WO2020082249A1

WO2020082249A1 - Orthopedic stabilizing device

Info

Publication number: WO2020082249A1
Application number: PCT/CN2018/111527
Authority: WO
Inventors: 周小钢
Original assignee: 周小钢
Priority date: 2018-10-22
Filing date: 2018-10-24
Publication date: 2020-04-30
Also published as: CN209253271U

Abstract

An orthopedic stabilizing device, comprising flat arc-shaped tube bodies (1), arc-shaped plate bodies (2) and arc-shaped pressing plates (3), three arc-shaped tube bodies (1), three arc-shaped plate bodies (2) and three arc-shaped pressing plates (3) being provided; the arc-shaped tube bodies (1) and the arc-shaped plate bodies (2) are disposed adjacent to each other in a circular arrangement, two ends of one arc-shaped plate body (2) being movably inserted at the interior of end portions of two adjacent arc-shaped tube bodies (1); a plurality of tooth grooves (6) are evenly provided on outer side surfaces of the arc-shaped plate bodies (2), and outer side surfaces of the arc-shaped tube bodies (1) are symmetrically provided near two ends thereof with snap-in pieces (7) matching the tooth grooves (6). The stabilizing device has a stable structure, may effectively prevent the entire device from loosening, has a better stabilizing effect, is more convenient to use, and is constantly in an integrated state without having to be reassembled every time the device is used, being convenient and fast to use; both large adjustment and fine adjustment may be performed to achieve precise adjustment, and the device stabilizes fractures well and is beneficial in better healing the bones of a patient.

Description

Fixing device for orthopedics

Technical field

The utility model relates to the technical field of medical equipment, in particular to a fixing device for orthopedics.

Background technique

Orthopedics is one of the most common departments in major hospitals. It mainly studies the anatomy, physiology and pathology of the skeletal and muscular system. It uses drugs, surgery and physical methods to maintain and develop the normal shape and function of this system. With the changes of the times and society, the orthopedic injury spectrum has changed significantly. For example, bone and joint tuberculosis, osteomyelitis, polio and other diseases have been significantly reduced, and the trauma caused by traffic accidents has increased significantly.

In traffic accidents, the most common is limb fractures. During the journey of patients with limb fractures to the hospital, the fractured limbs of the fractured patients need to be temporarily fixed to prevent secondary injury, but the existing orthopedic fixation devices, The structure is unstable, the whole device is easy to loose, and it is cumbersome to use. It needs to be reassembled each time it is used. At the same time, the existing orthopedic fixation device can only be adjusted greatly and not finely adjusted. The precision of adjustment is poor. Fracture fixation is not good, which is not conducive to better healing of the bones of the patients, and it is easy to cause secondary injuries to the patients. The fractured bones of the affected limbs are easily punctured by the broken bones, which seriously increases the patient's pain.

Utility model content

The purpose of the utility model is to provide a fixation device for orthopedics, which has a stable structure, can effectively prevent the entire device from loosening, has a good fixation effect, is more convenient to use, is always in a whole, and does not need to be reassembled every time it is used, which is convenient and fast , Can make large adjustments and fine adjustments, so as to achieve precise adjustments, better fixation of fractures, can avoid patients from secondary injuries, the fractures of the affected limbs are not easy to be punctured by broken bones, effectively reduce patients' pain, and benefit patients The bones are better healed to solve the problems raised in the above background art.

In order to achieve the above object, the present invention provides the following technical solution: An orthopedic fixation device includes a flat arc-shaped tube body and an arc-shaped plate body and an arc-shaped pressure plate, the arc-shaped tube body and the arc-shaped plate The body and the arc-shaped pressure plate are provided with three each, the arc-shaped tube body and the arc-shaped plate body are arranged adjacent to each other in a circular arrangement, and both ends of the arc-shaped plate body are movably inserted in the adjacent two Inside the end portion of the arc-shaped tube body, a plurality of tooth grooves are evenly provided on the outer surface of the arc-shaped plate body, and the outer surface of the arc-shaped tube body is symmetrically provided near the two ends thereof. A snap-in part with matching tooth grooves, three of the arc-shaped pressure plates are fixedly installed on the inner surface of the arc-shaped pipe body through two sets of guide members, respectively, and the middle of the three arc-shaped pipe bodies are all screwed together An adjusting bolt that interferes with the outer side of the arc-shaped pressure plate.

By adopting the above technical solution, the distance between the two adjacent arc-shaped tubes is easy to adjust, and there is no need to reassemble each time it is used, thereby making the device more convenient to use. In addition, adjusting the two adjacent arcs The distance between the tubes is equivalent to a large adjustment, and then the position of the arc-shaped pressure plate is adjusted by adjusting the bolts, which is equivalent to a fine adjustment, so that the device can be precisely adjusted, so that the device has a better fixation effect on the fracture and is beneficial to the patient's bones Good healing, in addition, the whole device is composed of three arc-shaped tubes, three arc-shaped plates and three arc-shaped pressure plates, so that the structure of the device is relatively stable and the fixing effect is better. The use of the part with the tooth groove can effectively prevent the entire device from loosening, so that the device has a better fixing effect.

Preferably, two ends of the three arc-shaped plate bodies are welded with sliders, and the three arc-shaped tube bodies are aligned inside, and both end portions are fixedly installed with limit sleeves, and the limit sleeves are all movable sets Outside the curved plate body.

By adopting the above technical solution, the setting of the limit sleeve can prevent the slider from falling out from the inside of the arc-shaped tube body, thereby preventing the three arc-shaped tube bodies from being separated from the three arc-shaped plate bodies, thereby making the device always in a whole , No need to re-assemble each time it is used, saving time and effort, convenient and fast, in addition, the setting of the slider makes the arc plate body move inside the arc tube body is relatively labor-saving, can prevent the arc plate body in the arc The inside of the tube is difficult to move, which prevents the device from being unable to adjust.

Preferably, each group of the guides includes an outer sleeve rod, an interpolating rod and a spring, and a guide block, and one end of the outer sleeve rod is fixedly connected to the outer side of the arc-shaped pressing plate. One end is fixedly connected to the inner side of the arc-shaped tube body, the other end of the inner insert rod is movably inserted inside the outer sheath rod, and the end of the inner insert rod inserted into the inner sheath rod The guide block is fixedly connected to one side of the guide block, the guide block is movably disposed inside the outer sleeve rod, and the guide block is in contact with one end of the side spring connected to the interpolating rod. The spring is movably arranged inside the outer sleeve rod, and the other end of the spring is in contact with the end wall of the other end of the outer sleeve rod, and the spring is also movably sleeved outside the interposer rod.

By adopting the above technical solution, under the action of the spring, the outer side of the arc-shaped pressure plate can always be kept in contact with the adjusting bolt, and the rocking of the arc-shaped pressure plate can be avoided, so that the device has a relatively stable structure and a good fixing effect.

Preferably, the inner surface roughness of the outer sleeve rod, the surface roughness of the guide block, and the surface roughness of the interpolating rod are not greater than Ra0.2.

By adopting the above technical solution, not only the wear of the outer sleeve rod and the guide block and the inner rod can be reduced, but also the resistance between the guide block and the inner rod and the outer rod can be reduced, so that the guiding effect of the guide is better.

Preferably, the snap-in member includes a hinged seat fixedly installed on the outer side of the curved tube, a hinged shaft fixedly installed inside the hinged seat, and a bending card hinged on the hinged shaft through a hinge ear Plate, one end of the bending clamping plate is provided with clamping teeth matched with the tooth grooves, the outside of the hinge shaft is also covered with a torsion spring, and one end of the torsion spring and the inside of the bending clamping plate The surfaces are in conflict with each other, and the other end of the torsion spring is in conflict with the outer surface of the arc-shaped tube body.

By adopting the above technical solution, under the action of the torsion spring, the clamping teeth will be stably held inside the tooth groove, which can prevent the relative displacement between the arc-shaped tube body and the arc-shaped plate body. , The teeth will be separated from the tooth slot, at this time, the relative position of the arc tube and the arc plate can be easily adjusted.

Preferably, the central portions of the three arc-shaped pipe bodies are all provided with screw holes matched with the adjusting bolts.

By adopting the above technical solution, the adjustment bolt is easy to install.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present utility model, the distance between two adjacent arc-shaped tubes is easy to adjust, and the setting of the limit sleeve can prevent the slider from coming out from the inside of the arc-shaped tube, thereby preventing the three arc-shaped tubes and three The two arc-shaped plates are separated, so that the device is always in a whole, and there is no need to reassemble each time it is used, which makes the device more convenient to use;

2. In the present invention, adjusting the distance between two adjacent arc-shaped tubes is equivalent to a large adjustment, and then adjusting the position of the arc-shaped pressure plate by adjusting the bolts is equivalent to micro-adjustment, so that the device can realize precise adjustment, thereby making The device has a good effect on the fixation of fractures, which can prevent the patient from being injured twice, and the fractured bones of the affected limbs are not easily punctured by the broken bones, which effectively reduces the pain of the patients and is beneficial to the healing of the patients' bones;

3. In the present utility model, the whole device is composed of three arc-shaped tubes, three arc-shaped plates and three arc-shaped pressure plates, so that the structure of the device is relatively stable and the fixing effect is better. Used in conjunction with the tooth slot, it can effectively prevent the entire device from loosening, so that the device has a better fixing effect and is worthy of promotion and popularization.

BRIEF DESCRIPTION

1 is a schematic structural view of an embodiment of the utility model;

2 is a schematic diagram of the enlarged structure at A in FIG. 1;

FIG. 3 is one of the structural schematic diagrams of different perspectives of an embodiment of the utility model;

FIG. 4 is a second structural diagram of the utility model with different perspectives according to an embodiment of the present invention;

5 is a schematic diagram of an explosion structure of an embodiment of the utility model;

6 is a schematic view of a partial structure of an embodiment of the utility model;

7 is a partial schematic view of FIG. 6;

8 is a schematic diagram of the explosion structure of FIG. 6;

9 is a schematic structural view of a guide member of an embodiment of the present invention.

In the picture: 1. Curved tube body; 2. Curved plate body; 3. Curved pressure plate; 4. Guide piece; 5. Adjusting bolt; 6. Tooth groove; 7. Snap-in piece; 8. Hinge ear; 9 , Clamping teeth; 10, hinged seat; 11, hinged shaft; 12, bending card board; 13, torsion spring; 14, slider; 15, limit sleeve; 16, outer sleeve; 17, inner insert rod; 18, Guide block; 19. Spring.

detailed description

The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

Please refer to Figure 1-9, the utility model provides a technical solution:

An orthopedic fixation device, as shown in FIGS. 1, 3, 4 and 5, includes a flat arc-shaped tube body 1 and an arc-shaped plate body 2 and an arc-shaped pressure plate 3, the arc-shaped tube body 1 and the The arc-shaped plate body 2 and the arc-shaped pressure plate 3 are each provided with three, the arc-shaped tube body 1 and the arc-shaped plate body 2 are arranged adjacent to each other in a circular arrangement, and both ends of the arc-shaped plate body 2 are both A plurality of tooth grooves 6 are evenly provided on the outer surface of the arc-shaped plate body 2 and the outer surface of the arc-shaped tube body 1 Close to the two ends thereof, there are symmetrically the engaging pieces 7 matching with the tooth slots 6, and the three arc-shaped pressing plates 3 are fixedly installed in the arc-shaped pipe body 1 through two sets of guides 4 respectively On the side surface, the middle portions of the three arc-shaped tube bodies 1 are screwed with adjustment bolts 5 that are in contact with the outer side surface of the arc-shaped pressure plate 3.

The distance between two adjacent arc-shaped tube bodies 1 is easy to adjust, and there is no need to re-assemble each time it is used, which makes the device more convenient to use. In addition, the adjustment between two adjacent arc-shaped tube bodies 1 The distance is equivalent to a large adjustment, and then the position of the arc-shaped pressure plate 3 is adjusted by the adjustment bolt 5, which is equivalent to a fine adjustment, so that the device can be precisely adjusted, so that the device has a better fixation effect on the fracture and is beneficial to the patient's bones. In addition, the whole device is composed of three arc-shaped tubes 1 and three arc-shaped plates 2 and three arc-shaped pressure plates 3, which makes the device more stable in structure and better in fixing effect. The insert 7 is used in conjunction with the tooth groove 6, which can effectively prevent the entire device from loosening, so that the device has a better fixing effect.

Specifically, as shown in FIGS. 5-8, sliders 14 are welded to both ends of the three arc-shaped plate bodies 2, and the inner ends of the three arc-shaped pipe bodies 1 are aligned and fixed at both ends. Position sleeve 15, the limit sleeve 15 are all movably sleeved on the outside of the arc-shaped plate body 2.

The setting of the limit sleeve 15 can prevent the slider 14 from coming out from the inside of the arc-shaped tube body 1, thereby preventing the three arc-shaped tube bodies 1 from the three arc-shaped plate bodies 2 from being detached, thereby making the device always be in a whole, There is no need to re-assemble each time it is used, saving time and effort, convenient and fast. In addition, the setting of the slider 14 makes the arc plate 2 move inside the arc tube 1 with less effort, which can prevent the arc plate 2 It is difficult to move inside the arc-shaped tube body 1, which can prevent the device from being unable to adjust.

Specifically, as shown in FIG. 9, each group of the guides 4 includes an outer sleeve 16, an interpolating rod 17 and a spring 19 and a guide block 18, and one end of the outer sleeve 16 is in line with the arc The outer side of the pressure plate 3 is fixedly connected, one end of the inner inserting rod 17 is fixedly connected to the inner side of the arc-shaped tube body 1, and the other end of the inner inserting rod 17 is movably inserted inside the outer jacket rod 16, And an end of the inner insertion rod 17 inserted in the outer casing rod 16 is fixedly connected to a side surface of the guide block 18, the guide block 18 is movably disposed inside the outer casing rod 16, and the The guide block 18 is in contact with one end of the side of the spring 19 connected to the interpolating rod 17, the spring 19 is movably disposed inside the outer sleeve 16, and the other end of the spring 19 is in contact with the The other end wall of the outer sleeve rod 16 is in contact with each other, and the spring 19 is also movably sleeved outside the inner insert rod 17.

Under the action of the spring 19, it can be ensured that the outer side of the arc-shaped pressure plate 3 always interferes with the adjusting bolt 5, which can avoid the rocking of the arc-shaped pressure plate 3, thereby making the device structure more stable and the fixing effect better.

Specifically, the inner surface roughness of the outer sleeve 16, the surface roughness of the guide block 18, and the surface roughness of the inner rod 17 are not greater than Ra0.2.

Not only can the wear of the outer sleeve 16 and the guide block 18 and the inner rod 17 be reduced, but also the resistance between the guide block 18 and the inner rod 17 and the outer rod 16 can be reduced, so that the guiding effect of the guide 4 is better.

Specifically, as shown in FIGS. 2, 6, 7 and 8, the snap-in member 7 includes a hinge seat 10 fixedly installed on the outer surface of the arc-shaped pipe body 1 and a hinge seat 10 fixedly installed inside the hinge seat 10 The articulated shaft 11 and the bent clamping plate 12 articulated on the articulated shaft 11 through an articulated ear 8, one end of the bent clamping plate 12 is provided with clamping teeth 9 matched with the tooth slots 6, the articulated A torsion spring 13 is also sleeved on the outside of the shaft 11, one end of the torsion spring 13 is in contact with the inner side of the bending card 12, and the other end of the torsion spring 13 is outside the arc tube 1 Faces conflict.

Under the action of the torsion spring 13, the clamping teeth 9 will be stably held inside the tooth groove 6, which can prevent the relative displacement between the arc-shaped tube body 1 and the arc-shaped plate body 2, when pressing and bending the clamping plate 12 The locking teeth 9 will be separated from the tooth groove 6, at this time, the relative position of the arc-shaped tube body 1 and the arc-shaped plate body 2 can be adjusted conveniently.

Specifically, the central portions of the three arc-shaped pipe bodies 1 are all provided with screw holes matching the adjustment bolts 5. Make the adjustment bolt 5 easy to install.

Working principle: In this orthopedic fixation device, the distance between the two adjacent arc-shaped tubes 1 is easy to adjust, and there is no need to reassemble each time it is used, which makes the device more convenient to use. In addition, adjusting the adjacent two The distance between the arc-shaped tubes 1 is equivalent to a large adjustment, and then the position of the arc-shaped pressure plate 3 is adjusted by the adjustment bolt 5, which is equivalent to a fine adjustment, so that the device can be precisely adjusted, so that the device has a better effect on fracture fixation Good, it is conducive to better healing of the patient's bones. In addition, the entire device is composed of three arc-shaped tubes 1 and three arc-shaped plates 2 and three arc-shaped pressure plates 3, which makes the device more stable. The fixing effect is better. In addition, the clip 7 is used in conjunction with the tooth groove 6, which can effectively prevent the entire device from loosening, so that the device has a better fixing effect.

How to use: When in use, press and hold the bending chuck 12 to pull the curved plate body 2 from the inside of the curved tube body 1 until it cannot be pulled, and adjust the adjustment bolt 5 outward until the outer sleeve 16 is The inner sides of the arc tube 1 are in contact, and then the entire device is fitted onto the patient's fractured limb, and then the bending plate 12 is pressed to slowly move the arc plate 2 to the arc tube 1 until the arc The pressure plate 3 is attached to the patient's affected limb, and then the arc-shaped pressure plate 3 is loosened, and fine adjustment is performed by rotating the adjustment bolt 5, so that the entire device externally fixes the patient's limb fracture, which can effectively avoid the patient being sent to the hospital Being injured twice during the journey can avoid the puncture of broken bones at the fractured limb of the patient's limb and effectively reduce the patient's pain.

installation method:

The first step is to set two limit sleeves 15 on the outside of each arc-shaped plate body 2 and then weld the slider 14 on both ends of each arc-shaped plate body 2 and insert the slider 14 into the two after welding Two adjacent arc-shaped tubes 1 so that the arc-shaped tube 1 is connected to the arc-shaped plate 2 to form a ring-shaped whole, and then the two limit sleeves 15 of each movable set of each arc-shaped plate 2 are separately set Welded inside the end of each arc tube 1;

The second step is to install the clamping member 7, weld the hinge base 10 to the outer surface of the arc-shaped tube body 1 near the end, place the hinge ear 8 and the torsion spring 13 inside the hinge base 10, and then place The hinge shaft 11 is inserted into the inside of the hinge seat 10 and the hinge ear 8 and the torsion spring 13 in sequence, and the hinge shaft 11 and the hinge seat 10 can adopt an interference fit;

The third step is to assemble the guide 4, the end of the outer sleeve 16 can be used with an end cap, first weld the end of the inner rod 17 to the side of the guide block 18, and then insert the guide block 18 into the outer sleeve 16 Inside, and then insert the spring 19 into the outer sleeve 16 and fit outside the inner rod 17, then weld the end cap to the end of the outer sleeve 16 to assemble the guide 4;

Step 4: Weld one end of the guide 4 on the inner surface of the arc-shaped pipe body 1 and weld the other end of the guide 4 on the outer surface of the arc-shaped pressure plate 3, that is, install the arc-shaped pressure plate 3;

The fifth step is to screw the adjusting bolt 5 into the threaded hole in the middle of the arc-shaped pipe body 1. At this time, the installation is completed.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , Replacement and modification, the scope of the present invention is defined by the appended claims and their equivalents.

Claims

An orthopedic fixation device includes a flat arc-shaped tube body (1) and an arc-shaped plate body (2) and an arc-shaped pressure plate (3), characterized in that: the arc-shaped tube body (1) and the The arc-shaped plate body (2) and the arc-shaped pressure plate (3) are each provided with three, the arc-shaped pipe body (1) and the arc-shaped plate body (2) are arranged adjacent to each other in an annular arrangement, the arc Both ends of the shaped plate body (2) are movably inserted inside the ends of the two adjacent arc-shaped tube bodies (1), and a plurality of teeth are evenly arranged on the outer surface of the arc-shaped plate body (2) A groove (6), the outer surface of the arc-shaped tube body (1) is symmetrically provided with two engaging parts (7) matching the tooth groove (6) near the two ends thereof, and three arcs The pressure plate (3) is fixedly installed on the inner surface of the arc-shaped pipe body (1) through two sets of guides (4), and the three arc-shaped pipe bodies (1) are screwed in The adjusting bolt (5) that the outer side of the arc-shaped pressing plate (3) is in contact with.
The fixation device for orthopedics according to claim 1, characterized in that: three ends of the three arc-shaped plates (2) are welded with sliders (14), and three of the arc-shaped tubes ( 1) The inner ends are aligned, and both end portions thereof are fixedly installed with a limit sleeve (15), and the limit sleeves (15) are all movably sleeved on the outside of the curved plate body (2).
The fixation device for orthopedics according to claim 1, characterized in that each group of the guides (4) includes an outer rod (16), an interpolating rod (17) and a spring (19) and A guide block (18), one end of the outer sleeve rod (16) is fixedly connected to the outer side of the arc-shaped pressing plate (3), and one end of the inner insert rod (17) is connected to the arc-shaped tube body (1) The inner side of the inner side is fixedly connected, the other end of the inner insertion rod (17) is movably inserted inside the outer casing rod (16), and the inner insertion rod (17) is inserted into the outer casing rod (16) ) One end inside is fixedly connected to one side of the guide block (18), the guide block (18) is movably arranged inside the outer sleeve (16), and the guide block (18) and the One end of the spring (19) on the side connected to the inner rod (17) is in conflict, the spring (19) is movably arranged inside the outer sleeve (16), and the other end of the spring (19) In conflict with the other end wall of the outer sleeve rod (16), the spring (19) is also movably sleeved on the outside of the inner insert rod (17).
The fixation device for orthopedics according to claim 3, characterized in that: the inner surface roughness of the outer sleeve rod (16) and the surface roughness of the guide block (18) and the interpolating rod (17) ) Surface roughness is not greater than Ra0.2.
The fixation device for orthopedics according to claim 1, characterized in that the clamping member (7) includes a hinge seat (10) and a fixation fixedly installed on the outer surface of the arc-shaped tube (1) A hinge shaft (11) installed inside the hinge seat (10) and a bent clamping board (12) hinged on the hinge shaft (11) through a hinge ear (8), the bent clamping board (12) ) Is provided with a clamping tooth (9) matching with the tooth groove (6), the outer side of the hinge shaft (11) is also sleeved with a torsion spring (13), one end of the torsion spring (13) is The inner side of the bent clamping plate (12) is in contact with each other, and the other end of the torsion spring (13) is in contact with the outer side of the arc-shaped tube (1).
The fixation device for orthopedics according to claim 1, characterized in that: three central portions of the arc-shaped tubes (1) are provided with screw holes matching the adjustment bolts (5).