JP2019133038A - Procedure simulator - Google Patents

Abstract

To provide a procedure simulator that allows an easy reproduction of a blood vessel running according to the purpose of a trainer, confirmation of the operability or the shape, for example, of a medical apparatus, and training of selecting a medical apparatus according to a purpose.SOLUTION: A procedure simulator 10 includes: a plate member 16; a simulated blood vessel 18 on the plate member 16; and a plurality of fixing tools 20 for fixing the simulated blood vessel 18 to the plate member 16. The fixing tool 20 is removable or attachable from or to different positions of the plate member 16 and from or to the simulated blood vessel 18.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a procedure simulator using simulated blood vessels.

  The embolic coil for medical use is used when filling an aneurysm such as an aneurysm or embolizing a blood vessel. There are various sizes and varieties of embolic coils, and the behavior of the embolic coil in a blood vessel differs depending on these differences (difference in swelling type, difference in coil shape, delivery device, etc.). In order to place an elongated linear member in a coil shape in a lumen such as a blood vessel, an advanced technique for embedding the lumen by three-dimensionally arranging the linear member is necessary. For this reason, in order to select appropriate varieties and acquire indwelling techniques, a tool that can be trained while being visually recognized by a doctor is desired.

  By the way, Patent Document 1 proposes a catheter simulator including a model holding unit having a groove formed in a predetermined shape and a blood vessel model (simulated blood vessel) arranged in the groove of the model holding unit.

JP 2011-242413 A

  However, only a simulated blood vessel having a shape that fits the groove of the model holding unit can be used as a training target using the catheter simulator of Patent Document 1. Therefore, the operability and shape of the medical device cannot be confirmed for different shapes of simulated blood vessels, and training for selecting a medical device according to the purpose cannot be performed.

  The present invention has been made in consideration of such problems, and can easily reproduce the blood vessel traveling according to the purpose of the trainee, confirm the operability and shape of the medical device, etc. An object of the present invention is to provide a technique simulator capable of training to select a corresponding medical device.

  One aspect of the present invention is a plate member, a simulated blood vessel disposed on the plate member, and attachable to and detachable from different positions of the plate member. It is a procedure simulator provided with a plurality of fixtures which fix to a board member.

  The plurality of fixtures may be detachable at both ends of the simulated blood vessel.

  Each of the plurality of fixtures may have a suction cup.

  The simulated blood vessel may be a simulated blood vessel having a bulging portion that simulates an aneurysm, a simulated blood vessel having a branched shape, a simulated blood vessel having a meandering shape, or a simulated blood vessel having a site that simulates a calcified site.

  A branch connector connectable to the simulated blood vessel is provided, and the branch connector is provided with an introduction port part into which a medical device can be inserted and a branch port connected to a tube, and liquid is supplied from the tube to the branch connector. You may be sent.

  An illuminating device installed below the plate member may be provided, and both the plate member and the fixture may have transparency.

  A plurality of the simulated blood vessels having different shapes may be provided, and the plurality of simulated blood vessels may be fixed in parallel to the plate member by the plurality of fixtures.

  According to the technique simulator of the present invention, as a fixture for fixing the simulated blood vessel to the plate member, a fixture that can be attached to and detached from the simulated blood vessel at a different position of the plate member is used. For this reason, it can be easily replaced with a plurality of simulated blood vessels having different shapes. This makes it possible to easily reproduce the blood vessel traveling according to the trainee's purpose, check the operability and shape of the medical device, and perform training for selecting the medical device according to the purpose.

1 is an overall schematic diagram of a procedure simulator according to an embodiment of the present invention. It is a disassembled perspective view in the principal part of a procedure simulator. FIG. 3A is a diagram showing another form of a simulated blood vessel. FIG. 3B is a diagram showing still another form of the simulated blood vessel.

  Hereinafter, preferred embodiments of the procedure simulator according to the present invention will be described with reference to the accompanying drawings.

  A procedure simulator 10 according to the embodiment of the present invention shown in FIG. 1 is used as a tool for doctor's procedure training. In particular, the procedure simulator 10 is preferably used for training a procedure for delivering and placing an embolic coil 14 in a blood vessel using a delivery catheter 12 such as a microcatheter.

  There are various sizes and varieties of the embolic coil 14. For example, the swelling type embolic coil 14 includes a type in which the outside of the linear member constituting the embolic coil 14 swells and a type in which the inside of the linear member swells. There are also differences in the coil shape and specifications of the delivery catheter 12 used for delivery into the blood vessel. There is also a difference in operability according to the combination of the embolic coil 14 and the delivery catheter 12. Usually, a doctor places a plurality of types of embolic coils 14 in combination depending on the shape and pathological condition of the placement location.

  The procedure simulator 10 is disposed under the plate member 16, a simulated blood vessel 18 fixed to the plate member 16, a plurality of fixtures 20 for fixing the simulated blood vessel 18 to the plate member 16, and the plate member 16. And an illumination device 22.

  1 and 2, the plate member 16 is a flat plate member made of a hard material (for example, acrylic resin, glass, etc.) having transparency (light transmittance). The planar shape of the plate member 16 is a quadrangular shape in the present embodiment, but may be other shapes. When the plate member 16 has a quadrangular shape, the plate member 16 may be square or rectangular. The plate member 16 has a thickness that can secure sufficient strength. The plate member 16 has a uniform surface without irregularities.

  The simulated blood vessel 18 is a tubular member simulating a human blood vessel, and is made of a soft material or a hard material having transparency (light transmittance). The procedure simulator 10 includes a plurality of simulated blood vessels 18 having different shapes. Regarding the plurality of simulated blood vessels 18, “different in shape” includes that the sizes (length, outer diameter, inner diameter, etc.) are different from each other.

  1 and 2 show a substantially straight simulated blood vessel 18a and a simulated blood vessel 18b having a shape in which a middle portion in the longitudinal direction is bent. As the simulated blood vessel 18 having another shape, for example, as shown in FIG. 3A, a simulated blood vessel 18c having a bulging portion 19 imitating an aneurysm or the like, or a simulated blood vessel having a branched shape as shown in FIG. 3B. 18d can also be used. The number of simulated blood vessels 18 that are simultaneously arranged on the plate member 16 is not limited to two as in this embodiment, and may be only one, or may be three or more.

  1 and 2, the plurality of fixtures 20 can be attached to and detached from the plate member 16 at different positions and can be attached to and detached from the simulated blood vessel 18, and the simulated blood vessel 18 is fixed to the plate member 16. Means. The plurality of fixtures 20 include a first fixture 20A that can be attached to and detached from the first end 23a that is one end of each simulated blood vessel 18, and a second end that is the other end of each simulated blood vessel 18. 23b has a second fixing tool 20B which is detachable. Each fixture 20 has an attachment / detachment portion 26 that can be attached / detached directly to / from the plate member 16.

  A branch connector 30 is connected to the first end 23 a of the simulated blood vessel 18 via a tubular first connector 28. An attachment / detachment portion 26 is attached to the branch connector 30 via an attachment portion 32. In the case of this embodiment, the branch connector 30 and the attaching / detaching portion 26 (and the attaching portion 32) can be collectively regarded as the first fixing tool 20A. The branch connector 30 has a branch port 30a, and a tube 34 is connected to the branch port 30a. An introduction port portion 31 with a valve mechanism for sealing is provided at the end of the branch connector 30 opposite to the side connected to the simulated blood vessel 18. Examples of the valve mechanism provided in the introduction port portion 31 include a mechanism that opens and closes the valve body by a predetermined operation (pushing, turning, etc.). Training is performed by inserting a medical device such as the delivery catheter 12 through the valve mechanism of the introduction port portion 31.

  A tube 38 is connected to the second end 23 b of the simulated blood vessel 18 via a tubular second connector 36. The second connector 36 includes a first member 36 a fitted to the second end 23 b of the simulated blood vessel 18 and a second member 36 b fitted to the tube 38. The first member 36a and the second member 36b are configured to be connectable and separable from each other. When the first member 36a and the second member 36b are connected to each other, the connection state is locked by a built-in lock mechanism (claw or the like). The second connector 36 further includes a release button 36c. When the release button 36c is pressed, the lock is released and the first member 36a and the second member 36b can be separated from each other. The second connector 36 may be a non-separable connector similar to the first connector 28.

  A detachable portion 26 is attached to the end of the tube 38. The detachable part 26 is attached to the tube 38 via the attachment part 32. The attachment portion 32 is, for example, a belt-shaped surface fastener that is wound around the tube 38 and is detachable from the tube 38. In the case of this embodiment, the end part of the tube 38 and the attaching / detaching part 26 (and the attaching part 32) can be collectively regarded as the second fixing tool 20B. The attachment portion 32 may be fixed to the end portion of the tube 38 so as not to be removable.

  In the present embodiment, the detachable portion 26 is a circular suction cup 26a made of a soft material (rubber or the like). The suction cup 26 a can be attached and detached at any position as long as it is the surface 16 a of the plate member 16. The suction cup 26a is preferably made of a colorless and transparent material. The detachable portion 26 may be a magnet, a hook-and-loop fastener, a pin (or hole), and the like. When the detachable portion 26 is a magnet, a magnetic member that can attract the magnet is provided on the surface 16 a of the plate member 16. The magnetic member has a certain wide area or a plurality of magnetic members are arranged on the plate member 16 so as to have a certain degree of freedom with respect to a position where the fixing member 20 is attached to the plate member 16.

  When the detachable portion 26 is a hook-and-loop fastener, the other hook-and-loop fastener that is paired with the hook-and-loop fastener is provided on the plate member 16. The other hook-and-loop fastener has a certain wide area or a plurality of the surface fasteners are arranged on the plate member 16 so as to have a certain degree of freedom with respect to the position where the fixture 20 is attached to the plate member 16. When the detachable portion 26 is a pin (or hole), a plurality of holes into which the pin can be inserted over a certain wide area so as to have a certain degree of freedom with respect to a position where the fixing device 20 is attached to the plate member 16. (Or a plurality of pins that can be inserted into the holes).

  The illuminating device 22 is a panel type illuminating device having a light emitting unit 40 (light emitting surface) on an upper surface. The light source of the light emitting unit 40 is, for example, an LED. In use, the plate member 16 is placed on the upper surface of the lighting device 22. The illumination light emitted from the light emitting unit 40 passes through the transparent plate member 16 to illuminate the simulated blood vessel 18 and also passes through the transparent simulated blood vessel 18. The size (light emitting area) of the light emitting unit 40 may be approximately the same as that of the plate member 16, may be larger than the plate member 16, or may be smaller than the plate member 16. It is preferable that the light emitting area can cover all.

  In FIG. 1, two tubes 34 connected to two branch connectors 30 are connected to each other by a connector 54 and are connected to a pump 44 via an outlet tube 42. A plurality of auxiliary fixtures 62 each having an attachment portion 60 and an attachment / detachment portion 61 are attached to the two tubes 34. The two tubes 34 can be attached to and detached from the plate member 16 by a plurality of auxiliary fixtures 62. The attachment part 60 and the attachment / detachment part 61 of the auxiliary fixture 62 are configured in the same manner as the attachment part 32 and the attachment / detachment part 26 described above. The two tubes 34 may be arranged along the end face of the plate member 16 as long as they can be arranged at positions that do not overlap the simulated blood vessel 18. Alternatively, the two tubes 34 may be disposed on the back side (the side opposite to the light emitting surface) of the light emitting unit 40. The auxiliary fixture 62 may not be used.

  The pump 44 is connected via an inlet tube 46 to a tank 48 in which the liquid L is stored. The liquid L is, for example, water (tap water, physiological saline) or the like, and is used as simulated blood supplied to the simulated blood vessel 18. The liquid L may be colored red to resemble blood. The two tubes 38 connected to the second end portion 23 b of each simulated blood vessel 18 are connected to each other by a connector 56 and connected to the tank 48 via a return tube 52.

  When the pump 44 is operated with the procedure simulator 10 assembled as shown in FIG. 1, the liquid L in the pump 44 is sucked through the inlet tube 46 and the liquid L is delivered to the outlet tube 42. . The liquid L is distributed to the two tubes 34 by the connector 54, and the liquid L is supplied to the branch connector 30 through the two tubes 34. The liquid L flows into the simulated blood vessel 18 via the branch connector 30 and also flows into the tube 38. The liquid L merges from the two tubes 38 at the connector 56, flows into the return tube 52, and returns to the tank 48 through the return tube 52. After returning to the tank 48, the liquid L is sucked from the inlet tube 46 again. As described above, the procedure simulator 10 is configured as a reflux blood vessel model including a circuit.

  The procedure simulator 10 according to the present embodiment has the following effects.

  According to this technique simulator 10, as a fixture 20 for fixing the simulated blood vessel 18 to the plate member 16, the fixture 20 that can be attached to and detached from the simulated blood vessel 18 at a different position of the plate member 16 is provided. Used. For this reason, it can be easily replaced with a plurality of simulated blood vessels 18 (simulated blood vessels 18a to 18d, etc.) having different shapes. This makes it possible to easily reproduce the blood vessel traveling according to the purpose of the trainer who is a doctor, confirm the operability and shape of medical devices such as the embolic coil 14 and the delivery catheter 12, and the like. Training for selecting a medical device can be performed efficiently.

  In addition, by simply arranging blood vessels of various shapes on the plate member 16, the characteristics of the embolic coil 14 and the delivery catheter 12 and the approach to the lesion can be achieved. If water colored in red is used as the liquid L, bleeding can be simulated. For example, until the embolization coil 14 is arranged, the liquid L that is not colored is circulated. After the embolization coil 14 is arranged, if the liquid L in the tank 48 is colored, the embolization state of the simulated bleeding site is also visually recognized. It is possible to easily determine whether the procedure has succeeded or failed. Since the procedure simulator 10 can be reused by removing the embolic coil 14 and the delivery catheter 12 after training, it is excellent in economic efficiency.

  The plurality of fixtures 20 can be attached to and detached from both ends of the simulated blood vessel 18. With this configuration, the simulated blood vessel 18 can be reliably fixed at an arbitrary position with respect to the plate member 16 even when the simulated blood vessel 18 is disposed in the circuit. In addition, since the plurality of fixtures 20 are detachable from both ends of the simulated blood vessel 18, the simulated blood vessel 18 can be easily replaced even during training.

  Each of the plurality of fixtures 20 has a suction cup 26a. Thereby, since the simulated blood vessel 18 can be fixed to an arbitrary position of the plate member 16 with a simple configuration, the running of the simulated blood vessel 18 can be freely changed.

  The simulated blood vessel 18 imitates a simulated blood vessel 18c (FIG. 3A) having a bulging portion 19 simulating an aneurysm, a simulated blood vessel 18d having a branched shape (FIG. 3B), a simulated blood vessel having a meandering shape, or a calcified site. In the case of a simulated blood vessel having a part, training for blood vessel traveling having any of these shapes can be easily performed.

  The procedure simulator 10 includes a branch connector 30 that can be connected to the simulated blood vessel 18, and the branch connector 30 includes an introduction port portion 31 into which a medical device can be inserted and a branch port 30a connected to the tube 34. The liquid L is fed from the tube 34 to the branch connector 30. With this configuration, the function of feeding the liquid L as simulated blood to the simulated blood vessel 18 and the function as the introduction path when delivering the medical device to the simulated blood vessel 18 are concentrated in the branch connector 30. Streamlined.

  The procedure simulator 10 includes the illumination device 22 installed under the plate member 16, so that the shape, loop diameter, coil length, and the like of the embolic coil 14 can be easily confirmed. In addition, it is easy to project the photographed simulated blood vessel 18 on a monitor (display) or the like via a tablet device, and training information for the same model can be shared.

  Since the plate member 16 and the fixture 20 are both transparent, the fixture 20 does not become a shadow under X-ray fluoroscopy. Moreover, since the fixture 20 having transparency can transmit the illumination light from the illumination device 22, it is possible to prevent a decrease in visibility around the simulated blood vessel 18.

  The procedure simulator 10 includes a plurality of simulated blood vessels 18 having different shapes, and the plurality of simulated blood vessels 18 can be fixed in parallel to the plate member 16 by a plurality of fixtures 20. With this configuration, the operability and shape of the medical device can be confirmed for the simulated blood vessels 18 having different shapes, so that efficient training is possible.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Procedure simulator 12 ... Delivery catheter 14 ... Embolization coil 16 ... Plate member 18, 18a-18d ... Simulated blood vessel 20 ... Fixture 22 ... Illumination device

Claims (7)

A plate member;
A simulated blood vessel disposed on the plate member;
A plurality of fixtures that are detachable at different positions of the plate member, are detachable from the simulated blood vessel, and fix the simulated blood vessel to the plate member;
A technique simulator equipped with The procedure simulator according to claim 1,
The procedure simulator in which the plurality of fixtures are detachable at both ends of the simulated blood vessel. In the procedure simulator according to claim 1 or 2,
Each of the plurality of fixing tools has a suction cup. In the procedure simulator according to any one of claims 1 to 3,
The procedure simulator, wherein the simulated blood vessel is a simulated blood vessel having a bulging portion simulating an aneurysm, a simulated blood vessel having a branched shape, a simulated blood vessel having a meandering shape, or a simulated blood vessel having a portion simulating a calcified portion. In the procedure simulator according to any one of claims 1 to 4,
A branch connector connectable to the simulated blood vessel;
The procedure simulator is provided with an introduction port part into which a medical device can be inserted and a branch port connected to a tube, and liquid is fed from the tube to the branch connector. In the procedure simulator according to any one of claims 1 to 5,
An illumination device installed under the plate member;
The plate member and the fixture are both a procedure simulator having transparency. In the procedure simulator according to any one of claims 1 to 6,
A plurality of simulated blood vessels having different shapes from each other;
A technique simulator capable of fixing a plurality of the simulated blood vessels in parallel to the plate member by the plurality of fixing tools.

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