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US4667677A Expired / Lapsed US ⏱️ 0.0 years remaining

Corona discharge thermotherapy technique

Assignee: ADM Tronics Unlimited Inc
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Filing: 1986-04-28
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Granted: 1987-05-26
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Expires: 2006-04-28
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Abstract

Abstract A non-invasive thermotherapy technique for relieving pain and obtaining other beneficial effects. In this technique, the skin surface of a patient overlying a problem region such as an arthritic joint is scanned by a corona discharge beam emanating from a discharge electrode to which is applied periodic bursts of radio-frequency energy whose repetition rate is at a sonic frequency and whose peak amplitude is such as to cause a corona discharge. This energy is derived from a radio-frequency carrier generator whose operating frequency is preferably in the range of 100 to 300 KHz. This carrier is overmodulated in amplitude at a sonic rate, whose frequency is preferably in the 3000 to 5000 Hz range, so that the carrier is interrupted periodically to produce the bursts.

Inventors

  • 👤 Alfonso Di Mino

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 22:32
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 88 words
A non-invasive thermotherapy technique for relieving pain in a problem region of the human body and obtaining salutary effects, said technique comprising the steps of: A. continuously generating a radio-frequency carrier; B. overmodulating said carrier with a sonic frequency signal to produce periodic bursts of radio-frequency energy whose repetition rate is determined by the sonic frequency; C. applying said bursts to a discharge electrode to produce a corona discharge beam; and D. directing said beam to impinge on the skin surface of a patient overlying the problem region.
Claim 2
Dependent Claim 88 words
A non-invasive thermotherapy technique for relieving pain in a problem region of the human body and obtaining salutary effects, said technique comprising the steps of: A. continuously generating a radio-frequency carrier; B. overmodulating said carrier with a sonic frequency signal to produce periodic bursts of radio-frequency energy whose repetition rate is determined by the sonic frequency; C. applying said bursts to a discharge electrode to produce a corona discharge beam; and D. directing said beam to impinge on the skin surface of a patient overlying the problem region.
Claim 3
Dependent Claim 17 words
A technique as set forth in claim 1, wherein said carrier is in the low-frequency radio range.
Claim 4
Dependent Claim 16 words
A technique as set forth in claim 2, wherein said carrier frequency is about 200,000 Hz.
Claim 5
Dependent Claim 21 words
A technique as set forth in claim 1, wherein said sonic frequency lies in the range of 3000 to 5000 Hz.
Claim 6
Dependent Claim 24 words
A technique as set forth in claim 1, wherein said radio-frequency carrier is produced by generating a carrier whose power is about 10 watts.
Claim 7
Dependent Claim 28 words
A technique as set forth in claim 1, wherein said bursts are applied to an electrode which is a pointed wire to create a single corona discharge beam.
Claim 8
Dependent Claim 29 words
A technique as set forth in claim 1, wherein said bursts are applied to an electrode constituted by a cluster of pointed wires to create multiple corona discharge beams.

References Cited (Backward Citations)

SU266086A1 Cited
GB1156153A Cited
US3563246A Cited
DE2907013A1 Cited
US4572194A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-05-25 1990-11-24 1991-05-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-05-25 1994-11-24 1995-05-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-05-25 1998-11-24 1999-05-26 $7700.00 Window Closed / Lapsed

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