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Sinus stent and system and method of deploying stent within sinus of patient

A frontal sinus cavity and body part technology, applied in stents, devices for human tubular structures, medical science, etc., can solve the problems of reducing restenosis rate, lack of frontal sinus patency and mucosal recovery, etc.

Pending Publication Date: 2021-11-19
STRYKER EUROPEAN OPERATIONS LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it is known that long-term stenting within a few months after FESS significantly reduces restenosis rates
However, there is a lack of adequate commercially available products that promote frontal sinus patency and mucosal restoration

Method used

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  • Sinus stent and system and method of deploying stent within sinus of patient
  • Sinus stent and system and method of deploying stent within sinus of patient
  • Sinus stent and system and method of deploying stent within sinus of patient

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Figure 1-3 The frontal sinus (FS) for deploying the stent 32 to the patient is shown (see Figure 17 ) in the system 30. System 30 addresses the difficult visualization and anatomically complex challenges often associated with frontal sinus surgery. System 30 may be particularly suited for functional endoscopic (nasal) sinus surgery (FESS), a minimally invasive surgical technique that opens sinus air cells and sinus ostia with direct visualization. In one example, stent 32 is deployed in the frontal sinus after FESS to reduce, minimize and / or eliminate restenosis of the frontal sinus opening (FSO) (i.e., ostium), which is associated with chronic (rhino)sinusitis (CRS ) related to one of the main postoperative indicators of long-term outcome. System 30 can also be used to treat conditions such as inflammation, mucosal swelling, polyposis, and adhesions, thereby reducing recurrence of symptoms and / or the need for further surgical intervention. In addition, in a manne...

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PUM

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Abstract

The present invention relates to systems and methods for deploying a stent within the frontal sinus. The stent includes flexible foam and film layers arranged in a stacked configuration and furled within a cartridge prior to deployment. The cartridge is removably coupled to an applicator device including an actuator. The film layer may include a polymer having a resilience sufficient to unfurl the stent and maintain patency of the frontal sinus opening. The flexible foam layer may have porosity of greater than 80%, and an active agent may be within the flexible foam layer. The flexible foam layer may be bioresorbable, and the flexible film layer biocompatible and non-biodegradable. The stent may include first and second body portions with the first body portion independently unfurling from the second body portion to retain the stent within the frontal sinus. The contouring of the first and second body portions may facilitate ease with removal of the stent.

Description

[0001] priority application [0002] This application claims priority to and all benefit of U.S. Provisional Patent Application No. 62 / 834,628, filed April 16, 2019, which is hereby incorporated by reference in its entirety. Background technique [0003] Chronic (rhino)sinusitis (CRS) is one of the most common healthcare problems in the United States. When sinusitis occurs, the mucociliary clearance mechanisms work less efficiently, preventing the normal flow of mucus. The mucous membrane of the sinus becomes congested, causing the mouth to close. The poor ventilation and mucus build-up then creates the conditions needed for bacterial infection. [0004] Currently, the medical management of CRS covers a wide range of treatment modalities, including oral antibiotics and corticosteroids, saline irrigation, immunomodulators, etc., but these approaches are often ineffective. For example, the amount of active agent that reaches the target sinus tissue from a nasal spray is very ...

Claims

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Application Information

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IPC IPC(8): A61F2/92A61F2/18
CPCA61F2/04A61F2/186A61F2/92A61F2/966A61F2/9522A61L31/06A61L31/16A61F2250/0068A61F2002/0081A61F2230/008A61F2250/0067
Inventor J·J·雅各布斯P·卡申
Owner STRYKER EUROPEAN OPERATIONS LIMITED
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