Stent Coating Apparatus and Method
First Claim
1. A coating system comprising:
- a hollow shaft, the hollow shaft being rotatable;
a cylinder, a portion of the cylinder being disposed within the hollow shaft;
a pin, at least a portion of the pin being disposed within the hollow shaft;
a coating applicator, the coating applicator engaged to the hollow shaft, the coating applicator configured to deposit at least one droplet of a coating material onto a medical device being supported by the pin;
wherein rotation of the hollow shaft rotates a nozzle of the coating applicator.
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Accused Products
Abstract
A coating system for coating a stent with a medication, the stent being mounted on a balloon on a catheter, the system having an applicator device including a fluid ejection nozzle, a reservoir and a pressure wave actuating arrangement. The nozzle has an opening configured for dispensing the medication on to the stent. The reservoir is in fluid communication with the nozzle. The nozzle and the reservoir are configured for generating a negative pressure for preventing leakage of the medication via the opening. The pressure wave actuating arrangement is configured for generating a pressure wave in the nozzle for causing fluid displacement in the nozzle, thereby ejecting a droplet of the medication from the opening. The negative pressure of the nozzle and the reservoir are configured in order that the remaining medication is drawn toward the opening to replace the medication dispensed with the droplet.
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Citations
16 Claims
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1. A coating system comprising:
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a hollow shaft, the hollow shaft being rotatable; a cylinder, a portion of the cylinder being disposed within the hollow shaft; a pin, at least a portion of the pin being disposed within the hollow shaft; a coating applicator, the coating applicator engaged to the hollow shaft, the coating applicator configured to deposit at least one droplet of a coating material onto a medical device being supported by the pin; wherein rotation of the hollow shaft rotates a nozzle of the coating applicator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A coating system comprising:
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a hollow shaft, the hollow shaft configured to rotate; a pin, at least a portion of the pin disposed within the hollow shaft; a coating applicator, the coating applicator disposed within the hollow shaft, the coating applicator configured to deposit at least one droplet of a coating material onto a medical device being supported by the pin; wherein rotation of the hollow shaft rotates a nozzle of the coating applicator.
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16. A coating system comprising:
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a hollow shaft; a cylinder, a portion of the cylinder being disposed within the hollow shaft; a coating applicator having a nozzle; wherein the hollow shaft is movable relative to the cylinder and the hollow shaft moves the nozzle of the coating applicator along a surface of an object to be coated.
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Specification