US4130905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial malleus columella for the human ear
Assignee: Individual
•
Filing: 1977-06-03
•
Granted: 1978-12-26
•
Expires: 1997-06-03
Abstract
Abstract This invention provides an improvement in an artificial malleus columella for the human ear of the type comprising an elongated laminar part conformed in an obtuse angle. Resilient fixing means projects from the laminar part to permit attachment to the bridge of the human ear and a stem is fixed by one end to a face of said laminar part. The other end of the stem contacts the stapes. The resilient fixing means projects away from the mentioned angle and is in the form of a clamp. A disc like element is arranged on the laminar part at a location remote from said clamp.
Inventors
- 👤 Eduardo C. C. Mercandino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:29
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/18; A61F2002/183
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
105 words
An artificial malleus columella for the human ear comprising an elongated member angled downwardly at a point along its length to provide first and second linear portions, said angle being an obtuse angle, a stem depending from the underside of the first linear portion to contact the stapes of the middle ear when the artificial malleus columella is in position and a clamp adapted to engage the bridge of the ear and being located on the external surface of the obtuse angle and extending over the second linear portion whereby the artificial malleus columella will be held in position below the level of said bridge.
Claim 2
Dependent Claim
105 words
An artificial malleus columella for the human ear comprising an elongated member angled downwardly at a point along its length to provide first and second linear portions, said angle being an obtuse angle, a stem depending from the underside of the first linear portion to contact the stapes of the middle ear when the artificial malleus columella is in position and a clamp adapted to engage the bridge of the ear and being located on the external surface of the obtuse angle and extending over the second linear portion whereby the artificial malleus columella will be held in position below the level of said bridge.
Claim 3
Dependent Claim
31 words
An artificial malleus columella according to claim 1, wherein the clamp is substantially C-shaped with the limbs of the clamp extending substantially parallel to said first linear portion and directed outwardly.
Claim 4
Dependent Claim
32 words
An artificial malleus columella according to claim 2, wherein a disc shaped element is mounted on the upper surface of the first linear portion at the end remote from said C-shaped clamp.
Claim 5
Dependent Claim
17 words
An artificial malleus columella according to claim 1, wherein said artificial malleus columella is of plastics material.
References Cited (Backward Citations)
US3473170A
Cited
US3823423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-25 | 1982-06-26 | 1982-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-25 | 1986-06-26 | 1986-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-25 | 1990-06-26 | 1990-12-26 | $7700.00 | Window Closed / Lapsed |