GB2282069A - The integral hypodermic needle guard - Google Patents

The integral hypodermic needle guard Download PDF

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Publication number
GB2282069A
GB2282069A GB9319510A GB9319510A GB2282069A GB 2282069 A GB2282069 A GB 2282069A GB 9319510 A GB9319510 A GB 9319510A GB 9319510 A GB9319510 A GB 9319510A GB 2282069 A GB2282069 A GB 2282069A
Authority
GB
United Kingdom
Prior art keywords
needle
guard
hypodermic needle
spring
needle tip
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Withdrawn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
GB9319510A
Other versions
GB9319510D0 (en
Inventor
Robert Christopher Guy Bracchi
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 GB9319510A priority Critical patent/GB2282069A/en
Publication of GB9319510D0 publication Critical patent/GB9319510D0/en
Publication of GB2282069A publication Critical patent/GB2282069A/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Withdrawn legal-status Critical Current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
    • A61M5/178—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
    • A61M5/3269—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel guided by means not coaxially aligned with syringe barrel, e.g. channel-like member formed on exterior surface of syringe barrel for guiding a pushing rod connected to and displacing needle safety sheath
    • 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
    • A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • A61M2005/3249—Means to disalign the needle tip and the distal needle passage of a needle protection sleeve

Abstract

The integral hypodermic needle guard is a device either produced as a component of a hypodermic needle or one that can be attached to the needle prior to its use. The guard can be used immediately afterwards to cover the hypodermic needle tip and render the needle tip safe. An example is described of a guard G connected to the hub of the needle N by a coiled spring S'. After the needle is removed from the skin the operator releases the coiled spring which is compressed by a locking device (L, Fig. 2b) by depressing button B and extends the guard over the end of the needle. The needle tip is forced into a cleft between the wall of the guard and its end by a straight spring S in the base of the guard. The guard is maintained in position by the force of the extended coiled spring. <IMAGE>

Description

The Integrai Hypodernic Needle Guard A device either a component of a hypodermic needle or a part that can be attached to the hypodermic needle prior to use (integral at time of use) which can be used as a guard to cover the needle tip immediately after use and so prevent any possibility of a needle stick injury.
Needle stick injuries are always a worry for medical staff as such an injury could transmit viral infections With the HIV virus such an injury could cause a life threatening disease.
To prevent such injuries medical staff wear gloves; however the sharp point of the hypodermic needle can easily penetrate these. Needle stick injuries may occur when they try to cover the needle alter use, missing the sheath and pricking their fingers. In the emergency situation staff do not have to resheath or throw away used needles and they can be left lying around with the potential to cause a needle stick injury. Once the needle is thrown away the disposal box might be opened or spilt and a member of staff could be injured whilst tidying up the contents.
The integral Hypodermic Needle Guard was invented to ensure that immediately after blood has been taken the operator can cover the needle tip so preventing any possibility of further needlestick injuries.
The present invention provides a guard attached to the needle which can be used immediately after use to cover and protect the needle tip.
The guard can be a device made of any suitable material which is part of or can be attached to the needle prior to use which can be used by the operator immediately after the needle has been withdrawn from the injection site.
For example a circular sheath is described which encircles the shaft of the needle. The sheath could be made of any suitable material. The sheath has a concave circular disc attached to one end. A hole the diameter ofthe needle is made in one half of the circular disc. The needle passes through the sheath over the metal spring and out through the hole in the disc. The flat part of the needle tip has to be resting at the centre of the disc. The sheath and the disc combined forms the guard. As the guard is pushed over the end ofthe needle a small spring in the base of the guard pushes the needle tip up into the cleft between the disc and the sheath. The guard can be maintained in this position by several methods; for example z coiled spring attached to the hub ofthe needle and to the sheath so when extended the extended coiled spring would pull the guard back on the needle tip.
An example of the Integral Hypodermic Needle Guard with reference to the accompanying drawing in which: Figure la Shows the whole needle plus guard(the outline of the guard is drawn). A coiled spring is attached to the hub of the needle and to the sheath.
Figure ib Shows the sheath extended over the end ofthe needle. A spring in the base of the guard forces the needle tip into the cleft shown. The extended coiled spring will pull back on the guard and maintain the guard in place.
Figure 2a Shows the side view of the needle hub showing a clip mechanism keeping the spring compressed.
Figure 2b Shows the view from the top of the locking mechanism keeping the coiled spring compressed. The spring is released by compressing the button; using the button the guard is advanced by pushing it over the end of the needle against the force of the extended coiled spring.
Figure 3a Shows longitudinal section through the sheath and the needle. Note the spring at the base of the guard and the site of the hole from the front of the guard. The needle has to be positioned so the flat part of the needle tip lies against the middle of the hole at the front of the guard.
Figure 3b Shows a longitudinal section of the needle and the sheath after the sheath has been pushed over the needle tip. The point of the needle is trapped in the cleft between the sheath and the concave disc attached to the base of the sheath.
Referring to the drawing the guard is an integral part of the hypodermic needle so that the operator can push the guard (G in Fig 1) over the end of the needle so that the guard safely covers the point of the hypodermic needle tip.
The guard illustrated in Fig 1 is attached to the needle hub by a spring. The spring is kept compressed by a locking device (L in Fig 2a and 2b). The spring is released by depressing the button (Bin Fig2a and 2b). Once blood has been taken the operator releases the spring by pressing the button. The operator then pushes the guard over the end of the needle tip using the button provided.
The guard illustrated is a cylinder with a concave disc attached to the base at one end.
The needle passes through the sheath and oui through a hole in the concave disc whirh is positioned so that one edge of the hole (H in Fig la and Fig 2a) is at or beyond the centre of the disc. The flat side of the needle tip has to lie next to the central part of the hole.
When the guard is pushed over the tip of the needle the needle tip will slide into the cleft(C in Fig 3a) at the base of the guard The needle is forced into the cleft by the use of a metal spring (S in Fig 3) positioned in the base ofthe guard which maintains the needle in the cleft. The guard is prevented from falling off by the force of the extended coiled spring (s' in fig lb) which pulls the needle back and also keeps the guard in position so that the needle tip is covered and secured.

Claims (4)

Claims
1. A device part of, or attached prior to use to, a hypodermic needle which can be used as a guard to cover the needle tip immediately after use. The device is therefore integral with the hypodermic needle at time of use.
2. The guard as in claim 1 can be made in various shapes of various materials.
3. The guard as claimed in claims 1 and 2 can be maintained in its position over the point of the hypodermic needle by various mechanisms following withdrawal from the injection site.
4. The device as claimed in preceding claims allows the operator to render safe the needle tip without any risk to the operator of a needle stick injury.
GB9319510A 1993-09-22 1993-09-22 The integral hypodermic needle guard Withdrawn GB2282069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9319510A GB2282069A (en) 1993-09-22 1993-09-22 The integral hypodermic needle guard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9319510A GB2282069A (en) 1993-09-22 1993-09-22 The integral hypodermic needle guard

Publications (2)

Publication Number Publication Date
GB9319510D0 GB9319510D0 (en) 1993-11-10
GB2282069A true GB2282069A (en) 1995-03-29

Family

ID=10742313

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9319510A Withdrawn GB2282069A (en) 1993-09-22 1993-09-22 The integral hypodermic needle guard

Country Status (1)

Country Link
GB (1) GB2282069A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0830869A2 (en) * 1996-09-20 1998-03-25 Becton, Dickinson and Company Needle assembly having single-handedly activated needle barrier
WO2003022335A2 (en) * 2001-09-13 2003-03-20 African Ventures And Technologies (Pty) Ltd Single use safety syringe
WO2005072798A1 (en) * 2004-01-20 2005-08-11 Becton, Dickinson And Company Medical syringe with safety shield system
US8062252B2 (en) 2005-02-18 2011-11-22 Becton, Dickinson And Company Safety shield system for a syringe
WO2015075430A1 (en) * 2013-11-22 2015-05-28 Salar Surgical Ltd Injection system and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884230A (en) * 1973-09-27 1975-05-20 Goldwyn L Wulff Flexible needle and guard device for a hypodermic syringe
WO1990007349A1 (en) * 1988-12-30 1990-07-12 Vadher Dinesh L Retractable needle/syringe device
GB2252046A (en) * 1991-01-22 1992-07-29 Ricardo Sheath Oxford Steyn Syringe needle or catheter covers
US5181524A (en) * 1986-10-14 1993-01-26 Medical Safety Products, Inc. Needle guard for blood collection
GB2262451A (en) * 1991-12-20 1993-06-23 Tze Chuen Ng Dental syringe needle protector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884230A (en) * 1973-09-27 1975-05-20 Goldwyn L Wulff Flexible needle and guard device for a hypodermic syringe
US5181524A (en) * 1986-10-14 1993-01-26 Medical Safety Products, Inc. Needle guard for blood collection
WO1990007349A1 (en) * 1988-12-30 1990-07-12 Vadher Dinesh L Retractable needle/syringe device
GB2252046A (en) * 1991-01-22 1992-07-29 Ricardo Sheath Oxford Steyn Syringe needle or catheter covers
GB2262451A (en) * 1991-12-20 1993-06-23 Tze Chuen Ng Dental syringe needle protector

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0830869A2 (en) * 1996-09-20 1998-03-25 Becton, Dickinson and Company Needle assembly having single-handedly activated needle barrier
EP0830869A3 (en) * 1996-09-20 1998-04-08 Becton, Dickinson and Company Needle assembly having single-handedly activated needle barrier
AU722205B2 (en) * 1996-09-20 2000-07-27 Becton Dickinson & Company Needle assembly having single-handedly activated needle barrier
WO2003022335A2 (en) * 2001-09-13 2003-03-20 African Ventures And Technologies (Pty) Ltd Single use safety syringe
WO2003022335A3 (en) * 2001-09-13 2004-04-22 African Ventures And Technolog Single use safety syringe
US7077824B2 (en) 2001-09-13 2006-07-18 African Ventures And Technology (Pty) Ltd. Single use safety syringe
WO2005072798A1 (en) * 2004-01-20 2005-08-11 Becton, Dickinson And Company Medical syringe with safety shield system
US8062252B2 (en) 2005-02-18 2011-11-22 Becton, Dickinson And Company Safety shield system for a syringe
WO2015075430A1 (en) * 2013-11-22 2015-05-28 Salar Surgical Ltd Injection system and method
US20160287437A1 (en) * 2013-11-22 2016-10-06 Salar Surgical Ltd Injection system and method
CN106029017A (en) * 2013-11-22 2016-10-12 萨拉尔医疗有限公司 Injection system and method
US10646371B2 (en) * 2013-11-22 2020-05-12 Salar Surgical Ltd Injection system and method

Also Published As

Publication number Publication date
GB9319510D0 (en) 1993-11-10

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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)