EP1161175B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Medical or technical endoscopic instrument
Assignee: Karl Storz SE and Co KG
•
Filing: 2000-02-18
•
Granted: 2005-05-11
•
Expires: 2020-02-18
Abstract
No abstract record available.
Inventors
- 👤 Frank Gminder
- 👤 Horst Dittrich
- 👤 Frank Doll
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 03:53
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/12; A61B1/127
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
94 words
A medical or technical endoscopic instrument, comprising a
shaft (12) having an endoscope optical system (14)
arranged therein, which comprises a distal front face
(20), and a working element (24, 74) also arranged in the
shaft (12), wherein, further, the shaft (12) serves to
supply an irrigation fluid into an operation or application
area, wherein flow-influencing means (48; 76) are
provided such that the irrigation fluid reaches in front
of the front face (20) of the endoscope optical system
(14), characterized in that the flow-influencing means are
provided on the working element (24; 74).
Claim 2
Dependent Claim
39 words
The instrument of claim 1, characterized in that the flow-influencing
means (48; 76) are configured as flow obstructions
which cause a swirling of the irrigation fluid in
front of the front face (20) of the endoscope optical system
(14).
Claim 3
Dependent Claim
37 words
The instrument of claim 1 or 2, characterized in that the
flow-influencing means (48; 76) are configured as flow deflection
means, which generate a flow component along the
front face (20) of the endoscope optical system (14).
Claim 4
Dependent Claim
56 words
The instrument of anyone of claims 1 through 3, characterized
in that the flow-influencing means (48; 76) comprise
at least one flow element (50; 64, 66, 68; 78; 80, 82, 84)
which has a surface (52, 70), against which the irrigation
fluid flows and which is inclined or runs transversely
with respect to the flow direction.
Claim 5
Dependent Claim
29 words
The instrument of claim 4, characterized in that the surface
(52, 70) is flat or has a concave curvature directed
to an axis (21) of the endoscope optical system.
Claim 6
Dependent Claim
33 words
The instrument of claim 4 or 5, characterized in that several flow elements (50, 64, 66, 68; 78; 80, 82, 84) are
arranged axially and/or circumferentially distributed on
the working element (24; 74).
Claim 7
Dependent Claim
118 words
The instrument of anyone of claims 1 through 6, characterized
in that the working element (24) comprises a forked
section (54) in a distal region, wherein two legs (56, 58)
of the forked section (54) run axially along the sides of
the endoscope optical system (14) and run together in a
proximal unitary section (60), which extends axially adjacent
to the endoscope optical system (14), and wherein the
working element (24) comprises a bend (62) in the transition
region from the forked section (54) to the unitary
section (60), which lies axially in the region of the
front face (20) of the endoscope optical system (14) in at
least one axial working position of the working element
(24).
Claim 8
Dependent Claim
28 words
The instrument of anyone of the claims 1 through 7, characterized
in that the working element (24; 74) is axially
shiftable relative to the endoscope optical system (14).
Claim 9
Dependent Claim
29 words
The instrument of anyone of claims 1 through 8, characterized
in that the working element (24) is an electrode carrier
(30) which carries an electrode (28) supplyable with
HF-current.
Claim 10
Dependent Claim
25 words
The instrument of anyone of claims 1 through 9, characterized
in that the working element (74) comprises a shaft
with a mechanically acting tool (75).
References Cited (Backward Citations)
No citation records indexed.
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