JP6908296B2 - Organ model manufacturing equipment, organ model manufacturing method - Google Patents

Description

The present invention, apparatus for producing organ model, a method for producing an organ model.

Conventionally, there is an organ model for practicing procedures such as surgery. For example, Japanese Patent Application Laid-Open No. 2017-26791 discloses a three-dimensional modeling model having a hydrogel structure and a film formed on the outer periphery of the surface of the hydrogel structure. The three-dimensional modeling model is manufactured by arranging inclusions such as blood vessels at predetermined positions in a mold, injecting a hydrogel precursor solution into the mold, and curing the mold. The three-dimensional modeling model is also manufactured by applying a liquid containing a hydrogel precursor liquid with a three-dimensional printer to form a film, and then curing and laminating the film with ultraviolet rays or the like.

Japanese Unexamined Patent Publication No. 2017-26791

However, although the conventional organ model has a hollow simulated lumen such as a blood vessel, it is not suitable for practicing a procedure for an organ having a originally collapsed lumen such as the uterus.

Further, in the conventional method of manufacturing an organ model, a crushed simulation is formed in which materials are combined with a mold or a three-dimensional printer to form a predetermined shape, and the materials of adjacent parts are not bonded and are closed. The formation of the lumen is difficult.

Accordingly, the present invention can be practiced procedure for lumen collapsed, can be more easily manufactured, the manufacturing apparatus of the organ model, and an object thereof is to provide a method for producing organ model.

The organ model manufacturing apparatus of one aspect of the present invention includes a hole forming tool and an incising tool. The hole forming tool has a cylindrical blade portion, and the cylindrical blade portion forms a hole portion extending in the length direction of the block body in the block body. The incision tool has a support rod and a cutting edge portion connected to the tip end side of the support rod, and can be inserted into the hole portion. And, an incision is made in the width direction to form a widened portion in which the inside is widened in the width direction toward the back and closed in the thickness direction.

In the organ model manufacturing method of one aspect of the present invention, a block body, a hole forming tool having a cylindrical blade portion, and an incision tool having a support rod and a cutting edge portion connected to the tip side of the support rod are prepared. Then, the cylindrical blade portion forms a hole portion extending in the length direction of the block body in the block body, the incision tool is inserted into the hole portion, and the block body is located behind the hole portion. Is incised in the length direction and the width direction, and the inside is widened in the width direction toward the back and closed in the thickness direction to form a widened portion.

According to the present invention, it is possible to practice the procedure for the lumen collapsed, can be more easily manufactured, the manufacturing apparatus of the organ model, it is possible to provide a manufacturing method of an organ model.

It is a perspective view of the organ model manufactured by the organ model manufacturing apparatus which concerns on embodiment. It is sectional drawing of the organ model manufactured by the organ model manufacturing apparatus which concerns on embodiment. It is an exploded view which shows an example of the structure of the organ model manufacturing apparatus which concerns on embodiment. It is sectional drawing which cut in the length direction of the hole forming tool of the organ model manufacturing apparatus which concerns on embodiment. It is sectional drawing which cut the cutting edge portion of the incision tool of the organ model manufacturing apparatus which concerns on embodiment in the direction orthogonal to the length direction. It is explanatory drawing explaining the method of forming the simulated cervical canal by the hole forming tool of the organ model manufacturing apparatus which concerns on embodiment. It is explanatory drawing explaining the method of forming the simulated uterine cavity by the incision tool of the organ model manufacturing apparatus which concerns on embodiment. It is explanatory drawing explaining the method of forming the simulated uterine cavity by the incision tool of the organ model manufacturing apparatus which concerns on embodiment. It is explanatory drawing explaining the method of forming the simulated uterine cavity by the incision tool of the organ model manufacturing apparatus which concerns on embodiment. It is an exploded view which shows an example of the structure of the organ model manufacturing apparatus which concerns on the modification of embodiment. It is sectional drawing which cut in the length direction of the hole forming tool of the organ model manufacturing apparatus which concerns on the modification of embodiment. It is explanatory drawing explaining the state which attached the incision tool of the organ model manufacturing apparatus to the swing part which concerns on the modification of embodiment.

Hereinafter, embodiments will be described with reference to the drawings.

(Structure of organ model 1)
FIG. 1 is a perspective view of the organ model 1. FIG. 2 is a cross-sectional view of the organ model 1.

As shown in FIG. 1, the organ model 1 is composed of a hydrogel body B having a block shape and plasticity. The hydrogel body B has a three-dimensional network structure formed by cross-linking a polymer. The organ model 1 has a simulated cervical canal 2 that simulates the cervical canal of the uterus and a simulated uterine lumen 3 that simulates the body of the uterus.

As shown in FIG. 2, the simulated cervical canal 2 is recessed from the opening 2a provided on the end face of the hydrogel body B and extends in the length direction. The simulated cervical canal 2 has a substantially circular shape with an inner diameter of a predetermined diameter D and a predetermined length L1.

The simulated uterine cavity 3 extends from the back end 2b of the simulated cervical canal 2 so as to communicate with the simulated cervical canal 2. The inside of the simulated uterine cavity 3 widens in the width direction toward the back, and is closed in the thickness direction. The simulated uterine cavity 3 has a predetermined length L2.

As shown in FIG. 2, the predetermined diameter D is, for example, a diameter included in the range of 6 mm to 9 mm, and more preferably 8 mm. Further, the predetermined length L1 is, for example, a length included in the range of 2.5 cm to 3.5 cm, and more preferably 3 cm. Further, the predetermined length L2 is, for example, a length included in the range of 3 cm to 4 cm, and more preferably 3.5 cm.

A room 3b for preventing the fluid in the simulated uterine cavity 3 from leaking to the outside is provided on the back side of the simulated uterine cavity 3 and on both sides of the simulated uterine cavity 3. The width of the room portion 3b is not particularly limited, but is, for example, a width in the range of 0.5 cm to 2 cm, more preferably 1 cm.

The widths of the predetermined diameter D, the predetermined lengths L1 and L2, and the room portion 3b are not limited to this.

The hydrogel body B constitutes a block body. The simulated cervical canal 2 constitutes a hole. The simulated uterine cavity 3 constitutes a widening portion.

That is, the organ model 1 has a hole portion and a widening portion. The hole extends in the length direction from the opening 2a provided on the end face of the block body. The widened portion is communicated with the inner end portion 2b of the hole portion, and the inside is widened in the width direction and closed in the thickness direction toward the back.

(Structure of Organ Model Manufacturing Device 4)
Next, the organ model manufacturing apparatus 4 will be described.

FIG. 3 is an exploded view showing an example of the configuration of the organ model manufacturing apparatus 4 according to the embodiment. FIG. 4 is a cross-sectional view of the hole forming tool 20 cut in the length direction. FIG. 5 is a cross-sectional view of the cutting edge portion 34 of the incision tool 30 cut in a direction orthogonal to the length direction.

The organ model manufacturing apparatus 4 is made of, for example, resin or the like. The organ model manufacturing apparatus 4 has a holder 10, a hole forming tool 20, an incision tool 30, and a sheath 40.

The holder 10 is provided on a rectangular substrate 11, a pair of side plates 12 erected on both sides of the substrate 11, an end plate 13 erected on one end of the substrate 11, and an end plate 13. It is provided and has a positioning hole 14 for determining the formation position of the simulated cervical canal 2.

The holder 10 holds the hydrogel body B inside the substrate 11, the pair of side plates 12, and the end plate 13.

As shown in FIG. 4, the hole forming tool 20 has a cylindrical blade portion 21, a tip opening 22, an opening peripheral edge portion 23, an inner rod 24, a knob portion 25, and a concave groove 26.

The cylindrical blade portion 21 has a cylindrical shape having an outer diameter of a predetermined diameter D, and has a length obtained by adding the thickness of the end plate 13 to the predetermined length L1. Further, the cylindrical blade portion 21 is laid radially on the inner peripheral side of the tip portion, the tip opening 22 provided at the tip portion, the opening peripheral portion 23 having a sawtooth shape provided on the peripheral edge of the tip opening 22. It also has an inner rod 24.

The knob portion 25 is continuously provided on the base end side of the cylindrical blade portion 21, and is pressed against the peripheral edge portion of the positioning hole 14 when the cylindrical blade portion 21 is inserted into the positioning hole 14. The grip portion 25 has a concave groove 26 extending along the axial direction on the outer periphery so that the operator can easily pick it.

The hole forming tool 20 forms a simulated cervical canal 2 extending in the length direction of the hydrogel body B in the hydrogel body B by the cylindrical blade portion 21.

Returning to FIG. 3, the incision tool 30 has a grip portion 31, a leaf spring 32, a support rod 33, and a cutting edge portion 34.

The grip portion 31 extends in the length direction and is gripped by an operator.

The leaf spring 32 extends in an arch shape so as to extend from one edge portion 31a on the tip end side of the grip portion 31 and approach the other edge portion 31b on the opposite side. The leaf spring 32 is provided with a leaf spring opening 32a at the center for passing the support rod 33.

The support rod 33 is erected at the center of the tip surface of the grip portion 31 and extends toward the tip through the leaf spring opening 32a. The protruding length of the support rod 33 from the leaf spring 32 has, for example, a predetermined length L1.

The cutting edge portion 34 extends to the tip end side of the support rod 33 and is supported by the support rod 33. The cutting edge portion 34 has, for example, a predetermined length L2. The cutting edge portion 34 has a substantially hexagonal cross section (FIG. 5). The cutting edge portion 34 has a tip blade 34a provided at the tip portion so that the cutting edge faces the tip end, and side blades 34b provided on both side portions so that the cutting edge faces both sides.

The incision tool 30 has a support rod 33 and a cutting edge portion 34 connected to the tip side of the support rod 33, and can be inserted into the simulated cervical canal 2, and the hydrogel body B is inserted behind the simulated cervical canal 2. An incision is made in the length and width directions to form a simulated uterine lumen 3.

The sheath 40 has a cylindrical shape having an outer diameter of a predetermined diameter D or less. The sheath 40 has an inner peripheral portion having an inner width larger than the width of the support rod 33 and the cutting edge portion 34. The sheath 40 has, for example, a predetermined length L1, but is not limited to the length as long as it does not damage the simulated cervical canal 2 by the cutting edge portion 34. A flange 41 is provided at the base end of the sheath 40. The flange 41 has an outer diameter larger than the inner diameter of the leaf spring opening 32a so that the leaf spring 32 is pressed against the flange 41. The sheath 40 can be inserted into the simulated cervical canal 2, and the support rod 33 and the cutting edge portion 34 can be inserted into the inner peripheral portion.

That is, the organ model manufacturing apparatus 4 has a hole forming tool 20 and an incising tool 30. The hole forming tool 20 has a cylindrical blade portion 21, and the cylindrical blade portion 21 forms a hole portion extending in the length direction of the block body in the block body. The incision tool 30 has a support rod 33 and a cutting edge portion 34 connected to the tip end side of the support rod 33, and can be inserted into the hole portion. An incision is made in the width direction to form a widened portion in which the inside is widened in the width direction toward the back and closed in the thickness direction.

Further, the organ model manufacturing apparatus 4 has a holder 10 for holding the block body, and the holder 10 includes a substrate 11, a pair of side plates 12 erected on both sides of the substrate 11, and the substrate 11. It has an end plate 13 erected at the end of the plate 13 and a positioning hole 14 provided on the end plate 13 for determining the formation position of the hole.

Further, the organ model manufacturing apparatus 4 has a sheath 40 that can be inserted into the hole. In the hole forming tool 20, a knob portion 25 is continuously provided on the base end side of the cylindrical blade portion 21 so as to be pressed against the peripheral edge portion of the positioning hole 14 when the cylindrical blade portion 21 is inserted into the positioning hole 14. The incision tool 30 has a tip blade 34a provided at the tip so that the cutting edge faces the tip, and a side blade 34b provided at the side so that the cutting edge faces sideways, and can be inserted into the sheath 40. Is.

(Organ model manufacturing method)
Subsequently, an organ model manufacturing method using the organ model manufacturing apparatus 4 will be described.

FIG. 6 is an explanatory diagram illustrating a method of forming the simulated cervical canal 2 by the hole forming tool 20.

As shown in FIG. 6, the operator arranges the hydrogel body B between the pair of side plates 12 and presses it against the end plates 13. The operator picks the knob portion 25 with his / her fingers, inserts the cylindrical blade portion 21 into the positioning hole 14, and pushes the cylindrical blade portion 21 into the hydrogel body B until the knob portion 25 hits the peripheral edge portion of the positioning hole 14. .. The hydrogel body B cut by the opening peripheral edge portion 23 enters the cylindrical blade portion 21. The operator applies a rotational force to the knob portion 25 to rotate the cylindrical blade portion 21 in the axial direction. When the cylindrical blade portion 21 rotates, the inner rod 24 also receives a rotational force from the cylindrical blade portion 21 to rotate, and cuts the hydrogel body B in the cylindrical blade portion 21 in the direction orthogonal to the axis. When the operator pulls back the knob portion 25, the cylindrical blade portion 21 is pulled out together with the hydrogel body B in the cylindrical blade portion 21. A simulated cervical canal 2 is formed in the hydrogel body B.

7 to 9 are explanatory views illustrating a method of forming the simulated uterine cavity 3 by the incision tool 30.

The operator takes out the hydrogel body B from the holder 10, and as shown in FIG. 7, changes the direction of the hydrogel body B so that the opening 2a faces the opposite side of the end plate 13 to the holder 10. Hold it.

The operator inserts the sheath 40 into the simulated cervical canal 2 until the flange 41 is affixed to the peripheral edge of the opening 2a. Subsequently, when the operator pushes the incision tool 30 into the sheath 40 until the leaf spring 32 is pressed against the flange 41, the tip blade 34a incises the hydrogel body B in the length direction.

As shown in FIG. 8, when the operator swings, the side blade 34b incises the hydrogel body B in the width direction. As shown in FIG. 9, the operator swings the side blades 34b to both sides to form a simulated uterine cavity 3 in the hydrogel body B.

The operator uses the elastic force of the leaf spring 32 so that the inner side portion 3a of the simulated uterine cavity 3 is formed substantially linearly, and becomes deeper as it approaches both sides of the hydrogel body B. Further, the insertion depth of the cutting edge portion 34 may be adjusted so that the hydrogel body B becomes shallower as it approaches the central portion.

That is, the organ model manufacturing method includes a block body, a hole forming tool 20 having a cylindrical blade portion 21, and an incision tool 30 having a support rod 33 and a cutting blade portion 34 connected to the tip side of the support rod 33. Prepare, form a hole extending in the length direction of the block body in the block body by the cylindrical blade portion 21, insert the incision tool 30 into the hole part, and insert the block body in the length direction behind the hole part. And, an incision is made in the width direction to form a widening portion in which the inside is widened in the width direction toward the back and closed in the thickness direction.

As a result, the organ model manufacturing apparatus 4 can incise the hydrogel body B so that the strength of the simulated cervical canal 2 and the simulated uterine cavity 3 can be maintained, and the organ model 1 can be manufactured by a simpler operation. Can be done.

In addition, the practitioner can practice the procedure for the uterus in both the state where the lumen is crushed and the state where the lumen is expanded by perfusion or the like, using the organ model 1. For example, the practitioner inserts an endoscope into the simulated uterine lumen 3 via the simulated cervical canal 2, introduces fluid from the tip of the endoscope to expand the simulated uterine lumen 3, and bends the endoscope. You can practice movements, observation of the lumen, operation of treatment tools, operation of electric scalpels, and the like.

According to the embodiment, an organ model 1, an organ model manufacturing apparatus 4, and an organ model manufacturing method that can practice a procedure for an organ that originally has a collapsed lumen and can be manufactured more easily. Can be provided.

(Modified example of the embodiment)
In the organ model manufacturing apparatus 4 of the embodiment, the incision tool 30 is oscillated by an oscillating angle determined at the discretion of the operator, but the present invention is not limited to this. The organ model manufacturing apparatus 5 may be configured so that the swing angle of the incision tool 130 can be regulated.

FIG. 10 is an exploded view showing an example of the configuration of the organ model manufacturing apparatus 5. FIG. 11 is a cross-sectional view of the hole forming tool 120 cut in the length direction. FIG. 12 is an explanatory view illustrating a state in which the incision tool 130 is attached to the swing portion 116. In the description of this modification, the same components as those in the embodiment are designated by the same reference numerals in the drawings, and the description thereof will be omitted.

As shown in FIG. 10, the organ model manufacturing apparatus 5 has a holder 110, a hole forming tool 120, and an incision tool 130.

The holder 110 has a substrate 111. A pair of side plates 12 are erected on both side portions of the substrate 111, and end plates 13 are erected on one end portion. A pair of inclined edges 112 are provided on the other end of the substrate 111 so as to incline inward by a predetermined angle toward the center in the width direction from both sides. The predetermined angle θ is adjusted in advance so that the widening angle of the simulated uterine cavity 3 is optimal. A circular recess 113 is recessed between the pair of inclined edges 112. On the inner circumference of the circular recess 113, a circumferential convex portion 113a having a convex shape in the center in the thickness direction extends. Further, the opening ends 113b of the circular recesses 113 arranged to face each other have an inner width smaller than the inner diameter of the circular recess 113.

A disk portion 114 is rotatably provided on the inner peripheral side of the circular recess 113. On the outer periphery of the disk portion 114, a peripheral concave portion 114a having a concave shape at the center in the thickness direction extends, and engages with the peripheral convex portion 113a so that the disk portion 114 does not fall off. A support plate 115 extends to the other side of the disk portion 114. A swinging portion 116 is erected at the other end of the support plate 115. The swinging portion 116 is provided with a holding hole 117 penetrating along the extending direction of the support plate 115.

As shown in FIG. 11, the hole forming tool 120 has an inclined opening peripheral edge portion 123.

Returning to FIG. 10, the incision tool 130 has a grip portion 131 extending in the longitudinal direction. A support rod 133 is continuously provided on the tip end side of the grip portion 131. A cutting edge portion 134 is continuously provided on the tip end side of the support rod 133. The cutting edge portion 134 has a single-edged 134a. The support rod 133 and the cutting edge portion 134 are configured to be insertable into the holding hole 117. As shown in FIG. 12, when the operator inserts the support rod 133 and the cutting edge portion 134 into the holding hole 117 until the grip portion 131 is pressed against the peripheral edge portion of the holding hole 117, the incision tool 130 swings. It is attached to the portion 116.

Subsequently, an organ model manufacturing method using the organ model manufacturing apparatus 5 will be described.

The operator holds the hydrogel body B in the holder 110, inserts the cylindrical blade portion 21 from the opening peripheral edge portion 123 into the positioning hole 14, and pushes it into the hydrogel body B. When the operator rotates the cylindrical blade portion 21 in the axial direction and pulls back the grip portion 25, the simulated cervical canal 2 is formed in the hydrogel body B.

The operator turns the opening 2a so that it faces the other, and causes the hydrogel body B to be held by the holder 110.

When the operator turns the single-edged 134a to one side and pushes the cutting edge 134 into the holding hole 117 until the grip 131 is pressed against the peripheral edge of the holding hole 117, the hydrogel body B has a length. An incision is made in the direction. When the operator swings the swing portion 116 to the other side until the support plate 115 is abutted by the inclined edge 112, the incision tool 130 is rotated by the rotation of the disc portion 114, and the single-edged 134a is hydrogel. Make a lateral incision in body B.

Subsequently, the operator pulls out the cutting edge portion 134 from the holding hole 117, directs the single-edged blade 134a to the other side opposite to one side, and until the grip portion 131 is pressed against the peripheral edge of the holding hole 117. , The cutting edge portion 134 is pushed into the holding hole 117. When the operator swings the swing portion 116 to one side until the support plate 115 is abutted by the inclined edge 112, the single-edged 134a and the hydrogel body B are incised to the other side.

As a result, in the organ model manufacturing apparatus 5, the swing angle of the incision tool 130 is regulated to a predetermined angle θ by the inclined edge 112, and the organ model 1 having a widening portion having a constant widening angle can be manufactured more reliably. can.

In the embodiment and the modified example, the block body is composed of the hydrogel body B, but the present invention is not limited to this. The block body may be made of, for example, a deformable resin or the like.

In the embodiment and the modified example, the support rod 33 has a predetermined length L1 and the cutting edge portion 34 has a predetermined length L2, but the present invention is not limited to this. The support rod 33 and the cutting edge portion 34 may have different lengths.

In the embodiment and the modified example, the organ model 1 has described the example of the model of the uterus, but the present invention is not limited to this. The organ model 1 may be a model of another organ.

The present invention is not limited to the above-described embodiment, and various modifications, modifications, and the like can be made without changing the gist of the present invention.

1 ... Organ model, 2 ... Simulated cervical canal, 2a ... Opening, 2b ... Back end, 3 ... Simulated uterine cavity, 3a ... Backside, 3b ... Room, 4, 5 ... Organ model manufacturing device, 10, 110 ... holder, 11, 111 ... substrate, 12 ... side plate, 13 ... end plate, 14 ... positioning hole, 20, 120 ... hole forming tool, 21 ... cylindrical blade, 22 ... tip opening, 23 ... opening peripheral edge, 24 ... inner rod, 25 ... knob, 26 ... concave groove, 30, 130 ... incision tool, 31, 131 ... gripping part, 31a ... one edge, 31b ... other edge, 32 ... leaf spring, 32a ... leaf spring Opening, 33, 133 ... Support rod, 34, 134 ... Cutting edge, 34a ... Tip blade, 34b ... Side blade, 40 ... Sheath, 41 ... Flange, 112 ... Inclined edge, 113 ... Circular concave, 113a ... Circumferential convex Part, 113b ... Opening end, 114 ... Disk part, 114a ... Circumferential recess, 115 ... Support plate, 116 ... Swinging part, 117 ... Holding hole, 123 ... Inclined opening peripheral edge, 134a ... Single-edged, B ... Hydro Gel body, D ... predetermined diameter, L1, L2 ... predetermined length, θ ... predetermined angle

Claims (5)

A hole forming tool having a cylindrical blade portion and for forming a hole portion extending in the length direction of the block body in the block body by the cylindrical blade portion.
It has a support rod and a cutting edge portion connected to the tip side of the support rod, and can be inserted into the hole portion, and the block body is incised in the length direction and the width direction behind the hole portion. However, an incision tool for forming a widening portion, in which the inside is widened in the width direction toward the back and closed in the thickness direction,
An organ model manufacturing device that has. It has a holder for holding the block body, and has
The holder includes a substrate, a pair of side plates erected on both sides of the substrate, an end plate erected on an end portion of the substrate, and a position for forming the hole portion provided on the end plate. Has a positioning hole for determining,
The organ model manufacturing apparatus according to claim 1. It has a sheath that can be inserted into the hole,
The hole forming tool is provided with a series of knobs on the base end side of the cylindrical blade portion, which are pressed against the peripheral edge portion of the positioning hole when the cylindrical blade portion is inserted into the positioning hole.
The incision tool has a tip blade provided at the tip portion so that the cutting edge faces the tip, and a side blade provided at the side portion so that the cutting edge faces sideways, and can be inserted into the sheath. ,
The organ model manufacturing apparatus according to claim 2. The block body is a hydrogel body composed of hydrogel, and is a hydrogel body.
The hole is a simulated cervical canal,
The widened portion is a simulated uterine lumen communicating with the simulated cervical canal.
The organ model manufacturing apparatus according to any one of claims 1 to 3. A block body, a hole forming tool having a cylindrical blade portion, and an incision tool having a support rod and a cutting edge portion continuously provided on the tip end side of the support rod are prepared.
The cylindrical blade portion forms a hole portion extending in the length direction of the block body in the block body.
The incision tool is inserted into the hole, and the block body is incised in the length direction and the width direction behind the hole, and the inside is widened in the width direction and in the thickness direction toward the back. Forming a closed, widened part,
How to make an organ model.

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