US4862874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoscope for removal of thrombi from pulmonary arterial vessels
Assignee: Individual
•
Filing: 1988-06-09
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Granted: 1989-09-05
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Expires: 2008-06-09
Abstract
Abstract An endoscope having at least one light conductor, an image conductor and a rinsing channel, whereby the light and the image conductor as well as the rinsing channel open at a tip of an end part at the patient end of the endoscope, the end part of the endoscope tube being bilaterally turnable via Bowden wires, the end part being surrounded by a first dilatable ballon, a suction channel for connection to a suction pump having a diameter which is greater than the diameter of the rinsing channel extending in the endoscope tube, the suction channel also extending to the tip, and a catheter which extends beyond the tip extending in the endoscope tube, the catheter having a second dilatable balloon at its end.
Inventors
- 👤 Hans-Jorg Kellner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:20
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B1/00; A61B1/00064; A61B1/00071; A61B1/0008; A61B1/00082; A61B1/012; A61B1/015; A61B1/018; A61B2017/22051; A61B2017/22072; A61B2017/22082; A61B2017/22084; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
173 words
An endoscope having at least one light conductor, one image conductor, a rinsing channel, a suction channel and a working channel, the light and the image conductor as well as the rinsing, the suction and the working channel being open at a tip of an end part at the patient end of the endoscope tube, the suction channel for connection to a suction pump having a diameter which is greater than the diameter of the rinsing channel, the end part of the endoscope tube being bilaterally turnable via Bowden wires, the end part being surrounded by a first dilatable balloon, a catheter being guided in a sliding manner in the working channel, said catheter extending beyond the tip and having a second dilatable balloon at its end, the endoscope tube having a bifurcation at its end opposite the end part at the patient end, the light and image conductor as well as the Bowden wires extending in one branch of the bifurcation, and the other branch of the bifurcation containing the remaining channels.
Claim 2
Dependent Claim
173 words
An endoscope having at least one light conductor, one image conductor, a rinsing channel, a suction channel and a working channel, the light and the image conductor as well as the rinsing, the suction and the working channel being open at a tip of an end part at the patient end of the endoscope tube, the suction channel for connection to a suction pump having a diameter which is greater than the diameter of the rinsing channel, the end part of the endoscope tube being bilaterally turnable via Bowden wires, the end part being surrounded by a first dilatable balloon, a catheter being guided in a sliding manner in the working channel, said catheter extending beyond the tip and having a second dilatable balloon at its end, the endoscope tube having a bifurcation at its end opposite the end part at the patient end, the light and image conductor as well as the Bowden wires extending in one branch of the bifurcation, and the other branch of the bifurcation containing the remaining channels.
Claim 3
Dependent Claim
26 words
An endoscope according to claim 1, in which said other branch ends in a coupler which is common for the channel contained in said other branch.
Claim 4
Dependent Claim
44 words
An endoscope according to claim 2, in which the endoscope tube has a circular cross section, the suction channel being disposed eccentrically therein and the light and image conductor as well as the other channels extend in the thicker part of the tubing wall.
Claim 5
Dependent Claim
24 words
An endoscope according to claim 1, in which the light and image carrying conductors are guided in a common channel of the endoscope tube.
Claim 6
Dependent Claim
24 words
An endoscope according to claim 1, in which the one branch, together with the light and image conductors, are removable from the endoscope tube.
Claim 7
Dependent Claim
43 words
An endoscope according claim 1, in which the endoscope tube has a circular cross section, the suction channel being disposed eccentrically therein and the light and image conductor as well as the other channels extend in the thicker part of the tubing wall.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-04 | 1993-03-06 | 1993-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-04 | 1997-03-06 | 1997-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-04 | 2001-03-06 | 2001-09-05 | $7700.00 | Window Closed / Lapsed |