US5468562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallized polymeric implant with ion embedded coating
Assignee: Spire Corp
•
Filing: 1994-02-10
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Granted: 1995-11-21
•
Expires: 2014-02-10
Abstract
Abstract Surface metallized polymeric implants, such as cannula, needles, catheters, connectors and the like, a dry coating method therefor and apparatus to accomplish the same are disclosed. The metallization of the implants is intended to improve their biocompatibility and to reduce infusion-associated phlebitis and infection. The method essentially includes the dry coating of the outside surfaces of the polymeric implants with a metallic thin film. The apparatus to effect the dry coating method essentially includes a vacuum chamber, an evaporator and an ion source mounted in operative association within the chamber, and means for rotatably mounting a plurality of polymeric implants for exposure to the evaporator and the ion source.
Inventors
- 👤 Mohammad Farivar
- 👤 Piran Sioshansi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:52
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; C23C14/564; C23C14/566; A; A61; A61L; A61L29/00; A61L29/08; A61L29/10; A61L31/00; A61L31/08; A61L31/082; C23C14/06; C23C14/14; C23C14/20; C23C14/50; C23C14/505; A61M; A61M25/00; A61M25/0043; A61M2025/0056; Y; Y10; Y10S; Y10S604/00; Y10S604/905; Y10T; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/1317; Y10T428/1321; Y10T428/1328; Y10T428/1331; Y10T428/1352; Y10T428/1355; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
94 words
A biomedical device capable of insertion within a subject, the device formed from a unitary flexible polymeric material having an outer surface, the outer surface being coated with an infection reducing material by ion beam assisted deposition, wherein the coating includes atoms of the infection reducing material embedded in the outer surface only partially through the polymeric material to a predetermined depth from the outer surface, and wherein the coating is a substantially uniform, dry coating having a thickness extending outward from the outer surface of between about 0.5 microns and about 10 microns.
Claim 2
Dependent Claim
94 words
A biomedical device capable of insertion within a subject, the device formed from a unitary flexible polymeric material having an outer surface, the outer surface being coated with an infection reducing material by ion beam assisted deposition, wherein the coating includes atoms of the infection reducing material embedded in the outer surface only partially through the polymeric material to a predetermined depth from the outer surface, and wherein the coating is a substantially uniform, dry coating having a thickness extending outward from the outer surface of between about 0.5 microns and about 10 microns.
Claim 3
Dependent Claim
14 words
The biomedical device of claim 1 wherein the infection reducing material comprises a metal.
Claim 4
Dependent Claim
29 words
The biomedical device of claim 2 wherein the metal comprises at least one of silver, zirconium, tantalum, carbon, chromium, aluminum, nickel. tungsten, molybdenum, platinum, iridium, gold and stainless steel.
Claim 5
Dependent Claim
23 words
The biomedical device of claim 1 wherein the polymeric material comprises at least one of polyurethane, polyethylene, silicone, polytetrafluoroethylene, polyvinyl chloride and polysulfide.
Claim 6
Dependent Claim
26 words
The biomedical device of claim 1 wherein the device is one of a catheter, a percutaneous connector, a fluid delivery tube, and a fluid removal tube.
Claim 7
Dependent Claim
36 words
The biomedical device of claim, 1 wherein the device is a tubular structure having an outer surface, the outer surface being at least partially coated with the infection reducing material by the ion beam assisted deposition.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-11-20 | 1999-05-22 | 1999-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-11-20 | 2003-05-22 | 2003-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-11-20 | 2007-05-22 | 2007-11-21 | $7700.00 | Window Closed / Lapsed |