JPH0477948U

JPH0477948U -

Info

Publication number: JPH0477948U
Application number: JP12146190U
Authority: JP
Priority date: 1990-11-19
Filing date: 1990-11-19
Publication date: 1992-07-07
Anticipated expiration: 2005-11-19
Also published as: JP2533814Y2

Description

[Brief explanation of the drawing]

第１図乃至第５図は本考案に係る２成分用注射
器の第１実施例を示し、第１図は全体の斜視図、
第２図は全体の分解斜視図、第３図は注射開始時
の状態を示す断面側面図、第４図は注射途中の状
態を示す断面側面図、第５図は要部の拡大断面図
である。第６図は第２実施例を示す要部の断面側
面図である。第７図及び第８図は第３実施例を示
し、第７図は要部の断面側面図、第８図は第７図
の−線断面図である。第９図及び第１０図は
第４実施例を示し、第９図は注射開始時の状態を
示す断面側面図、第１０図は注射途中の状態を示
す断面側面図である。第１１図は従来の２成分用
注射器を示す一部切欠き側面図である。１……注射針、２……針接続部、３……外筒、
３Ａ，３Ｂ……室、４，５……ガスケツト、６…
…プランジヤロツド、１４……ストツパー、ａ…
…ガイド面。 1 to 5 show a first embodiment of a two-component syringe according to the present invention, and FIG. 1 is an overall perspective view;
Fig. 2 is an exploded perspective view of the entire structure, Fig. 3 is a sectional side view showing the state at the start of injection, Fig. 4 is a sectional side view showing the state during injection, and Fig. 5 is an enlarged sectional view of the main parts. be. FIG. 6 is a cross-sectional side view of the main parts showing the second embodiment. 7 and 8 show a third embodiment, in which FIG. 7 is a cross-sectional side view of the main part, and FIG. 8 is a cross-sectional view taken along the line -- in FIG. 7. 9 and 10 show the fourth embodiment, FIG. 9 is a cross-sectional side view showing the state at the start of injection, and FIG. 10 is a cross-sectional side view showing the state during injection. FIG. 11 is a partially cutaway side view showing a conventional two-component syringe. 1... Syringe needle, 2... Needle connection part, 3... Outer cylinder,
3A, 3B...chamber, 4, 5...gasket, 6...
...Plunger rod, 14...Stopper, a...
...Guide surface.

Claims

[Claims for Utility Model Registration] 1. Two gaskets 4 are inserted through an opening formed at the other end of the outer cylinder 3 into an outer cylinder 3 having a needle connection part 2 at one end, which is opened when the injection needle 1 is installed. , 5 are slidably inserted into the gaskets 4, 5.
Two chambers 3A, 3B inside the outer cylinder divided by
A gasket 5 is located on the opening side of the outer cylinder 3 and stores the dry drug and the solution separately.
A two-component syringe is provided with a plunger rod 6 attached to the syringe, and further provided with an inflow restriction structure that guides the solution contained in one chamber 3B into the other chamber 3A only when the plunger rod 6 is pushed in. The opening side end of the outer cylinder 3 is brought into contact with the plunger rod 6 or the gasket 5 located on the opening side of the outer cylinder 3 from the axial direction of the outer cylinder 3, thereby preventing the gasket 5 from coming off. This is a two-component syringe equipped with a stopper 14. 2. The two-component syringe according to claim 1, wherein the stopper 14 is formed with a guide surface a for guiding the plunger rod 6 along the axial direction of the outer cylinder 3.