WO2001012251A1

WO2001012251A1 - Syringe for one-hand use

Info

Publication number: WO2001012251A1
Application number: PCT/KR2000/000901
Authority: WO
Inventors: Jong-Hwan Park
Original assignee: Park Jong Hwan
Priority date: 1999-08-18
Filing date: 2000-08-14
Publication date: 2001-02-22
Also published as: KR200168880Y1; AU6480400A

Abstract

The present device relates to a syringe for one-handed use, for injecting medicine by using one hand, which can supply a necessary injection at the target area. Although a conventional syringe normally requires two-handed use, only one hand could be used during the operation of drawing blood, etc. It is very inconvenient to use the syringe with one hand. It also is difficult to use during the operation of drawing the injection since the fingers can easily slip on the syringe. Accordingly, the present device relates to a syringe having an injection outlet at the lower side of a barrel; a protruding flange at the upper side of the barrel; a packing at the lower side of a piston; and a projecting part at the upper side of the piston, which comprises a suspension flange at the lower side of the protruding flange on the barrel; and a suspension slot from the upper side of the piston to the lower side of the projecting part. In this way, the present device is easy to use for drawing and injecting with one hand without slipping.

Description

WO 01 /l 2251 PCT/KROO/00901

1 SYRINGE FOR ONE-HAND USE

TECHNICAL FIELD

The present device relates to a syringe for one-handed use, by drawing and injection by using one hand which can supply a necessary injection at the target area.

BACKGROUND ART

In general, a syringe has an injection outlet at the lower side of a barrel, and a protruding flange (e.g., finger flange) at its upper side. A piston with a packing, fitted inside the barrel, has a projecting part (e.g., thumb rest) at the upper side thereof. By using a needle connected to the injection outlet, an injection can be supplied from the ampoule, which is taken up in the barrel. After impaling with the needle at the target point, the injection in the barrel, with a push of a piston, is discharged via packing.

However, in drawing in the injection from the ampoule, or in compressing the piston, the ampule or the area to be injected is held by the left hand in most cases, which leaves one available hand for taking in the medicine for injection.

Meanwhile, for drawing in the injection with one hand, the index and middle fingers are placed at the lower side of the protruding flange (e.g., finger flange). While placing the thumb on the lower side of the projecting part (e.g., thumb rest), the piston then is pushed upward. However, the index finger and the thumb tend to slip downward on the barrel, which poses difficulty with respect to lifting the piston.

Since the injection is drawn in or injected with one hand in an unstable state, it is highly likely to cause errors during the process therein.

Moreover, in cases of drawing blood from the body, the periphery of the blood vessel must be held by one hand for targeting. After there impaling with the needle with one hand. the blood is drawn in by a syringe. Although the syringe is used with one hand, it cannot possibly be used with ease.

DISCLOSURE OF INVENTION

The objective of the present device is to provide a syringe for one-handed use, for injecting and drawing an injection or blood.

The present device relates to a syringe for one-handed use, which comprises a suspension flange, protruding in addition to the protruding flange at its lower side on a barrel; and a suspension slot for inserting a thumb at the lower side of the projecting part of a piston. For one-handed use of the syringe, the thumb is inserted at the suspension slot while placing the index and middle fingers between the suspension flange and protruding flange.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective drawing of the present device with disassembled parts.

FIG.2 is a sectional drawing of the present device as assembled.

BEST MODE FOR CARRYING OUT THE INVENTION

As shown in FIGS. 1 and 2, the present device comprises as follows: an injection outlet (5) at the lower side of a barrel (2), for connecting to a needle or hose; a protruding flange (4) around the rim at the upper side of the barrel (2); a suspension flange (3) at the lower side of said protruding flange (4); and anti-slipping protuberances (10) on the outer surface of the barrel (2).

Moreover, the present device is a syringe (1), comprising a packing (9) fitted at the lower side of a barrel (2), wherein an injection or blood is drawn in for charging or discharging by means of a piston movement within said barrel (2); a piston (6) having a suspension slot (7); and a projecting part (8) at the upper side of said piston (6), wherein a thumb can be inserted at the lower side of said projecting part (8).

In the present device with such a structure, a packing (9) is inserted into the barrel (2) for advancing it to the end thereof. Then, an injection needle is connected to the injection outlet (5) and is fixated onto the ampoule where the injection is stored. While holding the ampoule with a right hand, the piston (6) situating at the upper side of the barrel (2) is moved upward

Accordingly, the packing (9) moves in such a way as to draw in the injection from the ampoule for charging the barrel (2).

However, in order to raise the piston (6) by lifting the projecting part (8) while holding the barrel (2) with one hand, the thumb is inserted into the suspension slot (7), and then the index and middle fingers are inserted between the protruding flange and the suspension flange.

In raising the piston (6) by putting force into the thumb, the index and middles fingers tend to slip downward. Yet, since the two fingers are hindered by the suspension flange (3), this type of slipping is effectively prevented, the result of which is the charging of a syringe by drawing in the injection into the barrel with one hand.

Thereafter, with a left hand, the injection needle is made to impale the target area which is to be administered with the injection. Then, the index and middle fingers are placed at the lower side of the protruding flange (4), and the upper side of the projecting part (8) is pressed downward for effectively administrating the injection.

Moreover, when the piston (6) is retracted, the fingers except for the thumb are placed at the lower side of the suspension flange (3), the result of which is to prevent a downward slipping of the fingers by means of anti-slipping protuberances (10). In this way, the retracting of the piston (6) is greatly facilitated.

Not only for drawing and injecting medicine, the present device can be utilized in all the applications of a syringe (e.g., drawing blood).

INDUSTRIAL APPLICABILITY

The present device provides a means of injecting with ease by using one hand, which can be charged by drawing in an injection into the syringe with one hand.

The present device provides a syringe for one-handed use by means of a suspension flange at the lower side of the protruding flange on a barrel, and a suspension slot at the lower side of the projecting part on a piston.

Claims

1. A syringe for one-handed use, having an injection outlet (5) at the lower side of a barrel (2); a protruding flange (4) at the upper side of the barrel (2); a packing (9) at the lower side of a piston (6); and a projecting part (8) at the upper side of the piston (6), which comprises a suspension flange (3) at the lower side of the protruding flange (4) on the barrel (2); anti-slipping protuberances (1) at the lower side of said suspension flange (3); a suspension slot (7) from the upper side of the piston (6) to the lower side of the projecting part (8).