Patent US4424807A successfully refreshed from Google Patents.
US4424807A
Expired / Lapsed
US
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Penile implant
Assignee: Individual
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Filing: 1981-10-20
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Granted: 1984-01-10
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Expires: 2001-10-20
Abstract
Abstract A method of simulating a natural erection utilizing a penile implant which is arranged to be actuatable to simulate the natural erection. The implant comprises a pair of hollow, enclosed bladders, each formed of a membrane of thin, very flexible material and being capable of inflation from a flaccid state by the introduction of a fluid therein. Each bladder is located within a passageway formed in each corporus cavernosum. Means are provided for filling the bladders with fluid to inflate the bladders from the flaccid state to a predetermined volume without causing the bladder membrane to undergo tension. The predetermined volume is sufficiently great to cause the corpora cavernosa to expand so that its fibrous tissue envelope is stretched to encompass another predetermined volume, whereupon the fibrous tissue envelope becomes tense and the penis becomes hard and erect.
Inventors
- 👤 Alvin S. Evans, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:35
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/26
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
234 words
A method of simulating a natural erection in a penis having coprora cavernvosa bounded by an envelope of fibrous tissue expandable to a predetermined maximum size, whereupon said envelope encompasses a first predetermined volume when said penis is flaccid, said corpora cavernvosa being expandable wherein said envelope encompasses a second predetermined volume when said penis is hard and erect, with the limit of said expanision of said corpora cavernosa being said second predetermined volume and being established by the maximum expansion of said fibrous tissue, each of said corpus cavernvosum having a passageway formed therein, said method comprising the steps of: (1) implanting in the passageway of each corpus cavernvosum a hollow, enclosed bladder, each bladder having an access port in communication with the interior thereof and formed of a membrane of thin, flexible material, (2) connecting said access ports to a source of fluid, (3) directing fluid through said access ports from said fluid source to said bladders to inflate said bladders from said flaccid state to a third predetermined volume, said third predetermined volume being less than the maximum volumetric capacity of said bladders so as not cause the respective bladder membranes to undergo tension, while being sufficiently great to cause said corpora cavernosa to expand so that said fibrous tissue encompasses said second predetermined volume to cause said fibrous tissue to become tense and said penis to become erect and hard.
Claim 2
Independent Claim
234 words
A method of simulating a natural erection in a penis having coprora cavernvosa bounded by an envelope of fibrous tissue expandable to a predetermined maximum size, whereupon said envelope encompasses a first predetermined volume when said penis is flaccid, said corpora cavernvosa being expandable wherein said envelope encompasses a second predetermined volume when said penis is hard and erect, with the limit of said expanision of said corpora cavernosa being said second predetermined volume and being established by the maximum expansion of said fibrous tissue, each of said corpus cavernvosum having a passageway formed therein, said method comprising the steps of: (1) implanting in the passageway of each corpus cavernvosum a hollow, enclosed bladder, each bladder having an access port in communication with the interior thereof and formed of a membrane of thin, flexible material, (2) connecting said access ports to a source of fluid, (3) directing fluid through said access ports from said fluid source to said bladders to inflate said bladders from said flaccid state to a third predetermined volume, said third predetermined volume being less than the maximum volumetric capacity of said bladders so as not cause the respective bladder membranes to undergo tension, while being sufficiently great to cause said corpora cavernosa to expand so that said fibrous tissue encompasses said second predetermined volume to cause said fibrous tissue to become tense and said penis to become erect and hard.
Claim 3
Dependent Claim
25 words
The method of claim 1, wherein portions of said bladder membrane are lapped and overlie each other when said bladder is in a flaccid state.
Claim 4
Dependent Claim
20 words
The method of claim 1, wherein flexible conduit means are utilized in connecting said fluid source to said access ports.
Claim 5
Dependent Claim
23 words
The method of claim 3, wherein the passage of fluid from said fluid source to said access ports is controlled by valve means.
Claim 6
Dependent Claim
15 words
The method of claim 4, wherein said valve means is remotely located from said bladders.
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) | 1987-01-09 | 1987-07-11 | 1988-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-09 | 1991-07-11 | 1992-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-09 | 1995-07-11 | 1996-01-10 | $7700.00 | Window Closed / Lapsed |