CN108553116B - Adult forearm rotation force measuring instrument - Google Patents

Abstract

The utility model relates to an adult forearm rotating force measuring instrument, which is provided with a dial body with a cavity inside, wherein two opposite sides of the dial body are provided with round holes which are communicated with the cavity and are provided with bearings on the wall; the outer edge of one hole is provided with an angle mark, the outside of the hole is provided with a handle, the handle is connected with a rotating shaft fixing rod through a connecting rod, the central position of the rotating shaft fixing rod is connected with a rotating shaft, and the rotating shaft is perpendicular to the handle and penetrates through the two bearings; a fan-shaped rotary table is fixed below the rotary table, and the rotary table is perpendicular to the plane where the rotary table is located; the bottom surface of the dial plate main body cavity is also provided with a spring with a balance gasket at the upper end; when the handle is in a vertical state, the upper end face of the balance gasket is tangent to the middle position of the arc-shaped lower edge of the turntable, and the lower end face of the balance gasket is connected to the upper end of the spring. The utility model can conveniently and accurately measure the forearm rotation torque force, and guide and evaluate the recovery of the forearm rotation function after the operation of the patient.

Description

Adult forearm rotation force measuring instrument

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a forearm rotation force measuring instrument for adults.

Background

The rotation function of the human forearm is very important, however, the rotation function of the forearm may be affected due to various causes of lesions on the forearm. Along with the ageing aggravation of the society population, the distal radius fracture of the forearm is increased, and the distal radius fracture operation inevitably influences the rotation function of the forearm, and the rotation angle and the rotation force of the forearm are influenced to different degrees, so that a plurality of inconveniences are brought to the life of a patient.

In order to promote the recovery of the rotation angle and the rotation force of the forearm as much as possible, the patients are generally required to be guided to perform the rehabilitation training of the rotation function of the forearm after the distal radius fracture operation. At present, a device for objectively, accurately and conveniently evaluating the forearm rotation function recovery condition of a patient is lacking clinically.

Patent document CN206372051U, publication day 2017.08.04 discloses a forearm rotation angle measurer, by the bottom plate, restraint strap, the handle, the locating piece, L shape axle, the bearing frame, the pendulum rod, the riser, the rivet, the slider pointer, the screw, the nylon fastener and clamp plate are constituteed, the vertical one end in rectangle bottom plate plane is fixed with the nylon fastener restraint strap, the riser of the arc scale mark is transversely fixed with to the other end, the scale mark corresponds the restraint strap, the screw passes the arc through groove screw nut and fixes two slider pointers on the riser internal plane side by side movable fit, slider pointer points to the scale mark, two bearing frames are fixed at the longitudinal interval in bottom plate plane middle part, L shape axle length end is parallel to pass the bearing frame and points to the riser central lower plane, vertical pendulum rod is inserted in to the vertical standing groove of L shape axle length end, the vertical clearance between the slider is inserted to the pendulum rod other end, L shape axle short end vertically upwards embolias the cylinder handle, L shape axle both sides have movable locating piece location. The utility model has simple structure and convenient use, and can directly read and record the forearm rotation angle measurement value of the patient in real time.

Patent document CN205458696U, bulletin day 2016.08.17, discloses a wrist-clamping forearm rotation activity measuring instrument, comprising a scale disc, a movable disc, a pair of wrist-clamping pads, a pair of telescopic connecting rods, a pair of circular joints, an angle indicating arrow and a circular groove; the circular groove is arranged in the scale disc, the circular connector is arranged on two sides of the movable disc, the movable disc is concentrically arranged in the scale disc, the telescopic connecting rod is connected with the movable disc and the wrist clamping pad, and the angle indication arrow is arranged at the center of the top of the movable disc. The utility model intuitively reflects the rotation movement angle of the forearm by firmly clamping and fixing the wrist joint and then measuring the movement angle of the movable disc on the scale disc, and has the advantages of simple structure, high measurement accuracy, strong clinical practicability, convenient use and simple operation.

However, the device is used for measuring the forearm rotation angle, no instrument for measuring the forearm rotation force of an adult is known at present, and particularly, the measurement result is objective and accurate, the measurement process is simple, convenient and quick, the structure is simple, and the cost is low.

Disclosure of Invention

The utility model aims at overcoming the defects in the prior art and provides an adult forearm rotation force measuring instrument.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the rotary power measuring instrument for the forearm of the adult is provided with a dial body with a cavity inside, two opposite sides of the dial body are respectively provided with a round hole, the wall of which is provided with a bearing, and the holes are communicated with the cavity of the dial body; the outer edge of one hole is provided with an angle mark for indicating the torsion value; the outer edge of the hole with the angle mark is provided with a handle, the upper end and the lower end of the handle are respectively connected with a rotating shaft fixing rod through a connecting rod, the central position of the rotating shaft fixing rod is connected with a rotating shaft, and the rotating shaft is perpendicular to the handle and penetrates through bearings of the two holes; a fan-shaped rotary table is fixed below the rotary shaft, and the rotary shaft is perpendicular to the plane of the rotary table; the bottom surface of the cavity of the dial plate main body is fixed with a spring with a balance gasket at the upper end, when the handle is in a vertical state, the upper end surface of the balance gasket is tangent with the middle position of the arc-shaped lower edge of the turntable, and the lower end surface of the balance gasket is connected with the upper end of the spring.

Preferably, the radius of the turntable in the six-o ' clock direction is 1cm, the radius of the turntable increases by 1mm every 1 DEG in the three-o ' clock or nine-o ' clock direction, and the longest radius of the turntable is 10cm.

Preferably, the periphery of the spring is provided with a spring fixer for surrounding the spring inside, and the spring fixer consists of two 1/3 pipe bodies.

Preferably, the balancing pad comprises a first boss located above and a second boss located below, wherein the first boss and the second boss are both cylindrical, and the bottom area of the first boss is larger than that of the second boss.

Preferably, one end of the rotating shaft fixing rod is provided with an indication arrow, and the vertex of the indication arrow is just positioned on the peripheral line of the hole.

Preferably, the twelve o ' clock direction angle is marked as "0" kg, the three o ' clock direction and the six o ' clock direction angle are both marked as "180" kg, and the minimum scale angle of the angle marks is 1 °.

Preferably, the bottom surface of the dial body is connected to the base.

Preferably, the base is provided with a base fixing hole.

Preferably, the rotating shaft fixing rod is of a cuboid sheet structure and is parallel to the side face of the dial body with the angle marks.

Preferably, the distance between the rotating shaft fixing rod and the side surface of the dial body with the angle mark is 1-2mm.

The utility model provides a device suitable for clinically measuring the forearm rotation function of a patient, which can be used for objectively and accurately measuring the forearm rotation torque force of the patient, evaluating and guiding the recovery of the forearm rotation function of the patient after operation, and making up the blank in the field. The method also specifically comprises the following advantages:

1. the shape and the structural design of the turntable can ensure that the rotation torque of the arm is transmitted from the handle to the spring in an equal ratio, so that the direct reading of the torque value is realized, and the measurement of the rotation function of the forearm is greatly facilitated;

2. the balance gasket can uniformly distribute the force of the turntable acting on the spring, so that the spring can be ensured to be uniformly compressed, and the measurement accuracy is improved;

3. the spring fixer can limit the spring from shaking around after being stressed, ensure the transmission of force in the vertical direction, avoid dispersion and improve the accuracy of a measurement result;

4. the spring fixer consists of two 1/3 pipe bodies, so that the shape of the spring can be conveniently observed from a gap of the spring fixer, the spring can be timely replaced when the spring is deformed, whether the spring is uniformly compressed or not can be conveniently observed and judged in the measuring process, and meanwhile, the shaking of the spring can be limited to the greatest extent;

5. the specific position design, the measuring range and the design of the minimum scale of the angle mark can meet clinical requirements, accurately distinguish the forearm torsion value and facilitate the reading of the numerical value;

6. the base can conveniently fix the adult forearm rotation force measuring instrument on the table top, so that the stability is maintained, on one hand, the overturning of the instrument is prevented, on the other hand, the same reference of multiple measurements is ensured, and the accuracy and the comparability of data are improved;

7. the device has simple integral structure, regular appearance and low cost.

Drawings

Fig. 1 is a schematic structural view of an adult forearm rotation force measuring instrument of the utility model.

Fig. 2 is a schematic view of the internal structure of the dial body.

Fig. 3 is a top view of fig. 2 (only the spindle, turntable, balance pad and spring are shown).

Detailed Description

The following detailed description of the utility model provides specific embodiments with reference to the accompanying drawings.

Reference numerals and components referred to in the drawings are as follows:

1. dial body 2. Base

21. Base fixing hole 3. Hole

4. Angle sign 5. Handle

6. Connecting rod 7. Shaft fixing rod

8. Indication arrow 9. Spindle

10. Turntable 11. Spring

12. Balance pad 121. First boss

122. Second boss 13 spring holder

14. Bearing

Example 1

Referring to fig. 1, fig. 1 is a schematic structural diagram of an adult forearm rotation force measuring apparatus according to the utility model. The adult forearm rotation force measuring instrument is provided with a dial body 1 and a base 2. The dial body 1 is in a cube shape, and a cavity is formed in the dial body; the base 2 is in a flat cuboid shape, and four corner positions are respectively provided with a base fixing hole 21; the bottom surface of the dial body 1 is connected to the base 2. The center of two opposite sides of the dial body 1 is respectively provided with a circular hole 3, the holes 3 are communicated with the cavity of the dial body 1, and the dial bodies except the holes 3 are closed. The wall of the bore 3 is fitted with bearings 14. The outer edge of one hole 3 is provided with an angle mark 4, wherein the angle mark 4 is used for indicating a torsion value, the angle mark in the twelve-o ' clock direction is 0kg, the angle marks in the three-o ' clock direction and the six-o ' clock direction are 180 kg, and the minimum scale angle of the angle mark is 1 DEG and represents 4 kg.

Referring to fig. 2, fig. 2 is a schematic view of the internal structure of the dial body. The outside of the hole 3 with the angle mark at the outer edge is provided with a handle 5, the handle 5 is in a cylinder shape, the upper end and the lower end of the handle 5 are respectively connected with a rotating shaft fixing rod 7 through a connecting rod 6, and a gap is formed between the handle 5 and the rotating shaft fixing rod 7. The rotating shaft fixing rod 7 is of a cuboid sheet structure, is parallel to the side face of the dial body 1 and has a distance of 1-2mm. One end part of the rotating shaft fixing rod 7 is provided with an indication arrow 8, and the vertex of the indication arrow 8 is just positioned on the peripheral line of the hole 3. The center of the rotating shaft fixing rod 7 is connected with the rotating shaft 9, the rotating shaft 9 is perpendicular to the rotating shaft fixing rod 7, and the rotating shaft 9 penetrates through bearings 14 of the two holes 3. A fan-shaped rotary disk 10 is fixed below the rotary shaft 9, and the rotary shaft 9 is perpendicular to the plane of the rotary disk 10. The bottom surface of the dial plate main body 1 cavity is also fixed with a spring 11, and the axial direction of the spring 11 is perpendicular to the bottom surface of the dial plate main body 1. The upper end of the spring 11 is fixed with a balance pad 12, the balance pad 12 comprises a first boss 121 positioned above and a second boss 122 positioned below, the first boss 121 and the second boss 122 are both cylindrical, and the bottom area of the first boss 121 is larger than that of the second boss 122. When the handle 5 is in a vertical state, the upper end face of the first boss 121 is tangent to the center of the arc-shaped lower edge of the turntable 10. The lower end face of the second boss 122 is connected to the upper end of the spring 11.

Referring to fig. 3, fig. 3 is a top view of fig. 2, showing only the spindle, turntable, balance pad and spring. The radius of the turntable 10 in the six-o ' clock direction (namely, the dotted line in fig. 3) is 1cm, and each time 1 DEG is added to the three-o ' clock or nine-o ' clock direction, the radius is increased by 1mm, and the longest radius of the turntable 10 is 10cm. The rotating shaft 9 passes through the midpoint of the chord of the turntable 10.

Referring to fig. 2 again, a spring holder 13 is further provided on the outer periphery of the spring 11, and the lower end of the spring holder 13 is vertically fixed on the bottom surface of the cavity of the dial body 1. The spring holder 13 consists of two 1/3 tubes. The spring holder 13 encloses the spring 11 inside, with a closest distance to the spring of 2-5mm.

The application method of the adult forearm rotation force measuring instrument and the principle thereof are as follows: the inventive measuring instrument for the rotation force of the forearm of the adult is fixed on a horizontal and stable table surface through a base fixing hole 21 on a base 2, for the patient needing to measure the rotation force of the forearm, the patient is seated on a chair with adjustable height, the side surface with an angle mark faces the dial body 1, fingers are inserted into a gap between a handle 5 and a rotating shaft fixing rod 7 so as to grasp the handle 5, the height of the chair is adjusted until the arm is perpendicular to the side surface with the angle mark of the dial body 1, then the rotating arm drives the handle 5 to rotate, the rotating shaft fixing rod 7 synchronously rotates so as to drive the rotating shaft 9 to rotate, the rotating disc 10 is driven by the rotating shaft 9, and as the radius length perpendicular to the bottom surface of the dial body 1 is gradually increased during rotation, the balance pad 12 is pressed to conduct the force of the rotating disc 10 to the spring 11, the spring 11 is compressed, the spring 11 is not rocked forward, backward, leftward and rightward under the limit of the spring 13, the specific force received by the spring 11 can be directly read through the numerical value of the angle mark indicated by the top point of the arrow 8, namely the numerical value of the arm of the patient.

It should be noted that the utility model provides a device suitable for clinically measuring the forearm rotation function of a patient, which can be used for objectively and accurately measuring the forearm rotation torque force of the patient, evaluating the recovery condition of the forearm rotation function of the patient after operation, and making up the blank in the field. The turntable 10 is used for applying pressure to the spring 11, and the shape and the structural design of the turntable 10 can ensure that the rotation torque of the arm is transmitted from the handle to the spring in an equal ratio, so that the direct reading of the torque value is realized, and the measurement of the rotation function of the forearm is greatly facilitated. The angle mark 4 can intuitively reflect the torque value, is designed to be 0kg in the twelve-o ' clock direction, 180 kg in the three-o ' clock direction and 180 kg in the six-o ' clock direction, the torque values of all angles are uniformly distributed, the minimum scale angle is 1 DEG and represents 4 kg, which is obtained by combining with the full clinical working experience of the inventor, and the forearm torque of an adult is about 150kg generally, so that the measuring range can meet clinical requirements, and meanwhile, the forearm torque can be accurately distinguished by the design of the minimum scale, and the numerical reading is convenient. The balancing gasket 12 is used for uniformly distributing the force of the turntable 10 acting on the spring 11, so that the spring 11 can be ensured to be uniformly compressed, and the measurement accuracy is remarkably improved. The balance pad 12 is designed to be composed of a first boss 121 and a second boss 122, the bottom area of the first boss 121 is larger than that of the second boss 122, the first boss 121 with a larger area can prevent deflection between the first boss 121 and the turntable 10, force from the turntable 10 is sensed more accurately, the force is conducted to the second boss 122 in a concentrated mode after the force is sensed by the first boss 121, stable and uniform compression effect is achieved, preferably, the diameter of the second boss 122 is equal to the diameter of a spring, and uniformity of compression of the spring can be guaranteed to the greatest extent. The spring fixer 13 is used for limiting the spring to swing around after being stressed, ensuring the transmission of force in the vertical direction and avoiding dispersion. The reliability of the measurement result of the utility model is further ensured by the design. The spring fixer 13 is designed to be composed of two 1/3 tubes, but not limited to this, but can be designed to be a complete round tube or composed of a plurality of tubes, but the design of this embodiment is convenient to observe the shape of the spring from the gap of the spring fixer 13, so as to replace the spring in time when the spring is deformed, observe and judge whether the spring is uniformly compressed in the measuring process, and limit the shaking of the spring to the greatest extent. The rotating shaft fixing rod is designed into a cuboid sheet structure, is parallel to the side face of the dial body with the angle mark, and has a distance of only 1-2mm, so that the rotating shaft 9 can rotate more stably, and accurate reading is more convenient. The base 2 is convenient for fixing the adult forearm rotation force measuring instrument on a table top, keeps a stable state, prevents the adult forearm rotation force measuring instrument from toppling over on one hand, ensures that the benchmarks of multiple measurements are the same on the other hand, and improves the accuracy and comparability of data. The dial body 1 is not limited to a cube, and may be other shapes as long as it has a flat side surface with a cavity inside. The indicated arrow 8 is more convenient for the doctor to accurately read the value, and the apex of the indicated arrow 8 is preferably located exactly on the peripheral line of the hole 3. The balancing pad 12 may be designed into other shapes, such as a single cylinder, and most basically, the upper end surface and the lower end surface of the balancing pad 12 are ensured to be planar, so that the balancing pad can be respectively and stably contacted with the turntable 10 and the spring 11.

The measuring instrument for the rotation force of the adult forearm has the advantages of ingenious structural design, accurate and reliable data of the rotation force of the measured forearm, convenient operation, simple structure, regular appearance, convenient storage and placement and low cost, and can fully meet clinical requirements.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and additions may be made to those skilled in the art without departing from the method of the present utility model, which modifications and additions are also to be considered as within the scope of the present utility model.

Claims (8)

1. The rotary power measuring instrument for the forearm of the adult is characterized by comprising a dial body with a cavity inside, wherein two opposite sides of the dial body are respectively provided with a round hole with a bearing assembled on the wall, and the holes are communicated with the cavity of the dial body; the outer edge of one hole is provided with an angle mark for indicating the torsion value; the outer edge of the hole with the angle mark is provided with a handle, the upper end and the lower end of the handle are respectively connected with a rotating shaft fixing rod through a connecting rod, the central position of the rotating shaft fixing rod is connected with a rotating shaft, and the rotating shaft is perpendicular to the handle and penetrates through bearings of the two holes; a fan-shaped rotary table is fixed below the rotary shaft, and the rotary shaft is perpendicular to the plane of the rotary table; the bottom surface of the cavity of dial plate main part be fixed with the spring of balanced gasket in upper end, when the handle be in vertical state, balanced gasket's upper end terminal surface is tangent with the centre position of carousel arc lower limb, balanced gasket's lower extreme terminal surface connect the upper end of spring, carousel its radius in six o ' clock direction be 1cm, increase 1mm to every increase 1 degree radius in three o ' clock or nine o ' clock directions, the longest radius of carousel is 10cm, the periphery of spring be equipped with the spring fixer with the spring encircleing inside, the spring fixer constitute by two 1/3 body.

2. The apparatus of claim 1, wherein the balancing pad comprises a first boss above and a second boss below, the first boss and the second boss are each cylindrical, and the bottom area of the first boss is larger than the bottom area of the second boss.

3. The adult forearm rotation strength measuring instrument according to claim 1, wherein one end of the shaft fixing rod is provided with an indication arrow, and the vertex of the indication arrow is located exactly on the peripheral line of the hole.

4. The adult human forearm rotational strength meter of claim 1, wherein the twelve o ' clock direction angle is labeled "0" kg, the three o ' clock and six o ' clock directions angle is labeled "180" kg, and the minimum scale angle of the angle is 1 °.

5. The apparatus of claim 1, wherein the bottom surface of the dial body is attached to the base.

6. The apparatus of claim 5, wherein the base has a base fixing hole.

7. The apparatus of claim 1, wherein the shaft fixing rod is a rectangular sheet structure and is parallel to the side surface of the dial body with the angle mark.

8. The apparatus of claim 7, wherein the distance between the shaft fixing rod and the side of the dial body with the angle mark is 1-2mm.