Medical device coating methods and devices
AssigneeSciMed Life Systems, Inc.
InventorsSheng-ping Zhong, Vladimir B. Tsukernik
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Abstract
Devices and methods for applying a polymeric coating to a medical device. The steps of the coating process including applying a liquid polymeric material to the surface of the medical device, then directing a stream of gas to impinge on the surface of the medical device. Excess liquid polymeric material is removed from the surface of the medical device. The devices used in the coating process and the coated medical device are also part of this invention.
Claims20
A method of applying a polymeric coating to a medical device, the method comprising the steps of:
- providing a medical device having a plurality of surfaces;
- applying a polymeric material to the plurality of surfaces of the medical device;
- and
- directing a stream of gas to impinge on the plurality of surfaces of the medical device,
- wherein excess liquid polymeric material is removed from the plurality of surfaces of the medical device.
A method of applying a polymeric coating to a medical device, the method comprising the steps of:
- providing a medical device having a plurality of surfaces;
- providing a generally tubular member defining a lumen and at least one aperture in fluid communication with the lumen;
- applying a polymeric material to the plurality of surfaces of the medical device;
- positioning the tubular member proximate the medical device;
- and
- releasing a stream of gas through the generally tubular member so that it impinges on the plurality of surfaces of the medical device, wherein excess polymeric material is removed from the surface of the medical device.
A method of applying a polymeric coating to a stent, the method comprising the steps of:
- providing a stent having a plurality of surfaces defined by a plurality of interconnecting struts with open interstitial spaces therebetween;
- the stent including a lumen extending through at least a portion thereof;
- providing a generally tubular member defining a lumen and at least one aperture in fluid communication with the lumen;
- applying a polymeric material to the plurality of surfaces of the stent;
- positioning the tubular member inside the lumen of the stent;
- releasing a compressed gas to atmosphere through the tubular member;
- and
- wherein, gas exits the tubular member through the at least one aperture and travels through the interstitial spaces of the stent.
Dependencies are inferred from the claim text.