JP2001005378A - Simulator for training of operation technique - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a trainee to learn the operation technique of an organ operation and to improve the technique, even without depending on clinical experience by enabling the simulated experience approximating actual operation by human body. SOLUTION: An aperture 5, corresponding to the incised part of the chest wall incised by a knife, etc., is formed in a top plate section 3 corresponding to the chest wall of the human body, and a space 4 corresponding to the thoracic cavity of the human body is formed below the top plate section 3. A substitutive 11 simulating the organs or their section to be operated is mounted in the space 4. The substitutive object 11 is subjected to excision and joining by knives, forceps 12, suture needle 13, etc., to be inserted from the aperture 5 into the space 4, by which the trainee conduct training of the operation techniques.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simulator for training a surgical technique used for learning and proficient in surgical techniques of organ surgery performed by incising a chest wall of a patient.

[0002]

2. Description of the Related Art In recent years, in the field of surgery, various new surgical methods have been tried to reduce the burden on a patient as much as possible. Minimally invasive cardiac surgery (MICS)
And so on.

[0003]

However, the new surgical method takes a long time to learn the surgical technique,
In particular, since MICS requires a very high level of surgical technique, it is currently the case that only a very small number of operators with a great deal of clinical experience have mastered it.

In addition, education, experimentation, and practice for learning surgical techniques cannot be performed using a human body, and the body of an animal is anatomically significantly different from the human body. It was said that it was difficult to master advanced surgical techniques without clinical experience because they could not enjoy the same sensation as surgery.

Accordingly, the present invention provides a novel apparatus for a surgical operation training simulator that provides a simulated experience similar to an actual operation performed by a human body, so that advanced surgical techniques can be acquired without clinical experience. The technical task is to be able to improve the level of surgical procedures at the same time as possible.

[0006]

In order to solve the above problems, a simulator for surgical technique training according to the present invention comprises a ceiling plate corresponding to a chest wall of a human body, an opening corresponding to an incision in the chest wall. Is formed, and a space corresponding to the thoracic cavity of the human body is formed below the top plate, and in the space,
It is characterized in that a substitute imitating an organ or a part to be operated on is removably attached.

In this simulator, the top panel corresponds to the chest wall of the human body, the opening formed in the top panel corresponds to an incision in the chest wall, and the simulator is formed below the top panel. The space corresponds to the thoracic cavity of the human body.

Therefore, a scalpel, a scissor, or the like is inserted into the space formed below the top plate from the opening formed in the top plate.
By inserting a surgical tool such as forceps, incision, resection or anastomosis of the replacement attached in that space,
By inserting a surgical tool from the incision formed in the chest wall of the human body into the thoracic cavity, a simulated experience similar to the actual operation of incising, resecting or anastomosis of the organ in the thoracic cavity or the site to be operated is possible .

[0009] The top plate corresponding to the chest wall of the human body,
By providing a slide plate that can change the size of the opening corresponding to the incision in the chest wall, it is possible to simulate the MICS where the incision in the chest wall is small and advanced surgical techniques are required. It is possible to learn the surgical technique without depending on clinical experience and to improve the technique.

A position adjusting mechanism and an angle for changing a mounting position and a mounting angle of an alternative to an opening of a top plate in accordance with a position and an orientation of an organ or a part to be operated on the incision in a chest wall of a human body. With the configuration provided with the adjusting mechanism, a simulated experience more similar to anatomical surgery can be provided.

[0011]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a perspective view showing an example of a surgical technique training simulator according to the present invention, and FIG. 2 is an exploded view thereof.

In the surgical technique training simulator shown in this embodiment, a pair of left and right side plate portions 2R and 2L is formed on a substrate 1 placed on a desk or table or the like which looks like an operating table. A top plate 3 corresponding to the chest wall of the human body is formed from the upper end of the 2L to the rear end of the substrate 1, and a space 4 corresponding to the chest cavity of the human body is formed below the top plate 3. Have been.

The top plate portion 3 has a highest portion located between the upper ends of the side plate portions 2R and 2L formed on a horizontal plane, and the height from the substrate 1 to the horizontal plane substantially corresponds to the chest thickness of the human body. 1
An opening 5 corresponding to an incision made by cutting a chest wall of a human body by making a long hole of 80 mm wide and 160 mm long is formed in the horizontal plane at a portion of about 50 to 200 mm. Screw holes 6 are provided at the four corners around 5.

The top plate 3 is provided with a pair of front and rear slide plates 7F and 7B for changing the size of the opening 5, and a pair of left and right slide plates 7R and 7L. The slide plates 7F to 7L, the substrate 1, the side plates 2R and 2L, the top plate 3 and the like are formed of hard plastic or light alloy.

The slide plates 7F and 7B have openings 5
The width of the opening 5 is variably adjusted by approaching or moving away from the width direction of the opening 5. A pair of long holes 8, 8 extending in the width direction of the opening 5 are formed in parallel on both left and right ends. I have. On the other hand, the slide plates 7R and 7L are adapted to variably adjust the length of the opening 5 by approaching or moving away from each other in the length direction of the opening 5, and the opening 5 is provided at each of the front and rear ends.
A pair of elongated holes 9, 9 extending in the length direction are formed in parallel.

Then, the slide plates 7R, 7L are superimposed in a grid pattern from above the slide plates 7F, 7B, and the slots 8 and 9 are communicated with each other at the overlapping portion. , 9 are communicated with the screw holes 6 of the top plate 3, and the slide plates 7 F, 7 B are moved in the width direction of the opening 5 by a total of four fastening screws 10 inserted into the communication portions and screwed into the screw holes 6. The slide plates 7R and 7L are slidably mounted in the length direction of the opening 5, respectively.

The lengths of the long holes 8 of the slide plates 7F and 7B are each set to 20 mm, and the lengths of the long holes 9 of the slide plates 7R and 7L are each set to 40 mm. The size of 5 is the maximum size width 80mm x
It can be freely variably adjusted within the range of 160 mm in length to 40 mm in minimum size × 80 mm in length.

A space 4 formed below the top plate 3
Inside, a substitute imitating an organ such as a heart or a substitute imitating a part to be operated on the organ is detachably attached. For example, the substitute 1 shown in FIGS.
Reference numeral 1 denotes a ring-shaped sheet having an outer diameter of about 100 mm, which imitates the annulus of the mitral valve at the boundary between the left ventricle and the left atrium of the heart.

Further, the substitute imitating the organ or the part to be operated on is formed of an elastic material which can be incised, resected or anastomosed by a surgical tool.
It is formed of an elastic material such as latex or urethane rubber which can be anastomosed by the suturing needle 13 held at the end of the second needle. In addition,
The substitute 11 is detachably attached to a stage 14 installed in the space 4 below the top plate 3.

The mounting table 14 has a circular plate 16 which can be inserted between the side plates 2R and 2L, and a circular hole 16 having a size corresponding to that of the substitute 11 formed of a ring-shaped sheet. A plurality of pins 17, 17-or hooks are protruded at regular intervals along the circumference of the substitute, and small holes 18, 18-formed in the periphery of the substitute 11 are fitted to the pins 17, 17-or hooks. The replacement 11 is fixed by hooking.

The mounting table 14 has a pair of bottom girder portions 19R, 19L formed along both left and right ends of a rectangular plate 15 slidingly contacting the inner surfaces of the side plate portions 2R, 2L. And a horizontally elongated hole 20 penetrating the side surface thereof.
And a concave groove 22 along which the nut 21 is slidably fitted is provided along the inside of the elongated hole 20.

The fastening screw 2 is inserted from a vertically long hole 23 provided in the side plate portions 2R, 2L into a horizontally long hole 20 provided in the bottom girder portions 19R, 19L of the stage 14.
4 and 24 are screwed into the respective nuts 21 fitted in the concave grooves 22 of the bottom girder portions 19R and 19L, whereby the stage 1 is mounted.
4 is clamped in a state of being bridged between the side plate portions 2R and 2L, and is installed in the space 4.

Further, a vertically elongated hole 23 provided in the side plate portions 2R, 2L, a horizontally elongated hole 20 provided in the bottom girder portions 19R, 19L of the mounting table 14, and fastening to the elongated holes 20, 23. With the screw 24 and the nut 21 slidably fitted in the concave groove 22 of the bottom girder portions 19R and 19L, the stage 14 is vertically and horizontally elongated along the elongated hole 23.
A position adjustment mechanism for moving the mounting position of the substitute 11 by moving the mounting table 14 in the front-rear direction along 0;
An angle adjustment mechanism is configured to change the mounting angle of the substitute 11 by tilting the axis of rotation 4 in the front-rear direction.

According to this, according to the position or orientation of the organ or its operation site with respect to the incision in the chest wall of the human body,
Since the position and orientation of the substitute 11 with respect to the opening 5 of the top plate 3 can be variably adjusted, a simulated experience more anatomically more similar to an operation on a human body is possible.

That is, for example, mitral valve annuloplasty is performed by incising the sternum at the center of the patient's chest wall. At this time, the annulus of the mitral valve is removed from the incision by a fixed amount. It is located at a distance and at about 3
The stage 14 is tilted by about 0 °, so that the stage 14 is
R, 2L, the screws 24, 24 are loosened once, and the mounting table 14 is moved up and down and back and forth as shown in FIG. 1 to replace the substitute 11 imitating the annulus of the mitral valve with the chest wall. At the same time as being shifted by a certain distance from the opening 5 of the top plate 3 corresponding to the incision, the mounting table 14 is tilted so that the substitute 11 is about 30 ° with respect to the opening 5. By tilting, it is made anatomically very similar to actual surgery.

In this state, the opening 5 formed in the top plate 3
By inserting the forceps 12 into the space 4 below from above and repeating the practice of anastomosis of the substitute 11 with the suture needle 13 held at the tip of the forceps 12, the forceps are inserted into the thoracic cavity from the incision formed in the chest wall of the patient. And an anastomotic surgical technique of anastomosis of the annulus of the mitral valve with a suture needle held at the tip of the forceps.

In particular, annuloplasty, in which the enlarged mitral annulus of a patient with mitral valvular insufficiency is trimmed using a ring while shaping it, requires a very advanced surgical technique.
According to the simulator of the present invention, the surgical technique can be surely acquired.

Further, if the size of the opening 5 is reduced by the slide plates 7F, 7B, 7R, 7L provided on the top plate 3, a MICS simulation experience is also possible. In addition to learning the surgical technique, the level of the surgical technique can be improved.

Although the substitute 11 is similar to a mitral valve annulus, the alternative according to the present invention is not limited to this, and may be a tricuspid valve annulus. Alternatively, a valve body of an aortic valve or a pulmonary valve or a peripheral part thereof, or a ventricular septum may be imitated. Further, the present invention is not limited to the one that simulates only the operated part of the organ, and may be one that simulates the whole shape of the organ.

[0030]

According to the present invention, a simulated experience that is anatomically similar to an operation on a human body can be performed, and advanced surgical techniques such as MICS can be acquired without clinical experience, or the techniques can be upgraded. There is a very good effect that it can be done.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a surgical technique training simulator according to the present invention.

FIG. 2 is an exploded view of the surgical technique training simulator shown in FIG. 1;

[Explanation of symbols]

 3 top plate section 4 space 5 opening 7F to 7L slide plate 11 substitute

Continued on the front page (72) Inventor Takashi Tanaka 3-604-18 Matsumicho, Kanagawa-ku, Yokohama-shi, Kanagawa F-term (reference) 2C032 CA03

Claims (5)

[Claims] 1. A top plate (3) corresponding to a chest wall of a human body,
An opening (5) corresponding to an incision in the chest wall is formed, and a space (4) corresponding to a thoracic cavity of a human body is formed below the top plate (3). )
A simulator for surgical technique training, wherein a substitute (11) imitating an organ or a part to be operated on is removably attached. 2. A slide plate (7F, 7B, 7R, 7L) for changing the size of the opening (5) on the top plate (3).
The surgical technique training simulator according to claim 1, further comprising: 3. A surgical operation training simulator according to claim 1, wherein a stage (14) on which the substitute (11) is removably attached is provided below the top plate (3). 4. The simulator for training surgical procedures according to claim 1, wherein the substitute (11) is formed of an elastic material which can be cut, excised or anastomosed by a surgical instrument. 5. A device according to claim 1, further comprising: a position adjusting mechanism for changing a mounting position of said substitute (11); and an angle adjusting mechanism for changing a mounting angle of said substitute (11). The surgical technique training simulator described.