CN210301033U

CN210301033U - Patella angle regulator

Info

Publication number: CN210301033U
Application number: CN201920785613.9U
Authority: CN
Inventors: 陈霖; 程良骏; 李正东; 魏宇; 侯杰; 蒋珍珍; 陈伟
Original assignee: First Affiliated Hospital of PLA Military Medical University
Current assignee: First Affiliated Hospital of PLA Military Medical University
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-04-14
Anticipated expiration: 2029-05-28

Abstract

The utility model belongs to the technical field of medical instrument auxiliary devices, and particularly discloses a patella angle adjusting instrument, which comprises a bottom plate, a femur supporting plate and a tibia supporting plate, and further comprises a rotating roller, wherein one end of the femur supporting plate is hinged with the bottom plate, the other end of the femur supporting plate is hinged with the rotating roller, one end of the tibia supporting plate is connected with the bottom plate in a sliding way, and the other end of the tibia supporting plate is hinged with the rotating roller; the adjusting unit is used for changing the angle between the tibia supporting plate and the femur supporting plate; the bottom of the bottom plate is connected with a lifting unit in a sliding way. The utility model discloses the adjustability is big, and application scope is wide to it is more comfortable in the patient use to enable.

Description

Patella angle regulator

Technical Field

The utility model discloses the application belongs to medical instrument auxiliary device's technical field, specifically discloses a patella angular adjustment appearance.

Background

The common degenerative osteoarthropathy and traumatic fracture of knee joint patella need to be checked through routine X-ray photography so as to be treated or operated according to the state of illness, and the patient needs to change different knee bending angles during X-ray photography to comprehensively understand the form and density of each part of the patella, the type of fracture, the relationship between the knee joint and the femur and the like so as to accurately diagnose and determine the treatment or operation scheme.

When the patella of a patient is subjected to X-ray photography in the past, the knee bending angle (generally the knee bending angle ranges from 60 degrees to 90 degrees) is generally determined by visual inspection, and the patient is matched and fixed for photography, so that the accuracy and the standardization are not achieved, and the accurate diagnosis of diseases is influenced.

In order to solve the technical problem, the chinese utility model patent with publication number CN202458412U provides a patella X-ray photography angle frame, including bottom plate, thighbone backup pad and shin bone backup pad, thighbone backup pad one end and shin bone backup pad's one end rotate to be connected, the other end and the bottom plate sliding connection of shin bone backup pad are equipped with the scale mark on the bottom plate. According to the technical scheme, thighs and shanks of patients need to be placed on the femoral support plate and the tibial support plate respectively, and the knee bending angle of the patients can be changed by adjusting the angle between the femoral support plate and the tibial support plate according to marks on the scale marks.

Although the technical scheme can accurately adjust the knee bending angle of the patient, the shot X-ray diagram of the patella can more accurately reflect the illness state of the patient, and can accurately measure related parameters such as the patella groove angle and the fitting angle, and the image quality is relatively high. However, the device in the above technical solution has the following problems:

1. the joint between the femur support frame and the tibia support frame has a certain bending degree, when a patient places thighs and calves on the femur support frame and the tibia support frame respectively, the part of the lower side of the knee joint is contacted with the joint between the femur support frame and the tibia support frame, and the part of the lower side of the knee joint of the patient is extruded at the bending parts of the femur support frame and the tibia support frame due to the bending degree between the femur support frame and the tibia support frame, so that the patient feels pain and discomfort easily, and particularly when the patient has serious illness, the patient can easily get worse;

2. the whole height of the patella X-ray photographing angle frame in the technical scheme can not be adjusted, and the patella X-ray photographing angle frame can not be suitable for patients with different body types and heights.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a patella angular adjustment appearance aims at avoiding patient's knee joint downside to receive the extrusion and causes the patient to feel painful and uncomfortable, can satisfy the patient use of different heights size simultaneously.

In order to achieve the above purpose, the technical scheme of the utility model is that: the patella angle adjusting instrument comprises a bottom plate, a femur supporting plate, a tibia supporting plate and a rotating roller, wherein the longitudinal section of the rotating roller is circular, one end of the femur supporting plate is hinged with the bottom plate, the other end of the femur supporting plate is hinged with the rotating roller, one end of the tibia supporting plate is connected with the bottom plate in a sliding mode, and the other end of the tibia supporting plate is hinged with the rotating roller; the adjusting unit is used for changing the angle between the tibia supporting plate and the femur supporting plate; the bottom of the bottom plate is connected with a lifting unit in a sliding way.

The working principle and the beneficial effects of the technical scheme are as follows:

1. the patella angle adjusting instrument in the technical scheme can quickly and accurately position the knee bending angle of a patient during patella X-ray photography, and a doctor can accurately diagnose and make a correct treatment or operation scheme.

2. With thighbone backup pad and shin bone backup pad all articulated with changeing the roller among this technical scheme, change the roller and not only play the effect of connecting thighbone backup pad and shin bone backup pad, form the structure of buckling when having avoided thighbone backup pad and shin bone backup pad to connect moreover and make patient's knee joint downside receive the extrusion, lead to the patient to feel painful or uncomfortable. However, the longitudinal section of the rotary roller in the technical scheme is circular, so that the rotary roller can adapt to the shape and the structure of the lower part of the knee joint of a patient, the patient feels more comfortable, and the experience feeling is better.

3. According to the technical scheme, the lifting unit is arranged at the bottom of the bottom plate and can slide along the bottom of the bottom plate, on one hand, the lifting unit can change the height of the bottom plate, so that the lifting device can adapt to patients with different heights and body types, such as children and adults, and the application range is enlarged; on the other hand, lift unit sliding connection is in the bottom of bottom plate for lift unit's position can change, and when the angle of thighbone backup pad and shin bone backup pad changed, the patient placed thighs and shank behind thighbone backup pad and shin bone backup pad, and the focus can change, probably leads to whole patella angle adjustment appearance to appear the skew. However, the center of gravity of the whole patella angle adjusting instrument can be balanced by moving the lifting unit, so that a stable supporting effect can be formed on the base plate, and the whole patella adjusting instrument can be kept balanced after the thigh and the shank of a patient are placed on the femur supporting plate and the tibia supporting plate.

Furthermore, the thighbone supporting plate comprises two first supporting frames, a first contact plate is fixedly connected between the two first supporting frames, the shin bone supporting plate comprises two second supporting frames, a second contact plate is fixedly connected between the two second supporting frames, the first supporting frames are hinged to the side wall of the bottom plate, and the second supporting frames are connected with the two sides of the bottom plate in a sliding mode.

Through the lateral wall connection of first support frame and second support frame with the bottom plate among this technical scheme, compare in the upper surface slip with thighbone backup pad and shin bone backup pad along the bottom plate, this technical scheme makes manufacturing more convenient.

Furthermore, the bottom plate both sides have been seted up the spout, and second support frame one end articulates there is the smooth roller, and the second support frame passes through smooth roller and spout sliding connection.

The friction between the second support frame and the bottom plate can be reduced by the arrangement of the sliding rollers, so that the second support frame can slide on two sides of the bottom plate more smoothly.

Further, the upper surfaces of the first contact plate and the second contact plate are both arc-shaped surfaces.

According to the technical scheme, the first contact plate and the second contact plate are arranged to be arc-shaped surfaces, when the patella angle adjusting instrument is used by a patient, the thigh and the shank of the patient are respectively placed behind the first contact plate and the second contact plate, the first contact plate and the second contact plate can be adapted to the shape of the thigh and the shank of the human body, and therefore the patient can feel very comfortable and the legs are also relaxed more.

Furthermore, scale marks are arranged on two sides of the bottom plate.

The scale mark that this technical scheme set up is convenient for the operator to confirm good patient's angle of bending the knee fast and accurately.

Furthermore, a connecting column is fixedly connected to the upper surface of the bottom plate, a femoral connecting rod is arranged between the first contact plate and the connecting column, one end of the femoral connecting rod is hinged to the connecting column, and the other end of the femoral connecting rod is in sliding connection with the first contact plate; set up the shin bone connecting rod between second contact board and the spliced pole, the one end and the spliced pole of shin bone connecting rod are articulated, the other end and the second contact board sliding connection of shin bone connecting rod.

The supporting effect to first contact board and second contact board has been strengthened in setting up of spliced pole, thighbone connecting rod and shin bone connecting rod among this technical scheme, avoids patient's thigh and shank to place respectively and appear supporting unstable condition behind first contact board and second contact board.

Further, the lifting unit comprises a lifting rod and a supporting column, the lifting rod is in threaded connection with the supporting column, and one end, far away from the supporting column, of the lifting rod is in sliding connection with the bottom plate.

According to the technical scheme, the lifting rod is in threaded connection with the supporting column, and the lifting rod is rotated according to the actual conditions of different patients, so that the lifting rod moves upwards or downwards, and the lifting of the bottom plate is realized.

Furthermore, a handle is fixedly connected to one side of the lifting rod.

The setting up of handle makes things convenient for the operator to rotate the lifter, rotates the lifter when needs moreover and makes whole bottom plate go up and down, compares in directly rotating the lifter, makes the lifter rotate more laborsaving through rotating the handle.

Further, the handle is L-shaped.

Compare in being a vertical pole with the handle setting, when being "L" type with the handle setting in this technical scheme, can make the operator great with the area of contact of handle when breaking the handle off with the fingers and thumb, the operator of not only being convenient for snatchs, also more laborsaving when rotating the lifter moreover.

Further, the bottom fixedly connected with brace table of support column, the diameter of brace table is greater than the diameter of support column.

The supporting plate in the technical scheme can enable the whole patella angle adjusting instrument to be stably placed on a sickbed.

Drawings

Fig. 1 is a front view of a first embodiment of the patella angle adjustment instrument of the present invention;

FIG. 2 is a left side view of the base plate of FIG. 1 coupled to a lifting unit;

fig. 3 is a perspective view of a second patella angle adjustment instrument according to an embodiment of the present invention;

fig. 4 is a front view of a third embodiment of the patella angle adjustment device of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a bottom plate 1, a femur supporting plate 2, a first supporting frame 201, a first contact plate 202, a tibia supporting plate 3, a second supporting frame 301, a second contact plate 302, a sliding groove 4, a rotating roller 5, a pneumatic spring 6, a lifting rod 7, a supporting column 8, a supporting table 9, a handle 10, a scale mark 11, a femur connecting rod 12, a tibia connecting rod 13, a connecting column 14, a sliding roller 15 and a supporting rod 16.

Example one

The embodiment is basically as shown in the attached figures 1 and 2: the utility model provides a patella angular adjustment appearance, includes bottom plate 1, changes roller 5, thighbone backup pad 2 and shin bone backup pad 3, changes roller 5 in this embodiment and is cylindricly, and thighbone backup pad 2 and shin bone backup pad 3 are located the both sides of changeing roller 5. One end of the femur supporting plate 2 is hinged with the bottom plate 1, and the other end of the femur supporting plate 2 is hinged with the left side of the rotating roller 5.

Sliding grooves 4 are formed in the front side and the rear side of the bottom plate 1, sliding rollers 15 are hinged to the front side and the rear side of the tibia supporting plate 3, the tibia supporting plate 3 is connected with the sliding grooves 4 in a left-right sliding mode through the sliding rollers 15, and one end, far away from the sliding grooves 4, of the tibia supporting plate 3 is hinged to the right side of the rotating rollers 5.

The bottom plate 1 is also provided with an adjusting unit for changing the angle between the tibia support plate 3 and the femur support plate 2, the adjusting unit is a pneumatic spring 6 in the embodiment, the pneumatic spring 6 is a lockable gas spring with the model of JYK10/27, a top rod is arranged at the end part of a piston rod of the pneumatic spring 6 and pushes the top rod, and a valve in the pneumatic spring 6 is opened to enable gas or oil to circulate, so that the pneumatic spring 6 can be freely extended; when the required position is reached, the ejector rod is released, the internal valve is closed, and the piston rod of the pneumatic spring 6 can be locked. After the position of the pneumatic spring 6 is locked, a large load can be carried by the locking force of the pneumatic spring. The bottom of the pneumatic spring 6 is hinged with the front side of the bottom plate 1, and the piston rod of the pneumatic spring 6 is hinged with the front side of the tibia support plate 3.

1 bottom sliding connection of bottom plate has the lifting unit, lifting unit includes lifter 7 and support column 8 in this embodiment,

lifter

7 and 8 threaded connection of support column, lifter 7 keeps away from the one end of support column 8 and the bottom horizontal sliding connection of bottom plate 1, and lifter 7 still with bottom 1's bottom normal running fit, it is steady in order to make the patella angular adjustment appearance among this technical scheme can place, bolt fixedly connected with brace table 9 is passed through to support column 8's bottom, brace table 9's diameter is greater than the diameter of support column 8, for the convenience of operator rotates lifter 7, there is handle 10 in one side welding of lifter 7, handle 10 is "L" type in this embodiment, the longer one end of handle 10 welds with lifter 7, the shorter one end of handle 10 is unsettled.

The specific implementation process is as follows: when in use, the thigh of a patient is placed on the femur supporting plate 2, and the shank of the patient is placed on the tibia supporting plate 3. The doctor can properly adjust the angle between the tibia support plate 3 and the femur support plate 2 according to the shooting angle. When the angle between the femur supporting plate 2 and the tibia supporting plate 3 needs to be increased, the piston rod of the pneumatic spring 6 extends by opening the valve in the pneumatic spring 6, so that the tibia supporting plate 3 is pushed to slide rightwards, and the angle between the femur supporting plate 2 and the tibia supporting plate 3 is increased; when needs reduce the angle between thighbone backup pad 2 and the shin bone backup pad 3, through applying a pressure left on shin bone backup pad 3, promote the ejector pin simultaneously and make pneumatic spring 6's valve open, thereby make pneumatic spring 6's piston rod shrink, and then make shin bone backup pad 3 slide left, because shin bone backup pad 3 and thighbone backup pad 2 all articulate with commentaries on classics roller 5, and thighbone backup pad 2 still articulates with bottom plate 1, consequently when shin bone backup pad 3 is slided left or right, the inclination of thighbone backup pad 2 can change simultaneously.

When the angle between the femur supporting plate 2 and the tibia supporting plate 3 is determined, the mandril of the pneumatic spring 6 is released, the valve of the pneumatic spring 6 is closed, the position of the piston rod of the pneumatic spring 6 is locked, and therefore the angular positions of the tibia supporting plate 3 and the femur supporting plate 2 are locked. The lifting rod 7 is then slid into place to hold the base plate 1 steady. The height position of the bottom plate 1 is changed by rotating the handle 10 to raise or lower the lifting rod 7 according to the height and size of the patient. Of course, the operation of adjusting the height of the base plate 1 can also precede the operation of adjusting the angle between the femoral support plate 2 and the tibial support plate 3.

Example two

As shown in fig. 3, a patella angle adjusting instrument differs from the first embodiment in that: the femoral support plate 2 comprises two first support frames 201, and a first contact plate 202 is welded between the two first support frames 201. One end of each of the two first supporting frames 201 is hinged with the rotating roller 5, and the other end of each of the two first supporting frames 201 is hinged with the front side and the rear side of the bottom plate 1.

The tibia support plate 3 comprises two second support frames 301, a second contact plate 302 is welded between the two second support frames 301, and the two second support frames 301 are connected with the sliding groove 4 in a left-right sliding mode through the sliding roller 15.

The piston rod of the pneumatic spring 6 is hinged with the second support frame 301 positioned at the front side, and the bottom end of the pneumatic spring 6 is hinged with the front side of the bottom plate 1.

The first contact plate 202 and the second contact plate 302 are both arc-shaped surfaces which are concave downwards, and the arc-shaped surfaces of the first contact plate 202 and the second contact plate 302 should conform to human engineering, that is, the arc-shaped surfaces of the first contact plate 202 and the second contact plate 302 should be suitable for the natural shape of the human body as much as possible, and in this embodiment, the arc-shaped surfaces of the first contact plate 202 and the second contact plate 302 should be adapted to the shape of the thigh and the calf of the human body.

All welded between two first support frames 201 and between two second support frames 301 have branch 16, at the gliding range of first support frame 201 and second support frame 301 (namely the angle range between first support frame 201 and the second support frame 301 is between 30 ~ 90), branch 16 is located the top of bottom plate 1 all the time, avoid hindering the normal slip of second support frame 301 after bottom plate 1 and the contact of branch 16, branch 16 plays the steadiness of strengthening two first support frames 201 and two second support frames 301.

EXAMPLE III

As shown in fig. 4, a patella angle adjusting instrument is different from the second embodiment in that: the front side and the rear side of the bottom plate 1 are respectively provided with the scale marks 11, the arrangement of the scale marks 11 can more conveniently record the adjusted angle information when the angles of the femur supporting plate 2 and the tibia supporting plate 3 are adjusted, and the adjusted angles are more accurate; in addition, a connecting column 14 is fixedly connected to the upper surface of the bottom plate 1 through a bolt, a femur connecting rod 12 is arranged between the first contact plate 202 and the connecting column 14, one end of the femur connecting rod 12 is hinged to the connecting column 14, the other end of the femur connecting rod 12 is connected with the first contact plate 202 in a sliding manner, and the femur connecting rod 12 slides along the length direction of the first contact plate 202; a tibia connecting rod 13 is arranged between the second contact plate 302 and the connecting column 14, one end of the tibia connecting rod 13 is hinged to the connecting column 14, and the other end of the tibia connecting rod 13 is in sliding connection with the second contact plate 302. And the tibia connecting rod 13 slides in the length direction of the second contact plate 302.

When the pneumatic spring 6 slides the second support bracket 301 left and right on both sides of the base plate 1, so as to change the angle between the first support bracket 201 and the second support bracket 301, the femur connecting rod 12 and the tibia connecting rod 13 will slide along the length direction of the first contact plate 202 and the second contact plate 302, respectively, so as to adapt to the angle change of the first support bracket 201 and the second support bracket 301. The connecting column 14, the femur connecting rod 12 and the tibia connecting rod 13 arranged in the embodiment and the pneumatic spring 6 jointly enhance the supporting effect on the first contact plate 202 and the second contact plate 302, the situation that the thigh and the calf of a patient are placed behind the first contact plate 202 and the second contact plate 302 respectively and slide on the second support frame 301 due to the gravity action of the thigh and the calf is avoided, the situation that the leg support of the patient is unstable to cause the shooting angle to be inaccurate is avoided, the pressure of the leg of the patient on the pneumatic spring 6 is also reduced, and the service life of the pneumatic spring 6 can be prolonged.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The patella angle adjusting instrument comprises a base plate, a femur supporting plate and a tibia supporting plate, and is characterized by further comprising a rotating roller, wherein the longitudinal section of the rotating roller is circular, one end of the femur supporting plate is hinged with the base plate, the other end of the femur supporting plate is hinged with the rotating roller, one end of the tibia supporting plate is connected with the base plate in a sliding mode, and the other end of the tibia supporting plate is hinged with the rotating roller; the adjusting unit is used for changing the angle between the tibia supporting plate and the femur supporting plate; the bottom of the bottom plate is connected with a lifting unit in a sliding way.

2. The patellar angle adjustment instrument according to claim 1, wherein the femoral support plate comprises two first support frames, a first contact plate is fixedly connected between the two first support frames, the tibial support plate comprises two second support frames, a second contact plate is fixedly connected between the two second support frames, the first support frames are hinged to the side walls of the base plate, and the second support frames are slidably connected to the two sides of the base plate.

3. The patellar angle adjusting instrument according to claim 2, wherein sliding grooves are formed in two sides of the bottom plate, a sliding roller is hinged to one end of the second support frame, and the second support frame is slidably connected with the sliding grooves through the sliding roller.

4. The patellar angulator of claim 3, wherein the upper surfaces of the first and second contact plates are both arcuate.

5. The patellar angle adjustment instrument according to claim 1, wherein scale lines are provided on both sides of the base plate.

6. The patella angle adjusting instrument according to claim 2, wherein a connection post is fixedly connected to the upper surface of the base plate, a femoral connecting rod is disposed between the first contact plate and the connection post, one end of the femoral connecting rod is hinged to the connection post, and the other end of the femoral connecting rod is slidably connected to the first contact plate; set up the shin bone connecting rod between second contact board and the spliced pole, the one end and the spliced pole of shin bone connecting rod are articulated, the other end and the second contact board sliding connection of shin bone connecting rod.

7. The patellar angle adjuster according to any of claims 1-6, wherein the lifting unit comprises a lifting rod and a supporting post, the lifting rod is in threaded connection with the supporting post, and one end of the lifting rod away from the supporting post is in sliding connection with the bottom plate.

8. The patellar angle adjustment instrument according to claim 7, wherein a support platform is fixedly connected to a bottom end of the support post, and a diameter of the support platform is greater than a diameter of the support post.

9. The patellar angle adjustment instrument according to claim 8, wherein a handle is fixedly connected to one side of the lift lever.

10. The patellar angulator of claim 9, wherein the handle is "L" shaped.