CN213371932U - Joint soft tissue balance measuring device - Google Patents

Abstract

The utility model provides a balanced measuring device of joint soft tissue, include: the base body comprises a main body and a placing platform arranged on the main body, wherein the side wall of the main body is provided with a first scale mark, and the main body is provided with a reference rod extending along a preset direction; the moving piece is movably arranged in the main body in a penetrating mode, and a second scale mark and a first indicating structure matched with the first scale mark are arranged on the side wall of the moving piece; the swinging piece is arranged on the moving piece in a penetrating mode in a swinging mode and located above the placing platform, the swinging piece comprises a swinging body and a second indicating structure, and the second indicating structure is arranged on the swinging body and matched with the second scale mark; the driving piece drives the moving piece to move up and down. The technical scheme of the application effectively solves the problem that the detection precision is not high due to the use of the gap measuring block in the related technology.

Description

Joint soft tissue balance measuring device

Technical Field

The utility model relates to an orthopedic medical instrument field particularly, relates to a joint soft tissue balance measuring device.

Background

Along with the wide application and the continuous development of the artificial knee joint replacement, the requirement of doctors on the accuracy of the joint replacement surgery process is higher and higher, so that the success rate of the artificial joint replacement is improved, the surgery risk is reduced, the rehabilitation index of patients is improved, and the surgery experience is improved. This not only requires the surgical tools for artificial joint replacement to be manufactured precisely; the design concept of the surgical tool for the artificial joint replacement surgery is advanced, and more accurate information can be fed back to the doctor, so that the doctor can make accurate judgment and the success of the surgery is guaranteed.

In the artificial knee joint replacement operation, in order to ensure that the artificial joint is smoothly placed on the knee joint of a patient, a doctor firstly cuts the joint surface of the patient so as to ensure that the artificial knee joint is tightly and firmly attached to the bone of the patient.

However, in the related art artificial knee joint replacement surgery technique, knee joint osteotomy is generally performed by an equivalent osteotomy method: using surgical instruments, medical personnel cut off bone at the distal end of the femoral condyle according to a preset knee joint valgus angle and a preset osteotomy distance; and cutting off the bone of the femoral condyle postcondylar bone according to a preset external rotation angle of the knee joint. However, when equal amount of osteotomy is performed, the gap between osteotomies may be uneven due to the force applied to the knee joint by the ligament, muscle tissue, joint capsule and other human tissues attached and wrapped around the knee joint, and the internal and external soft tissues are unbalanced in force after the artificial joint is installed, resulting in postoperative pain and long-term prosthesis loosening. May result in delayed or still painful recovery of the patient, shortened service life of the artificial joint, and in severe cases, failure of the operation requiring re-operative treatment.

Medical personnel use a preset knee joint valgus angle to cut off the distal bone of the femoral condyle, then use a preset knee joint external rotation angle to cut off the posterior condyle of the femoral condyle and other bones, finally insert a fixed gap measuring block in the osteotomy gap, and detect the osteotomy distance and the stress of the tissues around the knee joint. The detection mode has no accurate result display, and the detection precision is not high by subjective judgment depending on the hand feeling of a doctor.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a joint soft tissue balance measuring device to solve the problem that the use gap measuring block in the correlation technique makes the detection precision not high.

In order to achieve the above object, the utility model provides a balanced measuring device of joint soft tissue, include: the base body comprises a main body and a placing platform arranged on the main body, wherein the side wall of the main body is provided with a first scale mark, and the main body is provided with a reference rod extending along a preset direction; the moving piece is movably arranged in the main body in a penetrating mode, and a second scale mark and a first indicating structure matched with the first scale mark are arranged on the side wall of the moving piece; the swinging piece is arranged on the moving piece in a penetrating mode in a swinging mode and located above the placing platform, the swinging piece comprises a swinging body and a second indicating structure, and the second indicating structure is arranged on the swinging body and matched with the second scale mark; the driving piece drives the moving piece to move up and down.

Further, a through hole is formed in the main body, and the reference rod is detachably arranged in the through hole in a penetrating mode.

Further, still be provided with first mounting hole and with the logical groove of first mounting hole intercommunication in the main part, the axis of first mounting hole is on a parallel with the axis of perforating hole, the moving member is including removing the body and setting up the supporting part on removing the body, remove the movably first mounting hole of wearing to locate of body, first instruction structure sets up in removing the body and is located logical inslot, the supporting part is worn to locate by a part of swing body, be provided with the scale plate on the lateral wall of supporting part, the second scale mark sets up on the scale plate.

Further, still be provided with the second mounting hole with first mounting hole intercommunication in the main part, the axis of second mounting hole sets up with the axis of first mounting hole is perpendicular, and the second mounting hole is worn to locate by the driving piece, and the driving piece passes through the drive of transmission structure and removes the body and remove.

Further, be provided with mounting groove and third mounting hole on the lateral wall of main part, mounting groove and third mounting hole intercommunication, third mounting hole and first mounting hole intercommunication, joint soft tissue balance measuring device still includes locking structure, and mounting groove and third mounting hole are worn to locate by locking structure, and the body can be locked to a part of locking structure.

Further, the locking structure comprises a force application piece and a locking piece, the force application piece is pivotally arranged in the mounting groove, the locking piece is movably arranged in the third mounting hole, the locking piece and the transmission structure are respectively located on two sides of the movable body, and the force application piece applies force to the locking piece, so that the locking piece can lock the movable body.

Further, the locking piece and the removal body between be provided with the tooth structure, the tooth structure including the cooperation tooth and with cooperation tooth butt complex locking tooth, the cooperation tooth includes a plurality of tooth portions, one setting in cooperation tooth and the locking tooth is on removing the body, another setting is on the locking piece, when locking tooth and different tooth portion cooperations, removes the body and is in different latched positions for the locking piece.

Furthermore, the locking structure further comprises an elastic piece arranged in the mounting groove, and two ends of the elastic piece are respectively abutted against the groove bottom of the mounting groove and the force application piece.

Further, the joint soft tissue balance measuring device also comprises a filling block arranged on the swinging body.

Further, the joint soft tissue balance measuring device also comprises a torque wrench driving the driving piece to rotate, the torque wrench comprises an indicating disc, and the distance between two adjacent scales on the indicating disc is marked as 10N.

Use the technical scheme of the utility model, joint soft tissue balance measuring device includes: the device comprises a base body, a moving piece, a swinging piece and a driving piece. The base body comprises a main body and a placing platform arranged on the main body. The side wall of the main body is provided with first scale marks, and the main body is provided with a reference rod extending along a preset direction. The main part is worn to locate by the movable piece is movably, is provided with the second scale mark on the lateral wall of movable piece and with the first instruction structure of first scale mark complex. The swinging piece can be arranged on the moving piece in a penetrating mode in a swinging mode and is located above the placing platform. The swinging piece comprises a swinging body and a second indicating structure, and the second indicating structure is arranged on the swinging body and matched with the second scale marks. The driving piece drives the moving piece to move up and down. And placing the placing platform and the swinging piece into an osteotomy gap when the knee joint is in the extension position, measuring whether the central axis of the placing platform is aligned with the lower limb force line by using the reference rod, and adjusting to the coincidence position. On this basis, through driving piece drive moving member rebound, the moving member can drive oscillating piece rebound to cut the bone clearance until being full of to make oscillating piece and thighbone condyle osteotomy face contact cooperation, at this moment, the scale of the correspondence on the directional first scale mark of first instruction structure obtains the knee joint and cuts bone clearance size when being in the extension position, and the same reason can obtain the knee joint and cut bone clearance size when being in the position of bending knees. Simultaneously, when the knee joint was in the extension position, because the pulling force of left side ligament and right side ligament is different, the pendulum part swings around the moving member under the effect of pulling force to drive the scale that corresponds on the directional second scale mark of second indication structure, obtain the angle of turning up and control ligament tensioning state. The external rotation angle and the left and right ligament tensioning states of the knee joint at the knee bending position can be obtained in the same way. Therefore, the reference rod is used for measuring whether the central axis of the placing platform is aligned with the lower limb force line or not and adjusting to the coincident position, so that the accuracy of numerical values obtained in the process of obtaining the size of the osteotomy gap, the eversion angle, the external rotation angle and the tension state of the left ligament and the right ligament is improved, the measurement error is greatly reduced, the detection precision is improved, and the measured numerical values are accurately obtained. After the size of the osteotomy gap, the eversion angle, the outward rotation angle and the tensioning states of the left ligament and the right ligament are obtained, whether the loosening degree of the left ligament and the right ligament needs to be adjusted or not can be intuitively and accurately judged. When needed, the looseness of the knee joint in the soft tissue is balanced. Therefore, the technical scheme of the application effectively solves the problem that the detection precision is not high due to the use of the gap measuring block in the related technology.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic partially exploded view of an embodiment of a device for measuring the balance of soft tissues in a joint according to the present invention;

FIG. 2 is a perspective view of the device of FIG. 1 with the torque wrench removed;

FIG. 3 is a schematic view of the joint soft tissue balance measuring device of FIG. 1 shown in an exploded configuration with the torque wrench removed;

FIG. 4 shows a perspective view of the joint soft tissue balance measuring device of FIG. 1 with the torque wrench and the filler block removed;

FIG. 5 shows a schematic front view of the joint soft tissue balance measurement device of FIG. 1 placed in a straightened position of the knee joint;

FIG. 6 shows a schematic front view of the joint soft tissue balance measurement device of FIG. 1 positioned at a knee flexion position of a knee joint;

FIG. 7 shows a cross-sectional schematic view of the joint soft tissue balance measurement device of FIG. 4 at a first cut-away location;

FIG. 8 shows a cross-sectional schematic view of the joint soft tissue balance measurement device of FIG. 4 at a second cut-away location;

FIG. 9 shows a perspective view of a torque wrench of the joint soft tissue balance measuring device of FIG. 1; and

fig. 10 shows a schematic top view of the indicator dial of the torque wrench of fig. 9.

Wherein the figures include the following reference numerals:

101. the left ligament; 102. the right ligament; 10. a substrate; 11. a main body; 111. a first scale mark; 112. a through hole; 113. a first mounting hole; 114. a through groove; 115. mounting grooves; 116. a third mounting hole; 117. a second mounting hole; 12. placing a platform; 20. a reference bar; 30. a moving member; 31. a second scale mark; 32. a first indicating structure; 33. moving the body; 34. a support portion; 35. a scale plate; 40. a swinging member; 41. swinging the body; 42. a second indicating structure; 50. a drive member; 61. a transmission structure; 611. a first drive tooth; 612. a second gear; 43. a rotating shaft; 35. a scale plate; 71. a force application member; 72. a locking member; 73. matching teeth; 74. a locking tooth; 75. an elastic member; 76. a pivot; 80. filling blocks; 90. a torque wrench; 91. an indicator panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1 to 6, the joint soft tissue balance measuring device of the present embodiment includes: base 10, moving member 30, oscillating member 40 and driving member 50. The base 10 includes a main body 11 and a placing table 12 provided on the main body 11. The side wall of the main body 11 is provided with a first scale line 111, and the main body 11 is provided with a reference rod 20 extending along a preset direction. The moving member 30 movably penetrates through the main body 11, and a second scale mark 31 and a first indication structure 32 matched with the first scale mark 111 are arranged on a side wall of the moving member 30. The swinging member 40 is swingably inserted through the moving member 30 and located above the placing platform 12. The oscillating member 40 includes an oscillating body 41 and a second indicating structure 42, and the second indicating structure 42 is disposed on the oscillating body 41 and cooperates with the second graduation mark 31. The driving member 50 drives the moving member 30 to move up and down.

By applying the technical scheme of the embodiment, the placing platform 12 and the swinging part 40 are placed in the osteotomy gap when the knee joint is in the extension position, the reference rod 20 is used for measuring whether the central axis of the placing platform 12 is aligned with the lower limb force line, and the central axis is adjusted to the coincident position. On this basis, drive moving member 30 through the driving piece and upwards remove, moving member 30 can drive oscillating piece 40 and upwards remove until being full of and cut the bone clearance to make oscillating piece 40 and thighbone condyle osteotomy face contact cooperation, at this moment, the corresponding scale on the directional first scale mark 111 of first instruction structure 32 obtains the knee joint and cuts bone clearance size when being in extension position, and the same reason can obtain the knee joint and cut bone clearance size when being in the position of bending knees. Meanwhile, when the knee joint is in the extended position, due to the different tension of the left ligament 101 and the right ligament 102, the swinging member swings around the moving member 30 under the action of the tension, and drives the second indicating structure 42 to point to the corresponding scale on the second scale mark 31, so as to obtain the eversion angle and the tensioning state of the left and right ligaments. The external rotation angle and the left and right ligament tensioning states of the knee joint at the knee bending position can be obtained in the same way. Thus, the reference rod 20 is used for measuring whether the central axis of the placing platform 12 is aligned with the lower limb force line or not and adjusting to the coincident position, so that the accuracy of numerical values obtained in the process of obtaining the size of the osteotomy gap, the eversion angle, the external rotation angle and the tension state of the left ligament and the right ligament is improved, the measurement error is greatly reduced, the detection precision is improved, and the measured numerical values are accurately obtained. After the size of the osteotomy gap, the eversion angle, the outward rotation angle and the tensioning states of the left ligament and the right ligament are obtained, whether the loosening degree of the left ligament and the right ligament needs to be adjusted or not can be intuitively and accurately judged. When needed, the looseness of the knee joint in the soft tissue is balanced. The joint soft tissue balance measuring device can perform osteotomy operation in the state of measuring the characteristic value of the specific femoral condyle, so that the operation is more accurate and scientific. Therefore, the technical scheme of the embodiment effectively solves the problem that the detection precision is not high due to the use of the gap measuring block in the related technology.

The "predetermined direction" is a direction in which the reference bar 20 is parallel to the lower limb force line.

As shown in fig. 4 to 6, the main body 11 is provided with a through hole 112, and the reference rod 20 is detachably inserted into the through hole 112. The through hole is convenient for placing the reference rod 20, and the hole wall of the through hole 112 can form a guide for the outer wall of the reference rod 20, so that the reference rod 20 can penetrate in or out conveniently.

As shown in fig. 3 to 6, the main body 11 is further provided with a first mounting hole 113 and a through groove 114 communicating with the first mounting hole 113. The axis of the first mounting hole 113 is parallel to the axis of the through hole 112. The moving member 30 includes a moving body 33 and a support portion 34 provided on the moving body 33. The moving body 33 is movably disposed through the first mounting hole 113, the first indicating structure 32 is disposed on the moving body 33 and located in the through groove 114, and a portion of the swinging body 41 is disposed through the supporting portion 34. The first mounting hole 113 is provided to guide the moving body 33. The through slot 114 is configured to clear the first indicating structure 32 such that the first indicating structure 32 is exposed to the exterior of the main body 11. A scale plate 35 is provided on a side wall of the support portion 34, and the second scale line 31 is provided on the scale plate 35. The arrangement of the scale 35 can serve as a carrier for the arrangement of the second graduation marks 31. Specifically, the scale plate 35 is provided with a long hole, the end of the second indication structure 42 extends into the long hole, the end of the second indication structure 42 is provided with a slot, and the slot width of the slot is equal to the line width of the second scale mark 31. The ends of the first and second indicator structures 32, 42 are each preferably indicator posts.

As shown in fig. 3 and 4, the swing body 41 is provided with a rotating shaft 43, and the support portion 34 is provided with a rotating hole engaged with the rotating shaft 43, so that the rotating shaft 43 can rotate in the rotating hole, so that the rotating shaft 43 of the swing body 41 swings around the support portion 34.

As shown in fig. 4, 7 and 8, the main body 11 is further provided with a second mounting hole 117 communicating with the first mounting hole 113. The axis of the second mounting hole 117 is disposed perpendicular to the axis of the first mounting hole 113. The driving member 50 is disposed through the second mounting hole 117, and the driving member 50 drives the moving body 33 to move through the transmission structure 61. The first mounting hole 113 communicates with the second mounting hole 117 so that the driving member 50 can drive the moving body 33 to move through the transmission structure 61. Under the action of the transmission structure 61, the rotation of the driving member 50 can be transmitted to the moving body 33 to move the moving body 33 up and down. The axis of the second mounting hole 117 is perpendicular to the axis of the first mounting hole 113 so that the driving member 50 does not deflect when driving the moving body 33. The swinging body 41 of the present embodiment is a swinging plate.

As shown in fig. 4 and 7, a mounting groove 115 and a third mounting hole 116 are provided on a side wall of the main body 11. The mounting groove 115 communicates with the third mounting hole 116, and the third mounting hole 116 communicates with the first mounting hole 113. The joint soft tissue balance measuring device further comprises a locking structure, wherein the locking structure is arranged in the mounting groove 115 and the third mounting hole 116 in a penetrating mode, and a part of the locking structure can lock the moving body 33. Under the action of the locking structure, the moving body 33 can be kept at the moving position, preventing the moving body 33 from moving downwards relative to the main body 11. Meanwhile, the installation groove 115 and the third installation hole 116 are communicated, so that an accommodating space for accommodating the locking structure can be formed on the main body 11, and the whole structure of the joint soft tissue balance measuring device is compact.

As shown in fig. 4 and 7, the locking structure includes an urging member 71 and a locking member 72. The urging member 71 is pivotably provided to the mounting groove 115. Locking member 72 is movably disposed within third mounting aperture 116. The locking member 72 and the transmission structure 61 are located at both sides of the moving body 33, respectively. Thus, there is no interference between the locking member 72 and the transmission structure 61 when they are operated separately or simultaneously. The urging member 71 urges the lock member 72 so that the lock member 72 can lock the moving body 33. Thus, while the lock member 72 is ensured to have the effect of locking the moving body 33, the biasing member 71 can prevent the lock member 72 from retreating.

As shown in fig. 7, the force applying member 71 includes a pressing section, a pivoting section and a top abutting section, the pressing section is located at the outer side of the main body 11, the pivoting section is rotatably connected to the groove side wall of the mounting groove through a pivot 76, the locking member 72 includes a locking body and a pressing hole provided on the locking body, and the top abutting section extends into the pressing hole. The pressing section is convenient to operate, the abutting section enables the force application piece 71 to directly apply force to the locking piece 72, and the force application process of the force application piece 71 is more reliable. Meanwhile, the abutting section extends into the pressing hole, and the abutting section can stop the locking body to prevent the locking member 72 from separating from the third mounting hole 116.

As shown in fig. 7, the locking structure further includes an elastic member 75 disposed in the mounting groove 115. Both ends of the elastic member 75 abut against the groove bottom of the mounting groove 115 and the biasing member 71, respectively. The elastic member 75 can always abut against the urging member 71, so that the urging member 71 always keeps the state of abutting against the lock member 72, and the lock member 72 can reliably lock the moving body 33. When the moving body 33 moves downward, the biasing member 71 is pressed, and at this time, the locking member 72 is separated from the moving body 33, and the moving body 33 moves downward. The elastic member 75 is preferably a spring or an elastic body.

As shown in fig. 7, a tooth structure is provided between the lock member 72 and the moving body 33, and the tooth structure includes an engaging tooth 73 and a lock tooth 74 that is in abutting engagement with the engaging tooth 73. The mating teeth 73 comprise a plurality of tooth portions, the mating teeth 73 being provided on the moving body 33, the locking teeth 74 being provided on the locking member 72, the moving body 33 being in different locking positions relative to the locking member 72 when the locking teeth 74 are mated with different tooth portions. In this way, the mobile body 33 can be in different height positions to meet the requirement that the oscillating piece 40 fills up different osteotomy gap sizes.

Of course, in other embodiments not shown in the figures, the locking teeth are provided on the moving body and the mating teeth are provided on the locking element.

As shown in fig. 7 and 8, the transmission structure 61 includes a first transmission tooth 611 and a second transmission tooth 612 engaged with the first transmission tooth 611, the first transmission tooth 611 is disposed on the driving member 50, and the second transmission tooth 612 is disposed on the moving body 33. The first and second transmission teeth 611 and 612 cooperate to enable the driving member 50 to smoothly drive the moving body 33 to move up and down.

As shown in fig. 2 to 5, the joint soft tissue balance measuring device further includes a filling block 80 provided on the swing body 41. When the knee joint is in the extension position, the filling block 80 can fill the osteotomy gap, reduce the upward moving distance of the moving body 33, and is favorable for improving the efficiency of adjusting the size of the osteotomy gap.

As shown in fig. 1, 9 and 10, the joint soft tissue balance measuring device further includes a torque wrench 90 for driving the driving member 50 to rotate. The torque wrench 90 includes an indicator dial 91. The torque wrench 90 drives the driving member 50 to rotate so that the swinging body 41 or the filling block 80 on the moving body 33 is in contact fit with the femoral condyle osteotomy surface, and the value on the indicating plate 91 is zero. When the torque wrench 90 is continuously rotated, the swinging body 41 or the filling block 80 applies an abutting force to the osteotomy surface of the femoral condyle, the swinging body 41 or the filling block 80 overcomes the gravity of the joint and then gradually moves upwards and pulls the left ligament and the right ligament until the left ligament and the right ligament are tensioned, if the swinging body 41 or the filling block 80 continuously applies force, the indication value of the indication plate 91 is gradually increased, and the torque force of the torque wrench 90 reflects the tensioning state of the left ligament and the right ligament, namely, the average tension force of the left ligament and the right ligament at the straightening position or the knee bending position is displayed. The distance between two adjacent scales on the indicator panel 91 is marked as 10N. Thus, the torque measurement range of the torque wrench 90 is 0-200N. The design of the torque wrench 90 with 10N as a unit is suitable for the tension range of the ligament of the human body, so that the torque wrench 90 can measure the tension of the left ligament and the right ligament more effectively.

The joint soft tissue balance measuring device of the application can also be used in orthopedic operations with similar requirements.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A joint soft tissue balance measurement device, comprising:

the base body (10) comprises a main body (11) and a placing platform (12) arranged on the main body (11), wherein the side wall of the main body (11) is provided with a first scale mark (111), and the main body (11) is provided with a reference rod (20) extending along a preset direction;

the moving piece (30) is movably arranged in the main body (11) in a penetrating mode, and a second scale mark (31) and a first indicating structure (32) matched with the first scale mark (111) are arranged on the side wall of the moving piece (30);

the swinging piece (40) can be arranged on the moving piece (30) in a penetrating mode in a swinging mode and located above the placing platform (12), the swinging piece (40) comprises a swinging body (41) and a second indicating structure (42), and the second indicating structure (42) is arranged on the swinging body (41) and matched with the second scale marks (31);

and the driving piece (50) drives the moving piece (30) to move up and down.

2. The device according to claim 1, wherein the main body (11) is provided with a through hole (112), and the reference rod (20) is detachably inserted into the through hole (112).

3. The joint soft tissue balance measuring device according to claim 2, wherein the main body (11) is further provided with a first mounting hole (113) and a through groove (114) communicated with the first mounting hole (113), the axis of the first mounting hole (113) is parallel to the axis of the through hole (112), the moving member (30) includes a moving body (33) and a support portion (34) provided on the moving body (33), the moving body (33) is movably arranged through the first mounting hole (113), the first indicating structure (32) is arranged on the moving body (33) and positioned in the through groove (114), a part of the swinging body (41) is arranged in the supporting part (34) in a penetrating way, the side wall of the supporting portion (34) is provided with a scale plate (35), and the second scale marks (31) are arranged on the scale plate (35).

4. The joint soft tissue balance measuring device according to claim 3, wherein the main body (11) is further provided with a second mounting hole (117) communicated with the first mounting hole (113), the axis of the second mounting hole (117) is perpendicular to the axis of the first mounting hole (113), the driving member (50) is arranged in the second mounting hole (117) in a penetrating manner, and the driving member (50) drives the moving body (33) to move through a transmission structure (61).

5. The device for measuring the balance of the soft tissue of the joint according to claim 4, wherein a mounting groove (115) and a third mounting hole (116) are provided on the side wall of the main body (11), the mounting groove (115) is communicated with the third mounting hole (116), the third mounting hole (116) is communicated with the first mounting hole (113), the device further comprises a locking structure, the locking structure is arranged through the mounting groove (115) and the third mounting hole (116), and a part of the locking structure can lock the movable body (33).

6. The device according to claim 5, wherein the locking structure comprises a force applying member (71) and a locking member (72), the force applying member (71) is pivotally disposed on the mounting groove (115), the locking member (72) is movably disposed in the third mounting hole (116), the locking member (72) and the transmission structure (61) are respectively located on both sides of the moving body (33), and the force applying member (71) applies force to the locking member (72) to enable the locking member (72) to lock the moving body (33).

7. Joint soft tissue balance measuring device according to claim 6, wherein a tooth arrangement is provided between the locking element (72) and the moving body (33), said tooth arrangement comprising an engaging tooth (73) and a locking tooth (74) in abutting engagement with the engaging tooth (73), said engaging tooth (73) comprising a plurality of teeth, one of the engaging tooth (73) and the locking tooth (74) being provided on the moving body (33) and the other on the locking element (72), the moving body (33) being in different locking positions relative to the locking element (72) when the locking tooth (74) is engaged with different ones of the teeth.

8. The device for measuring the balance of soft tissues in joint according to claim 6, wherein the locking structure further comprises an elastic member (75) disposed in the mounting groove (115), and both ends of the elastic member (75) abut against the groove bottom of the mounting groove (115) and the force applying member (71), respectively.

9. The device according to claim 1, further comprising a filler block (80) disposed on the oscillating body (41).

10. The device according to claim 1, further comprising a torque wrench (90) for driving the driving member (50) to rotate, wherein the torque wrench (90) comprises an indicating plate (91), and the interval between two adjacent scales on the indicating plate (91) is 10N.

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