JPS6470066A - Preparation of tube for blood circuit - Google Patents

Preparation of tube for blood circuit

Info

Publication number
JPS6470066A
JPS6470066A JP62227965A JP22796587A JPS6470066A JP S6470066 A JPS6470066 A JP S6470066A JP 62227965 A JP62227965 A JP 62227965A JP 22796587 A JP22796587 A JP 22796587A JP S6470066 A JPS6470066 A JP S6470066A
Authority
JP
Japan
Prior art keywords
tube
blood
parts
blood circuit
synthetic resin
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.)
Granted
Application number
JP62227965A
Other languages
Japanese (ja)
Other versions
JP2534875B2 (en
Inventor
Yoshihisa Ishihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Medical Supply Corp
Original Assignee
Nippon Medical Supply Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Medical Supply Corp filed Critical Nippon Medical Supply Corp
Priority to JP62227965A priority Critical patent/JP2534875B2/en
Publication of JPS6470066A publication Critical patent/JPS6470066A/en
Application granted granted Critical
Publication of JP2534875B2 publication Critical patent/JP2534875B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • External Artificial Organs (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To prepare a tube for a blood circuit permitting the smooth flow of blood without generating the stagnation or turbulent flow of blood, by changing an extruding condition when the tube is molded by the melt extrusion of a synthetic resin to form parts having difference diameters to one tube. CONSTITUTION:A synthetic resin is heated to melting temp. or more in a molding machine to be extruded into a tubular shape from a die in a molten state. At this time, a hollow state is held by blowing gas in the extrudate but, when the pressure of flow rate of the gas is enhanced, the diameter of a tube is increased and the wall thickness thereof is decreased. Since the an extruding condition is correlated not only with the relation between the diameter and wall thickness of the tube but also with a synthetic resin to be used and the melting temp. thereof, the die of a molding machine or the like, a molding condition is determined in comparison with the shape of the tube to be manufactured. The obtained tube for a blood circuit is constituted of a fine diameter part 2 and two kinds of large diameter parts 3, 4 and the diameters are smoothly changed at the boundaries of the parts 2, 3, 4 and, therefore, the generation of the stagnation or turbulent flow of blood at said parts is reduced and a thrombus is hard to generate and the tube pref. as the blood circuit is obtained.
JP62227965A 1987-09-11 1987-09-11 Method for manufacturing tube for blood circuit Expired - Lifetime JP2534875B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62227965A JP2534875B2 (en) 1987-09-11 1987-09-11 Method for manufacturing tube for blood circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62227965A JP2534875B2 (en) 1987-09-11 1987-09-11 Method for manufacturing tube for blood circuit

Publications (2)

Publication Number Publication Date
JPS6470066A true JPS6470066A (en) 1989-03-15
JP2534875B2 JP2534875B2 (en) 1996-09-18

Family

ID=16869032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62227965A Expired - Lifetime JP2534875B2 (en) 1987-09-11 1987-09-11 Method for manufacturing tube for blood circuit

Country Status (1)

Country Link
JP (1) JP2534875B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002345950A (en) * 2001-05-25 2002-12-03 Kawasumi Lab Inc Ectosomatic circulation circuit, components for ectosomatic circulation circuit, method and device for producing the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854492U (en) * 1971-10-22 1973-07-13
JPS5644628A (en) * 1979-09-20 1981-04-23 Kasamatsu Kako Kenkyusho:Kk Continuous manufacturing method and apparatus for profile tube
JPS59193434U (en) * 1983-06-11 1984-12-22 株式会社　日本メデイカル・サプライ Negative pressure sensor for blood circuit
JPS607834A (en) * 1983-06-27 1985-01-16 株式会社島津製作所 Ultrasonic diagnostic apparatus
JPS6243720U (en) * 1985-09-04 1987-03-16

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854492U (en) * 1971-10-22 1973-07-13
JPS5644628A (en) * 1979-09-20 1981-04-23 Kasamatsu Kako Kenkyusho:Kk Continuous manufacturing method and apparatus for profile tube
JPS59193434U (en) * 1983-06-11 1984-12-22 株式会社　日本メデイカル・サプライ Negative pressure sensor for blood circuit
JPS607834A (en) * 1983-06-27 1985-01-16 株式会社島津製作所 Ultrasonic diagnostic apparatus
JPS6243720U (en) * 1985-09-04 1987-03-16

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002345950A (en) * 2001-05-25 2002-12-03 Kawasumi Lab Inc Ectosomatic circulation circuit, components for ectosomatic circulation circuit, method and device for producing the same

Also Published As

Publication number Publication date
JP2534875B2 (en) 1996-09-18

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