JPS6121420B2 - - Google Patents
Info
- Publication number
- JPS6121420B2 JPS6121420B2 JP57159658A JP15965882A JPS6121420B2 JP S6121420 B2 JPS6121420 B2 JP S6121420B2 JP 57159658 A JP57159658 A JP 57159658A JP 15965882 A JP15965882 A JP 15965882A JP S6121420 B2 JPS6121420 B2 JP S6121420B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- tip
- elastic modulus
- medical
- catheter
- 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
Links
- 229920005989 resin Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000012805 post-processing Methods 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000002184 metal Substances 0.000 description 6
- 206010016717 Fistula Diseases 0.000 description 5
- 230000003890 fistula Effects 0.000 description 5
- 210000000056 organ Anatomy 0.000 description 5
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 210000000941 bile Anatomy 0.000 description 3
- 210000000013 bile duct Anatomy 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 description 1
- 241001631457 Cannula Species 0.000 description 1
- 206010023126 Jaundice Diseases 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 210000003445 biliary tract Anatomy 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000002350 laparotomy Methods 0.000 description 1
- 238000002690 local anesthesia Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
Description
【発明の詳細な説明】
本発明は医療用チユーブ状製品、例えばカニユ
ーレ、カテーテル、その他各種の医療用チユーブ
類に関するものである。更に詳しく述べれば、少
なくとも先端部が部分的に弾性率が向上されてお
り、人体の器官、臓器に直接または経皮的に挿入
する場合、優れた特徴を発揮することのできる熱
可塑性軟質樹脂製医療用カニユーレ、カテーテル
もしくはチユーブ類に関するものである。周知の
ごとく医療分野には軟質塩化ビニル樹脂をはじめ
として、熱可塑性軟質樹脂は主としてチユーブ状
の形状で広く使用されている。例えばカテーテ
ル、ドレーンチユーブとしては先端を直角切断し
たり斜角切断したものや、先端を封止加工したり
して側孔を設けてあるのが一般的な形状である。
また先端部のみを細管化して器官、臓器等への挿
入を容易にしたものも知られている。これ等医療
用チユーブ状製品は、一般的には器官、臓器に傷
をつけないよう先端部をなめらかに仕上げられて
いる。しかしながら狭溢な器官に挿入する場合や
経皮的に挿入するチユーブ類にあつては、上述し
た加工仕上げ程度では不十分であつて、挿入時に
先端が変形したり座屈したりする危険性があり、
医療従事者がより安全に挿入が行なわれるように
術式を工夫したりして余分な細心の注意を払わな
ければならない欠点があつた。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to medical tube-like products such as cannulae, catheters, and various other medical tubes. More specifically, it is made of thermoplastic soft resin, which has improved elasticity at least partially at the tip and exhibits excellent characteristics when inserted directly or percutaneously into organs of the human body. It relates to medical cannulae, catheters or tubes. As is well known, thermoplastic soft resins, including soft vinyl chloride resins, are widely used in the medical field, mainly in the form of tubes. For example, catheters and drain tubes generally have a shape in which the distal end is cut at a right angle or an oblique angle, or the distal end is sealed and a side hole is provided.
There are also known devices in which only the tip portion is made into a thin tube to facilitate insertion into organs, organs, etc. These medical tube-shaped products generally have a smooth tip so as not to damage organs. However, for tubes that are inserted into narrow organs or inserted percutaneously, the above-mentioned processing and finishing may not be sufficient, and there is a risk that the tip may deform or buckle during insertion. ,
The drawback was that medical personnel had to take extra care by devising surgical techniques to ensure safer insertion.
本発明はこれらの欠陥改良に関するものであ
り、医療用チユーブ状製品の先端部をなめらかに
仕上げると共に、更に先端部とか、先端部からや
や離れた部分等を部分的に弾性率を向上させて半
硬質化ないしは硬質化した医学治療上、扱い易
く、安全なカニユーレ、カテーテル及びその他の
医療用チユーブ類を提供することを主要な目的と
する。 The present invention relates to improving these defects, and in addition to making the tip of a medical tube-shaped product smooth, it also partially improves the elastic modulus of the tip and a portion slightly distant from the tip to make it semi-finished. The main object of the present invention is to provide cannulas, catheters, and other medical tubes that are hardened or hardened and are easy to handle and safe for medical treatment.
先端部のみを硬質化する方法としては、先端部
のみを弾性率の高い硬質材料でチユーブ本体とは
別に成型し、それを軟質チユーブに接続して取付
けた医療用チユーブは知られているが、この構成
では人体に使用する場合、万が一の欠落の危険性
があり、また取付け部をなめらかに仕上げ、確実
に保持することには多大の努力を要するし、接続
加工の複雑さ及び信頼性向上のため生産コストが
大きくなる欠点がある。 As a method of hardening only the tip, a medical tube is known in which the tip is molded separately from the tube body using a hard material with a high modulus of elasticity, and then attached by connecting it to a soft tube. When this configuration is used on the human body, there is a risk of it breaking off, and it requires a great deal of effort to finish the attachment part smoothly and securely hold it, and it also increases the complexity of the connection process and improves reliability. This has the disadvantage of increasing production costs.
又先端部のみを硬質化する別の方法としては、
押出成形時に物理的特性の異なる２種類の材料を
交互に供給して軸手長さ方向にわたつて異なる特
性を有するチユーブを一体的に製作する方法があ
り、例えば特公昭54−8036号公報に述べられてい
るが、成形を制御する機構が複雑になる欠点があ
り、更に２種類の物理特性の異なる材料が合体す
る領域が広く、いわばチユーブの軸手長さ方向に
３種類以上の物理特性の異なる部分が必然的に発
生し、なだらかな物理特性の変化しか得られな
ず、又各種の複雑な形状のチユーブ状製品にはそ
の複雑な成形操作から精度よく応用することは現
実的には不向きな欠点がある。 Another method of hardening only the tip is
There is a method of integrally manufacturing a tube with different properties along the axial length direction by alternately supplying two types of materials with different physical properties during extrusion molding. However, it has the drawback that the mechanism for controlling the forming becomes complicated, and the area where two types of materials with different physical properties are combined is wide, so to speak, there are three or more types of materials with different physical properties in the longitudinal direction of the tube. In reality, it is not suitable for accurate application to tube-shaped products with various complicated shapes due to the complicated molding operations. There are drawbacks.
本発明によれば、あらかじめ弾性率が20Kg／mm2
以下の熱可塑性軟質樹脂を用いて同一材料で一体
的に成形されたチユーブ状成形物に対して、該成
形物の全長の1/2以内の範囲で、少なくとも先端
部を含む前方部の一部分に、後加工手段によつて
弾性率が50Kg／mm2以上になるように半硬質化ない
しは硬質化処理が施こされていることを特徴とす
る医療用チユーブ状製品である。 According to the present invention, the elastic modulus is 20Kg/mm 2 in advance.
For tube-shaped molded products that are integrally molded using the same material using the following thermoplastic soft resins, at least a portion of the front part including the tip within 1/2 of the total length of the molded product. This medical tube-shaped product is characterized by being semi-hardened or hardened by post-processing so that the modulus of elasticity becomes 50 Kg/mm 2 or more.
弾性率20Kg／mm2以下の樹脂とは、チユーブ状で
折曲げ可能な柔軟性があり、所謂医療用チユーブ
として使用可能領域に属する。弾性率50Kg／mm2以
上とは、感触的に固い材料に属し、もはや単独で
は医療用チユーブとしては剛性が強すぎる領域で
あるが、20Kg／mm2以下の軟質チユーブの一部分を
部分的に弾性率を50Kg／mm2以上に改質することに
よつて有益な医療用チユーブ状製品が得られる。
部分的な硬質化の為の弾性率の向上比率は元の材
料の弾性率に対して少なくとも３倍以上、好まし
くは５倍から30倍、更に好ましくは10倍から20倍
程度である。 A resin with an elastic modulus of 20 Kg/mm 2 or less is flexible enough to be bent into a tube shape, and belongs to the range that can be used as a so-called medical tube. An elastic modulus of 50 Kg/mm 2 or more belongs to materials that are hard to the touch, and is too rigid to be used alone as a medical tube. By modifying the ratio to 50 Kg/mm 2 or more, a useful medical tube product can be obtained.
The improvement ratio of the elastic modulus for partial hardening is at least 3 times or more, preferably 5 to 30 times, more preferably about 10 to 20 times the elastic modulus of the original material.
ここでいう弾性率とは、JIS−Ｋ−7113「プラ
スチツクの引張試験方法」に規定されている２号
型ダンペルを使用し、引張速度１±0.5mm／分で
測定した引張弾性率を指す。弾性率は荷重−伸び
線図の始めの直線部分において、直線部分に対応
する荷重の差を、これに対応する伸びの差で割つ
て計算する。この場合、荷重の差とは荷重（Kg）
を試験片の元の断面積（mm2）で除した値の差であ
り、伸びの差とは荷重下の伸び測定に使用した２
つの定点間長さの増加量を元の長さで除し、その
結果をKg／mm2で表わす。 The elastic modulus here refers to the tensile elastic modulus measured at a tensile rate of 1±0.5 mm/min using a No. 2 type damper specified in JIS-K-7113 "Plastic tensile test method". The elastic modulus is calculated by dividing the difference in load corresponding to the straight line part by the difference in elongation corresponding to the straight line part at the beginning of the load-elongation diagram. In this case, the difference in load is the load (Kg)
divided by the original cross-sectional area (mm 2 ) of the specimen, and the difference in elongation is the difference in elongation between the two
Divide the increase in length between two fixed points by the original length and express the result in Kg/mm 2 .
本発明でいう熱可塑性軟質樹脂とは、弾性率が
20Kg／mm2以下の樹脂であつて、医療分野で多用さ
れる可塑化塩化ビニル樹脂をはじめとして、ポリ
エチレン樹脂、エチレン−酢酸ビニル共重合体、
エチレン−エチルアクリレート共重合体、スチレ
ン−ブタジエン共重体、ポリウレタン樹脂等であ
つて、一体的に成形されたものが利用される。ま
た医療用チユーブ製品には一般にチユーブ断面の
一部分にチユーブ軸長手方向に連続的にレントゲ
ン線で造影できるように、Bi2O3やBaSO4粉末等
のレントゲン線不透過材料が混入したラインを二
色押出成形で導入するが、本発明はこれ等レント
ゲン線造影ライン入りチユーブ製品にも適用する
ことができる。 The thermoplastic soft resin referred to in the present invention has an elastic modulus of
20Kg/mm2 or less resin, including plasticized vinyl chloride resin, which is often used in the medical field, polyethylene resin, ethylene-vinyl acetate copolymer,
Ethylene-ethyl acrylate copolymer, styrene-butadiene copolymer, polyurethane resin, etc., which are integrally molded, are used. In addition, medical tube products generally have two lines mixed with an X-ray opaque material such as Bi 2 O 3 or BaSO 4 powder in a part of the cross section of the tube to enable continuous X-ray imaging in the longitudinal direction of the tube axis. Although introduced in color extrusion molding, the present invention can also be applied to tube products with X-ray contrast lines.
本発明でいう後加工により部分的に弾性率を50
Kg／mm2以上の半硬質化ないしは硬質化処理する方
法は、例えば架橋法である。 The elastic modulus is partially reduced to 50 by post-processing in the present invention.
A method for semi-hardening or hardening treatment to a degree of Kg/mm 2 or more is, for example, a crosslinking method.
これは部分的にガンマー線や電子線等の放射線
を少なくとも15メガラツト以上照射することによ
つて達成できる。その他の例としては塗装法であ
る。これはチユーブ本体よりも著しく弾性の高い
樹脂を部分的に塗装し密着さすか、加熱や紫外線
で硬化する樹脂を塗布し硬化さすことによつて本
発明の目的とする製品を得ることができる。 This can be achieved by partially irradiating at least 15 Megarats with radiation such as gamma rays or electron beams. Another example is painting. The object of the present invention can be obtained by partially coating the tube with a resin that has significantly higher elasticity than the tube body and sticking it tightly together, or by applying a resin that hardens with heat or ultraviolet rays and curing it.
本発明による部分的に硬化した医療用チユーブ
状製品は多方面に応用することができる。医療用
チユーブ製品は一般に先端部は口径を細化した
り、斜めカツトしたり、先端を封じたりしてなめ
らかに仕上げられており、側孔を設けたり、レン
トゲン線不透過ラインを設けることも一般的に行
われているが、本発明によればこれ等いずれの形
状品にも適用でき、先端部のなめらかな仕上げも
損うことなく後加工処理が行われる。一体的に成
形されたチユーブ状物の全長の1/2以内の範囲
で、少なくとも先端部、好ましくは先端から50mm
以内の範囲を含む部分の材質の弾性率が50Kg／mm2
以上の半硬質ないしは硬質になるように硬質化処
理が施されているので、全体としては一体的で弾
性率のみが部分的に変化した製品が得られるの
で、部分硬化部のみが使用中に脱落する危険性も
なく、より安全で使い易い医療用チユーブ製品が
提供できる。 The partially cured medical tube product according to the invention has many applications. Medical tube products generally have a smooth finish by narrowing the diameter, cutting diagonally, or sealing the tip, and it is also common to have a side hole or an X-ray opaque line. However, according to the present invention, it can be applied to any of these shapes, and post-processing can be performed without damaging the smooth finish of the tip. Within 1/2 of the total length of the integrally molded tube, at least 50 mm from the tip, preferably from the tip.
The elastic modulus of the material of the part including the range within 50Kg/mm 2
Since the above hardening process is applied to make it semi-hard or hard, a product that is integral as a whole and only has a partially changed elastic modulus is obtained, so only the partially hardened parts will fall off during use. Medical tube products that are safer and easier to use can be provided without the risk of
本発明の実施例の一つに経皮的経肝胆道鏡検査
法や経皮的経肝胆道ドレナージ法に使用する
PTCSカテーテルがある。従来から閉寒性黄疸軽
減を図る術式として、胆汁を体外に排出する目的
で外科的開腹手術を施すこと無く経皮的に穿刺針
を胆管に挿入し、胆汁排出用のカテーテルを留置
するが、更には胆道内視鏡を挿入して内視鏡観察
や生検、截石術を施すにはカテーテルを順次太い
ものに交換して行き瘻孔を大きくすることが必要
となる。漸次太いフレンチサシズのカテーテルを
それよりも小さな瘻孔に挿入して行くのであるか
ら、何よりも挿入の容易な先端形状である必要が
ある。第１図には本発明の一実施例となるPTCS
カテーテル１０の全体図を示す。PTCSカテーテ
ル１０は長さ60cmで、レントゲン線不透過ライン
１２が二色押出成形で一体的に成形された弾性率
5.2Kg／mm2の軟質塩化ビニル樹脂製チユーブ１１
から構成される。チユーブ１１は均等な外径を持
つたチユーブの両端部がそれぞれ外径が異なつた
一体成形品から構成されており、接続端部１５は
ルアーコネクターを差し込み接続することが出来
るようラツパ状に外径を拡大し、先端部１３は逆
にテーパー状に細管化され、胆汁を排出するため
に側孔１４が２ケ所設けられている。先端部１３
がテーパー状に細管化されているのは瘻孔への挿
入を容易にするために形状であるが、逆に必然的
にチユーブの肉厚が薄くなつており、未処理その
ままではチユーブを瘻孔に差し込んだ場合、先端
が折れ曲がつたり、座屈しやすい。本発明による
PTCSカテーテル１０においては、先端部１３の
斜線部分は部分的に弾性率が85Kg／mm2に硬化処理
が施されており、瘻孔を通じて胆管までチユーブ
を挿入する場合、先端部１３がチユーブ本体より
も剛性が高いので先端が座屈することもなく、ス
ムースに挿入でき、医療従事者にとつて取扱い易
いPTCSカテーテルが提供できる。 In one embodiment of the present invention, it is used for percutaneous transhepatic cholangioscopy and percutaneous transhepatic biliary drainage.
There is a PTCS catheter. Traditionally, as a surgical method to alleviate retentive jaundice, a puncture needle is percutaneously inserted into the bile duct and a catheter for bile drainage is placed in the bile duct without performing a surgical laparotomy in order to drain bile from the body. Furthermore, in order to insert a biliary tract endoscope and perform endoscopic observation, biopsy, and litholithotomy, it is necessary to gradually change the catheter to a thicker one and enlarge the fistula. Since progressively thicker French sash catheters are inserted into smaller fistulas, the tip shape needs to be easy to insert. Figure 1 shows a PTCS that is an embodiment of the present invention.
An overall view of the catheter 10 is shown. The PTCS catheter 10 has a length of 60 cm, and the X-ray radiopaque line 12 has an elastic modulus that is integrally molded by two-color extrusion molding.
5.2Kg/mm 2 soft vinyl chloride resin tube 11
It consists of The tube 11 is made of an integrally molded product with an equal outer diameter, but both ends of the tube have different outer diameters, and the connecting end 15 has an outer diameter that is rounded so that a luer connector can be inserted and connected. The distal end 13 is conversely tapered into a narrow tube, and two side holes 14 are provided for discharging bile. Tip part 13
The tapered shape of the tube makes it easier to insert it into the fistula, but on the other hand, the wall thickness of the tube is inevitably thinner, so if it is left untreated, it will be difficult to insert the tube into the fistula. If so, the tip is likely to bend or buckle. According to the present invention
In the PTCS catheter 10, the shaded part of the distal end 13 is partially hardened to have an elastic modulus of 85 kg/mm 2 , so that when inserting the tube through the fistula to the bile duct, the distal end 13 is lower than the main body of the tube. Due to its high rigidity, the tip does not buckle and can be inserted smoothly, making it possible to provide a PTCS catheter that is easy to handle for medical professionals.
本発明による他の実施例として、胸腔穿刺、排
液及び排気を目的として金属針と外套カテーテル
から構造されるトロカールカテーテルがある。本
品は刺入部位に局所麻酔を行い皮膚に小切開を加
えてトロカールカテーテルを穿刺し、目的の体腔
に到達すれば内針を引き抜けば、そのまま体胸ド
レーンチユーブとなるものである。第２図には本
発明の他の実施例となるトロカールカテーテル２
０の断面図を示すが、金属針２１は丸棒状形状で
あつて、その先端は鋭角の針先２２になつてお
り、外套チユーブ２４をフツクするための段差２
２が設けられ、他端には球状のグリツプ２３が固
定されており、金属針２２の外側には先端が開口
で内側に金属針の段差２２にフツクされるよう内
径を小さくした長さ約５mmの段差２５と体液の排
出のために側孔２６が設けられ、他端２７が他の
チユーブとの接続のためラツパ状に開口した外套
チユーブ２４が装着された構成になつている。外
套チユーブ２４は体腔内に留置されているので、
弾性率20Kg／mm2以下の軟質樹脂の使用が好まし
く、軟質塩化ビニル樹脂やエチレン−酢酸ビニル
共重合体、もしくはウレタン樹脂が使用され、先
端の斜線部分が弾性率100Kg／mm2に硬質化されて
いる。トロカールカテーテル２０は外套チユーブ
２４を金属針２１に装着したままの状態でグリツ
プ２３を押して体腔に圧入され、この時外套チユ
ーブ２４に付加される応力は先端内側の段差２５
に集中されるが、この部分を硬質化してあるので
段差２５と２２のフツクが確実で離脱することも
なく安全で穿刺性に優れたものとなる。しかも外
套チユーブ２４の本体は軟質であるので体腔に留
置した時の患者の苦痛も少ない取扱い易いトロカ
ールカテーテルとなる。 Another embodiment according to the invention is a trocar catheter constructed from a metal needle and a cannula catheter for the purpose of thoracentesis, drainage and evacuation. With this product, local anesthesia is applied to the insertion site, a small incision is made in the skin, a trocar catheter is inserted, and once the target body cavity is reached, the inner needle is pulled out and the catheter becomes a chest drain tube. FIG. 2 shows a trocar catheter 2 which is another embodiment of the present invention.
0, the metal needle 21 is in the shape of a round bar, and its tip is an acute-angled needle point 22, and there is a step 2 for hooking the mantle tube 24.
A spherical grip 23 is fixed to the other end of the metal needle 22, and the tip is open on the outside of the metal needle 22, and the inner diameter is reduced so that it can be hooked onto the step 22 of the metal needle, and the length is about 5 mm. A step 25 and a side hole 26 are provided for discharging body fluids, and a mantle tube 24 having a flap-like opening at the other end 27 for connection to another tube is attached. Since the mantle tube 24 is placed in the body cavity,
It is preferable to use a soft resin with an elastic modulus of 20 Kg/mm 2 or less, such as a soft vinyl chloride resin, ethylene-vinyl acetate copolymer, or urethane resin, and the shaded part at the tip is hardened to an elastic modulus of 100 Kg/mm 2. ing. The trocar catheter 20 is press-fitted into the body cavity by pressing the grip 23 with the mantle tube 24 attached to the metal needle 21, and the stress applied to the mantle tube 24 at this time is due to the step 25 inside the tip.
However, since this part is hardened, the hooks of the steps 25 and 22 are secure and will not come off, making it safe and having excellent puncturing properties. Moreover, since the body of the mantle tube 24 is soft, the trocar catheter is easy to handle and causes less pain to the patient when placed in a body cavity.
第１図は本発明の実施例であるPTCSカテーテ
ルの全体図を示す。第２図は本発明の実施例であ
るトロカールカテーテルの断面図を示す。
FIG. 1 shows an overall view of a PTCS catheter that is an embodiment of the present invention. FIG. 2 shows a cross-sectional view of a trocar catheter that is an embodiment of the present invention.
Claims (1)
形された弾性率20Kg／mm2以下の熱可塑性軟質樹脂
より成るチユーブ状成形物であつて、該成形物の
全長の1/2以内の範囲で、少なくとも先端部を含
む前方部の一部分を、後加工手段により弾性率が
50Kg／mm2以上としたことを特徴とする医療用チユ
ーブ状製品。1 A tube-shaped molded product made of a thermoplastic soft resin with an elastic modulus of 20 kg/mm 2 or less that is integrally molded by extrusion molding or injection molding, and within 1/2 of the total length of the molded product. , the elastic modulus of at least a portion of the front part including the tip is reduced by post-processing means.
A medical tube-shaped product characterized by a weight of 50Kg/mm 2 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57159658A JPS5949777A (en) | 1982-09-16 | 1982-09-16 | Medical tubular product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57159658A JPS5949777A (en) | 1982-09-16 | 1982-09-16 | Medical tubular product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5949777A JPS5949777A (en) | 1984-03-22 |
| JPS6121420B2 true JPS6121420B2 (en) | 1986-05-27 |
Family
ID=15698508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57159658A Granted JPS5949777A (en) | 1982-09-16 | 1982-09-16 | Medical tubular product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5949777A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011070844A1 (en) * | 2009-12-11 | 2011-06-16 | 株式会社グッドマン | Catheter |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05305143A (en) * | 1991-05-13 | 1993-11-19 | Sumitomo Bakelite Co Ltd | Medical catheter |
| JPH05305144A (en) * | 1991-05-13 | 1993-11-19 | Sumitomo Bakelite Co Ltd | Catheter for medical treatment |
| JP4754843B2 (en) * | 2005-02-21 | 2011-08-24 | 株式会社パイオラックスメディカルデバイス | catheter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5588771A (en) * | 1978-12-28 | 1980-07-04 | Toray Industries | Pricking needle in plastic that can easily be inserted |
| JPS5713036B2 (en) * | 1974-12-28 | 1982-03-15 | ||
| JPS5937390A (en) * | 1982-08-27 | 1984-02-29 | テルモ株式会社 | Tube made of soft vinyl chloride resin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS646835Y2 (en) * | 1980-06-24 | 1989-02-22 |
-
1982
- 1982-09-16 JP JP57159658A patent/JPS5949777A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713036B2 (en) * | 1974-12-28 | 1982-03-15 | ||
| JPS5588771A (en) * | 1978-12-28 | 1980-07-04 | Toray Industries | Pricking needle in plastic that can easily be inserted |
| JPS5937390A (en) * | 1982-08-27 | 1984-02-29 | テルモ株式会社 | Tube made of soft vinyl chloride resin |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011070844A1 (en) * | 2009-12-11 | 2011-06-16 | 株式会社グッドマン | Catheter |
| JP5497068B2 (en) * | 2009-12-11 | 2014-05-21 | 株式会社グツドマン | catheter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5949777A (en) | 1984-03-22 |
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