IP Library Granted Patent US 9,625,065
Granted Patent B2
US 9,625,065 · App. 11/661,650 · Granted Apr 18, 2017

Plastics for medical technical devices

Inventors: Karl-Andreas Feldhahn (Hamburg, DE); Gerd Schulz (Schenefeld, DE); Martin Eifler (Glückstadt, DE); Arnold Frerichs (Buxtehude, DE); Thomas Marx (Hamburg, DE); Elmar Vitt (Rotenburg, DE)
Assignee: Loewenstein Medical Technology S.A.
F16L11/12A61M16/06A61M16/0633A61M16/0683A61M16/12A61M16/16A61M2202/20A61M2205/0238Y10T428/26
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Quick Facts
Patent No.
US 9,625,065
App. No.
11/661,650
Granted
Apr 18, 2017
Kind
B2
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.

Claims (67)

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. The molded body of claim 42 , wherein the particles comprise silicates.

44. The molded body of claim 42 , wherein the particles are fixed to the at least one or more portions of the surface by a polymeric matrix.

45. The molded body of claim 44 , wherein the polymeric matrix comprises at least one thermoplastic, elastomeric, or thermosetting material.

46. The molded body of claim 43 , wherein the particles are fixed to the at least one or more portions of the surface by a polymeric matrix.

47. The molded body of claim 46 , wherein the polymeric matrix comprises at least one thermoplastic, elastomeric, or thermoplastic material.

48. The molded body of claim 42 , 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.

49. The molded body of claim 42 , 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.

50. The molded body of claim 42 , 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.

51. The molded body of claim 42 , wherein the elevations have heights of from 5 nm to 200 μm.

52. The molded body of claim 51 , wherein the elevations are separated by a distance of from 5 nm to 200 μm.

53. The molded body of claim 42 , wherein the elevations have heights of from 20 nm to 25 μm.

54. The molded body of claim 53 , wherein the elevations are separated by a distance of from 20 nm to 25 μm.

55. The molded body of claim 42 , wherein the elevations have heights of from 50 nm to 4 μm.

56. The molded body of claim 55 , wherein the elevations are separated by a distance of from 50 nm to 4 μm.

57. The molded body of claim 42 , wherein at least a portion or section of the surface of the molded body has a surface energy of less than 35 mN/m.

58. A method of producing the molded body of claim 1 , wherein the method comprises injection molding of plastic material to form a protruding edge of a face mask that is configured for resting on a patient's face, and providing at least one or more portions of a surface of the protruding edge with particles to form elevations on the one or more portions of the surface.

59. The method of claim 58 , wherein the particles are fixed to the at least one or more portions of the surface by a polymeric matrix.

60. The method of claim 59 , wherein the polymeric matrix comprises at least one thermoplastic, elastomeric, or thermosetting material.

61. The method of claim 58 , 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.

62. The method of claim 58 , wherein the plastic material comprises silicone.

63. The method of claim 58 , 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.

64. The method of claim 58 , wherein the particles comprise silicates.

65. The method of claim 58 , wherein the particles are 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.

66. The method of claim 58 , wherein the particles are 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.

67. The method of claim 58 , 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.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 11, 2017
From: LOEWENSTEIN MEDICAL TECHNOLOGY GMBH + CO. KG
To: LOEWENSTEIN MEDICAL TECHNOLOGY S.A.
Reel/Frame 040950/0559 →
CHANGE OF NAME Recorded Nov 15, 2016
From: WEINMANN GERAETE FUER MEDIZIN GMBH + CO. KG
To: LOEWENSTEIN MEDICAL TECHNOLOGY GMBH + CO. KG
Reel/Frame 040617/0177 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 27, 2007
From: FELDHAHN, KARL-ANDREAS; SCHULZ, GERD; EIFLER, MARTIN; FRERICHS, ARNOLD; MARX, THOMAS; VITT, ELMAR
To: WEINMANN GERATE FUR MEDIZIN GMBH & CO. KG
Reel/Frame 019015/0130 →
Priority Claims (3)
DE 10 2004 043 208 · Sep 3, 2004 · national
DE 10 2005 013 079 · Mar 18, 2005 · national
DE 10 2005 027 724 · Jun 14, 2005 · national
Continuity (1)
Related Publication 20080032119A1 · Feb 7, 2008