US4832978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simulated connective tissue for construction of models and prostheses
Assignee: Individual
•
Filing: 1987-04-24
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Granted: 1989-05-23
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Expires: 2007-04-24
Abstract
Abstract A cured emulsion of a polymerizable silicone compound and an inert paste such as petroleum jelly, liquid soap solution, or combination thereof forms a tough, elastic material that simulates the characteristics of connective tissue when used to join an outer skin layer to an understructure, and is useable in the production of models and prostheses. The silicone compound is preferably a mixture of a room temperature vulcanizable silicone rubber and a low viscosity silicone fluid. A high viscosity plasticizer, such as high viscosity silicone fluid, can be added to the emulsion to better simulate the characteristics of connective tissue. The emulsion is preferably joined to the outer skin layer by adhering fiber to the emulsion and coating the emulsion and fibers with the outer layer.
Inventors
- 👤 Jary M. Lesser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:54
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/28; G09B23/30; A; A61; A61F; A61F2/00; A61F2/50; A61L; A61L27/00; A61L27/14; A61L27/18; Y; Y10; Y10S; Y10S623/00; Y10S623/924; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23914; Y10T428/23943
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
78 words
A method for connecting a surface layer to an understructure to simulate the characteristics of connective tissue, comprising the steps of: applying a thin layer of a partially cured emulsion of a polymerizable silicone compound and an inert paste to the understructure; embedding fibers in the partially cured silicone compound; coating the emulsion after curing of the silicone compound with a liquid outer layer that binds with the fibers upon drying; and drying the coated emulsion surface layer.
Claim 2
Independent Claim
78 words
A method for connecting a surface layer to an understructure to simulate the characteristics of connective tissue, comprising the steps of: applying a thin layer of a partially cured emulsion of a polymerizable silicone compound and an inert paste to the understructure; embedding fibers in the partially cured silicone compound; coating the emulsion after curing of the silicone compound with a liquid outer layer that binds with the fibers upon drying; and drying the coated emulsion surface layer.
Claim 3
Dependent Claim
25 words
The method of claim 1, wherein the silicone compound is a mixture of a room temperature vulcanizing silicone rubber and a low viscosity silicone fluid.
Claim 4
Dependent Claim
15 words
The method of claim 2, wherein the emulsion further contains a high viscosity silicone fluid.
Claim 5
Dependent Claim
22 words
The method of claim 3, wherein the inert paste is selected from a group consisting of petrolatum, liquid detergent, and combinations thereof.
Claim 6
Dependent Claim
51 words
The method of claim 2, wherein the high viscosity silicone fluid, the inert paste, and about 2 to about 4 volumes of the low viscosity silicone fluid are added to a partially polymerized mixture of about 1 volume of silicone rubber and about 2 volumes of the low viscosity silicone fluid.
Claim 7
Dependent Claim
30 words
The method of claim 1, further comprising the step of constructing a skeletal member in the understructure from a mixture of latex and talc prior to application of the emulsion.
Claim 8
Independent Claim
73 words
A method of connecting a surface layer to an understructure to simulate the characteristics of connective tissues, comprising the steps of: adhereing to the understructure a thin layer of a partially cured emulsion of a polymerizable silicone compound and an inert paste; adhering fibers to the exposed surface of the emulsion; coating the emulsion with a liquid outer layer that binds with the fibers when dried; and drying the coated emulsion surface layer.
Claim 9
Independent Claim
73 words
A method of connecting a surface layer to an understructure to simulate the characteristics of connective tissues, comprising the steps of: adhereing to the understructure a thin layer of a partially cured emulsion of a polymerizable silicone compound and an inert paste; adhering fibers to the exposed surface of the emulsion; coating the emulsion with a liquid outer layer that binds with the fibers when dried; and drying the coated emulsion surface layer.
Claim 10
Dependent Claim
34 words
The method of claim 7, wherein the silicone compound contains from about 4 to about 6 volumes of a of low viscosity silicone fluid for each volume of a room temperature vulcanizing silicone rubber.
Claim 11
Dependent Claim
15 words
The method of claim 8, wherein the emulsion further includes a high viscosity silicone fluid.
Claim 12
Dependent Claim
41 words
The method of claim 9, wherein the emulsion and the fibers are adhered with a silicone adhesive containing from about 4 to about 6 volumes of the low viscosity silicone fluid for each volume of the room temperature vulcanizing silicone rubber.
Claim 13
Dependent Claim
31 words
The method of claim 7, further comprising the step of forming a skeletal member in the understructure with a composition of latex and talc prior to the adhesion of the emulsion.
References Cited (Backward Citations)
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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) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |