JP5147231B2 - 医療用チューブの押出成形用金型および押出成形方法 - Google Patents
医療用チューブの押出成形用金型および押出成形方法 Download PDFInfo
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- JP5147231B2 JP5147231B2 JP2006349617A JP2006349617A JP5147231B2 JP 5147231 B2 JP5147231 B2 JP 5147231B2 JP 2006349617 A JP2006349617 A JP 2006349617A JP 2006349617 A JP2006349617 A JP 2006349617A JP 5147231 B2 JP5147231 B2 JP 5147231B2
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- Prior art keywords
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- shape
- medical tube
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- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M2025/004—Multi-lumen catheters with stationary elements characterized by lumina being arranged circumferentially
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
- A61M25/001—Forming the tip of a catheter, e.g. bevelling process, join or taper
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/0029—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the middle part of the catheter, e.g. slots, flaps, valves, cuffs, apertures, notches, grooves or rapid exchange ports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
- B29L2031/7542—Catheters
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hematology (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- Pulmonology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- External Artificial Organs (AREA)
Description
Claims (5)
- 軟質の熱可塑性樹脂からなり内部に軸部を挟んで複数の流路が形成された医療用チューブを成形するための医療用チューブの押出成形用金型であって、
一方から他方に貫通する凹部が形成された金型本体と、
前記金型本体の凹部内に設置され前記凹部の内周面との間に前記軟質の熱可塑性樹脂からなる成形用材料を通過させる先細り円筒状の後部側成形空間部と、前記医療用チューブを形成するための断面形状を備えた先端側成形空間部とを形成するピンとを備え、
前記ピンの先端部を、軸方向に平行に配置された複数の棒状成形部からなるランド部で構成するとともに、前記複数の棒状成形部のうちの所定の棒状成形部の外周面に前記凹部の先端側部分の内周面に向かって突出する突起を設けて、
前記凹部の先端側部分の内周面と前記突起が設けられた棒状成形部とで周面が外部に連通する流路を形成し、前記凹部の先端側部分の内周面と前記突起が設けられていない棒状成形部とで周面が閉塞された流路を形成するようにし、
さらに、前記凹部の先端側部分の内周面と、前記ランド部の表面とで形成される前記先端側成形空間部の断面形状のうち、先端部の断面形状を前記医療用チューブの断面形状と同じにし、後部側部分の断面形状を前記先端側成形空間部の先端部の断面形状と前記後部側成形空間部の先端部の断面形状との中間の形状にしたことを特徴とする医療用チューブの押出成形用金型。 - 前記突起を前記棒状成形部の前端側に設けることにより、前記先端側成形空間部の後部側部分の断面形状を前記先端側成形空間部の先端部の断面形状と前記後部側成形空間部の先端部の断面形状との中間の形状にした請求項1に記載の医療用チューブの押出成形用金型。
- 前記金型本体における前記凹部の先端側に、前記医療用チューブの端面形状から前記周面が閉塞された流路に対応する部分を除去した形状の外面形成用凹部を備えたプレート部を設置して、前記突起が設けられていない棒状成形部を前記外面形成用凹部内まで延ばし、前記プレート部の外面形成用凹部と、前記外面形成用凹部内まで延びる棒状成形部とで形成される空間部を前記先端側成形空間部の先端部とした請求項1または2に記載の医療用チューブの押出成形用金型。
- 請求項1ないし3のうちのいずれか一つに記載の医療用チューブの押出成形用金型を用いて医療用チューブを成形する医療用チューブの押出成形方法であって、
前記金型本体の凹部内に前記ピンを設置して形成される先細り円筒状の後部側成形空間部内に前記軟質の熱可塑性樹脂からなる成形用材料を通過させて前記成形用材料を円筒状に形成する円筒形成工程と、
前記先端側成形空間部の後部側部分で、前記円筒形成工程で形成された成形用材料の断面形状をリング状と前記医療用チューブの断面形状との中間の形状に形成する中間形状形成工程と、
前記先端側成形空間部の先端部で、前記中間形状形成工程で形成された成形用材料の断面形状を前記医療用チューブの断面形状に形成する最終形状形成工程と
を備えたことを特徴とする医療用チューブの押出成形方法。 - 前記中間形状形成工程で形成される前記成形用材料の断面形状をリング状の内面に十字形の片の各先端部をそれぞれ連結して四つの流路を形成した形状にし、前記最終形状形成工程で形成される前記成形用材料の断面形状を前記リング状部分の所定部分を切り欠いて前記四つの流路のうちの少なくとも一つの流路を外部に連通させた形状にした請求項4に記載の医療用チューブの押出成形方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006349617A JP5147231B2 (ja) | 2006-12-26 | 2006-12-26 | 医療用チューブの押出成形用金型および押出成形方法 |
EP07123251A EP1938949A3 (en) | 2006-12-26 | 2007-12-14 | Mold for extrusion molding a medical application tube and extrusion molding method |
US11/961,229 US7682538B2 (en) | 2006-12-26 | 2007-12-20 | Method for extrusion molding a medical application tube |
US12/699,312 US8062019B2 (en) | 2006-12-26 | 2010-02-03 | Mold for extrusion molding a medical application tube and extrusion molding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006349617A JP5147231B2 (ja) | 2006-12-26 | 2006-12-26 | 医療用チューブの押出成形用金型および押出成形方法 |
Publications (2)
Publication Number | Publication Date |
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JP2008155571A JP2008155571A (ja) | 2008-07-10 |
JP5147231B2 true JP5147231B2 (ja) | 2013-02-20 |
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ID=39301070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2006349617A Expired - Fee Related JP5147231B2 (ja) | 2006-12-26 | 2006-12-26 | 医療用チューブの押出成形用金型および押出成形方法 |
Country Status (3)
Country | Link |
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US (2) | US7682538B2 (ja) |
EP (1) | EP1938949A3 (ja) |
JP (1) | JP5147231B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010005842A (ja) * | 2008-06-25 | 2010-01-14 | Nippon Sherwood Medical Industries Ltd | 医療用チューブを成形するための押出成形用金型および押出成形方法 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006060934A1 (de) * | 2006-12-20 | 2008-06-26 | Wolter, Dietmar F., Prof. Dr. | Saugdrainage mit einem antibakteriell wirkenden Materialdepot |
JP5147231B2 (ja) * | 2006-12-26 | 2013-02-20 | 日本コヴィディエン株式会社 | 医療用チューブの押出成形用金型および押出成形方法 |
US20090005762A1 (en) * | 2007-06-26 | 2009-01-01 | Vasu Nishtala | Bioabsorbable Drain Tube |
US9815223B2 (en) * | 2008-05-16 | 2017-11-14 | Gala Industries, Inc. | Method and device for extrusion of hollow pellets |
JP2011046047A (ja) * | 2009-08-26 | 2011-03-10 | Nippon Sherwood Medical Industries Ltd | 押出成形金型、押出成形装置および医療用チューブ |
US8439041B2 (en) * | 2010-03-31 | 2013-05-14 | Covidien Lp | Tracheal tube with scaffolding-supported wall |
US20120251790A1 (en) * | 2011-03-31 | 2012-10-04 | Nellcor Puritan Bennett Llc | Systems and methods for creating sharp features within a mold |
JP6186818B2 (ja) * | 2013-04-05 | 2017-08-30 | ニプロ株式会社 | ドレーンカテーテル |
CN103302836A (zh) * | 2013-05-17 | 2013-09-18 | 张李忠 | 一种使用低冷应力共挤模具生产塑钢型材的方法 |
BR112017005091A2 (pt) * | 2014-09-15 | 2017-12-05 | Gala Inc | método e dispositivo para extrusão de pellets ocos |
JP6365249B2 (ja) * | 2014-11-06 | 2018-08-01 | 住友ベークライト株式会社 | チューブ製造方法、インダイおよびチューブ製造装置 |
IT201600120563A1 (it) * | 2016-11-29 | 2018-05-29 | Gimac Di Maccagnan Giorgio | Estrusore per manufatti o micro-manufatti multi-lume con disposizione multi-coronale |
USD982427S1 (en) * | 2020-01-08 | 2023-04-04 | Art Guild, Inc. | Elongated tube |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US353681A (en) * | 1886-12-07 | Die for forming conduits or pipes | ||
US326865A (en) * | 1885-09-22 | Manufacture of coverings for steam-pi pes | ||
DE1061484B (de) * | 1955-01-11 | 1959-07-16 | Willy Ruesch | Spritzeinrichtung zur Herstellung von mehrlaeufigen Herzkathetern |
US4198367A (en) * | 1976-08-30 | 1980-04-15 | Burrell John R | Method and apparatus for producing retreading envelopes |
US4398910A (en) * | 1981-02-26 | 1983-08-16 | Blake L W | Wound drain catheter |
US4465481A (en) * | 1981-02-26 | 1984-08-14 | Innovative Surgical Products, Inc. | Single piece wound drain catheter |
JPH0611340B2 (ja) * | 1986-05-14 | 1994-02-16 | テルモ株式会社 | 医療器具導入針の製造方法および製造装置 |
US5116310A (en) * | 1990-07-30 | 1992-05-26 | Helix Medical, Inc. | Multiple lumen wound drain with bypass openings |
JPH05193975A (ja) * | 1991-08-29 | 1993-08-03 | Furukawa Electric Co Ltd:The | 押出し成形式多孔質光ファイバ母材製造装置 |
US6033204A (en) * | 1992-04-20 | 2000-03-07 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Flat blow molding machine, flat blow method and products of flat blow molding |
JP3418535B2 (ja) * | 1997-12-11 | 2003-06-23 | 住友ベークライト株式会社 | 断面形状可変押出成形用ダイ機構 |
JP3645781B2 (ja) * | 2000-03-27 | 2005-05-11 | 住友ベークライト株式会社 | 断面可変押出成形用ダイ |
JP2002240127A (ja) * | 2000-12-14 | 2002-08-28 | Sumitomo Bakelite Co Ltd | 断面形状可変押出成形用ダイ及びその成形品 |
JP3559247B2 (ja) * | 2001-03-23 | 2004-08-25 | 株式会社カネカメディックス | チューブの製造方法 |
US20030219559A1 (en) * | 2002-05-24 | 2003-11-27 | Charles Schryver | Hybrid extruded articles and method |
US7163388B2 (en) * | 2004-05-19 | 2007-01-16 | Cangen Holdings, Inc. | Method and apparatus for incorporating lumens into the wall of a tubular extrusion |
US7500842B2 (en) * | 2004-06-10 | 2009-03-10 | Pla Giken Co., Ltd. | Catheter molding apparatus |
JP5147231B2 (ja) * | 2006-12-26 | 2013-02-20 | 日本コヴィディエン株式会社 | 医療用チューブの押出成形用金型および押出成形方法 |
-
2006
- 2006-12-26 JP JP2006349617A patent/JP5147231B2/ja not_active Expired - Fee Related
-
2007
- 2007-12-14 EP EP07123251A patent/EP1938949A3/en not_active Withdrawn
- 2007-12-20 US US11/961,229 patent/US7682538B2/en active Active
-
2010
- 2010-02-03 US US12/699,312 patent/US8062019B2/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010005842A (ja) * | 2008-06-25 | 2010-01-14 | Nippon Sherwood Medical Industries Ltd | 医療用チューブを成形するための押出成形用金型および押出成形方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1938949A2 (en) | 2008-07-02 |
JP2008155571A (ja) | 2008-07-10 |
US20100136157A1 (en) | 2010-06-03 |
EP1938949A3 (en) | 2010-10-13 |
US8062019B2 (en) | 2011-11-22 |
US20080160124A1 (en) | 2008-07-03 |
US7682538B2 (en) | 2010-03-23 |
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