JPH10314180A - Bipolar pincette - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently treat an affected part by providing needle-like projections to be electrodes at the tips of a pair of inserting and holding pieces and stinging the projections into a skin so as to allow a current directly to the affected part inside of the skin. SOLUTION: Plural needle-like projections 3 to be the electrodes are fixed to the tip part opposed faces of a pair of metallic inserting and holding pieces 2 and 2a connecting an electric cable terminal 1, and the projections 3 are arranged in an alternately projecting positional relation to avoid them at the pieces 2 and 2a from being overlapped. The whole faces of the pieces 2 and 2a are insulate-coated, the base parts of the projections 3 are made insulated parts and the insulated parts are provided with thickness which can sting into a skin with the tip exposed parts of the needle-like projections 3 to be the electrodes. At the time of pinching the surrounding of the affected part with the tips of the pieces 2 and 2a, the projections 3 sting the skin to the base parts, the skin is brought to contact with the insulated parts and the exposed parts to be the electrode are not brought into contact. Then, at the time of making a current flow, the current is directly applied to the affected part only from the tip electrodes of the projections 3 reaching the inside of the skin and the current is never applied to the skin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to bipolar tweezers used for hemostatic treatment of hemorrhoids and the like.

[0002]

2. Description of the Related Art Conventionally, bipolar tweezers have been used for hemostatic treatment of hemorrhoids and the like. Bipolar tweezers are provided with electrodes at the tips of a pair of holding pieces, and a high-frequency current is applied to the affected part from the electrodes to burn and treat the affected part. By the way, in the conventional bipolar tweezers, the tip of the holding piece having the same form as the normal tweezers is used as an electrode.

[0003] In hemostatic treatment of hemorrhoids, the site where electric current should flow is inside the epidermis. Since the epidermis is healthy, it is not necessary to apply an electric current to the epidermis. Rather, applying an electric current to the epidermis may damage the epidermis and cause bleeding. However, in the conventional bipolar tweezers, since the electrode portion at the tip is flat, the electrode only contacts the epidermis,
Electric current flows through the epidermis to the affected area inside the epidermis. For this reason, there has been a problem that a current cannot be passed directly to the affected area, and that a current flows to the epidermis is inevitable.

[0004]

SUMMARY OF THE INVENTION
The objective is to allow treatment to be performed efficiently by passing a direct current through the affected area inside the epidermis, and secondly, to allow treatment without passing current to the epidermis. is there.

[0005]

The bipolar tweezers according to the present invention is configured such that a needle-like projection serving as an electrode is provided at the tip of a pair of holding pieces, and the projection is pierced into the skin. . It is preferable that the base of the needle-like projection is an insulating portion, and the insulating portion is capable of piercing the skin (Claim 2), and the insulating portion preferably has a length equal to the thickness of the epidermis ( Claims). The number and size of the needle-shaped projections are not particularly limited as long as they can pierce the skin.

[0006]

Since the electrode at the tip of the holding piece is a needle-like projection, when the affected part is sandwiched by the bipolar tweezers, the needle-like projection as the electrode pierces the skin. When a high-frequency current is applied in this state, the current is applied directly to the affected area (inside the epidermis). In addition, if an insulating part is provided at the base of the needle-like projection and this insulating part is also pierced by the skin, the part of the epidermis to which current should not be applied is prevented from being applied by the insulating part, and the current is applied only to the affected part. Flows. Therefore, the conventional problems are solved.

[0007]

Referring to the drawings, a plurality of needle-like projections 3 serving as electrodes are attached to opposing surfaces of a pair of metal holding pieces 2 and 2a to which electric wire terminals 1 are connected. The needle-like projections 3 have a positional relationship in which the holding pieces 2 and the holding pieces 2a alternately protrude so as not to overlap with each other. The entire surface of the holding pieces 2 and 2a is coated with insulation. The base of the needle-like projection 3 is an insulating part 4, and the insulating part 4 is also thick enough to pierce the skin together with the exposed end of the needle-like protrusion serving as the electrode 5 (for example, about 1 mm in diameter). . The length of the needle-like projection 3 is set to about 3 mm. The needle-like projection 3 is preferably made of a material to which the tissue of the affected part is unlikely to adhere when pierced, and is preferably a material mainly composed of silver (for example, an alloy of 70% silver and 30% titanium).

FIG. 6 shows a structure in which a pair of holding pieces 2, 2a are formed like scissors, and the structure of an electrode portion is the same as that described above. Reference numeral 6 in the figure denotes a high-frequency power supply.

According to this embodiment, only the tip of the needle-like projection 3 is exposed and functions as the electrode 5. Since the insulating portion 4 at the base of the needle-like projection 3 is also pierced into the skin, when the vicinity of the affected part is pinched by the tips of the holding pieces 2 and 2a,
Needle-like projections penetrate skin to the base. And the insulating part 4
Is set to a length (about 1 mm) corresponding to the skin 7, the skin 7 contacts the insulating portion 4, and the exposed portion serving as the electrode 5 does not contact. Therefore, when an electric current is applied, the voltage is applied directly to the affected part only from the electrode 5 at the tip of the needle-like projection 3 reaching the inside of the epidermis 7, and is not applied to the epidermis 7.

In the present invention, by applying the base of the needle-like projection to the insulating portion over the length corresponding to the epidermis, application to the epidermis can be avoided. However, in order to solve the first problem of the present invention, that is, directly apply to the affected area,
No insulation is required. Even if the needle-shaped projection is not provided with an insulating portion, the amount of current flowing to the skin is remarkably reduced as compared with the conventional one in which the tip of the holding piece that becomes an electrode is in close contact with the skin by surface contact.

An insulating portion 4 provided at the base of the needle-like projection
Is preferably a length corresponding to the epidermis, but may be shorter.
Discoloration of the epidermis can be suppressed if the base of the needle-like projection is slightly insulated.

[0012]

According to the present invention, the inner surface of the distal end portion of the holding piece is insulated, and a needle-like projection is provided to serve as an electrode, so that an electric current flows directly to the affected part inside the epidermis. be able to. Therefore, application to the epidermis can be reduced as much as possible, and damage to the epidermis can be prevented. In addition, by providing an insulating portion at the base of the needle-like projection, contact between the electrode and the skin can be completely prevented, so that application to the skin can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of the same electrode part.

FIG. 3 is an enlarged view showing an aspect of a projection.

FIG. 4 is an enlarged view showing another embodiment.

FIG. 5 is a perspective view of a scissor-shaped example.

FIG. 6 is an enlarged sectional view of a use state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Terminal 2 Nipping piece 2a Nipping piece 3 Needle-like projection 4 Insulation part 5 Electrode 7 Skin

Claims (3)

[Claims] 1. Bipolar tweezers in which needle-like projections serving as electrodes are provided at the tips of a pair of sandwiching pieces, and the projections pierce the skin. 2. The bipolar pin of claim 1, wherein the base of the needle-like projection is an insulating portion, and the insulating portion is capable of piercing the skin. 3. The bipolar tweezers according to claim 3, wherein the insulating portion has a length equal to the thickness of the skin.