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US4832004A Expired / Lapsed US ⏱️ 0.0 years remaining

Laryngoscope for laser treatment

Assignee: Richard Wolf GmbH
•
Filing: 1987-04-10
•
Granted: 1989-05-23
•
Expires: 2007-04-10
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Abstract

Abstract A laryngoscope for laser treatment of the larynx comprises a hollow shaft, a hollow handle on the proximal end of the shaft communicating with the hollow inside of the shaft, a coupling on the handle for an angularly adjustable chest support and a hose connector stub or the like on the coupling or the handle for applying suction via the handle and the shaft to remove smoke and/or steam from the operating site at the distal end of the shaft.

Inventors

  • 👤 Helmut Heckele

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:35
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/201; A61B1/00; A61B1/267; A61B2218/00; A61B2218/001; A61B2218/007; A61B2218/008

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 184 words
In a laryngoscope for laser treatment of the larynx, said laryngoscope having a hollow shaft with a hollow handle attached in fluid communication to said shaft at a proximal end of the shaft and projecting at an angle thereto, said handle at a free end being provided with a coupling part, said coupling part having an articulation for pivotably and adjustably mounting a chest support, the improvements comprising a focusing insert for a laser, a proximal end region of the laryngoscope shaft being connected to a source of suction via the coupling part of the handle to draw a suction through the shaft and handle, said coupling part for the connection of the chest support and the source of suction being laterally offset relative to an axis of the handle, said coupling part providing a mounting for the focussing insert, said focussing insert including a tubular part extending from the mounting through the length of said handle and terminating in a reflector disposed in said shaft so that a laser beam proceeding through the insert in the handle is reflected into said hollow shaft.
Claim 2
Dependent Claim 184 words
In a laryngoscope for laser treatment of the larynx, said laryngoscope having a hollow shaft with a hollow handle attached in fluid communication to said shaft at a proximal end of the shaft and projecting at an angle thereto, said handle at a free end being provided with a coupling part, said coupling part having an articulation for pivotably and adjustably mounting a chest support, the improvements comprising a focusing insert for a laser, a proximal end region of the laryngoscope shaft being connected to a source of suction via the coupling part of the handle to draw a suction through the shaft and handle, said coupling part for the connection of the chest support and the source of suction being laterally offset relative to an axis of the handle, said coupling part providing a mounting for the focussing insert, said focussing insert including a tubular part extending from the mounting through the length of said handle and terminating in a reflector disposed in said shaft so that a laser beam proceeding through the insert in the handle is reflected into said hollow shaft.
Claim 3
Dependent Claim 28 words
In a laryngoscope according to claim 1, wherein the coupling part includes a hose connector stud for connecting a hose from a source of suction to said laryngoscope.

References Cited (Backward Citations)

US2243285A Cited
US2483233A Cited
US3091235A Cited
US3261350A Cited
GB1424893A Cited
US4126127A Cited
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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) 1992-05-22 1992-11-21 1993-05-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-05-22 1996-11-21 1997-05-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-05-22 2000-11-21 2001-05-23 $7700.00 Window Closed / Lapsed

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