Device consisting of at least two materials

Patent metadata

Field	Value
Publication number	US-11185652-B2
Application number	US-201313958705-A
Country	US
Kind code	B2
Filing date	Aug 5, 2013
Priority date	Dec 20, 2007
Publication date	Nov 30, 2021
Grant date	Nov 30, 2021

Abstract

A medical/technical device comprised of at least two materials. The materials are connected at least partially to each other permanently by a manufacturing process.

First claim

What is claimed is:

1. A medical/technical device comprised of at least a first material and a second material which is different from the first material, wherein the medical/technical device is a patient interface in the form of a mask or is at least one of a spherical joint, a spherical joint receiving element, an exhaling system, a tape system, a tape clip, a forehead padding, a forehead support, a nasal pillow, a moisturizer, a connecting piece to a hose connection, a housing part of a breathing device, a sound damping box of a breathing device, an oxygen concentrator, a suction pump, a pulse oximeter or a sensor for a pulse oximeter, wherein the first and second materials are at least in part connected to each other permanently and one or more free spaces present in the first material are filled at least partially with the second material, and wherein at least one of
(i) the second material has a higher hardness than the first material,
(ii) more than one free space is present in the first material and filled at least partially with the second material,
(iii) the one or more free spaces comprise spaces formed by adjacent ribs of the first material,
(iv) the second material is embedded at least partially in the first material.

2. The device of claim 1 , wherein the medical/technical device is at least one of a spherical joint, a spherical joint receiving element, an exhaling system, a tape system, a tape clip, a forehead padding, a forehead support, a nasal pillow, a moisturizer, a connecting piece to a hose connection, a housing part of a breathing device, a sound damping box of a breathing device, an oxygen concentrator, a suction pump, a pulse oximeter or a sensor for a pulse oximeter.

3. The device of claim 1 , wherein the second material has a higher hardness than the first material.

4. The device of claim 2 , wherein the second material has a higher hardness than the first material.

5. The device of claim 1 , wherein more than one free space is present in the first material and filled at least partially with the second material.

6. The device of claim 2 , wherein more than one free space is present in the first material and filled at least partially with the second material.

7. The device of claim 2 , wherein the second material comprises ABS, PP, PC or PA.

8. The device of claim 2 , wherein the first material comprises a silicone or a thermoplastic elastomer.

9. The device of claim 1 , wherein the one or more free spaces comprise spaces formed by adjacent ribs of the first material.

10. The device of claim 2 , wherein the one or more free spaces comprise spaces formed by adjacent ribs of the first material.

11. The device of claim 2 , wherein the second material is embedded at least partially in the first material.

12. The device of claim 11 , wherein the second material has a higher hardness than the first material.

13. The device of claim 1 , wherein the first and second materials are at least in part permanently connected to each other chemically.

14. The device of claim 1 , wherein the first and second materials are at least in part permanently connected to each other by gluing, welding, or riveting.

15. The device of claim 1 , wherein the first and second materials are at least in part permanently connected to each other by injection molding.

16. The device of claim 2 , wherein one of the first and second materials is a softer material, which softer material is at least partially a sealing element.

17. The device of claim 1 , wherein the first and second materials are connected to each other by a third material.

18. The device of claim 2 , wherein the first and second materials are connected to each other by a third material.

19. The device of claim 2 , wherein the first and second materials comprise silicones of different hardness.

20. The device of claim 2 , wherein the first material serves to arrange two adjacent surfaces in such a way that these surfaces assume a function of a locking element and/or snap-in element and/or support member.

21. The device of claim 2 , wherein the second material can be unloaded in a first state and compressed and/or expanded and/or torsioned in another state, a restoring force being directed to the first material.

22. A process for manufacturing the medical/technical device of claim 1 , wherein the process comprises at least in part connecting the first and second materials to each other permanently by injection molding such that one or more free spaces present in the first material are filled at least partially with the second material.

23. The process of claim 22 wherein the injection molding comprises multi-component injection molding.

24. A process for manufacturing a medical/technical device, wherein the device is comprised of at least a first material and a second material which is different from the first material, the first and second materials comprising silicones of different hardness and being at least in part connected to each other permanently, and a concave surface formed by the first material and having a first radius of curvature being at least partially covered by the second material to form a concave surface having a second radius of curvature which is larger than the first radius of curvature, and wherein the method comprises at least in part connecting the first and second materials to each other permanently by injection molding such that a concave surface formed by the first material and having a first radius of curvature is at least partially covered by the second material to form a concave surface having a second radius of curvature which is larger than the first radius of curvature.

25. The process of claim 24 wherein the injection molding comprises multi-component injection molding.

26. A medical/technical device comprised of at least a first material and a second material which is different from the first material, wherein the medical/technical device is at least one of a spherical joint, a spherical joint receiving element, an exhaling system, a tape system, a tape clip, a forehead padding, a forehead support, a nasal pillow, a moisturizer, a connecting piece to a hose connection, a housing part of a breathing device, a sound damping box of a breathing device, an oxygen concentrator, a suction pump, a pulse oximeter or a sensor for a pulse oximeter and wherein the first and second materials are at least in part connected to each other permanently and a concave surface formed by the first material and having a first radius of curvature is at least partially covered by the second material to form a concave surface having a second radius of curvature which is larger than the first radius of curvature.

27. The device of claim 26 , wherein the first and second materials differ in a hardness thereof.

28. The device of claim 26 , wherein the first and second materials are at least in part permanently connected to each other chemically.

29. The device of claim 26 , wherein the first and second materials are at least in part permanently connected to each other by adhesive surfaces.

30. The device of claim 26 , wherein the first and second materials are at least in part permanently connected to each other by gluing, welding, or riveting.

31. The device of claim 26 , wherein the first and second materials are at least in part permanently con

Assignees

• Eifler Martin
• Loewenstein Medical Tech Sa

Inventors

• Eifler Martin

Classifications

• A61M16/0825 Primary

  with ball-sockets · CPC title

• A61M16/06 Primary

  Respiratory or anaesthetic masks · CPC title

• Y10T428/24942

  including components having same physical characteristic in differing degree · CPC title

• Y10T428/1386

  Natural or synthetic rubber or rubber-like compound containing · CPC title

• Y10T428/1379

  Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit · CPC title