EP0920276B1
Expired / Lapsed
EP
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Rigid endoscope with lighting
Assignee: MGB Endoskopische Geraete GmbH Berlin
•
Filing: 1997-08-12
•
Granted: 2003-08-20
•
Expires: 2017-08-12
Abstract
No abstract record available.
Inventors
- 👤 Gerhard Fritz Buess
- 👤 Ernst Flemming
- 👤 Wolfgang Jürgen KUNERT
- 👤 Marc Oliver Schurr
- 👤 Edward Naujoks
- 👤 Johannes Tschepe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 01:24
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/12; A61B1/127; A61B1/00064; A61B1/00071; A61B1/0008; A61B1/00091; A61B1/00163; A61B1/00165; A61B1/00174; A61B1/00179; A61B1/06; A61B1/0605; A61B1/0625; A61B1/07
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
180 words
Rigid endoscope consisting of a jacket tube (19) having
an optical system (1) and a first glass fibre bundle (2, 2'),
radiating parallel to the image axis (4) of the optical system
(1), and a second optical illumination system, the first glass
fibre bundle (2, 2") and the second optical illumination
system being arranged in such a way that they illuminate a
field of vision captured by the optical system (1) and the
light exit direction (3.1) at the light exit (3.2, 3.2',
3.2") of the second optical illumination system being offset
laterally relative to the viewing direction in accordance with
the image axis (4) on the distal end (1.2) of the optical
system (1) by an amount such that because of the resultant
parallax and the shadow formation and unequal light
distribution thus attained, the plasticity of the image
reproduction for three-dimensional objects (8) is increased, characterised in that the second optical illumination system
is set back by a distance (d) in the range of 5 to 50 mm from
the distal end (1.2) of the optical system (1).
Claim 2
Dependent Claim
21 words
Endoscope according to claim 1, characterised in that the
second optical illumination system is a glass fibre bundle (3,
3', 3").
Claim 3
Dependent Claim
36 words
Endoscope according to claim 2, characterised in that the
glass fibres of the first and/or second glass fibre bundle
(2, 2', 3, 3', 3") are distributed over an angular region
coaxially about the optical system (1).
Claim 4
Dependent Claim
24 words
Endoscope according to claim 3, characterised in that the
first and/or second glass fibre bundle (2, 2', 3, 3', 3")
has/have a crescent-shaped cross-section.
Claim 5
Dependent Claim
46 words
Endoscope according to claim 2, characterised in that the
light exit direction (3.1) of the second glass fibre bundle
(3, 3', 3") and the viewing direction of the optical system
(1) is oriented at an inclination to the longitudinal axis
(1.5) of the jacket tube (19).
Claim 6
Dependent Claim
39 words
Endoscope according to claim 5, characterised in that the
inclination of the light exit direction (3.1) of the second
glass fibre bundle (3, 3', 3") and the viewing direction of
the optical system (1) are in the same direction.
Claim 7
Dependent Claim
43 words
Endoscope according to claim 5 or 6, characterised in
that the light exit direction (3.1) of the second glass fibre
bundle (3, 3', 3") forms an angle α (5) of greater than zero
with the viewing direction (4) of the optical system (1).
Claim 8
Dependent Claim
23 words
Endoscope according to claim 2, characterised in that the
second glass fibre bundle (3, 3', 3") is integrated with the
jacket tube (19).
Claim 9
Dependent Claim
54 words
Endoscope according to claim 2, characterised in that both the light exits (2.2, 3.2, 3.2', 3.2,") of the first and
second glass fibre bundles (2, 2', 3, 3', 3") and the portion
(1.1) of the optical system (1) toward the object are arranged
in the region of the distal end (1.2) of the endoscope.
Claim 10
Dependent Claim
63 words
Endoscope according to claim 2, characterised in that the
glass fibres at the light exit (3.2, 3.2', 3.2") of the second
glass fibre bundle (3, 3', 3") have an end face that is ground
plane and is oriented perpendicular to their longitudinal
direction, or that they are ground so as to be inclined by an
angle β (12) to such an end face.
Claim 11
Dependent Claim
44 words
Endoscope according to claim 2, characterised in that the
light exit (3.2, 3.2', 3.2") of the second, in particular
plane-ground, glass fibre bundle (3, 3', 3") is arranged
longitudinally displaceably with respect to the jacket tube
(19), in order to influence the shadow effect.
Claim 12
Dependent Claim
35 words
Endoscope according to claim 2, characterised in that the
proximal ends of the first and second glass fibre bundle (2,
2', 3, 3', 3") are joined together in a common optical fibre
cable connection (13).
Claim 13
Dependent Claim
70 words
Endoscope according to claim 12, characterised in that the
common optical fibre cable connection (13) includes a device
(13.1), in particular an aperture, for adjusting the quantity
of light input into the proximal ends of the first and second
glass fibre bundles (2, 2', 3, 3', 3") and/or adjusting the
distribution of the quantity of light input to the first and
second glass fibre bundles (2, 2', 3, 3', 3").
Claim 14
Dependent Claim
45 words
Endoscope according to claim 2, in particular according to
claim 12, characterised in that the number of individual glass
fibres in the first and second glass fibre bundles (2, 2', 3,
3', 3") are adapted per bundle to the quantity of light to be
transmitted.
Claim 15
Dependent Claim
28 words
Endoscope according to claim 1, characterised in that at
least one insufflation channel (14) and/or at least one
flushing channel (15) is/are provided in the jacket tube
(19).
Claim 16
Dependent Claim
30 words
Endoscope according to claims 2 and 15, characterised in
that the insufflation channel (14) is arranged between the
second glass fibre bundle (3, 3', 3") and the optical system
(1).
Claim 17
Dependent Claim
46 words
Endoscope according to claim 15, characterised in that a
means (16, 17) for beam shaping is mounted on the distal end
of the insufflation channel (14), the means being used to
clean the distal end (1.2) of the endoscope and, in
particular, the image entrance face.
Claim 18
Dependent Claim
32 words
Endoscope according to claim 1, characterised in that a
heater (18) is provided in the jacket tube (19) to control the
temperature of an insufflation gas conveyed in the
insufflation channel (14).
Claim 19
Dependent Claim
32 words
Endoscope according to claim 1, characterised in that a
heater (18) is provided in the jacket tube (19) to control the
temperature of a flushing liquid conveyed in the flushing
channel (15).
Claim 20
Dependent Claim
41 words
Endoscope according to claim 2, characterised in that a
heater (18) is provided in the jacket tube (19) to control the
temperature of the jacket tube (19), including at least one of
the glass fibre bundles (2, 2', 3, 3', 3").
Claim 21
Dependent Claim
46 words
Endoscope according to claim 15, characterised in that a
means (16, 17) for beam shaping is mounted on the distal end
of the flushing channel (15), the means being used to clean
the distal end (1.2) of the endoscope and, in particular, the
image entrance face.
Claim 22
Dependent Claim
30 words
Endoscope according to claims 2 and 15, characterised in
that the flushing channel (15) is arranged between the second
glass fibre bundle (3, 3', 3") and the optical system (1).
References Cited (Backward Citations)
No citation records indexed.
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