JP2001327463A - Operation wire manufacturing machine for endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation wire manufacturing machine for an endoscope capable of easily manufacturing an operation wire in which individual twisting directions of a plurality of elastic wires are reversed to intertwining directions of the wires. SOLUTION: The operation wire manufacturing machine for the endoscope comprises a wire assembling support means 40 for integrally supporting the plurality of the elastic wires 1 at one end side, individual wire support means 20 for individually supporting the wires 1 at the other end side, wire twisting means 14 and 17 for twisting the wires 1 in the same direction around individual axes, and wire intertwining means 11 and 25 for integrally intertwining the wires 1 reversely to the twisting direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope operation wire manufacturing machine for manufacturing an endoscope operation wire made of a stranded wire.

[0002]

2. Description of the Related Art In a treatment instrument for an endoscope, a plurality of elastic wires forming a wire loop or the like are often formed by stranded wires, but a plurality of stranded wires forming an elastic wire are further twisted. By forming the operation wire together, the connecting portion between the wire loop and the operation wire is not thickened and the strength is excellent.
0-70282).

[0003]

However, in order to form such an operation wire, it is necessary to twist each elastic wire in a direction opposite to the twisting direction before twisting a plurality of elastic wires. However, conventionally, there is no such a manufacturing apparatus, and the manufacturing efficiency has been extremely poor, such as individually performing such operations manually.

Accordingly, the present invention provides an operation wire manufacturing machine for an endoscope which can easily manufacture an operation wire in which the twisting direction and the twisting direction of a plurality of elastic wires are reversed. The purpose is to:

[0005]

In order to achieve the above object, an endoscope operating wire manufacturing machine according to the present invention comprises: a wire assembly supporting means for integrally supporting a plurality of elastic wires at one end; Wire individual support means for individually supporting a plurality of elastic wires on the other end side, and wire torsion means for respectively twisting the plurality of elastic wires in the same direction around the axis.
A wire twisting means for twisting a plurality of elastic wires together in a direction opposite to the twisting direction is provided.

[0006] A plurality of elastic wires may be stretched while being pulled in the axial direction by a spring. And a plurality of elastic wires are individually directly connected to the planetary gear shaft of the planetary gear device by the individual wire support means, and the plurality of elastic wires are respectively rotated around the axis by rotating the planetary gears without planetary movement. Twisted in the same direction, the sun gear and the planetary gear of the planetary gear set are relatively fixed and the entire planetary gear set is rotated integrally so that a plurality of elastic wires can be twisted together. Good.

Alternatively, the wire twisting means may be a gear device for rotating the individual wire supporting means in the same direction, and the wire twisting means may be a device for rotating the wire collecting and supporting means.

[0008]

Embodiments of the present invention will be described with reference to the drawings. FIG. 4 shows the entire configuration of the endoscope operation wire manufacturing machine according to the first embodiment of the present invention, in which a plurality of elastic wires 1 made of a stranded stainless steel wire are arranged at one end thereof. Are supported collectively by the wire binding vise 40, and are individually fixed and supported on the wire stopper shaft 20 of the planetary gear device 10 arranged at the other end.

FIG. 3 is a front view of the planetary gear set 10 as viewed from the elastic wire 1 side. FIGS.
It is OB and COB sectional drawing. Planetary gear set 10
A sun gear 14 is integrally connected via a key 13 to a sun gear shaft 12 rotatably disposed at a center axis position of a gear receiver 11 as an entire frame.

A tip portion of a pointed screw 16 screwed into the gear receiver 11 from the side is loosely engaged with a circumferential groove 15 having a V-shaped cross section formed in a large diameter portion of the sun gear shaft 12. Thus, the axial movement of the sun gear shaft 12 is restricted.

The planetary gear 17 meshing with the sun gear 14 is
Four are arranged around the sun gear 14 at 90 ° intervals. However, five or more may be arranged as necessary. Each planetary gear 17 is connected via a key 18 so as to rotate integrally with a planetary gear shaft 19 rotatably supported by the gear receiver 11.

The wire stopper shaft 20 is integrally connected to each planetary gear shaft 19, and the end of each elastic wire 1 is inserted into a wire through hole 21 formed at the axial position of each wire stopper shaft 20. And is pressed and fixed thereto by a manual wire fixing screw 22.

Further, as shown in FIG.
1, the tip of a manual lock screw 25 screwed from the side comes into contact with the circumferential groove 15. When the manual lock screw 25 is tightened, the gear receiver 11 is integrated with the sun gear shaft 12, and the manual lock screw 25 is When loosened, the sun gear shaft 12 becomes freely rotatable with respect to the gear receiver 11.

Returning to FIG. 4, the wire binding vise 40 is arranged so as to be movable in the axial direction of the elastic wire 1 but not to rotate around the axis, and is compressed by the compression coil spring 49 in the direction in which the elastic wire 1 is pulled. Being energized. As a result, each elastic wire 1 is stretched while being pulled in the axial direction.

The sun gear shaft 12 of the planetary gear device 10 is driven to rotate by a motor 50 via a speed reducer 51.
Reference numeral 60 denotes a control unit (for example, a microcomputer or the like) for controlling the rotation state of the motor 50.

With this configuration, first, the manual lock screw 25 is loosened, and as shown in FIG. 4, the motor receiver 50 of the planetary gear device 10 is held by hand or the like so as not to rotate, and the motor 50 is held. Rotate.

Then, each of the plurality of elastic wires 1 is twisted in a direction opposite to the rotation direction of the sun gear shaft 12. Elastic wire 1
Is a stranded wire, each of the elastic wires 1 is further twisted in the same direction as the twisting direction to strengthen the twisting of the elastic wire 1.

As described above, when the elastic wire 1 is further twisted in the twisting direction, the overall length of the elastic wire 1 is shortened. However, the change is absorbed by the compression coil spring 49 being compressed, and the elastic wire 1 No excessive force acts.

Next, the manual lock screw 25 is tightened,
As shown in FIG. 5, when the motor 50 is rotated in the same direction as before, the sun gear 14 and the planetary gear 17
, The gear receiver 11 rotates integrally with the sun gear shaft 12.

As a result, the plurality of elastic wires 1 are twisted. By this operation, each elastic wire 1 is twisted in the opposite direction to the previous step shown in FIG. 4, and the twist added to each elastic wire 1 in the previous step is returned.

Therefore, if the number of twists of each elastic wire 1 and the number of twists of a plurality of elastic wires 1 thereafter are made the same, each elastic wire 1 becomes the original material when twisted. It is in a natural twist state. According to the experiment, a stable stranded wire was obtained by twisting the elastic wire 1 having a length of 2 m 120 times each and then twisting it 120 times in the opposite direction.

In this manner, by rotating the motor 50 in the same direction, a double stranded operating wire can be obtained, and both ends thereof are solidified by brazing or soldering to form a plurality of elastic wires 1. If they are integrated and then set in a free state, twisting and twisting will settle down to a stable state.

FIG. 6 shows an endoscope operating wire manufacturing machine according to a second embodiment of the present invention.
01, around a central gear 114 driven to rotate by
A plurality of peripheral gears 117 meshing therewith are arranged, and a wire stopper shaft 20 for fixing the end of each elastic wire 1 is directly connected to the shaft of the peripheral gear 117. 111 is a fixed frame. Therefore, by turning the first rotary handle 101, each elastic wire 1 is connected to the first rotary handle 10
1 is twisted in the direction opposite to the rotation direction.

The wire binding vise 40 for supporting the plurality of elastic wires 1 collectively is also rotatable by the second rotary handle 201, and
Can be twisted together in the direction opposite to the twisting direction. 211 is a fixed frame.

With this configuration, it is possible to manufacture a double stranded operating wire similar to that of the first embodiment.
Similarly to the first embodiment, a compression coil spring 49 for absorbing the contraction of the entire length of the elastic wire 1 may be disposed in the wire binding vise 40.

It is not always necessary to use a stranded wire as the elastic wire 1 which is the element wire of the operation wire. For example, a single wire made of a stainless steel wire may be used as the elastic wire 1.

[0027]

According to the present invention, a plurality of elastic wires are individually twisted around the axis by wire twisting means in the same direction, and thereafter, one wire is twisted in a direction opposite to the twisting direction by wire twisting means. Because it can be twisted together
It is possible to easily manufacture an operation wire in which the twisting direction and the twisting direction of the plurality of elastic wires are reversed.

[Brief description of the drawings]

FIG. 1 is a sectional view of a planetary gear device according to a first embodiment of the present invention, taken along the line AOB in FIG.

FIG. 2 is a sectional view of the planetary gear device according to the first embodiment of the present invention, taken along the line C-B-B in FIG.

FIG. 3 is a front view of the planetary gear device according to the first embodiment of the present invention.

FIG. 4 is a side view of the operation wire manufacturing machine for an endoscope according to the first embodiment of the present invention in a wire twisting operation state.

FIG. 5 is a side view of a state of a wire twisting operation of the operation wire manufacturing machine for an endoscope according to the first embodiment of the present invention.

FIG. 6 is a side sectional view of an endoscope operation wire manufacturing machine according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elastic wire 10 Planetary gear device 11 Gear receiver (wire twisting means) 12 Sun gear shaft 14 Sun gear (wire twisting means) 17 Planetary gear (wire twisting means) 20 Wire stop shaft (wire individual supporting means) 25 Manual lock screw (wire twisting means) 40 Wire binding vise (wire collective support means) 49 Compression coil spring 50 Motor 101 Rotary handle (wire twisting means) 114 Central gear (wire twisting means) 117 Peripheral gear (wire) Twisting means) 201 Rotating handle (wire twisting means)

Claims (4)

[Claims] 1. A wire assembly supporting means for supporting a plurality of elastic wires collectively at one end, an individual wire supporting means for individually supporting the plurality of elastic wires at the other end, and the plurality of elastic wires. And a wire twisting means for twisting the plurality of elastic wires together in the direction opposite to the twisting direction. Endoscope operation wire manufacturing machine. 2. An endoscope operating wire manufacturing apparatus according to claim 1, wherein said plurality of elastic wires are stretched in a state of being pulled in an axial direction by a spring. 3. The plurality of elastic wires are individually and directly connected to the planetary gear shaft of the planetary gear set by the individual wire support means, and the plurality of elastic wires are rotated only without causing the planetary gears to perform planetary motion. The elastic wires are respectively twisted in the same direction around the axis, and the sun gear and the planetary gear of the planetary gear set are relatively fixed and the entire planetary gear set is integrally rotated to thereby form the plurality of elastic wires. The operation wire manufacturing machine for an endoscope according to claim 1 or 2, wherein the wires are twisted together. 4. The wire twisting means is a gear device for rotating the individual wire supporting means in the same direction, and the wire twisting means is a device for rotating the wire collecting supporting means. 3. The operation wire manufacturing machine for an endoscope according to 2.