Development of manufacturing system of micro medical forceps as 0.3mm in diameter aiming
| Project/Area Number |
16560101
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Production engineering/Processing studies
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| Research Institution | Kanagawa University |
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Principal Investigator |
AOKI Isamu Kanagawa University, Dept., Mechanical Eng., Professor, 工学部, 教授 (30011159)
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| Co-Investigator(Kenkyū-buntansha) |
SASADA Masahiro Kanagawa University, Dept., Mechanical Eng., Research Associate, 工学部, 助教 (80333152)
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| Project Period (FY) |
2004 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2006: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2005: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2004: ¥1,800,000 (Direct Cost: ¥1,800,000)
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| Keywords | material processing / medical forceps / medical treatments / biopsy / endoscope / press working / Press shearing / 低侵襲医療 / ワーキングチャンネル / 型成形 / 組立作業 |
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| Research Abstract |
1. Purpose and Back ground of this research
Medical examinations and treatments using endoscopes are becoming increasing common due to their minimally invasive nature. Many types of medical devices for endoscopic therapy are available, and of these, forceps are most frequently used. The size of forceps is over 1.2mm, and then development of fabrication on more small sized forceps such as 0.3mm will contribute for micro medical treatment. Furthermore, the forceps prices are on the whole high, and one of the reasons for this can be attributed to the manufacturing method. Currently forceps parts are made by cutting or metal removal process. By replacing these methods with die forming, stable supply at low costs should be possible. The object of this research is developing a manufacturing method of forceps by die forming method in order to reducing the manufacturing cost and miniaturization.
2. Research results
In this study, for medical forceps, grasping jaw part (size is 0.3mm and 1.0mm), shape design, strength analysis, and die forming procedures are planned. Micro forceps of with 0.3mm, 1.0mm jaw was completely assembled with the other parts and their function were confirmed. Furthermore followings are obtained as the results of above case study.
(1) For the jaw which is usually most difficult to form, a. die forming method using a progressive die was proposed, and experiments showed that the method is feasible.
(2) A method for correcting the jaw shape was proposed.
(3) A method for evaluating the strength of the jaw was proposed.
(4) A method for assembling forceps using spring ring, friction welding is tried. Furthermore automatic assembling method is proposed.
In future works, problems occurring in actual medical treatments using forceps will need to be reviewed.
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Report
(4 results)
Research Products
(21 results)
