KR102238751B1 - Scissors Type Ultrasonic Energy Device - Google Patents

Abstract

A scissor type ultrasonic energy device according to an aspect of the present invention includes: a pipe portion; A clamp part formed at one end of the pipe part; And a handle part connected to the other end of the pipe part and controlling an operation of the clamp part, wherein the clamp part includes a shaft inserted into the pipe part and transmitting ultrasonic waves generated from the handle part; And a jaw for compressing at least a portion of the body together with the shaft and cutting at least a portion of the tissue or blood vessel of the body based on vibration energy and heat energy generated by the ultrasonic wave, and the handle The part includes a lever unit that compresses at least a part of the body by the shaft and the jaw through manipulation by a user, transmits the ultrasonic wave to the tissue or blood vessel, and controls the movement of the pipe part; A transducer generating the ultrasonic wave; And a power connector connected to a cable of the power supply unit to supply power, wherein the transducer includes: a piezoelectric element generating the ultrasonic wave by using a piezoelectric phenomenon; A horn amplifying the generated ultrasonic waves; A piezo body receiving the amplified ultrasonic wave from the horn and moving back and forth to transmit the amplified ultrasonic wave to the shaft; And a piezo case surrounding the piezoelectric element. It may include.

Description

Scissor Type Ultrasonic Energy Device

The present invention relates to a scissor type ultrasonic energy device.

Laparoscopic surgery refers to an operation performed while looking inside the abdominal cavity after making a small hole in the side of the abdomen and putting air in it to make it swell for easy observation.

Compared to laparotomy, which is performed by incising the abdomen, it is simpler than laparotomy, and as the incision area is narrow, recovery is much faster, which is preferred in recent years.

Many diseases can be treated by examining and operating organs in the abdominal cavity using a laparoscope, and various surgical tools, including a probe, have been developed to enable examination and surgery through a minimum opening. In particular, surgical instruments for cutting the surgical site using ultrasonic waves are being developed.

Korean Patent Application Publication No. 2014-0147843 discloses a surgical instrument using ultrasonic waves, which maximizes the ultrasonic intensity to cut a surgical site.

However, in cutting the surgical site or blood vessel, the intensity of the ultrasound is also important, but a technology that accurately grips the target and prevents damage to the cut area is also an important problem.

This is because if the tissue or blood vessels at the surgical site are damaged, bleeding may occur or recovery may be delayed.

In addition, Korean Patent Application Publication No. 2014-0079785 discloses a surgical instrument having an integral knife blade, which cuts blood vessels or tissues by driving a knife member.

However, such a knife member has a straight or concave shape of the blade, and when cutting a blood vessel or tissue, it is not only difficult to cut because the blood vessel is pushed to one side, and the blood vessel is pushed or cut at multiple points, which may damage the blood vessel. There is.

Therefore, there is a need to develop a laparoscopic apparatus capable of accurately cutting blood vessels or tissues.

In addition, there is a need to develop a laparoscopic device that can minimize damage to blood vessels during cutting.

In addition, when grasping tissues or blood vessels, it may not be possible to find the exact location at once.At this time, if the tissues or blood vessels are strongly gripped, damage may occur to the wrong area other than the area to be treated. There is also a risk of damage to the device, so a method is needed to solve this.

Furthermore, as the piezoelectric element generates ultrasonic waves, amplifies through the horn, and the piezo body receives ultrasonic waves (vibration) and moves back and forth, the rotational motion in the injection object is induced, resulting in loss due to interference and noise. A problem arises.

In addition, in response to the rotation of the wheel by 360 degrees, the clamp part is also rotated 360 degrees, and the pipe part also rotates according to the rotation of the wheel.

Therefore, there is a growing need for a laparoscopic instrument that can solve this problem.

(1) Korean Patent Application Publication No. 2014-0147843 (2) Korean Patent Application Publication No. 2014-0079785

The present invention relates to a scissor-type ultrasonic energy device, and more specifically, a pipe portion formed in a cylindrical shape and having a shaft therein, a lower jaw formed at one end of the handle portion and formed with an opening in the length direction, a lower jaw, and It is intended to provide a user with a surgical instrument including a clamp part, a transducer, and a handle part having a shaft connected to the pipe part.

An object of the present invention is to provide a scissor-type ultrasonic energy device capable of accurately cutting blood vessels by firmly grasping blood vessels.

In addition, it is an object of the present invention to provide a scissor-type ultrasonic energy device having a good feeling of use by predicting a force applied to a target when a handle is pulled.

In addition, an object of the present invention is to provide a scissor-type ultrasonic energy device capable of neatly cutting blood vessels or tissues.

In addition, an object of the present invention is to provide a scissor-type ultrasonic energy device that minimizes wounds when cutting blood vessels or tissues.

In addition, an object of the present invention is to provide a surgical instrument in which the three sides of the end of the jaw are gathered in the center to facilitate the dissection of the tissue, and the V-shaped structure securely fixes the tissue pad.

In addition, an object of the present invention is to provide a scissor-type ultrasonic energy device that has one or more buttons and can be used for output by pressing a button, and is provided by separating a Seal & Cut button and a Seal button.

In addition, the object of the present invention is composed of a plurality of ceramic piezoelectric elements, the operation of stably cutting the tissue by absorbing noise or vibration generated in the process of converting electric power into ultrasonic vibration energy, respectively. To make it possible.

On the other hand, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly to those of ordinary skill in the technical field to which the present invention belongs from the following description. It will be understandable.

A scissor type ultrasonic energy device according to an aspect of the present invention for achieving the above technical problem includes: a pipe portion; A clamp part formed at one end of the pipe part; And a handle part connected to the other end of the pipe part and controlling an operation of the clamp part; and a shaft through which ultrasonic waves generated from the handle part are transmitted; And a jaw for compressing at least a portion of the body together with the shaft and cutting at least a portion of the tissue or blood vessel of the body based on vibration energy and heat energy generated by the ultrasonic wave, and the handle The transducer, through which the user manipulates the shaft and the jaw, compresses at least a part of the body, transmits the ultrasonic wave to the tissue or blood vessel, and is connected to a power supply cable to generate the ultrasonic wave. A piezoelectric element generating the ultrasonic wave by using; A horn amplifying the generated ultrasonic waves; A piezo body receiving the amplified ultrasonic wave from the horn and moving back and forth to transmit the amplified ultrasonic wave to the shaft; And a piezo end cap surrounding the piezoelectric element. It may include.

In addition, one end of the jaw is pivotally connected to at least a portion of the pipe portion, and the jaw rotates about the connected pivot axis and engages with the shaft, thereby performing the pressing and cutting operation.

In addition, the jaw, the upper surface has a support portion having a curved shape; And a clamp pad inserted into and connected to the lower end of the support part.

In addition, the support part and the clamp pad may be inserted in a V-shape to be coupled.

Further, an inner surface of the clamp pad facing the shaft may be coated with Teflon for insulation, and a bottom surface of the Teflon coated may have a lattice shape to support the pressing operation.

In addition, an end of the support part may be formed in a streamlined shape, and the end may be formed in a structure in which three surfaces are gathered to the center.

In addition, when the user manipulates the handle, the pipe portion moves in the direction of the handle, and the shaft and the jaw are closed, thereby compressing at least a part of the body.

In addition, when the user releases the handle, the pipe part moves in the direction of the clamp part, and the shaft and the jaw are opened, so that the pressing operation may be released.

In addition, at least some of vibration energy and thermal energy applied to the cutting operation may be changed according to the shape of the shaft.

In addition, in the cutting operation, a first button that provides only a seal function; And it may further include a second button that provides both the seal function and the cut function.

In addition, the first button and the second button are triggered by a user's finger force, and may be triggered in response to the user's manipulation.

The present invention relates to a scissor-type ultrasonic energy device, and more specifically, a pipe portion formed in a cylindrical shape and having a shaft therein, an upper jaw formed at one end of the pipe portion and having an opening in the length direction, an upper jaw and one end It is possible to provide a laparoscopic instrument to a user including a grip portion having a lower jaw hinged in, and a handle portion having a lever unit, a spring unit, a transducer, a housing, and a power connector connected to the other end of the pipe portion.

The present invention can provide a scissor-type ultrasonic energy device capable of accurately cutting blood vessels by firmly gripping blood vessels.

In addition, the present invention can predict the force applied to the target when the lever is pulled, thereby providing a scissor-type ultrasonic energy device with good usability.

In addition, the present invention can provide a laparoscopic apparatus capable of neatly cutting blood vessels or tissues.

In addition, the present invention can provide a scissor-type ultrasonic energy device that minimizes wounds when cutting blood vessels or tissues.

In addition, the present invention can provide a scissor-type ultrasonic energy device in which the three sides of the jaw end are gathered in the center, which facilitates dissection of the tissue, and the V-shaped structure securely fixes the tissue pad.

In addition, the present invention can provide a scissor-type ultrasonic energy device that has one or more buttons and can be used for output by pressing a button, and is provided by separating a Seal & Cut button and a Seal button.

In addition, the present invention provides a scissor-type ultrasonic energy device that adjusts the pressure of the tissue by absorbing the spring in the first stage, the spring in the second stage, and the rubber block in two stages according to the strength of the pressure to the end-effector through one spring and a rubber block. Can provide.

In addition, according to the present invention, the first, second, and third rubbers each absorb interference generated in a process of converting electric power into ultrasonic vibration energy, which is composed of a plurality of ceramic piezoelectric elements, thereby enabling stable operation.

In addition, in the present invention, the -electrode plate connected to the spring surrounds the outer shape of the +electrode plate connected to the spring, and the cable is fixed even when the transducer rotates so that a current flows.

In addition, according to the present invention, even if the first plate is rotated by the rotation of the transducer using the pogo pin, the cable is fixed to the second plate so that current flows.

However, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. I will be able to.

1 is a view showing a laparoscopic apparatus according to an embodiment of the present invention.
2 is a view showing the forceps in the laparoscopic apparatus according to an embodiment of the present invention.
3A is a view showing a jaw in a laparoscopic apparatus according to an embodiment of the present invention, and FIG. 3B is a view showing a clamp pad according to an embodiment of the present invention.
4 is a view showing a state in which a support part and a clamp pad are coupled in a jaw according to an embodiment of the present invention.
5 shows a specific example of the shaft extending in the longitudinal direction through the inside of the pipe portion to the tongs.
6 is a view showing a state in which the forceps are driven in the laparoscopic apparatus according to an embodiment of the present invention.
7 shows an example of a handle provided with a lever unit, a spring unit, a transducer, a housing, a power connector, and the like in the laparoscopic apparatus according to an embodiment of the present invention.
8 shows an example of a specific internal structure of the handle described in FIG. 7.
9 is a view for explaining the structure of a conventional spring unit, Figure 10 shows a specific example of the spring unit according to the present invention.
11 and 12 show a specific example of a transducer according to the present invention.
13 shows a first embodiment of a power connector according to the present invention.
14A and 14B show a specific example of a pogo pin applied to a second embodiment of a power connector according to the present invention.
15 and 16 show a second embodiment of a power connector according to the present invention.

Hereinafter, the present invention * preferred embodiments will be described in detail with reference to the accompanying drawings.

In the present invention, various modifications may be made and various embodiments may be provided, and specific embodiments will be illustrated in the drawings and described in detail. This is not intended to limit the present invention to a specific embodiment, it can be understood to include all changes, equivalents, or substitutes included in the spirit and scope of the present invention.

In describing the present invention, terms such as first and second may be used to describe various elements, but the elements may not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

When a component is connected to or is referred to as being connected to another component, it can be understood that it is directly connected to or may be connected to the other component, but other components may exist in the middle. . On the other hand, when a component is directly connected to or directly connected to another component, it may be understood that there is no other component in the middle.

The terms used in the present specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions may include plural expressions unless the context clearly indicates otherwise.

In the present specification, terms such as include or include are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, and one or more other features or numbers, It may be understood that the possibility of the presence or addition of steps, actions, components, parts, or combinations thereof, is not preliminarily excluded.

In addition, unless otherwise defined, all terms used in this specification, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. . Terms as defined in a commonly used dictionary may be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present specification, it is interpreted as an ideal or excessively formal meaning. It may not be.

Laparoscopic instrument

1 is a view showing a laparoscopic apparatus according to an embodiment of the present invention.

Referring to Figure 1, the laparoscopic apparatus 1000 according to the present invention includes a pipe portion 1100, a forceps portion 1200, a handle portion 1300, and a power connector 1400 provided at the end of the handle portion 1300 can do.

1, the pipe portion 1100 is formed of a cylindrical pipe 1110.

The pipe 1110 is composed of an outer pipe and an inner pipe provided inside the outer pipe.

Here, since the pipe 1110 enters the body through a small abdominal cavity, it is not corroded and must be formed of a hygienic material.

In this embodiment, the pipe 1110 may be formed of a SUS material.

SUS has strong corrosion resistance, so it does not rust well, and it does not require surface treatment such as painting or painting.

In addition, the inner pipe may move in the longitudinal direction inside the pipe 1110.

One end of the pipe 1110 is provided with a clamp part 1200, and the clamp part 1200 is also referred to as an end effetor.

The forceps 1200 includes a jaw 1210, a shaft 1220, and the like, and ultrasonic waves are transmitted to the tissue in need of treatment through the shaft 1220, and the jaw 1210 and the shaft 1220 are cut parts. At the same time, the tissue or blood vessel can be cut by vibration energy and thermal energy generated by ultrasonic waves.

In addition, a wheel 1341 is provided at the other end of the pipe 1110, and a handle 1300 and a power connector 1400 are provided at a rear end of the wheel 1341.

Specifically, the handle unit 1300 includes a lever unit 1310, a spring unit 1320, a transducer 1330, and a housing 1340.

In addition, the power connector 1400 is a structure connected to a cable of a power supply unit (not shown), and the handle unit 1300 and the power connector 1400 according to the present invention may be integrally included.

Hereinafter, referring to the drawings, a specific structure of the clamp unit 1200, the handle unit 1300, and the power connector 1400 according to the present invention will be described.

Tongs

2 is a view showing the forceps in the laparoscopic apparatus according to an embodiment of the present invention.

As shown in FIG. 2, the clamp unit 1200 includes a jaw 1210 and a shaft 1220.

Here, the shaft 1220 extends in the longitudinal direction through the pipe portion 1100 to the clamp portion 1200.

In addition, the jaw 1210 is pivotally connected to the inner pipe at one end.

Here, the jaw 1210 rotates about the pivot axis and engages the shaft 1220.

In addition, the ultrasonic wave is transmitted to the tissue in need of treatment through the shaft 1220, and the jaw 1210 and the shaft 1220 compress the cut portion and at the same time, the tissue or Blood vessels can be cut.

Here, the jaw 1210 may be composed of a support part 1211 and a clamp pad 1230.

3A is a view showing a jaw in a laparoscopic apparatus according to an embodiment of the present invention, and FIG. 3B is a view showing a clamp pad according to an embodiment of the present invention.

First, referring to FIG. 3A, the overall shape of the jaw 1210 combined with the support 1211 and the clamp pad 1230 according to the present invention is shown.

Also, referring to FIG. 3B, a clamp pad 1230 according to the present invention is shown.

The clamp pad 1230 according to the present invention. It is formed of SUS, but its surface is covered with an insulator to prevent current from flowing outside the tissue that needs treatment.

In addition, the inner surface of the clamp pad 1230 facing the shaft 1220 of the jaw 1210 may be coated with Teflon for insulation.

In addition, the bottom surface of the Teflon coating may have a lattice shape so that blood vessels can be well gripped.

Returning to FIG. 3A and referring to (a), it is preferable that the upper surface of the support portion 1211 of the jaw 1210 is formed in a curved shape.

As the upper surface of the support part 1211 is formed in a curved shape, when the laparoscopic device is inserted into the body, damage to tissues and blood vessels can be prevented.

In addition, the end 1212 of the support part 1211 may be formed in a streamlined shape.

Referring to (a) of Figure 3a, the end 1212 of the support portion 1211 is formed in a structure in which three sides are gathered in the center, which is designed to facilitate the anatomy of the tissue.

That is, since the end of the forceps 1200 is formed in a streamlined shape, it is possible to prevent damage to the internal organs or blood vessels when the instrument is inserted into the abdominal cavity.

In addition, the support 1211 and the clamp pad 1230 may be coupled to each other in a V-shaped structure for a rigid fixed connection.

4 is a view showing a state in which a support part and a clamp pad are coupled in a jaw according to an embodiment of the present invention.

4A shows an example of a tank in which the support 1211a and the clamp pad 1230a are coupled according to the conventional method.

The support part 1211a according to the conventional method has a curved shape having at least one hole, and is coupled to the clamp pad 1230a in a T-shaped structure.

Here, the conventional clamp pad 1230a is composed of two pieces, and the shapes of the first pad and the second pad among the two pieces have different characteristics.

On the other hand, as shown in (b) of FIG. 4, the support 1211 and the clamp pad 1230 according to the present invention may be coupled to each other in a V-shaped structure.

In addition, the clamp pad 1230 is not composed of a plurality of pieces, but is implemented as an integrated piece, and is inserted and fixed to the support part 1211 in a V shape.

On the other hand, the shaft 1220 is formed of a metal material, particularly preferably formed of a titanium material.

Titanium is light and strong, has good corrosion resistance, and can effectively transmit ultrasonic waves.

The jaw 1210 engages with the shaft 1220 and grips the tissue or blood vessel to be treated. In this case, the force of gripping the tissue or blood vessel is important.

If gripped with too weak force, blood vessels cannot be cut cleanly, burned, or coagulated unevenly.

Therefore, it is important that the jaw 1210 is rotated to engage the shaft 1220 so that the tissue or blood vessel can be firmly fixed.

5 shows a specific example of the shaft extending in the longitudinal direction through the inside of the pipe portion to the tongs.

Figure 5 (a), (b) and (c) shows a specific example of the shaft according to the present invention, the transmitted ultrasonic wave may be transformed according to the shape of the shaft, and according to each transformed waveform By vibrating energy and thermal energy, tissues or blood vessels can be cut according to the situation.

On the other hand, Figure 6 is a view showing a state in which the forceps are driven in the laparoscopic apparatus according to an embodiment of the present invention.

The user controls the operation of the clamp unit 1200 by pulling the lever 1311.

6, when the spring unit 1320 is compressed by pulling the lever 1311, the inner pipe moves in the B direction, and the jaw 1210 is closed.

Conversely, when the force pulling the lever 1310 is released, the spring unit 1320 is restored to its original shape, the inner pipe moves in the direction A, and the jaw 1210 is opened.

Handle

7 shows an example of a handle provided with a lever unit, a spring unit, a transducer, a housing, a power connector, and the like in the laparoscopic apparatus according to an embodiment of the present invention.

Referring to FIG. 7, the handle portion 1300 is connected to the other end of the pipe portion 1100.

As shown in FIG. 7, the handle 1300 includes a lever unit 1310, a spring unit 1320, a transducer 1330, a housing 1340, a power connector 1400, and the like.

First, the lever unit 1310 allows the user to pull and rotate the jaw 1210 to grasp the blood vessel and transmit the ultrasound to the treatment site.

The lever unit 1310 includes a lever 1311, a connecting member, and a link.

Here, the connection member is connected to the spring unit 1320 so that the spring unit 1320 is compressed as the lever 1311 is pulled.

The link connects the lever 1311 and the connecting member.

Next, the spring unit 1320 is connected to the lever unit 1310 to control the movement of the inner pipe.

The spring unit 1320 acts as a buffer so that the inner pipe does not rapidly operate due to the pulling of the lever 1311, and causes the inner pipe to return to its original position when the lever 1310 is released.

In the present invention, the spring unit 1320 is formed of one spring 1321 and a rubber block 1323 so as to adjust the force holding the laparoscopic apparatus 1000. Details of this will be described later.

In addition, the transducer 1330 is a device that generates ultrasonic vibrations acting on the treatment area.

The transducer 1330 is formed in a cylindrical shape and has an ultrasonic radiation surface to focus ultrasonic energy.

The ultrasound generated by the transducer 1330 is transmitted to the treatment site through the shaft 1220 so that the tissue or blood vessel is cut by heat.

In addition, the housing 1360 may accommodate the lever unit 1310, the spring unit 1320, and the transducer 1330.

The housing 1360 is formed of plastic, but is not limited thereto, and may be formed of various materials for a feeling of use.

In addition, a wheel 1341 and a wheel pin 1342 may be included.

The wheel pin 1342 provides a function of connecting the inside of the handle 1300 and the wheel 1341, and the pipe 1100 may rotate through the wheel 1341.

That is, the jaw 1210 is rotated according to the rotation of the pipe part 1100 to engage the shaft 1220 to securely fix the tissue or blood vessel, and when the instrument is inserted into the abdominal cavity, the internal organs or blood vessels are damaged. Can be prevented.

In addition, a Seal&Cut button 1351 and a Seal button 1352 may be further provided.

That is, in the present invention, a plurality of buttons having different functions may be provided.

When the user presses the Seal&Cut button 1351 and the Seal button 1352, the output can be used.

The Seal&Cut button 1351 is mounted on the lower part of the wheel 1341, and the button can be pressed with the force of a finger, and the pressing angle is 45° to 135° from the left and right.

When the Seal&Cut button (1351) is pressed, the seal function and the cut function are provided together.

In addition, the seal button 1352 is mounted on the lower end of the handle 1310 and can push the button 1352 by pulling the handle lever 1310.

When the seal button 1352 is pressed, only the seal function is provided.

In addition, the handle part 1300 according to the present invention may include a power connector 1400.

The power connector 1400 according to the present invention is a structure connected to a cable of a power supply unit (not shown), and the handle unit 1300 and the power connector 1400 according to the present invention may be integrally included.

Meanwhile, FIG. 8 shows an example of a specific internal structure of the handle portion described in FIG. 7.

Since the functions of the handle unit having a lever unit, a spring unit, a transducer, a housing, a power connector, and the like shown in FIG. 8 are the same as those described in FIG. 7, redundant descriptions are omitted for simplicity of the specification.

Hereinafter, specific structures and functions of the spring unit 1320 of the handle 1300, the transducer 1330, and the power connector 1400 will be described with reference to the drawings.

Spring unit

9 is a view for explaining the structure of a conventional spring unit, Figure 10 shows a specific example of the spring unit according to the present invention.

In the present invention, the driving structure is operated in two stages so that a tissue or blood vessel can be held weakly once and strongly once.

Conventionally, as shown in FIG. 9, a spring unit was used by configuring two springs 1321a and 1321b having different elasticity.

However, in the present invention, as shown in FIG. 10, the spring unit 1320 is formed of one spring 1321 and a rubber block 1323, so that the force for gripping the laparoscopic apparatus 1000 can be adjusted.

That is, in the present invention, the spring 1321 is absorbed in one step and the rubber block 1323 in two steps according to the strength of the pressure to the end-effector through one spring 1321 and the rubber block 1323. Regulates tissue pressure.

As shown in Fig. 10, the spring unit 1320 according to the present invention includes a spring 1321 and a rubber block 1323.

The spring 1321 and the rubber block 1323 have different elasticity from each other.

The spring 1321 may be a spring having weaker elasticity than the rubber block 1323.

When the lever 1311 is pulled, the spring 1321 and the rubber block 1323 are sequentially compressed.

Since the spring 1321 is less elastic than the rubber block 1323, when the lever 1310 is pulled, it is first compressed.

At this time, the forceps 1200 lightly grip the blood vessel by compression of the spring 1321.

When grasping tissues or blood vessels, the exact location may not be found at once. In this case, if the tissues or blood vessels are strongly gripped, damage may occur to the wrong area, not the area to be treated.

In addition, there is a risk of damage to the device if it is strongly gripped from the beginning.

The laparoscopic apparatus 1000 according to the present invention may lightly grip a tissue or blood vessel in a first stage in order to prevent damage to blood vessels and equipment.

After lightly grasping the exact location of the blood vessel with the forceps 1200 in the first stage, the second stage can be more strongly grasped.

That is, when the first gripping is completed, a stronger force must be applied to compress the rubber block 1323, and the rubber block 1323 is gripped in two stages by compression.

Tissues or blood vessels are firmly gripped by two-step gripping, and blood vessels can be accurately cut without burning or damaging the blood vessels by ultrasound.

Since the elasticity of the spring 1321 is less than the elasticity of the rubber block 1323, the spring unit 1320 is sequentially compressed, and the user pulls the lever and grips the first stage by the spring 1321, the rubber block 1323 Two-stage grasping by can be detected.

Therefore, the user can easily recognize how much force to apply while performing the operation, and a safer operation becomes possible.

Transducer

11 and 12 show a specific example of a transducer according to the present invention.

Referring to FIG. 11, the transducer 1330 according to the present invention is formed in a cylindrical shape, and includes an ultrasonic radiation surface to focus ultrasonic energy.

The ultrasound generated by the transducer 1330 is transmitted to the treatment site through the shaft 1220 so that the tissue or blood vessel is cut by heat.

Referring to FIG. 11, the transducer 1330 according to the present invention includes a piezo body 1331, a piezo case 1332, a piezoelectric element 1333, a piezo cap 1334, a first rubber 1335, and a second rubber. (1336), may include a third rubber (1337).

First, the piezoelectric element 1333, which provides the most important function of the transducer 1330, is an electrode, which uses a phenomenon in which electrical polarization occurs when mechanical deformation is applied from the outside.

The piezoelectric element 1333 generates ultrasonic waves (vibration) based on a piezoelectric phenomenon.

In addition, the piezo body 1331 receives ultrasonic waves (vibration) amplified through a horn from the piezoelectric element 1333 and moves back and forth, and transmits the ultrasonic waves (vibration) to the shaft 1220, and the shaft 1220 It is delivered to the treatment site through the tube so that the tissue or blood vessel is cut by heat.

In addition, the piezo case 1332 refers to a case surrounding the piezoelectric element 1333, and the piezo cap 1334 refers to a cap additionally provided at the end of the power connector 1400.

On the other hand, the piezoelectric element 1333 generates ultrasonic waves, amplifies through a horn, and the piezo body 1331 receives ultrasonic waves (vibration) and moves back and forth. Loss occurs due to interference (for example, collision with the piezo case 1332, the piezo cap 1334, etc.), and a problem occurs in that noise is generated.

Therefore, in the present invention, a plurality of rubbers are used to prevent loss, noise, and the like due to such interference.

That is, in the present invention, the first rubber 1335, the second rubber 1336, and the third rubber 1337 are each composed of a plurality of ceramic piezoelectric elements to prevent interference generated in the process of converting power into ultrasonic vibration energy. It absorbs and enables stable operation.

Referring to FIG. 11, in the present invention, a first rubber 1335, a second rubber 1336, and a third rubber 1337 are used.

First, the first rubber 1335 is disposed between the horn and the piezo body 1331.

Next, the second rubber 1336 is disposed between the horn and the piezoelectric element 1333.

In addition, the third rubber 1337 is disposed between the piezoelectric element 1333 and the piezo cap 1334.

As shown in FIG. 11, through the arranged first rubber 1335, the second rubber 1336, and the third rubber 1337, the piezoelectric element 1333 generates ultrasonic waves, which is amplified through a horn. During the process, the piezo body 1331 receives ultrasonic waves (vibration) and moves back and forth, the interference problem caused by the induction of a rotational motion in the injection object may be solved.

12 is an internal structure of the transducer 1330 described above, and includes the components described in FIG. 11 as it is, and redundant descriptions are omitted for the sake of simplicity of the specification.

First embodiment of the power connector

As described above, the laparoscopic instrument 1000 according to the present invention may include a wheel 1341 and a wheel pin 1342, and the wheel pin 1342 connects the inside of the handle 1300 and the wheel 1341 It provides a function to rotate, and supports the pipe unit 1100 to rotate through the wheel 1341.

In other words, the jaw 1210 is rotated according to the rotation of the pipe part 1100 to engage the shaft 1220 to firmly fix the tissue or blood vessel, and when the instrument is inserted into the abdominal cavity, the internal organs or blood vessels are damaged. Can be prevented.

At this time, the wheel 1341 can be rotated 360 degrees, and accordingly, the clamping unit 1200 can also be rotated 360 degrees, and the pipe unit 1100 also rotates according to the rotation of the wheel 1341, and at this time, the handle It may be problematic to rotate the cable of the power supply unit (not shown) connected to the end of the unit 1300 as well.

That is, the cable of the power supply unit is connected to the power connector 1400 disposed at the end of the handle unit 1300, and the cable is also continuously rotated according to the rotation of the pipe unit 1100, resulting in damage due to twisting of the internal line. A problem arises.

Accordingly, in the present invention, a new structure of the power connector 1400 capable of solving the problem of damage due to twisting in the cable while manufacturing the power connector 1400 and the cable of the power supply unit as an integral type is proposed.

13 shows a first embodiment of a power connector according to the present invention.

Referring to FIG. 13, the power connector 1400 according to the present invention may include a first structure 1410 and a second structure 1420.

The first structure 1410 is disposed at the end of the handle part 1300, that is, on the side of the piezo cap 1334, and the second structure is disposed in the housing 1360 while being connected to a cable.

That is, the power connector 1400 including the first structure 1410 and the second structure 1420 according to the present invention is not a separate type but is integrally disposed in the handle unit 1300.

At this time, the first structure 1410 includes a center plate 1411, a power pcb contract center 1412, a pcb spring base center 1413, a center spring 1414, and a center contract plate 1415.

In addition, the second structure 1420 includes an outer plate 1421, a power pcb contract outer 1422, a pcb spring base outer 1423, an outer spring 1424, and an outer contract plate 1425.

At this time, the center plate 1411 and the center contract plate 1415 disposed on the side of the piezo cap 1334 are composed of a fixed (-) positive plate and a (+) electrode connected to the center spring 1414.

In addition, the outer plate 1421 and the outer contract plate 1425 attached to the cable are composed of a fixed (+) electrode plate and a (-) electrode plate connected to the outer spring (1424).

At this time, the (-) electrode plate connected to the outer spring (1424) encloses the outer shape of the (+) electrode plate connected to the outer spring (1424), and the cable is fixed even when the transducer 1330 rotates so that current can flow. do.

That is, as long as the first structure 1410 and the second structure 1420 come into contact with the elasticity of the spring, the (+) electrode and the (-) electrode contact each other to allow current to flow. Therefore, even when the transducer 1330 rotates, the cable is fixed so that the internal wires are not twisted.

Second embodiment of the power connector

14A and 14B show a specific example of a pogo pin applied to a second embodiment of a power connector according to the present invention.

Figure 14a (a) to (c) shows an example of the internal structure of the pogo pin applied to the present invention.

The pogo pin is a structure in which a spring is inserted into the pin, and a spring is disposed at the bottom of the protrusion protruding from the outside, so that the protrusion is inserted into the inside by the spring and then discharged.

In addition, Figure 14b shows a specific example of the pogo pin applied to the present invention.

15 and 16 show a second embodiment of the power connector according to the present invention.

15 and 16, the power connector 1400 according to the present invention may include a first structure 1410 and a second structure 1420.

The first structure 1410 is disposed at the end of the handle part 1300, that is, on the side of the piezo cap 1334, and the second structure is disposed in the housing 1360 while being connected to a cable.

That is, the power connector 1400 including the first structure 1410 and the second structure 1420 according to the present invention is not a separate type, but is integrally disposed in the handle unit 1300.

At this time, the first structure 1410 includes a center plate 1432, a Pogopin Center Contract 1430 of the (+) electrode, and a Pogopin Outer Contract 1431 of the (-) electrode.

In addition, the second structure 1420 includes a Pogopin Plate 1442, a Pogopin Center 1440 of the (+) electrode, and a Pogopin Outer 1441 of the (-) electrode.

Here, the first structure 1410 attached to the piezo case has a structure of a contract of a + electrode and a contract of a-electrode to its outer shell.

In addition, the second structure 1420 is composed of at least one pogo pin of the + electrode and at least one pogo pin of the-electrode in the center.

The pogo pin allows current to flow through the second plate by fixing the cable even if the first plate rotates due to the rotation of the transducer.

That is, as long as the first structure 1410 and the second structure 1420 come into contact with the elasticity of the pogo pin, the (+) electrode and the (-) electrode contact each other to allow current to flow, and rotate while in contact with each other. As a result, the cable is fixed even when the transducer 1330 rotates, so that a problem such as twisting of the inner wire does not occur.

effect

The present invention relates to a laparoscopic apparatus, and more specifically, a pipe portion formed in a cylindrical shape and having a shaft therein, an upper jaw formed at one end of the pipe portion and having an opening in the length direction, and hingedly connected at one end with the upper jaw It is possible to provide a user with a laparoscopic instrument including a grip portion having a lower jaw, a handle portion having a lever unit, a spring unit, a transducer, a housing, and a power connector connected to the other end of the pipe portion.

The present invention can provide a laparoscopic apparatus capable of accurately cutting blood vessels by firmly gripping blood vessels.

In addition, the present invention can predict the force applied to the target when the lever is pulled, thereby providing a laparoscopic instrument with good feeling of use.

In addition, the present invention can provide a laparoscopic apparatus capable of neatly cutting blood vessels or tissues.

In addition, the present invention can provide a laparoscopic apparatus that minimizes wounds when cutting blood vessels or tissues.

In addition, the present invention can provide a laparoscopic apparatus that is easy to dissect the tissue with a structure in which three sides of the end of the jaw are gathered in the center, and the V-shaped structure securely fixes the tissue pad.

In addition, the present invention can provide a laparoscopic apparatus having one or more buttons, which can be used for output by pressing a button, and is provided by separating a Seal & Cut button and a Seal button.

In addition, the present invention can provide a laparoscopic mechanism that adjusts the pressure of the tissue by absorbing the spring in the first stage, the spring in the second stage, and the rubber block in two stages according to the strength of the pressure to the end-effector through one spring and a rubber block. have.

In addition, according to the present invention, the first, second, and third rubbers each absorb interference generated in a process of converting electric power into ultrasonic vibration energy, which is composed of a plurality of ceramic piezoelectric elements, thereby enabling stable operation.

In addition, in the present invention, the -electrode plate connected to the spring surrounds the outer shape of the +electrode plate connected to the spring, and the cable is fixed even when the transducer rotates so that a current flows.

In addition, according to the present invention, even if the first plate is rotated by the rotation of the transducer using the pogo pin, the cable is fixed to the second plate so that current flows.

However, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. I will be able to.

Detailed description of the preferred embodiments of the present invention disclosed as described above has been provided to enable those skilled in the art to implement and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, a person skilled in the art may use the components described in the above-described embodiments in a manner that combines them with each other. Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential features of the present invention. Therefore, the detailed description above should not be construed as restrictive in all respects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, the embodiments may be configured by combining claims that do not have an explicit citation relationship in the claims, or may be included as new claims by amendment after filing.

Claims (17)

Pipe part;
A clamp part formed at one end of the pipe part; And
Includes; a handle part connected to the other end of the pipe part and controlling the operation of the clamp part,

The tongs part,
A shaft inserted into the pipe part and through which ultrasonic waves generated from the handle part are transmitted; And
Along with the shaft, it includes a jaw for compressing at least a portion of the body and cutting at least a portion of the tissue or blood vessel of the body based on vibration energy and thermal energy generated by the ultrasonic wave,

The handle part,
A lever unit that compresses at least a part of the body by the shaft and the jaw through manipulation by a user, transmits the ultrasonic wave to the tissue or blood vessel, and controls the movement of the pipe part;
A transducer generating the ultrasonic wave; And
Includes; a power connector connected to the cable of the power supply to supply power,

The transducer,
A piezoelectric element generating the ultrasonic wave by using a piezoelectric phenomenon;
A horn amplifying the generated ultrasonic waves;
A piezo body receiving the amplified ultrasonic wave from the horn and moving back and forth to transmit the amplified ultrasonic wave to the shaft; And
A piezo case surrounding the piezoelectric element; Including,

A wheel pin connected to the lever unit; And
A wheel for rotating the pipe part based on the wheel pin; further comprising,

The power connector,
A first structure connected to an end of the transducer adjacent to the power connector; And
Including; a second structure connected to the cable of the power supply,
The first structure and the second structure are integrally manufactured in the handle part,

The first structure includes a first electrode and a first spring having elasticity,
The second structure includes a second electrode and a second spring having the elasticity,
In a state in which the first structure and the second structure are separated, the power is supplied from a cable of the power supply unit as the first electrode and the second electrode come into contact with each other.
The method of claim 1,
One end of the jaw is pivotally connected to at least a portion of the pipe portion,
The jaw is a scissor-type ultrasonic energy device, characterized in that it rotates about a connected pivot axis and engages with the shaft, thereby performing the pressing and cutting operation.
The method of claim 2,
Said Joe,
A support portion having a curved upper surface; And
A scissor-type ultrasonic energy device comprising: a clamp pad inserted into and connected to the lower end of the support.
The method of claim 3,
The scissor-type ultrasonic energy device, characterized in that the support and the clamp pad are inserted and coupled in a V-shape.
The method of claim 3,
Teflon is coated on the inner surface of the clamp pad facing the shaft for insulation,
Scissor type ultrasonic energy device, characterized in that the bottom surface of the Teflon coating has a lattice shape to support the pressing operation.
The method of claim 3,
The end of the support is formed in a streamlined shape,
The end portion is a scissor type ultrasonic energy device, characterized in that formed in a structure in which three sides are gathered to the center.
The method of claim 1,
When the user pulls the lever unit, the pipe portion moves in the direction of the handle portion, and the shaft and the jaw are closed, thereby compressing at least a part of the body.
The method of claim 7,
When the user releases the lever unit, the pipe portion moves in the direction of the clamp portion, and the shaft and the jaw are opened, thereby releasing the pressing operation.
The method of claim 1,
Scissor type ultrasonic energy device, characterized in that at least some of vibration energy and thermal energy applied to the cutting operation can be changed according to the shape of the shaft.
delete delete delete The method of claim 1,
When the first structure rotates through the wheel,
By maintaining the separated state, the second structure does not rotate,
The scissor type ultrasonic energy device, characterized in that the contact between the first electrode and the second electrode is maintained by using the elasticity of the first spring and the elasticity of the second spring.
The method of claim 1,
The first structure includes a first electrode,
The second structure includes a second electrode, and includes a pogopin having a spring inserted therein,
In a state in which the first structure and the second structure are separated, the power is supplied from a cable of the power supply unit as the first electrode and the second electrode come into contact with each other.
The method of claim 14,
When the first structure rotates through the wheel,
By maintaining the separated state, the second structure does not rotate,
Scissor type ultrasonic energy device, characterized in that the contact between the first electrode and the second electrode is maintained by using the elasticity of the spring in the pogo pin.
The method of claim 1,
In the cutting operation, a first button that provides only a seal function; And
Scissor type ultrasonic energy device, characterized in that it further comprises a second button that provides both the seal function and the cut function.
The method of claim 16,
The first button is disposed adjacent to the wheel, and is triggered by the user's finger force,
The second button is disposed adjacent to the lever unit, and is triggered in response to the user's manipulation of the lever unit.

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