US3833002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for aiding severed nerves to join
Assignee: Individual
•
Filing: 1973-09-10
•
Granted: 1974-09-03
•
Expires: 1993-09-10
Abstract
Abstract A surgical tube for aiding severed nerves to join, composed primarily of a slow-dissolving material and having small, discrete areas which dissolve faster. These discrete areas may be provided by particles of a different, faster-dissolving material that are embedded in the tube wall, or by a greatly reduced thickness of the tube wall itself at these areas.
Inventors
- 👤 J Palma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:10
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/1128; A61B2017/00004; A61B17/30; A61B2017/306; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/30004; A61F2002/30032; A61F2002/30108; A61F2002/30199; A61F2002/30224; A61F2002/30235; A61F2230/00; A61F2230/0063; A61F2230/0069; A61F2250/00; A61F2250/0014; A61F2250/003
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
107 words
Apparatus for aiding severed nerves to join comprising a tube having open opposite ends into which the nerve ends can be inserted, said tube being composed principally of a material that dissolves slowly in the body and having small discrete areas therein which dissolve in the body substantially faster than the remainder of the tube to provide small openings for the passage of body fluids into contact with the nerve ends inside the tube, said small, discrete areas being provided by embedded bodies of a different material than the principal material of the tube which dissolves in the body faster than the principal material of the tube.
Claim 2
Dependent Claim
107 words
Apparatus for aiding severed nerves to join comprising a tube having open opposite ends into which the nerve ends can be inserted, said tube being composed principally of a material that dissolves slowly in the body and having small discrete areas therein which dissolve in the body substantially faster than the remainder of the tube to provide small openings for the passage of body fluids into contact with the nerve ends inside the tube, said small, discrete areas being provided by embedded bodies of a different material than the principal material of the tube which dissolves in the body faster than the principal material of the tube.
Claim 3
Dependent Claim
39 words
Apparatus according to claim 1, wherein said tube has a transverse stem leading into its interior between its ends, said stem having small, discrete areas therein which dissolve in the body substantially faster than the remainder of the tube.
Claim 4
Dependent Claim
35 words
Apparatus according to claim 2, wherein said small, discrete areas in said stem are provided by embedded bodies of a different material which dissolves in the body faster than the principal material of the tube.
Claim 5
Dependent Claim
14 words
Apparatus according to claim 2, wherein said tube and stem together are substantially T-shaped.
Claim 6
Dependent Claim
14 words
Apparatus according to claim 2, wherein said tubE and stem together are substantially Y-shaped.
Claim 7
Dependent Claim
59 words
Apparatus according to claim 1, wherein said tube has a transverse inlet stem and a transverse outlet stem spaced from said inlet stem along the length of the tube and both communicating with the interior of the tube, said stems both having small discrete areas therein which dissolve in the body substantially faster than the remainder of the tube.
Claim 8
Dependent Claim
120 words
In a surgical tube for aiding severed nerves to join together, said tube being dimensioned to receive the nerve ends in its opposite ends and throughout most of its extent having a wall thickness and a composition effective to prevent the tube from completely dissolving in the body for several days, the improvement which comprises: means providing small, discrete areas in the tube wall which dissolve in the body substantially faster than the remainder of the tube to leave small openings permitting body fluids to pass into contact with the nerve ends inside the tube, said last mentioned means comprising small, discrete web portions of the tube wall which are substantially thinner radially than the remainder of the tube wall.
Claim 9
Dependent Claim
120 words
In a surgical tube for aiding severed nerves to join together, said tube being dimensioned to receive the nerve ends in its opposite ends and throughout most of its extent having a wall thickness and a composition effective to prevent the tube from completely dissolving in the body for several days, the improvement which comprises: means providing small, discrete areas in the tube wall which dissolve in the body substantially faster than the remainder of the tube to leave small openings permitting body fluids to pass into contact with the nerve ends inside the tube, said last mentioned means comprising small, discrete web portions of the tube wall which are substantially thinner radially than the remainder of the tube wall.
References Cited (Backward Citations)
US2127903A
Cited
GB591509A
Cited
US3587586A
Cited
US3526228A
Cited
US3683926A
Cited
US3786817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |