JP3002163U - Tube for indwelling vascular catheter - Google Patents
Tube for indwelling vascular catheterInfo
- Publication number
- JP3002163U JP3002163U JP1994004412U JP441294U JP3002163U JP 3002163 U JP3002163 U JP 3002163U JP 1994004412 U JP1994004412 U JP 1994004412U JP 441294 U JP441294 U JP 441294U JP 3002163 U JP3002163 U JP 3002163U
- Authority
- JP
- Japan
- Prior art keywords
- tube
- catheter
- diameter side
- outer diameter
- inner diameter
- 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 - Lifetime
Links
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
(57)【要約】
【目的】 この考案は，カテーテルチューブを二重構
造にすることにより，チューブの強度や，刺し入れ時の
抵抗を少なくすることを目的とした物である。
【構成】 カテーテルチューブ１を，外径側に硬いチ
ューブ７，内径側に柔らかいチューブ６を組み合わせて
二重構造にし，外径側のチューブの先端８を，内径側の
チューブを包み込むように絞り込んだもの。
(57) [Summary] [Objective] The present invention aims to reduce the strength of the tube and the resistance during puncturing by making the catheter tube a double structure. [Structure] The catheter tube 1 has a double structure by combining a hard tube 7 on the outer diameter side and a soft tube 6 on the inner diameter side, and the tip 8 of the outer diameter side tube is narrowed down so as to wrap the inner diameter side tube. thing.
Description
【０００１】 ［産業上の利用分野］ この考案は，現在単一に製造されている医療用カテーテルチューブの素材を硬 軟の２種類を用いて二重構造にしたもので，このものは医療用のカテーテルチュ ーブ，人造血管用カテーテルチューブ，あるいは人工透析用器具類用カテーテル チューブとして好適に使用することができる。[Industrial field of application] [0001] This invention is a medical catheter tube that is currently manufactured in a single structure and has a double structure using two types of materials, hard and soft. It can be suitably used as a catheter tube of, a catheter tube for artificial blood vessel, or a catheter tube for instruments for artificial dialysis.
【０００２】 ［従来の技術］ 従来における血管留置カテーテル製品のチューブは，単一の素材からなり， その素材が軟質なので先端の形状加工が難しく，刺し入れ時の抵抗を小さくする 形状を作りにくいため，皮膚を突き刺すとき，皮膚の抵抗によりカテーテル最先 端部のまくれや破損が起き，刺し入れに難儀する。そのうえ，皮膚や血管が硬く なった患者に使用する際は，刺し入れる箇所にあらかじめメスにて皮膚を切開し 挿入するので，患者や医療関係者に多大な苦痛と困難を与えている。 また，チューブの素材が柔らかいため，ある弾力強度を保たせるため必然的に チューブの肉厚が太くなり，これも大きな苦痛や労力を与えている。しかも，こ れとは別の使用力法である留置したカテーテルのチューブを通して血管造影剤な どを送り込むときには、使用する用具のチューブそれぞれが柔らかく細いため， 湾曲やネジレがおきやすく，スムースに送り込めない問題も生じている。[Prior Art] A conventional tube for an indwelling catheter product is made of a single material, and since the material is soft, it is difficult to shape the tip, and it is difficult to form a shape that reduces resistance when piercing. When piercing the skin, the resistance of the skin causes the distal end of the catheter to be curled or damaged, making it difficult to pierce the skin. In addition, when it is used on patients with hardened skin or blood vessels, the skin is cut open with a scalpel in advance at the place to be inserted, which causes great pain and difficulty to patients and medical personnel. Moreover, since the material of the tube is soft, the tube thickness inevitably becomes thicker in order to maintain a certain elastic strength, which also causes great pain and labor. Moreover, when an angiographic agent or the like is sent through a tube of an indwelling catheter, which is a different method of use, since each tube of the tool used is soft and thin, it easily bends or twists and can be sent smoothly. There are also problems that do not exist.
【０００３】 ［考案が解決しようとする課題点］ 本案は，チューブを，外径側は滑性がありじん性に富む適度の硬度を持つ素材 ，内径側は適度に柔らかい素材を用いて二重構造にすることにより，それぞれの 肉厚を薄くすることを可能にさせ，その結果，外径は従来の単一構造のチューブ と同等かあるいはそれ以下の太さにすることが出来た。これにより，硬いチュー ブの場合の途中での折れを防ぐことも出来た。また，柔らかいチューブの場合の 先端部のマクレや中間での屈曲，湾曲，ネジレをも防ぐことができる。更に，外 側のチューブを、加熱したダイスにて内側のチューブを包み込むように絞り込む ことにより金属性の針の先導を浮け，スムースに皮膚を通して血管に刺し入れる ことが可能になる。これにより、これまでの不必要な大きな苦痛や労力を患者や 関係者に与えずに済む新しいタイプのカテーテルチューブを提供することを目的 としてなされたものである。。[Problems to be Solved by the Invention] In the present invention, a tube is made of a material having an appropriate hardness that is smooth and tough on the outer diameter side and has an appropriate hardness on the outer diameter side, and an appropriately soft material on the inner diameter side. The use of a structure made it possible to reduce the wall thickness of each, and as a result, the outer diameter could be made equal to or smaller than that of a conventional single-structure tube. As a result, it was possible to prevent breakage in the middle of a hard tube. In addition, it is possible to prevent the scraping of the tip of the soft tube and the bending, bending, and twisting in the middle. Furthermore, by narrowing the outer tube so that it wraps the inner tube with a heated die, the lead of the metallic needle can be floated, and it is possible to smoothly insert the needle through the skin and into the blood vessel. The purpose of this is to provide a new type of catheter tube that does not give the patient and related persons the great pain and labor necessary for the past. .
【０００４】 ［課題を解決するための手段］ 本案は，医療用カテーテルの素材及び機能について鋭意研究を重ねた結果，先 端を自由に加工でき，しかも金属性の針の機能をある程度持っている硬い樹脂を 外径側に用い，内径側に柔軟な樹脂を用いることにより，その目的を達成しうる ことを見出し，この知見に基づいて本案をなすに至った。[Means for Solving the Problems] The present proposal, as a result of earnest studies on the material and function of a medical catheter, has the ability to freely process the tip and has a function of a metallic needle to some extent. We have found that the purpose can be achieved by using a hard resin on the outer diameter side and a flexible resin on the inner diameter side, and based on this finding, we made the present proposal.
【０００５】 ［作用］ 本案は，カテーテル１の外径側７と内径側６とでなり，先端部８は，外径側７ が硬い素材であるためテーパー形状が加熱したダイスで容易に加工できることと 相まって，金属性の針２の先導で容易に刺入できる。[Operation] The present invention consists of the outer diameter side 7 and the inner diameter side 6 of the catheter 1, and since the outer diameter side 7 of the tip portion 8 is a hard material, the tapered shape can be easily processed with a heated die. Coupled with this, it can be easily inserted by the leading of the metallic needle 2.
【０００６】 ［実施例］ なお，本案の実施にあたって次のことができる。 カテーテル１は，カテーテルハブ３に接着されており，これに針２を通しカテ ーテルハブと内針ハブ４とを接続し固定し、更にアダプター５によって他器具と カテーテル全体とを接続したものを血管に挿入し使用する。[Embodiment] In implementing the present invention, the following can be performed. The catheter 1 is adhered to the catheter hub 3, the needle 2 is passed through the catheter hub 3 to connect and fix the catheter hub and the inner needle hub 4, and the adapter 5 is used to connect another device and the entire catheter to the blood vessel. Insert and use.
【０００７】 ［考案の効果］ 従って，スムーズに無理なく，皮膚，血管に刺し入れられる。[Advantage of Invention] Therefore, the device can be smoothly and reasonably inserted into the skin and blood vessels.
【図１】本考案の実施例を示す平面図。FIG. 1 is a plan view showing an embodiment of the present invention.
【図２】カテーテルに金属針を挿入組み入れた先端部分
図。FIG. 2 is a partial front view showing a metal needle inserted and incorporated into a catheter.
【図３】カテーテルチューブの横方向の断面図FIG. 3 is a lateral cross-sectional view of a catheter tube.
【図４】カテーテルチューブの縦方向の断面図。FIG. 4 is a longitudinal sectional view of a catheter tube.
１はカテーテルチューブ ２は金属針 ３はカテーテルハブ ４は金属針ハブ ５はアダプター ６は内径側カテーテルチューブ ７は外径側カテーテルチューブ ８は絞られたカテーテルチューブ先端 1 is a catheter tube 2 is a metal needle 3 is a catheter hub 4 is a metal needle hub 5 is an adapter 6 is an inner diameter side catheter tube 7 is an outer diameter side catheter tube 8 is a narrowed catheter tube tip
Claims (1)
用する種々のカテーテル製品におけるチューブ構成を内
径側と外径側，それぞれに異なった特性を持つ素材を二
重構造にした血管留置カテーテル用のチューブ。1. A vascular indwelling catheter having a double structure made of materials having different tube structures on the inner diameter side and the outer diameter side of various catheter products to be inserted into a blood vessel and used for a long time. Tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1994004412U JP3002163U (en) | 1994-03-18 | 1994-03-18 | Tube for indwelling vascular catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1994004412U JP3002163U (en) | 1994-03-18 | 1994-03-18 | Tube for indwelling vascular catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3002163U true JP3002163U (en) | 1994-09-20 |
Family
ID=43138132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1994004412U Expired - Lifetime JP3002163U (en) | 1994-03-18 | 1994-03-18 | Tube for indwelling vascular catheter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3002163U (en) |
-
1994
- 1994-03-18 JP JP1994004412U patent/JP3002163U/en not_active Expired - Lifetime
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