Texturized covering for implants

• US 5,354,338 A
• Filed: 02/22/1991
• Issued: 10/11/1994
• Est. Priority Date: 02/22/1991
• Status: Expired due to Fees

• Current Assignee: Walter J. Ledergerber
• Original Assignee: Walter J. Ledergerber
• Inventors: Ledergerber, Walter J.
• Primary Examiner(s): ISABELLA, DAVID J
• Application Number:
  US07/660,291
• Time in Patent Office: 1,327 Days
• Field of Search: 623/8.66, 623/1, 623/11, 623/12, 264/226, 264/212, 264/1.1, 264/2.5, 264/220, 264/225, 600/36
• US Class Current: 623/8
• CPC Class Codes: A61F 2/0077 Special surfaces of prostheses, e.g. for improving ingrowth A61F2/30767 takes precedence
• CPC Class Codes: A61F 2/12 Mammary prostheses and implants

Abstract

Methods for manufacturing texturized coverings for implants into the human body are described which generate small wells or channels on the exterior surface of the implant. Optionally, the texturized surface may be formed by affixing globules on the exterior surface of a mandrel or the interior surface of a mold, which is then coated with silicone rubber and cured. The surface may be optionally microtexturized, for example, by microtexturizing the surface of the globules by etching or sand blasting.

Claims

1. A method for forming a texturized coating for an implant comprising the steps of:

affixing microtexturized globules onto a mandrel,

coating the globules and mandrel with silicone rubber, curing the rubber, and

removing the cured rubber from the mandrel and globules.

3. The method for forming a texturized coating for an implant of claim 1 wherein the microtexturized globules are chosen from the following group:

gold, platinum, tin, aluminum, brass, bronze and pyrex.

4. The method for forming a texturized coating for an implant of claim 1 wherein the globules are microtexturized by one of the following processes:

sand blasting, etching, electrical discharge machining, ultrasonic impact machining, heat treating, super-cooled treating, laser machining, fracturing, ion beam distressing, and chemical leaching of calcareous inclusions.

2. A method for forming a texturized coating for an implant comprising the steps of:

affixing microtexturized globules to the inside of a mold;

coating the globules and mold with silicone rubber,

curing the rubber, and

removing the cured rubber from the mold and globules.

5. The method for forming a texturized coating for an implant of claim 2 wherein the microtexturized globules are chosen from the following group:

gold, platinum, tin, aluminum, brass, bronze and pyrex.

6. The method for forming a texturized coating for an implant of claim 2 wherein the globules are microtexturized by one of the following processes:

sand blasting, etching, electrical discharge machining, ultrasonic impact machining, heat treating, super-cooled treating, laser machining, fracturing, ion beam distressing, and chemical leaching of calcareous inclusions.