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Scissor-style radial expansion device for intestinal microrobots

A technology of micro-robots and expansion devices, applied in the field of medical robots, can solve problems such as difficult shrinkage, difficult assembly, complex tooth chain structure, etc., and achieve the effects of increasing stability, reducing excessively long gear transmission chains, and reducing gear assembly difficulties

Active Publication Date: 2020-07-10
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing gastrointestinal robots are often stuck and difficult to shrink when moving to the limit positions at both ends due to the limitations of the structural design, and there are generally problems with complex tooth chain structures and difficult assembly.

Method used

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  • Scissor-style radial expansion device for intestinal microrobots
  • Scissor-style radial expansion device for intestinal microrobots
  • Scissor-style radial expansion device for intestinal microrobots

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] like figure 1 As shown, this embodiment includes: a scissors type radial expansion mechanism 1, a coaxial reverse rotation drive mechanism 2 and a drive deceleration device 3, wherein: the drive deceleration device 3 transmits power to the The scissor-type radial expansion mechanism 1 drives the scissor-type radial expansion mechanism 1 to expand and contract.

[0019] like figure 2 As shown, the scissor-type radial expansion mechanism 1 includes: scissor-type telescopic mechanism 4, 5 and 6, three-jaw butterfly disc group 7, axial top floor baffle plate 8, central support column 9 and axial The bottom baffle 10, wherein: the three-claw butterfly disc group 7 is rotated and arranged between the axial top baffle 8 and the axial bottom baffle 10 through the central support column 9, and the scissor type telescopic mechanisms 4, 5 and 6 are all Distributed on the outer periphery of the axial top baffle plate 8 and the axial bottom baffle plate 10 , the two input ends of...

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Abstract

The invention relates to a scissor type radial dilating device for an intestinal tract miniature robot. The scissor type radial dilating device comprises a scissor and fork type radial dilating mechanism, a coaxial backward rotating driving mechanism and a driving decelerating device, wherein the driving decelerating device is used for transmitting power to the scissor and fork type radial dilating mechanism through the coaxial backward rotating driving mechanism, so that the scissor and fork type radial dilating mechanism is driven to do dilating and contracting movement. According to the scissor type radial dilating device disclosed by the invention, the structure of the device is simplified, besides, necessary functions of all existing robots are reserved, and the operating stability ofthe mechanism is improved.

Description

technical field [0001] The invention relates to a technology in the field of medical robots, in particular to a scissor-type radial expansion device for intestinal micro-robots. Background technique [0002] At present, the development of micro-intestinal robots capable of autonomous movement and radial expansion has become a research hotspot in biomedical engineering. As one of the key components in the intestinal robot, the radial expansion device can not only realize the residence of the robot in the intestinal tract, but also expand the intestinal tract so that the robot can observe and treat the intestinal tract. However, due to limitations in structural design, existing gastrointestinal robots tend to get stuck and difficult to shrink when moving to the extreme positions at both ends, and there are generally problems with complex tooth chain structures and difficult assembly. Contents of the invention [0003] Aiming at the above-mentioned deficiencies in the prior ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/31
Inventor 刘大生颜国正王志武韩玎姜萍萍
Owner SHANGHAI JIAO TONG UNIV
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