Patent US5658516A successfully refreshed from Google Patents.
US5658516A
Expired / Lapsed
US
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Method of making a prospthetic implant
Assignee: United States Surgical Corp
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Filing: 1995-05-18
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Granted: 1997-08-19
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Expires: 2015-05-18
Abstract
Abstract Flexible prosthetic implants for repairing, replacing or augmenting hard tissue or bone. The flexible implant comprises a plurality of segments that are connected by flexible retainers which enable the segments to be re-oriented in relation to one another to accommodate the contour, size and shape of the body part being treated. A method for making such flexible prosthetic implants is also disclosed.
Inventors
- 👤 Barry Eppley
- 👤 Thomas Sander
- 👤 Robert D. Torgerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:01
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/30721; A61F2/28; A61F2/2803; A61F2/2875; A61L; A61L27/00; A61L27/14; A61L27/26; A61F2/18; A61F2/186; A61F2002/2807; A61F2002/2882; A61F2002/2885; A61F2002/2889; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2002/30108; A61F2002/3011; A61F2002/30159; A61F2002/30166; A61F2002/30316; A61F2002/30329; A61F2002/30535; A61F2002/30565; A61F2002/30571; A61F2002/30667; A61F2002/30708; A61F2/30734; A61F2002/30736; A61F2/3094; A61F2/30942; A61F2002/30957; A61F2002/30962; A61F2210/00; A61F2210/0004; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2250/00; A61F2250/0058; A61F2250/0084; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61F2310/00023; A61F2310/00029; A61F2310/00179; B; B33; B33Y; B33Y80/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
110 words
A method of making a prosthetic implant comprising the steps of: partially filling a mold having two spaced apart cavities with material suitable for forming prosthetic implants; placing a flexible retainer between the two partially filled cavities so the retainer extends partially into each cavity; filling said mold to cover the retainer; curing the material to form a prosthetic implant; and removing the prosthetic implant from the mold wherein the prosthetic implant includes at least two segments which are connected by the flexible retainer such that the segments and the flexible retainer cooperate to conform the prosthetic implant to the contour of at least a portion of underlying maxillofacial bone.
Claim 2
Independent Claim
110 words
A method of making a prosthetic implant comprising the steps of: partially filling a mold having two spaced apart cavities with material suitable for forming prosthetic implants; placing a flexible retainer between the two partially filled cavities so the retainer extends partially into each cavity; filling said mold to cover the retainer; curing the material to form a prosthetic implant; and removing the prosthetic implant from the mold wherein the prosthetic implant includes at least two segments which are connected by the flexible retainer such that the segments and the flexible retainer cooperate to conform the prosthetic implant to the contour of at least a portion of underlying maxillofacial bone.
Claim 3
Independent Claim
192 words
A method of making a prosthetic implant comprising: a) placing at least two segments in an adjacently spaced apart relation; b) molding around said segments so as to form a mold having at least two cavities which are separated from one another by at least one wall of said mold; c) removing a portion of said at least one wall, the portion corresponding to the size and shape of a retaining member to permit the retaining member to be situated to traverse adjacent cavities; d) partially filling said mold cavities with a material suitable for forming prosthetic implants; e) placing a flexible retainer member between said adjacent cavities such that said retainer member traverses said wall between adjacent cavities; f) further filling said mold cavities with the material suitable for forming prosthetic implants; g) curing the material suitable for forming prosthetic implants so as to form a prosthetic implant having at least two segments connected by the flexible retaining member; and h) removing the prosthetic implant from the mold wherein the segments and the flexible retaining member cooperate to conform the prosthetic: implant to at least a portion of underlying maxillofacial bone.
Claim 4
Independent Claim
192 words
A method of making a prosthetic implant comprising: a) placing at least two segments in an adjacently spaced apart relation; b) molding around said segments so as to form a mold having at least two cavities which are separated from one another by at least one wall of said mold; c) removing a portion of said at least one wall, the portion corresponding to the size and shape of a retaining member to permit the retaining member to be situated to traverse adjacent cavities; d) partially filling said mold cavities with a material suitable for forming prosthetic implants; e) placing a flexible retainer member between said adjacent cavities such that said retainer member traverses said wall between adjacent cavities; f) further filling said mold cavities with the material suitable for forming prosthetic implants; g) curing the material suitable for forming prosthetic implants so as to form a prosthetic implant having at least two segments connected by the flexible retaining member; and h) removing the prosthetic implant from the mold wherein the segments and the flexible retaining member cooperate to conform the prosthetic: implant to at least a portion of underlying maxillofacial bone.
Claim 5
Dependent Claim
20 words
A method according to claim 2, wherein said material for forming the prosthetic implant is composed of polymethylmethacrylate polyhydroxyethylmethacrylate composite.
Claim 6
Independent Claim
102 words
A method of making a prosthetic implant comprising: providing a mold having two spaced apart cavities; placing a flexible retainer between the two spaced apart cavities so the retainer extends partially into each cavity; filling the mold with material suitable for forming prosthetic implants; curing the material to form a prosthetic implant; and removing the prosthetic implant from the mold wherein the prosthetic implant includes at least two segments which are connected by the flexible retainer such that the segments and the flexible retainer cooperate to conform the prosthetic implant to the contour of at least a portion of underlying maxillofacial bone.
Claim 7
Independent Claim
102 words
A method of making a prosthetic implant comprising: providing a mold having two spaced apart cavities; placing a flexible retainer between the two spaced apart cavities so the retainer extends partially into each cavity; filling the mold with material suitable for forming prosthetic implants; curing the material to form a prosthetic implant; and removing the prosthetic implant from the mold wherein the prosthetic implant includes at least two segments which are connected by the flexible retainer such that the segments and the flexible retainer cooperate to conform the prosthetic implant to the contour of at least a portion of underlying maxillofacial bone.
References Cited (Backward Citations)
US374572A
Cited
US1688621A
Cited
US2672686A
Cited
US2826814A
Cited
US3809733A
Cited
DE1960087A1
Cited
US3882858A
Cited
NL7412032A
Cited
US3987789A
Cited
US4186448A
Cited
US4267608A
Cited
US4313232A
Cited
US4393728A
Cited
US4360342A
Cited
US4362509A
Cited
USD270373S
Cited
US4392562A
Cited
US4448741A
Cited
US4636347A
Cited
US4636215A
Cited
USD290877S
Cited
USD290878S
Cited
USD290879S
Cited
US4693721A
Cited
WO1986006954A1
Cited
US4790849A
Cited
USRE32972E
Cited
WO1989003663A1
Cited
US4990160A
Cited
US4969901A
Cited
US4921671A
Cited
US4917701A
Cited
US4888018A
Cited
EP0398497A1
Cited
US4955910A
Cited
US4997446A
Cited
US5087259A
Cited
US5156777A
Cited
US5336460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-08-18 | 2001-02-17 | 2001-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-18 | 2005-02-17 | 2005-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-18 | 2009-02-17 | 2009-08-19 | $7700.00 | Window Closed / Lapsed |