US5922024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soft tissue implant
Assignee: Datascope Investment Corp
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Filing: 1997-05-12
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Granted: 1999-07-13
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Expires: 2017-05-12
Abstract
Abstract Soft tissue implants can be constructed by forming an outer membrane into a closed pouch and filling material in that pouch. A composition for use as a filler material in such a soft tissue implant may include elastin and collagen. The filling material has collagen as a component thereof, and this collagen can be cross-linked or not cross-linked. Methods of making such implants are described.
Inventors
- 👤 Ernst Janzen
- 👤 Matthias Johannes Hoekstra
- 👤 Richard P. Dutrieux
- 👤 Leonardus Hermannus Hendrikus Olde Damink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:55
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/36; A61L27/3683; A61L27/3687; A61F; A61F2/00; A61F2/02; A61F2/12; A61L27/14; A61L27/18; A61L27/22; A61L27/24; A61L27/26; A61L27/3604; A61L27/3641; A61F2250/00; A61F2250/0003; A61F2310/00; A61F2310/00005; A61F2310/00365; A61L2430/00; A61L2430/04; A61L2430/34; A61L2430/40; Y; Y10; Y10S; Y10S128/00; Y10S128/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
65 words
A method of breast augmentation comprising the steps of: providing a soft tissue implant comprising an outer membrane formed into a closed pouch and a filling material contained in the closed pouch, the filling material comprising comminuted collagen and elastin, in which a natural tissue structure has been broken up, wherein the collagen is not cross-linked; and implanting into the breast the soft tissue implant.
Claim 2
Independent Claim
65 words
A method of breast augmentation comprising the steps of: providing a soft tissue implant comprising an outer membrane formed into a closed pouch and a filling material contained in the closed pouch, the filling material comprising comminuted collagen and elastin, in which a natural tissue structure has been broken up, wherein the collagen is not cross-linked; and implanting into the breast the soft tissue implant.
Claim 3
Dependent Claim
33 words
The method of claim 1 further comprising the step of changing the size of said implant after implantation thereof by injecting or removing said filling material into said pouch through an hypodermic needle.
Claim 4
Independent Claim
115 words
A method of making a soft tissue implant pouch containing filling material wherein said pouch is made of a membrane derived from natural animal membrane selected from the group comprising the peritoneum, omentum, amnion, chorion, pleura, pericardium, facia lata, dura mater, intestine and dermis and wherein said filling material is derived from a starting material selected from the group comprising animal ligaments, membranes and tendons, said method comprising treating said natural animal membrane, treating said filling material before, after or simultaneously with treating said natural animal membrane, forming said treated animal membrane into a partially closed pouch, placing said treated filling material into said partially closed pouch and then closing the rest of the pouch.
Claim 5
Independent Claim
115 words
A method of making a soft tissue implant pouch containing filling material wherein said pouch is made of a membrane derived from natural animal membrane selected from the group comprising the peritoneum, omentum, amnion, chorion, pleura, pericardium, facia lata, dura mater, intestine and dermis and wherein said filling material is derived from a starting material selected from the group comprising animal ligaments, membranes and tendons, said method comprising treating said natural animal membrane, treating said filling material before, after or simultaneously with treating said natural animal membrane, forming said treated animal membrane into a partially closed pouch, placing said treated filling material into said partially closed pouch and then closing the rest of the pouch.
Claim 6
Dependent Claim
49 words
The method of claim 3 wherein said natural animal membrane is treated using a process comprising the steps of washing said membrane in water, treating the washed membrane with a strong alkali, treating said membrane with an acid, and treating said membrane with a base to neutralize the acid.
Claim 7
Dependent Claim
17 words
The method of claim 4 further comprising the step of drying said membrane after said neutralizing step.
Claim 8
Dependent Claim
57 words
The method of claim 3 wherein said filling starting material is treated using a process comprising the steps of treating said starting material with a strong alkali solution, treating the starting material with an acid, treating the starting material with a base to neutralize the acid, and mechanically working the starting material to separate the elastin fibers.
Claim 9
Dependent Claim
18 words
The method of claim 6 further comprising the step of drying said filling material after said neutralizing step.
Claim 10
Dependent Claim
13 words
The method of claim 6 wherein said starting material is bovine ligamentum nuchae.
Claim 11
Dependent Claim
31 words
The method of claim 3 wherein said pouch membrane is prepared by a process according to claim 4 and said filling material is prepared by a process according to claim 6.
Claim 12
Dependent Claim
26 words
The method of claim 3 wherein said pouch is made by sewing together two pieces of treated natural animal membrane around the periphery of said pouch.
Claim 13
Dependent Claim
31 words
The method of claim 3 wherein said pouch is made of a single piece of treated natural animal membrane which has been folded and sewn around the periphery of said pouch.
References Cited (Backward Citations)
GB1565340A
Cited
US4291013A
Cited
US4597762A
Cited
US4840628A
Cited
US4298998A
Cited
US4582640A
Cited
US4474763A
Cited
US4801299A
Cited
US4601896A
Cited
US5397353A
Cited
US4725671A
Cited
US4689399A
Cited
US4655980A
Cited
US4600533A
Cited
US4772284A
Cited
US5002071A
Cited
US5094661A
Cited
US5219576A
Cited
US5206028A
Cited
US5219360A
Cited
US5523291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-07-12 | 2003-01-11 | 2003-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-07-12 | 2007-01-11 | 2007-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-07-12 | 2011-01-11 | 2011-07-13 | $7700.00 | Window Closed / Lapsed |