Medical implant with contact portions that converts movement from the contact portions into an electrical signal

Patent metadata

Field	Value
Publication number	US-9827429-B2
Application number	US-201514802964-A
Country	US
Kind code	B2
Filing date	Jul 17, 2015
Priority date	Aug 19, 2014
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

A medical implant including an implant body for insertion into a human and/or animal body. The implant body includes at least one first and at least one second contact portion, wherein the at least one first and the at least one second contact portions contact two tissue regions performing a relative movement with respect to one another. The at least one first and the at least one second contact portions are movable relative to one another, wherein a relative movement of the contact portions may be converted into an electrical signal.

First claim

What is claimed is:

1. A medical implant for insertion into the human and/or animal body, comprising:
an implant body, wherein the implant body comprises at least one first and at least one second contact portion;
wherein the at least one first and the at least one second contact portions are configured to contact two tissue regions performing a relative movement with respect to one another,
wherein the at least one first and the at least one second contact portions are movable relative to one another, and a relative movement of the at least one first and the at least one second contact portions is converted into electrical energy,
wherein one or more of the at least one first contact portion and the at least one second contact portion is coupled directly or indirectly to an electric generator in or on the implant body,
wherein the electric generator comprises a magnet and a coil,
wherein the at least one second contact portion is coupled directly to the electric generator and moves the magnet of the electric generator relative to the coil when the two tissue regions move relative to one another,
wherein the magnet moves laterally relative to the coil when the two tissue regions move laterally relative to one another as a lateral relative movement,
wherein the magnet is electromagnetically connected to the coil and induces an electric voltage in the coil to operate the medical implant,
wherein the implant body further comprises an electric store, and,
wherein the electrical energy is stored in the electric store and called up as necessary.

2. The medical implant as claimed in claim 1 , wherein the at least one first contact portion comprises a fixing element to fasten the implant body to one of the two tissue regions.

3. The medical implant as claimed in claim 1 , wherein one or more of the at least one first contact portion and the at least one second contact portion is mechanically connected to a movable element of the electric generator provided in or on the implant body.

4. The medical implant as claimed in claim 1 , wherein the implant body comprises a number of parts, wherein at least two parts of the number of parts are movable relative to one another and each of the number of parts of the implant body is associated with a contact portion.

5. The medical implant as claimed in claim 4 , wherein the number of parts are coupled using at least one piezoelectric element.

6. The medical implant as claimed in claim 4 , further comprising a mechanical oscillation generator arranged between the number of parts of the implant body.

7. The medical implant as claimed in claim 1 , wherein the electric generator is an electrostatic generator, and wherein the electric generator is driven via mechanical waves.

8. The medical implant as claimed in claim 4 , wherein the at least one second contact portion comprises a fixing element to fasten the implant body to one of the two tissue regions.

9. The medical implant as claimed in claim 1 , further comprising a control and/or regulation unit, wherein the control and/or regulation unit is in the implant body or is coupled thereto to induce a therapeutic energy delivery.

10. The medical implant as claimed in claim 1 , wherein the implant comprises an epicardial pacemaker.

11. The medical implant as claimed in claim 6 , wherein when an expected relative movement is performed, the mechanical oscillation generator generates a matching excitation frequency in a second part of the at least two parts with the electric generator.

12. The medical implant as claimed in claim 1 , wherein the at least one second contact portion is moveably mounted and performs a titling movement about a hinge joint, wherein the lateral relative movement between the two tissue regions is predefined, such that the at least one first contact portion and the at least one second contact portion are connected to their respective tissue regions of the two tissue regions, and such that the at least one second contact portion entrains the magnet via a mechanical coupling when the at least one contact portion performs the tilting movement.

Assignees

• Biotronik Se & Co Kg

Inventors

• Doerr Thomas
• Diebold Michael

Classifications

• A61N1/059

  Anchoring means · CPC title

• A61B2560/0214

  of power generation or supply · CPC title

• A61B5/6882

  Anchoring means · CPC title

• H02N2/18

  producing electrical output from mechanical input, e.g. generators (for measurement devices G01) · CPC title

• A61N1/37512

  Pacemakers · CPC title