JPH0230348U

JPH0230348U -

Info

Publication number: JPH0230348U
Application number: JP10707988U
Authority: JP
Priority date: 1988-08-14
Filing date: 1988-08-14
Publication date: 1990-02-27
Also published as: JPH0451800Y2

Description

[Brief explanation of drawings]

第１図、第２図、第３図、第４図は夫々この考
案のひだ付注入排液チユーブの断面形状を示す。
第１図、第２図は注入用管腔の直径ｄとチユーブ
壁の厚さＴの比ｄ／Ｔが小さい場合を示す。第１
図ａは管腔が１つの場合、ｂは管腔が２コの場合
を示す。第２図はチユーブ壁と管腔の関係の拡大
図を示す。第３図、第４図は管腔の直径ｄとチユ
ーブ壁の厚さＴの比ｄ／Ｔが大きい場合を示す。
第３図ａ，ｂは突起の根部が広がつていることを
示し、第３図ａは管腔が１コ、第３図ｂは管腔が
２コの場合を示す。第４図ａは突起と内壁と管腔
の関係を拡大図によつて示したものであり、突起
の頸部最小径Ｎ_１は根部Ｎ_２より小さく、（Ｎ_１〈Ｎ_２）。また管腔はチユーブの強度を保つため
にやや突起寄りにあけてある。第４図ｂは管腔の
ない部分の突起と内壁の関係を示しており、Ｎ_１＝Ｎ_２となつてる。第５図ａ，ｂは従来の注入ド
レーンチユーブの断面形状を示す図である。Ｔ……チユーブ壁の厚さ、ｄ……注入用管腔の
直径、Ｈ……突起（ひだ）の最大幅、Ｎ_１……突
起の頸部最小幅、Ｎ_２……突起の根部最大幅。 1, 2, 3 and 4 respectively show the cross-sectional shape of the pleated injection and drainage tube of this invention.
1 and 2 show the case where the ratio d/T between the diameter d of the injection lumen and the thickness T of the tube wall is small. 1st
Figure a shows a case where there is one lumen, and figure b shows a case where there are two lumens. FIG. 2 shows an enlarged view of the relationship between the tube wall and the lumen. FIGS. 3 and 4 show the case where the ratio d/T between the diameter d of the lumen and the thickness T of the tube wall is large.
Figures 3a and 3b show that the root of the protrusion is widened, Figure 3a shows a case where there is one lumen, and Figure 3b shows a case where there are two lumens. Figure 4a is an enlarged view showing the relationship between the protrusion, the inner wall, and the lumen, and the minimum diameter _N1 of the neck of the protrusion is smaller than _the root _N2 , < _N2 ). Also, the lumen is opened slightly closer to the protrusion to maintain the strength of the tube. Figure 4b shows the relationship between the protrusion and the inner wall in the part without a lumen, and N ₁ = N ₂ . FIGS. 5a and 5b are diagrams showing the cross-sectional shape of a conventional injection drain tube. T...Thickness of the tube wall, d...Diameter of the injection lumen, H...Maximum width of the protrusion (fold), _N1 ...Minimum width at the neck of the protrusion, _N2 ...Maximum width at the root of the protrusion .

Claims

[Claims for Utility Model Registration] (a) The cross-sectional shape of the tube is formed from a large number of protrusions (folds) extending from the inner wall toward the center and one or several semi-circular injection lumens within the wall. Cylindrical pleated inlet and drain tube. (b) The ratio d/T of the diameter d of the injection lumen within the tube wall to the minimum wall thickness T of the tube wall is 1 or less, and the lumen position within the tube wall is small when d/T is small. can be located anywhere on the tube wall; if large, it is located within the wall of the fold attachment area. As d/T increases, the width of the neck of the protrusion increases as it approaches the attachment site. (c) The material is rubber or vinyl. The pleated injection and drainage tube constructed as described above.