Obsidian® RFT

regenerative fistula treatment

Obsidian® RFT

Obsidian® RFT is an autologous, platelet rich bioactive matrix for regenerative treatment of fistulas providing a sphincter-sparing minimally invasive procedure. Obsidian® RFT can close and heal fistulas and can be co-delivered with antibiotics embedded in Obsidian® RFT.1-3

Common techniques in fistula surgery can be performed in combination with Obsidian® RFT.4

Obsidian® RFT is an autologous, platelet rich bioactive matrix with prolonged release of non-activated platelets which, upon contact with tissue, release growth factors over a period of 5-7 days improving tissue regeneration and healing of fistulas. The special fistula brush included in the Obsidian® RFT set makes it easy to prepare the fistula tract prior to application. Filling the fistula tract with Obsidian® RFT accelerates tissue proliferation to support healing and through the anti-inflammatory and antimicrobial platelet properties it may offer control of potential contamination. Obsidian® RFT is completely absorbable. With the use of the Vivostat® Co-Delivery system, Obsidian® RFT can be co-applied with antibiotics, embedded in the platelet rich bioactive matrix.

benefits of obsidian® rft

Obsidian® RFT surgical procedure

  1. Expose the fistula tract(s)
  2. Insert fistula brush. Clean and debride fistula tract(s) with a back-and-forth motion (x20) removing non-vascularized tissue
  3. Flush fistula tract(s) with saline solution (37°C)
  4. Repeat debridement and rinsing cycle (steps 2 and 3) as needed.
    Important: Thoroughly clean the fistula brush between debridements.
  5. Apply a Z-suture or optionally a mucosal flap
  6. Perform Cava Test to check the rigidity and resistance of the internal os suture.

Procedure:

  1. Apply a Z-suture
  2. Tighten the suture without completely closing it
  3. Irrigate the area by applying a saline solution from the outer os with proper pressure
  4. Make sure no fluid leaks from the inner os and the suture is tight enough
  5. Loosen Z-suture and insert applicator device to apply Obsidian® RFT (see PART 2).
  1. Insert the Obsidian® RFT endoscopic catheter from the distal outer opening of the fistula to the intraluminal proximal inner fistula ostium
  2. Apply Obsidian® RFT constantly while slowly retracting the catheter using the application setting “Jet No Air”. Optionally, a second substance of 1-5 ml can be co-delivered with Obsidian® RFT (e.g. antibiotics).
  3. Close the inner fistula opening via suture or via mucosa flap
  4. Optionally inject the remaining Obsidian® RFT around the inner ostium of the fistula
  5. The external fistula ostium remains open
  6. Cover with non-adherent wound dressing
  Treatment with Obsidian® RFT may be repeated for complete healing of fistula(s)
Obsidian® RFT is an autologous, platelet rich bioactive matrix with prolonged release of non-activated platelets which, upon contact with tissue, release growth factors over a period of 5-7 days improving tissue regeneration and healing of fistulas. The special fistula brush included in the Obsidian® RFT set makes it easy to prepare the fistula tract prior to application. Filling the fistula tract with Obsidian® RFT accelerates tissue proliferation to support healing and through the anti-inflammatory and antimicrobial platelet properties it may offer control of potential contamination. Obsidian® RFT is completely absorbable. With the use of the Vivostat® Co-Delivery system, Obsidian® RFT can be co-applied with antibiotics, embedded in the platelet rich bioactive matrix.
Treatment with Obsidian® RFT may be repeated for complete healing of fistula(s)

Obsidian® RFT for anal fistula treatment:

Extrasphincteric, suprasphincteric, transsphincteric and intersphincteric fistulas.

Special fistula brush included in the Obsidian® RFT Set from Vivostat

Special fistula brush included in the Obsidian® RFT Set

Perianal fistular can be treated with Obsidian RFT from Vivostat
Play Video

obsidian® RFT

Click on the video and see perianal fistula treated with Vivostat® PRF – Obsidian® RFT are even better suited for perianal fistulas and comes with a fistular brush included in the set.

PRODUCT order codes obsidian® rft

Application devices

The Vivostat® System offers a variety of different disposable application devic­es as well as a number of reusable handles.

General surgery

The ability to use the Vivostat® Endoscopic Applicator in general surgery has proven very useful.

  1. Lara, F. J. P., Serrano, A. M., Moreno, J., Carmona, J. H., Márquez, M., Perez, L., Del Rey Moreno, A., & Muñoz, H. O. (2014). Platelet-rich fibrin sealant as a treatment for complex perianal fistulas: a multicentre study. Journal of Gastrointestinal Surgery, 19(2), 360–368. https://doi.org/10.1007/s11605-014-2698-7
  2. Lara, F. J. P., Serrano, A. M., Moreno, J., Carmona, J. H., Márquez, M., Perez, L., Del Rey Moreno, A., & Muñoz, H. O. (2014). Platelet-rich fibrin sealant as a treatment for complex perianal fistulas: a multicentre study. Journal of Gastrointestinal Surgery, 19(2), 360–368. https://doi.org/10.1007/s11605-014-2698-7 
  3.  Moreno-Serrano, A., García-Díaz, J. J., Ferrer-Márquez, M., Alarcón, R., Álvarez-García, A., & Reina-Duarte, Á.  (2016), Using autologous platelet-rich plasma for the treatment of complex fistulas, Revista Espanola de Enfermedades Digestivas, 108(3), 123-8, https://doi.org/10.17235/reed.2016.3946/2015
  4. Lara, F. J. P., González, J. M. S., Arjona, T. P., Donoso, F., & Fernández, J. D. (2022), A new, conservative treatment for perianal fistula that may halve the need for surgical intervention – case series, Surgical Innovation, 29(1), 50–55,  https://doi.org/10.1177/15533506211015196
  5. García-Olmo, D., Gómez-Barrera, M., & De La Portilla, F. (2023). Surgical management of complex perianal fistula revisited in a systematic review: a critical view of available scientific evidence. BMC Surgery, 23(1). https://doi.org/10.1186/s12893-023-01912-z