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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | UP-0833902 (2004-04-27) |
등록번호 | US-7553377 (2009-07-09) |
발명자 / 주소 |
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출원인 / 주소 |
|
대리인 / 주소 |
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인용정보 | 피인용 횟수 : 27 인용 특허 : 788 |
A stent mandrel fixture for supporting a stent during the electrostatic application of a coating substance is provided.
What is claimed is: 1. A stent mandrel fixture to support a stent during application of a charged coating substance to the stent, comprising: a first mandrel component in conductive contact with the stent, the first mandrel component including a support element to contact one end of the stent and a
What is claimed is: 1. A stent mandrel fixture to support a stent during application of a charged coating substance to the stent, comprising: a first mandrel component in conductive contact with the stent, the first mandrel component including a support element to contact one end of the stent and a lock element to contact the other end of the stent; and a second mandrel component connecting the support element to the lock element and positioned at least partially within a bore of the stent, the second mandrel component being spaced from the walls of the bore, having an outermost surface exposed to the walls of the bore, and being made from a nonconductive material or being coated with a nonconductive material. 2. The fixture of claim 1, wherein the first mandrel component provides a charge differential to the stent relative to the coating substance. 3. The fixture of claim 1, wherein the first mandrel component is electrically coupled to a power source to provide a charge to the stent having a polarity opposite of the coating substance. 4. The fixture of claim 1, wherein the nonconductive material or the sleeve is capable of collecting a charge of the same polarity as the coating substance. 5. The fixture of claim 1, wherein the coating substance includes a conductive solvent. 6. The fixture of claim 1, wherein the support element or the lock element is made from a non-conductive material, is coated with a non-conductive material or has a non-conductive sleeve disposed thereon. 7. The fixture of claim 1, wherein the support element includes a coning end portion that penetrates into an end of the stent. 8. The fixture of claim 7, wherein a tip of the coning end portion is made from a non-conductive material, is coated with a non-conductive material or has a non-conductive sleeve disposed thereon. 9. The fixture of claim 1, wherein the lock element includes a coning end portion that penetrates into an end of the stent. 10. The fixture of claim 9, wherein a tip of the coning end portion is made from a non-conductive material, is coated with a non-conductive material or has a non-conductive sleeve disposed thereon. 11. The fixture of claim 1, wherein the first mandrel component is in contact with an end segment of the stent. 12. The fixture of claim 1, wherein the second mandrel component has an outer surface and the outer surface does not abut a surface of the bore. 13. A fixture to support a stent during application of a charged substance to the stent, comprising: a mandrel arm including a first section having a first diameter, the first section being in conductive contact with an end of the stent; and a second section having a second diameter, less than the first diameter, disposed coaxially with the first section, extending at least partially through a longitudinal bore of the stent and spaced from the walls of the bore, the second section being configured to receive the charged substance on its outermost surface so as to minimize or eliminate the wrap around effect of the charged substance around stent struts to prevent any substance from being applied to an inner side of the stent or to reduce the amount of substance applied to an inner side of the stent. 14. The fixture of claim 13, wherein the second section includes an element configured to collect charged particles applied to the element. 15. The fixture of claim 13, wherein the second section includes an element configured to repel charged particles applied to the element. 16. The fixture of claim 15, wherein the element is the charged substance. 17. The fixture of claim 13, wherein the first section is for applying a charge to the stent and/or to ground the stent. 18. The fixture of claim 13, wherein the mandrel arm is configured for supporting the stent as a cantilever.
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