The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 29, 2025

Filed:

Dec. 13, 2021
Applicant:

City University of Hong Kong, Hong Kong, HK;

Inventors:

Yajing Shen, Hong Kong, HK;

Xiong Yang, Hong Kong, HK;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09J 189/00 (2005.12); A61M 31/00 (2005.12); A61M 37/00 (2005.12); C08K 3/08 (2005.12); C09J 129/04 (2005.12); H01F 1/06 (2005.12); H01F 7/02 (2005.12);
U.S. Cl.
CPC ...
A61M 31/00 (2012.12); A61M 37/00 (2012.12); C08K 3/08 (2012.12); C09J 129/04 (2012.12); C09J 189/00 (2012.12); H01F 1/06 (2012.12); H01F 7/0242 (2012.12); A61M 2037/0007 (2012.12); A61M 2205/0272 (2012.12); A61M 2207/00 (2012.12); C08K 2003/0856 (2012.12); C08K 2201/01 (2012.12);
Abstract

This invention provides parasitic millirobots that can effectively adapt to an unstructured environment and coherently interact with diverse objects in order to fulfil various application needs. Particularly, a minimalist millirobot construction strategy by splashing composited agglutinate magnetic spray (M-spray) is adopted, which is capable of self-turning multifarious milli-/centi-objects into parasitic millirobots on-demand. Through taking full advantage of the objects' inherent structure and a covered thin drivable film, the M-spray demonstrates superior handling (from 1-D to 3-D structures) and loading capabilities (up to thousand-fold and hundred-fold of its volume and weight, respectively) while with neglectable size increment (as low as 1%) to target. Moreover, benefitting from peculiarities of online reprogramming and controllable disintegration, the parasitic millirobots can rewrite its locomotion mode according to the task and disintegrate themselves after mission accomplished, offering high adaptivity and compatibility for in vivo biomedical applications. Methods for conversion and fabrication thereof are also provided.


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