US3804080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for obtaining measurement at or within parts of the human body
Assignee: Hewlett Packard GmbH Germany
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Filing: 1972-08-09
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Granted: 1974-04-16
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Expires: 1992-08-09
Abstract
Abstract A measuring head is described for mounting at or within parts of the human body, especially for obtaining ECG signals from a fetus. The measuring head includes electrodes separated from each other and connected to separate leads, in the form of two pointed opposite catchers mounted in an isolating carrier. A cannula may be provided so that liquid medicine or an electrolyte can be supplied to the body at the point of measurement.
Inventors
- 👤 H Ruttgers
- 👤 H Lussem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:40
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/43; A61B5/4306; A61B5/4343; A61B5/4362; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/283; A61B5/288
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
90 words
An apparatus for obtaining measurement signals at or within cavities of the human body, comprising a carrier formed from an electrically insulating material; a spiral catcher supported by said carrier, said catcher comprising two electrodes in the form of two catcher arms which are electrically isolated from each other and positioned to extend beyond the carrier, one end of each arm being connectable to an electrical signal lead and the other end of each arm terminating in a pointed shape, the pointed ends being displaced 180* relative to each other.
Claim 2
Independent Claim
90 words
An apparatus for obtaining measurement signals at or within cavities of the human body, comprising a carrier formed from an electrically insulating material; a spiral catcher supported by said carrier, said catcher comprising two electrodes in the form of two catcher arms which are electrically isolated from each other and positioned to extend beyond the carrier, one end of each arm being connectable to an electrical signal lead and the other end of each arm terminating in a pointed shape, the pointed ends being displaced 180* relative to each other.
Claim 3
Dependent Claim
38 words
The apparatus of claim 1, including at least one tube positioned within the carrier, one end of said tube protruding beyond the end of the carrier, the other end of said tube being connectable to a liquid line.
Claim 4
Dependent Claim
25 words
The apparatus of claim 2 wherein the tube protruding beyond the end of the carrier is pointed and is positioned centrally between the spiral arms.
Claim 5
Dependent Claim
20 words
The apparatus of claim 3, wherein the tube protruding beyond the carrier includes a portion which is adjustable in length.
Claim 6
Dependent Claim
23 words
The apparatus of claim 2 wherein one of the catcher arms is formed from a tube, and is connectable to a liquid line.
References Cited (Backward Citations)
SU238074A1
Cited
DE1143937B
Cited
US3057356A
Cited
US3078850A
Cited
US3533403A
Cited
US3472234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-15 | 1977-10-15 | 1978-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-15 | 1981-10-15 | 1982-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-15 | 1985-10-15 | 1986-04-16 | $7700.00 | Window Closed / Lapsed |