Force-shape self-sensing puncture needle based on light interference and long grating chirp effect

A long grating and optical interference technology, which is applied in the field of medical devices, can solve the problems of sensor measurement accuracy impact, time-consuming cost, etc., and achieve the effect of avoiding experiment and simulation analysis optimization and accurate perception

Pending Publication Date: 2022-03-01
WUHAN UNIV OF TECH
View PDF11 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the deformation monitoring is only carried out through the distributed arrangement of fiber gratings. The measurement accuracy of the sensor in this way is affected by the position and quantity of the fiber gratings. A large number of simulations or experiments are required to optimize the sensor configuration scheme, and the design process takes more time. cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Force-shape self-sensing puncture needle based on light interference and long grating chirp effect
  • Force-shape self-sensing puncture needle based on light interference and long grating chirp effect
  • Force-shape self-sensing puncture needle based on light interference and long grating chirp effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure, not all of them. Based on the described embodiments of the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative effort fall within the protection scope of the present disclosure.

[0060] see figure 1 , figure 2 , a force-shaped self-sensing puncture needle based on optical interference and long grating chirp effect, including a needle body, a positioning plane 1 is set at the end of the needle body away from the needle tip, and three U-shaped grooves are evenly arranged on the side wall of the needle ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a force-shape self-sensing puncture needle based on light interference and long grating chirp effect, which comprises a needle body, a positioning plane is arranged at one end of the needle body far away from a needle tip, Ng U-shaped grooves are uniformly arranged on the side wall of the needle body, first to Ng optical fibers are respectively arranged in the U-shaped grooves, Ng is greater than or equal to 3, and Ng is greater than or equal to 3. Each optical fiber is provided with a segment of chirp fiber grating and an F-P cavity, the chirp fiber grating is arranged at one end far away from the needle tip, the F-P cavity is arranged at one end close to the needle tip, and the chirp fiber grating and the F-P cavity are spaced by a certain distance. According to the invention, the precise monitoring of the whole trace morphological change of the puncture needle and the stress condition of the tip in the needle biopsy operation process is realized.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a force-shaped self-sensing puncture needle based on light interference and long grating chirp effect. Background technique [0002] In the process of clinical diagnosis, it is difficult to characterize the lesion only by imaging examination, and pathological examination of living tissue is the gold standard for diagnosis. In the clinical operation of percutaneous puncture surgery, the puncture needle needs to pass through the skin into the needle, and then reach the target point of the lesion through human tissue for material collection. Due to the intricate physiological structure of human tissues and organs, it is extremely difficult to accurately insert the needle in puncture surgery. Therefore, surgeons have an urgent need for real-time monitoring of the deformation of the puncture needle and the interaction force between the needle tip and human tissue. At present, the c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A61B10/02A61B17/34
CPCA61B10/0266A61B17/34A61B17/3494
Inventor 李天梁宋珍珍苏轶飞谭跃刚周祖德
Owner WUHAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap