Hip joint measuring device

Abstract

The invention provides a hip joint measuring device which is characterized in that a strip-shaped hole penetrating through a first rod body in the length direction of the first rod body is formed in the first rod body, the strip-shaped hole and a first scale value are arranged at an interval in the circumferential direction of the first rod body, and a connecting sleeve movably sleeves the first rod body. The second rod body is arranged in the connecting sleeve and the strip-shaped hole in a penetrating mode, the first rod section is provided with a second scale value in the length direction of the first rod section, and the first locking piece is arranged between the connecting sleeve and the first rod body; the second locking piece is arranged between the first rod section and the connecting sleeve; the horizontal measuring structure is arranged at the second end of the first rod body, the sleeve part is fixedly arranged on the horizontal measuring structure and sleeves the first rod body, and the sleeve part is provided with third scale values in the circumferential direction; the indicating part is arranged on the first rod body and corresponds to the third scale value. According to the technical scheme, the problem that the length, the eccentric distance and the buckling angle of the lower limb cannot be measured synchronously in the prior art is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a hip joint measuring device. Background Art

[0002] Restoring the length and eccentricity of the lower limbs is an important technical goal for the success of artificial hip replacement surgery. However, if the length of the two lower limbs is unequal or the difference in eccentricity exceeds 1 cm, about 80% of the cases will experience varying degrees of discomfort. If the affected limb is shortened or the eccentricity is too small, the affected limb is prone to joint laxity, weakened abduction strength, and an increased risk of hip dislocation; if the affected limb is overly extended or the eccentricity is too large, pain, lameness, and limited joint movement may occur in the affected limb, which can easily lead to serious adverse consequences such as pelvic tilt and scoliosis, and even require a second surgery to correct the unequal length of the lower limbs.

[0003] Therefore, accurate reconstruction of lower limb length and eccentricity during joint replacement seriously affects surgical prognosis. Currently, existing tools cannot measure length and eccentricity at the same time, and cannot measure flexion angle, and rely more on the doctor's subjective judgment. Summary of the invention

[0004] The main purpose of the present invention is to provide a hip joint measuring device to solve the problem in the related art that the length, eccentricity and flexion angle of the lower limb cannot be measured synchronously.

[0005] In order to achieve the above-mentioned object, the present invention provides a hip joint measuring device, comprising: a first rod body, a strip hole penetrating the first rod body along the length direction of the first rod body is arranged on the first rod body, a first scale value is arranged on the first rod body along its length direction, the strip hole and the first scale value are arranged at intervals in the circumferential direction of the first rod body, and the first end of the first rod body is a first measuring end; a connecting sleeve, which is movably sleeved on the first rod body; a second rod body, which is inserted in the connecting sleeve and the strip hole, and the second rod body includes a first rod segment and a second rod segment perpendicular to each other, and the first rod segment and the first rod segment are arranged at intervals in the circumferential direction of the first rod body. A rod body is vertical, a first rod section is provided with a second scale value along its length direction, and a free end of the second rod section is a second measuring end; a first locking piece is provided between the connecting sleeve and the first rod body; a second locking piece is provided between the first rod section and the connecting sleeve; a horizontal measuring structure is provided at the second end of the first rod body, and the first rod body is rotatably provided relative to the horizontal measuring structure; a sleeve part is fixedly provided on the horizontal measuring structure and sleeved on the first rod body, and a third scale value is provided on the sleeve part along its circumference; an indicating part is provided on the first rod body and is provided corresponding to the third scale value.

[0006] Furthermore, the connecting sleeve includes a main body, a first mounting hole is arranged on the main body, the first rod body is movably inserted into the first mounting hole, and the first mounting hole and the first rod body are anti-rotationally matched.

[0007] Furthermore, the first locking member includes a steel ball and a swinging plate. A mounting groove connected to the first mounting hole is provided on the upper surface of the main body. The swinging plate is hinged on the groove wall of the mounting groove. The steel ball is movably arranged in the mounting groove. The swinging plate has a locking position and an unlocking position. The swinging plate swings and pushes the steel ball so that the steel ball is stuck in the mouth of the strip hole to lock the first rod body and the connecting sleeve. The swinging plate swings and avoids the steel ball so that there is a gap between the steel ball and the mouth of the strip hole to unlock the first rod body and the connecting sleeve.

[0008] Furthermore, a first avoidance groove and a second avoidance groove are provided on the main body. The first avoidance groove is provided on the upper surface of the main body and is located on the outside of the steel ball. The second avoidance groove is provided on the side wall of the main body and is located below the swing plate. The depth direction of the first avoidance groove is parallel to the axis of the first rod body, and the depth direction of the first avoidance groove and the depth direction of the second avoidance groove are vertically provided.

[0009] Furthermore, a second mounting hole is provided on the side wall of the main body, the second rod body is inserted into the second mounting hole, and the axis of the second mounting hole is perpendicular to the axis of the first mounting hole.

[0010] Furthermore, an observation port is provided on the main body, the axis of the observation port is perpendicular to the axis of the first mounting hole, and the axis of the observation port is perpendicular to the axis of the second mounting hole.

[0011] Furthermore, the second locking member includes a thread arranged on the first rod segment and an adjusting nut connected to the thread, the connecting sleeve also includes a first connecting rod, a second connecting rod, a first limiting rod and a second limiting rod, the first end of the first connecting rod is connected to the main body, the first end of the first limiting rod is connected to the second end of the first connecting rod, the first end of the second connecting rod is connected to the main body, the first end of the second limiting rod is connected to the second end of the second connecting rod, the first connecting rod and the second connecting rod are spaced apart, and the adjusting nut is located between the first limiting rod, the second limiting rod and the main body.

[0012] Furthermore, the connecting sleeve also includes a first pin, a second pin and a third pin, the first pin is connected between the first end of the first connecting rod and the first end of the second connecting rod, the second pin is connected between the second end of the first connecting rod and the second end of the second connecting rod, and the third pin is connected between the second end of the first limiting rod and the second end of the second limiting rod.

[0013] Further, the level measurement structure includes a third locking member, a supporting member and a level meter, the third locking member is connected to the sleeve portion, and the supporting member is connected between the third locking member and the level meter.

[0014] Furthermore, a ball head is provided at one end of the support member facing the third locking member, and the third locking member includes a first clamping plate and a second clamping plate that can be opened and closed, a spherical cavity is provided between the first clamping plate and the second clamping plate, the ball head is provided in the spherical cavity, the first end of the first clamping plate and the first end of the second clamping plate are hinged, and a locking nut is provided between the second end of the first clamping plate and the second end of the second clamping plate.

[0015] Furthermore, an outer convex edge is provided at the end of the first rod body facing the horizontal measuring structure, and an inner convex edge is provided at the bottom of the sleeve part. The hip joint measuring device also includes an elastic member, which is sleeved on the first rod body and located between the outer convex edge and the inner convex edge.

[0016] According to the technical solution of the present invention, a strip hole and a first scale value are provided on the first rod body, and the strip hole and the first scale value are arranged along the length direction of the first rod body and are arranged at intervals. The connecting sleeve is movably sleeved on the first rod body, and the second rod body includes a first rod segment and a second rod segment, the first rod segment is inserted into the connecting sleeve and the strip hole, the second rod segment and the first rod segment are arranged vertically, the second end of the second rod segment is a free end, the first locking piece is arranged between the connecting sleeve and the first rod body, and the second locking piece is arranged between the first rod segment and the connecting sleeve. The horizontal measurement structure is arranged at the first end of the first rod body, the sleeve part is fixedly arranged on the horizontal measurement structure, and sleeved on the second end of the first rod body, and the first rod body can rotate relative to the sleeve part. The sleeve part is provided with a third scale value, and the indicating part is arranged on the first rod body and is arranged corresponding to the third scale value. Through the above-mentioned setting, the second rod body is moved and locked through the connecting sleeve, thereby changing the relative setting of the second rod body and the first rod body, so that the first end of the first rod body abuts against the upper edge of the acetabulum, and the free end of the second rod segment can abut against the greater trochanter. At this time, the relative positions of the first rod body and the second rod body and the position of the first rod segment are locked by the first locking structure and the second locking structure, and the eccentricity can be obtained through the first scale value and the second scale value. Then, by rotating the first rod body so that the free end of the second rod segment abuts against the greater trochanter, the flexion angle can be read through the third scale value, and the tilt direction can be obtained through the horizontal measuring device, which can make the operation more accurate, that is, the patient's postoperative effect is better. Therefore, the technical solution of the present application effectively solves the problem of the inability to synchronously measure the length, eccentricity and flexion angle of the lower limb in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a hip joint measuring device according to the present invention is shown;

[0019] Figure 2 Shows Figure 1 Schematic diagram of the exploded structure of the hip joint measurement device;

[0020] Figure 3 Shows Figure 1 A schematic diagram of the three-dimensional structure of the first rod body of the hip joint measurement device;

[0021] Figure 4 Shows Figure 1 A schematic diagram of the three-dimensional structure of the second rod body and the connecting sleeve of the hip joint measuring device;

[0022] Figure 5 Shows Figure 4 A local enlarged view of point A;

[0023] Figure 6 Shows Figure 1 A schematic diagram of the three-dimensional structure of a connecting sleeve of a hip joint measuring device;

[0024] Figure 7 Shows Figure 1 A schematic diagram of the three-dimensional structure of the third locking member and the sleeve portion of the hip joint measuring device;

[0025] Figure 8 Shows Figure 7 A cross-sectional schematic diagram of a third locking member and a sleeve portion;

[0026] Fig. 9 Shows Figure 1 Schematic diagram of the hip joint measurement device for measuring eccentricity.

[0027] The above drawings include the following reference numerals:

[0028] 10. first rod body; 11. strip hole; 12. first scale value; 13. outer convex edge; 20. connecting sleeve; 21. main body; 211. first mounting hole; 212. mounting groove; 213. first avoidance groove; 214. second avoidance groove; 215. second mounting hole; 216. observation port; 22. first connecting rod; 23. second connecting rod; 24. first limiting rod; 25. second limiting rod; 26. first pin; 27. second pin; 28. third pin; 30. second rod body; 31. first rod section; 31 1. Second scale value; 32. Second rod section; 40. First locking piece; 41. Steel ball; 42. Swinging plate; 50. Second locking piece; 51. Thread; 52. Adjusting nut; 60. Level measuring structure; 61. Third locking piece; 611. First clamping plate; 612. Second clamping plate; 613. Spherical cavity; 614. Locking nut; 62. Support member; 621. Ball head; 63. Level; 70. Sleeve part; 71. Third scale value; 72. Inner convex edge; 81. Indicating part; 82. Elastic member; 83. Push rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0032] like Figures 1 to 4 as well as Fig. 9 As shown, in this embodiment, the hip joint measuring device includes: a first rod body 10, a connecting sleeve 20, a second rod body 30, a first locking member 40, a second locking member 50, a horizontal measuring structure 60, a sleeve portion 70 and an indicating portion 81. The first rod body 10 is provided with a strip hole 11 that penetrates the first rod body 10 along the length direction of the first rod body 10, and the first rod body 10 is provided with a first scale value 12 along its length direction. The strip hole 11 and the first scale value 12 are arranged at intervals in the circumferential direction of the first rod body 10, and the first end of the first rod body 10 is the first measuring end. The connecting sleeve 20 is movably sleeved on the first rod body 10. The second rod body 30 is inserted in the connecting sleeve 20 and the strip hole 11, and the second rod body 30 includes a first rod segment 31 and a second rod segment 32 that are perpendicular to each other. The first rod segment 31 is perpendicular to the first rod body 10, and the first rod segment 31 is provided with a second scale value 311 along its length direction, and the free end of the second rod segment 32 is the second measuring end. The first locking member 40 is disposed between the connecting sleeve 20 and the first rod body 10. The second locking member 50 is disposed between the first rod section 31 and the connecting sleeve 20. The horizontal measurement structure 60 is disposed at the second end of the first rod body 10, and the first rod body 10 is rotatably disposed relative to the horizontal measurement structure 60. The sleeve portion 70 is fixedly disposed on the horizontal measurement structure 60 and sleeved on the first rod body 10, and the sleeve portion 70 is provided with a third scale value 71 along its circumference. The indicating portion 81 is disposed on the first rod body 10 and is disposed corresponding to the third scale value 71.

[0033] According to the technical solution of this embodiment, the first rod body 10 is provided with a strip hole 11 and a first scale value 12, and the strip hole 11 and the first scale value 12 are arranged along the length direction of the first rod body 10 and are arranged at intervals. The connecting sleeve 20 is movably sleeved on the first rod body 10, and the second rod body 30 includes a first rod segment 31 and a second rod segment 32. The first rod segment 31 is inserted into the connecting sleeve 20 and the strip hole 11, and the second rod segment 32 and the first rod segment 31 are arranged vertically. The second end of the second rod segment 32 is a free end, the first locking member 40 is arranged between the connecting sleeve 20 and the first rod body 10, and the second locking member 50 is arranged between the first rod segment 31 and the connecting sleeve 20. The horizontal measurement structure 60 is arranged at the second end of the first rod body 10, and the sleeve portion 70 is fixedly arranged on the horizontal measurement structure 60 and sleeved on the second end of the first rod body 10, and the first rod body 10 can rotate relative to the sleeve portion 70. The sleeve portion 70 is provided with a third scale value 71, and the indicator portion 81 is provided on the first rod body 10 and is provided corresponding to the third scale value 71. Through the above-mentioned setting, the second rod body 30 is moved and locked through the connecting sleeve 20, thereby changing the relative setting of the second rod body 30 and the first rod body 10, so that the first end of the first rod body 10 abuts against the upper edge of the acetabulum, and the free end of the second rod segment 32 can abut against the greater trochanter. At this time, the relative positions of the first rod body 10 and the second rod body 30 and the position of the first rod segment 31 are locked by the first locking member 40 and the second locking member 50, and the eccentricity can be obtained by the first scale value 12 and the second scale value 311. Then, by rotating the first rod body 10, so that the free end of the second rod segment 32 abuts against the greater trochanter, the flexion angle can be read by the third scale value 71, and the tilt direction can be obtained by the horizontal measurement structure 60, so that the accuracy of the operation can be higher, that is, the postoperative effect of the patient is better. Therefore, the technical solution of this embodiment effectively solves the problem in the related art that the eccentricity and the flexion angle cannot be measured synchronously.

[0034] Preferably, a pointed structure is provided at the first end of the first rod body 10 .

[0035] like Figure 1 , Figure 2 , Figure 4 as well as Figure 6As shown, in this embodiment, the connecting sleeve 20 includes a main body 21, and a first mounting hole 211 is provided on the main body 21. The first rod body 10 is movably inserted into the first mounting hole 211, and the first mounting hole 211 and the first rod body 10 are locked. The first mounting hole 211 is provided so that the first rod body 10 can be inserted into the main body 21, and the first mounting hole 211 and the first rod body 10 are locked, which makes it easier to read. Specifically, in this embodiment, the two opposite surfaces of the first rod body 10 are planes, the first scale value 12 is provided on one surface, and the shape of the first mounting hole 211 is adapted to the shape of the cross section of the first rod body 10.

[0036] Specifically, in this embodiment, the main body 21 is formed by connecting three plates.

[0037] like Figure 1 , Figure 2 , Figure 4 as well as Figure 6 As shown, in this embodiment, the first locking member 40 includes a steel ball 41 and a swing plate 42. A mounting groove 212 communicating with the first mounting hole 211 is provided on the upper surface of the main body 21. The swing plate 42 is hinged on the groove wall of the mounting groove 212. The steel ball 41 is movably arranged in the mounting groove 212. The swing plate 42 has a locking position and an unlocking position. The swing plate 42 swings and pushes the steel ball 41 so that the steel ball 41 is stuck in the mouth of the strip hole 11 to lock the first rod body 10 and the connecting sleeve 20. The swing plate 42 swings and avoids the steel ball 41 so that there is a gap between the steel ball 41 and the mouth of the strip hole 11 to unlock the first rod body 10 and the connecting sleeve 20. The swing plate 42 can push the steel ball 41 and squeeze the steel ball 41 and the mouth of the strip hole 11 together, so that the position of the connecting sleeve 20 and the first rod body 10 can be effectively locked, and the structure is simple and the locking effect is good in such a setting.

[0038] like Figure 1 , Figure 2 , Figure 4 as well as Figure 6As shown, in this embodiment, the main body 21 is provided with a first avoidance groove 213 and a second avoidance groove 214. The first avoidance groove 213 is provided on the upper surface of the main body 21 and is located outside the steel ball 41. The second avoidance groove 214 is provided on the side wall of the main body 21 and is located below the swing plate 42. The depth direction of the first avoidance groove 213 is parallel to the axis of the first rod body 10, and the depth direction of the first avoidance groove 213 and the depth direction of the second avoidance groove 214 are vertically provided. The structure of the first avoidance groove 213 and the second avoidance groove 214 is simple and convenient to provide. The provision of the first avoidance groove 213 and the second avoidance groove 214 enables the swing plate 42 to have a certain displacement space when pushing the steel ball 41, that is, enables the swing plate 42 to move toward the side away from the steel ball 41, so that it is easier for the swing plate 42 to push the steel ball 41.

[0039] like Figure 1 , Figure 2 , Figure 4 as well as Figure 6 As shown, in this embodiment, a second mounting hole 215 is further provided on the side wall of the main body 21, and the second rod body 30 is inserted into the second mounting hole 215, and the axis of the second mounting hole 215 is perpendicular to the axis of the first mounting hole 211. The provision of the second mounting hole 215 can make the position of the first rod segment 31 more stable.

[0040] like Figure 1 , Figure 2 , Figure 4 as well as Figure 6 As shown, in this embodiment, the main body 21 is provided with an observation port 216, the axis of the observation port 216 is perpendicular to the axis of the first mounting hole 211, and the axis of the observation port 216 is perpendicular to the axis of the second mounting hole 215. The setting of the observation port 216 enables medical personnel to read the value on the first scale value 12 through it.

[0041] like Figure 1 , Figure 2 , Figure 4 as well as Figure 6As shown, in this embodiment, the second locking member 50 includes a thread 51 provided on the first rod segment 31 and an adjusting nut 52 connected to the thread 51, and the connecting sleeve 20 also includes a first connecting rod 22, a second connecting rod 23, a first limiting rod 24, and a second limiting rod 25. The first end of the first connecting rod 22 is connected to the main body 21, the first end of the first limiting rod 24 is connected to the second end of the first connecting rod 22, the first end of the second connecting rod 23 is connected to the main body 21, the first end of the second limiting rod 25 is connected to the second end of the second connecting rod 23, the first connecting rod 22 and the second connecting rod 23 are arranged at intervals, and the adjusting nut 52 is located between the first limiting rod 24, the second limiting rod 25 and the main body 21. The structure of the adjusting nut 52 and the thread 51 is simple and easy to set. The adjusting nut 52 can adjust the length of the first rod segment 31 located on both sides of the first rod body 10 and can limit the position of the first rod segment 31. At the same time, due to the provision of the first limiting rod 24 and the second limiting rod 25, the adjusting nut 52 is restricted between the first limiting rod 24 and the second limiting rod 25 and the main body 21, so that the position of the adjusting nut 52 can be ensured, thereby limiting the position of the first rod segment 31.

[0042] Specifically, Figure 5 As shown, in this embodiment, a push rod 83 is provided at the end of the first rod segment 31 away from the second rod segment 32 , and the push rod 83 is inserted into the first rod segment 31 , and the push rod 83 and the adjusting nut 52 are stop-fitted.

[0043] like Figure 6 As shown, in this embodiment, the connecting sleeve 20 also includes a first pin 26, a second pin 27 and a third pin 28, the first pin 26 is connected between the first end of the first connecting rod 22 and the first end of the second connecting rod 23, the second pin 27 is connected between the second end of the first connecting rod 22 and the second end of the second connecting rod 23, and the third pin 28 is connected between the second end of the first limiting rod 24 and the second end of the second limiting rod 25. The above-mentioned arrangement can improve the stability of the positions of the first connecting rod 22, the second connecting rod 23, the first limiting rod 24 and the second limiting rod 25, that is, it can prevent them from being damaged. The first pin 26, the second pin 27 and the third pin 28 can improve the structural strength of the first connecting rod 22, the second connecting rod 23, the first limiting rod 24 and the second limiting rod 25, thereby making the position of the adjusting nut 52 more stable.

[0044] like Figure 1 , Figure 2 , Figure 7 as well as Figure 8As shown, in this embodiment, the level measurement structure 60 includes a third locking member 61, a support member 62 and a level meter 63, the third locking member 61 is connected to the sleeve portion 70, and the support member 62 is connected between the third locking member 61 and the level meter 63. The above arrangement can effectively realize the measurement of the tilt direction.

[0045] like Figure 1 , Figure 2 , Figure 7 as well as Figure 8 As shown, in this embodiment, a ball head 621 is provided at one end of the support member 62 facing the third locking member 61, the third locking member 61 includes a first clamping plate 611 and a second clamping plate 612 that can be opened and closed, a spherical cavity 613 is provided between the first clamping plate 611 and the second clamping plate 612, the ball head 621 is provided in the spherical cavity 613, the first end of the first clamping plate 611 and the first end of the second clamping plate 612 are hinged, and a locking nut 614 is provided between the second end of the first clamping plate 611 and the second end of the second clamping plate 612. The ball head 621 is rotatably provided in the spherical cavity 613, and the first clamping plate 611 and the second clamping plate 612 can be fixed by the locking nut 614, so that the position of the support member 62 is stable. Specifically, when measuring, by adjusting the ball head 621, it is ensured that the level 63 is always in a horizontal position, and at this time, the tilt direction of the first rod body 10 can be observed, and the required tilt direction can be obtained.

[0046] like Figure 1 , Figure 2 , Figure 7 as well as Figure 8 As shown, in this embodiment, the support member 62 includes a support rod and a support frame, the first end of the support rod is connected to the ball head 621, and the second end is connected to the support frame, the support frame includes two cross-arranged connecting plates, the second end of the support rod is connected to the intersection of the two connecting plates, and the level 63 is arranged on the two connecting plates.

[0047] like Figure 1 , Figure 2 , Figure 7 as well as Figure 8 As shown, in this embodiment, the end of the first rod body 10 facing the horizontal measurement structure 60 is provided with an outer convex edge 13, the bottom of the sleeve portion 70 is provided with an inner convex edge 72, and the hip joint measurement device further includes an elastic member 82, which is sleeved on the first rod body 10 and located between the outer convex edge 13 and the inner convex edge 72. The above arrangement can ensure the stability of the connection between the sleeve portion 70 and the first rod body 10, and a certain buffer can be achieved under the action of the elastic member 82.

[0048] like Figures 1 to 9 As shown, the technical solution of this embodiment has the following advantages:

[0049] The pointed structure can achieve repeated positioning, that is, it can be effectively fixed on the ilium to achieve secondary positioning; it can measure the eccentricity and flexion angle of the hip joint; and the level can be used to monitor the intraoperative position at all times.

[0050] like Figures 1 to 9 As shown, the steps of using the hip joint measurement device of this embodiment are as follows:

[0051] Step 1: Open the wound, position the first rod 10 on the upper edge of the acetabulum, and adjust the connecting sleeve 20 and the adjusting nut 52 so that the free end of the second rod segment 32 is located on the greater trochanter;

[0052] Step 2: Press the swing plate 42 downward to squeeze the steel ball 41 so that the steel ball 41 completely presses against the strip hole 11 to fix the positions of the first rod body 10 and the second rod body 30;

[0053] Step 3: Record the values ​​y and x on the first rod body 10 and the second rod body 30 at this time for comparison and correction after surgery;

[0054] Step 4: Adjust the support member 62 to make the level 63 in a horizontal balance state, then tighten the locking nut 614 to lock the ball head 621;

[0055] Step 5: Remove the hip measurement device used during hip surgery and perform hip prosthesis replacement testing.

[0056] Step 6: Find the characteristic points on the upper edge of the acetabulum and the greater trochanter of the femur after replacement, adjust and place the hip joint measurement device, and record the values ​​y', x' on the first rod 10 and the second rod 30 at this time;

[0057] Step 7: Compare the two sets of data before and after measurement to calculate the vertical offset y after surgery 偏 =y'-y, horizontal offset x 偏 = x'-x, femoral side adjustment according to preoperative planning;

[0058] Step 8: During the operation, the sleeve part 70 can be rotated to evaluate the flexion and extension angles of the hip joint to ensure the patient's normal range of motion;

[0059] Step 9: Install the replacement prosthesis to complete the hip replacement surgery.

[0060] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0061] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0062] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hip joint measurement device, characterized in that: include: A first rod body (10), the first rod body (10) being provided with a strip hole (11) penetrating the first rod body (10) along the length direction of the first rod body (10), the first rod body (10) being provided with first scale values ​​(12) along the length direction thereof, the strip hole (11) and the first scale values ​​(12) being arranged at intervals in the circumferential direction of the first rod body (10), and the first end of the first rod body (10) being a first measuring end; A connecting sleeve (20) is movably sleeved on the first rod body (10); a second rod body (30), the second rod body (30) being inserted into the connecting sleeve (20) and the strip-shaped hole (11), the second rod body (30) comprising a first rod segment (31) and a second rod segment (32) which are perpendicular to each other, the first rod segment (31) being perpendicular to the first rod body (10), the first rod segment (31) being provided with a second scale value (311) along its length direction, and the free end of the second rod segment (32) being a second measuring end; A first locking member (40) is arranged between the connecting sleeve (20) and the first rod body (10); A second locking member (50) is arranged between the first rod section (31) and the connecting sleeve (20); A horizontal measurement structure (60) is arranged at the second end of the first rod body (10), and the first rod body (10) is rotatably arranged relative to the horizontal measurement structure (60); A sleeve portion (70) is fixedly arranged on the horizontal measurement structure (60) and sleeved on the first rod body (10), and the sleeve portion (70) is provided with a third scale value (71) along its circumference; An indicating portion (81) is arranged on the first rod body (10) and is arranged corresponding to the third scale value (71).

2. The hip joint measuring device according to claim 1, characterized in that: The connecting sleeve (20) comprises a main body (21), the main body (21) is provided with a first mounting hole (211), the first rod body (10) is movably inserted into the first mounting hole (211), and the first mounting hole (211) and the first rod body (10) are anti-rotationally matched.

3. The hip joint measuring device according to claim 2, characterized in that: The first locking member (40) comprises a steel ball (41) and a swing plate (42); a mounting groove (212) communicating with the first mounting hole (211) is provided on the upper surface of the main body (21); the swing plate (42) is hinged on the groove wall of the mounting groove (212); the steel ball (41) is movably arranged in the mounting groove (212); the swing plate (42) has a locking position and an unlocking position; the swing plate (42) swings and pushes the steel ball (41) so that the steel ball (41) is clamped at the mouth of the strip hole (11) to lock the first rod body (10) and the connecting sleeve (20); the swing plate (42) swings and avoids the steel ball (41) so that there is a gap between the steel ball (41) and the mouth of the strip hole (11) to unlock the first rod body (10) and the connecting sleeve (20).

4. The hip joint measuring device according to claim 3, characterized in that: The main body (21) is provided with a first avoidance groove (213) and a second avoidance groove (214); the first avoidance groove (213) is provided on the upper surface of the main body (21) and is located outside the steel ball (41); the second avoidance groove (214) is provided on the side wall of the main body (21) and is located below the swing plate (42); the depth direction of the first avoidance groove (213) is parallel to the axis of the first rod body (10); and the depth direction of the first avoidance groove (213) and the depth direction of the second avoidance groove (214) are perpendicularly provided.

5. The hip joint measuring device according to claim 2, characterized in that: A second mounting hole (215) is also provided on the side wall of the main body (21), the second rod body (30) is inserted into the second mounting hole (215), and the axis of the second mounting hole (215) is perpendicular to the axis of the first mounting hole (211).

6. The hip joint measuring device according to claim 5, characterized in that: The main body (21) is provided with an observation port (216), the axis of the observation port (216) is perpendicular to the axis of the first mounting hole (211), and the axis of the observation port (216) is perpendicular to the axis of the second mounting hole (215).

7. The hip joint measuring device according to claim 2, characterized in that: The second locking member (50) comprises a thread (51) arranged on the first rod section (31) and an adjusting nut (52) connected to the thread (51); the connecting sleeve (20) further comprises a first connecting rod (22), a second connecting rod (23), a first limiting rod (24) and a second limiting rod (25); the first end of the first connecting rod (22) is connected to the main body (21); the first end of the first limiting rod (24) is connected to the second end of the first connecting rod (22); the first end of the second connecting rod (23) is connected to the main body (21); the first end of the second limiting rod (25) is connected to the second end of the second connecting rod (23); the first connecting rod (22) and the second connecting rod (23) are spaced apart; and the adjusting nut (52) is located between the first limiting rod (24), the second limiting rod (25) and the main body (21).

8. The hip joint measuring device according to claim 7, characterized in that: The connecting sleeve (20) further comprises a first pin (26), a second pin (27) and a third pin (28), wherein the first pin (26) is connected between the first end of the first connecting rod (22) and the first end of the second connecting rod (23), the second pin (27) is connected between the second end of the first connecting rod (22) and the second end of the second connecting rod (23), and the third pin (28) is connected between the second end of the first limiting rod (24) and the second end of the second limiting rod (25).

9. The hip joint measuring device according to any one of claims 1 to 8, characterized in that: The level measurement structure (60) comprises a third locking member (61), a supporting member (62) and a level meter (63); the third locking member (61) is connected to the sleeve portion (70); and the supporting member (62) is connected between the third locking member (61) and the level meter (63).

10. The hip joint measuring device according to claim 9, characterized in that: A ball head (621) is provided at one end of the support member (62) facing the third locking member (61); the third locking member (61) includes a first clamping plate (611) and a second clamping plate (612) which can be opened and closed; a spherical cavity (613) is provided between the first clamping plate (611) and the second clamping plate (612); the ball head (621) is provided in the spherical cavity (613); the first end of the first clamping plate (611) and the first end of the second clamping plate (612) are hinged; and a locking nut (614) is provided between the second end of the first clamping plate (611) and the second end of the second clamping plate (612).

11. The hip joint measuring device according to any one of claims 1 to 8, characterized in that: The end of the first rod (10) facing the horizontal measurement structure (60) is provided with an outer convex edge (13), and the bottom of the sleeve portion (70) is provided with an inner convex edge (72). The hip joint measurement device also includes an elastic member (82), which is sleeved on the first rod (10) and located between the outer convex edge (13) and the inner convex edge (72).

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