Encapsulated implant

• US 5,246,454 A
• Filed: 07/22/1991
• Issued: 09/21/1993
• Est. Priority Date: 07/22/1991
• Status: Expired due to Fees

• Current Assignee: Peterson, Robert L.
• Original Assignee: Peterson, Robert L.
• Inventors: Peterson, Robert L.
• Primary Examiner(s): Isabella, David
• Assistant Examiner(s): GUALTIERI, GINA
• Application Number:
  US07/733,813
• Time in Patent Office: 792 Days
• Field of Search: 623/7, 623/8, 623/66
• US Class Current: 623/8
• CPC Class Codes: A61F 2/12 Mammary prostheses and implants

Abstract

Surgical implants for human breasts have small, 5-10 cc flat disc-shaped pouches containing saline material. About 20-50 pouches are held within an outer membrane. The encapsulation of the saline solution within the pouches provides an apparent increase of viscosity of saline, and the flat disc shapes provide protection against rupture.

Claims

1. A bio-compatible human breast implant for augmenting, reshaping or replacing human breast tissue, comprising a flexible outer membrane containing a plurality of small individual pouches which are stackably layered within the membrane and fluid material sealed within the pouches, wherein each of the pouches is disc-shaped and has a generally flat form with a height less than a width.

2. The breast implant of claim 1, wherein the fluid in the pouches is saline solution.

3. The breast implant of claim 1 wherein the pouches have round peripheries.

4. The breast implant of claim 1, wherein the pouches are loosely positioned within the outer membrane.

5. The breast implant of claim 4, wherein the pouches fill the membrane.

6. The breast implant of claim 5, wherein the fluid is saline solution and encapsulation of the saline solution in the small pouches effectively increases apparent viscosity of the saline solution in the entire implant.

7. The breast implant of claim 1, wherein the pouches form a skin around the encapsulated fluid.

8. The breast implant of claim 1, wherein each of the pouches is a small bag of about 2 to 20 cubic centimeters in volume, and wherein about 2 to 20 cubic centimeters of saline solution is encapsulated in each pouch for increasing apparent viscosity of saline, and enhancing the feel of the implants and providing a more natural feel, wherein each of the bags is disc-shaped for increasing surface area to volume ratio of the bags and making the bags relatively rupture-proof, and wherein from about 10 to 80 disc-shaped bags are held within the outer membrane.

9. The breast implant of claim 8, wherein about 40 to 48 bags each contain about 5 to 10 cubic centimeters of fluid.