[Magnetic field numerical calculation and analysis for magnetic coupling of centrifugal blood pump for extracorporeal circulation].

Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2013 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 3090

Using a three-dimensional static magnetic field edge element method in Ansys, the paper numerically calculates the magnetic field of a disc magnetic coupling and analyzes how key structural parameters relate to transmission magnetic torque.

Study snapshot

PublicationSheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2013

Study typeengineering

Reported directionUnclear

Evidence ratingInsufficient

Abstract

This paper mainly studies the driving system of centrifugal blood pump for extracorporeal circulation, with the core being disc magnetic coupling. Structure parameters of disc magnetic coupling are related to the ability of transferring magnetic torque. Therefore, it is necessary to carry out disc magnetic coupling permanent magnet pole number (n), air gap length (L(g)), permanent magnet thickness (L(m)), permanent magnet body inside diameter (R(i)) and outside diameter (R(o)), etc. thoroughly. This paper adopts the three-dimensional static magnetic field edge element method of Ansys for numerical calculation, and analyses the relations of magnetic coupling each parameter to transmission magnetic torque. It provides a good theory basis and calculation method for further optimization of the disc magnetic coupling.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeengineering

Effect directionunclear

PopulationNot supplied

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

Outcomes measured

Numerical calculation of 3D static magnetic field for disc magnetic coupling
Relationship between magnetic coupling structural parameters (pole number, air gap length, magnet thickness, inner/outer diameter) and transmitted magnetic torque

Limitations

No biological/health outcomes described in the abstract
No quantitative results reported in the abstract
Exposure characteristics (field strength, frequency) not specified

View raw extracted JSON

{
  "study_type": "engineering",
  "exposure": {
    "band": null,
    "source": "disc magnetic coupling in centrifugal blood pump drive system",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Numerical calculation of 3D static magnetic field for disc magnetic coupling",
    "Relationship between magnetic coupling structural parameters (pole number, air gap length, magnet thickness, inner/outer diameter) and transmitted magnetic torque"
  ],
  "main_findings": "Using a three-dimensional static magnetic field edge element method in Ansys, the paper numerically calculates the magnetic field of a disc magnetic coupling and analyzes how key structural parameters relate to transmission magnetic torque.",
  "effect_direction": "unclear",
  "limitations": [
    "No biological/health outcomes described in the abstract",
    "No quantitative results reported in the abstract",
    "Exposure characteristics (field strength, frequency) not specified"
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "centrifugal blood pump",
    "extracorporeal circulation",
    "disc magnetic coupling",
    "static magnetic field",
    "Ansys",
    "edge element method",
    "magnetic torque",
    "numerical calculation"
  ],
  "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: Not supplied
PubMed: 24645605

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