Patent US4589405A successfully refreshed from Google Patents.
US4589405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal activated penile prosthesis
Assignee: Individual
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Filing: 1984-10-12
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Granted: 1986-05-20
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Expires: 2004-10-12
Abstract
Abstract A pair of inflatable tubes for implanting in the corporal cavernosa of a man's penis to restore potency. These prosthesis tubes contain a small charge of a hydrocarbon fluid which when heated to a temperature above 98.3° F. boils, building up a gas pressure and causing a stiffening of the prosthesis tubes. When the prosthesis is cooled below 98.3° F. the gas condenses and allows the prosthesis to go limp again. The use of a heat sensitive hydrocarbon in the prosthesis eliminates the need for a pump as a prime mover to cause an erection.
Inventors
- 👤 George T. Hemmeter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:19
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/26; A61L; A61L27/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A penile prosthesis device comprising a pair of sealed tubes, sized and shaped for implantation in the corpora cavernosa of the penis, said tubes made of a thin, supple, hydrocarbon compatible plastic material, with each tube partially filled with either Pentene -2 (C 5 H10) or Beta-Amylene (C 5 H10), said tubes in the normal state being collapsed and void of air, said tubes being inflated by increasing the temperature of the hydrocarbon above the boiling point to create a gas pressure within the tube.
Claim 2
Dependent Claim
85 words
A penile prosthesis device comprising a pair of sealed tubes, sized and shaped for implantation in the corpora cavernosa of the penis, said tubes made of a thin, supple, hydrocarbon compatible plastic material, with each tube partially filled with either Pentene -2 (C 5 H10) or Beta-Amylene (C 5 H10), said tubes in the normal state being collapsed and void of air, said tubes being inflated by increasing the temperature of the hydrocarbon above the boiling point to create a gas pressure within the tube.
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) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |