Nickel Micro-spike for Micro-scale Biopsy using LiGA Process

Kim, Gilsub; Park, Sunkil; Koo, Kyo‐in; Choi, Hyun Min; Jung, Myeong Jun; Song, Si Young; Bang, Seoung Min; Cho, Dong‐il Dan

doi:10.1063/1.2436349

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…We have implemented a peristaltic pump with a micro valve in the end. Several kinds of micro-spikes for micro-scale biopsy have already been developed by Byun et al (2004), Kong et al (2005), Kim et al (2007) and Simi et al (2012); in this study we are concerned with designing a precise biopsy jaw with sufficient cutting force, more than 10 N (Greenish et al 2002), and also expect the biopsy process to be safe, repeatable and visible. Two kinds of jaws have been designed for biopsy applications.…”

Section: Locomotion and Biopsy Modulementioning

confidence: 99%

Wireless powered capsule endoscopy for colon diagnosis and treatment

Chen¹,

Yan²,

He³

et al. 2013

Physiol. Meas.

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This paper presents a wireless power transfer system integrated with an active locomotion and biopsy module in an endoscopic capsule for colon inspection. The capsule, which can move automatically, is designed for non-invasive biopsy and visual inspection of the intestine. To supply enough power for multiple functions and ensure safety for the human body, the efficiency of the current power transmission system needs to be improved. To take full advantage of the volume in the capsule body, a novel structure of receiving coils wound on a multi-core of MnZn ferrite hollow cylinder was used; with this new core, the efficiency increased to more than 7.98%. Up to 1.4 W of dc power can be delivered to the capsule as it travels along the gastrointestinal tract. Three micro motors were integrated for pumping, anchoring, locomotion and biopsy. A user interface and RF communication enables the operator to drive the capsule in an intuitive manner. To gauge the efficacy of the wireless power supply in a simulated real-world application, the biopsy and locomotion capabilities of the device were successfully tested in a slippery, soft tube and gut environment in vitro.

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