IP Library Granted Patent US 11,304,767
Granted Patent B2
US 11,304,767 · App. 16/592,171 · Granted Apr 19, 2022

Origami robots, systems, and methods of treatment

Inventors: Daniela Rus (Weston, MA); Shuhei Miyashita (Sheffield, GB); Dana Damian (Sheffield, GB)
Assignee: Massachusetts Institute of Technology
A61B34/30A61B17/52A61B34/72A61B34/73A61M31/00A61B2017/00004A61B2017/00526A61B2034/303A61M2210/1042
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Quick Facts
Patent No.
US 11,304,767
App. No.
16/592,171
Granted
Apr 19, 2022
Kind
B2
Abstract

Origami robots, and associated systems, methods of treatment, and methods of manufacture are provided. A system includes an origami robot encapsulated for ingestion by a patient, such as in a biocompatible material that is dissolvable or meltable within the gastrointestinal tract. A method of treatment includes delivering an origami robot in a folded position into a gastrointestinal tract of a patient, causing the origami robot to unfold within the gastrointestinal tract, and directing the origami robot to a site requiring treatment in the gastrointestinal tract.

Claims (23)

1. A method of preparing an origami robot for use in gastrointestinal tract, comprising:

constructing the origami robot such that it comprises a foldable body portion that comprises one or more folds, slits, or patches of material configured to move in response to stimulus external to the patient, to induce locomotion of the origami robot;

exposing the foldable body portion to heat effective to shrink and/or fold the origami robot to a size suitable for encapsulation, and

encapsulating the origami robot in a folded position with an encapsulation material configured to (i) permit the origami robot to be swallowed by a patient, and (ii) release the origami robot from the encapsulation material in the stomach of the patient, such that the origami robot unfolds to an operable, unfolded position by removing the encapsulation material.

2. The method of claim 1 , wherein the encapsulation material comprises a biocompatible material that is dissolvable or meltable within the stomach.

3. The method of claim 2 , wherein the encapsulation material comprises ice.

4. The method of claim 1 , wherein the one or more folds, slits, or patches of material are configured to expand or shrink when exposed to heat or a magnetic field, to induce the locomotion of the origami robot.

5. The method of claim 1 , wherein the foldable body portion comprises an actuation material layer and a structural material layer.

6. The method of claim 5 , wherein the actuation material layer comprises a heat sensitive film.

7. The method of claim 5 , wherein the structural material layer comprises an organic animal tissue material.

8. The method of claim 5 , wherein the foldable body portion further comprises a layer comprising an active pharmaceutical ingredient configured to be released following ingestion of the origami robot.

9. The method of claim 1 , wherein the origami robot comprises a magnet configured to retrieve a button battery in the stomach of the patient.

10. A method of preparing an origami robot for use in gastrointestinal tract, comprising:

encapsulating the origami robot in a folded position with an encapsulation material configured to (i) permit the origami robot to be swallowed by a patient, and (ii) release the origami robot from the encapsulation material in the stomach of the patient, such that the origami robot unfolds to an operable, unfolded position by removing the encapsulation material,

wherein the origami robot comprises a foldable body portion that comprises one or more folds, slits, or patches of material configured to move in response to a stimulus external to the patient, to induce locomotion of the origami robot, and

wherein the encapsulation material comprises a biocompatible material that is dissolvable or meltable within the stomach.

11. The method of claim 10 , wherein the encapsulation material comprises ice.

12. The method of claim 10 , wherein the one or more folds, slits, or patches of material are configured to expand or shrink when exposed to heat or a magnetic field, to induce the locomotion of the origami robot.

13. The method of claim 10 , wherein the foldable body portion comprises an actuation material layer and a structural material layer.

14. The method of claim 13 , wherein the actuation material layer comprises a heat sensitive film.

15. The method of claim 13 , wherein the structural material layer comprises an organic animal tissue material.

16. The method of claim 13 , wherein the foldable body portion further comprises a layer comprising an active pharmaceutical ingredient configured to be released following ingestion of the origami robot.

17. The method of claim 10 , wherein the origami robot comprises a magnet configured to retrieve a button battery in the stomach of the patient.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 7, 2019
From: RUS, DANIELA; MIYASHITA, SHUHEI
To: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Reel/Frame 050642/0026 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 7, 2019
From: DAMIAN, DANA
To: CHILDREN'S MEDICAL CENTER CORPORATION
Reel/Frame 050642/0054 →
Continuity (3)
Division 15493956 · Apr 21, 2017
Provisional Application 62325665 · Apr 21, 2016
Related Publication 20200038061A1 · Feb 6, 2020