JPH10192288A - Method and device for suture for operation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an operator and an assistant from a prick accident by erroneously touching the needle point, by suturing organ tissue during transmitting ultrasonic vibration to a threaded suture needle via a needle holder. SOLUTION: Since a metal forceps open by elasticity of itself when a grip 15 of the device main body is gripped by a hand and a trigger 12 is drawn by a finger so as to link to a pressure releasing tube 13 to back a pressure tube, as the power to draw a trigger 12 is loosened holding the tail part of the suture needle by a suture needle holding part 6, the suture needle comes into a firmly held condition. When a foot switch for starting from a high frequency current generator is pressed, high frequency voltage is applied on an ultrasonic vibrator 1 of the needle holder main body 2, and the generated ultrasonic vibration is transmitted from a suture needle holding bar 5 to the suture needle via a suture needle holding part 6. A surgeon holds the needle holder by hand and pricks target organ tissue by the suture needle, and, after that, the foot switch is released to knot the suture thread.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION When performing a surgical operation, it is necessary to sew various organ tissues with a needle and a thread. The present invention relates to a suturing method and an apparatus therefor.

[0002]

2. Description of the Related Art When performing a surgical operation, it is necessary to sew various organ tissues with a needle and a thread, and the cross-section is circular in shape like a curved sewing needle for ordinary sewing. The suturing operation is performed using a suture needle that is previously attached to the tail of the suturing needle so as to be detachable.

[0003] An operator grasps the suture needle with the grasping part of the needle holder, operates the needle holder, pierces the tissue with the suture needle, penetrates the suture, and then removes the suture. The suturing operation is completed by manually ligating, cutting the remaining thread near the ligated portion with scissors or the like, and discarding unnecessary sutures and suturing needles.

[0004] The needle holder used in the present invention refers to a device or an apparatus that the surgeon operates with his / her fingertip to indirectly grip the suture needle.

There are several types of suturing needles, such as round needles whose diameter becomes smaller as they approach the tip, knife-shaped square needles with sharp tips, and the properties and suturing of the target organ tissue. Currently, they are properly used depending on the purpose.

[0006] All suture needles are metal needles that are usually machined with very sharp tips to allow the surgeon to penetrate the tissue with little force and not to injure the tissue more than necessary. .

[0007]

SUMMARY OF THE INVENTION Due to such properties,
During the operation, the surgeon or caretaker accidentally contacts this needle point,
Needlestick accidents that hurt themselves are frequent.

[0008] In this case, if the patient undergoing surgery is a carrier of bacteria or viruses transmitted through the blood,
There is a high risk that doctors and caregivers will be infected by the disease via a small amount of blood attached to the needle tip.

[0009] Therefore, surgery is proceeding with care so as not to carelessly contact a medical worker with the needle tip. However, at present, infection accidents are not reduced.

The present invention has been made in view of such a situation.

[0011]

For example, even if a metal rod having a blunt tip and having a diameter of about 1 mm is prepared and an organ tissue is compressed with this, it does not penetrate the tissue with a normal force at the time of suturing operation.

Next, the opposite side of the tip of the metal rod is attached to the ultrasonic vibration generating section of an ultrasonic vibration knife device which has been known for a long time, and the tissue is gently pressed while transmitting ultrasonic vibration to the metal rod. The tissue in contact with the tip of the metal rod is destroyed, and the metal rod easily penetrates the tissue.

The present invention was conceived based on the existence of a known ultrasonic vibrating scalpel apparatus. The present invention uses an ultrasonic vibrator for generating ultrasonic vibration, and applies an external high-frequency voltage to the ultrasonic vibrator to generate ultrasonic waves. The mechanical energy of the vibration is transmitted to the suture needle.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the suturing method according to the present invention, on which the present invention will be explained.

In the needle holder device shown in the cross-sectional view of FIG. 1, an ultrasonic vibrating section 1 containing an ultrasonic vibrator is held by a cushioning material 3 made of rubber or the like so that vibration is hardly transmitted to a main body 2 of the device. A suture needle gripping bar 5 is connected to a threaded recess provided at the front thereof, and an electric cord 4 from a high-frequency current generator is connected to the rear thereof.

The suturing needle gripping bar 5 is, as shown in FIG.
It has a suture needle grasping part 6 with a groove for slip prevention, a metal forceps 7 opened in a pine needle shape is mounted on the front, and a screw 8 for connecting to the ultrasonic vibration part 1 is cut on the rear. It is an integral metal rod.

On the outside of the suturing needle gripping bar 5, a compression member having a pressing portion 9 at the distal end is used to press the rear end of the metal forceps 7 opened in a pine needle shape from the rear to appropriately close the forceps portion. The tube 10 is inserted, and its rear end is always strongly pressed forward by a strong spring 11 installed inside the main body.

Therefore, as shown in the cross-sectional view of FIG. 3 before the start of use, the pair of suture needles is gripped by the pressing force of the strong spring 11, which is much stronger than the elasticity of the metal forceps 7 which is to be opened in a pine needle shape. The part 6 is in a closed state.

Further, since the compression release cylinder 13 with the trigger 12 mounted thereon is always pressed forward by the spring 14, the compression release cylinder 13 as shown in FIG. Is in a non-contact state with the compression unit 10.

Prior to use of the present apparatus, if the user grips the grip 15 of the apparatus body with his hand and pulls the trigger 12 forward with his finger, the compression cylinder 10 retreats backward in conjunction with the compression release cylinder 13, so that the metal forceps 7. 1 is opened by its own elasticity, and the state shown in FIG. 1 is obtained. When the force for pulling the trigger 12 is relaxed while the tail of the suture needle is grasped by the suture needle grasping part 6, the apparatus main body is brought into the state of FIG. Returning, the suture needle is firmly grasped, and the suturing operation is started in this state.

As shown in FIG. 4, the high-frequency current generator 1
When the foot switch 17 for activation from the step 6 is pressed, a high-frequency voltage is applied to the ultrasonic vibrating section 1 of the needle holder device main body 2, and the generated ultrasonic vibration is transmitted from the suture needle gripping rod 5 to the pair of suture needle grips 6. The surgeon pierces the target organ tissue with the suture needle while holding the needle holder device by hand, releases the foot switch, and ligates the suture using the conventional method shown above. Is performed, the suturing is completed.

As shown in FIG. 5, the suture 1 used here
The shape of the distal end of the metal suturing needle 19 to which the wire 8 is attached is not particularly limited, and may be a hemispherical shape, a shape obtained by cutting a cone, or a shape obtained by cutting a wire as it is.

Conventional suturing needles are generally made of metal, but the suturing needle used in the present method does not need to be sharpened at the tip. For example, a plastic suture needle may be used,
The shape of the tip is not particularly limited as illustrated in FIG.

Further, when a liquid plastic or the like is infiltrated into one end of the suture without using any of the suturing needles and then is hardened, this portion becomes a property to transmit ultrasonic vibration, and the needle holder Since the suturing operation can be performed by the present device by grasping with the, the suturing needle can be used in place of the suturing needle.

In the embodiment, the ultrasonic vibrating part for converting electric energy into ultrasonic vibration is installed in the main body of the needle holder device. However, if the ultrasonic vibration is transmitted to the suture needle holding part, the ultrasonic vibrating part may be used. May be installed at any part of the needle holder device.

The ultrasonic vibrating section does not necessarily have to be included in the needle holder main body. If ultrasonic vibration is transmitted to the suture needle, the ultrasonic vibrating section is detachably attached to the needle holder. There is no problem with the structure.

Although the present device has such a structure that it can be inserted through a trocar inserted into a body cavity so as to be used for arthroscopic surgery, it has a shape that has been used for general ordinary surgery since ancient times. There is no problem even if the ultrasonic vibrating part is attached to the needle device.

Although the start switch for starting the high-frequency current generator is a foot switch in the embodiment, the switch may be directly mounted on the needle holder.

[0029]

The present invention has the configuration described above,
When the ultrasonic vibration section is energized and the organ tissue is pressed while applying ultrasonic vibration to the suture needle, the tissue part in contact with the suture needle is instantaneously destroyed by the vibration energy, so even if the tip of the suture needle is not sharp, Penetrates the tissue with very little pressure.

Therefore, even when the suture needle used in the present method is not sharp in shape, only when ultrasonic vibration is applied,
Since a function as a suturing needle is generated, it is not necessary to use a conventional dangerous suturing needle having a sharp shape, and a safe suturing operation can be performed.

Since it is not necessary to sharpen the tip, materials other than metal, such as plastic, can be adopted.

In these cases, the production is much simpler than that of the conventional metal needle, and the waste can be incinerated as it is when discarded, so that the economic effect is incalculable.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an opened state of a suture needle grip of an ultrasonic needle holder.

FIG. 2 is an explanatory view of a suturing needle gripping bar.

FIG. 3 is an explanatory view showing a closed state of a suture needle grip of the ultrasonic needle holder.

FIG. 4 is an explanatory view of a surgical method.

FIG. 5 is an explanatory view of a suturing needle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ultrasonic vibration part 2 Device main body 3 Buffer material 4 Electric cord 5 Suture needle grasping bar 6 Suture needle grasping part 7 Metal forceps 8 Screw 9 Pressing part 10 Pressing cylinder 11 Strong spring 12 Trigger 13 Press release cylinder 14 Spring 15 Grip 16 High frequency Current generator 17 Foot switch for activation 18 Suture thread 19 Suture needle

Claims (3)

[Claims] 1. A surgical suturing method, comprising: suturing an organ tissue while transmitting ultrasonic vibrations to a suturing needle with a suture thread attached thereto through a needle holder. 2. A surgical suturing apparatus comprising: a needle holder for removably attaching a suture needle with a suture attached thereto; and an ultrasonic vibration generator for generating ultrasonic vibration on the suture needle. 3. The surgical suturing apparatus according to claim 2, wherein the ultrasonic vibration generator is integrally or separately attached to the needle holder.