KR20230038373A - Surgical medical device - Google Patents

Abstract

According to an embodiment of the present invention, a surgical medical device comprises: a body with an open top and front; a lever rotatably assembled to the body, having a portion exposed at the top of the body, and returning to the restoring force of a first spring when the pressing action of a user is released; a link rotatably assembled on the lever; a slider rotatably assembled to the link and moving backward in proportion to the displacement of the lever due to the link when the lever is pressed; a rocker lever rotatably assembled to the body, passing the slider when the slider moves backward, and adhering to the slider with the restoring force of a second spring to suppress the forward movement of the slider; and a relief button installed in the front of the body and releasing the suppression of the slider from the rocker lever when operated to retreat, and returning to the restoring force of a third spring when the operation of the user is released. In addition, according to an embodiment of the present invention, the surgical medical device is capable of maintaining a deformed shape when no further manipulation is performed after a surgeon deforms a functional part into a desired shape, and as a result, the surgeon who operated the surgical medical device can operate another medical device to perform medical services to reduce the number of people participating in surgery.

Description

Surgical medical device {Surgical medical device}

According to the present invention, during liver resection or gastrectomy or bariatric surgery, a strap, gastric band, or medical thread is threaded to pull the strap, gastric band, or medical thread to a specific body tissue, tow the body tissue itself, or to open an anatomical space. It relates to a surgical medical device used to lift body tissue to secure, mark a specific position of body tissue, and guide a substantial incision line.

In general, when performing liver resection or gastrectomy or bariatric surgery, a strap, gastric band or medical thread is threaded to pull the strap, gastric band or medical thread to a specific body tissue, or the body tissue itself is pulled or an anatomical space is opened. It is necessary to lift the body tissue to secure it, or to mark a specific position of the body tissue to mark a specific position of the body tissue and guide a substantial incision line.

As described above, in order to appropriately expose a region requiring treatment or treatment during a body tissue resection operation, various tissues and organs are required to be pulled and treated during the surgical procedure.

For example, when it is difficult to access internal tissues or the field of view is not secured, traction processing of related tissues is required for surgical processing such as incision or resection of a specific tissue.

Depending on the difficulty and complexity of the operation, the surgeon who handles the surgery and the surgeon or assistant who handles the traction should participate together. .

In addition, in the conventional method, there is a problem in that it is difficult to pull the tissue in various directions.

In addition, in the conventional method, there is a problem in that the function unit does not move according to the surgeon's will or operates incorrectly when the function unit is operated in the surgical medical device to tow the surgical target part of the body tissue or to secure the field of view.

KR 10-1198775 B1 KR 10-2034690 B1 KR 10-2018-0122845 A

The present invention is intended to solve the above problems, and when operating a functional unit of a surgical medical device to tow a surgical target area of a body tissue or to secure a field of view, a functional unit can be conveniently operated by a surgeon with one hand. An object of the present invention is to provide a surgical medical device that can operate accurately.

In addition, another object of the present invention is to enable a surgeon to maintain the deformed shape when no additional manipulation is performed after deforming the functional part into a desired shape, and to change the shape of the functional part to an initial shape according to the will of the surgeon. An object of the present invention is to provide a surgical medical device capable of returning.

A medical device for surgery according to an embodiment of the present invention for achieving the above technical problem includes a body 10 with an open top and front; A lever 20 rotatably assembled to the body 10, partially exposed on the upper portion of the body 10, and returned by the restoring force of the first spring 71 when the user's pressing action is released; a link 30 rotatably assembled to the lever 20; a slider 40 rotatably assembled to the link 30 and retracting in proportion to the displacement of the lever 20 when the lever 20 is pressed; It is rotatably assembled to the body 10, and when the slider 40 moves backward (B), it passes through the slider 40 and adheres to the slider 40 with the restoring force of the second spring 72. a rocker lever (50) for suppressing the forward movement (C) of the slider (40); and a relief that is installed in the front of the body 10 and releases the suppression of the slider 40 from the rocker lever 50 when a retracting operation is performed, and returns to the restoring force of the third spring 73 when the user operation is released. button 60; includes

In addition, a surgical medical device according to an embodiment of the present invention includes a shaft installed in front of the body and formed of a tube; a rod having one end connected to the slider and the other sliding inside the shaft; a moving band having one end fixed to the rod and the other sliding on the shaft; a stay band fixed to the end of the shaft opposite to the body; a plurality of node blocks through which the moving band passes, fixed to the stay band, and spaced apart from each other; and a head installed at the ends of the moving band and the stay band and having a hole or a slit therein. may further include.

In addition, in the surgical medical device according to an embodiment of the present invention, the moving band and the stay band are formed in a rectangular shape in cross section, and when viewed in cross section, the long sides of the moving band and the long sides of the stay band are arranged in parallel, The moving band and the stay band may be limited and bent in a direction orthogonal to a long side of the moving band.

In addition, in the medical device for surgery according to an embodiment of the present invention, the slider has a first saw-tooth portion formed at a portion in contact with the rocker lever, and the rocker lever has a second saw-tooth portion at a portion in contact with the slider. When the slider moves backward, the second sawtooth portion passes over the first sawtooth portion, and when the slider moves forward, the first sawtooth portion engages with the second sawtooth portion to limit movement. .

In addition, in the medical device for surgery according to an embodiment of the present invention, the rocker lever seesaws around a portion installed on the lever, contacts the relief button from the opposite side to the second sawtooth portion, and the relief button A first inclined surface is formed on a surface in contact with the first inclined surface, and the first inclined surface may have an acute angle (a) of 18 degrees or more and 20 degrees or less with respect to the operating direction of the relief button.

Details of other embodiments are included in the detailed description and drawings.

In the surgical medical device according to an embodiment of the present invention, a strap, gastric band, or medical thread is threaded through a strap, gastric band, or medical thread to pull the strap, gastric band, or medical thread to a specific body tissue during liver resection or gastrectomy or bariatric surgery. function of a medical device for operation, such as towing a target part of an internal tissue, lifting an internal tissue to secure a field of view and securing an anatomical space, marking a specific position of an internal tissue and guiding an actual incision line. At this time, there is an effect that the function unit can operate accurately according to the operation of the surgeon.

In addition, in the surgical medical device according to an embodiment of the present invention, after a surgeon deforms a functional part into a desired shape, the deformed shape can be maintained when no additional manipulation is performed. Since the doctor can perform medical treatment by manipulating other medical devices, the number of people participating in the operation can be reduced.

In addition, in the medical device for surgery according to an embodiment of the present invention, a surgeon conveniently transforms a functional part into a desired shape with one hand and changes his/her hand while holding the medical device for surgery as needed during a surgical procedure. The deformed shape of the functional part can be quickly and accurately restored to the initial shape easily and easily through a relief button without changing the position where the surgical medical device is currently held by the surgeon.

1 is a diagram for explaining a medical device for surgery according to an embodiment of the present invention.
2 to 5 are views for explaining the handle part in the medical device for surgery according to an embodiment of the present invention, FIG. 2 is a view showing an exploded state, FIG. 3 is a view showing an assembled state, and FIG. 4 is a cross-sectional view And, Figure 5 is a cross-sectional view showing the main configuration extracted.
6 is a view for explaining functional parts of a medical device for surgery according to an embodiment of the present invention, in which (a) is a perspective view, (b) is a plan view, and (c) is a plan view. It is a cross-sectional view, and FIG. 6(d) is a cross-sectional view of the node block.
7 to 11 are views for explaining the operation of a medical device for surgery according to an embodiment of the present invention, where (a) of each drawing is a view showing a handle and (b) of each drawing is a view showing a functional part. am.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are shown by way of example to aid understanding of the present invention, and it should be understood that the present invention may be variously modified and practiced differently from the embodiments described herein. However, when it is determined that a detailed description of a known function or component related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description and specific illustration thereof will be omitted. In addition, the accompanying drawings may not be drawn to an actual scale in order to aid understanding of the present invention, but the sizes of some components may be exaggerated.

Meanwhile, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.

On the other hand, terms to be described later are terms set in consideration of functions in the present invention, and since they may vary according to the intention or custom of the producer, the definitions should be made based on the contents throughout this specification.

Like reference numbers designate like elements throughout the specification... .

As shown in FIG. 1, a medical device for surgery according to an embodiment of the present invention may be configured to include a handle part and a functional part.

The handle part and the functional part may be configured by being connected to the shaft 80 . The handle part may include the body 10 and the lever 20, and the functional part may include the moving band 100, the stay band 110, the node block 120, and the head 130. .

The handle portion may be a portion that a user grips with a hand, and the functional portion may be a portion that penetrates the body and performs a function while contacting human tissue.

Hereinafter, a medical device for surgery according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6 . 1 is a diagram for explaining a medical device for surgery according to an embodiment of the present invention. 2 to 5 are views for explaining the handle part in the medical device for surgery according to an embodiment of the present invention, FIG. 2 is a view showing an exploded state, FIG. 3 is a view showing an assembled state, and FIG. 4 is a cross-sectional view And, Figure 5 is a cross-sectional view showing the main configuration extracted. 6 is a view for explaining functional parts of a medical device for surgery according to an embodiment of the present invention, in which (a) is a perspective view, (b) is a plan view, and (c) is a plan view. It is a cross-sectional view, and FIG. 6(d) is a cross-sectional view of the node block.

A surgical medical device according to an embodiment of the present invention may include a body 10, a lever 20, a link 30, a slider 40, a rocker lever 50, and a relief button 60. there is.

As shown in FIGS. 2 and 3 , the body 10 may be provided in a shape with an open top and front. The body 10 may be provided in two, and the two bodies 10 are formed in a shape symmetrical to each other, and combining the two bodies 10 may form one completed body 10.

The body 10 may be formed by protruding first to fourth shafts 11 to 14, a spring pocket 15 may be formed at the bottom, and a button pocket 16 may be formed at the front.

The lever 20 may be rotatably assembled to the body 10, a part may be exposed on the upper part of the body 10, and when the user's pressing action is released, the first spring 71 You can come back with resilience.

In addition, as shown in FIG. 2, the lever 20 may be provided in two, and the two levers 20 are formed in a shape symmetrical to each other, and combining the two levers 20 into one completed lever 20 ) can be achieved.

The lever 20 has a first boss 22 formed on one side, and the first boss 22 can be assembled to the first shaft 11 of the body 10, whereby the lever 20 is formed on the body ( 10) can rotate about the first shaft 11.

In addition, the lever 20 may be formed by protruding the fifth shaft 24 as shown in FIG. 2 .

The first spring 71 adopts a torsion spring and can be installed on the third shaft 3, one side of the first spring 71 touches the body 10 and the other side touches the lever 20 ) can be reached. Accordingly, when the user grabs the body 10 and the lever 20, the first spring 71 can be compressed, and when the user's pressing action is released, the lever 20 is lifted with restoring force.

The link 30 is rotatably assembled to the lever 20 . The link 30 has a second boss 32 formed on one side and assembled to the fifth shaft 24. In addition, a third boss 34 may be formed on the other side of the link 30 .

The slider 40 is rotatably assembled to the link 30, and more specifically, the slider 40 may be connected to the third boss 34 through a pin shaft.

As a result, when the lever 20 is pressed, the link 30 descends, the link 30 is in an inclined position, and the slider 40 cannot move in the direction in which the lever 20 is pressed, so that the link 30 moves the slider 40 backward (B).

At this time, the slider 40 retracts in proportion to the displacement when the lever 20 is pressed.

On the other hand, when the forward movement C of the slider 40 is not inhibited and there is no pressing action on the lever 20, the first spring 71 pushes up the lever 20, and the lever 20 ) pulls the link 30, and the link 30 moves the slider 40 forward (C).

The rocker lever 50 is rotatably assembled to the body 10 . In more detail, a fifth boss 52 is formed on the rocker lever 50, and the fifth boss 52 is assembled with the second shaft 12 of the body 10. That is, the rocker lever 50 may seesaw around the second shaft 12 .

The rocker lever 50 passes the slider 40 when the slider 40 moves backward, and comes into close contact with the slider 40 with the restoring force of the second spring 72 to move the slider 40 forward. suppresses

The second spring 72 may be installed on the fourth shaft 14, one side of the second spring 72 touches the body 10 and the other side touches the rocker lever 50, 2 When the spring 72 acts as a restoring force, the rocker lever 50 comes into close contact with the slider 40.

The first and second springs 71 and 72 are one example in which torsion springs are employed among numerous spring types, and can be replaced with leaf springs, coil springs, and the like.

The relief button 60 may be installed in a button pocket 16 formed on the front of the body 10, and may be operated by pulling the relief button 60 as if pulling a trigger of a gun. A sixth shaft 62 may be formed on the relief button 60 , and a third spring 73 may be installed on the sixth shaft 62 .

When the user manipulates the relief button 60, the relief button 60 moves backward in the operating movement direction A.

When the relief button 60 is operated to retreat, the locker lever 50 releases the suppression of the slider 40, and when the user operation is released, it can be restored by the restoring force of the third spring 73.

As shown in FIG. 2, the body 10 has a spring pocket 15 formed on one side of the lower part, and as shown in (a) of FIG. 4, the third spring 73 may be accommodated and aligned.

In the medical device for surgery according to an embodiment of the present invention, a functional unit of the medical device for surgery can be approached and operated in order to tow a target area of a body tissue for surgery or to secure a field of view, and the functional unit can add a function according to the operation of a surgeon. There is an effect that can work correctly.

To elaborate on this, the operation of the functional unit can be bent according to the degree of depression of the lever 20, and the functional unit can be unfolded by manipulating the relief button 60.

Hereinafter, operational effects of the medical device for surgery according to an embodiment of the present invention will be described with reference to FIGS. 7 to 11 . 7 to 11 are views for explaining the operation of a medical device for surgery according to an embodiment of the present invention, where (a) of each drawing is a view showing a handle and (b) of each drawing is a view showing a functional part. am.

7 shows an initial state in which nothing is manipulated in the medical device for surgery according to an embodiment of the present invention.

The lever 20 protrudes out of the surface of the body 10, and the slider 40 is disposed on the right side with reference to FIG. 7, and this state is a forward state.

The rocker lever 50 is in close contact with the slider 40, and the relief button 60 is in an advanced state and does not act on the lever 50.

As shown in FIG. 8 , when the user holds the handle and presses the lever 20 , the slider 40 is moved backward (B) while the link 30 is switched from an erect posture to a lying posture. When the slider 40 moves backward (B), the rocker lever 50 does not interfere and the relief button 60 maintains its initial position.

The slider 40 retracts the rod 90 while retracting, and the posture of the head 130 in the functional unit may be changed according to the retraction of the rod 90 .

It is possible to stop at an arbitrary position while pressing the lever 20, and in this case, the rocker lever 50 holds the slider 40 so that the slider 40 cannot move forward (C), whereby the head 130 in the functional part ) can maintain the deformed posture.

That is, even if the surgeon releases his hand from the handle part, the head 130 of the functional part can be maintained in a state in which the head 130 of the functional part is deformed into a desired shape, and thus the surgeon can perform other medical procedures using other medical devices.

9 is a state in which the lever 20 is pressed more deeply compared to FIG. 8 . For example, if the head 130 of the functional unit is deformed at an angle of 45 degrees in FIG. 8 , the head 130 of the functional unit is It may be deformed at an angle of 90 degrees.

8 and 9, the head 130 of the functional unit is expressed to show 45 degrees and 90 degrees, but the surgical medical device according to the embodiment of the present invention depends on the position at which the slider 40 is stopped. 130) can be delicately transformed, and there is an effect of maintaining such a posture.

Then, as shown in FIG. 10 , when the relief button 60 is operated, the relief button 60 operates the rocker lever 50 to release the fixation of the slider 40 from the rocker lever 50 . As a result, as shown in FIG. 11, the lever 20 is raised by the restoring force of the first spring 71, and the link 30 is switched from a lying posture to a standing posture, thereby moving the slider 40 forward (C) .

When the slider 40 moves forward (C), the head 130 of the functional unit is converted from a bent posture to an unfolded posture.

As described above, in the surgical medical device according to the embodiment of the present invention, after the surgeon deforms the functional part into a desired shape, the surgical medical device can maintain the deformed shape when no additional manipulation is performed, thereby maintaining the surgical medical device. Since the doctor who manipulated the device can perform medical treatment by manipulating other medical devices, the number of people participating in the operation can be reduced.

In addition, the medical device for surgery according to an embodiment of the present invention can quickly and accurately restore the deformed shape of the function unit to its initial shape according to the surgeon's will.

That is, in the surgical medical device according to an embodiment of the present invention, a surgeon conveniently transforms a functional part into a desired shape with one hand, and changes his/her hand while holding the surgical medical device as needed during a surgical procedure. The deformed shape of the functional part can be quickly and accurately restored to the initial shape easily and easily through a relief button without changing the position where the surgical medical device is currently held by the surgeon.

On the other hand, in the medical device for surgery according to an embodiment of the present invention, as shown in FIG. 5, the slider 40 has a first sawtooth portion 42 formed at a portion in contact with the rocker lever 50. The rocker lever 50 may have a second tooth-shaped portion 54 formed at a portion in contact with the slider 40 .

That is, when the slider 40 moves backward (B) due to the characteristics of the shape of the first and second serrated portions 42 and 54, the second serrated portion 54 moves toward the first serrated portion 42. , and when the slider 40 moves forward (C), the first saw-toothed portion 42 and the second saw-toothed portion 54 are engaged so that the movement can be restricted.

In particular, the position at which the slider 40 stops can be more precisely set according to the number of teeth of the first tooth-shaped portion 42 . To elaborate on this, if the number of teeth is, for example, 9, from the position where the slider 40 is maximally retracted to the position where it is maximally advanced, if the slider 40 retreats by 0.5 mm every time it crosses one tooth shape, the head ( 130) may change the posture by 7.5 degrees.

By changing the posture of the head 130, it is possible to perform sophisticated medical treatment such as pulling or moving body tissues to a strap or forming a knot in a strap.

On the other hand, as shown in FIG. 5 , the rocker lever 50 may seesaw around a portion installed in the lever 10 . More specifically, the rocker lever 50 may seesaw around the second shaft 12 of the body 10 .

As shown in (a) of FIG. 4, the rocker lever 50 contacts the relief button 60 on the opposite side to the second sawtooth portion 54.

The rocker lever 50 forms a first inclined surface 56 on a surface in contact with the relief button 60, and the first inclined surface 56 is formed with respect to the operating direction A of the relief button 60. It may have an acute angle (a) of 18 degrees or more and 20 degrees or less.

An acute angle (a) of 18 degrees or more and 20 degrees or less with respect to the operating movement direction (A) of the relief button 60 will be described in detail with reference to FIG. 5 .

Figure 5 (a) is a cross-sectional view of the slider 40, the rocker lever 50 and the relief button 60, and Figure 5 (b) shows an example in which the acute angle a1 exceeds 20 degrees. , FIG. 5(c) shows an example in which the acute angle a is 18 degrees or more and 20 degrees or less, and FIG. 5(d) shows an example in which the acute angle a2 is less than 18 degrees.

The sawtooth height (h) of the first sawtooth-shaped portion 42 is a relatively small size compared to the movement displacement of the relief button 60 at the level of 0.2 to 1mm.

As shown in (c) of FIG. 5, when the acute angle (a) is 18 degrees or more and 20 degrees or less, when operating the relief button 60, it is possible to reliably recognize that the user himself has operated it. To elaborate on this, the movement displacement (s) at which the relief button 60 moves backward (A) can move, for example, 3 to 7 mm, and the range of this value is such that the relief button 60 is retracted. can

On the other hand, as shown in (b) of FIG. 5, when the acute angle a1 is configured to exceed 20 degrees, engagement or release of engagement of the second sawtooth portion 54 from the first sawtooth portion 42 is realized. When the displacement is implemented by the sawtooth height h, the movement range s1 of the relief button 60 is so small that the user may not be sure that the relief button 60 has moved backward, and the relief button 60 There may be a problem of forcibly applying a large force to the relief button 60 in order to ensure the retreat movement.

In addition, as shown in (c) of FIG. 5, when the acute angle a2 is less than 18 degrees, the second sawtooth portion 54 is engaged or released from the first sawtooth portion 42. When the displacement is implemented by the sawtooth height h, the movement range s2 of the relief button 60 becomes too large.

Since the handle has to be provided in a size suitable for the user's hand, the internal space of the handle has to be limited. For this reason, the inner space of the handle part may be cramped, and there is a special circumstance in which the size of the teeth of the first tooth-shaped portion 42 must be formed to a very small size, and the relief butt 60 is movable in the displacement space. There are limits.

As described above, in the surgical medical device according to the embodiment of the present invention, the first inclined surface 56 has an acute angle (a) of 18 degrees or more and 20 degrees or less with respect to the operating movement direction A of the relief button 60. ) By forming the relief button 60 at an appropriate displacement (s), it is possible to reliably recognize that the movement has been made, and from the first sawtooth portion 42 to the second sawtooth portion 54 in the space limited inside the handle portion. ) can be implemented satisfactorily.

The relief button 60 is used to switch the head 130 of the functional unit from a bent posture to an unfolded posture. When the surgeon pulls the relief button 60 like pulling the trigger of a gun, the relief button 60 retracts and mechanically acts with the locker lever 50.

When the relief button 60 moves backward (A) as shown in FIG. 10, the second inclined surface 66 contacts the first inclined surface 56, and the rocker lever 50 cannot move backward. rotate counterclockwise to

As the rocker lever 50 rotates counterclockwise, the engagement between the first tooth-shaped portion 42 and the second tooth-shaped portion 54 is released, whereby the slider 40 can be completely freed from restraint.

Then, as shown in FIG. 11, the lever 20 is returned to the initial position by the restoring force of the first spring 71, the link 30 pulls the slider 40 while being erected, and the slider 40 moves forward ( C) do. When the slider 40 moves forward (C), the head 130 of the functional unit is converted from a bent or tilted posture to an open posture.

On the other hand, the medical device for surgery according to an embodiment of the present invention is constituted by including the shaft 80 and the rod 90 as described above, and the moving band 100 and the stay band 110 to operate the functional unit. ), the node block 120 and the head 130 can be configured.

The shaft 80 is installed in front of the body 10 and may be formed as a pipe. The shaft 80 may be provided with a material having rigidity.

One end of the rod 90 is connected to the slider 40 as a connector 44, and the other end can slide inside the shaft 80.

The connector 44 can be assembled by inserting the rod 90 into the slider 40 and fastening bolts. If a problem such as contamination occurs in the functional part, the bolt can be loosened and replaced with a new rod and functional part. .

One end of the moving band 100 is fixed to the rod 90 and the other end slides on the shaft 80. That is, when the slider 40 moves forward and backward, the moving band 100 can move forward and backward on the shaft 80 .

The stay band 110 is fixed to the end of the shaft 80 opposite to the body 10 .

As shown in FIG. 6 , a plurality of node blocks 120 may be provided and spaced apart from each other.

In addition, the node block 120 passes through the moving band 100 and is fixed to the stay band 110 .

The head 130 is installed at the ends of the moving band 100 and the stay band 110, and a hole 132 or a slit 134 may be formed therein.

A strap may be inserted into the hole 132 as if threading a thread through the eye of a needle. The slit 134 can be moved by pulling or inserting the strap like a rake, and the strap can be peeled off after the movement is completed.

That is, the head 130 may use a hole 132 or a slit 134 depending on the operation.

7 is an initial state in which the user does not operate the lever 20. In this state, as shown in (b) of FIG. 7, the head 130 may be in a linearly unfolded state.

Thereafter, as shown in FIGS. 8 and 9 , when the lever 20 is operated, the slider 40 retracts, and as a result, the slider 40 pulls the rod 90, and the rod 90 moves the moving band 100. ) pull

The length of the moving band 100 is shortened between the end of the shaft 80 and the head 130, but the length of the stay band 110 does not change. As a result, the posture of the head 130 toward the moving band 100 may be deformed.

Thereafter, when the relief button 60 is operated and the pushing action of the lever 20 is released, the slider 40 moves forward (C), thereby moving the moving band 100 forward while the rod 90 moves forward. As a result, the length of the moving band 100 and the length of the stay band 110 can be equal between the end of the shaft 80 and the head 130, and in this case, the head 130 moves from a bent position to an open position. can be converted

On the other hand, as shown in (d) of FIG. 6, the moving band 100 and the stay band 110 may have a rectangular cross section, and when viewed from the cross section, the The long side and the long side of the stay band 110 are arranged in a parallel direction.

As a result, the moving band 100 and the stay band 110 can always be limited and bent in a specific direction. The specific direction may be a direction perpendicular to long sides of the rectangular shapes of the moving band 100 and the stay band 110 .

That is, in the medical device for surgery according to an embodiment of the present invention, since the functional unit can perform surgery while recognizing in which direction the head 130 is to be bent, pulling a strap, tying a knot, or , It is possible to predict how much the lever 20 should be manipulated when pulling the body tissue, thereby contributing to the operation according to the planned operation method.

The body 10, the lever 20, and/or the relief button 60 of the present invention may exhibit antifouling effects by forming a coating layer using a coating composition having excellent antifouling effects.

The coating composition is more specifically inorganic nanoparticles; silin compounds; Surfactants; bookbinder; dispersant; and a solvent.

The average diameter of the inorganic nanoparticles is 3 to 5 μm. As the inorganic powder having a small average diameter within the above range is used, even if the coating layer is formed, the touch may not be impaired.

The inorganic nanoparticles are selected from the group consisting of barium titanate, silica (SiO 2 ), titanate (TiO 2 ), and mixtures thereof, and are preferably barium titanate, but are not limited to the above examples.

Preferably, the silane compound is a compound represented by Formula 1 below:

[Formula 1]

here,

n is an integer from 1 to 100;

The silane compound includes a plurality of -OCF3 substituents, and a fluorine film is formed in the coating layer by the -OCF3 substituents, thereby increasing the antifouling effect.

In addition, since it contains an alkylene group having 1 to 100 carbon atoms as a linker, -OCF3 substituents can be placed on both sides of the ester group at a certain distance, preventing interference with inorganic nanoparticles in the coating layer. Accordingly, the antifouling effect can be further increased.

Preferably, the linker is an alkylene group having 5 to 10 carbon atoms, that is, n is an integer of 5 to 10, and when the coating layer is formed within the above range, a fluorine coating that can maximize the antifouling effect within the thickness range of the coating layer. formation is possible. When n is less than 5, there may be a problem that the antifouling effect is inhibited due to the interference effect between the inorganic nanoparticles and the -OCF3 substituent, and when n exceeds 10, the distance between the inorganic nanoparticles and the fluorine coating in the coating layer is reduced. Although it is possible to prevent the occurrence of the interference effect by moving away, there is a problem in that the antifouling effect due to the combination of the fluorine film and the inorganic nanoparticles is inferior.

The surfactant is a betaine-based surfactant, more specifically, an alkylbetaine-based, amide-betaine-based, sulfobetaine-based, hydroxysulfobetaine-based, amidosulfobetaine-based and phosphobetaine-based, imidazolinium-betaine-based It may be selected from the group consisting of, but is not limited to the above examples.

The binder is selected from the group consisting of acrylic binders, urethane-based binders, silicone-based binders, and mixtures thereof, more specifically a silicone-based binder, and more specifically selected from the group consisting of polydimethylsiloxane, polyhydrosiloxane, and mixtures thereof. However, it is not limited to the above examples.

The dispersing agent may use a known component employed in the art as a dispersing agent for a carbon-based filler. More specifically, polyester-based dispersing agent, polyphenylene ether-based dispersing agent, polyolefin-based dispersing agent, acrylonitrile-butadiene-styrene copolymer dispersing agent, polyarylate-based dispersing agent, polyamide-based dispersing agent, polyamide-imide-based dispersing agent, polyarylsulfone-based dispersing agents, polyetherimide-based dispersing agents, polyethersulfone-based dispersing agents, polyphenylene sulfide-based dispersing agents, polyimide-based dispersing agents; Polyether ketone-based dispersing agent, polybenzoxazole-based dispersing agent, polyoxadiazole-based dispersing agent, polybenzothiazole-based dispersing agent, polybenzimidazole-based dispersing agent, polypyridine-based dispersing agent, polytriazole-based dispersing agent, polypyrrolidine-based dispersing agent, polydibenzofuran It may be selected from the group consisting of a polysulfone-based dispersing agent, a polyurea-based dispersing agent, a polyurethane-based dispersing agent, a polyphosphazene-based dispersing agent, and mixtures thereof, but is not limited to the above examples.

The solvent may be selected from the group consisting of water, alcohol solvents, halogen-containing hydrocarbon solvents, ketone solvents, cellosolve solvents and amide solvents, but is not limited to the above examples.

The coating composition may include inorganic nanoparticles; silane compounds; Surfactants; bookbinder; dispersant; and a solvent, preferably 5 to 20 parts by weight of inorganic nanoparticles based on 100 parts by weight of the solvent; 20 to 50 parts by weight of a silane compound; 10 to 20 parts by weight of a surfactant; 30 to 50 parts by weight of a binder; and 5 to 10 parts by weight of a dispersant. In the case of the above range, a synergistic effect of critical significance is expressed as a synergistic effect due to the interaction of each extract, and when it is out of the above range, the synergistic effect is rapidly reduced or almost absent.

The coating composition may include inorganic nanoparticles; silane compounds; Surfactants; bookbinder; dispersant; and a solvent are mixed and then stirred at 100 to 150 rpm. The prepared coating composition exhibits a viscosity of 1,500 to 2,000cps, and when forming a coating layer on the surface of a substrate within the above viscosity range, it is possible to maintain a constant shape, thereby facilitating coating using a known coating method.

[Preparation Example 1: Preparation of coating composition]

Barium titanate having an average diameter of 3 to 5 μm, a silane compound represented by Formula 1, an alkylbetaine-based surfactant, a polyhydrosiloxane binder, water and a polyester-based dispersant were mixed at a speed of 100 rpm. After stirring for 10 to 30 minutes, a coating composition was prepared:

[Formula 1]

(Here, n is an integer of 10.)

All components constituting the coating composition were purchased and used in the preparation of the coating composition. A more specific composition of the coating composition is shown in [Table 1] below.

BB1 BB2 BB3 BB4 BB5 BB6 BB7 BB8 BB9 BB10 BB11 water 100 100 100 100 100 100 100 100 100 100 100 barium titanate One 5 10 15 20 25 15 15 15 15 15 silane compound 10 20 30 40 50 60 40 40 40 40 40 Surfactants 5 10 13 16 20 30 16 16 16 16 16 bookbinder 20 30 35 45 50 60 45 45 45 45 45 dispersant One 5 7 8 10 20 8 8 8 8 8

A 5×5 cm specimen was immersed in the coating composition of BB1 to BB11 and dried at 90 to 95° C. for 60 minutes to form a coating layer.

[Experimental Example 1: Appearance evaluation]

Before coating the specimens with the coating compositions of BB1 to BB11, the viscosity was measured using a Brookfield viscometer at 25° C., and after forming the coating layer, the appearance was observed.

Evaluation was conducted according to the following evaluation criteria according to the case where the coating layer was formed flat on the surface of the substrate and the degree of curvature.

○: Formation of a flat coating layer

△: Formation of a coating layer in a partially curved shape

×: Formation of a coating layer in a curved shape in many parts

BB1 BB2 BB3 BB4 BB5 BB6 Viscosity (cps) 500 1,120 1,560 1,800 1,920 2,250 Appearance evaluation Х Х ○ ○ ○ △

As shown in [Table 2], as a result of forming a coating layer on the substrate and evaluating the appearance, the viscosity was measured differently according to the content range of the coating composition, and it was confirmed that a large difference was shown in whether or not a uniform coating layer was formed depending on the viscosity range. .

[Experimental Example 2: Fouling Resistance Evaluation]

Place the specimens whose surfaces are coated with experiment numbers BB1 to BB6 in a friction fastness tester (model name DL-2007), and place a contaminated cloth (Test fabric, product name IEC carbon black / mineral oil, EMPA) on the surface of the sample to be contaminated, The reciprocating rubbing was performed 10 times, and the contaminated samples were visually compared to give a contamination grade as shown in Table 2 below.

The evaluation criteria are as follows.

◎: No visible contaminants

○: Slightly visible or barely conspicuous stains

△: Slightly severe blood staining

×: Blood contamination is seen quite severely

BB1 BB2 BB3 BB4 BB5 BB6 stain resistance Х △ ◎ ◎ ○ △

Referring to [Table 3], it was confirmed that BB1 was significantly contaminated with blood. In the case of BB 2 and BB 6, blood contamination was slightly severe. On the other hand, in BB3 to BB5, no or no contaminants were observed, and it was confirmed that stain resistance was excellent.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. You will be able to.

Therefore, the embodiments described above should be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the claims to be described later, and all derived from the meaning and scope of the claims and equivalent concepts thereof. Changes or modified forms should be construed as being included within the scope of the present invention.

A medical device for surgery according to an embodiment of the present invention, when performing liver resection or gastrectomy, pulls or lifts internal tissue by threading a strap or medical thread, or marks a specific location of internal tissue. can be used for

10: Body 11 to 14: 1st to 4th shafts
15: spring pocket 16: button pocket
20: lever
22: first boss 24: fifth shaft
30: Link 32, 34: 2nd and 3rd bosses
40: slider 42: first sawtooth portion
44: connector 46: fourth boss
50: rocker lever 52: fifth boss
54: second sawtooth portion 56: first inclined surface
60: relief button 62: sixth shaft
64: button body 66: second slope
71 to 73: 1st to 3rd springs
80: shaft 90: rod
100: moving band 110: stay band
120: node block 130: head
132: hole 134: slit

Claims (5)

a body with an open top and front;
a lever rotatably assembled to the body, partially exposed on an upper portion of the body, and returning to a restoring force of a first spring when a pressing action by a user is released;
a link rotatably assembled to the lever;
a slider rotatably assembled to the link and retracting in proportion to a displacement of the lever when the lever is pressed;
a rocker lever rotatably assembled to the body, passing the slider when the slider moves backward, and restraining forward movement of the slider by coming into close contact with the slider with a restoring force of a second spring; and
a relief button installed at the front of the body, releasing the suppression of the slider from the rocker lever when a retracting operation is performed, and returning to a restoring force of a third spring when a user operation is released;
Surgical medical device comprising a.
According to claim 1,
a shaft installed in front of the body and formed of a pipe;
a rod having one end connected to the slider and the other sliding inside the shaft;
a moving band having one end fixed to the rod and the other sliding on the shaft;
a stay band fixed to the end of the shaft opposite to the body;
a plurality of node blocks through which the moving band passes, fixed to the stay band, and spaced apart from each other; and
Heads installed at the ends of the moving band and the stay band and formed with holes or slits;
A surgical medical device further comprising a.
According to claim 2,
The moving band and the stay band are formed in a rectangular cross section,
When viewed in cross section, the long side of the moving band and the long side of the stay band are arranged in parallel, and the moving band and the stay band are limited and bent in a direction orthogonal to the long side of the moving band.
Surgical medical device comprising a. According to claim 3,
The slider has a first tooth-shaped portion formed at a portion in contact with the rocker lever,
The rocker lever has a second tooth-shaped portion formed at a portion in contact with the slider,
When the slider moves backward, the second serrated portion passes over the first serrated portion,
When the slider moves forward, the first serrated portion and the second serrated portion are engaged and the movement is limited.
A medical device for surgery, characterized in that.
According to claim 4,
The rocker lever seesaws around a portion installed on the lever, contacts the relief button on the opposite side of the second tooth-shaped portion, and forms a first inclined surface on a surface in contact with the relief button,
The first inclined surface has an acute angle (a) of 18 degrees or more and 20 degrees or less with respect to the operating direction of the relief button.
A medical device for surgery, characterized in that.

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