US4706679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable monitor for an EEG head set
Assignee: Northrop Grumman Corp
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Filing: 1986-01-27
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Granted: 1987-11-17
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Expires: 2006-01-27
Abstract
Abstract The present invention includes an adjustable head set held in place on the back of a patient's head when the patient leans back against a chair head rest. The head set includes self-preparing disposable monitors that provide good contact with the patient's head without prior skin preparation. The monitors include a conductive tube containing conductive wires, the tips of which form a planar cushion surface for contacting the patient's head through a caratinaceous layer of skin. The monitors are held in adjustable holders that allow the contact force to be adjusted. The adjustable holders are mounted in holder slots of head set springs where the slots also allow adjustment of the placement of the monitors. The springs can include hinges for rotatably adjusting placement of the monitors. The disposable monitors are filled with an electrolyte solution using a disposable applicator including a puncturable film, punctured by a monitor when the electrolyte solution is being applied.
Inventors
- 👤 Albert L. Schmidt
- 👤 Gary W. Sherwin
- 👤 Kenneth K. Blackham
- 👤 John L. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:36
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/68; A61B5/6801; A61B5/6813; A61B5/6814; A61B2562/00; A61B2562/02; A61B2562/0209; A61B2562/0215; A61B2562/0217
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
30 words
A disposable monitor, comprising: a conductive tube; and conductive wires contacting and extending from said tube for contacting a patient, said wires being silver and said tube being silver coated.
Claim 2
Dependent Claim
30 words
A disposable monitor, comprising: a conductive tube; and conductive wires contacting and extending from said tube for contacting a patient, said wires being silver and said tube being silver coated.
Claim 3
Dependent Claim
38 words
A disposable monitor, comprising: a conductive tube; and conductive wires contacting and extending from said tube for contacting a patient, wire ends of said wires extending from said tube forming a planar contact surface for contacting the patient.
Claim 4
Dependent Claim
38 words
A disposable monitor, comprising: a conductive tube; and conductive wires contacting and extending from said tube for contacting a patient, wire ends of said wires extending from said tube forming a planar contact surface for contacting the patient.
Claim 5
Dependent Claim
53 words
A disposable monitor comprising: a conductive tube; and an adjustable holder comprising an externally threaded tube frictionally holding said conductive tube, said conductive tube extending from said threaded tube, a pair of nuts threadingly engaging the threaded tube and for adjusting said threaded tube and contact means for electrically contacting the conductive tube.
Claim 6
Dependent Claim
53 words
A disposable monitor comprising: a conductive tube; and an adjustable holder comprising an externally threaded tube frictionally holding said conductive tube, said conductive tube extending from said threaded tube, a pair of nuts threadingly engaging the threaded tube and for adjusting said threaded tube and contact means for electrically contacting the conductive tube.
Claim 7
Dependent Claim
75 words
A disposable monitor for an electroencephalographic head set used to obtain measurements from a patient's head in an evoked potential autorefractometry system, said monitor comprising: a tube; and a silver wire bundle frictionally engaging an interior of said tube where the wires in said bundle are twisted and said bundle extending from said tube to form a planar contact surface for contacting the patient's head at an end of said bundle extending from said tube.
Claim 8
Dependent Claim
75 words
A disposable monitor for an electroencephalographic head set used to obtain measurements from a patient's head in an evoked potential autorefractometry system, said monitor comprising: a tube; and a silver wire bundle frictionally engaging an interior of said tube where the wires in said bundle are twisted and said bundle extending from said tube to form a planar contact surface for contacting the patient's head at an end of said bundle extending from said tube.
Claim 9
Dependent Claim
26 words
A monitor as recited in claim 4, wherein said tube is non-conductive and said monitor further comprises a lead wire in electrical contact with said bundle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-16 | 1991-05-18 | 1991-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-16 | 1995-05-18 | 1995-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-16 | 1999-05-18 | 1999-11-17 | $7700.00 | Window Closed / Lapsed |