JPS6470066A - Preparation of tube for blood circuit - Google Patents
Preparation of tube for blood circuitInfo
- 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
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.
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)
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)
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 |
-
1987
- 1987-09-11 JP JP62227965A patent/JP2534875B2/en not_active Expired - Lifetime
Patent Citations (5)
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)
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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