US5085626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Physiotherapeutic apparatus provided for producing a magnetic field to be used as a therapeutic means
Assignee: Alsthom International SA
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Filing: 1989-12-05
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Granted: 1992-02-04
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Expires: 2009-12-05
Abstract
Abstract An apparatus for physiotherapeutic treatment of cells and tissues in a living body by directly inducing the magnetic energy of a magnetic field into the body in order to cure or stimulate repair of the treated body part. The magnetic field is generated by an induction coil having a solenoid with a substantially linear core fixed therein. The coil has a length of at least twice the length of the core diameter. The apparatus further comprises an electric current generator for feeding the coil.
Inventors
- 👤 Guy Frey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:31
CPC Classifications
A; A61; A61N; A61N2/00; A61N2/004; A61N2/008; A61N2/02
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
108 words
A physiotherapeutic apparatus comprising means for generating a concentrated magnetic field to be directly induced for therapeutic purposes into a living body to be treated, said magnetic field generating means including an induction coil having a solenoid and a substantially straight core fixed inside said solenoid, said coil having a length at least twice the diameter of the core, the magnetic field having poles located, respectively, at opposite ends of the core; an electric current generator connected to said induction coil; and means for orienting said coil to selectively place either one of said poles of the magnetic field in direct contact with the body to be treated.
Claim 2
Dependent Claim
108 words
A physiotherapeutic apparatus comprising means for generating a concentrated magnetic field to be directly induced for therapeutic purposes into a living body to be treated, said magnetic field generating means including an induction coil having a solenoid and a substantially straight core fixed inside said solenoid, said coil having a length at least twice the diameter of the core, the magnetic field having poles located, respectively, at opposite ends of the core; an electric current generator connected to said induction coil; and means for orienting said coil to selectively place either one of said poles of the magnetic field in direct contact with the body to be treated.
Claim 3
Dependent Claim
15 words
An apparatus as claimed in claim 1, wherein said solenoid comprises at least 1,000 windings.
Claim 4
Dependent Claim
22 words
An apparatus as claimed in claim 1, wherein said core comprises a steel core having a carbon content of at most 0.40%.
Claim 5
Dependent Claim
21 words
An apparatus as claimed in claim 1, wherein said core comprises a material having a relative magnetic permeability less than 1,200.
Claim 6
Dependent Claim
52 words
An apparatus as claimed in claim 1, wherein said core comprises an inner core and an outer surrounding layer, said inner core comprises a first material, said outer surrounding layer comprises a second material, said first material having a relative magnetic permeability higher than the relative magnetic permeability of said second material.
Claim 7
Dependent Claim
19 words
An apparatus as claimed in claim 1, wherein said core comprises a cold-drawn mild steel or a copperized steel.
Claim 8
Dependent Claim
17 words
An apparatus as claimed in claim 1, wherein said core comprises an assembly of copperized steel rods.
Claim 9
Dependent Claim
23 words
An apparatus as claimed in claim 1, wherein said means for orienting said coil comprises a plastic box which encloses said induction coil.
Claim 10
Dependent Claim
40 words
An apparatus as claimed in claim 1, wherein said electric current generator comprises an alternating current generator for generating an alternating current, said electric current generator having means for varying one of the frequency and the intensity of the current.
Claim 11
Dependent Claim
35 words
An apparatus as claimed in claim 1, wherein said electric current generator comprises a direct current generator for generating a direct current, said electric current generator having means for varying the intensity of the current.
Claim 12
Dependent Claim
27 words
An apparatus as claimed in claim 1, wherein said electric current generator includes means for generating a pulsed current and for varying the frequency of the current.
Claim 13
Dependent Claim
16 words
An apparatus as claimed in claim 1, wherein said electric current generator includes a polarity selector.
Claim 14
Dependent Claim
49 words
An apparatus as claimed in claim 1, wherein said solenoid has a length of about 32 mm and comprises approximately 2,000 windings, each said winding having a diameter of about 0.25 mm, said core having a length of about 38 mm and having a diameter of about 10 mm.
Claim 15
Dependent Claim
59 words
An apparatus as claimed in claim 13, wherein said means for orienting said coil comprises a plastic box which encloses said induction coil, a band attaching said plastic box to a body to be treated, and a belt attached to said plastic box and to said band for enabling said plastic box to rotate with respect to said belt.
Claim 16
Dependent Claim
59 words
An apparatus as claimed in claim 1, wherein said means for orienting said coil comprises a plastic box which encloses said induction coil, a band attaching said plastic box to a body to be treated, and a belt attached to said plastic box and to said band for enabling said plastic box to rotate with respect to said belt.
Claim 17
Dependent Claim
29 words
An apparatus as claimed in claim 1, wherein said electric current generator includes means for generating a pulsed current and for varying the frequency and intensity of the current.
Claim 18
Dependent Claim
87 words
An induction coil for use in a physiotherapeutic apparatus having means for generating a concentrated magnetic field, said coil comprising a solenoid and a substantially straight core fixed inside said solenoid, said coil having a diameter and a length which is at least twice the core diameter; the magnetic field having poles located, respectively, at opposite ends of said core; and means for orienting said coil to selectively place either one of said poles of the magnetic field in direct contact with the body to be treated.
Claim 19
Dependent Claim
87 words
An induction coil for use in a physiotherapeutic apparatus having means for generating a concentrated magnetic field, said coil comprising a solenoid and a substantially straight core fixed inside said solenoid, said coil having a diameter and a length which is at least twice the core diameter; the magnetic field having poles located, respectively, at opposite ends of said core; and means for orienting said coil to selectively place either one of said poles of the magnetic field in direct contact with the body to be treated.
Claim 20
Dependent Claim
50 words
An induction coil as claimed in claim 17, wherein said solenoid has a length of about 32 mm and comprises approximately 2,000 windings, each said winding having a diameter of about 0.25 mm, said core having a length of about 38 mm and having a diameter of about 10 mm.
Claim 21
Dependent Claim
60 words
An induction coil as claimed in claim 18, wherein said means for orienting said coil comprises a plastic box which encloses said induction coil, a band attaching said plastic box to a body to be treated, and a belt attached to said plastic box and to said band for enabling said plastic box to rotate with respect to said belt.
Claim 22
Dependent Claim
60 words
An induction coil as claimed in claim 17, wherein said means for orienting said coil comprises a plastic box which encloses said induction coil, a band attaching said plastic box to a body to be treated, and a belt attached to said plastic box and to said band for enabling said plastic box to rotate with respect to said belt.
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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) | 1995-02-03 | 1995-08-05 | 1996-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-03 | 1999-08-05 | 2000-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-03 | 2003-08-05 | 2004-02-04 | $7700.00 | Window Closed / Lapsed |