Implant with fixing device and insertion apparatus for implant

Patent metadata

Field	Value
Publication number	US-9770586-B2
Application number	US-201514802951-A
Country	US
Kind code	B2
Filing date	Jul 17, 2015
Priority date	Aug 19, 2014
Publication date	Sep 26, 2017
Grant date	Sep 26, 2017

Abstract

Embodiments include a medical implant including a fixing device with at least one fixing element to fix the implant at a site of implantation. The implant includes a belt drive that rotates an actuation device, wherein the actuation device is coupled to the fixing device and converts the rotary movement into a longitudinal movement of the fixing device. Embodiments include an insertion device to insert the medical implant.

First claim

What is claimed is:

1. A medical implant comprising:
a fixing device comprising at least one fixing element configured to fix the medical implant at a site of implantation, and,
a belt drive that rotates an actuation device,
wherein the actuation device is coupled to the fixing device,
wherein the actuation device converts rotary movement from the belt drive into a longitudinal movement of the fixing device,
wherein the belt drive comprises a belt detachably arranged on the actuation device, such that the belt is decoupled or detached in terms of drive from the actuation device when a predefined number of revolutions of the actuation device is reached,
wherein the at least one fixing element comprises a plurality of fixing elements, and
wherein the plurality of fixing elements are one or more of displaceable and tiltable with respect to one another at least in an extended state.

2. The medical implant as claimed in claim 1 , wherein said belt loops around the actuation device, and wherein the actuation device comprises a rotationally symmetric contact face corresponding to the belt of the belt drive.

3. The medical implant as claimed in claim 1 , wherein the belt drive is configured to move the actuation device in both directions of rotation.

4. The medical implant as claimed in claim 1 , wherein the plurality of fixing elements are movable simultaneously when the actuation device rotates.

5. The medical implant as claimed in claim 1 , further comprising a locking mechanism, wherein the fixing device is coupled to the locking mechanism, and wherein the locking mechanism at least prevents a longitudinal movement when the belt drive is detached.

6. The medical implant as claimed in claim 2 , wherein the belt of the belt drive is coupled in a form-fitting manner to the actuation device.

7. The medical implant as claimed in claim 2 , wherein the belt and the actuation device comprise structures that engage with one another, and wherein the structures cooperate with one another when the actuation device rotates.

8. The medical implant as claimed in claim 7 , wherein the structures comprise mechanical contour elements comprising small balls or nubs that couple with the actuation device in a defined region and that engage in indentations of the contact face between the actuation device and the belt.

9. The medical implant as claimed in claim 2 , wherein the belt is formed from resorbable material.

10. The medical implant as claimed in claim 1 , wherein the at least one fixing element comprises one or more fixing helices.

11. The medical implant as claimed in claim 1 , wherein the medical implant is an epicardial or endocardial pulse generator or a neurostimulator.

12. The medical implant as claimed in claim 1 , wherein the plurality of fixing elements comprise helices, wherein said belt drive further comprises a second belt, wherein said belt is configured to anchor said helices in tissue at said site of implantation, and wherein said second belt is configured to unscrew said helices from said tissue.

13. An insertion device for a medical implant comprising:
a medical implant, wherein the medical implant comprises
a fixing device comprising at least one fixing element configured to fix the medical implant at a site of implantation; and,
a belt drive that rotates an actuation device,
wherein the belt drive is actuated via the insertion device,
wherein the actuation device is coupled to the fixing device,
wherein the actuation device converts rotary movement from the belt drive into a longitudinal movement of the fixing device, and
wherein the belt drive comprises a belt detachably arranged on the actuation device, such that the belt is decoupled or detached in terms of drive from the actuation device when a predefined number of revolutions of the actuation device is reached; and,

a receptacle;
wherein the at least one fixing element comprises a plurality of fixing elements, and
wherein the plurality of fixing elements are one or more of displaceable and tiltable with respect to one another at least in an extended state.

14. A medical implant comprising:
a fixing device comprising at least one fixing element configured to fix the medical implant at a site of implantation, and,
a belt drive that rotates an actuation device,
wherein the actuation device is coupled to the fixing device,
wherein the actuation device converts rotary movement from the belt drive into a longitudinal movement of the fixing device,
wherein the belt drive comprises a belt detachably arranged on the actuation device, such that the belt is decoupled or detached in terms of drive from the actuation device when a predefined number of revolutions of the actuation device is reached,
wherein the at least one fixing element comprises a plurality of fixing elements, and
wherein the plurality of fixing elements comprise helices, wherein said belt drive further comprises a second belt, wherein said belt is configured to anchor said helices in tissue at said site of implantation, and wherein said second belt is configured to unscrew said helices from said tissue.

15. An insertion device for a medical implant comprising:
a medical implant, wherein the medical implant comprises
a fixing device comprising at least one fixing element configured to fix the medical implant at a site of implantation; and,
a belt drive that rotates an actuation device,
wherein the belt drive is actuated via the insertion device,
wherein the actuation device is coupled to the fixing device,
wherein the actuation device converts rotary movement from the belt drive into a longitudinal movement of the fixing device, and
wherein the belt drive comprises a belt detachably arranged on the actuation device, such that the belt is decoupled or detached in terms of drive from the actuation device when a predefined number of revolutions of the actuation device is reached; and,

a receptacle;
wherein the at least one fixing element comprises a plurality of fixing elements, and
wherein the plurality of fixing elements comprise helices, wherein said belt drive further comprises a second belt, wherein said belt is configured to anchor said helices in tissue at said site of implantation, and wherein said second belt is configured to unscrew said helices from said tissue.

Assignees

• Biotronik Se & Co Kg

Inventors

• Doerr Thomas
• Diebold Michael

Classifications

• A61N1/059 Primary

  Anchoring means · CPC title

• A61N1/3756

  Casings with electrodes thereon, e.g. leadless stimulators · CPC title

• A61N1/057

  Anchoring means; Means for fixing the head inside the heart · CPC title

• A61N1/372

  Arrangements in connection with the implantation of stimulators · CPC title

• A61N1/0587

  Epicardial electrode systems; Endocardial electrodes piercing the pericardium · CPC title