Patent DE320872C successfully refreshed from Google Patents.
US3786817A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for aiding severed nerves to join
Assignee: Individual
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Filing: 1972-06-01
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Granted: 1974-01-22
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Expires: 1992-06-01
Abstract
Abstract Method and apparatus in which severed nerve ends are placed inside a tube which aligns the nerve ends and guides them to promote joining of the nerve ends. An ambience may be provided inside the tube which further promotes joining of the nerve ends.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:23
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/1128; A61B17/30; A61B2017/306; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30108; A61F2002/30199; A61F2002/30224; A61F2002/30235; A61F2230/00; A61F2230/0063; A61F2230/0069
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
108 words
A method for aiding severed nerves to join, comprising the steps of: a. placing the severed nerve ends in proximity to each other inside a tube having open ends and having an inlet and an outlet between said open ends, b. sealing said open ends of said tube where said nerve ends enter the same, c. introducing fluid through said inlet into said tube about said nerve ends therein and withdrawing fluid from said outlet to provide a healing ambience in said tube, and d. sealing said inlet and said outlet to trap said fluid in said tube for aiding the nerve ends to join in said tube.
Claim 2
Independent Claim
108 words
A method for aiding severed nerves to join, comprising the steps of: a. placing the severed nerve ends in proximity to each other inside a tube having open ends and having an inlet and an outlet between said open ends, b. sealing said open ends of said tube where said nerve ends enter the same, c. introducing fluid through said inlet into said tube about said nerve ends therein and withdrawing fluid from said outlet to provide a healing ambience in said tube, and d. sealing said inlet and said outlet to trap said fluid in said tube for aiding the nerve ends to join in said tube.
Claim 3
Dependent Claim
30 words
The method as claimed in claim 1 including the additional step after step (d) of rupturing said tube and removing the same from the nerve ends after they have joined.
Claim 4
Dependent Claim
38 words
The method as claimed in claim 1 in which said inlet and said outlet have metal tips, and said step of sealing said inlet and outlet is carried out by squeezing said metal tips to close the same.
Claim 5
Dependent Claim
19 words
The method as claimed in claim 3 in which said squeezing of said tips cold welds said tips closed.
Claim 6
Dependent Claim
78 words
Apparatus for aiding severed nerves to join, said apparatus comprising a tube having opposite open ends into which the nerve ends can be inserted, the inside diameter of the tube being slightly greater than the diameter of the nerve ends, an inlet leading into a side of said tube, and an outlet leading out from a side of said tube, and means to supply fluid into said tube through said inlet and to withdraw fluid through said outlet.
Claim 7
Dependent Claim
78 words
Apparatus for aiding severed nerves to join, said apparatus comprising a tube having opposite open ends into which the nerve ends can be inserted, the inside diameter of the tube being slightly greater than the diameter of the nerve ends, an inlet leading into a side of said tube, and an outlet leading out from a side of said tube, and means to supply fluid into said tube through said inlet and to withdraw fluid through said outlet.
Claim 8
Dependent Claim
25 words
The apparatus as claimed in claim 5 in which said inlet and said outlet have metal tips which can be closed by squeezing the same.
Claim 9
Dependent Claim
43 words
The apparatus as claimed in claim 5 in which said means to supply fluid into said inlet and means to withdraw fluid from said outlet includes a source of non-oxidizing gas and tubing connected to said source and to said inlet and outlet.
Claim 10
Dependent Claim
13 words
The apparatus as claimed in claim 8 in which said gas is nitrogen.
Claim 11
Dependent Claim
28 words
The apparatus as claimed in claim 8 in which said inlet and said outlet have portions capable of being squeezed closed to trap said gas in said tube.
Claim 12
Dependent Claim
70 words
Apparatus for aiding severed nerves to join comprising a tube having opposite open ends into which the nerve ends can be inserted, the inside diameter of the tube being slightly greater than the diameter of the nerve ends, an inlet leading into said tube at one side thereof between said opposite open ends, and an outlet leading into said tube at said one side thereof between said opposite open ends.
Claim 13
Dependent Claim
70 words
Apparatus for aiding severed nerves to join comprising a tube having opposite open ends into which the nerve ends can be inserted, the inside diameter of the tube being slightly greater than the diameter of the nerve ends, an inlet leading into said tube at one side thereof between said opposite open ends, and an outlet leading into said tube at said one side thereof between said opposite open ends.
Claim 14
Dependent Claim
27 words
Apparatus according to claim 10, wherein said inlet and said outlet extend transverse to said tube and are substantially aligned with each other longitudinally of the tube.
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) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |