GB2416698A - Single use syringe with needle cover - Google Patents

Single use syringe with needle cover Download PDF

Info

Publication number
GB2416698A
GB2416698A GB0417339A GB0417339A GB2416698A GB 2416698 A GB2416698 A GB 2416698A GB 0417339 A GB0417339 A GB 0417339A GB 0417339 A GB0417339 A GB 0417339A GB 2416698 A GB2416698 A GB 2416698A
Authority
GB
United Kingdom
Prior art keywords
needle
plunger
syringe
needle cover
break point
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.)
Withdrawn
Application number
GB0417339A
Other versions
GB0417339D0 (en
Inventor
Tyrone Michael Meadows
Steve Skubala
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 GB0417339A priority Critical patent/GB2416698A/en
Publication of GB0417339D0 publication Critical patent/GB0417339D0/en
Publication of GB2416698A publication Critical patent/GB2416698A/en
Withdrawn legal-status Critical Current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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/5066—Means for preventing re-use by disconnection of piston and piston-rod
    • 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
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user

Landscapes

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

Abstract

A syringe which has a movable needle cover 3. Preferably the plunger shaft 6 has a break point 5 which breaks under pressure. The needle cover 3 may have a spring 2 which is retracted for use. The break point 5 may collapse and break as the plunger 4 is depressed preventing re-use.

Description

Synnge This invention relates to a syringe that can only be used once and
has a moveable spring loaded cover over the needle.
An object of this invention is to keep the needle covered before and after use.
The plunger shaft will be used to load the syringe, but will break as the syringe emptied.
Preferably the syringe is made of clear plastic and metal for the needle and spring.
The invention will now be described solely by way of example and with reference to the accompanying drawing in which: Figure 1: Shows the syringe empty position, with the needle covered, and with the break point intact.
Figure 2: Shows the syringe empty position, with the needle exposed, and with the break point intact.
Figure 3: Shows the syringe loaded position, with the needle exposed, and with the break point intact.
Figure 4: Shows the syringe loaded position, with the needle exposed, and with the break point compressed.
Figure 5: Shows the syringe empty position, with the needle exposed, and with the break point collapsed.
Figure 6: Shows the syringe empty position, with the needle covered, and with the break point broken.
In figure 1 it shows the needle cover 3 covering the needle 1, with the spring 2 at full stretch. The plunger 4 is in the empty position in the barrel 7, with the break point 5 intact, connecting the plunger 4 and the plunger shaft 6 In figure 2 it shows the needle cover 3 pulled back, exposing the needle 1, with the spring 2 now compressed. The plunger 4 is in the empty position of the barrel 7, with the break point 5 intact, connecting the plunger 4 and the plunger shaft 6.
In figure 3 it shows the needle cover 3 pulled back, exposing the needle 1, with the spring 2 compressed. The plunger 4 is now in the loaded position of the barrel 7, and with the break point 5 intact connecting the plunger 4 and the plunger shaft 6.
In figure 4 it shows the needle cover 3 pulled back, exposing the needle 1, with the spring 2 compressed. The plunger 4 is being depressed, to expel the load from the barrel 7, break point 5 is beginning to collapse under pressure, the plunger 4 and the plunger shaft 6 still connected.
In figure 5 it shows the needle cover 3 pulled back, exposing the needle 1, with the spring 2 compressed. The plunger 4 in the empty position of the barrel 7, the break point 5 totally collapsed, causing it to break, separating the plunger 4 from the plunger shaft 6.
In figure 6 it shows the needle cover 3 covering the needle 1, and the spring 2 at full stretch. The plunger 4 in the empty position of the barrel 7, the break point 5 broken, the plunger 4 separate form the plunger shaft 6.

Claims (2)

  1. Claims 1. A syringe that has a moveable cover over the needle.
  2. 2. A syringe according to claim 1 in which the plunger shaft break point is broken under pressure.
GB0417339A 2004-08-04 2004-08-04 Single use syringe with needle cover Withdrawn GB2416698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0417339A GB2416698A (en) 2004-08-04 2004-08-04 Single use syringe with needle cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0417339A GB2416698A (en) 2004-08-04 2004-08-04 Single use syringe with needle cover

Publications (2)

Publication Number Publication Date
GB0417339D0 GB0417339D0 (en) 2004-09-08
GB2416698A true GB2416698A (en) 2006-02-08

Family

ID=32982491

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0417339A Withdrawn GB2416698A (en) 2004-08-04 2004-08-04 Single use syringe with needle cover

Country Status (1)

Country Link
GB (1) GB2416698A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8287491B2 (en) 2008-11-26 2012-10-16 Becton, Dickinson And Company Single-use auto-disable syringe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE543747C2 (en) * 2019-11-06 2021-07-13 Krui Ab Plunger rod and syringe adapted for compression failure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202747A (en) * 1987-01-17 1988-10-05 Dr William Ducat Syringes
EP0397948A1 (en) * 1988-01-07 1990-11-22 Carlos V. Martinez Gimeno Auto-destructable syringe
US5047017A (en) * 1987-06-25 1991-09-10 Agven Medical Corporation Limited Syringe
GB2315022A (en) * 1995-04-20 1998-01-21 Napoleon Curie A single use syringe
CA2229911A1 (en) * 1998-02-19 1999-08-19 Michael S.J. Baxter Non-reusable medical syringe
US6203529B1 (en) * 1997-11-19 2001-03-20 B D Medico Needle arrangement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202747A (en) * 1987-01-17 1988-10-05 Dr William Ducat Syringes
US5047017A (en) * 1987-06-25 1991-09-10 Agven Medical Corporation Limited Syringe
EP0397948A1 (en) * 1988-01-07 1990-11-22 Carlos V. Martinez Gimeno Auto-destructable syringe
GB2315022A (en) * 1995-04-20 1998-01-21 Napoleon Curie A single use syringe
US6203529B1 (en) * 1997-11-19 2001-03-20 B D Medico Needle arrangement
CA2229911A1 (en) * 1998-02-19 1999-08-19 Michael S.J. Baxter Non-reusable medical syringe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8287491B2 (en) 2008-11-26 2012-10-16 Becton, Dickinson And Company Single-use auto-disable syringe
US9205205B2 (en) 2008-11-26 2015-12-08 Becton, Dickinson And Company Single-use auto-disable syringe

Also Published As

Publication number Publication date
GB0417339D0 (en) 2004-09-08

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)