US20140180000A1 - Self-contained sterilizable surgical system - Google Patents
Self-contained sterilizable surgical system Download PDFInfo
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- US20140180000A1 US20140180000A1 US14/193,387 US201414193387A US2014180000A1 US 20140180000 A1 US20140180000 A1 US 20140180000A1 US 201414193387 A US201414193387 A US 201414193387A US 2014180000 A1 US2014180000 A1 US 2014180000A1
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- 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
- A61B1/00131—Accessories for endoscopes
- A61B1/00135—Oversleeves mounted on the endoscope prior to insertion
-
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00006—Operational features of endoscopes characterised by electronic signal processing of control signals
-
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
-
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00025—Operational features of endoscopes characterised by power management
- A61B1/00027—Operational features of endoscopes characterised by power management characterised by power supply
- A61B1/00032—Operational features of endoscopes characterised by power management characterised by power supply internally powered
-
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00043—Operational features of endoscopes provided with output arrangements
- A61B1/00045—Display arrangement
-
- 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
- A61B1/00112—Connection or coupling means
- A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
- A61B1/00128—Connectors, fasteners and adapters, e.g. on the endoscope handle mechanical, e.g. for tubes or pipes
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- 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
- A61B1/00142—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 means for preventing contamination, e.g. by using a sanitary sheath
-
- 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
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- 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
- A61B1/0057—Constructional details of force transmission elements, e.g. control wires
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- 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
- A61B1/015—Control of fluid supply or evacuation
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- 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
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- 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
- A61B1/0661—Endoscope light sources
- A61B1/0676—Endoscope light sources at distal tip of an endoscope
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- 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
- A61B1/0661—Endoscope light sources
- A61B1/0684—Endoscope light sources using light emitting diodes [LED]
-
- 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
- A61B1/121—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 provided with means for cleaning post-use
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- Optics & Photonics (AREA)
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- Microelectronics & Electronic Packaging (AREA)
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Abstract
Description
- The present application is a continuation of U.S. patent application Ser. No. 10/676,046, filed on Sep. 30, 2003, which claims priority to and benefit from U.S. Provisional Patent Application Ser. No. 60/415,313, filed on Sep. 30, 2002, the entire contents of each of which being incorporated herein by reference.
- The present invention relates to a surgical system. More specifically, the present invention relates to a self-contained, sterilizable surgical system, such as an endoscope system.
- There are various different surgical systems that enable a surgical procedure or a surgical site to be viewed. One such type of surgical device is an endoscope. Such a device may be inserted into a patient's body during a surgical procedure to illuminate, view and/or manipulate a surgical site within the patient's body. Conventional endoscopes typically employ a flexible endoscope shaft, a first end of which is insertable into a patient's body. The shaft has a camera mounted at the first end and is connected at its second end to a power source for providing power to the camera. In addition, the shaft has a fiberoptic bundle that runs therethrough and connects to a light source outside of the patient's body. The light source is powered by another power source and the light from the light source is conveyed from the second end, through the fiber-optic bundle in the shaft, to the first end in order to illuminate a surgical site within the patient's body. In addition, the second end of the endoscope is connected to a television monitor, having still another power source, in order to display the images received by the camera.
- Thus, conventional surgical systems of this type, e.g., endoscope systems, are typically bulky, complex and difficult to maneuver.
- The present invention relates to a surgical system, e.g., an endoscope system. According to one embodiment, an endoscope system includes a shaft having a light source and/or an image capture device, e.g., a camera, each of which may be mounted at the distal end of the shaft or which may be connected to the distal end of the shaft by fiber optics. The light source may be a light emitting diode or an array of light emitting diodes, and may have its own power source located at the distal end of the shaft. The shaft has a sheath that is sealed so as to be sterilizable, e.g., autoclavable. Advantageously, the light source and/or the image capture device are also sealed within the distal end of the shaft so as to be sterilizable, e.g., autoclavable. The shaft also includes a working channel for permitting the passage of tools through the shaft, an irrigation/aspiration channel for permitting fluid to be transmitted through the shaft, and an electric cable for transmitting data or power through the shaft.
- The shaft is coupled, either fixedly or detachably, at its proximal end to a control module having a video processor. Preferably, the control module is sterilizable, e.g., autoclavable. Image data received by the image capture device is transmitted via a data transfer cable of the electric cable in the shaft to the video processor and is displayed on an display screen integrally mounted to the control module. The control module may include an irrigation/aspiration system for conveying fluid through the irrigation/aspiration channel of the shaft. The control module may also include a control unit, which enables a user to control certain functions of the endoscope system, as well as a controller, which automatically controls certain functions of the endoscope system.
- The control module is coupled to a power module. The power module includes steering motors connected to steering cables in the shaft. In addition, the power module includes drive motors for driving, e.g., the irrigation/aspiration system, the steering motors, etc. The power module may also include a power source for providing power to the motors, the controller, the light source, the image capture device, etc. In one embodiment, the control module and the power module are contained in a single unit.
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FIG. 1 is a perspective view of several components of an endoscope system, according to one example embodiment of the present invention; -
FIG. 2 is a perspective view of additional components of the endoscope system illustrated inFIG. 1 ; -
FIG. 3 is a schematic view of a control unit of the endoscope system illustrated inFIG. 1 ; -
FIG. 4 is a front end view of a coupling of a power transfer cable illustrated inFIG. 2 ; -
FIG. 5 is a schematic view illustrating a motor arrangement of the endoscope system illustrated inFIG. 2 ; -
FIG. 6 is a schematic view of the endoscope system illustrated inFIGS. 1 and 2 ; -
FIG. 7 is a schematic view of a memory device of the endoscope system illustrated inFIG. 1 ; -
FIG. 8 is a perspective view of several components of an endoscope system, according to another example embodiment of the present invention; -
FIG. 9 is a perspective view of several components of an endoscope system, according to still another example embodiment of the present invention; and -
FIG. 10 is a perspective view that illustrates several components of a hand-held surgical system, according to still another example embodiment of the present invention. - One example embodiment of a surgical system, in this case an
endoscope system 10, according to the present invention is illustrated inFIGS. 1 to 7 .FIG. 1 illustrates several components of theendoscope system 10, including ashaft 12 and acontrol module 14 to which theshaft 12 is attached. Although the example embodiment described herein describes theshaft 12 as being fixedly attached to thecontrol module 14, it is recognized that, in alternative embodiments of the present invention, theshaft 12 may be detachably coupled to thecontrol module 14. Furthermore, it should be recognized that while thesurgical system 10 is described in connection with an endoscope, the surgical system may also be employed in connection with a proctoscope, an anoscope, etc. - According to one embodiment, the
shaft 12 includes atubular sheath 13, which may include a coating or other sealing arrangement to provide a fluid-tight seal between an interior region of theshaft 12 and the environment. Thesheath 13 may be formed of a tissue-compatible, sterilizable elastomeric material. Preferably, thesheath 13 may be formed of a material that is autoclavable. In addition, thesheath 13 may be formed of a material having a high or relatively high lubricity. For instance, thesheath 13 may be formed of a material such as Teflon™ (i.e., a fluoropolymer, e.g., polytetrafluoroethylene—“PTFE”), silicone, a Teflon™/silicone combination, such as, for example, SIL-KORE™ (made by W. L. Gore & Associates), “EPTFE”, e.g., expanded teflon, etc. Other suitable materials and sealing arrangements that may be employed are described in further detail in Applicants' co-pending U.S. patent application Ser. No. 10/099,634, filed on Mar. 15, 2002, now issued as U.S. Pat. No. 7,951,071, which is expressly incorporated herein by reference in its entirety. - In this embodiment, the
shaft 12 has adistal end 12 a, which is insertable into a patient's body, and aproximal end 12 b, which is coupled, e.g., either fixedly or detachably, to thecontrol module 14. In this embodiment, both alight source 26 and animage capture device 28 are mounted on thedistal end 12 a of theshaft 12. In other example embodiments, thelight source 26 and/or theimage capture device 28 are mounted in thecontrol module 14. If thelight source 26 is mounted in thecontrol module 14, the light may be transmitted from thelight source 26 to thedistal end 12 a of theshaft 12 via fiber optics. If theimage capture device 28 is mounted in thecontrol module 14, the image data (including light reflected within a body, for example) may be transmitted to theimage capture device 28 from thedistal end 12 a of theshaft 12 via fiber optics. - The
image capture device 28 may include a lens and an image sensor, e.g., a light sensitive device such as a CCD or CMOS-type image sensor, that is positioned to capture an image via the lens. In one embodiment, theimage capture arrangement 28 may further include a cleaning arrangement for cleaning debris from the lens. Advantageously, thelight source 26 and theimage capture device 28 are sealed within thedistal end 12 a of theshaft 12 such that thelight source 26 and theimage capture device 28 are also sterilizable, e.g., autoclavable. - According to the embodiment shown in
FIG. 1 , theshaft 12 also defines anelectric cable 20 that extends from thedistal end 12 a of theshaft 12 to theproximal end 12 b of theshaft 12. According to one embodiment of the present invention, theelectric cable 20 includes apower transfer cable 22 and adata transfer cable 24. A distal end of thepower transfer cable 22 is coupled to thelight source 26 and/or to theimage capture device 28 that are mounted on thedistal end 12 a of the shaft. A proximal end of thepower transfer cable 22 is coupled to a power source, such aspower source 44 disposed in thecontrol module 14 or, alternatively, to apower source 62 disposed in the power module 50 (described in greater detail below in connection withFIG. 2 ). Thepower transfer cable 22 may be configured to provide power from thepower source 44 or thepower source 62 to thelight source 26 and/or theimage capture device 28. - Alternatively or additionally, an additional power source may be mounted at the
distal end 12 a of theshaft 12 adjacent to thelight source 26 and theimage capture device 28, and may provide power to thelight source 26 and/or theimage capture device 28. For instance,FIG. 8 illustrates one embodiment of the present invention, in which anendoscope system 400 has an additional power source 27 a that is mounted at thedistal end 12 a of theshaft 12 adjacent to thelight source 26 and theimage capture device 28. The additional power source 27 a provides power to thelight source 26 and/or theimage capture device 28. Thus, according to this embodiment, the need for thepower transfer cable 22 in theshaft 12 may be eliminated, thereby decreasing the cross-sectional area of theshaft 12 if desired. Since theshaft 12 may during operation be inserted through an incision made by a surgeon in a patient, and since it is generally desirable to minimize the size of such incisions, e.g., for healing purposes, a decrease in the cross-sectional area of theshaft 12 may be advantageous in that it requires a smaller incision for insertion into a patient. - It should be understood that, according to various other embodiments of the present invention, the power source for the
light source 26 and theimage capture device 28 may be located at any position along theshaft 12, or may be located at any other position. In those embodiments in which the power source for thelight source 26 and theimage capture device 28 are located at a position along theshaft 12, thepower transfer cable 22 may extend within theshaft 12 between thelight source 26 and/or theimage capture device 28 and the power source. For instance,FIG. 9 illustrates another embodiment of the present invention, in which anendoscope system 500 has anadditional power source 27 b that is located within a portion of theshaft 12, between thedistal end 12 a and theproximal end 12 b of theshaft 12. Theadditional power source 27 b provides power to either or both of thelight source 26 and theimage capture device 28. Thus, according to this embodiment, the need for thepower transfer cable 22 in theshaft 12 may be partially eliminated, e.g., in the portion of the shaft between theadditional power source 27 b and theproximal end 12 b of theshaft 12. - Referring back to
FIG. 1 , thelight source 26 mounted to thedistal end 12 a of theshaft 12 may be any type of light source, but may include a light emitting diode or an array of light emitting diodes. The light emitting diode or array of light emitting diodes may emit, e.g., white light. The relatively low power requirements for a light emitting diode, or for an array of light emitting diodes, as compared to the power requirements for the light source of a conventional endoscope system, enables the power source to be positioned at thedistal end 12 a of theshaft 12. - As mentioned above, the
electric cable 20 in theshaft 12 may also include adata transfer cable 24. A distal end of thedata transfer cable 24 is coupled to theimage capture device 28 that is mounted on thedistal end 12 a of theshaft 12. A proximal end of thedata transfer cable 24 is coupled to avideo processing module 30 disposed within thecontrol module 14. In this embodiment, thevideo processor 30 is configured to receive data signals from theimage capture device 28 via thedata transfer cable 24. Alternatively, theshaft 12 may not have adata transfer cable 24 but rather a wireless receiver and transmitter arrangement that enables the data to be transferred wirelessly. - According to one embodiment of the present invention, the
shaft 12 may also include a workingchannel 16 that extends from thedistal end 12 a of theshaft 12 to theproximal end 12 b of theshaft 12. At thedistal end 12 a of theshaft 12 is a working channel orifice 16 a that leads into the workingchannel 16. The workingchannel 16 communicates with a workingchannel passage 16 c disposed in thecontrol module 14, so that the workingchannel 16 is accessible to a user via the workingchannel passage 16 c in thecontrol module 14. The workingchannel 16 may be configured to permit the passage of small endoscopic tools or the like, such as a cutting blade, thereby enabling a user to manipulate tissue positioned adjacent to thedistal end 12 a of theshaft 12 through theshaft 12 and without removing thedistal end 12 a of theshaft 12 from the patient's body. - According to one embodiment of the present invention, the
shaft 12 also includes an irrigation/aspiration channel 32 that extends from thedistal end 12 a of theshaft 12 to theproximal end 12 b of theshaft 12. At thedistal end 12 a of theshaft 12 is an irrigation/aspiration channel orifice 32 a that leads into the irrigation/aspiration channel 32. The irrigation/aspiration channel 32 may be coupled to or in communication with an irrigation/aspiration system 19 disposed in thecontrol module 14 and/or the power module 50 (described below in connection withFIG. 2 ). The irrigation/aspiration channel 32 is configured to convey fluid in a first direction through the irrigation/aspiration channel 32, e.g., towards thedistal end 12 a of theshaft 12, in order to irrigate a surgical site, and/or to convey fluid in the opposite direction through the irrigation/aspiration channel 32, e.g., away from thedistal end 12 a of theshaft 12, in order to aspirate a surgical site. - According to one embodiment of the present invention, the
shaft 12 also defines at least one steering cable for steering at least a portion of theshaft 12. In one embodiment, the entire length of theshaft 12 is steerable, while according to other embodiments, only a portion of theshaft 12, such as a portion adjacent to thedistal end 12 a of theshaft 12, is steerable. In the example embodiment shown, theshaft 12 includes afirst steering cable 34 and asecond steering cable 36. Thefirst steering cable 34 is configured to steer theshaft 12 in first and second directions that are 180 degrees apart relative to each other, e.g., north-south, while thesecond steering cable 36 is configured to steer theshaft 12 in third and fourth directions that are 180 degrees apart relative to each other and that are 90 degrees apart relative to the first and second directions, e.g., east-west. It should be understood that reference herein to north, south, east and west is made to a relative coordinate system. Advantageously, each of thefirst steering cable 34 and thesecond steering cable 36 extends from thedistal end 12 a of theshaft 12, or from a location near to thedistal end 12 a of theshaft 12, to theproximal end 12 b of theshaft 12. It should be understood, however, that while a single steering cable is shown and described herein for steering theshaft 12 in each of the above-mentioned directions, other embodiments of the present invention may employ more than one steering cable for these purposes, as is described below. The steering cables may be arranged and configured as described, for example, in U.S. patent application Ser. No. 09/510,923, entitled “A Carriage Assembly for Controlling a Steering Wire Mechanism Within a Flexible Shaft,” now issued as U.S. Pat. No. 6,517,565, which is expressly incorporated herein in its entirety by reference thereto. - At the
proximal end 12 b of theshaft 12, thefirst steering cable 34 and thesecond steering cable 36 are coupled to drive elements of thecontrol module 14 and/or thepower module 50. One such arrangement, which is shown and described inFIG. 3 (discussed in greater detail below), provides that thefirst steering cable 34 and thesecond steering cable 36 are coupled to driveshafts steering motors - As mentioned above,
FIG. 1 also illustrates acontrol module 14 for controlling the operation of theendoscope system 10. Advantageously, thecontrol module 14 is a hand-held device that provides acontrol unit 150 having control mechanisms for a user to control certain functions of theendoscope system 10. Preferably, thecontrol module 14, either separately or when connected to theshaft 12, is sterilizable, e.g., autoclavable. Thecontrol module 14 includes acontroller 122 coupled to the various components of theshaft 12, thecontrol module 14 and thepower module 50. Advantageously, thecontroller 122 is configured to control additional functions of theendoscope system 10.FIG. 6 , which is described in greater detail below, illustrates schematically one embodiment of thecontroller 122 connected to other components of theendoscope system 10. - According to the example embodiment of the present invention, the
control module 14 includes avideo processor 30 that receives data signals from theimage capture device 28 via thedata transfer cable 24 of theshaft 12 or via the wireless arrangement. Thecontrol module 14 may also include anintegral display screen 46 that is coupled to thevideo processor 30. Upon receiving signals from theimage capture device 28 via thedata transfer cable 24, thevideo processor 30 is configured to process the signals and to display an image on thedisplay screen 46 corresponding to the image received by theimage capture device 28. According to one embodiment, thedisplay screen 46 is moveable, e.g., rotatable, slidable, etc., relative to thecontrol module 14. In this manner, thedisplay screen 46 may be hidden from view when in the retracted position and may be viewable by a user when in an extended position. As previously mentioned, thecontrol module 14 may be configured with appropriate materials and seals such that, when thedisplay screen 46 in the retracted position, thecontrol module 14 is sterilizable, e.g., autoclavable. Thus, thecontrol module 14 including thedisplay screen 46 may be protected from any environment which they may be employed in. - In addition to the video data received from the image capture device, the
display screen 46 may display data corresponding to the operation of theendoscopic system 10. For instance, according to one embodiment, thedisplay screen 46 provides an indication, via indicators such asindicators 18 a and 18 b (shown inFIG. 6 and described in greater detail below), corresponding to whether the system is turned on or off, or corresponding to the status of the steering cables, the irrigation/aspiration system 19, or any other aspect of theendoscopic system 10. - The
control module 14 may also include an irrigation/aspiration system 19, such as a pump, that is configured to pump fluid in a first direction through the irrigation/aspiration channel 32 toward thedistal end 12 a of theshaft 12 in order to irrigate a surgical site. In addition, thecontrol module 14 may include a second, or the same, pump (not shown) that is configured to pump fluid in the opposite direction through the irrigation/aspiration channel 32 away from thedistal end 12 a of theshaft 12 so as to aspirate the surgical site. The operation of the irrigation/aspiration system may be controlled by an irrigation/aspiration control switch 39 of acontrol unit 150 of thecontrol module 14. The pump may be powered by thepower source 44 in thecontrol module 14, by thepower source 62 in thepower module 50, or by any other power source. - The
control module 14 is coupled to one end 48 a of apower transfer cable 48. Thepower transfer cable 48 may be fixedly or detachably coupled to thecontrol module 14. Additional features of thepower transfer cable 48 are described in connection withFIG. 2 below. - The
control module 14 may also include, as part of thecontrol unit 150, asteering controller 1300, aswitch 312 and a two-way rocker 314. Thesteering controller 1300, theswitch 312 and the two-way rocker 314 are described in more detail below in connection withFIG. 3 . -
FIG. 2 illustrates apower module 50 to which thecontrol module 14 may be fixedly or detachably coupled. Although the example embodiment described herein includes thepower module 50 being detachably coupled to thecontrol module 14, it should be appreciated that, in alternative embodiments of the present invention, thepower module 50 may be fixedly coupled to thecontrol module 14. In this embodiment, thepower module 50 may be worn by a user, such as by using belt 51. - The
control module 14 is coupled to thepower module 50 via apower transfer cable 48. As illustrated inFIG. 2 , thepower transfer cable 48 may be detachably coupled by acoupling 56 at anend 48 b of thepower transfer cable 48 to a correspondingcoupling 58 of thepower module 50. According to one embodiment, thecoupling 56 may include a key structure 56 a to properly orient thecoupling 56 to the mating andcomplementary coupling 58 disposed on thepower module 50. Such key structure 56 a may be provided on either one, or both, of thecoupling 56 and the mating andcomplementary coupling 58 disposed on thepower module 50. For instance, thecoupling 56 may include a quick-connect type connector, which may use, for example, a simple pushing motion to engage thecoupling 56 of thepower transfer cable 48 to thecoupling 58 of thepower module 50. Seals may be provided in order to provide a fluid-tight seal between the interior of thecoupling 56 and the environment. In an alternative embodiment, thepower transfer cable 48 is fixedly coupled both at its first end 48 a to the control module 14 (seeFIG. 1 ), and at itssecond end 48 b to thepower module 50. - Advantageously, the
power module 50 also houses steering and drive motors. For instance, according to one embodiment of the present invention, thepower module 50 houses several steering motors for operating thesteering cables shaft 12. One example embodiment of such an arrangement of steering motors is illustrated inFIG. 5 , which is described in greater detail below. In addition, according to one embodiment of the present invention, thepower module 50 houses a drive motor for operating the irrigation/aspiration system 19, etc. - In addition, the
power module 50 may include a fluid reservoir 60 and apower source 62, such as a battery. According to one embodiment, the fluid reservoir 60 and thepower source 62 are removable from thepower module 50. In this manner, the fluid reservoir 60 may be refilled with fluid, e.g., water, as needed. According to one embodiment of the present invention, the fluid reservoir 60 may provide fluid to be pumped to a surgical site by an irrigation/aspiration system 19. Alternatively, the fluid reservoir 60 may store fluid removed from a surgical site by the irrigation/aspiration system 19. In this embodiment, the fluid reservoir 60 may be removed from thepower module 50 in order to be emptied of its contents. In addition, thepower source 62 may be removable from thepower module 50 in order to be recharged as needed. As previously mentioned, thepower source 62 may provide power, according to various embodiments of the present invention, to thelight source 26 and theimage capture device 28. In this embodiment, however, thepower source 62 provides power to thecontroller 122 and/or the irrigation/aspiration system 19 and/or the steering and drive motors, etc. disposed in thecontrol module 14 and thepower module 50. According to still another embodiment, thepower module 50 includes a power cord 59 that enables thepower module 50 to be plugged into an electrical socket (not shown) or other conventional power source, thereby eliminating the need for thepower source 62 or providing back-up power for thepower source 62. - Referring now to
FIG. 6 , there is seen a schematic view of theendoscopic system 10. Thecontroller 122 may be disposed in thecontrol module 14, and is configured to control various functions and operations of theendoscopic system 10. Amemory unit 130 is provided and may include memory devices, such as, a ROM component 132 and/or aRAM component 134 for storing programs or algorithms employed by thecontroller 122. ROM component 132 is in electrical and logical communication withcontroller 122 via line 136, andRAM component 134 is in electrical and logical communication withcontroller 122 via line 138.RAM component 134 may include any type of random-access memory, such as, for example, a magnetic memory device, an optical memory device, a magneto-optical memory device, an electronic memory device, etc. Similarly, ROM component 132 may include any type of read-only memory, such as, for example, a removable memory device, such as a PC-Card or PCMCIA-type device. It should be appreciated that ROM component 132 andRAM component 134 may be embodied as a single unit or may be separate units and that ROM component 132 and/orRAM component 134 may be provided in the form of a PC-Card or PCMCIA-type device. - The
controller 122 is further connected to thedisplay screen 46 via line 154 and to theindicators 18 a, 18 b viarespective lines 156, 158.Lines controller 122 tomotors control unit 150, which may include the control features of thecontrol module 14 such as asteering controller 1300, the irrigation/aspiration system switch 39, etc. is electrically and logically connected tocontroller 122 vialine 152. Additional features of thecontrol unit 150 are illustrated inFIG. 3 , which is described in greater detail below. In addition, thecontroller 122 may be electrically and logically connected bydata transfer cable 24 to theimage capture device 28. Furthermore, thecontroller 122 may be electrically and logically connected byline 120 to one ormore memory units 174, an example of which is illustrated inFIG. 7 and described in greater detail below. - As described above, the
power module 50 includes motors configured to drive thesteering cables FIG. 5 illustrates schematically one possible arrangement of motors within thepower module 50. In the example embodiment illustrated schematically inFIG. 5 , threeelectric motors power source 62, are disposed in thepower module 50. It should be appreciated, however, that any appropriate number of motors may be provided for this purpose, and the motors may operate via battery power, line current, a DC power supply, an electronically controlled DC power supply, AC power, etc. It should also be appreciated that thesteering motors - According to one embodiment of the present invention, at the
proximal end 12 b of theshaft 12, thefirst steering cable 34 and thesecond steering cable 36 are coupled to drive elements (not shown) of thecontrol module 14 that in turn are coupled to driveshafts steering motors power module 50. It should be appreciated that, according to various other embodiments of the present invention, driveshafts steering motors control module 14. - Referring to
FIG. 5 , anoutput shaft 86 of amotor 84 engages aconnector 63 of thecoupling 56 of thepower transfer cable 48 when thecoupling 56 is engaged with thepower module 50 to thereby drive thefirst steering cable 34. It should be understood that, while only asingle steering cable 34 is shown and described for steering theshaft 12 in the north-south direction, the present invention may employ, in accordance with an alternative embodiment of the invention, a pair of steering cables via a pulley arrangement for this purpose. In addition, anoutput shaft 92 of amotor 90 engages theconnector 66 of thecoupling 56 when thecoupling 56 is engaged with thepower module 50 to thereby drive thesecond steering cable 36. Again, it should be understood that, while only asingle steering cable 36 is shown and described for steering theshaft 12 in the east-west direction, the present invention may employ, in accordance with an alternative embodiment of the invention, a pair of steering cables via a pulley arrangement for this purpose. Themotors carriage 100, which is selectively movable via anoutput shaft 98 of amotor 96 between a first position and a second position to selectively engage and disengage themotors shaft 12 to become taut and steerable or limp as necessary. It should be appreciated that other mechanical, electrical or electromechanical mechanisms may be used to selectively engage and disengage the steering mechanism. The motors may be arranged and configured as described, for example, in U.S. patent application Ser. No. 09/510,923, entitled “A Carriage Assembly for Controlling a Steering Wire Mechanism Within a Flexible Shaft,” now issued as U.S. Pat. No. 6,517,565, which is expressly incorporated herein in its entirety by reference thereto. - Referring now to
FIG. 4 , there is illustrated a front end view of thecoupling 56 of thepower transfer cable 48. Thecoupling 56 includes afirst connector 63 and asecond connector 66, each rotatably secured to thecoupling 56. Each of theconnectors connectors respective drive shafts power module 50, as more fully described below. It should be appreciated that complementary projections may be provided onrespective drive shafts steering cables shaft 12 as described below. It should also be appreciated that the recesses may be provided on thedrive shafts connectors connectors drive shafts connectors steering cables distal end 12 a of theshaft 12.FIG. 4 also illustrates afluid connector 73. Thefluid connector 73 provides a connection from the fluid reservoir 60 in thepower module 50 to the irrigation/aspiration system 19 in thecontrol module 14. In addition,FIG. 4 illustrates apower connector 75. In the above-described embodiments wherein thepower source 62 provides power to components of theshaft 12 and thecontrol module 14, thepower connection 75 provides a connection from thepower source 62 to these components. - Referring now to
FIG. 3 , there is seen a schematic view of thecontrol unit 150 of thecontrol module 14. In accordance with one embodiment of the present invention, thecontrol unit 150 includes asteering controller 1300, having a plurality ofswitches way rocker 1310. The operation of theswitches 1302, 1304, via therocker 1310, controls the operation of thefirst steering cable 34 via thesteering motor 84. Similarly, the operation of theswitches rocker 1310, controls the operation of thesecond steering cable 36 via thesteering motor 90. It should be appreciated that therocker 1310 and theswitches switches 1302, 1304 steers theshaft 12 in the north-south direction and that the operation of theswitches shaft 12 in the east-west direction. Again, reference herein to north, south, east and west is made to a relative coordinate system. Alternatively, a digital joystick, analog joystick, etc. may be provided in place of therocker 1310 and theswitches switches - Furthermore, the
control unit 150 may include aswitch 312, which further controls certain functions of theendoscope system 10 in accordance with an operating program or algorithm employed by thecontroller 122. For instance, the operation ofswitch 312 may control the operation of themotor 96 to selectively engage and disengage the steering mechanism, or may control the activation of thelight source 26 or theimage capture device 28. Thecontrol unit 150 may also be provided with aswitch 39, the operation of which may further control other functions of theendoscope system 10 in accordance with the operating program or algorithm employed by thecontroller 122. For example, operation of theswitch 39 may control the activation of the irrigation/aspiration system 19. Thecontrol unit 150 may also include a two-way rocker 314 having first andsecond switches switches endoscope system 10 in accordance with the operating program or algorithm employed by thecontroller 122. For example, operation of the two-way rocker 314 may control a zoom or magnification function of theimage capture device 28. - The
control unit 150 may include a separate controller 322, which is electrically and logically connected with the switches 302, 304, 306, 308 vialine 324, with theswitches line 326, withswitch 312 vialine 328 and withswitch 39 vialine 330. Theindicators 18 a, 18 b and thedisplay device 46 may be electrically and logically connected to the controller 322 rather thancontroller 122. - According to one embodiment of the present invention, one or more of the
shaft 12, thecontrol module 14 and thepower module 50 may include a memory unit, such asmemory unit 174 illustrated schematically inFIG. 7 . Thememory unit 174 may store information as described, for example, in U.S. patent application Ser. No. 09/723,715, filed on Nov. 28, 2000, now issued as U.S. Pat. No. 6,793,652, U.S. patent application Ser. No. 09/836,781, filed on Apr. 17, 2001, now issued as U.S. Pat. No. 6,981,941, U.S. patent application Ser. No. 09/887,789, filed on Jun. 22, 2001, now issued as U.S. Pat. No. 7,032,798, and U.S. patent application Ser. No. 10/099,634, filed on Mar. 15, 2002, now issued as U.S. Pat. No. 7,951,071, each of which is expressly incorporated herein by reference in its entirety. For instance, as illustrated inFIG. 7 , thememory unit 174 may include adata connector 272 that includescontacts 276, each electrically and logically connected tomemory unit 174 via arespective line 278.Memory unit 174 is configured to store, for example, aserial number data 180, an attachment type identifier (ID)data 182 and ausage data 184.Memory unit 174 may additionally store other data. Both theserial number data 180 and theID data 182 may be configured as read-only data. In the example embodiment,serial number data 180 is data uniquely identifying the particular component, whereas theID data 182 is data identifying the type of the component, such as, for example, a shaft. Theusage data 184 represents usage of the particular component, such as, for example, the number of times theshaft 12 has been employed or the number of times that thelight source 26 has been activated. It should be appreciated that theshaft 12 may be designed and configured to be used a single time or, in such embodiments wherein theshaft 12 is sterilizable or autoclavable, multiple times. Thecontrol module 14 and/or thepower module 50 may also be designed and configured to be used a predetermined number of times. Accordingly, theusage data 184 may be used to determine whether theshaft 12 has been used and/or whether the number of uses has exceeded the maximum number of permitted uses. According to one embodiment, an attempt to use the shaft 12 (or thecontrol module 14 and the power module 50) after the maximum number of permitted uses has been reached may generate an ERROR condition. - While the present invention has been described hereinabove in connection with endoscope systems, it should be recognized that other types of surgical systems may be employed for various different types of surgical procedures, e.g., proctoscopy, anoscopy, etc. For instance,
FIG. 10 is a diagram that illustrates various components of a surgical system 600. The surgical system 600 may be configured as a hand-held device and may be employed in a manner that is different from an endoscope system. The surgical system 600 may include ashaft 612 that is connected to acontrol module 614, which in turn is connected to ahandle 650. For the purposes of clarity, other features of the surgical systems that are illustrated inFIGS. 1 to 9 , e.g., the control module, display screen, power sources, etc., are not illustrated inFIG. 10 . However, it should be recognized that, in accordance with various embodiments of the present invention, any or all of these features may be employed in the surgical system 600. - The present invention, in accordance with various embodiments thereof, provides advantages over conventional surgical, e.g., endoscope, systems. For instance, a conventional endoscope is typically cleaned or disinfected prior to use within a patient in conformance with a standard referred to as high-level disinfectance, rather than sterilization. Sterilization provides a greater degree of cleanliness, and thus a high standard of patient safety, than high-level disinfectance. Conventional endoscopes typically can not be sterilized prior to use within a patient because the materials employed in the manufacture of conventional endoscopes are not sterilizable, and because conventional endoscope are typically not adequately sealed to withstand a sterilization process. Unlike conventional endoscope systems, various components of the
endoscope system 10 of the present invention, most particularly theshaft 12, thelight source 26, theimage capture device 28, thecontrol module 14 and in some instances thepower module 50, may be sterilizable or autoclavable, thereby providing a higher level of safety to a patient. Furthermore, because various components of theendoscope system 10 of the present invention, e.g., theshaft 12, thelight source 26, theimage capture device 28, thecontrol module 14 and thepower module 50, may be sterilizable or autoclavable, these components can be used more than once and on more than one patient, providing significant cost savings as compared to conventional endoscope systems that must be discarded after one use. - In addition, according to some embodiments, the surgical systems of the present invention employ a light emitting diode or an array of light emitting diodes as the
light source 26 at thedistal end 12 a of theshaft 12. Thus, the surgical systems of the present invention may provide for a more efficient use of the light as compared to conventional surgical, e.g., endoscope, systems employing a light source outside of the patient's body and a fiber-optic bundle to transport the light through the shaft, since these conventional surgical, e.g., endoscope, systems lose a large portion of the light before the light reaches the surgical site. In addition, the use by the present invention of a light emitting diode or an array of light emitting diodes provides satisfactory illumination of a surgical site while requiring very little power. Thus, according to one embodiment, a power source may be provided at thedistal end 12 a of theshaft 12, or at any other location along theshaft 12, in thecontrol module 14 or in thepower module 50. - In addition, according to some embodiments, the surgical system of the present invention employs a
display screen 46 that is integral with the hand-heldcontrol module 14, thereby replacing the bulkiness and complexity of a separate television monitor for this purpose. Furthermore, according to some embodiments, the surgical system of the present invention employs power sources, motors, etc. that are integral with either theshaft 12, thecontrol module 14 or thepower module 50, enabling the surgical system to be self-contained, e.g., requiring no additional external power supplies, drive mechanisms, etc. - Thus, the several aforementioned objects and advantages of the present invention are most effectively attained. Those skilled in the art will appreciate that numerous modifications of the exemplary embodiment described hereinabove may be made without departing from the spirit and scope of the invention. Although a single exemplary embodiment of the present invention has been described and disclosed in detail herein, it should be understood that this invention is in no sense limited thereby.
Claims (19)
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ATE554695T1 (en) | 2012-05-15 |
EP1545289B1 (en) | 2010-04-28 |
WO2004030526A1 (en) | 2004-04-15 |
JP2010088911A (en) | 2010-04-22 |
US8696552B2 (en) | 2014-04-15 |
EP2186465A1 (en) | 2010-05-19 |
CN101904734B (en) | 2013-01-02 |
US20040111012A1 (en) | 2004-06-10 |
JP2010088912A (en) | 2010-04-22 |
ES2341768T3 (en) | 2010-06-28 |
ES2382762T3 (en) | 2012-06-13 |
AU2003275336A1 (en) | 2004-04-23 |
EP1545289A1 (en) | 2005-06-29 |
ATE465672T1 (en) | 2010-05-15 |
CN101904734A (en) | 2010-12-08 |
JP5267951B2 (en) | 2013-08-21 |
JP4746320B2 (en) | 2011-08-10 |
EP2186465B1 (en) | 2012-04-25 |
EP2277434B1 (en) | 2013-06-19 |
CN1684626A (en) | 2005-10-19 |
JP2006501035A (en) | 2006-01-12 |
EP2277434A2 (en) | 2011-01-26 |
CA2500243A1 (en) | 2004-04-15 |
EP2277434A3 (en) | 2011-03-23 |
CA2500243C (en) | 2013-07-02 |
DE60332362D1 (en) | 2010-06-10 |
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