3D Origami Sensing Robots for Cooperative Healthcare Monitoring

Kim, Tae-Ho; Vanloo, Jaydon; Kim, Woo Soo

doi:10.1002/admt.202000938

Cited by 29 publications

(34 citation statements)

References 47 publications

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“…For the optimized conformal contact of origami for the development of the ECG sensing unit, the LIO is parametrically studied with tunable factors. The auxetic part of the LIO is composed of a three-layered Kresling origami structure 27 . Detailed information about the Kresling origami is described in Supplementary Note 1 Fig.…”

Section: Resultsmentioning

confidence: 99%

“…3a, the mechanical properties of the structure are adaptable. In this parametric study, we compared the responses of three different parameters at different angles: (1) Poisson's ratio, (2) rotation angle, and (3) elastic modulus of the origami structures 26,27 .…”

Section: Resultsmentioning

confidence: 99%

“…For example, the mechanical rigidity of the structure is tunable by the customization of folding patterns on the structure. In addition, origami has force direction-shifting properties such as rotating 26 or bending 27 using a simple axial force. Moreover, the physical dynamics of origami mainly occur on the crease line such that the patterned planes or facets are scarcely affected, which can be utilized as potential location sites of sensing units 28 .…”

Section: Introductionmentioning

confidence: 99%

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3D printed leech-inspired origami dry electrodes for electrophysiology sensing robots

et al. 2022

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In this study, based on inspiration drawn from origami and the suction mechanism of leeches, a dry electrode is developed for reliable blood pressure (BP) monitoring. The leech-inspired suction mechanism generated a local soft vacuum facilitating appropriate contact with the human skin. Subsequently, an electrocardiogram (ECG) sensor, termed a leech-inspired origami (LIO) sensor, was constructed using the developed dry electrode. The LIO with a sensing robot system ensures reliable ECG signals with a signal-to-noise ratio of 21.7 ± 0.56 dB. From the paired detection of ECG and photoplethysmography (PPG) through human–robot interaction, BP monitoring was demonstrated. The average difference of the systolic BP between that estimated by the sensing robot and that monitored by the sphygmomanometer was 0.03 mmHg, indicating the reliable BP monitoring ability of the sensing robot. The LIO sensing system inspired by origami and leech behaviors makes BP sensing tools feasible, which in turn would further the development of a remote healthcare monitoring robotic system.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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3D printed leech-inspired origami dry electrodes for electrophysiology sensing robots

et al. 2022

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“…For example, Kim et al developed 3D origami soft sensing robots using FDM composed of nanocomposite filaments of cellulose nanofiber, PLA, and TPU, as shown in Figure 8 . These devices could detect electromyography signals for health monitoring [ 143 ]. Tognato et al created a method to tune the anisotropy of robotic actuation by adding magnetic responsive iron oxide nanoparticles (IOPs) to a PEG matrix suitable for AM.…”

Section: Applicationsmentioning

confidence: 99%

Recent Trends and Innovation in Additive Manufacturing of Soft Functional Materials

et al. 2021

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The growing demand for wearable devices, soft robotics, and tissue engineering in recent years has led to an increased effort in the field of soft materials. With the advent of personalized devices, the one-shape-fits-all manufacturing methods may soon no longer be the standard for the rapidly increasing market of soft devices. Recent findings have pushed technology and materials in the area of additive manufacturing (AM) as an alternative fabrication method for soft functional devices, taking geometrical designs and functionality to greater heights. For this reason, this review aims to highlights recent development and advances in AM processable soft materials with self-healing, shape memory, electronic, chromic or any combination of these functional properties. Furthermore, the influence of AM on the mechanical and physical properties on the functionality of these materials is expanded upon. Additionally, advances in soft devices in the fields of soft robotics, biomaterials, sensors, energy harvesters, and optoelectronics are discussed. Lastly, current challenges in AM for soft functional materials and future trends are discussed.

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“…The desired properties of mechanical metamaterials can be achieved by exploring the ample design space offered by the geometrical parameters of their structure 20 . Different structures are used in realisation of soft sensing systems such as auxetic structure for stretchable strain sensor 21 , lattice-based structure for pressure sensing 22 , or origami-based structure for electromyography signal detection 23 .…”

Section: Introductionmentioning

confidence: 99%

Flexible mechanical metamaterials enabling soft tactile sensors with multiple sensitivities at multiple force sensing ranges

Mohammadi

Tan

Choong

et al. 2021

Sci Rep

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The majority of existing tactile sensors are designed to measure a particular range of force with a fixed sensitivity. However, some applications require tactile sensors with multiple task-relevant sensitivities at multiple ranges of force sensing. Inspired by the human tactile sensing capability, this paper proposes a novel soft tactile sensor based on mechanical metamaterials which exhibits multiple sensitivity regimes due to the step-by-step locking behaviour of its heterogenous multi-layered structure. By tuning the geometrical design parameters of the collapsible layers, each layer experiences locking behaviour under different ranges of force which provides different sensitivity of the sensor at different force magnitude. The integration of a magnetic-based transduction method with the proposed structure results in high design degrees of freedom for realising the desired contact force sensitivities and corresponding force sensing ranges. A systematic design procedure is proposed to select appropriate design parameters to produce the desired characteristics. Two example designs of the sensor structure were fabricated using widely available benchtop 3D printers and tested for their performance. The results showed the capability of the sensor in providing the desired characteristics in terms of sensitivity and force range and being realised in different shapes, sizes and number of layers in a single structure. The proposed multi-sensitivity soft tactile sensor has a great potential to be used in a wide variety of applications where different sensitivities of force measurement is required at different ranges of force magnitudes, from robotic manipulation and human–machine interaction to biomedical engineering and health-monitoring.

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3D Origami Sensing Robots for Cooperative Healthcare Monitoring

Cited by 29 publications

References 47 publications

3D printed leech-inspired origami dry electrodes for electrophysiology sensing robots

3D printed leech-inspired origami dry electrodes for electrophysiology sensing robots

Recent Trends and Innovation in Additive Manufacturing of Soft Functional Materials

Flexible mechanical metamaterials enabling soft tactile sensors with multiple sensitivities at multiple force sensing ranges

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