US4616633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractor for use in oral and maxillofacial surgery
Assignee: Commonwealth of Puerto Rico
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Filing: 1985-03-07
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Granted: 1986-10-14
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Expires: 2005-03-07
Abstract
Abstract An instrument for retracting soft tissue during oral and maxillofacial surgery has a handle, a palm engaging lesser blade at one end of the handle and a greater active blade which extends at an adjustable angle from the other end of the handle.
Inventors
- 👤 Arturo Vargas Garcia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:41
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A retractor for soft tissue for use during oral and maxillofacial surgery formed from a strip of flat bendable material of substantially constant width and thickness, and comprising: (a) a substantially straight handle part, (b) a greater active blade part connected to one end of the handle part through an area of reduced thickness and extending from the handle at an obtuse angle of approximately 100° and having: (i) an outer end part of reduced thickness having a tip end curved toward the handle and a patterened inner surface, and (c) a lesser active blade part connected to the other end of the handle part the outer end of which is of lesser height above the handle than the outer end of the greater active blade part and being curved throughout its length back toward the handle part through approximately 95° , the connection of the greater active blade part to the handle part being malleable to permit angular adjustment of the greater active blade part with respect to the handle part.
Claim 2
Dependent Claim
172 words
A retractor for soft tissue for use during oral and maxillofacial surgery formed from a strip of flat bendable material of substantially constant width and thickness, and comprising: (a) a substantially straight handle part, (b) a greater active blade part connected to one end of the handle part through an area of reduced thickness and extending from the handle at an obtuse angle of approximately 100° and having: (i) an outer end part of reduced thickness having a tip end curved toward the handle and a patterened inner surface, and (c) a lesser active blade part connected to the other end of the handle part the outer end of which is of lesser height above the handle than the outer end of the greater active blade part and being curved throughout its length back toward the handle part through approximately 95° , the connection of the greater active blade part to the handle part being malleable to permit angular adjustment of the greater active blade part with respect to the handle part.
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) | 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 |