JPH0373124A - Endoscope - Google Patents

Abstract

PURPOSE:To obtain the shape or angle of an angle corresponding to the use purpose without changing variously the kind of a nodal ring and the arrangement of the nodal ring by changing variously the number of pieces of spacers placed between each nodal ring, respectively. CONSTITUTION:Plural nodal rings 2 are coupled to each other by arranging in series in the scope axial direction 1, and also, between each of guide links 4 formed in the nodal ring 2 in an angle wire 3 inserted through successively to these plural nodal rings 2, spacers 5 of the number of pieces selected suitably in accordance with the use purpose are installed, respectively, and when an angle wire 3 is drawn, the spacer 5 is inserted and held between each of the guide links 4, and the bend angle of an angle part can be controlled. Accordingly, by adjusting the number of pieces of arrangement of the spacers 5 installed between each of the guide links 4, an angle at which the angle part can be bent comes to different, therefore, an angle shape or an angle angle shown by the angle part can be varied without increasing the kind of the nodal rings 2, and without varying a shape of the nodal ring 2.

Description

[Detailed Description of the Invention] [Keystone of the Invention] (Industrial Application Field) The present invention relates to an endoscope used for observing the inside of a subject's body, vagina, etc. The present invention relates to an improvement in the cross-passing of an angle portion which is easily arranged and is formed by connecting a plurality of joint rings arranged in series in the axial direction of a scope.

(Prior Art) In general, this type of 82&i is one that bends from a part near the tip of the scope depending on whether the target area to be inspected is a helmet, or depending on the shape during the bending process. Or, depending on whether the angle is to be bent from the part of the angle base that is far from the tip of the scope, the angle shape or angle setting at the angle part can be changed so that the observation ability can be maintained at a good N even if the purpose is different. required to do so.

Therefore, conventionally, by selecting the type of node ring and the arrangement configuration of the node ring, the angle shape or angle of the angle portion can be changed by setting.

(vR problem to be solved by the invention) However, if the type of nodal ring and the arrangement of the nodal ring can be selected from various types according to the purpose of use described above, the type of nodal ring and the arrangement of the nodal ring are complicated. Become diverse.

Therefore, in the conventional case, within? When configuring the angle portion in 5211, there was a problem in that the number of manufacturing steps and manufacturing cost increased.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide angles that can be shaped to suit the purpose of use without changing the type of joint rings or the arrangement of the joint rings. An object of the present invention is to provide an endoscope having a section.

[Structure 1 of the Invention (Means for Solving the S! Problem)] In order to achieve the above object, the present invention provides a plurality of node rings disposed near the tip of the scope and arranged in series in the scope axis direction. In an endoscope equipped with an angle section formed by mutually connecting two or more joints, the angle section changes the angle shape or angle angle between the joint rings of the angle wire that is sequentially inserted through the plurality of joint rings. It is characterized by having a spacer installed therein.

(Operation) With the configuration according to the present invention, by varying the number of spacers arranged between each node ring, the angle The angle shape or angle indicated by the section can be changed.

Therefore, the angle portion can be bent according to the purpose of use, without changing the type of node rings or the arrangement of the node rings, simply by increasing or decreasing the number of spacers arranged.

(Example) Fig. 1 is a configuration diagram showing the housing structure of the angle part in an endoscope according to an embodiment of the present invention, and Fig. 2 is a perspective view showing the outline of the external appearance of the endoscope. .

As shown in FIG. 1, the endoscope of this embodiment has a plurality of joint rings 2 which are arranged in series in the scope axis direction 1 and connected to each other, and which are sequentially inserted through the plurality of joint rings 2. A number of spacers 5 suitably selected according to the purpose of use are installed between the guide rings 4 formed on the joint ring 2 on the angle wire 3, and the spacer 5 is placed between the guide rings 4 formed on the joint ring 2 on the angle wire 3, and the spacer 5 is placed between the guide rings 4 formed on the joint ring 2 on the angle wire 3. A housing structure is obtained for the angle portion 7 disposed nearby. Note that as the spacer 5, a ring-shaped thin plate, beads, or the like can be used. Further, in FIG. 2, 8 is a guiding part, 9 is an operating part, and 10 is a universal cord, by which an endoscope as shown in FIG. 2 is connected to an endoscope apparatus main body (not shown). Ru.

As mentioned above, by configuring the housing structure of the angle portion 7 as shown in FIG. 1, the spacer 5 is inserted between the guide rings 4 as shown in FIG. 3 when the angle wire 3 is pulled. Therefore, the bending angle of the angle portion 7 can be regulated.

Therefore, by adjusting the number of spacers 5 installed in mutual layers of the guide ring 4, the angle at which the angle portion 7 can be bent differs, so there is no need to increase the types of the joint rings 2, and the number of joint rings 2 The angle shape or angle of the angle portion 7 can be changed without changing the shape.

For example, even with an angle that shows the same 210° angle, depending on the purpose of use, there are cases where you want to bend it at the base as shown in Figure 4 (A), and cases where you want to bend it at the tip as shown in Figure 4 (8). However, according to this embodiment, this can be handled without changing the type or shape of the node ring 2.

That is, if it is bent at the base as shown in Figure 4 (8),
On the distal end side of the scope, the number of spacers 5 arranged is increased to increase the ratio of regulating the bending angle, and on the base side, the number of spacers 5 arranged is reduced to adjust the ratio of regulating the bending angle. Just do it.

On the other hand, if you want to bend it at the tip as shown in the same figure (B),
On the tip side of the scope, the number of spacers 5 arranged is reduced to ease the rate of regulating the bending angle, and on the base side, the number of spacers 5 arranged is increased to increase the rate of regulating the bending angle, thereby adjusting the bending angle. Just do it.

In addition, in the conventional method of changing the type and shape of the nodal ring, for example, when bending at the tip as shown in Figure 4 (8), the nodal ring with a large angle is placed on the distal end of the scope, and the nodal ring with a large angle is placed on the base side. A node ring with a small angle is set at the center with Q) Angle between the widths σ) 1 ring - g - cost &1. Therefore, if 1d low e also uses 3 types of node rings, it will not be <E if 0shi 4"-", but if one type of node ring r is supported as in this example, it will be manufactured by comparing 4 types. 1- The number and manufacturing cost have increased.

E Effects of the Invention 1 As described in Explanation I5, the ladle congratulatory theory of this embodiment (, well, 8 in the angle soi 17 inserted sequentially into a plurality of node rings)
The number of spells n1lI' set between the 8 ring phases n, L2>C, i' angle part showing the angle shape Nori 9', including the angle Kakutun in the divine transformation, 6 y.)'' (゛To some extent, node ring σ) Increase the number of types - 4 Komot tough, also node ring σ
) Angle part 1ii' that can be adjusted to 16 times for your convenience without changing the shape! It is something that Makizeruko ε is good at.

According to the present invention, the observation ability of CUs with different targets can be maintained in terms of pitching and hitting.In order to obtain a configuration in which the observation ability can be maintained in terms of pitching and hitting, it is possible to use the following number 7': lzu production IX] 21-
It is possible to write the words less systematically.

[Brief explanation of drawings]

Figure 1 shows an example in which this invention 111 can be applied. 52 to the mirror. The housing structure of the angle part f73 in FIG. 5)
1.: State diagram showing the situation, Fig. 4 is the angle part σ) 1
A schematic diagram showing the bulge mode in reverse, at m°C. . 1...S: 1-P axis direction 2...Node ring 3...
・Angle soi 174...Guide ring;]...Space→j 6...S:]-79G end 7...Angle part O...Leading out part

Claims (1)

[Claims] (1) In an endoscope equipped with an angle section disposed near the distal end of the scope and formed by connecting a plurality of nodal rings arranged in series in the axial direction of the scope, the plurality of nodal rings are sequentially connected to each other. An endoscope characterized in that a spacer is installed between the node rings of the angle wire inserted therethrough, so that the angle shape or angle indicated by the angle portion can be changed by changing the number of spacers arranged.