JPH0731765Y2 - Endoscope insertion part - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an insertion portion of an endoscope, and particularly in a so-called parent-child type endoscope, a parent endoscope (hereinafter referred to as “motherscope”).
(Hereinafter, referred to as a "baby scope") insertion tube used by being inserted into a guide channel.

[Prior Art] This type of baby scope is used by being inserted into a guide channel of a mother scope like forceps or other treatment tools. Therefore, push the baby scope from the mouth side into the guide channel of the mother scope,
It is used by protruding the tip of the baby scope from the tip of the guide channel. In such a parent-child type endoscope, conventionally, a means is provided for informing the operator whether or not the bending portion connected to the distal end of the flexible tube of the baby scope has completely protruded from the guide channel of the mother scope. It wasn't done.

[Problems to be Solved by the Invention] As described above, in the past, the operator could not accurately grasp whether or not the curved portion of the baby scope completely protruded from the guide channel of the mother scope. Therefore, the bending operation of the baby scope may be performed while the bending portion of the baby scope is inside the guide channel of the mother scope. Then, unreasonable force is applied to the bending device of the baby scope, the operation wire etc. is damaged,
On the contrary, it sometimes damaged the internal components of the mother scope.

In addition, if a raising stand is provided inside the tip of the mother scope to guide the baby scope, moving the raising stand when the curved portion of the baby scope is near the raising stand causes the baby scope to move. There was a case that the curved part of the was damaged.

Further, clinically, there is a risk that the tip of the baby scope may be excessively protruded from the guide channel of the mother scope and the mucous membrane in the body cavity of the patient may be damaged.

This invention eliminates such conventional drawbacks, and in a parent-child type endoscope, a safe endoscope insertion that does not cause damage to equipment or human damage when inserting a baby scope The purpose is to provide the department.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the insertion portion of the endoscope of the present invention is formed in a guide channel provided in another endoscope so as to be insertable and removable. In the insertion portion of the endoscope, in which a bendable bendable portion is connected to the distal end of the flexible tube by remote control, the bendable portion and the flexible portion are formed on the outer surface near the connection portion between the bendable portion and the flexible tube. It is characterized in that a sign for visually recognizing the vicinity of the connecting portion of the pipe is provided.

[Operation] When the insertion portion is inserted into the guide channel provided in another endoscope, by visually observing the marker approaching the mouth of the guide channel through the other endoscope, It is possible to reliably determine the time when the curved portion completely comes out from the tip of the guide channel.

[Example] An example will be described with reference to the drawings.

FIG. 1 shows a state in which the baby scope 1 is inserted through a guide channel 101 of a mother scope 100 which is another endoscope.

In the figure, 102 is a flexible tube that constitutes the insertion portion of the mother scope. 103 is an operation unit. Reference numeral 104 is a bending portion that can be remotely bent by rotating the operation knob 105 provided on the operation unit 103. Reference numeral 106 denotes a tip end main body having a built-in objective optical system and the like, which is a so-called side view type for observing the side of the tube axis. 107 is a raising base that is remotely rocked by an operation lever 108 provided on the operation unit 103 to control the protruding direction of the baby scope 1. 109 is an eyepiece.

The base insertion opening 110 of the guide channel 101 is provided so as to project below the operation portion 103, and the guide channel 101
The tip projection port 111 is formed on the side of the tip body 106 in the same direction as the observation direction of the objective optical system. A raising stand 107 is arranged immediately inside the tip protrusion port 111.

On the other hand, 2 is a flexible tube that constitutes the insertion portion of the baby scope 1. 3 is an operation unit. Reference numeral 4 denotes a bending portion that can be remotely bent by rotating the operation knob 5 provided on the operation portion 3. When the bending operation knob 5 is connected to the tip of the flexible tube and the bending operation knob 5 is rotated as indicated by arrow A, the bending portion 4 bends as indicated by arrow B. Numeral 6 is a tip body with a built-in objective optical system. 7 is an eyepiece. As described above, the insertion portion of the baby scope 1 has the flexible tube 2 and the curved portion 4 connected to the tip thereof, and can be inserted into and removed from the guide channel 101 of the mother scope 100. It is formed so that it can.

An index 8 is attached to the outer surface near the connecting portion between the bending portion 4 and the flexible tube 2. The index 8 is, for example, the flexible tube 2
And a paint applied with a different color from the outer circumference of the curved portion 4, and a mark that allows the visual determination to be made near the connecting portion between the curved portion 4 and the flexible tube 2,
Anything will do.

In the insertion portion of the endoscope of the present invention thus configured, when the insertion portion of the baby scope 1 is inserted into the guide channel 101 of the mother scope 100, the index 8 appears in the observation visual field of the mother scope 100. . As a result, the curved portion 4 of the baby scope 1 has the protrusion 111 of the guide channel 101.
Can be confirmed to have been completely projected from.

FIG. 2 shows an example of index formation, and shows the vicinity of the connecting portion between the flexible tube 2 and the bending tube 4 of the baby scope 1. Reference numeral 25 is a metal connecting tube that connects the flexible tube 2 and the bending portion 4. 21 is a spiral tube. Reference numeral 22 is a mesh tube, and the outer surface of the mesh tube 22 is integrally covered with the mesh tube 22 by heat fusion or the like.

Further, 41 is a node ring rotatably connected to each other by rivets. Reference numeral 42 is a mesh tube, and the outside thereof is covered with an outer cover 43 made of, for example, fluororubber and having a high elasticity. The end portion is fixed by winding a thread from the outside, and an adhesive 24 having a color different from that of the outer skins 43 and 23 is applied to the outer side. Therefore, the adhesive 24 serves as the index 8.

FIGS. 3 and 4 exemplify the position of the index,
In FIG. 3, the index 8 is formed on the flexible tube 2 side of the connecting portion, and in FIG. 4, the index 8 is formed on the bending tube side of the connecting portion. As described above, the index may be located on either side as long as it is near the connecting portion between the flexible tube portion 2 and the bending portion.

FIG. 5 shows an example in which a so-called front-viewing endoscope is used as the mother scope 200, and thus any type of mother scope may be used.

[Advantage of the Invention] According to the insertion portion of the endoscope of the present invention, it is possible to reliably determine the time when the curved portion of the baby scope is completely projected from the guide channel of the mother scope, and thus the bending of the baby scope is performed. While the part is in the guide channel, the bending operation is performed to damage the device, and there is no possibility that the baby scope is excessively projected from the guide channel and the inner wall of the body cavity is damaged.

[Brief description of drawings]

1 is a side view of an embodiment of the present invention, FIG. 2 is a sectional view showing an example of index formation, FIGS. 3 and 4 are side views showing examples of index positions, and FIG. 5 is a mother scope. FIG. 8 is a side view showing a state in which a front-viewing type endoscope is used as the above. 1 ... Baby scope (endoscope), 2 ... Flexible tube, 4 ...
… Curved section, 8 …… Indicator (marker), 100 …… Motherscope (other endoscope), 101 …… Guide channel.

Claims (1)

[Scope of utility model registration request] 1. A parent-child endoscope in which a baby scope insertion portion, which is formed by connecting a bendable bendable portion to a distal end of a flexible tube by remote control, is detachably provided in a guide channel of a mother scope. In the part on the distal end side of the insertion portion of the baby scope, only the outer surface in the vicinity of the connecting portion between the bending portion and the flexible tube of the baby scope, the vicinity of the connecting portion between the bending portion and the flexible tube, An endoscope insertion part characterized by being coated with a circumferential index for visual recognition.