 7 acts through a sealing washer 8 to hold the barrel of the syringe against the lower end of the tube 1 and has a hole through which the syringe projects as shown at 9. The rod 2 bears against the plunger of the syringe as shown at 11.
It will be clear that the syringe can be used on an animal by someone a metre distant from the animal, merely by pressing on a knob 12 at the upper end of the rod 2.

Claims (7)

1. A fitting for a hypodermic syringe comprising a first elongate member slidably mounted in relation to a second elongate member in which one end of each of the first and second members is adapted to engage the plunger or barrel respectively of a hypodermic syringe and in which the first and second members are spring loaded together.
2. A fitting as claimed in Claim 1 in which the first member is telescopically mounted within the second member.
3. A fitting as claimed in Claim 2 in which the second member comprises a tube and the first member comprises a plunger having its other end extending from the tube, and including a helical spring surrounding the end of the plunger extending from the tube, which spring acts to resist movement of the plunger into the tube.
4. A fitting as claimed in Claim 3 in which the one end of the tube is adapted to engage the barrel of a syringe by an end cap and seal, and the one end of the first member comprising the plunger is adapted to engage the plunger of a syringe by bearing against the end of the syringe plunger.
5. A fitting as claimed in any preceding claim in which the first and second members are between 0~5 and 1~5 metres long.
6. A hypodermic syringe including a fitting as claimed in any precedin#g claim.
7. A fitting substantially as herein described with reference to and as shown in the accompanying drawing.
GB8115603A 1980-05-22 1981-05-21 Hypodermic syringe Expired GB2076294B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8115603A GB2076294B (en) 1980-05-22 1981-05-21 Hypodermic syringe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8016964 1980-05-22
GB8115603A GB2076294B (en) 1980-05-22 1981-05-21 Hypodermic syringe

Publications (2)

Publication Number Publication Date
GB2076294A true GB2076294A (en) 1981-12-02
GB2076294B GB2076294B (en) 1984-05-16

Family

ID=26275616

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8115603A Expired GB2076294B (en) 1980-05-22 1981-05-21 Hypodermic syringe

Country Status (1)

Country Link
GB (1) GB2076294B (en)

Also Published As

Publication number Publication date
GB2076294B (en) 1984-05-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee