Abstract: Provided is a low-cost robust antenna that may be discreetly integrated into an article of clothing so that it may be suitable for comfortable use with that article of clothing. The antenna is fabricated from off-the-shelf materials, some of which are commonly available at retail outlets. It may provide the same wear as a good quality piece of clothing. It also reduces electromagnetic coupling with the wearer's body, reduces apparel weight and bulk, and increases performance when compared to comparable existing systems. The frequency response, gain, or size and shape of the antenna are adjustable, within reason, to user requirements.

Abstract: A needle guide having a semi-compliant shell design and locating means for attachment to an ultrasound transducer. The needle guide improves over the prior art in its reduced complexity, its low-profile formed fit to the transducer, a positive guide locking feature when the needle holding pin is in the closed position, and its ease of attachment over a sterile cover. The improved design is conducive to low-cost manufacturing methods which employ materials that can be autoclaved, gas-sterilized, or liquid disinfected.