EP0402467A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Catheter tube and endoscope
Assignee: Terumo Corp
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Filing: 1989-02-10
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Granted: —
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Expires: 2009-02-10
Abstract
Abstract When an observation unit is attached to a catheter tube having a first inflatable balloon on a tube body and a second balloon which is set uninflated in the tube body and can be extended from the tube body to be inflated, the catheter tube can be used as an endoscope for observing the interior of a body cavity and giving a medical treatment thereto from a position outside the body. This tube is capable of defining an observation space of an arbitrary length between the first and second balloons, and preventing the entry of a body fluid, such as blood, thereinto. This enables a transparent visual field to be obtained.
Inventors
- 👤 Hiroaki Honda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 00:03
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/012; A61B1/015; A61B1/00064; A61B1/00071; A61B1/0008; A61B1/00082; A61B1/00147; A61B1/00154; A61B1/018; A61M; A61M25/00; A61M25/10; A61M25/1011; A61M2025/1015; A61M2025/1043; A61M2025/1052
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
148 words
(1) A catheter tube characterized in that the catheter tube comprises a tube main body, an inflatable first balloon placed around an outer peripheral wall of the tube in the vicinity of a distal end of the tube main body, a first lumen formed in the tube main body and communicating with an interior of said first balloon, a tubular member provided in the vicinity of a distal end thereof with an inflatable second balloon and having a passage communicating with exterior and interior of said second balloon, and a second lumen formed in said tube main body and adapted for accommodating said tubular member, wherein said tubular member moves axially within said second lumen with said second balloon remaining in the deflated state so that said second balloon can be moved to a position spaced a predetermined distance from the distal end of said tube main body.
Claim 2
Dependent Claim
20 words
(2) The catheter tube according to claim 1, wherein the constituent material of said tubular member is an ultraelastic alloy.
Claim 3
Dependent Claim
24 words
(3) The catheter tube according to claims 1 or 2, wherein said tubular member is used as the guide wire for said catheter tube.
Claim 4
Dependent Claim
145 words
(4) A catheter tube characterized in that the catheter tube comprises tube main body, an inflatable first balloon place around an outer peripheral wall of the tube in the vicinity of a distal end of the tube main body, a lumen formed in said tube main body, said lumen communicating with the inside of said first balloon and opening into the foremost part of the tube main body, and a tubular member accommodated within said lumen, said tubular member having an inflatable second balloon in the vicinity of the distal end thereof and a passage communicating with the interior of said second balloon, wherein said tubular member moves axially within said lumen with said second balloon remaining in the deflated state so that said second balloon can be moved to a position spaced a predetermined distance from the distal end of said tube main body.
Claim 5
Dependent Claim
24 words
(5) The catheter tube according to any one of claims 1 to 4, wherein said catheter tube is a catheter tube for blood vessel.
Claim 6
Dependent Claim
43 words
(6) An endoscope characterized in that the tube main body of the catheter tube according to any one of claims 1 to 5 is provided with a lumen adapted for accommodating an observation instrument, and the observation instrument is accommodated within said lumen.
Claim 7
Dependent Claim
168 words
Claims: (1) A catheter ttrbe characterized in that the catheter tube comprises a tube main body, an inflatable first balloon placed around an outer peripheral wall of the tube in the vicinity of a distal end of the tube main body, a first lumen formed in the tube main body and communicating with an interior of said first balloon, a tubular member provided in the vicinity of a distal end thereof with an inflatable second balloon and having a passage communicating with exterior and interior of said second balloon, and a second lumen formed in said tube main body and adapted for accommodating said tubular member, wherein said tubular member moves axially within said second lumen with said second balloon remaining in the deflated state so that said second balloon can be moved to a position spaced a predetermined distance from the distal end of said tube main body, and a space for observation having an arbitrary length is definable between said first balloon and said second balloon.
Claim 8
Dependent Claim
20 words
(2) The catheter tube according to claim 1, wherein the constituent material of said tubular member is an ultraelastic alloy.
Claim 9
Dependent Claim
24 words
(3) The catheter tube according to claims 1 or 2, wherein said tubular member is used as the guide wire for said catheter tube.
References Cited (Backward Citations)
No citation records indexed.
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