JPS6138378U

JPS6138378U - medical check valve

Info

Publication number: JPS6138378U
Application number: JP12284584U
Authority: JP
Inventors: 宏隆村手; 靖伊藤; 輝久加瀬; 弘之斉藤; 剛高橋
Original assignee: テルモ株式会社
Priority date: 1984-08-13
Filing date: 1984-08-13
Publication date: 1986-03-10
Also published as: JPH0216765Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の第一実施例に係る逆止弁を示す断面図
、第２図は第１図の■一■線に沿う断面．図、第３図は
同逆止弁の開弁状態を一部破断して示す側面図、第４因
は本考案の第二実施例に係る逆止弁を示す断面図、第５
図は同逆止弁の内筒部を取り出して示す正面図、第６図
は本考案の第三実施例に係る逆止弁を示す断面図である
。１０・・・逆止弁、１１・・・外筒部、１２・・・内筒
部、１３−・・ノズル挿入口、１４・・・連通口、１５
・・・ノズル、２０・・・逆止弁、２１・・・先端開口
、２２・・・溝部、２３・・・突起部、３０・・・逆止
弁、１３Ａ・・・ノズル挿入口。FIG. 1 is a cross-sectional view showing a check valve according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line 1-1 in FIG. Figure 3 is a partially cutaway side view showing the check valve in the open state; the fourth cause is a sectional view showing the check valve according to the second embodiment of the present invention;
The figure is a front view showing the inner cylinder portion of the check valve taken out, and FIG. 6 is a sectional view showing the check valve according to a third embodiment of the present invention. DESCRIPTION OF SYMBOLS 10... Check valve, 11... Outer cylinder part, 12... Inner cylinder part, 13-... Nozzle insertion port, 14... Communication port, 15
... Nozzle, 20 ... Check valve, 21 ... Tip opening, 22 ... Groove, 23 ... Projection, 30 ... Check valve, 13A ... Nozzle insertion port.

Claims

[Scope of utility model registration request]

(1) One end is an open end and the outer cylinder part has a nozzle insertion convex on the side wall, and one end that is inserted into the open end of the outer cylinder part is a communication port and is fitted tightly to the inner surface of the outer cylinder part. and an inner cylinder part having a side wall near the communication port that closes the nozzle insertion opening of the outer cylinder part, the side wall of the inner cylinder part being inserted into the nozzle insertion opening of the outer cylinder part. The tip of the nozzle has visibility to elastically deform inward of the inner cylinder part, and this deformation forms a state of communication between the nozzle insertion port and the internal spaces of the outer cylinder part and the inner cylinder part. Features of medical check valves.

(2) The medical check valve according to claim 1, wherein the side wall of the inner cylinder portion facing the nozzle insertion port projects outward.

(3) The medical check valve according to claim 1, wherein the nozzle insertion port is arranged at an angle on the side wall of the inner cylinder portion facing the nozzle insertion port.