Download Citation on ResearchGate | Easy-to-Swallow Wireless Telemetry | Many countries will experience the effects of an aging population, resulting in a. Download Citation on ResearchGate | Wireless Telemetry for Electronic Pill Antenna Design for Impulse Radio Based Wireless Capsule Endoscope Communication Systems. Article .. Easy-to-Swallow Wireless Telemetry. An important feature of the electronic pill technology is the wireless system utilized. This article reviews recent attempts in the design of the wireless telemetry.
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Easy-to-Swallow Antenna and Propagation – Easy-to-swlalow and of wireless telemetry units for electronic pill technology The electronic pill device is placed deeply inside the body, which makes the wireless communication interesting due to its surrounding environment.
Easy to Swallow Wireless Telemetry
An example of advanced hardware design for an electronic pill. Two different configurations of easy-to-swlalow Colpitts oscillator are shown in Figure 2. Despite their simplicity, early systems were bulky because of the physically large electronic components and batteries at the time, in addition to the targeting of several diagnostic measures such as temperature, pH, and pressure. Recent significant easy-to-ssallow improvements have enabled the design of smallsize cameras and batteries.
Moreover, wireless power can substantially reduce overall the device size and weight. The batteryless pills in  and  operate based on passive telemetry. It is quite obvious that future electronic pills will target higher-bandwidth data transmission that could facilitate a better diagnosis. Lower frequency unlicensed ISM bands, especially the This capsule easy-to-awallow in a similar fashion as current reflective Easy-to-swwallow technology. One approach to tackling this is to design wirelesss antenna for broadband matching, of which any shift in the 10 dB return loss bandwidth of the antenna is still within the operating frequency of the radio system.
Comparison of commercial electronic pills, www. Although the design of electronic pills has a long history, current designs show the technology is still in its infancy, mainly due to the small size requirement, which prevents designers from including complex design techniques. Thus, in order to provide good wireless communication performance, the receiver should be placed very close to the human body i. Introducing the additional 2 MHz within the band increases the number of channels in the band, enabling more patients to be monitored in a hospital setting.
These early attempts were based on low-frequency transmission and with simple structures. The design of wirelesw capsules began in the s. Due to the high data rate capacity e.
The design of swallowable radio transmitters for use in diagnosis of the digestive organ system first appeared in the literature in by two different groups almost simultaneously. Published on Nov View Download Chee Keong, and M. The lack of this feature should be resolved in future electronic pill developments. Therefore, the electronic pill should use a different transmission band or more sophisticated modulation protocol suitable for the environment for an interference free wireless system.
The external unit contains a second wireless link that will control the communication between the monitoring station and the electronic pill. A remote receiver can be connected directly to a workstation for monitoring, analyzing, and displaying images. As it is outside the body, the size and power consumption of the receiver is not critical.
Easy to Swallow Wireless Telemetry
They utilize a resonant circuit whose characteristic frequency is sensed from the outside. These early attempts were based on low-frequency transmission and with simple structures. A basic transmitter, using either Colpitts or Hartley oscillator topology connected to a sensor was used to send the signal from inside the body to external devices for tracking the physiological parameters of inner organs. The electronic pill system presented in  uses this technique for the transmitter.
These devices do not require a high data rate when compared to the video based pills highlighted in Table 1. The device operates at MHz, lower than most of the systems that are operating at UHF, but requiring a larger antenna that,in turn, will increase the physical size.
The electronic pill device is placed deeply wirelless the body, which makes the wireless communication interesting due to its surrounding environment. In the case of video imaging in modern electronic pills, digital data converted from image signals are applied to the input, as shown in Figure 2 .
The external unit acts as a gateway and transfers the received image data to the remote monitoring station wirelessly, using a high-speed wireless link. This is a very large bandwidth for a low-frequency transmission. Telemetry wireless capsule endoscope Technology. Figure 5 shows the basic building blocks of a potential electronic pill medical system for the future.
These improvements with high-frequency links are partially offset by higher path and tissue penetration loss. Development of novel biomedical technologies is an urgent necessity to improve diagnostic services eaey-to-swallow this demographic.
One way to enhance this operational lifetime is to charge the battery wirelessly. The power tekemetry circuit is usually a voltage regulator chip used to distribute the power source to the individual blocks.
This capsule operates in a similar fashion as curr Electronics pills with wireless power sources are generally smaller in size than a battery powered capsule, with the further advantage of the virtually unlimited device life provide. One way to enhance this operational lifetime is to charge the battery wirelessly.
In batteryless systems, it is necessary to bring the charging transmitter very close to b Figure 4.
Electrocardiogram ECG and temperature recording have been used for more than easj-to-swallow years in medical diagnosis to understand various biological activities , . As the feature size of integrated circuit technology is further reduced and functionality increased, future electronic pills designers will use these new technology and techniques, leading to completely self autonomous micro-robots that will contain sufficient functionality to go to designated areas within the patient.
This capsule uses image compressing techniques with an application specific integrated circuit ASIC to enable a higher wirelfss rate of images for low— data rate systems. The electronic pill includes a passive wireless link used for wake-up to reduce power consumption.
For example, the maximum bandwidth in the The receiver circuits for the transmitters given in Figure 2 are easily constructed from the radios available in commercial domain.