JPS61131759A - Electric stimulation needle - 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 Industrial Application) This invention relates to an epidural electrical stimulation needle for treating diseases by stimulating electrical nerves in the human body.

(Prior Art) In recent years, percutaneous stimulation of the epidural space has been used to treat various types of headaches for which pain relief has been difficult. It places an epidural catheter using a continuous epidural needle,
A common method is to insert a stainless steel wire into the catheter and have the tip protrude for 3 to 5+ seconds to reach the epidural space and then energize the wire.

(Problems to be Solved by the Invention) However, with this conventional method, there is a high risk of the tip of the needle penetrating the dura and causing bleeding, and requires a high degree of skill to operate. This is a difficult method for doctors.

(Means for Solving the Problems) The present invention has been made by focusing on the problems of the prior art, and consists of an outer needle and an inner needle. By injecting a large amount of physiological saline, which is a good conductor, into the epidural space using an epidural electrical stimulation needle whose only part is not insulated, it is possible to effectively stimulate the visual nerve over a wide area. The present invention provides an instrument that is relatively easy to operate and allows safe treatment.

(Example) The present invention will be described in detail below based on an example. 1st
The figure is a sectional view of a stimulation needle according to the present invention, and the needle consists of an outer needle 1 and an inner needle 8. The outer needle 1 has an outer needle base 2 whose base is made of steel.
υ is a needle tube formed at a relatively obtuse angle, and the entire outer surface including the needle base has zero tear.
The υ insulation coating 4 is formed by coating, and only the slightly inclined surface of the cutting edge 3 is non-insulated. Since the insulation is to prevent current from flowing to unnecessary locations during treatment, the non-insulated portion may be more than this, up to about 5m+ from the tip. 5 is a conductor wire with a bagworm I) v pro attached to the tip, and the other end is soldered to the outer needle base 27. and can be energized. Even if the outer needle base 2 is not made of steel itself, the outer needle base 2 may be made of steel.
Of course, it may be made of plastic as long as it has a built-in means of communication. Reference numeral 8 denotes an inner needle having the same diameter as the inner diameter of the outer needle 1 and tightly fitted into the outer needle 1. A part of the inner needle base 9 is fitted into the outer needle base 2 and held therein. There is.

Although not shown, the outer and inner needles are fitted with projections and notches provided on the needle bases 9 and 2 of both the inner and outer needles, so that the inner needle does not rotate within the outer needle. There is.

A method of using the electrical stimulation needle according to the present invention when reaching epidural pressure for treatment will be explained with reference to FIG. - First, place the patient in the lateral position and infiltrate the needle insertion site with local anesthetic at the level of the nerve. Next, the electrical stimulation needle of the present invention (22 gauge, approximately 7 cm in length is suitable) is inserted through the skin, and when the needle tip hits the resistance of the ligament, the inner needle is removed and the needle is filled with physiological saline. Connect the 5rrLt syringe barrel to the outer needle, and retract the needle while pressurizing the piston. Eventually, when you reach the point where there is suddenly no resistance, the piston becomes lighter, and the saline is injected, this is the epidural pressure. Once the epidural pressure has changed, approximately IQmt of physiological saline, which is a good conductor of electricity, is injected, and then the inner wire is returned to the outer needle. After this, the lubricant Ij of the conductor of the electrical stimulation needle
Connect the cathode of a low-frequency energization device to the W loop to serve as a stimulation conductor, and pass an acupuncture anesthesia needle through the body as an indifferent electrode.
Use as an anode. The frequency of the low-frequency energization is 2 hertz, and the frequency of the energization is approximately 2 to 10 volts, which is enough to cause contraction in the muscles controlling the Chu nerve and cause discomfort to the patient. Stimulation time is 20 minutes at a time, - 1 to 3 times a week
Let's go around.

The electrical stimulation needle can also be used to treat periarthritis of the shoulder, osteoarthritis of the knee, etc., and the method of use for treating knee osteoarthritis will be described below.

First, the patient is placed in a supine position, and a pillow is placed under the affected knee joint and elevated. After disinfecting the area around the joint, use the electric stimulation needle according to the present invention (in this case, it is shorter than the upper one, 22 cm).
Insert a needle (about 3 cm in length) from above the outside of the knee joint, and when the needle tip enters the knee joint, remove the inner needle, connect the syringe barrel to the outer needle, and insert it into the joint. Remove the accumulated exudate by suctioning. Next, after injecting approximately IQmt of physiological saline, the inner needle is returned to the outer needle. After this, connect the cathode of the low-frequency energizing device to the minumic clip of the conductor of the electrical stimulation needle to serve as a stimulation conductor, and use the indifferent electrode as a lateral electrode at the height of the lower border of the tibial tuberosity on the affected side. At 2c→, insert a needle for acupuncture anesthesia into the peroneal nerve and use it as an anode.The frequency of low-frequency energization is 2 Hz, and the amount of energization is synchronized with the stimulation to the affected limb that received low-frequency stimulation. Approximately 3 to 6 volts should be applied so that a rhythmic movement is observed and the patient does not feel discomfort.The stimulation time is 10 to 20 minutes per session, and is performed 1 to 3 times per week.

(Effects of the Invention) By employing the above configuration, the present invention produces the following effects.

A. It is easier to operate than conventional treatment using a continuous epidural needle.

B. There is little risk of penetrating the dura or bleeding.

Since it has the function of a C1 syringe needle, it is possible to inject medicine when connected to a syringe barrel, and injects physiological saline, which is a good conductor, into the epidural pressure, stimulating the U nerve over a wide range and effectively. be able to.

D. From the same point of view, exudate inside the body can be removed.

E. The implantable epidural space can also be used to confirm efficacy before using the sulfur stimulator.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is an explanatory view showing how to use the electrical stimulation needle according to the present invention. 1...Outer needle, 2...
...Outer needle base. 4...Insulation coating location, 5...
...Conducting wire. 8...Inner needle, 9...
...Inner needle base. Patent Applicant: Tochigi Seiko Co., Ltd. Representative Patent Attorney Morikatsu Niigaki, fl. J. Rika Zuo; Wood Procedure Amendment (Method) % Formula % 1. Indication of Case 1982 Patent Application No. 254530 2. Invention Name of electric stimulation needle 3, Person making the amendment Relationship to the case Patent applicant Tochigi Seiko Co., Ltd. 4 Agent Kumo 170 19-2-5 Sugamo-chome, Toshima-ku, Tokyo Date of amendment order March 1985 March 6th (shipped March 28th) 6. Drawings to be amended 7. Contents of the amendment attached to the document I. Figure 2 Procedural Amendment Form! =! ! 1iF spontaneous) 0.1 1985 4
May 19th, 1982, the case is 1981 Patent Application No. 254530, 2, title of the invention is Electric Stimulation Needle, 3, person making the amendment.
Incident and 0 relationship°Patent applicant
of. 5. Correction 0 target
rear. □ Refer to Figure 2 to explain how to use the fence for treatment. In the figure, 10 is the skin, 11 is the subcutaneous tissue, 12 is the ligament, 13 is the muscle, 14 is the epidural pressure, 15 is the body, and 16 is the good body. First, with the patient in the lateral position, local anesthetic is infiltrated into the insertion site at the level of the electrical nerve. Next, the wood-grained electric stimulation needle (
A 22 gauge, length 7 is suitable) is inserted through the skin 10, and when the needle tip hits the resistance of the ligament 12, the inner needle 8 is removed and a 5 ml syringe with a saline wood finish is inserted. Connect to outer needle 1 and advance the needle while applying pressure to the binun. Eventually,
When the sudden resistance disappears, the pressure becomes lighter, and the saline reaches the point where the saline is injected, that is the epidural 14. When the epidural pressure 14 is reached, approximately 10 mt of physiological saline, which is a good electrical conductor, is injected, and the inner needle 8 is returned to the outer needle 1 again. After this, the cathode of the low frequency passing device 17 is connected to the conductor wire of the electric stimulation needle to serve as a stimulation conductor, and the needle 18 for acupuncture and anesthesia is passed through the body surface as a separator electrode to form a hill. . For low frequency energization, the frequency shall be 2 hertz, Procedural amendment (voluntary) May 9, 1985

Claims (1)

[Claims] An outer needle 1 that is implanted in a conductive needle base 2 and has an insulation treatment 4 applied to the surface except for the tip, an inner needle 8 that is tightly fitted into the outer needle 1, and the needle base of the outer needle 1. An electrical stimulation needle comprising: a conducting wire 5 connected to a conductive wire 5;