JP4293787B2 - Variable bending needle - Google Patents
Variable bending needle Download PDFInfo
- Publication number
- JP4293787B2 JP4293787B2 JP2002383047A JP2002383047A JP4293787B2 JP 4293787 B2 JP4293787 B2 JP 4293787B2 JP 2002383047 A JP2002383047 A JP 2002383047A JP 2002383047 A JP2002383047 A JP 2002383047A JP 4293787 B2 JP4293787 B2 JP 4293787B2
- Authority
- JP
- Japan
- Prior art keywords
- needle
- tube
- bent
- tip
- string
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
【０００１】
【発明の属する技術分野】
この発明は、針の先端部分（４）にひも（２）を取り付け、針の根元部分（５）を固定した状態で、ひも（２）を引くことによって湾曲させることができる針（１）を中空の筒（３）に通し、針（１）を曲げることで筒（３）を湾曲させるようにした可変湾曲式注射針に関するものである。
【０００２】
【従来の技術】
従来の注射針は形状が固定していた。
【０００３】
【発明が解決しようとする課題】
これは、次のような欠点があった。いったん注射針を組織に突き刺すと針先の向きを途中で変えることが困難であった。本発明は、以上のような欠点をなくすためになされたものである。
【０００４】
【課題を解決するための手段】
先端付近にひも、あるいは、針金を取り付け、これを引くことにより湾曲することができる、刃先を備え組織を穿刺するための針（１）を、直径が変化し難い素材よりなる中空の筒（３）に通し、前記針（１）を曲げることにより筒（３）を湾曲させる構成とした。
【０００５】
【発明の実施の形態】
以下、本発明の実施の形態について説明する。
針（１）は根元部分（５）を固定し、ひも（２）を矢印（６）の方向に引くことで湾曲した形状に変化させることができる。
筒（３）は容易に曲げることができるが、筒の直径は変化し難い素材を用いる。
針（１）を筒（３）に通し、矢印（７）の方向に引くことで、筒（３）を湾曲させることができる。
本発明は、以上のような構造でこれを使用するときは、組織を突き刺した状態で針（１）と筒（３）を湾曲させればよい。
【０００６】
【発明の効果】
組織を突き刺した状態で針（１）と筒（３）を湾曲させることができる。このため、湾曲させた状態で針（１）と筒（３）をさらに刺し進めれば、湾曲した方向に先端を進めることができる。したがって、従来のように針先の向きを変えるためにいったん組織外まで針を引き抜く必要がなくなる。これにより目標地点をより正確に穿刺することができるばかりでなく、不必要な組織の損傷を避けることができる。
【図面の簡単な説明】
【図１】本発明の分解斜視図である。
【図２】針（１）を湾曲させた図である。
【図３】針（１）を筒（３）に差し込んだ図である。筒（３）を透明と仮定した透視図として示している。
【図４】針（１）を筒（３）に差し込み湾曲させた図である。筒（３）を透明と仮定した透視図として示している。
【符号の説明】
１ 針
２ ひも
３ 筒
４ 針の先端部分
５ 針の根元部分
６ 矢印
７ 矢印[0001]
BACKGROUND OF THE INVENTION
In this invention, the needle (1) that can be bent by pulling the string (2) in a state where the string (2) is attached to the tip part (4) of the needle and the root part (5) of the needle is fixed. The present invention relates to a variable curve type injection needle that is passed through a hollow tube (3) and bent so that the tube (3) is bent by bending the needle (1).
[0002]
[Prior art]
A conventional injection needle has a fixed shape.
[0003]
[Problems to be solved by the invention]
This has the following drawbacks. Once the injection needle was inserted into the tissue, it was difficult to change the direction of the needle tip. The present invention has been made to eliminate the above drawbacks.
[0004]
[Means for Solving the Problems]
A needle (1) that has a cutting edge and can be bent by attaching a string or wire near the tip and pulling it, is a hollow tube (3) made of a material whose diameter is difficult to change. ), The tube (3) is bent by bending the needle (1).
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
The needle (1) can be changed into a curved shape by fixing the root portion (5) and pulling the string (2) in the direction of the arrow (6).
The cylinder (3) can be bent easily, but a material whose diameter does not easily change is used.
By passing the needle (1) through the tube (3) and pulling in the direction of the arrow (7), the tube (3) can be curved.
In the present invention, when the above structure is used, the needle (1) and the tube (3) may be bent with the tissue pierced.
[0006]
【The invention's effect】
The needle (1) and the tube (3) can be bent with the tissue pierced. For this reason, if the needle (1) and the tube (3) are further pierced in a curved state, the tip can be advanced in the curved direction. Therefore, it is no longer necessary to pull out the needle once outside the tissue in order to change the direction of the needle tip as in the prior art. Thereby, not only can the target point be punctured more accurately, but also unnecessary tissue damage can be avoided.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of the present invention.
FIG. 2 is a view of a curved needle (1).
FIG. 3 shows the needle (1) inserted into the cylinder (3). The cylinder (3) is shown as a perspective view assuming that it is transparent.
FIG. 4 is a view in which a needle (1) is inserted into a tube (3) and curved. The cylinder (3) is shown as a perspective view assuming that it is transparent.
[Explanation of symbols]
1
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002383047A JP4293787B2 (en) | 2002-12-06 | 2002-12-06 | Variable bending needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002383047A JP4293787B2 (en) | 2002-12-06 | 2002-12-06 | Variable bending needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004188134A JP2004188134A (en) | 2004-07-08 |
| JP4293787B2 true JP4293787B2 (en) | 2009-07-08 |
Family
ID=32766878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002383047A Expired - Fee Related JP4293787B2 (en) | 2002-12-06 | 2002-12-06 | Variable bending needle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4293787B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4638276B2 (en) * | 2005-05-13 | 2011-02-23 | 株式会社八光 | Variable injection needle |
-
2002
- 2002-12-06 JP JP2002383047A patent/JP4293787B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004188134A (en) | 2004-07-08 |
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