CN217660295U - Nasal cavity support and nasal cavity irrigation and irrigation system - Google Patents

Abstract

The utility model relates to a nasal cavity support and nasal cavity irrigation rinse-system, including netted support main part to and the spraying pipe that has open end and blind end, open end is located the netted support main part outside and is used for being connected with the spraying and suction source, and the blind end is located hollow passage, is provided with on the lateral wall of spraying pipe and spouts the suction hole. Like this, the scheme of this disclosure utilizes the characteristic of nasal cavity support ingeniously, can also not receive the restriction of nasal threshold and special construction when supporting the nasal cavity, to operations such as the all-round washing of nasal cavity mucosa, administer, filth suction, it is convenient to control on the one hand, on the other hand makes the nasal cavity irrigation of special parts, the suction becomes possible, improve the nasal cavity and wash the clearance, realize the accurate of special parts and administer, a brand-new technical scheme of medical intervention in the nasal cavity, be particularly useful for the treatment of diseases such as infection and allergy of nasal cavity, nasopharynx chamber and eustachian tube position, also be applicable to the treatment of nasal cavity mucosa perioperative period after the nose operation, promote the mucosa to recover, prevent adhesion and relapse.

Description

Nasal cavity support and nasal cavity irrigation and irrigation system

Technical Field

The disclosure relates to the technical field of medical equipment, in particular to a nasal cavity support and a nasal cavity irrigation and flushing system.

Background

The nasal cavity diseases in the otorhinolaryngology department, such as chronic rhinosinusitis-nasopharyngitis, adenoid hypertrophy or nasal septum deflection and the like, have high morbidity, seriously affect the life quality of patients, are also the causes of a plurality of ear, pharyngeal and lower airway diseases, and have overlong medicament treatment time due to the abnormity of obstruction and anatomical structures, so that the inflammation is not easy to completely eliminate and is delayed to be chronic. Complications of nasal cavity adhesion can occur after operation, airflow at a diseased part can be blocked due to the nasal cavity adhesion, inflammation can not be resolved, and the disease recurs again, and partial residual blood and purulent secretion are easy to remain in an operation cavity, if the operation cavity is not cleaned in time, secondary infection can occur, and the disease is affected after healing.

The reticular nasal stent is an important means for clinically improving the ventilation function of the nasal cavity, treating epistaxis and preventing nasal cavity adhesion or restenosis, and can prevent postoperative complications such as nasal septum hematoma, nasal cavity adhesion and the like. The reticular nasal stent can be stretched and contracted along the radial direction, thereby having the characteristics of simple operation, sufficient support, wide application range and strong use comfort in the implantation process. Aiming at partial residual blood and purulent secretion remained in an operative cavity, the conventional nasal irrigator is clinically used at present to spray and wash the nasal cavity at regular time, but the washing area is severely limited and is influenced by the nasal threshold and the nasal cavity structure, the washing efficiency is low, a plurality of important areas (such as a sniffing area, a nasal meatus and a sinus ostium complex and the like) can not be washed, the nasal spray medicine is difficult to reach, the curative effect is influenced, and in addition, the nasal irrigator needs to be inserted into the nasal cavity for a plurality of times during use, the pain and the operation difficulty of a patient are increased, and the specific position can not be accurately washed and dosed. The speed and pressure direction of the irrigation administration and the like are difficult to control.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a nasal cavity support and nasal cavity irrigation rinse-system to solve the nasal cavity support and can't compromise the technical problem who supports and wash, administer medicine, filth suction.

In order to achieve the above object, the present disclosure provides a nasal stent, including a mesh stent body for supporting a nasal cavity, the mesh stent body having a hollow channel extending in an axial direction, the nasal stent further including a spray tube having an open end and a closed end, the spray tube penetrating the mesh stent body and extending along the hollow channel, wherein the open end is located outside the mesh stent body for connecting with a spray source, the closed end is located in the hollow channel, and at least a part of a side wall of the spray tube is provided with spray holes, and the spray holes are disposed toward the side wall of the mesh stent body.

Optionally, the mesh stent main body is integrally formed by weaving metal wires.

Optionally, the outer end of the metal wire is fastened to the outer wall of the spray pipe by a fastening point.

Optionally, the ejector tube extends along a central axis of the hollow passage.

Optionally, the axis of the spray hole is arranged obliquely with respect to a radial direction of the spray pipe.

Optionally, the plurality of spraying and sucking holes are arranged at intervals in a circle, and the plurality of spraying and sucking holes in the same circle form an angle of 30-60 degrees with the radial direction along the same clockwise direction in the circumferential direction.

Optionally, the outer diameter of the spraying and sucking pipe is 1mm-3mm, and the aperture of the spraying and sucking hole is 0.1mm-0.5mm.

Optionally, the spray pipe is formed by integrally molding a high polymer material or stainless steel.

Optionally, the mesh stent body comprises a first expansion section, a second expansion section and a tubular support section which are sequentially arranged from front to back along the axial direction, the first expansion section is used for supporting in the nasal vestibule and can be expanded outwards in a spherical shape along the radial direction, the second expansion section is used for supporting on the nasal septum mucosa and can be expanded outwards in a spherical shape along the radial direction, the tubular support section is used for supporting in the nasal passage,

in the unloaded state, the outer diameters of the second expanding section, the first expanding section and the tubular supporting section are reduced in sequence,

the arrangement position of the spraying and sucking holes of the spraying and sucking pipe corresponds to the second expansion section and/or the tubular supporting section.

In a second aspect of the present disclosure, there is also provided a nasal irrigation system comprising an ejector source and a nasal stent as described above, the ejector source being in communication with the open end of the ejector tube.

Through the technical scheme, the net-shaped support main body of the nasal cavity support provided by the disclosure is of a net-shaped structure, and the spraying and sucking pipe with the spraying and sucking holes is ingeniously arranged in the hollow channel of the net-shaped support main body, on one hand, the nasal cavity support can be used for supporting the nasal cavity, meanwhile, the characteristics that the nasal cavity support can extend in the nasal cavity are utilized, the nasal cavity support can be free of limitation of a nasal threshold and a special structure, the nasal cavity mucosa in the nasal cavity is comprehensively flushed, administered, sewage is sucked and the like, the arrangement position of the spraying and sucking holes can be adjusted according to the position of an affected part of a patient, flushing and administration of a specific position in the nasal cavity are facilitated, irrigation and suction of the nasal cavity in the specific position are enabled to be possible, the nasal cavity flushing and clearing rate is improved, accurate administration of the specific position is achieved, the novel technical scheme of medical intervention in the nasal cavity is particularly suitable for treatment of infection, allergy and other diseases of the nasal cavity, the nasopharynx cavity, the eustachian tube position is also suitable for treatment in the perioperative period of the nasal cavity after the nasal cavity, mucosa is promoted to recover, and adhesion and recurrence are prevented. When using nasal cavity support, at first along radial compression nasal cavity support, and send into the nasal cavity with nasal cavity support through the nostril along the axial, when nasal cavity support was put into preset position, can expand and support in patient's nasal cavity along radial elasticity, make nasal cavity support can be applicable to different nasal cavity internal dimension, thereby improve nasal cavity support's suitability, at this moment, the ejector tube can see through netted support main part and dose to the nasal cavity, thereby make nasal cavity support can compromise the washing to the operation position in the nasal cavity, the administration, the filth is got rid of and is supported, and this nasal cavity support controls the convenience, it is not restricted to wash the position, be favorable to patient's postoperative to resume.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a front view of a nasal stent provided in an exemplary embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of a nasal stent provided in an exemplary embodiment of the present disclosure;

FIG. 3 is a schematic structural view of a suction nozzle in a nasal stent provided in an exemplary embodiment of the present disclosure;

FIG. 4 is a schematic structural view of a suction nozzle in a nasal stent provided in another exemplary embodiment of the present disclosure;

fig. 5 is a cross-sectional view of a spray tube in a nasal stent provided in an exemplary embodiment of the present disclosure.

Description of the reference numerals

1. The first expansion section of the main body 110 of the mesh stent

120. Second expansion section 130 tubular support section

2. Open end of the spray pipe 210

220. Closed end 230 spray hole

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the terms of orientation such as "inside and outside" are used to refer to the inside and outside of the profile of the corresponding component itself, and the terms of orientation such as "front and back" are used to refer to the front end near the nostril and the back end deep into the nasal passage after the nasal stent is placed in the nasal cavity. Terms such as "unloaded state" are used to refer to the state of the nasal stent when uncompressed and fully relaxed, "first", "second", etc. to distinguish one element from another, without order or importance. Furthermore, in the following description, when referring to the drawings, like reference numbers in different drawings denote like elements.

In order to achieve the above objects, the present disclosure provides a nasal stent, as shown in fig. 1 to 4, which may include a mesh stent body 1 for supporting a nasal cavity, the mesh stent body 1 having a hollow passage extending in an axial direction so that the mesh stent body 1 can be inserted into the nasal cavity in the axial direction and can be expanded or contracted in a radial direction of itself, the nasal stent further including an ejector tube 2 having an open end 210 and a closed end 220, the ejector tube 2 penetrating the mesh stent body 1 and extending along the hollow passage, wherein the open end 210 is located outside the mesh stent body 1 for connection with an ejector source, and the closed end 220 is located in the hollow passage, wherein the ejector source may be an irrigation device or a suction device, wherein the irrigation device may be used for irrigation and administration of the nasal cavity, the suction device may perform reverse suction to discharge contaminants when there is too much mucus or the like inside the nasal cavity to prevent infection, and further, the ejector source may be provided with a flow control valve, a pressure control valve so that pressure and flow rate of irrigation, administration and suction can be adjusted to a certain pressure according to a patient's own convenience and to cause discomfort when the patient. Further, at least a part of the side wall of the spray tube 2 is provided with a spray hole 230, and the spray hole 230 is disposed toward the side wall of the mesh stent body 1, so that the fluid can be sprayed from the spray hole 230 toward the inner wall of the nasal cavity after entering the spray tube 2.

Through the technical scheme, the mesh-shaped support main body 1 of the nasal cavity support provided by the disclosure is of a mesh structure, and the spray-suction pipe 2 with the spray-suction holes 230 is skillfully arranged in the hollow channel of the mesh-shaped support main body 1, so that on one hand, the nasal cavity support can be used for supporting the nasal cavity, and meanwhile, by utilizing the characteristic that the nasal cavity support can extend in the nasal cavity, the spray-suction pipe 2 in the nasal cavity can extend into the position exceeding the nasal threshold in the nasal cavity, so that the irrigation, administration, suction and other operations are not limited by the position of the nasal cavity, the arrangement position of the spray-suction holes 230 can be adjusted according to the position of an affected part of a patient, and the irrigation and administration of a specific position in the nasal cavity are facilitated, so that the possibility is brought for the irrigation and suction of the nasal cavity with controllable and high irrigation and suction rate, the mesh-suction nasal cavity support is a brand-new technical scheme for medical intervention in the nasal cavity, and is particularly suitable for the treatment of infection, allergy and other diseases of the nasal cavity, and is also suitable for the perioperative treatment of the nasal cavity mucosa, the promotion of mucosa recovery, and the prevention of adhesion and recurrence. When using nasal cavity support, at first along radial compression nasal cavity support, and send into the nasal cavity with nasal cavity support through the nostril along the axial, when nasal cavity support was put into preset the position, can expand and support in patient's nasal cavity along radial elasticity, make nasal cavity support can be applicable to different nasal cavity internal dimension, thereby improve nasal cavity support's suitability, at this moment, spray tube 2 can see through 1 to the intranasal of netted support main part and dose, thereby make nasal cavity support can compromise the washing to the intranasal operation position, dose, the filth is got rid of and is supported, and this nasal cavity support controls conveniently, it is not restricted to wash the position, be favorable to patient's postoperative to resume.

In a specific embodiment of the present disclosure, referring to fig. 1, the mesh-shaped stent body 1 may be integrally woven with a metal wire, and the metal wire may be selected from a titanium-nickel alloy wire, so that the mesh-shaped stent body 1 has a better structural strength, and it is ensured that the nasal stent can be stably supported in the nasal cavity of a patient, wherein the content of nickel may be 54.5-57%. In addition, in other embodiments, the mesh stent body 1 can also be integrally formed by laser cutting. Here, the net-shaped support main body 1 can be formed into an integrated net-shaped structure, which is beneficial to ensuring that when the nasal cavity support is arranged in the nasal cavity of the patient, the patient can still breathe smoothly, thereby improving the comfort level of use.

As an exemplary embodiment of the present disclosure, referring to fig. 2, the outer end of the metal wire may be fastened to the outer wall of the ejector pipe 2 through a fastening point, specifically, the outer end of the metal wire is fastened to the outer wall at the open end 210 of the ejector pipe 2, and the outer end of the metal wire may also be fixed to the outer wall of the ejector pipe 2 through a hoop member.

Further, referring to fig. 2, the spray tube 2 may extend along a central axis of the hollow passage, so that the spray tube 2 can be extended into the nasal cavity in an axial direction of the hollow passage, for washing and administering the medicine to an affected part in the nasal cavity, or sucking mucus in the nasal cavity to discharge filth.

Wherein, the ejector 2 can still include house steward and a plurality of branch pipe, the open end 210 of ejector 2 can form the tip at house steward, the one end of a plurality of branch pipes is connected to the other end of house steward and forms blind end 220 respectively, all be formed with ejector hole 230 on every branch pipe, and a plurality of branch pipes are along circumference evenly distributed at hollow channel's inner wall, and like this, the ejector source fills the house steward with the fluid, then enter into each branch pipe, and then spout to the nasal cavity inner wall through ejector hole 230 low coverage ground, because the branch pipe pastes the inner wall of establishing at hollow channel, its position of spraying is more close to the nasal cavity inner wall, can promote the cleaning performance. In particular, the number of minute tubes may be greater than or equal to two.

According to some embodiments, referring to fig. 5, the axis of the ejection hole 230 may be arranged obliquely with respect to the radial direction of the ejection tube 2. This makes the fluid swirl counterclockwise or clockwise in the direction of inclination of the axis of the ejection hole 230, and can improve the flushing effect. The hole of the injection hole 230 may be a straight hole or a spiral hole, and the effect of fluid swirling may be achieved, which is not specifically limited herein.

Specifically, referring to fig. 5, the plurality of ejection holes 230 may be provided in a plurality and at intervals in a circle, and the plurality of ejection holes 230 in the same circle make an angle α with the radial direction of the ejection tube 2 in the same clockwise direction in the circumferential direction, and α may be 30 to 60 °, specifically, α may be 45 °. In addition, the axes of the plurality of spray holes 230 may be inclined in the same direction to the axial direction of the spray pipe 2, and the axes of the spray holes 230 may form an angle of 30 to 60 ° with the axial direction of the spray pipe 2. As shown in fig. 3 and 4, the spraying holes 230 may be arranged linearly along the axial direction of the spraying tube 2 or alternatively arranged in a staggered manner to wash and administer the medicine around the nasal cavity.

In addition, the length of the spray pipe 2 can be 10mm-160mm, the outer diameter can be 1mm-3mm, thus, the spray pipe 2 can go deep to the position exceeding the nasal threshold, and the length design is carried out according to the position of the nasal cavity to be aimed at, so as to wash and administer the nasal sinuses, nasopharynx and other parts, the operation is convenient, the washing range is enlarged, the aperture of the spray hole 230 can be 0.1mm-0.5mm, and the number of the spray holes 230 can be set adaptively according to the size of the aperture of the spray hole 230.

In some embodiments, the spray pipe 2 may be integrally formed of a polymer material or stainless steel. Specifically, the polymer elastic material may be one of silicone rubber, polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polylactic acid (PLA), and polyvinyl alcohol (PVA). The polymer elastic material has the properties of relatively comprehensive strength, toughness and elasticity, and particularly, the silica gel has excellent physiological inertia, can resist coagulation, has good compatibility with organisms, and can withstand harsh disinfection conditions.

In order to improve the comfort of the nasal stent, referring to fig. 1 and 2, the mesh stent body 1 may include a first expanding section 110, a second expanding section 120 and a tubular supporting section 130, which are sequentially arranged from front to back along the axial direction, the first expanding section 110 is configured to be supported in the nasal vestibule and capable of expanding outward in a radial spherical shape, the second expanding section 120 is configured to be supported on the nasal septum mucosa and capable of expanding outward in a radial spherical shape, the tubular supporting section 130 is configured to be supported in the nasal passage, in an unloaded state, the outer diameters of the second expanding section 120, the first expanding section 110 and the tubular supporting section 130 are sequentially reduced, and the arrangement position of the ejection hole 230 of the ejection tube 2 corresponds to the second expanding section 120 and the tubular supporting section 130 or to one of the second expanding section 120 and the tubular supporting section 130. The first expanding section 110 and the second expanding section 120 are radially and spherically expanded outwards, which means that the first expanding section 110 and the second expanding section 120 are substantially spherically expanded, that is, the shape of the first expanding section 110 and the second expanding section 120 in the unloaded state may be slightly different from the ideal spherical shape, for example, may be an oval sphere. When the tubular supporting section 130 sequentially passes through the nasal vestibule, the nasal threshold and the nasal septum mucous membrane and finally reaches the nasal passage, the tubular supporting section 130 can be stretched into a tubular structure, so that the tubular supporting section adapts to the structure of the nasal passage and provides uniform supporting force for the nasal passage, the second expanding section 120 can be stretched roughly spherically so as to provide uniform pressing force for the nasal septum mucous membrane, the first expanding section 110 can be stretched roughly spherically so as to provide uniform supporting force for the nasal vestibule, a groove formed at the connecting position of the first expanding section 110 and the second expanding section 120 can avoid the nasal threshold of a patient, and therefore the use comfort of the nasal stent is improved.

The outer diameters of the first and second dilating segments 110, 120 are larger than the outer diameter of the tubular supporting segment 130, which can increase the supporting force for the nasal septum and nasal vestibule. The outer diameter of the second dilating segment 120 may be larger than the outer diameter of the first dilating segment 110 to increase the compression of the second dilating segment 120 against the septum mucosa and thereby reduce the likelihood of hematoma in the septum mucosa. In addition, first expansion section 110 and second expansion section 120 form the calabash shape structure jointly, and second expansion section 120 forms the main aspects of calabash shape structure, can enough avoid nasal cavity support outwards to deviate from the nasal cavity, can avoid nasal cavity support excessively to get into the nasal cavity again to a certain extent to can play along the effect of axial positioning nasal cavity support. As shown in fig. 2, the position of the spray hole 230 of the spray pipe 2 may correspond to the second dilating segment 120 and the tubular supporting segment 130, or correspond to one of the second dilating segment 120 and the tubular supporting segment 130, that is, the spray pipe 2 can break the nasal threshold to achieve the administration, irrigation and suction of the nasal sinuses, nasopharynx, etc., of course, the position of the spray hole 230 of the spray pipe 2 may also correspond to the first dilating segment 110, the second dilating segment 120 and the tubular supporting segment 130, or correspond to one or both of the first dilating segment 110, the second dilating segment 120 and the tubular supporting segment 130, which is not particularly limited in this disclosure.

In the unloaded state, the first expansion segment 110 may have a length of 8mm to 15mm, and an outer diameter of 8mm to 15mm, the second expansion segment 120 may have a length of 10mm to 40mm, and an outer diameter of 12mm to 28mm, the tubular support segment 130 may have a length of 20mm to 120mm, and an outer diameter of 5mm to 15mm, in particular embodiments of the present disclosure. Alternatively, the first dilating segment 110 may have a length of 8mm to 12mm and an outer diameter of 10mm to 13mm, the second dilating segment 120 may have a length of 12mm to 20mm and an outer diameter of 15mm to 25mm, and the tubular supporting segment 130 may have a length of 22mm to 38mm and an outer diameter of 10mm to 13mm, so that the nasal stent is sized to fit the internal structure of the nasal cavity of most patients.

According to the second aspect of the present disclosure, there is also provided a nasal irrigation system comprising an ejector source and the nasal stent described above, the ejector source being in communication with the open end 210 of the ejector tube 2 for charging and discharging fluid to the ejector tube 2 through the ejector source. In particular, the insufflation source may have flow, pressure control valves to adjust the pressure and flow of irrigation, administration and aspiration as required. This nasal cavity irrigation system can be applied to operation such as nasal septum rectification art or nasosinusitis postoperative to can arrange patient's nasal cavity in through the nasal cavity support with this nasal cavity irrigation system, thereby realize playing the effect of supporting, washing, dosing, suction mucus to patient's nasal cavity inside. And this nasal cavity irrigation system controls the convenience, can wash, administer to the specific position of affected part, and has above-mentioned nasal cavity support's all beneficial effects, and this disclosure is no longer repeated herein.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A nasal stent comprises a mesh stent body (1) for supporting a nasal cavity, the mesh stent body (1) is provided with a hollow channel extending along an axial direction, the nasal stent is characterized by further comprising an injection and suction tube (2) with an open end (210) and a closed end (220), the injection and suction tube (2) penetrates into the mesh stent body (1) and extends along the hollow channel, wherein the open end (210) is positioned outside the mesh stent body (1) to be connected with an injection and suction source, the closed end (220) is positioned in the hollow channel, at least part of the side wall of the injection and suction tube (2) is provided with injection and suction holes (230), and the injection and suction holes (230) are arranged towards the side wall of the mesh stent body (1).

2. The nasal stent according to claim 1, wherein the mesh stent body (1) is integrally woven from metal wires.

3. The nasal stent according to claim 2, characterized in that the outer ends of the metal wires are fastened to the outer wall of the suction tube (2) by means of fastening points.

4. The nasal stent according to claim 1, wherein the suction tube (2) extends along a central axis of the hollow channel.

5. The nasal stent according to claim 1, characterized in that the axis of the suction orifice (230) is arranged obliquely with respect to the radial direction to the suction tube (2).

6. The nasal stent according to claim 5, wherein the plurality of the spraying holes (230) are arranged at intervals in a circle, and the plurality of the spraying holes (230) in the same circle are at an angle of 30-60 ° to the radial direction in the same clockwise direction in the circumferential direction.

7. The nasal stent according to claim 1, wherein the outer diameter of the suction tube (2) is 1mm-3mm, and the diameter of the suction hole (230) is 0.1mm-0.5mm.

8. The nasal stent according to any one of claims 1-7, wherein the suction tube (2) is integrally formed of a polymeric material or stainless steel.

9. The nasal stent according to claim 1, wherein the mesh stent body (1) comprises a first expanding section (110), a second expanding section (120) and a tubular supporting section (130) which are sequentially arranged from front to back along the axial direction, the first expanding section (110) is used for supporting in the nasal vestibule and can be radially spherically expanded outwards, the second expanding section (120) is used for supporting on the nasal septum mucosa and can be radially spherically expanded outwards, the tubular supporting section (130) is used for supporting in the nasal passage,

in the unloaded state, the outer diameters of the second expanding section (120), the first expanding section (110) and the tubular supporting section (130) are sequentially reduced,

the arrangement position of the spraying and sucking holes (230) of the spraying and sucking pipe (2) corresponds to the second expansion section (120) and/or the tubular support section (130).

10. A nasal irrigation system comprising an ejector source and a nasal stent according to any one of claims 1-9, the ejector source being in communication with the open end (210) of the ejector tube (2).

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