TWI505814B - Measuring device for centrodes of knee joint - Google Patents

Description

Knee joint center line measuring device

The invention relates to a knee joint pole line measuring device, in particular to a non-invasive measurement, and no radioactive danger exists, and the precision in the measurement is high, and the measurement result can be obtained immediately, and An innovative designer of the knee joint centerline measuring device that is more practical and effective in its overall application.

Press, the knee joint is the largest joint in the body. It consists of several bones of the thigh bone, the tibia, the tibia and the remaining bone (commonly known as the knee bone), supporting the weight of the human body, the flexion and straightening of the knee. There is a half-month cartilage between the thigh bone and the tibia, which is about 3-9 mm thick. The function of this cartilage is to absorb the impact from the external force and make the knee joint smooth and smooth, which is equivalent to the function of the cushion; There are several ligaments that are responsible for the stability and movement of the knee joint.

The size and movement characteristics of the human knee joint vary from person to person, and will change due to factors such as injury, disease, aging and surgery; knee trauma is the most common One of the sports injuries, from simple walking, jogging, to intense contact sports (such as feet, basketball, judo, etc.), may cause knee injury.

In terms of academics, the polar line (or instantaneous line) is the most effective way to describe the kinematic characteristics of the knee joint; the traditional method of measuring the knee line of the human body, which is a continuous X-ray photograph of the knee joint movement. Then, the center line (or instantaneous line) is measured and calculated from the continuous X-ray photo.

However, the above methods of measuring and calculating the extreme heart line, because the current medical unit does not have the professional equipment for taking continuous X-ray photographs of the knee joint movement, and if the general hospital X-ray photography equipment is used, it is extremely positioned. It is not easy, and it takes dozens of continuous X-ray photos, plus radioactivity, image resolution and accuracy, making this traditional method rarely used.

The reason is that the inventor has been rich in design and development and practical production experience of the relevant industry for many years, and has researched and improved the existing structure to provide a knee joint center line measuring device, in order to achieve better practical value.

The main object of the present invention is to provide a knee joint pole line measuring device, which is mainly non-invasively measured, and has no radioactive danger, and has high precision in measurement, and can obtain measurement results immediately. And in its overall implementation, the use of more practical features.

The main purpose and efficacy of the knee joint center line measuring device of the present invention are as follows The specific technical means is achieved: the main part is provided with a seat part on a base, and a power source is arranged on the base, and a transmission wheel is arranged outside the seat part, and a linkage piece is arranged between the power source and the transmission wheel. The connecting seat is provided with a measuring seat, and the measuring wheel is provided with a driving wheel on the outer side of the measuring seat, so that the driving wheel and the driving wheel are meshed with each other, and the measuring board is connected with the measuring board, and is provided The first angle decoder is coupled to the driving wheel, and the length measuring device is further disposed on the measuring board, and the corresponding length measuring device is also provided with a moving plate on the measuring board, and then the bottom end of the moving board A foot pedal is pivoted, and a second angle decoder is provided at the joint of the moving plate and the foot pedal.

A preferred embodiment of the knee joint centerline measuring device of the present invention, wherein the base is respectively provided with a corresponding left and right transmission wheels on both sides of the seat portion, respectively, for the power source and the left and right transmission wheels Each of the two sides is connected by a linkage member, and a sliding rail is disposed between the left and right transmission wheels at the front end of the seat portion, so that the measuring seat group is disposed on the sliding rail, and the two sides of the measuring socket are respectively Corresponding left driving wheel and right driving wheel are arranged, the measuring board is connected between the left and right driving wheels, and the first angle decoder is connected with the left and right driving wheels to measure the left foot. The measuring seat is slid to the left on the sliding rail to allow the left driving wheel to mesh with the left driving wheel, and when measuring the right foot, the measuring seat is slid to the right side of the sliding rail. Let the right drive wheel mesh with the right drive wheel.

A preferred embodiment of the knee joint centerline measuring device of the present invention, wherein the power source is a stepping motor.

(1)‧‧‧Base

(11) ‧ ‧ seat chair

(111)‧‧‧Slide rails

(2) ‧‧‧Power source

(21)‧‧‧Drive wheel

(211)‧‧‧ linkages

(22)‧‧‧Drive wheel

(221)‧‧‧ linkages

(3)‧‧‧Measurement seat

(31)‧‧‧Drive wheel

(32) ‧‧‧Drive wheel

(33)‧‧‧Measurement board

(34)‧‧‧First angle decoder

(35)‧‧‧ Length measuring device

(36)‧‧‧Mobile board

(37)‧‧‧ pedals

(38)‧‧‧Second angle decoder

First Figure: Schematic diagram of the three-dimensional structure of the present invention

Second figure: schematic diagram of the front view of the present invention

The third figure: the left shift state of the measuring head of the present invention

Fourth: Schematic diagram of the right shift state of the measuring head of the present invention

Figure 5: Schematic diagram of the moving state of the moving board of the present invention

Figure 6: Schematic diagram of the moving state of the moving board of the present invention

Figure 7: Schematic diagram of the use measurement state of the present invention (1)

Figure 8: Schematic diagram of the use measurement state of the present invention (2)

For a more complete and clear disclosure of the technical content, the purpose of the invention and the effects thereof achieved by the present invention, the following is a detailed description, and please refer to the drawings and drawings: First, please refer to 1 is a perspective view of a first embodiment of the present invention and a second view of the present invention. The present invention is mainly provided with a seat portion (11) on a base (1), and is provided on the base (1). There is a power source (2), the power source (2) can be a stepping motor, and a corresponding left transmission wheel (21) and right transmission wheel (22) are respectively disposed on two sides of the seat portion (11), The power source (2) and the left and right transmission wheels (21) and (22) are connected by the linkages (211) and (221), and the front end of the seat portion (11) corresponds to the left and right transmissions. Wheel (21), Between the (22), there is a slide rail (111), and the slide rail (111) is provided with a measuring seat (3), and the two sides of the measuring seat (3) are respectively provided with corresponding left driving wheels (31). And the right driving wheel (32), and the measuring plate (33) is connected between the left and right driving wheels (31), (32), and is provided with a first angle decoder (34) and left and right driving The wheels (31) and (32) are connected to each other, and a length measuring device (35) is additionally disposed on the measuring plate (33), and the corresponding length measuring device (35) is also active on the measuring plate (33). a moving plate (36) is provided, and a foot pedal (37) is pivoted at a bottom end of the moving plate (36), and a second angle is provided at a pivotal joint of the moving plate (36) and the foot pedal (37). Decoder (38).

In this way, the creation of the present invention allows the measurer to sit on the seat portion (11) on the base (1), and when measuring the left foot, the measuring seat (3) Slide the slide to the left on the slide rail (111), so that the left drive wheel (31) of the measuring seat (3) meshes with the left drive wheel (21) of the seat portion (11) (please refer to the third As shown in the schematic diagram of the left shift state of the measuring head of the present invention, when the right foot is to be measured, the measuring seat (3) is slid to the right on the sliding rail (111), and the measuring seat is made. (3) The right driving wheel (32) is engaged with the right driving wheel (22) of the seat portion (11) (please refer to the fourth diagram of the right measuring state of the measuring head of the present invention), and The length of the tester's foot is moved up and down by the measuring plate (33) to adjust the position of the moving plate (36). Please refer to the fifth figure for moving state on the moving plate of the present invention and the sixth figure. The state diagram shows that the measurer can place one foot to be measured on the front end of the measuring board (33), and the foot is stepped on the foot pedal (37), and the power source is operated by the measuring person. (2) via linkages (211), (221) Drive the left and right drive wheels (21), (22) to rotate. At this time, the left drive wheel (31) or the right drive wheel (32) on one side of the measuring foot is the left drive wheel (21) that meshes with it. Or the right drive wheel (22) drives the measuring block (3) to rotate to the same angular position as the seat portion (11) for zeroing (please refer to the seventh figure for the use measurement state diagram of the present invention ( 1) shown, re-operation causes the power source (2) to drive the measuring seat (3) to rotate down to the maximum angle that the measuring person's knee can bend (please refer to the eighth figure for the measurement state of the invention) (b) shown in the figure, the data measured by the first angle decoder (34), the length measuring device (35) and the second angle decoder (38) can be converted in the process, and It can calculate the relevant data of the extreme heart line of the measured knee joint.

From the above, the composition and use of the structure of the present invention show that the present invention is mainly non-invasively measured and compared with the existing structure, and there is no radioactive risk, and the measurement is performed. The precision is high, and the measurement result can be obtained immediately, and the utility model is more effective in its overall application.

However, the above-described embodiments or drawings are not intended to limit the structure or the use of the present invention, and any suitable variations or modifications of the invention will be apparent to those skilled in the art.

In summary, the embodiments of the present invention can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has completely complied with the provisions of the Patent Law. And the request, the application for the invention of a patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.

(1)‧‧‧Base

(11) ‧ ‧ seat chair

(111)‧‧‧Slide rails

(2) ‧‧‧Power source

(21)‧‧‧Drive wheel

(211)‧‧‧ linkages

(22)‧‧‧Drive wheel

(221)‧‧‧ linkages

(3)‧‧‧Measurement seat

(31)‧‧‧Drive wheel

(32) ‧‧‧Drive wheel

(33)‧‧‧Measurement board

(34)‧‧‧First angle decoder

(35)‧‧‧ Length measuring device

(36)‧‧‧Mobile board

(37)‧‧‧ pedals

(38)‧‧‧Second angle decoder

Claims (2)

A knee joint pole line measuring device is mainly provided with a seat portion on a base, and a power source is arranged on the base, and corresponding left drive wheels and right sides are respectively arranged on two sides of the seat portion The driving wheel is connected by the linkage between the power source and the left and right transmission wheels, and the sliding rail is arranged between the left and right transmission wheels at the front end of the seat portion, and the sliding rail is provided with a quantity. a measuring seat, a corresponding left driving wheel and a right driving wheel are respectively arranged on two sides of the measuring seat, and a measuring board is arranged between the left and right driving wheels, and a first angle decoder is arranged with left and right The driving wheel is connected, and a length measuring device is further disposed on the measuring board, and a moving plate is also arranged on the measuring board corresponding to the length measuring device, and a foot pedal is pivoted on the bottom end of the moving board. A second angle decoder is arranged at the joint of the moving plate and the foot pedal. When measuring the left foot, the measuring seat is slid to the left on the sliding rail, and the left driving wheel and the left driving wheel are left. When the right foot is measured, the measuring seat is swept to the right side of the sliding rail, so that the right driving wheel and the right driving wheel are phased. Co. The knee joint centroid measuring device according to claim 1, wherein the power source is a stepping motor.