US4073289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of male contraception for domestic mammals having a scrotum
Assignee: Individual
•
Filing: 1976-04-30
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Granted: 1978-02-14
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Expires: 1996-04-30
Abstract
Abstract A method of suppressing spermatogenesis in domestic mammals having a scrotum by applying ultrasonic vibrations to the testes in said scrotum. More particularly, a method of suppressing spermatogenesis by sonicating the testes in said scrotum by immersing the scrotum in an ultrasonic coupling agent and applying ultrasonic vibrations thereto.
Inventors
- 👤 Mostafa S. Fahim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:08
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/02; A61D; A61D1/00; A61D1/06; A61H; A61H23/00; A61H23/02; A61H23/0245
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
60 words
A method of suppressing spermatogenesis in domestic animals, excluding humans, having scrotal testes which comprises applying continuous ultrasonic vibrations selectively only to the testes of said animal at an effective power level and at a frequency sufficient to penetrate said scrotal testes and for a sufficient time to temporarily or permanently suppress spermatogenesis while causing the subject substantially no discomfort.
Claim 2
Independent Claim
60 words
A method of suppressing spermatogenesis in domestic animals, excluding humans, having scrotal testes which comprises applying continuous ultrasonic vibrations selectively only to the testes of said animal at an effective power level and at a frequency sufficient to penetrate said scrotal testes and for a sufficient time to temporarily or permanently suppress spermatogenesis while causing the subject substantially no discomfort.
Claim 3
Dependent Claim
53 words
The method of suppressing spermatogenesis in domestic animals, excluding humans, having scrotal testes according to claim 1 wherein the continuous ultrasonic vibrations are transmitted by an ultrasound applicator connected to a continuous ultrasound generator, said continuous vibrations transmitted to said scrotal testes through a coupling agent in which said scrotal testes are immersed.
Claim 4
Dependent Claim
33 words
The method of suppressing spermatogenesis in domestic animals, excluding humans, having scrotal testes according to claim 2 wherein the coupling agent is contained in a vessel accommodating the scrotal testes to be sonicated.
Claim 5
Dependent Claim
23 words
The method of suppressing spermatogenesis in domestic animals, excluding humans, having scrotal testes according to claim 3 wherein the coupling agent is water.
Claim 6
Dependent Claim
32 words
The method of suppressing spermatogenesis in domestic animals, excluding humans, having scrotal testes according to claim 3 wherein the ultrasonic vibrations have a frequency between about 500 KHZ and about 5000 KHZ.
Claim 7
Dependent Claim
38 words
The method of suppressing spermatogenesis in domestic animals, excluding humans, having scrotal testes according to claim 5 wherein the effective power level of the ultrasound applicator is between about 0.25 watt/cm 2 and about 3 watt/cm 2 .
Claim 8
Dependent Claim
38 words
The method of suppressing spermatogenesis in domestic animals, excluding humans, having scrotal testes according to claim 6 wherein the effective power level of the ultrasound applicator is between about 0.5 watt/cm 2 and about 2 watt/cm 2 .
Claim 9
Dependent Claim
38 words
The method of suppressing spermatogenesis in domestic animals, excluding humans, having scrotal testes according to claim 7 wherein the effective power level of the ultrasound applicator is between about 0.5 watt/cm 2 and about 1 watt/cm 2 .
Claim 10
Dependent Claim
29 words
The method of suppressing spermatogenesis in domestic animals, excluding humans, having scrotal testes according to claim 8 wherein the time is between about 3 min. and about 15 min.
Claim 11
Dependent Claim
50 words
The method of suppressing spermatogenesis in domestic animals, excluding humans, having scrotal testes according to claim 9 wherein the coupling agent is water and the ultrasonic vibrations have a frequency of 1100 KHZ ± 10 KHZ, the effective power level is 1 watt/cm 2 and the time is 10 min.
Claim 12
Dependent Claim
39 words
The method of suppressing spermatogenesis in domestic animals, excluding humans, having scrotal testes according to claim 10 wherein the effectiveness of the method is monitored by a sperm count, said method being repeated until the desired count is reached.
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) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |