Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1996-10-15
1998-01-20
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604192, 604193, A61M 500
Patent
active
057096597
DESCRIPTION:
BRIEF SUMMARY
FIELD OF INVENTION
The present invention is related to a non-reusable syringe containing a single dosage of a drug. The syringe is of a conventional type and is provided with means for permanent destruction so it will be impossible to use repeatedly. It is also provided with a needle destruction device and a needle cover device to avoid accidental needle sticks.
BACKGROUND OF THE INVENTION
Many medical authorities request syringes that are easily and safely destroyable to prevent contaminated goods from being used and circulated without control. It is also highly desirable to protect the personnel handling the syringes from accidental sticks from used needles.
There are a plurality of devices described in the prior art that disclose irreversible or temporary needle retraction of the needle into the syringe barrel with locking means, see e.g. U.S. Pat. No. 5,267,976. The U.S. Pat. No. 5,269,760 discloses a single use syringe having its push rod locked into the syringe body when fully advanced after injection.
In the International patent Application WO 89/08468, it is disclosed how a part of the plunger rod of a syringe is detached and used as a temporary needle protector. In this syringe it is, however not, provided for means to destroy the needle, which means there is a risk it will be reused.
The South African patent specification ZA 9209204 and the corresponding British patent application GB 2 256 146 disclose syringes made non-reusable, having a needle receiver for disposed needles formed in a part of the syringe plunger. After administering the drug with this syringe, the hollow plunger rod is permanently broken from its piston when withdrawn from the syringe barrel. The broken hollow plunger rod will thereafter be used to demount the needle of the syringe and introduce it through an axially extended slot in its side wall. Finally, the broken plunger rod housing the needle is re-inserted into and locked to the syringe barrel. This type of syringe requires, however, a specially formed type of needle mounted to the syringe and also a specific syringe body with locking means in order to re-insert the broken plunger with the needle to protect the needle from being used inadvertently and protect the user from accidental sticks. These features will make the syringe complicated and costly to manufacture due its many specially designed parts. In daily hospital operative practice, by personnel often exposed to stressed situations, there is always a risk that the needle will not be correctly demounted or not removed at all by the broken plunger. Another risk with this type of syringe is that the broken plunger with detached syringe is not properly locked to syringe barrel or, in worst case, never re-inserted into the barrel, due to stress or neglectfulness of the user, which may lead to the needle being exposed for inadvertent use.
It would therefore be desirable to provide a disposable single use syringe which can minimize the exposure of the needle, and with a minimum of movements, safely can make both the needle and plunger mechanism entirely inoperative after use. It is also desirable to, at the highest possible extent, to use only standardized syringe components, to reduce manufacturing costs and increase the applicability.
The present invention intends to fulfil these requirements by providing a syringe to the largest possible extent consisting of a standardized components, having a permanently detachable hollow plunger rod which both can be used to break the needle and be used as housing for the broken needle when attached to the needle holder of the front part of the syringe. Such a syringe has a number of dear advantages in that: destruction; without unnecessary exposure; patient and be disposed with ordinary domestic refusals; injection; thereby fulfil rigorous security provisions
DESCRIPTION OF THE INVENTION
The present invention is directed to a drug containing non-reusable syringe having a movable, hollow plunger rod in connection with a plunger, for injecting the drug through the needle. The
REFERENCES:
patent: 2453591 (1948-11-01), Poux
patent: 3882866 (1975-05-01), Zackheim
patent: 4270536 (1981-06-01), Lemelson
patent: 4710170 (1987-12-01), Haber et al.
patent: 4917243 (1990-04-01), Abrams et al.
patent: 4919652 (1990-04-01), Alter et al.
patent: 4944397 (1990-07-01), Miller
patent: 5004460 (1991-04-01), Gimeno
patent: 5267976 (1993-12-01), Guerineau et al.
patent: 5269760 (1993-12-01), Bina
patent: 5318537 (1994-06-01), Van Der Merwe
Bennwik Percy
Eklund Bo
Pharmacia & UpJohn AB
Yasko John D.
LandOfFree
Non-reusable injection device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-reusable injection device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-reusable injection device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-722077