Methods and devices for drying coated stents

• US 8,677,650 B2
• Filed: 06/15/2007
• Issued: 03/25/2014
• Est. Priority Date: 06/15/2007
• Status: Active Grant

• Current Assignee: Abbott Cardiovascular Systems Incorporated (Abbott Laboratories Incorporated), ATS Automation Tooling Systems Incorporated
• Original Assignee: Abbott Cardiovascular Systems Incorporated (Abbott Laboratories Incorporated), ATS Automation Tooling Systems Incorporated
• Inventors: Watterodt, Sidney, Park, Sang joon, Rego, David, Andreacchi, Anthony S., Chen, Yung-Ming, Currlin, Arnoldo M., Garcia, Antonio, Van Sciver, Jason, Glenn, Bryan D., Gillick, Matthew J., Papp, John E.
• Primary Examiner(s): Gravini, Steve M
• Application Number:
  US11/764,003
• Publication Number:
  US 20080307668A1
• Time in Patent Office: 2,475 Days
• Field of Search: 342/82, 343/81, 343/97, 344/13, 344/97, 118/300, 118/320, 118/500, 623/1.46, 623/1.47, 623/1.48, 126/226, 606/194, 269/48, 269/52
• US Class Current: 34/381
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: B23K 2103/42 Plastics B23K2103/16 takes precedence
• CPC Class Codes: B23K 2103/50 Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
• CPC Class Codes: B23K 26/402 involving non-metallic material, e.g. isolators
• CPC Class Codes: F26B 15/04 in a horizontal plane
• CPC Class Codes: F26B 15/18 the objects or batches of materials being carried by endless belts
• CPC Class Codes: F26B 25/003 for articles
• CPC Class Codes: F26B 25/06 Chambers, containers, or receptacles large containers having means for heating, cooling, aerating or other conditioning of contents B65D88/74
• CPC Class Codes: F26B 25/12 Walls or sides; Doors

Abstract

Various embodiments of methods and devices for drying coated stents in an oven are described herein.

Claims

1. A method of drying coated stents comprising:

conveying a plurality of coated stents mounted on a movable support member within an oven to dry a coating on the stents, wherein each one of the plurality stents is conveyed along the same path through the oven; and

periodically removing one of the plurality of stents from the movable support member and disposing an additional coated stent on the movable support member so that the additional stent can be conveyed within the oven to dry a coating on the additional coated stent.

2. The method of claim 1, wherein the stents are conveyed through movement of the movable support member within the oven, and the movement corresponds to the path along which each one of the plurality of stents is conveyed.

3. The method of claim 1, wherein the movable support member comprises a rotatable dial having a plurality of holes for supporting the plurality of stents.

4. The method of claim 3, wherein the rotatable dial rotates to position the dial so that an additional stent can be disposed in a hole on the dial or so that the dried stent can be removed from the dial.

5. The method of claim 1, further comprising transferring the removed stent to a buffer support member for supporting the removed stents.

6. The method of claim 1, further comprising transferring the additional stent from a buffer support member to the oven, the buffer support member capable of supporting additional stents awaiting transfer to the oven.

7. The method of claim 1, further comprising storing removed stents and additional stents on a buffer support member.

8. The method of claim 7, wherein the buffer support member comprises a rotatable dial that rotates to position the dial so that the removed stent can be disposed on the dial and the additional stent can be removed from the dial.

9. The device of claim 3, wherein when conveying the plurality of stents, the rotatable dial rotates to a position, and while the rotatable dial is at said position, an additional stent is placed on the dial and a dried one of the plurality of stents is removed from the dial.

10. The device of claim 3, wherein conveying the plurality of stents includes conveying each one of the plurality of stents within the oven for a residence time period, and the residence time period depends on a circumference of the rotatable dial.

11. The device of claim 1, wherein when conveying the plurality of stents, the movable support member moves to a position, and while the movable support member is at said position, an additional stent is placed on a first part of the movable support member and a dried one of the plurality of stents is removed from a second part of the movable support member.

12. The device of claim 1, wherein conveying the plurality of stents includes conveying each one of the plurality of stents within the oven for a residence time period, and the residence time period depends on a distance traveled by the stents on the path.

13. The device of claim 1, wherein conveying each one of the plurality of stents along the same path through the oven includes exposing each of the stents to the same temperature profile.

14. The device of claim 1, wherein removing of one of the plurality of stents and disposing the additional coated stent are performed automatically by an automated device.

15. A method of drying coated stents comprising:

conveying a plurality of coated stents mounted on a movable support member within an oven to dry a coating on the stents; and

periodically removing one of the plurality of stents and disposing an additional coated stent on the movable support member so that the additional stent can be conveyed within the oven to dry a coating on the additional coated stent,

wherein the movable support member comprises a rotatable dial having a plurality of holes for supporting the plurality of stents, and

wherein the rotatable dial rotates to position the dial so that an additional stent can be disposed in a hole on the dial or so that the dried stent can be removed from the dial.

16. The method of claim 15, wherein each one of the plurality stents is conveyed along the same path through the oven.

17. The method of claim 16, wherein conveying the plurality of stents includes conveying each one of the plurality of stents within the oven for a residence time period, and the residence time period depends on a distance traveled by the stents on the path.

18. A method of drying coated stents comprising:

conveying a plurality of coated stents mounted on a movable support member within an oven to dry a coating on the stents;

periodically removing one of the plurality of stents and disposing an additional coated stent on the movable support member so that the additional stent can be conveyed within the oven to dry a coating on the additional coated stent;

storing removed stents and additional stents on a buffer support member,

wherein the buffer support member comprises a rotatable dial that rotates to position the dial so that the removed stent can be disposed on the dial and the additional stent can be removed from the dial.

19. The method of claim 18, wherein each one of the plurality stents is conveyed along the same path through the oven.

20. The method of claim 19, wherein conveying the plurality of stents includes conveying each one of the plurality of stents within the oven for a residence time period, and the residence time period depends on a distance traveled by the stents on the path.