Magnetic control device and capsule endoscope control system

Patent metadata

Field	Value
Publication number	US-12507871-B2
Application number	US-202118015531-A
Country	US
Kind code	B2
Filing date	Jul 9, 2021
Priority date	Jul 10, 2020
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

A magnetic control device and a capsule endoscope control system are provided. The magnetic control device comprises: a first support, a second support, a magnetic component, a first driving mechanism and a second driving mechanism. The magnetic component comprises a housing portion and a shaft portion connected to the housing portion, the housing portion is provided with a magnet and a drive fitting portion, and the shaft portion is rotatably connected to the second support. The first driving mechanism is disposed on the first support and is connected to the second support, the second driving mechanism is disposed on the second support and is connected to the magnetic component. The first driving mechanism drives the second support to drive the magnetic component to rotate around a first axis, the second driving mechanism drives the magnetic component to rotate around a second axis, the first axis intersects the second axis.

First claim

The invention claimed is:

1 . A magnetic control device, comprises:
a support assembly, comprising a first support and a second support; a magnetic component, comprising a housing portion and a shaft portion connected to the housing portion, wherein the housing portion is provided with a magnet and a drive fitting portion, and the shaft portion is rotatably connected to the second support; a first driving mechanism, disposed on the first support and drivingly connected to the second support to drive the magnetic component to rotate around a first axis; and a second driving mechanism, disposed on the second support and drivingly connected to the drive fitting portion to drive the magnetic component to rotate around a second axis; wherein the first axis intersects the second axis; an electric slip ring, comprising a first ring body and a second ring body, which configured to rotate relative to each other; a first zeroing mechanism, comprising a first code disk and a first photoelectric switch, wherein the first code disk is connected to the first support, and the first photoelectric switch is connected to the second support.

2 . The magnetic control device of claim 1 , wherein
the drive fitting portion is arranged around the housing portion with the second axis as a center line; and the second driving mechanism is configured to drive the drive fitting portion to rotate to drive the housing portion to rotate around the second axis.

3 . The magnetic control device of claim 1 , wherein
the second driving mechanism comprises a second driving member and a second transmission assembly, wherein an input end of the second transmission assembly is connected to the second driving member and an output end of the second transmission assembly is connected to the drive fitting portion of the housing portion, and the second driving member is configured to drive the second transmission assembly so that the second transmission assembly drives the drive fitting portion and the housing portion to rotate.

4 . The magnetic control device of claim 1 ,
wherein the drive fitting portion comprises a first gear, and the first gear is sleeved on the housing portion; and the second driving mechanism comprises at least a second gear, and the second gear is meshed with the first gear; or the drive fitting portion comprises a first belt pulley, and the first belt pulley is sleeved on the housing portion; the second driving mechanism comprises a second belt pulley and a belt, and the belt is sleeved on the first belt pulley and the second belt pulley.

5 . The magnetic control device of claim 1 ,
wherein the second support comprises:
a connecting plate and side plates respectively arranged on two opposite sides of the connecting plate;
the first driving mechanism is drivingly connected to the connecting plate;
the housing portion is located between the side plates, and the shaft portion is rotatably connected to the side plates; and
the second driving mechanism is connected to the connecting plate and/or the side plates.

6 . The magnetic control device of claim 1 , wherein
the second driving mechanism comprises a second driving member, a rotor and a permanent magnet; wherein the permanent magnet is mounted on the rotor, the second driving member is drivingly connected to the rotor, and the rotor is configured to drive drives the permanent magnet to rotate, then to drive the magnetic component to rotate.

7 . The magnetic control device of claim 6 , wherein
the rotor comprises a first half shaft body and a second half shaft body, which are connected to each other; the first half shaft body has a first groove, and the second half shaft body has a second groove; the first groove and the second groove are configured to form an accommodating cavity, and the permanent magnet is fixedly arranged in the accommodating cavity.

8 . The magnetic control device of claim 7 , wherein
the rotor further comprises a third gear; wherein the third gear is sleeved on the first half shaft body or the second half shaft body; and the second driving member comprises a fourth gear that is meshed with the third gear.

9 . The magnetic control device of claim 1 , wherein
the first ring body is connected to the first support and is connected to a power supply unit of the magnetic control device through a first cable; and the second ring body is connected to the second support and is connected to the second driving mechanism through a second cable.

10 . The magnetic control device of claim 9 , wherein the first ring body and the second ring body are both annular sheet-shaped bodies; and
the electric slip ring comprises a PCB type slip ring.

11 . The magnetic control device of claim 1 , wherein the first code disk is connected to the first support, and the first photoelectric switch is connected to the second support;
the first photoelectric switch comprises a first transmitting portion and a first receiving portion which are respectively disposed on two sides of the first code disk, and the first code disk is provided with a first through portion; wherein the second support is configured to rotate to a position where the first receiving portion receives a signal from the first transmitting portion, while the magnetic component is located at an initial working position in a first direction.

12 . The magnetic control device of claim 1 , wherein the magnetic control device comprises a second zeroing mechanism;
the second zeroing mechanism comprises a second code disk and a second photoelectric switch; the second code disk is connected to the shaft portion, and the second photoelectric switch is connected to the second support; the second photoelectric switch comprises a second transmitting portion and a second receiving portion which are respectively disposed on two sides of the second code disk, and the second code disk is provided with a second through portion; wherein the housing portion is configured to rotate to a position where the second receiving portion receives a signal from the second transmitting portion, the magnetic component is located at an initial working position in a second direction.

13 . A capsule endoscope control system, comprising:
a three-axis displacement base and a magnetic control device connected to the three-axis displacement base; wherein the magnetic control device comprises:
a support assembly, comprising a first support and a second support;
a magnetic component, comprising a housing portion and a shaft portion connected to the housing portion, wherein the housing portion is provided with a magnet and a drive fitting portion, and the shaft portion is rotatably connected to the second support;
a first driving mechanism, disposed on the first support and drivingly connected to the second support to drive the magnetic component to rotate around a first axis; and
a second driving mechanism, disposed on the second support and drivingly connected to the drive fitting portion to drive the magnetic component to rotate around a second axis, wherein the first axis intersects the second axis;
an electric slip ring, comprising a first ring body and a second ring body, configured to rotate relative to each other;
a first zeroing mechanism, comprising a first code disk and a first photoelectric switch, wherein the first code disk is connected to the first support, and the first photoelectric switch is connected to the second support.

14 . The capsule endoscope control system of claim 13 , wherein
the drive fitting portion is arranged around the housing portion with the second

Assignees

• Ankon Medical Tech Shanghai Co Ltd
• Anx Ip Holding Pte Ltd

Inventors

• Shen Yueyue
• Zhang Shaobang
• Duan Xiaodong

Classifications

• A61B1/041

  Capsule endoscopes for imaging · CPC title

• A61B1/00027

  characterised by power supply · CPC title

• A61B1/00158 Primary

  using magnetic field · CPC title

• A61B1/045 Primary

  Control thereof · CPC title