Abstract:
To provide a compact surgical training device for enabling skills of techniques to be improved efficiently and effectively before acquiring clinical experiences in surgeries with high degrees of difficulty, particularly, vascular anastomosis, the surgical training device  10  to perform simulations and practices of vascular anastomosis is provided with a first holder  110  that holds a first pseudo blood vessel BV 1,  a second holder  120  that holds a second pseudo blood vessel BV 2  to be anastomosed to the first pseudo blood vessel BV 1,  and a support mount  100  that supports the first and second holders  110, 120  so as to cause the entire surgical training device  10  to stand, while enabling the first and second pseudo blood vessels BV 1,  BV 2  to be placed in respective arbitrary positions.

Description:
TECHNICAL FIELD 
       [0001]    The present invention relates to a surgical training device used in training in surgeries, particularly, vascular anastomosis. 
       BACKGROUND ART 
       [0002]    In recent years, surgeries have made dramatic progress with remarkable technological innovation. With the progress, surgical techniques are continuously made complicated and specialized, and the experiences and skills of operators are more strongly demanded than ever before. One of the techniques significantly dependent on the ability of the operator includes vascular anastomosis. 
         [0003]    As the surgery for conducting vascular anastomosis, for example, there is the coronary artery bypass operation performed on patients having ischemic heart diseases such as cardiac infarction. This is an operation for exposing the heart and anastomosing a bypass blood vessel to send blood from another blood vessel to the coronary artery with the occurrence of stenosis that is the cause of ischemia. The operation is recognized as a method for enabling the blood circulation reconstruction effect to be maintained for the long term. 
         [0004]    Further, as well as the operation, there are lymph duct veinlet anastomosis on lymphatic edema, cerebrovascular anastomosis applied to part of cases of cerebral infarction, cerebral ischemia cases by Willis arterial cycle occlusive disease (moyamoya disease) and the like, etc. 
         [0005]    Then, devices for training in suture techniques of the surgery have conventionally been disclosed as a surgical suture practice instrument (for example, see Patent Document 1). 
       PRIOR ART DOCUMENT 
     Patent Document 
       [0006]    Patent Document 1: Japanese Patent Publication No. S60-35150 
       SUMMARY OF INVENTION 
     Problems to be Solved by the Invention 
       [0007]    In the surgical suture practice instrument as disclosed in above-mentioned Patent Document 1, the subject of suture is a cloth member, is not able to contribute to training in anastomosis for anastomosing the blood vessels in actual surgeries, and has the problem of not being actual simulations, practices and training in surgeries with high degrees of difficulty such that the mutual angles are different between the blood vessel to be sutured and the blood vessel to suture. 
         [0008]    Accordingly, to improve skills in the surgery, particularly, vascular anastomosis as described above, acquiring actual surgery experiences is only the method, and under present circumstances, it has been difficult to improve skills efficiently and effectively. 
         [0009]    The present invention was made with attention directed toward the above-mentioned circumstances in the medical educational field, and it is an object of the invention to provide a compact surgical training device for enabling skills of techniques to be improved efficiently and effectively before acquiring clinical experiences in surgeries with high degrees of difficulty, particularly, vascular anastomosis. 
       Means for Solving the Problem 
       [0010]    To attain the aforementioned object, the present invention provides a surgical training device to perform simulations and practices of vascular anastomosis, which is characterized by having a support mount of the surgical training device, a first holder disposed on the support mount to hold a first pseudo blood vessel, and a second holder disposed on the support mount to hold a second pseudo blood vessel to be anastomosed to the first pseudo blood vessel, where the first holder holds the first pseudo blood vessel to enable a front end portion of the first pseudo blood vessel to be placed in an arbitrary position in the second pseudo blood vessel held by the second holder and in an arbitrary direction with respect to the axis direction of the second pseudo blood vessel. 
         [0011]    Herein, in a first usage mode of the surgical training device of the invention, the first holder is characterized by having a hold member, formed on the top surface of the support mount, having a single or a plurality of grooves with different diameters to fix and hold the first pseudo blood vessel. 
         [0012]    Further, in a second usage mode of the surgical training device of the invention, the first holder is characterized by being a multijoint movable holder that is coupled to the support mount and that enables the first pseudo blood vessel to be shifted to an arbitrary position while holding the first pseudo blood vessel in the axis direction of the first pseudo blood vessel. 
         [0013]    Then, in the first and second usage modes of the surgical training device, the second holder is characterized by being a multijoint movable holder that is coupled to the support mount and that enables the second pseudo blood vessel to be shifted arbitrarily while holding the second pseudo blood vessel in the blood vessel axis direction of the second pseudo blood vessel. 
         [0014]    Further, in a third usage mode of the surgical training device of the invention, it is also possible to use the first holder and the second holder as fix holders formed in an upper portion of the support mount to fix and hold the first pseudo blood vessel and the second pseudo blood vessel in the axis direction of each blood vessel, respectively. 
         [0015]    Herein, the movable holder is characterized by having a flexible arm portion comprised of a structure for alternately coupling a plurality of connector members each in the shape of a dumbbell having balls at opposite ends of a cylinder, and a plurality of cylindrical bodies into which the balls of the connector members are fitted to hold the balls rotatably. 
       Advantageous Effect of the Invention 
       [0016]    According to the surgical training device of the invention, it is possible to reproduce environments closer to clinical experiences with a simplified configuration, and to contribute to actual simulations, practices and training in surgeries with high degrees of difficulty such that mutual angles are different between the blood vessel to be sutured and the blood vessel to suture before acquiring actual surgical experiences. 
         [0017]    Further, since the structure is simplified, the device is extremely compact and inexpensive, and is easy to introduce to the medical educational field. 
     
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         [0018]      FIG. 1  is an entire schematic view of a surgical training device according to a first usage mode of the invention; 
           [0019]      FIG. 2  is an exploded perspective view showing outlines of a support mount and a first holder in the surgical training device as shown in  FIG. 1 ; 
           [0020]      FIG. 3  is a schematic view showing an outline of a second holder in the surgical training device as shown in  FIG. 1 ; 
           [0021]      FIG. 4  contains schematic views showing an outline of a flexible arm portion in the surgical training device as shown in  FIG. 1 ; 
           [0022]      FIG. 5  is a schematic view showing an example of a hold member provided with a plurality of grooves; 
           [0023]      FIG. 6  is a schematic view showing an example of end-side anastomosis in vascular anastomosis; 
           [0024]      FIG. 7  is an entire schematic view of a surgical training device according to a second usage mode of the invention; 
           [0025]      FIG. 8  is a schematic view showing an outline of a first holder in the surgical training device as shown in  FIG. 7 ; 
           [0026]      FIG. 9  is a schematic view showing an example of end-end anastomosis in vascular anastomosis; 
           [0027]      FIG. 10  is an entire schematic view of a surgical training device according to a third usage mode of the invention; 
           [0028]      FIG. 11  is an exploded perspective view showing outlines of a support mount and a fix hold portion in the surgical training device as shown in  FIG. 10 ; 
           [0029]      FIG. 12  is a schematic view showing an example in which a hold member is not used in the third usage mode of the invention; 
           [0030]      FIG. 13  is a schematic view showing another example of a pressing plate; and 
           [0031]      FIG. 14  contains schematic views illustrating the method for using the pressing plate of  FIG. 13 . 
       
    
    
     DESCRIPTION OF EMBODIMENTS 
       [0032]    Embodiments of the invention will specifically be described below with reference to drawings. 
         [0033]    [First Usage Mode] 
         [0034]    This usage mode describes the case of using a surgical training device of the invention in training for performing end-side anastomosis on pseudo blood vessels (anastomosing the end portion of one blood vessel to the side portion of another blood vessel; see  FIG. 6 ). 
         [0035]      FIG. 1  is an entire schematic view of a surgical training device according to the first usage mode of the invention.  FIG. 2  is an exploded perspective view showing outlines of a support mount and a first holder in the surgical training device as shown in  FIG. 1 , and  FIG. 3  is a schematic view showing an outline of a second holder. 
         [0036]    As shown in  FIG. 1 , the surgical training device  10  of this usage mode is comprised of a support mount  100 , a first holder (fix holder)  110  on the top of the support mount  100  to hold a first pseudo blood vessel (or artificial blood vessel) BV 1  in a fixed manner, and a second holder (movable holder)  120  that is coupled to the support mount  100  and that holds a second pseudo blood vessel (or artificial blood vessel) BV 2  to be movable. 
         [0037]    The support mount  100  has a support portion  101  that supports the entire training device  10  to cause the device to stand, a coupling portion  102  to couple the movable holder  120 , and a fix holder installation portion  103  to attach the fix holder  110 . 
         [0038]    The support portion  101  has a structure capable of stably supporting the training device  10  without the device falling even when the movable holder  120  is moved to various positions and attitudes. More suitably, the bottom is provided with a nonslip material (not shown) comprised of silicone or the like. 
         [0039]    The coupling portion  102  is a flange-shaped protrusion area to couple with a fix portion  121  of the movable holder  120 , described later. 
         [0040]    The fix holder installation portion  103  is comprised of a concave portion  104  provided on the upper face of the support mount  100  to fit the holder member  111  of the fix holder  110  thereinto, described below, and a screw portion  105  provided in the periphery of the concave portion  104 . 
         [0041]    The fix holder  110  is comprised of a hold member  111  to place the first pseudo blood vessel BV 1 , a fix portion  113  to fix the hold member  111  to the fix holder installation portion  103  of the support mount  100 , and a pressing plate  112  that is positioned in between the hold member  111  and fix portion  113  to prevent the hold member  111  and the first pseudo blood vessel BV 1  from being misaligned and the like. 
         [0042]    The hold member  111  is preferably comprised of a member having elasticity, and on its surface is formed a groove  114  to place the first pseudo blood vessel BV 1 . In addition, in  FIGS. 1 and 2 , the hold member  111  provided with only a single groove  114  is shown in the figures, but as shown in  FIG. 5 , the hold member may be a hold member  111 A provided with a plurality of grooves (herein, two grooves as an example)  114   a ,  114   b.  In such a case, to support pseudo blood vessels (or artificial blood vessels) of various sizes, the grooves  114 ,  114   b  are configured to differ from each other in the groove width and the groove depth. 
         [0043]    The pressing plate  112  is a plate-shaped member that presses the circumferential portion of the hold member  111  and the end portion of the first pseudo blood vessel BV 1 , and has an opening  115 . 
         [0044]    The fix portion  113  has an opening  116  on the top, and in its inner circumference surface is formed a screw portion  117  that is screwed with the screw portion  105  of the support mount  100 . Accordingly, while exposing the first pseudo blood vessel BV 1  from the opening  116 , the circumferential portion of the hold member  111  and the end portion of the first pseudo blood vessel BV 1  are pressed together with the pressing plate  112 , and are capable of being fixed to the support mount  100 . 
         [0045]    The movable holder  120  is comprised of a fix portion  121  to couple and fix the movable holder  120  to the coupling portion  102  of the support mount  100 , a flexible arm portion  122  formed of a material or structure that is transformed flexibly, a hold shaft portion  123  that holds the second pseudo blood vessel BV 2 , and a connection portion  124  that connects between the flexible arm portion  122  and the hold shaft portion  123 . 
         [0046]    The fix portion  121  is suitably comprised of a clip as shown in  FIGS. 1 and 3 . It is preferable to provide the inside (the side coming into contact with the coupling portion  102  of the support mount  100 ) of the clip with a nonslip material such as silicone, not shown. The coupling portion  102  of the support mount  100  protruding in the shape of a fringe is pinched with such a clip, and the movable holder  120  is fixed to the support mount  100 . 
         [0047]    The flexible arm portion  122  is formed of a material or structure which can be transformed flexibly to place the second pseudo blood vessel BV 2  in an arbitrary position and an arbitrary angle, while being capable of maintaining the transform state. Herein, as an example, used is the structure that ball joints are coupled as shown in  FIG. 3 .  FIG. 4  shows the details. As shown in the figure, herein, the flexible arm portion  122  is comprised of the ball joint structure that strongly fits a dumbbell-shaped connector member  126  comprised of balls  126 A and a shaft  126 B, and a cylindrical member  127  not to drop. Each of the balls  126 A of the connector member  126  rotates inside the cylindrical member  127  freely, and it is thereby possible to bend and extend freely. Fine adjustments to the position and angle are also ease. 
         [0048]    The hold shaft portion  123  is comprised of a shaft member which is inserted into a hole of the second pseudo blood vessel BV 2  and thereby holds the second pseudo blood vessel BV 2 . Further, it is suitable to provide a clip  125  that fixes the second pseudo blood vessel BV 2  in a predetermined insertion position of the hold shaft portion  123 . 
         [0049]    The connection portion  124  connects between the flexible arm portion  122  and the hold shaft portion  123 . Since the thickness of the blood vessel significantly varies with sites (for example, aorta with a diameter of about 30 mm, coronary artery with a diameter of about 3 mm, etc.) , also pseudo blood vessels with different diameters are used in training. Accordingly, it is necessary to exchange the hold shaft portion  123  in accordance with the thickness of the pseudo blood vessel to use. Therefore, it is preferable that the connection portion  124  has a structure for enabling the hold shaft portion  123  to be exchanged with ease. 
         [0050]    Described below is the case of performing vascular anastomosis training using the surgical training device  10  with the above-mentioned configuration. 
         [0051]    First, the first pseudo blood vessel BV 1  is fitted into the groove  114  provided in the hold member  111  of the fix holder  110 , the hold member  111  is inserted in the concave portion  104 , the pressing plate  112  is placed, and further, the fix portion  113  is attached to the fix holder installation portion  103 . In addition, although not shown, it is suitable that a wire becoming a shaft to prevent misalignment is inserted into the first pseudo blood vessel BV 1  disposed in the groove  114 . 
         [0052]    Meanwhile, the second pseudo blood vessel BV 2  to be anatomized to the first pseudo blood vessel BV 1  is inserted into the hold shaft portion  123  of the movable holder  120 . At this point, the second pseudo blood vessel BV 2  is pinched with the clip  125  together with the hold shaft portion  123  and fixed while protruding through the front end of the hold shaft portion  123  in a predetermined length. Then, the second pseudo blood vessel BV 2  is placed in a position most suitable for anastomosis with the flexible arm portion  122  transformed flexibly of the second holder  120 . 
         [0053]    By this means, as shown in  FIG. 6 , the first pseudo blood vessel BV 1  and the second pseudo blood vessel BV 2  are anastomosed with a suture  41  and a surgical needle  42 . 
         [0054]    Thus, according to the aforementioned first usage mode, the support mount  100  and the fix holder  110  are integrated, the movable holder  120  that is transformed flexibly is further provided, and it is thereby possible to configure the surgical training device that is compact and easy to use, and to perform training in end-side anastomosis with ease. 
         [0055]    [Second Usage Mode] 
         [0056]    This usage mode describes the case of using a surgical training device of the invention in training for performing end-end anastomosis on pseudo blood vessels (anastomosing the end portion of one blood vessel to the end portion of another blood vessel; see  FIG. 9 ). 
         [0057]      FIG. 7  is an entire schematic view of a surgical training device according to the second usage mode of the invention.  FIG. 8  is a schematic view showing an outline of a first holder in the surgical training device as shown in  FIG. 7 . 
         [0058]    In addition, the surgical training device  20  of this usage mode has the same configuration as in the first usage mode except a first holder  210 . Therefore, the same portions as in the first usage mode shown in  FIG. 1  are assigned the same reference numerals to omit specific descriptions thereof. 
         [0059]    As shown in  FIG. 7 , the surgical training device  20  of this usage mode is comprised of the support mount  100 , a first holder (first movable holder)  210  that is coupled to the support mount  100  and that holds the first pseudo blood vessel (or artificial blood vessel) BV 1  to be movable, and the second holder (second movable holder)  120  that is similarly coupled to the support mount  100  and that holds the second pseudo blood vessel (or artificial blood vessel) BV 2  to be movable. 
         [0060]    Thus, by adding only the movable holder  210  to the surgical training device  10  as shown in the first usage mode, it is possible to configure the surgical training device  20  of this usage mode. The first movable holder  210  has the same structure as the second movable holder  120  ( FIG. 3 ). In other words, as shown in  FIG. 8 , the first movable holder  210  is comprised of a fix portion  211  to couple and fix the first movable holder  210  to the coupling portion  102  of the support mount  100 , a flexible arm portion  212  formed of a material or structure that is transformed flexibly, a hold shaft portion  213  that holds the first pseudo blood vessel BV 1 , and a connection portion  214  that connects between the flexible arm portion  212  and the hold shaft portion  213 . The configuration of each of aforementioned portions is the same as the second movable holder  120  as shown in  FIG. 3 . 
         [0061]    Described below is the case of performing vascular anastomosis training using the surgical training device  20  with the above-mentioned configuration. 
         [0062]    First, the first pseudo blood vessel BV 1  is inserted into the hold shaft portion  213  of the first movable holder. Further, the second pseudo blood vessel BV 2  to be anatomized to the first pseudo blood vessel BV 1  is inserted into the hold shaft portion  123  of the movable holder  120 . At this point, the first pseudo blood vessel BV 1  and the second pseudo blood vessel BV 2  are pinched with the clips  215 ,  125  together with the hold shaft portions  213 ,  123  and fixed while protruding through the front ends of the hold shaft portions  213 ,  123  in predetermined lengths, respectively. Then, each of the pseudo blood vessels BV 1 , BV 2  is placed in a position most suitable for anastomosis with the flexible arm portion  212  or  122  transformed flexibly of the first holder  210  or second holder  120 , respectively. 
         [0063]    By this means, as shown in  FIG. 9 , the first pseudo blood vessel BV 1  and the second pseudo blood vessel BV 2  are anastomosed with a suture  51  and a surgical needle  52 . 
         [0064]    Thus, according to the aforementioned second usage mode, the support mount  100  is provided two movable holders  210 ,  120  transformed flexibly, and it is thereby possible to configure the surgical training device that is compact and easy to use, and to perform training in end-end anastomosis with ease. 
         [0065]    [Third Usage Mode] 
         [0066]    As in the second usage mode, this usage mode describes the case of using a surgical training device of the invention in training for performing end-end anastomosis on pseudo blood vessels. In addition, herein, shown is an example of holding the pseudo blood vessels with fix holders, instead of holding the pseudo blood vessels with movable holders as in the second usage mode. 
         [0067]      FIG. 10  is an entire schematic view of a surgical training device according to the third usage mode of the invention.  FIG. 11  is an exploded perspective view showing outlines of a support mount and a fix hold portion in the surgical training device as shown in  FIG. 10 . 
         [0068]    In addition, the surgical training device  30  of this usage mode has the same configuration as in the first usage mode except a fix hold portion (first holder and second holder). Therefore, the same portions as in the first usage mode shown in  FIG. 1  are assigned the same reference numerals to omit specific descriptions thereof. 
         [0069]    As shown in  FIG. 10 , the surgical training device  30  of this usage mode is comprised of the support mount  100 , and a fix hold portion  300 , provided on the upper face of the support mount  100 , provided with a first hold shaft portion (fix holder; first holder)  310  that holds the first pseudo blood vessel (or artificial blood vessel) BV 1  in a fixed manner, and a second hold shaft portion (fix holder; second holder)  320  that holds the secondpseudo bloodvessel (or artificial bloodvessel) BV 2  in a fixed manner. Herein, each of the first hold shaft portion  310  that holds the first pseudo blood vessel BV 1  in a fixed manner and the second hold shaft portion  320  that holds the second pseudo blood vessel BV 2  in a fixed manner may be provided with a fix material (dotted-line portions of reference numerals  310  and  320  in  FIG. 10 ), for example, in the shape of a U or an L to be inserted into the inner surface of each pseudo blood vessel to hold so that the first pseudo blood vessel BV 1  and the second blood vessel BV 2  do not shift on the surface of the hold member  301  easily, respectively. 
         [0070]    As shown in  FIG. 11 , the fix hold portion  300  is comprised of the hold member  301  that holds the first and second pseudo blood vessels BV 1 , BV 2 , the first hold shaft portion  310  that is inserted into the first pseudo blood vessel BV 1 , the second hold shaft portion  320  that is inserted into the second pseudo blood portion BV 2 , a fix portion  303  to fix the hold member  301  to the fix holder installation portion  103  of the support mount  100 , and a pressing plate  302  that is positioned in between the hold member  301  and fix portion  303  to prevent the hold member  301  and the pseudo blood vessels BV 1 , BV 2  from being misaligned, and the like. 
         [0071]    The hold member  301  is preferably comprised of a member having elasticity, and on its surface is formed a groove  304  to place the first and second pseudo blood vessels BV 1 , BV 2 . In addition, to support pseudo blood vessels (or artificial blood vessels) of various sizes, as the groove provided in the hold member  301 , a plurality of grooves with different groove widths and groove depths may be provided. Then, an opening  301 A is provided substantially in the center portion of the hold member  301  not to interfere in anastomosis training. In addition, as shown in  FIG. 12 , clips  335  may be substituted for the hold member to hold the pseudo blood vessels BV 1 , BV 2 . 
         [0072]    The first hold shaft portion (fix holder; first holder)  310  and second hold shaft portion (fix holder; second holder)  320  are formed of shaft members which are inserted in the holes of the pseudo blood vessels BV 1 , BV 2  and thereby hold the pseudo blood vessels BV 1 , BV 2 , respectively. For the hold shaft portions  310 ,  320 , it is suitable to select and use a shaft portion with the most suitable thickness for the thickness of a pseudo blood vessel to use as appropriate. As shown in  FIG. 11 , it is suitable that each of the hold shaft portions  310 ,  320  has substantially the shape of an L. By this means, the position is capable of being fixed easily by inserting each portion in between the hold member  301  and the inside of the fix holder installation portion  103 . In addition, the hold shaft portions  310 ,  320  may be of configurations for enabling the portions to be fixed to the pressing plate  302  or the fix holder installation portion  103 . 
         [0073]    The pressing plate  302  is a plate-shaped member that presses the circumferential portion of the hold member  301 , and the end portions of the pseudo bloodvessels BV 1 , BV 2 , and has an opening  305 . In addition, the pressing plate  302  may be the shape having protrusion portions  308  as shown in  FIG. 13 . Herein,  FIG. 13  ( a ) is a top view of the pressing plate  302 A,  FIG. 13(   b ) is a sectional view taken along the line a-a of  FIG. 13  ( a ),  FIG. 13  ( c ) is a sectional view taken along the line b-b of  FIG. 13  ( a ), and  FIG. 13(   d ) is a sectional view taken along the line c-c of  FIG. 13  ( a ). Herein, an example of providing two groups ( 308   a ,  308   b ) of protrusion portions  308  with different lengths is shown in the figure, and further, a plurality of groups or only one group may be provided. The protrusion portions  308  are provided to be line symmetry with respect to the diameter.  FIG. 14  contains views to explain usage examples of the pressing plate  302 A.  FIG. 14(   a ) shows a case of pressing the pseudo blood vessels BV 1 , BV 2  with the large protrusion portions  308   a,    FIG. 14(   b ) shows a case of pressing the pseudo blood vessels BV 1 , BV 2  with the small protrusion portions  308   b,  and  FIG. 14  ( c ) shows a case of pressing the pseudo blood vessels BV 1 , BV 2  with inter-protrusion portions  309 . Thus, in the case of providing two sets ( 308   a,    308   b ) of protrusion portions  308  with different lengths, it is possible to press the pseudo blood vessels BV 1 , BV 2  in three different positions. As shown in the figures, by forming the protrusion portions  308 , even in the case where the lengths of the pseudo blood vessels BV 1 , BV 2  are short, it is possible to reliably press the end portions. 
         [0074]    The fix portion  303  has an opening  306  on the top, while in the inner circumference surface is formed a screw portion  307  to be screwed with the screw portion  105  of the support mount  100 . Accordingly, by pressing the circumferential portion of the hold member  301  and the end portions of the pseudo blood vessels BV 1 , BV 2  together with the pressing plate  302 , while exposing the pseudo blood vessels BV 1 , BV 2  from the opening  306 , it is possible to fix to the support mount  100 . 
         [0075]    Thus, it is possible to configure the surgical training device  30  of this usage mode, only by adding the slight modification to the configuration of the fix holder  110  of the surgical training device  10  shown in the first usage mode. 
         [0076]    Described below is the case of performing vascular anastomosis training using the surgical training device  30  with the above-mentioned configuration. 
         [0077]    First, the first pseudo blood vessel BV 1  and the second pseudo blood vessel BV 2  are respectively inserted into the first hold shaft portion  310  and the second hold shaft portion  320 , thereby set in the hold member  301 , and after fitting the hold member  301  into the concave portion  104  of the support mount  100  together with the hold shaft portions  310 ,  320 , are fixed with the pressing plate  302  and fix portion  303 . At this point, the first pseudo blood vessel BV 1  and the second pseudo blood vessel BV 2  are fixed while protruding through the front ends of the hold shaft portions  310 ,  320  in predetermined lengths, respectively. 
         [0078]    By this means, as shown in  FIG. 9 , the first pseudo blood vessel BV 1  and the second pseudo blood vessel BV 2  are anastomosed with the suture  51  and the surgical needle  52 . 
         [0079]    Thus, according to the aforementioned third usage mode, the support mount  100  and the fix holders  310 ,  320  are integrated, and it is thereby possible to configure the surgical training device that is compact and easy to use, and to perform training in end-end anastomosis with ease. 
         [0080]    In the above-mentioned description, the usage modes of the invention are described, but the invention is not limited to the above-mentioned usage modes, and various modifications thereof can be made based on the subject matter of the invention, and the modifications are not excluded from the scope of the invention. 
       INDUSTRIAL APPLICABILITY 
       [0081]    The present invention relates to the surgical training device used in training in surgeries, particularly, vascular anastomosis, and has industrial applicability. 
       DESCRIPTION OF SYMBOLS 
       [0000]    
       
           10 ,  20 ,  30  Surgical training device 
           100  Support mount 
           101  Support portion 
           102  Coupling portion 
           103  Fix holder installation portion 
           104  Concave portion 
           105  Screw portion 
           110  First holder (fix holder) 
           111 ,  111 A Hold member 
           112  Pressing plate 
           113  Fix portion 
           114 ,  114   a,    114   b  Groove 
           115 ,  116  Opening 
           117  Screw portion 
           120  Second holder (movable holder) 
           121  Fix portion 
           122  Flexible arm portion 
           123  Hold shaft portion 
           124  Connection portion 
           125  Clip 
           126  Connector member 
           126 A Ball 
           126 B Shaft 
           127  Cylindrical member 
           210  First holder (first movable holder) 
           211  Fix portion 
           212  Flexible arm portion 
           213  Hold shaft portion 
           214  Connection portion 
           215  Clip 
         BV 1  First pseudo blood vessel (or artificial blood vessel) 
         BV 2  Second pseudo blood vessel (or artificial blood vessel) 
           300  Fix hold portion 
           301  Hold member 
           301 A Opening 
           302  Pressing plate 
           303  Fix portion 
           304  Groove 
           305 ,  306  Opening 
           307  Screw portion 
           308 ,  308   a,    308   b  Protrusion portion 
           309  Inter-protrusion portion 
           310  First hold shaft portion (fix holder; first holder) 
           320  Second hold shaft portion (fix holder; second holder) 
           335  Clip