A flexible skin-mounted wireless acoustic device for bowel sounds monitoring and evaluation

Wang, Fengle; Wu, Dong; Jin, Peng; Zhang, Yingchao; Yang, Yamei; Ma, Yinji; Yang, Aiming; Fu, Ji; Feng, Xue

doi:10.1007/s11432-019-9906-1

Cited by 27 publications

(28 citation statements)

References 35 publications

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“…Bowel sounds are also important, for their clinical correlations with intestinal function. 173 Wang et al 174 have developed a flexible wearable wireless device for long-term and real-time monitoring of bowel sounds, which transmits the sound signal to the mobile handset through Bluetooth for waveform display as shown in Fig. 9c.…”

Section: Strain and Pressurementioning

confidence: 99%

Flexible inorganic bioelectronics

Chen¹,

et al. 2020

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Flexible inorganic bioelectronics represent a newly emerging and rapid developing research area. With its great power in enhancing the acquisition, management and utilization of health information, it is expected that these flexible and stretchable devices could underlie the new solutions to human health problems. Recent advances in this area including materials, devices, integrated systems and their biomedical applications indicate that through conformal and seamless contact with human body, the measurement becomes continuous and convenient with yields of higher quality data. This review covers recent progresses in flexible inorganic bio-electronics for human physiological parameters' monitoring in a wearable and continuous way. Strategies including materials, structures and device design are introduced with highlights toward the ability to solve remaining challenges in the measurement process. Advances in measuring bioelectrical signals, i.e., the electrophysiological signals (including EEG, ECoG, ECG, and EMG), biophysical signals (including body temperature, strain, pressure, and acoustic signals) and biochemical signals (including sweat, glucose, and interstitial fluid) have been summarized. In the end, given the application property of this topic, the future research directions are outlooked.

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Section: Strain and Pressurementioning

confidence: 99%

Flexible inorganic bioelectronics

Chen¹,

et al. 2020

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“…The working mechanism of eardrums can be exploited to noninvasively and quickly diagnose, evaluate, and continuously monitor diseases in the long term using acoustic and ultrasonic detecting devices. [ 132,146,147 ] For example, Wang et al [ 131 ] developed a flexible skin‐mounted device for the long‐term and real‐time monitoring and evaluation of bowel sounds based on a 3D‐printed elastomeric resonator integrated on a flexible skin‐mounted device (Figure 6i). Ultrasonic detecting technology is an outstanding noninvasive approach for the monitoring of the central blood pressure waveform from the jugular vein and carotid artery.…”

Section: Bio‐electronicsmentioning

confidence: 99%

“…The five delicate sensory systems described earlier (olfactory, visual, gustatory, auditory, and tactile devices) use five different types of signals (gas, light, chemical composition, sound, and mechanical signals). This section introduces the application of these delicate sensory systems for physical conditions, including breathing composition, [ 152,153 ] blood oxygen, [ 154 ] blood pressure, [ 155 ] blood glucose, [ 129 ] bowel sounds, [ 131 ] and pulse. [ 156 ]…”

Section: Bio‐physical Interactionmentioning

confidence: 99%

“…Bowel sounds, which can be aperiodic and random, are useful for the detection of intestinal diseases. Wang et al [ 131 ] developed a flexible circuit board integrated with a 3D‐printed elastomeric resonator (left panel of Figure 7f) that can continuously monitor intestinal sounds and wirelessly transmit the signals. The right panel of Figure 7f shows the same bowel sound signal measured with a traditional e‐stethoscope and this flexible device, which verifies the reliability of the flexible device.…”

Section: Bio‐physical Interactionmentioning

confidence: 99%

Section: Bio‐electronicsmentioning

confidence: 99%

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Skin‐Like Electronics for Perception and Interaction: Materials, Structural Designs, and Applications

Chen

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Advanced Intelligent Systems

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Recent advances in the material and structural design of skin-like electronics have enhanced the interactions between the virtual and physical worlds and between people and objects. Herein, the existing flexible sensing materials and microstructures, including flexible stimuli-responsive materials and response-and stretchability-enhanced microstructures, are reviewed. Five typical skin-like electronics with sensitivities analogous to the human senses (olfactory, visual, auditory, tactile, and gustatory senses) and their corresponding applications (gas, light, chemical composition, sound, and mechanical signal monitoring) are introduced. Finally, it is concluded with some perspectives on challenges and opportunities for future research in flexible hybrid electronics.

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Flexible Ultrasonic Patch for Accelerating Chronic Wound Healing

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Chen

et al. 2021

Adv Healthcare Materials

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Ultrasound treatment is an effective method for accelerating chronic wound healing. However, it is not widely used because traditional ultrasonic probes cannot be conformal to the wound surface, which leads to limitations of use and unstable treatment effects. In addition, the use of liquid coupling agent increases the chance of wound infection. A strategy is proposed to design and fabricate a flexible ultrasonic patch for treating chronic wounds effectively. The piezoelectric ceramic in the patch is discretized into several linearly arranged units, which are integrated on a flexible circuit substrate. A thin hydrogel patch is used as both encapsulation and coupling layer to avoid wound infection and ensure the penetration of ultrasound. The ultrasonic patch is soft, light, and can completely conform to the treatment area. Bending of the patch focuses the sound beams on the center of the bending circle, which achieves control of the target treatment area. Ultrasound treatment experiments are carried out on some type‐II diabetic rats. Immunohistochemical (IHC) results indicate that ultrasound accelerates wound healing by activating Rac1 in both dermal and epidermal layers. Treatment results show that wound treated with the ultrasound heals faster than wounds without. The healing time is shortened by ≈40%.

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A flexible skin-mounted wireless acoustic device for bowel sounds monitoring and evaluation

Cited by 27 publications

References 35 publications

Flexible inorganic bioelectronics

Flexible inorganic bioelectronics

Skin‐Like Electronics for Perception and Interaction: Materials, Structural Designs, and Applications

Flexible Ultrasonic Patch for Accelerating Chronic Wound Healing

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