JPS6036039A - Blood vessel occuding auxiliary instrument - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an auxiliary device for vascular anastomosis of arteries and veins used during surgery.

Conventional Structure and Problems Conventionally, blood vessel anastomoses have mainly been performed using suturing techniques using a doctor's fingertips, needles, and threads without using any auxiliary instruments. Although a device for joining two blood vessels in the long sleeve direction is known as a blood vessel suturing device, it is not suitable for complex blood vessel anastomosis in which a joining hole is provided in the side wall of the blood vessel and a bypass is formed from this.

In such cases, manual intervention is necessary, but if no auxiliary equipment is used, there is a risk of damaging the white label or edge of the blood vessel with fingers or needle points, and the opening of the edge of the blood vessel may not be sufficient. Attaching the threads is laborious and requires a great deal of time even for an experienced person, and has the disadvantage of consuming most of the limited surgical time.

Purpose of the Invention The present invention involves shaping a blood vessel edge into a large open state when anastomosing a blood vessel with a diameter of about 2 to 6 mm with another blood vessel.
The present invention aims to provide an auxiliary device for blood vessel anastomosis that can easily and quickly attach up to 20 to 40 suture threads.

Structure of the Invention In order to achieve the two objects, the present invention has a tip introduction section that can be inserted into the lumen of a blood vessel, a body section that continues to this introduction section, and a long sleeve direction that allows a needle with a thread to pass through the body section. This auxiliary device for blood vessel anastomosis consists of a threading space and a grip provided at the rear end of the threading space.

As described above, in the present invention, since the introduction part is provided at the distal end, the introduction part can be inserted from the edge of the blood vessel and the blood vessel can be shaped into a substantially large opening at the body. Since the threading space forms a space in the long sleeve direction, the curved needle passes through the edge and passes through the threading space, thereby attaching the thread to the shaped edge. Normally, 20 to 40 wooden threads are hung in the anastomosis of a blood vessel, but by inserting an introduction part into the end edge, it is possible to protect the inner wall of the blood vessel and make it larger, creating a space for threading. In conjunction with this, the work of threading can now be done easily, quickly and reliably. Due to the presence of a space for threading, thread can be threaded smoothly.
It can be easily used even by a person who is not as skilled as the conventional example, and can be stably handled by pinching the gripping part with the fingertips.

Description of examples Examples will be described below with reference to the drawings.

Fig. 1 shows a perspective view of the auxiliary device for vascular anastomosis of the present invention. It has a physical form.

Reference numeral 2 denotes a body part following the introduction part, and 3 a space for threading, which is a cutout in the direction of the long sleeve.

Reference numeral 4 denotes a grip portion, which is bent approximately 90 degrees from the rear end of the body portion 2 to form a flat plate shape. The grip part 4 is formed to have a length that allows it to be held between two fingertips and stably support the introduction part 1 and the body part 2. Figure 2 is a perspective view showing how this device is used to thread a thread. 5 is a blood vessel taken out from an artery or vein, 6 is a needle, the whole is curved in a round shape, and the tail is stopped at the rear. Attach the thread 7 to the section. 8 indicates a needle holder holding a needle, and 9 indicates a fingertip.

When the tip introduction part 1 of the auxiliary device of the present invention is pushed into the blood vessel 5, the tip has a tapered bullet shape and is rounded, so it is easy to insert, and after insertion, it is held in a cylindrical shape by the body 2. It has become so. When the auxiliary instrument of the present invention inserted into the blood vessel is grasped with the fingertips of one arm using the grip section 4 until the tip of the threading space enters, the threading becomes easy. After attaching the thread 7, the needle 6 is held between the needle holders 8 and the other arm is inserted into the edge of the blood vessel 5, and the curved needle is pulled out through the thread threading space 3. The thread is attached to the edge. After attaching a thread to a part of the edge, by rotating it, the thread hanging space 3 moves.

The next edge can be threaded, and this action is repeated to attach multiple threads.

FIG. 3 is a perspective view showing a state in which a large number of threads 7 can be accessed.

FIG. 4 is a perspective view of an auxiliary device shown as another embodiment;
I/X is shaped like a cannonball in the introduction section. 24 The trunk section 10 is a plurality of rod-shaped projections erected from the rear end periphery of the trunk, and the space formed between these rod-shaped projections 10 is used as the thread hooking space 1.
It was set to 1. 12 is a grip part.

In the case of this embodiment, since the number of thread hooking spaces 11 is equal to the number of rod-shaped protrusions that are set up, it is possible to pick up the thread at the edge of the entire circumference without rotating the auxiliary tool too much. It is possible.

Effects of the Invention Since the device of the present invention has the above-described configuration, by inserting it into the edge of the extracted blood vessel, the edge can be shaped.
You can hold the blood vessel together by pinching the grip with one fingertip. Therefore, by sandwiching the button with the needle holder and using the space for threading,
It became possible to continue threading work easily.

Conventionally, when holding the blood vessel itself with your fingertips and threading the thread, there were drawbacks such as damaging the inner wall of the blood vessel, but by using the device of the present invention, such There were no obstructions, and the blood vessels were shaped into a cylindrical shape, making anastomosis surgery very convenient. There are 20 to 40 threads that can be hung on the edge of a blood vessel, but by using the device of the present invention, the needle can be operated by simply rotating it little by little, making full use of the space for threading. Conventionally, this type of surgery takes about 20 to 30 minutes due to the anastomosis going up the thread, but this has the effect of cutting the time by about half. Furthermore, there are 2 types of blood vessels.
There are 6+sm types, and opening surgery can be performed accordingly for each type, providing great convenience, safety, and stability during surgery.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the auxiliary device for blood vessel anastomosis of the present invention, Fig. 2 is a perspective view of the device in use, Fig. 3 is a perspective view showing the state of the thread attached to the peripheral edge of the blood vessel, FIG. 4 is a perspective view showing another embodiment. l...Introduction part 2...Body part 3...Space for threading 4...Gripping part 10...Bar-shaped protrusion 11...Space for threading Agent Patent attorney: Mr. Oshima Figure 2

Claims (3)

[Claims] (1) A tip introduction part that can be inserted into the blood vessel lumen, a body part following this introduction part, a space for threading in the long sleeve direction through which a button with a thread attached continues from this 1g/1 part, and this This auxiliary device for blood vessel anastomosis consists of a threading space and a gripping part provided at the rear end of the threading space. (2) The auxiliary device for blood vessel anastomosis according to claim 1, which uses a notch provided in the long sleeve direction of the tubular body as the threading space. (3) The auxiliary device for blood vessel anastomosis according to claim 1, wherein a space formed by erecting a plurality of rod-shaped projections from the rear end periphery of the trunk is used as the threading space.