Title:
DEPTH ADJUSTABLE FLUID MOVEMENT MEDICAL INSTRUMENT USING REFLECTED LIGHT DISTANCE SENSOR AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/004019
Kind Code:
A1
Abstract:
The present invention relates to a depth adjustable fluid movement medical instrument using a reflected light distance sensor capable of inserting a syringe needle to an accurate depth on the basis of information of a distance measured by light reflected from a limiting membrane of a biological body and a control method therefor. The depth adjustable fluid movement medical instrument comprises: a handpiece for injecting or collecting a fluid; a syringe needle fixed to the handpiece and having one side end thereof to be inserted into a biological body exposed; a distance sensor optical fiber, attached to the syringe needle at a fixed distance from an endmost portion of the syringe needle, for measuring an axial distance according to the insertion of the syringe needle; a fluid movement pressure part for adjusting the movement of the fluid and the inside of the biological body through the syringe needle; and a distance sensor measurement part for outputting a signal measuring a relative distance between the tip of the syringe needle located inside an outer limiting membrane and an inner limiting membrane of the biological body by using a tip of the optical fiber located outside the outer limiting membrane of the biological body through the distance sensor optical fiber.
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Inventors:
KIM CHANGSEOK (KR)
JEONG MYUNGYUNG (KR)
KIM DOWON (KR)
KIM KYUJUNG (KR)
JEONG MYUNGYUNG (KR)
KIM DOWON (KR)
KIM KYUJUNG (KR)
Application Number:
PCT/KR2016/006845
Publication Date:
January 04, 2018
Filing Date:
June 27, 2016
Export Citation:
Assignee:
PUSAN NATIONAL UNIV INDUSTRY-UNIV COOPERATION FOUNDATION (KR)
International Classes:
A61B5/00; A61M5/46; A61M5/48; G01C3/06
Foreign References:
| KR20130092560A | 2013-08-20 | |||
| US20160100797A1 | 2016-04-14 | |||
| JP2009072425A | 2009-04-09 | |||
| JP2004503291A | 2004-02-05 | |||
| US20080306391A1 | 2008-12-11 |
Attorney, Agent or Firm:
OH, Wihwan (KR)
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