Nasal cannula to prevent negative pressure

Abstract

The present invention relates to a nasal catheter for preventing negative pressure, and more specifically, to the following nasal catheter for preventing negative pressure, comprising: a catheter body, which connects nasal leakage or secretions to one end of the shaft of an aspirator, comprises a cone portion and an extension portion and is inserted into the nasal cavity, wherein the diameter of the cone portion increases from the front end portion toward the rear end portion, and the extension portion forms a channel extending from the cone portion; and a ventilation portion, which forms a ventilation hole that passes through from the front end portion of the cone portion toward the rear end portion, so that external air flows into the nasal cavity.

Description

Technical Field

[0001] The present invention relates to a nasal catheter for preventing negative pressure, and more particularly, to a nasal catheter for preventing negative pressure, wherein a ventilation portion is formed to allow external air to flow into a catheter body, and when the catheter body is inserted into the nasal cavity and negative pressure suction is performed, the nasal cavity is prevented from being blocked. Background Art

[0002] Typically, a suction catheter uses a vacuum device or the like to suck secretions (including accumulations, the same below) in a body cavity of a human or animal and discharges them to the outside.

[0003] The existing suction catheter comprises: a circular guide portion formed integrally with the catheter body and the front end of the catheter body; and a connector formed integrally with the rear end of the catheter body. One or two suction holes are usually formed in the catheter body region adjacent to the guide portion.

[0004] For example, if the guide part is inserted into the throat and the vacuum device connected to the connector is activated, phlegm is discharged from the throat through the suction hole. In addition, the guide part can be inserted into the human urethra to extract urine accumulated in the bladder.

[0005] However, the problem is that the conventional suction catheter having the above structure has only a few suction holes formed in the catheter body region adjacent to the guide portion, which causes the suction pressure to concentrate, thereby causing damage to the body tissue.

[0006] Furthermore, the problem is that the front end of the catheter body is closed to the suction hole, so that the portion of the catheter body corresponding to the length between the front end of the catheter body and the suction hole cannot play a suction role, and the suction catheter of the above length needs to be further inserted into the human body.

[0007] Also, recent attempts have been made to remove secretions from the nasal cavity using suction catheters, but this may further lead to the problems of existing suction catheters as described above.

[0008] In particular, purulent rhinorrhea inside the nasal cavity is a residue caused by inflammation, which can cause bacterial growth and infection, so it is necessary to remove and clean it.

[0009] When a catheter is used to suction a nasal discharge, the area connecting the nose and throat (the choanae and nasopharynx) swells or narrows, and when the volume of air corresponding to the area being suctioned cannot flow in, negative pressure is formed in the nasal cavity, making suction impossible.

[0010] Prior art literature

[0011] Patent Literature

[0012] Patent Document 1: Korean Patent Publication No. 10-2012-0008633 (published on February 1, 2012) Summary of the invention

[0013] In order to solve the problems of the prior art as described above, the present invention provides a nasal catheter with a new structure for preventing negative pressure, forming a ventilation part for allowing external air to flow into the catheter body, and when the catheter body is inserted into the nasal cavity and negative pressure suction is performed, the phenomenon of the nasal cavity being blocked is avoided.

[0014] Furthermore, the present invention provides a nasal catheter for preventing negative pressure, which adjusts the inflow of air through a ventilation unit according to whether the posterior nasal passage is blocked or not.

[0015] Furthermore, the present invention provides a nasal catheter for preventing negative pressure, wherein at least one opening portion communicating with a ventilation portion is formed, so that a hose capable of supplying moisture to the nasal cavity is connected.

[0016] In order to solve the above-mentioned problems, the present invention provides the following nasal catheter for preventing negative pressure, comprising: a catheter body, which is formed by a catheter, the catheter is connected to one end of a shaft, the shaft is arranged on an aspirator, the aspirator aspirates nasal discharge or secretions and discharges them to the outside, the catheter body comprises a cone portion and an extension portion and is inserted into the nasal cavity, the diameter of the cone portion increases from the front end portion toward the rear end portion of the catheter, the extension portion forms a channel extending from the cone portion; and a ventilation portion, which forms a ventilation hole that passes through from the front end portion toward the rear end of the cone portion, so that external air flows into the nasal cavity.

[0017] The embodiment of the present invention is characterized in that when one end of the ventilation hole located at the rear end of the cone portion is closed, the ventilation portion can increase the suction force that allows the nasal leakage or secretions inside the nasal cavity to flow into the inner side of the catheter body.

[0018] An embodiment of the present invention may include: a catheter body, the catheter is connected to one end of a shaft, the shaft is arranged on an aspirator, the aspirator aspirates nasal discharge or secretions and discharges them to the outside, the catheter body includes a cone portion and an extension portion and is inserted into the nasal cavity, the diameter of the cone portion increases from the front end portion toward the rear end portion of the catheter, and the extension portion forms a channel extending from the cone portion; and a ventilation portion, formed by an inflow tube, the inflow tube is an internal hollow tube, one end of which is located at the front end portion of the cone portion, and the other end is located at one side of the extension portion, the ventilation portion forms an inflow hole, the inflow hole is bent and penetrated from the other end of the inflow tube to the outer surface of the extension portion, so that external air flows into the nasal cavity.

[0019] The embodiment of the present invention is characterized in that, when the inflow hole is closed, the ventilation portion can increase the suction force to make the rhinorrhea or secretions inside the nasal cavity flow into the inner side of the catheter body.

[0020] An embodiment of the present invention may include an inclined portion forming an inclined surface inside the front end of the cone portion, thereby reducing the pressure of air sucked from the front end of the cone portion.

[0021] In an embodiment of the present invention, the outer surface of the cone portion may include an opening portion, and the opening portion has at least one hole communicating with the ventilation portion.

[0022] The advantage of the nasal catheter for preventing negative pressure of the present invention is that when the catheter body is inserted into the nasal cavity and negative pressure inhalation is performed, external air flows into the catheter body to increase the inhalation of rhinorrhoea and secretions in the nasal cavity, thereby avoiding the phenomenon of the nasal cavity being blocked.

[0023] Furthermore, the present invention has the advantage that, when the passage is blocked by rhinorrhea or swelling of inflammatory tissue in the posterior nasal cavity inside the nasal cavity, air is allowed to flow into the nasal cavity to allow mucus to be discharged smoothly.

[0024] Furthermore, the present invention has the advantage that, depending on whether the posterior nasal passage is blocked or not, the inflow of air can be adjusted through the ventilation unit, thereby adjusting the suction force of the catheter.

[0025] Furthermore, the present invention has the advantage that the nasal catheter for preventing negative pressure can form at least one opening portion communicating with the ventilation portion, so that a hose for supplying moisture into the nasal cavity can be connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a perspective view showing the appearance of a nasal catheter for preventing negative pressure according to an embodiment of the present invention.

[0027] Figure 2 It is a partially enlarged cross-sectional view showing the cross-section of a nasal catheter for preventing negative pressure according to an embodiment of the present invention.

[0028] Figure 3 and Figure 4 The diagram is an exemplary diagram illustrating the concept of a nasal cannula for preventing negative pressure according to an embodiment of the present invention.

[0029] Figure 5 It is a partially enlarged cross-sectional view showing the cross section of a nasal catheter for preventing negative pressure according to an application example of the present invention.

[0030] Figure 6 The figure is an exemplary view showing a cross section of an inclined portion of a nasal catheter for preventing negative pressure according to an embodiment of the present invention.

[0031] Figure 7This is an exemplary diagram showing a cross section of an opening portion of a nasal catheter for preventing negative pressure according to an embodiment of the present invention.

[0032] Description of Reference Numerals

[0033] 10: Nasal cannula to prevent negative pressure

[0034] 11: Axis

[0035] 100: Catheter body

[0036] 110: cone

[0037] 120: Extension

[0038] 130: Channel

[0039] 200: Ventilation Department

[0040] 210: Ventilation hole

[0041] 300: Ventilation Department

[0042] 310: Inflow pipe

[0043] 320: Inflow hole

[0044] 400: Inclined part

[0045] 500: Opening DETAILED DESCRIPTION

[0046] Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention that can be easily implemented by a person skilled in the art to which the present invention belongs will be described in detail. However, if it is determined that the detailed description of the known functions or structures related to the detailed description of the working principle of the preferred embodiment of the present invention makes the subject matter of the present invention unclear, the detailed description thereof will be omitted.

[0047] Furthermore, throughout the drawings, the same reference numerals are used for structural elements having similar functions and effects.

[0048] In addition, throughout the specification, when it is mentioned that a certain structural element is "connected" to other structural elements, this may include not only the case of direct connection, but also the case of indirect connection with other structural elements in between. And, unless otherwise specifically stated to the contrary, "comprising" a certain structural element means that other structural elements may also be included, rather than excluding other structural elements.

[0049] Hereinafter, with reference to the accompanying drawings, a nasal catheter for preventing negative pressure according to a preferred embodiment of the present invention will be described in detail.

[0050] Figure 1 This is a perspective view showing the appearance of a nasal cannula for preventing negative pressure according to an embodiment of the present invention. Figure 2 FIG. 1 is a partially enlarged cross-sectional view showing a cross-section of a nasal catheter for preventing negative pressure according to an embodiment of the present invention. Figure 3 and Figure 4 This is an exemplary diagram showing the concept of a nasal cannula for preventing negative pressure according to an embodiment of the present invention. Figure 5 FIG. 1 is a partially enlarged cross-sectional view showing a cross-section of a nasal catheter for preventing negative pressure according to an application example of the present invention. Figure 6 1 is an exemplary diagram showing a cross section of an inclined portion of a nasal catheter for preventing negative pressure according to an embodiment of the present invention. Figure 7 This is an exemplary diagram showing a cross section of an opening portion of a nasal catheter for preventing negative pressure according to an embodiment of the present invention.

[0051] like Figure 1 As shown, the nasal catheter 10 for preventing negative pressure according to an embodiment of the present invention includes a catheter body 100 and a ventilation part 200 .

[0052] In more detail, Figure 1 and Figure 2 As shown, the nasal catheter 10 for preventing negative pressure according to the embodiment of the present invention comprises: a catheter body 100, which is formed by a catheter, the catheter is connected to one end of a shaft 11, the shaft 11 is arranged on an aspirator, the aspirator aspirates nasal discharge or secretions and discharges them to the outside, the catheter body 100 comprises a cone portion 110 and an extension portion 120 and is inserted into the nasal cavity, the diameter of the cone portion 110 increases from the front end portion toward the rear end portion of the catheter, the extension portion 120 forms a channel 130 extending from the cone portion; and a ventilation portion 200, which forms a ventilation hole 210 that passes through from the front end portion toward the rear end portion of the cone portion, so that external air flows into the nasal cavity.

[0053] Among them, the suction device is a machine that sucks out nasal mucus by negative pressure, and is usually used in medical institutions such as otolaryngology to suck out rhinorrhoea or secretions in the patient's nasal cavity. That is, the suction device is a machine device that sucks out rhinorrhoea or secretions from the body to the outside.

[0054] Reference Figure 1 and Figure 2 The catheter body 100 is formed by a flexible catheter with both sides open so that it can be inserted into the inside of the nasal cavity. In addition, the rhinorrhoea or secretion can be connected to one end of the shaft 11 of the aspirator.

[0055] The diameter of the cone portion 110 gradually increases from the front end portion toward the rear end portion, and the extension portion 120 is connected to one end of the shaft 11 .

[0056] That is, in order to insert the front end into the inside of the nasal cavity, the diameter of the cone portion 110 is small and gradually increases toward the rear end, thereby preventing excessive insertion into the inside of the nasal cavity. Moreover, preferably, it may have a predetermined elastic force to maintain its own shape inside the nasal cavity.

[0057] The channel 130 allows the front end of the cone portion 110 to communicate with the rear end and the extension portion 120 , so that nasal discharge, secretions or nasal mucus can be sucked into the front end of the cone portion 110 by activating the suction device.

[0058] Reference Figure 2 and Figure 3 The ventilation portion 200 forms a ventilation hole 210 that passes through from the front end of the cone portion 110 to the rear end, thereby allowing external air to flow into the nasal cavity.

[0059] For example, when a conventional nasal catheter is inserted into the nose and the nasal discharge, secretions, or mucus in the nasal cavity is sucked out by activating the suction device, negative pressure is generated and increased, so that the nasal discharge, secretions, or mucus cannot be sucked out smoothly. In addition, continuous suction into the closed nasal cavity may cause nasal septum bleeding or discomfort to the patient.

[0060] The ventilation hole 210 forms a separate tube P inserted therein so that air can flow into the nasal cavity through the tube P. The suction force of the nasal discharge, secretions, or mucus flowing into the front end of the cone 110 can be adjusted by opening and closing one end of the tube P.

[0061] Therefore, if Figure 3 and Figure 4 As shown, the nasal cannula 10 for preventing negative pressure according to the embodiment of the present invention has a ventilation part 200 formed with ventilation holes 210, so that external air flows into one side of the cannula body 100 inserted into the nasal cavity. Moreover, when the aspirator is activated and rhinorrhea or secretions are inhaled, the negative pressure in the nose is reduced by the inflow of air, thereby achieving smooth inhalation.

[0062] And, if Figure 3 As shown, in the case where rhinorrhea or edema of inflammatory tissue in the posterior nasal cavity inside the nasal cavity blocks the passage, when the aspirator is activated, the negative pressure in the nose is further increased, resulting in poor inhalation.

[0063] Therefore, as described above, external air flows into one side of the catheter body 100 inserted into the nasal cavity through the ventilation part 200 formed with the ventilation hole 210, and when the suction device is started and rhinorrhea or secretions are inhaled, as shown in FIG. Figure 4 As shown, the negative pressure will be reduced, so that nasal discharge or secretions can be sucked through the catheter body 100.

[0064] In this case, sticky mucus generated by rhinorrhea or edema of inflammatory tissue in the posterior nasal cavity may move around the front end of the catheter body 100 and be discharged from the inside of the nasal cavity to the outside.

[0065] This is because an amount of external air corresponding to the volume of rhinorrhea, secretions or nasal mucus sucked in by activating the suction device flows into the nasal cavity.

[0066] On the other hand, in the nasal catheter 10 for preventing negative pressure of an embodiment of the present invention, when one end of the ventilation hole 210 located at the rear end of the cone portion 110 is closed, the ventilation portion 200 increases the suction force that causes the rhinorrhea or secretions inside the nasal cavity to flow into the inner side of the catheter body 100.

[0067] That is, when suction is formed by reducing the negative pressure in the nasal cavity and the rhinorrhea or secretions cannot be removed smoothly due to the reduction of suction, the ventilation part 200 can increase the negative pressure in the nasal cavity by temporarily closing the ventilation hole 210. Therefore, the rhinorrhea or secretions in the closed nose are moved to the front end of the cone part 110 and moved to the suction device through the inside of the extension part 120.

[0068] As described above, the inflow of air and the negative pressure can also be adjusted by opening and closing one end of the ventilation hole 210.

[0069] like Figure 5 As shown, the nasal catheter 10 for preventing negative pressure in the application example of the present invention may include: a catheter body 100, which is formed by a catheter, the catheter is connected to one end of a shaft 11, the shaft 11 is set in an aspirator, the aspirator sucks nasal discharge or secretions and discharges them to the outside, the catheter body 100 includes a cone part 110 and an extension part 120 and is inserted into the nasal cavity, the diameter of the cone part 110 increases from the front end of the catheter to the rear end, and the extension part 120 forms a channel 130 extending from the cone part; and a ventilation part 300, which is formed by an inflow tube 310, the inflow tube 310 is an internal hollow tube, one end of which is located at the front end of the cone part 110, and the other end is located at one side of the extension part, the ventilation part 300 forms an inflow hole 320, and the inflow hole 320 is bent and penetrated from the other end of the inflow tube to the outer surface of the extension part, so that the external air flows into the nasal cavity.

[0070] The catheter body 100 is the same as described above, so a detailed description thereof will be omitted.

[0071] Reference Figure 5 The ventilation portion 300 allows external air to flow into the nasal cavity through the cone portion 110 . In order to make the opening and closing of the inflow hole 320 easier, it is formed from the front end of the cone portion 110 to one side of the extension portion 120 .

[0072] The inflow pipe 310 is an internal hollow pipe formed by a hole having one end located at the front end of the cone portion 110 and the other end located at one side of the extension portion 120. That is, the inflow pipe 310 may be formed by a hole extending from the front end of the cone portion 110 in the length direction and extending to one side of the extension portion 120, or by a separate pipe P inserted into the hole.

[0073] The inflow hole 320 is bent from the other end of the inflow tube 310 to the outer surface of the extension part 120 and penetrates through the extension part 120 , so that the outer surface of the extension part 120 can be connected with the other end of the inflow tube 310 .

[0074] As described above, when the inflow hole 320 is closed, the ventilation unit 300 can increase the suction force to make the rhinorrhea or secretions inside the nasal cavity flow into the inside of the catheter body 100. The detailed description thereof is the same as that of the ventilation unit 200, so the description thereof will be omitted.

[0075] Furthermore, in the ventilation unit 300 , the inflow hole 320 is formed on one side of the extension portion 120 and is located at a position separated from the patient's nose, so that the operator can open and close the inflow hole 320 more easily.

[0076] On the other hand, Figure 6 As shown, the nasal catheter 10 for preventing negative pressure according to the embodiment of the present invention may include an inclined portion 400 .

[0077] The inclined portion 400 forms an inclined surface at the inner side of the front end of the cone portion 110 , thereby reducing the pressure of the air sucked into the front end of the cone portion 110 .

[0078] For example, when the cone 110 is inserted into the nasal cavity and the suction device is activated, when the rhinorrhea or secretions move to the front end of the cone 110 and move excessively through the channel 130, the surface of the nasal septum may also be pressurized along the front end of the cone 110, thereby causing bleeding. Furthermore, if a large amount of rhinorrhea or secretions flows into the front end of the cone 110 at once, the front end of the cone 110 may be blocked, thereby causing poor suction.

[0079] Therefore, preferably, the inclined portion 400 is formed inside the front end of the catheter body 100, and the above-mentioned catheter body 100 forms one of the ventilation portion 200 and the other ventilation portion 300, thereby reducing the air pressure inhaled into the cone portion 110 to reduce the pressure applied to the nasal septum and reduce a large amount of rhinorrhea or one-time movement of secretions.

[0080] And, if Figure 7 As shown, the nasal catheter 10 for preventing negative pressure according to the embodiment of the present invention may include an opening portion 500 .

[0081] The opening portion 500 has at least one hole on the outer surface of the cone portion 110 that is connected through the ventilation portion 200 , and can be connected to the ventilation hole 210 or the inflow pipe 310 by cutting the outer front end of the cone portion 110 .

[0082] Such opening 500 can supply water to the nasal cavity by inserting a hose that supplies water to the ventilation hole 210 or the inflow tube 310. Moreover, preferably, the water supply hose is located inside the front end of the cone 110 to prevent water from being directly sprayed onto the nasal septum.

[0083] Furthermore, more preferably, at least one opening 500 is formed on the outer surface of the cone portion 110 so that a water supply hose can be inserted and external air can flow into the nasal cavity.

[0084] As mentioned above, although the preferred embodiments of the present invention are described in the detailed description of the present invention, this is only an illustrative description of the most preferred embodiments of the present invention and is not intended to limit the present invention. Moreover, any person skilled in the art of the present invention can make various modifications and imitations without departing from the technical concept of the present invention.

[0085] Therefore, the protection scope of the present invention is not limited to the above-mentioned embodiments, and can be embodied in various forms of embodiments within the scope of the attached invention claims. Moreover, without departing from the main purpose of the present invention required by the invention claims, various ranges that can be deformed by ordinary technicians in the field to which the present invention belongs should also be included in the scope of the invention claims.

Claims

1. A nasal cannula for preventing negative pressure, characterized in that: include: The catheter body is formed by a catheter, the catheter is connected to one end of a shaft, and the shaft is provided with an aspirator, and the aspirator aspirates rhinorrhea or secretions and discharges them to the outside; a cone portion, the diameter of which increases from the front end portion toward the rear end portion of the conduit; an extension portion, the extension portion being in communication with the catheter to form a passage extending from the cone portion, for insertion into the nasal cavity; and The ventilation portion includes an inflow tube and an inflow hole. One end of the inflow tube is located at the front end of the cone portion, and the other end is directed toward one side of the extension portion and penetrates the cross-section of the interior of the extension portion. The inflow hole is bent on one side of the extension portion and penetrates in a manner connected to the other end of the inflow tube, thereby allowing external air to flow into the nasal cavity. When the inflow hole at the rear end of the cone portion is closed, the ventilation portion increases the suction force that causes rhinorrhea or secretions in the nasal cavity to flow into the inner side of the catheter body.

2. The nasal catheter for preventing negative pressure according to claim 1, characterized in that: The air filter comprises an inclined portion, wherein the inclined portion forms an inclined surface inside the front end of the cone portion, thereby reducing the pressure of air sucked from the front end of the cone portion.

3. The nasal catheter for preventing negative pressure according to claim 1, characterized in that: The cone portion includes an opening on an outer surface thereof. The opening has at least one hole communicating with the ventilation portion.

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