Patent US5022942A successfully refreshed from Google Patents.
← Back to Patent Explorer
US5022942A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of making textured surface prosthesis implants

Assignee: Mentor Worldwide LLC
•
Filing: 1989-06-05
•
Granted: 1991-06-11
•
Expires: 2009-06-05
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A surgical prosthesis is disclosed having a textured exterior surface formed of non-absorbent material substantially free of pores and interstices. The invented device is usable for mammary and other implants. Various methods of manufacturing the device are also disclosed.

Inventors

  • 👤 John Y. J. Yan
  • 👤 Bobby K. Purkait

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 14:54
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/12; B; B29; B29C; B29C43/00; B29C43/02; B29C43/021; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 133 words
A process for making a textured surgical implant comprising: providing a smooth surface prosthesis shell having an exterior surface; disposing said shell on a substantially round disc-shaped mounting means, said mounting means having a first side and a second side, and wherein said shell is substantially disposed on said first side of said disk; disposing a formable, biocompatible material over said shell at least a portion of said exterior surface; providing a texturizing means; disposing said texturizing means over said formable, biocompatible material thereby imprinting said material to form a textured surface thereon; removing said texturing means from said textured material; curing said textured material to form a textured shell; patching said shell; filling said shell with a filler material; and patching said filled shell to retain said filler material in said shell.
Claim 2
Dependent Claim 133 words
A process for making a textured surgical implant comprising: providing a smooth surface prosthesis shell having an exterior surface; disposing said shell on a substantially round disc-shaped mounting means, said mounting means having a first side and a second side, and wherein said shell is substantially disposed on said first side of said disk; disposing a formable, biocompatible material over said shell at least a portion of said exterior surface; providing a texturizing means; disposing said texturizing means over said formable, biocompatible material thereby imprinting said material to form a textured surface thereon; removing said texturing means from said textured material; curing said textured material to form a textured shell; patching said shell; filling said shell with a filler material; and patching said filled shell to retain said filler material in said shell.
Claim 3
Dependent Claim 19 words
The process of claim 1 wherein said texturizing means is disposed over said material only on said first side.
Claim 4
Dependent Claim 43 words
The process of claim 1 wherein said material is disposed on said shell on said first side and said second side of said disk and said texturing means comprises two texturing means, one disposed on said material on each side of said disk.
Claim 5
Dependent Claim 26 words
The process of any of claim 1 wherein after said texturing means is disposed on said material, said shell is compressed between a pair of platens.
Claim 6
Dependent Claim 12 words
The process of claim 4 wherein said platens are at ambient temperature.
Claim 7
Dependent Claim 17 words
The process of claim 4 wherein at least one of said platens is at an elevated temperature.
Claim 8
Dependent Claim 12 words
The process of claim 1 wherein said formable, biocompatible material comprises silicone.
Claim 9
Dependent Claim 11 words
The process of claim 7 wherein said silicone comprises silicone sheeting.
Claim 10
Dependent Claim 11 words
The process of claim 1 wherein said texturing means comprises foam.
Claim 11
Dependent Claim 11 words
The process of claim 9 wherein said foam comprises reticulated foam.
Claim 12
Dependent Claim 13 words
The process of claim 1 wherein said texturizing means comprises a texturized plate.
Claim 13
Dependent Claim 12 words
The process of claim 1 wherein said texturizing means comprises a screen.
Claim 14
Dependent Claim 11 words
The process of claim 1 wherein said patch comprises texturized material.
Claim 15
Dependent Claim 56 words
The process of claim 1 wherein said patching step comprises the steps of: providing a patch of partially vulcanized silicone; disposing thereover a texturizing means; inserting said texturized patch in a patch hole of said shell with the texturized portion thereof facing outward; adhering said patch to said shell with silicone; and curing the patched shell.
Claim 16
Dependent Claim 113 words
A process for making a texturized surgical implant comprising the steps of: providing a mounting means formed substantially in the shape of the implant, said mounting means having disposed on its exterior surface a textured surface; coating said mounting means with a biocompatible formable material capable of adhering to an implant shell; disposing said shell over said coated mounting means; allowing said material to adhere to said shell; curing said shell and material; removing said implant shell and material from said mounting means; reversing said shell inside out so that said material is disposed on the exterior thereof; patching said shell; and filling said shell with filling material; and patching said filled shell.
Claim 17
Dependent Claim 113 words
A process for making a texturized surgical implant comprising the steps of: providing a mounting means formed substantially in the shape of the implant, said mounting means having disposed on its exterior surface a textured surface; coating said mounting means with a biocompatible formable material capable of adhering to an implant shell; disposing said shell over said coated mounting means; allowing said material to adhere to said shell; curing said shell and material; removing said implant shell and material from said mounting means; reversing said shell inside out so that said material is disposed on the exterior thereof; patching said shell; and filling said shell with filling material; and patching said filled shell.
Claim 18
Dependent Claim 145 words
A process for making a textured surgical implant comprising: providing a smooth surface prosthesis shell having an exterior surface; stretching said shell on a substantially round disc-shaped mounting means, said mounting means having a first side and a second side, whereby said shell is substantially disposed on said first side of said mounting means; layering unvulcanized or partially vulcanized silicone over at least a portion of said exterior surface of said shell; providing a reticulated foam as a texturizing means; disposing said reticulated foam over said silicone; compressing said reticulated foam and said silicone layered shell together thereby texturizing said silicone layer; removing said texturing means from said textured layer; curing said unvulcanized or partially vulcanized silicone to form a texturized shell; patching said shell; filling said shell with a filler material; and patching said filled shell to retain said filler material in said shell.
Claim 19
Dependent Claim 145 words
A process for making a textured surgical implant comprising: providing a smooth surface prosthesis shell having an exterior surface; stretching said shell on a substantially round disc-shaped mounting means, said mounting means having a first side and a second side, whereby said shell is substantially disposed on said first side of said mounting means; layering unvulcanized or partially vulcanized silicone over at least a portion of said exterior surface of said shell; providing a reticulated foam as a texturizing means; disposing said reticulated foam over said silicone; compressing said reticulated foam and said silicone layered shell together thereby texturizing said silicone layer; removing said texturing means from said textured layer; curing said unvulcanized or partially vulcanized silicone to form a texturized shell; patching said shell; filling said shell with a filler material; and patching said filled shell to retain said filler material in said shell.
Claim 20
Dependent Claim 54 words
The process of claim 16 wherein said silicone is disposed on said shell on said first side and said second side of said mounting means and said texturing means comprises two pieces of reticulated foam, one disposed on each side of said disk, whereby the shell on both sides of said disk is texturized.
Claim 21
Dependent Claim 20 words
The process of claim 16 wherein said compressing step is performed by compressing said shell between a pair of platens.
Claim 22
Dependent Claim 12 words
The process of claim 18 wherein said platens are at ambient temperature.
Claim 23
Dependent Claim 17 words
The process of claim 18 wherein at least one of said platens is at an elevated temperature.

References Cited (Backward Citations)

US3600718A Cited
US3683424A Cited
US3700380A Cited
US4126659A Cited
US4249975A Cited
US4249975B1 Cited
US4401492A Cited
US4329385A Cited
US4820303A Cited
US4592755A Cited
US4778469A Cited
US4832978A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-06-10 1994-12-10 1995-06-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-06-10 1998-12-10 1999-06-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-06-10 2002-12-10 2003-06-11 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag