Patent US4037588A successfully refreshed from Google Patents.
US4037588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laryngoscopes
Assignee: Richard Wolf GmbH
•
Filing: 1976-03-15
•
Granted: 1977-07-26
•
Expires: 1996-03-15
Abstract
Abstract In a laryngoscope comprising a handle member and a light-conducting spatula member means comprising complementary inter-engaging parts are provided for detachably connecting the handle and spatula members positively together. The inter-engaging parts form a joint selected from the group comprising slide-in and plug-in joints. A lamp may be arranged in the handle member for projecting light therefrom into an entry face for light at the proximal end of the spatula member, the lamp being connectible to an external current source or being connected to an internal current source in the handle.
Inventors
- 👤 Helmut Heckele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:32
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/267; A61B1/06; A61B1/07; A61B1/00064; A61B1/00105
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
174 words
A laryngnoscope comprising an elongated handle member, a spatula member made of a light-conducting material, said handle member when held in a vertical position presenting at its upper end a flat face in a vertical plane inwardly off-set from the longitudinal axis of the handle member, said handle member when so held also presenting both a dove-tailed mounting slot and flat upwardly facing horizontal shoulders on either side of the slot extending perpendicularly outward of the flat face, light emitting means mounted in the handle and having a light emitting element located in said flat face to illuminate the proximal end of the spatula member when mounted on the handle member, and said spatula member presenting at its proximal end a flat face complemented to the flat face of the handle member and having at its proximal end both a dove-tailed mounting projection and a pair of flat shoulders, both located beneath the flat face of the spatula, and complementalyslidable into and on to the mounting slot and flat shoulders of the handle member.
Claim 2
Dependent Claim
174 words
A laryngnoscope comprising an elongated handle member, a spatula member made of a light-conducting material, said handle member when held in a vertical position presenting at its upper end a flat face in a vertical plane inwardly off-set from the longitudinal axis of the handle member, said handle member when so held also presenting both a dove-tailed mounting slot and flat upwardly facing horizontal shoulders on either side of the slot extending perpendicularly outward of the flat face, light emitting means mounted in the handle and having a light emitting element located in said flat face to illuminate the proximal end of the spatula member when mounted on the handle member, and said spatula member presenting at its proximal end a flat face complemented to the flat face of the handle member and having at its proximal end both a dove-tailed mounting projection and a pair of flat shoulders, both located beneath the flat face of the spatula, and complementalyslidable into and on to the mounting slot and flat shoulders of the handle member.
Claim 3
Dependent Claim
30 words
A laryngoscope according to claim 1 in which the spatula is a disposable plastic part having an outer surface which is inwardly reflective where light is not intended to emerge.
Claim 4
Dependent Claim
172 words
A largyngoscope comprising an elongated handle member, a spatula member made of a light-conducting material, said handle member when held in a vertical position presenting at its upper end a flat face in a vertical plane inwardly off-set from the longitudinal axis of the handle member, light emitting means mounted in the handle and having a light emitting element located in said face to illuminate the proximal end of the spatula member when mounted on the handle member, said spatula member having at its proximal end a flat face complemented to the flat face of the handle member to be illuminated by said light emitting element when the faces are in flush contact, the handle member in a portion communicating with its flat face and the spatula member in a portion communicating with its flat face having complemental projection-in-slot configurations perpendicular to the flat faces enabling the spatula member to be detachably mounted on the handle member with the flat faces in contact and the spatula extending perpendicular to the handle member.
Claim 5
Dependent Claim
172 words
A largyngoscope comprising an elongated handle member, a spatula member made of a light-conducting material, said handle member when held in a vertical position presenting at its upper end a flat face in a vertical plane inwardly off-set from the longitudinal axis of the handle member, light emitting means mounted in the handle and having a light emitting element located in said face to illuminate the proximal end of the spatula member when mounted on the handle member, said spatula member having at its proximal end a flat face complemented to the flat face of the handle member to be illuminated by said light emitting element when the faces are in flush contact, the handle member in a portion communicating with its flat face and the spatula member in a portion communicating with its flat face having complemental projection-in-slot configurations perpendicular to the flat faces enabling the spatula member to be detachably mounted on the handle member with the flat faces in contact and the spatula extending perpendicular to the handle member.
Claim 6
Dependent Claim
28 words
A laryngoscope according to claim 3 in which the spatula member is a disposable plastic part which is inwardly reflective in areas where light is not to emerge.
References Cited (Backward Citations)
US1246338A
Cited
US1642187A
Cited
US2186143A
Cited
US2630114A
Cited
US3195536A
Cited
US3826248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |