摘要:
Methods and systems for sterilization of objects by gas-cluster ion-beam (GCIB) irradiation are disclosed. The sterilization may be in conjunction with other beneficial GCIB surface processing of the objects. The objects may be medical devices or surgically implantable medical prostheses.
摘要:
Methods and systems for sterilization of objects by gas-cluster ion-beam (GCIB) irradiation are disclosed. The sterilization may be in conjunction with other beneficial GCIB surface processing of the objects. The objects may be medical devices or surgically implantable medical prostheses.
摘要:
A method of manufacturing a drug delivery system uses gas cluster ion beam irradiation on an outer surface of a member to determine one or more characteristics of the drug delivery system.
摘要:
Irradiation of a surface of a material with a gas cluster ion beam modifies the wettability of the surface. The wettability may be increased or decreased dependent on the characteristics of the gas cluster ion beam. Improvements in wettability of a surface by the invention exceed those obtained by conventional plasma cleaning or etching. The improvements may be applied to surfaces of medical devices, such as vascular stents for example, and may be used to enable better wetting of medical device surfaces with liquid drugs in preparation for adhesion of the drug to the device surfaces. A mask may be used to limit processing to a portion of the surface. Medical devices formed by using the methods of the invention are disclosed.
摘要:
Methods and systems for the improvement of a crystalline and/or poly-crystalline surgical blade include gas cluster ion beam irradiation of the blades in order to smooth; or to sharpen; or to reduce the brittleness and thus reduce susceptibility of the blade to crack, chip, or fracture; or to render the blades hydrophilic. Crystalline or poly-crystalline surgical blade (silicon for example) having a thin film cutting edge with improved properties.
摘要:
Irradiation of a surface of a material with a gas cluster ion beam modifies the wettability of the surface. The wettability may be increased or decreased dependent on the characteristics of the gas cluster ion beam. Improvements in wettability of a surface by the invention exceed those obtained by conventional plasma cleaning or etching. The improvements may be applied to surfaces of medical devices, such as vascular stents for example, and may be used to enable better wetting of medical device surfaces with liquid drugs in preparation for adhesion of the drug to the device surfaces. A mask may be used to limit processing to a portion of the surface. Medical devices formed by using the methods of the invention are disclosed.
摘要:
A method of treating a surface of a silicon substrate forms an accelerated gas cluster ion beam of carbon atoms, promotes fragmentation and/or dissociation of gas cluster ions in the beam, removes charged particles from the beam to form a neutral beam, and treats a portion of a surface of the silicon substrate by irradiating it with the neutral beam. A silicon substrate surface layer of SiCX (0.05
摘要:
Irradiation of a surface of a material with a gas cluster ion beam modifies the wettability of the surface. The wettability may be increased or decreased dependent on the characteristics of the gas cluster ion beam. Improvements in wettability of a surface by the invention exceed those obtained by conventional plasma cleaning or etching. The improvements may be applied to surfaces of medical devices, such as vascular stents for example, and may be used to enable better wetting of medical device surfaces with liquid drugs in preparation for adhesion of the drug to the device surfaces. A mask may be used to limit processing to a portion of the surface. Medical devices formed by using the methods of the invention are disclosed.
摘要:
A multi-layer drug coated medical device such as for example an expandable vascular drug eluting stent is formed by vacuum pulse spray techniques wherein each layer is irradiated to improve adhesion and/or drug elution properties prior to formation of subsequent layers. Layers may be homogeneous or of diverse drugs. Layers may incorporate a non-polymer elution-retarding material. Layers may alternate with one or more layers of non-polymer elution-retarding materials. Polymer binders and/or matrices are not used in the formation of the coatings, yet the pure drug coatings have good mechanical and elution rate properties. Systems, methods and medical device articles are disclosed.