KR101871421B1 - Angle and direction settable surgical retractor - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical pulling machine, and more particularly, to a surgical pulling machine capable of adjusting a pulling position and direction of a pulling mouth located inside a patient's body during surgery.
To this end, an angularly and directionally adjustable surgical retractor according to the present invention comprises a retractor body, a retractor for retracting the surgical site inserted into the body, a pulling port connected to one end of the retractor body so as to be adjustable in angle and direction, And a pulling mouth operating part provided at one side of the body for adjusting the angle and direction of the pulling mouth.

Description

[0001] Angle and direction settable surgical retractor [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical pulling machine, and more particularly, to a surgical pulling machine capable of adjusting a pulling position and direction of a pulling mouth located inside a patient's body during surgery.

Generally, in order to facilitate surgery, a tissue or skeleton located inside the human body is pulled to a position where it is easy for surgery to perform surgery.

At this time, a retractor is used as a means for lifting the surgical site such as a tissue or a skeleton, and the site to be towed is pulled.

Such a retractor is manufactured in various forms according to the surgical site and purpose, and is mainly made of a thin and flat spatula, a plate, and a blade so that insertion into the human body is easy and the area for pulling the surgical site is maximized.

  However, if the incision is inconsistent with the area to be trained, it is difficult to change the direction of the retractor, so it takes a lot of time to traction the surgical site and the possibility of emergence such as deteriorating condition of the patient is increased.

In order to solve such a problem, the prior art 1 (Korean Patent No. 10-1218123 surgical pulling apparatus) has a first pull bar fixedly coupled to the handle, a second pull bar formed in a bent form, And the coupling portion connecting the first pulling bar and the second pulling bar is configured to adjust the pressing force between the first pulling bar and the second pulling bar by the turning operation so that the fixing and the angle can be adjusted.

However, in the case of the prior art 1, the angle of the retractor (the second pull bar inserted) can not be adjusted in the state of being inserted into the surgical site, It is difficult to pull the surgical site without damaging other tissues in the operation of narrow surgery sites or obesity patients.

In this case, additional incision may lead to a situation in which the surgical site must be pulled, which causes the incision area of the patient to become wider, resulting in delayed operation time and the patient becoming in an emergency situation.

Prior Art Document 1 (Korean Patent No. 10-1218123)

SUMMARY OF THE INVENTION It is an object of the present invention to provide an artificial retractor capable of adjusting the angle and direction of a pulling sphere from outside a surgical site while the pulling sphere is inserted inside a surgical site The purpose.

According to an aspect of the present invention, there is provided a surgical retractor capable of changing an angle and a direction, comprising: a retractor body; a retractor for retracting a surgical site inserted into a human body, the retractor body including: A pulling mouth connected to the body; And a pulling mouth operating part provided at one side of the pulling body to adjust the angle and direction of the pulling mouth.

Here, the pulling port is connected to a hinge pin inserted into the pulling body in a width direction thereof, and the angle and direction of the pulling hole are adjusted by the hinge pin.

In this case, the pull tab manipulation unit is disposed in the longitudinal direction of the retractor body, and one end of the actuating wire is connected to the hinge pin to rotate the hinge pin. And a wire operating part connected to the other end of the operating wire to pull or release the operating wire.

And the wire operating portion includes a dial-shaped head portion disposed on one lateral side of the retractor body, and an operating shaft integrally formed with the head portion and inserted into the retractor body so as to penetrate in the width direction thereof, And both end portions thereof are connected to the hinge pin and the operation shaft, respectively.

The operation wires are fixed to both left and right sides of the hinge pin and the operation shaft, and the wire fixing holes are formed on both sides of the hinge pin and the operation shaft, .

The pull tab manipulation unit may further include a pull tab fixing unit that fixes the pull tab so that the pull tab is not rotated when the pull tab is completely adjusted in angle and direction.

Here, the pulling-hole fixing means includes a plurality of fixed keys protruding radially at regular intervals along the circumferential direction on the bottom surface of the head portion, and a plurality of fixed keys corresponding to the fixed keys on the side surface of the pull- And the angle and direction of the pulling mouth can be adjusted or fixed while the fixed key is inserted into or released from the fixing groove.

The pulling-back manipulation unit further includes a restoring spring which is installed inside the retractor body so as to surround the lower outer side of the actuating shaft so that the wire actuating part always faces downward, and at the end of the actuating shaft, And a support member for supporting the support member.

Here, the other end of the retractor body is further provided with a handle gripped by the operator's hand.

Meanwhile, the operating wire may be installed inside the retractor body or may be installed on the outer surface of the retractor body. If the operating wire is installed on the outer surface of the retractor body, And a cap is further provided.

The operating wire includes a wire portion that is a means for transmitting the movement of the pulling-hole manipulation portion to the hinge pin side, a wire portion provided at both ends of the wire portion, one end portion is fitted in a wire fixing hole of a pulling- And a fixing member that is fitted in the wire fixing hole of the pull tab operating portion and supports the wire portion.

According to a second embodiment of the present invention, the pulling tool has a plurality of divided structures, and the divided pulling tools are individually adjustable in angle and direction.

Here, the pull tab operating portion is provided with a plurality of individual pull tabs for adjusting the divided pull tabs, and each pull tab manipulating portion is provided in a pull tab located immediately behind the pull tab for adjusting the angle and direction, The angle and the direction are adjusted.

The surgical pulling machine having the angle and direction adjustable according to the embodiment of the present invention has the following effects.

First, the angle of the traction sphere can be freely adjusted according to the intention of the operator in the state where the traction sphere is inserted into the surgical site. If the surgical operation of the narrow surgery site or obesity patients, The surgeon can pull the surgical site.

Secondly, the direction and angle of the pulling mouth can be adjusted by a simple operation of holding the operating part of the pulling mouth by the hand while turning the pulling mouth inside the surgical site, so that the operation is easy and the operation time can be shortened accordingly.

Third, when inserting a pulling ball into a surgical site, it can be inserted into a straight line and the angle of the tip of the pulling ball can be adjusted when reaching the surgical site to be pulled. There is an effect that damage can be prevented.

Fourth, since the angle and direction of the pulling mouth can be adjusted in multiple stages, it is possible to respond more actively to various operations.

1 is an overall perspective view of an angularly and directionally adjustable surgical retractor according to a first embodiment of the present invention;
2 is an exploded perspective view of an angularly and directionally adjustable surgical retractor according to a first embodiment of the present invention;
FIG. 3 is a cross-sectional view showing an internal structure of an angularly and directionally adjustable surgical puller according to a first embodiment of the present invention; FIG.
FIG. 4 is an exploded perspective view showing a state in which a cap structure for facilitating installation and replacement of an operating wire in an angle and direction adjustable surgical pulling machine according to the first embodiment of the present invention
FIG. 5A is a cross-sectional view showing a state in which the angular and directionally adjustable surgical pull-off device according to the first embodiment of the present invention is adjusted in a straight line to enter a surgical site
FIG. 5B is a cross-sectional view showing a state in which the angle and direction of the distal end of the pulling mouth are adjusted in a state in which the angular and directionally adjustable surgical pulling device according to the first embodiment of the present invention reaches the surgical site to be pulled
6 is an overall perspective view of an angularly and directionally adjustable surgical retractor according to a second embodiment of the present invention;
FIG. 7A is a cross-sectional view showing a state in which the angular and directionally adjustable surgical pull-off device according to the second embodiment of the present invention is adjusted in a straight line to enter a surgical site
FIG. 7B is a cross-sectional view showing a state in which an angle and direction of a multi-stage pulling mouth is adjusted in a state where an angle and direction adjustable surgical pulling device according to a second embodiment of the present invention reaches a surgical site to be pulled

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retractor for a surgical operation, and more particularly, to a retractor capable of easily adjusting the angle and direction of a pulling ball inserted into a human body from outside the human body, .

Hereinafter, embodiments of the present invention having such features will be described in detail with reference to the accompanying drawings.

FIG. 1 is an overall perspective view of an angularly and directionally adjustable surgical retractor according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view of an angularly and directionally adjustable surgical retractor according to a first embodiment of the present invention, 3 is a cross-sectional view illustrating an internal structure of an angularly and directionally adjustable surgical retractor according to a first embodiment of the present invention.

1 to 3, the present invention mainly comprises a retractor body 100, a pulling mouth 200, a pulling mouth operating part 300, and an operating wire 310.

At one end of the retractor body 100, a pulling tool 200 is inserted into the human body to pull the surgical site, and at the other end, a handle 400 is provided for the operator to grasp the hand. A pulling mouth operating part 300 is coupled to one side of the retractor body 100 at a position adjacent to the handle 400.

At this time, a hole having a very small diameter is formed along the longitudinal direction of the retractor body 100 at both sides of the inside of the retractor body 100 to form a wire operation groove 110 for providing a space in which the operation wire 310 is operated do.

In addition, at one end of the retractor body 100, a pulling hole coupling hole 120 through which a hinge pin 211 provided in the pulling hole 200 is rotatably fitted is formed.

At the other end to which the pulling mouth 200 is coupled, a manipulation portion coupling hole 130 in which the pulling mouth manipulating portion 300 is inserted from the upper portion to the lower portion and is coupled to the handle 400 is formed in the vertical direction .

At this time, a lower portion of the operation portion coupling hole 130 has a diameter larger than that of the operation portion coupling hole 130 and is formed in a step with the operation portion coupling hole 130, so that the pull port manipulation portion 300 is elastically A spring mounting portion 170 on which a restoring spring 330 to be provided is provided is formed.

A plurality of jaws are formed in the upper portion of the operation portion coupling hole 130 so that the pulling mouth manipulation portion 300 is rotated by rotation of the pulling mouth manipulation portion 300, A fixing groove 140 for fixing and supporting the fixing member 140 is formed.

At this time, the fixing grooves 140 are inclined so that the fixing key 321a, which is integrally arranged at the lower part of the head part 321 of the pulling-out operating part 300, is softened by the elasticity of the restoring spring 330 And is fixed.

The pulling tool 200 includes a hinge pin 211 that is rotatably fitted in and coupled to the pulling hole coupling hole 120 in the retractor body 100 and a hinge pin 211 formed on both sides of the hinge pin 211, And a wire fixing hole 211a to which one end portion of the wire fixing hole 310 is fixedly installed.

The hinge pin 211 is rotatably provided in the pull hole 200 while being fixed to the pull hole 200. Accordingly, the pulling tool 200 is coupled to the retractor body 100 so as to be rotatable back and forth about the hinge pin 211.

Two pairs of operating wires 310 are coupled to the wire fixing holes 211a formed on both sides of the hinge pin 211. [ Therefore, the pulling tool 200 is rotated by the force that pulls the operating wire 310 from both sides of the hinge pin 211.

In the embodiment of the present invention, the pulling tool 200 is shown as a straight line, but the present invention is not limited thereto. The pulling tool 200 may be formed in various shapes such as a curved shape or a curved shape.

The pull tab manipulation unit 300 allows the pull tab 200 to be maintained at a fixed angle even when an excessive force is applied during operation.

The pulling mouth operating unit 300 includes an operating wire 310 connected to the hinge pin 211 and the pulling mouth operating unit 300 so as to rotate the hinge pin 211, A restoring spring 330 that applies an elastic force to the wire actuating part 320 so that the wire actuating part 320 can always be brought into close contact with the wire actuating part 320 and a resilient spring 330 that supports the elasticity of the restoring spring 330 And a support member (340).

The operating wire 310 includes at least two pairs of wires, a wire portion 311 made of a rigid material to provide a supporting force for adjusting the direction and angle of the pulling tool 200 and maintaining an angle, One end of the wire portion 311 is engaged with and fixed to the wire fixing hole 211a of the pulling hole 200 and the other end of the wire is connected to the wire And a fixing member 312 to be fitted and fixed to the fixing hole 322a.

Accordingly, when the pull tab manipulation unit 300 is rotated, the pull tab 200 is rotated by the actuating wire 310, so that the angle and direction of the pull tab 200 inserted in the surgical site can be adjusted and fixedly supported do.

The wire operation part 320 is provided with a circular dial-type head part 321 which can be operated by hand. On the bottom surface of the head portion 321, a plurality of fixed keys 321a protruding outwardly are formed radially at regular intervals along the circumferential direction.

An operation shaft 322 extending downwardly and extending downward is fitted to the retractor body 100 at the center of the head part 321. The operation shaft 322 is formed with a wire fixing hole 322a into which the actuating wire 310 is fitted.

A restoring spring 330 which is fitted to the spring mounting portion 170 of the retractor body 100 and exerts an elastic force to pull the pulling mouth operating portion 300 downward is provided at a lower outer side of the operating shaft 322 .

A supporting member 340 for supporting the elastic force of the restoring spring 330 is provided at a lower end portion of the actuating shaft 322 provided with the restoring spring 330.

As a result, the pulling-trunnion operating unit 300 has an elastic force to be pulled downward at all times, and the head portion 321 of the pulling-trunnion operating unit 300 is rotated upward to adjust the angle. The fixed key 321a at the bottom of the head part 321 and the fixing groove 140 of the retractor body 100 are fitted and fixed in the key and keyway structure. Accordingly, the pulling opening 200 is maintained in a fixed state even when a large force is externally applied in a state where the angle adjustment is completed.

A handle is further provided on the other end of the retractor body 100 to which the pulling tool 200 is coupled. The handle 400 has a curved shape that is easy to grasp with the hand, so that the handle 400 can be used while stably holding the retractor during surgery.

4 is an exploded perspective view showing a state in which a cap structure for facilitating installation and replacement of an operating wire is provided in an angularly and directionally adjustable surgical retractor according to a first embodiment of the present invention.

Referring to FIG. 4, an angularly and directionally adjustable surgical puller according to the first embodiment of the present invention may include a cap structure for facilitating wire replacement.

To this end, a cap coupling groove 150 is formed on the outside of the wire operation groove 110 so as to be recessed inward along the entire length of the wire operation groove 110. The cap coupling groove 150 is formed in the wire operation groove 110, A cap 160 for protecting the wire operation groove 110 is fitted and engaged to prevent the wire from entering or malfunctioning.

The cap coupling groove 150 is formed with a bolt hole 151 spaced vertically and spaced apart from the cap 160 in a bolt coupling hole 151 having a cap 160 fitted therein and spaced apart in a longitudinal direction 161 are fitted together by the bolts.

Preferably, the bolt is in the form of a plate bolt to prevent bolts from protruding outside the cap 160.

Hereinafter, the operation of the retractor according to the first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 5A is a cross-sectional view illustrating a state in which the angular and directionally adjustable surgical pullers according to the first embodiment of the present invention are aligned in a straight line to enter a surgical site.

Referring to FIG. 5A, when the surgical retractor adjustable in angle and direction according to the first embodiment of the present invention, the pulling tool 200, the retractor body 100, and the handle 400 are aligned in a straight line And enters the surgical site in a fixed state.

At this time, the pulling opening 200 is formed by inserting the fixed key 321a formed at the lower part of the wire operation part 320 and the fixing groove 140 formed at the upper part where the pulling mouth operating part 300 of the pulling body 100 is coupled And the operation wire 310 is fixedly supported so that the pair of operation wires 310 support the hinge pin 211 of the pulling mouth 200 in such a state that the hinge pin 211 of the pulling mouth 200 is not rotated from both sides, But enters a state in which a straight line is formed as a whole.

This makes it possible to easily enter the pulling mouth 200 without damaging other organs or soft tissues to the surgical site of a narrow surgical field or an obese patient.

FIG. 5B is a cross-sectional view illustrating a state in which an angle and direction of an end portion of a pulling mouth is adjusted in a state where an angle and direction adjustable surgical pulling device according to a first embodiment of the present invention reaches a surgical site to be pulled.

Referring to FIG. 5B, the present invention adjusts the angle or direction of the pulling mouth 200 to move the pulling mouth 200 from the incision for surgery to a position where the operation is required.

When the head part 321 of the wire operation part 320 is lifted and rotated, the operation wire 310 coupled to the wire operation part 320 is pulled in the rotating direction, The pin 211a is rotated in the direction in which the operating wire 310 is pulled to pull the operating wire 310 provided on the other side.

When the wire operation part 320 is released by the operation of the wire operation part 320 when the pulling opening 200 reaches a desired angle, the elasticity of the restoration spring 330 causes the fixed key of the wire operation part 320 321a are fitted into the fixing grooves 140 of the retractor body 100, the angle adjustment of the pulling tool 200 is completed.

 This makes it possible to easily pull the surgical site in a state where the pull tab 200 is bent toward the surgical site.

In the second embodiment of the present invention, the surgical puller adjustable in angle and direction is implemented so that the pulling tool 200 can be divided into multiple stages to individually adjust the angle and direction.

The second embodiment of the present invention differs from the first embodiment in the structure in which the angle and direction of the pull ball can be adjusted in multiple stages, but the other configurations are the same. Therefore, only the divided structure of the pulling tool 200 will be described below. In the second embodiment of the present invention, an explanation will be given of an embodiment in which the pull tab 200 is divided into two stages for convenience of explanation.

Figure 6 is an overall perspective view of an angle and direction adjustable surgical retractor in accordance with a second embodiment of the present invention.

Referring to FIG. 6, the pulling mouth 200 according to the second embodiment of the present invention includes a first pulling mouth 210 and a second pulling mouth 220, So that the surgical site can be trained.

To this end, the pulling tool 200 of the direction-adjustable surgical pulling machine according to the second embodiment of the present invention includes a first pulling unit 200, one end of which is coupled to the side of the pulling body 100, And a second pulling mouth 220 coupled to the other end of the first pulling mouth 210 to adjust the direction and angle to the surgical site.

The first pulling tool 210 is rotatably fitted in the pulling hole coupling hole 120 of the retractor body 100 at one end thereof and has a wire fixing hole A wire operation groove 110 for providing a space for operating the operation wire 310 is formed on both sides of the inside of the first pulling mouth 210.

In addition, a second pulling mouth coupling hole 212 to which the second pulling mouth 220 is coupled is provided at the other end coupled to the retractor body 100.

The hinge pin 211 of the first pulling mouth 210 is fixed to the first pulling mouth 210 and is rotatable with respect to the pulling mouth coupling hole 120 of the pulling body 100 Respectively.

A pair of operating wires 310 are coupled to the wire fixing holes 211a formed at both sides of the hinge pin 211 so that the second pulling tool 220 is pulled by the force pulling the operating wires 310 from both sides. .

At this time, the first pulling tool 210 is fixed in a form in which the operating wire 310 is simultaneously pulled from both sides, so that it can be maintained at a fixed angle even when an excessive force is applied during the operation.

The first pulling tool 210 is further provided with a pulling mouth manipulation part 300 according to the first embodiment of the present invention.

One end of the second pulling mouth 220 is rotatably fitted and coupled to a second pulling mouth coupling hole 212 provided in the first pulling mouth 210.

At this time, the hinge pin 221 fixed to the second pulling mouth 220 and rotatably fitted in the second pulling mouth coupling hole 212 is provided.

On both sides of the hinge pin 221, a wire fixing hole 221a is formed in which the operating wire 310 is fitted and coupled.

Accordingly, the angle and direction of the second pulling tool 220, which is rotatably engaged with the other end of the first pulling tool 210 coupled to the retractor body 100, can be freely adjusted.

Hereinafter, the operation of the retractor according to the second embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 7A is a cross-sectional view illustrating a state in which the angular and directionally adjustable surgical pull-off device according to the second embodiment of the present invention is aligned in a straight line to enter a surgical site.

Referring to FIG. 7A, an angularly and directionally adjustable surgical retractor according to a second embodiment of the present invention includes a first pulling mouth 210, a second pulling mouth 220, a retractor body 100 ), And the handle 400 is fixed in a straight line to enter the surgical site.

At this time, the fixed key 321a formed at the lower portion of the head portion 321 of the wire operation portion 320 individually provided in the first pulling mouth 210 and the retractor body 100 and the fixing groove 140 are sandwiched And the operating wire 310 is fixedly supported so that the pair of operating wires 310 are connected to both the hinge pin 211 of the first pulling mouth 210 and the hinge pin 221 of the second pulling mouth 220 So that it does not move while entering the surgical site, and enters in a state in which it is in a straight line as a whole.

Thus, the first pulling tool 210 and the second pulling tool 220 can be easily inserted into the surgical site of a narrow surgical site or an obese patient without damaging other organs or soft tissues.

FIG. 7B is a cross-sectional view illustrating a state where an angle and direction of a multi-stage pulling mouth is adjusted in a state in which an angle and direction adjustable surgical pulling device according to a second embodiment of the present invention reaches a surgical site to be pulled.

Referring to FIG. 7B, after moving the first pulling tool 210 and the second pulling tool 220 from the incision for surgery to a position where surgery is required, the first pulling tool 210 and the second pulling tool 220 are adjusted.

At this time, when the head portion 321 of the wire operation portion 320 is held and rotated by the hand, the operating wire 310 coupled to the pulling mouth manipulation portion 300 is pulled in the rotating direction, The hinge pin 211 of the first pulling tool 210 and the hinge pin 221 of the second pulling tool 220 are rotated in the pulling direction of the operating wire 310 to pull the operating wire 310 provided on the other side.

When the head portion 321 of the wire operation portion 320 is released when the first pulling mouth 210 and the second pulling mouth reach a desired angle by the operation of the wire operation portion 320, The adjustment of the first pulling tool 210 and the second pulling tool 220 is completed by fixing the fixed key 321a to the fixing groove 140. [

As a result, the first pulling mouth 210 and the second pulling mouth 220 can be easily pulled by supporting the surgical site in a state where the second pulling mouth 220 is bent toward the surgical site.

100: Retractor body 110: Wire operating groove
120: pull hole fitting hole 130: operating part fitting hole
140: fixing groove 150: cap coupling groove
151: bolt coupling hole 160: cap
161: bolt hole 170: spring mounting portion
200: pulling port 210: first pulling port
211: Hinge pin 211a: Wire fixing hole
212: second pull hole fitting hole 220: second pull hole
221: Hinge pin 221a: Wire fixing hole
300: pulling base operating section 310: operating wire
311: wire portion 312: fixing member
320: wire operating part 321: head part
321a: fixed key 322: operating axis
322a: wire fixing hole 330: restoring spring
340: support member 400: handle

Claims (13)

A retractor body (100);
A retractor 200 inserted into the human body for retracting the surgical site, the retractor 200 being adjustably connected to one end of the retractor body 100 in an angle and direction; And
A pull tab operating part 300 provided at one side of the retractor body 100 to adjust the angle and direction of the pull tab 200; / RTI >
Characterized in that the pulling tool (200) comprises a plurality of divided structures, the divided pulling tools being individually adjustable in angle and direction.
The method according to claim 1,
The pull tab 200 is connected to a hinge pin 211 inserted in the width direction of the retractor body 100 so that the angle and direction of the hinge pin 211 are adjusted with respect to the axis. And direction adjustable surgical retractors.
The method of claim 2,
The pull tab manipulation unit 300 includes an actuating wire 310 disposed at a longitudinal direction of the retractor body 100 and connected to the hinge pin 211 at one end thereof to rotate the hinge pin 211; And
And a wire operation part (320) connected to the other end of the operation wire (310) to pull or release the operation wire (310).
The method of claim 3,
The wire operation part 320 includes a dial-shaped head part 321 placed on one lateral side of the retractor body 100 and a wire-shaped head part 321 integrally formed with the head part 321, And an operation shaft (322) inserted into the hinge pin (211) so as to penetrate the hinge pin (211) and the operation shaft (322). The operation wire (310) Surgical Retractor.
The method of claim 4,
The operation wires 310 are fixed to both the left and right sides of the hinge pin 211 and the actuating shaft 322 and are fixed to both sides of the hinge pin 211 and the actuating shaft 322, Wherein a wire fixing hole (211a) (322a) into which a pair of operating wires (310) are inserted and fixed is formed, respectively.
The method of claim 5,
The pulling mouth manipulation unit 300 further includes a pulling mouth fixing means for fixing the pulling mouth 200 so that the pulling mouth 200 is not rotated in a state where the pulling mouth 200 is completely adjusted in angle and direction. Direction adjustable surgical retractor.
The method of claim 6,
The pulling hole fixing means includes a plurality of fixed keys 321a radially protruding from the lower surface of the head portion at regular intervals along the circumferential direction and a plurality of fixed keys 321a formed on the side surface of the pulling body 100 on which the head portion 321 is located. The fixed key 321a is formed with a plurality of grooves corresponding to the fixed key 321a so that the fixed key 321a is inserted into or released from the fixed groove 140, And the direction is adjustable or fixed.
The method of claim 7,
The pulling mouth manipulating part 300 includes a restoring spring 330 which is installed inside the retractor body 100 so as to surround the lower outer side of the actuating shaft 322 and gives a restoring force such that the wire actuating part 320 always faces downward, , And a support member (340) for supporting a lower surface of the restoration spring (330) is provided at an end of the operation shaft (322).
The method of claim 8,
And a handle (400) gripped by an operator's hand is further provided at the other end of the retractor body (100).
The method of claim 3,
The operation wire 310 may be installed inside the retractor body 100 or may be installed on the outer surface of the retractor body 100 and may be installed on the outer surface of the retractor body 100 Further comprising a cap (160) for preventing the operation wire (310) from being exposed.
The method of claim 7,
The operation wire 310 includes a wire portion 311 which is a means for transmitting movement of the pulling mouth manipulation portion 300 to the hinge pin 211 side and a wire portion 311 provided at both ends of the wire portion 311, The other end of the fixing member is inserted into the wire fixing hole 322a of the pulling-out operating unit 300 and is supported by the fixing member 312). ≪ / RTI >
delete The method according to claim 1,
Each of the pull tab operating portions 300 is provided in a pull tab located immediately behind the pull tab to be angularly and directionally adjusted, Wherein the angle and direction of the pulling ball located at the distal end of the catheter are adjusted.

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