US4384373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for functional restoration of an extremity
Assignee: Individual
•
Filing: 1981-03-16
•
Granted: 1983-05-24
•
Expires: 2001-03-16
Abstract
Abstract The device disclosed in the present invention for functional restoration of an extremity comprises an artificial hip joint, an artificial knee joint and artificial femoral diaphysis. The artificial femoral diaphysis is made up of a cylindrical column having a through longitudinal bore, and a rod, both said column and said rod being interlinked telescopically. The cylindrical column is inseparably linked to the artificial knee joint, while the rod is inseparably linked to the artificial hip joint at one of its ends and with the other end is fitted into the bore of the column, said other rod end carrying a threaded sleeve which engages a motion screw rotatably mounted in the column for the rod to travel with respect to the column.
Inventors
- 👤 Konstantin M. Sivash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:40
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/30; A61F2/32; A61F2/36; A61F2/3607; A61F2/38; A61F2/3836; A61F2/384; A61F2/3845; A61F2002/2825; A61F2002/30001; A61F2002/30316; A61F2002/30329; A61F2002/30405; A61F2002/30433; A61F2002/30535; A61F2002/30537; A61F2002/3055; A61F2002/30601; A61F2220/00; A61F2220/0025; A61F2220/0041; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023; A61F2310/00029
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
151 words
A device for functional restoration of an extremity, comprising: an artificial hip joint; an artificial knee joint; and an artificial femoral diaphysis for interconnecting said artificial hip joint and said artificial knee joint; said femoral diaphysis including a cylindrical column inseparably linked to said knee joint and having a longitudinal geometric axis, a through cylindrical bore provided in said column along the geometric axis thereof, a double-ended rod, one of said ends of said rod inseparably linking said rod to said hip joint, the other of said ends of said rod fitted in said bore of said column, a threaded sleeve fixed in position at the other end of said rod, a motion screw engageable with said threaded sleeve and rotatably mounted in said column for axially moving said rod with respect to said column upon rotation of said screw, whereby the length of said artificial femoral diaphysis can be adjusted.
Claim 2
Independent Claim
151 words
A device for functional restoration of an extremity, comprising: an artificial hip joint; an artificial knee joint; and an artificial femoral diaphysis for interconnecting said artificial hip joint and said artificial knee joint; said femoral diaphysis including a cylindrical column inseparably linked to said knee joint and having a longitudinal geometric axis, a through cylindrical bore provided in said column along the geometric axis thereof, a double-ended rod, one of said ends of said rod inseparably linking said rod to said hip joint, the other of said ends of said rod fitted in said bore of said column, a threaded sleeve fixed in position at the other end of said rod, a motion screw engageable with said threaded sleeve and rotatably mounted in said column for axially moving said rod with respect to said column upon rotation of said screw, whereby the length of said artificial femoral diaphysis can be adjusted.
Claim 3
Dependent Claim
45 words
A device as claimed in claim 1, wherein said motion screw is fitted in said column with the aid of a lockpin which passes through an annular groove formed in said screw and through a hole formed in said column and aligned with said groove.
Claim 4
Dependent Claim
27 words
A device as claimed in claim 1, wherein said motion screw has a socket to receive a key for the lengthwise adjustment of said artificial femoral diaphysis.
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) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-23 | 1990-11-22 | 1991-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-23 | 1994-11-22 | 1995-05-24 | $7700.00 | Window Closed / Lapsed |