IP Library › Granted Patent US 12,233,250
Granted Patent B2
US 12,233,250 · App. 17/051,414 · Granted Feb 25, 2025

Device for inductive energy transmission into a human body and use thereof

Inventors: Ingo Stotz (Ditzingen, DE); Samuel Vasconcelos Araujo (Esslingen, DE); Michael Jiptner (Besigheim, DE)
Assignee: Kardion GmbH
A61M60/148A61M60/178A61M60/205A61M60/873
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Quick Facts
Patent No.
US 12,233,250
App. No.
17/051,414
Granted
Feb 25, 2025
Kind
B2
Abstract

The invention relates to a device ( 10; 10 a ) for inductive energy transfer into a human body ( 1 ), having a transmitter unit ( 11 ) with a housing ( 12 ), in which at least one transmitter coil ( 14 ) is arranged, wherein the housing ( 12 ) comprises a contact surface ( 23 ), which is configured in order to be brought into surface contact with the body ( 1 ), and a receiver unit ( 20 ) that can be positioned in the body ( 1 ) with a receiver coil ( 21 ), wherein a heat-insulating element ( 26 ) and a heat-conducting element ( 30; 30 a ) are arranged between the transmitter coil ( 14 ) and the body.

Claims (34)

1. An apparatus for inductive energy transmission, the apparatus comprising:

a transmitter unit comprising:

a housing comprising a contact surface configured to contact a body of a patient;

at least one transmitter coil positioned within the housing;

an insulating element configured to be arranged between the at least one transmitter coil and the contact surface, wherein the insulating element is configured to have a poorer thermal conductivity than a base of the housing; and

a conductive element configured to be arranged on an outer side of the housing at least partially between the contact surface and the body of the patient on a side of the insulating element opposite from the at least one transmitter coil, the conductive element comprising a material having a thermal conductivity of 1 W/mK or greater; and

a receiver unit configured to be positioned in the body of the patient and comprising a receiver coil.

2. The apparatus of claim 1 , wherein the insulating element comprises a heat-insulating film.

3. The apparatus of claim 2 , wherein the insulating element comprises a film of aerogel.

4. The apparatus of claim 1 , wherein the insulating element is configured to be separate from the housing and is arranged on an inner surface of the housing.

5. The apparatus of claim 1 , wherein the insulating element comprises a multi-layered textile comprising fine woven structures.

6. The apparatus of claim 1 , wherein the conductive element is configured to be arranged outside of the contact surface on the housing separate from the body of the patient.

7. The apparatus of claim 6 , wherein the conductive element extends along sidewalls of the housing in a direction away from the body of the patient.

8. The apparatus of claim 1 , wherein the housing is configured to be injection-molded and made out of plastic, and wherein the conductive element is configured to be inserted into a molding tool, such that the plastic is molded onto the conductive element as the base of the housing.

9. The apparatus of claim 1 , wherein the conductive element is configured to be positioned on the body of the patient, separate from the housing.

10. The apparatus of claim 1 , wherein the conductive element is configured to be flexible and configured to cling to an outer contour of the body of the patient.

11. The apparatus of claim 1 , wherein the conductive element comprises ceramic-filled polyurethane.

12. The apparatus of claim 1 , wherein the conductive element comprises a non-metallic material and a non-electrically conductive material, and wherein the conductive element has a permeability of less than 100.

13. The apparatus of claim 1 , wherein the insulating element extends upwards along sidewall regions of the housing and completely overlaps the at least one transmitter coil.

14. A cardiac assist system comprising:

a cardiac assist device comprising a pump configured to assist blood flow through a heart of a patient; and

an inductive energy transmission apparatus comprising:

a receiver unit configured to be positioned in a body of the patient and comprising a receiver coil;

a transmitter unit comprising:

a housing comprising at least one transmitter coil;

a contact surface configured to contact the body of the patient;

an insulating element configured to have a poorer thermal conductivity than a base of the housing; and

a conductive element configured to be positioned at least partially between the body of the patient and the contact surface of the transmitter unit on a side of the insulating element opposite from the at least one transmitter coil, the conductive element comprising a material having a thermal conductivity of 1 W/mK or greater.

15. The cardiac assist system of claim 14 , wherein the insulating element is configured to be separate from the housing and is arranged on an inner surface of the housing.

16. The cardiac assist system of claim 14 , wherein the insulating element extends upwards along sidewall regions of the housing and completely overlaps the at least one transmitter coil.

17. The cardiac assist system of claim 14 , wherein the insulating element is a multi-layered textile comprising fine woven structures.

18. The cardiac assist system of claim 17 , wherein the conductive element extends along sidewalls of the housing in a direction away from the body of the patient.

19. The cardiac assist system of claim 14 , wherein the conductive element is configured to be arranged outside of the contact surface on the housing separate from the body of the patient.

20. The cardiac assist system of claim 14 , wherein the conductive element is configured to be positioned on the body of the patient, separate from the housing.

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE APPLICATION NO. 17055502 TO READ 17055023 PREVIOUSLY RECORDED AT REEL: 062896 FRAME: 0150. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Mar 17, 2023
From: ROBERT BOSCH GMBH
To: KARDION GMBH
Reel/Frame 063116/0438 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 6, 2023
From: ROBERT BOSCH GMBH
To: KARDION GMBH
Reel/Frame 062896/0150 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 25, 2022
From: STOTZ, INGO; ARAUJO, SAMUEL VASCONCELOS; JIPTNER, MICHAEL
To: ROBERT BOSCH GMBH
Reel/Frame 058765/0102 →
SECURITY INTEREST Recorded Apr 26, 2021
From: KARDION GMBH
To: EDWARDS LIFESCIENCES HOLDING, INC.
Reel/Frame 056046/0422 →
Priority Claims (1)
DE 102018206750.3 · May 2, 2018 · national
Continuity (1)
Related Publication 20210386990A1 · Dec 16, 2021
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