US4616634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soft tissue protector for use in oral and maxillofacial surgery
Assignee: Commonwealth of Puerto Rico
•
Filing: 1985-03-07
•
Granted: 1986-10-14
•
Expires: 2005-03-07
Abstract
Abstract A unitary instrument for protection and retraction of the soft tissues of the oral cavity during oral and maxillofacial surgery has a central handle part and active blade parts extending from the ends of the handle parts at different curvatures, with oppositely and differently curved blade extremities for adaptation to the relatively inaccessible areas of the maxillofacial region.
Inventors
- 👤 Arturo Vargas Garcia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:00
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A unitary instrument for the protection and retraction of the soft tissues of the oral cavity during surgery formed of thin strip stainless steel and comprising: (a) an elongated handle part of linear configuration, (b) a first active blade part connected to one end of the handle part through a curved section and forming an obtuse angle with the handle part, (c) a second active blade part connected to the handle part through a curved section and forming with the handle part an obtuse angle greater than the angle between the handle and the first active blade part, (d) each of the blade parts having at its outer end a section formed into a curve extending away from the handle part, the curved part at the outer end of the first blade part being thinner and wider than the remainder of the blade part and the curved part at the outer end of the second blade part being thinner and narrower than the remainder of the blade part.
Claim 2
Dependent Claim
168 words
A unitary instrument for the protection and retraction of the soft tissues of the oral cavity during surgery formed of thin strip stainless steel and comprising: (a) an elongated handle part of linear configuration, (b) a first active blade part connected to one end of the handle part through a curved section and forming an obtuse angle with the handle part, (c) a second active blade part connected to the handle part through a curved section and forming with the handle part an obtuse angle greater than the angle between the handle and the first active blade part, (d) each of the blade parts having at its outer end a section formed into a curve extending away from the handle part, the curved part at the outer end of the first blade part being thinner and wider than the remainder of the blade part and the curved part at the outer end of the second blade part being thinner and narrower than the remainder of the blade part.
References Cited (Backward Citations)
US4147167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-13 | 1990-04-14 | 1990-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-13 | 1994-04-14 | 1994-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-13 | 1998-04-14 | 1998-10-14 | $7700.00 | Window Closed / Lapsed |