Hybrid Electromagnetic-Acoustic Distal Targeting System

• US 20080170473A1
• Filed: 03/30/2006
• Published: 07/17/2008
• Est. Priority Date: 03/31/2005
• Status: Active Grant

• Current Assignee: Stryker European Operations Holdings, LLC (Stryker Corporation)
• Original Assignee: Stryker Trauma GmbH (Stryker Corporation)
• Inventors: Kaiser, Edgar J., Speitling, Andreas Werner
• Granted Patent: US 8,491,660 B2
• Time in Patent Office: Days
• US Class Current: 367/140
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/07 Endoradiosondes
• CPC Class Codes: A61B 5/4504 Bones A61B5/4547 takes precedence
• CPC Class Codes: A61N 1/37217 characterised by the communication link, e.g. acoustic or tactile

Abstract

A data transmission system connected to a bone implant has an extra-corporeally arranged external transmitting unit an implantable internal first receiving unit adapted to be actuated by the external transmitting unit. An internal transmitting unit is adapted to be coupled and implanted to the implant. A second transmission section is located between the external transmitting unit and the internal first receiving unit, via which the internal transmitting unit is actuated. A second receiving unit and a first transmission section is located between the internal transmitting unit and the second receiving unit. The first transmission section operates with acoustic vibrations or waves.

Claims

1. A data transmission system connected to an implant, the data transmission system comprising:

an extracorporeally arranged external transmitting unit;

an implantable internal first receiving unit adapted to be actuated by the external transmitting unit;

an internal transmitting unit adapted to be coupled and implanted to the implant;

a first transmission section between the external transmitting unit and the internal first receiving unit, via which the internal transmitting unit is actuated;

a second transmission section between the internal transmitting unit and a second receiving unit; and

wherein the second transmission section operates with acoustic vibrations or waves.

2. The data transmission system according to claim 1, wherein the first transmission section operates with electromagnetic waves.

3. The data transmission system according to claim 2, wherein the first transmission section is adapted for transmitting both data and energy for operating the internal receiving unit and/or the internal transmitting unit.

4. The data transmission system according to claim 1, wherein the external transmitting unit comprises at least one transmitting coil for transmitting data and energy via the first transmission section.

5. The data transmission system according to claim 1, wherein the first receiving unit comprises a receiving coil.

6. The data transmission system according to claim 1, wherein the internal transmitting unit includes a first acoustic transducer element.

7. The data transmission system according to claim 1, wherein the second receiving unit comprises an acoustic transducer element and a transmitting element,

wherein the second receiving unit acoustic transducer element is adapted for transforming acoustic waves into electrical signals;

wherein the receiving unit transmitting element is adapted for transmitting the electric signal to the external transmitting unit via a third transmitting section.

8. The data transmission system according to claim 7, wherein the third transmission section is adapted for transmitting data by acoustic vibrations or waves, electric signals or electromagnetic waves, wherein the third transmitting section consists of a cable connection or a wireless connection.

9. The data transmission system according to claim 1, further comprising a processor unit,

whereby the processor unit is adapted for being fixed to the second receiving unit and/or to the external transmitting unit;

and

whereby the processor unit is adapted for evaluating the data received by the second receiving unit.

10. The data transmission system according to claim 1 wherein the internal transmitting unit is acoustically coupled to the implant.

11. The data transmission system according to claim 1, wherein the external transmitting unit and/or the second receiving unit are designed to be coupled acoustically to the skin and/or an external part of a transcutaneous implant.

12. The data transmission system according to claim 1, wherein the implant is an internal implant with transcutaneous transit, wherein the second transmission section is formed by means of a metal pin.

13. The data transmission system according to claim 1, wherein the internal transmitting unit and the first receiving unit are installed on an intramedullary nail, and the second receiving unit can be detachably installed on the associated end of the nail or on an insertion instrument connected to the nail.

14. The data transmission system according to claim 1, further comprising a measuring unit adapted to be implanted with the implant for measuring at least one physical or chemical value on the implant or in the region thereof.

15. The data transmission system according to claim 14, wherein the internal transmitting unit and/or the first internal receiving unit are integrated with the measuring unit or a transponder.

16. The data transmission system according to claim 1, further comprising a first transponder unit;

wherein the first transponder unit comprises the first internal receiving unit and the internal transmitting unit; and

wherein the transponder unit is encapsulated in a body-compatible material.

17. The data transmission system according to claim 16, wherein the implanatable first transponder unit forms an independent unit or is integrated in the implant.

18. The data transmission system according to claim 16, wherein the implantable first transponder unit is integrated in an implantable telemetry unit or is coupled to such a unit.

19. The data transmission system according to claim 16, wherein a data transmission takes place from the external transmitting unit to the implantable first transponder unit by means of electromagnetic vibrations and/or waves.

20. The data transmission system according to claim 1, wherein the internal transmitting unit is coupled acoustically to the bone, the implant or a soft part tissue.

21. The data transmission system according to claim 18, wherein one of the measuring unit and the implanted first transponder unit contains a memory with permanently stored data.

22. The data transmission system according to claim 16, further comprising a second transponder unit;

wherein the first transponder unit (18) and the second transponder unit are located on the implant;

wherein the second transponder unit comprises an internal third receiving unit and a second internal transmitting unit;

wherein the external transmitting unit comprises at least two transmitting coils for transmitting data and energy via the first transmission section to the third internal receiving unit of the second transponder unit;

wherein the receiving coils of the first transponder unit and the second transponder unit are adapted for activating the internal transmitting units according to the transmitted data originating from the external transmitting unit;

wherein the internal transmitting units of the first transponder unit and the second transponder unit transmit the data to the second receiving unit via the second transmission section; and

wherein the second receiving unit or the transmitting unit are adapted for analyzing the position of the transmitting unit relative to the first transponder unit and the second transponder unit.