JPH046740Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of use The device of the present invention is used for diagnosis of patients with rheumatoid arthritis (hereinafter referred to as patients).

Conventional technology Conventionally, patients were asked to wring a towel, and the twisting force was estimated by observing the movement and the amount of water squeezed out of a towel impregnated with a certain amount of water, and from this twisting force, the disease state of rheumatoid arthritis was determined. was diagnosing.

Problems that the invention aims to solve When towels are conventionally used for diagnosing chronic rheumatism, the amount of water squeezed out varies depending on the water content of the fabric, etc., and the value of the twisting force exerted by the patient is not clear. It was unreliable because it differed even in the dry state. As a result, the progression of the disease could only be grasped roughly, and an accurate diagnosis of chronic rheumatoid arthritis could not be made.

Furthermore, since torsional force is closely related to grip strength, a measuring device that can easily measure grip strength at the same time as torsional force has been desired.

Means for Solving the Problems The present invention solves the drawbacks of using conventional instruments, and provides a torsion dynamometer with a grip force meter that accurately and conveniently displays the patient's twisting force and grip strength in order to correctly diagnose the patient. The purpose is to provide a force meter.

That is, the present invention is a torsion dynamometer with a grip dynamometer, which is characterized by comprising a grip body and a grip dynamometer.

Also, the grip body 27, which has a fixed rod 3 protruding from one side wall 1a of the housing 1 and a rotating rod 5 protruding from the other side wall 1b, and the torsional force of the rotating rod 5 acting on the fixed rod 3 are displayed. A notch groove 12 is opened from the tip end portions 3b, 5b to the base end portions 3a, 5a of the fixed rod 3 and rotating rod 5, respectively, of the torsion force meter, which is connected to the display box 18 by a conducting wire 28, Notch groove 1
A grip force strain gauge 13 is attached to each of the fixed rod divided piece 3c and the rotating rod divided piece 5c created by opening 2.
14 is attached, and the display box 18 has electric circuit sections 19, 29, 30 for amplifying the electric signals obtained from the grip force strain gauges 13, 14, and electric circuit sections 19, 2.
Fixed bar grip force indicator 21 that displays outputs of 9 and 30
and a rotating rod grip force indicator 22 are attached.

Embodiments Embodiments of the present invention will be described in detail based on the accompanying drawings.

A protrusion 2 is formed at the center of the outer surface of one side wall 1a of the housing 1, which is a cylindrical casing, and a proximal end 3a of a gripping fixing rod 3 is externally fitted onto the protrusion 2.

A bearing 4 is fitted and fixed in the center of the other side wall 1b of the housing 1, and a base end 5a of a rotating rod 5 for gripping is press-fitted into the bearing 4.

A base end 6 of an elastic body 6 is applied to one side wall 1a of the housing 1 to cause deformation by applying a torsional force.
a is screwed onto the tip 6b of the elastic body 6 and the rotating rod 5.
A locking mechanism 7 is provided on the base end 5a of the base end 5a, and the distal end 6b and the base end 5a are connected to transmit rotational force.

The shape of the elastic body 6 is such that a flange is formed at one end of the cylinder, and a disk is fixed to the other end of the cylinder in the form of a lid, and a protrusion 8 is provided on the disk. A torsional force strain gauge 9 is attached to the side of the elastic body 6.

The locking mechanism 7 is constructed by meshing the protrusion 8 with a groove 10 formed on the base end 5a of the rotating rod 5.

A tightening screw 11 for fixing the fixing rod 3 to the protrusion 2 is provided at the base end 3a of the fixing rod 3,
The notch groove 12 spanning the diameter of the fixing rod 3
It is provided from the distal end 3b to just before the proximal end 3a.

Furthermore, on the circular side near the base end of the fixed rod divided piece 3c, which is divided into two by the notch groove 12, a strain gauge 1 for gripping force is provided to detect the strain of the fixed rod divided piece 3c.
3 is pasted. Similarly, the rotating rod 5 also has a tip 5b.
A notch groove 12 is carved from the base end portion 5b to the base end portion 5b, and a grip force strain gauge 14 for detecting distortion of the rotating rod segment portion 5c is provided on the circular side near the base end of the rotating rod segment portion 5c. It is pasted.

Further, the fixed rod segment 3c and the rotating rod segment 5c are each covered with a thick body 15 made of an arched column having a predetermined wall thickness, and is attached with a detachable screw 16. The thickness body 15 is available in various thicknesses, such as thin, medium, thick, etc., and is attached to and detached from the fixed rod segment 3c and rotating rod segment 5c when the detachable screw 16 is attached and detached.

A line 17 is attached at a position close to the housing 1 on the arcuate surface of the thick body 15 at a constant distance from the base end of the thick body 15.

As described above, the grip body 27 is constructed by providing the fixed rod 3 and the rotating rod 5 covered with the thick body 15 on both sides of the housing 1.

The display box 18 includes electric circuit sections 19, 29, and 30 that amplify the electric signals obtained from the torsional force strain gauge 9 and the grip force strain gauges 13 and 14, and the output signals of the electric circuit sections 19, 29, and 30. A torsional force indicator 20, a fixed rod grip force indicator 21, and a rotating rod grip force indicator 22 are housed. The grip strength strain gauges 13 and 14
The fixed rod grip force indicator 21, the rotating rod grip force indicator 22, the fixed rod 3, and the rotating rod 5 constitute a fixed rod grip force meter and a rotating rod grip force meter.

An operation panel 23 is provided on the front of the display box 18, and the operation panel 23 has a torsion force indicator 2 electrically connected to the torsion force strain gauge 9.
0 and the grip strength strain gauge 13 attached to the fixed rod 13
fixed bar grip force indicator 21 electrically connected to
A rotating rod grip force indicator 22 electrically connected to a grip force strain gauge 14 affixed to the rotating rod is provided. Furthermore, at the lower position of each of the torsional force indicator 20, fixed rod grip force indicator 21, and rotating rod grip force indicator 22, there is a reset switch 24 that returns the value displayed on the display to 0, and a resistance included in the strain gauge. Balance adjustment knob 2 to balance the values
5 and a balance lamp 26 that lights up when the strain gauge is balanced.

The display box 18 and the grip body 27 are connected by a conductive wire 28.

Function The device of the present invention is used by the patient in a manner similar to wringing out a towel. That is, the patient grips the fixed rod 3 with one hand, grips the rotating rod 5 with the other hand, and applies force to rotate the rod in opposite directions. Fixed rod 3
When gripping the rotating rod 5, the two fixed rod segments 3c are held close to each other, and when gripping the rotating rod 5, the two rotating rod segments 5c are also grasped close to each other. Further, it is assumed that the patient grasps the tip of the thick body 15 from the line 17 attached thereto.

When the patient exerts force, the torsional force distorts the elastic body 6 within the housing 1, and the strain of the elastic body 6 is displayed as a torque value on the torsional force indicator 20. In addition, the grip force is determined by distorting the fixed rod divided piece 3c and the rotating rod divided piece 5c, and the fixed rod grip force display 21 uses the distortion of the fixed rod divided piece 3c as the grip force value of the hand gripping the fixed rod 3.
The distortion of the rotating rod divided piece 5c is displayed on the rotating rod grip force display 22 as the grip force value of the hand gripping the rotating rod.
to be displayed.

The elastic body 6 is twisted by the fixed rod 3 and the rotating rod 5, and the rotational force of the rotating rod 5 is applied to the base end 5 of the rotating rod 5.
It is conducted to the elastic body 6 via the locking mechanism 7 formed by the tip portion 6b of the elastic body 6 and the tip portion 6b of the elastic body 6. That is, the rotational force is transmitted from the groove 10 of the rotating rod base end 6a to the protrusion 8 of the elastic body distal end 6b. During this transmission, the locking mechanism 7 prevents the bending force of the rotating rod 5 from being transmitted to the elastic body 6, and only the rotational force is transmitted to the elastic body 6. Ru.

To describe the operation of various members arranged on the operation panel 23, in the display box 18 charged with commercial voltage, each balance adjustment knob 25 is turned to balance the strain gauges and the balance lamp 26 is turned on. Next, the reset switch 24 is pressed to make the displayed value on the display zero, and then the patient is guided to grasp and twist the grip body 27. When the patient grasps and twists the grip body 27, the twisting force and the grip strength of both hands are displayed on the torsion force display 20, the fixed rod grip force display 21, and the rotating rod grip force display 22. The practitioner uses the values displayed on these indicators as diagnostic data. For the thickness body 15, various thicknesses are prepared, and one that is easy to grip according to the size of the palm is selected and attached. The thick body 15 is attached and detached at the same time as the attachment and detachment screw 16 is attached and detached.

Effects of the invention The device of this invention is designed to simulate the action of squeezing a towel, by gripping and twisting a fixed rod and a rotating rod, and using this grip force to separate the fixed rod and the rotating rod. Since each piece is distorted, the elastic body is further distorted by the twisting force, and the amount of each strain is displayed on the torsion force display, fixed bar grip force display, and rotating bar grip force display, this display value is It is a useful material for diagnosing rheumatoid arthritis patients. For example, in a situation where a decrease or improvement in a patient's torsional force is correlated with the progression or recovery of the patient's disease, accurately quantifying the torsional force using the device of the present invention will greatly assist in patient diagnosis. Ta.

Furthermore, since grip strength is closely related to twisting force, measured values of grip strength also greatly assist in patient diagnosis. According to the device of the present invention, grip strength can be measured with the same device at the same time as torsional force is measured, so the preparation of measuring devices and the number of steps required for measurement can be reduced, making it very convenient to use.

[Brief explanation of drawings]

The attached drawings show an embodiment of the present invention.
FIG. 1 is a sectional view of the grip body, FIG. 2 is an external view of the display box, FIG. 3 is an external view of the grip body, and FIG. 4 is a perspective view of the thickness body. 1... Housing, 1a... One side wall, 1b...
Other side wall, 3...fixing rod, 3a...base end, 3b...
...Tip part, 3c...Fixed rod divided piece, 5...Rotating rod, 5a...Base end part, 5b...Tip part, 5c...
Rotating rod divided piece, 6...elastic body, 6a...base end part,
9...Strain gauge for torsion force, 12...Notch groove, 13, 14...Strain gauge for grip strength, 18...
Display box, 19, 29, 30... Electric circuit section, 2
0... Torsional force indicator, 21... Fixed bar grip force indicator, 22... Rotating bar grip force indicator, 27... Grip body, 28... Conductor.

Claims (1)

[Claims for Utility Model Registration] A housing 1 consisting of a casing, a fixing rod 3 protruding from one side wall 1a of the housing 1, and a fixed rod 3 that rotates on the other side wall 1b opposite to the one side wall 1a of the housing 1. A grip body 27 consisting of a rotary rod 5 that can protrude, an elastic body 6 connected between the housing 1 and the rotary rod 5, and to which a torsion force strain gauge 9 is attached; a fixed rod 3; , a fixed rod grip force meter consisting of a grip force strain gauge 13 attached to the fixed rod 3 to detect strain occurring in the fixed rod 3, and a fixed rod grip force indicator 21 that displays the signal obtained by the grip force strain gauge 13. , a rotating rod 5, a grip force strain gauge 14 that is attached to the rotating rod 5 and detects strain occurring in the rotating rod 5, and a rotating rod grip force indicator that displays the signal obtained by the grip force strain gauge 14. A torsion dynamometer with a grip dynamometer consisting of a rotating rod grip dynamometer.