JPS61119258A - Fusion promotor of bone fructure part - 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 [Industrial Field of Application] The present invention relates to a device for promoting healing of bone injuries.

[Prior Art] It is generally known that when a bone of a living body is damaged, such as a fracture, by passing an appropriate electric current through the damaged part, healing is promoted and the bone recovers quickly. Conventional devices used for this purpose use metal electrodes for both the anode and the cathode, and the entire device, including these electrodes and the current generator, is buried in the body.

[Problems to be Solved by the Invention] However, such conventional devices have problems in that metal is used for the anode and the entire device is buried in the body.
There were the following problems. That is, since negative ions gather at the anode, when metal (for example, stainless steel) is used, heavy metals such as iron, nickel, and chromium are oxidized, and heavy metal ions harmful to living bodies are fused and released into the body. In addition, implanting the entire device inside the body requires a surgical procedure that involves bleeding, which poses a risk of infection.
Surgery is required if the power supply battery runs out during the treatment period and needs to be replaced with a new one, and surgery is also required to remove the device after bone union, which places a heavy burden on the patient. I once put it away.

This invention solves the above-mentioned problems of the conventional methods, and prevents heavy metal ions harmful to the living body from leaching out from the anode as well as the cathode, and also prevents the patient from undergoing surgery.
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[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a device for promoting healing by applying an electric current to a bone damaged part of a living body, which is inserted into a bone from outside the body, and which is inserted into a bone from outside the body and A stainless steel electrode with an insulating coating on the tissue penetrating part is inserted into the bone from outside the body,
and a carbon electrode whose soft tissue penetrating portion around the bone is insulated, and a current generating device that is connected to both of the electrodes outside the body and flows a current from the carbon electrode to the stainless steel electrode. It is something.

[Function] By adopting the above-mentioned means, this invention eliminates the risk of heavy metal ions harmful to the living body being leached from the carbon anode, and the burden on the patient is reduced by the injection of both electrodes at the start of treatment. It will only be removed when the treatment is completed.

[Example] Embodiments of the invention shown in the drawings will be described below.

FIG. 1 shows an embodiment of the present invention, in which 1 indicates a living bone, 2
3 is a stainless steel electrode (cathode) inserted into the bone 1 from outside the body, and the soft tissue penetrating portion around the bone is insulated with a Teflon coating 4. 5 is a carbon electrode (
anode), and the soft tissue penetration around the bone is insulated with an epoxy coating 6. 7 is a current generator equipped with a power supply battery 8 and a constant current circuit 9, in which a negative terminal is connected to the stainless steel electrode 3 outside the body, and a carbon electrode 5 is connected to the stainless steel electrode 3 outside the body.
A positive terminal is connected to each of the electrodes, and a current is passed from the carbon electrode 5 to the stainless steel electrode 3 along the bone 1 to the damaged part 2.

When using the above healing device, use the stainless steel electrode 3
is a bone fragment near the injured part (fracture line) 2 and the periosteum is intact (
Insert the carbon electrode 5 on the opposite side of the stainless steel electrode 3 across the damaged area 2, and connect the positive and negative terminals of the current generator 7 with the carbon electrodes, respectively. 5. Connect to the stainless steel electrode 3 and apply a constant current of 5 to 20 μA. Then, positive ions such as calcium, potassium, and magnesium gather on the stainless steel electrode (cathode) 3, so the effects of these and
The microcurrent induces proliferation of the periosteum, and a large number of undifferentiated mesenchymal cells produced thereby become osteoblasts (osteoblasts).
Due to the fact that st.
This promotes healing and allows for early recovery. The stainless steel electrode (cathode) 3 collects positive ions, so it is not oxidized, and heavy metal ions that are harmful to the living body cannot melt out, and the carbon electrode (anode) 5 collects negative ions, but since it is made of carbon, it is not oxidized. Heavy metal ions harmful to the body are not leached out. Furthermore, the burden placed on the patient is that both electrodes 3.5 are inserted into the bone 1 from outside the body at the start of treatment.
It is only necessary to remove both electrodes 3.5 from the bone 1 upon completion of the treatment.

FIG. 2 shows another embodiment of the present invention, which is similar to FIG. 1 except that a stainless steel electrode 3 is inserted across the injured part (fracture line) 2. In this case, the carbon electrode 5 only needs to be inserted into either side of the stainless steel electrode 3, so there are few restrictions on the insertion position. This healing promoting device also functions in the same manner as the device shown in FIG.

In each of the above embodiments, one stainless steel electrode 3 and one carbon electrode 5 are shown, but both electrodes 3.5
In particular, a plurality of stainless steel electrodes 3 may be used, and although the soft tissue penetrating portion of the stainless steel electrode 3 is coated with Teflon coating 4, it may be insulated and coated with other appropriate resin, and the soft tissue portion of the carbon electrode 5 may be coated with Teflon coating 4. Although the epoxy coating 6 was applied to the 5g1i passage part, it may be insulated with a silicone tube or polyethylene, and the current generator 7 was designed to generate a direct 51 current, but it may also be configured to generate a pulsating current. . In addition, to fix the stainless steel electrode 3 to the insertion site, a screw can be formed at the tip of the stainless steel electrode 3 and screwed directly to the bone 1, and to fix the carbon electrode 5 to the insertion site, a bandage can be used. 4. Using so-called resin external fixation,
The stainless steel electrode 4113 and the carbon electrode 5 as well as the current generator 7 can be fixed together. moreover,
In each of the above-mentioned embodiments, a periosteal lamina is exemplified as the anterior plate formed by the fusion promoting device, but if the medullary cavity is electrically stimulated, a medullary anterior plate is also formed. It goes without saying that various changes and modifications are possible.

【Effect of the invention〕

Since this invention is constructed as described above, not only will heavy metal ions harmful to living organisms not be leached from the cathode, but there is also no risk that heavy metal ions harmful to living organisms will be leached from the carbon anode. It is possible to reduce the pain without putting a large burden on the patient due to the surgery, and therefore, it can simply be applied to the bone damaged area.
It not only promotes healing by flowing the R flow, but also has excellent effects such as preventing new injuries caused by harmful heavy metal ions and physical exhaustion due to surgery, thereby speeding up recovery. .

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing one embodiment of this invention, and FIG. 2 is an explanatory diagram showing another embodiment of this invention. DESCRIPTION OF SYMBOLS 1... Bone, 2... Damaged area, 3... Stainless steel electrode, 4... Teflon coating, 5... Carbon electrode, 6... Epoxy coating, 7...
Current generator, 8... power supply battery, 9... constant current circuit. Applicant: Ito High Frequency Co., Ltd. Representative: Ashi 1) Naoe and 1 other person No. 2a

Claims (1)

[Scope of Claims] 1. A device that promotes healing by applying an electric current to a damaged bone in a living body, which includes a stainless steel electrode that is inserted into the bone from outside the body, and whose soft tissue penetrating portion around the bone is insulated. , a carbon electrode is inserted into the bone from outside the body and the soft tissue penetrating part around the bone is insulated, and the carbon electrode is connected to both electrodes outside the body, and a current is passed from the carbon electrode to the stainless steel electrode. What is claimed is: 1. A device for promoting healing of a bone injury site, comprising: a current generating device for causing a current to flow; 2. The device for promoting healing of a bone injury according to claim 1, wherein the stainless steel electrode is inserted into a region close to the bone injury and where the periosteum is intact. 3. The device for promoting healing of a bone injury according to claim 1, wherein the soft tissue penetrating portion of the stainless steel electrode is coated with Teflon. 4. The device for promoting healing of a bone injury according to claim 1, wherein the soft tissue penetrating portion of the carbon electrode is coated with epoxy. 5. The device for promoting healing of a bone injury according to claim 1, wherein the current generating device comprises a power source battery and a constant current circuit.