Lumbar retractor
AssigneeKorea University Research and Business Foundation
InventorsSang Heon Lee, Nack Hwan Kim, Chul Hwan Jang, Se Jun Oh, In Beom Kim, Kyung Hee Han
Life of this patent
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Abstract
A lumbar retractor according to an embodiment comprises: a first fixing part for fixing the user's lumbar regions; a second fixing part for fixing the user's pelvic regions; and a connection part disposed between the first fixing part and the second fixing part to connect the first fixing part and the second fixing part, wherein the distance between the first fixing part and the second fixing part can be adjusted by changing the length of the connection part, and the first fixing part can press each of a plurality of segments of the user's lumbar regions individually.
Claims5
A lumbar retractor comprising:
- a first fixer configured to fix a thoracic region of a user;
- a second fixer configured to fix a pelvic region of the user;
- and
- a connector disposed between the first fixer and the second fixer and configured to connect the first fixer and the second fixer,
- wherein a distance between the first fixer and the second fixer is adjustable as a length of the connector is changed, and
- the first fixer is configured to be capable of pressing, in an individually and respectively selectable manner, a plurality of segments of a thoracic vertebrae of the user,
- and further comprising:
- an actuator disposed to connect a lower side of the first fixer and a lower side of the second fixer, and
- a sensor configured to sense the length of the connector which is changed by extension of the distance between the first fixer and the second fixer by the actuator,
- wherein the lumbar retractor is configured to determine a time point when the length of the connector sensed by the sensor is no longer extended compared to the traction force of a predetermined value provided by the actuator as the time point when the user feels pain, and
- a controller is configured to reduce or stop the traction force by controlling an operation of the actuator when the time point when the user feels pain is determined by the lumbar retractor.
Dependencies are inferred from the claim text.