IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0171847
(2008-07-11)
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등록번호 |
US-8231926
(2012-07-31)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Neal, Gerber & Eisenberg LLP
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인용정보 |
피인용 횟수 :
4 인용 특허 :
193 |
초록
▼
A medical device, such as a medical wire, which includes a coating applied to the surface of the medical wire. The coating includes a base layer bonded to the surface of the medical wire and an at least partially transparent low-friction top coat applied to the base layer. The base layer includes he
A medical device, such as a medical wire, which includes a coating applied to the surface of the medical wire. The coating includes a base layer bonded to the surface of the medical wire and an at least partially transparent low-friction top coat applied to the base layer. The base layer includes heat activated pigments that change color when heated above a color shifting temperature. In one embodiment, the color of the pigment in one area contrasts with the color of the pigment in an adjacent area without otherwise affecting the low-friction surface of the coating. The areas of different color created in locations along the length of the low-friction coated medical wire form markings which, as an example, enable a surgeon to determine the length of the medical wire inserted into a body by observing the markings on the portion of the marked medical wire located exterior to the body.
대표청구항
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1. A method of manufacturing a coated medical device, said method comprising: (a) applying a first coating to an outer surface of a medical device, said first coating including: (i) a first binder,(ii) a first pigment of a first color, and(ii) a plurality of particles of a low-friction material;(b)
1. A method of manufacturing a coated medical device, said method comprising: (a) applying a first coating to an outer surface of a medical device, said first coating including: (i) a first binder,(ii) a first pigment of a first color, and(ii) a plurality of particles of a low-friction material;(b) curing said first coating;(c) applying a second, different coating to the cured first coating, said second coating including: (i) a second binder,(ii) a second pigment of a second color, said second color being of a contrasting hue than the first color, and(iii) a plurality of particles of the low-friction material;(d) curing said second coating; and(e) heating at least one portion of the outer surface of the medical device such that a portion of said cured second coating is removed to cause said at least one portion of the outer surface of the medical device to have said first color, and at least another portion of the outer surface of the medical device to have said second color. 2. The method of claim 1, wherein heating the at least one portion of the outer surface of the medical device includes heating a plurality of spaced-apart portions of the medical device. 3. The method of 1, which includes heating the at least one portion of the outer surface of the medical device using an energy source selected from the group consisting of: a radiant heat, induction energy, hot air, open flame, at least one electric filament, at least one magnet, and at least one laser. 4. The method of claim 1, wherein the first pigment is selected from a group consisting of: a phthalocyanine blue, a phthalocyanine green, a diarylide yellow, a diarylide orange, a quanacridone, a naphthol, a toluidine red, a carbizole violet, a carbon black, an iron oxide red, an iron oxide yellow, a chrome oxide green, a titanium oxide white, a cadmium red, a ultramarine blue, a moly orange, a lead chromate yellow, a mixed metal oxide, a talc, a calcium carbonate, a silicate and sulfate, a silica, a mica, an aluminum hydrate and silicate, a barium sulfate a mica, a pearl pigment, a kaolin, an aluminum silicate derivative, an antomony trioxide, a metallic pigment, an aluminum flake pigment, and an iron oxide. 5. The method of claim 1, wherein the second pigment is selected from a group consisting of: a phthalocyanine blue, a phthalocyanine green, a diarylide yellow, a diarylide orange, a quanacridone, a naphthol, a toluidine red, a carbizole violet, a carbon black, an iron oxide red, an iron oxide yellow, a chrome oxide green, a titanium oxide white, a cadmium red, a ultramarine blue, a moly orange, a lead chromate yellow, a mixed metal oxide, a talc, a calcium carbonate, a silicate and sulfate, a silica, a mica, an aluminum hydrate and silicate, a barium sulfate a mica, a pearl pigment, a kaolin, an aluminum silicate derivative, an antomony trioxide, a metallic pigment, an aluminum flake pigment, and an iron oxide. 6. The method of claim 1, wherein the coating includes a plurality of interspersed anti-microbial particles. 7. The method of claim 6, wherein the anti-microbial particles are selected from the group consisting of: silver particles, glass-silver particles, silver-ceramic particles, and ceramic particles. 8. The method of claim 1, wherein the medical device is selected from the group consisting of: a medical wire, a medical guide wire, a catheter, a needle, a biopsy device, a cannula, an electrosurgical electrode, a soft tissue needle, a soft tissue tubular device, a probe, and a blade. 9. The method of claim 1, wherein the first binder is selected from the group consisting of: an epoxy, a phenoxy, a phenolic, a polyimide, a polyamide, a polyamide-amide, a polyarylsulfone, polyetheretherketone, polyetherketone, and a polyphenylene sulfide. 10. The method of claim 1, wherein the second binder is selected from the group consisting of: an epoxy, a phenoxy, a phenolic, a polyimide, a polyamide, a polyamide-amide, a polyarylsulfone, polyetheretherketone, polyetherketone, and a polyphenylene sulfide. 11. The method of claim 1, which includes applying an additional top coat to the at least one portion of the medical device with the second coating removed, said additional top coat including a plurality of particles of the low-friction material. 12. The method of claim 1, which includes applying a plurality of radiopaque particles to at least one portion of one of the cured coatings. 13. The method of claim 1, which includes applying a plurality of radiopaque particles to at least one portion of the outer surface of the medical device. 14. The method of claim 1, wherein heating the at least one portion of the outer surface of the medical device includes removing the cured second coating to form at least one marking selected from the group consisting of: at least one line parallel to a longitudinal direction of the medical device, at least one line perpendicular to the longitudinal direction of the medical device, at least one line transverse to the longitudinal direction of the medical device and at least one line substantially transverse to the longitudinal direction of the medical device.
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