KR920016111A - Disposable Hypodermic Syringe - Google Patents

Abstract

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Description

Disposable Hypodermic Syringe

Since this is an open matter, no full text was included.

1 is a cross-sectional elevation view of a syringe prior to use. FIG. 2 is a view similar to the first view when the syringe becomes obsolete.

Claims (4)

Disposable hypodermic syringe that forms a hollow piston that narrows the front part and accommodates the hypodermic needle and slides the inside of the tube, which is held in the operating position by the head of the needle and placed across A blocking device is also placed on the front inner part of the needle and the head of the needle is directed toward the inside of the tube and pressed in turn by a spring held by an interlocking device lying within the inner part of the tube. An inverted joint holding device placed on the piston's inner part and fitted to other auxiliary connections is placed on the head of the needle working together when the piston comes into contact after it has completed its operation. The blocking device mentioned above is made of some flexible material. It consists of disc-shaped part and the edge part comes into contact with the inner wall of the front part of the pipe. It is tightly sealed and has a countersink central hole that receives the head end of the passing needle that also makes a tight closure to the above-mentioned corrugated end, and the discoid portion is provided at the front of the piston when the piston completes its operation. The discoid part is pushed forward and has an appendage on the front side, which is operated in the interlocking locking device of the inner front part of the tube, so that the discoid part and the needle move slightly forward when pushed by the guistone. A disposable hypodermic syringe, characterized by pushing the mentioned holding device and releasing a needle which is forced by a spring and into the cavity of the piston. 2. The said interlocking retaining device of the tubular face portion is fitted with an annular outer groove that rounds the outside of the needle head so that it is removed when it is bent by the pushing action of the appendage of the aforementioned discoidal portion. Disposable hypodermic syringe, characterized in that it consists of a number of flexible tongs that rise from the buck of the tube at an inclined angle toward the inner front. 2. The already mentioned closing device of the piston cavity consists of a disk button and the edge portion is press fit into an annular groove which rounds the mouth of the piston cavity, and the disk button mentioned above is a reversed connection. It has an external stepped protrusion that press-fits into the countersunk hole of the needle head, which cannot be pulled out due to the opposing action of the auxiliary interlocking device mentioned above, which in turn constitutes a concave step. Disposable hypodermic syringe having the feature of having a protrusion. The disposable hypodermic syringe according to claim 1, wherein the piston holding device is arranged in the mouth of the cavity of the cavity so that the piston is not completely pulled out of the tube. ※ Note: The disclosure is based on the initial application.