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Title:
ARTIFICIAL VITREOUS BODY CAPSULAR BAG AND ITS MAKING PROCESS
Document Type and Number:
WIPO Patent Application WO/2007/085131
Kind Code:
A1
Abstract:
An artificial vitreous body capsular bag and its making process. The bag is mostly formed from the material of polysiloxane. The thickness of the wall of the bag is less than 50μm, the Shore hardness of the bag is 30-40D,the tensile strength is 4-7Mpa, the haemolytic rate of the material is less than 5%,the light transmission is higher than 90%, the haze value is less than 0.1%, the elongation is more than 1000% and the tear strength is 30-40KN/m.The making process involves the following steps: dip an eye mould into the gel immerging liquid, then lift up the mold after the gel is attached to the mould,and repeat the above said step 3-6 times; heat the immerged mould in order to make it sulfurized and settled; remove the settled spherical exterior bag from the eye mould.

Inventors:
GAO QIANYING (CN)
MU SHANSONG (CN)
Application Number:
PCT/CN2006/000311
Publication Date:
August 02, 2007
Filing Date:
March 02, 2006
Export Citation:
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Assignee:
ZHONGSHAN OPHTHALMIC CT SUN YA (CN)
GAO QIANYING (CN)
MU SHANSONG (CN)
International Classes:
B29D11/02; A61F2/16; G02B1/04; G02C7/04
Domestic Patent References:
WO2004055113A12004-07-01
Foreign References:
US6361561B12002-03-26
CN1379644A2002-11-13
CN1684723A2005-10-19
CN1436062A2003-08-13
CN1323400A2001-11-21
CN1082205A1994-02-16
US20050218536A12005-10-06
CN1483388A2004-03-24
US20050113911A12005-05-26
Attorney, Agent or Firm:
GUANGZHOU SCIHEAD PATENT AGENT CO., LTD. (Huihua Commercial & Trade Building No. 80, XianLie Zhong Roa, Guangzhou Guangdong 0, CN)
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