JPS59137736U

JPS59137736U - intravascular indwelling needle

Info

Publication number: JPS59137736U
Application number: JP3314883U
Authority: JP
Inventors: 神谷　千寿
Original assignee: テルモ株式会社
Priority date: 1983-03-08
Filing date: 1983-03-08
Publication date: 1984-09-13
Also published as: JPH0313327Y2

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ａ、　　ｂは、従来の血管内留置針の内針組立体
と、カテーテル組立体をそれぞれ示す正面図である。第
２図は、従来の血管内留置針の正面図である。第３図は
、従来の血管内留置針の欠点を説明するためのカテーテ
ル組立体の部分縦断面図である。第４図は、本考案の血
管内留置針の実施例に係る部分縦断面した正面図である
。第５図は、本考案の血管内留置針の異なる変形例に係
る要部であるカテーテル組立体の部分縦断面図である。Ａ・・・・・・内針組立体、Ｂ・・・・・・カテーテル
組立体、１・・・・・・内針、２・・・・・・内針ハブ
、４・・・・・・カテーテル、５・・・・・・カテーテ
ルハブ、６・・・・・・連結管、９・・・・・・中継リ
ング、１０・・・・・・中継ハブ、１０ａ・・・・・・
中継リング用差込口、１０ｂ・・・・・・連結管用差込
口、１１・・・・・・中継リング用差込口。FIGS. 1a and 1b are front views respectively showing an inner needle assembly and a catheter assembly of a conventional intravascular indwelling needle. FIG. 2 is a front view of a conventional intravascular indwelling needle. FIG. 3 is a partial vertical sectional view of a catheter assembly for explaining the drawbacks of the conventional intravascular indwelling needle. FIG. 4 is a partially vertically sectional front view of an embodiment of the intravascular indwelling needle of the present invention. FIG. 5 is a partial longitudinal sectional view of a catheter assembly, which is a main part of a different modification of the intravascular indwelling needle of the present invention. A... Inner needle assembly, B... Catheter assembly, 1... Inner needle, 2... Inner needle hub, 4...・Catheter, 5... Catheter hub, 6... Connecting pipe, 9... Relay ring, 10... Relay hub, 10a...
Relay ring insertion port, 10b... Connecting pipe insertion port, 11... Relay ring insertion port.

Claims

[Scope of utility model registration request]

(1) An inner needle assembly consisting of an inner needle and an inner needle hub that supports the proximal end of the inner needle, a catheter that is inserted through the inner needle, a catheter hub that supports the rear end of the catheter, and an inner needle hub that supports the proximal end of the inner needle; In an intravascular indwelling needle configured with a catheter assembly including a connector provided on the rear end side via a flexible connecting tube, the catheter hub is connected to the relay hub via a relay ring made of a thin hard material. The catheter hub has a relay ring connecting end at the rear end having an inner diameter equal to the outer diameter of the relay ring; has an inner diameter at one end equal to the inner diameter of the catheter hub, the relay hub is made of a material that has good adhesion to the connecting tube and has an inner diameter equal to the inner diameter of the connecting tube, and the relay ring is attached at one end. An intravascular indwelling needle characterized by having a relay ring insertion port having an inner diameter equal to the outer diameter of the connecting tube, and a connecting tube insertion port having an inner diameter equal to the outer diameter of the connecting tube at the other end.

(2) The intravascular indwelling needle according to claim 1, wherein the relay ring is made of metal.