JP2006122268A - Protecting nose - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protecting nose which maintains humidity using moisture contained in exhalation and protects an elderly person from dyspnea. <P>SOLUTION: This protecting nose 1 is used for assisting respiration. The protecting nose 1 has a flow straightener 20 in the connecting section of a conduit 5 extending from a respiration air supplying apparatus 2. The flow straightening body has a flow straightener body 21 made of a moisture absorption member having a plurality of microscopic vent holes. The flow straightener body 21 of the protecting nose 1 is made of a wavy paper pulp tape 21c shaped in a roll. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a protective nose. More specifically, the present invention relates to a protective nose suitable for a respiratory assistance device used for CPAP (Continuous Positive Airway Pressure) therapy suitable for treatment of sleep apnea syndrome, NPPV (Non-invasitive Positive Pressure Ventilation) therapy suitable for ventilation failure, and the like.

  Conventionally, a respiratory assistance device having a nasal mask that covers the nose is used for the treatment of sleep apnea syndrome and the treatment of ventilation failure.

  However, in a respiratory assistance device having a conventional nasal mask, air of constant pressure is supplied from a blower into the nasal mask through a conduit, but the air is supplied into the nasal mask without being properly dispersed. Therefore, there are problems that the mucous membrane and cilia in the nasal cavity are damaged to impair the humidity control function in the nasal cavity and damage the blood vessels on the inner wall of the nasal cavity. In order to solve this problem, Patent Document 1 proposes a respiratory assistance device having a humidifying means. However, in the proposed respiratory assistance device, a nasal mask is caused by a change in room temperature. There is another problem that condensation occurs inside and inside the hose.

In addition, there is also a problem that elderly people whose nasal muscles are aging cannot block their nasal passages due to the wind pressure of air supplied into the nasal mask. In other words, although it is a respiratory assistance device, there is also a problem that it causes breathing difficulty.
Japanese Patent Laid-Open No. 10-179746

  The present invention has been made in view of the problems of the prior art, and aims to provide a protective nose that makes it possible to maintain humidity by utilizing moisture contained in exhaled breath and does not cause difficulty in breathing for the elderly. Yes.

  The protective nose of the present invention is a protective nose used for breathing assistance, comprising a nasal mask and a rectifier disposed at a connection portion between the nasal mask and a conduit from a breathing air supply device. The fluid has a rectifier body composed of a hygroscopic member provided with a large number of fine ventilation holes.

  In the protective nose of the present invention, it is preferable that the rectifying body is a roll formed of a corrugated tape, a sponge, or a hygroscopic sol-gel body.

 In the protective nose of the present invention, the tape is preferably made of paper pulp.

  Furthermore, in the protective nose of the present invention, it is preferable that the rectifier is detachably provided.

  Therefore, the protective nose of the present invention is provided in a respiratory assistance device.

  According to the protective nose of the present invention, since moisture contained in exhaled breath is absorbed by the rectifier body, when the inside of the nasal mask dries, the absorbed moisture evaporates in the nasal mask. The humidity control function, the mucous membrane in the nasal cavity, and cilia are not likely to be damaged.

  Further, according to the protective nose of the present invention, since the air supplied into the nasal mask is dispersed by the rectifier, an excellent effect is obtained that the nasal cavity is not blocked and breathing cannot be performed. It is done.

  Furthermore, according to the protective nose of the present invention, it is possible to obtain an excellent effect of preventing condensation from flowing into the nasal mask and protecting breathing, which are likely to occur when a humidifier / heater is used in combination.

  Hereinafter, although the present invention is explained based on an embodiment, referring to an accompanying drawing, the present invention is not limited only to this embodiment.

  FIG. 1 shows a respiratory assistance device having a protective nose according to an embodiment of the present invention.

  As shown in FIG. 1, the respiratory assistance device K includes a protective nose 1 and a respiratory air supply device 2 as main components, and CPAP (Continuous Positive) for so-called sleep apnea syndrome (SAS). Airway Pressure (Continuous Positive Pressure Breathing) therapy and non-invasitive positive pressure ventilation (NPPV) therapy that does not rely on endotracheal intubation for chronic respiratory failure. The

  The protective nose 1 includes a nasal mask 1a and a rectifying body 20, and is attached to the face (head) H of the user M using a strap 4 so as to cover the nose.

  As shown in FIG. 2, the nasal mask 1a has a generally triangular bowl shape made of a hard resin, and a cushion 1c made of a soft resin is provided so as to extend the edge 1b contacting the periphery of the nose of the patient M. Further, a membrane (thin film) 1d for preventing gas leak made of a soft resin in the form of a film is provided along the edge 1b so as to cover the upper side of the cushion 1c. A nose receiving space 10 for receiving the nose N of the user M is formed by the nose mask 1a and the cushion 1c.

  The nasal receiving space 10 has an internal pressure higher than the atmospheric pressure by air sent through the conduit 5 by the breathing air supply device 2 so as not to be in an apnea state even when the airway is blocked during sleep or the like. Has been.

  In the breathing air supply device 2, the amount of air blown is adjusted so that the internal pressure of the nose receiving space 10 becomes a predetermined pressure. In addition, since the thing used for the well-known respiratory assistance apparatus can be used suitably for the air supply apparatus 2 for respiration, the detailed description of the structure is abbreviate | omitted.

  The connecting portion 11 that connects the nasal receiving space 10 and the conduit 5 is provided with a rectifying body 20 to prevent high-pressure air from the conduit 5 from being directly injected into the nasal receiving space 10.

  As shown in FIG. 3 (a), the rectifying body 20 has a rectifying body main body 21 made of a laminating tape 21c formed by laminating a corrugated tape 21b made of paper pulp to a tape 21a made of paper pulp. It is assumed that the attachment portion 22 is detachably attached to the connection portion 11 so as to be supported inside the nose receiving space 10. As shown in FIG. 3B, the rectifier body 21 has a large number of fine air holes 21d from the upstream side to the downstream side, and ensures desired air permeability. Is done. Further, since the rectifying body main body 21 is made of paper pulp, the rectifying body main body 21 absorbs moisture in the exhaled breath and maintains a certain amount thereof, and when the humidity in the nose receiving space 10 is reduced. Also, it has the ability to maintain the humidity of the nasal receiving space 10 moderately by evaporating the retained water.

  The fixture 22 has a holding part 22a for holding the rectifying body 21 and a tubular fitting part 22b fitted to the conduit 5 so as to form a path for flowing gas through the holding part 22a. It has the part 11 and the latching | locking part 22c latched detachably. Although not shown, the attachment 22 is provided with a circular cross-shaped cover to prevent the rectifier body 21 from protruding into the nose receiving space 10.

  As shown in FIG. 4, the locking portion 22 c is a claw-like protrusion, and is inserted into the conduit 5 through a groove 5 b provided in the opening 5 a in the connection portion 11 of the conduit 5. By rotating the rectifying body 20 until the locking portion 22c comes into contact with the stopper 5c, the locking portion 22c engages with the step 5d of the conduit 5 and the rectifying body 20 is locked with the connecting portion 11.

  Thus, in the protective nose 1 of the present embodiment, the rectifying body main body 21 is disposed in the nose receiving space 10 that receives the nose N of the user M, and passes through the vent hole 21d of the rectifying body main body 21. Comfortable air is supplied to the nasal receiving space 10, and the inside of the nasal receiving space 10 is appropriately maintained by the humidity control function of the rectifying body 21, so that the inner wall of the nasal cavity and cilia in the nasal cavity are not damaged.

  Further, since air is rectified and supplied from the conduit 5 to the nasal receiving space 10 without direct injection, the nasal cavity is not blocked by the wind pressure of the supply air.

  Furthermore, since the rectifier 20 is detachably attached, hygiene management is easy.

  As mentioned above, although this invention has been demonstrated based on embodiment, this invention is not limited only to this embodiment, A various change is possible.

  For example, in the present embodiment, the rectifying body main body 21 is a roll of a bonding tape 21c formed by laminating a wave-shaped tape 21b, but the rectifying body main body 21 is not limited to this. For example, a sponge or a sol-gel body manufactured to have desired breathability and hygroscopicity may be used.

  Further, in this embodiment, the rectifier body 21 has a flat surface facing the nose receiving space 10 and the holding portion 22a of the fixture 22 is cylindrical, but as shown in FIG. The holding portion 22a of 22A has a conical shape that is widened, and the rectifier body 21A is formed in a mortar shape in which the central portion is recessed on the opposite side to the nose receiving space 10, and the bottom surface of the holding portion 22a and a spacer (not shown) A slight gap may be provided. Then, by forming the holding portion 22a and the rectifying body main body 21A in this manner, the risk of interference between the rectifying body main body 21A and the nose N can be reduced. In that case, the round cross-shaped cover is also shaped like a mortar.

  The present invention can be applied to various respiratory assistance devices having a nasal mask.

It is the schematic which shows the structure of the respiratory assistance apparatus which has a protective nose which concerns on one Embodiment of this invention. It is sectional drawing which shows the principal part detail of the protection nose. It is a 2nd page figure of a rectifier body, and (a) shows the front view of a pasting tape, and (b) shows the elements on larger scale of a rectifier body. It is a top view which shows an example of the latching mechanism of a rectifier. It is a figure equivalent to FIG. 1 of the modification of this invention.

Explanation of symbols

K Respiratory Device N Nose 1 Protective Nose 1a Nose Mask 1c Cushion 5 Conduit 10 Nasal Receptive Space 20 Rectifier 21 Rectifier Body 21a Paper Pulp Tape 21b Paper Pulp Corrugated Tape 21c Adhesive Paper Tape 21d Vent 22 Attachment

Claims (5)

A protective nose used for breathing assistance, comprising a nasal mask and a rectifier disposed at a connection portion of the nasal mask with a conduit from a breathing air supply device;
The protective nose characterized in that the rectifying body has a rectifying body main body made of a hygroscopic member provided with a large number of fine ventilation holes.   2. The protective nose according to claim 1, wherein the rectifying body is a roll formed of a corrugated tape, a sponge, or a hygroscopic sol-gel body.  The protective nose according to claim 2, wherein the material of the tape is paper pulp.   The protective nose according to claim 1, wherein the rectifier is detachably provided.   A respiratory assistance device comprising the protective nose according to any one of claims 1 to 4.

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