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US6503193B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Flexible tube for endoscope

Assignee: Hoya Corp
•
Filing: 2000-04-13
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Granted: 2003-01-07
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Expires: 2020-04-13
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Abstract

Abstract A flexible tube for an endoscope is provided with an outer tube member. A synthetic resin layer is formed on an outer circumferential surface of the outer tube member. A coating layer is further formed on the outer circumferential surface of the synthetic resin layer. The outer circumferential surface of the synthetic resin layer is provided with at least one groove or protrusion.

Inventors

  • 👤 Tomoko Iwasaki
  • 👤 Kenichi Ohara
  • 👤 Akira Sugiyama
  • 👤 Naoya Ouchi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 10:46
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/00064; A61B1/00071; A61M; A61M25/00; A61M25/0043; A61M25/0045; A61B1/00163; A61B1/00165; A61M25/0021; A61M25/0023; A61M25/0026; A61M2025/0036; A61M2025/004; A61M2025/006; A61M25/005

Claims Analysis

Total Claims: 31
Claim 1
Independent Claim 89 words
A flexible tube for an endoscope, having an outer tube member, a synthetic resin layer being formed on an outer circumferential surface of said outer tube member, a coating layer being formed on an outer circumferential surface of said synthetic resin layer, said outer circumferential surface of said synthetic resin layer being provided with at least one groove which extends substantially parallel with an axis of said outer tube member, and an inner surface of said coating layer contacting at least a portion of said at least one groove.
Claim 2
Dependent Claim 89 words
A flexible tube for an endoscope, having an outer tube member, a synthetic resin layer being formed on an outer circumferential surface of said outer tube member, a coating layer being formed on an outer circumferential surface of said synthetic resin layer, said outer circumferential surface of said synthetic resin layer being provided with at least one groove which extends substantially parallel with an axis of said outer tube member, and an inner surface of said coating layer contacting at least a portion of said at least one groove.
Claim 3
Dependent Claim 25 words
The flexible tube according to claim 1 , wherein said at least one groove is provided over substantially an entire length of said flexible tube.
Claim 4
Dependent Claim 19 words
The flexible tube according to claim 1 , wherein said at least one groove comprises a plurality of grooves.
Claim 5
Dependent Claim 27 words
The flexible tube according to claim 1 , wherein said at least one groove is formed helically on said outer circumferential surface of said synthetic resin layer.
Claim 6
Dependent Claim 29 words
The flexible tube according to claim 1 , wherein said inner surface of said coating layer is bonded to at least a portion of said at least one groove.
Claim 7
Dependent Claim 17 words
The flexible tube according to claim 1 , wherein said coating layer is substantially resistant to chemicals.
Claim 8
Dependent Claim 13 words
The flexible tube according to claim 6 , wherein the chemicals are disinfectants.
Claim 9
Dependent Claim 93 words
A flexible tube for an endoscope, having an outer tube member, a synthetic resin layer being formed on an outer circumferential surface of said outer tube member, a coating layer being formed on an outer circumferential surface of said synthetic resin layer, said outer circumferential surface of said synthetic resin layer being provided with at least one protrusion which extends substantially parallel with an axis of said outer tube member, and an inner surface of said coating layer contacting at least a portion of a region adjacent to said at least one protrusion.
Claim 10
Dependent Claim 93 words
A flexible tube for an endoscope, having an outer tube member, a synthetic resin layer being formed on an outer circumferential surface of said outer tube member, a coating layer being formed on an outer circumferential surface of said synthetic resin layer, said outer circumferential surface of said synthetic resin layer being provided with at least one protrusion which extends substantially parallel with an axis of said outer tube member, and an inner surface of said coating layer contacting at least a portion of a region adjacent to said at least one protrusion.
Claim 11
Dependent Claim 25 words
The flexible tube according to claim 8 , wherein said at least one protrusion is provided over substantially an entire length of said flexible tube.
Claim 12
Dependent Claim 19 words
The flexible tube according to claim 8 , wherein said at least one protrusion comprises a plurality of protrusions.
Claim 13
Dependent Claim 27 words
The flexible tube according to claim 8 , wherein said at least one protrusion is formed helically on said outer circumferential surface of said synthetic resin layer.
Claim 14
Dependent Claim 33 words
The flexible tube according to claim 8 , wherein said inner surface of said coating layer is bonded to at least a portion of a region adjacent to said at least one protrusion.
Claim 15
Dependent Claim 17 words
The flexible tube according to claim 8 , wherein said coating layer is substantially resistant to chemicals.
Claim 16
Dependent Claim 13 words
The flexible tube according to claim 13 , wherein the chemicals are disinfectants.
Claim 17
Dependent Claim 111 words
A flexible tube for an endoscope, comprising: an outer tube member; a synthetic resin layer on an outer circumferential surface of said outer tube member, said synthetic resin layer having an outer circumferential surface; at least one groove and at least one protrusion on said outer circumferential surface of said synthetic resin layer, at least one of said at least one groove and said at least one protrusion extending substantially parallel with an axis of said outer tube member; and a coating layer on said outer circumferential surface of said synthetic resin layer, an inner surface of said coating layer contacting at least a portion of said at least one groove.
Claim 18
Dependent Claim 111 words
A flexible tube for an endoscope, comprising: an outer tube member; a synthetic resin layer on an outer circumferential surface of said outer tube member, said synthetic resin layer having an outer circumferential surface; at least one groove and at least one protrusion on said outer circumferential surface of said synthetic resin layer, at least one of said at least one groove and said at least one protrusion extending substantially parallel with an axis of said outer tube member; and a coating layer on said outer circumferential surface of said synthetic resin layer, an inner surface of said coating layer contacting at least a portion of said at least one groove.
Claim 19
Dependent Claim 29 words
The flexible tube according to claim 15 , wherein said inner surface of said coating layer is bonded to at least a portion of said at least one groove.
Claim 20
Dependent Claim 16 words
The flexible tube according to claim 15 , wherein said coating layer is resistant to chemicals.
Claim 21
Dependent Claim 13 words
The flexible tube according to claim 17 , wherein the chemicals are disinfectants.
Claim 22
Dependent Claim 90 words
A flexible tube for an endoscope, comprising: an outer tube member; a synthetic resin layer on an outer circumferential surface of said outer tube member, said synthetic resin layer having an outer circumferential surface; at least one groove which extends substantially parallel with an axis of said outer tube member and positioned on said outer circumferential surface of said synthetic resin layer; and a coating layer on said outer circumferential surface of said synthetic resin layer, an inner surface of said coating layer protruding into said at least one groove.
Claim 23
Dependent Claim 90 words
A flexible tube for an endoscope, comprising: an outer tube member; a synthetic resin layer on an outer circumferential surface of said outer tube member, said synthetic resin layer having an outer circumferential surface; at least one groove which extends substantially parallel with an axis of said outer tube member and positioned on said outer circumferential surface of said synthetic resin layer; and a coating layer on said outer circumferential surface of said synthetic resin layer, an inner surface of said coating layer protruding into said at least one groove.
Claim 24
Dependent Claim 29 words
The flexible tube according to claim 19 , wherein said inner surface of said coating layer is bonded to at least a portion of said at least one groove.
Claim 25
Dependent Claim 17 words
The flexible tube according to claim 19 , wherein said coating layer is substantially resistant to chemicals.
Claim 26
Dependent Claim 79 words
A flexible tube for an endoscope, having an outer tube member, a synthetic resin layer being formed on an outer circumferential surface of said outer tube member, a substantially disinfectant-resistant coating layer being formed on an outer circumferential surface of said synthetic resin layer, said outer circumferential surface of said synthetic resin layer being provided with at least one groove, and an inner surface of said coating layer contacting at least a portion of said at least one groove.
Claim 27
Dependent Claim 79 words
A flexible tube for an endoscope, having an outer tube member, a synthetic resin layer being formed on an outer circumferential surface of said outer tube member, a substantially disinfectant-resistant coating layer being formed on an outer circumferential surface of said synthetic resin layer, said outer circumferential surface of said synthetic resin layer being provided with at least one groove, and an inner surface of said coating layer contacting at least a portion of said at least one groove.
Claim 28
Dependent Claim 83 words
A flexible tube for an endoscope, having an outer tube member, a synthetic resin layer being formed on an outer circumferential surface of said outer tube member, a substantially disinfectant-resistant coating layer being formed on an outer circumferential surface of said synthetic resin layer, said outer circumferential surface of said synthetic resin layer being provided with at least one protrusion, and an inner surface of said coating layer contacting at least a portion of a region adjacent to said at least one protrusion.
Claim 29
Dependent Claim 83 words
A flexible tube for an endoscope, having an outer tube member, a synthetic resin layer being formed on an outer circumferential surface of said outer tube member, a substantially disinfectant-resistant coating layer being formed on an outer circumferential surface of said synthetic resin layer, said outer circumferential surface of said synthetic resin layer being provided with at least one protrusion, and an inner surface of said coating layer contacting at least a portion of a region adjacent to said at least one protrusion.
Claim 30
Dependent Claim 87 words
A flexible tube for an endoscope, comprising: an outer tube member; a synthetic resin layer on an outer circumferential surface of said outer tube member, said synthetic resin layer having an outer circumferential surface; at least one groove and at least one protrusion on said outer circumferential surface of said synthetic resin layer; and a substantially disinfectant-resistant coating layer on said outer circumferential surface of said synthetic resin layer, an inner surface of said coating layer contacting at least a portion of said at least one groove.
Claim 31
Dependent Claim 87 words
A flexible tube for an endoscope, comprising: an outer tube member; a synthetic resin layer on an outer circumferential surface of said outer tube member, said synthetic resin layer having an outer circumferential surface; at least one groove and at least one protrusion on said outer circumferential surface of said synthetic resin layer; and a substantially disinfectant-resistant coating layer on said outer circumferential surface of said synthetic resin layer, an inner surface of said coating layer contacting at least a portion of said at least one groove.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2006-01-06 2006-07-08 2007-01-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2010-01-06 2010-07-08 2011-01-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2014-01-06 2014-07-08 2015-01-07 $7700.00 Window Closed / Lapsed

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