Patent Grant
9597220
The present disclosure relates generally to devices, systems and methods for correcting a nasal valve collapse and/or stabilizing lateral nasal cartilage.
Nasal valve collapse is a frequent and sufficient cause of nasal airway obstruction, characterized by a loss of support from lateral nasal cartilages typically observed following rhinoplasty, nasal trauma or in aged patients. Properly functioning nasal cartilage acts to keep the nasal passages open. If the lateral cartilages become weak, they collapse inward when a person inhales due to the negative pressure from the flow of air. This problem is currently largely untreated due to the complexity and highly variable results associated with current repair techniques, combined with the fact that a majority of patients are elderly or have a history of nasal surgery. These complex surgical procedures have been developed to correct valve collapse by reinforcing the lateral cartilages so adequate support can permit valve opening and thus eliminate the nasal airway obstruction.
However, many of these procedures require surgically opening the nose to replace structurally insufficient tissue with either synthetic or autologous tissue grafts. Results of these procedures have been highly variable and drawbacks include the lack of sufficient autologous grafting tissue, significant infection and extrusion of synthetic grafts, the potential for altering facial aesthetics and possible confounding effects on other nasal functionality. Another method for repairing nasal valve collapse, developed by Friedman et al., involves a bone-anchor suspension technique whereby a suture is anchored to the orbital rim and placed subcutaneously so as to loop through the upper lateral cartilage. Instead of imparting structural integrity to the collapsed cartilage, it applies tensile forces through this suture to prevent further collapse. Although the procedure has shown some promise, very few surgeons perform the technique because of the technical difficulties and potential complications. Complications occur because patients develop granulomas due to suture proximity to the nasal mucosa, which eventually necessitates implant removal.
Overall, nasal valve collapse is an oftentimes untreated problem due to inconsistent results from a myriad of very complex procedures performed by very few surgeons. As such, there remains a need for an endoscopic method to repair nasal valve in a simple, consistent manner.
Exemplary embodiments of the present disclosure comprise a device configured for suspending a nasal valve. In certain embodiments, the device comprises a body portion comprising a proximal end, a distal end, and a plurality of barbs. The body portion can be configured to be inserted through or underneath the upper lateral cartilage of a patient and the plurality of barbs configured to engage the soft tissue overlying bony tissue proximal to the upper lateral cartilage. Certain embodiments may comprise a head portion coupled to the proximal end of the body portion, where the head portion is configured to engage the upper lateral cartilage of the patient when the plurality of barbs are engaged with the soft tissue overlying bony tissue proximal to the upper lateral cartilage.
In certain embodiments, the head portion is coupled to the body portion to form a “T” shape, while in other embodiments the head portion is coupled to the body portion to form an “L” shape or a hook shape. The plurality of barbs can be distributed along one side of the body portion and may be directed toward the proximal end of the body portion. In specific embodiments, the body portion and head portion are separated by an angle of between 90 and 120 degrees, more specifically between 95 and 115 degrees, and more specifically still between 100 and 110 degrees. In certain other embodiments, the body portion and head portion are separated by an angle of between 60 and 20 degrees, more specifically between 55 and 25 degrees, and more specifically still between 50 and 30 degrees.
Other embodiments comprise a method of stabilizing the upper lateral cartilage of a patient. The method may comprise: creating an aperture in the mucosa of the patient; inserting a device with a body portion and a head portion into the aperture, where the body portion of the device is inserted into the aperture prior to the head portion; advancing the device into the aperture so that the head portion engages the upper lateral cartilage of the patient; and engaging the plurality of barbs into soft tissue overlying the bony tissue proximal to the upper lateral cartilage. Specific embodiments may include engaging the plurality of barbs into soft tissue overlying the bony tissue lateral to the upper lateral cartilage, including, for example, the maxilla of the patient.
In certain embodiments, the body portion of the device pierces the upper lateral cartilage of the patient, and in other embodiments the body portion of the device is inserted between the upper lateral cartilage of the patient and bony tissue proximal to the upper lateral cartilage. In specific embodiments, the device is inserted into the aperture using a guiding needle sheath.
In certain embodiments, engaging the plurality of barbs into the soft tissue overlying the bony tissue proximal to the upper lateral cartilage of the patient comprises pressing down on an epidermal tissue proximal to the device. In specific embodiments, the soft tissue overlying the bony tissue is part of the orbital bone, while in other embodiments, the bony tissue is part of the nasal bone.
Referring initially to the exemplary embodiment shown in
In exemplary embodiments, intranasal endoscopic placement of NVSD 100 may be employed to allow NVSD 100 to support the nasal cartilage and prevent collapse of the nasal valve. In certain embodiments NVSD 100 may comprise a non-bioabsorbable material. In other embodiments, NVSD 100 may comprise a bioabsorbable material. Based on the material used to construct NVSD 100, the device can provide structural support while new tissue attachments are formed, and NVSD 100 may remain or degrade over time.
Referring now to
When the desired amount of tension has been exerted on the upper lateral cartilage, the surgeon can press down on the epidermis above NVSD 100 so that barbs 130 engage the periosteum of the bone tissue lying lateral to the upper lateral cartilage (e.g., the orbital bone). When the surgeon releases the pressure exerted on NVSD 100, barbs 130 will remain engaged with the periosteum and will maintain the position of NVSD 100. Head portion 110 of NVSD 100 will continue to maintain a force exerted on the upper lateral cartilage and will stabilize the lateral cartilage (e.g., restrict the upper lateral cartilage from deflecting inwards) when the patient inhales.
Other embodiments of an NVSD may comprise a different configuration from that shown in
As shown in
Referring now to
Referring now to
As shown in
When the surgeon releases the pressure exerted on NVSD 300, barbs 330 will remain engaged with the periosteum and will maintain the position of NVSD 300. Head portion 310 of NVSD 300 will continue to maintain a force exerted on upper lateral cartilage 501 and will restrict upper lateral cartilage 501 from deflecting inwards when the patient inhales. Angle 315 between head portion 310 and body portion 320 is configured so that head portion 310 maintains a sufficient force on upper lateral cartilage 501 to restrict deflection during inhalation.
As demonstrated in the above-described devices and methods, exemplary embodiments of this disclosure can be implemented to support nasal cartilage and keep the nasal passages open, particularly during inhalation. Exemplary embodiments utilize barbs that engage the periosteum of bone tissue proximal to the nasal cartilage and serve to maintain the device in the desired position. Exemplary devices also comprise a portion that engages the nasal cartilage and exerts a force against it that resists the collapse of the cartilage.
While an exemplary embodiment is described herein, it will be understood that various modifications to the method and apparatus can be made without departing from the scope of the present invention. For example, the positions of the control mechanisms may be varied from those illustrated. Furthermore, the sequential recitation of steps in any claim is not a requirement that the steps be performed in any particular order, unless otherwise so stated.
The foregoing has been a description of certain non-limiting preferred embodiments of the invention. Those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific embodiments of the invention described herein. Those of ordinary skill in the art will appreciate that various changes and modifications to this description may be made without departing from the spirit or scope of the present invention, as defined in the following claims. For example, the positions of the control mechanisms may be varied from those illustrated.
In the claims articles such as “a”, “an”, and “the” may mean one or more than one unless indicated to the contrary or otherwise evident from the context. Claims or descriptions that include “or” between one or more members of a group are considered satisfied if one, more than one, or all of the group members are present in, employed in, or otherwise relevant to a given product or process unless indicated to the contrary or otherwise evident from the context. The invention includes embodiments in which exactly one member of the group is present in, employed in, or otherwise relevant to a given product or process. The invention also includes embodiments in which more than one, or all of the group members are present in, employed in, or otherwise relevant to a given product or process. Furthermore, it is to be understood that embodiments of the invention encompasses all variations, combinations, and permutations in which one or more limitations, elements, clauses, descriptive terms, etc., from one or more of the claims or from relevant portions of the description is introduced into another claim. For example, any claim that is dependent on another claim can be modified to include one or more limitations found in any other claim that is dependent on the same base claim. Furthermore, where the claims recite a composition, it is to be understood that methods of using the composition for any of the purposes disclosed herein are included, and methods of making the composition according to any of the methods of making disclosed herein or other methods known in the art are included, unless otherwise indicated or unless it would be evident to one of ordinary skill in the art that a contradiction or inconsistency would arise. In addition, embodiments of the invention encompasses compositions made according to any of the methods for preparing compositions disclosed herein.
Where elements are presented as lists, e.g., in Markush group format, it is to be understood that each subgroup of the elements is also disclosed, and any element(s) can be removed from the group. It is also noted that the term “comprising” is intended to be open and permits the inclusion of additional elements or steps. It should be understood that, in general, where the invention, or aspects of the invention, is/are referred to as comprising particular elements, features, steps, etc., certain embodiments of the invention or aspects of the invention consist, or consist essentially of, such elements, features, steps, etc. For purposes of simplicity those embodiments have not been specifically set forth in haec verba herein. Thus for each embodiment of the invention that comprises one or more elements, features, steps, etc., the invention also provides embodiments that consist or consist essentially of those elements, features, steps, etc.
Where ranges are given, endpoints are included. Furthermore, it is to be understood that unless otherwise indicated or otherwise evident from the context and/or the understanding of one of ordinary skill in the art, values that are expressed as ranges can assume any specific value within the stated ranges in different embodiments of the invention, to the tenth of the unit of the lower limit of the range, unless the context clearly dictates otherwise. It is also to be understood that unless otherwise indicated or otherwise evident from the context and/or the understanding of one of ordinary skill in the art, values expressed as ranges can assume any subrange within the given range, wherein the endpoints of the subrange are expressed to the same degree of accuracy as the tenth of the unit of the lower limit of the range.
In addition, it is to be understood that any particular embodiment of the present invention may be explicitly excluded from any one or more of the claims. Any embodiment, element, feature, application, or aspect of the compositions and/or methods of the invention can be excluded from any one or more claims. For purposes of brevity, all of the embodiments in which one or more elements, features, purposes, or aspects is excluded are not set forth explicitly herein.
The following references are herein incorporated by reference:
This application claims priority to U.S. Provisional Patent Application Ser. No. 61/116,112, filed Nov. 19, 2008, entitled “Apparatus and Methods for Correcting Nasal Valve Collapse”, the entire disclosure of which is specifically incorporated herein by reference.
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| PCT/US2009/064689 | 11/17/2009 | WO | 00 | 6/17/2011 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2010/059586 | 5/27/2010 | WO | A |
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