CN215503082U

CN215503082U - Photographic auxiliary device in knee joint stress position

Info

Publication number: CN215503082U
Application number: CN202121339519.4U
Authority: CN
Inventors: 姚克林; 孟延丰; 胡劲松; 俞建伟; 夏国园
Original assignee: Affiliated Hospital of Shaoxing University
Current assignee: Affiliated Hospital of Shaoxing University
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-01-14
Anticipated expiration: 2031-06-16

Abstract

The utility model discloses an auxiliary device for knee joint stress position photography, which comprises a cross rod, wherein a mounting groove is formed in the cross rod, a rotating screw rod is rotatably connected in the mounting groove, two sliding blocks are in threaded connection with the rotating screw rod, a positive thread section and a negative thread section are arranged on the rotating screw rod, one of the sliding blocks is in threaded connection with the positive thread section, the other sliding block is in threaded connection with the negative thread section, extending rods extending out of the cross rod are fixed on the back-facing side surfaces of the two sliding blocks, an arc-shaped plate is fixed at one ends of the extending rods extending out of the cross rod, a binding device is connected on the cross rod, driven bevel gears are fixed on the rotating screw rod, a rotating shaft is rotatably connected on the cross rod, and driving bevel gears meshed with the driven bevel gears are fixed at one ends of the rotating shaft. The utility model has the advantages that the position of the lower leg is everted and limited, the standardized homogenization operation is realized, and the radiation can be prevented from irradiating doctors or family members of patients during X-ray photography.

Description

Photographic auxiliary device in knee joint stress position

Technical Field

The utility model belongs to the technical field of medical auxiliary examination, and particularly relates to an auxiliary device for knee joint stress position photography.

Background

Knee osteoarthritis is the most common part of clinical osteoarthritis, and is typically manifested by joint swelling and pain, flexion and extension limitation, late-stage joint deformity, and the like. During the natural progression of knee osteoarthritis, patients around 1/3 only manifest themselves as medial knee compartment osteoarthritis, with the lateral knee compartment and patellofemoral joints remaining normal and relatively normal. With the deepening of the concept of 'ladder treatment' and 'knee protection', the treatment of knee osteoarthritis gradually steps into staged and individualized treatment, the unicondylar replacement also becomes a preferred scheme for treating the terminal-stage medial compartment osteoarthritis, the unicondylar replacement can retain normal compartments, cruciate ligaments and soft tissues as far as possible, and the problems of large wound and difficult revision of the total knee replacement are solved.

The knee joint photographing is needed before the knee joint unicondylar replacement operation, the accuracy of the placement position of the fixed platform prosthesis is improved through image planning, and the angle variation and deviation of the prosthesis placed on the platform prosthesis are reduced. The internal and external rotation angle (angle A) of the fixed platform femoral prosthesis is the key for placing and placing the prosthesis, and the deviation degree of the fixed platform femoral prosthesis influences the function of the joint after the operation.

On one hand, as the diseased part must be confirmed to be the knee joint medial compartment before the knee joint unicondylar replacement operation, and the ligament structure around the knee joint is complete, the stress position is required to check the function of the medial support ligament; on the other hand, stress position examination requires an orthopedist to manually position and maintain tension to photograph, and X-ray radiation is applied to the stress position examination, so an auxiliary device for knee joint stress position photography is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an auxiliary device for knee joint stress position photography, which can avoid radiation from irradiating doctors or family members of patients during X-ray photography.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a photographic auxiliary device in knee joint stress position, includes the horizontal pole, be equipped with the mounting groove in the horizontal pole, the mounting groove internal rotation is connected with the rotation screw rod, threaded connection has two sliders on the rotation screw rod, be equipped with positive thread section and anti-thread section on the rotation screw rod, one of them slider and positive thread section threaded connection, another slider and anti-thread section threaded connection, two the slider is fixed with the extension rod that extends the horizontal pole to the side of backing away, the extension rod extends the one end of horizontal pole and is fixed with the arc, be connected with on the horizontal pole and tie up the device tightly.

Furthermore, a driven bevel gear is fixed on the rotating screw rod, the driven bevel gear is arranged between the positive thread section and the negative thread section, the cross rod is rotatably connected with a rotating shaft, and a driving bevel gear meshed with the driven bevel gear is fixed at one end of the rotating shaft extending into the mounting groove.

Furthermore, one end of the rotating shaft extending out of the cross rod is fixed with a rotating column, the outer wall of the rotating column is provided with a graduated scale, and the upper side face of the cross rod is provided with an arrow head facing the graduated scale.

Further, the binding device comprises a connecting rope and a binding belt, one end of the connecting rope is fixedly connected with the cross rod, and the other end of the connecting rope is fixedly connected with the binding belt.

Further, the two ends of the binding band are connected through a magic tape.

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

(1) the thigh of a patient is tightened through the tightening device, then the two arc-shaped plates are placed between the shanks, the rotating screw rod is rotated to drive the two arc-shaped plates to move in the opposite directions, the positions of the shanks of the patient are limited by the two arc-shaped plates, and radiation can be prevented from irradiating doctors or family members of the patient during X-ray photography;

(2) the calf position is everted and defined, achieving a standardized homogenization procedure.

Drawings

FIG. 1 is a schematic structural diagram of an auxiliary device for knee joint stress position photography according to the present invention;

fig. 2 is a schematic structural view of the inside of the rail mounting groove.

In the figure: 1. binding a belt; 2. connecting ropes; 3. an arc-shaped plate; 4. an extension rod; 5. a cross bar; 6. rotating the column; 7. a positive thread section; 8. a driven bevel gear; 9. rotating the screw; 10. a drive bevel gear; 11. a slider; 12. mounting grooves; 13. a reverse-threaded segment; 14. a graduated scale; 15. arrows.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution of an auxiliary device for knee joint stress position photography: the utility model provides a photographic auxiliary device of knee joint stress position, including horizontal pole 5, be equipped with mounting groove 12 in the horizontal pole 5, 12 internal rotations in mounting groove are connected with and rotate screw rod 9, it has two sliders 11 to rotate threaded connection on the screw rod 9, be equipped with regular thread section 7 and reverse thread section 13 on the rotation screw rod 9, one of them slider 11 and regular thread section 7 threaded connection, another slider 11 and reverse thread section 13 threaded connection, the side of two sliders 11 dorsad is fixed with extension rod 4 that extends horizontal pole 5, extension rod 4 extends the one end of horizontal pole 5 and is fixed with arc 3, be connected with on the horizontal pole 5 and tie up tight device, it can drive two sliders 11 in opposite directions or reverse movement to rotate screw rod 9 through rotating, thereby drive two arc 3 in opposite directions or reverse movement.

During the use, through binding up the device with patient's thigh, place two arcs 3 between the shank, then rotate and rotate rotation screw 9, drive two arcs 3 antiport, two arcs 3 make things convenient for the X line photograph with the position restriction of patient's shank.

Next, as shown in fig. 2, a driven bevel gear 8 is fixed on the rotating screw 9, the driven bevel gear 8 is arranged between the normal thread section 7 and the reverse thread section 13, the cross bar 5 is rotatably connected with a rotating shaft, and a driving bevel gear 10 engaged with the driven bevel gear 8 is fixed at one end of the rotating shaft extending into the mounting groove 12; the driving bevel gear 10 can be driven to rotate by rotating the rotating shaft, and the driven bevel gear 8 can be driven to rotate by rotating the driving bevel gear 10, so that the rotating screw 9 is driven to rotate, and the operation is very convenient.

As shown in fig. 2, one end of the rotating shaft extending out of the cross rod 5 is fixed with a rotating column 6, a graduated scale 14 is arranged on the outer wall of the rotating column 6, an arrow 15 facing the graduated scale 14 is arranged on the upper side surface of the cross rod 5, and the rotating position of the rotating column 6 can be clearly known by aligning the graduated scale 14 to the arrow 15, so that the position between the two arc-shaped plates 3 can be known.

As shown in fig. 1, the binding device comprises a connecting rope 2 and a binding belt 1, one end of the connecting rope 2 is fixedly connected with a cross rod 5, the other end of the connecting rope is fixedly connected with the binding belt 1, and the two ends of the binding belt 1 are connected by a magic tape.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a photographic auxiliary device of knee joint stress position which characterized in that: the novel telescopic rod comprises a cross rod, be equipped with the mounting groove in the cross rod, the mounting groove internal rotation is connected with rotates the screw rod, threaded connection has two sliders on rotating the screw rod, be equipped with regular thread section and reverse thread section on rotating the screw rod, one of them slider and regular thread section threaded connection, another slider and reverse thread section threaded connection, two the slider is fixed with the extension rod that extends the cross rod to the side of back, the extension rod extends the one end of cross rod and is fixed with the arc, be connected with on the cross rod and tie up tight device.

2. The auxiliary device for knee joint stress position photography according to claim 1, wherein: the rotary screw is fixedly provided with a driven bevel gear, the driven bevel gear is arranged between the normal thread section and the reverse thread section, the cross rod is rotatably connected with a rotating shaft, and one end of the rotating shaft, which extends into the mounting groove, is fixedly provided with a driving bevel gear meshed with the driven bevel gear.

3. The auxiliary device for knee joint stress position photography according to claim 2, wherein: the rotating shaft is fixed with a rotating column at one end extending out of the cross rod, a graduated scale is arranged on the outer wall of the rotating column, and an arrow head facing the graduated scale is arranged on the upper side face of the cross rod.

4. The auxiliary device for knee joint stress position photography according to claim 1, wherein: the binding device comprises a connecting rope and a binding belt, one end of the connecting rope is fixedly connected with the cross rod, and the other end of the connecting rope is fixedly connected with the binding belt.

5. The auxiliary device for knee joint stress position photography according to claim 4, wherein: the two ends of the binding belt are connected through the magic tape.