IP Library Granted Patent US 12690794
Granted Patent B2
US 12690794 · App. 17/615,811 · Granted Jul 28, 2026

Probe, packaged probe, external device coupler, and biofeedback device

Inventors: Yuji Nishizawa (Tokyo, JP); Takeo Komamura (Shiroi, JP); Kenzo Komamura (Shiroi, JP)
Assignees: SOFKEN CO., LTD.; NATIONAL CANCER CENTER
A61B5/296A61B5/25A61B5/389A61B5/6847A61B5/742A61B2562/225
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Quick Facts
Patent No.
US 12690794
App. No.
17/615,811
Granted
Jul 28, 2026
Kind
B2
Abstract

A probe includes an insertion portion insertable into a body organ, a projecting portion being exposed to an outside of a body after the insertion portion is inserted into the body organ, a device mounting area onto which an external-device coupler is removably mountable, and sensing electrodes provided on the insertion portion and the device mounting area. When the insertion portion is inserted into the body organ, the sensing electrodes detect a biosignal and become conductive with coupling electrodes of the external-device coupler mounted onto the device mounting area. The probe is an electromyograph probe that detects a biosignal measurable by an electromyograph. The insertion portion and the projecting portion of the probe may be integrated or separate from each other. Both of the insertion portion and the projecting portion or only the insertion portion may be disposable.

Claims (55)

1 . An electromyograph probe comprising:

a probe to be inserted into a body organ to obtain a biosignal; and

an external-device coupler removably mounted on the probe;

wherein the probe includes:

an insertion portion insertable into the body organ,

a projecting portion that is exposed to an outside of a body after the insertion portion is inserted into the body organ,

sensing electrodes that detect the biosignal when the insertion portion is inserted into the body organ, and

a device mounting area onto which the external-device coupler is removably mounted,

wherein the insertion portion and the projecting portion are integrally formed,

wherein an end of the projecting portion is divided into two parts by a division groove,

wherein the projecting portion comprises a first groove and a second groove in a peripheral surface thereof,

wherein the sensing electrodes are provided at least on an outer peripheral surface of the insertion portion,

wherein the external-device coupler includes a coupler main body and an extension arm member,

wherein the coupler main body includes

a fitting hole in which the probe is fitted,

a fitting recessed portion that is communicating with the fitting hole and opened to outer periphery of the coupler main body, and

coupling electrodes that become electrically conductive with the sensing electrodes,

wherein the extension arm member includes

a push-in protrusion configured to be inserted into the first groove,

a plate configured to be received by the second groove when the push-in protrusion is inserted into the first groove,

wherein said two parts of the projecting portion are forced apart from each other and electrode protrusions of the sensing electrodes contact electrode protrusions of the coupling electrodes so that the sensing electrodes become electrically conductive with the coupling electrodes, when the extension arm member is pushed into the fitting recessed portion and the push-in protrusion is inserted into the first groove in a state in which the external-device coupler is mounted onto the probe so that the device mounting area of the probe fits into the fitting hole of the coupler main body.

2 . The electromyograph probe according to claim 1 ,

wherein the whole probe is disposable.

3 . A biofeedback device for perceptualizing a biosignal, the biofeedback device comprising:

the electromyograph probe of claim 2 ;

a biosignal processing unit configured to process the biosignal obtained by the sensing electrodes of the electromyograph probe into perceivable information; and

a display unit configured to visibly display the processed perceivable information processed by the biosignal processing unit.

4 . The electromyograph probe according to claim 1 ,

wherein a separation sheet is mounted on the probe.

5 . The electromyograph probe according to claim 4 , wherein the separation sheet is disposable.

6 . A biofeedback device for perceptualizing a biosignal, the biofeedback device comprising:

the electromyograph probe of claim 5 ;

a biosignal processing unit configured to process the biosignal obtained by the sensing electrodes of the electromyograph probe into perceivable information; and

a display unit configured to visibly display the processed perceivable information processed by the biosignal processing unit.

7 . A biofeedback device for perceptualizing a biosignal, the biofeedback device comprising:

the electromyograph probe of claim 4 ;

a biosignal processing unit configured to process the biosignal obtained by the sensing electrodes of the electromyograph probe into perceivable information; and

a display unit configured to visibly display the processed perceivable information processed by the biosignal processing unit.

8 . The electromyograph probe according to claim 1 , further comprising:

a package configured to contain the probe,

wherein the package has a shape and a size that enable individual packaging of the probe, and

wherein the shape and the size of the package are such that, when a part of the package is cut away to open the package, the insertion portion or the projecting portion of the probe is exposed to an outside of the package and another one of the insertion portion and the projecting portion of the probe is contained in a remaining part of the package.

9 . A biofeedback device for perceptualizing a biosignal, the biofeedback device comprising:

the electromyograph probe of claim 8 ;

a biosignal processing unit configured to process the biosignal obtained by the sensing electrodes of the electromyograph probe into perceivable information; and

a display unit configured to visibly display the processed perceivable information processed by the biosignal processing unit.

10 . A biofeedback device for perceptualizing a biosignal, the biofeedback device comprising:

the electromyograph probe of claim 1 ;

a biosignal processing unit configured to process the biosignal obtained by the sensing electrodes of the electromyograph probe into perceivable information; and

a display unit configured to visibly display the processed perceivable information processed by the biosignal processing unit.

11 . The electromyograph probe according to claim 1 , wherein a regulating protrusion is formed on an inner peripheral surface of the fitting hole of the coupler main body in order to prevent upside-down insertion of the probe.

12 . A biofeedback device for perceptualizing a biosignal, the biofeedback device comprising:

the electromyograph probe of claim 11 ;

a biosignal processing unit configured to process the biosignal obtained by the sensing electrodes of the electromyograph probe into perceivable information; and

a display unit configured to visibly display the processed perceivable information processed by the biosignal processing unit.