Orthopedic external fixing frame support capable of being accurately pressurized or expanded

Abstract

The orthopedics external fixing frame support capable of being accurately pressurized or expanded comprises an upper fixing assembly, a lower fixing assembly, an adjusting base, an adjusting screw rod and an external supporting rod, wherein the adjusting screw rod and the external supporting rod are parallel to each other; the adjusting base is arranged at the bottom ends of the outer supporting rod and the adjusting screw rod in a sleeving mode and can limit the position relation between the outer supporting rod and the adjusting screw rod at the bottom ends of the outer supporting rod and the adjusting screw rod, the lower fixing assembly is arranged in the middle of the outer supporting rod and the adjusting screw rod, and the position of the lower fixing assembly can be adjusted along the outer supporting rod and the adjusting screw rod. The upper fixing assembly is arranged at the tops of the outer supporting rod and the adjusting screw rod; the upper fixing assembly comprises an upper three-dimensional moving mechanism, an upper platform module, an upper adjusting bolt and two upper outer fixing frame clamps. The lower fixing assembly comprises a lower three-dimensional moving mechanism, a lower platform module, a lower adjusting bolt and two lower outer fixing frame clamps. The external fixing device can be well matched with an external fixing frame, accurate pressurization, distraction or stretching of fractures and joints of a patient can be achieved, a doctor can operate the external fixing device easily and conveniently, and blood vessels and nerves can be avoided so as to reduce complications.

Description

Technical Field

[0001] The invention relates to the field of orthopedic medical devices, and in particular to an orthopedic external fixator bracket capable of precise pressurization or expansion. Background Art

[0002] Among orthopedic patients, patients with fractures in trauma orthopedics often have complex and ever-changing fracture conditions. Therefore, when treating the fracture site of orthopedic patients, it is often necessary to use an external fixator to select different angles and methods to pressurize, stretch or stretch the relevant parts of the patient according to the fracture section of each patient, so as to help the patient achieve fracture healing. At present, when orthopedic medical treatment is actually used in patients, the existing external fixator does not have a design that can cooperate with the external fixator to perform personalized and precise pressurization or stretching according to the ever-changing fracture conditions of the patient, which makes the treatment effect of the patient's fracture site poor, and the overall pressurization or stretching function is slightly insufficient, thereby affecting the patient's recovery. Specifically, there are two existing external fixator designs: one is an integrated external fixator, which can achieve pressurization or stretching, but has many restrictions on the placement position of the Shanz nail, which brings inconvenience to the placement of the nail. The other is a combined external frame. Although the placement of the Shanz nail is very flexible, it cannot achieve pressurization or stretching. That is, the above two external fixators each have their own defects, which to a certain extent affects the patient's recovery.

[0003] Therefore, how to ensure that the Shanz nail placement at the fracture site of the patient is very flexible and that accurate compression or stretching can be achieved is a technical problem that needs to be urgently solved by relevant personnel in this industry. Summary of the invention

[0004] To solve the above technical problems, we proposed an orthopedic external fixator bracket that can precisely pressurize or expand. It can cooperate well with the external fixator to precisely pressurize, expand or stretch the patient's fractures and joints. It is simple and convenient for doctors to operate and can avoid blood vessels and nerves to reduce complications.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] An orthopedic external fixator support capable of precise pressurization or expansion, comprising an upper fixing assembly, a lower fixing assembly, an outer support rod, an adjusting screw and an adjusting base; the outer support rod and the adjusting screw are arranged parallel to each other, the adjusting base is sleeved on the bottom ends of the outer support rod and the adjusting screw, and can limit the positional relationship between the two at the bottom ends of the outer support rod and the adjusting screw, the lower fixing assembly is arranged in the middle of the outer support rod and the adjusting screw, and its position can be adjusted up and down along the outer support rod and the adjusting screw, and the upper fixing assembly is arranged on the top of the outer support rod and the adjusting screw;

[0007] The upper fixing assembly comprises an upper three-dimensional movable mechanism, an upper platform module, an upper adjusting bolt and two upper external fixing frame clamps; the rear side of the upper three-dimensional movable mechanism is sleeved on the top end of the outer support rod and the adjusting screw, the middle part of the upper platform module is provided with a waist-shaped hole along its length direction, the front end head of the upper three-dimensional movable mechanism is inserted forward into the waist-shaped hole, and the upper adjusting bolt is arranged at the end face of the front end head of the upper three-dimensional movable mechanism; the middle part of the upper external fixing frame clamp is provided with a fixing hole in the front-to-back direction, and the side edge of the upper external fixing frame clamp is provided with an external fixing frame clamping groove; both ends of the front side of the upper platform module are vertically connected to the front with fixing bolts, and the two fixing bolts are respectively tightly inserted in the fixing holes of the two upper external fixing frame clamps, and the orientation of the external fixing frame clamping groove on the upper external fixing frame clamp can be adjusted by twisting the upper external fixing frame clamp to rotate around the fixing bolt;

[0008] The lower fixing assembly comprises a lower three-dimensional movable mechanism, a lower platform module, a lower adjusting bolt and two lower external fixer clamps, the rear side of the lower three-dimensional movable mechanism is sleeved on the middle part of the outer support rod and the adjusting screw, the middle part of the lower platform module is provided with a waist-shaped hole along its length direction, the front end head of the lower three-dimensional movable mechanism is inserted forward into the waist-shaped hole, and the lower adjusting bolt is arranged at the end face of the front end head of the lower three-dimensional movable mechanism; the middle part of the lower external fixer clamp is provided with a fixing hole in the front-to-back direction, and the side of the lower external fixer clamp is provided with an external fixer clamping groove; both ends of the front side of the lower platform module are vertically connected to the front with fixing bolts, and the two fixing bolts are respectively tightly inserted in the fixing holes of the two lower external fixer clamps, and the orientation of the external fixer clamping groove on the lower external fixer can be adjusted by twisting the lower external fixer clamp to rotate around the fixing bolts.

[0009] Preferably, the upper three-dimensional movable mechanism includes an upper adjustable slider, a support adjustment block, a universal joint module and an upper ball joint, the upper adjustable slider is sleeved on the top end of the outer support rod and the adjusting screw, the bottom of the support adjustment block is fixed to the middle of the top surface of the upper adjustable slider, the rear end of the universal joint module can be flipped and connected to the top of the support adjustment block, the ball head at the rear end of the upper ball joint is tightly embedded in the front end spherical cavity of the universal joint module, and when the front end of the upper ball joint is pulled, the ball head at the rear end can be flipped in three dimensions in the spherical cavity of the universal joint module.

[0010] Preferably, the lower three-dimensional movable mechanism includes a lower adjustable slider, a lower ball joint support and a lower ball joint, the lower adjustable slider is sleeved on the middle part of the outer support rod and the adjusting screw, the rear end of the lower ball joint support is rotatably connected to the middle part of the front side surface of the lower adjustable slider, the ball head at the rear end of the lower ball joint is tightly embedded in the spherical cavity at the front end of the lower ball joint support, and when the front end of the lower ball joint is pulled, the ball head at its rear end can be flipped in three dimensions in the spherical cavity of the lower ball joint support.

[0011] Preferably, a screw hole is provided on the top of the universal joint module from top to bottom, and an upper joint locking bolt is inserted into the screw hole. After the upper joint locking bolt is tightened, the screw end of the upper joint locking bolt contacts and presses the ball head at the rear end of the upper ball head joint, and locks the ball head at the rear end of the upper ball head joint in the spherical cavity of the universal joint module.

[0012] Preferably, a screw hole is provided on the side of the lower ball joint support from the outside to the inside, and a lower joint locking bolt is inserted into the screw hole. After the lower joint locking bolt is tightened, the screw end of the lower joint locking bolt contacts and presses the ball head at the rear end of the lower ball joint, and locks the ball head at the rear end of the lower ball joint in the spherical cavity of the lower ball joint support.

[0013] Preferably, a base adjusting bolt is connected to the bottom of the adjusting screw, and turning the base adjusting bolt can cause the lower adjustable slider to move on the adjusting screw and the outer support rod to adjust its position.

[0014] Preferably, the upper three-dimensional movable mechanism includes an upper adjustable slider, a rotation module and a ball joint support, a rotation axis is provided at the lower part of the rotation module, a rotation hole is provided at the upper middle part of the upper adjustable slider, the rotation axis of the rotation module is inserted into the rotation hole of the upper adjustable slider, and the top of the rotation module is connected to the rear end of the ball joint support.

[0015] Preferably, a screw hole connected to and perpendicular to the rotating hole is opened forward on the upper rear side of the upper adjustable slider, and a rotating shaft locking bolt is inserted in the screw hole. When the rotating shaft locking bolt is tightened, the front end of the screw rod of the rotating shaft locking bolt can press against the rotating shaft to lock the rotating module.

[0016] Preferably, a screw hole is provided in the middle of the rear side surface of the lower adjustable slider, and a lower adjustable slider locking bolt is inserted into the screw hole.

[0017] Through the above technical scheme, the present invention is designed with an upper fixing component, a lower fixing component, an outer support rod, an adjusting screw and an adjusting base; the outer support rod and the adjusting screw are arranged in parallel with each other, the adjusting base is sleeved on the bottom end of the outer support rod and the adjusting screw, and it can limit the positional relationship between the two at the bottom end of the outer support rod and the adjusting screw, the lower fixing component is arranged in the middle of the outer support rod and the adjusting screw, and its position can be adjusted up and down along the outer support rod and the adjusting screw, and the upper fixing component is arranged on the top of the outer support rod and the adjusting screw. The upper fixing component can be used to adjust the angle and position of the outer support rod in all directions and at multiple angles through the upper three-dimensional movable mechanism in cooperation with the lower fixing component, and the lower fixing component can be used to adjust the angle and position of the outer support rod in all directions and at multiple angles through the lower three-dimensional movable mechanism in cooperation with the upper fixing component. The adjustment of the angle and position of the outer support rod by the upper fixing component and the lower fixing component is achieved by adjusting the ball joint and the universal joint module. In this way, when the clinician uses it, the angle and position of the outer support rod can be adjusted to the angle actually required by the clinic, such as adjusting the outer support rod to an angle and position parallel to the imaginary line perpendicular to the patient's fracture plane. Secondly, the adjustment base can be precisely adjusted according to the fracture types and needs of different patients, so as to precisely control the distance between the upper fixing assembly and the lower fixing assembly. In actual use, as mentioned above, the angle of the outer support rod has been adjusted to the angle actually required in clinical practice, and the adjustment screw is parallel to the outer support rod. The doctor's adjustment of the distance between the sliders is precisely implemented at the angle actually required in clinical practice, and the doctor can control the adjustment amount of the distance. Therefore, when the distance between the upper fixing assembly and the lower fixing assembly is brought closer, the fracture section is precisely pressurized according to the angle and adjustment amount required by the doctor, and when the distance between the upper fixing assembly and the lower fixing assembly is pulled farther, the fracture gap is precisely opened according to the angle and adjustment amount required by the doctor. This can cope with the ever-changing fracture types in orthopedic clinical practice, and achieve precise pressurization, stretching and fixation for different fracture types, making the doctor's operation more concise and convenient. At the same time, the structural design of the upper platform module, the lower platform module, the upper external fixator clamp, and the lower external fixator clamp can flexibly adjust the use position. The overall placement of the orthopedic external fixator bracket can also be made more flexible. The doctor can first avoid blood vessels and nerves according to the actual situation of the patient's fracture and insert Shanz nails to install the external fixator. Then, according to the actual external fixation situation, the flexibility of the upper platform module, the lower platform module, the upper external fixator clamp, and the lower external fixator clamp can be used to flexibly place the orthopedic external fixator bracket on the external fixator. Then, by adjusting the angle of the external support rod and the distance between the upper fixing component and the lower fixing component, accurate external fixation, accurate pressurization and expansion of the fracture site can be achieved. In this way, blood vessels and nerves are avoided to reduce the occurrence of complications, and accurate external fixation, accurate pressurization and expansion are achieved. Thereby, the purpose of novel design, reasonable structure and good application effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A three-dimensional diagram of an orthopedic external fixator support capable of precise compression or expansion disclosed in Example 1;

[0020] Figure 2 for Figure 1 The main view of

[0021] Figure 3 for Figure 1 A top view of

[0022] Figure 4 for Figure 1 Side view of

[0023] Figure 5 This is a diagram showing the action state of the upper external fixator clamp in an orthopedic external fixator support capable of precise compression or expansion disclosed in Example 1;

[0024] Figure 6 This is a motion state diagram of an upper platform module in an orthopedic external fixator support capable of precise compression or expansion disclosed in Example 1;

[0025] Figure 7 This is a motion state diagram of an upper platform module in an orthopedic external fixator support capable of precise compression or expansion disclosed in Example 1;

[0026] Figure 8 This is a motion state diagram of a three-dimensional movable mechanism in an orthopedic external fixator support capable of precise compression or expansion disclosed in Example 1;

[0027] Fig. 9 This is a motion state diagram of an upper adjustment bolt in an orthopedic external fixator support capable of precise compression or expansion disclosed in Example 1;

[0028] Fig.10 This is a motion state diagram of the lower platform module in a support of an orthopedic external fixator capable of precise pressurization or expansion disclosed in Example 1;

[0029] Fig.11 This is a motion state diagram of the lower ball joint in an orthopedic external fixator support that can be precisely compressed or expanded as disclosed in Example 1;

[0030] Fig.12This is a motion state diagram of an adjusting screw in an orthopedic external fixator support capable of precise compression or expansion disclosed in Example 1;

[0031] Fig.13 A three-dimensional diagram of an orthopedic external fixator support capable of precise compression or expansion disclosed in Example 2;

[0032] Fig.14 for Fig.13 The main view of

[0033] Fig.15 for Fig.14 Side view of

[0034] Fig.16 This is a motion state diagram of a rotation module in an orthopedic external fixator support that can precisely pressurize or expand according to Embodiment 2.

[0035] The numbers in the figure represent the corresponding parts names:

[0036] 1. External support rod 2. Adjustment screw 3. Adjustment base 41. Upper adjustable slider 42. Support adjustment block 43. Universal joint module 44. Upper ball joint 45. Upper platform module 46. Upper adjustment bolt 47. Upper external fixator clamp 48. Upper joint locking bolt 51. Lower adjustable slider 52. Lower ball joint support 54. Lower ball joint 55. Lower platform module 56. Lower adjustment bolt 57. Lower external fixator clamp 58. Lower joint locking bolt 6. Base adjustment bolt 7. Lower adjustable slider locking bolt 8. Rotation module 9. Ball joint support 10. Rotation axis locking bolt DETAILED DESCRIPTION

[0037] 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, not all of the embodiments. 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.

[0038] The present invention is further described in detail below with reference to examples and specific implementation modes.

[0039] Example 1.

[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an orthopedic external fixator bracket capable of precise pressurization or expansion comprises an upper fixing assembly, a lower fixing assembly, an outer support rod 1, an adjusting screw 2 and an adjusting base 3; the outer support rod 1 and the adjusting screw 2 are arranged parallel to each other, the adjusting base 3 is sleeved on the bottom ends of the outer support rod 1 and the adjusting screw 2, and it can limit the positional relationship between the two at the bottom ends of the outer support rod 1 and the adjusting screw 2, the lower fixing assembly is arranged in the middle of the outer support rod 1 and the adjusting screw 2, and its position can be adjusted up and down along the outer support rod 1 and the adjusting screw 2, and the upper fixing assembly is arranged on the top of the outer support rod 1 and the adjusting screw 2;

[0041] The upper fixing assembly includes an upper adjustable slider 41, a support adjustment block 42, a universal joint module 43, an upper ball joint 44, an upper platform module 45, an upper adjustment bolt 46 and two upper external fixing frame clamps 47. The upper adjustable slider 41 is sleeved on the top of the external support rod 1 and the adjustment screw 2. The bottom of the support adjustment block 42 is fixed to the middle of the top surface of the upper adjustable slider 41. The rear end of the universal joint module 43 can be flipped and connected to the top of the support adjustment block 42. The ball head at the rear end of the upper ball joint 44 is embedded in the front end of the universal joint module 43. A waist-shaped hole is opened in the middle of the upper platform module 45 along its length, and the front end of the upper ball joint 44 is inserted forward in the waist-shaped hole. The upper adjusting bolt 46 is arranged at the front end surface of the upper ball joint 44, and the middle parts of the two upper external fixing frame clamps 47 are respectively sleeved on the bolts and vertically connected to the two ends of the front side surface of the upper platform module 45; the middle part of the upper external fixing frame clamp 47 is provided with a fixing hole in the front-to-back direction, and the side of the upper external fixing frame clamp 47 is provided with an external fixing frame clamping groove 11; the two ends of the front side of the upper platform module 45 are vertically connected to the front with fixing bolts, and the two fixing bolts are respectively tightly inserted in the fixing holes of the two upper external fixing frame clamps 47, and the position of the external fixing frame clamping groove 11 on the upper external fixing frame clamp 47 can be adjusted by twisting the upper external fixing frame clamp 47 to rotate around the fixing bolts;

[0042] The lower fixing assembly includes a lower adjustable slider 51, a lower ball joint support 52, a lower ball joint 54, a lower platform module 55, a lower adjusting bolt 56 and two lower external fixator clamps 57. The lower adjustable slider 51 is sleeved on the middle part of the outer support rod 1 and the adjusting screw 2. The rear end of the lower ball joint support 52 is rotatably connected to the middle part of the front side surface of the lower adjustable slider 51, and the ball head at the rear end of the lower ball joint 54 is embedded in the front end of the lower ball joint support 52; a waist-shaped hole is opened in the middle part of the lower platform module 55 along its length direction, and the front end head of the lower ball joint 54 is inserted forward into the waist-shaped hole, the lower adjusting bolt 56 is arranged at the front end surface of the lower ball joint 54, and the two lower external fixator clamps 57 are respectively sleeved on the bolts in the middle and vertically connected to the two ends of the front side surface of the lower platform module 55 forward. A fixing hole is provided in the middle of the lower external fixer clamp 57 in the front-to-back direction, and an external fixer clamping groove 11 is provided on the side of the lower external fixer clamp 57; both ends of the front side of the lower platform module 55 are vertically connected to the front with fixing bolts, and the two fixing bolts are tightly inserted into the fixing holes of the two lower external fixer clamps 57 respectively, and the orientation of the external fixer clamping groove 11 on the lower external fixer 57 can be adjusted by twisting the lower external fixer clamp 57 to rotate around the fixing bolts.

[0043] The top of the universal joint module 43 is provided with a screw hole from top to bottom, and an upper joint locking bolt 48 is inserted into the screw hole. After the upper joint locking bolt 48 is tightened, the screw end of the upper joint locking bolt 48 contacts and presses the ball head at the rear end of the upper ball joint 44, and the ball head at the rear end of the upper ball joint 44 is locked in the universal joint module 43, thereby realizing the function of locking the upper ball joint 44 here. The side of the lower ball joint support 52 is provided with a screw hole from outside to inside, and a lower joint locking bolt 58 is inserted into the screw hole. After the lower joint locking bolt 58 is tightened, the screw end of the lower joint locking bolt 58 contacts and presses the ball head at the rear end of the lower ball joint 54, and the ball head at the rear end of the lower ball joint 54 is locked in the lower ball joint support 52, thereby realizing the function of locking the lower ball joint 54 here.

[0044] Fig.12As shown, the bottom of the adjusting screw 2 is connected with a base adjusting bolt 6, and the adjusting screw 2 and the outer support rod 1 can be adjusted up and down along the lower adjustable slider 51 by turning the base adjusting bolt 6. This makes it possible to adjust the distance between the entire upper fixing assembly and the lower fixing assembly and the adjusting base 3 at the same time. Here, the bottom section of the adjusting screw 2 inserted into the adjusting base 3 is designed to have a smooth surface without threads on the circumferential surface, and the section of the top of the adjusting screw 2 inserted into the upper adjustable slider 41 is also designed to have a smooth surface without threads on the circumferential surface, so that when the base adjusting bolt 6 is turned and rotated, the lower adjustable slider 51 will move the other components of the lower fixing assembly up and down between the adjusting screw 2 and the outer support rod 1, thereby adjusting the distance between the entire upper fixing assembly and the adjusting base 3 of the lower fixing assembly. Of course, the entire circumferential surface of the adjusting screw 2 can also be designed as a full-threaded structure, that is, the positional relationship between the outer support rod 1, the adjusting screw 2 and the adjusting base 3 can be adjusted by rotating the base adjusting bolt 6 according to actual needs. No special limitations will be made here, and these also fall within the scope of protection of the present invention.

[0045] In actual operation, the external fixator bracket of the orthopedic external fixator bracket that can be precisely pressed or stretched is clamped with the external fixator clamping groove 11 on the upper external fixator clamp 47 (the function is to cooperate with the fixation of the fracture site, not marked in the figure), and the external fixator bracket and the entire orthopedic external fixator bracket are fixed. The upper external fixator clamp 47 is equivalent to bridging the external fixator bracket and the entire orthopedic external fixator bracket. The function of the lower external fixator clamp 57 is the same as that of the upper external fixator clamp 47. Figure 5 As shown in the figure, and referring to the arrow direction, the upper external fixator clamp 47 is characterized in that the angle of the external fixator clamping groove 11 can be adjusted by self-rotation on the upper platform module 45 as needed, thereby adjusting the tilt angle of the external fixator. Figure 6 As shown in FIG. 7 and referring to the direction of the arrow, the upper platform module 45 has a waist-shaped hole in the middle, and an upper adjustment bolt 46 is sleeved in the middle of the waist-shaped hole, so that the upper adjustment bolt 46 can be slid on the upper adjustment bolt 46 to adjust the position to be maintained in the left and right directions. After the position is adjusted, tighten the upper adjustment bolt 46 to fix it. As shown in FIG. 7 and referring to the direction of the arrow, the upper platform module 45 can also be brought by the upper external fixing frame clamp 47 with the upper adjustment bolt 46 as the axis, and rotated 360 degrees clockwise or counterclockwise to adjust the position to be maintained. After the position is adjusted, tighten the upper adjustment bolt 46 to lock and fix it to prevent rotation. Figure 8 As shown in the figure and referring to the arrow direction, the universal joint module 43 can be flipped up and down and left and right around the top of the support adjustment block 42, so that the upper external fixing frame clamp 47 can be driven to move up and down and left and right through the flipping at this place, thereby driving the external fixing frame to move up and down and left and right.

[0046] Since the upper ball joint 44 is connected to the universal joint module 43, the front upper platform module 45 and the upper external fixing frame clamp 47 can be adjusted as a whole with the upper ball joint 44 as the axis for three-dimensional rotation movement. The upper adjustment bolt 46 in front of the upper ball joint 44 can also lock the movement of the front end of the upper ball joint 44. The upper ball joint 44 is connected to the universal joint module 43 at the rear. This universal joint module 43 can make the front upper ball joint 44 and the upper platform module 45 connected thereto rotate in three dimensions as a whole. Fig. 9 As shown in the figure and referring to the direction of the arrow, an upper joint locking bolt 48 is provided above the universal joint module 43 , and the universal joint module 43 can be locked by tightening the upper joint locking bolt 48 .

[0047] like Fig.10 and Fig.11 As shown in the figure, and referring to the direction of the arrow, the lower ball joint 54 is connected to the lower ball joint support 52, so that the lower platform module 55 and the lower external fixation frame clamp 57 can be rotated in three dimensions as a whole with the lower ball joint 54 as the axis. The lower adjustment bolt 56 in front of the lower ball joint 54 can also lock the movement of the front end of the lower ball joint 54. The lower ball joint 54 is connected to the lower ball joint support 52 at the rear, and the lower ball joint 54 and the lower platform module 55 connected thereto can be turned up and down and left and right as a whole. At the same time, the lower joint locking bolt 58 inserted from the outside to the inside on the side of the lower ball joint support 52 can lock the movement of this part.

[0048] like Fig.12 As shown in the figure, and referring to the arrow direction, the outer support rod 1 and the adjusting screw 2 play an integral supporting role for the external fixator, have a certain strength, and can support the fractured limbs of the patient. The upper adjustable slider 41 and the lower adjustable slider 51 are passed through the outer support rod 1 and the adjusting screw 2 at the same time, and the upper fixing assembly and the lower fixing assembly are supported at the same time. The technical feature of the adjusting screw 2 is that a base adjusting bolt 6 is connected to its bottom, and when the base adjusting bolt 6 is turned, the lower adjustable slider 51 can be moved up and down along the direction of the outer support rod 1 and the adjusting screw 2 as a whole, and the greater the amplitude of turning the base adjusting bolt 6, the more the lower adjustable slider 51 moves. The lower adjustable slider 51 moves in different directions when the base adjusting bolt 6 is turned. After the position of the lower adjustable slider 51 is adjusted, the lower adjustable slider locking bolt 7 is inserted in the screw hole provided in the middle of the rear side of the lower adjustable slider 51, and the lower adjustable slider locking bolt 7 can be tightened to lock and fix the lower adjustable slider 51 on the outer support rod 1 and the adjusting screw 2. This fixes the position of the entire lower fixing assembly on the outer support rod 1 and the adjusting screw 2, and also fixes the spacing between the entire upper fixing assembly and the lower fixing assembly.

[0049] This example is mainly used in situations where an external fixator needs to be used across joints. At this time, the universal joint module 43 will correspond to the joint part of the patient's limbs. The doctor can adjust the universal joint module 43 to a suitable angle and position according to the joint condition of the patient's limbs to achieve the installation of the external fixator in the case of a cross-joint. At the same time, in conjunction with the upper ball joint 44 and the lower ball joint 54, the position of the external support rod 1 is adjusted. While being able to achieve sufficient stability in cross-joint fixation, not only can the joint position be stretched or pressurized according to the specific situation, but also the universal joint module 43 can be loosened for adjustment according to the specific situation of the patient. This can not only achieve accurate pressurization and stretching of the fracture site, but also meet the needs of a certain degree of joint activity.

[0050] Example 2.

[0051] like Figure 13-15 As shown, an orthopedic external fixator bracket capable of precise compression or expansion is provided, and the rest is the same as in Example 1, except that. The upper fixing assembly is composed of an upper adjustable slider 41, a rotating module 8, a ball joint support 9, an upper ball joint 44, an upper platform module 45, an upper adjusting bolt 46 and two upper external fixation frame clamps 47. The lower part of the rotating module 8 is provided with a rotating shaft, and the middle part of the upper part of the upper adjustable slider 41 is provided with a rotating hole. The rotating shaft of the rotating module 8 is inserted into the rotating hole of the upper adjustable slider 41. The top of the rotating module 8 is connected to the rear end of the ball joint support 9, and the ball head at the rear end of the upper ball joint 44 is embedded in the front end spherical cavity of the ball joint support 9; a waist-shaped hole is opened in the middle part of the upper platform module 45 along its length, and the front end head of the upper ball joint 44 is inserted forward into the waist-shaped hole, the upper adjusting bolt 46 is arranged at the front end surface of the upper ball joint 44, and the two upper external fixation frame clamps 47 are respectively sleeved on the bolt in the middle and vertically connected to the two ends of the front side surface of the upper platform module 45 forward.

[0052] The upper rear side of the upper adjustable slider 41 has a screw hole that is connected to the rotation hole and is perpendicular to the rotation hole. The rotation axis locking bolt 10 is inserted into the screw hole. When the rotation axis locking bolt 10 is tightened, the front end of the screw rod of the rotation axis locking bolt 10 can press against the rotation axis to lock the rotation module 8. The ball joint support 9 is connected to the upper ball joint 44. This ball joint support 9 can make the front upper ball joint 44 and the upper platform module 45 connected thereto rotate in three dimensions as a whole. Fig.16 As shown, the technical feature of the rotating module 8 is that it can drive the upper ball joint 44 loaded above and the upper platform module 45 to rotate together with the overall long axis as the axis. At the same time, the rotating axis locking bolt 10 set on the upper adjustable slider 41 can lock the rotating module 8 to prevent the rotation movement and fix its position.

[0053] This example is mainly considered to be applied to the following two scenarios: 1. The use of an external fixator for long bone shaft fractures. At this time, the doctor can use the rotating module 8, the upper ball joint 44 and the lower ball joint 54 to adjust the external support rod 1 to a suitable angle and position. While stabilizing the fracture site, the patient's limb fracture site can also be precisely stretched and pressurized according to the actual situation. 2. The use of an external fixator for bone transfer. Using this example, it is installed on both sides of the long bone that needs to be transferred, and the bone transfer is performed by using the characteristic of the bracket that can be accurately stretched. Compared with the conventional annular external frame for bone transfer, it has the following advantages: 1. Easy installation. The traditional annular external frame is very time-consuming and labor-intensive to install. It is necessary to repeatedly compare and adjust a lot of screws to the appropriate position through long screws, and there are certain requirements for the angle and direction of the opposing nails. When the frame is used in conjunction with the combined external fixator for fixation, the installation steps are simple and quick, and it can be accurately stretched. 2. The operation of this example is more convenient. You only need to loosen the lower adjustable slider locking bolt 7, then use a hexagonal wrench to turn the base adjusting bolt 6 to accurately adjust the spread distance, and then tighten the lower adjustable slider locking bolt 7. The traditional annular outer frame generally uses at least 4 long screws at the same time. Each time the spread is adjusted, at least 8 nuts must be turned to adjust, and the steps are relatively cumbersome.

[0054] The above two embodiments are designed with an upper fixing component, a lower fixing component, an outer support rod 1, an adjusting screw 2 and an adjusting base 3; the outer support rod 1 and the adjusting screw 2 are arranged parallel to each other, the adjusting base 3 is sleeved on the bottom ends of the outer support rod 1 and the adjusting screw 2, and it can limit the positional relationship between the two at the bottom ends of the outer support rod 1 and the adjusting screw 2, the lower fixing component is arranged in the middle of the outer support rod 1 and the adjusting screw 2, and its position can be adjusted up and down along the outer support rod 1 and the adjusting screw 2, and the upper fixing component is arranged on the top of the outer support rod 1 and the adjusting screw 2. The upper fixing component can be used to adjust the angle and position of the outer support rod in all directions and at multiple angles through the upper three-dimensional movable mechanism in cooperation with the lower fixing component, and the lower fixing component can be used to adjust the angle and position of the outer support rod in all directions and at multiple angles through the lower three-dimensional movable mechanism in cooperation with the upper fixing component. The upper and lower fixing components can adjust the angle and position of the outer support rod by adjusting the ball joint and the universal joint module. In this way, when a clinician uses it, the angle and position of the outer support rod can be adjusted to the angle actually required by the clinical practice, such as adjusting the outer support rod to an angle and position parallel to the imaginary line perpendicular to the patient's fracture plane. Secondly, the adjustment base can be accurately adjusted according to the fracture types and needs of different patients, so as to accurately control the distance between the upper fixing assembly and the lower fixing assembly. Since in actual use, as mentioned above, the angle of the outer support rod has been adjusted to the angle actually required by the clinical practice, and the adjustment screw is parallel to the outer support rod, the doctor's adjustment of the distance between the sliders is accurately implemented at the angle actually required by the clinical practice, and the doctor can control the adjustment amount of the distance. Therefore, when the upper fixing assembly and the lower fixing assembly are closer, the fracture section is accurately pressurized according to the angle and adjustment amount required by the doctor, and when the upper fixing assembly and the lower fixing assembly are farther apart, the fracture gap is accurately opened according to the angle and adjustment amount required by the doctor. Thereby, it is possible to cope with the ever-changing fracture types in orthopedic clinics, and to achieve accurate pressurization, stretching and fixation for different fracture types, making the doctor's operation more concise and convenient. At the same time, the structural design of the upper platform module, the lower platform module, the upper external fixator clamp, and the lower external fixator clamp can flexibly adjust the use position. It can also make the overall placement of this orthopedic external fixator bracket more flexible. The doctor can first avoid blood vessels and nerves according to the actual situation of the patient's fracture and place the external fixator by Shanz nails. Then, according to the actual external fixation situation, the flexibility of the upper platform module, the lower platform module, the upper external fixator clamp, and the lower external fixator clamp can be used to flexibly place the bracket of the orthopedic external fixator on the external fixator. Then, by adjusting the angle of the external support rod and the distance between the upper fixing component and the lower fixing component, accurate external fixation, accurate pressurization and expansion of the fracture site can be achieved. In this way, blood vessels and nerves are avoided to reduce the occurrence of complications, and accurate external fixation, accurate pressurization and expansion are achieved. Thereby achieving the purpose of novel design, reasonable structure, and good application effect.

[0055] The above is only a preferred embodiment of an orthopedic external fixator support capable of precise compression or expansion of the present invention. It should be noted that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An orthopedic external fixator bracket capable of accurate compression or expansion, characterized in that: It includes an upper fixing component, a lower fixing component, an outer support rod, an adjusting screw and an adjusting base; the outer support rod and the adjusting screw are arranged parallel to each other, the adjusting base is sleeved on the bottom ends of the outer support rod and the adjusting screw, and it can limit the positional relationship between the two at the bottom ends of the outer support rod and the adjusting screw, the lower fixing component is arranged in the middle of the outer support rod and the adjusting screw, and its position can be adjusted up and down along the outer support rod and the adjusting screw, and the upper fixing component is arranged on the top of the outer support rod and the adjusting screw; The upper fixing assembly comprises an upper three-dimensional movable mechanism, an upper platform module, an upper adjusting bolt and two upper external fixing frame clamps; the rear side of the upper three-dimensional movable mechanism is sleeved on the top end of the outer support rod and the adjusting screw, the middle part of the upper platform module is provided with a waist-shaped hole along its length direction, the front end head of the upper three-dimensional movable mechanism is inserted forward into the waist-shaped hole, and the upper adjusting bolt is arranged at the end face of the front end head of the upper three-dimensional movable mechanism; the middle part of the upper external fixing frame clamp is provided with a fixing hole in the front-to-back direction, and the side edge of the upper external fixing frame clamp is provided with an external fixing frame clamping groove; both ends of the front side of the upper platform module are vertically connected to the front with fixing bolts, and the two fixing bolts are respectively tightly inserted in the fixing holes of the two upper external fixing frame clamps, and the orientation of the external fixing frame clamping groove on the upper external fixing frame clamp can be adjusted by twisting the upper external fixing frame clamp to rotate around the fixing bolt; The lower fixing assembly comprises a lower three-dimensional movable mechanism, a lower platform module, a lower adjusting bolt and two lower external fixer clamps, the rear side of the lower three-dimensional movable mechanism is sleeved on the middle part of the outer support rod and the adjusting screw, the middle part of the lower platform module is provided with a waist-shaped hole along its length direction, the front end head of the lower three-dimensional movable mechanism is inserted forward into the waist-shaped hole, and the lower adjusting bolt is arranged at the end face of the front end head of the lower three-dimensional movable mechanism; the middle part of the lower external fixer clamp is provided with a fixing hole in the front-to-back direction, and the side of the lower external fixer clamp is provided with an external fixer clamping groove; both ends of the front side of the lower platform module are vertically connected to the front with fixing bolts, and the two fixing bolts are respectively tightly inserted in the fixing holes of the two lower external fixer clamps, and the orientation of the external fixer clamping groove on the lower external fixer can be adjusted by twisting the lower external fixer clamp to rotate around the fixing bolts.

2. An orthopedic external fixator support capable of precise compression or expansion according to claim 1, characterized in that: The upper three-dimensional movable mechanism includes an upper adjustable slider, a support adjustment block, a universal joint module and an upper ball joint. The upper adjustable slider is sleeved on the top of the outer support rod and the adjustment screw, the bottom of the support adjustment block is fixed to the middle of the top surface of the upper adjustable slider, the rear end of the universal joint module can be flipped and connected to the top of the support adjustment block, the ball head at the rear end of the upper ball joint is tightly embedded in the front end spherical cavity of the universal joint module, and when the front end of the upper ball joint is pulled, the ball head at the rear end can be flipped in three directions in the spherical cavity of the universal joint module.

3. The orthopedic external fixator support capable of accurate compression or expansion according to claim 2, characterized in that: The lower three-dimensional movable mechanism includes a lower adjustable slider, a lower ball joint support and a lower ball joint. The lower adjustable slider is sleeved on the middle part of the outer support rod and the adjusting screw. The rear end of the lower ball joint support is rotatably connected to the middle part of the front side surface of the lower adjustable slider. The ball head at the rear end of the lower ball joint is tightly embedded in the spherical cavity at the front end of the lower ball joint support, and when the front end of the lower ball joint is pulled, the ball head at the rear end can be flipped in three dimensions in the spherical cavity of the lower ball joint support.

4. The orthopedic external fixator support capable of accurate compression or expansion according to claim 3, characterized in that: The top of the universal joint module is provided with screw holes from top to bottom, and an upper joint locking bolt is inserted into the screw hole. After the upper joint locking bolt is tightened, the screw end of the upper joint locking bolt contacts and presses the ball head at the rear end of the upper ball head joint, and locks the ball head at the rear end of the upper ball head joint in the spherical cavity of the universal joint module.

5. The orthopedic external fixator support capable of accurate compression or expansion according to claim 4, characterized in that: The side of the lower ball joint support is provided with a screw hole from the outside to the inside, and a lower joint locking bolt is inserted into the screw hole. After the lower joint locking bolt is tightened, the screw end of the lower joint locking bolt contacts and presses the ball head at the rear end of the lower ball joint, and locks the ball head at the rear end of the lower ball joint in the spherical cavity of the lower ball joint support.

6. The orthopedic external fixator support capable of accurate compression or expansion according to claim 5, characterized in that: The bottom of the adjusting screw is connected with a base adjusting bolt, and the base adjusting bolt is turned to rotate so that the lower adjustable slider can move on the adjusting screw and the outer support rod to adjust its position.

7. The orthopedic external fixator support capable of accurate compression or expansion according to claim 2, characterized in that: The upper three-dimensional movable mechanism includes an upper adjustable slider, a rotating module and a ball joint support. A rotating shaft is provided at the lower part of the rotating module, and a rotating hole is provided at the middle of the upper part of the upper adjustable slider. The rotating shaft of the rotating module is inserted into the rotating hole of the upper adjustable slider, and the top of the rotating module is connected to the rear end of the ball joint support.

8. The orthopedic external fixator support capable of accurate compression or expansion according to claim 7, characterized in that: A screw hole connected to and perpendicular to the rotating hole is opened forward on the upper rear side of the upper adjustable slider, and a rotating shaft locking bolt is inserted in the screw hole. When the rotating shaft locking bolt is tightened, the front end of the screw rod of the rotating shaft locking bolt can press against the rotating shaft to lock the rotating module.

9. The orthopedic external fixator support capable of accurate compression or expansion according to claim 6, characterized in that: A screw hole is arranged in the middle of the rear side surface of the lower adjustable slide block, and a locking bolt of the lower adjustable slide block is inserted in the screw hole.

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