Document Detail

Characterization and Experimental Results of a Novel Sensor for Measuring the Contact Force from Myenteric Contractions.
MedLine Citation:
PMID:  22531741     Owner:  NLM     Status:  Publisher    
The intraluminal pressures and traction forces associated with the Migrating Motor Complex are well understood; however, the contact forces directly exerted by the bowel wall on a solid, or near solid, bolus have not previously been measured. Quantifying contact forces is an important component to understanding the net force experienced by an in vivo robotic capsule endoscope. In this work, we develop a novel sensor, the Migrating motor complex Force Sensor (MFS), for measuring the contact force generated by the contracting myenteron of the small intestine. The MFS consists of a perfused manometer connected to four torus-shaped balloons custom formed of natural latex rubber and embedded with temperature and pressure sensors. Force exerted on the balloon causes sensor pressure change. In vivo, the MFS measures the magnitude and axial location of contact pressure exerted by the myenteron. The device is tested in vivo in a live porcine model on the middle small bowel. The mean total force per cm of axial length of intestine that occurred over a 16 minute interval in vivo was 1.04 N cm-1 in the middle region of the small intestine; the measured force is in the range of theoretical values.
B Terry; J Schoen; M Rentschler
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-18
Journal Detail:
Title:  IEEE transactions on bio-medical engineering     Volume:  -     ISSN:  1558-2531     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0012737     Medline TA:  IEEE Trans Biomed Eng     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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