WO2001074235A1 - Steerable endoscope and improved method of insertion - Google Patents

Steerable endoscope and improved method of insertion Download PDF

Info

Publication number
WO2001074235A1
WO2001074235A1 PCT/US2001/010907 US0110907W WO0174235A1 WO 2001074235 A1 WO2001074235 A1 WO 2001074235A1 US 0110907 W US0110907 W US 0110907W WO 0174235 A1 WO0174235 A1 WO 0174235A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
assume
instrument
selected curve
elongated instrument
Prior art date
Application number
PCT/US2001/010907
Other languages
French (fr)
Inventor
Amir Belson
Original Assignee
Neoguide Systems, Inc.
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 Neoguide Systems, Inc. filed Critical Neoguide Systems, Inc.
Priority to CA 2406850 priority Critical patent/CA2406850A1/en
Priority to AU5129201A priority patent/AU5129201A/en
Priority to AU2001251292A priority patent/AU2001251292B2/en
Priority to DE2001630975 priority patent/DE60130975T2/en
Priority to EP01924656A priority patent/EP1267701B1/en
Priority to JP2001571983A priority patent/JP5023298B2/en
Priority to IL15206601A priority patent/IL152066A0/en
Publication of WO2001074235A1 publication Critical patent/WO2001074235A1/en
Priority to NO20024744A priority patent/NO20024744L/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
    • A61B1/005—Flexible endoscopes
    • A61B1/0051—Flexible endoscopes with controlled bending of insertion part
    • 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
    • A61B1/005—Flexible endoscopes
    • A61B1/0051—Flexible endoscopes with controlled bending of insertion part
    • A61B1/0052—Constructional details of control elements, e.g. handles
    • A61B1/0053—Constructional details of control elements, e.g. handles using distributed actuators, e.g. artificial muscles
    • 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
    • A61B1/0016—Holding or positioning arrangements using motor drive units
    • 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
    • A61B1/005—Flexible endoscopes
    • A61B1/0058—Flexible endoscopes using shape-memory 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
    • A61B1/005—Flexible endoscopes
    • A61B1/008—Articulations
    • 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
    • A61B1/31—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 the rectum, e.g. proctoscopes, sigmoidoscopes, colonoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A61B5/065—Determining position of the probe employing exclusively positioning means located on or in the probe, e.g. using position sensors arranged on the probe
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/30—Surgical robots
    • A61B2034/301—Surgical robots for introducing or steering flexible instruments inserted into the body, e.g. catheters or endoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/70—Manipulators specially adapted for use in surgery
    • A61B34/74—Manipulators with manual electric input means
    • A61B2034/741—Glove like input devices, e.g. "data gloves"
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/70—Manipulators specially adapted for use in surgery
    • A61B34/74—Manipulators with manual electric input means
    • A61B2034/742—Joysticks

Abstract

A steerable endoscope has an elongated body (102) with a selectively steerable distal portion (104) and an automatically controlled proximal portion (104). The endoscope body is inserted into a patient and the selectively steerable distal portion is used to select a desired path within the patient's body. When the endoscope body is advanced, an electronic motion controller (140) operates the automatically controlled proximal portion to assume the selected curve of the selectively steerable distal portion. Another desired path is selected with the selectively steerable distal portion and the endoscope body is advanced again. As the endoscope body is further advanced, the selected curves propagate proximally along the endoscope body, and when the endoscope body is withdrawn proximally, the selected curves propagate distally along the endoscope body. This creates a serpentine motion in the endoscope body that allows it to negotiate tortuous curves along a desired path through or around and between organs within the body.

Claims

I claim:
1. A method of advancing an instrument along a selected path, the method comprising: selectively steering a distal portion of the instrument to assume a first selected curve along a desired path; and advancing the instrument distally while controlling a proximal portion of the instrument to assume the first selected curve of the distal portion.
2. The method of claim 1, further comprising: further advancing the instrument distally while controlling the proximal portion to propagate the first selected curve proximally along the proximal portion of the instrument.
3. The method of claim 1 , further comprising: withdrawing the instrument proximally while controlling the proximal portion to propagate the first selected curve distally along the proximal portion of the instrument.
4. The method of claim 1, further comprising: selectively steering the distal portion of the instrument to assume a second selected curve along the desired path; and advancing the instrument proximally while controlling the proximal portion to propagate the first and second selected curves proximally along the proximal portion of the instrument.
5. The method of claim 1, wherein the proximal portion of the instrument is automatically controlled by an electronic motion controller.
6. The method of claim 5, further comprising: measuring axial motion of the instrument with an axial motion transducer.
7. The method of claim 1 , wherein the proximal portion of the instrument is controlled such that the first selected curve remains approximately fixed in space as the instrument is advanced proximally and/or withdrawn proximally.
13
8. The method of claim 1, wherein the instrument is an endoscope inserted into a patient's body.
9. The method of claim 1, wherein the instrument is a colonoscope inserted into a patient's colon.
10. A method of advancing an elongated instrument along a selected path, the elongated instrument having a multiplicity of controllable sections, including a first section, a second section and a third section, each section representing one unit of length, the method comprising: controlling the first section to assume a first selected curve along a desired path; advancing the elongated instrument distally a distance of approximately one unit of length while controlling the second section to assume the first selected curve; controlling the first section to assume a second selected curve along the desired path; and further advancing the elongated instrument distally a distance of approximately one unit of length while controlling the second section to assume the second selected curve and controlling the third section to assume the first selected curve.
11. The method of claim 10, further comprising: controlling the first section to assume a third selected curve along the desired path; and further advancing the elongated instrument distally a distance of approximately one unit of length while controlling the second section to assume the third selected curve and controlling the third section to assume the second selected curve.
12. The method of claim 11, further comprising: withdrawing the elongated instrument proximally a distance of approximately one unit of length while controlling the first section to assume the third selected curve, controlling the second section to assume the second selected curve and controlling the third section to assume the first selected curve.
14
13. The method of claim 10, wherein the proximal portion of the instrument is automatically controlled by an electronic motion controller.
14. The method of claim 10, wherein the elongated instrument is an endoscope inserted into a patient's body.
15. The method of claim 10, wherein the elongated instrument is a colonoscope inserted into a patient's colon.
16. Apparatus comprising: an elongated instrument body having a selectively steerable distal portion and an automatically controllable proximal portion, the selectively steerable distal portion being configured to selectively assume a selected curve along a desired path, and the automatically controllable proximal portion being configured to propagate the selected curve proximally along the proximal portion of the elongated instrument body as the elongated instrument body is advanced distally.
17. The apparatus of claim 16, wherein the automatically controllable proximal portion is further configured to propagate the selected curve distally along the proximal portion of the elongated instrument body as the elongated instrument body is withdrawn proximally.
18. The apparatus of claim 16, further comprising: an imaging system for transmitting an image from a distal end to a proximal end of the elongated instrument body.
19. The apparatus of claim 18, wherein the imaging system comprises a fiberoptic imaging bundle extending from the distal end to the proximal end of the elongated instrument body.
20. The apparatus of claim 18, wherein the elongated instrument body is configured as an endoscope for insertion into a patient's body.
15
21. The apparatus of claim 18, wherein the elongated instrument body is configured as a colonoscope for insertion into a patient's colon.
22. The apparatus of claim 16, further comprising: an electronic motion controller for controlling the automatically controllable proximal portion to propagate the selected curve proximally or distally along the proximal portion of the elongated instrument body.
23. The apparatus of claim 22, further comprising: an axial motion transducer for measuring axial motion of the elongated instrument body.
24. The apparatus of claim 16, further comprising: an axial motion transducer for measuring axial motion of the elongated instrument body.
25. Apparatus comprising: an elongated instrument body having a multiplicity of controllable sections, including a first section, a second section and a third section, each section representing one unit of length; and an electronic motion controller configured for controlling each of the first section, the second section and the third section to assume first, second and tliird portions of a selected curve when the elongated instrument body is in an initial position, and configured to, when the elongated instrument advances distally a distance of approximately one unit of length from the initial position, control the second section to assume the first portion of the selected curve and the third section to assume the second portion of the selected curve.
26. The apparatus of claim 25, wherein the electronic motion controller is further configured to, when the elongated instrument withdraws proximally a distance of approximately one unit of length from the initial position, control the first section to assume the second portion of the selected curve and the second section to assume the third portion of the selected curve.
16
27. The apparatus of claim 25, wherein the elongated instrument body further comprises a selectively steerable distal portion.
28. The apparatus of claim 25, further comprising: an axial motion transducer for measuring axial motion of the elongated instrument body.
29. The apparatus of claim 25, further comprising: an imaging system for transmitting an image from a distal end to a proximal end of the elongated instrument body.
30. The apparatus of claim 30, wherein the imaging system comprises a fiberoptic imaging bundle extending from the distal end to the proximal end of the elongated instrument body.
31. The apparatus of claim 25, further comprising: an imaging system for transmitting an image from a distal end of the elongated instrument body to a video monitor.
32. The apparatus of claim 25, wherein the elongated instrument body is configured as an endoscope for insertion into a patient's body.
33. The apparatus of claim 25, wherein the elongated instrument body is configured as a colonoscope for insertion into a patient's colon.
17
PCT/US2001/010907 2000-04-03 2001-04-03 Steerable endoscope and improved method of insertion WO2001074235A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CA 2406850 CA2406850A1 (en) 2000-04-03 2001-04-03 Steerable endoscope and improved method of insertion
AU5129201A AU5129201A (en) 2000-04-03 2001-04-03 Steerable endoscope and improved method of insertion
AU2001251292A AU2001251292B2 (en) 2000-04-03 2001-04-03 Steerable endoscope and improved method of insertion
DE2001630975 DE60130975T2 (en) 2000-04-03 2001-04-03 CONTROLLABLE ENDOSCOPE AND IMPROVED INTRODUCTION PROCESS
EP01924656A EP1267701B1 (en) 2000-04-03 2001-04-03 Steerable endoscope and improved method of insertion
JP2001571983A JP5023298B2 (en) 2000-04-03 2001-04-03 Orientable endoscope
IL15206601A IL152066A0 (en) 2000-04-03 2001-04-03 Steerable endoscope and improved method of insertion
NO20024744A NO20024744L (en) 2000-04-03 2002-10-02 Controllable endoscope and improved insertion method

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US19414000P 2000-04-03 2000-04-03
US60/194,140 2000-04-03
US09/790,204 2001-02-20
US09/790,204 US6468203B2 (en) 2000-04-03 2001-02-20 Steerable endoscope and improved method of insertion

Publications (1)

Publication Number Publication Date
WO2001074235A1 true WO2001074235A1 (en) 2001-10-11

Family

ID=26889722

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/010907 WO2001074235A1 (en) 2000-04-03 2001-04-03 Steerable endoscope and improved method of insertion

Country Status (11)

Country Link
US (11) US6468203B2 (en)
EP (2) EP1267701B1 (en)
JP (1) JP5023298B2 (en)
AT (1) ATE375748T1 (en)
AU (2) AU5129201A (en)
CA (1) CA2406850A1 (en)
DE (1) DE60130975T2 (en)
ES (1) ES2293984T3 (en)
IL (1) IL152066A0 (en)
NO (1) NO20024744L (en)
WO (1) WO2001074235A1 (en)

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