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Wound Healing System Development

Wound Healing System Development. Group 27 Cary Berdy Marybeth Jewell Melissa Kopacz Ian Sando Advisor: Dr. Naji Abumrad. Current Healing Technique. Vacuum Assisted Closure (V.A.C.) Therapy Promote granulation tissue formation through the promotion of wound healing.

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Wound Healing System Development

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  1. Wound Healing System Development Group 27 Cary Berdy Marybeth Jewell Melissa Kopacz Ian Sando Advisor: Dr. Naji Abumrad

  2. Current Healing Technique • Vacuum Assisted Closure (V.A.C.) Therapy • Promote granulation tissue formation through the promotion of wound healing. • Uniformly draw wounds closed by applying controlled, localized negative
pressure. • Remove interstitial fluid allowing tissue decompression. • Remove infectious materials. • Provide a closed, moist wound healing environment. • Treats Chronic open wounds, Diabetic ulcers, Pressure ulcers, Acute and traumatic wounds, Flaps and grafts, Dehisced Wounds, and Partial Thickness Burn

  3. Standard V.A.C. Operating Procedure 1. 2. Foam altered in accordance with specific wound characteristics. Foam is placed over or in wound. Catheter tubing is positioned within the foam dressing. 3. 4. Adhesive drape is placed over the foam-filled wound and negative pressure is applied. Dressing is changed every 48 hours. Catheter tubing is connected to the KCI device. Sterile canister for exudate collection is positioned.

  4. Disadvantages of Current Devices • Expensive • Daily costs of V.A.C. exceeds traditional dressing costs. $282/day versus $75/day • Patents in U.S. and select international countries provides monopoly on V.A.C devices (KCI’s base V.A.C. patents do not expire until 2013. They not only have over 100 V.A.C.- related patents in the U.S. but, internationally, they have more than 75 issued patents and more than 100 pending patents, with protection in Europe, Canada, Australia, and Japan.) • Limited Multiple Wound Capabilities • Current device cannot provide differing pressures to multiple wounds. • Multiple machines result in elevated cost for patient/hospital.

  5. New Design Goals • Catheter branching and/or multiple variable pressure outlets on a single device (-25 mmHg to -200 mmHg) • Decrease cost of device components/manufacture • Gain patent in international free markets • Battery operated

  6. Prototype I • 1 3/8” Crimp Tee: $2.57 • 2 Case Enclosures: $12.00 • 1 Roll Electrical Tape: $0.79 • 8 ft. Vinyl Tubing: $1.60 • 4 1/2” x 3/8” Brass Coupling: $6.12 • 2 ½” Barb Ball Valve: $16.82 • 1 800 cc Suction Canister: $15.30 • 1 21.3” Hg Single-Head Vacuum Pump: $194 • Total: $249.20 • Removing 500 cc of Exudate: Priceless

  7. Prototype II • Design for even cheaper • Weights added to end of PVC hook to vary negative pressure • O-ring slides back and forth to allow for air escape and suction • Manual, but better than the J-drain

  8. Future Work • Observe current device in clinical setting • Get exact date of patent expiration • Cost of device from sales rep • Improve Prototype I: • - Battery operated • - Pressure Gauge

  9. References • http://www.kci1.com/products/vac/vac/index.asp • http://64.233.167.104/search?q=cache:GuzsoyZXpbQJ:www.health.gov.on.ca/english/providers/program/mas/reviews/docs/recommend_vac_121604.pdf+V.A.C.+Therapy+costs&hl=en • http://64.233.167.104/search?q=cache:STFs2zx-PvUJ:www.plasticsurgery.org/PSF/PSFHOME/educate/abstracts/Wednesday/B/1057-1103.htm+V.A.C.+Therapy+costs&hl=en • http://www.nursing.uiowa.edu/sites/chronicwound/index.htm

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