JP2013076686A - Extend goniometer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an extend goniometer capable of extending a length of each shaft of the goniometer to an arbitrary length when necessary, simultaneously measuring an angle and a length, reducing a reading mistake of a scale or the like and having a material and a color tone allowed to be easily accepted also by children.SOLUTION: Since a basic shaft and a moving shaft with length scales can be extended/contracted by sliding a basic slide shaft 2 and a moving slide shaft 4, an arbitrary length can be also measured. Further a locking mechanism is attached to prevent each shaft from being pulled out. Lens parts 8 are attached to a moving body shaft 3 so as to observe enlarged angle scale and numerals of a protractor. By using an organic polymeric material as a material of the respective shafts and applying suitable coloring to the shafts, the material and the color tone may be easily accepted by children.

Description

  The present invention relates to more accurately measuring body joint angles, morphology, limb length and bone length.

  Many of the conventional goniometers are composed of a metallic basic axis and a moving axis, and are mainly used for the purpose of measuring the angle of the joint. Some of them are not useful but can measure the length. A goniometer has a protractor mechanism on the basic axis, and one end of the moving axis is semi-fixed within a range where it can move at the center of the protractor. The center of the protractor is placed at the center of the joint, and the basic axis and moving axis that move like a heel are placed. It measures the angle between the two axes when applied to each measurement point on the body part.

  In actual clinical settings, a small one is usually carried, but if it is not suitable for joints of various sizes, it is necessary to use several types of goniometers.

  The function of the conventional goniometer is mainly to measure the joint angle as described above, and there is a limit to the measurement because no useful scale is provided when the length measurement is required.

  Since the angle scale of the conventional goniometer is fine and difficult to distinguish in color, there are problems such as misreading, rereading, and reading time delay.

  Many conventional goniometers are made of metal, and the diagnosis and examination are hindered by the fear of the shape and gray color, the negative image, and the cold and dark associations.

Conventional goniometers have the following drawbacks.
(B) When measuring joint angles in clinical settings, it was not always possible to adapt to joints of various sizes.
(B) Since the function of measuring the length is not sufficient, it was necessary to use other measuring instruments (such as a tape measure and a ruler) in addition to the goniometer for measuring the length.
(C) In addition to difficult-to-recognize colors that do not take color harmony (color harmony) into account, the angle scale is so fine that the scale is misread and reread and the reading time is prolonged.
(D) Many goniometers are made of metal, and their cold materials, shapes, and colors can cause fear of negative images and associations, especially in children, which often hindered examinations and examinations.
The present invention aims to improve the above problems.

  According to the first aspect of the present invention, similarly to the case where the basic main body shaft 1 stores the basic slide shaft 2, the movable main body shaft 3 stores the moving slide shaft 4, and both the slide shafts slide in the long axis direction. It is characterized by having a mechanism that expands and contracts the entire length of the shaft and the moving shaft.

  According to the second aspect of the present invention, the cross-sectional shape of each of the slide shafts 2 and 4 is the same trapezoid as the cross-sectional shape of each of the main body shafts 1 and 3, so that the trapezoid is short when each slide shaft is in the stored state. Since the bottom side comes to the surface, it is characterized by a structure that does not deviate in the direction of the upper surface (surface).

  According to a third aspect of the present invention, in the method of incorporating the slide shafts 2 and 4 into the main body shafts 1 and 3, when the slide shaft right end portion is inserted so as to slide into the groove of the main body shaft right end lock portion, the slide shaft The lock part at the left end cannot be geometrically incorporated, but along the major axis so that the groove of the main body slide part (short base of trapezoidal cross section) expands within the elastic limit of the material (organic polymer material) This is characterized by a structure that can be easily fitted when a bending moment is applied to the main body shaft.

  In the invention according to claim 4, the lock portion 5 is provided at the right end of each of the main body shafts 1 and 3, and the obliquely processed protrusion of the lock portion 6 is provided at the left end of each of the slide shafts 2 and 4. When the slide shaft and the main shaft are locked to the maximum, the locking portions of the slide shaft and the main shaft are engaged with each other to perform the braking function, and at the same time, the reaction force (F) from the main shaft side applied to the oblique portion of the slide shaft lock portion 6 The generated component force (f) in the direction of the major axis and 90 degrees acts so as to press the slide shaft against the linear slide portion 7 on the main body shaft side (locking action), thereby eliminating slide shaft unevenness at the joint portion. In addition, the main shaft and the slide shaft extended to the maximum are linearly joined.

  The invention described in claim 5 is characterized in that it has a useful function as a ruler by providing graduations at a sufficient distance on all of the main body shafts 1 and 3 and the slide shafts 2 and 4.

  According to the sixth aspect of the present invention, when the moving main body shaft 3 moves while tracing the scale and the numbers on the protractor of the basic main body shaft 1, the tracing portion of the moving main body shaft 3 is formed into a lens-like shape. It is characterized by an enlarged scale and numbers.

The invention according to claim 7 makes it easy to distinguish scales and numbers from the viewpoint of perceptual and color harmony by applying appropriate coloring including fluorescent color to each body shaft and each slide shaft, and In light of color associations (things associated with colors), in recent years, light pink colors (warm, soft, warm, euphoria, etc.) are commonly used in nurses' white robes at hospitals, etc. On the other hand, the colors based on gray have abstract associations such as gloomy, loneliness, calm, etc. Especially in pediatric areas, crying just by looking at a goniometer of a cold metal (actually cold) In consideration of the fact that some children give out, it is characterized by making it easier to accept examinations and examinations by using materials (organic polymer materials) and colors that are easy for children to accept.

  According to the invention of claim 1, since the basic axis and the moving axis can be adjusted to an appropriate length according to the measurement site of the body, there is no need to change the goniometer for both the large joint and the small joint, and the same goniometer can be used. Measurement can be performed. For example, a large joint such as a knee or a hip joint can be measured without a problem following measurement of a small joint such as a hand, so that an efficient and accurate examination can be performed.

  According to the second aspect of the present invention, the slide shafts 2 and 4 housed in the main body shafts 1 and 3 have a simple structure (trapezoidal cross section) that cannot be moved except in the sliding direction, and thus easy to manufacture. Therefore, it can contribute to the suppression of the unit price.

  According to the invention of claim 3, the method of incorporating the slide shafts 2 and 4 into the main body shafts 1 and 3 is a method that utilizes the elastic characteristics of the material without applying extra and complicated processing. The structure becomes simple and leads to a reduction in unit price as in [0016].

  According to the invention of claim 4, a braking function that can be extended to the maximum without losing the slide shafts 2, 4 is necessary in order to save useless labor, especially in clinical settings. Not only is it extremely useful, but also improves inspection efficiency.

  According to the invention of claim 5, by providing a scale similar to a ruler on each of the main body shafts 1 and 3 and each of the slide shafts 2 and 4, the length of the limb, the length of the bone, and clinically necessary regardless of the size of the measurement site The length and alignment of bones, and the degree of deformation can be measured quickly and accurately by using the ruler and angle meter functions.

  According to the invention of claim 6, since the lens mechanism 8 provided on the movable body shaft 3 shows the scale and number of the protractor enlarged, it can contribute to the improvement of inspection efficiency as well as the reduction of misreading.

  According to the invention of claim 7, by appropriately coloring the main body shafts 1 and 3 and the slide shafts 2 and 4, there is an effect of relieving the negative image and fear of the conventional goniometer, particularly in the pediatric field. Therefore, the acceptance of the inspection or the inspection instrument itself is improved, the necessary inspection can be performed, and the efficiency of the diagnosis can be improved.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, the best mode for carrying out the invention will be described with reference to the drawings. In addition, in each drawing, the components etc. which attached | subjected the same code | symbol showed all the same thing, and illustration is abbreviate | omitting suitably for the components etc. which are unnecessary for description.
[FIG. 1] is an assembly drawing of the extended goniometer according to the present invention, in which a basic shaft (basic slide shaft 2 is accommodated in a basic main body shaft 1) and a moving shaft made of a transparent organic polymer material (moved to a moving main shaft 3). Sura

The shaft 4 is semi-fixed (fixed so as to allow rotation between the basic shaft and the moving shaft), and both shafts have moderate resistance around the semi-fixed portion. The angle scale and the numbers on the basic axis can be read through the lens unit 8 of the moving axis. Also, the slide shafts 2 and 4 housed in the basic body shaft 1 and the movable body shaft 3 can both be extended and contracted by sliding, and the main body shafts 1 and 3 and the movement shafts 2 and 4 have a ruler scale. Since the numbers are written, it is easy to measure the length.

  2A is a basic shaft assembly view, FIG. 2B is a plan view, FIG. 2C is a right side view, and FIG. In the basic shaft assembly drawing (a), the basic slide shaft 2 is housed in the basic body shaft 1 and can be expanded and contracted. When the basic slide shaft 2 is extended to the maximum, the extension is braked by the main body shaft lock portion 5 of the basic main shaft 1 and the slide shaft lock portion 6 of the basic slide shaft 2. (D) As shown in the detailed view of the lock portion, the reaction force (F) applied to the body shaft lock portion 5 when the basic slide shaft 2 is extended to the maximum with the force (F) is the direction of the slide direction and 90 degrees, That is, in the assembly drawing, it acts as a component force (f) downward and presses the basic slide shaft 2 against the linear slide portion 7 of the basic main body shaft 1, so that the connecting portion (locking portion) between the basic main body shaft 1 and the basic slide shaft 2. Has a braking function and a locking function, as well as a function to maintain linearity. It can be seen from the plan view of (b) and the right side view of (c) that the bottom surface of the basic slide shaft 2 is coincident with the bottom surface of the basic body shaft 1. Also, from the right side view of (c), the trapezoid of the cross section of the basic slide shaft matches the trapezoid of the groove of the basic main body shaft 1, and the basic slide shaft 2 does not move except in the sliding direction and has a structure that does not come off. I understand.

  (A) of [FIG. 3] is a bottom view of the basic main body shaft 1, and by projecting the end of the slide portion 7 inward, the main body shaft lock portion 5 becomes the slide shaft lock portion 6 ([FIG. 2] (a) As shown in the basic shaft assembly drawing ([0024]), the structure that exhibits the braking function, the locking function, and the linearity of the slide shaft can be seen. (B) is AA sectional drawing of the basic body axis | shaft 1, shows the trapezoidal sectional structure which accommodates the basic slide axis | shaft 2, and is more than the trapezoidal sectional structure of the slide part of the BB sectional view of (c). The upper and lower bases of the trapezoidal part are shortened. Thus, it can be seen that the locking portion 5 of the basic body shaft 1 has a braking and locking function by narrowing the trapezoidal cross section. (D) shows CC sectional drawing and understands the structure of a semi-fixed part.

The movement axis in FIG. 4 includes a movement main body axis 3 and a movement slide axis 4. The top view of (a) shows a structure that maintains the linearity between the movable body shaft 3 and the movable slide shaft 4 at the same time that the braking function and the lock function are exhibited by projecting the end of the slide portion 7 inward. (Same as the functional description of [0025] and [FIG. 3]). In the plan view of (b), it can be seen that the upper surface of the movable slide shaft 4 coincides with the upper surface of the movable body shaft 3. In the bottom view of (c), when the moving body shaft center line 11 and the moving slide shaft center line 12 are drawn in the long axis direction around the moving shaft center, the moving body shaft 3 rotates on the protractor of the basic body shaft 1. It has a function to indicate the scale of angle. A sectional view taken along the line A-A in FIG. 4D shows a state in which the movable slide shaft 4 is housed in the movable body shaft 3. The lens portion 8 in the BB cross-sectional view of (e) has a function of enlarging the scale and number of the protractor of the basic body shaft 1 during angle measurement.

  FIG. 5 shows the basic slide shaft 2 and the movable slide shaft 4, and the shapes of the slide shafts 2 and 4 are exactly the same. (A) is a bird's-eye view of the slide shafts 2 and 4, (b) is a top view, (c) is a right side view, and (d) is a left side view. From the drawings of (a) and (b), it can be seen that one of the slide portions 7 is a straight line over the entire region, and the other is configured to form the lock portion 6 by increasing its width obliquely from the middle. From the right side view of (c) and the left side view of (d), it can be seen that the cross sections of the slide shafts 2 and 4 are trapezoidal, and the slide direction when incorporated into the basic main body shaft 1 or the movable main body shaft 3. It is further clarified that the structure (described in [0024]) is restricted and movements other than are restricted.

  In the sectional view of FIG. 6, a mechanism for incorporating the slide shafts 2 and 4 into the main body shafts 1 and 3 is shown. Since both the main shaft and the slide shaft have elasticity in the physical properties of the material, the property is utilized, and as shown in the figure, a bending moment (M) is applied to the main shaft side to cause distortion within the elastic limit and a slight gap (δ ) Can be inserted into the slide shaft.

It is an assembly drawing showing the composition of a basic axis and a movement axis. (A) is an assembly drawing of a basic shaft composed of a basic main body shaft 1 and a basic slide shaft 2. (B) is a plan view in which the bottom surfaces of the basic body shaft and the basic slide shaft are coincident with each other. (C) is a right side view in which the basic slide shaft is housed in the basic body shaft. (D) is a lock part detail drawing explaining a locking mechanism. (A) is the bottom view of the basic main-body axis | shaft 1, and the centerline 9 is drawn. (B) is sectional drawing which can understand the trapezoid groove | channel which incorporates the slide shaft 2. FIG. (C) It turns out that the trapezoidal groove | channel of BB sectional drawing is larger than the trapezoidal groove | channel of AA cross section. (D) is sectional drawing which understands the structure of a semi-fixation part. FIG. 2A is a top view of a moving shaft composed of a moving main body shaft 3 and a moving slide shaft 4. FIG. 4B is a plan view showing that the upper surface of the movable slide shaft 4 is coincident with the upper surface of the movable main body shaft 3. (C) is a bottom view showing that the center line 11 is drawn along the moving body axis. FIG. 4D is a cross-sectional view showing a state in which the slide shaft 4 is incorporated in the movable body shaft 3. FIG. 4E is a cross-sectional view of the lens unit 8. (A) is a bird's-eye view of the slide shafts 2 and 4, and the shape of the lock portion 6 can be seen. (B) is a top view showing a linear slide part and a lock | rock part. (C) is a right side view showing two trapezoidal structures. (D) is a left side view showing a trapezoidal structure including the lock portion 6. These are the figures explaining the mechanism which incorporates the slide shafts 2 and 4 in the main body shafts 1 and 3. FIG.

DESCRIPTION OF SYMBOLS 1 Basic main body axis | shaft 2 Basic slide axis | shaft 3 Moving main body axis | shaft 4 Moving slide axis | shaft 5 Main body axis | shaft lock part 6 Slide axis | shaft lock part 7 Slide part 8 Lens part 9 Basic main body axis | shaft centerline 10 Basic slide axis | shaft centerline 11 12 Moving slide axis center line 13 Fixed material

Claims (7)

  An extended goniometer characterized in that a slide mechanism is provided on all of the basic axis composed of the basic main body shaft 1 and the basic slide shaft 2 and the moving shaft composed of the movable main body shaft 3 and the movable slide shaft 4.   2. The extended goniometer according to claim 1, wherein the basic slide shaft 2 and the movable slide shaft 4 housed in the basic main body shaft 1 and the movable main body shaft 3 have a structure that cannot be disengaged.   3. The extended goniometer according to claim 2, wherein a mechanical slide shaft 2 and a movable slide shaft 4 are incorporated into the basic main body shaft 1 and the movable main body shaft 3 by utilizing the physical properties of the material.   4. The extended goniometer according to claim 3, wherein a lock mechanism having a braking function is provided on each of the main body shafts 1 and 3 and each of the slide shafts 2 and 4.   5. The extended goniometer according to claim 4, wherein a scale and a number representing the length are provided in the major axis direction of each axis.   6. The extended goniometer according to claim 5, wherein a lens mechanism is provided on the movable body shaft.   7. The extended goniometer according to claim 6, wherein the material of each axis is an organic polymer material, and each axis is colored.

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