CN216869365U

CN216869365U - Measurer for measuring acetabulum index on X-ray film

Info

Publication number: CN216869365U
Application number: CN202122761701.5U
Authority: CN
Inventors: 吴德超
Original assignee: Shenzhen Childrens Hospital
Current assignee: Shenzhen Childrens Hospital
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-07-01
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a measurer for measuring acetabulum indexes on an X-ray film, which comprises a straight ruler, a first protractor, a second protractor, a first pointer and a second pointer, wherein the straight ruler is provided with a sliding groove, the sliding groove extends along the length direction of the straight ruler, the bottom edge of the first protractor is in sliding connection with the sliding groove, the bottom edge of the second protractor is in sliding connection with the sliding groove, the first protractor and the second protractor can slide left and right on the sliding groove, the base end of the first pointer is hinged with the central point of the first protractor, the head end of the first pointer is used for pointing to the direction of the first protractor with angle scales, the base end of the second pointer is hinged with the central point of the second protractor, and the head end of the second pointer is used for pointing to the direction of the second protractor with angle scales. The measurer can conveniently and rapidly measure the hip joint related index on the X-ray film, and improves the measurement accuracy.

Description

Measurer for measuring acetabulum index on X-ray film

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a measurer for measuring acetabular index on an X-ray film.

Background

The acetabulum index is an important index for evaluating the development of hip joints of children, and the definition of the acetabulum index is as follows: referring to fig. 3, the lowest points A1 and A2 of the iliac bones of the acetabulum on both sides are determined, a straight line A1A2 is obtained by connecting A1 and A2, then the outermost upper edges of the acetabulum are determined as B1 and B2, and the outermost upper edges of the acetabulum are connected with A1B1 and A2B2, so that an angle B1A1C1 and an angle B2A2C2 are obtained, which are the acetabulum indexes of the right side and the left side respectively. In clinical work, corresponding lines are often drawn on an X-ray film manually, and then relevant angles are measured, wherein due to the fact that the number of operation steps is large, human errors are large. At present, the measuring tool for the acetabulum index is designed by utilizing the ruler and the protractor, but the ruler and the protractor are large in size and difficult to carry, zero scale lines of the protractor are positioned on the buckling of the ruler, the protractor is in a rotatable state, the use is inconvenient, the reading can be carried out only by naked eyes, errors are increased, the measuring result is inaccurate, and the measuring accuracy is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a measurer for measuring acetabulum indexes on an X-ray film, so that hip joint related indexes can be measured on the X-ray film more conveniently and rapidly, and more accurate diagnosis can be obtained; the size of the measuring scale is reduced, the carrying is convenient, the use convenience is improved, and the measuring accuracy is improved.

The purpose of the utility model is realized by adopting the following technical scheme:

the measurer for measuring the acetabulum index on the X-ray film comprises a ruler, a first protractor, a second protractor, a first pointer and a second pointer, wherein the ruler is provided with a sliding groove, the sliding groove extends along the length direction of the ruler, the bottom edge of the first protractor is in sliding connection with the sliding groove, the bottom edge of the second protractor is in sliding connection with the sliding groove, the first protractor and the second protractor can slide left and right on the sliding groove, the base end of the first pointer is hinged to the central point of the first protractor, the head end of the first pointer is used for pointing to the direction in which the first protractor has angle scales, the base end of the second pointer is hinged to the central point of the second protractor, and the head end of the second pointer is used for pointing to the direction in which the second protractor has angle scales.

Further, the base of the first protractor is embedded in the sliding groove through a first buckle, the first buckle is in sliding fit with the sliding groove, the base of the second protractor is embedded in the sliding groove through a second buckle, and the second buckle is in sliding fit with the sliding groove.

Furthermore, the base end of the first pointer is hinged to the center point of the first protractor through a first pin, and the base end of the second pointer is hinged to the center point of the second protractor through a second pin.

Further, the first pointer is overlapped on one surface of the first protractor with the angle scale, and the second pointer is overlapped on one surface of the second protractor with the angle scale.

Furthermore, a first limiting plate is arranged in the middle of the sliding groove, and a second limiting plate and a third limiting plate are respectively arranged at two ends of the sliding groove.

Further, the first protractor and the second protractor are both quarter-circle protractors.

Further, the first protractor and the second protractor are respectively provided with 90 equal scales, and each equal scale is 1 degree and is 90 degrees in total.

Furthermore, the ruler, the first protractor and the second protractor are made of transparent acrylic materials.

Compared with the prior art, the utility model has the beneficial effects that:

when the acetabulum rotation gauge is used, the first protractor and the second protractor slide left and right, the central points of the first protractor and the second protractor are aligned with the lowest point of the ilium on the X-ray film, the first pointer is shifted to enable the upper edge of the first pointer to be aligned with the outer upper edge of the acetabulum, the first pointer is shifted to enable the upper edge of the second pointer to be aligned with the outer upper edge of the acetabulum, and the degrees indicated by the first pointer and the second pointer are read, namely the degrees of the acetabulum angles on the left side and the right side. The measurer can conveniently and quickly measure the hip joint related index on the X-ray film to obtain more accurate diagnosis; the size of the measuring scale is reduced, the carrying is convenient, the use convenience is improved, and the measuring accuracy is improved.

Drawings

FIG. 1 is a schematic view of a measuring device for measuring acetabular index on X-ray film according to the present invention;

FIG. 2 is a second schematic diagram of a measuring device for measuring acetabular index on X-ray film according to the present invention, wherein the first and second pointers are not shown;

FIG. 3 is a schematic representation of an X-ray film provided by the present invention;

in the figure: 1. a straightedge; 11. a chute; 2. a first protractor; 3. a second protractor; 4. a first pointer; 5. and a second pointer.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Corresponding reference numbers are used throughout the drawings for identical or corresponding elements (e.g., elements identified as "1 XX" and "2 XX" are structurally identical and functionally similar).

As shown in fig. 1-3, the measuring device for measuring acetabulum index on an X-ray film provided by the utility model comprises a ruler 1, a first protractor 2, a second protractor 3, a first pointer 4 and a second pointer 5, wherein the ruler 1 is provided with a chute 11, the chute 11 extends along the length direction of the ruler 1, the first protractor 2 and the second protractor 3 are arranged on the side of the ruler 1 corresponding to the chute 11 in a coplanar manner, the bottom edge of the first protractor 2 is slidably connected with the chute 11, the bottom edge of the second protractor 3 is slidably connected with the chute 11, both the first protractor 2 and the second protractor 3 can slide left and right on the chute 11, the base end of the first pointer 4 is hinged to the central point of the first protractor 2, the head end of the first pointer 4 is used for pointing to the direction in which the first protractor 2 has angle scales, the base end of the second pointer 5 is hinged to the center point of the second protractor 3, and the head end of the second pointer 5 is used for pointing to the direction of the angle scale of the second protractor 3.

When the measuring device is used, referring to fig. 3, the first protractor 2 and the second protractor 3 slide left and right to enable the center points of the first protractor 2 and the second protractor 3 to be aligned with the lowest point of the ilium on the X-ray film, namely two points a1 and a2 in fig. 3, then the first pointer 4 and the second pointer 5 are shifted to enable the upper edge of the first pointer 4 to be aligned with a point B1 on the X-ray film, and the upper edge of the second pointer 5 to be aligned with a point B2 on the X-ray film, at this time, the degree indicated by the first pointer 4 is read as the acetabulum index on the left side, and the degree indicated by the second pointer 5 is read as the acetabulum index on the right side. The measurer can measure the hip joint related index on the X-ray film more conveniently and rapidly to obtain more accurate diagnosis; the size of the measuring scale is reduced, the carrying is convenient, the use convenience is improved, and the measuring accuracy is improved.

Preferably, the base of the first protractor 2 is embedded in the sliding groove 11 through a first buckle, the first buckle is in sliding fit with the sliding groove 11, the base of the second protractor 3 is embedded in the sliding groove 11 through a second buckle, and the second buckle is in sliding fit with the sliding groove 11.

Preferably, the base end of the first pointer 4 is hinged with the center point of the first protractor 2 through a first pin, and the base end of the second pointer 5 is hinged with the center point of the second protractor 3 through a second pin.

Specifically, the first pointer 4 is overlapped on a surface of the first protractor 2 with an angle scale, and the second pointer 5 is overlapped on a surface of the second protractor 3 with an angle scale, so that the operation and reading are convenient.

Preferably, a first limiting plate is arranged in the middle of the chute 11, and a second limiting plate and a third limiting plate are respectively arranged at two ends of the chute 11. The first protractor 2 can be kept in a fixed state when moving rightwards to abut against the first limiting plate, and the second protractor 3 can be kept in a fixed state when moving leftwards to abut against the first limiting plate, as shown in fig. 2; the first protractor 2 can keep a fixed state when moving leftwards to abut against the second limit plate; the second protractor 3 can be kept in a fixed state when moving rightwards to abut against the third limit plate, as shown in fig. 1.

Preferably, the first protractor 2 and the second protractor 3 are both quarter circle protractors.

Specifically, the first protractor 2 and the second protractor 3 are respectively provided with 90 equal graduation, and each equal graduation is 1 degree, and the total degree is 90 degrees.

Preferably, the straight ruler 1, the first protractor 2 and the second protractor 3 are made of transparent acrylic materials. This facilitates viewing angle and length.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. The measurer for measuring the acetabulum index on the X-ray film is characterized by comprising a straight ruler, a first protractor, a second protractor, a first pointer and a second pointer, wherein the straight ruler is provided with a sliding groove, the sliding groove extends along the length direction of the straight ruler, the bottom edge of the first protractor is in sliding connection with the sliding groove, the bottom edge of the second protractor is in sliding connection with the sliding groove, the first protractor and the second protractor can slide left and right on the sliding groove, the base end of the first pointer is hinged to the central point of the first protractor, the head end of the first pointer is used for pointing to the direction in which the first protractor has angle scales, the base end of the second pointer is hinged to the central point of the second protractor, and the head end of the second pointer is used for pointing to the direction in which the second protractor has angle scales.

2. The measuring instrument according to claim 1, wherein the bottom edge of the first protractor is engaged with the sliding groove by a first engaging member, and the bottom edge of the second protractor is engaged with the sliding groove by a second engaging member.

3. The gauge for measuring acetabular index on an X-ray film of claim 1, wherein the base end of the first pointer is hinged to the center point of the first protractor by a first pin, and the base end of the second pointer is hinged to the center point of the second protractor by a second pin.

4. The gauge of claim 3, wherein the first pointer is superimposed on a surface of the first protractor having an angular scale, and the second pointer is superimposed on a surface of the second protractor having an angular scale.

5. The measuring device according to claim 1, wherein a first limiting plate is disposed in the middle of the sliding groove, and a second limiting plate and a third limiting plate are disposed at two ends of the sliding groove.

6. The gauge for measuring acetabular index on an X-ray film of claim 1, wherein the first and second protractors are quarter circle protractors.

7. The gauge of claim 6, wherein the first protractor and the second protractor each have 90 graduated scales, each graduated scale being 1 degree and 90 degrees.

8. The socket index measurer according to claim 1, wherein the straight ruler, the first protractor and the second protractor are made of transparent acrylic material.