Efficacy Study of a Bioelectric Dressing Used With Negative Pressure Wound Therapy to Treat Diabetic and Pressure Ulcers

Inclusion Criteria: * Wound size greater than 1x1 cm * Wounds must be ≥5 cm away from all other wounds * Wound size must not be diminished in size greater than 10% between enrollment in study and the prescreening * Participant must be candidate for negative pressure wound therapy * Participant agrees to participate in follow-up evaluations * Participant must be able to read and understand informed consent, and sign the informed consent Exclusion Criteria: * Concurrent participation in another clinical trial that involves an investigational drug or device that would interfere with this study * Participant is to receive another topical agent (antimicrobials, enzymes, etc.) other than the study dressing (granufoam) * Participant is to receive Silver granufoam for their wound * Participant with sensitivity or adverse reactions to silver or zinc * Pregnancy or nursing an infant or child * Immunosuppression * Active or systemic infection * Participant undergoing active cancer chemotherapy * Chronic steroid use