JPH04244172A - Analgenic method and apparatus with low frequency therapeutic apparatus - Google Patents

Abstract

PURPOSE:To reduce pains in the insertion of an injection needle by a low, frequency current stimulation less uncomfortable than pains in the insertion of the injection needle by paralyzing a part to be injected with the flowing of a low frequency current through an electrode by performing an injection or a sampling of blood with the injection needle inserted through a clearance between electrodes. CONSTITUTION:With a clearance 25 given, top sides of triangular pyramids of right and left electrode pasted parts 24L and 24R are arranged as opposed to each other and an oval through hole 26 is cut into triangular pyramid-shaped top surfaces of the right and left electrode pasted parts 24L and 24R so that an injection needle 6 of an injector 5 is inserted through the through hole 26. Then, for example, a box body 7 is held by a left hand to keep electrodes 3 and 3 in contact with a part such as belly as opposed thereto and various adjusting knobs 2a and 2b of a low frequency therapeutic device 1 are adjusted with the right hand to cause a paralysis at the position of the through hole 26 by running a specified low frequency current. The injection needle 6 is put through the through hole 26 to perform an infection. Thus, the injection is accomplished with little pains inflicted in the insertion of the injection needle 6.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention uses a low-frequency therapy device to numb the area where the prescribed injection is to be performed when injecting insulin, etc., so that the person does not feel pain when inserting the injection needle. The present invention relates to an analgesic method using a therapeutic device and an analgesic device.

0002

[Prior Art] In the medical field, various methods have been used as analgesic methods and analgesic devices to alleviate the pain that occurs when a needle tip is inserted into a biological site when injecting a syringe into a predetermined biological site or drawing blood. and devices have been proposed.

[0003] Conventional general analgesic methods include: A. Making the needle of the syringe as thin as possible. B. Improve the sharpness of the tip of the injection needle. C. Perform anesthesia. D. Distract by listening to music, etc. E. Insert the needle into the body's least painful area. F. Utilize jet stream. etc. are known.

0004

[Problems to be Solved by the Invention] Regarding A of the above-mentioned conventional analgesic methods and analgesic devices, for example, a syringe needle for insulin has a minimum gauge size of 28G, which reduces pain to some extent. However, in the case of insulin injections performed by amateurs, if the needle is made thinner, problems such as the needle breaking inside the body occur.

Regarding B above, although needle tip coating technology has developed and reached a certain level, it is not possible to completely eliminate the pain when inserting the needle tip.

[0006] Regarding C above, there are problems such as sensitization (the anesthetic effect disappears if anesthesia is applied for a long time) in the body due to the use of drugs, and side effects.

[0007] Regarding D, it is not common in hospitals and the like because silence is required, and its effects are psychological and are not sufficient.

[0008] Regarding the above E, it is possible to select and perform injections in areas where there is less pain, such as the back or lower back, but there is a problem in that it is difficult to inject when the patient himself/herself performs the injections, such as with insulin injections.

Regarding the above F, syringes such as jet injectors are commercially available, but there are problems in that they are not completely painless and the cost of one injection is too high.

[0010] The present invention is intended to solve the above-mentioned problems, and its purpose is to reduce the pain by using low-frequency stimulation, which is less unpleasant than the pain caused when inserting a syringe needle. The present invention provides an analgesic method and analgesic device using a low-frequency treatment device.

[0011]

[Means for Solving the Problems] An example of the analgesic method using a low-frequency treatment device of the present invention is as shown in FIGS. electrodes 3 are arranged with a predetermined gap between them, and a low frequency current is applied to the site 1 through the electrodes 3 by the low frequency treatment device 2 to numb the site to be injected, and the area between the electrodes 3 and 3 is Gap 4
This is an analgesic method using a low frequency therapeutic device, which is characterized by inserting an injection needle 6 into the site 1 and injecting blood into the site 1 or collecting blood from the site 1.

[0012] The analgesic device using the low frequency treatment device of the present invention includes:
An example of this is shown in FIGS. 7 and 8, in which a low frequency treatment device 1 and at least one pair of electrodes 3 are integrated into a housing 7, and a gap 25 or a transparent material is formed between the pair of electrodes 3. This is an analgesic device of a low frequency therapeutic device characterized in that a hole 26 is formed and the needle 6 of the syringe 5 is inserted through the gap 25 or the through hole 26.

[0013]

[Function] According to the analgesic method and analgesic device using the low-frequency treatment device of the present invention, the pain when injecting a hypodermic needle is reduced by the low-frequency current stimulation, which is less unpleasant than the pain caused when a hypodermic needle is inserted into a predetermined part of a living body. You will get something reduced.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The analgesic method and analgesic device using the low frequency therapeutic device of the present invention will be described in detail below with reference to FIGS. 1 to 13.

First, the analgesic method of the present invention will be explained with reference to FIGS. 1 and 2.

In FIG. 1, reference numeral 1 indicates a part of a living body where injection or blood sampling is performed, and at least one pair of electrodes 3.3 of a low-frequency treatment device 2 is attached to this part 1 with a predetermined gap 4 provided therebetween.

Next, the frequency adjustment knob 2a of the low frequency treatment device 2
, the intensity adjustment knob 2b, the time knob 2c, etc., are adjusted to the optimum value while looking at the display device 2d, etc.

[0018] The frequency by the frequency adjustment knob 2a is 50H.
It is possible to select a pulse width of about 80 microseconds at about z. Further, the strength knob 2b is rotated to gradually increase the low frequency current applied to the site 1 until the needle recipient feels a certain degree of numbness.

Next, as shown in the enlarged view of the pads 3.3 in FIG. The injection needle 6 of the syringe 5 is inserted into the approximate center of the through hole 8 of the site 1 to perform injection or blood collection.

[0020] When the injection is performed using such an analgesic method, the through hole 8
Since the internal region 1 is numbed by the low-frequency current, the injection can be performed with little or no pain when the needle is inserted.

FIG. 3 shows a low frequency treatment device 2 used in the present invention.
FIG. 4 shows an example of a stimulus waveform.

In the system diagram of FIG. 3, 9 is a power supply section such as a battery, 1
Reference numeral 0 denotes a stimulation waveform generation section, which is composed of a fundamental wave generator 11, a modulated wave generator 12, and a modulator 13. Various stimulation pulses as shown in FIG. 4 can be extracted from the fundamental wave generator 11.

FIG. 4A is a square wave, FIG. 4B is a pulse wave, FIG.
C shows a sawtooth wave, FIG. 4C shows an exponential wave, and other types of waves include spike waves and modulated intermittent waves.

In FIG. 3, the output of the fundamental wave generator 11 and the output of the modulated wave generator 12 are supplied to a modulator 13 to obtain a modulated wave, and for example, a modulated intermittent wave is supplied to an output circuit consisting of an amplifier 14. and supplied to electrode 3.3.

The output of the amplifier 14 described above is controlled by a current limiting circuit that prevents the peak value of the low frequency current flowing through the skin 17 from exceeding a safe limit, and a current limiting circuit that prevents the energization rate (pulse width) from exceeding a predetermined limit (2% of normal current). ) The output is controlled by a safety circuit 15 consisting of a energization rate limiting circuit, etc., which maintains the energization rate so as not to exceed .

Skin 1 over internal tissue 18 of site 1 of needle recipient
A pair of electrodes 3.3 made of conductive gel stuck to the pad 7 are arranged on a pad 16 made of rubber or the like with a predetermined gap 6,
A through hole 19 is bored in the pad 16 so that the injection needle 6 of the syringe 5 can be inserted therein.

FIG. 5 shows an example of the structure of the pad and electrode of the present invention, in which an oval-shaped through hole 19 is bored at approximately the center of a flexible pad formed into an approximately rectangular shape. Approximately square electrodes 3.3 are provided at both ends of the electrode 19.

Electrode hole 22 is provided in electrode 3.3 and pad 16.
A button terminal 21 having an E-shaped cross section, which is attached to the tip of the output lead 20 of the amplifier 14, is fitted into the electrode hole 22, and is slid and fixed along the slit 22a provided in the electrode hole 22. .

Although the pad shown in FIG. 5 is a disposable pad in which the button terminal 21 is removed when the electrode surface becomes dirty and the pad 16 and electrode 3 are discarded, it may be configured as shown in FIGS. 6A and B. FIG. 6A is a plan view of the pad, and FIG. 6B is a sectional view taken along line DD in FIG. 6A.

The pads 16 shown in FIGS. 6A and 6B are made of a soft material such as rubber. The electrode 3.3 is not made of conductive gel, but is made of conductive rubber, for example, and is attached to the lead 2 at a predetermined position.
Connected to 0. By using conductive rubber as the electrode 3.3, stimulation adjustment, that is, the intensity adjustment knob 2b shown in FIG. 1 can be omitted.

That is, if the upper part of the conductive rubber electrode 3.3 is pressed strongly from the surface of the pad 16, the strength will be increased, and if pressed weakly, the strength will be decreased.

[0032] With such a pad structure, the predetermined portion 1
For example, the strength can be adjusted by simply pressing the upper surface of the electrode 3.3 with your dominant finger, regardless of whether you are left-handed or right-handed.

In each of the above-described embodiments, a pair of electrodes 3.3 were arranged opposite to the through hole 19 formed in the pad 16, but two pairs of electrodes, a total of four electrodes, were arranged so as to surround the through hole 19. or place
It is clear that various modifications can be made, such as dividing the disk-shaped electrode having the through hole 19 in the center into two equal parts or four equal parts.

In each of the above-described embodiments, the low-frequency treatment device 1 and the pad including the electrodes are constructed separately, but various structures of analgesic devices in which these are integrated will be described with reference to FIGS. 7 to 12.

FIG. 7 shows a perspective view from the top of an analgesic device showing one embodiment of the present invention, and FIG. 8 shows a perspective view from the back.

In FIGS. 7 and 8, a substantially rectangular parallelepiped housing 7 made of synthetic resin or the like is prepared, and each circuit of the low frequency treatment device 1 explained in FIG. In addition to the frequency adjustment knob 2a and the intensity (amplitude) adjustment knob 2b.
A variable resistor etc. that can be adjusted with is installed.

Furthermore, as shown in FIG. 8, the battery cover 23 provided on the back surface of the housing 7 is opened and a power source battery etc. can be inserted therein.

A pair of triangular pyramid-shaped left and right electrode attachment parts 24L and 24R are swingably extended on the front plate 7F of the housing 7.

The two surfaces of the triangular pyramid of the left and right electrode bonding portions 24L and 24R extend on the same plane as the top surface and the left and right side surfaces of the housing 1, and the other one of the left and right electrode bonding portions 24L and 24R The surface has a substantially V-shaped cross section, and an electrode 3.3 is adhered to the lower surface thereof. The top sides of the triangular pyramids of the left and right electrode bonding parts 24L and 24R are arranged to face each other with a predetermined gap 25 between them.

Oval shaped through holes 26 are bored in the triangular pyramidal upper surfaces of the left and right electrode attachment parts 24L and 24R.
The needle 6 of the syringe 5 is inserted through the syringe.

In the analgesic device having the above structure, the housing 7
For example, hold it in your left hand, place the electrode 3.3 against a region such as your abdomen, and adjust the various adjustment knobs 2a and 2b of the low-frequency treatment device 1 with your right hand to apply a predetermined low-frequency current to the region 1. If the position of the through hole 26 is numbed and the injection needle 6 is inserted into the site 1 through this hole and the injection is performed, most people can perform the injection without feeling any pain when the injection needle 6 is inserted. It can be done.

When pressing the electrodes 3.3 of the left and right electrode attachment parts 24L and 24R on the above-mentioned part 1, if you hold the left and right electrode attachment parts 24L and 24R and press them against the part, the electrodes will have a V-shaped cross section. The application surface is pressed in the direction of arrow A-A, and the angle of the V-shape becomes more acute, allowing good contact with the site.

9 and 10 show an analgesic device according to another embodiment of the present invention. FIG. 9 is a rear perspective view, and FIG. 10 is a front perspective view. It is made of synthetic resin or the like, and inside the housing 7, a round flat battery and an IC chip 28 of a low frequency treatment device are arranged.

The battery voltage of the round battery 27 is boosted to about 6V by a circuit within the chip and used. A through hole 26 through which the injection needle 6 is inserted is bored in the upper surface and the back plate approximately at the center of the housing 7.

A pair of electrodes 3.3 are arranged opposite to the through hole 26.
Paste. The electrode 3.3 is made of the conductive rubber described in FIG. 6, and is constructed so that the strength and frequency can be adjusted by pressing force, and no adjustment knob or the like is provided on the outer surface of the housing 7.

Furthermore, as shown in FIG. 10, a protrusion 30 is surrounded around the through hole 26 in the top plate of the casing 7, and an uneven part 29 is formed on the surface of the pressing part to make it rough, thereby making it easier for blind people etc. The structure is easy to operate.

[0047] In the analgesic device having the above structure, FIG.
The electrode 3.3 is brought into contact with a predetermined region of the needle recipient in the state shown in FIG. 2, and the frequency and intensity are adjusted to numb the region, and then the injection needle 6 is inserted through the through hole 26.

FIGS. 11 and 12 show still other embodiments of the analgesic device of the present invention. FIG. 11 shows an integrated syringe and analgesic device, and FIG. 12 shows an analgesic device in a clip type. It is composed of

In FIG. 11, 31 is a NOVOPEN.
, trademark), etc., and this syringe 31
The cylindrical housing 32 of the analgesic device has a cylindrical shape through which the injection needle 6 can be inserted, and contains a battery, an IC chip of the low-frequency treatment device, etc., and a sliding operation switch 33 controls the power on/off, frequency, and intensity. Make selections based on different slide positions. On the front surface of the cylindrical housing 33 are semicircular electrodes 34, 34.
is formed.

In the analgesic device configured as described above, the pen-shaped syringe 31
With the injection needle 6 housed inside the cylindrical housing 32,
Press the electrodes 34, 34 against the patient's site, operate the operation switch 33, turn on the low frequency treatment device and adjust various items to numb the site, and then operate the pen-shaped syringe 31. All you have to do is give an injection.

FIG. 12 shows still another embodiment of the analgesic device of the present invention, in which the casing is constructed in the form of a clip. The housing 36 has a substantially box-like configuration, and houses the battery 27 and the IC.
A chip 28 and the like are built-in, and a frequency adjustment knob 2a, an intensity adjustment knob 2b, and the like are attached outside the housing.

[0052] Left and right clip pieces 3 are removed from the left and right sides of the housing 36.
7L and 37R are extended, and electrodes 3.3 are attached to the insides of these clip pieces 37L and 37R.

The left and right clip pieces 37L and 37R are shown in FIG.
It is configured such that it is pushed out and held between the abdomen and the like, and the clipped site is injected from the direction of arrow B.

Regarding the analgesic mechanism in each of the above-mentioned embodiments, the gate control theory (
Gate Control Theory) theory has been put forward, but recently it is said that passing a low-frequency current releases endogenous morphine-like substances, which bind to opiate receptors in the central system and suppress pain. The mechanism has not been elucidated.

FIG. 13 shows the actual selection of 10 needle recipients.
This figure shows the response results when the left and right arms were selected at random and injected three times each.

FIG. 13A shows the results when the injection was performed using a 28G thin and painless syringe needle and the analgesic device and analgesic method of this example were not used. is feeling pain.

FIG. 13B shows 28G using the analgesic device of this example.
The results show the sensitivity results of injections performed under the same conditions as described above using a needle with a diameter of . In this case, it can be seen that about 70% of people do not feel pain.

That is, according to the method and device of this example, the analgesic effect is extremely remarkable, and the anti-analgesic effect can be obtained without any side effects or after-effects, so that patients, especially diabetic patients, do not need to constantly inject insulin. It is extremely useful for those who must

[0059]

Effects of the Invention According to the analgesic method and analgesic device using the low-frequency treatment device of the present invention, the pain during needle injection is reduced by low-frequency current stimulation, which is less unpleasant than the pain caused when inserting the needle.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of an analgesic method using a low frequency therapy device of the present invention.

FIG. 2 is an enlarged view of a pad portion used in the analgesic method using the low frequency treatment device of the present invention.

FIG. 3 shows a system diagram of a low-frequency treatment device used in the analgesic method using the low-frequency treatment device of the present invention.

FIG. 4 is a stimulation waveform diagram of the low frequency treatment device of the present invention.

FIG. 5 is a plan view of a pad used in the analgesic method using the low-frequency therapy device of the present invention.

FIG. 6 is a plan view and a cross-sectional view of another pad used in the analgesic method using the low-frequency therapy device of the present invention.

FIG. 7 is a top perspective view of the analgesic device using the low-frequency treatment device of the present invention.

FIG. 8 is a rear perspective view of the analgesic device using the low frequency treatment device of the present invention.

FIG. 9 is a rear perspective view showing another configuration of the analgesic device using the low frequency treatment device of the present invention.

FIG. 10 is a front perspective view showing another configuration of the analgesic device using the low frequency treatment device of the present invention.

FIG. 11 is a perspective view of an analgesic device using a low-frequency treatment device of the present invention integrated with a syringe.

FIG. 12 is a perspective view of a clip-type analgesic device using a low-frequency treatment device of the present invention.

FIG. 13 is an explanatory diagram comparing the effects of the analgesic method and device using the low frequency therapeutic device of the present invention with those of the conventional method.

[Explanation of symbols]

1 Part 2. Low frequency treatment device 3 Electrode 6. Syringe needle 16 Pad

Claims (2)

[Claims] 1. At least one pair of electrodes of a low-frequency treatment device are arranged with a predetermined gap at a site where an injection is to be performed, and a low-frequency current is applied to the site via the electrodes by the low-frequency treatment device. analgesic method using a low-frequency therapy device, characterized in that the site to be injected is paralyzed, a needle is inserted through the gap between the electrodes, and the injection is performed at the site or blood is collected from the site. . 2. A low frequency treatment device and at least one pair of electrodes are integrated into a housing, a gap or a through hole is formed between the pair of electrodes, and a needle of a syringe is inserted through the gap or through hole. An analgesic device of a low frequency therapeutic device, characterized in that it is inserted through the device.