JPH08322908A - Resin ampule having opening port of double structure - Google Patents

Abstract

PURPOSE: To safely and quickly conduct operations for sucking a medical fluid from an ampule into an injector without bacterial contamination of the medical fluid even if an injection needle is not used. CONSTITUTION: A neck l part of an ampule is formed as a double structure by an inner cylinder 2 and an outer cylinder 3. The inside diameter of the inner cylinder 2 is made agree with the outside diameter of a suction port of an injector. The bottom of the inside of the ampule is cone-shaped, and a small recess is provided in the central part thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin ampoule having a double neck structure.

[0002]

2. Description of the Related Art A conventional resin ampoule is one in which the necked portion of the head is folded by hand to open it, and the wall thickness of the ampoule at the opening is about 0.5 mm. To aspirate the drug solution without causing bacterial contamination, it was necessary to carefully aspirate with an injector equipped with a needle while tilting the ampoule upside down. By the way, even if the opened ampoule is gently inverted, the chemical solution does not immediately spill out due to the surface tension. In other words, the distance of only about 0.5 mm separating the sterilized and clean drug solution from the outer wall of the ampoule where bacteria exist was protected by this surface tension.

[0003]

This has the following drawbacks to be solved. (B) Bacterial contamination of the drug solution: When the ampoule is turned upside down and the drug solution is sucked in by inserting an injection needle, the surface tension is obstructed and the drug solution climbs over the wall. Could be sucked into the syringe. Even a single drop of liquid medicine is sufficiently thick compared to the thickness of the wall of the ampoule, so there is a possibility that traffic will occur here with the outer wall of the ampoule, and the liquid medicine will be contaminated by bacteria. Current medical science is establishing techniques to manage and save extremely serious patients who could not be saved in the past, but such serious patients are the common bacteria that normally exist in hospitals. May cause infectious disease and may result in death, causing medical problems as MRSA infectious disease and causing widespread social problems. The state-of-the-art medical treatment, such as artificial joints and organ transplants, is now performed tens of thousands of cases nationwide every year, but the more advanced medical treatment is, the weaker it is against bacterial infections. A huge amount of money continues to be invested in measures to prevent infection in treatment rooms and the like.
Due to such advances in medicine, even the slightest contamination of chemical liquids with extremely common bacteria, which has never been a problem in the past, is absolutely unacceptable, and this trend is expected to become even stronger. . On the other hand, the more severely ill a patient is, the more expensive various drugs tend to be administered in large amounts every day, and the higher the probability that a drug solution contaminated with bacteria by a conventional ampoule will enter the body. Is easily guessed. (B) Danger of needle stick accidents-Frequent use of an injection needle when sucking a drug solution into a syringe may lead to a needle stick accident of a medical worker and is dangerous. When a medical worker has a wound on his / her fingertip, hepatitis B, AIDS, or other infectious disease may be caused via the patient's blood. In addition, since the hand injury due to the needle stick accident is extremely painful, it may hinder the work of medical staff such as doctors and nurses who need to wash their hands tens of times daily for work. Therefore, an ampoule capable of directly sucking a drug solution with a syringe without using an injection needle is desirable. (C) Work efficiency is poor ... In order to aspirate the drug solution, it is necessary to first connect a thick injection needle that is easy to suck to a syringe, suck the drug solution, and then replace it with a thin injection needle that is actually used by the patient. It was Further, it is difficult to work quickly because there is always a danger of a needle stick accident when sucking the drug solution with an injection needle. However, in hospitals, it is a daily occurrence such as an emergency situation that requires a moment, and it has been demanded that the suction of the drug solution can be completed safely and as quickly as one second.

[0004]

The present invention has been made in order to eliminate such drawbacks. Referring to the drawings, the neck (1) of an ampoule is divided into an inner cylinder (2) and an outer cylinder. A double structure is obtained by (3). The inner diameter of the inner cylinder (2) is adjusted to the outer diameter of the suction port of the syringe. The bottom of the ampoule has a mortar-like shape with a small depression in the center. The ampoule is constructed as described above.

[0005]

According to the present invention, the content liquid of the ampoule can be sucked by only the syringe without using the injection needle. Also,
The clean area of the opening is widened and the possibility of bacterial contamination of the drug solution is dramatically reduced. Since the usage of the injection needle decreases,
It not only improves work safety but also helps reduce medical waste.

[0006]

Embodiments of the present invention will be described below. (A) Considering the entire ampoule as one lump, the ampoule is divided into two pieces in the longitudinal direction, and the pieces are bonded together. At this time, make a hole in the head or bottom, inject the drug solution, and then close the hole. (B) Hold the ampoule's head (4) with your fingers, fold the neck (1) to open the ampoule, insert the syringe inlet directly into the inner cylinder (2), then turn the ampoule upside down,
Aspirate air from the syringe while sucking the drug solution. (C) The length from the opening to the bottom inside the ampoule,
Generally, the length is not more than the length of the injection needle used for sucking the drug solution. Accordingly, even when the drug solution is sucked using the injection needle, the drug can be sucked without tilting the ampoule. (D) The inner bottom surface of the ampoule is shaped like a mortar, and a small recess (6) is provided in the center thereof. When aspiration is performed using an injection needle, if the needle tip is guided to this recess, the drug solution can be aspirated to the end without tilting the ampoule. (E) For a drug solution that is expected to be rarely sucked using an injection needle, the bottom surface inside the ampoule may have a flat shape. (F) The shape of the head (4) of the ampoule may be such that it can be easily folded and used. (G) A notch (5) is provided on the neck (1) of the ampoule so that it can be easily opened.

[0007]

The following effects are brought about by the present invention. (B) Reduction of bacterial contamination of chemicals: The clean area of the opening will be widened, and the possibility of bacterial contamination of chemicals will be dramatically reduced. (B) Shortening the work time: The work process is reduced and the work can be done quickly by not using the injection needle. (C) Reduction of needle stick accidents by medical personnel: The use of the ampoule according to the present invention reduces the chances of using an injection needle and reduces needle stick accidents. (D) Reduction of medical waste: Use of injection needles is reduced, which helps reduce medical waste.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a cross-sectional view taken along the line A-A ′ of the present invention.

[Explanation of symbols]

 (1) is the neck of the ampoule (2) is the inner cylinder (3) is the outer cylinder (4) is the head of the ampoule (5) is the notch (6) is the recess in the center of the bottom

Claims (1)

[Claims] (A) A neck (1) portion of an ampoule has a double structure by an inner cylinder (2) and an outer cylinder (3). (B) The inner diameter of the inner cylinder (2) is adjusted to the outer diameter of the suction port of the syringe. (C) The bottom of the ampoule shall have a mortar-like shape with a small recess in the center. An ampoule constructed as above.