JP3077478U - Transparent hood for electronic endoscope - Google Patents

Abstract

(57) [Summary] (With correction) [Problem] A good visual field can be secured at the time of observation, inspection, treatment, and surgery without eclipsing the viewing angle of an electronic endoscope by a hood, and it can be safely inserted and performed. Provided is a cylindrical transparent hood A to be attached to the distal end of an electronic endoscope 1, wherein the depth D of the hood A is reduced. The internal thread 3 is screwed into the male thread 2 at the distal end of the electronic endoscope 1 so as to be longer than the shortest observation depth D0 of the electronic endoscope 1 by a predetermined length L, and the outer surface of the distal end. Tapered part
Even if a load is applied to the distal end of the electronic endoscope 1, the hood A does not separate from the distal end of the electronic endoscope 1 and can be easily attached and detached. Hypopharynx
Fine observation of the observation target in the cervical esophagus region is possible,
The viewing angle of the electronic endoscope 1 is not shaken by the
A good visual field can be secured during observation, inspection, treatment, and surgery, and can be safely inserted, and the performance of the electronic endoscope 1 can be enhanced.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a transparent hood for an electronic endoscope, and more particularly to a hood structure.

[0002]

[Prior art]

 Conventional hoods are used for fiberscopes, and no hood is made for an electronic endoscope of the hypopharynx / cervical esophagus. Also, there is no hood for an electronic endoscope in consideration of the depth of the hood and the observation depth. The conventional hood for fiberscope has the following problems.

[0003] In a fiber scope with a detachable hood, if a load is applied to the distal end of the fiber scope during inspection, treatment, or surgery, the hood falls into a living body, and the inspection is performed. , Treatment and surgery may not be performed safely. In the case of a fiber scope whose hood cannot be removed, it is not easy to disinfect the hood or the distal end of the fiber scope after inspection, treatment and surgery. Since the depth of the hood and the observation depth of the fiberscope were not considered, the observation target (mucous membrane, foreign body, etc.) in the hypopharynx / cervical esophagus region, which is a closed cavity, was not Observation of the object to be observed was not possible if it adhered to the end. With the structure in which the hood was attached to the fiber scope, it was not possible to perform a fine observation of an observation target such as a mucous membrane or a foreign substance. The hood widened the viewing angle of the fiber scope, and the field of view was narrow during observation, inspection, treatment, and surgery.

[0004]

[Problems to be solved by the invention]

 This invention was devised in order to solve the problems described in the prior art, and even if a load was applied to the distal end of the electronic endoscope, the hood was detached from the distal end of the electronic endoscope. It is easy to attach and detach, and enables fine observation of the object to be observed in the hypopharynx and cervical esophagus area, which is a closed cavity, without obstructing the viewing angle of the electronic endoscope by the hood. The purpose is to provide a transparent hood for electronic endoscopes that can secure a good visual field during examination, treatment, and surgery, can safely insert the electronic endoscope, and enhance the performance of the electronic endoscope. is there.

[0005]

[Means for Solving the Problems]

 The transparent hood for an electronic endoscope of the present invention is a cylindrical transparent hood to be attached to the tip of the electronic endoscope, and the depth of the hood is determined by the depth of the electronic endoscope. A female screw which is longer than the shortest observation depth by a predetermined length and which is screwed into a male screw at the distal end of the electronic endoscope is formed on the inner surface of the base, and a tapered taper is provided on the outer surface of the distal end. It is characterized by the following.

[0006]

[Embodiment of the invention]

 An example of an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a cylindrical transparent hood A to be attached to the distal end of an electronic endoscope 1 is provided. The depth D of the negative electrode is longer than the shortest observation depth D0 of the electronic endoscope 1 by a predetermined length L.

[0007] The predetermined length L is such that an object to be observed, such as a mucous membrane or a foreign body in the hypopharynx / cervical esophagus region, is closely attached to the tip of the hood A or within the tip of the hood A during examination, treatment, or surgery. It is a numerical value empirically determined from many clinical cases, and is about 0.5 to 3 mm.

[0008] Even if an observation target such as a mucous membrane or a foreign substance comes close or intrudes to the predetermined length L, it does not enter the shortest observation depth D0 of the electronic endoscope 1, so that the observation target closely or intrudes. Can be observed clearly and minutely. If the depth D of the hood A is too long, operability in observation, inspection, treatment, and surgery is impaired.

On the inner surface of the base of the hood A, a female screw 3 screwed to the male screw 2 at the tip of the electronic endoscope 1 is formed.

Therefore, the hood A can be easily attached to and detached from the distal end of the electronic endoscope 1, and the distal end of the electronic endoscope 1 and the hood A can be easily and reliably disinfected. I can do it. Moreover, since the screwing method is used, the joining is reliable, and the hood A does not fall into the living body even if a load is applied to the distal end of the electronic endoscope during inspection, treatment, or surgery.

As shown in FIG. 1, a tapered taper 4 is provided on the outer surface of the tip of the hood A to facilitate insertion into the hypopharynx / cervical esophagus. In addition to preventing damage to the mucous membrane of the inner cavity of the patient, excessive pressure is not applied to the surrounding organs, and the electronic endoscope 1 can be safely inserted.

[0012] By making the hood A transparent, the viewing angle of the electronic endoscope 1 can be secured without a shading by the hood A, and a good visual field can be secured, and the electronic endoscope 1 can be safely inserted. .

[0013]

[Effect of the invention]

 Since the present invention is configured as described above, it has the following effects. The attachment of the electronic endoscope to the distal end is made by screwing, so it is securely joined. Even if a load is applied to the distal end of the electronic endoscope during inspection, treatment, or surgery, Inspection, treatment, and surgery can be performed safely without the hood falling into the body. Since the hood is simple and easy to remove, it is easy to disinfect the hood and the tip of the electronic endoscope after inspection, treatment, and surgery. Since the depth of the hood is longer than the shortest observation depth of the electronic endoscope, even if the object to be observed in the hypopharynx / cervical esophagus region is close to or intrudes into the tip of the hood, the observation object Observation of an object can be performed clearly and fine observation can be performed. A tapered tape is provided on the outer surface of the tip of the hood, so that it can be easily inserted into the hypopharynx and cervical esophagus, preventing damage to the mucous membrane of the lumen of the hypopharynx and cervical esophagus. The electronic endoscope can be safely inserted without applying excessive pressure to the surrounding organs.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of the invention.

[Explanation of symbols]

 Reference Signs List 1 electronic endoscope 2 male screw at distal end of electronic endoscope 3 female screw 4 tapered tape D depth of hood D0 shortest observation depth of electronic endoscope L predetermined length

Claims (1)

[Utility model registration claims] 1. A cylindrical transparent hood (A) mounted on a distal end portion of an electronic endoscope (1), wherein a depth (D) of the hood (A) is determined by the electronic endoscope. The shortest observation depth (D) of the endoscope (1)
0), and a female screw (3) screwed into a male screw (2) at the distal end of the electronic endoscope (1) is engraved on the inner surface of the base. A transparent hood for an electronic endoscope, characterized in that a tapered taper (4) is provided on the outer surface.