Plastics for medical technical devices

Patent metadata

Field	Value
Publication number	US-9625065-B2
Application number	US-66165005-A
Country	US
Kind code	B2
Filing date	Jul 22, 2005
Priority date	Sep 3, 2004
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

The invention relates to a molded body, especially for parts, top shells, inner elements, accessories and components of devices, for molding materials, filling materials for medical technical devices and/or medical products. The inventive molded body is characterized by being in at least some sections germ-repellant. The invention also relates to a medical device which comprises at least one molded body according to the invention. The invention finally relates to a method for producing the inventive molded body.

First claim

The invention claimed is:

1. A molded body, wherein the molded body is a protruding edge for a face mask and is made of plastic material, and wherein a surface of the molded body comprises elevations formed by particles fixed on at least one or more portions of the surface.

2. The molded body of claim 1 , wherein the protruding edge is configured for resting on a patient's face.

3. The molded body of claim 1 , wherein the plastic material comprises one or more polymers selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polystyrene, polycarbonate, cellophane, cellulose acetate, polyolefins, fluorocarbon resins, polyhydroxyethyl methacrylate, polymethyl methacrylate, polysiloxanes, polyethers, polyesters, polyacetals, polyvinyls, polyethersilicones, polyurethanes, natural and synthetic rubber, silicone, latex, ABS resin, acrylic resins, triacetates, vinylides, and rayon.

4. The molded body of claim 1 , wherein the plastic material comprises silicone.

5. The molded body of claim 1 , wherein the molded body is injection molded.

6. The molded body of claim 1 , wherein the particles comprise particles selected from the group consisting of silicates, minerals, metal oxides, mixed-metal oxides, metal powders, silicic acids, pigments, and polymers.

7. The molded body of claim 6 , wherein the particles comprise silicates.

8. The molded body of claim 1 , wherein the particles have hydrophobic properties.

9. The molded body of claim 1 , wherein the particles are fixed to the at least one or more portions of the surface by a polymeric matrix.

10. The molded body of claim 9 , wherein the polymeric matrix comprises at least one thermoplastic, elastomeric, or thermosetting material.

11. The molded body of claim 1 , wherein the particles comprise antiseptic particles.

12. The molded body of claim 1 , wherein the particles comprise hydrophobic particles having a diameter of from 0.02 μm to 100 μm.

13. The molded body of claim 1 , wherein the particles comprise particles with antimicrobial properties having a diameter of from 0.05 to 2,000 nm.

14. The molded body of claim 1 , wherein the particles comprise microparticles having a diameter of from 0.02 μm to 100 μm.

15. The molded body of claim 14 , wherein the microparticles have a diameter of from 0.1 μm to 50 μm.

16. The molded body of claim 14 , wherein the microparticles have a diameter of from 0.1 μm to 10 μm.

17. The molded body of claim 1 , wherein the particles have been applied to the at least one or more portions of the surface of the molded body in a solvent by one or more of spraying, doctor blade coating, dropping or immersing.

18. The molded body of claim 1 , wherein the particles have been applied to the at least one or more portions of the surface of the molded body by pressing them onto the at least one or more portions.

19. The molded body of claim 1 , wherein the particles have been applied to the at least one or more portions of the surface of the molded body by providing a mold with the particles before injection molding and pressing the particles onto the at least one or more portions during the injection molding.

20. The molded body of claim 1 , wherein the elevations have heights of from 5 nm to 200 μm.

21. The molded body of claim 20 , wherein the elevations are separated by a distance of from 5 nm to 200 μm.

22. The molded body of claim 1 , wherein the elevations have heights of from 20 nm to 25 μm.

23. The molded body of claim 22 , wherein the elevations are separated by a distance of from 20 nm to 25 μm.

24. The molded body of claim 1 , wherein the elevations have heights of from 50 nm to 4 μm.

25. The molded body of claim 24 , wherein the elevations are separated by a distance of from 50 nm to 4 μm.

26. The molded body of claim 1 , wherein at least a portion or section of the surface of the molded body has a surface energy of less than 35 mN/m.

27. A molded body, wherein the molded body is a protruding edge for a face mask, is made of one or more polymers selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polystyrene, polycarbonate, cellophane, cellulose acetate, polyolefins, fluorocarbon resins, polyhydroxyethyl methacrylate, polymethyl methacrylate, polysiloxanes, polyethers, polyesters, polyacetals, polyvinyls, polyethersilicones, polyurethanes, natural and synthetic rubber, silicone, latex, ABS resin, acrylic resins, triacetates, vinylides, and rayon, and wherein at least one or more portions of a surface of the molded body comprise elevations formed by particles which comprise particles selected from the group consisting of silicates, minerals, metal oxides, mixed-metal oxides, metal powders, silicic acids, pigments, and polymers.

28. The molded body of claim 27 , wherein the one or more polymers comprise silicone.

29. The molded body of claim 28 , wherein the particles comprise silicates.

30. The molded body of claim 27 , wherein the particles are fixed to the at least one or more portions of the surface by a polymeric matrix.

31. The molded body of claim 30 , wherein the polymeric matrix comprises at least one thermoplastic, elastomeric, or thermosetting material.

32. The molded body of claim 27 , wherein the particles have been applied to the at least one or more portions of the surface of the molded body in a solvent by one or more of spraying, doctor blade coating, dropping or immersing.

33. The molded body of claim 27 , wherein the particles have been applied to the at least one or more portions of the surface of the molded body by pressing them onto the at least one or more portions.

34. The molded body of claim 27 , wherein the particles have been applied to the at least one or more portions of the surface of the molded body by providing a mold with the particles before injection molding and pressing the particles onto the at least one or more portions during the injection molding.

35. The molded body of claim 27 , wherein the elevations have heights of from 5 nm to 200 μm.

36. The molded body of claim 35 , wherein the elevations are separated by a distance of from 5 nm to 200 μm.

37. The molded body of claim 27 , wherein the elevations have heights of from 20 nm to 25 μm.

38. The molded body of claim 37 , wherein the elevations are separated by a distance of from 20 nm to 25 μm.

39. The molded body of claim 27 , wherein the elevations have heights of from 50 nm to 4 μm.

40. The molded body of claim 39 , wherein the elevations are separated by a distance of from 50 nm to 4 μm.

41. The molded body of claim 27 , wherein at least a portion or section of the surface of the molded body has a surface energy of less than 35 mN/m.

42. A molded body, wherein the molded body is a protruding edge for a face mask, is made of silicone in at least one or more sections thereof, and has a surface at least one or more portions of which comprise elevations formed by particles which comprise particles selected from the group consisting of silicates, minerals, metal oxides, mixed-metal oxides, metal powders, silicic acids, pigments, and polymers.

43

Assignees

• Feldhahn Karl-Andreas
• Schulz Gerd
• Eifler Martin
• Frerichs Arnold
• Marx Thomas
• Vitt Elmar
• Loewenstein Medical Tech Sa

Inventors

• Feldhahn Karl-Andreas
• Schulz Gerd
• Eifler Martin
• Frerichs Arnold
• Marx Thomas
• Vitt Elmar

Classifications

• A61M2202/20

  Pathogenic agents · CPC title

• Y10T428/26

  Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension · CPC title

• A61M16/0825

  with ball-sockets · CPC title

• A61M16/0633

  with forehead support · CPC title

• A61M2205/0238

  the material being a coating or protective layer · CPC title