WO2015119120A1 - Trunk immobilization system - Google Patents

Abstract

A trunk immobilization system (1) is provided with: a rectangular base plate (3) overlaid onto a top plate (2) such as a treatment table; body posture immobilization tools (5, 6, 7) for immobilizing, in a predetermined body posture, a person who has been placed on the base plate (3); and an index bar (8) that is used in order to position each of the body posture immobilization tools (5, 6, 7) to a predetermined site in the length direction (Y) of the base plate (3) and attach the body posture immobilization tools (5, 6, 7) to the base plate (3). The base plate (3) can be separated in the length direction (Y) into an upper body base plate (9) and a lower body base plate (10). The invention makes it possible to implement a trunk immobilization system that is convenient for immobilizing a patient in a variety of forms of immobilization, on a treatment table or the like.

Description

Trunk fixation system

The present invention relates to a torso fixing system used for fixing a torso of a patient or a subject or suppressing body movement in radiotherapy, imaging of an affected part using a CT scanner, treatment, or the like.

In radiotherapy and the like, in order to restrain the patient's body movement during radiation irradiation, the patient is fixed to a treatment table (a general term for treatment machines such as radiation) using a body fixing device. Similarly, in the diagnosis by MRI or the like, the body fixing device is used to fix the subject to a bed (general name of a diagnostic machine such as CT or MRI) so that the subject does not move. The body fixing device is indispensable for improving the patient's fixed position accuracy (irradiation position accuracy) and improving the fixed position reproducibility (irradiation position reproducibility). Patent Document 1 discloses a positioning device used for such a purpose.

As a body fixing device for restraining body movement of a patient, a device having a structure in which side plates as fixing tools are attached to the left and right sides of the surface of a rectangular base plate made of carbon is known. Between the left and right side plates of the base plate, a lower fixing tool for fixing the patient from the lower side, for example, a suction-type fixing bag (trade name, manufactured by Engineering System Co., Ltd.) is laid, and the patient is, for example, supine Put it in posture.

The suction-type fixed bag has fine styrene beads housed in a bag made of an airtight flexible plastic film, and a suction port for venting air is attached to the bag. When air is sucked from the suction port of the suction-type fixing bag after placing the patient, the suction-type fixing bag is molded into a shape that conforms to the patient's body shape, and the molding state is maintained by sealing the suction port. .

Next, a fixed shell made of a thermoplastic resin film (trade name, manufactured by Engineering System Co., Ltd.) is heated on the patient, put in a flexible state, and tightened. In this state, both ends of the fixed shell are placed on the left and right sides. Secure to the plate. The fixed shell hardens in a state of being molded into a shape along the patient's body shape. As a result, the patient's body is fixed by the lower suction-type fixing bag and the upper fixing shell that have been molded. The base plate placed in a state where the patient is restrained in this way is placed on a movable treatment table top plate for radiation therapy, and in this state, the patient is subjected to radiation therapy or the like.

In radiotherapy, etc., in order to fix the posture of the patient or subject in a raised position, the base plate has a pair of support bases on which the left and right arms are placed and a pair of grips with the left and right hands as a posture fixing tool. A posture fixer with a gripping bar or the like is used. Such a posture fixing tool is proposed in Patent Document 2. In addition, as a fixing tool for fixing the trunk (lower limbs and pelvis), body position fixing tools such as a knee rest and a heel rest are attached to the base plate.

Japanese Patent Laid-Open No. 05-253311 JP 2013-85659 A

In the body part fixing device, different body posture fixing tools are attached to the base plate depending on the treatment site, diagnosis site, and the like. Further, each body posture fixing tool is attached to the base plate by adjusting the attachment position in the length direction (head-to-tail direction) of the base plate according to the physique and body shape of the patient or subject.

An object of the present invention is to provide a trunk fixing system that is convenient for fixing a patient and a subject in various fixing forms to a treatment table or a bed.

Also, an object of the present invention is to provide a trunk fixing system capable of adjusting the position of various fixing tools by a simple operation according to the physique and body shape of a patient and a subject.

In order to solve the above problems, the trunk fixing system of the present invention is:
A rectangular base plate on the top of the treatment table or bed,
A posture fixing tool for fixing a person placed on the base plate to a predetermined posture;
An index bar used for positioning each of the body posture fixtures at a predetermined position in the length direction of the base plate and attaching to the base plate;
Have
The base plate is composed of at least two first base plates and second base plates that are separable in the length direction thereof.
At least one of the body position fixing tools can be attached to at least one of the first and second base plates by the index bar.

In the trunk fixing system of the present invention, the base plate can be separated into at least two in the length direction. For example, when it is necessary to fix only the part on the head side or only the part on the lower limb side of a patient or the like, a body fixing device having a configuration in which a necessary posture fixing tool is attached to one base plate is treated. Since it can be used on a stand or the like, and a portion that is not used can be separated, handling becomes simple and convenient.

In a typical example of the trunk fixing system of the present invention, the base plate is composed of an upper body base plate and a lower body base plate. Further, as the body posture fixing tool, a shell fixing tool such as a shell for fixing a trunk (upper fixing tool), a left side plate part to which a bag (lower fixing tool) can be attached, and a side plate having a right side plate part. A knee support for fixing the lower limbs and pelvis, and a heel support for fixing the lower limbs.

In this case, the upper body fixing device is configured by attaching the shell fixing tool to the upper body base plate. A lower body fixing device is configured by attaching at least one of the knee rest and the heel rest to the lower body base plate. The upper body base plate and the lower body base plate are connected to form the base plate, and the shell fixing tool, the knee rest and the heel rest are attached to the base plate to constitute a whole body fixing device. The

Here, in order to allow the base plate to be separated and connected by a simple operation, the connecting part of the upper body base plate and the lower body base plate has a complementary plate-like contoured first plate connecting end surface And a second plate connecting end surface, a joint pin protruding from the first plate connecting end surface in a direction parallel to the base plate and different from the length direction of the base plate, and formed on the second plate connecting end surface And a pin guide groove in which the joint pin can be mounted from the thickness direction of the base plate in a state where the first and second plate connecting end faces are matched when viewed from the thickness direction of the base plate. It can be configured. In the upper body base plate and the lower body base plate, the first plate connection end surface is formed on one side, and the second plate connection end surface is formed on the other side.

In addition, the length of the base plate is set at both ends in the width direction of the base plate so that the body posture fixing tool can be attached to an appropriate position in the length direction of the base plate according to the physique and body shape of the patient, subject, etc. It is desirable that a plurality of a pair of index bar mounting holes formed at the same position in the vertical direction is formed at predetermined intervals along the length direction of the base plate. In addition, in order to be able to confirm the mounting position, the mounting position of the index bar mounted in the index bar mounting hole is set to the outer position in the width direction of the base plate with respect to each of the index bar mounting holes. It is desirable that a position mark for confirmation is formed. Further, in order to position and attach each base plate to a top plate such as a treatment table in a separated state, an index for positioning the top plate on each of the upper body base plate and the lower body base plate of the base plate It is desirable that a bar mounting groove is formed.

In this case, each of the index bars includes a bar body, a pair of bar positioning pins attached to the back surface of the bar body, a pair of fixture positioning pins attached to the surface of the bar body, and a pair of view holes. The pair of bar positioning pins can be inserted into each of the index bar mounting holes of each pair of the base plate, and the pair of fixing member positioning pins are for positioning the body posture fixing tool. The view hole may be a through hole extending through the bar body in the thickness direction so as to visually recognize the position mark on both sides of each pair of positioning pins in the bar body.

Further, the side plate can be configured such that the left side plate portion and the right side plate portion are respectively attached to a rectangular frame and left and right frame portions of the rectangular frame. In this case, at least a pair of bolt holes and at least a pair of view holes are formed at the same position in the length direction of the left and right frame parts, and the distance between the pair of bolt holes is the distance between the index bar mounting holes. The rectangular frame can be directly attached to the upper body base plate without using the index bar by passing a fixing bolt through each bolt hole and the index bar attaching hole. The view hole is a through hole extending through the bar main body in the thickness direction in order to visually recognize the position mark.

Next, the knee mount includes a positioning unit that can be attached to the index bar attached to the base plate, a knee base that can be connected to the upper surface of the positioning unit, and a knee that can be connected to the upper surface of the knee base. The positioning unit includes a first unit base that can be attached to the index bar, a second unit base that is slidably attached to the first unit base in a length direction, and The second unit base may include a fixing mechanism that can be positioned and fixed at a predetermined position in the length direction with respect to the first unit base. By setting the positioning pitch by the fixing mechanism to be finer than the positioning pitch by the index bar, the knee rest can be positioned at a fine pitch in the length direction of the base plate.

Further, the eaves base includes a eaves base plate that can be attached to the index bar attached to the base plate, a first fixed base fixed to the upper surface of the eaves base plate, and the first fixed base. A second fixed base slidably attached in the length direction; a first fixing mechanism capable of positioning and fixing the second fixed base at a predetermined position in the length direction with respect to the first fixed base; A pair of left and right saddle rest main body portions slidably mounted in the width direction with respect to the fixed base, and a pair of second fixing mechanisms capable of positioning and fixing each of the saddle rest main body portions at predetermined positions in the width direction; It can be set as the structure provided with.

In this case as well, by setting the positioning pitch by the first fixing mechanism to be finer than the positioning pitch by the index bar, it is possible to position the eaves table with a fine pitch in the length direction of the base plate. In addition, the left and right saddle rest main body portions can be positioned at appropriate positions in the width direction by the second fixing mechanism.

It is a perspective view (drawing substitute photograph) which shows the state which mounted the trunk | body trunk fixing system which concerns on Embodiment 1 to which this invention was applied on the treatment table top plate. It is a perspective view (drawing substitute photograph), a top view, and a side view showing a trunk fixing system. It is a perspective view (drawing substitute photograph) which shows a lower body fixing device. It is a perspective view (drawing substitute photograph) which shows the base plate for the upper half of the trunk fixing system and the base plate for the lower half of the body. It is explanatory drawing (drawing substitute photograph) which shows the attachment part of a base plate and a top plate, and the connection part of the base plate for upper body and the base plate for lower body. It is the perspective view (drawing substitute photograph) which shows an index bar, and explanatory drawing (drawing substitute photograph) which shows the attachment procedure. It is a perspective view (drawing substitute photograph) which shows a side plate. It is explanatory drawing (drawing substitute photograph) which shows the attachment procedure of a side plate. It is explanatory drawing (drawing substitute photograph) which shows a shell fixing procedure. It is a perspective view (drawing substitute photograph) which shows a knee rest. It is a perspective view (drawing substitute photograph) which shows the positioning unit of a knee rest. It is explanatory drawing (drawing substitute photograph) which shows the knee rest base of a knee rest base. It is a perspective view (drawing substitute photograph) which shows a ridge stand. It is explanatory drawing (drawing substitute photograph) which shows the position adjustment procedure of a wall rest. It is a perspective view (drawing substitute photograph) which shows an example of the trunk | body fixing system which concerns on Embodiment 2 to which this invention is applied. It is a perspective view which shows the trunk | body part fixing system which concerns on Embodiment 3 to which this invention is applied. It is a perspective view which shows the shell fixing tool of the state which attached the shell. It is a perspective view which shows a shell fixing tool. It is a perspective view which shows the trunk | body part fixing system which concerns on Embodiment 4 to which this invention is applied. It is a perspective view which shows the trunk | body part fixing system which concerns on Embodiment 5 to which this invention is applied. It is the perspective view which shows a shell fixing tool, the perspective view which shows the shell fixing tool in the state which attached the shell, and the fragmentary sectional view of a shell mounting part. It is a perspective view which shows the trunk | body part fixing system which concerns on Embodiment 6 to which this invention is applied.

Hereinafter, an embodiment of a trunk fixing system to which the present invention is applied will be described with reference to the drawings.

[Embodiment 1]
(overall structure)
FIG. 1 is a perspective view (drawing substitute photograph) showing a state where the trunk fixing system according to the present embodiment is placed on the top plate of a treatment table (or bed). 2 (a) is a perspective view (drawing substitute photograph) showing the trunk fixing system, FIG. 2 (b) is a plan view thereof, and FIG. 2 (c) is a side view thereof. FIG. 3 is a perspective view (drawing substitute photograph) showing the lower body fixing device.

As shown in FIGS. 1 and 2, the trunk fixing system 1 includes a rectangular base plate 3 laid on a top plate 2 of a treatment table (or bed). The base plate 3 is positioned and fixed on the upper surface of the top plate 2 by the index bar 4. The base plate 3 is attached with three kinds of body position fixing tools, a side plate 5 used for fixing a person (not shown) placed on the base plate 3 to a predetermined body position, a knee rest base 6 and a heel rest base 7. . The side plate 5, the knee rest 6 and the heel rest 7 are respectively attached to the base plate 3 via one or a plurality of index bars 8. The side plate 5 can be directly attached to the base plate 3 without using the index bar 8.

The base plate 3 is composed of two first base plates and second base plates that are separable in the length direction (head-to-tail direction) Y. In this example, the first base plate is the upper body base plate 9, and the second base plate is the lower body base plate 10. These base plates 9 and 10 are attached to the top plate 2 by index bars 4 respectively. The side plate 5 is a body posture fixing device including a left side plate portion 11L and a right side plate portion 11R to which a shell or bag for body trunk fixing and body movement suppression can be attached. The knee rest 6 is a posture fixing tool for fixing a person's lower limb and pelvis, and the heel rest 7 is a posture fixing tool for fixing the lower limb.

The upper body fixing device 1A is configured by attaching the side plate 5 to the upper body base plate 9. As shown in FIG. 3, a lower body fixing device 1 </ b> B is configured by attaching the knee rest 6 and the heel rest 7 to the lower body base plate 10. Further, by connecting the upper body base plate 9 and the lower body base plate 10 to form the base plate 3, and attaching the side plate 5, the knee rest base 6 and the heel rest base 7 to the base plate 3, as shown in FIG. A trunk fixing system 1 as a whole body fixing device is configured.

(Base plate)
4A is a perspective view (drawing substitute photograph) showing the upper body base plate 9, and FIG. 4B is a perspective view (drawing substitute photograph) showing the lower body base plate 10. FIG. Since the basic configurations of these base plates 9 and 10 are the same, the corresponding portions will be described with the same reference numerals. At both ends in the width direction X of the base plates 9 and 10, a pair of index bar mounting holes 21 </ b> L and 21 </ b> R formed at the same position in the length direction Y are fixed along the length direction Y of the base plates 9 and 10. A plurality are formed at intervals.

For each pair of index bar mounting holes 21L and 21R, a position mark for confirming the mounting position of the index bar 8 mounted in the index bar mounting holes 21L and 21R is located outside the width direction X. 22L and 22R are formed. Service holes 24L and 24R, which are through holes to which additional functional parts can be attached, are located at intervals half the index bar attachment holes 21L and 21R at positions outside the width direction X with respect to the position marks 22L and 22R on both sides. Is formed.

In this example, the upper body base plate 9 is formed with two pairs of index bar mounting grooves 23L and 23R for positioning with respect to the top plate 2. A pair of index bar mounting grooves 23L and 23R for positioning with respect to the top plate 2 are formed in the lower body base plate 10.

FIG. 5 (a) is a partial perspective view (drawing substitute photograph) showing an arrangement portion of the index bar 4 for attaching the upper body base plate 9 to the treatment table or the couch top 2 of the bed. The index bar 4 is attached to the top surface of the top plate 2 so as to be sandwiched from the width direction side. A pair of positioning pins 25 are attached to the upper surface of the index bar 4. By inserting the positioning pins 25 into the pair of index bar mounting grooves 23L, 23R formed in the upper body base plate 9 from below, the upper body base plate 9 is attached to the top plate 2 in a positioned state. A recess 26 is formed on the back surface of the upper body base plate 9 so as to fit the index bar 4 in the width direction of the base plate, and the upper body base plate 9 is in close contact with the upper surface of the top plate 2. In this state, it can be placed on the top plate. Since the other lower body base plate 10 side has the same structure, the description thereof is omitted.

Next, FIG. 5B is a partial perspective view (drawing substitute photograph) showing the connecting portion of the base plates 9 and 10, and FIG. 5C is a partially enlarged perspective view showing a part thereof enlarged (drawing substitute). Photo). With reference to these drawings, the structure of the connecting portion of both base plates 9 and 10 will be described.

The connecting portion between the upper body base plate 9 and the lower body base plate 10 includes a first plate connecting end surface 28 and a second plate connecting end surface 29 having complementary concave and convex contour shapes. The first plate connecting end surface 28 is one end surface in the length direction Y of the upper body base plate 9, and is a convex end surface protruding by a certain amount with a width narrower than the width of the base plate 9. From the left and right side end surfaces of the first plate connecting end surface 28, the pair of left and right joint pins 30 is a direction parallel to the base plate 3 and different from the length direction Y of the base plate 3, in this example, the width direction. Projects on both sides of X.

The second plate connecting end surface 29 is one end surface in the length direction Y of the lower body base plate 10, and is a concave end surface complementary to the first plate connecting end surface 28. A pair of left and right pin guide grooves 31 are formed on the inner side end surfaces on both sides of the second plate connecting end surface 29. The pin guide groove 31 is a groove having a constant width extending outward in the width direction from the side end surface. From the thickness direction of the base plate 3, the first plate connecting end face 28 can be fitted into the second plate connecting end face 29, and at the same time, the left and right joint pins 30 can be fitted into the left and right pin guide grooves 31. It is. By these engagements, the base plates 9 and 10 are connected without being disengaged in the length direction Y. By lifting one of the base plates 9 and 10 in the thickness direction, the base plates 9 and 10 can be easily separated.

(Index bar)
FIG. 6A is a perspective view (drawing substitute photograph) showing an index bar 8 for attaching the body posture fixing tool to the base plate 3, and FIG. 6B is an explanatory view showing attachment work to the base plate 3 (drawing substitute). FIG. 6C is a partial perspective view (drawing substitute photograph) showing a view hole formed at the end of the index bar 8.

As shown in these drawings, the index bar 8 includes an elongated bar body 35, a pair of bar positioning pins 36L and 36R attached to the back surface of the bar body 35, and a pair of fixture positioning pins attached to the surface of the bar body 35. 37L, 37R, and a pair of view holes 38L, 38R. The pair of bar positioning pins 36 are attached to the pair of index bar attachment holes 21L and 21R of the base plate 3 at intervals that can be inserted. The pair of fixing tool positioning pins 37L and 37R are for positioning the knee support 6 and the heel support 7 which are body posture fixing tools. Pin holes into which the fixture positioning pins 37L and 37R can be inserted are formed on the back surfaces of the knee rest base 6 and the heel rest base 7, respectively.

The view holes 38L and 38R are circular through holes formed on both sides of each pair of positioning pins 36L and 36R in the bar main body 35. As shown in FIG. 6C, when the index bar 8 is attached to the base plate 3, the position marks corresponding to the index bar attachment holes 21L and 21R to which the index bar 8 is attached are visually recognized through these view holes 38. It is possible. Thereby, the attachment position of the index bar 8 can be confirmed.

(Side plate)
FIG. 7 is a perspective view (drawing substitute photograph) showing the side plate 5 which is a body posture fixing tool (shell fixing tool). FIGS. 8A to 8D are explanatory views (drawing substitute photos) showing a procedure for attaching the side plate 5 to the base plate 9. FIGS. 9A and 9B show a procedure for attaching the shell to the side plate 5. FIG. It is explanatory drawing shown (drawing substitute photograph).

First, as shown in FIG. 7, the side plate 5 is a body posture fixing tool for fixing a patient by attaching a fixing shell (not shown) or a suction type fixing bag (not shown). The side plate 5 includes a rectangular frame 51, a left side plate portion 52L and a right side plate portion 52R for fixing the shell and the suction type fixing bag. A rectangular left side plate portion 52L and a right side plate portion 52R are attached in a vertical state along the left and right frame portions 53L and 53R in the rectangular frame 51, respectively. A pair of pin holes 62L and 62R into which the pair of fixture positioning pins 37 of the index bar 8 can be inserted are formed in the frame bodies 57F and 57B before and after the rectangular frame 51, respectively.

A pair of bolt holes 54L and 54R are formed in the left and right frame portions 53L and 53R at the same position in the length direction. These are formed at the same interval as the index bar mounting holes 21L and 21R of the base plate 9. In the length direction, a pair of bolt holes 54L and 54R are formed at the same intervals as the index bar mounting holes 21L and 21R. Further, a pair of view holes 55L and 55R which are through holes formed at the same interval as the position marks 22L and 22R of the base plate 9 are provided at intermediate positions in the length direction of these two pairs of bolt holes 54L and 54R (see FIG. 7). Shows only one hole 55R).

On the other hand, rectangular parallelepiped positioning blocks 56L and 56R are attached to the inner side surfaces of the front and rear ends of the frame portions 53L and 53R, respectively. In addition, a pair of left and right conical positioning pins 58L and 58R are screwed and fixed to the front and rear frames 57F and 57B in the longitudinal direction of the rectangular frame 51, respectively. These positioning blocks 56L and 56R and positioning pins 58L and 58R are arranged to prevent the displacement of the suction type fixing bag.

On the outer side surfaces of the left side plate portion 52L and the right side plate portion 52R, three pairs of shell fixing pins 60L and 60R in total, three pairs on the front side and three pairs on the rear side (only the shell fixing pins 60L are shown in the figure). Are attached at the same position in the length direction. A pair of shell lock plates 61a and 61b are attached to the four locations before and after the shell fixing pins 60L and 60R, respectively.

The procedure for attaching the side plate 5 to the base plate 9 will be described with reference to FIG. First, as shown in FIG. 8A, two index bars 8 are attached to the base plate 9. The pair of front and rear pin holes 62L and 62R of the side plate 5 are positioned on the fixture positioning pins 37L and 37R of both index bars 8, and the side plate 5 is attached to the index bar 8 from above. Thus, the side plate 5 is fixed to the base plate 9 through the two index bars 8.

Thereafter, as shown in FIG. 8B, the fixing bolts 63 (fixing knobs) are respectively inserted into the index bar mounting holes 21L and 21R of the base plate 9 through the bolt holes 54L and 54R of the left and right frame portions 53L and 53R. Install. These fixing bolts 63 can securely fix the side plate 5 to the base plate 9. In this example, the side plate 5 is fixed to the base plate 9 using the index bar 8, but the side plate 5 is fixed to the base plate 9 using the four fixing bolts 63 without using the index bar 8. Is also possible. As shown in FIGS. 8C and 8D, the positioning pins 58 </ b> L and 58 </ b> R can be attached to and detached from the rectangular frame 51.

Next, FIG. 9 shows a procedure for attaching the shell to the side plate 5. As shown in FIG. 9 (a), before the shell S is attached, the pair of shell lock plates 61a and 61b are in a position where they fall horizontally. The left and right ends of the shell S are attached to the shell fixing pins 60L and 60R, and thereafter, as shown in FIG. 9B, the pair of shell lock plates 61a and 61b are swung to a position where they rise upward. Thus, the end portions on both sides of the shell S are sandwiched between the side plate portions 52L and 52R and the shell lock plates 61a and 61b, respectively, and the shell S is fixed to the side plate 5.

(Knee rest)
FIG. 10A is a perspective view (drawing substitute photograph) showing the knee rest 6 and FIG. 10B is a perspective view (drawing substitute photograph) of the knee rest 6 when viewed from different directions. The knee mount 6 includes a positioning unit 65 that can be attached to the index bar 8 attached to the lower body base plate 10, a knee base 66 that can be connected to the upper surface of the positioning unit 65, and a bulk that can be connected to the upper surface of the knee base 66. A raising base 67 and a knee rest main body 68 connectable thereto are provided. The knee rest base 66 is a member formed of a foam material or the like, and the knee rest base body portion 68 contains a foam material, a cushion material or the like, and a cushioning support surface for placing the left and right knees on this upper surface. 68a and 68b are formed.

The raising stand 67 is used as necessary. Therefore, it is also possible to connect the knee rest main body 68 directly to the upper surface of the knee rest base 66. It is also possible to place the knee rest main body 68 directly on the base plate 10 without using the positioning unit 65 and the knee rest base 66.

In the positioning unit 65, a fixing release lever 69 projects on the rear side in the front-rear direction of the base plate. Further, a portion where the view hole 70 is formed protrudes laterally in the base plate width direction.

FIG. 11 is a perspective view (drawing substitute photograph) showing the positioning unit 65. The positioning unit 65 includes a first unit base 71 that can be attached to the index bar 8, a second unit base 72 that is slidably attached to the first unit base 71 in the longitudinal direction Y, and a second unit base 72. Is fixed to a predetermined position in the length direction with respect to the first unit base 71.

The fixing mechanism 73 fixes the second unit base 72 to the first unit base 71 side by the spring force of the compression coil spring 74. When the fixing release lever 69 is operated against the spring force, fixing by the fixing mechanism 73 is released, and the second unit base 72 can be slid in the base plate length direction Y with respect to the first unit base 71. When the operating force applied to the fixing release lever 69 at the predetermined slide position is released, the second unit base 72 is fixed at that position by the spring force. By setting the fixable position by the fixing mechanism 73 finer than the pitch of the index bar mounting holes 21L, the knee rest main body 68 mounted thereon can be finely positioned in the longitudinal direction Y of the base plate.

12 (a) and 12 (b) are perspective views (drawing substitute photos) showing two examples of the knee rest base 66. FIG. The knee rest base 66A shown in FIG. 12A has a shape in which the thickness gradually decreases toward one side along the longitudinal direction of the base plate, and the knee rest base 66B shown in FIG. 12B has a constant thickness. belongs to. FIG. 12C is a perspective view (drawing substitute photograph) showing the back surface of the knee rest bases 66, 66A, 66B. As shown in this figure, cross-shaped grooves corresponding to the positioning unit 65 shown in FIG. 11 are formed on the back surfaces of these, so that the knee bases 66, 66A, 66B can be mounted on the positioning unit 65 from above. It has become.

In addition, a pair of knob holes 75L and 75R are formed as through holes in the knee rest bases 66, 66A and 66B at regular intervals in the base plate width direction. The first unit base 71 of the positioning unit 65 is formed with a pair of knob mounting holes (not shown) at corresponding positions. The knee rest bases 66, 66A, 66B can be securely fixed to the upper surface of the positioning unit 65 by using a pair of fixing knobs 77L, 77R shown in FIG.

(Samurai stand)
FIG. 13 is a perspective view (drawing substitute photograph) showing the ridge rest 7. The eaves base 7 includes an eaves base base plate 81 that can be attached to an index bar 8 attached to the base plate 10. A first fixed base 82 is fixed to the upper surface of the ridge rest base plate 81. A second fixed base 83 is attached to the first fixed base 82 so as to be slidable in the base plate length direction Y. The second fixed base 83 is positioned and fixed at a predetermined position in the base plate length direction Y with respect to the first fixed base 82 by the first fixing mechanism 84.

The second fixed base 83 is attached with a pair of left and right saddle rest main body portions 85L and 85R so as to be independently slidable in the width direction of the base plate. These saddle rest main bodies 85L and 85R are positioned and fixed at predetermined positions in the base plate width direction X with respect to the second fixed base 83 by the left and right second fixing mechanisms 86L and 86R, respectively. On the ridge rest main body portions 85L and 85R, concave surfaces 85a and 85b having cushioning properties for placing the ridge are formed. A handle 87 is stretched between the upper surface of the first fixing mechanism 84 and the second fixing base 83 in the front-rear direction of the base plate. By having the handle 87, the operation of attaching and detaching the heel rest 7 to the base plate 10 is easy.

FIG. 14 (a) is an explanatory diagram (drawing substitute photograph) showing the procedure for operating the second fixing mechanism 86L on the left side to adjust the position of the left saddle rest main body 85L in the base plate width direction X. FIG. The second fixing mechanism 86L includes a rectangular parallelepiped fixing mechanism block 88 and a pair of fixing release buttons 89 protruding outward from both end surfaces of the fixing mechanism block 88 in the base plate width direction X. When the fixing release button 89 is pushed in from both sides, the engaging claw 90 of the fixing mechanism block 88 moves to the fixing release position.

A plurality of engagement holes 91 are formed in the second fixed base 83 at regular intervals along the base plate width direction X, and the engagement claws 90 are inserted into one of the engagement holes 91 from above by a spring force. Insertion is fixed. When the fixing release button 89 is pushed in, the engaging claw 90 moves to the fixing releasing position disengaged upward from the engaging hole 91, and the left saddle rest main body 85L can be slid in the base plate width direction X. . The saddle rest main body 85L integrated with the second fixing mechanism 86L is slid in the base plate width direction X, the engagement claw 90 is positioned in a desired engagement hole 91, and the push of the fixation release button 89 is released. As a result, the engaging claw 90 is returned to the fixed state inserted into the engaging hole 91, and the saddle rest main body 85L can be positioned and fixed at a desired position in the base plate width direction X.

FIG. 14B is an explanatory view (drawing substitute photograph) showing the first fixing mechanism 84. As shown in this figure, the first fixing mechanism 84 is also configured in the same manner as the second fixing mechanisms 86L and 86R. . The first fixing mechanism 84 includes a rectangular parallelepiped fixing mechanism block 92 and a pair of fixing release buttons 93 protruding outward from both end surfaces of the fixing mechanism block 92 in the base plate length direction Y. When the fixing release button 93 is pushed in from both sides, the engaging claw 94 of the fixing mechanism block 92 biased by the spring force can be moved to the fixing release position.

A plurality of engagement holes 95 are formed in the first fixed base 82 at regular intervals along the base plate length direction Y, and the engagement claws 94 are formed on one of the engagement holes 95 by a spring force. It is inserted and fixed from. When the fixing release button 93 is pushed in, the engaging claw 94 moves to the fixing releasing position disengaged upward from the engaging hole 95, and the second fixing base 83 to which the left and right saddle rest main body portions 85L and 85R are attached is moved. It is possible to slide in the base plate length direction Y. The second fixing base 83 integrated with the first fixing mechanism 84L is slid in the base plate length direction Y, the engaging claw 94 is positioned in the desired engaging hole 95, and the pushing of the fixing release button 93 is released. As a result, the engagement claw 94 returns to the fixed state inserted into the engagement hole 95, and the hook base main body portions 85L and 85R can be positioned and fixed at desired positions in the base plate length direction Y.

[Embodiment 2]
FIG. 15 is a perspective view (drawing-substituting photograph) showing a trunk fixing system according to Embodiment 2, and includes a body posture fixing tool used to fix both arms in a raised position. The trunk fixing system 100 has the same configuration as the trunk fixing system 1 described above, and a body fixing device 101 disclosed in Patent Document 2 is attached to the upper body base plate 9. In FIG. 15, a suction type fixing bag 102 attached to the side plate 5 is also shown. As described above, various body posture fixing tools can be attached to the base plate 3.

[Embodiment 3]
A trunk fixing system according to Embodiment 3 to which the present invention is applied will be described with reference to FIGS. 16, 17 and 18. 16 is a perspective view showing a trunk fixing system according to Embodiment 3, FIG. 17 is a perspective view showing a shell fixture to which a shell is attached, and FIG. 18 is a perspective view showing a single shell fixture. It is.

(overall structure)
As can be seen from FIG. 16, the trunk fixing system 200 according to the third embodiment includes a shell fixture 210 to which another form of shell 150 can be attached instead of the above-described side plate 5 (see FIG. 7). This is different from the trunk fixing systems 1 and 100 according to the first and second embodiments described above. Therefore, in the following description, the shell 150 and the shell fixture 210 will be described, and the portions other than these portions will be described using the same names and reference numerals as necessary, and detailed description will be omitted. .

The shell fixture 210 can be attached to the base plate 9 via the index bar 8 as in the case of the side plate 5 described above, or directly to the base plate 9. In the trunk fixing system 200 shown in FIG. 16, the attachment position of the shell fixing tool 210 to the base plate 9 is set so that the chest / lung field region of the patient can be fixed by the shell 150.

(shell)
As shown in FIG. 17, the shell 150 includes, for example, an arch-shaped shell main body 151 made of a thermoplastic resin film or the like, and a pair of symmetrically attached to both side edges in the width direction (left-right direction) of the shell main body 151 It consists of frames 152L and 152R. The frames 152L and 152R have the same length as the length of the shell main body 151 (the head-to-tail direction). The first frame portion 152a stands vertically and the lower end of the first frame portion 152a. And a horizontal second frame portion 152b that is bent at a right angle and extends outward in the width direction.

In the vertical first frame portion 152a, a plurality of, for example, four long holes are formed at regular intervals in the length direction. Both ends of the shell main body 151 are fixed to the first frame portion 152a by fixing screws (not shown) passed through these long holes.

In the horizontal second frame portion 152b, pins 153 projecting upward in a columnar shape are formed at two locations apart in the length direction on the upper surface thereof. As will be described later, these pins 153 are clamped by the shell fixture 210, whereby the shell 150 is attached to the shell fixture 210.

(Shell fixture)
As shown in FIG. 18, the shell fixture 210 includes a rectangular frame 213 having a symmetrical shape in the width direction as a whole. The rectangular frame 213 has a narrow frame body 213F and a wide frame body 213B facing each other at regular intervals in the length direction (head-to-tail direction), and left and right narrow frame bodies facing each other at regular intervals in the width direction. 213L and 213R. The dimension in the width direction of the wide frame 213B is set to be the same as the dimension in the width direction of the base plate 10.

Both end portions in the width direction of the narrow frame body 213F are projecting portions 211 that project in a rectangular shape outward in the width direction from the left and right narrow frame bodies 213L and 213R, respectively. Similarly, the narrow frame bodies 213L and 213R at the both end edges in the width direction of the wide frame body 213B have a rectangular shape outward in the width direction from these frame bodies 213L and 213R, respectively. An overhanging portion 212 is formed.

Horizontal clamp mechanisms 220H extending in the width direction are arranged on the upper surfaces of both end portions of the narrow frame 213F and the wide frame 213B where the protruding portions 211 and 212 are formed. On the upper surface of the wide frame 213B, a vertical clamp mechanism 220V extending in the length direction is disposed at the center in the width direction. The lateral clamp mechanism 220H can adjust the clamp position of the shell 150 in the width direction. Although the vertical clamp mechanism 220V is not used in this example, when a shell having a shape corresponding to the crotch part of the patient is used instead of the shell 150, the clamp position of the part is changed to the crotch part of the patient. It is for adjusting along a length direction so that it may become a position corresponding to.

Position marks 218H are formed on the narrow frame body 213F and the wide frame body 213B at regular intervals in the width direction along each lateral clamp mechanism 220H. Based on the position mark 218H, the clamp position in the width direction of the shell 150 by the lateral clamp mechanism 220H can be visually confirmed. In addition, position marks 218V are formed on the wide frame body 213B at regular intervals in the length direction along the vertical clamp mechanism 220V. Based on the position mark 218V, the clamp position in the length direction of the crotch portion (not shown) of the shell by the vertical clamp mechanism 220V can be visually confirmed.

Next, on the upper surfaces of the left and right narrow frames 212L and 212R, receiving portions 214, which are columnar protrusions protruding upward, are formed at both ends in the length direction. The shell 150 is mounted on the shell fixture 210 in a state where the horizontal second frame portions 152b of the frames 152L and 152R on both sides thereof are placed on the left and right receiving portions 214. As will be described later, the height of the shell 150 with respect to the shell fixture 210 is defined by the receiving portion 214. In this state, the shell 150 is clamped to the shell fixture 210 by the lateral clamp mechanism 220H and the vertical clamp mechanism 220V. The

On the other hand, a strip-shaped recess 219 extending in the width direction in which the index bar 8 can be fitted is formed on the rear surface of the wide frame 213B in the rectangular frame 213. A pin hole 215 and a pin long hole into which a pair of fixing member positioning pins 37 (see FIG. 6) of the index bar 8 can be inserted into a portion of the frame body 213B where the recess 219 is formed, at positions separated in the width direction. 216 is formed. Bolt holes 217L and 217R are formed at positions spaced outward in the width direction with respect to the pin hole 215 and the pin long hole 216, respectively. The bolt holes 217L and 217R are formed at the same interval as the interval between the left and right index bar attachment holes 21L and 21R (see FIG. 4) of the base plate 9. Therefore, the shell fixture 210 can be fixed to the base plate 9 via the index bar 8 in the same manner as the side plate 5 (see FIG. 8).

Next, the configuration of the horizontal clamp mechanism 220H and the vertical clamp mechanism 220V will be described. Each of the lateral clamp mechanisms 220H includes a guide 221H made of an elongated rectangular plate extending in a straight line in the width direction, and a clamp 222H slidable in the width direction along the guide 221H.

The guide 221H is fixed to the upper surface of the rectangular frame 213 by bolts. Engagement holes 221b are formed on the upper surface of the guide 221H at regular intervals along the length direction. Each engagement hole 221b is formed at a position corresponding to each position mark 218H. Also, guide grooves 221a are formed in the longitudinal direction at both side edges of the guide 221H.

The clamp 222H includes a gate-shaped support portion 223H and protrusions 223a protruding inward from the lower end portions on both sides thereof, and slides in the width direction along the guide groove 221a without detaching from the guide 221H. Is possible. An engaging pin (not shown) that is biased toward the upper surface of the guide 221H is disposed inside the support portion 223H. Further, on both side surfaces of the support portion 223H in the sliding direction, A pair of recesses 224b for hooking fingers are formed, and an operator can slide his / her clamp 222H in the width direction along the guide 221H by placing a finger on the recess 224b.

When the clamp 222H is slid along the guide 221H with a predetermined force, the engagement pin fits into the engagement hole 221b at the slide position corresponding to one of the position marks 218H. Accordingly, the clamp 222H can be held at the position with a predetermined restraining force.

The support portion 223H of the clamp 222H is formed with a semicircular concave clamp surface 224a at the tip end facing the inner side in the width direction. The clamp surface 224a can come into contact with the pins 153 formed on both sides of the shell 150 from the outside in the width direction (see FIG. 17). Each clamp 222H abuts on the pin 153 from both sides in the width direction, whereby the shell 150 is clamped by the shell fixture 210.

On the other hand, since the vertical clamp mechanism 220V has the same configuration as the horizontal clamp mechanism 220H, the configuration will be briefly described. The vertical clamp mechanism 220V includes a guide 221V made of an elongated rectangular plate extending in a straight line in the length direction, and a clamp 222V slidable in the length direction along the guide 221V. Engagement holes 221b are formed on the upper surface of the guide 221V at regular intervals along the length direction. Each engagement hole 221b is formed at a position corresponding to each position mark 218V.

The clamp 222V includes a gate-shaped support portion 223V and protrusions 223a protruding inward from the lower end portions on both sides thereof, and slides in the width direction along the guide groove 221a without detaching from the guide 221V. Is possible. In addition, an engagement pin (not shown) that is urged against the upper surface of the guide 221V is disposed inside the support portion 223V of the clamp 222V. In addition, finger support recesses 224b are formed on both side surfaces of the support portion 223V in the sliding direction, and semicircular concave clamp surfaces 224a are formed at the front end portions facing the inner side in the width direction.

When the clamp 222V is slid along the guide 221V to a slide position corresponding to one of the position marks 218V, an engagement pin (not shown) fits into the engagement hole on the corresponding guide 221V side from above, and the clamp 222V Is fixed in that position.

The clamp surface 224a of the clamp 222V can come into contact with a pin (not shown) formed on the crotch portion of a shell (not shown) having a portion for fixing the crotch portion. By contacting the clamp 222V to the pin, the crotch portion of the shell is clamped to the shell fixture 210.

In the shell fixture 210 having the above-described configuration, a pair of left and right conical positioning pins 58L and 58R are screwed and fixed to the narrow frame 213F and the wide frame 213B of the rectangular frame 213. The positioning pins 58L and 58R are arranged at positions adjacent to the inner side in the width direction with respect to the respective lateral clamping mechanisms 220H. The positioning pins 58L and 58R are arranged to prevent the displacement of the suction type fixing bag 102 (see FIG. 15).

(Procedure for attaching shell 150 using shell fixture 210)
A procedure for attaching the shell 150 to the shell fixture 210 will be described mainly with reference to FIG. First, the lower surfaces of the left and right second frame portions 152 b of the shell 150 are placed on the receiving portions 214 of the shell fixture 210. Next, the clamp 222H of the lateral clamp mechanism 220H in the shell fixture 210 is slid toward the shell 150, and the clamp surface 224a is applied to the pin 153 of the shell 150 from the side. In this state, the clamp 222H is positioned at a predetermined position mark 218H.

As described above, in the case of the shell 150 shown in FIG. 17, the vertical clamp mechanism 220V is not particularly used. When attaching a shell in which a frame for attaching a shell crotch part is formed on the tail side in the length direction to the shell fixture 210, the crotch of the shell is placed at an appropriate position in the length direction using the vertical clamp mechanism 220V. The part can be fixed. The fixed position can be confirmed by looking at the position mark 218V.

Next, with reference to FIG. 16, a procedure for attaching the shell fixing member 210 to which the shell 150 is attached to the base plate 9 will be described. The procedure until the index bar 8 is attached to the base plate 9 is the same as that in the first embodiment. The pin holes 215 and the pin long holes 216 of the shell fixture 210 are positioned on the fixture positioning pins 37R and 37L of the index bar 8, and the shell fixture 210 is attached to the index bar 8 from above. Thereby, the shell fixture 210 is fixed to the base plate 9 through the index bar 8 while being positioned.

Thereafter, fixing bolts 63 (fixing knobs) are respectively attached to the index bar mounting holes 21L and 21R of the base plate 9 through the bolt holes 217L and 217R of the shell fixture 210. The shell fixture 210 can be securely fixed to the base plate 9 by these fixing bolts 63. In this example, the shell fixture 210 is fixed to the base plate 9 using the index bar 8, but the shell fixture 210 is fixed to the base plate 9 using the two fixing bolts 63 without using the index bar 8. It is also possible to do.

[Embodiment 4]
FIG. 19 is a perspective view showing a trunk fixing system according to the fourth embodiment. The trunk fixing system 201 according to the present embodiment is configured by arranging a shell fixing tool 210 to which the shell 150 is attached so as to fix a patient's buttocks area and a standing line area. The basic configuration of the torso fixing system 201 is the same as that of the torso fixing system 200 shown in FIG. 16, except that the knee rest base 6 for fixing the lower body is not attached and the mounting position of the shell fixing device 210 The point is different.

That is, in the trunk fixing system 201, the shell fixture 210 is placed from the upper surface of the upper body base plate 9 to the upper surface of the lower body base plate 10. The bolt holes 217L and 217R of the shell fixture 210 are located on the lower body base plate 10 side. The shell fixture 210 is fixed to the index bar 8 attached to the lower body base plate 10. In addition, it is also possible to fix the shell fixture 210 to the lower body base plate 10 using the index bar mounting holes 21L and 21R of the lower body base plate 10 without using the index bar 8.

[Embodiment 5]
A trunk fixing system according to Embodiment 5 to which the present invention is applied will be described with reference to FIGS. FIG. 20 is a perspective view showing a trunk fixing system according to the fifth embodiment. FIG. 21A is a perspective view showing the shell fixing tool, FIG. 21B is a perspective view showing the shell fixing tool in a state where the shell is attached, and FIG. It is a fragmentary sectional view shown.

(overall structure)
As can be seen from FIG. 20, in the trunk fixing system 300 according to the fifth embodiment, a shell 250 (see FIG. 21 (b)) of another form is attached instead of the side plate 5 (see FIG. 7). It is different from the trunk fixing systems 1 and 100 according to the first and second embodiments described above in that a possible shell fixing tool 310 is provided, and other configurations are the same as the trunk fixing systems 1 and 100. is there. Therefore, in the following description, the shell 250 and the shell fixture 310 will be described, and parts other than these parts will be described using the same names and symbols as in the first and second embodiments as necessary. Detailed description will be omitted.

The shell fixture 310 can be attached to the base plate 9 via the index bar 8 as in the case of the side plate 5 described above, or can be directly attached to the base plate 9. In the trunk fixing system 300 shown in FIG. 20, the attachment position of the shell fixing tool 310 to the base plate 9 is set so that the chest / lung field region of the patient can be fixed by the shell 250.

(Shell fixture)
Referring to FIG. 21 (a), the shell fixture 310 is a body posture fixture for fixing a patient by attaching a shell 250 or a suction type fixing bag (not shown), and has a generally rectangular outline as a whole. And a base plate 311 having a predetermined thickness and a plurality of inserts 320 for fixing the shell.

A pair of pin holes 312L and 312R into which a pair of fixture positioning pins 37L and 37R (see FIG. 6) of the index bar 8 can be inserted are formed at one edge portion of the base plate 311 in the length direction. Yes. Bolt holes 313L and 313R are formed on the left and right of the intermediate position in the length direction. The fixing bolts 314L and 314R attached to these bolt holes 313L and 313R are fixed to index bar attaching holes (not shown) of the base plate 9. Thereby, the base plate 311 can be reliably fixed to the base plate 9.

A pair of left and right view holes 315L and 315R are also formed in the base plate 311 so that the mounting position with respect to the base plate 9 can be confirmed. In addition, conical positioning pins 316 are screwed and fixed to the base plate 311 at four locations, and these positioning pins 316 are for preventing displacement of a suction type fixing bag (not shown). It is.

Next, a slit for attaching a shell having a constant width is formed along the length direction at both edge portions of the base plate 311 in the width direction. In this example, two outer slits 317L and two inner slits 318L are formed on the one side at regular intervals in the length direction, and the outer slit 317R and inner slit 318R are also constant in the length direction on the other side. Two are formed at intervals of. These slits have the same width and the same length, and the insert 320 for attaching the shell can be inserted in a removable state.

(shell)
As shown in FIG. 21B, the shell 250 that can be attached to the shell fixture 310 includes a rectangular shell body 251 made of a thermoplastic resin film or the like, for example, formed into an arch shape. At the central part in the length direction (head-to-tail direction) at the edges on both sides of the shell body 251 in the width direction, cut portions cut into a predetermined depth are formed inside the width direction. The edges on both sides are bisected in the length direction. Frames 252L and 252R having a fixed width and a fixed length are attached to the edges of the two sides.

As shown in FIG. 21 (c), each of the frames 252L and 252R includes a first frame portion 252a that stands vertically and a horizontal first portion that is bent at a right angle from the lower end of the first frame portion 252a and extends inward in the width direction. It has an L-shaped cross section with two frame portions 252b. The frame 252L of the shell 250 is inserted into a slit of the base plate 311, for example, the inner slit 318L, and in this state, the insert 320 is inserted into the inner slit 318L. Accordingly, the frame 252L is fixed to the inner slit 318L of the base plate 311.

The frames 252L and 252R on both sides of the shell 250 can be fixed to the inner slits 318L and 318R. The frames 252L and 252R of the shell 250 can also be fixed to the outer slits 317L and 317R. Further, when removing the shell 250, the insert 320 may be extracted from the inner slit or the outer slit.

[Embodiment 6]
FIG. 22 is a perspective view showing a trunk fixing system according to the sixth embodiment. The trunk fixing system 301 according to the present embodiment is configured such that the shell fixing tool 310 to which the shell 250 of the fifth embodiment is attached is arranged so as to fix the vicinity of the patient's buttocks and the standing line area. The basic configuration of the torso fixing system 301 is the same as that of the torso fixing system 300 shown in FIG. 20, except that the knee rest base 6 for fixing the lower body is not attached and the mounting position of the shell fixing tool 310 The point is different.

That is, in the trunk fixing system 301, the shell fixture 310 is placed from the upper surface of the upper body base plate 9 to the upper surface of the lower body base plate 10. The bolt holes 313L and 313R of the shell fixture 310 are located on the lower body base plate 10 side. The fixing bolts 314L and 314R attached to these bolt holes 313L and 313R are fixed to the index bar attaching holes of the base plate 10. The shell fixture 310 is fixed to the index bar 8 attached to the lower body base plate 10. As a result, the shell fixture 310 is securely fixed to the lower body base plate 10.

[Other embodiments]
In each of the above embodiments, the base plate 3 is divided into two parts for the upper body and the lower body. The base plate 3 can be divided into three or more parts in the length direction. For example, an extension base plate can be connected between the upper body base plate and the lower body base plate as necessary.

Claims (8)

1. A rectangular base plate on the top of the treatment table or bed,
   A posture fixing tool for fixing a person placed on the base plate to a predetermined posture;
   An index bar used for positioning each of the body posture fixtures at a predetermined position in the length direction of the base plate and attaching to the base plate;
   Have
   The base plate is composed of at least two first base plates and second base plates that are separable in the length direction thereof.
   A trunk fixing system in which at least one of the body posture fixing tools can be attached to at least one of the first and second base plates by the index bar.
2. The base plate is composed of an upper body base plate and a lower body base plate,
   As the body posture fixing device, a shell fixing device to which a shell for fixing a trunk and a bag can be attached, a knee rest for fixing a lower limb and a pelvis, and a heel rest for fixing a lower limb,
   By attaching the shell fixture to the upper body base plate, an upper body fixing device is configured,
   A lower body fixing device is configured by attaching at least one of the knee rest and the heel rest to the lower body base plate,
   By connecting the base plate for the upper body and the base plate for the lower body to constitute the base plate, and attaching the shell fixture and at least one of the knee rest and the heel rest to the base plate A whole body fixation device is constructed,
   The trunk fixing system according to claim 1.
3. The connecting portion of the base plate for the upper body and the base plate for the lower body is
   A first plate connecting end surface and a second plate connecting end surface having complementary concave and convex contour shapes;
   A joint pin protruding from the first plate connecting end surface in a direction parallel to the base plate and different from the length direction of the base plate;
   The joint pin can be mounted from the thickness direction of the base plate with the first and second plate connection end surfaces being aligned when viewed from the thickness direction of the base plate. Pin guide groove,
   With
   In the upper body base plate and the lower body base plate, the first plate connection end surface is formed on one side, and the second plate connection end surface is formed on the other side.
   The trunk fixing system according to claim 2.
4. A plurality of pairs of index bar mounting holes formed at the same position in the length direction of the base plate are formed at both ends in the width direction of the base plate at predetermined intervals along the length direction of the base plate,
   For each of the index bar mounting holes, a position mark for confirming the mounting position of the index bar mounted in the index bar mounting hole is formed at a position outside the width direction of the base plate.
   Each of the upper body base plate and the lower body base plate of the base plate has an index bar mounting groove for positioning with respect to the top plate.
   The trunk fixing system according to claim 3.
5. Each of the index bars is
   A bar body, a pair of bar positioning pins attached to the back surface of the bar body, a pair of fixture positioning pins attached to the surface of the bar body, and a pair of view holes.
   The pair of bar positioning pins can be inserted into each of the index bar mounting holes of each pair of the base plate,
   The pair of fixture positioning pins are for positioning the body posture fixture,
   The view hole is a through-hole extending through the bar body in the thickness direction so as to visually recognize the position mark on both sides of each pair of positioning pins in the bar body.
   The trunk fixing system according to claim 4.
6. Having a side plate used as the shell fixture,
   The side plate is a rectangular frame having a left side plate portion and a right side plate portion for fixing the shell and the bag,
   The left side plate portion and the right side plate portion are attached to the left and right frame portions of the rectangular frame,
   In the left and right frame portions, at least a pair of bolt holes and at least a pair of view holes are formed at the same position in the length direction,
   The interval between the pair of bolt holes is the same as the interval between the index bar mounting holes, and the rectangular frame can be mounted on the upper body base plate by passing a fixing bolt through each bolt hole and the index bar mounting hole. ,
   The pair of view holes are through holes extending through the bar body in the thickness direction in order to visually recognize the position mark.
   The trunk fixing system according to claim 4.
7. The knee mount is connectable to a positioning unit that can be attached to the index bar attached to the base plate, a knee base that can be connected to the upper surface of the positioning unit, and an upper surface of the knee base. And a knee rest base body portion on which a pair of support surfaces for is formed,
   The positioning unit includes a first unit base that can be attached to the index bar, a second unit base that is slidably attached to the first unit base in a length direction, and the second unit base that is attached to the first unit base. The trunk fixing system according to claim 4, further comprising: a fixing mechanism that fixes the unit base at a predetermined position in the length direction; and a fixing release lever that releases the fixing by the fixing mechanism.
8. The potboard is
   A base plate that can be attached to the index bar attached to the base plate;
   A first fixed base fixed on the upper surface of the base plate of the ridge,
   A second fixed base slidably attached to the first fixed base in a length direction;
   A first fixing mechanism capable of positioning and fixing the second fixed base to a predetermined position in a length direction with respect to the first fixed base;
   A pair of left and right saddle rest main body portions slidably attached to the second fixed base in the width direction;
   A pair of second fixing mechanisms capable of positioning and fixing each of the ridge rest main body portions at predetermined positions in the width direction;
   The trunk fixing system according to claim 4, comprising:

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