Shoulder joint internal and external rotation angle measuring device

Abstract

A shoulder joint internal and external rotation angle measuring device relates to the technical field of medical instruments and comprises a base, the top of the base is provided with a first telescopic rod, the telescopic end of the first telescopic rod is fixedly provided with a protractor, the circle center of the protractor is rotatably connected with a pointer through a pin shaft, and the end of the pointer points to the scale position on the protractor. The first telescopic rod is rotatably connected with a hand fixing unit, the hand fixing unit is connected with the end portion of the pin shaft through a third telescopic rod, and the telescopic end portion of the third telescopic rod is hinged to the end portion of the pin shaft. And the internal and external rotation angle change of the shoulder joint is amplified, so that the angle can be measured more accurately, and individualized and accurate medical treatment advocated at present is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially is related to a shoulder joint internal and external rotation angle measuring device. BACKGROUND

[0002] The area difference of shoulder joint head and joint socket is big, and the structural characteristics such as thin and slack joint capsule make it the most flexible in each ball and socket joint of the whole body, can make forward flexion, back extension, internal collection, external spread, rotation and ring transfer movement, also make the shoulder joint become one of the joints most easily injured, when the shoulder joint external spread 90, the active internal rotation angle range of shoulder joint is 0-70, and the active external rotation angle range is 0-90,

[0003] After shoulder joint trauma, especially after the injury of the structure in front of shoulder joint, it is often necessary to formulate treatment scheme in combination with physical examination and auxiliary examination results, at present, in clinic, the physical examination of the patient with the injury of the structure in front of shoulder joint mostly uses fear experiment to evaluate whether the structure in front of shoulder joint is damaged and the severity of damage, and this physical examination method is relatively rough, cannot accurately calculate the active internal and external rotation angle of shoulder joint when the shoulder joint external spread 90, and is not consistent with the individualization and precision medical treatment advocated at present. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a shoulder joint internal and external rotation angle measuring device, which adopts a forearm connecting rod connecting pointer mode, amplifies the internal and external rotation angle change of shoulder joint, thereby more accurately measuring the angle, is consistent with the individualization and precision medical treatment advocated at present, and can effectively solve the problems in the background art.

[0005] In order to realize the utility model purposes, the utility model adopts the following technical solutions:

[0006] A shoulder joint internal and external rotation angle measuring device, comprising a base, a first telescopic rod is installed at the top of the base, a protractor is fixed at the telescopic end of the first telescopic rod, a pointer is rotatably connected with the center of the protractor through a pin shaft, the end of the pointer points to the scale position on the protractor, a hand fixing unit is rotatably connected on the first telescopic rod, the hand fixing unit is connected with the end of the pin shaft through a third telescopic rod, and the telescopic end of the third telescopic rod is hingedly arranged with the end of the pin shaft.

[0007] Further, the base is a metal round cake.

[0008] Further, the hand fixing unit comprises a second telescopic rod and a fixed clamp, two second telescopic rods are arranged, the two second telescopic rods are perpendicularly and connected, two fixed clamps are arranged on each second telescopic rod, the second telescopic rod arranged transversely is rotatably connected with the first telescopic rod, and the second telescopic rod arranged longitudinally is hingedly connected with the third telescopic rod.

[0009] Compared with the prior art, the shoulder joint internal and external rotation angle measuring device has the following advantages: the forearm connecting rod connecting pointer mode is adopted, the change of the shoulder joint internal and external rotation angle is amplified, and the angle is more accurately measured, which meets the individualized and accurate medical treatment. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a three-dimensional structure schematic diagram of the utility model;

[0011] Figure 2 is a three-dimensional side structure schematic diagram of the utility model;

[0012] Figure 3 is the A place of the utility model Figure 2 enlarged structure schematic diagram.

[0013] In the drawing: 1 - base, 2 - first telescopic rod, 3 - protractor, 4 - hand fixing unit, 41 - second telescopic rod, 42 - fixed clamp, 5 - third telescopic rod, 6 - pointer, 7 - pin shaft. DETAILED DESCRIPTION

[0014] The utility model can be explained in detail through the following embodiments, and the purpose of the utility model is to protect all technical improvements within the scope of the utility model.

[0015] Please refer to Figures 1-3 , the embodiment provides a technical scheme: a shoulder joint internal and external rotation angle measuring device, including base 1, the top of base 1 is installed with first telescopic rod 2, the telescopic end of first telescopic rod 2 is fixed with protractor 3, the center of protractor 3 is rotatably connected with pointer 6 through pin shaft 7, the end of pointer 6 points to the scale position on protractor 3, hand fixing unit 4 is rotatably connected on first telescopic rod 2, hand fixing unit 4 is connected with the end of pin shaft 7 through third telescopic rod 5, the telescopic end of third telescopic rod 5 is hingedly arranged with the end of pin shaft 7.

[0016] The base 1 is a metal round cake, the hand fixing unit 4 includes the second telescopic rod 41 and the fixed clamp 42, the second telescopic rod 41 is equipped with two, two second telescopic rods 41 are vertically connected and arranged, two fixed clamps 42 are installed on each second telescopic rod 41, the transversely arranged second telescopic rod 41 is rotationally connected with the first telescopic rod 2, the longitudinally arranged second telescopic rod 41 is hingedly connected with the third telescopic rod 5, the patient first supine position lies on the examination bed, both knee joints are flexed 90 ° to ensure that the waist is close to the bed surface, prevent the waist from arching during the measurement process and affect the measurement accuracy, the base 1 is placed at the patient's acromion position, the first telescopic rod 2 on the base 1 is close to the acromion, when the angle test is carried out, the shoulder joint is abducted 90 °, the elbow joint is flexed 90 °, the fingertip is 0 °, the patient's arm is clamped and fixed through the fixed clamp 42, the patient actively moves the shoulder joint, the doctor reads the active internal and external rotation angle of the shoulder joint when the patient's shoulder joint is abducted 90 ° according to the position of the pointer 6 pointing the angle meter 3, the transversely arranged second telescopic rod 41 is rotationally connected with the first telescopic rod 2, the second telescopic rod 41 drives the pin shaft 7 to rotate through the third telescopic rod 5, the pin shaft 7 drives the pointer 6 to rotate, so that the pointer 6 points to the corresponding scale on the angle meter 3, the clamping position of the fixed clamp 42 is adjusted through the first telescopic rod 2 and the second telescopic rod 41, so as to adapt to people of different body types, the third telescopic rod 5 is adapted to the telescopic adjustment process of the two second telescopic rods 41 through the telescopic effect, in the adjustment process, the third telescopic rod 5 is relatively rotated with the second telescopic rod 41 and the end of the pin shaft 7 through the hinged connection mode, it adopts the forearm connecting rod connection pointer 6 mode, amplifies the change of the internal and external rotation angle of the shoulder joint, so as to more accurately measure the angle, conforms to the individualization and precision medical treatment advocated at present.

[0017] The working principle of the shoulder joint internal and external rotation angle measuring device is as follows: a patient first lies on an examination bed in a supine position, and both knee joints are flexed by 90 degrees to ensure that the waist is close to the bed surface, so as to prevent the waist from being arched during the measurement process and affecting the measurement accuracy; the base 1 is placed at the acromion position of the patient, the first telescopic rod 2 on the base 1 is close to the acromion, when angle testing is performed, the shoulder joint is abducted by 90 degrees, the elbow joint is flexed by 90 degrees, and the fingertip is 0 degrees; the hand of the patient is clamped and fixed by the fixing clamp 42, the patient actively moves the shoulder joint, the doctor reads the active internal and external rotation angle of the shoulder joint of the patient when the shoulder joint is abducted by 90 degrees according to the position of the pointer 6 pointing to the angle gauge 3, the second telescopic rod 41 is rotationally connected between the first telescopic rod 2 and the second telescopic rod 41 arranged transversely, the second telescopic rod 41 drives the pin shaft 7 to rotate through the third telescopic rod 5, the pin shaft 7 drives the pointer 6 to rotate, so that the pointer 6 points to the corresponding scale on the angle gauge 3, the clamping position of the fixing clamp 42 is adjusted through the first telescopic rod 2 and the second telescopic rod 41, so as to adapt to people of different body types, the third telescopic rod 5 is adapted to the telescopic adjustment process of the two second telescopic rods 41 through the telescopic effect, and the third telescopic rod 5 is relatively rotated with the end of the second telescopic rod 41 and the pin shaft 7 through the hinged connection mode during the adjustment process.

[0018] It is worth noting that the components disclosed in the above embodiments are all general standard components or components known by those skilled in the art, the structure and principle of which can be known by the technical personnel through a technical manual or through a conventional experimental method, the clamping part of the fixing clamp 42 is made of a flexible material, such as rubber material, the first telescopic rod 2, the second telescopic rod 41 and the third telescopic rod 5 are all novel telescopic rods, which are hollow cylindrical rods that can be telescoped by rolling metal strips or plastic sheets, and the characteristic is that the metal strips or plastic sheets are pre-shaped into elastic crimping layers with a memory function and smaller than the outer diameter of the rod body, so as to have a self-tightening function, so that the crimping layer always has elastic potential energy to apply pressure to the telescopic rod, and the hinge is connected through a hinge.

[0019] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "link", "fix" and the like terms should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication or the interaction relationship of two elements, unless another definite limitation. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances, for example, rotating connection can be rotating connection through bearing.

[0020] The utility model discloses the part of not detailed is prior art, although the utility model has been specifically shown and introduced in combination with preferred implementation scheme, and the specific implementation this technical scheme method and approach are many, and the above only is the preferred implementation mode of the utility model, but the skilled person in the art should understand that can make various changes to the utility model in form and in details without departing from the spirit and scope of the utility model defined in the appended claims, and all are the protection scope of the utility model.

Claims

1. A device for measuring the internal and external rotation angle of the shoulder joint, comprising a base (1), characterized in that: The top of the base (1) is provided with a first telescopic rod (2), the telescopic end of the first telescopic rod (2) is fixed with a protractor (3), the center of the protractor (3) is rotatably connected with a pointer (6) through a pin shaft (7), the end of the pointer (6) points to the scale position on the protractor (3), the first telescopic rod (2) is rotatably connected with a hand fixing unit (4), the hand fixing unit (4) is connected with the end of the pin shaft (7) through a third telescopic rod (5), the telescopic end of the third telescopic rod (5) is hingedly connected with the end of the pin shaft (7).

2. A device for measuring the internal and external rotation angle of the shoulder joint according to claim 1, characterized in that: The base (1) is a metal round cake.

3. A device for measuring the internal and external rotation angle of the shoulder joint according to claim 1, characterized in that: The hand fixing unit (4) comprises a second telescopic rod (41) and a fixing clamp (42), two second telescopic rods (41) are arranged perpendicularly, two fixing clamps (42) are arranged on each second telescopic rod (41), the horizontally arranged second telescopic rod (41) is rotatably connected with the first telescopic rod (2), and the vertically arranged second telescopic rod (41) is hingedly connected with the third telescopic rod (5).

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