Development of a shape memory alloy multiple-point injector for chemotherapy

W. Xu; T. G. Frank; A. Cuschieri

doi:10.1243/095441105X9354

Development of a shape memory alloy multiple-point injector for chemotherapy

W. Xu
, T. G. Frank
, A. Cuschieri

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A medical needle is described that allows injection to take place at multiple sites through a single stab wound. This is achieved by extruding multiple, thin, and curved internal needles from a larger, straight, outer needle. The development and finite element modelling of the shape memory alloy (SMA) inner needles is presented in this paper. A non-linear elastic element model was used in this process to allow for the non-linear properties of the alloy and the large deformations that occur. The model provided maximum strain values and penetration forces for the inner needles. The deformation force on the tip of the needle was measured against displacement to confirm the predicted penetration force. Applications for the device include the treatment of liver cancer by direct injection of alcohol into the tumours.

Original language	English
Pages (from-to)	213-217
Number of pages	5
Journal	Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
Volume	219
Issue number	3
DOIs	https://doi.org/10.1243/095441105X9354
Publication status	Published - 2005

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

Keywords

Shape memory alloy (SMA)
SMA
Superelastic
Needle and non-linear elastic

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10.1243/095441105X9354

Cite this

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title = "Development of a shape memory alloy multiple-point injector for chemotherapy",

abstract = "A medical needle is described that allows injection to take place at multiple sites through a single stab wound. This is achieved by extruding multiple, thin, and curved internal needles from a larger, straight, outer needle. The development and finite element modelling of the shape memory alloy (SMA) inner needles is presented in this paper. A non-linear elastic element model was used in this process to allow for the non-linear properties of the alloy and the large deformations that occur. The model provided maximum strain values and penetration forces for the inner needles. The deformation force on the tip of the needle was measured against displacement to confirm the predicted penetration force. Applications for the device include the treatment of liver cancer by direct injection of alcohol into the tumours.",

keywords = "Shape memory alloy (SMA), SMA, Superelastic, Needle and non-linear elastic",

author = "W. Xu and Frank, \{T. G.\} and A. Cuschieri",

note = "dc.publisher: Professional Engineering Publishing. ",

year = "2005",

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pages = "213--217",

journal = "Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine",

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T1 - Development of a shape memory alloy multiple-point injector for chemotherapy

AU - Xu, W.

AU - Frank, T. G.

AU - Cuschieri, A.

N1 - dc.publisher: Professional Engineering Publishing.

PY - 2005

Y1 - 2005

N2 - A medical needle is described that allows injection to take place at multiple sites through a single stab wound. This is achieved by extruding multiple, thin, and curved internal needles from a larger, straight, outer needle. The development and finite element modelling of the shape memory alloy (SMA) inner needles is presented in this paper. A non-linear elastic element model was used in this process to allow for the non-linear properties of the alloy and the large deformations that occur. The model provided maximum strain values and penetration forces for the inner needles. The deformation force on the tip of the needle was measured against displacement to confirm the predicted penetration force. Applications for the device include the treatment of liver cancer by direct injection of alcohol into the tumours.

AB - A medical needle is described that allows injection to take place at multiple sites through a single stab wound. This is achieved by extruding multiple, thin, and curved internal needles from a larger, straight, outer needle. The development and finite element modelling of the shape memory alloy (SMA) inner needles is presented in this paper. A non-linear elastic element model was used in this process to allow for the non-linear properties of the alloy and the large deformations that occur. The model provided maximum strain values and penetration forces for the inner needles. The deformation force on the tip of the needle was measured against displacement to confirm the predicted penetration force. Applications for the device include the treatment of liver cancer by direct injection of alcohol into the tumours.

KW - Shape memory alloy (SMA)

KW - SMA

KW - Superelastic

KW - Needle and non-linear elastic

U2 - 10.1243/095441105X9354

DO - 10.1243/095441105X9354

M3 - Article

SN - 0954-4119

VL - 219

SP - 213

EP - 217

JO - Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine

JF - Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine

IS - 3

ER -

Development of a shape memory alloy multiple-point injector for chemotherapy

Abstract

UN SDGs

Keywords

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