Ultrasound device

I'm looking for someone experienced with developing an ultrasound device to help me with a project. The intended use of the device is for medical diagnostics, and I need it to be a portable device with a target budget of under $500. I'm looking for features such as high-resolution imaging and color Doppler imaging to be included. If you think you have the skills to create a quality ultrasound device that meets my needs, please submit your proposal. Thank you.
PREFER SOME BASED IN CHENNAI , INDIA