CN210784618U - External fixing bracket for transverse moving of tibia - Google Patents

Abstract

The utility model discloses a shin bone violently removes external fixation support, including location guide pin, violently draw spicule, horizon bar, fixed block and altitude mixture control frame, the fixed block level sets up, and the horizon bar runs through the fixed block, the location guide pin is several, and the vertical connection in the horizon bar both sides of several location guide pins, violently draw the spicule to be two, runs through the fixed block bottom two violently draw the spicule, the top all with altitude mixture control frame links to each other, violently draw the spicule to adjust the distance of self and shin bone through altitude mixture control frame, all is connected with the nut at the top and the horizon bar both ends of location guide pin, violently draw the spicule. The fixing support can protect healthy limbs of a patient from being bruised by the steel needle of the support, relieve the pain of the patient and avoid the occurrence of secondary infection.

Description

A tibial lateral transfer external fixation bracket

technical field

The utility model relates to an orthopedic treatment auxiliary tool, in particular to a tibia laterally moving external fixation bracket.

Background technique

Tibial lateral transport, also known as bone transport, or bone transport, is the standard treatment for large segmental bone defects at this stage. At present, the exposed ends of the four steel needles of the existing tibial lateral external fixator are metal cylindrical steel needles, and the force-bearing area is small. For patients who need to use this type of stent clinically, the use site is on the inner side of the tibia (interior of the patient). , The wearing time is long (about two months), so it is common in clinical practice that when a patient walks with a stent, the pillar steel needle on the patient's stent is easy to bruise the healthy limb, which increases the pain for the patient and increases the possibility of re-infection.

Utility model content

In order to solve the above-mentioned technical problems, the utility model discloses an external fixation bracket for lateral movement of the tibia, which can protect the healthy limbs of the patient from being bruised by the pillar steel needle, relieve the pain of the patient, and avoid the occurrence of re-infection.

The utility model is realized through the following technical solutions:

A tibia laterally moving external fixation bracket, comprising a positioning guide pin, a transverse pulling pin, a horizontal rod, a fixing block and a height adjusting frame, the fixing block is arranged horizontally, the horizontal rod runs through the fixing block, and the positioning guide pins are several, Several positioning guide pins are vertically connected on both sides of the horizontal rod. There are two horizontal pins. The bottoms of the two pins pass through the fixing block, and the tops are connected to the height adjustment frame. The height adjustment frame adjusts the distance between itself and the tibia, and nuts are connected to the top of the positioning guide pin, the top of the horizontal pulling pin and the two ends of the horizontal rod.

In the utility model, the positioning guide needle is used to puncture the tibia to fix the entire fixing bracket, the horizontal pulling needle is used to puncture the bone block, and the bone block is gradually pulled horizontally under the action of the height adjustment frame, and the bone block is moved laterally to promote blood vessels. Mesh regeneration, the regenerated vascular network also provides fresh blood to the bone defect to promote bone regeneration. Positioning the guide pin, the top of the horizontal pulling pin, and the nuts set at both ends of the horizontal rod will not significantly increase the total weight of the fixing bracket. , increase the force-bearing area of the positioning guide pin, the horizontal pulling pin and the end of the horizontal rod, reduce or avoid the injury of the healthy limb during the wearing process of the patient, the design of the nut does not affect the installation and removal of the bracket, but also can reduce the pain of the patient and avoid Occurrence of reinfection.

Further, the top of the positioning guide pin, the horizontal pulling pin and the two ends of the horizontal rod are provided with threads that match the nut, and the top surface of the nut is level with the top surface of the positioning guide pin and the horizontal pulling pin, and is connected with the horizontal rod. The outer end face of the nut is flush with the end face of the horizontal rod.

Further, the nut is a hexagonal nut, the outer diameter of the hexagonal nut is 0.5-1 cm, and the nut jacket is provided with an elastic buffer layer.

Further, the height adjustment frame includes an adjustment block and an adjustment screw, the adjustment block is arranged in parallel above the fixed block, the adjustment block is connected with the two horizontal pulling pins, the bottom of the adjustment screw runs through the adjustment block and the fixed block, and the adjustment screw is connected to the fixed block. The fixing blocks are connected through a screw thread and a screw hole structure.

Further, the upper half of the adjusting screw is fixedly connected with a positioning ring, the middle of the adjusting block is provided with a through hole for the adjusting screw to pass through, and the inner wall of the middle of the through hole has a circular cavity recessed towards the outer periphery, and the positioning ring is clamped. Set in the circular cavity, the screw rod and the positioning ring can rotate freely in the through hole and the circular cavity.

Further, the adjusting block is connected with the horizontally drawn bone needle through a thread.

Further, the bottom of the transversely pulling bone pin is provided with a thread, and the transversely pulling bone pin can move up and down relative to the fixing block.

In the present utility model, after installing the fixing bracket, if the bone block needs to be moved horizontally, the top of the adjusting screw is rotated by a wrench and other tools, the screw is moved upward relative to the fixing block, and the positioning ring connected with the screw pushes the adjusting block to move upward, thereby driving the adjustment block to move up. Two horizontally-pulled bone pins are used to realize the horizontal transfer of bone fragments, and a scale line can be set on the top of the screw to facilitate the adjustment of the horizontal transfer distance.

Further, the positioning guide pin and the horizontal rod are connected by bolts.

Further, the height of the top surface of the adjusting screw is smaller than the height of the top surface of the horizontal broach, and the top of the adjusting screw is in the shape of a quadrangular prism. It is convenient to use a wrench to rotate the adjusting screw, thereby realizing the lateral movement of the bone fragment.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

The utility model relates to a laterally moving external fixation bracket for the tibia. The positioning guide needle is used for puncturing the tibia to fix the entire fixing bracket. The lateral pulling bone needle is used for puncturing the bone block, and the bone block is gradually pulled horizontally under the action of the height adjusting frame. , The lateral transfer of the bone block promotes the regeneration of the vascular network, and the regenerated vascular network also provides fresh blood for the bone defect to promote bone regeneration. Under the premise of fixing the total weight of the bracket, increase the force-bearing area of the positioning guide pin, the horizontal pulling pin and the end of the horizontal rod, so as to reduce or avoid the injury of the healthy limb during the wearing process of the patient. The design of the nut does not affect the installation and removal of the bracket. It can also reduce the suffering of patients and avoid the occurrence of re-infection.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, and constitute a part of the present application, and do not constitute a limitation to the embodiments of the present invention. In the attached image:

Fig. 1 is the structural representation of the utility model;

Figure 2 is a cross-sectional view of the adjusting block of the present invention.

The marks in the attached drawings and the corresponding parts names:

1-Positioning guide pin, 2-Horizontal pulling pin, 3-Horizontal rod, 4-Fixing block, 5-Height adjusting frame, 51-Adjusting block, 52-Adjusting screw, 53-Locating ring, 54-Through hole, 55 - Circular cavity, 6-tibia, 7-nut.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be described in further detail below in conjunction with the embodiments and the accompanying drawings. The invention is not intended to limit the present invention.

Example 1

As shown in Figures 1 and 2, a tibia 6 laterally moving external fixation bracket includes a positioning guide pin 1, a transverse pulling pin 2, a horizontal rod 3, a fixing block 4 and a height adjusting frame 5, and the fixing block 4 is arranged horizontally , the horizontal rod 3 runs through the fixing block 4, the positioning guide pins 1 are several, and the several positioning guide pins 1 are vertically connected on both sides of the horizontal rod 3, and the horizontal pulling pins 2 are two, two horizontal pulling pins The bottom of the needle 2 runs through the fixing block 4, and the top is connected with the height adjustment frame 5. The horizontal pulling bone needle 2 adjusts the distance between itself and the tibia 6 through the height adjustment frame 5. At the top of the positioning guide needle 1 and the horizontal pulling bone needle 2 And both ends of the horizontal rod 3 are connected with nuts 7 .

Further, the top of the positioning guide pin 1, the horizontal rod 2 and the two ends of the horizontal rod 3 are provided with threads matching the nut 7, and the top surface of the nut 7 is connected to the top of the positioning guide pin 1 and the horizontal rod 2. The outer surface of the nut 7 connected with the horizontal rod 3 is flat with the end surface of the horizontal rod 3 .

Further, the nut 7 is a hexagonal nut 7, the outer diameter of the hexagonal nut 7 is 0.5-1 cm, and the outer shell of the nut 7 is provided with an elastic buffer layer.

Further, the height adjustment frame 5 includes an adjustment block 51 and an adjustment screw 52. The adjustment block 51 is arranged in parallel above the fixed block 4, and the adjustment block 51 is connected with the two horizontal pull pins 2. The bottom of the adjustment screw 52 runs through the adjustment. The block 51 is connected with the fixing block 4, and the adjusting screw 52 is connected with the fixing block 4 through a screw thread and a screw hole structure.

Further, the upper half of the adjusting screw 52 is fixedly connected with a positioning ring 53, the middle of the adjusting block 51 is provided with a through hole 54 for the adjusting screw 52 to pass through, and a circular cavity is recessed from the inner wall of the middle of the through hole 54 to the outer periphery. 55 , the positioning ring 53 is clamped in the circular cavity 55 , and the screw rod and the positioning ring 53 can rotate freely in the through hole 54 and the circular cavity 55 .

Example 2

As shown in Figures 1 and 2, a tibia 6 laterally moving external fixation bracket includes a positioning guide pin 1, a transverse pulling pin 2, a horizontal rod 3, a fixing block 4 and a height adjusting frame 5, and the fixing block 4 is arranged horizontally , the horizontal rod 3 runs through the fixing block 4, the positioning guide pins 1 are several, and the several positioning guide pins 1 are vertically connected on both sides of the horizontal rod 3, and the horizontal pulling pins 2 are two, two horizontal pulling pins The bottom of the needle 2 runs through the fixing block 4, and the top is connected with the height adjustment frame 5. The horizontal pulling bone needle 2 adjusts the distance between itself and the tibia 6 through the height adjustment frame 5. At the top of the positioning guide needle 1 and the horizontal pulling bone needle 2 And both ends of the horizontal rod 3 are connected with nuts 7 .

Further, the top of the positioning guide pin 1, the horizontal rod 2 and the two ends of the horizontal rod 3 are provided with threads matching the nut 7, and the top surface of the nut 7 is connected to the top of the positioning guide pin 1 and the horizontal rod 2. The outer surface of the nut 7 connected with the horizontal rod 3 is flat with the end surface of the horizontal rod 3 .

Further, the nut 7 is a hexagonal nut 7, the outer diameter of the hexagonal nut 7 is 0.5-1 cm, and the outer shell of the nut 7 is provided with an elastic buffer layer.

Further, the height adjustment frame 5 includes an adjustment block 51 and an adjustment screw 52. The adjustment block 51 is arranged in parallel above the fixed block 4, and the adjustment block 51 is connected with the two horizontal pull pins 2. The bottom of the adjustment screw 52 runs through the adjustment. The block 51 is connected with the fixing block 4, and the adjusting screw 52 is connected with the fixing block 4 through a screw thread and a screw hole structure.

Further, the upper half of the adjusting screw 52 is fixedly connected with a positioning ring 53, the middle of the adjusting block 51 is provided with a through hole 54 for the adjusting screw 52 to pass through, and a circular cavity is recessed from the inner wall of the middle of the through hole 54 to the outer periphery. 55 , the positioning ring 53 is clamped in the circular cavity 55 , and the screw rod and the positioning ring 53 can rotate freely in the through hole 54 and the circular cavity 55 .

Further, the adjusting block 51 is connected with the transversely pulling bone pin 2 through threads.

Further, the bottom of the transversely pulling bone pin 2 is provided with a thread, and the transversely pulling bone pin 2 can move up and down relative to the fixing block 4 .

Further, the positioning guide needle 1 and the horizontal rod 3 are connected by bolts.

Further, the height of the top surface of the adjusting screw 52 is smaller than the height of the top surface of the horizontal pulling pin 2, and the top of the adjusting screw 52 is in the shape of a quadrangular prism.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention The protection scope of the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims (9)

1. A tibia (6) laterally moving external fixation bracket, is characterized in that, comprises positioning guide pin (1), transverse pulling bone pin (2), horizontal rod (3), fixing block (4) and height adjustment frame ( 5), the fixing block (4) is arranged horizontally, the horizontal rod (3) runs through the fixing block (4), the positioning guide pins (1) are several, and the several positioning guide pins (1) are vertically connected to the horizontal rod. (3) On both sides, there are two horizontally-pulled studs (2), the bottoms of the two horizontally-pulled studs (2) penetrate the fixing block (4), and the tops are connected to the height adjustment frame (5). The bone pulling pin (2) adjusts the distance between itself and the tibia (6) through the height adjustment frame (5), and is connected with the positioning guide pin (1), the top of the transverse pulling pin (2) and both ends of the horizontal rod (3). There is a nut (7). 2. A tibia (6) laterally moving external fixation bracket according to claim 1, wherein the positioning guide pin (1), the top end of the transversely pulling bone pin (2) and the horizontal rod (3) are two. Both ends are provided with threads matching the nut (7), the top surface of the nut (7) is flush with the top surface of the positioning guide pin (1) and the horizontal pulling pin (2), and the nut (7) connected with the horizontal rod (3) ) is flush with the end face of the horizontal rod (3). 3. a kind of tibia (6) laterally moving external fixation bracket according to claim 1, is characterized in that, described nut (7) is hexagonal nut (7), and hexagonal nut (7) outer diameter is 0.5-1cm, The outer casing of the nut (7) is provided with an elastic buffer layer. 4. A tibia (6) laterally moving external fixation bracket according to claim 1, wherein the height adjustment frame (5) comprises an adjustment block (51) and an adjustment screw (52), and the adjustment block (51) ) is arranged in parallel above the fixing block (4), the adjusting block (51) is connected with the two horizontally pulled bone pins (2), and the bottom of the adjusting screw (52) runs through the adjusting block (51) and the fixing block (4), adjusting the The screw rod (52) is connected with the fixing block (4) through a screw thread and a screw hole structure. 5. A tibia (6) laterally moving external fixation bracket according to claim 4, wherein the upper half of the adjustment screw (52) is fixedly connected to a positioning ring (53), and the adjustment block (51) ) in the middle is provided with a through hole (54) for the adjusting screw (52) to pass through, a circular cavity (55) is recessed from the inner wall of the middle of the through hole (54) to the outer circumference, and the positioning ring (53) is clamped in the circular cavity (55). In the cavity (55), the screw rod and the positioning ring (53) can rotate freely in the through hole (54) and the circular cavity (55). 6 . The tibia ( 6 ) laterally moving external fixation bracket according to claim 5 , wherein the adjusting block ( 51 ) is connected with the lateral pulling pin ( 2 ) through threads. 7 . 7. A kind of tibia (6) laterally moving external fixation bracket according to claim 1, characterized in that, the bottom of the laterally-pulled bone pin (2) is provided with threads, and the laterally-pulled bone pin (2) can be relatively fixed block (4) Move up and down. 8 . The tibia ( 6 ) laterally moving external fixation bracket according to claim 1 , wherein the positioning guide pin ( 1 ) and the horizontal rod ( 3 ) are connected by bolts. 9 . 9. A tibia (6) laterally moving external fixation bracket according to claim 5, wherein the top surface height of the adjusting screw (52) is less than the top surface height of the horizontal pulling pin (2), and the adjusting screw (52) 52) The top is in the shape of a quadrangular prism.

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