2026-09-21T21:09:25Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/989472022-01-13T07:54:05Zcom_1721.1_7582com_1721.1_7581col_1721.1_131024
Ian Hunter.
Abah, Colette P. (Colette Patricia)
Massachusetts Institute of Technology. Department of Mechanical Engineering.
Massachusetts Institute of Technology. Department of Mechanical Engineering
2015-09-29T18:54:53Z
2015-09-29T18:54:53Z
2015
2015
http://hdl.handle.net/1721.1/98947
921147376
Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 53-55).
Removing necrotic tissue and foreign materials from wounds is a critical step in the management and treatment of chronic wounds. MIT's BioInstrumentation Laboratory developed a novel debridement technology that uses two high-speed impinging water jets to excise necrotic tissue. However, this device potentially causes accidental injection of water into healthy tissue beneath the wound bed, which can cause injury and necrosis in the healthy tissue. The purpose of this thesis is to explore tissue tension as a solution to reduce the required cutting power and consequently reduce water injection to acceptable levels. After validating the positive effect of tissue tension on the cutting efficiency of the water jet debridement device, we developed a technology that uses angled rolling wheels to tension tissue prior to debridement. This novel tensioner was qualitatively tested and successfully applied local tension at the site of cutting. Suggestions for further testing to improve this device are given. This tissue tensioner shows promise as a complementary appendage to the water jet debridement device.
by Colette P. Abah.
S.B.
55 pages
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Mechanical Engineering.
A tissue tensioner to limit water injection during high pressure water jet debridement
Thesis
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<Abstract>Removing necrotic tissue and foreign materials from wounds is a critical step in the management and treatment of chronic wounds. MIT's BioInstrumentation Laboratory developed a novel debridement technology that uses two high-speed impinging water jets to excise necrotic tissue. However, this device potentially causes accidental injection of water into healthy tissue beneath the wound bed, which can cause injury and necrosis in the healthy tissue. The purpose of this thesis is to explore tissue tension as a solution to reduce the required cutting power and consequently reduce water injection to acceptable levels. After validating the positive effect of tissue tension on the cutting efficiency of the water jet debridement device, we developed a technology that uses angled rolling wheels to tension tissue prior to debridement. This novel tensioner was qualitatively tested and successfully applied local tension at the site of cutting. Suggestions for further testing to improve this device are given. This tissue tensioner shows promise as a complementary appendage to the water jet debridement device.</Abstract>
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