continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6617/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :30/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : COATING SUITABLE FOR SURGICAL INSTRUMENTS
(51) International classification :C04B 28/26 (71)Name of Applicant :
(31) Priority Document No :60/762,375
1)TEAM MEDICAL. INC.
(32) Priority Date :25/01/2006
Address of Applicant :300 15TH STREET, BOULDER,
(33) Name of priority country :U.S.A.
COLORADO 80302, U.S.A U.S.A.
(86) International Application No :PCT/US2007/061083 (72)Name of Inventor :
Filing Date
:25/01/2007
1)HEIM, WARREN PAUL
(87) International Publication No :WO 2007087618 2)BRASSELL, JAMES
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
An improved coating and devices using said coating are disclosed The coating is applied in a liquid form and then dried or otherwise
cured to form a durable adherent coating resistant to high temperatures and in at least one embodiment possessing hydrophobic
properties. In one aspect of the invention the coating formulation contains at least in part an aqueous formulation of silica, such as
colloidal silica, and one or more fillers, such as inorganic fillers, and sufficient base, such as potassium hydroxide, to have a pH
exceeding about 10.5 during at least part of the formulation process. In another aspect of the invention the coating formulation
contains one or more substances that affect its surface free energy such as by reducing the surface free energy to make the cured
coating hydrophobic, such surface free energy altering compounds include silanes containing halogens such as fluorine or chlorine and
in particular silanes containing one or more hydrolyzable groups attached to at least one silicon atom and a group containing one or
more halogens such as chlorine or fluorine. In another aspect of the invention is a surgical instrument at least partially covered by a
coating using the formulation of the present invention at least part of such instrument powered by electricity to produce a
predetermined surgical effect.
No. of Pages : 30 No. of Claims : 60
The Patent Office Journal 24/10/2008 26221