Patent US4858595A successfully refreshed from Google Patents.
US4858595A
Expired / Lapsed
US
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Mediastinoscope
Assignee: Richard Wolf GmbH
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Filing: 1988-10-06
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Granted: 1989-08-22
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Expires: 2008-10-06
Abstract
Abstract A mediastinoscope having a shaft which is traversed by a photoconductor and an observation optical system, with the shaft being provided at its distal end with an atraumatically shaped cap, the greatest diameter of which is greater in comparison with the diameter of the shaft and into a cavity of which distally has an aperture, channels and the end of the optical system open out. Auxiliary instruments extending through a shaft channel can be conducted distalwards as far as the treatment location.
Inventors
- 👤 Gerhard Buess
- 👤 Manfred Boebel
- 👤 Siegfried Hiltebrandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:40
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B1/00; A61B1/273; A61B1/2733
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
84 words
A mediastinoscope having a shaft which is traversed by a photoconductor and an observation optical system, said shaft having a distal end provided with an atraumatically shaped cap having a greatest diameter which is greater than that of the shaft and defining a cavity with a distal aperture, into which said cavity there open channels and the end of the optical system, said shaft defining a shaft channel through which auxiliary instruments extending therethrough can be guided distalwards as far as a treatment location.
Claim 2
Dependent Claim
84 words
A mediastinoscope having a shaft which is traversed by a photoconductor and an observation optical system, said shaft having a distal end provided with an atraumatically shaped cap having a greatest diameter which is greater than that of the shaft and defining a cavity with a distal aperture, into which said cavity there open channels and the end of the optical system, said shaft defining a shaft channel through which auxiliary instruments extending therethrough can be guided distalwards as far as a treatment location.
Claim 3
Dependent Claim
35 words
A mediastinoscope according to claim 1 in which the shaft channel having a sealing cap at the proximal side, for the passing through of the auxiliary instruments can be shut off at the proximal end.
Claim 4
Dependent Claim
21 words
A mediastinoscope according to claim 1, in which the observation optical system is angled laterally proximally with respect to an ocular.
Claim 5
Dependent Claim
21 words
A mediastinoscope according to claim 2, in which the observation optical system is angled laterally proximally with respect to an occular.
Claim 6
Dependent Claim
33 words
A mediastinoscope according to claim 1, in which a distal-side part of the cap has, on a one circumferential side, channels which lie opposite to a mouth of a suction and flushing channel.
Claim 7
Dependent Claim
33 words
A mediastinoscope according to claim 2, in which a distal-side part of the cap has, on a one circumferential side, channels which lie opposite to a mouth of a suction and flushing channel.
Claim 8
Dependent Claim
33 words
A mediastinoscope according to claim 3, in which a distal-side part of the cap has, on a one circumferential side, channels which lie opposite to a mouth of a suction and flushing channel.
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) | 1992-08-21 | 1993-02-20 | 1993-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-21 | 1997-02-20 | 1997-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-21 | 2001-02-20 | 2001-08-22 | $7700.00 | Window Closed / Lapsed |