[특허]Endoscopic camera component manufacturing method

Endoscopic camera component manufacturing method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B22F-003/12 B22F-003/24 B22F-005/10 A61B-001/005 B23P-013/00 A61B-001/00 G02B-023/24 G02B-007/10
출원번호	US-0178321 (2011-07-07)
등록번호	US-8916090 (2014-12-23)
발명자 / 주소	Kwan, Kin Ming
출원인 / 주소	Karl Storz Imaging, Inc.
대리인 / 주소	St. Onge Steward Johnston & Reens LLC
인용정보	피인용 횟수 : 0 인용 특허 : 35

초록 ▼

The invention provides an endoscope having a lens holder, wherein the lens holder comprises a body containing a sintered feedstock and machined surfaces. The invention also provides a method of manufacturing the endoscope which comprises the steps of molding a metal blank by a MIM process, wherein the metal blank is “near net shape” and has a sprue, a post, and optionally an outer shell, machining the inner surfaces and then the outer surfaces of the metal blank to form a lens holder, installing a lens in the lens holder, and assembling the lens holder having the lens into the endoscope.

대표청구항 ▼

1. A method of manufacturing an endoscope having at least one lens holder comprising the steps of: forming at least one green metal blank using metal injection molding of a feedstock having metal powders and polymer binders, said at least one green metal blank comprising a sprue, a post and an outer shell, said at least one green metal blank having inside dimensions and outer dimensions, and said at least one green metal blank substantially similar in size and shape to said at least one lens holder;debinding said at least green metal blank to remove said polymer binders using a low temperature oven to form at least one debinded green metal blank;sintering said at least one debinded green metal blank in a high temperature furnace to form at least one brown metal blank;holding said at least one brown metal blank from said outer shell andmachining said at least one brown metal blank to form said at least one lens holder, wherein said sprue, said post and said outer shell are removed during or at the end of the machining;installing a lens in each of said at least one lens holder; andassembling said at least one lens holder installed with said lens into said endoscope. 2. The method of manufacturing an endoscope having at least one lens holder according to claim 1, wherein the step of machining said at least one brown metal blank to form said at least one lens holder comprises the steps of: machining said inside dimensions of said at least one brown metal blank; andmachining said outside dimensions of said at least one brown metal blank using said inside dimensions of said at least one brown metal blank as a reference to form said at least one lens holder. 3. The method of manufacturing an endoscope having at least one lens holder according to claim 1, further comprising before said step of machining said at least one brown metal blank, the step of trimming said sprue and said post of said at least one brown metal blank. 4. The method of manufacturing an endoscope having at least one lens holder according to claim 3, wherein said step of machining said at least one brown metal blank to form said at least one lens holder comprises the steps of: machining said inside dimensions of said at least one brown metal blank; andmachining said outside dimensions of said at least one brown metal blank using said inside dimensions of said at least one brown metal blank as a reference to form said at least one lens holder. 5. A method of manufacturing an endoscope having at least one lens holder comprising the steps of: forming at least one green metal blank using metal injection molding of a feedstock having metal powders and polymer binders, said at least one green metal blank comprising a sprue, a post and an outer shell, said at least one green metal blank having inside dimensions and outer dimensions, and said at least one green metal blank substantially similar in size and shape to said at least one lens holder;debinding said at least green metal blank to remove said polymer binders using a low temperature oven to form at least one debinded green metal blank;sintering said at least one debinded green metal blank in a high temperature furnace to form at least one brown metal blank;machining said at least one brown metal blank to form said at least one lens holder;applying a tungsten disulfide lubricative coating to said lens holder;installing a lens in each of said at least one lens holder; andassembling said at least one lens holder installed with said lens into said endoscope. 6. The method of manufacturing an endoscope having at least one lens holder according to claim 1, wherein said step of machining said at least one brown metal blank to form said at least one lens holder comprises the steps of: machining said outside dimensions of said at least one brown metal blank; andmachining said inside dimensions said at least one brown metal blank using said outside dimensions of said at least one brown metal blank as a reference to form said at least one lens holder. 7. The method of manufacturing an endoscope having at least one lens holder according to claim 1, wherein said at least one brown metal blank is made of stainless steel. 8. A method of manufacturing an endoscope having at least one lens holder comprising the steps of, forming at least one green metal blank using metal injection molding of a feedstock having metal powders and polymer binders, said at least one green metal blank comprising a sprue, a post and an outer shell, said at least one green metal blank having inside dimensions and outer dimensions, and said at least one green metal blank substantially similar in size and shape to said at least one lens holder;debinding said at least green metal blank to remove said polymer binders using a low temperature oven to form at least one debinded green metal blank;sintering said at least one debinded green metal blank in a high temperature furnace to form at least one brown metal blank;machining said at least one brown metal blank to form said at least one lens holder;installing a lens in each of said at least one lens holder; andassembling said at least one lens holder installed with said lens into said endoscope;wherein said at least one lens holder has a raceway and a set of extrusions extending from the periphery of said raceway in one direction. 9. The method of manufacturing an endoscope having at least one lens holder according to claim 8, wherein said at least one lens holder has a second set of extrusions extending from the periphery of said raceway in a direction opposite to said one direction.

이 특허에 인용된 특허 (35)

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Baum Louis W. ; Wright Maryann, Composition and process for metal injection molding.
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Braillard, Fr?d?ric; Mons, Claude; Perruchaut, Philippe; Ribot, Didier; Vigneau, Jo?l, Dry self-lubricating dense material; a mechanical part formed from said material; a method of manufacturing said material.
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Zifeng, Zhang; Zhenbo, Wang; Feng, Jiang; Kun, Wang; Zhixue, Huang, Endoscope and a method of manufacturing the same.
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Hori Koichiro (Framingham MA) Arsenault Dennis (Ashland MA), Endoscope coupler with magnetic focus control.
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Wright, George; Almarzouck, Kais; Hoyle, Lonnie, Endoscope designs and methods of manufacture.
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Yamamoto, Tetsuya, Endoscopic treating instrument.
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Anhalt, Thomas J., Endoscopic video camera with magnetic drive focusing.
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Anhalt, Thomas J., Endoscopic video camera with magnetic drive focusing.
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Jannard, James H.; Houston, Malcolm Neal; Reyes, Carlos D.; Saylor, Ryan, Eyewear retention system and method.
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Ciomek Michael A. (91 Pecksland Rd. Greenwich CT 06830), Feedstock and process for metal injection molding.
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Kawai Sumio,JPX ; Suzuki Tatsuya,JPX ; Takahashi Shinya,JPX ; Koiwai Tamotsu,JPX ; Yokoyama Kunio,JPX, Lens barrel.
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Lemke Norbert,DEX, Magnetic device for focusing an optical imaging system.
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Chinnock Randal B. (North Reading MA) Dionne Norman J. (Arlington MA), Magnetically coupled lens actuator.
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Wu, Chi Yin; Wang, Hou; Hsn, Chirn Shun, Material melting device of metal injection molding machine.
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Sachs, Emanuel M.; Hadjiloucas, Constantinos; Allen, Samuel; Yoo, Helen J., Metal and ceramic containing parts produced from powder using binders derived from salt.
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David W. Hostetler, Metal injection molding.
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Kazuo Sakamoto JP; Kyoso Ishida JP; Yukio Yamamoto JP, Method and apparatus for semi-molten metal injection molding.
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Sakamoto Kazuo,JPX ; Ishida Kyoso,JPX ; Yamamoto Yukio,JPX, Method and apparatus for semi-molten metal injection molding.
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Sakamoto, Kazuo; Ishida, Kyoso; Yamamoto, Yukio, Method and apparatus for semi-molten metal injection molding.
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Bradley Norbert L. (Sanford MI) Wieland Regan D. (Auburn MI) Schafer William J. (Saginaw MI) Niemi Allen N. (Houghton MI), Method and apparatus for the injection molding of metal alloys.
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Bertholdt Horst-Otto,DEX ; Gassen Rainer,DEX, Method and device for the disposal of a cation exchanger.
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Busk Robert S. (Midland MI), Method for making thixotropic materials.
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Busk Robert S. (Midland MI), Method for making thixotropic materials.
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La Salle Jerry C. ; Sherman Bryan C., Net shape hastelloy X made by metal injection molding using an aqueous binder.
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Bulger Matthew K., Nickel-free stainless steel alloy processible through metal injection molding techniques to produce articles intended f.
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Kjar Anthony R. (Victoria AUX) Iacocca Ronald G. (State College PA) German Randall M. (State College PA) Mihelich John L. (Prospect KY), Particulate feedstock for metal injection molding.
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Gressel, Stephen H; Marley, Matthew M; Wright, Maryann, Preparation of articles using metal injection molding.
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Stephen H Gressel ; Matthew M Marley ; Maryann Wright, Preparation of articles using metal injection molding.
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Lu, Jyh-Woei J.; Bartone, Kenneth J.; Olson, Donald M.; Benson, Dwayne M.; Tervo, John N., Sintering process and tools for use in metal injection molding of large parts.
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Smith, David J.; Shappie, Thomas B.; Sanford, Robert A.; Liesz, Richard J., Tungsten-carbide articles made by metal injection molding and method.
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