Method of manufacturing antimicrobial implants of polyetheretherketone
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-002/44
B29C-045/00
A61L-027/18
A61L-027/54
B29B-013/02
B29B-013/06
B29C-043/00
B29C-043/26
B29C-043/32
B29C-043/52
B29K-071/00
B29K-105/00
B29K-709/02
B29L-031/00
B29K-105/04
B29K-105/12
B29K-105/16
B29K-307/04
B29K-505/14
출원번호
US-0471329
(2014-08-28)
등록번호
US-9132576
(2015-09-15)
발명자
/ 주소
Crudden, Joseph J.
Johns, Derrick
출원인 / 주소
DiFusion Technologies, Inc.
대리인 / 주소
Nields, Lemack & Frame, LLC
인용정보
피인용 횟수 :
2인용 특허 :
63
초록▼
Methods of fabricating implantable medical devices, preferably with PEEK, having antimicrobial properties, are disclosed. The antimicrobial effect is produced by incorporating ceramic particles containing antimicrobial metal cations into molten PEEK resin, which is subsequently allowed to cool and s
Methods of fabricating implantable medical devices, preferably with PEEK, having antimicrobial properties, are disclosed. The antimicrobial effect is produced by incorporating ceramic particles containing antimicrobial metal cations into molten PEEK resin, which is subsequently allowed to cool and set in its final shape achieved by injection molding, cutting and machining or other techniques.
대표청구항▼
1. A method of making a load-bearing antimicrobial implant, comprising drying polyetheretherketone resin to a residual moisture content of less than 0.1% moisture by weight, heating said dried polyetheretherketone resin to a temperature effective to melt said resin, blending into said molten resin a
1. A method of making a load-bearing antimicrobial implant, comprising drying polyetheretherketone resin to a residual moisture content of less than 0.1% moisture by weight, heating said dried polyetheretherketone resin to a temperature effective to melt said resin, blending into said molten resin a metal zeolite that has been dried to a residual moisture content of less than 0.1% moisture by weight, cooling said blend, forming said blend into said implant, and roughening the surface of said implant. 2. The method of claim 1, wherein said temperature effective to melt said resin is from about 360 to about 400° C. 3. The method of claim 1, wherein said metal zeolite comprises silver zeolite. 4. The method of claim 1, wherein said resin is dried by heating it to a temperature between about 120° and 130° C. 5. The method of claim 1, wherein said zeolite is dried at a temperature of about 400° C. 6. The method of claim 1, wherein the amount of zeolite blended into said resin is from about 0.01 to about 20.0 wt %. 7. The method of claim 1, wherein said polyetheretherketone is porous. 8. The method of claim 7, wherein said polyetheretherketone has a porosity between 50% and 85% by volume. 9. The method of claim 1, wherein said polyetheretherketone is reinforced. 10. The method of claim 1, wherein said polyetheretherketone is reinforced with carbon fiber. 11. The method of claim 1, wherein the metal in said metal zeolite is selected from the group consisting of silver, copper, zinc, mercury, tin, lead, gold, bismuth, cadmium, chromium and thallium. 12. The method of claim 1, wherein said surface roughness is created by abrasive blasting.
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이 특허에 인용된 특허 (63)
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Crudden, Joseph J.; Hafiz, Jami; Deaton, James E.; Pepper, John R.; Johns, Derrick, Method of manufacturing antimicrobial implants of polyetheretherketone.
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