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
  • A61B1/00112—Connection or coupling means
  • A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
  • A61B1/00126—Connectors, fasteners and adapters, e.g. on the endoscope handle optical, e.g. for light supply cables
• • 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
  • A61B1/00011—Operational features of endoscopes characterised by signal transmission
  • A61B1/00013—Operational features of endoscopes characterised by signal transmission using optical means
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
  • A61B1/00064—Constructional details of the endoscope body
  • A61B1/00071—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
  • A61B1/0011—Manufacturing of endoscope parts
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
  • A61B1/00112—Connection or coupling means
  • A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
  • A61B1/00124—Connectors, fasteners and adapters, e.g. on the endoscope handle electrical, e.g. electrical plug-and-socket connection
• • 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
  • A61B1/00163—Optical arrangements
  • A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
• • 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
• • 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
  • A61B1/051—Details of CCD assembly
• • 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
  • A61B1/053—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 being detachable

Definitions

• the invention relates to a video endoscope having an elongate, preferably hermetically sealed, housing for receiving an image sensor unit, in particular a video camera, preferably arranged in the distal region of the housing, wherein an optical transmitter unit connected to the image sensor unit is arranged in the housing.
• Video endoscopes are elongated and formed with a small cross-section.
• Image sensors and the upstream optics are usually arranged in generic video endoscopes in the distal region of the endoscope shaft, ie in the region of the endoscope tip.
• Image signals and control signals are transmitted via signal lines to or from the proximal end, ie the handle.
• Video endoscopes are therefore usually hermetically sealed.
• the hermetic seal prevents the penetration of steam into the hermetically sealed area. This extends in conventional video optics from the stem tip to the handle.
• Video endoscopes are for application reasons, e.g. for insertion into body ducts of a patient, usually elongated and formed with a small cross-section.
• Corresponding video endoscopes transmit video signals from the distally arranged video camera via electrical lines to a proximal end of the video endoscope, through the housing of which with a contacting device, the video signals are led to the outside. Between the contacting device and the video camera, the conductors or lines run on an insulating conductor carrier.
• DE 10 2004 023 866 B3 shows a conductor carrier in the form of printed circuit boards both in flexible and in rigid form.
• the conductor carrier can also be used to transmit forces, e.g. Use rotational forces, for example, to rotate the video camera from the proximal end of the video endoscope or to move longitudinally for focusing purposes.
• the circuit board may also be in the form of a triangular or round tube.
• optics are typically located at the distal tip of the endoscope shaft, such as a straight-ahead or side-facing lens, which is followed by an image sensor or a pair of image sensors that translate the received light into electronic image information and proximally forward as electronic signals.
• pairs of image sensors can be used in stereo video endoscopes to create a spatial impression, to enhance color rendering, or to adjust for various sensitivities or different analyzes that require different optical properties.
• the electrical leads with which the electrical signals are transmitted inside the endoscope shaft can be cables with a plurality of shielded and unshielded strands, flexible printed circuit boards or the like.
• both the optics and the image sensor are located in a hermetically sealed room. Therefore, there is a hermetically sealed via of these electrical leads.
• the hermetically sealed plated-through hole is made by means of metal pins or metallic contact pins cast in glass. The electrical cables are soldered directly to the metal pins.
• video endoscopes which are provided in the hermetic space, an optical transmitting unit for transmitting the image data received from the image sensor. It is an object of the present invention to provide a surgical instrument, such as video endoscopes, with a stable arrangement of an optical transmitting device for transmitting image data from the hermetically sealed housing, the effort and the installation should be as low as possible.
• a video endoscope with an elongate, preferably hermetically sealed, housing for receiving an image sensor unit, in particular a video camera, preferably arranged in the distal region of the housing, wherein an optical transmitter unit connected to the image sensor unit is arranged in the housing and is further developed thereby in that the optical transmitting unit is arranged on a through-contacting device at the proximal end of the housing, preferably in the end region on a proximal end face of the housing, wherein the through-contacting device penetrates a wall of the housing and the through-connection device is hermetically sealed in the wall of the housing.
• the invention is based on the idea of using the rigid in the wall of the hermetically sealed Videoendoskopgephases. inflexible circuit board to provide a holder for the optical transmitting unit, wherein by means of the housing wall passing through and arranged in the wall printed circuit board, a hermetic sealing of the housing is achieved while electrical connections between devices outside the housing formed with means inside the housing via corresponding tracks of the circuit board or provided.
• a further development of the video endoscope is characterized by the through-connection device is held in a plate provided on the proximal end of the housing, in particular a cover plate for the housing, on the proximal end face of the housing.
• the through-connection device for the optical transmitting unit is arranged in the wall of the housing such that an inner part of the through-connection device protrudes into the interior of the housing and a second, outer part of the through-connection device on the outside of the housing protrudes outside.
• the present in the housing and outside the housing interconnects of the circuit board are connected to corresponding lines.
• the feedthrough device is designed as a printed circuit board with electrical lines, wherein in particular the printed circuit board has a multilayer ceramic with electrically or electrically conductive lines, wherein the electrical or electrically conductive lines by means of the high-temperature multilayer ceramic method (HTCC method) are or are produced ,
• HTCC method high-temperature multilayer ceramic method
• one or more image data transmission lines connected to the image sensor unit be arranged in the housing, wherein the one or more image data transmission lines at the proximal end of the housing, preferably in the end region at a proximal end face of the housing, with a via device and / or. or the optical transmitting unit are connected.
• One or more image data transmission lines connected to the image sensor unit are preferably arranged in the housing designed as an endoscope shaft, wherein the one or more image data transmission lines for transmitting image data at the proximal end of the housing, preferably in the end region at a proximal end surface of the housing, are connected to the optical transmission unit.
• a neck is provided at the proximal end of the housing, wherein at one end of the neck, the optical transmitting unit is arranged and at the other end of the nozzle surrounded by a ferrule optical waveguide is arranged, so that the optical transmitting unit is disposed opposite to the end of the optical waveguide.
• a connecting piece on the proximal end face or front side of the housing forms a fiber optic data transmission from the hermetically sealed region of the housing or of the endoscope shaft, wherein the optical transmitter unit at the inner end of the nozzle, the image data are transmitted out of the hermetic housing, and the optical signals are received by the optical waveguide arranged at the other, outer end of the nozzle and are correspondingly transmitted to an image display unit or the like.
• an optical waveguide is understood as meaning an optical fiber, such as glass fiber, or a bundle of optical fibers, eg glass fiber bundles, wherein the optical waveguide is provided with a ferrule at one end, which is arranged on the neck of the housing of the video endoscope or can be arranged.
• the single fiber or the bundle of fibers is protected by a sheath, wherein in the region of the end face of the glass fiber or the glass fibers, the ferrule is attached end.
• the ferrule is glued or applied to the fibers or glass fibers in a fusion process.
• a high water-tightness or vapor-tightness is achieved using suitable adhesives or by the fusion of the ferrule with the glass fibers.
• the video endoscope is characterized in one embodiment in that between the ends of the nozzle, in particular between the optical transmitting unit in the interior of the housing and arranged at the nozzle end of the optical waveguide, a glass is arranged, wherein preferably the glass soldered into the nozzle is.
• a hermetic seal is achieved, wherein at the same time an optical data transmission between the transmitting unit and the optical waveguide is made possible.
• the optical transmitting unit is preferably soldered to the nozzle, whereby the optical transmitting unit is vapor-tightly connected to the nozzle.
• the ferrule for the optical waveguide is preferably soldered to the nozzle.
• the end face of the optical waveguide or the glass fibers is also closed vapor-tight.
• the ferrule is arranged in a socket, so that the ferrule of The socket is surrounded and accommodated therein, wherein the socket at the end of the nozzle relative to the optical transmitting unit can be arranged or arranged, in particular attachable or plugged, is.
• an embodiment of the video endoscope is characterized in that the nozzle in the or on the proximal end of the housing provided plate, in particular cover plate or sealing plate, is arranged on the proximal end face of the housing.
• the provided at the proximal end of the housing (end) plate is made in the invention of glass or metal.
• the through-connection device is arranged on the proximal end face of the housing, preferably next to the connection piece, wherein the through-connection device is connected via electrical conductors to the image sensor unit, in particular video camera, arranged at the distal end of the housing.
• HTCC high-temperature multilayer ceramic
• an assembly is also being made that includes electrical and optical via devices.
• Embodiments of the invention may be individual features or a Combine several features.
• Fig. 1 shows schematically a cross section through the proximal
• Fig. 2 shows schematically a cross section through the proximal
• Fig. 1 is shown schematically in cross section a proximal end portion of a schematically designated video endoscope 1.
• the video endoscope 1 has an elongated endoscope shaft 2 as a housing, at the distal end of a window is provided, wherein behind the window in the endoscope shaft a video camera is arranged as an optical image sensor unit.
• an image data line 3 is provided in the endoscope shaft 2 to transmit the image data of the video camera.
• a closure plate 4 for example made of glass, is arranged in order to close the proximal end face of the endoscope shaft 2.
• the End plate 4 is arranged as a rigid HTCC printed circuit board through-hole 5 arranged to provide via appropriate connections or electrical lines electrical power for the units or devices such as video camera inside the endoscope shaft 2.
• the through-contacting device 5 penetrates or penetrates the end plate 4, the through-connection device 5 being arranged hermetically tight in the end plate 4.
• end plate 4 made of glass is provided as a wall of the housing in the proximal end of a metal plate which is penetrated by the printed circuit board formed as für Arichans experienced 5 and hermetically sealed therein, in particular the electrical traces of the circuit board to the Made of metal end plate 4 are electrically isolated.
• end plate 4 is soldered to the example of metal endoscope shaft 2 at the edge, resulting in a hermetically sealed housing, which is not only liquid-tight, but also vapor-tight. Furthermore, thereby the optical and electronic components are also protected in a hot steam sterilization of the video endoscope.
• the plated-through device 5 is formed, for example, as a printed circuit board using the HTCC (High Temperature Cofired Ceramics) technology with a plurality of ceramic layers and is hermetically soldered in the end plate 4.
• the through-connection device 5 has inside the endoscope shaft 2 electrical or electronic components as well as a (not shown here) optocoupler for the transmitting unit 6.
• the Image data line 3 is connected by means of the through-connection device 5 with an electro-optical transmission unit 6 in order to emit optical signals by means of the electro-optical transmission unit 6 by conversion of the image data captured by the video camera.
• a sipe 7 which is provided with e.g. formed as a glass plate end plate 4 passes through.
• a glass body 8 is arranged, wherein in particular the glass body 8 is soldered in the interior of the nozzle 7. Furthermore, the nozzle 7 is also soldered to the end plate 4 on the outer circumference.
• the electro-optical transmission unit 6 is arranged in the interior of the endoscope shank 2 on the end of the neck 7 projecting into the endoscope shaft 2, wherein in particular the optical transmitting unit 6 is soldered at the end of the neck 7 and is connected to the neck 7.
• an optical waveguide 9 is arranged in the interior of the connecting piece 7 in order to receive the light signals emitted by the optical transmitting unit 6.
• the end of the optical waveguide 9 is surrounded by a ferrule 10, wherein the ferrule 10 is connected by means of a soldering 1 1 with the nozzle 7.
• the ferrule 10 is glued to the end of the optical waveguide 9 by a suitable choice of adhesives or vapor-tight or waterproof due to a fusion process with the glass fibers of the optical waveguide 9.
• the received signals are transmitted from the image data line 3 to an image display device.
• the optical waveguide 9 is further on that of the ferrule 10 opposite end surrounded by a corresponding protective cover 12.
• FIG. 2 schematically shows a further exemplary embodiment of the arrangement of an optical transmitting unit 6 in the proximal end region of the video endoscope 1.
• the ferrule 10 surrounded by a female housing 13, so that the female housing 13 is detachably attached to the outer end of the neck piece 7.
• a type of connector for the optical waveguide 9 is formed, so that the optical waveguide is detachably connected to the connecting piece 7.

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

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ID=48428424

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Citations (5)

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• 2012
  • 2012-05-18 DE DE102012208358A patent/DE102012208358A1/de not_active Withdrawn
• 2013
  • 2013-05-08 JP JP2015511945A patent/JP2015519937A/ja active Pending
  • 2013-05-08 WO PCT/EP2013/001368 patent/WO2013170943A1/de not_active Ceased
  • 2013-05-08 CN CN201380025801.7A patent/CN104509221A/zh active Pending
• 2014
  • 2014-11-11 US US14/538,148 patent/US20150065800A1/en not_active Abandoned

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