JP5577537B2 - Nasal piece for transnasal endoscope - Google Patents

Description

  The present invention relates to a nosepiece for a nasal endoscope used when a nasal endoscope that is inserted nasally is inserted into a nasal cavity.

  It is known to use an oral endoscope for examination and treatment of upper digestive organs such as the esophagus, stomach, and duodenum. However, since an oral endoscope is as thick as about 9 mm in diameter, it tends to cause a pharyngeal reflex (vomiting reflex) when inserted orally, and some people may feel unbearable pain.

  Therefore, in recent years, it has been proposed to use a transnasal endoscope that is smaller and more flexible than the oral endoscope. Since the transnasal endoscope is inserted into the upper digestive organ through the nasal cavity of the subject, the throat reflex hardly occurs and pain can be reduced.

  The route for inserting the transnasal endoscope reaches the middle or lower nasal passage from one of the two outer nostrils through the nasal vestibule, and further reaches the esophagus. Here, the nasal vestibule is a region surrounded by the nasal wing and the nasal septum, and the nasal wing has no cartilage or the like and can be deformed in any direction.

  On the other hand, in the examination using the nasal endoscope, the insertion direction may be changed when the nasal endoscope is inserted, or the posture of the practitioner may be changed during the examination. In such a case, the transnasal endoscope may cause pain to the subject by pressing the nasal wing or the nasal septum or forcibly deforming it. In addition, the pain becomes sharper as the diameter of the nasal endoscope becomes thinner.

  In order to alleviate the pain, a nosepiece that is inserted into the nasal vestibule through the nostril and protects the nasal wing or septum from the transnasal endoscope has been proposed (see, for example, Patent Document 1).

  The nosepiece has a cylindrical member with a length extending from the outer nostril to the inside of the nasal vestibule, and protrudes from the base end of the cylindrical member to the left and right sides, and is locked to the end of the outer nostril. A pair of locking members and a belt connecting the left and right locking members are provided. The nosepiece is fixed in a state in which the cylindrical member is inserted into the outer nostril and is locked to the end of the outer nostril by the locking member by tying the belt to the head of the subject. Is done. And in the said state, the said nasal endoscope is penetrated by the said cylindrical member.

  As a result, according to the nosepiece, it is possible to prevent the transnasal endoscope from pressing the nose wing or the nasal septum or forcibly deforming it, thereby reducing the pain of the subject.

JP 2006-326063 A

  However, by inserting a transnasal endoscope into the nasal cavity, the mucous membrane in the nasal cavity is stimulated to generate liquids such as rhinorrhea and nasal discharge, or the mucous membrane in the nasal cavity is damaged and nasal bleeding may occur. In this case, there is a disadvantage that it is difficult to cope with the nose piece.

  The present invention eliminates such inconvenience, and can easily cope with generation of liquids such as rhinorrhea and nasal discharge and nasal bleeding when a nasal endoscope is inserted into the nasal cavity. It aims at providing the nosepiece for endoscopes.

In order to achieve such an object, a nosepiece for a nasal endoscope of the present invention is provided with a cylindrical member inserted into an nasal passage from an outer nostril, and protruding from a base end portion of the cylindrical member to the side. A pair of locking members that are locked to the ends of the outer nostrils, a belt that connects the both locking members and is secured to the head and fixed to the cylindrical member inserted into the outer nostrils A nosepiece for a nasal endoscope comprising a moisture absorbing member on the outer peripheral side of the cylindrical member and facing the outer nostril of the locking member, and a through hole formed in the moisture absorbing member. The cylindrical member is inserted .

  In the nosepiece for nasal endoscope of the present invention, the cylindrical member is inserted into the nasal passage from the outer nostril, the locking member is locked to the end of the outer nostril, and the belt is attached to the subject. Tie to the head. As a result, the transnasal endoscope nosepiece is fixed in a state where the cylindrical member is inserted into the nasal passage from the outer nostril and is locked to the end of the outer nostril by the locking member. And in the said state, the said nasal endoscope is penetrated by the said cylindrical member.

  In this way, the mucous membrane in the nasal cavity is stimulated to generate fluid such as nasal discharge and nasal discharge, or the mucous membrane in the nasal cavity is damaged and nasal bleeding occurs. At this time, in the nosepiece for nasal endoscope, a moisture absorbing member provided on a surface of the locking member facing the outer nostril is sandwiched between the locking member and an end portion of the outer nostril. ing.

  Therefore, according to the nosepiece for transnasal endoscope, liquids such as nasal discharge and nasal discharge and blood due to nasal bleeding can be absorbed by the moisture absorbing member.

  In order to reduce irritation and damage to the mucous membrane in the nasal cavity, the nosepiece for transnasal endoscope of the present invention is preferably formed from a flexible material such as soft plastic. It can be difficult to insert. Therefore, in the transnasal endoscope nosepiece of the present invention, it is preferable that the cylindrical member includes an inner cylinder member that is detachably mounted on the inner peripheral side. The transnasal endoscope nosepiece can be provided with an appropriate hardness on the cylindrical member by providing the inner cylindrical member on the inner peripheral side of the cylindrical member, and can easily be placed in the nasal cavity. Can be inserted.

  The inner cylindrical member is removed from the cylindrical member after the cylindrical member is inserted into the nasal passage from the outer nostril. Then, instead of the inner cylinder member, the nasal endoscope is inserted through the cylindrical member.

  At this time, in the nosepiece for nasal endoscope of the present invention, the cylindrical member is preferably transparent. Since the cylindrical member is transparent, it is possible to confirm by a video how far the nasal endoscope is inserted when the nasal endoscope is inserted through the cylindrical member.

  On the other hand, if the cylindrical member is transparent, when the transnasal endoscope is inserted through the cylindrical member, nasal hairs in the nasal cavity are displayed, and the subject may feel uncomfortable. Therefore, in the nosepiece for nasal endoscope of the present invention, the cylindrical member may be opaque. The nosepiece for nasal endoscope shows that the nasal hair in the nasal cavity is displayed when the nasal endoscope is inserted into the cylindrical member because the cylindrical member is opaque. Can be prevented.

The perspective view which shows the structure of the nosepiece for transnasal endoscopes of this invention.

  Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

  As shown in FIG. 1, a nosepiece 1 for a nasal endoscope according to the present embodiment includes a cylindrical member 2 and a locking member that protrudes laterally from the base end of the cylindrical member 2. 3a, 3b and a belt 4 for connecting the locking members 3a, 3b.

  The cylindrical member 2 is made of a soft plastic such as polyvinyl chloride, and has a sufficient length to be inserted from the nostril and reach the nasal passage. The cylindrical member 2 may be transparent or opaque. The cylindrical member 2 can be made opaque by, for example, applying an embossing process to the outer peripheral surface. Further, the cylindrical member 2 includes an inner cylinder member 5 that is detachably mounted on the inner peripheral side, and is moderately hardened by the inner cylinder member 5, thereby facilitating insertion into the nasal cavity. Has been. The inner cylinder member 5 is made of, for example, acrylonitrile butadiene styrene, polyvinyl chloride, or the like.

  Moreover, the cylindrical member 2 is provided with a tapered portion 6 at the tip, so that it can be easily inserted into the nasal cavity.

  The locking members 3 a and 3 b are integrally formed with the cylindrical member 2 by the same material as the cylindrical member 2. A sponge 7 as a moisture absorbing member is disposed on the surface of the locking members 3a and 3b facing the outer nostril, that is, the surface on the side provided with the cylindrical member 2. The sponge 7 has a rectangular parallelepiped shape that can close at least the outer nostril into which the cylindrical member 2 is inserted, and the cylindrical member 2 is inserted through a through hole 8 formed in the center.

  The belt 4 is made of a soft material such as polyurethane and is secured to the subject's head. The belt 4 has a protrusion at one end and a plurality of holes along the length of the other end, and the protrusion 4 fits into one of the holes. Using this means, the length can be adjusted and fixed, so that it can be secured to the head of the subject. The nosepiece 1 for transnasal endoscope has a cylindrical member 2 inserted into the nasal passage from the outer nostril by the belt 4 being secured to the head of the subject, and is externally attached by the locking members 3a and 3b. It is fixed in a state of being locked at the end of the nostril.

  Next, the usage method of the nosepiece 1 for transnasal endoscopes shown in FIG. 1 is demonstrated.

  When the nasal endoscope nosepiece 1 is used, first, the inner cylinder member 5 is mounted on the inner peripheral side of the cylindrical member 2, and the sponge 7 is formed on the surface of the locking members 3a and 3b facing the outer nostril. The cylindrical member 2 is inserted into the nasal cavity from the left or right outer nostril of the subject. At this time, since the cylindrical member 2 has the inner cylindrical member 5 mounted on the inner peripheral side, the cylindrical member 2 has a hardness suitable for insertion, and a tapered portion 6 is provided at the tip portion. It can be easily inserted into the nasal cavity and its tip can reach the nasal passage. Since the cylindrical member 2 itself is made of a soft plastic such as polyvinyl chloride as described above, it does not hurt the subject even if it contacts the mucous membrane in the nasal cavity.

  Next, when the tip of the cylindrical member 2 reaches the nasal passage, the belt 4 is turned to the head of the subject in a state where the locking members 3a and 3b are pressed against the outer nostril via the sponge 7. . The length of the belt 4 is adjusted and fixed so that the transnasal endoscope nosepiece 1 is fixed in the nasal cavity, thereby fixing the belt 4 to the head of the subject.

  Then, the inner cylinder member 5 is removed from the cylindrical member 2, and a nasal endoscope (not shown) is inserted through the cylindrical member 2 instead, and examination or treatment is started.

  Here, when the cylindrical member 2 is transparent, when the transnasal endoscope is inserted into the cylindrical member 2, the practitioner can confirm how far the endoscope has been inserted with an image.

  In the case of transnasal endoscopes, unlike oral endoscopes, the subject has a free mouth and can receive examinations or treatment while talking to the practitioner. An image inserted into the digestive organ such as the esophagus through the cylindrical member 2 can also be seen. At this time, if the cylindrical member 2 is transparent, the subject sees an image in his / her nasal cavity and may feel uncomfortable when nasal hair or the like is displayed.

  However, in the nosepiece 1 for a nasal endoscope shown in FIG. 1, the subject does not see an image in his or her nasal cavity such as nasal hair by making the cylindrical member 2 opaque. Therefore, the subject can be examined or treated without psychological discomfort.

  Further, in the examination or treatment with a transnasal endoscope, liquids such as rhinorrhea and nasal discharge may occur along the way, or nasal bleeding may occur. However, in the nosepiece 1 for a nasal endoscope shown in FIG. 1, the sponge 7 is sandwiched between the locking members 3a and 3b and the outer nostril. Will be absorbed by the sponge 7. Therefore, according to the nosepiece 1 for a nasal endoscope shown in FIG. 1, a test | inspection or a treatment can be continued, without requiring a special process with respect to the said liquid and blood.

  In the present embodiment, the sponge 7 is used as the hygroscopic member. However, the hygroscopic member is not limited to the sponge 7 as long as it can absorb the liquid and blood. Examples of the hygroscopic member other than the sponge 7 include woven fabric, non-woven fabric, and paper.

  In the present embodiment, the length of the belt 4 is adjusted and fixed by providing a protrusion at one end of the belt 4 and a plurality of holes along the length at the other end. Although the portion is fitted into one of the holes, the length may be adjusted and fixed by other means. As a means for adjusting and fixing the length, for example, a hook-and-loop fastener may be used.

  DESCRIPTION OF SYMBOLS 1 ... Nosepiece for transnasal endoscopes, 2 ... Cylindrical member, 3a, 3b ... Locking member, 4 ... Belt, 7 ... Sponge.

Claims (4)

A cylindrical member inserted into the nasal passage from the outer nostril, a pair of locking members that protrude laterally from the proximal end portion of the cylindrical member and are locked to the end portion of the outer nostril, and both locking A nosepiece for a nasal endoscope having a belt connected to the head and secured to the cylindrical member in a state where the cylindrical member is inserted into the nostril, and is connected to the outer peripheral side of the cylindrical member. A nose for a nasal endoscope, characterized in that a moisture absorbing member is provided on a surface of the locking member facing the outer nostril, and the cylindrical member is inserted into a through hole formed in the moisture absorbing member. piece.   The nosepiece for a nasal endoscope according to claim 1, wherein the cylindrical member includes an inner cylinder member that is detachably attached to an inner peripheral side.   The transnasal endoscope nosepiece according to claim 1, wherein the cylindrical member is transparent.   The transnasal endoscope nosepiece according to claim 1, wherein the cylindrical member is opaque.

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