This invention relates to medicine, more specifically to otorhinolaryngology, and may be used to provide conservative treatment of nose and paranasal sinuses diseases requiring pathological secretion to be evacuated from the paranasal sinuses and/or to administer pharmaceutical solutions into the paranasal sinuses for diagnostic or treatment purposes and to staunch nasal bleeding resulting from a treatment procedure.

One known device for the conservative treatment of nose and paranasal sinuses diseases comprises obturators for the anterior and posterior nasal apertures, each configured as an expandable shell made of elastic material and provided with a feed tube whose distal end is in communication with a cavity under the shell and whose proximal end is provided with an adapter having a valve mechanism; the posterior nose opening obturator shell is tightly fixed at the distal section of its feed tube, and the anterior nose opening obturator shell is tightly fixed onto the sleeve, the sleeve having two channels one of which houses the posterior nose opening obturator feed tube such that the sleeve is movable throughout the feed tube length, and the other channel houses a catheter used to evacuate pathological secretion from the paranasal sinuses and/or to administer pharmaceutical solutions into the paranasal sinuses for diagnostic or treatment purposes (see EP 2977014 published on Jan. 27, 2016). One potential issue with the known invention may be the blocking of the catheter drainage port by the nasal mucosal edema of the inferior turbinate caused by inflammation, thus making it difficult to properly evacuate pathological secretion from the paranasal sinuses and to evenly distribute a pharmaceutical solution in the sinuses which greatly diminishes the efficacy of the procedure. Said factors are attributed to the fact that a catheter cannot be inserted deep enough to reach the middle and superior nasal meatuses, i.e. directly to the area of the natural ostia of the paranasal sinuses which enables a catheter to function as appropriate. Furthermore, nasal bleeding out of the blood vessels providing blood supply of the nasal mucosa may be caused in the nasal cavity by intermittent pressure during a treatment procedure. The known invention does not allow such bleeding to be staunched.

The closest analog of the proposed device is a device designed for the conservative treatment of nose and paranasal sinuses diseases, comprising anterior and the posterior nose opening obturators, each of which is configured as an expandable shell made of elastic material and provided with a feed tube whose distal end is in communication with a cavity under the shell and whose proximal end is provided with an adapter having a valve mechanism, the posterior nose opening obturator shell being tightly fixed at the distal section of its feed tube, and the anterior nose opening obturator shell is tightly fixed onto the sleeve, the sleeve having two channels one of which houses the posterior nose opening obturator feed tube such that the sleeve is movable throughout the feed tube length, and the other channel houses a catheter used to evacuate pathological secretion from the paranasal sinuses and/or to administer pharmaceutical solutions into the paranasal sinuses for diagnostic or treatment purposes (see USSR Invention Certificate No. 1768141 published on Oct. 15, 1992). This device has disadvantages similar to those attributed to the invention described above.

The proposed technical solution is aimed at addressing the issue and to achieve the technical result of improving the efficiency of treatment of nose and paranasal sinuses diseases by bringing a catheter close to the nasal cavity to enable the catheter to function as appropriate, to upgrade its operational properties and to add functions facilitating high treatment efficacy.

The above objective and technical result are achieved by providing a device for conservative treatment of nose and paranasal sinuses diseases, comprising anterior and the posterior nose opening obturators, each of which is configured as an expandable shell made of elastic material and provided with a feed tube whose distal end is in communication with a cavity under the shell and whose proximal end is provided with an adapter having a valve mechanism, the posterior nose opening obturator shell being tightly fixed at the distal section of its feed tube, and the anterior nose opening obturator shell is tightly fixed onto the sleeve, the sleeve having two channels one of which houses the posterior nose opening obturator feed tube such that the sleeve is movable throughout the feed tube length, and the other channel houses a catheter used to evacuate pathological secretion from the paranasal sinuses and/or to administer pharmaceutical solutions into the paranasal sinuses for diagnostic or treatment purposes, the catheter is arranged in said channel such that its distal section is movable into the space between the shells of the obturators.

Furthermore, in the device for conservative treatment of nose and paranasal sinuses diseases the catheter may have at least one additional channel whose drainage port is located between the shells of the posterior and anterior nose openings' obturators, and the distal section of the catheter may be curved with respect to the catheter centerline. At least one additional round, oval, or rectangular shaped drainage port may be provided on the surface of the distal section of the catheter.

Furthermore, in the device for conservative treatment of nose and paranasal sinuses diseases, at least the distal section of the catheter and/or the posterior nose opening obturator feed tube may be reinforced with a flexible metal rod. In addition, the catheter of the proposed device more proximal of the sleeve may have a catheter limit stop while a sleeve retainer may be installed on the posterior nose opening obturator feed tube between the sleeve and the adapter with the valve mechanism. A sleeve position scale may be provided at the section along the feed tube of posterior nose opening obturator between the obturator's shell and the adapter with the valve mechanism.

Also, in the conservative treatment device of nose and paranasal sinuses diseases, at least one additional channel may be provided laterally to the feed tube channel with an inlet port being located on its proximal end and at least one drainage port may be positioned between the shells of the anterior and the posterior nose openings' obturators and may be round, oval or rectangular shaped.

The device for conservative treatment of nose and paranasal sinuses diseases may be furnished with an additional obturator configured as an expandable shell and a pressure channel, said shell being tightly secured to the posterior nose opening obturator feed tube between its shell and sleeve, and the additional obturator pressure channel is positioned laterally to the posterior nose opening obturator feed tube channel.

With the catheter being arranged in the respective sleeve channel such that it may move along the distal section between the obturators' shells, the drainage port of the catheter may be distanced away from nasal mucosal edema of the inferior turbinate and brought next to the area of the middle and superior nasal meatuses, i.e. directly to the area of the natural ostia of the paranasal sinuses. The extension of the distal section of the catheter to the middle and superior nasal meatuses ensures appropriate evacuation of pathological secretion from the paranasal sinuses and even distribution of a pharmaceutical solution in the sinuses which largely improves the procedure efficacy.

With the catheter being provided with at least one additional channel whose drainage port is located between the shells of the posterior and anterior nose openings' obturators, a pharmaceutical solution may be administered into the nasal cavity in parallel with the evacuation of exudate. A pharmaceutical solution washes over the intranasal structures and ensures the dilution of thick and viscous pathological secretions, thus facilitating their evacuation, while significantly improving the procedure efficacy.

With the catheter's distal portion being curved with respect to the centerline, the distal section may be elevated above the nasal mucosal edema of the inferior turbinate and bring it directly to the area of the middle and superior nasal meatuses, i.e. directly to the area of the natural ostia of the paranasal sinuses, which adds much more efficiency to the evacuation of pathological secretion and to the filling of the paranasal sinuses with a pharmaceutical solution.

Providing at least one additional drainage port on the surface of the distal section of the catheter, which may be round, oval or rectangular shaped, reduces the probability of the catheter being clogged with the nasal mucosal edema when intermittent pressure is produced in the nasal cavity and the paranasal sinuses followed by the evacuation of exudate which also makers treatment more efficacious.

Reinforcing at least one distal section of the catheter with a flexible metal rod improves the maneuverability of the catheter in the proposed device and improves the performance of the invention.

Providing a catheter limit stop on the catheter more proximal of the sleeve prevents the catheter from being pushed further up into the nasal cavity and/or catheter's drainage port being inserted into the sleeve.

Reinforcing the posterior nose opening obturator feed tube with a flexible metal rod improves the maneuverability of the proposed device's tube and improves the performance of the device.

By positioning the posterior nose opening obturator feed tube between the sleeve and the adapter with the retainer's valve mechanism, the device is secured in the area of the columella and the ala of the nose when the shell of the posterior nose opening obturator expands, whereas the physician is not required to hold the device in the hand. Furthermore, the retainer secures the position of the sleeve in the nasal vestibule during a treatment procedure thus ensuring that the nasal cavity remains airtight.

By providing the sleeve position scale in the area of the posterior nose opening obturator feed tube between its shell and the adapter with the valve mechanism, the optimum distance between the obturators shells may be determined during the first treatment procedure and the sleeve may be set at the same distance during follow-up treatment procedures which also delivers a better performance of the device.

By providing laterally to the feed tube's channel at least one additional channel with an inlet port at its proximal end and with at least one drainage port which is located between the shells of the posterior and anterior nose opening obturators and may be round, oval or rectangular shaped, a pharmaceutical solution may be administered into the nasal cavity in parallel with the evacuation of exudate. Administered via the additional channel, a pharmaceutical solution washes over the intranasal structures and ensures the dilution of thick and viscous pathological secretions, thus facilitating their evacuation via the catheter, while significantly improving the procedure efficacy.

By providing the device with an additional obturator configured as an expandable shell and a pressure channel, said shell is tightly secured to the posterior nose opening obturator feed tube between its shell and sleeve, while the pressure channel positioned laterally to the posterior nose opening obturator feed tube channel enables the device to be used to staunch nasal bleeding that may start during a treatment procedure thus adding more functionality to the proposed device.

