Patent ID: 9636270
Date: 2017-05-02
CPC Classifications: A61F,A61H

Claim:
1. A finger assist device assisting movement of a finger comprising: a nipper adapted to be worn on the finger; a plurality of units rotatably connected to one another in a bending direction, at least one of the units being coupled to the nipper; a sensor provided in the nipper to detect a contact force generated toward the nipper; a driver drivably connected to the plurality of units to impart relative rotation thereto; and a drive force controller operatively associated with the sensor and driver, the controller being configured to control a drive force of the driver in response to the contact force detected by the sensor, wherein the sensor includes a first sensor that detects a first contact force generated in the bending direction and a second sensor that detects a second contact force generated in a spreading direction opposite the bending direction, wherein the drive force controller being configured to increase the drive force for rotating the units in the bending direction if the first contact force is larger than the second contact force, and to decrease the drive force for rotating the units in the bending direction if the first contact force is smaller than the second contact force.