JPS6223441Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a measuring instrument for an endoscope.

When observing or treating the inside of a body cavity using an endoscope, it is necessary to measure the diameter of an ulcer, polyp, etc. that is the object of observation. This is to examine treatment measures and confirm the status of treatment, and data will be collected by measuring the actual dimensions of the ulcer, etc.

In order to carry out the above-mentioned measurements, conventionally a measuring tool as shown in FIG. 1 has been used. That is, 1 is a flexible tube such as a spiral, 2 is an operating wire, the rear end of the operating wire 2 is connected to a slidable operating tool 3, and a linear scale member 4 is attached to the tip thereof. When the operating wire 2 is moved by the operating tool 3 to cause the scale member 4 to protrude from the cylindrical body 5, the scale member 4 is bent relative to the cylindrical body 5. Then, such a measuring instrument is inserted into the forceps introduction tube of the endoscope and guided to the tip of the endoscope, and the scale member 4 is pressed against an object such as an ulcer, and this is inserted into the endoscope. I wanted to observe the object using an observation optical system and measure the diameter of the object.

However, according to the above-mentioned prior art, since the scale member extends only in one direction, it often goes out of the field of view when the endoscope is rotated, making it difficult to measure.

The present invention was made to solve the above-mentioned drawbacks, and its purpose is to be able to perform accurate measurements at the center of the field of view of the endoscope, and to precisely correspond to the shape of the object. The object of the present invention is to obtain a measuring instrument for an endoscope that can perform measurements.

In order to achieve the above-mentioned objects, the measuring device for an endoscope according to the present invention is provided with an opening member that expands in both directions by its own elastic force at the tip of an operating wire inserted through a flexible tube. , characterized in that a string-like scale member having scales at predetermined intervals is disposed at the tip of the opening member.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a perspective explanatory view showing an embodiment of the measuring instrument for an endoscope according to the present invention, in which 6 is a flexible tube, 7 is an operating wire, 8 is a sliding body, 9 is a holding part, and 10 is a In the operating tool, 11 is a cylindrical body, 12 is an opening member, and 13 is a scale member.

The flexible tube 6 is made of, for example, a spiral body made of steel wire wound to a constant outer diameter, and the operating wire 7 is inserted into the inside thereof. A sliding body 8 made of synthetic resin or the like is connected to the rear end of the flexible tube 6, and an operating tool 10 with one end of an operating wire 7 engaged is connected to the outside of the sliding body 8. are slidably attached.

On the other hand, a hollow cylinder 11 is attached to the tip of the flexible tube 6, and an opening member 12 and a scale member 13 are attached to the tip of the operating wire 7.

The opening member 12 is made of plate-shaped stainless steel, for example, and when pushed out from the cylinder body 11 by the operating wire 7, it expands in both directions as shown in the figure by its own elastic force, and tensions the scale member 13. Set up The reason why the opening member 12 is made into a plate shape is to avoid the influence of twisting, etc., and the shape of the side surface is arched in order to make it easy to enter and exit the cylindrical body 11.

The scale member 13 is made of, for example, a long-term absorbent synthetic resin string, and has scales at predetermined intervals.
As the scale, it is preferable to draw a white line on a blue background and contrast it with red, which is the color of the inside of the stomach or the like.
Furthermore, the scale member 13 may be bent approximately in the center so that it can be easily stored in the cylindrical body 11 together with the opening member 12.

Next, the operation of the above structure will be explained with reference to FIG. 3. The endoscope measurement device according to the present invention is guided to the distal end 15 through the forceps introduction tube 14 etc. of the endoscope inserted into the body cavity. . Then, an object 17 such as an ulcer is captured in the field of view by the observation optical system 16 of the endoscope, the cylinder 11 and the like are projected from the forceps introduction tube 14, and the rear operating tool 10 is manually operated. The operating tool 1
0 to move the operating wire 7 and open the opening member 1.
2 from the cylindrical body 11, the opening member 12
expands in both directions due to its own elastic force. When the opening member 12 is expanded, the scale member 1 at its tip
3 is stretched. Then, by pressing the scale member 13 against the object 17 and looking through the observation optical system 16, the actual size of the object 17 can be measured. Since the scale member 13 is a string, the object 17
When pressed against the object 17, it can precisely correspond to the shape of the object 17. In addition, since the opening member 12 and the like expand almost evenly around the axial direction of the flexible tube 6, it is easy to position the scale member 13 almost at the center of the field of view.

According to the above-mentioned measuring instrument for an endoscope according to the present invention, an opening member that expands in both directions by its own elastic force is attached to the tip of the operating wire inserted through the flexible tube, and the opening member is expanded in both directions by its own elastic force. By arranging a string-like scale member having scales at predetermined intervals at the tip, the string-like scales can be spread out almost evenly around the axial direction of the flexible tube. It is possible to achieve the significant effect of being able to perform measurements accurately at the center of the field of view and minutely corresponding to the shape of the object.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of the prior art, and FIG. 2 is a
FIG. 3 is a perspective explanatory view showing one embodiment of the endoscope measuring instrument according to the present invention, and FIG. 3 is a schematic explanatory view showing the state of use. 6... Flexible tube, 7... Operating wire, 10... Operating tool, 11... Cylindrical body, 12... Opening member, 13...
...Scale member.

Claims (1)

[Scope of utility model registration request] An opening member that expands in both directions by its own elastic force is attached to the tip of the operating wire that is inserted into the forceps introduction tube of the endoscope, and a string-like scale member having graduations at predetermined intervals is attached to the tip of the opening member. Measurement for an endoscope, characterized in that when the opening member is pushed out from the tip of the forceps introducing tube by sliding the operating wire, the opening member expands and a scale member is stretched between the two tip parts. Ingredients.