US3682162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined electrode and hypodermic syringe needle
Assignee: Wellcome Foundation Ltd
•
Filing: 1969-12-04
•
Granted: 1972-08-08
•
Expires: 1989-12-04
Abstract
Abstract A hypodermic needle for connection with a hypodermic syringe attachment and which comprises at least two electrode elements, an inner one of which conveys fluid as a conventional hypodermic needle and the two of which combine as a probe having a tip-end stimulation zone when connected with an electrical supply.
Inventors
- 👤 John E Colyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:49
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/0502; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/279; A61B5/294; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/42; A61M5/427; A61N1/18; A61N1/32; A61N1/36; A61N1/36014; A61N1/36021; A61N1/36017
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
69 words
A hypodermic needle comprising two hollow tubular electrodes, one electrode being disposed within the other, means electrically insulating the outer electrode from the inner electrode, means disposed on one of the electrodes for attachment to a dispenSing means, electrically conducting means on each electrode for connection to a power supply, and each electrode having a lower tip end, the tip ends of said electrodes terminating in a common plane.
Claim 2
Dependent Claim
69 words
A hypodermic needle comprising two hollow tubular electrodes, one electrode being disposed within the other, means electrically insulating the outer electrode from the inner electrode, means disposed on one of the electrodes for attachment to a dispenSing means, electrically conducting means on each electrode for connection to a power supply, and each electrode having a lower tip end, the tip ends of said electrodes terminating in a common plane.
Claim 3
Dependent Claim
16 words
The hypodermic needle as claimed in claim 1 wherein said inner and outer electrodes are coaxial.
Claim 4
Dependent Claim
36 words
The hypodermic needle as claimed in claim 1 including at least one further electrode located within the insulating means between the inner and outer electrodes, and means electrically connecting the further electrode with an external apparatus.
Claim 5
Dependent Claim
17 words
The hypodermic needle as claimed in claim 3 wherein said further electrode comprises a fine wire electrode.
Claim 6
Dependent Claim
39 words
The hypodermic needle as claimed in claim 1 wherein the lower tip end of both the inner and outer electrodes terminates in a bevelled plane, with the inner and outer electrodes in said plane defining an intermediate stimulation zone.
Claim 7
Dependent Claim
36 words
The hypodermic needle as claimed in claim 1 wherein the inner and outer electrodes both terminate in upper respective hub portions, with the hub portion of the inner electrode fitting within that of the outer electrode.
Claim 8
Dependent Claim
24 words
The hypodermic needle as claimed in claim 1 including a molded sleeve of insulating material covering the needle over a portion of its length.
Claim 9
Dependent Claim
82 words
A hypodermic needle comprising two hollow tubular electrodes, one of said electrodes being disposed within the other electrode in coaxial relationship, means electrically insulating the outer electrode from the inner electrode, said inner electrode having an upper hub portion, means for attaching the upper hub portion to a dispensing means, electrical conductor means on each electrode for connection to a power supply, each electrode having a lower tip end, and the lower tip ends of said electrodes terminating in a common plane.
Claim 10
Dependent Claim
82 words
A hypodermic needle comprising two hollow tubular electrodes, one of said electrodes being disposed within the other electrode in coaxial relationship, means electrically insulating the outer electrode from the inner electrode, said inner electrode having an upper hub portion, means for attaching the upper hub portion to a dispensing means, electrical conductor means on each electrode for connection to a power supply, each electrode having a lower tip end, and the lower tip ends of said electrodes terminating in a common plane.
References Cited (Backward Citations)
US2516882A
Cited
US3060923A
Cited
US3087486A
Cited
US3078850A
Cited
US3224436A
Cited
US3313293A
Cited
US3295514A
Cited
US3568660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |