Line device for conducting a blood flow for a heart support system, heart support system, and method for producing a line device

Patent metadata

Field	Value
Publication number	US-12201823-B2
Application number	US-201917057411-A
Country	US
Kind code	B2
Filing date	May 30, 2019
Priority date	May 30, 2018
Publication date	Jan 21, 2025
Grant date	Jan 21, 2025

Abstract

The invention relates to a line device ( 105 ) for conducting a blood flow for a heart support system. The heart support system has a head unit and an outlet unit. The line device ( 105 ) has a main part ( 205 ). The main part ( 205 ) has, at a first end, a first attachment section ( 210 ) for attaching the line device ( 105 ) to the head unit and, at a second end, a second attachment section ( 215 ) for attaching the line device ( 105 ) to the outlet unit. Furthermore, the main part ( 205 ) has a mesh section ( 220 ) between the attachment sections ( 210, 215 ), wherein the mesh section ( 220 ) has a mesh structure ( 230 ) formed from at least one mesh wire ( 225 ). In addition, the main part ( 205 ) has an inlet section ( 235 ), arranged in the first attachment section ( 210 ), for introducing the blood flow into the main part ( 205 ).

First claim

The invention claimed is:

1. A heart support system comprising:
a head unit;
an outlet unit; and
a line device arranged between the head unit and the outlet unit and configured to conduct a blood flow for the heart support system, wherein the line device comprises:
a main part comprising:
a first section at a first end, the first end configured to attach to the head unit;
a second section at a second end, the second end configured to attach to the outlet unit;
a mesh section between the first section and the second section, wherein the mesh section comprises a mesh structure formed from at least one mesh wire, wherein the mesh section is configured to receive and/or guide a cable element of the heart support system, and wherein the mesh section is bent at an obtuse angle at a bending point; and
an inlet arranged in the first section and configured to introduce the blood flow into the main part;

wherein the head unit comprises a sensor connected to the cable element.

2. The heart support system according to claim 1 , wherein at least one of the first section and the second section comprises at least one eyelet configured to thread an end of the at least one mesh wire so as to connect the mesh section to the at least one of the first section and the second section.

3. The heart support system according to claim 1 , wherein the mesh structure is formed as a diamond lattice.

4. The heart support system according to claim 1 , wherein the mesh structure is formed from the at least one mesh wire and the cable element.

5. The heart support system according to claim 1 , wherein at least the mesh section is formed of a shape memory material.

6. The heart support system according to claim 1 , wherein the mesh section extends over at least half of the main part to adjust the stiffness of the main part.

7. The heart support system according to claim 1 , wherein the line device further comprises a sealing layer arranged on or in the mesh section, wherein the sealing layer is configured to seal the mesh section in a fluid-tight manner.

8. The heart support system according to claim 1 , wherein an inner diameter of the main part changes between the first section and the second section.

9. The heart support system according to claim 1 , wherein the inlet comprises at least one inlet opening cut in the first section.

10. A heart support system comprising:
a head unit;
an outlet unit; and
a line device arranged between the head unit and the outlet unit and configured to conduct a blood flow for the heart support system, wherein the line device comprises:
a main part comprising:
a first section at a first end, the first end configured to attach to the head unit;
a second section at a second end, the second end configured to attach to the outlet unit;
a mesh section between the first section and the second section, wherein the mesh section comprises a mesh structure formed from at least one mesh wire, and wherein the mesh section is bent at an obtuse angle at a bending point; and
an inlet arranged in the first section and configured to introduce the blood flow into the main part;

wherein the first section and/or the second section comprises at least one merlon, wherein the at least one merlon is arranged on a side of the first section and/or the second section facing the mesh section.

11. The heart support system according to claim 10 , wherein at least one of the first section and the second section comprises at least one eyelet configured to thread an end of the at least one mesh wire so as to connect the mesh section to the at least one of the first section and the second section, wherein the at least one eyelet is formed in the at least one merlon.

12. A heart support system comprising:
a head unit;
an outlet unit; and
a line device arranged between the head unit and the outlet unit and configured to conduct a blood flow for the heart support system, wherein the line device comprises:
a main part comprising:
a first section at a first end, the first end configured to attach to the head unit;
a second section at a second end, the second end configured to attach to the outlet unit;
a mesh section between the first section and the second section, wherein the mesh section comprises a mesh structure formed from at least one mesh wire, wherein the mesh section is configured to receive and/or guide a cable element of the heart support system, and wherein the mesh section extends over at least half of the main part to adjust the stiffness of the main part; and
an inlet arranged in the first section and configured to introduce the blood flow into the main part,
wherein the head unit comprises a sensor connected to the cable element.

13. The heart support system according to claim 12 , wherein at least one of the first section and the second section comprises at least one eyelet configured to thread an end of the at least one mesh wire to connect the mesh section to the at least one of the first section and the second section.

14. The heart support system according to claim 12 , wherein the mesh structure is formed as a diamond lattice.

15. The heart support system according to claim 12 , wherein the mesh structure is formed from the at least one mesh wire and the cable element.

16. The heart support system according to claim 12 , wherein at least the mesh section is formed of a shape memory material.

17. The heart support system according to claim 12 , wherein the line device further comprises a sealing layer arranged on or in the mesh section, wherein the sealing layer is configured to seal the mesh section in a fluid-tight manner.

18. The heart support system according to claim 12 , wherein an inner diameter of the main part changes between the first section and the second section.

19. The heart support system according to claim 12 , wherein the inlet comprises at least one inlet opening cut in the first section.

20. A heart support system comprising:
a head unit;
an outlet unit; and
a line device arranged between the head unit and the outlet unit and configured to conduct a blood flow for the heart support system, wherein the line device comprises:
a main part comprising:
a first section at a first end, the first end configured to attach to the head unit;
a second section at a second end, the second end configured to attach to the outlet unit;
a mesh section between the first section and the second section, wherein the mesh section comprises a mesh structure formed from at least one mesh wire, and wherein the mesh section extends over at least half of the main part to adjust the stiffness of the main part; and
an inlet arranged in the first section and configured to introduce the blood flow into the main part,

wherein the first section and/or the second section comprises at least one merlon, wherein the at least one merlon is arranged on a side of the first section and/or the second section facing the mesh section.

21. The heart support system according to claim 20 , wherein at least one of the first section and the second section comprises at least one eyelet configured to thread an end of the at least one mesh wire to connect the mesh section to the at least one of the first section and the second section, wherein the at least one eyelet is formed in the at least one merlon.

22. A method for producing a line device for conducting a blood flow for a heart support system, wherein the method comprises:
forming a main part of the line device from

Assignees

• Kardion Gmbh

Inventors

• Baumbach Hardy
• Schellenberg Inga
• Minzenmay David

Classifications

• A61M60/216 Primary

  including a rotating member acting on the blood, e.g. impeller · CPC title

• B21C37/047

  of fine wires · CPC title

• A61M2207/00

  Methods of manufacture, assembly or production · CPC title

• A61M2205/0266

  Shape memory materials · CPC title

• A61M60/178

  drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices · CPC title