CN106880408B - Force line positioner for high tibial osteotomy - Google Patents
Force line positioner for high tibial osteotomy Download PDFInfo
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- CN106880408B CN106880408B CN201710142181.5A CN201710142181A CN106880408B CN 106880408 B CN106880408 B CN 106880408B CN 201710142181 A CN201710142181 A CN 201710142181A CN 106880408 B CN106880408 B CN 106880408B
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- 210000003423 ankle Anatomy 0.000 claims abstract description 83
- 210000003141 lower extremity Anatomy 0.000 claims abstract description 41
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- 210000001624 hip Anatomy 0.000 claims description 27
- 210000000544 articulatio talocruralis Anatomy 0.000 claims description 20
- 210000004394 hip joint Anatomy 0.000 claims description 14
- 210000000078 claw Anatomy 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 4
- 210000002303 tibia Anatomy 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 5
- 230000036541 health Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 210000003414 extremity Anatomy 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 210000003127 knee Anatomy 0.000 description 5
- 210000000629 knee joint Anatomy 0.000 description 4
- 241000469816 Varus Species 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002594 fluoroscopy Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 206010003246 arthritis Diseases 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 201000008482 osteoarthritis Diseases 0.000 description 1
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Abstract
A force line locator for a high tibial osteotomy, comprising: the force line measuring piece is a length extending piece which is consistent with the extending direction of the lower limbs of the human body, and the force line of the lower limbs is measured by aligning the two ends of the force line measuring piece with the central point of the femoral head and the central point of the ankle of the human body; the fixing component is used for installing the force line measuring piece, the fixing component is connected with a human body, and at least one end of the force line measuring piece is movably connected with the fixing component, so that the end of the force line measuring piece can be subjected to position adjustment in a horizontal plane perpendicular to the length direction of the force line measuring piece in the measuring process. The problem of need doctor handheld power line measuring piece carry out positioning work in the current high-order osteotomy of shin bone, influence the high-order osteotomy of shin bone precision to increase the dose that the operation doctor received radiation and influence doctor's health is solved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a force line positioner for a high tibial osteotomy.
Background
In a young patient with degenerative arthritis and an inverted knee, the cartilage of the joint inside the knee becomes more worn and becomes bent, which induces pain, and the weight is concentrated on one side when the patient stands up and walks, which worsens the arthritis and makes the pain heavy. In the operation of such a medial leg deformity, a high tibial osteotomy is performed near the knee of the medial high tibia.
The tibial plateau osteotomy is a method of performing an osteotomy on the upper part of the tibia to disperse more of the weight load concentrated on the inner side of the knee joint to the outer side and reduce pain. As shown in fig. 8, which is a human X-ray photograph of a patient requiring high tibial osteotomy, a line connecting a femoral head center point to an ankle center is a lower limb force line, which means a weight line during walking, and normally passes through the center of the knee. High tibial osteotomies are procedures performed to correct the knee joint so that the line of force passes through the center of the knee.
The lower limb force line from the femoral head central point to the ankle central point needs to be accurately positioned in the operation process of the high tibial osteotomy, so that whether the lower limb force line of a human body is satisfied or not needs to be observed by using an X-ray perspective force line measuring piece in the operation process of the high tibial osteotomy, and the knee joint varus angle of the human body is further adjusted. In the prior art, two surgeons usually hold two ends of a force line measuring member, so that one end of the force line measuring member is aligned with the center point of the femoral head and the other end of the force line measuring member is aligned with the center point of the ankle, and then the satisfaction of the force line of the lower limb of the human body is observed through X-ray fluoroscopy. Adopt the measurement positioning mode of doctor handheld power line measuring part, receive the shake reason that human factor or doctor's hand can't avoid, and then influence the intraoperative measured accuracy of high osteotomy of shin bone to there is the high adverse factor of radiation in the perspective process, can increase the dose that the operation doctor received the radiation, lead to influencing the healthy problem of doctor.
Disclosure of Invention
Therefore, the technical problems to be solved by the invention are to avoid the problems that the positioning accuracy is poor due to inaccurate handheld fixation caused by the fact that medical staff positions the lower limb force line by holding the force line measuring piece by hands, and the health of the body is influenced because the medical staff needs to bear the radiation in the X-ray fluoroscopy process. There is thus provided a force line positioner for a high tibial osteotomy, comprising:
the force line measuring piece is a length extending piece which is consistent with the extending direction of the lower limbs of the human body, and the force line of the lower limbs is measured by aligning the two ends of the force line measuring piece with the central point of the femoral head and the central point of the ankle of the human body;
the fixing component is used for installing the force line measuring piece, the fixing component is connected with a human body, and at least one end of the force line measuring piece is movably connected with the fixing component, so that the end of the force line measuring piece can be subjected to position adjustment in a horizontal plane perpendicular to the length direction of the force line measuring piece in the measurement process.
The fixing assembly comprises a first fixing piece and a second fixing piece, the first fixing piece is used for fixing the upper end of the force line measuring piece, and the second fixing piece is used for fixing the lower end of the force line measuring piece; the first fixing piece is movably connected with the force line measuring piece.
The first fixing piece is a hip holding device corresponding to a hip joint of a waist of a human body, and the second fixing piece is an ankle holding device corresponding to an ankle of a lower limb of the human body.
The hip holding device comprises fixing plates and sliding rods, the fixing plates are arranged at hip joints on two sides of the waist of a human body respectively, the sliding rods are connected with the two fixing plates, and the upper end of the force line measuring piece is connected to the sliding rods in a sliding mode.
The utility model discloses a measuring device, including the slide bar, first connection subassembly, slide bar, force line measuring piece with the slide bar is connected through first connection subassembly, first connection subassembly including be equipped with be used for fixing the slide bar, and with slide bar sliding connection's slide bar mounting, and be used for fixing force line measuring piece's measuring piece mounting, the slide bar mounting with it links to each other to measure a mounting through the articulated shaft rotation.
The measuring part fixing part and the force line measuring part are connected through a quick locking assembly, and by means of the quick locking assembly, the measuring part fixing part and the force line measuring part can be quickly locked and unlocked.
The quick locking assembly comprises a clamping rod and a first elastic element, wherein the clamping rod is provided with a clamping groove corresponding to the measuring part fixing part and the force line measuring part respectively, the first elastic element is sleeved on the clamping rod, a biasing force far away from the direction of the measuring part fixing part is applied towards the clamping rod, and the clamping rod is connected with the measuring part fixing part and the force line measuring part in a clamping mode respectively.
The sliding rod is a telescopic rod provided with a telescopic device.
The ankle holding device comprises an ankle fixing component for fixing ankle joints of lower limbs of a human body and a first connecting rod for connecting the ankle fixing component and the force line measuring piece, and the first connecting rod is connected with the force line measuring piece through a second connecting component in a sliding mode up and down along the vertical direction of the lower limbs of the human body; the first connecting rod is connected with the ankle fixing component through a third connecting component in a left-right sliding mode along the horizontal direction of the lower limbs of the human body.
The second coupling assembling includes connecting piece and first clamping screw, be equipped with on the connecting piece with the line of force measuring piece corresponds the first connecting hole that sets up and with the second connecting hole that first connecting rod corresponds the setting, first clamping screw inserts second connecting hole butt is in on the first connecting rod for fix first connecting rod.
At the end part of the first fixing screw rod, an abutting surface abutted against the first connecting rod is an arc-shaped surface matched with the outer wall of the first connecting rod.
The third coupling assembling is including setting up the fixed subassembly of ankle with the link end of first connecting rod, the spout and the slider of mutually supporting, be equipped with the scale mark that corresponds each other on spout and the slider respectively.
The inner cavity of the first connecting rod is provided with a second fixing screw rod in threaded connection with the first connecting rod, and the lower end of the second fixing screw rod is abutted to a sliding block arranged on the ankle fixing component and used for limiting the sliding block and the sliding groove to move relatively.
The fixed subassembly of ankle includes with the arc mounting of human ankle joint looks adaptation, sets up the jack catch at arc mounting both ends, and set up the arc mounting with second elastic element between the jack catch, second elastic element is right the jack catch is applied and is had the biasing force towards human ankle joint direction for fixed human ankle joint.
The force line measuring piece is a metal rod or a metal wire.
In the operation process of the high tibial osteotomy, the lower limb force line from the femoral head central point to the ankle central point is accurately positioned by the force line positioner, and an X-ray perspective line measuring rod is used for observing whether the lower limb force line of a human body is satisfactory or not in the operation process of the high tibial osteotomy, so that the knee joint varus angle of the human body is further adjusted until the lower limb force line of the human body is satisfactory.
The technical scheme of the invention has the following advantages:
1. according to the force line positioner for the high tibial osteotomy, the force line measuring piece is fixed by the fixing component, one end of the force line measuring piece is movably connected with the fixing component, so that the force line measuring piece can be adjusted in position in a horizontal plane perpendicular to the length direction of the force line measuring piece in the measurement process, and two ends of the force line measuring piece are aligned to the femoral head central point and ankle central point of a human body to measure the force line of the lower limb.
2. The invention provides a force line positioner for a high tibial osteotomy, wherein a fixing component comprises a hip embracing device used for fixing the upper end of a force line measuring piece and corresponding to a hip joint of a human waist and an ankle embracing device used for fixing the lower end of the force line measuring piece and corresponding to an ankle of a lower limb of the human body, and the hip embracing device is fixed on the hip joint of the human waist and is convenient for measuring the central point of a femoral head of the human body; the ankle holding device is fixed on the ankle of the lower limb of the human body, the central point of the ankle of the human body can be conveniently measured, the positioning accuracy of the force line positioner is improved, and powerful guarantee is provided for implementation of the high-position tibial osteotomy.
3. The force line positioner for the high tibial osteotomy comprises fixing plates and sliding rods, wherein the fixing plates are respectively arranged at hip joints at two sides of the waist of a human body, the sliding rods are connected with the two fixing plates, and the upper end of a force line measuring piece is connected to the sliding rods in a sliding mode, so that the force line measuring piece is aligned to the central point of the femoral head of the human body.
4. The force line positioner for the high tibial osteotomy provided by the invention has the advantages that the force line measuring part is connected with the sliding rod through the first connecting assembly, the first connecting assembly comprises the sliding rod fixing part for fixing the sliding rod and the measuring part fixing part for fixing the force line measuring part, the sliding rod fixing part and the measuring part fixing part are rotationally connected through the articulated shaft, and the sliding rod fixing part and the measuring part fixing part are articulated through the shaft, so that the angle of the force line measuring part of the force line positioner can be conveniently adjusted in the horizontal direction, and the two ends of the force line measuring part are respectively aligned with the femoral head central point and the ankle central point of a human body.
5. According to the force line positioner for the high tibial osteotomy, the measuring part fixing part and the force line measuring part are connected through the quick locking assembly, so that a doctor can conveniently finely adjust the position of the force line measuring part to align the force line measuring part to the central point of the femoral head.
6. The force line positioner for the high tibial osteotomy comprises a clamping rod and a first elastic element, wherein the first elastic element is sleeved on the clamping rod and applies a biasing force in a direction far away from a measuring part fixing piece towards the clamping rod so that the clamping rod is clamped with the measuring part fixing piece and the force line measuring piece.
7. According to the force line positioner for the high tibial osteotomy, the sliding rod is a telescopic rod provided with the telescopic device, and the length of the sliding rod can be adjusted according to the weight of a patient, so that the hip-holding device is firmly fixed with a human body.
8. The invention provides a force line positioner for high tibial osteotomy, which comprises an ankle fixing component and a first connecting rod, wherein the ankle fixing component is used for fixing ankle joints of lower limbs of a human body; first link passes through second coupling assembling and links to each other with the vertical direction of line of force measuring piece along human low limbs is slided from top to bottom, and then accomplishes the altitude mixture control of line of force measuring piece, and first link passes through third coupling assembling and the fixed subassembly of ankle links to each other along the horizontal direction horizontal slip of human low limbs, and then accomplishes the alignment work of line of force measuring piece and human ankle central point, has easy operation facility, the reliable advantage of simple structure.
9. The invention provides a force line positioner for a high tibial osteotomy, wherein a second connecting assembly comprises a connecting piece and a first fixing screw rod and is used for fixing a force line measuring piece, the end part of the first fixing screw rod is provided with an arc-shaped surface matched with the outer wall of the first connecting rod, and an abutting surface abutted with the first connecting rod (15) can enable the force line measuring piece to rotate around the first connecting rod along the horizontal direction, so that the force line measuring piece rotates along the horizontal direction, and the center point of a femoral head and the center point of an ankle of a human body can be aligned.
10. According to the force line positioner for the high tibial osteotomy, the third connecting assembly for adjusting the horizontal position of the ankle fixing assembly comprises the sliding groove and the sliding block which are matched with each other, the adjustment work is completed through mutual sliding, and the sliding groove and the sliding block are respectively provided with the scale lines which correspond to each other, so that the relative position of the force line measuring piece and the central point of the ankle of a human body can be conveniently recorded, and convenience is provided for the subsequent work of positioning the central point of the ankle of the human body.
11. According to the force line positioner for the high tibial osteotomy, the second fixing screw rod in threaded connection with the first connecting rod is arranged in the inner cavity of the first connecting rod and is abutted against the sliding block to limit the relative movement of the sliding block and the sliding groove, so that the problem that the force line measuring piece and the position of the ankle central point of a human body are inaccurately positioned due to the relative displacement of the sliding groove and the sliding block is solved.
12. The force line positioner for the high tibial osteotomy comprises an ankle fixing component, a clamping jaw and a first elastic element, wherein the ankle fixing component comprises an arc fixing piece matched with an ankle joint of a human body, the clamping jaw is arranged at two ends of the arc fixing piece, the second elastic element is arranged between the arc fixing piece and the clamping jaw, and biasing force towards the ankle joint of the human body is applied to the clamping jaw by the second elastic element.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a perspective view of a force line positioner for a high tibial osteotomy provided by the present invention;
FIG. 2 is a schematic perspective view of a hip hugging device according to the present invention;
FIG. 3 is a perspective view of a first coupling assembly for coupling a force line measuring device and a slide bar according to the present invention;
FIG. 4 is a cross-sectional view of the first coupling assembly shown in FIG. 3;
FIG. 5 is a perspective view of a second linkage assembly provided in accordance with the present invention for connecting a force line measuring member to a first linkage;
FIG. 6 is a cross-sectional view of the second connection assembly shown in FIG. 5;
fig. 7 is a perspective view of an ankle securing assembly according to the present invention;
FIG. 8 is an X-ray of a human body requiring a high tibial osteotomy;
description of reference numerals:
1-a force line measuring member; 2-a stationary component; 3-ankle holding device; 4-a hip holding device; 5, fixing a plate; 6-a slide bar; 7-a first connection assembly; 8-sliding bar fixing part; 9-measuring member fixing member; 10-a hinged axis; 11-a quick-lock assembly; 12-a click rod; 13-a first elastic element; 14-a clamping groove; 15-a first link; 16-a second connection assembly; 17-a third connection assembly; 18-a connector; 19-a first set screw; 20-a first connection hole; 21-a second connection hole; 22-a chute; 23-a slide block; 24-a second set screw; 25-ankle securement assembly; 26-arc shaped fixing pieces; 27-claws; 28-a second elastic element.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
A force line locator for high tibial osteotomy is described, as shown in fig. 1, comprising:
the force line measuring piece 1 is a length extending piece consistent with the extending direction of the lower limbs of the human body, and the force line of the lower limbs is measured by aligning the two ends of the force line measuring piece with the central point of the femoral head and the central point of the ankle of the human body;
and the fixing component 2 is used for installing the force line measuring piece 1, the fixing component 2 is connected with a human body, and two ends of the force line measuring piece 1 are movably connected with the fixing component, so that the end of the force line measuring piece 1 can be subjected to position adjustment in a horizontal plane vertical to the length direction of the force line measuring piece 1 in the measuring process.
Above-mentioned high-order osteotomy's of shin bone line locator, the line of force measuring piece adopts fixed subassembly fixed, the one end and the fixed subassembly swing joint of line of force measuring piece, so that the line of force measuring piece can carry out position adjustment in measuring in the horizontal plane with line of force measuring piece length direction vertically, make its both ends aim at human femoral head central point and ankle central point and measure low limbs line of force, adopt behind the line of force locator, medical staff need not handheld line of force measuring piece and fixes a position low limbs line of force, the accuracy of low limbs line of force location has been improved, and avoided medical staff to bear the problem of X ray radiation in handheld line of force measuring piece.
As shown in fig. 1, the fixing assembly 2 includes a first fixing member for fixing the upper end of the force line measuring member 1 and a second fixing member for fixing the lower end of the force line measuring member 1; the first fixing piece is movably connected with the force line measuring piece 1.
The first fixing piece is a hip holding device 3 corresponding to a hip joint of a waist of a human body, and the second fixing piece is an ankle holding device 4 corresponding to an ankle of a lower limb of the human body.
The fixing component comprises a hip embracing device used for fixing the upper end of the force line measuring piece and corresponding to the hip joint of the waist of the human body and an ankle embracing device used for fixing the lower end of the force line measuring piece and corresponding to the ankle of the lower limb of the human body, and the hip embracing device is fixed on the hip joint of the waist of the human body and is convenient for measuring the central point of the femoral head of the human body; the ankle holding device is fixed on the ankle of the lower limb of the human body, the central point of the ankle of the human body can be conveniently measured, the positioning accuracy of the force line positioner is improved, and powerful guarantee is provided for implementation of the high-position tibial osteotomy.
As shown in fig. 2, the hip-holding device 3 includes fixing plates 5 respectively disposed at hip joints on both sides of the waist of the human body, and a sliding rod 6 connecting the two fixing plates 5, and the upper end of the force line measuring unit 1 is slidably connected to the sliding rod 6.
The hip embracing device comprises fixing plates which are respectively arranged at hip joints at two sides of the waist of a human body and a sliding rod which is connected with the two fixing plates, and the upper end of the force line measuring piece is connected to the sliding rod in a sliding way, so that the force line measuring piece is aligned to the central point of the femoral head of the human body.
As shown in fig. 3 and 4, the force line measuring part 1 and the sliding rod 6 are connected through a first connecting assembly 7, the first connecting assembly 7 includes a sliding rod fixing part 8 which is used for fixing the sliding rod 6 and is connected with the sliding rod 6 in a sliding way, and a measuring part fixing part 9 which is used for fixing the force line measuring part 1, the sliding rod fixing part 8 and the measuring part fixing part 9 are connected in a rotating way through a hinge shaft 10, the measuring part fixing part 9 drives the force line measuring part 1 to rotate around the hinge shaft 10, and the position of the force line measuring part 1 is adjusted to be aligned with the center point of the femoral head.
The force line measuring piece is connected with the sliding rod through the first connecting assembly, the first connecting assembly comprises a sliding rod fixing piece used for fixing the sliding rod and a measuring piece fixing piece used for fixing the force line measuring piece, the sliding rod fixing piece and the measuring piece fixing piece are connected in a rotating mode through an articulated shaft, the sliding rod fixing piece and the measuring piece fixing piece are hinged through the shaft, the force line measuring piece of the force line positioner is convenient to adjust the angle in the horizontal direction, and the two ends of the force line measuring piece are aligned to the femoral head central point and the ankle central point of a human body respectively.
As shown in fig. 3 and 4, the measuring part holder 9 and the force line measuring part 1 are connected by a quick-locking assembly 11, by means of which quick-locking assembly 11 the measuring part holder 9 and the force line measuring part 1 can be quickly locked and unlocked.
The measuring part fixing part and the force line measuring part are connected through the quick locking assembly, so that a doctor can conveniently finely adjust the position of the force line measuring part to align the force line measuring part to the center point of the femoral head.
As shown in fig. 4, quick locking Assembly 11 includes joint pole 12 and first elastic element 13, be equipped with on joint pole 12 respectively with measuring part mounting 9 with the corresponding joint groove 14 of force line measuring part 1, first elastic element 13 cup joints joint on joint pole 12, apply the biasing force of keeping away from measuring part mounting 9 direction towards joint pole 12, make joint pole 12 link to each other with measuring part mounting 9 and force line measuring part 1 joint respectively, be equipped with the button on the joint pole 12, spring compression when the button is pressed, joint pole 12 breaks away from with joint groove 14, makes things convenient for operating personnel to adjust the position of force line measuring part 1.
The quick locking assembly comprises the clamping rod and a first elastic element, the first elastic element is sleeved on the clamping rod, and the first elastic element applies a biasing force towards the clamping rod in a direction away from the measuring part fixing part so that the clamping rod is clamped with the measuring part fixing part and the force line measuring part.
As shown in fig. 2, the sliding rod 6 is a telescopic rod provided with a telescopic device, the sliding rod 6 includes a hollow outer tube and an inner connecting rod sleeved in the outer tube, the telescopic device includes a fixing screw rod, the fixing screw rod is inserted along the radial direction of the sliding rod 6, and is abutted to the inner connecting rod, so that the outer tube and the inner connecting rod are fixedly connected.
The sliding rod is a telescopic rod provided with a telescopic device, and the length of the sliding rod can be adjusted according to the weight of a patient, so that the hip holding device is firmly fixed with a human body.
As shown in fig. 1, the ankle clasper 4 comprises an ankle fixing component 25 for fixing the ankle joint of the lower limb of the human body and a first connecting rod 15 connecting the ankle fixing component 25 and the force line measuring piece 1, wherein the first connecting rod 15 is connected with the force line measuring piece 1 in a sliding manner up and down along the vertical direction of the lower limb of the human body through a second connecting component 16; the first link 15 is slidably connected to the ankle fixing member 25 in the horizontal direction of the lower limb of the human body through a third connecting member 17.
The ankle embracing device comprises an ankle fixing component for fixing ankle joints of lower limbs of a human body and a first connecting rod for connecting the ankle fixing component and the force line measuring piece; first link passes through second coupling assembling and links to each other with the vertical direction of line of force measuring piece along human low limbs is slided from top to bottom, and then accomplishes the altitude mixture control of line of force measuring piece, and first link passes through third coupling assembling and the fixed subassembly of ankle links to each other along the horizontal direction horizontal slip of human low limbs, and then accomplishes the alignment work of line of force measuring piece and human ankle central point, has easy operation facility, the reliable advantage of simple structure.
As shown in fig. 5 and 6, the second connecting assembly 16 includes a connecting member 18 and a first fixing screw 19, the connecting member 18 is provided with a first connecting hole 20 corresponding to the force line measuring member 1 and a second connecting hole 21 corresponding to the first connecting rod 15, and the first fixing screw 19 is inserted into the second connecting hole 21 and abuts against the first connecting rod 15 to fix the first connecting rod 15.
The abutting surface of the end of the first fixing screw rod 19 abutting against the first connecting rod 15 is an arc-shaped surface matched with the outer wall of the first connecting rod 15.
The second connecting assembly comprises a connecting piece and a first fixing screw rod, the connecting piece is used for fixing the force line measuring piece, the end part of the first fixing screw rod is an arc-shaped surface matched with the outer wall of the first connecting rod, the abutting surface abutted against the first connecting rod 15 can enable the force line measuring piece to rotate around the first connecting rod in the horizontal direction, and the force line measuring piece can rotate in the horizontal direction and can be aligned to the femoral head central point and the ankle central point of a human body.
As shown in fig. 7, the third connecting assembly 17 includes a sliding groove 22 and a sliding block 23 which are disposed at the connecting end of the ankle fixing assembly 25 and the first connecting rod 15 and are engaged with each other, and the sliding groove 22 and the sliding block 23 are respectively provided with corresponding graduation marks.
Above-mentioned third coupling assembling for adjusting fixed subassembly horizontal direction position of ankle is including the spout and the slider of mutually supporting, accomplishes regulation work through mutual slip, and is equipped with the scale mark that corresponds each other on spout and the slider respectively, and the relative position of record power line measuring piece and human ankle central point of being convenient for provides convenience for need carry out human ankle central point location work once more in the future.
As shown in fig. 1, the inner cavity of the first link 15 is provided with a second fixing screw 24 in threaded connection therewith, and the lower end of the second fixing screw 24 abuts against a sliding block 23 provided on the ankle fixing member 25 for limiting the relative movement between the sliding block 23 and the sliding groove 22.
The inner cavity of the first connecting rod is provided with a second fixing screw rod in threaded connection with the first connecting rod, the second fixing screw rod is abutted to the sliding block and used for limiting the sliding block and the sliding groove to move relatively, and the problem that the force line measuring piece and the ankle central point of the human body are inaccurately positioned due to relative displacement of the sliding groove and the sliding block is avoided.
As shown in fig. 7, the ankle fixing member 25 includes an arc fixing member 26 adapted to the ankle joint of the human body, claws 27 provided at both ends of the arc fixing member 26, and second elastic members 28 provided between the arc fixing member 26 and the claws 27, the second elastic members 28 are sleeved on the connecting rods at both ends of the arc fixing member 26, one end of each elastic member is connected to the claw 27, the other end of each elastic member is connected to the arc fixing member 26, and a biasing force in the direction of the ankle joint of the human body is applied to the claws 27 to fix the ankle joint of the human body.
The ankle fixing assembly comprises an arc fixing piece matched with the human ankle joint and clamping jaws arranged at two ends of the arc fixing piece, wherein a second elastic element is arranged between the arc fixing piece and the clamping jaws, and the second elastic element applies biasing force towards the direction of the human ankle joint to the clamping jaws for fixing the human ankle joint and has the advantages of simplicity in operation and firmness in fixation.
As shown in fig. 1, the force line measuring member 1 is a metal rod.
Example 2
A force line locator for high tibial osteotomy is described, as shown in fig. 1, comprising:
the force line measuring piece 1 is a length extending piece which is consistent with the extending direction of the lower limbs of the human body, and the force line of the lower limbs is measured by aligning the two ends of the force line measuring piece with the central point of the femoral head and the central point of the ankle of the human body;
and the fixing component 2 is used for installing the force line measuring piece 1, the fixing component 2 is connected with a human body, and two ends of the force line measuring piece 1 are movably connected with the fixing component, so that the end of the force line measuring piece 1 can be subjected to position adjustment in a horizontal plane vertical to the length direction of the force line measuring piece 1 in the measuring process.
As shown in fig. 1, the fixing assembly 2 includes a first fixing member for fixing the upper end of the force line measuring member 1 and a second fixing member for fixing the lower end of the force line measuring member 1; the first fixing piece is movably connected with the force line measuring piece 1.
The first fixing part is a hip-embracing device 3 corresponding to a hip joint of a waist of a human body, and the second fixing part is an ankle-embracing device 4 corresponding to an ankle of a lower limb of the human body.
As shown in fig. 2, the hip-holding device 3 includes fixing plates 5 respectively disposed at hip joints on both sides of the waist of the human body, and a sliding rod 6 connecting the two fixing plates 5, and the upper end of the force line measuring unit 1 is slidably connected to the sliding rod 6.
As shown in fig. 3 and 4, the force line measuring part 1 is connected to the sliding rod 6 through a first connecting assembly 7, the first connecting assembly 7 includes a sliding rod fixing part 8 for fixing the sliding rod 6 and slidably connected to the sliding rod 6, and a measuring part fixing part 9 for fixing the force line measuring part 1, the sliding rod fixing part 8 and the measuring part fixing part 9 are rotatably connected through a hinge shaft 10, the measuring part fixing part 9 drives the force line measuring part 1 to rotate around the hinge shaft 10, and the position of the force line measuring part 1 is adjusted to be aligned with the central point of the femoral head.
As shown in fig. 3 and 4, the measuring part holder 9 and the force line measuring part 1 are connected by a quick-locking assembly 11, by means of which quick-locking assembly 11 the measuring part holder 9 and the force line measuring part 1 can be quickly locked and unlocked.
As shown in fig. 4, quick locking assembly 11 includes joint pole 12 and first elastic element 13, be equipped with on joint pole 12 respectively with measuring part mounting 9 with the corresponding joint groove 14 of force line measuring part 1, first elastic element 13 cup joints joint on joint pole 12, apply the biasing force of keeping away from measuring part mounting 9 direction towards joint pole 12, make joint pole 12 respectively with measuring part mounting 9 and force line measuring part 1 joint continuous, be equipped with the button on joint pole 12, spring compression when the button is pressed, joint pole 12 breaks away from with joint groove 14, makes things convenient for operating personnel to adjust the position of force line measuring part 1.
As shown in fig. 2, the sliding rod 6 is a telescopic rod provided with a telescopic device, the sliding rod 6 includes a hollow outer tube and an inner connecting rod sleeved in the outer tube, the telescopic device includes a fixing screw rod, the fixing screw rod is inserted along the radial direction of the sliding rod 6, and is abutted to the inner connecting rod, so that the outer tube and the inner connecting rod are fixedly connected.
As shown in fig. 1, the ankle clasping device 4 comprises an ankle fixing component 25 for fixing the ankle joint of the lower limb of the human body, and a first connecting rod 15 connecting the ankle fixing component 25 and the force line measuring piece 1, wherein the first connecting rod 15 is connected with the force line measuring piece 1 in a sliding manner up and down along the vertical direction of the lower limb of the human body through a second connecting component 16; the first link 15 is connected to the ankle fixing member 25 by a third connecting member 17 to slide left and right in the horizontal direction of the lower limb of the human body.
As shown in fig. 5 and 6, the second connecting assembly 16 includes a connecting member 18 and a first fixing screw 19, the connecting member 18 is provided with a first connecting hole 20 corresponding to the force line measuring member 1 and a second connecting hole 21 corresponding to the first connecting rod 15, and the first fixing screw 19 is inserted into the second connecting hole 21 and abuts against the first connecting rod 15 to fix the first connecting rod 15.
The abutting surface of the end of the first fixing screw rod 19 abutting against the first connecting rod 15 is an arc-shaped surface matched with the outer wall of the first connecting rod 15.
As shown in fig. 7, the third connecting assembly 17 includes a sliding groove 22 and a sliding block 23, which are disposed at the connecting end of the ankle fixing assembly 25 and the first connecting rod 15 and are engaged with each other, and the sliding groove 22 and the sliding block 23 are respectively provided with corresponding graduation marks.
As shown in fig. 1, the inner cavity of the first link 15 is provided with a second fixing screw 24 in threaded connection therewith, and the lower end of the second fixing screw 24 abuts against a sliding block 23 provided on the ankle fixing member 25, so as to limit the relative movement between the sliding block 23 and the sliding groove 22.
As shown in fig. 7, the ankle fixing member 25 includes an arc fixing member 26 adapted to the ankle joint of the human body, claws 27 provided at both ends of the arc fixing member 26, and second elastic members 28 provided between the arc fixing member 26 and the claws 27, the second elastic members 28 are sleeved on the connecting rods at both ends of the arc fixing member 26, one end of each elastic member is connected to the claw 27, the other end of each elastic member is connected to the arc fixing member 26, and a biasing force in the direction of the ankle joint of the human body is applied to the claws 27 to fix the ankle joint of the human body.
The force line measuring member 1 is a metal wire.
The force line measuring piece is a metal wire and has the advantage of being convenient to carry.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.
Claims (10)
1. A force line locator for a high tibial osteotomy, comprising:
the force line measuring piece (1) is a length extending piece which is consistent with the extending direction of the lower limbs of the human body, and the force line of the lower limbs is measured by aligning the two ends of the force line measuring piece with the central point of the femoral head and the central point of the ankle of the human body;
the fixing component (2) is used for installing the force line measuring piece (1), the fixing component (2) is connected with a human body, and at least one end of the force line measuring piece (1) is movably connected with the fixing component, so that the end of the force line measuring piece (1) can be subjected to position adjustment in a horizontal plane vertical to the length direction of the force line measuring piece (1) in the measurement process;
the fixing assembly (2) comprises a first fixing piece for fixing the upper end of the force line measuring piece (1) and a second fixing piece for fixing the lower end of the force line measuring piece (1); the first fixing piece is movably connected with the force line measuring piece (1);
the first fixing piece is a hip holding device (3) corresponding to a hip joint of the waist of the human body, and the second fixing piece is an ankle holding device (4) corresponding to an ankle of the lower limb of the human body;
the hip holding device (3) comprises fixing plates (5) which are respectively arranged at hip joints at two sides of the waist of a human body and a sliding rod (6) which is connected with the two fixing plates (5), and the upper end of the force line measuring piece (1) is connected to the sliding rod (6) in a sliding manner;
the force line measuring piece (1) is connected with the sliding rod (6) through a first connecting assembly (7), the first connecting assembly (7) comprises a sliding rod fixing piece (8) which is used for fixing the sliding rod (6) and is in sliding connection with the sliding rod (6), and a measuring piece fixing piece (9) which is used for fixing the force line measuring piece (1), and the sliding rod fixing piece (8) is rotatably connected with the measuring piece fixing piece (9) through a hinge shaft (10);
the measuring part fixing part (9) and the force line measuring part (1) are connected through a quick locking assembly (11), and by means of the quick locking assembly (11), the measuring part fixing part (9) and the force line measuring part (1) can be quickly locked and unlocked.
2. The force line positioner according to claim 1, wherein the quick locking assembly (11) comprises a clamping rod (12) and a first elastic element (13), the clamping rod (12) is provided with clamping grooves (14) corresponding to the measuring part fixing part (9) and the force line measuring part (1), respectively, the first elastic element (13) is sleeved on the clamping rod (12) and applies a biasing force towards the clamping rod (12) in a direction away from the measuring part fixing part (9), so that the clamping rod (12) is respectively connected with the measuring part fixing part (9) and the force line measuring part (1) in a clamping manner.
3. Force line positioner according to claim 1, characterized in that the sliding rod (6) is a telescopic rod provided with a telescopic device.
4. A force line positioner according to any one of claims 1-3, wherein the ankle clasper (4) comprises an ankle fixing component (25) for fixing the ankle joint of the lower limb of the human body and a first connecting rod (15) connecting the ankle fixing component (25) and the force line measuring member (1), the first connecting rod (15) is connected with the force line measuring member (1) in a sliding manner up and down along the vertical direction of the lower limb of the human body through a second connecting component (16); the first connecting rod (15) is connected with the ankle fixing component (25) in a left-right sliding mode along the horizontal direction of the lower limbs of a human body through a third connecting component (17).
5. The force line positioner according to claim 4, wherein the second connecting assembly (16) comprises a connecting piece (18) and a first fixing screw (19), the connecting piece (18) is provided with a first connecting hole (20) corresponding to the force line measuring piece (1) and a second connecting hole (21) corresponding to the first connecting rod (15), and the first fixing screw (19) is inserted into the second connecting hole (21) to abut against the first connecting rod (15) for fixing the first connecting rod (15).
6. The force line positioner according to claim 5, wherein at the end of the first fixing screw (19), the abutment surface against the first connecting rod (15) is an arc-shaped surface adapted to the outer wall of the first connecting rod (15).
7. A force line positioner according to claim 4, wherein the third connecting assembly (17) comprises a slide groove (22) and a slide block (23) which are arranged at the connecting end of the ankle fixing assembly (25) and the first connecting rod (15) and are matched with each other, and the slide groove (22) and the slide block (23) are respectively provided with corresponding graduation marks.
8. The line of force locator of claim 7, wherein the inner cavity of the first link (15) is provided with a second lead screw (24) in threaded connection therewith, and a lower end of the second lead screw (24) abuts against a slider (23) provided on the ankle securing member (25) for restricting relative movement of the slider (23) and the chute (22).
9. The force line locator according to claim 4, wherein the ankle fixing member (25) comprises an arc-shaped fixing member (26) adapted to the ankle of the human body, claws (27) provided at both ends of the arc-shaped fixing member (26), and second elastic members (28) provided between the arc-shaped fixing member (26) and the claws (27), the second elastic members (28) applying a biasing force toward the ankle of the human body to the claws (27) for fixing the ankle of the human body.
10. The line of force positioner according to claim 1, characterised in that the line of force measuring element (1) is a metal rod or a metal wire.
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| CN201710142181.5A CN106880408B (en) | 2017-03-10 | 2017-03-10 | Force line positioner for high tibial osteotomy |
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| CN201710142181.5A CN106880408B (en) | 2017-03-10 | 2017-03-10 | Force line positioner for high tibial osteotomy |
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| CN108113763B (en) * | 2017-11-21 | 2020-10-27 | 中国人民解放军第一七五医院 | Device for positioning femoral head center in tibia high-position osteotomy |
| CN107961056B (en) * | 2017-11-24 | 2020-04-28 | 中国人民解放军总医院第一附属医院 | Force line measuring angle positioning device for osteotomy around knee joint |
| CN108451651B (en) * | 2018-02-09 | 2024-06-14 | 爱乔（上海）医疗科技有限公司 | Angle measuring device and method for tibia osteotomy |
| CN109009433B (en) * | 2018-08-01 | 2020-08-07 | 影为医疗科技(上海)有限公司 | System, computer-readable storage medium, and apparatus for two-dimensional planning of high tibial osteotomy |
| CN109771053B (en) * | 2018-12-28 | 2021-04-20 | 西安交通大学 | Intraoperative lower limb force line measuring tool |
| CN109771057B (en) * | 2019-03-18 | 2023-02-03 | 嘉思特华剑医疗器材(天津)有限公司 | Force line calibrator |
| CN109966108A (en) * | 2019-05-10 | 2019-07-05 | 赵滨 | A kind of replacement knee in arthroplasty auxiliary stand |
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| US4524766A (en) * | 1982-01-07 | 1985-06-25 | Petersen Thomas D | Surgical knee alignment method and system |
| FR2871363B1 (en) * | 2004-06-15 | 2006-09-01 | Medtech Sa | ROBOTIZED GUIDING DEVICE FOR SURGICAL TOOL |
| US20100249535A1 (en) * | 2009-03-26 | 2010-09-30 | Jay Pierce | System and method for an orthopedic dynamic data repository and registry for recall |
| EP3033024A1 (en) * | 2013-08-13 | 2016-06-22 | Brainlab AG | Determining the positional information of characteristic points of a leg for osteotomy |
| CN203506854U (en) * | 2013-08-28 | 2014-04-02 | 李子剑 | Line of force alignment assist device for external positioning of tibia marrow |
| CN103654924A (en) * | 2013-12-13 | 2014-03-26 | 中国人民解放军第三军医大学第二附属医院 | Tibia cutting device based on ankle joint planar ultrasonic guidance positioning |
| JP6601812B2 (en) * | 2014-03-28 | 2019-11-06 | アルスロデザイン株式会社 | Surgical tools for joint replacement |
| CN105361883A (en) * | 2014-08-22 | 2016-03-02 | 方学伟 | Method for determining lower limb biological force line in three-dimensional space for total knee arthroplasty |
| CN205126436U (en) * | 2015-10-21 | 2016-04-06 | 冯明光 | Shin bone spin control measuring device in art that fractures futilely |
| CN205433985U (en) * | 2016-02-18 | 2016-08-10 | 首都医科大学宣武医院 | Fracture is made mould and is hit device with beating |
| CN207202946U (en) * | 2017-03-10 | 2018-04-10 | 首都医科大学宣武医院 | Force line positioner for high tibial osteotomy |
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