JP7067726B2 - Cage - Google Patents

Description

The present invention relates to a cage that holds a catheter.

As a method for treating arrhythmia, catheter ablation is known in which the site of abnormal electrical excitement that causes arrhythmia is burned off with a catheter. In this treatment method, a catheter is inserted into the heart from the base of the thigh through a blood vessel, and a high-frequency current is applied from an electrode at the tip of the catheter to cauterize the deep myocardium.

Japanese Unexamined Patent Publication No. 2012-17777

In the above treatment, a plurality of catheters are usually used, and each catheter is inserted into the human body. In order to properly incinerate the myocardium, it is desirable to hold each catheter inserted in the human body.
However, conventionally, since the side (grip portion) of the catheter that is not inserted into the human body is merely placed on the tray, the postures of the plurality of catheters inserted into the human body change. There is a fear.

Therefore, the present invention has been made in view of these points, and an object of the present invention is to provide a cage capable of appropriately holding the posture of the catheter in use.

In one aspect of the present invention, it is a cage that holds a catheter having a shaft portion and a grip portion to which the shaft portion is connected, and the support portion that supports the shaft portion and the shaft portion are formed by the support portion. Provided is a cage comprising a posture holding member for holding a posture of the catheter by sandwiching the catheter.

Further, the posture holding member may adjust the posture of the catheter by changing the holding state so as to twist the shaft portion with the support portion.

Further, an electrode portion is provided at the tip opposite to the grip portion in the longitudinal direction of the shaft portion, and the posture holding member can change the position of the electrode portion and the position of the electrode portion by changing the holding state. The orientation may be adjusted.

Further, the posture holding member is provided in a rotating portion rotatably provided between a close position close to the support portion and a separated position separated from the support portion, and the rotating portion. When the rotating portion is located at the close position, the shaft portion may be urged toward the support portion to have an urging portion for sandwiching the shaft portion with the support portion.

Further, the support portion is a groove portion that supports the shaft portion on the bottom surface, and the urging portion has a curved portion that protrudes from the rotating portion to the bottom surface and is formed in a curved shape. The shaft portion may be urged when the rotating portion is located at the proximity position.

Further, the posture holding member is rotatably supported by a rotating portion provided rotatably between a close position close to the support portion and a separated position separated from the support portion, and the rotating portion. The outer peripheral surface may have a roller that sandwiches the shaft portion with the support portion when the rotating portion is located at the close position.

Further, the roller is continuously formed with a plurality of outer peripheral surfaces having different radii, the rotating portion is provided with an opening in which the outer peripheral surface is exposed, and the posture holding member is provided with the opening. The shaft portion may be twisted with the support portion by rotating the outer peripheral surface exposed from the above.

Further, the rotating portion has a first locking portion that locks to the support portion when it is located at the close position and a second locking portion that locks to the support portion when it is located at the separated position. And may have.

Further, the support portion and the posture holding member may be provided on the upper surface side of the cage at predetermined intervals, and may hold the postures of the plurality of catheters together.

According to the present invention, it is possible to provide a cage that can appropriately hold the posture of the catheter in use.

It is a perspective view which shows the structure of the cage 1 which concerns on one Embodiment. It is a top view of the cage 1. It is a side view of the cage 1. It is a figure for demonstrating the state which the cage 1 holds a plurality of catheters 100. It is a figure which looked at the cage 1 of FIG. 4 from the side view. It is a top view of the main body part 10. A cross-sectional view taken along the line AA and a cross-sectional view taken along the line BB of FIG. 2 are shown. It is a figure for demonstrating the structure of the posture holding member 20 which concerns on a modification. It is a figure which looked at the posture holding member 20 of FIG. 8 from the side view. FIG. 8 is a sectional view taken along the line CC of FIG.

<Structure of cage>
The configuration of the cage 1 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 6.

FIG. 1 is a perspective view showing the configuration of the cage 1 according to the embodiment. FIG. 2 is a plan view of the cage 1. FIG. 3 is a side view of the cage 1.

The cage 1 is a tray on which a medical catheter is placed. The catheter placed on the cage 1 (catheter 100 in FIG. 4) is, for example, a catheter used for catheter ablation. The catheter has a shaft portion, an electrode portion, and a grip portion. The shaft portion is made of a flexible material and is inserted into the human body. The electrode portion is provided at the tip of the shaft portion and has a function of cauterizing the myocardium. The grip portion is connected to the shaft portion and is a portion to be gripped for operation by a doctor or the like.

FIG. 4 is a diagram for explaining a state in which the cage 1 holds a plurality of catheters 100. FIG. 5 is a side view of the cage 1 of FIG.
A plurality of catheters 100 are placed on the cage 1 during the catheter ablation operation as shown in FIG. In the present embodiment, the cage 1 also has a function of holding the posture of the catheter 100 in which the electrode portion is inserted into the human body. The cage 1 also has a function of adjusting the position and orientation of the electrode portion on the distal end side of the catheter 100. As shown in FIG. 1, the cage 1 has a main body portion 10 and a posture holding member 20.

The main body 10 is made of resin, for example, and has a rectangular parallelepiped shape. However, the present invention is not limited to this, and the main body portion 10 may have another shape. The main body 10 functions as a mounting portion on which a plurality of catheters 100 can be mounted in a recess formed on the upper surface side.

FIG. 6 is a plan view of the main body 10. As shown in FIG. 6, the main body portion 10 has a grip portion support portion 12, a shaft support portion 14, and an intermediate recess 16. A plurality (4 each) of the grip portion support portion 12, the shaft support portion 14, and the intermediate recess 16 are provided at predetermined intervals. The grip portion support portion 12, the shaft support portion 14, and the intermediate recess 16 are arranged in a straight line.

The four grip portion support portions 12 are provided on one end side of the main body portion 10, and are portions that support the grip portion 120 of the catheter 100 as shown in FIG. The grip portion support portion 12 is a V-shaped groove portion here, and is in contact with the outer peripheral surface of the grip portion 120 to support the grip portion 120. The grip portion support portion 12 is formed so as to support the grip portion 120 of the catheter 100 having different sizes.

The four shaft support portions 14 are provided on the other end side of the main body portion 10, and are portions that support the shaft portion 110 of the catheter 100 as shown in FIG. The shaft support portion 14 supports a part of the grip portion 120 side in the longitudinal direction of the shaft portion 110. The shaft support portion 14 is a U-shaped groove portion here, and supports the shaft portion 110 on the bottom surface.

The four intermediate recesses 16 are recesses formed between the grip portion support portion 12 and the shaft support portion 14. The depth of the intermediate recess 16 is smaller than the depth of the grip portion support portion 12 and larger than the depth of the shaft support portion 14.

As shown in FIG. 1, the posture holding member 20 is provided on the other end side of the upper surface of the main body 10. The posture holding member 20 is provided on each of the four shaft support portions 14. Although the details of the posture holding member 20 will be described later, the posture holding member 20 holds the posture of the catheter 100 by sandwiching the shaft portion 110 with the shaft supporting portion 14 in a state where the grip portion 120 of the catheter 100 is placed on the main body portion 10. .. This allows the catheter 100 in use to be properly held.

By providing the posture holding member 40 and the shaft support portion 14, the postures of the four catheters 100 can be held at the same time as shown in FIG. As a result, for example, when a plurality of catheters 100 are inserted into the human body, the posture of each catheter 100 can be maintained, so that it is possible to prevent the position and orientation of the electrode portion from changing in the human body. In particular, since catheter ablation is performed with a plurality of catheters 100 inserted into the human body, it is effective to use the cage 1 of the present embodiment in the operation of catheter ablation.

<Detailed configuration of posture holding member>
The detailed configuration of the posture holding member 20 for holding the posture of the catheter 100 will be described with reference to FIGS. 1 to 6 and 7 described above. FIG. 7 shows a sectional view taken along the line AA and a sectional view taken along the line BB of FIG.

The posture holding member 20 is provided so as to be switchable between a holding state in which the shaft portion 110 supported by the shaft support portion 14 is held and a non-holding state in which the shaft portion 110 is not held. In FIG. 5, of the four posture holding members 20, the three posture holding members 20 on the right side are in the holding state, and the posture holding member 20 at the left end is in the non-holding state.
In the present embodiment, four posture holding members 20 are provided, but the configuration of each posture holding member 20 is the same. The posture holding member 20 is made of, for example, resin. The posture holding member 20 has a rotating portion 22, an urging portion 24, and locking portions 26 and 27.

The rotating portion 22 is rotatably attached to the main body portion 10. The rotating portion 22 is rotatably provided between a close position close to the shaft support portion 14 and a separated position away from the shaft support portion 14. The posture holding member 20 is in a holding state in which the shaft portion 110 is held when the rotating portion 22 is located in a close position, and is in a non-holding state in which the shaft portion 110 is not held when the rotating portion 22 is located in a separated position. Become.

An operating portion 22a is provided on one end side in the longitudinal direction of the rotating portion 22, and an operating portion 22b is provided on the other end side in the longitudinal direction. When the rotating portion 22 is located at the separated position, the user presses the operating portion 22a, so that the rotating portion 22 rotates to the close position. Similarly, when the rotating portion 22 is located at a close position, the user presses the operating portion 22b, so that the rotating portion 22 rotates to a separated position. Further, as shown in FIG. 2, an opening 22c is formed on the central side of the rotating portion 22 in the longitudinal direction. The opening 22c is a rectangular through hole here.

As shown in FIG. 3, the urging portion 24 is provided in the central portion on the back side of the rotating portion 22. The urging portion 24 is provided at a position facing the opening 22c of the rotating portion 22. The urging portion 24 is located in the shaft support portion 14 which is a groove when the rotating portion 22 is located in a close position, and is located above the shaft support portion 14 when the rotating portion 22 is located in a separated position. do. Then, when the rotating portion 22 is located at a close position, the urging portion 24 urges a part of the shaft portion 110 toward the shaft supporting portion 14 and becomes the shaft supporting portion 14 as shown in FIG. Hold a part with.

The urging portion 24 projects from the back surface of the rotating portion 22 toward the bottom surface of the shaft support portion 14, and is formed in a J shape here. The urging portion 24 has a curved portion 24a having a curved shape on the tip side. The urging portion 24 has elasticity, and the curved portion 24a urges the shaft portion 110 when the rotating portion 22 is located at a close position. As a result, even if catheters 100 having different diameters of the shaft portion 110 are placed, the urging portion 24 can be appropriately held by coming into contact with the shaft portion 110 while bending.

As shown in FIG. 7, the locking portion 26 is provided on one end side of the rotating portion 22 in the longitudinal direction, and is a shaft support portion when the rotating portion 22 is located at a close position (FIG. 7A). It is a first locking portion that locks to 14. When the user locks the locking portion 26 to the shaft support portion 14 via the operating portion 22a, a snap feeling is generated.
As shown in FIG. 7, the locking portion 27 is provided on the other end side of the rotating portion 22 in the longitudinal direction, and supports the shaft when the rotating portion 22 is located at the separated position (FIG. 7 (b)). It is a second locking portion that is locked to the portion 14. When the user locks the locking portion 27 to the shaft support portion 14 via the operating portion 22b, a snap feeling is generated.
By causing the locking portions 26 and 27 to give a snap feeling as described above, the user recognizes that the rotating portion 22 is located at a close position or a separated position without having to bother to look at the rotating portion 22. can.

<Example of using the cage>
An example of using the cage 1 having the above-described configuration will be described. Here, it is assumed that the catheter 100 is inserted into the human body.

First, the user places the grip portion 120 side of the catheter 100 on the cage 1 in a state where the distal end side of the catheter 100 is inserted into the human body. Specifically, the user causes the grip portion 120 to be supported by the grip portion support portion 12. Further, the user causes the shaft portion 110 to be supported by the shaft support portion 14 in a state where the rotating portion 22 is located at a separated position.

Next, the user presses the operation unit 22a to rotate the rotating unit 22 located at the separated position to the close position. Then, the urging portion 24 of the rotating portion 22 sandwiches the shaft portion 110 with the shaft supporting portion 14. As a result, the posture of the catheter 100 inserted into the human body is maintained. The user can adjust the orientation of the shaft portion 110 and the like in order to adjust the orientation of the electrode portion before rotating the rotating portion 22 to the close position.

<Modification example of posture holding member>
A modified example of the posture holding member 20 will be described with reference to FIGS. 8 to 10.

FIG. 8 is a diagram for explaining the configuration of the posture holding member 20 according to the modified example. FIG. 9 is a side view of the posture holding member 20 of FIG. FIG. 10 is a sectional view taken along the line CC of FIG. Note that FIG. 8 shows only two posture-holding members 20 for convenience of explanation.

The posture holding member 20 according to the modified example holds the posture of the shaft portion 110 of the catheter 100 and can adjust the posture. The posture holding member 20 according to the modified example has a rotating portion 22 and a roller 30.

Since the rotating portion 22 has the same configuration as described above, detailed description thereof will be omitted.
The roller 30 is attached to the portion of the opening 22c of the rotating portion 22. Specifically, the roller 30 is attached to the rotating portion 22 so that the outer peripheral surface 31 is exposed from the opening 22c. When the rotating portion 22 is located at a close position, the outer peripheral surface 31 of the roller 30 sandwiches the shaft portion 110 with the shaft supporting portion 14 (see FIG. 10).

The roller 30 is rotatably supported by the rotating portion 22. The roller 30 rotates when the user of the cage 1 rotates the outer peripheral surface 31 with a finger or the like. For example, the user rotates the outer peripheral surface 31 in a state where the shaft support portion 14 and the outer peripheral surface 31 sandwich the shaft portion 110.

The roller 30 is continuously formed with a plurality of outer peripheral surfaces 31 having different radii. For example, three outer peripheral surfaces 31 having three different radii are formed so as to be continuous without a step in the circumferential direction. As a result, when the outer peripheral surface 31 rotates while the shaft portion 110 is sandwiched, the sandwiched state changes so that the shaft portion 110 sandwiched between the shaft support portion 14 and the outer peripheral surface 31 is twisted. For example, the shaft portion 110 is twisted when the outer peripheral surface having a small radius is rotated from the state where the outer peripheral surface having a small radius is in contact with the shaft portion 110 to the state where the outer peripheral surface having a large radius is in contact with the shaft portion 110. At this time, the degree of twist of the shaft portion 110 may change depending on the amount of rotation of the roller 30.

By twisting the shaft portion 110 in this way, the posture (position and orientation) of the shaft portion 110 is adjusted. As a result, the electrode portion of the shaft portion 110 inserted in the human body is also finely adjusted. For example, during catheter ablation, the electrode portion of the catheter 100 is likely to be displaced due to the pulsation of the heart, but by making fine adjustments as described above, the displaced electrode portion can be returned to an appropriate position. can.

The diameter of the shaft portion 110 of the plurality of catheters 100 held in the cage 1 may differ for each catheter 100. The diameter of the shaft portion 110 is, for example, a size of 1.3 (mm) to 3.0 (mm). On the other hand, when the roller 30 has a plurality of outer peripheral surfaces having different radii, one outer peripheral surface is selected from the plurality of outer peripheral surfaces of the roller 30 according to the diameter of the shaft portion 110 to obtain a diameter. A plurality of shaft portions 110 having different diameters can be appropriately held.

Further, in the above, it is assumed that the cage 1 has four grip portion support portions 12, a shaft support portion 14, and an intermediate recess 16 (see FIG. 1), but the present invention is not limited to this. For example, the cage 1 may have two grip portion support portions 12, a shaft support portion 14, and an intermediate recess 16, and a plurality of cages 1 may be configured to be connectable. The plurality of cages 1 may be connected by, for example, claws, and in this case, the plurality of cages 1 connected may be easily divided. However, the present invention is not limited to this, and a plurality of cages 1 may be connected by fixing them with Velcro (registered trademark).
Further, the shapes of the grip portion support portion 12, the shaft support portion 14, and the intermediate recess 16 may be slightly different for each cage 1 according to the size of the catheter 100. This makes it possible to hold the catheter 100 of various shapes and sizes.

<Effect in this embodiment>
In the above-described embodiment, the cage 1 for holding the catheter 100 holds the posture of the catheter 100 by sandwiching the shaft portion 110 with the shaft support portion 14 in a state where the grip portion 120 is placed on the main body portion 10. The posture holding member 20 is provided.
As a result, the posture of the catheter 100 can be maintained in a stable state while the catheter 100 is being used (for example, when the catheter 100 is inserted into the human body). As a result, it is possible to prevent the electrode portion of the catheter 100 from being displaced in the human body, so that the treatment can be smoothly performed.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes can be made within the scope of the gist. be. For example, the specific embodiment of the distribution / integration of the device is not limited to the above embodiment, and all or a part thereof may be functionally or physically distributed / integrated in any unit. Can be done. Also included in the embodiments of the present invention are new embodiments resulting from any combination of the plurality of embodiments. The effect of the new embodiment produced by the combination has the effect of the original embodiment together.

1 Cage 10 Main body 14 Shaft support 20 Posture holding member 22 Rotating part 22c Opening 24 Bounce part 24a Curved part 26, 27 Locking part 30 Roller 100 Catheter 110 Shaft part 120 Grip part

Claims (6)

A cage for holding a catheter having a shaft portion and a grip portion to which the shaft portion is connected.
The support part that supports the shaft part and
A posture holding member that holds the posture of the catheter by sandwiching the shaft portion with the support portion, and
Equipped with
The posture holding member is
A rotating portion rotatably provided between a close position close to the support portion and a separated position separated from the support portion, and a rotating portion.
A cage that is rotatably supported by the rotating portion and has a roller whose outer peripheral surface sandwiches the shaft portion with the supporting portion when the rotating portion is located at a close position . A cage for holding a catheter having a shaft portion and a grip portion to which the shaft portion is connected.
The support part that supports the shaft part and
A posture holding member that holds the posture of the catheter by sandwiching the shaft portion with the support portion, and
Equipped with
The posture holding member is a cage that adjusts the posture of the catheter by changing the holding state so as to twist the shaft portion with the support portion. The posture holding member is
A rotating portion rotatably provided between a close position close to the support portion and a separated position separated from the support portion, and a rotating portion.
An urging portion provided in the rotating portion, which urges the shaft portion to the support portion side when the rotating portion is located at the close position, and sandwiches the shaft portion with the support portion. Have,
The cage according to claim 1 or 2. The support portion is a groove portion that supports the shaft portion on the bottom surface.
The urging portion has a curved portion that protrudes from the rotating portion to the bottom surface and is formed in a curved shape.
The curved portion urges the shaft portion when the rotating portion is located at the close position.
The cage according to claim 3. The roller is formed by continuously forming a plurality of outer peripheral surfaces having different radii.
The rotating portion is provided with an opening in which the outer peripheral surface is exposed.
The posture holding member twists the shaft portion with the support portion by rotating the outer peripheral surface exposed from the opening.
The cage according to claim 1 . The rotating portion includes a first locking portion that locks to the support portion when it is located at the close position, and a second locking portion that locks to the support portion when it is located at the separated position. Have,
The cage according to any one of claims 3 to 5 .

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