Implantable prosthetic device and tethered inflation valve for volume

• US 5,146,933 A
• Filed: 09/20/1991
• Issued: 09/15/1992
• Est. Priority Date: 09/20/1991
• Status: Expired due to Fees

• Current Assignee: Dow Corning Wright Corp (Dow, Inc.)
• Original Assignee: Dow Corning Wright Corp (Dow, Inc.)
• Inventors: Boyd, Lawrence M.
• Primary Examiner(s): Frinks, Ronald
• Application Number:
  US07/764,560
• Time in Patent Office: 361 Days
• Field of Search: 623/7, 623/8, 623/11, 623/901, 128/899, 128/898
• US Class Current: 128/899
• CPC Class Codes: A61B 90/02 Devices for expanding tissue, e.g. skin tissue implements for holding wounds open, surgical tractors A61B17/02; implantable mammary prosthesis A61F2/12; dilators A61M29/00
• CPC Class Codes: A61F 2/12 Mammary prostheses and implants
• CPC Class Codes: Y10S 623/901 Method of manufacturing prosthetic device

Abstract

According to the invention, there is provided an implantable prosthetic device inflatable by a self-contained resealable valve in combination with an external locator for determining the position of the valve. The prosthesis includes a flexible outer envelope defining a closed lumen and having a valve attached to an area of the envelope with indicia on the valve responsive to the external locator for determining the position of the valve. A plurality of spaced sensors are each fixedly arrayed on the locator so that when the sensors are in a certain non-juxtaposed relationship with the indicia the sensors orientate with one another, signifying a true location of the valve. A multi-compartmental design having a tethered valve for selective inflation of an inner lumen is also disclosed. The tissue-contacting surface of the outer envelope is micro-textured to minimize tissue capsule contracture.

Claims

1. An implantable prosthetic device inflatable by a self-contained resealable valve comprising:

a outer flexible elastomeric envelope;

an inner elastomeric envelope spaced inwardly from the outer envelope, respectively defining an outer closed lumen and an inner closed lumen nested within the outer lumen;

a resealable injection valve attached to a selected area of the outer envelope, the inner envelope being tethered to the valve and spaced inwardly from the selected area by a fill-tube for directly inflating the inner lumen.

2. An implantable prosthetic device inflatable by a self-contained resealable valve comprising:

a first flexible elastomeric envelope;

an second elastomeric envelope joined with the first envelope along a common surface, respectively defining first and second closed compartments;

a resealable injection valve attached to a selected area of the first envelope, the second envelope being tethered to the valve through the first compartment and spaced from the selected area by a fill-tube for directly inflating the second compartment.