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Preparation method of a new shape magnetic polymer multi-legged micro crawling robot

A technology of crawling robots and polymers, which is applied to pharmaceutical devices and other medical devices, can solve the problems of low experimental repeatability, complicated process, and no research on micro-robots, and achieve the effect of flexible movement and wide application prospects

Active Publication Date: 2021-11-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there have been many studies on the synthesis of micron-sized robots, but these methods cannot obtain non-spherical, non-rod-shaped particles with regular shapes. The process is complicated and the experiment repeatability is not high. no research precedent

Method used

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  • Preparation method of a new shape magnetic polymer multi-legged micro crawling robot
  • Preparation method of a new shape magnetic polymer multi-legged micro crawling robot
  • Preparation method of a new shape magnetic polymer multi-legged micro crawling robot

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Embodiment 1

[0032] Embodiment one: if Figure 1-4 As shown, the preparation method of a new-shaped magnetic polymer multi-legged micro-crawling robot involved in this embodiment, the best solution of the preparation method of the new-shaped magnetic polymer multi-legged micro-crawling robot:

[0033] 1. Using polystyrene sulfonate sodium (PSS) and polydiallyl dimethyl ammonium chloride (PDDA) to prepare the structural skeleton of the multi-legged soft crawling machine

[0034] Step 1: Prepare 2mg / ml polystyrene sulfonate sodium (PSS) solution and 2mg / ml polydiallyldimethylammonium chloride (PDDA) solution: add 8.775g sodium chloride to 50ml deionized water, Then add 0.5ml polydiallyldimethylammonium chloride solution (PDDA); add 8.775g sodium chloride to 50ml deionized water, then add 0.1g polystyrene sodium sulfonate solid powder (PSS);

[0035] Step 2: Put the polycarbonate porous filter membrane into 2 mg / ml polystyrene sulfonate sodium (PSS) solution, shake for 15 minutes, pour off t...

Embodiment 2

[0048] Embodiment two: if figure 1 As shown, the preparation method of a new shape magnetic polymer multi-legged micro crawling robot involved in this embodiment, the application of the new shape magnetic polymer multi-leg micro crawling robot will prepare the new shape The magnetic polymer multi-legged micro crawling robot is loaded with drugs and put into the blood vessels of the organism to adjust the change period of the external magnetic field, change the angle and intensity parameters, and regulate the movement direction and speed of the multi-legged crawling robot in the blood vessel. Experiments have proved that the multi-legged crawling robot The bionic robot can adapt to various rough terrains and has extremely high stability. The multi-legged shape increases the friction between the crawling robot and the blood vessel wall, making it less likely to be washed away by high-speed blood in the blood vessel, realizing the active action of drugs. Transport, rather than th...

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Abstract

The invention provides a preparation method of a magnetic polymer multi-leg micro crawling robot with a new shape, and belongs to the field of preparation of micro robots. The concrete steps of the preparation method of the multi-legged micron crawling robot of magnetic polymer of a kind of new shape of the present invention are: one, use polystyrene sulfonate sodium (PSS) and polydiallyl dimethyl ammonium chloride (PDDA) to prepare The structural skeleton of the multi-legged soft-bodied crawling machine; second, the electrochemical deposition of metals on the porous filter membrane; third, the removal of the polyelectrolyte layer on the porous filter membrane; fourth, the dissolution of the porous filter membrane as a template. The invention discloses a preparation method of a new-shaped magnetic polymer multi-legged micron crawling robot. The reptile-like bionic robot moves flexibly and can climb over obstacles. The volume is smaller than that of traditional robots, and the resistance of crawling in a complex human environment will be reduced. There are many, which can crawl forward in the inner wall of human blood vessels, carry drugs, carry out autonomous and controllable transportation, and self-propelled to break through biological barriers.

Description

technical field [0001] The invention relates to the preparation of a new-shaped magnetic polymer multi-legged micro-crawling robot that can be attached to the wall of a fluid channel and belongs to the field of micro-robot preparation. Background technique [0002] In the past two decades, swimming microrobots have made some progress in construction methods, driving methods, driving mechanisms and potential biomedical applications. However, in the face of the needs of clinical applications, micro-robots still face challenges in terms of safety, crossing biological barriers, movement mechanisms, intelligent motion control, and biological applications. The current drug delivery strategy mainly relies on the passive diffusion of systemic blood flow, but in the case of thrombus, reflux, etc., it will also hinder the drug delivery from the target to some targets. Many cells, such as neutrophils, have controlled movements in blood vessels despite various adhesions due to low flui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M31/00
CPCA61M31/00
Inventor 王金梦吴志光贺强
Owner HARBIN INST OF TECH