JP2519542B2 - Coating caterer - Google Patents
Coating catererInfo
- Publication number
- JP2519542B2 JP2519542B2 JP1261378A JP26137889A JP2519542B2 JP 2519542 B2 JP2519542 B2 JP 2519542B2 JP 1261378 A JP1261378 A JP 1261378A JP 26137889 A JP26137889 A JP 26137889A JP 2519542 B2 JP2519542 B2 JP 2519542B2
- Authority
- JP
- Japan
- Prior art keywords
- catheter
- silicone rubber
- coating
- tube
- fine powder
- 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
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は、医療を迅速かつ容易に行えるようにする
ために改良されたカテーテルに関するものである。Description: TECHNICAL FIELD The present invention relates to an improved catheter that enables medical treatment to be performed quickly and easily.
（従来の技術） 医療用カテーテル特に体内留置用のカテーテルの素材
としては、使用目的によって種々のものが用いられてい
るが、生体に刺激が少なく、体内留置が長期に及んでも
劣化しないという長所を有するシリコーンゴムを使用す
る場合の欠点として、柔らかいため浴にいう「腰がな
い」ので体内挿入に困難を伴う。又「腰のある」素材と
して塩化ビニル樹脂を挙げることができるがその欠点と
して該樹脂に配合されている可塑剤のため、生体への親
和性においてシリコーンゴムより劣る欠点がある。この
欠点は本来の医療目的を充分に満足させるものではな
く、前記「腰」の問題はカテーテルを使用する術者の慣
れ、或いはカテーテル挿入技術の向上によりシリコーン
ゴムの使用頻度が高くなっている。しかしながら、ここ
で挿入技術の向上とは、カテーテルの内腔にオリーブ油
等の滑剤を塗布し、ガイドワイヤー、スタイレット等を
予め嵌入してカテーテルを体内に挿入後これを抜去する
という姑息的な手段に過ぎない。そこで従来、シリコー
ンゴムチューブの外面又は内腔面に室温もしくは低温硬
化型シリコーンゴム又はシリコーンゴムのディスパージ
ョンが薄膜状にコーティングされ、該コーティング面に
シリコーン樹脂微粉末が固着されたカテーテル（昭和62
年特許願第25684号）等が提案されている。(Prior Art) Various materials are used as materials for medical catheters, particularly catheters for indwelling in the body, depending on the purpose of use, but they have the advantage that they are less irritating to the living body and do not deteriorate even if they are left in the body for a long time. As a drawback of using a silicone rubber having a, it is difficult to insert into the body because it is "stiff" because it is soft because it is soft. Further, a vinyl chloride resin can be mentioned as a "flexible" material, but its drawback is that it is inferior to silicone rubber in terms of biocompatibility due to the plasticizer compounded in the resin. This defect does not sufficiently satisfy the original medical purpose, and the problem of the "lumbar" is that the frequency of use of silicone rubber has increased due to the familiarity of the operator using the catheter or the improvement of the catheter insertion technique. However, the improvement of the insertion technique here means to apply a lubricant such as olive oil to the lumen of the catheter, insert a guide wire, a stylet, etc. in advance, insert the catheter into the body, and then remove it. Nothing more than. Therefore, conventionally, a catheter in which a room-temperature or low-temperature-curable silicone rubber or a dispersion of silicone rubber is coated in a thin film on the outer surface or inner surface of a silicone rubber tube, and the silicone resin fine powder is fixed to the coated surface (Showa 62)
Patent application No. 25684) has been proposed.
（解決しようとする課題） 上記従来のコーティングカテーテルの欠点は、シリコ
ーンゴムチューブにシリコーンゴムをコーティングする
工程の他にシリコーン樹脂微粉末を適量噴霧し、加硫硬
化してこれを固着する工程を要し、手間がかることにあ
るとともに、該固着が不十分なため、長期の使用に耐え
ないなどの品質のばらつきを生じないとは限らない点に
もある。又、素材としてシリコーンゴムに限定され、市
場への供給価格を安くすることが難しかった。本発明は
これらの問題点を解決するにある。(Problems to be Solved) A drawback of the above conventional coating catheter is that, in addition to the step of coating the silicone rubber tube with the silicone rubber, a step of spraying an appropriate amount of fine silicone resin powder, vulcanizing and curing it, and fixing the same. However, it is time-consuming, and since the fixing is not sufficient, there is a possibility that quality variations such as long-term use will not occur. Further, since the material is limited to silicone rubber, it is difficult to reduce the supply price to the market. The present invention is to solve these problems.
（課題を解決するための手段） そこで、本発明にあっては、シリコーンゴム微粉末の
固着工程を省略できるばかりでなく、よりカテーテル内
腔面の滑りをよくするため、鋭意試験研究した結果、 ア）合成樹脂製のカテーテルの内腔面にシリコーンゴム
をコーティングし加硫固着する工程のみとする イ）上記コーティング用シリコーンゴムには、無機又は
有機の微粉末を適量混合したものを用いる ことによって、目的を到達し得ることを発見した。(Means for Solving the Problems) Therefore, in the present invention, not only the fixing step of the silicone rubber fine powder can be omitted, but also the sliding of the catheter lumen surface is made better, so as a result of earnest test research, A) Only the step of coating the silicone rubber on the inner surface of the catheter made of synthetic resin and vulcanizing and fixing is performed. A) By using an appropriate amount of inorganic or organic fine powder mixed as the above-mentioned silicone rubber for coating. , Found that the purpose can be reached.
（実施例） 本発明の実施例を図面を用いて説明する。第１図はカ
テーテルの一例として示した気管内挿入用カテーテルの
外形模型図、第２図は該気管内挿入用カテーテルに本発
明を実施した場合の一例を第１図Ａ−Ａ線断面の端面図
として示したものである。カテーテルチューブ（大）１
はシリコーンゴムを円筒状に形成し、加硫硬化させたも
ので、その内腔面にシリコーンゴムと有機又は無機の微
粉末を混合したものをコーティング膜３の如く適宜の手
段で薄膜状にコーティングしてある（例えば、カテーテ
ルチューブ１に前記コーティング剤を満たして直立さ
せ、カテーテルチューブ１の内径より小さい直径で適宜
の重さを有する球などを上方より下方へ通過せしめれば
よい。なお、その場合、カテーテルチューブ１の下端か
らコーティング剤を吸引すれば、より容易にコーティン
グできる。）。(Example) The Example of this invention is described using drawing. FIG. 1 is a schematic model view of an endotracheal insertion catheter shown as an example of a catheter, and FIG. 2 is an example of a case in which the present invention is applied to the endotracheal insertion catheter. It is shown as a figure. Catheter tube (large) 1
Is a silicone rubber formed into a cylindrical shape and vulcanized and cured, and its inner surface is coated with a mixture of silicone rubber and organic or inorganic fine powder in a thin film form by an appropriate means such as the coating film 3. (For example, the catheter tube 1 may be filled with the coating agent to stand upright, and a ball having a diameter smaller than the inner diameter of the catheter tube 1 and having an appropriate weight may be passed downward from above. In this case, if the coating agent is sucked from the lower end of the catheter tube 1, the coating can be performed more easily.)
シリコーンゴムに混合する有機又は無機の微粉末は、
鋭意試験研究した結果、 ア）混合時に凝集することなく、 イ）加硫硬化してコーティング膜を形成した際にもむら
なく混在させることができる性質を有するもの が好ましいことがわかった。例えば炭酸カルシウム、水
酸化アルミニウム、テフロン粉末等が使用できるが、も
っとも好ましくはベントナイトであることもわかった。Organic or inorganic fine powder mixed with silicone rubber is
As a result of diligent tests, it was found that (a) those having a property that they are not aggregated during mixing and (b) that they can be mixed evenly when vulcanized and cured to form a coating film are preferable. For example, calcium carbonate, aluminum hydroxide, Teflon powder and the like can be used, but it has been found that bentonite is most preferable.
また、微粉末の粒径については、素材の性質によって
多少異なるので、一概に言えないが、好ましくは0.05乃
至30μのものである。Further, the particle size of the fine powder is somewhat different depending on the properties of the raw material, so it cannot be said unconditionally, but it is preferably 0.05 to 30 μm.
（発明の効果） 本発明の作用効果を検するため、シリコーンカテーテ
ル（以下Siと表示する）、塩化ビニールカテーテル（以
下PVCと表示する）及び本発明に係るコーティングカテ
ーテル（ベントナイト混合のもの。以下SiBと表示す
る）でそれぞれ内径3mmのものの内腔に、Si、PVC及びポ
リエチレンカテーテル（以下PEと表示する）でそれぞれ
外径2mmのものを嵌入通過させる場合の該嵌入各カテー
テルに対する荷重を置針式テンションゲージで計測した
結果は、次表のとおりである。(Effects of the Invention) In order to examine the effects of the present invention, a silicone catheter (hereinafter referred to as Si), a vinyl chloride catheter (hereinafter referred to as PVC), and a coating catheter according to the present invention (mixed with bentonite. Hereinafter referred to as SiB (Indicated by), the load on each catheter when Si, PVC and polyethylene catheters (hereinafter referred to as PE) with an outer diameter of 2 mm are inserted through the lumens of 3 mm in inner diameter, and the load is applied to each catheter. The table below shows the results measured with a gauge.
なお、同表中０°と表示する欄は前記各カテーテルを
曲げない場合、90°及び180°と表示する欄は前記各カ
テーテルを第３図及び第４図に示す状態におけるそれぞ
れの通過荷重を表示する。In the table, the column labeled 0 ° shows the passing load of each catheter in the state shown in FIGS. 3 and 4 when the catheter is not bent, and the columns labeled 90 ° and 180 ° show the passing load of each catheter. indicate.
例えば、気管内にカテーテルを挿入する場合、口腔内
から気道を通過させるまでに、気管内のカテーテルチュ
ーブが90°近く曲げられるので、上記試験結果から明ら
かなように、Siは滑性不良であり、またPVCでは医療上
好ましくないとき、SiBが極めて優れた効果をもたらす
ことが判明した。のみならず、前記のとおり、工程が簡
略化されているにも拘わらず、製品の品質にばらつきが
生じない長所を有する。 For example, when a catheter is inserted into the trachea, the catheter tube in the trachea is bent by about 90 ° before passing through the airway from the oral cavity, so Si shows poor lubricity, as is clear from the above test results. It was also found that SiB has an extremely excellent effect on PVC when it is medically unfavorable. In addition, as described above, there is an advantage that the quality of the product does not vary even though the process is simplified.
第１図は気管内挿入用カテーテルの外形模型図、第２図
はカテーテルチューブの内腔面に本発明を実施した１例
を示す第１図Ａ−Ａ線断面の端面図、第３図及び第４図
はカテーテルをそれぞれ90°又は180°折り曲げて細い
カテーテルチューブを挿入した状態を示す説明図であ
る。 １……カテーテルチューブ ２……アダプター ３……コーティング膜 ４……内腔 ５……カテーテル（細）FIG. 1 is a schematic model view of an endotracheal catheter, and FIG. 2 is an end view of a cross section taken along the line AA in FIG. 1 showing an example of carrying out the present invention on the inner surface of a catheter tube. FIG. 4 is an explanatory view showing a state in which the catheter is bent 90 ° or 180 ° and a thin catheter tube is inserted. 1 ... Catheter tube 2 ... Adapter 3 ... Coating film 4 ... Lumen 5 ... Catheter (thin)
Claims (3)
の微粉末を混合した合成樹脂をコーティングしたことを
特徴とするコーティングカテーテル1. A coating catheter characterized in that the inner surface of a synthetic resin tube is coated with a synthetic resin mixed with an inorganic or organic fine powder.
は有機の微粉末を混合したシリコーンゴムをコーティン
グしたことを特徴とするコーティングカテーテル2. A coating catheter characterized in that the inner surface of a silicone rubber tube is coated with a silicone rubber mixed with an inorganic or organic fine powder.
ナイトを混合したシリコーンゴムをコーティングしたこ
とを特徴とするコーティングカテーテル3. A coating catheter characterized in that the inner surface of a silicone rubber tube is coated with a silicone rubber mixed with bentonite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1261378A JP2519542B2 (en) | 1989-10-06 | 1989-10-06 | Coating caterer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1261378A JP2519542B2 (en) | 1989-10-06 | 1989-10-06 | Coating caterer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03123563A JPH03123563A (en) | 1991-05-27 |
| JP2519542B2 true JP2519542B2 (en) | 1996-07-31 |
Family
ID=17361018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1261378A Expired - Lifetime JP2519542B2 (en) | 1989-10-06 | 1989-10-06 | Coating caterer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519542B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008000287A (en) * | 2006-06-21 | 2008-01-10 | Terumo Corp | Sliding composition for coating medical appliance and medical appliance with sliding coat |
| CN111790883A (en) * | 2020-05-29 | 2020-10-20 | 宁波市佳利来机械制造有限公司 | High-strength explosion-proof pneumatic cylinder and die casting method thereof |
| WO2023281924A1 (en) * | 2021-07-06 | 2023-01-12 | 株式会社グッドマン | Coated tube manufacturing method and coated tube manufacturing apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6211441A (en) * | 1985-07-10 | 1987-01-20 | 富士システムズ株式会社 | Body inserting tube for laser operation |
-
1989
- 1989-10-06 JP JP1261378A patent/JP2519542B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03123563A (en) | 1991-05-27 |
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