Bidirectional shape memory device

Marion, III, John E.; Bearinger, Jane P.; Wilson, Thomas S.; Small, IV, Ward; Maitland, Duncan J.

Title: Bidirectional shape memory device

Patent · Tue Oct 23 00:00:00 EDT 2018

OSTI ID:1491253

Marion, III, John E.; Bearinger, Jane P.; Wilson, Thomas S.; Small, IV, Ward; Maitland, Duncan J.

A resistively heated shape memory polymer device is operated using resistive heating to heat the shape memory polymer device. The resistively heated shape memory polymer device is made by providing a wire that includes a resistive medium. The wire is coated with a first shape memory polymer. The wire is exposed and electrical leads are attached to the wire. In one embodiment the shape memory polymer device is in the form of a clot destruction device. In another embodiment the shape memory polymer device is in the form of a microvalve. In another embodiment the shape memory polymer device is in the form of a micropump. In yet another embodiment the shape memory polymer device is in the form of a thermostat or relay switch.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC52-07NA27344

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Number(s):: 10,107,270

Application Number:: 15/053,293

OSTI ID:: 1491253

Resource Relation:: Patent File Date: 2016 Feb 25

Country of Publication:: United States

Language:: English

References (13)

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Shape memory polymer (SMP) gripper with a release sensing system Maitland, Duncan J.; Lee, Abraham P.; Schumann, Daniel L. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6102917 US Patent Document 6,102,917	patent	August 2000
Biodegradable shape memory polymers Langer, Robert S.; Lendlein, Andreas; Schmidt, Annette https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6160084 US Patent Document 6,160,084	patent	December 2000
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Light diffusing fiber optic chamber Maitland, Duncan J. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6418252 US Patent Document 6,418,252	patent	July 2002
Shape memory polymer actuator and catheter Maitland, Duncan J.; Lee, Abraham P.; Schumann, Daniel L. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6740094 US Patent Document 6,740,094	patent	May 2004
System for diffusing light from an optical fiber or light guide Maitland, Duncan J.; Small, IV, Ward; Wilson, Thomas S. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7386203 US Patent Document 7,386,203	patent	June 2008
Shape memory polymer medical device Maitland, Duncan J.; Benett, William J.; Bearinger, Jane P. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7744604 US Patent Document 7,744,604	patent	June 2010
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Shape memory polymer medical device Maitland, Duncan; Benett, William J.; Bearinger, Jane P. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20060009785 US Patent Application 11/172668; 20060009785	patent-application	January 2006
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Prototype Fabrication and Preliminary In Vitro Testing of a Shape Memory Endovascular Thrombectomy Device Small, Ward; Wilson, Thomas S.; Buckley, Patrick R. IEEE Transactions on Biomedical Engineering, Vol. 54, Issue 9 https://doi.org/10.1109/TBME.2007.892921	journal	September 2007

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