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
  • A61B1/00064—Constructional details of the endoscope body
  • A61B1/00071—Insertion part of the endoscope body
  • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
  • A61B1/00096—Optical elements
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
  • A61B1/00064—Constructional details of the endoscope body
  • A61B1/00071—Insertion part of the endoscope body
  • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
• • 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
  • A61B1/00128—Connectors, fasteners and adapters, e.g. on the endoscope handle mechanical, e.g. for tubes or pipes
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
  • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B25/00—Eyepieces; Magnifying glasses
  • G02B25/001—Eyepieces

Definitions

• the invention relates to an observation instrument having a distal end and a proximal end, wherein the proximal end of the observation instrument by a
• Viewing window is completed, which is mounted in a viewing window frame.
• Observation instruments are used in all areas of technology in which an observation of an object of interest with the naked eye is not possible or only to a limited extent. For this purpose, observation instruments to an optical system, which simplifies the observation or only possible.
• an object to be observed facing the end of the observation instrument is referred to as a distal end, a the
• the observer-facing end of the observation instrument is referred to as the proximal end.
• observation instruments including for example telescopes, periscopes, microscopes and endoscopes.
• observation instruments are often at least at the proximal end, which is handled by a user and, for example, guided close to the eye, closed by a viewing window, which is to prevent the ingress of dirt and moisture.
• the viewing window is usually mounted in a viewing window frame. Another window may be provided at the distal end of the viewing instrument. Both the viewing window and a window provided at the distal end of the viewing instrument can have optically active, for example, curved, surfaces.
• the attachment of the viewing window in the viewing window frame is complex, here are often screw in combination with adhesives used.
• an observation instrument having a distal end and a proximal end, wherein the proximal end of the
• Observation instrument is completed by a viewing window, which in a
• Viewing window frame is attached, which is further developed in that the viewing window and the viewing window frame are at least partially encapsulated with a fixing of injection-moldable material, which sealingly fixes the viewing window in the viewing window frame. Furthermore, a fastening element for an additional instrument is arranged at the proximal end of the observation instrument, and the fastening element is at least partially embodied in one piece with the fixing body
• the observation instrument is an endoscope having a shaft having a distal end and a proximal end, an objective disposed at the distal end of the shaft, one at the proximal end of the shaft
• the viewing window is an eyepiece, and wherein the viewing window frame a
• Eyepiece window frame is.
• Endoscopes are widely used in medicine and the arts to inspect hard to reach body cavities of a patient or areas of a machine and / or to make interventions in the corresponding body cavities or areas. While video-endoscopes with an integrated video camera are often used, endoscopes with an optical image conductor, which transmits an image picked up by a lens to an eyepiece on which it can be viewed with the naked eye or by means of an external camera, are widespread, especially in medicine. Such endoscopes, which are also referred to as optical endoscopes, can be made more slender and therefore more patient-friendly than
• Video endoscopes Depending on the design and application of the endoscopes, fiber image conductors or lens image conductors are used.
• medical endoscopes are subjected to extreme conditions, such as exposure to water vapor at high temperatures and pressures, in the required conditioning between two uses. Therefore, particularly high demands are placed on the sealing of the eyepiece window.
• this seal may occur despite everything, that in the preparation of an endoscope minimal amounts of steam diffuse through the seal.
• drying bodies of highly hygroscopic material are often installed in the eyepiece, which absorb the moisture. These dry bodies require additional space, at the same time, the hygroscopic material, such as calcium chloride, long-term corrosive effect.
• the attachment element may be an eyepiece funnel.
• Ocular funnels are originally provided on endoscopes to allow convenient placement of the eyepiece on the user's eye. Owing to the spread of video technology, ocular funnels in modern endoscopes are mainly used to provide a mounting option for video cameras. The Okulartrichter is usually screwed onto the eyepiece after attachment of the eyepiece. By an at least partially integral embodiment of the eyepiece funnel with the fixing body, the production of an endoscope is further simplified.
• the fastening element can be designed in several parts, wherein a first part of the fastening element is integral with the fixing body, and wherein at least one further part of the fastening element form-fitting, non-positively, and / or materially connected to the first part of Fastener is connected.
• Fastening element for example, a wear-prone part of
• Fastening element for example, a plug, screw, bayonet and / or
• At least one electrical component can be arranged in the fastening element.
• the at least one electrical component can be arranged between the first and a further part of the fastening element.
• the at least one electrical component can be arranged between the first and a further part of the fastening element.
• Fixing element to be fixed.
• the at least one electrical component can be connected to at least one electrical line which runs through the fixing body into the observation instrument. It is thus an electrical communication between the at least one electrical component and the interior of the observation instrument allows without the sealing of the
• the least one electrical line is preferably laid before the encapsulation of the viewing window and the viewing window frame and then sealed by the encapsulation.
• the at least one electrical component may be or comprise a coil.
• This coil may preferably be part of a wireless power transmission arrangement for supplying at least one electrical load in the observation instrument.
• a wireless energy transmission arrangement is known for example from the patent application DE102016108095 of the applicant.
• the at least one electrical consumer can comprise a light source and / or a heating device and / or an actuator and / or a video chip.
• FIG. 2 shows an eyepiece of an endoscope according to FIG. 1 according to the prior art
• FIG. 4 shows an eyepiece of an endoscope according to an embodiment of the invention
• FIG. 5 shows an eyepiece of an endoscope according to another embodiment of the invention
• Fig. 6 an eyepiece of an endoscope according to an additional embodiment of the invention.
• FIG. 1 shows an endoscope 1 with a shaft 2, which has a distal end 3 and a proximal end 4.
• a lens not shown
• the proximal end 4 of the shaft ends at a main body 5.
• An eyepiece 6 with an eyepiece funnel 7 adjoins the main body 5.
• An object to be observed is imaged by an objective, which is not shown at the distal end 3, onto an intermediate image, which is guided to the eyepiece 6 by means of an optical image conductor (also not shown).
• the image conductor may be, for example, an elay lens system or an ordered bundle of optical fibers. Such fiber bundles are mainly used in endoscopes with flexible shaft application.
• the Okulartrichter 7 serves to create the eye of the beholder or for mounting the camera.
• a Lichtleitstutzen 8 is further arranged, to which a light source can be connected directly or via a light guide cable.
• FIG. 2 shows the construction of a part of the eyepiece 6. It consists of an eyepiece lens system 10, which is fastened in an eyepiece mount 11. The eyepiece 11 is in turn surrounded by an eyepiece 12, in which an eyepiece 13 is sealingly inserted.
• the eyepiece window 13 rests on a circumferential projection 14 of the eyepiece window frame 12 and is held by a union nut 15. Eyepiece window 13, eyepiece window frame 12 and union nut 14 are circumferentially glued together to prevent ingress of
• a dry ring 16 of highly hygroscopic material e.g. Calcium chloride (CaCl), arranged.
• a thread 17 is further provided, on which the Okulartrichter 7 can be screwed.
• FIG. 3 shows the structure of the eyepiece of an endoscope, wherein the eyepiece lens system and the eyepiece mount are not shown for the sake of clarity.
• the eyepiece again comprises an eyepiece window frame 22 into which an eyepiece window 23 is inserted.
• the eyepiece 23 is located on an inner projection 24 of
• the eyepiece window 23 and the eyepiece window frame 22 are partially encapsulated with a fixing body 30 made of injection-moldable material.
• a fixing body 30 made of injection-moldable material.
• a material for example, polyolefins, polystyrene or polyamide in question.
• the eyepiece window 23 is completely sealed off from the eyepiece window mount 22, so that no moisture can penetrate into the eyepiece. On a dry ring in the eyepiece can therefore be omitted.
• a circumferential groove 31 is provided, which is filled by the fixing body 30 and thus additionally in a form-fitting manner on the
• Figure 4 shows the structure of an eyepiece of another endoscope according to an embodiment of the invention.
• the eyepiece lens system and the eyepiece are omitted again.
• the eyepiece in turn has an eyepiece window frame 42 and an eyepiece window 43, which are partially encapsulated with a fixing body 50.
• the fixing body 50 is designed as Okulartrichter. As a result, the production of the corresponding endoscope is further simplified.
• FIG. 5 shows an eyepiece of an endoscope according to a further embodiment of the invention.
• the eyepiece largely corresponds to the eyepiece shown in FIG. 4 and comprises an eyepiece window mount 62 and an eyepiece window 63, which is replaced by a eyepiece
• Fixier Sciences 70 are sealingly connected.
• the fixing body 70 is again designed as eyepiece funnel.
• an electrical component 75 is arranged in the fixing body 70, which in the present example is a coupling coil arranged concentrically with respect to the eyepiece.
• this coil for example, electrical energy can be transmitted wirelessly to the endoscope from a camera head placed on the eyepiece funnel, as can be seen in the
• Patent application DE102016108095 the applicant is described.
• the electrical energy is transmitted by means of an electrical line 76 into the interior of the eyepiece, to the line 76 is guided through the Okularrome charged 62.
• an electrical load 77 is arranged, which is supplied via the electrical line 76.
• the electrical load 77 may be a light source, e.g. an LED, and / or a heater include.
• the passage point of the electrical line 76 through the eyepiece window socket 62 is located in the region of the fixing body 70 and is thus completely sealed.
• the electrical component 75 is encapsulated with the fixing body 70; for this purpose, the electrical component must be positioned in the injection mold.
• a support body not shown, can be used, which fixes the electrical component 75 on the eyepiece window frame 62 and is also completely encapsulated with.
• FIG. 6 shows an alternative embodiment of an eyepiece.
• the eyepiece in turn comprises an eyepiece window frame 82 and an eyepiece window 83 which are sealingly connected by a fixing body 90.
• the fixing body 90 forms only a part of an eyepiece funnel, which is completed by a further part 94.
• an electrical component 95 is arranged, which is connected via an electrical line 96 with an electrical load 97.
• the fixing body and the part 94 can be connected by a screw, plug, bayonet and / or adhesive connection.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=61022293

Family Applications (1)

Country Status (6)

Families Citing this family (2)

Citations (2)

Family Cites Families (20)

• 2017
  • 2017-01-28 DE DE102017101681.3A patent/DE102017101681B4/de not_active Expired - Fee Related
  • 2017-12-27 JP JP2019533228A patent/JP6796207B2/ja not_active Expired - Fee Related
  • 2017-12-27 WO PCT/EP2017/084613 patent/WO2018137875A1/de unknown
  • 2017-12-27 EP EP17832968.6A patent/EP3544481A1/de not_active Withdrawn
  • 2017-12-27 CN CN201780067910.3A patent/CN109906049B/zh not_active Expired - Fee Related
  • 2017-12-27 US US16/469,369 patent/US11278185B2/en active Active

Patent Citations (2)

Non-Patent Citations (1)

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