US4784142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methodology for electronic dental analgesia
Assignee: PAIN SUPPRESSION LABS Inc A CORP OF NEW JERSEY
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Filing: 1986-11-04
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Granted: 1988-11-15
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Expires: 2006-11-04
Abstract
Abstract Dental electronic analgesia apparatus and methodology employs a transutaneous electronic wave to suppress perceived pain during trauma associated with dental procedures. During a pre-treatment phase, a first electrode is placed over the right temporal area of the patient's head and a second electrode on the left temporal area of a patient's head. In addition, during the operative phase, an additional electrode is placed on the buccal side of the gum adjacent the work area, and optional additional electrodes are disposed on the web of the ipsalateral hand and/or on the web of the contralateral hand. An electronic current wave comprising relatively high frequency pulses with a low frequency amplitude modulation is then applied between the first to the second electrodes. The apparatus of the instant invention has been found to block pain in most subjects with a low level current without any chemical intervention, or with a reduced dosage of local anesthesia.
Inventors
- 👤 Saul Liss
- 👤 Bernard Liss
- 👤 Samuel Krakower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:54
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/36014; A61N1/36021; A61N1/326
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
64 words
A method for suppressing pain otherwise associated with a dental procedure in the subject's oral cavity including the steps of securing a first electrode at one side of the head and a second electrode at the opposite side of the head and supplying an electrical wave comprising pulses of high frequency with a low frequency amplitude modulation to said first and said second electrodes.
Claim 2
Independent Claim
64 words
A method for suppressing pain otherwise associated with a dental procedure in the subject's oral cavity including the steps of securing a first electrode at one side of the head and a second electrode at the opposite side of the head and supplying an electrical wave comprising pulses of high frequency with a low frequency amplitude modulation to said first and said second electrodes.
Claim 3
Dependent Claim
26 words
The method of claim 2, in which said first and second electrodes are respectively placed over the right and left temporal areas of the patient's head.
Claim 4
Dependent Claim
43 words
The method of claim 1, wherein the frequency of said high frequency electrical wave is in the range of 12-20 khz, wherein said low frequency modulation is in the range 8-20 hz, and wherein said electrical wave does not exceed about 4 milliamperes.
Claim 5
Dependent Claim
12 words
The method as in claim 3, wherein said amplitude modulation is non-symmetrical.
Claim 6
Independent Claim
71 words
A method for suppressing pain otherwise associated with a dental procedure in a subject's oral cavity including the steps of securing a first electrode set proximate to the oral cavity of a patient and a second electrode set in an area outside of the oral cavity area, and supplying an electrical wave comprising pulses of high frequency with a low frequency amplitude modulation to said first and said second electrode set.
Claim 7
Independent Claim
71 words
A method for suppressing pain otherwise associated with a dental procedure in a subject's oral cavity including the steps of securing a first electrode set proximate to the oral cavity of a patient and a second electrode set in an area outside of the oral cavity area, and supplying an electrical wave comprising pulses of high frequency with a low frequency amplitude modulation to said first and said second electrode set.
Claim 8
Dependent Claim
21 words
The method of claim 5, wherein the electrode secured proximate to the oral cavity area includes at least one intraoral electrode.
Claim 9
Dependent Claim
42 words
The method of claim 5, wherein the frequency of said high frequency electrical wave is in the range 12-20 khz, wherein said low frequency modulation is in the range 8-20 hz, and wherein said electrical wave does not exceed about 4 milliamperes.
Claim 10
Dependent Claim
12 words
The method as in claim 7, wherein said amplitude modulation is non-symmetrical.
Claim 11
Independent Claim
83 words
A method for suppressing pain otherwise associated with a dental procedure in a subject's oral cavity including the steps of securing a first electrode at a first side of the head and a second electrode at the buccal side of the gum of a subject adjacent the work area, securing a third electrode to a second side of the head, and supplying an electrical wave comprising pulses of high frequency with a low frequency amplitude modulation to said first, second and third electrodes.
Claim 12
Independent Claim
83 words
A method for suppressing pain otherwise associated with a dental procedure in a subject's oral cavity including the steps of securing a first electrode at a first side of the head and a second electrode at the buccal side of the gum of a subject adjacent the work area, securing a third electrode to a second side of the head, and supplying an electrical wave comprising pulses of high frequency with a low frequency amplitude modulation to said first, second and third electrodes.
Claim 13
Dependent Claim
43 words
The method as in claim 9, wherein the frequency of said high frequency electrical wave is in the range 12-20 khz, wherein said low frequency modulation is in the range 8-20 hz, and wherein said electrical wave does not exceed about 4 milliamperes.
Claim 14
Dependent Claim
12 words
The method as in claim 10, wherein said amplitude modulation is non-symmetrical.
Claim 15
Dependent Claim
30 words
A method as in claim 9, further comprising the step of securing a further electrode, connected in common to said third electrode, on the web of the subject's ipsalateral hand.
Claim 16
Dependent Claim
43 words
A method as in claim 12, wherein the frequency of said high frequency electrical wave is in the range 12-20 khz, wherein said low frequency modulation is in the range 8-20 hz, and wherein said electrical wave does not exceed about 4 milliamperes.
Claim 17
Dependent Claim
12 words
A method as in claim 13, wherein said amplitude modulation is non-symmetrical.
Claim 18
Dependent Claim
30 words
A method as in claim 9, further comprising the step of securing a further electrode connected in common to said third electrode, on the web of the subject's contralateral hand.
Claim 19
Dependent Claim
43 words
A method as in claim 15, wherein the frequency of said high frequency electrical wave is in the range 12-20 khz, wherein said low frequency modulation is in the range 8-20 hz, and wherein said electrical wave does not exceed about 4 milliamperes.
Claim 20
Dependent Claim
12 words
A method as in claim 16, wherein said amplitude modulation in non-symmetrical.
Claim 21
Dependent Claim
30 words
A method as in claim 12, further comprising the step of securing an additional electrode, connected in common to said third electrode, on the web of the subject's contralateral hand.
Claim 22
Dependent Claim
43 words
A method as in claim 18, wherein the frequency of said high frequency electrical wave is in the range 12-20 khz, wherein said low frequency modulation is in the range 8-20 hz, and wherein said electrical wave does not exceed about 4 milliamperes.
Claim 23
Dependent Claim
12 words
A method as in claim 19, wherein said amplitude modulation is non-symmetrical.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-11-15 | 1992-05-16 | 1992-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-15 | 1996-05-16 | 1996-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-15 | 2000-05-16 | 2000-11-15 | $7700.00 | Window Closed / Lapsed |