KR101811272B1 - A surgical device for septal myectomy in hypertrophic cardiomyopathy - Google Patents

Abstract

The present invention relates to surgical device for hypertrophic cardiomyopathy. More specifically, the present invention relates to a device for treating hypertrophic cardiomyopathy, designed to shave off thickened ventricular septum on left ventricle and also to carry out a surgery on hypertrophic cardiomyopathy which is a disease that ventricular septum on left ventricle in heart of animals or human body becomes thick. According to an embodiment of the present invention, the surgical device for hypertrophic cardiomyopathy comprises: a semispherical blade part to shave off and scratch enlarged ventricular septum on left ventricle; a connection part connecting the blade part and a handle part together; and the handle part connected and fixated to the connection part and held by a user. Desirably, the handle is a scissor part having a scissor-like shape.

Description

Technical Field [0001] The present invention relates to a device for treating hypertrophic cardiomyopathy,

The present invention relates to a device for treating hypertrophic cardiomyopathy and, more particularly, to a device for treating hypertrophic cardiomyopathy, which is a disease in which the left ventricular ventricular septum thickens in the heart of an animal or a human body, .

Hypertrophic cardiomyopathy is a heart disease that causes thickening of the left ventricular wall without any other symptoms such as aortic stenosis or hypertension that may cause left ventricular thickening. It is found in 1 patient per 500 population, and various forms of LVH are observed. The most common and representative features are asymmetrical septal hypertrophy and occlusion of the left ventricular outflow tract of the variability.

Approximately 30% of patients with ventricular septal hypertrophy (obstruction between the left and right ventricles) observe obstruction of the left ventricular outflow tract at rest, and Valsalva maneuver, And decreased venous reflux), 30% of patients have additional occlusion of the left ventricular outflow tract.

FIG. 1 is a view showing the symptoms of hypertrophic cardiomyopathy and a conventional general operation method, and FIG. 2 is a diagram showing a conventional general operation method of hypertrophic cardiomyopathy.

Referring to FIGS. 1 and 2, a general method of operation for hypertrophic cardiomyopathy is a method of inserting a knife through the aortic valve into the left ventricle, followed by removing the enlarged left ventricular ventricular septum as shown. In other words, using a knife, a specialist sense of ventricular septal thickening is used to cut out.

The knife is inserted through the aortic valve so that the aortic valve is not damaged by the knife. In addition, the ventricular septum in the left ventricle should not damage parts. Therefore, this method is performed depending on the sense of the skilled specialist, and the success or failure of the operation is determined according to the proficiency of the specialist. During surgery, the extent to which the ventricular septum has been removed can not be confirmed from outside the heart, and the success or failure of the surgery is determined by the expertise of the surgeon. It is true that this method has many problems such as being able to be the target of medical dispute if the outcome of surgery is not good.

US Patent No. 8,906,052 B1 (Registered on December 09, 2014)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems of the prior art. It is an object of the present invention to easily and easily remove an enlarged left ventricular ventricular septum in the heart, and even a physician with low proficiency, And to provide a device for hypertrophic cardiomyopathy surgery which can perform cardiomyopathy.

Another object of the present invention is to provide a device for hypertrophic cardiomyopathy surgery which can predict, dictate, or confirm the situation in the heart outside the heart during the process of performing hypertrophic cardiomyopathy surgery.

Another object of the present invention is to provide a human-friendly surgical instrument which can increase the probability of success of hypertrophic cardiomyopathy surgery and pursue a healthy life of a human being.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

SUMMARY OF THE INVENTION The present invention has been made in order to achieve the above object, and an apparatus for treating hypertrophic cardiomyopathy according to a preferred embodiment of the present invention includes a hemispherical blade unit for scraping off an enlarged left ventricular ventricular septum; A connecting portion connecting the knife portion and the handle portion; And a grip portion that is connected to the connection portion and can be held by the user.

Preferably, the blade portion is slidably coupled to the connection portion, and the connection portion is formed with a fixing portion for fixing the endoscope.

Preferably, the connecting portion has a ladder shape with respect to a part or the whole.

Preferably, a support portion for pressing the outside of the heart is formed at one side of the mechanism, and a spring is provided between the support portion and the connection portion, and the support portion is elastically supported by the spring.

Preferably, the handle is a scissors having a scissors shape, and a locking part is provided between both scissors to adjust the gap between the scissors and the support, But can be locked.

According to another preferred embodiment of the present invention, there is provided a device for treating hypertrophic cardiomyopathy, comprising: a hemispherical blade portion for scraping off an enlarged left ventricular ventricular septum; A connecting portion connecting to the blade portion; A support for pressing against the outside of the heart; And a scissors-shaped scissors portion connected to the connection portion and the support portion.

According to yet another preferred embodiment, the apparatus for hypertrophic cardiomyopathy includes a blade for scraping off the enlarged left ventricular ventricular septum; A connecting portion connecting the knife portion and the handle portion; And a knob portion that is fixedly connected to the connection portion to be held by the user, wherein the blade portion has a through hole formed at the center thereof and a blade edge formed at one side of the through hole.

According to yet another preferred embodiment, the apparatus for hypertrophic cardiomyopathy includes a blade for scraping off the enlarged left ventricular ventricular septum; A connecting portion connecting to the blade portion; A support for pressing against the outside of the heart; And a scissors portion having a scissors shape connected to the connection portion and the support portion, wherein the blade portion has a through hole formed at the center thereof and a blade edge formed at one side of the through hole.

As described above, the apparatus for hypertrophic cardiomyopathy of the present invention can easily and easily perform the operation of hypertrophic cardiomyopathy even if a physician having a low proficiency, regardless of proficiency of a specialist, is removed by removing the method of scraping off the enlarged ventricular septum, In the process of performing hypertrophic cardiomyopathy surgery, it is possible to predict, dictate, or confirm the intra-cardiac condition within the heart, thereby increasing the probability of success of surgery and reducing the doctor's effort and concentration.

In addition, the support is formed so that the ventricular septal thickness can be gauged from the outside and the ventricular septum is excessively cut through the function of not exceeding the preset interval in the portion where the ventricular septal can be excessively cut off It is possible to prevent a dangerous risk.

In addition, there is an advantage in that it is a human-friendly surgical instrument that can enhance the probability of successful operation of hypertrophic cardiomyopathy and achieve a healthy life of a human being.

Brief Description of the Drawings Figure 1 shows a diagram showing the symptoms of hypertrophic cardiomyopathy and a conventional general surgical method.
2 is a diagram showing a conventional general operation method of hypertrophic cardiomyopathy.
3 is a perspective view of a surgical instrument according to a preferred embodiment of the present invention.
4 is a sectional view of a surgical instrument according to a preferred embodiment of the present invention.
FIG. 5 shows a perspective view and a surgical operation of a device for treating hypertrophic cardiomyopathy according to another preferred embodiment of the present invention.
6 shows a perspective view and a surgical operation of a device for treating hypertrophic cardiomyopathy according to another preferred embodiment of the present invention.
7 shows a perspective view and a surgical operation of a device for treating hypertrophic cardiomyopathy according to another preferred embodiment of the present invention.
8 is a perspective view of a device for the treatment of hypertrophic cardiomyopathy according to another preferred embodiment of the present invention.
9 shows a perspective view and a surgical operation of a device for treating hypertrophic cardiomyopathy according to another preferred embodiment of the present invention.
10 is a cross-sectional view of the blade portion of the instrument for the treatment of hypertrophic cardiomyopathy of Figs. 8 and 9. Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. &Quot; and / or "include each and every combination of one or more of the mentioned items. ≪ RTI ID = 0.0 >

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

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

Fig. 3 is a perspective view of a surgical instrument according to a preferred embodiment of the present invention, and Fig. 4 is a cross-sectional view thereof.

3 and 4, the apparatus for treating hypertrophic cardiomyopathy of the present invention includes a knife portion 10, a connection portion 20, and a handle portion 30. As shown in FIG.

The conventional apparatus for treating hypertrophic cardiomyopathy shown in FIGS. 1 and 2 is a method of cutting out a hypertrophic ventricular septum using a knife, whereas the apparatus for hypertrophic cardiomyopathy of the present invention is a method of scraping and scraping. That is, the apparatus for treating hypertrophic cardiomyopathy of the present invention is inserted into the left ventricle through the aortic valve, and then pulls the handle 30 from the outside of the heart, thereby scraping off the enlarged ventricular septum by the blade 10 . Backward movement of the handle 30 cuts the ventricular septum enlarged by the blade portion.

The blade portion 10 is preferably made of metal, more preferably stainless steel is used but is not limited thereto. The shape of the blade portion 10 preferably has a hemispherical shape as shown in the figure. This is to make it possible to easily cut away the ventricular septum enlarged by the blade portion 10 by pulling the handle 30. The blade edge (12) that cuts off the enlarged ventricular septum should be a sharp blade, and the blade body (14) should be non-sharp and soft to prevent damage to the heart.

The connection portion 20 is a portion connecting the blade portion 10 and the handle portion 30. The connecting portion 20 is also preferably made of metal, more preferably stainless steel, but is not necessarily limited thereto.

The connecting portion preferably has a ladder shape as shown. This is to reduce the weight, but also to have a solid support and durability. The ladder shape is formed so as to be limited to the whole or a part of the connecting portion. It is needless to say that various shapes such as a straight type and a horizontal type can be applied to the connecting portion.

Preferably, as shown in FIG. 4, the blade portion 10 is sloped and joined as shown in the connecting portion 20. As shown in FIG. The blade portion 10 may be coupled to the connection portion 20 at right angles. However, in order to facilitate insertion of the blade portion 10 without damaging the valve when the blade portion 10 is inserted into the left ventricle through the valve plate, The blade portion 10 is preferably connected to the connecting portion 20 at an angle.

One or more fixing portions 22 are formed on the side surface of the connection portion 20 to fix the endoscope. That is, the fixing portion 22 is for fixing the connecting line of the endoscope. The surgeon can confirm the images in the left ventricle taken from the endoscope through the monitor screen connected to the endoscope during the operation of the hypertrophic cardiomyopathy. Thus, the operation can be performed while grasping the position of the ventricular septum to be shaved, the degree, amount and depth of the cut ventricular septum, thereby increasing the probability of success of the operation.

According to the drawings, the blade portion 10 and the connecting portion 20 are fixed to each other, but they can be fastened so as to be detachable from each other. In the case where the knife portion 10 and the connecting portion are fastened so that they can be separated from each other, only the knife portion 10 can be removed and replaced at the time of surgery for various patients. This means that only the blade part will be a single use item, and the remaining part can be recycled again.

The handle 30 is connected to the connection portion 20 and is a part that can be held by the user (doctor at the time of surgery) by hand. The apparatus for treating hypertrophic cardiomyopathy of the present invention is a device for treating hypertrophic cardiomyopathy in which the blade portion 10 and the connecting portion 20 are inserted into the left ventricle through the valve plate and then the blade portion 10 is placed against the enlarged ventricular septum, 30), the ventricular septum enlarged by the blade portion 10 is shaved. In other words, the enlarged ventricular septum is scraped off. It is needless to say that the handle 30 may be made of various materials such as metal, plastic, and rubber.

Fig. 5 shows a perspective view and a surgical operation of a device for treating hypertrophic cardiomyopathy according to another preferred embodiment of the present invention.

Referring to FIG. 5, a support portion 40 is formed on the opposite side of the blade portion 10. The support portion 40 is a portion which presses against the outside of the heart. That is, the support portion 40 is a portion to be elastically supported. The support 40 serves as a "diction" for indicating the position of the blade located in the left ventricle from the outside of the heart. That is, the position of the blade portion located in the left ventricle and the position of the ventricular septum to be cut can not be known without confirming the monitor image by the endoscope. The position of the end of the support portion 40 located outside the heart, The locus of the blade part and the trajectory of the blade part can be known indirectly through the past trajectory. In addition, the support 40 presses the outer surface of the heart, thereby having an effect of pressing the blade 10 against the enlarged ventricular septum. As a result, the enlarged ventricular septum can be easily removed by the blade portion. For this reason, by providing the support 40, the probability of successful operation of hypertrophic cardiomyopathy can be increased.

Preferably, a ball, a hemispherical ball or a ball bearing is formed at an end of the support portion 40. This is to prevent damage to the outer surface of the heart by the support portion 40.

A locking portion 60 is formed between the connection portion 20 (the blade portion 10) and the support portion 40. [ The locking portion 60 is for keeping the gap between the support portion 40 and the connection portion 20 constant after the adjustment. In other words, if the locking portion is locked using the locking portion in order to maintain this state after the gap between the connecting portion (blade portion) and the supporting portion is enlarged, the connecting portion 20 and the supporting portion 40 maintain the gap therebetween. This is because the gap between the blade portion 10 and the support portion 40 is adjusted and maintained. This interval is an indicator that indirectly indicates how thick the ventricular septum is. Therefore, it is necessary to first estimate the thickness of the ventricular septum to the operator, and secondly, to determine the thickness of the ventricular septum at the pre- The ability to escape from the ventricles serves as a safeguard against the risk of excessive ventricular septal clearing. The locking portions 60 described below all have the same effect.

Fig. 6 shows a perspective view and a surgical operation of a device for treating hypertrophic cardiomyopathy according to another preferred embodiment of the present invention.

The instrument for hypertrophic cardiomyopathy surgery shown in Fig. 6 has a scissors-like grip portion 30. The scissors-like grip portion 30 of both scissors is worn like ordinary scissors so that the distance between the support portion 40 and the blade portion 10 is reduced or increased so as to increase the distance between the support portion 40 and the blade portion 10 . If the gap between the support part 40 and the blade part 10 is fixed to a fixed value, it may be fixed through a locking part 60 on both sides of the scissors part. That is, the locking portion adjusts the distance between both sides of the scissors so as to adjust the gap between the support and the blade so as to lock them. The locking portion 60 has a serrated cross section. Thereby, the interval can be adjusted and the adjusted interval can be kept constant.

FIG. 7 shows a perspective view and a surgical operation of a device for treating hypertrophic cardiomyopathy according to another preferred embodiment of the present invention.

7 is an embodiment similar to the embodiment of the apparatus for treating hypertrophic cardiomyopathy shown in FIG. 5, except that a spring 67, a bolt 66, and a nut 67 are formed between the connection portion 20 and the support portion 40 . The connection portion 20 and the support portion 40 are elastically supported by a spring provided between the connection portion 20 and the support portion 40. [ The distance between the connecting portion 20 and the supporting portion 40 is adjusted by tightening or loosening the nut 67 fastened to the bolt 66. [ When the nut 67 is tightened, the support portion 40 is pressed to narrow the gap between the connection portion 20 and the support portion 40. On the contrary, when the nut is released, the support portion 40 is opened by the elasticity of the spring 67, The gap between the support portion 20 and the support portion 40 is opened.

8 is a perspective view of an apparatus for hypertrophic cardiomyopathy surgery according to another preferred embodiment of the present invention.

The apparatus for treating hypertrophic cardiomyopathy shown in Fig. 8 is a structure in which the shape of the blade portion 10 is formed with a long hole (elongated circular hole 16). That is, the blade portion 10 has a through-hole 16 formed at the center thereof and a blade edge 12 formed on one side of the through-hole 16. Protrusions 17 are formed on both sides of the blade portion 10 and the protrusions 17 are inserted into the inner holes 19 of the connecting portions 20 on both sides. The engaging protrusion 18 formed on the inner side of the connecting portion 20 serves as a catching jaw for preventing the blade portion from further rotating. As shown, the blade portion 10 has a slightly curved shape, i.e., a slightly curved shape.

When cutting the ventricular septum enlarged by the blade edge 12, the blade portion 10 should be supported without rotating. In the present invention, the protruding portion 17 of the blade portion is inserted into the hole 19, so that the blade portion 10 can freely rotate. In order to prevent the blade section from rotating at any angle, a locking protrusion 18 is formed inside the connection section 20 to prevent rotation of the blade section. Accordingly, the blade portion 10 can not be rotated by a predetermined angle or more by the locking protrusion 18, so that the ventricular septum enlarged by the blade edge 12 of the blade portion is cut off.

In the case of hypertrophic cardiomyopathy, the blade portion is placed in the left ventricle, and when the blade portion 10 is placed on the enlarged ventricular septal portion, the blade edge 12 of the blade portion touches the ventricular septum. In this state, when the pull tab 30 is pulled, the blade edge 12 of the blade portion shaves off the enlarged ventricular septum. This will be better understood with reference to FIG.

10 is a cross-sectional view of the blade portion of the apparatus for the treatment of hypertrophic cardiomyopathy of Figs. 8 and 9. Fig.

Referring to FIG. 10, the ventricular septum is cut by the blade edge 12, which is enlarged. It is possible to increase the interval of the width L of the through hole in order to increase the amount of the ventricular septum cut by the blade 10 at one time. In other words, by using a surgical instrument having a blade having a wide width, it is possible to increase the amount of the ventricular septum cut out at a time. The surgeon may have several surgical instruments with various widths of the hole at the time of surgery, so that the surgeon can select a surgical instrument having a through hole having an appropriate width when necessary.

Fig. 9 shows a perspective view and a surgical operation of a device for treating hypertrophic cardiomyopathy according to another preferred embodiment of the present invention.

9 is a view in which only the shape of the blade unit 10 is changed as compared with FIG. That is, in the surgical instrument of Fig. 9, the blade portion has the shape of a straight blade, not the hemispherical shape shown in Fig. The other contents are as described above.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10:
12: Edge of the blade
14: blade body
16: through hole 17:
18: Hook 19: Hole
20: Connection
22:
30: Handle portion
40: Support
42: Ball (fixed ball or ball bearing)
50: scissors
60: locking part
66: bolt 67: nut
68: spring
80: endoscope 82: lamp

Claims (23)

In an instrument for hypertrophic cardiomyopathy,
A hemispherical blade portion for scraping off the enlarged left ventricular ventricular septum;
A connecting portion connecting the knife portion and the handle portion;
And a grip portion that is fixedly connected to the connection portion and can be held by the user,
Wherein the blade portion is slidably coupled to the connection portion. delete The method according to claim 1,
Wherein the connection portion is formed with a fixing portion for fixing the endoscope. The method according to claim 1,
Wherein the blade portion and the connection portion are separable from each other. The method according to claim 1,
Wherein the connecting portion has a ladder shape in part or in whole. The method according to claim 1,
Wherein a support portion for pressing the outside of the heart is formed on one side of the device. The method according to claim 6,
And a ball or a ball bearing is formed at an end of the support portion. The method according to claim 6,
Wherein a spring is provided between the support portion and the connection portion, and the support portion is elastically supported by the spring. 9. The method of claim 8,
Wherein the gap between the support portion and the connection portion is adjusted by bolts and nuts. The method according to claim 1,
Wherein the handle is a scissors portion having a scissors shape. 11. The method of claim 10,
Wherein a locking part is provided between both sides of the scissors so as to adjust the distance between both sides of the scissors and then lock the scissors. 12. The method of claim 11,
Wherein the locking portion has a saw-tooth cross-section. In an instrument for hypertrophic cardiomyopathy,
A hemispherical blade portion for scraping off the enlarged left ventricular ventricular septum;
A connecting portion connecting to the blade portion;
A support for pressing against the outside of the heart;
And a scissors-shaped scissors portion connected to the connection portion and the support portion. 14. The method of claim 13,
And a ball or a ball bearing is formed at an end of the support portion. 14. The method of claim 13,
Wherein a locking part is provided between both sides of the scissors so that the gap between both the scissors and the supporting part can be adjusted by adjusting the distance between both sides of the scissors, . In an instrument for hypertrophic cardiomyopathy,
A blade portion for scraping off the enlarged left ventricular ventricular septum;
A connecting portion connecting the knife portion and the handle portion;
And a grip portion that is fixedly connected to the connection portion and can be held by the user,
Wherein the blade portion has a curved shape and has a through hole at the center thereof, a blade edge is formed at one side of the through hole, protrusions inserted into holes formed on both inner side surfaces of the connecting portion are formed respectively,
Wherein the connection portion is formed with a locking protrusion to prevent the blade portion from rotating by a predetermined angle or more. In an instrument for hypertrophic cardiomyopathy,
A blade portion for scraping off the enlarged left ventricular ventricular septum;
A connecting portion connecting to the blade portion;
A support for pressing against the outside of the heart;
And a scissors-shaped scissors portion connected to the connection portion and the support portion,
Wherein the blade portion has a curved shape and has a through hole at the center thereof, a blade edge is formed at one side of the through hole, protrusions inserted into holes formed on both inner side surfaces of the connecting portion are formed respectively,
Wherein the connection portion is formed with a locking protrusion to prevent the blade portion from rotating by a predetermined angle or more. 18. The method according to claim 16 or 17,
Wherein the connection portion is formed with a fixing portion for fixing the endoscope. 18. The method according to claim 16 or 17,
Wherein a support portion for pressing the outside of the heart is formed on one side of the device. 20. The method of claim 19,
And a ball or a ball bearing is formed at an end of the support portion. 20. The method of claim 19,
Wherein a spring is provided between the support portion and the connection portion, and the support portion is elastically supported by the spring. 17. The method of claim 16,
Wherein the handle is a scissors portion having a scissors shape. 23. The method of claim 22,
Wherein a locking part is provided between both sides of the scissors so that the gap between both the scissors and the supporting part can be adjusted by adjusting the distance between both sides of the scissors. .

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