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Magnetic control blood vessel robot for cleaning thrombus

A technology of robots and micro robots, applied in the field of vascular robots

Inactive Publication Date: 2011-08-17
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the variable pump needs to be equipped with a power supply in the vascular robot to work. If the variable pump is applied to the above-mentioned magnetic field-driven vascular robot, a power supply device needs to be added, which obviously cannot work in the blood vessel for a long time.

Method used

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  • Magnetic control blood vessel robot for cleaning thrombus
  • Magnetic control blood vessel robot for cleaning thrombus
  • Magnetic control blood vessel robot for cleaning thrombus

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Embodiment Construction

[0021] see Figure 1 to Figure 4 , the micro-robot in the vascular robot of the present invention has a capsule-shaped casing composed of an upper casing 1 and a lower casing 2, and a suction nozzle 3 and a nozzle 4 are respectively embedded at both ends of the casing . The pump body of the liquid pump 5 is made of an elastic film, the middle of which is cylindrical, and the two ends are respectively connected with the liquid inlet pipe 6 and the liquid outlet pipe 7, wherein the liquid inlet pipe 6 is provided with a one-way valve for blood to flow into the pump body. Valve 21, another one-way valve 21 that allows blood to flow out of the pump body is provided in the liquid outlet pipe 7 . The liquid pump 5 is coaxially installed in the middle of the inner cavity of the capsule-shaped housing, wherein, the thrombus collector 8 and the suction nozzle 3 are connected in series on the liquid inlet pipe 6 , and the nozzle 4 is connected in series on the liquid outlet pipe 7 . T...

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Abstract

The invention discloses a magnetic control blood vessel robot for cleaning thrombus. The robot consists of a miniature robot and an external driver and is characterized in that a liquid pump (5) and a thrombus collector (8) connected with an inlet of the liquid pump (5) in series are arranged in a miniature robot body; the liquid pump (5) is provided with a cylindrical pump body made by an elastic film; a plurality of permanent magnets (9) provided with central holes (9-1) are circumferentially and uniformly distributed on the outer wall of the pump body; guide rods (10) are respectively arranged at the positions of the inner wall of a cavity of the miniature robot body corresponding to the permanent magnets (9); each guide rod (10) respectively extends into the central hole (9-1) of the corresponding permanent magnet (9); a spiral spring (11) is sleeved on each guide rod (10); the external driver is provided with an annular supporting frame (13); and direct current electromagnets (14) with the same quantity as the permanent magnets (9) are uniformly distributed on the annular supporting frame (13).

Description

technical field [0001] The invention relates to a microrobot, in particular to a blood vessel robot. Background technique [0002] Vascular robot is a micro-robot that can enter blood vessels and move freely in blood vessels. It can complete thrombus removal, tumor resection, and drug delivery in blood vessels. It is of great significance to the prevention and treatment of cardiovascular diseases. Hotspots in the field of micro-robot research. [0003] The driving methods of vascular robots are divided into two types: cable drive and cableless drive. The cableless drive includes self-powered drive and external magnetic field drive. Among them, the external magnetic field drive has the advantages of easy miniaturization and unlimited working time. , so it has great application prospects. For example, the Chinese Invention Patent Application Publication No. 200510046377.1 discloses a "external magnetic field precession drive control method for intravascular on-line medical m...

Claims

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Application Information

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IPC IPC(8): A61B17/22
Inventor 江帆
Owner GUANGZHOU UNIVERSITY
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