Method and apparatus for coating interior surfaces of medical devices
AssigneeCook Incorporated
InventorsBrian C. Case, Darin G. Schaeffer
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Abstract
A coating can be applied to an endolumenal wall of a medical device by positioning an optical fiber within the lumen, providing a photo-activated chemical to contact the endolumenal wall, supplying the optical fiber with radiation capable of activating the chemical within the lumen, and withdrawing the optical fiber from the lumen at a controlled rate while the radiation is being emitted from the optical fiber to activate the chemical in close proximity to the endolumenal wall.
Claims19
A method of coating an endolumenal wall of a lumen of a previously manufactured medical device comprising the steps of:
- positioning a distal end of an optical fiber within the lumen of the previously manufactured medical device,
- surrounding the optical fiber with a fluid-carrying channel having an outer wall with a distal opening adjacent the optical fiber distal end,
- providing a photo-activated chemical within the fluid-carrying channel to be dispensed onto the endolumenal wall of the lumen,
- coupling the optical fiber to a source of radiation that can be carried by the optical fiber to the distal end of the optical fiber, the radiation being capable of activating the chemical within the lumen, and
- withdrawing the optical fiber and fluid-carrying channel simultaneously from the lumen at a controlled rate while the radiation is being emitted from the optical fiber distal end to activate the chemical in close proximity to the endolumenal wall.
A method of coating an endolumenal wall of a lumen of a previously manufactured medical device comprising the steps of:
- positioning a distal end of an optical fiber within the lumen of said previously manufactured medical device, the optical fiber coupled a source of radiation that can be carried by the optical fiber to the distal end of the optical fiber,
- surrounding the optical fiber with a fluid-carrying channel within the lumen of said previously manufactured medical device, the fluid-carrying channel having an outer wall with a distal end and having an aperture receiving the optical fiber, the fluid-carrying channel including at least one opening through the outer wall, the at least one opening in communication with the lumen and the fluid-carrying channel, the distal end of the optical fiber extending past the opening,
- providing a photo-activated chemical within the fluid-carrying channel to be dispensed onto the endolumenal wall of the lumen through the at least one opening,
- emitting radiation from the optical fiber distal end, the radiation configured to activate the chemical in close proximity to the endolumenal wall, and
- withdrawing the optical fiber and fluid-carrying channel simultaneously from the lumen of said previously manufactured medical device at a controlled rate during the emitting step.
Dependencies are inferred from the claim text.