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EP1207776A1 - Endoscope - Google Patents

Endoscope

Info

Publication number
EP1207776A1
EP1207776A1 EP00953573A EP00953573A EP1207776A1 EP 1207776 A1 EP1207776 A1 EP 1207776A1 EP 00953573 A EP00953573 A EP 00953573A EP 00953573 A EP00953573 A EP 00953573A EP 1207776 A1 EP1207776 A1 EP 1207776A1
Authority
EP
European Patent Office
Prior art keywords
lens holder
inspection tube
lens
light source
endoscope
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP00953573A
Other languages
German (de)
English (en)
Inventor
Paul Breedveld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technische Universiteit Delft
Original Assignee
Technische Universiteit Delft
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 Technische Universiteit Delft filed Critical Technische Universiteit Delft
Publication of EP1207776A1 publication Critical patent/EP1207776A1/fr
Withdrawn legal-status Critical Current

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
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00149—Holding or positioning arrangements using articulated arms
    • 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
    • A61B1/04—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 combined with photographic or television appliances
    • A61B1/05—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 combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion

Definitions

  • the invention relates to an endoscope for use in minimally invasive surgery, comprising an inspection tube, which is provided with a light source and which at its distal end opens into a lens .
  • Such an endoscope is known, for example, from the article Human sense of vision : a guide to future endo- scopic imaging systems by the authors M.O. Schurr, G. Buess, E. Kunert, E. Fleming, H. Henmeking and L. Gumb, published in Minimally Invasive Therapy and Allied Technologies; 1996; No. 5, p. 410-418.
  • the endoscope disclosed in this article is formed as a straight inspection tube with the lens looking ahead. Around the lens light conductors are provided for the illumination of the object to be inspected. The image obtained by such an endoscope is projected onto a monitor in order to provide the surgeon with visual information during the performance of the minimally invasive surgery.
  • this type of the imaging entails problems with regard to the perception of distances and movements perpendicularly to the focal plane.
  • a first problem is that the surgeon accommodates to the focal plane of the monitor and not to the actual objects. Depth perception is therefore problematic.
  • a further problem is that although the light source mounted around the lens provides a brighter image, it has an adverse effect on the surgeon's depth perception because of the absence of shadows .
  • An endoscope according to the preamble of claim 1 is known from US-A-3 , 572 , 325. In the endoscope known from US-A-3 , 572 , 325 the lens is positioned in the plane of the lens holder connected to the inspection tube, which lens holder is adjustable at an angle in relation to a substan- tial part of the inspection tube.
  • This feature makes it possible for the lens together with the light source to be repositioned without moving the inspection tube of the endoscope, so as to allow the image on the monitor connected to the endoscope to change in a natural manner.
  • the adjustability of the lens holder with respect to the inspec- tion tube thus provides an additional degree of freedom.
  • the measures of freedom provided by said known endoscope are :
  • the endoscope according to the invention is characterized in that the light source is positioned near the distal end at some distance from the lens holder, such that there is sufficient distance from the light source to the lens to form silhouettes which the lens is able to perceive. Using a light source in such a manner assists the endoscope ' s depth perception due to the shadow effect created as a result of the positioning of the light source .
  • the light source in relation to the inspection tube be adjustable at an angle. In this way the shadow effect can always be obtained for the respective direction of viewing.
  • the light source is adjustable simultaneously with the lens holder, to avoid the necessity of separate adjustment devices for operating the light source and the lens holder.
  • the lens holder is continuously adjustable in relation to the inspection tube between a ) ) t H H
  • Said endoscope 1 comprises an inspection tube 2 through which image signals are conveyed.
  • the distal end of the inspection tube 2 opens into a lens 3.
  • the lens 3 is positioned on a lens holder 4 con- nected with the inspection tube 2, which lens holder 4 can be adjusted at an angle in relation to the inspection tube 2.
  • the images received via the lens 3 are processed further in the usual manner.
  • the lens 3 may be part of a camera that converts the image data into elec- tronic signals.
  • These electronic signals are subsequently processed in the usual manner and displayed on a video display unit.
  • the person skilled in the art is quite familiar with this and there is no need for any further explanation.
  • the lens holder 4 is continuously adjustable in relation to the inspection tube 2 between a first position in the extended direction of the inspection tube 2, and a second position in which the lens holder 4 forms an angle t

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Endoscopes (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)

Abstract

L'invention concerne un endoscope (1) prévu pour être utilisé en chirurgie minimalement invasive. Cet endoscope comprend un tube de contrôle (2) pourvu d'une source lumineuse (8). Une lentille (3) est positionnée sur un support (4) de lentille réglable de manière angulaire, au niveau de la partie distale du tube de contrôle (2). Un organe de commande (5) au niveau de l'extrémité proximale du tube de contrôle (2) est couplé au support de lentille (4) en vue de son réglage par rapport au tube de contrôle. La source lumineuse (8) est positionnée à proximité de l'extrémité distale à une distance donnée du support de lentille (4) de telle sorte que des silhouettes pouvant être perçues par la lentille (3) peuvent être formées.
EP00953573A 1999-08-06 2000-07-26 Endoscope Withdrawn EP1207776A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1012790 1999-08-06
NL1012790A NL1012790C2 (nl) 1999-08-06 1999-08-06 Endoscoop.
PCT/NL2000/000533 WO2001010292A1 (fr) 1999-08-06 2000-07-26 Endoscope

Publications (1)

Publication Number Publication Date
EP1207776A1 true EP1207776A1 (fr) 2002-05-29

Family

ID=19769709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00953573A Withdrawn EP1207776A1 (fr) 1999-08-06 2000-07-26 Endoscope

Country Status (5)

Country Link
EP (1) EP1207776A1 (fr)
JP (1) JP2003506127A (fr)
AU (1) AU6599800A (fr)
NL (1) NL1012790C2 (fr)
WO (1) WO2001010292A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7075284B2 (en) 2002-07-08 2006-07-11 Kabushiki Kaisha Toshiba Time limit function utilization
US8182417B2 (en) 2004-11-24 2012-05-22 Intuitive Surgical Operations, Inc. Articulating mechanism components and system for easy assembly and disassembly
US7410483B2 (en) 2003-05-23 2008-08-12 Novare Surgical Systems, Inc. Hand-actuated device for remote manipulation of a grasping tool
US8100824B2 (en) 2003-05-23 2012-01-24 Intuitive Surgical Operations, Inc. Tool with articulation lock
US8562640B2 (en) 2007-04-16 2013-10-22 Intuitive Surgical Operations, Inc. Tool with multi-state ratcheted end effector
US7090637B2 (en) 2003-05-23 2006-08-15 Novare Surgical Systems, Inc. Articulating mechanism for remote manipulation of a surgical or diagnostic tool
US7828808B2 (en) 2004-06-07 2010-11-09 Novare Surgical Systems, Inc. Link systems and articulation mechanisms for remote manipulation of surgical or diagnostic tools
US7678117B2 (en) 2004-06-07 2010-03-16 Novare Surgical Systems, Inc. Articulating mechanism with flex-hinged links
US9700334B2 (en) 2004-11-23 2017-07-11 Intuitive Surgical Operations, Inc. Articulating mechanisms and link systems with torque transmission in remote manipulation of instruments and tools
US7785252B2 (en) 2004-11-23 2010-08-31 Novare Surgical Systems, Inc. Articulating sheath for flexible instruments
US8116886B2 (en) 2005-10-14 2012-02-14 The Trustees Of Columbia University In The City Of New York Electrode arrays and systems for inserting same
US7862554B2 (en) 2007-04-16 2011-01-04 Intuitive Surgical Operations, Inc. Articulating tool with improved tension member system
US9561045B2 (en) 2006-06-13 2017-02-07 Intuitive Surgical Operations, Inc. Tool with rotation lock
US8409244B2 (en) 2007-04-16 2013-04-02 Intuitive Surgical Operations, Inc. Tool with end effector force limiter
US8465475B2 (en) 2008-08-18 2013-06-18 Intuitive Surgical Operations, Inc. Instrument with multiple articulation locks
US20110022078A1 (en) 2009-07-23 2011-01-27 Cameron Dale Hinman Articulating mechanism
US9161771B2 (en) 2011-05-13 2015-10-20 Intuitive Surgical Operations Inc. Medical instrument with snake wrist structure
US9687303B2 (en) 2012-04-20 2017-06-27 Vanderbilt University Dexterous wrists for surgical intervention
CN110248583B (zh) 2016-12-02 2021-12-31 范德比尔特大学 带有连续体操作器的可操纵内窥镜
US10967504B2 (en) 2017-09-13 2021-04-06 Vanderbilt University Continuum robots with multi-scale motion through equilibrium modulation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3572325A (en) 1968-10-25 1971-03-23 Us Health Education & Welfare Flexible endoscope having fluid conduits and control
US4905082A (en) * 1987-05-06 1990-02-27 Olympus Optical Co., Ltd. Rigid video endoscope having a detachable imaging unit
US5184602A (en) * 1988-11-18 1993-02-09 Effner Biomet Gmbh Endoscope, in particular an arthroscope
US5976075A (en) * 1997-12-15 1999-11-02 University Of Massachusetts Endoscope deployment apparatus
DE69922791T2 (de) * 1998-02-19 2005-12-08 California Institute Of Technology, Pasadena Gerät zur bereitstellung eines spherischen sehfeldes während endoskopischen eingriffen
DE19839188C2 (de) * 1998-08-28 2003-08-21 Storz Endoskop Gmbh Schaffhaus Endoskop

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0110292A1 *

Also Published As

Publication number Publication date
NL1012790C2 (nl) 2001-02-07
WO2001010292A1 (fr) 2001-02-15
JP2003506127A (ja) 2003-02-18
AU6599800A (en) 2001-03-05

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