JPH09313606A - Injector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use an injector for many times just by exchanging an injection needle without disposing it, to reduce the amount of the rubbish of a hospital or the like and to enlarge an economical effect as well by welding a covering body to the inner cylinder flange part of the injector. SOLUTION: An appropriate synthetic resin film is used and the covering body 3 in a circular bag shape whose inner diameter is almost equal to the outer shape of an outer cylinder flange part 5 and length is the almost same dimension as the length of an inner cylinder main body 2a is formed first. Then, the opening part 4 of the covering body 3 is put on the peripheral edge of the outer cylinder flange part 5 from the inner cylinder flange part 6. Then, when the injector A is made of synthetic resin, it is welded at an appropriate temperature or adhered by an adhesive material. When the injector A is made of glass, it is adhered by an appropriate adhesive material. Thus, the exposed part 7 of an inner cylinder 2 is turned to a completely tightly sealed state through the inner cylinder flange part 6. Thus, at the time of sucking injection fluid, even when the exposed part 7 is grasped and operated through the inner cylinder flange part 6, the concern of contamination is eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a syringe, and more specifically, in using the syringe, a syringe is covered with a syringe in order to prevent the inner barrel of the syringe from being exposed and contaminated when injecting an injection solution. The present invention relates to a syringe in which an exposed portion of an inner cylinder is contained and which can be sealed.

[0002]

2. Description of the Related Art Conventionally, in the case of a syringe, the inner surface of a syringe outer cylinder (hereinafter referred to as the outer cylinder) is not directly touched by the operator's hand, but in order to inhale the injection solution into the syringe. ,
When the syringe inner cylinder (hereinafter referred to as the inner cylinder) is pulled out to the outside, the operator's hand or the like easily touches the surface of the inner cylinder, and the inner cylinder is contaminated. No proposal has yet been made to take steps to prevent this pollution.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention An inner cylinder is pulled out from an outer cylinder in order to inhale or inject an injection solution into a syringe,
During the inserting operation step, the inner surface of the outer cylinder is contaminated due to the contact with the dirty portion of the inner cylinder surface which was contaminated by touching with a hand or the like. Therefore, the next inhaled injection will be contaminated,
It is medically dangerous to inject it into the human body.

[0004]

Therefore, the syringe according to the present invention achieves the above-mentioned object by completely covering the functional portion of the inner cylinder, that is, the portion that goes in and out of the outer cylinder when injecting and injecting the injection liquid. did. That is, the coating means, using a thin synthetic resin film, preferably a transparent and flexible film, to form a circular bag-shaped coating body of a size that can completely cover the entire exposed portion including the functional portion of the inner cylinder, It may be welded to the flange of the outer cylinder through the opening of the cover.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The outer cylinder of a conventional syringe is generally composed of an outer cylinder tip tube 8 formed by projecting at the center of the outer cylinder for fitting an injection needle (not shown), and a hollow outer cylinder body. 1a and a rear end outer cylinder flange portion 5 corresponding to the base portion of the outer cylinder. The outer cylinder flange portion is formed in a ring shape protruding to the rear end peripheral edge of the outer cylinder. Further, the inner cylinder of the syringe has an inner cylinder main body 2a formed in a hollow cylinder or a column including a ring-shaped inner cylinder collar portion 6 protruding to the peripheral edge of the rear end and a part of an exposed portion 7,
It is configured to be closely fitted in the outer cylinder body.

In the syringe having the above-mentioned structure, the inner diameter of the opening 4 is substantially equal to the outer diameter of the outer tubular collar 5 and the length of the inner tubular body is made by using an appropriate synthetic resin film as a material. A circular bag-shaped cover 3 having a size substantially equal to that of the cover is formed, and the opening of the cover is welded or adhered to the outer peripheral edge of the outer cylinder flange to thereby cover the inner cylinder. In No. 2, the exposed portion including the inner cylindrical collar portion 6 is completely sealed, and there is no contamination generated during use, and the extremely hygienic syringe of the present invention is completed.

[0007]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a state in which an inner cylinder of a syringe of the present invention is fitted into an outer cylinder, and FIG. 2 is a plan view showing a state in which an injection liquid is sucked and an inner cylinder is pulled out. The syringe A of the present invention shown in FIGS. 1 and 2 may be made of synthetic resin, glass, or the like, but recently, a lightweight disposable synthetic resin is often used.

The covering body 3 for covering the syringe according to the present invention may be a synthetic resin film having a thickness of about 100 μm which is not broken by a slight external force, for example, any film such as polyethylene, polyvinylidene or polyvinyl. However, it is preferable to select and make a material that is extremely thin, flexible, transparent and inexpensive.

That is, first, an appropriate synthetic resin film is used, and an inner diameter is substantially equal to an outer diameter of the outer tubular collar portion 5 and a length thereof is a circular bag-like covering having substantially the same dimension as the length of the inner tubular body 2a. 3 is formed. Next, the opening 4 of the cover 3 is covered on the peripheral edge of the outer tubular collar portion, and if the syringe is made of synthetic resin, it is welded at an appropriate temperature or bonded with an adhesive, and the syringe is made of glass. If there is an appropriate adhesive, the exposed portion of the inner cylinder will be completely sealed, and when injecting the injection solution, the exposed portion may be grasped and manipulated via the inner cylinder collar portion 6. However, there is no worry of pollution. In addition,
As a matter of course, the syringe A to which the cover 3 is attached
Is sterilized by an appropriate pasteurization method that has been generally used in the past, and then used.

[0010]

Since the syringe of the present invention is formed in a state where all the inner cylinders are covered and sealed, there is no possibility of being contaminated during operation, and the inside of the syringe is kept completely clean. Therefore, without throwing away a single syringe,
You can use it as many times as you like, just by changing the injection needle. In addition, since the synthetic resin film which is inexpensive can be used as the material of the covering, the production cost is low, and the amount of waste such as hospitals is reduced.

[Brief description of drawings]

FIG. 1 is a plan view of the syringe of the present invention.

FIG. 2 is a plan view showing a usage state of the syringe of the present invention.

[Explanation of symbols]

 A Syringe 1 Syringe outer cylinder 1a Outer cylinder body 2 Syringe inner cylinder 2a Inner cylinder body 3 Cover 4 Opening 5 Outer cylinder flange 6 Inner cylinder flange 7 Exposed part 8 Outer cylinder tip tube 9 Injection

Claims (1)

[Claims] 1. An inner diameter of the opening 4 is an outer cylinder collar 5 of the syringe A.
A circular bag-like cover 3 formed of a synthetic resin film having a length equal to the outer diameter of the syringe and a length corresponding to the length of the inner cylinder body 2a of the syringe. A syringe characterized in that it includes the exposed portion 7 of the syringe inner tube 2 including the tube collar portion 6 and welds it to the outer tube collar portion through an opening to seal the syringe inner tube.