US5527359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making positive and negative models for artificial breasts
Assignee: Nakamura Brace Co Ltd
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Filing: 1995-03-07
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Granted: 1996-06-18
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Expires: 2015-03-07
Abstract
Abstract Described is an artificial mamma and a series of molds for producing the mamma, in which the mamma comprises a bag-like member which has as a skin a thick film member made of silicon rubber and interposing therein an elastic fabric as a core enclosing air internally, the thick film member being partially larger in thickness to provide a point where an air injection needle is inserted. The mold for producing the mamma can be constructed from ordinary materials and without the need for specialized technicians.
Inventors
- 👤 Toshiro Nakamura
- 👤 Tetsuya Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:45
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/38; B29C33/40; B29C33/405; A; A61; A61F; A61F2/00; A61F2/50; A61F2/5044; A61F2/5046; A61F2/52; A61F2002/501; A61F2002/5053; A61F2002/526; A61F2250/00; A61F2250/0014; A61F2250/0036; Y; Y10; Y10S; Y10S264/00; Y10S264/30
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
120 words
A method of making a negative model for an artificial breast comprising the following steps: applying aluminum foil to a breast; deforming the aluminum foil to correspond to the breast; and coating the aluminum foil with a foam-hardening type of urethane resin liquid, wherein the negative model to produce the artificial breast is formed according to a first breast which is opposite a second breast location where the artificial breast is to be placed, the negative model having a first side for producing an artificial breast corresponding to said first breast and a second side for producing an artificial breast corresponding to said second breast location, the first side and the second side being reversed with respect to each other.
Claim 2
Independent Claim
120 words
A method of making a negative model for an artificial breast comprising the following steps: applying aluminum foil to a breast; deforming the aluminum foil to correspond to the breast; and coating the aluminum foil with a foam-hardening type of urethane resin liquid, wherein the negative model to produce the artificial breast is formed according to a first breast which is opposite a second breast location where the artificial breast is to be placed, the negative model having a first side for producing an artificial breast corresponding to said first breast and a second side for producing an artificial breast corresponding to said second breast location, the first side and the second side being reversed with respect to each other.
Claim 3
Independent Claim
168 words
A method of making a positive model for an artificial breast and a negative model comprising the following steps: applying plaster to an aluminum model to form a first positive model; removing the aluminum model; coating the first positive model with aluminum foil; reinforcing the aluminum foil with adhesive taping; removing the aluminum foil and adhesive taping from the first positive model; reversing the aluminum foil and adhesive taping by applying pressure on the adhesive taping to form a reversed aluminum foil model; applying plaster to the reversed aluminum foil model to form a second positive model having an outer surface; removing the reversed aluminum foil model; treating the outer surface of the second positive model; and applying plaster to the positive model to form a negative model, said negative model having an inner surface said first positive model corresponding to one of a left and right breast of a person, and said second model corresponding to the other of said left and right breast of a person.
Claim 4
Independent Claim
168 words
A method of making a positive model for an artificial breast and a negative model comprising the following steps: applying plaster to an aluminum model to form a first positive model; removing the aluminum model; coating the first positive model with aluminum foil; reinforcing the aluminum foil with adhesive taping; removing the aluminum foil and adhesive taping from the first positive model; reversing the aluminum foil and adhesive taping by applying pressure on the adhesive taping to form a reversed aluminum foil model; applying plaster to the reversed aluminum foil model to form a second positive model having an outer surface; removing the reversed aluminum foil model; treating the outer surface of the second positive model; and applying plaster to the positive model to form a negative model, said negative model having an inner surface said first positive model corresponding to one of a left and right breast of a person, and said second model corresponding to the other of said left and right breast of a person.
Claim 5
Dependent Claim
60 words
The method of making a positive model and a negative model according to claim 2 further comprising the steps of: applying foamable plastic to the inner surface of the negative model to form an inner plastic surface having a thickness substantially equivalent to the artificial breast; and applying plaster to the inner plastic surface to form a final positive model.
Claim 6
Independent Claim
177 words
A method of making a positive model, a negative model and an artificial breast comprising the following steps: applying plaster to an aluminum model to form a first positive model; removing the aluminum model; coating the first positive model with aluminum foil; reinforcing the aluminum foil with adhesive taping; removing the aluminum foil and adhesive taping from the first positive model; reversing the aluminum foil and adhesive taping by applying pressure on the adhesive taping to form a reversed aluminum foil model; applying plaster to the reversed aluminum foil model to form a second positive model having an outer surface; removing the reversed aluminum foil model; treating the outer surface of the second positive model; applying plaster to the positive model to form a negative model; and injecting silicon rubber melt between the positive model and the negative model to form the artificial breast, said first positive model corresponding to one of a left and right breast of a person, and said second model corresponding to the other of said left and right breast of a person.
Claim 7
Independent Claim
177 words
A method of making a positive model, a negative model and an artificial breast comprising the following steps: applying plaster to an aluminum model to form a first positive model; removing the aluminum model; coating the first positive model with aluminum foil; reinforcing the aluminum foil with adhesive taping; removing the aluminum foil and adhesive taping from the first positive model; reversing the aluminum foil and adhesive taping by applying pressure on the adhesive taping to form a reversed aluminum foil model; applying plaster to the reversed aluminum foil model to form a second positive model having an outer surface; removing the reversed aluminum foil model; treating the outer surface of the second positive model; applying plaster to the positive model to form a negative model; and injecting silicon rubber melt between the positive model and the negative model to form the artificial breast, said first positive model corresponding to one of a left and right breast of a person, and said second model corresponding to the other of said left and right breast of a person.
Claim 8
Dependent Claim
31 words
The method of making a positive model, a negative model and an artificial breast according to claim 4 wherein elastic fiber is injected between the positive model and the negative model.
Claim 9
Dependent Claim
34 words
The method of making a positive model, a negative model and an artificial breast according to claim 4 wherein the second positive model is shaved by a thickness substantially equivalent to the artificial breast.
Claim 10
Independent Claim
229 words
A method of making a positive model, a negative model and an artificial breast comprising the following steps: applying plaster to an aluminum model to form a first positive model; removing the aluminum model; coating the first positive model with aluminum foil; reinforcing the aluminum foil with adhesive taping; removing the aluminum foil and adhesive taping from the first positive model; reversing the aluminum foil and adhesive taping by applying pressure on the adhesive taping to form a reversed aluminum foil model; applying plaster to the reversed aluminum foil model to form a second positive model having an outer surface; removing the reversed aluminum foil model; treating the outer surface of the second positive model; applying plaster to the positive model to form a negative model; said negative model having an inner surface applying foamable plastic to the inner surface of the negative model to form an inner plastic layer having a thickness substantially equivalent to the artificial breast; applying plaster to the inner plastic layer to form a final positive model; removing the inner plastic layer; and injecting silicon rubber melt between the final positive model and the negative model to form the artificial breast, said first positive model corresponding to one of a left and right breast of a person, and said second model corresponding to the other of said left and right breast of a person.
Claim 11
Independent Claim
229 words
A method of making a positive model, a negative model and an artificial breast comprising the following steps: applying plaster to an aluminum model to form a first positive model; removing the aluminum model; coating the first positive model with aluminum foil; reinforcing the aluminum foil with adhesive taping; removing the aluminum foil and adhesive taping from the first positive model; reversing the aluminum foil and adhesive taping by applying pressure on the adhesive taping to form a reversed aluminum foil model; applying plaster to the reversed aluminum foil model to form a second positive model having an outer surface; removing the reversed aluminum foil model; treating the outer surface of the second positive model; applying plaster to the positive model to form a negative model; said negative model having an inner surface applying foamable plastic to the inner surface of the negative model to form an inner plastic layer having a thickness substantially equivalent to the artificial breast; applying plaster to the inner plastic layer to form a final positive model; removing the inner plastic layer; and injecting silicon rubber melt between the final positive model and the negative model to form the artificial breast, said first positive model corresponding to one of a left and right breast of a person, and said second model corresponding to the other of said left and right breast of a person.
Claim 12
Dependent Claim
29 words
The method of making a positive model, a negative model and an artificial breast according to claim 7 wherein the inner plastic layer is treated with a release agent.
Claim 13
Dependent Claim
32 words
The method of making a positive model, a negative model and an artificial breast according to claim 7 wherein elastic fiber is injected between the final positive model and the negative model.
Claim 14
Dependent Claim
41 words
The method of making a positive model, a negative model and an artificial breast according to claim 7 wherein the foamable plastic is applied such that it has a lump-like shaped larger thickness part at a point corresponding to a nipple.
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) | 1999-06-18 | 1999-12-18 | 2000-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-18 | 2003-12-18 | 2004-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-18 | 2007-12-18 | 2008-06-18 | $7700.00 | Window Closed / Lapsed |