Adjustable distance orthopedic external fixation support

Abstract

The utility model provides a kind of distance-adjustable orthopedics external fixation support, including the distance adjusting block of two through holes being oppositely provided with inside, first connecting shaft and second connecting shaft are oppositely set in the through hole, first upper steering gear is threadedly connected with first connecting shaft, second upper steering gear is threadedly connected with second connecting shaft;The structure of the above fixed directly, the distance of fixed support can be adjusted by distance adjusting block, and the cooperation of spacing block and limiting groove between upper steering gear and fixed block can be used, and the thread between upper steering gear and connecting shaft, the rotating position of fixed block is flexibly adjusted, the leg of patient of different body shape is conveniently fixed, and medical staff is conveniently operated orthopedics surgery.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically relating to an adjustable-distance orthopedic external fixation brace. Background Technology

[0002] During orthopedic surgery, especially leg orthopedic surgery, in order to ensure the success rate of the operation, it is necessary to maintain the stability of the affected area and adjust the patient's position to a certain angle to facilitate the smooth operation of the procedure.

[0003] In clinical practice, patient positioning is often achieved by assistants helping doctors maintain the patient's position. However, prolonged manual support can lead to fatigue, affecting the stability of the patient's position during surgery and causing deviations or other issues. This makes it difficult to achieve the desired fixation, increases labor costs, and also increases the risks of the surgery.

[0004] The existing technology lacks corresponding surgical instruments to assist medical staff in fixing the body position. Therefore, whether an adjustable external fixation bracket can be provided has become one of the problems that the inventors urgently need to solve. Summary of the Invention

[0005] To address the problem of difficulty in fixing the patient's position during orthopedic surgery in existing technologies, this invention provides an adjustable-distance orthopedic external fixation bracket. The distance of the fixation bracket can be adjusted by a distance adjustment block, and the rotational position of the fixation block can be flexibly adjusted by utilizing the cooperation of the limiting block and limiting groove between the upper steering device and the fixation block, as well as the thread between the upper steering device and the connecting shaft.

[0006] The present invention provides an adjustable distance orthopedic external fixation bracket, comprising a distance adjustment block having two opposing through holes internally disposed therethrough, a first connecting shaft and a second connecting shaft being disposed through the through holes opposite to each other, the first connecting shaft having an external thread at one end on one side of the bottom fixing block, and a first upper steering device being threadedly connected to the first connecting shaft through its internal second internal thread; the second connecting shaft having an external thread at one end on the other side, and a second upper steering device being threadedly connected to the second connecting shaft through its internal third internal thread.

[0007] Through the engagement of the second internal thread with the external thread of the first connecting shaft, and the engagement of the third internal thread with the external thread of the second connecting shaft, the first upper steering gear can rotate around the first connecting shaft, and the second upper steering gear can rotate around the second connecting shaft.

[0008] The first upper steering gear has a threaded hole with internal threads extending through it vertically. The bottom fixing block has a threaded hole with internal threads corresponding to the threaded hole of the first upper steering gear. The second shank bolt is inserted through the threaded holes of the first upper steering gear and the bottom fixing block.

[0009] The second upper steering gear has a threaded hole with internal threads extending through it vertically. The top fixing block has a threaded hole with internal threads corresponding to the threaded hole of the second upper steering gear. The third shank bolt is inserted through the threaded holes of the second upper steering gear and the top fixing block. A first Velcro positioning groove is fixedly connected to the outer side of the bottom fixing block relative to the distance adjustment block, and a hemostatic connector is fixedly connected to the outer side of the top fixing block relative to the distance adjustment block. A second Velcro positioning groove is formed on the inner side of the hemostatic connector. The groove surface of the hemostatic connector is arc-shaped, and the groove of the hemostatic connector and the groove of the second Velcro positioning groove face opposite directions.

[0010] In use, the distance between the first and second connecting shafts is adjusted by the distance adjustment block and fixed by the first shank bolt. The hemostatic connector can be fixed on the hemostatic ring. The first and second Velcro positioning slots are fixed to the patient's legs by Velcro, thereby fixing the patient's position, improving stability, and reducing the risk of surgery.

[0011] The first upper steering gear and the bottom fixing block, as well as the second upper steering gear and the top fixing block, can be secured or released by tightening or loosening the bolts with handles.

[0012] Preferably, silicone caps are provided at the ends of the first connecting shaft on the opposite side of the bottom fixing block and at the ends of the second connecting shaft on the opposite side of the top fixing block, wherein the outer diameter of the silicone caps is larger than the diameter of the through hole.

[0013] The silicone cap prevents accidental slippage when adjusting the connecting shaft and also prevents injury to the human body.

[0014] Preferably, the through hole extends to both sides of the distance adjustment block and has openings. The height of the openings is less than the diameter of the through hole. The openings on both sides have two opposing screw holes with first internal threads in a direction perpendicular to the through hole. A first shank bolt is provided in the screw hole.

[0015] When the first shank bolt is tightened, the openings on both sides of the through hole deform, clamping the connecting shaft in the through hole. When the first shank bolt is loosened, the relative positions of the two connecting shafts in the through hole can be adjusted.

[0016] Preferably, the first shank bolt, the second shank bolt, and the third shank bolt are provided with external threads and bolt handles at their ends.

[0017] Preferably, the connection between the bottom fixing block and the first upper steering gear is cylindrical and has a screw hole inside. The side of the first upper steering gear facing the bottom fixing block has a raised first limiting block. The bottom fixing block has a first limiting groove that cooperates with the first limiting block. The first limiting groove and the first limiting block have a mutually cooperating concave-convex structure.

[0018] Preferably, the connection between the top fixing block and the second upper steering gear is cylindrical and has a screw hole inside. The side of the second upper steering gear facing the top fixing block has a raised second limiting block. The top fixing block has a second limiting groove that matches the second limiting block. The second limiting groove and the second limiting block have a mutually matching concave-convex structure.

[0019] Tighten the bolt with the handle downwards to make the limit block and the limit groove contact and engage, which can fix the rotational position between the fixed block and the upper steering gear. Loosen the bolt with the handle to release the contact and engagement between the limit block and the limit groove, which can make the fixed block rotate around the upper steering gear and adjust the rotational position.

[0020] The adjustable-distance orthopedic external fixator provided by this utility model achieves the following beneficial effects: 1) The upper steering gear and the connecting shaft are connected by a thread, and the rotational position of the upper steering gear relative to the connecting shaft can be adjusted by the thread; 2) A limit block is set on the upper steering gear, and limit grooves are set on the top and bottom fixing blocks respectively. The rotational position between the fixing block and the upper steering gear is further adjusted by the cooperation of the limit block and the limit groove. When the shank bolt on the upper steering gear is tightened, the limit block and the limit groove are in contact and engaged, and the two can no longer rotate. Loosening the shank bolt can adjust the rotational position of the two. Combined with the threaded connection between the upper steering gear and the connecting shaft, the position of the fixing block can be flexibly adjusted. 3) The distance and length of the orthopedic external fixator can be adjusted by the distance adjustment block and the bolt with handle on the distance adjustment block, which makes it convenient to fix the legs of patients of different body types and facilitates orthopedic surgery operations for medical staff; 4) A silicone cap is installed on the other side of the connecting shaft relative to the fixed block to prevent accidental slippage when adjusting the distance of the connecting shaft and to prevent injury to the human body. Attached Figure Description

[0021] Figure 1 A top view of an adjustable-distance orthopedic external fixator; Figure 2 A side view of an adjustable-distance orthopedic external fixator; Figure 3 This is a schematic diagram of the distance adjustment block; Figure 4 for Figure 2 Enlarged view of section A in the middle; Figure 5 This is a schematic diagram of the first limiting groove; Figure 6 This is a schematic diagram of the second limiting groove; Figure 7 This is a schematic diagram of the first limiting block; Figure 8 This is a schematic diagram of the second limiting block; Figure 9 This is a schematic diagram showing the usage of an adjustable-distance orthopedic external fixator.

[0022] Wherein: 1 is a distance adjustment block; 101 is a first internal thread; 102 is a through hole; 201 is a first connecting shaft; 202 is a second connecting shaft; 203 is a first connecting shaft external thread; 204 is a second connecting shaft external thread; 205 is a silicone cap; 301 is a first shank bolt; 302 is a second shank bolt; 303 is a third shank bolt; 304 is a bolt external thread; 305 is a bolt handle; 401 is a first upper steering mechanism; 402 is a second upper steering mechanism; 403 is a second internal thread; 404 is a first limiting block; 405 is a third internal thread; 406 is a second limiting block; 5 is a bottom fixing block; 501 is a first Velcro positioning groove; 502 is a first limiting groove; 6 is a top fixing block; 601 is a hemostatic connector; 602 is a second Velcro positioning groove; 603 is a second limiting groove; 7 is Velcro; 8 is a silicone ring; 9 is an elastic webbing sleeve; 10 is a surgical incision. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to specific embodiments. These embodiments are only used to illustrate the technical solution of this utility model in more detail and should not be construed as limiting the scope of protection of this utility model.

[0024] Figure 1 and Figure 2The images show a top view and a side view of an adjustable-distance orthopedic external fixator. The orthopedic external fixator includes a distance adjustment block 1 with two through holes 102 facing each other inside. A first connecting shaft 201 and a second connecting shaft 202 are disposed through the through holes 102. The end of the first connecting shaft 201 is provided with a first connecting shaft external thread 203. A first upper steering device 401 is threaded to the first connecting shaft 201 through its internal second internal thread 403. The other end of the second connecting shaft 202 is provided with a second connecting shaft external thread 204. The second upper steering device 402 is threaded to the second connecting shaft 202 through its internal third internal thread 405. Through the cooperation of the second internal thread 403 and the first connecting shaft external thread 203, and the cooperation of the third internal thread 405 and the second connecting shaft external thread 204, the first upper steering device 401 can rotate around the first connecting shaft 201, and the second upper steering device 402 can rotate around the second connecting shaft 202.

[0025] Silicone caps 205 are provided on the other end of the upper steering gear to which the two connecting shafts are connected. The outer diameter of the silicone caps 205 is larger than the diameter of the through hole 102 to prevent accidental slippage when adjusting the connecting shafts and to prevent injury to the human body.

[0026] The first upper steering gear 401 has a threaded hole with internal threads extending through it vertically. The bottom fixing block 5 has a threaded hole with internal threads corresponding to the threaded hole of the first upper steering gear 401. The second shank bolt 302 is inserted through the threaded holes of the first upper steering gear 401 and the bottom fixing block 5.

[0027] The second upper steering gear 402 has a threaded hole with internal threads extending through it vertically. The top fixing block 6 has a threaded hole with internal threads corresponding to the threaded hole of the second upper steering gear 402. The third shank bolt 303 is inserted through the threaded holes of the second upper steering gear 402 and the top fixing block 6.

[0028] A first Velcro positioning groove 501 is fixedly connected to the outer side of the bottom fixing block 5 relative to the distance adjustment block 1, and a hemostatic connector 601 is fixedly connected to the outer side of the top fixing block 6 relative to the distance adjustment block 1. A second Velcro positioning groove 602 is formed on the inner side of the hemostatic connector 601. The groove surface of the hemostatic connector 601 is arc-shaped, and the groove of the hemostatic connector 601 and the groove of the second Velcro positioning groove 602 face opposite directions.

[0029] like Figure 3As shown, the through hole 102 extends to both sides of the distance adjusting block 1 with openings whose height is less than the diameter of the through hole 102. Two opposing screw holes are provided on the openings in a direction perpendicular to the through hole 102. The screw holes are provided with a first internal thread 101. A first shank bolt 301 is provided in each of the two screw holes. When the first shank bolt 301 is tightened, the openings on both sides of the through hole 102 are deformed, clamping the connecting shaft in the through hole 102. When the first shank bolt 301 is loosened, the relative position of the two connecting shafts in the through hole 102 can be adjusted.

[0030] The first shank bolt 301, the second shank bolt 302 and the third shank bolt 303 are provided with bolt external threads 304 and bolt handles 305 at their ends.

[0031] like Figures 4 to 8 As shown, the connection between the bottom fixing block 5 and the first upper steering gear 401 is cylindrical with a screw hole inside. The side of the first upper steering gear 401 facing the bottom fixing block 5 has a protruding first limiting block 404. The bottom fixing block 5 is provided with a first limiting groove 502 corresponding to the first limiting block 404. The first limiting groove 502 and the first limiting block 404 have a mutually cooperating concave-convex structure. When the second shank bolt 30, which is located inside the first upper steering gear 401 and the bottom fixing block 5, is tightened... At time 2, the first limiting block 404 on the first upper steering gear 401 moves towards the bottom fixing block 5 and presses against the first limiting groove 502. Since the first limiting groove 502 and the first limiting block 404 have a mutually cooperating concave-convex structure, the first upper steering gear 401 and the bottom fixing block 5 no longer rotate at this time. When the second shank bolt 302 is loosened, the first limiting block 404 and the first limiting groove 502 no longer contact each other, and the bottom fixing block 5 and the first upper steering gear 401 can rotate relative to each other at this time.

[0032] The connection between the top fixing block 6 and the second upper steering gear 402 is cylindrical with a screw hole inside. The side of the second upper steering gear 402 facing the top fixing block 6 has a protruding second limiting block 406. The top fixing block 6 has a corresponding second limiting groove 603 that mates with the second limiting block 406. Both the second limiting groove 603 and the second limiting block 406 have mutually engaging concave-convex structures. When the third shank bolt 303 located inside the second upper steering gear 402 and the top fixing block 6 is tightened... The second limiting block 406 on the second upper steering gear 402 moves toward the top fixing block 6 and presses against the second limiting groove 603. Since both the second limiting groove 603 and the second limiting block 406 have mutually cooperating concave and convex structures, the second upper steering gear 402 and the top fixing block 6 no longer rotate at this time. When the third shank bolt 303 is loosened, the second limiting block 406 and the second limiting groove 603 no longer contact each other, and the top fixing block 6 and the second upper steering gear 402 can rotate relative to each other at this time.

[0033] like Figure 9 As shown, the adjustable-distance orthopedic external fixator is used in conjunction with a hemostatic ring. Specifically, it can be a surgical film with hemostatic function as described in CN219147921U. The surgical film includes an elastic sleeve 9, one end of which is closed, and the other end of which has an external opening connected to a silicone ring 8 and a tension rope.

[0034] Pull the tension rope along the patient's limb towards the proximal end. The silicone ring 8 drives the elastic webbing 9 to cover the patient's limb until it reaches the end of the surgical site. After completing the hemostasis fixation, fasten the corresponding slot on the hemostasis connector 601 onto the silicone ring 8. Adjust the rotational position between the second upper steering device 402 and the second connecting shaft 202 on one side of the top fixing block 6 by adjusting the threaded engagement. When the third shank bolt 303 is loosened, adjust the rotational position between the second upper steering device 402 and the top fixing block 6. After the adjustment is appropriate, tighten the third shank bolt 303 to fix the rotational position. Then, wrap the Velcro 7 around the patient's leg and fix it to the second Velcro positioning groove 602. The bottom of the Velcro 7 has the elastic webbing 9 on the hemostasis ring 8, which will not irritate the skin.

[0035] Then loosen the first shank bolt 301 on the distance adjustment block 1, adjust the distance between the first connecting shaft 201 and the second connecting shaft 202 relative to the distance adjustment block 1, and tighten the first shank bolt 301 on the distance adjustment block 1 to fix it.

[0036] Then, by adjusting the threaded engagement between the first upper steering mechanism 401 and the first connecting shaft 201 on one side of the bottom fixing block 5, the rotational position between the first upper steering mechanism 401 and the first connecting shaft 201 is adjusted. When the corresponding second shank bolt 302 is loosened, the rotational position between the first upper steering mechanism 401 and the bottom fixing block 5 is adjusted. After the adjustment is appropriate, the second shank bolt 302 is tightened to fix the rotational position. The other Velcro 7 is then wrapped around the patient's leg and the first Velcro positioning groove 501 to complete the fixation.

[0037] After fixation is completed, the surgical procedure is performed at the surgical incision site 10.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any equivalent substitutions or modifications made by those skilled in the art within the spirit and principle of the present utility model without any creative effort shall be included within the protection scope of the present utility model.

Claims

1. An adjustable-distance orthopedic external fixator, characterized in that: The device includes a distance adjusting block (1) with two through holes (102) arranged opposite each other inside. A first connecting shaft (201) and a second connecting shaft (202) are disposed in the through holes (102). The end of the first connecting shaft (201) is provided with a first connecting shaft external thread (203). The first upper steering gear (401) is threadedly connected to the first connecting shaft (201) through its internal second internal thread (403). The second connecting shaft (202) is provided with a second connecting shaft external thread (203) at the other end. 04), the second upper steering gear (402) is threadedly connected to the second connecting shaft (202) through its internal third internal thread (405). Through the cooperation of the second internal thread (403) and the first connecting shaft external thread (203), and the cooperation of the third internal thread (405) and the second connecting shaft external thread (204), the first upper steering gear (401) can rotate around the first connecting shaft (201), and the second upper steering gear (402) can rotate around the second connecting shaft (202).

2. The adjustable-distance orthopedic external fixator according to claim 1, characterized in that: The first upper steering gear (401) has a threaded hole with internal thread through it from top to bottom. The bottom fixing block (5) has a threaded hole with internal thread corresponding to the threaded hole of the first upper steering gear (401). The second shank bolt (302) is installed through the threaded holes of the first upper steering gear (401) and the bottom fixing block (5). The second upper steering gear (402) has a threaded hole with internal threads through it from top to bottom. The top fixing block (6) has a threaded hole with internal threads corresponding to the threaded hole of the second upper steering gear (402). The third shank bolt (303) is installed through the threaded holes of the second upper steering gear (402) and the top fixing block (6).

3. The adjustable-distance orthopedic external fixator according to claim 2, characterized in that: A first Velcro positioning groove (501) is fixedly connected to the outer side of the bottom fixing block (5) relative to the distance adjustment block (1), and a hemostatic connector (601) is fixedly connected to the outer side of the top fixing block (6) relative to the distance adjustment block (1). A second Velcro positioning groove (602) is formed on the inner side of the hemostatic connector (601). The groove surface of the hemostatic connector (601) is arc-shaped, and the groove of the hemostatic connector (601) and the groove of the second Velcro positioning groove (602) face opposite directions.

4. The adjustable-distance orthopedic external fixator according to claim 1, characterized in that: Silicone caps (205) are provided on the other end of the upper steering gear to which the two connecting shafts are connected, and the outer diameter of the silicone caps (205) is larger than the diameter of the through hole (102).

5. The adjustable-distance orthopedic external fixator according to claim 1, characterized in that: The through hole (102) extends to both sides of the distance adjustment block (1) with an opening whose height is smaller than the diameter of the through hole (102). Two opposing screw holes are provided on the opening in a direction perpendicular to the through hole (102). The screw holes are provided with a first internal thread (101). A first shank bolt (301) is provided in both screw holes.

6. The adjustable-distance orthopedic external fixator according to claim 5, characterized in that: The first shank bolt (301), the second shank bolt (302) and the third shank bolt (303) are provided with bolt external threads (304) and bolt handles (305) at their ends.

7. The adjustable-distance orthopedic external fixator according to claim 1, characterized in that: The connection between the bottom fixing block (5) and the first upper steering gear (401) is cylindrical and has a screw hole inside. The side of the first upper steering gear (401) facing the bottom fixing block (5) has a raised first limiting block (404). The bottom fixing block (5) is provided with a first limiting groove (502) corresponding to the first limiting block (404). The first limiting groove (502) and the first limiting block (404) have a mutually cooperating concave-convex structure.

8. The adjustable-distance orthopedic external fixator according to claim 1, characterized in that: The connection between the top fixing block (6) and the second upper steering device (402) is cylindrical and has a screw hole inside. The side of the second upper steering device (402) facing the top fixing block (6) has a raised second limiting block (406). The top fixing block (6) is provided with a second limiting groove (603) corresponding to the second limiting block (406). The second limiting groove (603) and the second limiting block (406) have a mutually cooperating concave-convex structure.

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