WO2016118423A1 - Sonde d'imagerie jetable compacte à faible coût - Google Patents
Sonde d'imagerie jetable compacte à faible coût Download PDFInfo
- Publication number
- WO2016118423A1 WO2016118423A1 PCT/US2016/013657 US2016013657W WO2016118423A1 WO 2016118423 A1 WO2016118423 A1 WO 2016118423A1 US 2016013657 W US2016013657 W US 2016013657W WO 2016118423 A1 WO2016118423 A1 WO 2016118423A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lens
- adhesive
- objective lens
- disposed
- elements
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/07—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements using light-conductive means, e.g. optical fibres
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/00078—Insertion part of the endoscope body with stiffening means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00103—Constructional details of the endoscope body designed for single use
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/0011—Manufacturing of endoscope parts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/002—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor having rod-lens arrangements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0607—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements for annular illumination
Definitions
- the present invention relates generally to disposable endoscopes and small imaging probes, and more particularly, but not exclusively, to disposable endoscopes and imaging probes that are low-cost and have a relatively smaller diameter than existing endoscopes or probes.
- certain exemplary structures may be presented herein as an endoscope, it is to be understood that instant disclosure extends to any form of optical imaging probe.
- the present invention relates to improvements in disposable endoscopes made possible by a recognition by the instant inventor that the presence of air gaps between optical elements in current endoscope objectives contributes to an overall enlarged diameter.
- spacers are needed to maintain the correct air gaps, and such spacers increase the diameter of the objective, as well as the cost and complexity.
- a lens housing is required to hold the lens elements of the objective in the proper positions, also increasing the diameter and cost of existing objectives.
- the present invention provides an objective lens that contains no air gaps between lens elements, but rather the spaces between the lens elements are filled with an optically clear adhesive material.
- an optical adhesive may not only eliminate the need for a spacer, but can also eliminate the need for a lens housing.
- the optical adhesive of the objectives of the present invention may be sufficiently thick and shaped to have optical power.
- the present invention provides one or more optical adhesive lenses between conventional lens elements, which adhesive lenses not only adhere adjacent conventional lens elements to one another and maintain proper spacing therebetween, but also provide optical power to the objective .
- the term "conventional lens element” is defined to mean a lens made from an optical material that does not have adhesive properties, e.g., glass or optical plastic; a cemented doublet is considered a conventional lens element, wherein the optical cement is sufficiently thin to effectively eliminate any optical power that could be attributed to the cement.
- the term "adhesive lens” is defined to mean a lens element made from an optical material that has adhesive properties, e.g., an optical adhesive or cement, such as polydimethylsiloxane (PDMS), and is shaped and sufficiently thick to exhibit optical power.
- the conventional lens elements may be connected to one another by an adhesive lens, so the entire optical train forms one continuous mechanical structure.
- the use of conventional spacers and/or an additional housing to retain and support such an objective is not required, leading to a further reduction in overall diameter.
- the objective may be adhered to an image sensor directly.
- the present invention may provide endoscopes or, more generally, imaging probes that include an integrated illumination system, eliminating the current need for an external illumination system. Still further, in another of its aspects the present invention may provide a further approach for reducing the diameter of an objective lens through the use of rods that are provided to hold lens elements.
- Figure 1 schematically illustrates an exemplary configuration of an objective lens in accordance with the present invention having both conventional and adhesive lens elements
- Figure 2 schematically illustrates an exemplary configuration of an objective lens in accordance with the present invention having an illumination system
- Figure 3 schematically illustrates the relatively reduced diameter of an objective lens of the present invention compared to a traditional objective with and without a housing;
- Figures 4 A and 4B schematically illustrate end and side elevational views, respectively, of an exemplary configuration for reducing the diameter of an objective lens in accordance with the present invention comprising the use of rods to hold the lens elements;
- FIGS 5 A and 5B schematically illustrate an objective lens in accordance with the present invention having an illumination system comprising optical fibers or an optical lightguide, respectively.
- Figure 1 schematically illustrates an objective lens 100 in accordance with the present invention which includes both conventional lens elements 110 and adhesive lens elements 120.
- the conventional lens elements 110 may include a traditional optical material such as a glass or a plastic.
- the conventional lens elements 110 are labeled as comprising an optical grade polyester, namely OKP4HT (Osaka Gas Chemicals Co., Ltd., Osaka, Japan).
- the adhesive lens elements 120 may include an optical adhesive or cement, such as polydimethylsiloxane (PDMS).
- PDMS polydimethylsiloxane
- the adhesive lens elements 120 may be used for the adhesive lens elements 120, such as, NuSil LightspanTM LS-3140 or LS-3354 Silicone Optical Gel (Nusil Technology, LLC, Carpintera, CA), Norland Optical Adhesive NO A 1315 and NO A 164 (Norland Products, Cranbury, NJ), and/or Masterbond ® MasterSil MS151 (Hackensack, NJ), for example.
- the adhesive lens elements 120 may comprise different adhesives, so that some adhesive lens elements 120 comprise a first adhesive and other adhesive lens elements 120 comprise a second, different adhesive. As illustrated in Fig. 1, all conventional lens elements 110 may have an adhesive lens element 120 disposed therebetween.
- each conventional lens element 110 may be adhesively attached to its adjacent conventional lens element 110 via an adhesive lens element 120.
- the objective 100 may be adhesively attached to a sensor 140 comprising a sensor window 142 via an adhesive lens element 120.
- all optical elements 110, 120, both conventional and adhesive, as well as the sensor 140 may be adhesively attached to one another.
- no additional structure is required to hold the conventional 110 and adhesive lens elements 120 and/or sensor 140 in place.
- a housing is not required for exemplary designs of the present invention.
- the use of adhesive lenses 120 obviates the need for conventional spacers to maintain proper spacing between the conventional lens elements 110.
- An illustration of the potential reduction in objective lens diameter is illustrated in Fig.
- the diameter of an objective lens 100 of the present invention may be 50% smaller than the diameter D3 of a traditional objective lens with housing in place.
- the sensor 140 may include any suitable sensor such as a CMOS sensor comprising 400 x 400 pixels and overall size of 0.97 x 0.97 mm, such as OV6946 (Omnivision Technologies Inc, CA).
- the reduced diameter Dl of the objective lens 100 of the present invention is well-suited for the inclusion of optical fibers 152, such as a ring 150 of multimode optical fibers 152 disposed around the periphery of the objective lens 100, Figs. 2, 5 A.
- optical fibers 152 such as a ring 150 of multimode optical fibers 152 disposed around the periphery of the objective lens 100, Figs. 2, 5 A.
- the diameter of the objective lens 100 will increase by only 0.13 mm.
- a lightguide 160 may be provided, Fig. 5B.
- the lightguide 160 may be a cylindrical hollow tube with a small wall thickness. The light entering the lightguide 160 wall will propagate to the other end of the lightguide 160.
- This lightguide 160 may also function as a lens housing as well, in addition to its main function as a lightguide 160.
- the present invention may provide a configuration in which conventional lens elements 110 are retained in proper spacing relative to one another which may not include the use of adhesive lens elements 120.
- one or more rods 210 such as steel rods, may be disposed about the periphery of the lens elements 200, Figs. 4A, 4B.
- the rods 210 may extend along the length of the objective lens elements 200, Fig. 4B.
- notches 212 may be provided in the periphery of the lens elements 200 in which the rods 210 may be seated, Fig. 4A.
- the rods 210 are disposed interior to the diameter of the lens elements 200.
- the distances between lens elements may be maintained by contacting optical elements, so that traditional spacers and a lens housing may be eliminated.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Endoscopes (AREA)
Abstract
L'invention concerne des sondes d'imagerie jetables dotées de lentilles adhésives et/ou d'autres caractéristiques de fixation permettant d'obtenir une conception compacte sans boîtier.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201562106483P | 2015-01-22 | 2015-01-22 | |
US62/106,483 | 2015-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016118423A1 true WO2016118423A1 (fr) | 2016-07-28 |
Family
ID=56417613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2016/013657 WO2016118423A1 (fr) | 2015-01-22 | 2016-01-15 | Sonde d'imagerie jetable compacte à faible coût |
Country Status (1)
Country | Link |
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WO (1) | WO2016118423A1 (fr) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6236513B1 (en) * | 1999-06-30 | 2001-05-22 | Quantum Corporation | Integrated objective/solid immersion lens for near field recording |
US20010023314A1 (en) * | 2000-03-15 | 2001-09-20 | Zoltan Bodor | Modularly structured endoscope |
US20020091325A1 (en) * | 1998-08-19 | 2002-07-11 | Scimed Life Systems, Inc. | Optical scanning and imaging system and method |
US20100165485A1 (en) * | 2007-05-09 | 2010-07-01 | Mr. Satoshi Do | Imaging lens |
US20130237762A1 (en) * | 2006-07-28 | 2013-09-12 | Novadaq Technologies Inc. | System and method for deposition and removal of an optical element on an endoscope objective |
WO2014048972A1 (fr) * | 2012-09-26 | 2014-04-03 | Sofradim Production | Membrane hydrophobe pour lentille et procédé de protection de lentille au moyen de ladite membrane |
WO2014147060A1 (fr) * | 2013-03-18 | 2014-09-25 | Polight As | Elément de dispositif optique transparent |
-
2016
- 2016-01-15 WO PCT/US2016/013657 patent/WO2016118423A1/fr active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020091325A1 (en) * | 1998-08-19 | 2002-07-11 | Scimed Life Systems, Inc. | Optical scanning and imaging system and method |
US6236513B1 (en) * | 1999-06-30 | 2001-05-22 | Quantum Corporation | Integrated objective/solid immersion lens for near field recording |
US20010023314A1 (en) * | 2000-03-15 | 2001-09-20 | Zoltan Bodor | Modularly structured endoscope |
US20130237762A1 (en) * | 2006-07-28 | 2013-09-12 | Novadaq Technologies Inc. | System and method for deposition and removal of an optical element on an endoscope objective |
US20100165485A1 (en) * | 2007-05-09 | 2010-07-01 | Mr. Satoshi Do | Imaging lens |
WO2014048972A1 (fr) * | 2012-09-26 | 2014-04-03 | Sofradim Production | Membrane hydrophobe pour lentille et procédé de protection de lentille au moyen de ladite membrane |
WO2014147060A1 (fr) * | 2013-03-18 | 2014-09-25 | Polight As | Elément de dispositif optique transparent |
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