CN106580331B - Ligament of hip joint tensity measuring instrument - Google Patents

Abstract

The invention discloses a hip joint ligament tension measuring instrument, which adopts a supine test posture, avoids joint angle displacement during the test process, and ensures the consistency of multiple push and pull forces. The technical proposal is as follows: A support board in prone position; a baffle board is fixed at one end of the support board and keeps an angle of 90 degrees with the support board, and the baffle board is used to make the subject's knee joint bend at 90 degrees; on the support board A movable board that can rotate perpendicular to the body is installed on one side. The movable board is equipped with a fixed unit that can fix the subject's knee joint to bend at 90 degrees, and the movable board is equipped with a push-pull force gauge; when the subject's knee joint passes through When the resisting plate is bent at 90 degrees, remove the resisting plate, use the fixing unit to keep the subject’s knee joint at 90 degrees, apply a push-pull action to the push-pull dynamometer, and the movable plate drives the subject’s femur around The hip joint is rotated while the angular displacement of the hip joint is determined with a measuring device.

Description

hip ligament tension gauge

technical field

The invention relates to a hip joint ligament tension measuring instrument.

Background technique

The current measurement method for the tension of hip ligaments is relatively simple and primitive. Most of the subjects are sitting and standing, and the measurement is carried out with a protractor. The method of sitting and standing of the subject makes the measurement of the hip joint at 90 degrees. The measurement result of this method is inaccurate; in addition, due to the lack of standardized standards in these diagnostic methods, it is easy to be affected by the magnitude of the applied force during the measurement process. Different results lead to inaccurate measurement results, poor measurement repeatability, and it is difficult to accurately quantify the tension of hip ligaments, which is not suitable for the needs of modern scientific research.

Contents of the invention

To address the shortcomings of the prior art, the present invention provides a hip joint ligament tension measuring instrument, which adopts a supine test posture, avoids joint angle displacement during the test process, and ensures the consistency of multiple push and pull forces.

Technical scheme of the present invention is:

A hip joint ligament tension measuring instrument: including a support board for a subject to lie prone; a resistance board is fixed at one end of the support board and keeps an angle of 90 degrees with the support board, and the resistance board is used to make the subject The knee joint of the test subject is bent at 90 degrees; a movable board that can rotate perpendicular to the body direction is installed on one side of the support board, and the movable board is provided with a fixed unit that can fix the knee joint of the subject to bend at 90 degrees, and the movable board The board is equipped with a push-pull dynamometer; when the subject's knee joint is bent at 90 degrees by the resisting board, the resisting board is removed, and the subject's knee joint is kept at 90 degrees by using the fixing unit, and the push-pull The dynamometer applies a push-pull motion, the movable plate drives the subject's femur to rotate around the hip joint, and a measuring device measures the angular displacement of the hip joint.

Further, the fixing unit includes a first fixing part and a second fixing part which are fixedly connected to the movable plate, and are respectively used to fix the side of the subject's knee joint close to the calf and the side of the knee joint close to the thigh. The beneficial effect is that the fixing method is simple, firm and effective, convenient to use, and prevents the angle of the knee joint from changing during the rotation of the movable plate.

Further, the first fixing part and the second fixing part use ropes, and the movable plate is provided with a through hole for a rope, and the leading side edge of the through hole for a rope has a locking structure, so that the rope can freely pass through the through hole for a rope. The leading-in side of the rope is penetrated and passed out from the leading-out side, and the rope is locked by using the force; the beneficial effect is that the bending angle of the knee joint can be further fixed. During the test, the angle is not easy to change, ensuring that all The rotation angle of the movable plate is synchronously consistent with the rotation angle of the femur, so the test result is more accurate.

Further, one end of the support plate is provided with a plurality of notch openings, and the resisting plate includes a convex part fitting the plurality of notch openings; the beneficial effect is that the resisting plate can be firmly fixed on the supporting plate , the 90-degree angle between the two will not change arbitrarily, and the resisting plate can be disassembled freely.

Further, a hollow part is opened in the support plate for placing the baffle plate; the beneficial effect is that after the measuring instrument is used, the baffle plate can be placed in the support plate, which occupies a small area and is convenient for storage ,easy to use.

Further, the movable plate is provided with a vertical track, and both sides of the vertical track are provided with locking structures that can move along the track. The push-pull force gauge can move freely in the vertical track, and the push-pull force gauge passes through the locking structure. It can be fixed at a certain position on the vertical track and applied with push-pull action; its beneficial effect is that the horizontal height of the push-pull force gauge on the movable plate can be changed arbitrarily, and the torque can be changed. Since the leg lengths of different subjects are different, different The subject changes the position where the force is applied on the push-pull dynamometer.

Further, the movable plate is mounted on the supporting plate through a connecting shaft, one end of the connecting shaft is connected to the movable plate, and the other end is movably connected to the supporting plate.

Further, the activity is installed on the support plate through a hinge, one end of the hinge is connected to the activity plate, and the other end is movably connected to the support plate.

Further, the measuring device adopts an electronic protractor, the measuring arm of the electronic protractor is fixed on the movable plate, and moves synchronously with the movable plate, and the fixed arm of the electronic protractor is perpendicular to the ground; its beneficial effect is: on the one hand, when passing through the movable plate When rotating the femur, the rotation angle of the femur can be judged directly according to the rotation angle of the movable plate, and the judgment is fast and accurate; on the other hand, the rotation angle of the femur connected to the hip joint can be continuously recorded. When changing, the size of the force that the hip joint bears.

Further, both sides of the support board have connectors on which the movable board can be installed. After the subject has measured one hip joint, the movable board can be removed and installed on the other side to measure the hip joint on the other side. tension.

Compared with prior art, the beneficial effect of the present invention is:

In the present invention, the subject is in a prone position to measure the tension of the hip joint. Such a setting is better than making the test subject be in a sitting posture. The reason is that when the subject is in a sitting position, the hip joint is at 90 degrees and cannot Accurately obtain the degree of tension of the subject's hip joints, and the joint angles of the previous method will change during the test because each part is not fixed; secondly, the present invention adopts the combination of the resisting plate and the movable plate, which can be based on Push-Pull measures the amount of external force applied to determine the angle at which the joint's range of motion stops.

The fixed unit is used to fix the limbs connected by the knee joint. The fixing method is simple, firm and effective, and easy to use. It can prevent the angle of the knee joint from changing during the rotation of the knee joint with the movable plate; The femur can be rotated more accurately, and the rotation angle of the movable plate can be synchronized with the rotation angle of the femur.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application, and do not constitute improper limitations to the present application.

Fig. 1 is a structural schematic diagram of the present invention.

Detailed ways

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

As introduced in the background technology, in order to solve the above technical problems, the present application proposes a hip joint ligament tension measuring instrument.

Embodiment 1: As shown in Figure 1, a kind of hip joint ligament tension measuring instrument: comprise a support plate for the subject to lie prone; A baffle plate is fixed on one end of the support plate and maintains an angle with the support plate 90 degrees, the resisting board is used to make the subject's knee joint bend 90 degrees; a movable board that can rotate along the direction perpendicular to the body is installed on one side of the support board, and the movable board is provided with a device that can fix the subject's knee joint. A fixed unit that is bent at 90 degrees, and the movable plate is equipped with a push-pull force gauge; when the subject’s knee joint is bent at 90 degrees through the resisting plate, the resisting plate is removed, and the subject’s The knee joint is kept at 90 degrees, and a push-pull action is applied to the push-pull dynamometer, the movable plate drives the subject's femur to rotate around the hip joint, and a measuring device is used to measure the angular displacement of the hip joint.

In the present invention, the subject is in a prone position to measure the tension of the hip joint. Such a setting is better than making the test subject be in a sitting posture. The reason is that when the subject is in a sitting position, the hip joint is at 90 degrees and cannot Accurately obtain the degree of tension of the subject's hip joints, and the joint angles of the previous method will change during the test because each part is not fixed; secondly, the present invention adopts the combination of the resisting plate and the movable plate, which can be based on Push-Pull measures the amount of external force applied to determine the angle at which the joint's range of motion stops.

Embodiment 2: The fixed unit in the above-mentioned movable board can be divided into a plurality of fixed parts, for example, two fixed parts are used, the first fixed part is stuck at the joint between the knee joint and the calf, and the second fixed part is stuck at the joint between the knee joint and the thigh. This setting can fix the subject's knee joint to bend at 90 degrees, and prevent the knee joint from changing with the movable plate. When using this measuring instrument to measure, not only can the femur be rotated quickly and effectively, but also It can ensure that the rotation angle of the movable plate is synchronized with the rotation angle of the femur.

Embodiment 3:: the fixing unit in the above-mentioned movable board can adopt the first fixed part and the second fixed part with rope as tool, and the movable board is provided with the through hole for the rope that rope shuttles back and forth freely, between knee joint and shank Tie the first rope at the joint, and tie the second rope at the joint between the knee joint and the thigh. After tightening, you can put the two ends of the rope through the entrance of the through hole for the rope, and then pass it out from the exit. The edge of the lead-out side of the hole has a locking structure, and the locking structure can be a ring-shaped structure or a protrusion that is smaller than the diameter of the through-hole for the rope. When the rope passes through the lead-out side, use the tension to tighten the rope, so that the rope can be locked. state.

The beneficial effect is that the bending angle of the knee joint can be further fixed, and the angle is not easy to change during the test, so that the rotation angle of the movable plate is synchronized with the rotation angle of the femur, so that the test result is more accurate.

Embodiment 4: A plurality of notches are opened at one end of the above-mentioned support plate, and one side of the resisting plate has a convex part that can fit the plurality of notches. The beneficial effect is that the resisting plate can be firmly fixed on the supporting plate, the 90-degree included angle between the two will not change arbitrarily, and the resisting plate can be disassembled freely.

Embodiment 5: There is a hollow part in the above-mentioned supporting plate, which can accommodate the resisting plate. After the measuring instrument is used, the resisting plate can be placed in the supporting plate, which occupies a small area and is convenient for storage and use. , so that the overall structure of the hip joint tension measuring instrument of the present invention is compact and saves space.

Embodiment 6: In the above-mentioned measuring instrument, the track is vertically arranged in the middle part of the movable plate, and both sides of the vertical track are provided with locking structures, and the locking structures can move up and down along the sides of the track, and the push-pull force gauge can It slides freely up and down in the track. When it is necessary to measure at a certain position, the locking structure can be moved to that position, and the push-pull force gauge can be fixed there, and then the push-pull action can be performed to complete the measurement. Its beneficial effect is that the horizontal height of the push-pull dynamometer on the movable plate can be changed arbitrarily, and the torque can be changed. Since different subjects have different leg lengths, it is necessary to change the force application position of the push-pull dynamometer for different subjects. Using this implementation For example, this problem can be well solved.

Embodiment 7, at the joint between the movable plate and the support plate, a connecting shaft is used to fix it, one end of the connecting shaft is connected to the movable plate, and the other end is movably connected to the support plate; One end is connected with the movable plate, and the other end is movably connected with the support plate.

Embodiment 8, in the above-mentioned measuring instrument, both sides of the support plate have connectors on which the movable plate can be installed. After the subject has measured one hip joint, the movable plate can be removed and installed on the other side to measure Tension in the opposite hip.

Embodiment 9, in the above measuring instrument, an electronic protractor is selected as the measuring device, the measuring arm of the electronic protractor is fixed on the movable plate, and moves synchronously with the movable plate, and the fixed arm of the electronic protractor is perpendicular to the ground. Its beneficial effects are: on the one hand, when the femur is rotated through the movable plate, the rotation angle of the femur can be judged directly according to the rotation angle of the movable plate, and the judgment is fast and accurate; on the other hand, the rotation angle of the femur connected with the hip joint can be continuously recorded, combined with The push-pull dynamometer can measure the magnitude of the force on the hip joint when the rotation angle of the femur changes continuously.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims (10)

1. a kind of ligament of hip joint tensity measuring instrument, it is characterised in that：Including the support plate for subject's prostrate；One keeps out It is 90 degree that plate, which is fixed on one end of support plate and the angle between holding and support plate, keeps out plate for making the knee joint of subject In 90 degree of bendings；In the support plate side, installation can be provided with along the movable plate rotated perpendicular to body direction, movable plate The fixed cell that subject's knee joint is in 90 degree of bendings can be fixed, and movable plate is equipped with pull and push dynamometer；When the knee of subject closes When section keeps out plate 90 degree of bendings of presentation described in, plate will be kept out and unloaded, protect subject's knee joint using the fixed cell 90 degree are held, applies push pull maneuver to the pull and push dynamometer, movable plate drives the femur of subject to be rotated around hip joint, together Shi Caiyong measuring devices measure the angular shift of hip joint.

2. a kind of ligament of hip joint tensity measuring instrument according to claim 1, it is characterised in that：The fixed cell packet The first fixed part and the second fixed part being fixedly connected on the movable plate are included, the knee joint for being respectively used to fixed subject leans on Nearly shank side is with knee joint close to thigh side.

3. a kind of ligament of hip joint tensity measuring instrument according to claim 2, it is characterised in that：First fixed part With the second fixed part using restricting, the movable plate is equipped with rope through-hole, and the extraction lateral edges of rope through-hole have fastener structure, rope It can be penetrated, and be pierced by from outlet side from the introducing side of rope through-hole freely, rope be made to be in locking state by using active force.

4. a kind of ligament of hip joint tensity measuring instrument according to claim 1, it is characterised in that：The one of the support plate End offers multiple groove ports, and the plate of keeping out includes being fitted into the male part of the multiple groove port.

5. a kind of ligament of hip joint tensity measuring instrument according to claim 1, it is characterised in that：It is opened in the support plate Equipped with hollow portion, described plate is kept out for placing.

6. a kind of ligament of hip joint tensity measuring instrument according to claim 1, it is characterised in that：The movable plate is equipped with Vertical rail, vertical rail both sides are equipped with the fastener structure of track-movable, and the pull and push dynamometer can be in vertical rail It moves freely, pull and push dynamometer is securable to a certain position of the vertical rail by fastener structure, is applied in push pull maneuver.

7. a kind of ligament of hip joint tensity measuring instrument according to claim 1, it is characterised in that：The movable plate passes through Connecting shaft is mounted in the support plate, and one end of connecting shaft is connect with the movable plate, the other end and the support plate activity Connection.

8. a kind of ligament of hip joint tensity measuring instrument according to claim 1, it is characterised in that：The movable plate passes through Folding is mounted in the support plate, and one end of folding is connect with the movable plate, and the other end is flexibly connected with the support plate.

9. a kind of ligament of hip joint tensity measuring instrument according to claim 1, it is characterised in that：The measuring device is adopted With electronic angle gauge, the measuring arm of electronic angle gauge is fixed on the movable plate, is synchronized with the movement with movable plate, electronic angle gauge Fixed arm perpendicular to ground.

10. a kind of ligament of hip joint tensity measuring instrument according to claim 1, it is characterised in that：The support plate two Side be respectively provided with can installation activity plate connector.