CATHETER

To provide a catheter which can satisfy both tensile elongation properties and tensile strength and which includes in an inner layer thereof a PTFE tube having a smaller thickness.SOLUTION: A catheter 60 includes in an inner layer thereof a polytetrafluoroethylene (PTFE) tube having a thickness of 0...

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Bibliographische Detailangaben
Hauptverfasser:	MURATA TOMOYUKI, HORIBA KENICHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY DISINFECTION, STERILISATION, OR DEODORISATION OF AIR HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL
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Beschreibung
Zusammenfassung:	To provide a catheter which can satisfy both tensile elongation properties and tensile strength and which includes in an inner layer thereof a PTFE tube having a smaller thickness.SOLUTION: A catheter 60 includes in an inner layer thereof a polytetrafluoroethylene (PTFE) tube having a thickness of 0.005-0.04 mm, an inner diameter of 0.3-2.5 mm, and a tensile breaking elongation of 350% or more. In a temperature rising process in differential scanning calorimetry (DSC), a melting energy calculated from an endothermic peak of 370°C±5°C is 0.6 J/g or more.SELECTED DRAWING: Figure 2 【課題】引張伸び性および引張強度を両立させることができるとともに、肉厚がより薄いＰＴＦＥチューブを内層に備える、カテーテルを提供する。【解決手段】カテーテル６０は、肉厚が０．００５～０．０４ｍｍであって、内径が０．３～２．５ｍｍであって、３５０％以上の引張破断伸びを有し、かつ示差走査熱量測定（ＤＳＣ）の昇温過程において、３７０℃±５℃の吸熱ピークから算出される融解エネルギーが０．６Ｊ／ｇ以上であるポリテトラフルオロエチレン（ＰＴＦＥ）チューブを内層に備える。【選択図】図２