JP2001343891A - Ptca trainer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple means which enables a doctor to train a PTCA technique irrespective of time and places because the PTCA is a general treatment method in the field of the treatment, etc., of the coronary embolism. SOLUTION: This PTCA trainer has a flat plate which has routes consisting of recessed parts to be inserted with long-sized objects on its front surface, a transparent plate which covers the front surface of the flat plate and ports for insertion of the long-sized objects into the routes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trainer aiming at improving the technique of PTCA procedure. More specifically, the present invention relates to a PTCA trainer that can be practiced while visually observing the movement of a catheter, like a real PTCA, because it is easy to carry in a planar shape and has a transparent upper surface.

[0002]

2. Description of the Related Art Currently, PTCA is performed more than 100,000 times a year, and is a general treatment method in the field of treatment of coronary artery occlusion and the like. Therefore, it is imperative to train doctors who are skilled in PTCA procedures. However, PTCA training is performed exclusively on patients, and is not easy and frequent because it is necessary. It is not always ethical to train using actual patients. Particularly, in the case of a physician who has little experience of PTCA, there is a possibility that a patient who is a subject is at risk. In fact, the number of medical accidents caused by PTCA is not large, but it is actually occurring.

[0003] For the reasons described above, there has been a demand for means capable of simulating the PTCA technique. As a means to simulate the PTCA procedure, use the CD-ROM attached to "PTCA Procedure as Illustrated" (by Shinsuke Minato, Nagai Shoten).
Although there are three-dimensional models and the like used to show the procedure of TCA, it is not realistic to use them as daily training means for doctors.

[0004]

That is, an object of the present invention is to provide a simple training means that enables training of the PTCA procedure at any time and place.

[0005]

To achieve the above object, the present invention provides a flat plate having on its surface a path formed by a concave portion into which a long object is inserted, a transparent plate covering the flat plate surface,
PTC having a port for inserting a long object into the path
Provide an A trainer.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. The PTCA trainer of the present invention is a means capable of training a PTCA procedure regardless of time and place. The PTCA trainer includes a flat plate (hereinafter, referred to as a “body”) having a path formed by a concave portion into which a long object is inserted. ), A transparent plate (hereinafter, referred to as “upper surface”) covering the surface of the flat plate, and a port for inserting a long object into the path. However, the main body and the upper surface may be integrated.

The main application of the PTCA trainer of the present invention is training of PTCA using devices such as a guiding catheter, a balloon catheter, etc. Or training of PTA for arteriosclerosis obliterans in the arteries of the lower limbs, and also for training of endoscopic treatment in the gastrointestinal tract.

[0008] The material of the body of the PTCA trainer of the present invention is such that the device can smoothly pass through the path, and the sensation when the device passes through the path is such that the device passes through a blood vessel with blood flow during the actual procedure. It is necessary to have low friction so as to be close to the feeling when performing. The material of the main body may be any as long as it satisfies this condition. For example,
ABS resin, acrylic resin, methacrylic resin, polycarbonate, melamine resin, styrene resin, hard vinyl chloride resin, fluororesin, glass and the like can be mentioned. Among these, ABS resin and acrylic resin are preferred in view of moldability, production cost, strength and weatherability, and ABS resin is particularly preferred. In these cases, the sensation when the device passes through the path is close to the sensation when the guiding catheter passes through a coronary artery with blood flow, and the training can be performed with a sensation close to the actual procedure.

The main body may be integral, for example, A
The bottom may be provided by using an eco-plate or the like in order to cover the unevenness generated on the bottom surface portion by providing the path in the case of manufacturing with the BS resin. During training, a non-slip may be attached to prevent the main body from slipping.

[0010] The path provided in the main body may be annular or angular as long as the surface is smooth so as not to cause a sense of discomfort when the device passes. Since the sensation when the device passes through the route does not depend on the shape of the route, the shape may be appropriately selected depending on the manufacturing method or the like.

[0011] The width of the path only needs to be sufficient to allow the device to pass through, and may be appropriately selected depending on the application. For example, a narrower path may be provided to perform more difficult training. The width of the route may change on the way to perform more difficult training. On the other hand, a wide portion may be provided in the middle of the path for performing balloon catheter dilation training.

The shape of the path may be appropriately selected as needed. For example, it may have a relatively simple shape so that doctors and medical students who have not performed PTCA can train.
On the other hand, a very complicated path may be provided so that a skilled physician can perform training for the purpose of further skill improvement.

The number of routes may be any, but 1
It is preferable to have a plurality of trainers so that a single trainer can perform various kinds of training, and can perform training in a situation close to a complicated state of an actual coronary artery. For the same reason, it is preferable that the route has a plurality of branches in the middle. For example, a wide and simple path for beginners to train, a narrow and complicated path for advanced users to train, and a path with multiple branches in the middle, a balloon catheter And a path having a wide portion in the middle of the path for performing the training using. Corresponding routes may be provided so that one trainer can exercise both the left coronary artery and the right coronary artery.

The path may be provided with a portion filled with an elastic resin, for example, an elastomer (trade name: Jerry Cast, etc.) so that a training simulating a completely closed portion can be performed.
When packing the elastic resin, it is preferable to pack the resin in a replaceable state so that the resin damaged by use can be replaced, and if necessary, a different kind of resin can be used. Furthermore, such an elastic resin is applied along the outer wall of the path to simulate a partial occlusion, and training for expanding the vascular occlusion by expanding the balloon catheter and training for cutting the occlusion using a cutting catheter are provided. It is also possible to do. The elastic resin may be appropriately selected depending on the purpose.

It has a port for inserting a device in the path. Although the number of ports may be any, it is preferable that there are a plurality of ports so that a path can be appropriately selected as needed, or one path can be used as a path having a different shape.

The upper surface of the PTCA trainer of the present invention can be used to visually confirm the movement of the device in the path as well as to operate the guiding catheter in the coronary artery while watching the monitor during the actual procedure. It is transparent so that it can be operated.

The material of the upper surface portion may be any material as long as it is transparent, and examples thereof include an acrylic resin, a polycarbonate resin, a hard vinyl chloride resin, a polystyrene resin, and glass. Among these, acrylic resin is particularly preferred from the viewpoint of transparency, weatherability, handleability and production cost.

On the upper surface of the PTCA trainer of the present invention,
When performing a so-called Nanto training, injecting saline into the catheter and pulling out the guiding wire by the pressure, a drain hole for removing the saline injected into the passage may be provided. .

The upper surface of the PTCA trainer of the present invention may be removable for replacing the elastic resin. If the upper part is removable, the upper part may have optional parts with different clarity so that training according to different visibility situations can be performed.

The size of the PTCA trainer of the present invention may be any size. For example, an operation manual indicating the operation procedure and training method of the A4 size PTCA trainer is prepared, and the PTCA trainer can be carried as a set. ,
It may be A4 size, or palm size so that training can be performed while traveling by train or the like. Further, the size may be large so as to simulate the actual shape of the heart, the arrangement of the aorta and the coronary artery, and to train in a situation closer to the actual procedure.

[0021] The PTCA trainer of the present invention can be used for guiding catheters, balloon catheters and other devices.
usability, trackability, c
It can also be used for performance tests on parameters such as lossability. In this case, the reach of the device is measured, and the
A scale may be provided on the route so that the bity can be determined. As a path used for device testing, a path used for training may be used, or a dedicated path for testing may be provided. When a dedicated path is provided, the width, shape, and the like of the path may be appropriately selected according to the purpose of the test. Further, a dedicated port for inserting a device into the performance test path may be provided.

The device such as a guiding catheter or a balloon catheter used for training using the PTCA trainer of the present invention may be any one, and may be a commercially available one. Also, when training with a guiding catheter, a guide wire may be used,
The guidewire may be used without a guidewire and inserted only with a guiding catheter. When a guide wire is used, any wire may be used, and a commercially available wire may be used. further,
For the training of kissing technique,
Two guide wires may be used for one guiding catheter. For the convenience of training, a dedicated device may be attached. For example, a training catheter that is shorter and more simplified than an actual catheter may be housed in the bottom portion of the trainer body. In addition, as a dedicated device, pre-sha of the guide wire
A ping mold may be included.

The PTCA trainer of the present invention may include other components such as electronic media. For example, a guide function using an LED for displaying a training route may be added. Further, a function of displaying the degree of achievement of the training in a score format or a function of displaying the time required for the training may be added. further,
To facilitate carrying, the main body may be housed in a case or may have a handle.

[0024]

EXAMPLES The present invention will be further described with reference to the following examples, but the present invention is not limited to these examples. FIG. 1 shows an overall view of a PTCA trainer which is an example of an embodiment of the present invention.

In FIG. 1, reference numerals 1 to 3 represent ports into which devices are inserted. Of these ports, one is PT
This is the port normally used for CA training. 2 is for training for advanced users using area 2 described later,
This port is used when it is difficult to transmit torque to the device and wants to shorten the distance to the area to make it easier to transmit torque. Reference numeral 3 denotes a port used when performing device performance evaluation described later.

When performing PTCA training, a device such as a guiding catheter inserted from 1 or 2 includes:
After passing through the simulated aorta represented by 4, each training area is entered.
The training area varies in width and shape depending on the application.
For example, the area for beginners represented by 5 has a wide range of paths so that doctors and medical students with little PTCA experience can train,
The shape is also simple. On the other hand, the area for advanced users represented by 6
Narrow sections and sections with complex shapes are provided for skilled physicians to train to improve their skills.

The PTCA trainer of the present invention is designed so as to be able to cope with various kinds of training according to the purpose. For example, a portion indicated by 9 is filled with an elastic resin to simulate a completely closed portion. The drain hole indicated by 11 is used to remove saline injected into the channel when a saline solution is injected into the catheter and the guide wire is pulled out under the same pressure and a Nanto method is performed. You.

7 and 8 are pus of medical long devices such as guiding catheters and balloon catheters.
availability, trackability, cro
This is a performance evaluation area used when evaluating performance such as ssability. Each area is designed so that performance can be evaluated with respect to different parameters, and a scale indicated by 10 is provided so that the reach distance can be confirmed.

FIG. 2 is a partial sectional view of the PTCA trainer of the present invention. In FIG. 2, 12 indicates a transparent upper surface, and 13 indicates a main body provided with a path. From FIG. 2, it can be confirmed that the main body is provided with the path including the concave portion and that the upper surface is transparent so that the movement of the device in the path can be confirmed.

[0030]

As described above, the PTCA trainer of the present invention has a PTC that is similar to that when a catheter passes through a coronary artery during an actual procedure, regardless of time and place.
A Training of technique can be performed.

[Brief description of the drawings]

FIG. 1 is an overall view of one embodiment of a PTCA trainer of the present invention.

FIG. 2 is a partial cross-sectional view of one embodiment of the PTCA trainer of the present invention.

[Explanation of symbols]

1 Port used normally for PTCA training 2 Port used when torque is difficult to transmit to devices 3 Port used for device performance evaluation 4 Pseudo-aorta 5 Beginner area 6 Advanced area 7 Performance evaluation Area 1 8 Performance evaluation area 2 9 Pseudo complete blockage part 10 Ruler 11 Drain hole 12 Top surface 13 Main body

Claims (10)

[Claims] 1. A PTCA having a flat plate having a path formed by a concave portion into which a long object is inserted, a transparent plate covering the flat plate surface, and a port for inserting the long object into the path.
trainer. 2. The P according to claim 1, wherein the number of the paths is plural.
TCA trainer. 3. The PTCA trainer according to claim 1, wherein the path has a plurality of branches. 4. The PTCA trainer according to claim 1, wherein the PTCA trainer has a portion simulating an obstruction in the middle of the path. 5. The PTCA trainer according to claim 1, wherein a drain hole is provided in the path. 6. The PTCA trainer according to claim 1, wherein said upper surface is a removable flat plate. 7. A medical length comprising a flat plate having a path formed by a concave portion into which a long object is inserted, a transparent plate covering the flat plate surface, and a port for inserting the long object into the path. Tester for measuring device. 8. A medical long object is simulated by inserting a long medical object into a path formed by a concave portion provided on a flat plate and passing the long object through the path. How to train the procedure. 9. The method of claim 8, wherein the training is training of a PTCA procedure using a device such as a guiding catheter. 10. The performance of a medical elongate object is evaluated by inserting a medical elongate object into a path formed by a concave portion provided on a flat plate and passing the medical elongate object on the path. how to.