JPH0490750A - Ultrasonic suture apparatus and suture needle - Google Patents

Abstract

PURPOSE:To achieve suture work smoothly and accurately with a handy suture by providing a holding means for holding stitching needles with an element to generate ultrasonic vibrations. CONSTITUTION:A piezeoelectric element and vibrators 15 and 16 are provided in guides 13 and 14 of a needle holder 10 for holding suture needles 1 to generate ultrasonic vibration. In operation, the suture needles 1 held on the guides 13 and 14 can be delivered automatically by a progressive wave generated by the ultrasonic vibration. In other words, the suture needles 1 as moving body are moved with the friction of the vibrators 15 and 16 to apply a large driving torque while the suture needles 1 are fixed by the friction of the vibrators 15 and 16 even when no high frequency voltage is applied. During the moving of the suture needle 1 by the progressive wave of the ultrasonic vibration, the suture needles 1 can be delivered without reversion by a holding pressure of the needle holder 10 thereon 1 and a friction thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an ultrasonic suturing device which is a medical instrument used in surgical operations and is capable of quickly suturing an incision during a surgical operation.

[Prior art and its problems] Conventionally, suturing work for incisions has been carried out using a suturing needle 1 shown in FIG.
This was done using a needle holder 2 shown in FIG.

The suturing needle 1 shown in FIG. 5 has a curved semicircular shape as a whole, with the left end serving as the needle hole IA and the right end serving as the needle tip IB.

The needle holder 2 shown in FIG. 6 is capable of holding the suture needle 1 in the needle holder 3 at the tip, and the operator holds the suture needle 1 threaded through the needle hole IA with the needle holder 2. In this state, the incision part of the human body is scooped and sewn in accordance with the curvature of the suture needle 1.

By the way, there is a problem when suturing the incision in this way because the suture needle 1 is curved as shown in FIG. The direction of movement of the needle is reversed, and the operator must use the suture needle I for suturing
The operator had to operate the needle holder 2 in such a way as to screw in the needle, which required a very high level of skill for the operator.

Furthermore, with limited surgical techniques, it may not be possible to perform such a screwing operation of the suture needle 1, which poses a problem in that it is difficult to suture the incision.

The present invention has been made in view of the above circumstances, and it is possible to suture an incision without requiring a high level of skill.
The purpose of the present invention is to provide an ultrasonic suturing device and a suturing needle that can be used together.

[Means for Solving the Problems] In order to achieve the above object, the invention set forth in claim 1 provides an ultrasonic suturing device by providing an element that generates ultrasonic vibrations in the holding means that holds the suturing needle. I am trying to configure it.

The invention set forth in claim 2 is characterized in that the suture needle is fed by the holding means.

[Function] According to these inventions, the suture needle held in the holding means can be automatically fed by the traveling wave generated by ultrasonic vibration, so scooping stitches can be performed without screwing the suture needle, and the Suture work using a suture needle can be performed smoothly.

[Example] An example of the present invention will be described with reference to FIGS. 1(A) to 1(C) and FIGS. 2 to 4.

The needle holder 10 is provided with needle holders 11 and 121 at the tip and guides 13 and 14 for holding the suture needle 1, respectively. These guides I3 and 14 are formed according to the curved shape of the suture needle 1, and
The suture needle 1 is held between these kites 13 and 14 and guided along the kites 13 and 14.

Further, as shown in FIG. 2, the bottoms of the guides 13 and 14 are provided with a
Ultrasonic transducers 15 and 16 are arranged. In addition, a high frequency power source 18 is connected to each of these ultrasonic transducers 15 and 16 via a cable 17 as shown in FIG. A high-frequency voltage is applied to the piezoelectric elements (paths shown in the figure) that drive the ultrasonic transducers 15 and 16, thereby causing the ultrasonic transducers 15 and 16 to vibrate in the direction indicated by the arrow A), which is the direction in which the suture needle 1 moves. It generates a traveling wave in the direction.

The ultrasonic transducers 15 and 16 apply a high frequency voltage to the piezoelectric element (path shown) to vibrate it, and use the traveling wave of this ultrasonic vibration to move the suture needle l in the direction of arrow (A). It is something that makes you It should be noted that ultrasonic rotary motors and ultrasonic linear motors are conventionally known as devices for operating movable objects such as the suture needle 1, and these motors can be incorporated into the tip of the needle holder 1o as extremely compact drive devices. It is possible.

This ultrasonic drive device uses traveling waves of ultrasonic vibration to move the suture needle 1, which is a moving body, by the friction of the vibrators 15 and 16, and provides a large drive torque and a high-frequency voltage. Even when no voltage is applied, the suture needle 1 is fixed by the friction of the vibrators 15 and 16. Also,
When the suturing needle 1 is moved by a traveling wave of ultrasonic vibration, the holding pressure of the needle holder 10 applied to the suturing needle 1 and its friction allow the suturing needle 1 to be fed out without returning.

Further, by coating the suturing needle 1 with a friction material having excellent wear resistance, it becomes possible to perform ultrasonic driving efficiently and to move the suturing needle 1 smoothly.

Next, the operation of the ultrasonic suturing device will be explained with reference to FIG.

First, as shown in FIG. 4, the guide 13 of the needle holder 10
The suture needle 1 is held within the suture needle 14. In this case, the suturing needle 1 is arranged perpendicularly to the suturing surface 21 of the human body 20.

In this state, the switch 19 is turned on and a high frequency voltage is applied to generate ultrasonic vibrations in the vibrators 15 and 16, thereby generating a traveling wave in the direction of arrow (A).

As a result, the suture needle 1 is inserted in the direction of the arrow (A) shown by the dotted line with the suture needle 1 held in the needle holder 10, and the incision 22 separated by the incision is inserted into the needle hole of the suture needle 1. I
It is sutured with suture thread 23 attached to A.

Note that at this time, the suture needle 1 inserted into the suture surface 21
If the suture needle l cannot be inserted in the correct direction, the suture needle l inserted into the human body 20 can be pulled out by reversing the direction in which the traveling waves of ultrasonic vibrations travel. Such an operation can also be performed using the hand switch 19 of the needle holder 10.

As explained above, according to the ultrasonic suturing device shown in this embodiment, the guide of the needle holder 10 that holds the suture needle l]3.
Since a piezoelectric element and vibrators 15 and 16 that generate ultrasonic vibrations are provided in the guide 14, the traveling waves generated by the ultrasonic vibrations automatically move the suture needle 1 held in the guides 13 and 14. You can send it to by this,
It is possible to easily perform suturing using the suture needle j, and the suturing work can be performed smoothly and reliably.

The needle holder 10 of this embodiment has a configuration in which the suture needle 1 is held between the needle holders 11 and 12 from both the left and right sides, but the present invention is not limited to this. It is also possible to have a structure in which the parts are held by being sandwiched from above and below.

Also, in the explanation so far, the needle holders 11 and 12 of the needle holder 10 are
Ultrasonic transducers were placed on both sides of the
It may be placed only on one side.

[Effects of the Invention] As explained in detail above, according to the present invention, the suture needle held by the holding means can be automatically fed by the traveling wave generated by ultrasonic vibration, so that the suture needle can be moved. The effect is that scoop stitching can be performed without screwing, and suturing with a suture needle can be easily performed.

[Brief explanation of the drawing]

FIGS. 1(A) to 4 are diagrams showing one embodiment of the present invention, and FIGS. 1(A) to 1(C) are a developed view of the needle guide device according to the present invention, and FIG. Figure 2 is a perspective view showing the arrangement of ultrasonic transducers, Figure 3 is a diagram showing the needle holder connected to a high-frequency power source, Figure 4 is a view of the suture needle inserted into the human body, and Figure 5 is a diagram showing the suture needle inserted into the human body. The figure shown in FIG. 6 is a diagram showing a conventional needle holder. 1... Suture needle, 10... Needle holder (holding means), 15, 16... Ultrasonic transducer (element).

Claims (2)

[Claims] (1) An ultrasonic suturing device characterized in that a holding means for holding a suturing needle is provided with an element that generates ultrasonic vibrations. (2) A suture needle, characterized in that it is fed by the holding means according to claim 1.