US5133754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi hardness silicone implants
Assignee: Individual
•
Filing: 1991-03-21
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Granted: 1992-07-28
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Expires: 2011-03-21
Abstract
Abstract Silicone rubber implants having at least two integral and inseparable sections separated by a line of demarcation where the hardness of the different sections is different so that the implant more closely mimics the human body part it simulates. A chin implant has a first hard section and a second soft section. The hard section abuts the patient's mandible when the implant is installed and the soft part provides the patient with a soft chin. A nose implant is softest at its tip to simulate a natural nose and is harder in the dorsum area and harder still in the columella area. The implants are made by injecting a first batch of silicone rubber having a first hardness into a first mold, followed by transfer of the completed part to a second mold and injection of at least a second batch of silicone having a differing hardness into the second mold, onto the first-formed part, so that the materials of differing hardness bond naturally to one another. Coinjection techniques may also be employed to achieve the same result.
Inventors
- 👤 Aldo A. Laghi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:04
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/16; B29C45/1676; A; A61; A61F; A61F2/00; A61F2/0059; A61F2/02; A61F2/18; A61F2/186; A61F2250/00; A61F2250/0014; A61F2250/0019; B29K; B29K2083/00; B29K2283/00; B29K2995/00; B29K2995/0037; B29K2995/007; B29L; B29L2031/00; B29L2031/753; B29L2031/7532
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
111 words
A prosthetic device of the type implanted below the skin of a human individual for cosmetic or reconstructive purposes, comprising: a first section made of a preselected material having a first predetermined hardness; said first section having an arcuate configuration so that it abuts a patient's mandible when said device is implanted; said first predetermined hardness being about 20 Shore A; a second section made of said preselected material having a second predetermined hardness different from said first predetermined hardness; said second section having an arcuate configuration so that it provides a natural appearance in an chin when said device is implanted; said second predetermined hardness being about 40 Shore A.
Claim 2
Dependent Claim
111 words
A prosthetic device of the type implanted below the skin of a human individual for cosmetic or reconstructive purposes, comprising: a first section made of a preselected material having a first predetermined hardness; said first section having an arcuate configuration so that it abuts a patient's mandible when said device is implanted; said first predetermined hardness being about 20 Shore A; a second section made of said preselected material having a second predetermined hardness different from said first predetermined hardness; said second section having an arcuate configuration so that it provides a natural appearance in an chin when said device is implanted; said second predetermined hardness being about 40 Shore A.
Claim 3
Dependent Claim
12 words
The device of claim 1, wherein said preselected material is silicone rubber.
Claim 4
Dependent Claim
168 words
A prosthetic device of the type implanted under the skin of a human individual for cosmetic or reconstructive purposes, comprising: a first section made of a preselected material having a first predetermined hardness; said first section having a predetermined configuration that provides the shape of a tip area of a nose when the device is implanted; a second section made of a preselected material having a second predetermined hardness greater than the hardness of said first section; said second section having a predetermined configuration that provides the shape of a dorsum area of a nose when the device is implanted; a third section made of a preselected material having a third predetermined hardness greater than the hardness of said second section; said third section having a predetermined configuration that provides the shape of a columella area of a nose when the device is implanted; said first, second, and third sections being integrally formed with one another to provide the shape of a nose when the device is implanted.
Claim 5
Dependent Claim
168 words
A prosthetic device of the type implanted under the skin of a human individual for cosmetic or reconstructive purposes, comprising: a first section made of a preselected material having a first predetermined hardness; said first section having a predetermined configuration that provides the shape of a tip area of a nose when the device is implanted; a second section made of a preselected material having a second predetermined hardness greater than the hardness of said first section; said second section having a predetermined configuration that provides the shape of a dorsum area of a nose when the device is implanted; a third section made of a preselected material having a third predetermined hardness greater than the hardness of said second section; said third section having a predetermined configuration that provides the shape of a columella area of a nose when the device is implanted; said first, second, and third sections being integrally formed with one another to provide the shape of a nose when the device is implanted.
Claim 6
Dependent Claim
12 words
The device of claim 3, wherein said preselected material is silicone rubber.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-28 | 1996-01-27 | 1996-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-28 | 2000-01-27 | 2000-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-28 | 2004-01-27 | 2004-07-28 | $7700.00 | Window Closed / Lapsed |