Implantable device and implantable system comprising the same

Patent metadata

Field	Value
Publication number	US-10117621-B2
Application number	US-201615141996-A
Country	US
Kind code	B2
Filing date	Apr 29, 2016
Priority date	Apr 30, 2015
Publication date	Nov 6, 2018
Grant date	Nov 6, 2018

Abstract

An implantable device includes a body part and a piezoelectric part. The body part is configured to grasp a pulsatile organic or inorganic tissue. The piezoelectric part is mechanically coupled to the body part and is configured to convert a varying shear force transferred from the body part to the piezoelectric part into voltage. An implantable system, comprises the implantable device and a stent like object configured to be inserted and deployed within a pulsatile or static tissue. The implantable device is configured to form a sealed junction with the pulsatile tissue while pressing against an outer circumference area of the stent.

First claim

What is claimed is:

1. An implantable device, comprising:
a body part configured to grasp a pulsatile tissue when the device is implanted in said pulsatile tissue; and
a piezoelectric part being mechanically coupled to the body part and configured to convert a varying shear force transferred from the body part to the piezoelectric part into voltage, wherein the body part comprises:
a first grasping part being configured to grasp a first tissue part of the pulsatile tissue with a first surface area; and
a second grasping part being configured to grasp a second tissue part of the pulsatile tissue with a second surface area, the first surface area and the second surface area facing each other,

wherein the piezoelectric part is mechanically interconnected between the first grasping part and the second grasping part,
wherein the first grasping part and the second grasping part comprise:
a stiff part in a region directly adjoining the piezoelectric part; and
an elastic part in a region directly adjoining the stiff part.

2. The implantable device of claim 1 , wherein the body part and the piezoelectric part form a cuff configured to grasp the pulsatile tissue when the device is implanted in the tissue.

3. The implantable device of claim 1 , wherein the body part and the piezoelectric part form a tube structure configured to enclose the pulsatile tissue.

4. The implantable device of claim 3 , further comprising an additional piezoelectric part mechanically interconnected between the first grasping part and the second grasping part.

5. The implantable device of claim 1 , wherein the body part comprises a piezoelectric material.

6. The implantable device of claim 1 , wherein the first grasping part and the second grasping part are mechanically connected with each other by the interconnected piezoelectric part only.

7. The implantable device of claim 1 , wherein the first grasping part and the second grasping part are mechanically connected with each other by the interconnected piezoelectric part and at least one end part comprising an elastic end part.

8. The implantable device of claim 1 , wherein a region of the first grasping part and the second grasping part directly adjoining the piezoelectric part comprises a stiff material.

9. The implantable device of claim 1 , wherein the stiff part and the elastic part comprise a synthetic material of the same material composition, the synthetic material being chemically hardened within the stiff part.

10. The implantable device of claim 1 , wherein the stiff part and the elastic part comprise a synthetic material of the same material composition, the synthetic material being coated within the stiff part.

11. The implantable device of claim 1 , further comprising an energy harvesting unit configured to convert the varying voltage of the piezoelectric part into electric energy.

12. The implantable device of claim 1 , further comprising an antenna structure or an inductive structure coated on the surface of the body part by metal coating.

13. The implantable device of claim 1 , further comprising an electrical circuitry comprising at least one of a transmitter, a receiver, a processor, a memory, or a power supply.

14. The implantable device of claim 1 , further comprising a sensor unit comprising at least one of a pressure sensor, a flow sensor, a temperature sensor, an acceleration sensor, a gyro sensor, or a magnetic sensor.

15. The implantable device of claim 1 , further comprising components on, in, or embedded into the body part comprising microchannels for transport of fluidics for biochemical analytics purposes.

16. An implantable system, comprising:
an implantable device, comprising:
a body part configured to grasp a pulsatile tissue when the device is implanted in said pulsatile tissue; and
a piezoelectric part being mechanically coupled to the body part and configured to convert a varying shear force transferred from the body part to the piezoelectric part into voltage, wherein the body part comprises:
a first grasping part being configured to grasp a first tissue part of the pulsatile tissue with a first surface area; and
a second grasping part being configured to grasp a second tissue part of the pulsatile tissue with a second surface area, the first surface area and the second surface area facing each other,

wherein the piezoelectric part is mechanically interconnected between the first grasping part and the second grasping part,
wherein the first grasping part and the second grasping part comprise:
a stiff part in a region directly adjoining the piezoelectric part; and

an elastic part in a region directly adjoining the stiff part; and

a stent adapted to be inserted and deployed within the pulsatile tissue, the implantable device configured to form a sealed junction area with the pulsatile tissue while pressing against an outer circumferential area in an circumferential surface of the stent.

17. The implantable system of claim 16 , wherein the stent comprises an opening portion in the circumferential surface to provide access to an inner part of the pulsatile tissue.

18. The implantable system of claim 17 , wherein the implantable device comprises a sensor area located opposite to the opening portion of the stent, the sensor area being adapted to measure a tissue fluid or gas parameter of the inner part of the pulsatile tissue.

Assignees

• Infineon Technologies Ag

Inventors

• Berger Jan
• Wedl Bernhard
• Hammerschmidt Dirk
• Pachler Walther
• Theuss Horst
• Witschnig Harald

Classifications

• A61B5/6862 Primary

  Stents · CPC title

• A61B5/0215

  by means inserted into the body · CPC title

• A61B2560/0214

  of power generation or supply · CPC title

• A61B5/02444

  Details of sensor (A61B5/02427 takes precedence) · CPC title