Magnetic control device and magnetically controlled capsule endoscope system

Patent metadata

Field	Value
Publication number	US-12446758-B2
Application number	US-202118015530-A
Country	US
Kind code	B2
Filing date	Jul 9, 2021
Priority date	Jul 10, 2020
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

The present invention provides a magnetic control device and a magnetically controlled capsule endoscope system. The magnetic control device comprises a mounting base, a base, a magnetic component, a first motor and a second motor. The mounting base is for hoisting the magnetic control device, the base is connected to the mounting base, the magnetic component comprises a magnet for driving the capsule endoscope to rotate, the first motor drives the magnetic component to rotate around a first axis, and the first motor passes through the mounting base and is arranged on the base along a first direction, the second motor drives the magnetic component to rotate around a second axis, the second motor is arranged on the base, and the first axis intersects the second axis. By reasonably utilizing a mounting space of the magnetic control device, the structure is more compact, small and convenient to move.

First claim

The invention claimed is:

1. A magnetic control device for controlling a capsule endoscope, comprises:
a mounting base for hoisting the magnetic control device;
a base connected to the mounting base;
a magnetic component, comprising a magnet for driving the capsule endoscope to rotate;
a first motor for controlling the magnetic component to rotate around a first axis, wherein the first motor passes through the mounting base and is mounted on the base along a first direction of the magnetic control device; and
a second motor for controlling the magnetic component to rotate around a second axis,
wherein the second motor is mounted on the base;
the first axis intersects the second axis;
the base comprises an upper base and a lower base;
the upper base is located between the mounting base and the lower base along the first direction of the magnetic control device, and a space between the mounting base and the lower base is a mounting space;
the first motor is mounted on the upper base; and
the second motor is connected to the lower base and is disposed in the mounting space between the mounting base and the lower base:
the magnetic control device further comprises a conductive slip ring, and the conductive slip ring comprises an upper slip ring and a lower slip ring; and
the upper slip ring is mounted on the upper base and is electrically connected to a power supply of the magnetic control device, and the lower slip ring is mounted on the lower base and is electrically connected to the second motor.

2. The magnetic control device of claim 1 , wherein an outer edge of the lower base extends beyond an outer edge of the upper base.

3. The magnetic control device of claim 1 , wherein
the magnetic control device further comprises a mounting plate connected to the base; and
at least part of the mounting plate extends to the mounting space, and the second motor is connected to the base through the mounting plate.

4. The magnetic control device of claim 3 , wherein
the conductive slip ring is a PCB type slip ring, and the thickness of the PCB type slip ring is less than or is equal to 10 mm.

5. The magnetic control device of claim 4 , wherein
the magnetic component comprises a housing; and
the housing comprises a left housing and a right housing, wherein
the left housing is connected to the right housing through a flange, and the magnet of the magnetic component is secured in the housing.

6. The magnetic control device of claim 5 , wherein two ends of the lower base are provided with connecting plates along a second direction of the magnetic control device, and the connecting plates extend away from the upper base along the first direction of the magnetic control device; and
the housing is located between the two connecting plates and is rotatably connected to the two connecting plates, and the housing rotates as driven by the first motor and the second motor.

7. The magnetic control device of claim 6 , wherein
the magnetic control device further comprises
at least one rotation origin detection mechanism for determining whether the magnetic component is at an origin of rotation; and
the rotation origin detection mechanism comprises a switch assembly electrically connected to the first motor and/or the second motor, and a switch mating member cooperates with the switch assembly to control the on/off of a control circuit.

8. The magnetic control device of claim 7 , wherein the rotation origin detection mechanism is mounted between the upper base and the lower base, the switch assembly is mounted on one of the upper base or the lower base, and the switch mating member is mounted on the other of the upper base or the lower base; and wherein the first motor is controlled to start and stop through a relative rotation between the switch assembly and the switch mating member.

9. The magnetic control device of claim 7 , wherein
the rotation origin detection mechanism is mounted at a position where the lower base and the magnetic component are connected;
the switch assembly is mounted on one of the lower base or the magnetic component;
the switch mating member is mounted on the other of the lower base or the magnetic component; and
wherein the second motor is controlled to start and stop through a relative rotation between the switch assembly and the switch mating member.

10. The magnetic control device of claim 7 , wherein
the switch assembly is a photoelectric switch, the switch mating member is a code disk, and the code disk is provided with a detection portion; and
along with a relative rotation between the photoelectric switch and the code disk, when the photoelectric switch detects the detection portion, a control circuit of the photoelectric switch is disconnected, and the magnetic component stops at the origin of rotation.

11. The magnetic control device of claim 7 , wherein
the switch assembly is a microswitch group, and the switch mating member is a contact mating portion; and
along with a relative rotation between the microswitch group and the contact mating portion, when the microswitch group detects the contact mating portion, a control circuit of the microswitch group is disconnected, and the magnetic component stops at the origin of rotation.

12. The magnetic control device of claim 1 , wherein the first motor and/or the second motor is a DC motor or a stepper motor, so that the magnetic control device does not need an encoder and/or a reducer.

Assignees

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

Inventors

• Han Chao
• Zhang Shaobang
• Duan Xiaodong

Classifications

• A61B1/041 Primary

  Capsule endoscopes for imaging · CPC title

• A61B1/00158

  using magnetic field · CPC title

• A61B1/045

  Control thereof · CPC title

• A61B1/00133 Primary

  Drive units for endoscopic tools inserted through or with the endoscope · CPC title

• A61B34/73

  Manipulators for magnetic surgery · CPC title