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Bioresorbable Nasal Packing Products

  • NovaShield Bioresorbable Nasal Packing from Medtronic

NovaShield Injectable Nasal Packing and Nasal Stent

NovaShield Injectable Nasal Packing and Nasal Stent is a ready-to-use gel for FESS (functional endoscopic sinus surgery). Made from chitosan, it helps to control minimal bleeding, prevent adhesions, and provide a level of antibacterial effectiveness.*

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NovaShield Nasal Packing

NovaShield: Advanced Nasal Packing

Homogenized NovaShield gel

Homogenized NovaShield gel

NovaShield™ Injectable Nasal Packing and Nasal Stent is a ready-to-use gel for FESS, made from chitosan. It's pre-filled in a syringe with accordion cannula and flexible tip.

  • Controls minimal bleeding and oozing of the debrided mucosal surfaces via the tamponade effect and platelet aggregation, which helps aid hemostasis
  • Provides a level of antibacterial effectiveness as shown by in vitro testing*
Flexible accordion cannula tip 1

Flexible accordion cannula tip

  • Separates tissue and prevents adhesions by providing stenting of nasal structures, like turbinates, and serves as a space-occupying packing in post nasal and sinus surgery
  • Forms an antibacterial barrier when applied to the wound site

Convenient and Easy to Use

  • Ready to use after homogenization
  • Accordion cannula that assists with placement
  • Eliminated via hydrolysis or gentle irrigation in 7-14 days

Clinical Benefits of Chitosan

  • Resulted in rapid hemostasis immediately after FESS and fewer postoperative adhesions1,2
  • Promoted hemostasis in the setting of coagulopathy, independently of the availability of clotting factors and⁄or functional platelets3
  • Rapidly controlled intractable epistaxis that failed standard anterior–posterior packing, with a 95% success rate, including patients taking antiplatelet or anticoagulant medications4

Chitosan is a polymer chemical produced from chitin, a component of the hard external shell of shellfish (e.g., crab, lobster, and shrimp). Its hemostatic properties have been extensively studied in both civilian and military clinical settings.5-12

More Nasal Packing Products

We also offer bioresorbable MeroGel®, MeroGel Injectable, and MeroPak® products made from hyaluronic acid.

See our ENT Product Catalog for more nasal packing and FESS products, including traditional nasal packing.

*In vitro efficacy is not correlated to the clinical effectiveness.

References

1

Li L, Wang N, Jin X, et al. Biodegradable and injectable in situ cross-linking chitosan-hyaluronic acid-based hydrogels for postoperative adhesion prevention. Biomaterials. 2014; 35:3903-3917.

2

Aziz MA, Cabral JD, Brooks HJL, et al. In vitro biocompatibility and cellular interactions of a chitosan/dextran-based hydrogel for postsurgical adhesion prevention. J Biomed Mater Res. Part B 2014; 00B:000–000.

3

Kourelis K, Shikani AH. Effectiveness of chitosan-based packing in 35 patients with recalcitrant epistaxis in the context of coagulopathy. Clin Otolaryngol. 2012;37(4):309-313.

4

Shikani AH, Chahine KA, Alqudah MA. Endoscopically guided chitosan nasal packing for intractable epistaxis. Am J Rhinol Allergy. 2011;25(1):61-63.

5

Rao SB, Sharma CP. Use of chitosan as a biomaterial: studies on its safety and hemostatic potential. J Biomed Mater Res. 1997; 34:21-28.

6

Malette WG, Quigley H, Gaines RD, Johnson ND, Rainer G. Chitosan: a new hemostatic. Ann Thorac Surg. 1983; 36:55-58.

7

Chou TC, Fu E, Wu CJ, Yeh JH. Chitosan enhances platelet adhesion and aggregation. Biochem Biophys Res Commun. 2003; 302:480-483.

8

Dutkiewicz JK. Superabsorbent materials from shellfish waste–a review. J Biomed Mater Res. 2002; 63:373-381.

9

Brandenberg G, Leibrock LG, Shuman R, Malette WG, Quigley H. Chitosan: a new topical hemostatic agent for diffuse capillary bleeding in brain tissue. Neurosurgery. 1984; 15:9-13.

10

Hirano S, Zhang M, Nakagawa M, Miyata T. Wet spun chitosan-collagen fibers, their chemical N-modifications, and blood compatibility. Biomaterials. 2000; 21:997-1003.

11

Belman A, Daya M, Steve M, Worley J. From the battlefield to the street—experience of a suburban fire/EMS agency with chitosan dressing. 2006; Touch Briefings: Emergency Medicine & Critical Care Review.

12

Wedmore I, McManus JG, Pusateri AE, Holcomb JB. A special report on the chitosan-based hemostatic dressing: experience in current combat operations. J Trauma. 2006; 60:655-658.

Chitosan as a Biomaterial