JP3017688B2 - Surgical suture needle device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION When performing a surgical operation, it is necessary to sew various organ tissues using a needle and a thread. The present invention relates to a surgical suturing needle device used for the suturing.

[0002]

2. Description of the Related Art A suturing operation is performed by using a suture needle having a circular cross section and a suture thread previously attached to the tail of the suturing needle, which is shaped like a curved sewing needle during surgery. I have to.

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

[0004] All suture needles are usually machined with a very sharp tip so that the surgeon can penetrate the tissue with little force and do not injure the tissue more than necessary.

[0005]

According to the conventional suturing needle, the tip is so sharp that an operator or an assistant may accidentally come into contact with the needle point during the operation and puncture the needle. Is happening frequently.

[0006] In such a case, if the patient undergoing surgery is a carrier of bacteria or viruses transmitted through the blood, doctors and assistants will be informed of the illness through a small amount of blood adhering to the needle tip. High risk of infection.

[0007] Therefore, at present, surgery is being carried out while paying attention so that a medical worker does not carelessly contact the needle tip.

However, when handing a needle holder with a suturing needle from an assistant to an operator when the needle tip hits the operator's hand or when performing an operation that requires a complicated suturing operation, In some cases, the operator's fingers have to penetrate into the deep part, and the operator always comes into direct contact with the needle tip, which cannot completely prevent the above problem.

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

[0010]

For example, the tip is 1 m in diameter.
Even if a metal rod having a length of around m is prepared and pressed in the direction of the organ tissue, it does not pierce the tissue with a normal force at the time of the suturing operation.

Next, the opposite side of the tip of the metal rod is attached to the tip of an electrocautery device that has been known for a long time, and the tissue is gently pressed while passing high-frequency current. Destroyed, metal rods easily penetrate tissue.

The present invention was conceived based on the existence of a known electrocautery device, and provided an electrically insulating layer on a surface other than a tip portion mainly composed of a needle and a tail portion connected with a suture,
The main body of the needle is electrically connected to a power source through a needle holder that holds the tail.

[0013]

1 shows an embodiment of a surgical suture needle device according to the present invention. FIG. 1 is a front view of a suture needle to which a suture is attached.
2 is a partially enlarged cross-sectional view of FIG. 1, FIG. 3 is a schematic explanatory view of a used state, and FIG. 4 is a front view of a needle holder.

A is a suturing needle. The suturing needle A has a circular cross section similar to a normal sewing needle, and has a tapered shape having a gradually decreasing diameter in the distal direction from an intermediate portion on the distal side to form an overall arc-shaped needle. (In general, it is made of stainless steel, but other metals may be used. In other words, any conductive material may be used.) 1 and an electrically insulating layer 2 provided on the needle main body 1.

The needle main body 1 has a distal edge 3a with a rubber glove for surgery or a rounded shape which is difficult to easily pierce a finger, and a concave portion 5 for connecting a suture S is formed at a tail end 4a. The suture S is inserted into the recess 5 so that the recess 5
The suture S is connected so that the suture S can be easily detached from the needle main body 1 as needed by crushing the outside of the needle.

The distal end side of the needle main body 1 is formed to have a circular cross section in which the diameter is gradually reduced in the distal end direction. In order to minimize the tissue destruction by reducing the contact area with the organ tissue and causing small tissue destruction by energization, the needle main body 1 pushes and spreads the tissue to facilitate the insertion operation. is there.

The electrically insulating layer 2 is made of a fluororesin by utilizing its thermoplasticity.
However, any material that has insulation and heat resistance can be used regardless of other resin, paint, rubber, etc. ,
Any means such as painting and bonding is not required.

The distal end portion 3 means a distal end portion of the needle main body 1 in which the operation of energizing the organ tissue can be performed via the distal end portion 3. Since the destruction of the organ tissue can be reduced, it can be energized. The smaller the area, the better.

The tail 4 means a portion including the recess 5 to which the suture S is connected and an adjacent portion (near) thereof. However, the inconvenience that the suture S does not easily come off after the suturing operation is considered. If permitted, only the recess 5, that is, the connection portion of the suture S may be used as a tail and may be a portion without an insulating layer.
Further, an insulating layer may be applied to the peripheral surface of the recessed portion, with only the adjacent portion having no insulating layer.

In short, the tail portion 4 is to be held by the tips of the holding pieces 6a of the needle holder 6 shown in FIG.
It means the tail end 4a of the needle main body 1 or the vicinity thereof where no insulating layer is applied to energize the needle main body 1 through the holding piece 6a (the tip 3 energizes the organ).

The needle holder 6 has a terminal portion 7 for connecting an electric cord from a power source (high-frequency current generator) 11, and the current introduced from the terminal portion 7 is passed through the needle holder main body. In the mechanism leading to the holding piece 6a, an electrical insulating layer is applied similarly to the suturing needle 1 except for the terminal portion 7 and the tip end surface of the holding piece 6a (the contact portion with the tail portion 4).

At the time of operation, similarly to the case of using an electric scalpel, one of the electric cords from the power supply is connected to the return electrode 1 placed on the patient.
2 and the other is connected to a connection terminal 7 of a needle holder 6 which grips a non-insulating portion of the tail 4 of the suture needle 1, and when the suture needle 1 is pierced into tissue for suturing, the surgeon When the user pushes the needle 1 while energizing while the power switch of the device is depressed, the suture needle 1 is easily penetrated into the tissue, and ideal perforation is performed.

Thereafter, the current is turned off by removing the foot from the energizing switch, and the normal suturing operation may be performed.

When the apparatus of the present invention is operated by using a conventional conductive needle holder, insulating surgical gloves may be used.

[0025]

The present invention has the configuration described above,
Electricity is applied only to a small area of the tip of the needle, which is in contact with the organ tissue.
The suture needle penetrates into the tissue with very little pressure while generating heat instantaneously and explosively destroyed.

At this time, since the tissue is destroyed only at the portion where the tip portion is in contact, extensive burns do not occur in the tissue around the needle, moderate tissue coagulation due to electric current is also applied, and hemostasis at the penetrating portion. Is performed at the same time, so that an ideal perforation for passing the suture is performed without bleeding from the needle hole.

Therefore, even if the tip of the suture needle is difficult to pierce, the function of the suture needle is not impaired.
It is possible to provide a safe surgical suture needle device that functions as a suture needle only during energization, and that does not accidentally pierce the other if not.

[Brief description of the drawings]

FIG. 1 is a front view of a suture needle to which a suture is attached.

FIG. 2 is a partially enlarged sectional view of FIG.

FIG. 3 is a schematic explanatory view of a use state.

FIG. 4 is a front view of the needle holder.

[Explanation of symbols]

 1 needle main body 2 electrical insulating layer 3 tip 4 tail 6 needle holder 11 power supply

Claims (1)

(57) [Claims] 1. An electric insulating layer is provided on a surface other than a tip portion of a main body of a needle and a tail portion to which a suture is connected, and the main body of the needle is electrically connected to a power source through a needle holder holding the tail portion. ,
Surgical suture needle device.