US4066065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil structure for electromagnetic therapy
Assignee: Individual
•
Filing: 1976-05-24
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Granted: 1978-01-03
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Expires: 1996-05-24
Abstract
Abstract At least one layer of windings is so arranged to enclose an open space for treatment of a portion of a patient, for example the thorax, or a limb, shaped so that it encloses an open space which is elliptical or oval. The space enclosed thus is an oval or elliptical cylinder and, in a form suitable for treatment of the hip joint, can be an inclined cylinder. The winding is surrounded by a protective layer, for example a polyester resin which additionally can be shaped to provide for a support surface.
Inventors
- 👤 Werner Kraus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:00
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/56; A; A61; A61N; A61N1/00; A61N1/40; A61N2/00; A61N2/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
107 words
Coil structure for electromagnetic therapy comprising at least one layer of electrically conductive windings (12) and terminal means (14) connected to the windings to connect the windings to a source (22) of alternating current, said windings enclosing an open space for treatment of a portion of the body of a patient by generating a low-frequency electromagnetic field upon connection of the windings to said source (22), wherein said windings are shaped to form an elliptical cylinder the end faces of said cylinder being inclined with respect to the central axis of said cylinder, such that the space enclosed thereby is oval, or essentially elliptical in cross section.
Claim 2
Dependent Claim
107 words
Coil structure for electromagnetic therapy comprising at least one layer of electrically conductive windings (12) and terminal means (14) connected to the windings to connect the windings to a source (22) of alternating current, said windings enclosing an open space for treatment of a portion of the body of a patient by generating a low-frequency electromagnetic field upon connection of the windings to said source (22), wherein said windings are shaped to form an elliptical cylinder the end faces of said cylinder being inclined with respect to the central axis of said cylinder, such that the space enclosed thereby is oval, or essentially elliptical in cross section.
Claim 3
Dependent Claim
32 words
Structure according to claim 1, wherein a jacketing mass (13) is provided, the windings (12) being embedded in the jacketing mass, the jacketing mass providing a smooth surface and having rounded edges.
Claim 4
Dependent Claim
17 words
Structure according to claim 2, wherein the jacketing mass is formed with a ridged support surface (18).
Claim 5
Dependent Claim
22 words
Structure according to claim 1, wherein the end faces formed by the windings of the inclined elliptical cylinder are in parallel planes.
Claim 6
Dependent Claim
28 words
Structure according to claim 4, wherein the angle (α) of inclination of the end faces with respect to the central axis is in the order of about 27°.
Claim 7
Dependent Claim
28 words
Structure according to claim 1, wherein the angle (α) of inclination of the end faces with respect to the central axis is in the order of about 27°.
Claim 8
Dependent Claim
54 words
Coil structure according to claim 1 adapted for treatment of the human hip joint wherein the coil dimension of the oval or essentially elliptical cross-sectional space enclosed by the coil has a larger diametrical dimension (D3) in the order of about 40cm and a smaller diametrical dimension (d3) in the order of about 25cm.
Claim 9
Dependent Claim
45 words
coil structure according to claim 7, wherein the end faces of the cylinder formed by the windings are in essentially parallel planes, and the angle (α) of inclination of the end faces with respect to the central axis is in the order of about 27°.
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) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |