Operable implant

Patent metadata

Field	Value
Publication number	US-11110220-B2
Application number	US-201816214178-A
Country	US
Kind code	B2
Filing date	Dec 10, 2018
Priority date	Mar 15, 2013
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

An operable implant adapted to be implanted in the body of a patient. The operable implant comprising an operation device and a body engaging portion, the operation device comprises an electrical motor comprising a static part comprising a plurality of coils and a movable part comprising a plurality of magnets, such that sequential energizing of said coils magnetically propels the magnets and thus propels the movable part. The operation device further comprises an enclosure adapted to hermetically enclose the coils of the static part, such that a seal is created between the static part and the propelled moving part with the included magnets, such that the coils of the static part are sealed from the bodily fluids, when implanted.

First claim

The invention claimed is:

1. An operable implant adapted to be implanted in the body of a patient, the operable implant comprising an operation device and a body engaging portion, the operation device comprises an electrical motor comprising a static part comprising a plurality of coils and a movable part comprising a plurality of magnets, such that sequential energizing of said coils magnetically propels the magnets and this propels the movable part, wherein the operable implant further comprises a gear system adapted to receive mechanical work having a first force and velocity as input, from the movable part of the electrical motor, and output mechanical work having a if force and velocity, wherein the gear system comprises:
an operable element connected to the movable part and configured to be propelled by the movable part,
a first gear having the shape of a hollow cylinder, comprising a first number of teeth, on an outside thereof, and
a second gear having the shape of a hollow cylinder, comprising a greater number of teeth than the first gear, on an inside surface thereof, wherein the operable element is adapted to deflect the first gear, and to maintain the first gear deflected such that the teeth of the first gear are interengaged with the teeth of the second gear in at least two angularly spaced positions interspaced by positions at which the teeth are not interengaged, and wherein the operation of the operable element advances the at least two angularly spaced positions and thereby causes relative rotation between the first gear and the second gear.

2. The, operable implant according to claim 1 , wherein the operable element is adapted to deflect the first gear, and to maintain the first gear deflected such that the teeth of the first gear are interengaged with the teeth of the second gear in three positions or more positions interspaced by positions at which the teeth are not interengaged.

3. The operable implant according to claim 1 , wherein the gear system comprises a third gear, and wherein an inside of the third gear comprises the same amount of teeth as the outside of the first gear, and wherein teeth of the third gear are adapted to interengage with the teeth of the first gear such that the third gear rotates in relation to the second gear, along with the at least two angularly spaced positions.

4. The operable implant according to claim 1 , wherein the first gear directly or indirectly connects to a threaded member adapted to transform a radially rotating force to an axially reciprocating force.

5. The operable implant according to claim 1 , wherein the first gear directly or indirectly connects to a movable wall portion of a hydraulic reservoir.

6. The operable implant according to claim 5 , wherein a portion of a wall of the hydraulic reservoir comprises at least one of: a bellows structure, a shape adapted to allow movement although covered with fibrosis, and a plate shaped surface, in all cases enabling movement of the portion of the wall, enabling compression and/or expansion of the reservoir.

7. An operable implant adapted to be implanted in the body of a patient, the operable implant comprising an operation device and a body engaging portion, the operation device comprises an electrical motor comprising a static part comprising a plurality of coils and a movable part comprising a plurality of magnets, such that sequential energizing of said coils magnetically propels the magnets and thus propels the movable part, wherein the operable implant further comprises a first gear system adapted to receive mechanical work having a first force and velocity as input, from the movable part of the electrical motor, and output mechanical work having a different force and velocity, wherein the first gear system comprises:
an operable element connected to the movable part and configured to be propelled by the movable part,
a tint gear having the shape of a hollow cylinder, comprising a first number of teeth, on an outside thereof, and
a second gear having the shape of a hollow cylinder, comprising a greater number of teeth than the first gear, on an inside surface thereof, wherein the operable element is adapted to engage an inside of the first gear, such that the outside of the first gear is pressed against the inside surface of the second gear such that the teeth of the first gear are interengaged with the teeth of the second gear in at least one engaging position interspaced by at least one position at which the teeth are not interengaged, and wherein the operation of the operable element advances the at least one engaging position and thereby causes relative rotation between the first gear and the second gear,

wherein the operation device further comprises a second gear system comprising:
an operable element,
a first gear having the shape of a hollow cylinder, comprising a first number of teeth, on an outside thereof, and
a second gear having the shape of a hollow cylinder, comprising a greater number of teeth than the first gear, on an inside surface thereof, wherein the operable element is adapted to engage an inside of the first gear, such that the outside of the first gear is pressed against the inside surface of the second gear such that the teeth of the first gear are interengaged with the teeth of the second gear in at least one engaging position interspaced by at least one position at which the teeth are not interengaged, and wherein the operation of the operable element advances the at least one engaging position and thereby causes relative rotation between the first gear and the second gear, wherein

the first gear of the first gear system is directly or indirectly connected to the operable element of the second gear system, such that the first gear system is connected in series with the second gear system, such that the first gear system receives mechanical work having a first farce and first velocity and outputs mechanical work having a second, different, force and a second, different, velocity, and the second gear system receives the output mechanical work from the first gear system, as input, and outputs mechanical work with a third different force and third different velocity.

8. The operable implant according to claim 7 , wherein the first and second gear systems are positioned coaxially, along a rotational axis of the first and second gear systems.

9. The operable implant according to claim 7 , wherein the movable part comprises a rotatable structure, and wherein the second gear of at least one of: the first and second gear system has a smaller diameter than the rotatable structure and is at least partially placed in a same axial plane, such that the rotatable structure at least partially axially overlaps the second gear of at least one of: the first and second gear system, such that at least one of the first and second gear system is at least partially placed inside of the electrical motor.

10. The operable implant according to claim 7 , wherein the movable part comprises a rotatable structure, and wherein the first and second gears of the second gear system have a larger diameter than the rotatable structure, and are at least partially placed in a same axial plane, such that the first and second gears of the second gear system at least partially axially overlap the rotatable structure, such that the electrical motor is at least partially placed inside the second gear system.

11. The operable implant according to claim 7 , wherein the second gear of the first or second gear system is at least partially placed in a same axial plane as at least one of the movable parts and the static parts, such that at least one of the movable parts and the static parts at least pa

Assignees

• Forsell Peter

Inventors

• Forsell Peter

Classifications

• A61M60/876

  Implantable batteries · CPC title

• A61M60/875

  specially adapted for optimising alignment of external and implantable coils · CPC title

• A61M60/837

  Aspects of flexible displacement members, e.g. shapes or materials · CPC title

• A61M60/495

  Electromagnetic force · CPC title

• A61M60/289 Primary

  Devices for mechanical circulatory actuation assisting the residual heart function by means mechanically acting upon the patient's native heart or blood vessel structure, e.g. direct cardiac compression [DCC] devices · CPC title