CLINICAL

Indications

 It is indicated “for the management of wounds including: partial and full-thickness wounds; pressure ulcers; venous ulcers; diabetic ulcers; chronic vascular ulcers; tunneled, undermined wounds; surgical wounds (donor sites/grafts, post-Mohs surgery, post-laser surgery, podiatric, wound dehiscence); trauma wounds (abrasions, lacerations, second-degree burns, and skin tears); draining wounds.

FDA

Cleared for marketing under the 510(k) process in July 2006 (K061711) and is intended for one-time use.” Oasis is included in FDA product code KGN (dressing, wound, collagen)

CONTRAINDICATIONS

This device is derived from a  porcine source and should not be used in patients with known  sensitivity to porcine material. This device is not indicated for  use in third degree burns.

PRECAUTIONS:

• Do not re-sterilize. Discard all open and unused portions  of OASIS® Wound Matrix.

• Device is sterile if the package is dry, unopened and  undamaged. Do not use if the package seal is broken.

• The device must be used prior to the expiration date.

• Discard device if mishandling has caused possible  damage or contamination.

• OASIS® Wound Matrix should not be applied until  excessive exudate, bleeding, acute swelling, and  infection is controlled.

POTENTIAL COMPLICATIONS:

The following complications  are possible. If any of these conditions occur, the device  should be removed.

• Infection

• Chronic inflammation (Initial application of wound  dressings may be associated with transient, mild,  localized inflammation.)

• Allergic reaction

• Excessive redness, pain, swelling, or blistering

STORAGE:

This device should be stored in a clean, dry  location at room temperature.

STERILIZATION:

This device has been sterilized with  ethylene oxide.

SUGGESTED INSTRUCTIONS FOR USING  OASIS® WOUND MATRIX

NOTE: Always handle OASIS® Wound Matrix using  aseptic technique.

I. Wound Bed Preparation

A. Prepare the wound bed using standard methods to  ensure it is free of exudate and devitalized tissue. An  initial excision or debridement of the wound may be  necessary to ensure the wound edges contain viable  tissue.

B. Wait for any bleeding to stop before applying OASIS®  Wound Matrix.

C. Cleanse the wound thoroughly with sterile saline.

II. Selection and Preparation of OASIS® Wound Matrix

A. Measure the wound and select the appropriate size  sheet of dry OASIS® Wound Matrix. If necessary, the  product may be additionally fenestrated or meshed  with a scalpel.

B. Cut the sheet to a size and shape that will cover the  entire wound surface and will extend slightly beyond  the wound margins.

III. Application of OASIS® Wound Matrix

A. For ease of handling, apply OASIS® Wound Matrix by  placing it in a dry state over the wound.

B. Position the dry OASIS® Wound Matrix to completely  contact the entire surface of the wound bed and  extend slightly beyond all wound margins. If multiple  sheets are necessary to cover the wound, slightly  overlap the edges of the sheets.

C. As required, securely anchor OASIS® Wound Matrix  with physician’s preferred fixation method (e.g.,  STERI-STRIPTM, tissue sealant, bolsters, dissolvable  clips, sutures, staples, or other appropriate fixation  method) based on the type of wound, location of  wound, patient’s mobility, and patient compliance.

D. Thoroughly rehydrate OASIS® Wound Matrix by  applying sterile saline.

E. To protect OASIS® Wound Matrix from adhering to the  secondary dressing, apply an appropriate nonadherent  primary wound dressing over the OASIS®  Wound Matrix.

F. Apply an appropriate secondary dressing (multi-layer  compression bandage system, total contact cast, or  other appropriate dressing) that will manage the  wound exudate, keep the OASIS® Wound Matrix  moist, and keep all layers securely in place.

IV. Dressing Changes

A. To prevent damage to the newly incorporating OASIS®  Wound Matrix, only change the primary dressing as  necessary, typically every 7 days.

B. Change the secondary dressing as appropriate. Take  care to avoid dislodging the OASIS® Wound Matrix  when the secondary dressing is changed.

V. Wound Assessment and Wound Bed Preparation for  Reapplication of OASIS® Wound Matrix

A. Change all dressings every 7 days, or as necessary.

NOTE: If a gel forms on the wound surface, do not  attempt to forcibly remove it. Successful absorption of  OASIS® Wound Matrix may form a caramel-colored or off white  gel. Do not remove this gel by debridement. This  caramelization contains extracellular matrix (ECM), which

continues to replace deficient and missing ECM in the  wound.

B. As healing occurs, sections of OASIS® Wound Matrix  may gradually peel. Carefully remove any remaining  loose products around the edge as needed.

C. Gently cleanse the wound surface with sterile saline;  leave the ECM gel intact.

D. Carefully reassess the wound and record healing  progression such as wound dimensions, wound depth,  wound type, and other relevant information.

VI. Reapplication of OASIS® Wound Matrix and Dressing  Changes

A. Change secondary dressings as needed (see step IV).

B. If the wound is free of infection and necrosis but not  fully epithelialized, reapply newly prepared OASIS®  Wound Matrix over previously absorbed application  (see steps II and III).

C. Reapply OASIS® Wound Matrix every 7 days or as  needed by repeating previous application steps.

NOTE: If excess exudate collects under the sheet,  small openings can be cut in the sheet to allow the  exudate to drain.

http://www.oasiswoundmatrix.com/sites/default/files/resources/oasis_owm_instructions_for_use.pdf

CODING, COVERAGE AND REIMBURSEMENT

This section currently focuses primarily on Medicare. It may be expanded in the future to include information on private insurers as well.