A wireless acoustic emitter for passive localization in liquids

Nagy, Zoltán; Flückiger, Michael; Ergeneman, Olgaç; Probst, Martin; Nelson, Bradley J.

doi:10.1109/robot.2009.5152292

Cited by 13 publications

(4 citation statements)

References 14 publications

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“…Moreover, the capsule must always lie in the scanning plane to be sensed [85]. This drawback can be overcome by the second approach, in which an ultrasound transducer is embedded inside the capsule, and external receivers are located around the patient's abdomen to detect the emitted ultrasonic signals [85][86]. Since the ultrasonic signals only need to travel through the media once, this approach offers twice deeper penetration than the first approach.…”

Section: Other Localization Methodsmentioning

confidence: 99%

A Review of Localization Systems for Robotic Endoscopic Capsules

Than

Alici

Zhou

et al. 2012

IEEE Trans. Biomed. Eng.

231

152

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Section: Other Localization Methodsmentioning

confidence: 99%

A Review of Localization Systems for Robotic Endoscopic Capsules

Than

Alici

Zhou

et al. 2012

IEEE Trans. Biomed. Eng.

231

152

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“…With such a technique, the MR itself acts as an US emitter by incorporating a microtransducer ( e . g ., a cantilever) in its architecture . The emitted signal can be tracked through the body by placing receiver antennas around the patient. , In principle, since the ultrasonic signals only need to travel through the media once, this approach offers twice the penetration depth than the pulse-echo mode.…”

Section: Conventional Imaging Techniquesmentioning

confidence: 99%

Medical Imaging of Microrobots: Toward In Vivo Applications

et al. 2020

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Medical microrobots (MRs) have been demonstrated for a variety of non-invasive biomedical applications, such as tissue engineering, drug delivery, and assisted fertilization, among others. However, most of these demonstrations have been carried out in in vitro settings and under optical microscopy, being significantly different from the clinical practice. Thus, medical imaging techniques are required for localizing and tracking such tiny therapeutic machines when used in medical-relevant applications. This review aims at analyzing the state of the art of microrobots imaging by critically discussing the potentialities and limitations of the techniques employed in this field. Moreover, the physics and the working principle behind each analyzed imaging strategy, the spatiotemporal resolution, and the penetration depth are thoroughly discussed. The paper deals with the suitability of each imaging technique for tracking single or swarms of MRs and discusses the scenarios where contrast or imaging agent's inclusion is required, either to absorb, emit, or reflect a determined physical signal detected by an external system. Finally, the review highlights the existing challenges and perspective solutions which could be promising for future in vivo applications.

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“…To represent tissue like muscles, where the speed of sound is higher, glycerine is used. Figure 21 shows the experimental results for water and glycerine as well as the two coil positions, compared to the theoretical prediction of the pressure presented by Nagy et al (2009). The results are normalised to the pressure level at an applied current of 4A.…”

Section: Localisationmentioning

confidence: 99%

Assembling reconfigurable endoluminal surgical systems: opportunities and challenges

Nagy

Flückiger

Oung

et al. 2009

IJBBR

Self Cite

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The success of capsule endoscopy has promoted the development of the next generation of endoluminal surgical devices, and many research groups have proposed robotic capsules with novel functionalities, such as active locomotion and surgical intervention capabilities. Yet, these capsules are still single robotic units with a limited number of components and degrees of freedom. This paper addresses this inherent limitation of single capsule units by introducing the concept of modular robotics for surgical robotics. In the proposed procedure, the modules are ingested and assembled in the stomach cavity. We report on the key technologies of such a system: its self-assembly, actuation, power, and localisation.

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A wireless acoustic emitter for passive localization in liquids

Cited by 13 publications

References 14 publications

A Review of Localization Systems for Robotic Endoscopic Capsules

A Review of Localization Systems for Robotic Endoscopic Capsules

Medical Imaging of Microrobots: Toward In Vivo Applications

Assembling reconfigurable endoluminal surgical systems: opportunities and challenges

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