JPS59125569A - Magnetic treatng apparatus - 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 This invention relates to magnetic therapy for promoting the healing of fractured bones and other healing processes.

Previously known devices for promoting healing of bone fractures include applying a varying magnetic field to the treated body by means of a coil which is attached to the treated area of the body. For example, Patent Publication No. 8621 of 1981 or Patent Publication No. 18808 of 1988 are examples.

Furthermore, some known magnetic therapy devices can be applied to the treated area of the body by changing the specifications of the magnetic field, such as the frequency, strength, and waveform.

For example, Japanese Patent Publication No. 56-29552 is an example.

In addition, the longitudinal direction of bones and the direction of blood flow through major blood vessels are the same, and with the exception of the spine, bones are located close to the center of living tissue, and blood vessels are separated from major blood vessels. It then becomes tubules, which further divide into capillaries that are distributed throughout living tissues. Note that the speed of blood is faster in major blood vessels and slower in capillaries, and the flow rate of blood is greater in the direction parallel to the longitudinal direction of the bone than in the direction perpendicular to it.

On the other hand, magnetic treatment relies heavily on the electromotive force generated in the blood by applying a magnetic field within the living tissue of the treated area.

Therefore, when applying a steady magnetic field to the treatment area, unless it is applied at right angles to the direction of blood flow in major blood vessels or the longitudinal direction of the bone, the electromotive force due to blood movement will be halved, and therefore its effectiveness will be reduced. It will be halved.

Furthermore, when applying a low-frequency fluctuating magnetic field to the treatment area, an electromotive force is generated regardless of blood movement; however,
Electromotive force is also generated by the MJJJ of the blood mentioned above, and the lower the frequency and the stronger the magnetic field, the greater the effect, and therefore, the direction of blood flow in major blood vessels or bones If it is not applied at right angles to the longitudinal direction, its effectiveness is reduced.

Note that when the frequency used is low, the impedance of the circuit of the magnetic field generation source for generating the magnetic field is low, and therefore a large current can be easily flowed at a low voltage, making it difficult to create a strong magnetic field. In addition, when a ferromagnetic material is used for the magnetic field generation source, iron loss is reduced, making it unnecessary to stratify the iron core, making it easier to process the iron core, and creating an iron core with complex functions. can be produced. In addition, in the blood of the biological tissue of the treated body,
The electromotive force (physical catalytic action) due to blood movement increases, that is, the electromotive force unrelated to blood movement decreases,
Therefore, the energy supplied by the magnetic field is reduced, which is very desirable when considering therapeutic effects or side effects. Thus, the use of lower frequencies is both electrically and biologically favorable.

Next, the magnetic field must be of a predetermined strength and applied to the biological tissue of the intended patient. In this case, the shape of the body to be treated may be elongated and round like a hand or foot, or flat like a torso, and the size varies depending on the location. It must be able to accommodate those shapes. For example, in the case of femoral fracture treatment, the shape is long and round, and the width is about 29 cm.
As mentioned above, the bone is located near the center, and it must be possible to apply a magnetic field with a magnetic flux density of about 250 Gauss to the blood flowing near or inside the bone.

Furthermore, for example, the period until a person with a broken bone heals is (8) It takes 1 month to 24 months while using the device 8 to 12 hours a day, and during that time, the source of the magnetic field is directly applied to the disabled body of the person with a broken bone. Living with a fracture brace placed a heavy burden on the fracture sufferer, the therapist, and the caregiver. Therefore, it must be able to apply a magnetic field without being directly attached to the body of the person with the fracture.

By the way, there are known devices for promoting healing of fractures.
Alternatively, known magnetic therapy devices can respond to the above conditions, that is, the shape and size of the object to be treated, and can apply a magnetic field of a predetermined strength to a predetermined location, without directly attaching it to the body, to treat blood. There is nothing that satisfies the need to apply a magnetic field perpendicular to the flow direction or the longitudinal direction of the bone. For this reason, the treatment effect was not improved, and the burden was placed on the patient, the therapist, and the caregiver.

The present magnetic therapy device satisfies the above conditions and is intended to provide a magnetic therapy device for promoting the healing of fractured bones and other healing.

The structure and operation of the magnetic therapy device of the present invention will be described below.

(4) Consists of a current source C for generating a current and a magnetic field generating source M for generating a magnetic field in response to the current.

The current source C can generate a steady current as well as a fluctuating current at a low frequency, for example with an exponential variation of lHz.

The magnetic field generation source M has many performances to satisfy the above conditions. For example, Fig. 1(b), ferromagnetic materials (2), (3)
, (4) Wrap a magnetic field generating coil (5) around the whole, and also attach a reverse coil (6) to suppress leakage magnetic flux as much as possible,
At the same time as suppressing the influence on the body other than the biological tissue of the target treatment object and the influence on the surroundings other than the body, as mentioned above, the magnetic flux density in the center of the bone is about 250 when the gap is about 200 meters, such as in the thigh. A magnetic field that can generate a Gaussian magnetic field and has a magnetic flux distribution as uniform as possible in a single direction without being attached directly to the body is placed perpendicular to the direction of blood flow in major blood vessels or the longitudinal direction of bones. It can be added.

Also, for example, the ferromagnetic material (2) (8) is as shown in Fig. 1(b).
It is also possible to fix it by moving it in the direction of the arrow.
The magnetic field generating coil (5) is wound in sections, and the ferromagnetic materials (2), (3), and (4) can be further increased in sections or connected, depending on the size of the object to be treated. At the same time, the strength of the magnetic field can be adjusted here as well. For example, when the treatment object (1) is placed between the gaps in the ferromagnetic material (2) and a uniform magnetic field is required, if you want to apply the magnetic field in a concentrated manner, use the method shown in Figure 1 (d). ) can be used accordingly. Also, for example, when the treatment object (1) cannot be placed between the gaps of the ferromagnetic material (2) as shown in FIG. 1(e), use the above-mentioned set a (1)! It is also possible to arrange an upward coil (7) above the gap to strengthen the upward magnetic field. In addition, ferromagnetic materials (2), (3), (
4) is not stratified.

To perform treatment to promote the healing of fractured bones using this magnetic therapy device, apply the above-mentioned steady magnetic field perpendicular to the direction of blood flow in major blood vessels or the longitudinal direction of the bone. Or apply a varying magnetic field.

For example, a magnetic field with an exponentially changing waveform of IHz frequency and a magnetic flux density of about 200 Gauss at the center of the fracture treatment body is applied for about 8 hours every day.

FIG. 2 is an explanatory diagram of the treatment progress in that case. Figure 2 (A
) is a fracture of the tibia (11) and fibula (12) in the lower leg of a man before treatment. The fibula (12) has a comminuted fracture (
1B) was observed, and it was expected that it would take quite a long time to heal. A magnetic field was applied from above the cast, and FIG. 2(B) is a diagram 8 months after treatment. Osseous osteogenesis (14) is seen.

If no magnetic field was applied, healing would have been expected to be extremely delayed. In this way, the present magnetic therapy device can promote the healing of fractured bones.

The magnetic steamer of the present invention takes into consideration the size and shape of the treated body, the distribution of the magnetic field, and the method of applying the magnetic field to the body tissue, based on known magnetic treatment devices or known devices for promoting healing of bone fractures. The aim is to improve relationships, increase treatment effectiveness, and reduce the burden of treatment on patients, therapists, and caregivers.

[Brief explanation of the drawing]

The drawing is an explanatory view showing one embodiment of the treatment device of the present invention,
Fig. 1 (A) (B) (Q is a specific explanatory diagram of the treatment device of the present invention, and Fig. 2 is an explanatory diagram showing part (7) of the treatment progress of fracture by magnetic therapy. 1... ---Treatment body 2.8.4 --- One ferromagnetic material 5 --- Magnetic field generating coil 6 --- Reverse coil 7 --- Upward coil 0, --, -- Current source M --- Magnetic field source patent applicant Matsu 1) Kanta (8) 1, Display of 41 cases (Showa F7, Kaidera Gan) 237222 No. 3 Relationship with the person making the amendment case M plan q record applicant name for patent 1
No order ``old te 2r tree 4
Contents of the amendment 1. On page 5, line 11 of the specification, the words ``direction of blood flow'' are amended to read ``direction of blood flow in major blood vessels.'' . 2. In the same book, page 7, line 6, the phrase ``magnetic field is concentrated'' is corrected to [Fig. 1 (magnetic field concentrated, as in q''). 3. 4. In the third line of page 8 of the same book, the words ``fibula (December)'' are corrected to ``tibia (11) J.'' 5. In the same book, page 8, In the 5th line, "Gibbs" is corrected to "Gypsum". 6. In the same book, page 8, line 19, "(~σ3)OJ" is changed to 1.
Correct (R) (b) (e) (d) (e)j. 401-

Claims (1)

[Claims] A coil is divided and wound around the entire ferromagnetic material which is connected to a current source capable of generating a steady current or a fluctuating current, and is divided and magnetically connected, and a gap is provided at one place in a closed magnetic circuit. a magnetic field source having a variable length and adapted to generate a magnetic field that penetrates the treatment portion of the treatment body in response to the electric current without contacting the treatment body; A magnetic therapy device characterized in that the magnetic field is applied perpendicularly to the flow direction of the bone or the longitudinal direction of the bone.