WO2017174373A1 - Video endoscope with shielded imaging unit and method for producing same - Google Patents

Video endoscope with shielded imaging unit and method for producing same Download PDF

Info

Publication number
WO2017174373A1
WO2017174373A1 PCT/EP2017/057053 EP2017057053W WO2017174373A1 WO 2017174373 A1 WO2017174373 A1 WO 2017174373A1 EP 2017057053 W EP2017057053 W EP 2017057053W WO 2017174373 A1 WO2017174373 A1 WO 2017174373A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
layer
emc
imaging unit
tube
outer tube
Prior art date
Application number
PCT/EP2017/057053
Other languages
German (de)
French (fr)
Inventor
Martin Wieters
Original Assignee
Olympus Winter & Ibe Gmbh
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

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/00064Constructional details of the endoscope body
    • A61B1/0011Manufacturing of endoscope parts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/00064Constructional details of the endoscope body
    • A61B1/00071Insertion part of the endoscope body
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B23/00Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476Non-optical details, e.g. housings, mountings, supports

Abstract

The invention relates to a video endoscope (2) and to a method for producing same. The video endoscope (2) comprises an envelope tube (14) in which a fibre tube (18) extends, in which in turn an imaging unit (20) is arranged. The imaging unit (20) is enclosed on its outside by an outer tube (28). A grounded EMV layer (30) is present between the outer tube (28) of the imaging unit (20) and the fibre tube (18) and shields the imaging unit (20) electromagnetically. The outer tube (28) of the imaging unit is potential-free.

Description

the same video endoscope with shielded imaging unit and methods for preparing

description

The invention relates to a video endoscope with a shank, comprising a cladding tube and extending in the cladding tube fiber tube, wherein an imaging unit is disposed in the fiber tube, which is surrounded on its outside by an outer tube. The invention further relates deoendoskops a method for manufacturing such a Vi-.

Video endoscopes are well known, especially in the field of medical technology. The shank of a video endoscope comprises a plurality of nested tubes. Tools and outlets of working channels and a viewing window for a look are often available at a distal end of the shaft. At the proximal end of the endoscope shaft is a handle for operating the endoscope. The outside of the shaft often constitutes an outer casing tube, into which a fiber tube is inserted. Within the fiber tube, an imaging unit is disposed, wherein it is an existing of at least one lens and an image sensor video unit, commonly referred to as R-Unit.

The imaging unit is surrounded on its outside by an outer tube and is often hermetically sealed. The outer tube serves as an electromagnetic shield to be also referred to as EMC shielding. To this end, the outer tube of the imaging unit is contacted to ground. Compared with the fiber tube, the outer tube of the imaging unit must be electrically isolated. For this purpose, adhesive dots are provided or fully extending along the periphery of splices, also be used one or more shrink sleeves. However, this heat shrink tubing must be cut to match the outer contour of the imaging unit and are shrunk onto the imaging unit by means of heat. For video endoscopes variable Bl ickrichtung the external geometry of the imaging unit is relatively complex. Also, the cozy parts of the optical variable Bl make jointed ickrichtung the structure complex. The insulation means of one or several heat-shrinkable tubing is for practical reasons, often not possible or not profitable. In addition, the necessary for shrinking heat can have negative effects on the imaging unit. So it is, for example, I poss to come loose glue joints inside the imaging unit or weakened.

Further, should be present the lowest possible electrical capacitance between the fiber tube and the imaging unit. Too high a capacity between these two components may produce too high a Patient. In order to keep the capacitance between the fiber tube and the imaging unit as low as possible, the imaging device is often manufactured in a so-called "bone structure". Here, the diameter of the imaging unit is tapered in the middle. However, this is only possible because in this region no optics or other mechanical parts necessary are arranged, but I ledigl cable or a flex board for electrical signal transmission in a pipe run. the bone structure, however, is expensive to manufacture and limited the assembly procedures in manufacturing the imaging unit.

It is an object of the invention, a video endoscope, and a method to provide for the manufacture of a video endoscope, wherein a reliable electromagnetic shielding of the imaging unit is to be present at the same time the design effort should be kept as low as possible.

The object is achieved by a video endoscope with a shank comprising a cladding tube and extending in the cladding tube fiber tube, wherein an imaging unit is disposed in the fiber tube, which is surrounded ßenrohr on its outer side by an Au, said video endoscope is characterized trained that a grounded EMC layer is between the outer tube of the imaging unit and the fiber tube provided which is adapted to shield the imaging unit electromagnetically, wherein the outer pipe is floating.

The EMC layer provides an electromagnetic shielding of the imaging unit with respect to an external space. As outer space, a volume to be viewed, which is not covered by the imaging unit itself. The EMC layer is preferably a mechanically flexible position. Further, provided in particular that the EMI layer is a printed layer. Advantageously electromagnetically shielded by the EMC position the imaging unit with respect to the exterior space. With regard to the production of the video endoscope, it has been found to be technically easier and more efficient, an additional component, namely the EMC able to be arranged between the outer tube of the imaging unit and the fiber tube, as for example by adhesive dots or a peripheral adhesive track, the required electrical insulation established between the units. Further, it is advantageous that the geometry of the imaging device can be made much easier and more particularly to a complex structure, such as a bone structure, will be omitted. Such geometries are not only easier to manufacture, but are also advantageous in terms of the assembly of the endoscope. Thus, the imaging unit can for example be mounted from both sides in the fiber tube. The imaging unit that is does not include sections with differnet I large diameters, which in conventional units complicate such a flexible assembly or even prevent. the outer tube of the imaging unit is also floating advantageous.

According to one embodiment the EMI layer is a discontinuous layer.

EMC is able in particular job or interrupted in sections. It has in other words, apertures or holes, which evenly distributed, that is, in a regular arrangement, or irregular, so they can be arranged randomly or pseudo-randomly or randomly. It is in the interrupted position EMC for example, a grid. Is provided as an EMC layer a film is, for example, be a Lochfol ie. Likewise, it is especially provided that the EMC layer is printed on the outer tube of the imaging unit. These printed sheet or layer is interrupted and, for example, has a perforated or lattice structure.

Due to the interruption of the EMC position the contact area between the EMC location and the outer tube of the imaging unit on the one hand and EMC layer and the fiber tube on the other hand reduced. This reduction in area results in a reduction in the capacity between the outer tube of the imaging unit and the fiber tube. The insulation between these two components is to be performed for the sake of a small installation space as thin as possible. However, the capacity between the components increases exponentially with the decrease in the distance. By interrupting the EMC position effective action is taken to counteract this effect. Namely, on the one hand the use of a very thin coating layer or film possible, at the same time the capacity is reduced or at least does not increase. Thus, space can be saved, while improving the electrical properties, but at least not deteriorated. For effective electromagnetic Absch irmung it is not necessary to perform the screening layer over the entire surface, continuously or continuously. The shield may have openings that are no greater than a quarter of the wavelength to be shielded. in other words, the grid pattern of small or openings, for example, their diameter to less than this critical size.

Is a relevant for the electromagnetic shielding frequency of 1 GHz 0 is accepted, results in a maximum hole size of 7.5 mm. the wavelength and thus also the allowable size of the openings for lower frequencies increase.

For this reason, that the EMC layer has interruptions whose size does not exceed one quarter of a wavelength to be shielded, in particular a size of 7.5 mm is seen forth according to another embodiment does not exceed.

Moreover, the EMC-position or the EMC film is by their discontinuous design, for example, if this is executed as a grid, flexible, and can thus be mounted more easily and effectively.

According to an advantageous embodiment, the video endoscope is characterized continuously formed that the EMC-position of at least one electrically insulating layer and an electrically conductive layer is made of assembled, in particular, the outer tube of electrically insulating material, further in particular from plastic, is manufactured.

The electrically conductive layer is in particular an electrically conductive surface or conductive layer. is being coated, for example, Kapton, so that at its top or bottom of an electrically insulating layer present. The EMC location is in particular a film. Accordingly, it is in the above-mentioned layers to individual layers of the film. In other words, is therefore used as EMC situation, particularly a two-layer film.

According to a further embodiment of the EMC-position or the EMC film comprises a heating layer. So it is possible to heat the imaging unit selectively and prevent, for example, a fogging of the viewing window or remove existing fittings. The EMC layer is further adhered especially to the outer tube of the imaging unit. To this end, the position or the film is, for example, wound around the outer tube of the bildge- inputting unit and then glued or printed.

In particular, it is further provided that the EMC location is contacted at a proximal end to a grounded component, in particular a component of a handle of the video endoscope. This electrical contact is in particular circumferentially or approximately circumferentially, i .e. along the circumference or at least approximately along the full scope of the EMC able present. For example, this electrical contact is established by soldering.

Further, according to a further embodiment that the EMC location in the distal direction along the shaft to at least extends to a longitudinal position of an image sensor of the imaging unit. In other words, therefore, the EMC position from the grip of the video endoscope extends at least to the longitudinal position of the image sensor such as a CCD or CMOS sensor, the imaging unit. This is the most distally located shielded electrical component. Preferably, protrudes to provide a reliable electromagnetic shielding available, the EMC layer in the longitudinal direction of the shaft distally about the image sensor in the direction of addition.

The EMC is capable in particular wound on the outer tube of the imaging unit or set. Thus, it follows that the outer edge of the EMC position abut each other and either slightly overlap or a slight gap or a small gap remains when the size or dimension of the EMC location is not absolutely accurate. An overlap of the EMC layer may be provided to ensure a highly reliable shielding. However, it is also possible to provide a gap which does not exceed the aforementioned maximum extent. To ensure that this gap does not exceed the maximum dimension in a direction parallel to the edge of the EMC position this edge is preferably serrated or corrugated. Thus, the opposite edges have a corresponding mating shaft or spike-like shape.

Further, the outer tube of the imaging unit is proximal to, for example, on the handle attached.

The object is further achieved by a method for producing a video endoscope according to one or more of the above aspects, this method being characterized trained that

the EMC layer is disposed on an outer side of the outer tube of the imaging unit so that the imaging unit is electromagnetically shielded and

provided with the EMC location imaging unit is placed in the fiber tube.

According to one embodiment the EMI layer is contacted at a proximal end to a grounded component, in particular a component of a handle of the video endoscope.

Further, it is especially provided that the outer tube proximally, for example, the handle is attached.

The outer tube is mounted so that it is floating.

to be the method the same or similar advantages apply as in Hinbl ick mentioned on the video endoscope itself already, so that no repetitions. Further features of the invention will appear from the description of embodiments of the invention together with the claims and the accompanying drawings I ersichtl. Embodiments of the invention can satisfy individual characteristics or a combination of several characteristics.

The invention is described below, without limiting the general inventive idea with reference to embodiments with reference to the drawings, wherein with respect to all details of the invention not explained in detail in the text reference is expressly made to the drawings. Show it:

FIG. 1, a video endoscope in simplified perspective view,

FIG. 2 is a simplified schematic view of a longitudinal section through the shaft of the video endoscope in its distal end region,

FIG. 3 is a schematically simplified perspective view of a longitudinally sectioned shank of the video-endoscope in its handle region,

FIG. 4 is a schematically simplified view of a cross section through the shank of a video endoscope, and

FIG. 5 is a schematically simplified plan view of a detail of a seam or joint of the EMC layer.

In the drawings, the same or similar elements and / or parts having the same reference numerals are provided, so that apart from a further presentation respectively.

FIG. 1 shows a video endoscope 2, which comprises a shank 4 and a handle. 6 The shaft 4 is connected at its proximal end to the handle 8. 6 At the distal end 10 of the shaft 4, a window 12 is provided through which a present in the interior of the shaft 4 imaging unit (not visible), a front of the distal end 1 0 lying examination or surgical area is observed. The imaging device is a video unit which is also commonly referred to as R-Unit. The shaft 4 of the video endoscope 2 includes a plurality of nested tubes. The outside of the shaft 4 is a cladding tube 14, which comes directly in use of the video endoscope 2 with the patient in contact.

FIG. 2 shows a sectional, simplified and schematic view of a longitudinal section through the shaft 4 of the video endoscope 2 in its distal end region, ie in the vicinity of the distal end 1 0. The shaft 4 has on its outer side the casing tube 14. The cladding tube 14 surrounds a fiber bundle 1 to 6, which is guided to illuminate the surgical field observation or from a non-illustrated lighting unit to the distal end 1 0 of the video endoscope. 2 Within the casing tube 14 there is also a fiber tube 1 8, in which an imaging unit 20 is arranged. The exemplified imaging unit 20 comprises an objective 22 having a plurality of lenses and an image sensor 24 such as a CCD or CMOS chip, to which a contact unit 26 of the imaging unit 20 is connected. The imaging unit 20 is surrounded on its outside by an outer tube 28th

Between the outer tube 28 of the imaging unit 20 and the fiber tube 8 1 EMC-layer 30 is present. The EMC layer 30 is grounded, so electrically connected to ground. The EMC layer 30 is further adapted to shield the imaging unit 20 electromagnetically towards an exterior space. The EMC situation is particularly a discontinuous layer. The outer tube 28 of the imaging unit 20 is in particular made of plastic. Selbstverständl I can also be another electrically insulating material or even a non-electrically insulated ierendes material such as a metal, may be provided for the outer tube 28th The outer tube 28 has no potential, it is, if made of an electrically conductive material proximal grounded. It is made of an electrically insulated ierenden material such as a plastic manufactured, no electrical insulation is required. In this case, the outer tube 28 is not grounded. In other words, the outer tube 28 is floating. It is also proximally attached.

The EMC layer 30 is preferably composed of one or two layers. It comprises on its flat outer sides, ie on its flat side facing the outer tube 28 of the imaging unit 20, or on its outer side, which faces the fiber tube 18, an electrically insulated ierende layer. Is the outer tube 28 made of an electrically insulated material ierenden, no electrically insulating layer is necessary. An electrically conductive layer is an outer layer of electrically insulated ierenden Sch, in particular completely covered. The electrically conductive layer is in particular an electrically conductive surface layer. In the EMC layer 30 is preferably a film. in other words, a one- or two-layer film as an EMC layer 30 is provided. It is, for example, a surface coated with conductive Kapton film, for example a thin Metallfol ie. Likewise, it is provided that the EMC layer is printed on the outer tube 28 of the image forming unit 20 30th The outer tube 28 of the imaging unit 20 is in particular a plastic pipe. The printed EMC layer 30 is also interrupted, for example, has a perforated or lattice structure.

It is further provided according to an embodiment that the EMC-base 30 includes a heating layer. Thus, it is poss I to heat the imaging unit 20 and a targeted prevent fogging of the distal end of the video-endoscope 1 0 2 1 2 existing viewing window (see. Fig. 1). The EMC layer 30 is further in particular glued to the outer tube 28 of the imaging unit 20th

FIG. 3 shows in a schematically simplified perspective view the longitudinally sectioned shaft 4 of the video-endoscope 2 in the region of the handle 6. The figure shows a handle body 32 inside the in Fig. Handle 6 of the video endoscope 2 shown is 1. In the handle body 32, the outer tube 28 of the imaging unit 20 is received, by the EMC layer 30, the outer tube 28 if necessary relative to the handle body 32 are electrically insulated ieren can. In Fig. 3 ßerdem an actuator tube 34 is shown au which the outer tube 28 centrally passes through and up to the imaging unit 20 is sufficient. The actuator tube 34 is provided to rotate the image sensor 24 or to rotate, and so a change in the angle of view of the video endoscope 2 to track.

Where in Fig. the proximal end 8 of the shaft 4 is shown 3 d ie EMC layer 30 with a grounded component, electrically contacted in the illustrated embodiment with the handle body 32nd To this end 38 of the handle body 32 and the EMC location is, for example, a solder connection 30 provided for hen in the throat 36 between one end face. This solder connection preferably extends along the full scope of the EMC layer 30. In order to provide a reliable electrical contact to the conductive layer of the EMI layer 30, for example locally in the area of ​​the throat 36, if present, the outer insulating layer of the EMC Location located at 30 or at least in places interrupted.

The EMC layer 30 extends from the handle 6 and from the handle body 32 of the video-endoscope 2 in the distal direction D along the shaft 4 at least to a longitudinal position of the image sensor 24 of the imaging unit 20. This means in other words that, as in Fig. 2, the EMC-base 30 until at least extending in the distal direction D to the image sensor 24 of the imaging unit 20, preferably as shown, beyond.

According to one embodiment, the EMC layer 30 is a discontinuous layer. It's job or interrupted in sections, that has openings or holes. The openings or holes for example, are uniformly distributed, therefore, regularly or irregularly arranged, for example, randomly, pseudo-randomly or randomly. For example, the EMI layer 30 is a mesh, grid-shaped or if the EMC layer 30 is realized as a film, a mesh or perforated foil. By the interruptions the EMC layer 30 is flexible so that it can be easily processed, can for example be easily placed around the outer tube 28 of the imaging unit 20 and fixed there.

Due to the interruption of the EMC position 30 also the electrical capacitance between the outer tube 28 of the imaging unit 20 and the fiber tube 18 is reduced. The capacitance between these two components increases with decreasing distance to between the components, but it coincides with the area occupied between the components of the EMC location 30th In order to keep the necessary space to a minimum, the EMC situation should be 30 as thin as possible. With decreasing thickness or material thickness of the EMC layer 30, however, th e electrical capacitance between the outer tube 28 and the fiber tube 1 rises 8. By interrupting the EMC layer 30 this effect is counteracted. Thus, space can be saved at the same time the capacitance between the outer tube 28 and the fiber pipe 1 8 is reduced. A low capacitance between the two components is important in order to counteract too high a Patient.

Present in the EMC layer 30 openings or a grid pattern can be selected such that the desired cutoff frequency is still shielded reliable. For example, if a relevant for the electromagnetic shielding frequency of 1 GHz 0 accepted, the maximum hole size may be 7.5 mm. It can be provided 30 openings or interruptions in the EMC situation that are no larger than a quarter of the shielded cutoff wavelength.

Further, it is possible to completely around 30 does not perform the EMC location along the circumference around the fiber tube 28th This shows FIG. 4 in a schematically simplified view of a cross-section through the shaft 4 of the video endoscope 2. There are ledigl I represented the outer tube 28 of the imaging unit 20 and the EMC location 30th The EMC layer 30 is dimensioned so that their abutting edges maintain a distance d. This distance d is smaller than the aforementioned critical size for the interruptions of the EMC layer 30. For example, d is less than 7.5 mm.

Thus, this gap t he effectiveness of the EMI shielding layer 30 as elec- romagnetische the question. Thus also in the longitudinal direction of the shaft 4 d ie dimension of this gap is not greater than the intended critical size, the outer edges of EMC is layer 30 which face each other in the joint area, for example jagged or wavy run. This shows FIG. 5 in a schematically simplified plan view of a seam or joint of the EMC location 30th

The above applies to all versions of the EMC layer 30 so you meet both the case that the EMC layer 30 implemented as a film, and the case that the EMC layer 30 designed as a printed layer.

In a method for producing a video endoscope 2 according to one or more of the aforementioned embodiments, the EMC layer 30 is placed on the outside of the outer tube 28 of the imaging unit 20th It is for example glued there. Conn uent provided with the EMC layer 30 imaging unit is placed in the fiber tube 1 8 twentieth The EMC layer 30 is also contacted at a proximal end to a grounded component, such as a component of the handle 6 of the video endoscope 2, so that the imaging unit 20 is electromagnetically shielded.

Also to be taken from the drawings alone, and individual features which are disclosed in combination with other features, alone and in combination as erfindungswesentl I considered all the mentioned features. Embodiments of the invention can be met by individual characteristics or a combination of several characteristics. In the context of the invention, features which are marked with "especially" or "preferably", to be understood as optional features are. LIST OF REFERENCE NUMBERS

2 video endoscope

4 shaft

6 Handle

8 proximal end

10 distal end

1 2 viewing window

14 cladding tube

16 fiber bundles

1 8 fiber tube

20 imaging unit

22 lens

24 Image Sensor

26 connection unit

28 outer tube

30 EMC location

32 Grip

34 operating tube

36 throat

38 end face spacing d

D distal direction

Claims

Video endoscope with shielded imaging unit and method for manufacturing the same claims
1 . Video endoscope (2) having a shank (4) comprising a cladding tube (14) and into the cladding tube (14) extending fiber pipe (1 8), wherein an imaging unit (29) is arranged in the fiber tube (18) having on its outside of an outer tube (28) is surrounded, characterized in that between the outer tube (28) of the imaging unit (20) and the fiber tube (1 8) a grounded EMC layer (30) is provided which is adapted to the shield imaging unit (20) electromagnetically, wherein the outer tube (28) is floating.
2. Video endoscope (2) according to claim 1, characterized in that the EMC-layer (30) is a discontinuous layer.
3. Video endoscope (2) according to claim 1 or 2, characterized in that the EMC-layer (30) of at least one electrically insulated ierenden layer and an electrically conductive layer is joined, in particular the outer tube (28) made of an electrically insulating material is also, in particular, made of plastic.
Video endoscope (2) according to one of claims 1 to 3, characterized in that the EMC-layer (30) at a proximal end is in contact with a grounded component, in particular a component of a handle (6), the video-endoscope (2).
Video endoscope (2) according to one of claims 1 to 4, characterized in that the EMC-layer (30) in d istaler direction (D) along the shaft (4) to at least a longitudinal position of an image sensor (24) of the imaging unit (20).
Video endoscope (2) according to one of claims 1 to 5, characterized in that the EMC-layer (30) has interruptions whose size does not exceed one quarter of a wavelength to be shielded, and in particular does not exceed a size of 7.5 mm.
A method of manufacturing a video endoscope (2) according to one of claims 1 to 6, characterized in that on an outer side of the outer tube (28) of the imaging unit (20) the EMC layer (30) is arranged so that the imaging device ( 20) is electromagnetically shielded and
provided with the EMC layer (30) image-forming unit (20) in the fiber tube (18) is arranged. The method of claim 7, characterized in that the EMC-layer (30) at a proximal end is contacted with an earthed component, in particular a component of a handle (6), the video-endoscope (2).
A method according to claim 7 or 8, characterized in that the outer tube (28) is attached proximally.
PCT/EP2017/057053 2016-04-05 2017-03-24 Video endoscope with shielded imaging unit and method for producing same WO2017174373A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE201610205632 DE102016205632A1 (en) 2016-04-05 2016-04-05 the same video endoscope with shielded imaging unit and methods for preparing
DE102016205632.8 2016-04-05

Publications (1)

Publication Number Publication Date
WO2017174373A1 true true WO2017174373A1 (en) 2017-10-12

Family

ID=58413084

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/057053 WO2017174373A1 (en) 2016-04-05 2017-03-24 Video endoscope with shielded imaging unit and method for producing same

Country Status (2)

Country Link
DE (1) DE102016205632A1 (en)
WO (1) WO2017174373A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879992A (en) * 1987-04-27 1989-11-14 Olympus Optical Co., Ltd. Rigid electronic endoscope
US5873816A (en) * 1994-11-02 1999-02-23 Olympus Optical Co., Ltd. Electronic endoscope having an insertional portion a part of which is a conductive armor
US5941817A (en) * 1996-11-14 1999-08-24 Vista Medical Technologies, Inc. Endoscope wherein electrical components are electrically isolated from patient-engaging components
JP2997797B2 (en) * 1995-08-21 2000-01-11 オリンパス光学工業株式会社 Electronic endoscope apparatus
US20050038320A1 (en) * 2003-08-15 2005-02-17 Hartwick Darrell J. Disposable endoscope
DE202006001255U1 (en) * 2005-02-25 2006-04-06 Olympus Winter & Ibe Gmbh Endoscope in particular with electrically operated components, comprising inner shaft at maximal distance to outer shaft

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014117520A (en) * 2012-12-18 2014-06-30 Olympus Medical Systems Corp Electronic endoscope
CN104812290B (en) * 2013-04-12 2017-05-24 奥林巴斯株式会社 Electronic endoscope

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879992A (en) * 1987-04-27 1989-11-14 Olympus Optical Co., Ltd. Rigid electronic endoscope
US5873816A (en) * 1994-11-02 1999-02-23 Olympus Optical Co., Ltd. Electronic endoscope having an insertional portion a part of which is a conductive armor
JP2997797B2 (en) * 1995-08-21 2000-01-11 オリンパス光学工業株式会社 Electronic endoscope apparatus
US5941817A (en) * 1996-11-14 1999-08-24 Vista Medical Technologies, Inc. Endoscope wherein electrical components are electrically isolated from patient-engaging components
US20050038320A1 (en) * 2003-08-15 2005-02-17 Hartwick Darrell J. Disposable endoscope
DE202006001255U1 (en) * 2005-02-25 2006-04-06 Olympus Winter & Ibe Gmbh Endoscope in particular with electrically operated components, comprising inner shaft at maximal distance to outer shaft

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date Type
DE102016205632A1 (en) 2017-10-05 application

Similar Documents

Publication Publication Date Title
US5873816A (en) Electronic endoscope having an insertional portion a part of which is a conductive armor
US4677471A (en) Endoscope
US4686964A (en) Endoscope pickup means
US20110245600A1 (en) Solid-state image pickup device and endoscopic device
US20080039689A1 (en) Endoscope, endoscope apparatus, and method of connecting external equipment to endoscope
US20090163769A1 (en) Endoscope including a multifunction conductor
US20060058676A1 (en) Ultrasonic probe in body cavity
JP2001104311A (en) Ultrasonic endoscope diagnostic device
JP2004329857A (en) Flexible tube for endoscope and its manufacturing method
JPH07111969A (en) Detector for state of insertion of endoscope
JP2004147777A (en) Endoscope
JP2004205764A (en) Laser guide
US20140012130A1 (en) Flexible Circuit Sheet
US20030021557A1 (en) Cable having signal conductors surrounding optically transmissive core remote imaging system
JP2009279148A (en) Electronic endoscope apparatus
US20050143659A1 (en) Ultrasonic endoscope and ultrasonic signal cable connector device
US7530946B2 (en) Compact endoscope
JP2001037713A (en) Electronic endoscope
JP2008227733A (en) Imaging apparatus
JP2001128930A (en) Endoscope
JP2005174598A (en) High-frequency coaxial cable
WO2012124526A1 (en) Electronic endoscope and endoscope system
JPH0943520A (en) Electronic endoscope
JPH08152564A (en) Endoscope
WO2014208334A1 (en) Spiral cap, cap unit, spiral unit and guide device