CN213588289U - Knee joint side accessory ligament tension measurer - Google Patents
Knee joint side accessory ligament tension measurer Download PDFInfo
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- CN213588289U CN213588289U CN202021788246.7U CN202021788246U CN213588289U CN 213588289 U CN213588289 U CN 213588289U CN 202021788246 U CN202021788246 U CN 202021788246U CN 213588289 U CN213588289 U CN 213588289U
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- collateral ligament
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Abstract
The utility model discloses a knee joint collateral ligament tension measurer, which belongs to the technical field of medical appliances, and comprises a first connecting rod, a first rotating plate, a second connecting rod and a force application device, wherein the first connecting rod is hinged in sequence, the first rotating plate is contacted with a leg and is placed on one side of a joint, the second rotating plate is contacted with the leg and is placed on the other side of the joint, the force application device enables the first rotating plate and the second rotating plate to rotate around a hinged point, the other ends of the first connecting rod and the second connecting rod are both connected on the force application device in a sliding way, and the force application device is provided with scales for displaying the moving positions; the first rotating plate and the second rotating plate are respectively provided with a fixing belt used for being connected with the leg. The utility model discloses can accurate measurement human collateral ligament torn degree, the application of force size of measurement process is easily controlled, can not cause the secondary injury to patient, also can the accurate judgement state of an illness, and measurement accuracy is high, and low in manufacturing cost is applicable to all measurements to collateral ligament tension.
Description
Technical Field
The utility model belongs to the technical field of medical utensil, a collateral ligament tension caliber is related to, specifically speaking is a knee joint collateral ligament tension caliber.
Background
When people do strenuous exercise, the knee joint can be injured, after the injury, the collateral ligaments on two sides of the joint can be torn, the tension of the collateral ligaments is reduced, the tension is reduced more obviously along with the aggravation of the trauma, and during the treatment, the tearing degree of the collateral ligaments of a patient needs to be accurately confirmed to perform corresponding operations.
In the prior art, when the injury of a patient is confirmed, because no special medical instrument is used for accurately measuring the tension, a doctor can only press a corresponding part by hands to measure whether the tearing degree of the collateral ligament of the patient is mild, moderate or severe, and then the operation is arranged. However, the method has the disadvantages that the doctor has high daily receiving strength and many uncertain factors, can not accurately master the force applied to the legs, can not accurately judge the state of the illness, and can cause secondary damage to the patient if the force is applied too much.
SUMMERY OF THE UTILITY MODEL
For solving the above not enough that exists among the prior art, the utility model aims at providing a knee joint collateral ligament tension caliber to reach the purpose of the tearing degree of accurate measurement human collateral ligament.
In order to achieve the above object, the utility model adopts the following technical scheme:
a knee joint lateral ligamentum paratuberculosis tension measurer comprises a first connecting rod, a first rotating plate, a second connecting rod and a force application device, wherein the first connecting rod is hinged with a leg in sequence, the first rotating plate is in contact with the leg and is placed on one side of a joint, the second rotating plate is in contact with the leg and is placed on the other side of the joint, and the force application device enables the first rotating plate and the second rotating plate to rotate around a hinged point; the other ends of the first connecting rod and the second connecting rod are connected to a force application device in a sliding mode, and scales used for displaying the moving positions of the first connecting rod and the second connecting rod are arranged on the force application device; and fixing belts used for being connected with the leg parts are fixedly arranged on the first rotating plate and the second rotating plate.
As to the utility model limit: the both sides of locating piece all are equipped with the recess, all set firmly on first connecting rod and the second connecting rod and be used for with recess complex arch.
As a further limitation to the present invention: and the fixing belt is provided with a primary and secondary sticky buckle.
As another limitation to the present invention: the force application device comprises a spring fixedly arranged on the first rotating plate or the second rotating plate, a handle connected to the other end of the spring, a positioning block sleeved on the handle and a fixing part used for limiting the moving position of the handle on the positioning block; the first connecting rod and the second connecting rod are connected to the positioning block in a sliding mode, and the scales are arranged on the positioning block.
As to the utility model limit: and a graduated scale for displaying the compression amount of the spring is fixedly arranged outside the spring.
As a further limitation to the present invention: the fixed part is including locating the internal thread in the locating piece and locating on the handle with internal thread complex external screw thread, the spring is connected with the handle rotation.
As a further limitation to the present invention: the fixing part comprises teeth arranged in the positioning block and a tooth socket arranged on the handle and matched with the teeth.
Since the technical scheme is used, compared with the prior art, the utility model, the beneficial effect who gains lies in:
(1) the utility model discloses a mutual hinge joint between first connecting rod, first rotating plate, second rotating plate, the second connecting rod, and first connecting rod and second connecting rod sliding connection are on the locating piece, make it form the quadrangle of mutual hinge joint, force application device is to a pin joint application of force of quadrangle, can change the angle of each interior angle of quadrangle, and change the change of angle into audio-visual removal scale, when measuring patient's collateral ligament degree of tearing, the reading is visual, the application of force is controllable, can accurately learn patient's state of an illness, be convenient for the operation, still be favorable to observing patient's recovery condition, help doctor to the medicine of corresponding illness;
(2) the groove and the bulge of the utility model are matched, the structure is simple, the sliding is rapid, and the manufacturing cost is low;
(3) the primary and secondary thread gluing on the fixing band of the utility model is convenient for the doctor to fix the device with the leg of the patient, which is beneficial to the rapid tightening and loosening of the fixing band, is convenient for adjustment, can adapt to different fat and thin leg shapes, and has strong practicability;
(4) the graduated scale outside the spring of the utility model is convenient for observing the deformation amount of the spring;
(5) the force application device of the utility model applies pressure to the leg part through the spring, so that an included angle is generated between the leg part and the first rotating plate or the second rotating plate, the spring can buffer the pressure to the leg part, and the corresponding deformation and force can be calculated through the self performance of the spring, so that the calculation is convenient, the spring can accurately correspond to the scale on the positioning block, the force application degree is easy to control, secondary injury to the patient caused by excessive force application can be avoided, and the state of illness of the patient can be accurately judged;
(6) the handle and the positioning block of the utility model are connected through the screw thread, the handle and the positioning block can be positioned at any time, the movement amount of a circle of rotation is not very large, and the precision is high;
(7) the utility model discloses a handle and locating piece are through the tooth groove cooperation of zigzag, and the propulsion volume at every turn is little, easily control, and the accuracy is high, and in the locating piece was located to the tooth, can not cause the injury to the user, the security performance height.
To sum up, the utility model discloses can the tearing degree of accurate measurement human collateral ligament, measurement process's application of force size is easily controlled, can not cause the secondary injury to patient, also can the accurate judgement state of an illness, and measurement accuracy is high, and low in manufacturing cost is applicable to all measurements to collateral ligament tension.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic front view of embodiment 1 of the present invention;
fig. 2 is a schematic view of a position structure of the scale 6 according to embodiment 1 of the present invention when installed;
fig. 3 is a schematic view of a connection structure of the first rotating plate 3 and the second rotating plate 4 according to embodiment 1 of the present invention;
fig. 4 is a schematic structural view of the teeth 11 and the tooth spaces 12 according to embodiment 2 of the present invention.
In the figure: 1-a first connecting rod, 2-a second connecting rod, 3-a first rotating plate, 4-a second rotating plate, 5-a force application device, 51-a positioning block, 52-a handle, 53-a spring, 6-a graduated scale, 7-a bearing, 8-a pin shaft, 9-a fixing belt, 10-a rotating shaft, 11-a tooth and 12-a tooth groove.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the knee collateral ligament strain gauges described herein are preferred embodiments, are merely provided to illustrate and explain the present invention, and do not constitute limitations of the present invention.
EXAMPLE 1 Knee Joint collateral ligament tension measurer
In this embodiment, as shown in fig. 1 to 3, a knee joint collateral ligament tension measuring device includes a first connecting rod 1, a first rotating plate 3, a second rotating plate 4, a second connecting rod 2, and a force applying device 5 for rotating the first rotating plate 3 and the second rotating plate 4 around a hinge point. As shown in fig. 3, the first rotating plate 3 and the second rotating plate 4 are both slender plates with widths corresponding to the widths of the legs, and one ends of the slender plates are hinged together through a rotating shaft 10, so that the slender plates and the rotating plates can rotate around the rotating shaft 10. When in use, the first rotating plate 3 and the second rotating plate 4 are respectively arranged at two sides of the joint, and the rotating shaft 10 is positioned at the joint. Force applying device 5 sets up perpendicular to pivot 10, and is located the intermediate position of pivot 10, the equal sliding connection of the other end of first connecting rod 1 and second connecting rod 2 is on force applying device 5. The first connecting rod 1 and the second connecting rod 2 have the same structure, the first rotating plate 3 and the second rotating plate 4 have the same structure, so that the first connecting rod 1, the first rotating plate 3, the second rotating plate 4 and the second connecting rod 2 form a parallelogram with each connecting point being movably hinged, and the parallelogram deforms along the force application device 5 under the force application of the force application device 5.
All set firmly fixed band 9 that is used for being connected with the shank on first rotating plate 3 and the second rotating plate 4, all be equipped with two sets ofly on first rotating plate 3 of this embodiment and the second rotating plate 4, and the interval sets up. The fixing belts 9 are provided with two free ends respectively, and primary and secondary thread gluing which are matched with each other are arranged on the two free ends, so that the first rotating plate 3 and the second rotating plate 4 are fixed with the legs conveniently, and adjustment is facilitated.
The force applying device 5 comprises a spring 53 fixedly arranged on the first rotating plate 3 or the second rotating plate 4, a handle 52 connected to the other end of the spring 53, a positioning block 51 sleeved on the handle 52 and a fixing part for limiting the moving position of the handle 52 on the positioning block 51. In this embodiment, one end of the spring 53 is fixed on the first rotating plate 3 and is perpendicular to the rotating shaft 10. As shown in fig. 2, a graduated scale 6 for displaying the compression amount of the spring 53 is fixedly arranged outside the spring 53, the graduated scale 6 is in a shape of a door, the spring 53 is arranged in the middle of the door-shaped graduated scale 6, and the door-shaped graduated scale 6 is arranged on the spring 53 in a straddling mode.
A through cavity is arranged in the axial direction of the positioning block 51, and the handle 52 passes through the cavity on the positioning block 51 and the upper part of the door-shaped graduated scale 6 and is rotatably connected with one end of the spring 53 which is not connected with the first rotating plate 3. The fixing part of this embodiment is including locating the internal thread on the locating piece 51 inner chamber inner wall and locating on handle 52 with internal thread complex external screw thread, handle 52 is in the inner chamber screw thread normal running fit of locating piece 51, realizes handle 52 to the application of force of spring 53 to can realize handle 52 at any time for the location of locating piece 51, convenient to use. As shown in fig. 1, in order to ensure that the spring 53 does not rotate along with the handle 52, the handle 52 and the spring 53 are rotatably connected by using the bearing 7, that is, the bearing 7 is embedded in the end part where the handle 52 and the spring 53 are connected, one end of the spring 53 connected with the handle 52 is fixedly connected with the pin 8, and the pin 8 is inserted into the bearing 7, so that the handle 52 and the spring 53 are rotatably connected.
The bilateral symmetry of locating piece 51 is equipped with the recess, be equipped with on first connecting rod 1 and the second connecting rod 2 and be used for all setting firmly with the one end of locating piece 51 connection and be used for with recess complex arch, the recess is arranged in to the arch, can slide from top to bottom along the recess and can not break away from the recess, the upper and lower both ends of recess all are equipped with the separation blade, prevent that the arch from droing along the upper and lower both ends of recess. The structure of the groove and the bulge is the prior art and is not described in detail here. The positioning block 51 is provided with scales for displaying the moving positions of the first connecting rod 1 and the second connecting rod 2, and the initial positions of the first connecting rod 1 and the second connecting rod 2 are located at zero scales, so that the change of the positions of the first connecting rod 1 and the second connecting rod 2 can be observed conveniently.
The principle of the embodiment is as follows: the fixing belt 9 of the device is connected with the legs of a person, the first rotating plate 3 and the second rotating plate 4 are tightly attached to the legs to form an angle of 180 degrees, then the handle 52 is rotated to enable the handle 52 to move downwards to apply force to the spring 53, and the spring 53 is compressed and deformed. Because the point of application of force finally acts on the first rotating plate 3, the first rotating plate 3 and the second rotating plate 4 are enabled to rotate upwards under the action of the rotating shaft 10 to form an included angle with the legs of a person, the first connecting rod 1 and the second connecting rod 2 move upwards along the positioning block 51 to generate position change, corresponding to corresponding scales, the change of the angle is calculated according to the change of the scales, the change of the angle is the tearing degree of the collateral ligament, and finally the tearing degree is corresponding to the scale on the positioning block 51 for visual observation.
The size of the application of force to the spring 53 is calculated through the deformation and the elastic modulus of the spring 53, and in order to facilitate the calculation and to enable the scale of the movement of the first connecting rod 1 or the second connecting rod 2 to correspond to the tearing degree of the collateral ligament on the side of the patient, the embodiment provides two sets of data so as to achieve the purpose of accurately corresponding the injury of the patient:
a first group, in which the lengths of the first link 1 and the second link 2 are 100mm, the lengths of the first rotating plate 3 and the second rotating plate 4 are 200mm, the initial height of the positioning block 51 from the rotating shaft 10 is 100mm, the initial height of one end of the handle 52 connected to the spring 53 is 100mm, the elastic modulus of the spring 53 is 210Gpa, and the initial length is 100 mm;
in the second group, the lengths of the first link 1 and the second link 2 are 200mm, the lengths of the first rotating plate 3 and the second rotating plate 4 are 400mm, the initial height of the positioning block 51 from the rotating shaft 10 is 200mm, the initial height of the end of the handle 52 connected with the spring 53 is 200mm, the elastic modulus of the spring 53 is 420Gpa, and the initial length is 200 mm.
In the embodiment, when the scale is changed to 0-5mm, the collateral ligament of the patient is slightly torn; when the scale change is 5-10mm, the collateral ligament of the patient is moderately torn; when the change of the scale is more than 10mm, the collateral ligament of the patient is seriously torn.
EXAMPLE 2 Knee Joint collateral ligament tension measurer
As shown in fig. 4, the structure of the fixing part of the present embodiment is substantially the same as that of embodiment 1, wherein the structure of the fixing part of the present embodiment is different from that of embodiment 1, and the connection manner of the handle 52 and the spring 53 is different. The fixing portion of the present embodiment includes teeth 11 disposed in the positioning block 51 and tooth sockets 12 disposed on the handle 52 and matched with the teeth 11, that is, the teeth 11 are disposed on the left and right sides of the inner wall of the inner cavity of the positioning block 51, the tooth sockets 12 are disposed on the handle 52, and the tooth sockets 12 are a sawtooth-shaped matching structure in the prior art. The handle 52 and spring 53 are engaged in a fixed connection such that the spring 53 is stretched or compressed in response to upward or downward movement of the handle 52.
Claims (7)
1. A knee joint collateral ligament tension caliber which characterized in that: the leg joint comprises a first connecting rod, a first rotating plate, a second connecting rod and a force application device, wherein the first connecting rod is sequentially hinged, the first rotating plate is in contact with a leg and is placed on one side of a joint, the second rotating plate is in contact with the leg and is placed on the other side of the joint, and the force application device enables the first rotating plate and the second rotating plate to rotate around a hinged point; the other ends of the first connecting rod and the second connecting rod are connected to a force application device in a sliding mode, and scales used for displaying the moving positions of the first connecting rod and the second connecting rod are arranged on the force application device; and fixing belts used for being connected with the leg parts are fixedly arranged on the first rotating plate and the second rotating plate.
2. The knee joint collateral ligament tensiometer of claim 1, wherein: the force application device comprises a spring fixedly arranged on the first rotating plate or the second rotating plate, a handle connected to the other end of the spring, a positioning block sleeved on the handle and a fixing part used for limiting the moving position of the handle on the positioning block; the first connecting rod and the second connecting rod are connected to the positioning block in a sliding mode, and the scales are arranged on the positioning block.
3. The knee joint collateral ligament tensiometer of claim 2, wherein: and a graduated scale for displaying the compression amount of the spring is fixedly arranged outside the spring.
4. The knee joint collateral ligament tensiometer of claim 3, wherein: the fixed part is including locating the internal thread in the locating piece and locating on the handle with internal thread complex external screw thread, the spring is connected with the handle rotation.
5. The knee joint collateral ligament tensiometer of claim 3, wherein: the fixing part comprises teeth arranged in the positioning block and a tooth socket arranged on the handle and matched with the teeth.
6. The knee joint collateral ligament tensiometer of claim 2, wherein: the both sides of locating piece all are equipped with the recess, all set firmly on first connecting rod and the second connecting rod and be used for with recess complex arch.
7. The knee joint collateral ligament tensiometer of claim 6, wherein: and the fixing belt is provided with a primary and secondary sticky buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021788246.7U CN213588289U (en) | 2020-08-25 | 2020-08-25 | Knee joint side accessory ligament tension measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021788246.7U CN213588289U (en) | 2020-08-25 | 2020-08-25 | Knee joint side accessory ligament tension measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213588289U true CN213588289U (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021788246.7U Active CN213588289U (en) | 2020-08-25 | 2020-08-25 | Knee joint side accessory ligament tension measurer |
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| Country | Link |
|---|---|
| CN (1) | CN213588289U (en) |
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- 2020-08-25 CN CN202021788246.7U patent/CN213588289U/en active Active
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