WO2004026125A1 - Endoscope - Google Patents

Endoscope Download PDF

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Publication number
WO2004026125A1
WO2004026125A1 PCT/GB2003/004149 GB0304149W WO2004026125A1 WO 2004026125 A1 WO2004026125 A1 WO 2004026125A1 GB 0304149 W GB0304149 W GB 0304149W WO 2004026125 A1 WO2004026125 A1 WO 2004026125A1
Authority
WO
WIPO (PCT)
Prior art keywords
endoscope
viewing
image
proximal end
endoscope according
Prior art date
Application number
PCT/GB2003/004149
Other languages
French (fr)
Inventor
Martin Tonbridge Norton Knight
Original Assignee
Endospine Kinetics Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Endospine Kinetics Limited filed Critical Endospine Kinetics Limited
Priority to AU2003267638A priority Critical patent/AU2003267638A1/en
Publication of WO2004026125A1 publication Critical patent/WO2004026125A1/en

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
    • A61B1/00163—Optical arrangements
    • A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
    • A61B1/00167—Details of optical fibre bundles, e.g. shape or fibre distribution
    • 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
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00096—Optical elements
    • 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
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00101—Insertion part of the endoscope body characterised by distal tip features the distal tip features being detachable
    • 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
    • A61B1/012—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 characterised by internal passages or accessories therefor
    • 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
    • A61B1/12—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 cooling or rinsing 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
    • A61B1/313—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 for introducing through surgical openings, e.g. laparoscopes
    • A61B1/3135—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 for introducing through surgical openings, e.g. laparoscopes for examination of the epidural or the spinal space
    • 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
    • A61B1/00163—Optical arrangements
    • A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics

Definitions

  • the present invention relates to an endoscope, and in particular to an endoscope suitable for viewing an object in an individual's body.
  • Endoscopes are commonly used in a range of applications allowing minimally invasive visualisation of and access to objects in locations that are otherwise difficult to access.
  • endoscopes are widely used in the medical field, where diagnostic and surgical endoscopic techniques have become an integral part of modern medical practice.
  • an endoscope allows viewing at a proximal end thereof an object located at or adjacent to a distal end thereof.
  • Two types of endoscope are known: rigid and flexible endoscopes. These types of instruments typically differ with regard to the means by which an image of the object at or adjacent to the distal end of the endoscope is relayed to the proximal end thereof for viewing.
  • a rigid endoscope relies upon a system of lenses to relay the image, whereas a flexible endoscope employs optical fibres for this purpose.
  • rigid endoscopes are typically relatively short instruments (flexible endoscopes may be longer) and as a consequence, the means for viewing an image at the proximal end of the endoscope, usually an eyepiece or camera system, must be located relatively close to the object to be viewed. In a surgical setting, this can be a significant drawback of rigid endoscopes, since the viewing means, which may be heavy and bulky, is situated close to the operative site, hampering the surgeon carrying out the procedure, and increasing the risk of infection or contamination of the operative site.
  • the present invention has been made from a consideration of these problems.
  • an endoscope for viewing at a proximal end thereof an object at a distal end thereof located in an individual's body, wherein the endoscope comprises an elongate housing having a rigid distal portion in which is housed an objective lens means operative to form an image of the object, and a coherent fibre bundle operative to relay said image to the proximal end of the endoscope for viewing.
  • the viewing means may be located remotely from an operative site, thereby alleviating the need to deal with heavy and bulky equipment during a surgical procedure and reducing the potential for infection or contamination at the operative site.
  • the arrangement of the present invention also considerably reduces the risk of breakages compared to present rigid endoscopes.
  • an endoscope typically comprises an illumination means for illuminating the object to be viewed, an objective lens means for forming an image of the object at the distal end of the endoscope, an image transmission means for relaying the image to the proximal end of the endoscope and a viewing means for viewing the image of the object at the proximal end of the endoscope.
  • the endoscope of the present invention has an image transmission means comprising a coherent fibre bundle relay, advantageously allowing for a relatively long endoscope.
  • the relay may be housed within an elongate housing that is configured for ease of access to the relay, to facilitate replacement or repair of the relay in the event that damage thereof occurs. Images may be viewed at the proximal end of the endoscope using any suitable means. For example, an eyepiece, camera or CCD coupler may be provided as a viewing means.
  • an endoscope is usually provided with an instrument channel through which surgical or other instruments may be passed.
  • the endoscope of the present invention may further comprise an instrument channel for insertion of an instrument, such as a laser probe.
  • the endoscope is provided with an irrigation system, most preferably a continuous flow irrigation system. Fluid may flow through an instrument channel. Preferably, fluid flows into the endoscope via the instrument channel and out via a tube provided therefor, although the reverse arrangement may be used. Thus, irrigation of a cavity into which the endoscope is inserted may be achieved.
  • the endoscope is a spinal endoscope.
  • the rigid distal portion of the elongate housing has a generally elliptical cross-section.
  • the present invention allows for a wide range of endoscopic working lengths and diameters.
  • Fig. 1 is a diagrammatic, partially cut-away plan view of an endoscope according to the present invention
  • Fig. 2 is a diagrammatic, partially cut-away plan view of the endoscope of
  • an endoscope 10 comprises an elongate tubular housing 11, the proximal end 12 of which is attached to a hub member 13.
  • the elongate housing 11 has a rigid distal portion 14 terminating at the distal end 16 of the endoscope 10.
  • An objective lens set is housed within the rigid distal portion.
  • An outer sheath 15 covers the elongate housing 11.
  • a coherent fibre bundle is contained within a tube 17 spanning the length of the elongate housing 11 and itself contained within said elongate housing 11.
  • the coherent fibre bundle terminates at an optical connector 18 of the hub member 13.
  • An illumination fibre is also contained within the elongate housing 11, spanning the length of the endoscope 10 and terminating at an illumination connector 19 of the hub member 13.
  • the hub member 13 is provided with an inlet 21 having a stop-cock 22.
  • the inlet 21 is connected to an irrigation tube 23 running the length of the elongate housing 11.
  • the hub member is further provided with an outlet 24 with a stop-cock 26.
  • the outlet 24 is continuous with an instrument channel 27 which opens at the distal end 16 of the elongate housing 11.
  • a laser probe may be inserted into the instrument channel 27 via an entry port 28.
  • a light source is connected to the illumination connector 19, light therefrom then being relayed via the illumination fibre to the distal end 16 of the elongate housing 11 where it illuminates an object to be viewed.
  • This object may be located within, for example, an individual's body, in which case at least the distal end 16 of the elongate housing 11 will be inserted into said body.
  • An image of the object is focussed by the objective lens means within the distal portion 14 of the elongate housing 11.
  • the image is relayed by the coherent fibre bundle to the proximal end thereof where it is detected by a viewing means, for example an eyepiece or camera, remote from the object and connected to the optical connector 18. In this way, the object may conveniently be viewed.
  • Continuous flow irrigation may be provided by attaching a supply of irrigation fluid to the inlet 21 and setting the stop-cock 22 to allow flow therethrough. Fluid flows through the irrigation tube 23 and out of said tube 23 at the distal end thereof. Fluid is sucked back through the instrument channel 27 by a suction device or similar attached to the outlet 24, the stop-cock 26 being set to allow flow therethrough.
  • a laser probe or other device or instrument may conveniently be fed through the instrument channel.
  • one preferred embodiment of the present invention provides an endoscope having a formed distal portion of approximately 75mm in length, an elongate housing having a diameter of approximately 7mm and a hub member having an outer diameter of approximately 29mm.

Abstract

The present invention relates to an endoscope suitable for viewing at a proximal end thereof an object at a distal end thereof located in an individual's body. The endoscope comprises an elongate housing having a rigid distal portion housing an objective lens means operative to form an image of the object, and a coherent fibre bundle operative to relay said image to the proximal end of the endoscope for viewing. The endoscope may be a spinal endoscope of generally elliptical cross-section.

Description

ENDOSCOPE The present invention relates to an endoscope, and in particular to an endoscope suitable for viewing an object in an individual's body.
Endoscopes are commonly used in a range of applications allowing minimally invasive visualisation of and access to objects in locations that are otherwise difficult to access. In particular, endoscopes are widely used in the medical field, where diagnostic and surgical endoscopic techniques have become an integral part of modern medical practice.
The use of an endoscope allows viewing at a proximal end thereof an object located at or adjacent to a distal end thereof. Two types of endoscope are known: rigid and flexible endoscopes. These types of instruments typically differ with regard to the means by which an image of the object at or adjacent to the distal end of the endoscope is relayed to the proximal end thereof for viewing. A rigid endoscope relies upon a system of lenses to relay the image, whereas a flexible endoscope employs optical fibres for this purpose.
In some medical and surgical applications, it is necessary to use a rigid endoscope due to the nature of the procedure to be performed. However, rigid endoscopes are typically relatively short instruments (flexible endoscopes may be longer) and as a consequence, the means for viewing an image at the proximal end of the endoscope, usually an eyepiece or camera system, must be located relatively close to the object to be viewed. In a surgical setting, this can be a significant drawback of rigid endoscopes, since the viewing means, which may be heavy and bulky, is situated close to the operative site, hampering the surgeon carrying out the procedure, and increasing the risk of infection or contamination of the operative site. The present invention has been made from a consideration of these problems.
According to the present invention therefore there is provided an endoscope for viewing at a proximal end thereof an object at a distal end thereof located in an individual's body, wherein the endoscope comprises an elongate housing having a rigid distal portion in which is housed an objective lens means operative to form an image of the object, and a coherent fibre bundle operative to relay said image to the proximal end of the endoscope for viewing.
It will be appreciated that using an endoscope of the present invention, the viewing means may be located remotely from an operative site, thereby alleviating the need to deal with heavy and bulky equipment during a surgical procedure and reducing the potential for infection or contamination at the operative site.
The arrangement of the present invention also considerably reduces the risk of breakages compared to present rigid endoscopes.
It will be understood by a person skilled in the art that an endoscope typically comprises an illumination means for illuminating the object to be viewed, an objective lens means for forming an image of the object at the distal end of the endoscope, an image transmission means for relaying the image to the proximal end of the endoscope and a viewing means for viewing the image of the object at the proximal end of the endoscope. The endoscope of the present invention has an image transmission means comprising a coherent fibre bundle relay, advantageously allowing for a relatively long endoscope. The relay may be housed within an elongate housing that is configured for ease of access to the relay, to facilitate replacement or repair of the relay in the event that damage thereof occurs. Images may be viewed at the proximal end of the endoscope using any suitable means. For example, an eyepiece, camera or CCD coupler may be provided as a viewing means.
An endoscope is usually provided with an instrument channel through which surgical or other instruments may be passed. Thus, the endoscope of the present invention may further comprise an instrument channel for insertion of an instrument, such as a laser probe.
In a preferred embodiment of the present invention, the endoscope is provided with an irrigation system, most preferably a continuous flow irrigation system. Fluid may flow through an instrument channel. Preferably, fluid flows into the endoscope via the instrument channel and out via a tube provided therefor, although the reverse arrangement may be used. Thus, irrigation of a cavity into which the endoscope is inserted may be achieved.
In a further preferred embodiment of the present invention, the endoscope is a spinal endoscope. Preferably, the rigid distal portion of the elongate housing has a generally elliptical cross-section.
The present invention allows for a wide range of endoscopic working lengths and diameters.
In order that the present invention may be more readily understood, a specific embodiment of the present invention will now be described by way of example only with reference to the accompanying drawings in which:
Fig. 1 is a diagrammatic, partially cut-away plan view of an endoscope according to the present invention; Fig. 2 is a diagrammatic, partially cut-away plan view of the endoscope of
Fig. 1 shown with the outer sheath removed; Fig. 3 is a diagrammatic, partially cut-away side view of the endoscope as shown in Fig. 2; and Fig. 4 is a diagrammatic end view of the distal end of the endoscope of Figs. 1 to 3. Referring to Figs. 1 to 4, an endoscope 10 comprises an elongate tubular housing 11, the proximal end 12 of which is attached to a hub member 13. The elongate housing 11 has a rigid distal portion 14 terminating at the distal end 16 of the endoscope 10. An objective lens set is housed within the rigid distal portion. An outer sheath 15 covers the elongate housing 11.
A coherent fibre bundle is contained within a tube 17 spanning the length of the elongate housing 11 and itself contained within said elongate housing 11. The coherent fibre bundle terminates at an optical connector 18 of the hub member 13. An illumination fibre is also contained within the elongate housing 11, spanning the length of the endoscope 10 and terminating at an illumination connector 19 of the hub member 13.
The hub member 13 is provided with an inlet 21 having a stop-cock 22. The inlet 21 is connected to an irrigation tube 23 running the length of the elongate housing 11. The hub member is further provided with an outlet 24 with a stop-cock 26. The outlet 24 is continuous with an instrument channel 27 which opens at the distal end 16 of the elongate housing 11. A laser probe may be inserted into the instrument channel 27 via an entry port 28. In use, a light source is connected to the illumination connector 19, light therefrom then being relayed via the illumination fibre to the distal end 16 of the elongate housing 11 where it illuminates an object to be viewed. This object may be located within, for example, an individual's body, in which case at least the distal end 16 of the elongate housing 11 will be inserted into said body. An image of the object is focussed by the objective lens means within the distal portion 14 of the elongate housing 11. The image is relayed by the coherent fibre bundle to the proximal end thereof where it is detected by a viewing means, for example an eyepiece or camera, remote from the object and connected to the optical connector 18. In this way, the object may conveniently be viewed.
Continuous flow irrigation may be provided by attaching a supply of irrigation fluid to the inlet 21 and setting the stop-cock 22 to allow flow therethrough. Fluid flows through the irrigation tube 23 and out of said tube 23 at the distal end thereof. Fluid is sucked back through the instrument channel 27 by a suction device or similar attached to the outlet 24, the stop-cock 26 being set to allow flow therethrough.
A laser probe or other device or instrument may conveniently be fed through the instrument channel.
Whilst it will be appreciated that endoscopes of greatly varying dimensions may be provided, one preferred embodiment of the present invention provides an endoscope having a formed distal portion of approximately 75mm in length, an elongate housing having a diameter of approximately 7mm and a hub member having an outer diameter of approximately 29mm.
It is to be understood that the above embodiment is described by way of example only. Many modifications and variations are possible.

Claims

1. An endoscope for viewing at a proximal end thereof an object at a distal end thereof located in an individual's body, wherein the endoscope comprises an elongate housing having a rigid distal portion in which is housed an objective lens means operative to form an image of the object, and a coherent fibre bundle operative to relay said image to the proximal end of the endoscope for viewing.
2. An endoscope according to claim 1, wherein the endoscope is provided with a continuous flow irrigation system.
3. An endoscope according to claim 2, wherein fluid flows through an instrument channel as part of the continuous flow irrigation system.
4. An endoscope according to claim 3, wherein fluid flows into the endoscope via the instrument channel and out via a tube provided therefor.
5. An endoscope according to any of claims 1 to 4, wherein the endoscope is provided with a viewing means selected from an eyepiece, camera or CCD coupler.
6. An endoscope according to any of claims 1 to 5, wherein the endoscope is provided with an illumination fibre.
7. An endoscope according to any of claims 1 to 6, wherein the elongate housing is configured for ease of access to the coherent fibre bundle.
8. An endoscope according to any of claims 1 to 7, wherein the endoscope is a spinal endoscope.
9. An endoscope according to claim 8, wherein the rigid distal portion is of generally elliptical cross-section.
PCT/GB2003/004149 2002-09-19 2003-09-19 Endoscope WO2004026125A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003267638A AU2003267638A1 (en) 2002-09-19 2003-09-19 Endoscope

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0221724.8 2002-09-19
GB0221724A GB0221724D0 (en) 2002-09-19 2002-09-19 Endoscope

Publications (1)

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WO2004026125A1 true WO2004026125A1 (en) 2004-04-01

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GB (1) GB0221724D0 (en)
WO (1) WO2004026125A1 (en)

Cited By (32)

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Publication number Priority date Publication date Assignee Title
US8351041B2 (en) 2004-11-26 2013-01-08 L'oreal Method of observing biological tissue, in particular human skin
WO2013144944A1 (en) * 2012-03-27 2013-10-03 Medigus Ltd. Integrated endoscope irrigation
US8926502B2 (en) 2011-03-07 2015-01-06 Endochoice, Inc. Multi camera endoscope having a side service channel
US9101287B2 (en) 2011-03-07 2015-08-11 Endochoice Innovation Center Ltd. Multi camera endoscope assembly having multiple working channels
US9101266B2 (en) 2011-02-07 2015-08-11 Endochoice Innovation Center Ltd. Multi-element cover for a multi-camera endoscope
US9101268B2 (en) 2009-06-18 2015-08-11 Endochoice Innovation Center Ltd. Multi-camera endoscope
US9314147B2 (en) 2011-12-13 2016-04-19 Endochoice Innovation Center Ltd. Rotatable connector for an endoscope
US9320419B2 (en) 2010-12-09 2016-04-26 Endochoice Innovation Center Ltd. Fluid channeling component of a multi-camera endoscope
US9402533B2 (en) 2011-03-07 2016-08-02 Endochoice Innovation Center Ltd. Endoscope circuit board assembly
US9492063B2 (en) 2009-06-18 2016-11-15 Endochoice Innovation Center Ltd. Multi-viewing element endoscope
US9554692B2 (en) 2009-06-18 2017-01-31 EndoChoice Innovation Ctr. Ltd. Multi-camera endoscope
US9560954B2 (en) 2012-07-24 2017-02-07 Endochoice, Inc. Connector for use with endoscope
US9560953B2 (en) 2010-09-20 2017-02-07 Endochoice, Inc. Operational interface in a multi-viewing element endoscope
US9642513B2 (en) 2009-06-18 2017-05-09 Endochoice Inc. Compact multi-viewing element endoscope system
US9655502B2 (en) 2011-12-13 2017-05-23 EndoChoice Innovation Center, Ltd. Removable tip endoscope
US9706903B2 (en) 2009-06-18 2017-07-18 Endochoice, Inc. Multiple viewing elements endoscope system with modular imaging units
US9713417B2 (en) 2009-06-18 2017-07-25 Endochoice, Inc. Image capture assembly for use in a multi-viewing elements endoscope
US9814374B2 (en) 2010-12-09 2017-11-14 Endochoice Innovation Center Ltd. Flexible electronic circuit board for a multi-camera endoscope
US9872609B2 (en) 2009-06-18 2018-01-23 Endochoice Innovation Center Ltd. Multi-camera endoscope
US9901244B2 (en) 2009-06-18 2018-02-27 Endochoice, Inc. Circuit board assembly of a multiple viewing elements endoscope
US9986899B2 (en) 2013-03-28 2018-06-05 Endochoice, Inc. Manifold for a multiple viewing elements endoscope
US9993142B2 (en) 2013-03-28 2018-06-12 Endochoice, Inc. Fluid distribution device for a multiple viewing elements endoscope
US10080486B2 (en) 2010-09-20 2018-09-25 Endochoice Innovation Center Ltd. Multi-camera endoscope having fluid channels
US10165929B2 (en) 2009-06-18 2019-01-01 Endochoice, Inc. Compact multi-viewing element endoscope system
US10203493B2 (en) 2010-10-28 2019-02-12 Endochoice Innovation Center Ltd. Optical systems for multi-sensor endoscopes
US10238295B2 (en) 2011-06-06 2019-03-26 Percuvision, Llc Sensing catheter emitting radiant energy
US10492662B2 (en) 2012-03-27 2019-12-03 Medigus Ltd. Integrated endoscope irrigation
US10499794B2 (en) 2013-05-09 2019-12-10 Endochoice, Inc. Operational interface in a multi-viewing element endoscope
US11278190B2 (en) 2009-06-18 2022-03-22 Endochoice, Inc. Multi-viewing element endoscope
US11547275B2 (en) 2009-06-18 2023-01-10 Endochoice, Inc. Compact multi-viewing element endoscope system
US11864734B2 (en) 2009-06-18 2024-01-09 Endochoice, Inc. Multi-camera endoscope
US11889986B2 (en) 2010-12-09 2024-02-06 Endochoice, Inc. Flexible electronic circuit board for a multi-camera endoscope

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Cited By (63)

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Publication number Priority date Publication date Assignee Title
US8351041B2 (en) 2004-11-26 2013-01-08 L'oreal Method of observing biological tissue, in particular human skin
US10791910B2 (en) 2009-06-18 2020-10-06 Endochoice, Inc. Multiple viewing elements endoscope system with modular imaging units
US11534056B2 (en) 2009-06-18 2022-12-27 Endochoice, Inc. Multi-camera endoscope
US9554692B2 (en) 2009-06-18 2017-01-31 EndoChoice Innovation Ctr. Ltd. Multi-camera endoscope
US11471028B2 (en) 2009-06-18 2022-10-18 Endochoice, Inc. Circuit board assembly of a multiple viewing elements endoscope
US11278190B2 (en) 2009-06-18 2022-03-22 Endochoice, Inc. Multi-viewing element endoscope
US9101268B2 (en) 2009-06-18 2015-08-11 Endochoice Innovation Center Ltd. Multi-camera endoscope
US10912445B2 (en) 2009-06-18 2021-02-09 Endochoice, Inc. Compact multi-viewing element endoscope system
US10905320B2 (en) 2009-06-18 2021-02-02 Endochoice, Inc. Multi-camera endoscope
US10791909B2 (en) 2009-06-18 2020-10-06 Endochoice, Inc. Image capture assembly for use in a multi-viewing elements endoscope
US9872609B2 (en) 2009-06-18 2018-01-23 Endochoice Innovation Center Ltd. Multi-camera endoscope
US9901244B2 (en) 2009-06-18 2018-02-27 Endochoice, Inc. Circuit board assembly of a multiple viewing elements endoscope
US11547275B2 (en) 2009-06-18 2023-01-10 Endochoice, Inc. Compact multi-viewing element endoscope system
US10799095B2 (en) 2009-06-18 2020-10-13 Endochoice, Inc. Multi-viewing element endoscope
US10638922B2 (en) 2009-06-18 2020-05-05 Endochoice, Inc. Multi-camera endoscope
US9642513B2 (en) 2009-06-18 2017-05-09 Endochoice Inc. Compact multi-viewing element endoscope system
US10165929B2 (en) 2009-06-18 2019-01-01 Endochoice, Inc. Compact multi-viewing element endoscope system
US9706905B2 (en) 2009-06-18 2017-07-18 Endochoice Innovation Center Ltd. Multi-camera endoscope
US9706903B2 (en) 2009-06-18 2017-07-18 Endochoice, Inc. Multiple viewing elements endoscope system with modular imaging units
US9713417B2 (en) 2009-06-18 2017-07-25 Endochoice, Inc. Image capture assembly for use in a multi-viewing elements endoscope
US10092167B2 (en) 2009-06-18 2018-10-09 Endochoice, Inc. Multiple viewing elements endoscope system with modular imaging units
US11864734B2 (en) 2009-06-18 2024-01-09 Endochoice, Inc. Multi-camera endoscope
US9492063B2 (en) 2009-06-18 2016-11-15 Endochoice Innovation Center Ltd. Multi-viewing element endoscope
US10080486B2 (en) 2010-09-20 2018-09-25 Endochoice Innovation Center Ltd. Multi-camera endoscope having fluid channels
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