Spinal fracture spreader

Abstract

According to the technical scheme, the spinal fracture spreader is characterized in that rotating wheels and guide blocks are arranged, the pair of rotating wheels rotates and can be connected with a gear ring in a meshed mode, the guide blocks which are symmetrically connected can drive a spreader body to adjust the position, spreading work can be conducted at different positions or distances, and the spine fracture spreader is convenient to use. Therefore, the distraction device body can distinguish the instability and the inaccuracy of manual distance adjustment, and the problem of unstable adjustment is solved. By arranging the connecting ring, in the sliding process of the two gear rings which are connected in a staggered mode, limiting can be conducted through the connecting ring, and the gear rings are adjusted to drive the spreader body to slide more stably; an arc-shaped structure is arranged, so that the distraction device body can be better supported, and distraction is convenient; and the micro telescopic rod is arranged, so that the dilator body can be driven to perform angle adjustment, the dilator body can perform multi-angle supporting and distraction according to angle requirements, the dilator body is more practical, and the distraction effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a spinal fracture distractor. Background Art

[0002] During the treatment of spinal compression fractures, medical distraction devices are required to distract and reduce the fractures and insert inlays for fixation, so as to prevent the spine from being sunken again after being stressed before healing. Therefore, the use of spinal fracture distractors is very important for treatment.

[0003] Chinese patent authorization application number: CN202020112080.0 provides a fracture reduction and distraction device, which integrates fixation, reduction and positioning in one. Compared with pulling the broken bone with two pliers, the operation of the utility model is simpler, the adjustment accuracy is higher, and the installation is convenient. The arc-shaped connecting plate and the anti-slip pad on the inner side of the connecting plate can improve the connection stability between the connecting plate and the broken bone. The positioning component has a positioning effect, which can position the body after reduction, facilitating subsequent surgical operations.

[0004] Existing fracture spreaders have certain drawbacks when in use. First, the fracture spreader is manually adjusted for expansion, which is inconvenient to operate. In addition, the degree of expansion cannot be guaranteed due to poor control of the strength during manual operation, which affects the effectiveness of the fracture spreader. Therefore, we propose a spinal fracture spreader. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a spinal fracture stretcher. By setting a rotating wheel and a guide block, a pair of rotating wheels can be rotated and meshed with a gear ring, so that the symmetrically connected guide blocks can drive the stretcher body to adjust the position, and can perform stretching work at different positions or distances, so that the stretcher body can distinguish the instability and inaccuracy of manual adjustment of the distance, which is used to solve the problem of unstable adjustment; by setting a connecting ring, the connecting ring can be used to limit the sliding of the two staggered gear rings, so that the gear ring adjustment can drive the stretcher body to slide more stably; an arc-shaped structure is set to allow the stretcher body to better support and facilitate stretching; a micro-telescopic rod is set to drive the stretcher body to adjust the angle, so that the stretcher body can be supported and stretched at multiple angles according to the angle requirements, making the stretcher body more practical and improving the stretching effect of the device.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A column fracture distractor comprises a main body mechanism, an outer end of the main body mechanism is fixedly connected to an adjustment mechanism, and an outer end of the adjustment mechanism is installed with a connection mechanism;

[0008] The adjustment mechanism includes a support frame, which has an arc-shaped structure. Both ends of the support frame are fixedly connected to connecting frames. A driving member is installed at the bottom end of the connecting frame. A transmission end of the driving member is fixedly connected to a rotating wheel. The outer end of the rotating wheel is meshed with a gear ring, and the inner end of the gear ring is installed with a guide block.

[0009] By installing the rotating wheel and the guide block, the device can be used for distraction at different positions or distances, so that the distractor body can distinguish the instability and imprecision of manual distance adjustment, thereby improving the convenience of using the spinal fracture distractor.

[0010] Furthermore, a bracket is movably connected to the lower part of the guide block, and a guide ring is fixedly connected to the outer end of the bracket.

[0011] By installing the guide ring, the guide ring can guide the moving guide block, so that the guide block can slide to drive the expander body to adjust more stably without offset.

[0012] Furthermore, the guide block is slidably connected to the outer end of the guide ring, a connecting ring is movably connected to the upper part of the guide block, the connecting ring is movably connected to the outer end of the gear ring, a sliding groove is provided at the outer end of the guide block, and a mounting frame is installed at the front end of a pair of guide blocks.

[0013] By installing the connecting ring, the gear ring can be adjusted to drive the slide of the expander body to be more stable.

[0014] Furthermore, the main body mechanism comprises a connecting rod, the inner end of the connecting rod is threadedly connected to an extension rod, and the front and rear ends of the main body mechanism are fixedly connected to reinforcement rings.

[0015] By installing the reinforcement ring, the reinforcement ring can form a connection structure at the outer end of the support frame, making the support frame more stable to use and improving the stability of the connection between the device structures.

[0016] Furthermore, the outer end of the mounting frame is fixedly connected to a spreading rod, and the outer end of the spreading rod is hingedly connected to an adjusting frame.

[0017] By installing the spreading rods, the stability between the device structures can be further improved.

[0018] Furthermore, a spreader body is installed at the outer end of the adjustment frame, the spreader body is an arc-shaped structure, and the spreader body is symmetrically distributed.

[0019] By installing the spreader body, the spreader body can be better supported and spread more conveniently.

[0020] Furthermore, a movable frame is installed at the rear end of the spreader body, and the inner end of the movable frame is hingedly connected with a miniature telescopic rod.

[0021] By installing the micro telescopic rod, the main body of the spreader can be made more practical, and the spreading effect of the device is improved.

[0022] Furthermore, the other end of the miniature telescopic rod away from the movable frame is hingedly connected to a receiving frame, and the receiving frame is located at the rear end of the propping rod.

[0023] By installing the receiving frame, the receiving frame can increase the stability of the connection between the micro telescopic rod and the spreading rod, thereby improving the stability of the spreader body adjustment.

[0024] In summary, the utility model has the following beneficial effects:

[0025] 1. By setting a rotating wheel and a guide block, when the device needs to perform a distraction work, the rotating wheel is operated to rotate, and a pair of rotating wheels rotate to engage with the gear ring, thereby driving the gear ring to move and drive the guide block. At this time, the symmetrically connected guide blocks drive the distractor body to adjust the position, and the distraction work can be performed at different positions or distances, so that the distractor body can distinguish the instability and inaccuracy of manual distance adjustment, thereby improving the convenience of using the spinal fracture distractor;

[0026] 2. By setting the connecting ring, the connecting ring can be used to limit the position of the two staggered gear rings during sliding, so that the gear ring adjustment can drive the slide of the expander body to be more stable;

[0027] 3. By setting up the expander body, the expander body with an arc-shaped structure can form a supporting connection structure outside the broken bone, so that the expander body can better support and facilitate expansion;

[0028] 4. By setting a micro telescopic rod, when the device is stretched and supported, starting the micro telescopic rod can drive the stretcher body to adjust the angle, so that the stretcher body can be supported and stretched at multiple angles according to the angle requirements, making the stretcher body more practical and improving the stretching effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0030] Figure 2 In this embodiment Figure 1 A schematic diagram of the structure at the center showing a three-dimensional magnification;

[0031] Figure 3 Schematic diagram of the structure of the cross section of the support frame in this embodiment;

[0032] Figure 4 In this embodiment Figure 3 The structural diagram of the plane enlarged at B in the middle;

[0033] Figure 5 Schematic diagram of the structure of the connecting mechanism in the present embodiment when viewed from above.

[0034] In the figure, 1. main body mechanism; 101. connecting rod; 102. extension rod; 103. reinforcement ring; 2. adjustment mechanism; 201. opening frame; 202. connecting frame; 203. driving member; 204. rotating wheel; 205. gear ring; 206. guide block; 207. bracket; 208. guide ring; 209. connecting ring; 210. slide groove; 211. mounting frame; 3. connecting mechanism; 301. opening rod; 302. adjustment frame; 303. opener body; 304. movable frame; 305. micro telescopic rod; 306. receiving frame. DETAILED DESCRIPTION

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0036] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0037] Reference Figure 1-5 As shown, a column fracture distractor in a preferred embodiment of the utility model comprises a main body mechanism 1, an outer end of the main body mechanism 1 is fixedly connected to an adjustment mechanism 2, and an outer end of the adjustment mechanism 2 is installed with a connection mechanism 3;

[0038] The adjustment mechanism 2 includes a support frame 201, which has an arc-shaped structure. Both ends of the support frame 201 are fixedly connected to a connecting frame 202. A driving member 203 is installed at the bottom end of the connecting frame 202. The transmission end of the driving member 203 is fixedly connected to a rotating wheel 204. The outer end of the rotating wheel 204 is meshed with a gear ring 205. The inner end of the gear ring 205 is installed with a guide block 206.

[0039] Reference Figure 2-3 As shown, a bracket 207 is movably connected to the lower part of the guide block 206 , and a guide ring 208 is fixedly connected to the outer end of the bracket 207 .

[0040] Reference Figure 3 As shown, the guide block 206 is slidably connected to the outer end of the guide ring 208, a connecting ring 209 is movably connected to the upper part of the guide block 206, the connecting ring 209 is movably connected to the outer end of the gear ring 205, a slide groove 210 is provided at the outer end of the guide block 206, and a mounting frame 211 is installed at the front end of a pair of guide blocks 206.

[0041] By installing the rotating wheel 204 and the guide block 206, when the device needs to perform the expansion work, the operating start wheel 204 is rotated, and a pair of rotating wheels 204 are rotated to mesh with the ring gear 205, thereby driving the ring gear 205 to move the position and drive the guide block 206. The guide ring 208 can guide the moving guide block 206, so that the guide block 206 slides to drive the expander body 303 to adjust more stably. At this time, the symmetrically connected guide blocks 206 drive the expander body 303 to adjust the position, and can perform expansion work at different positions or distances, so that the expander body 303 can distinguish the instability and imprecision of manually adjusting the distance, thereby improving the convenience of using the spinal fracture expander.

[0042] Reference Figure 1 As shown, the main body mechanism 1 includes a connecting rod 101, the inner end of the connecting rod 101 is threadedly connected to an extension rod 102, and the front and rear ends of the main body mechanism 1 are fixedly connected to reinforcement rings 103.

[0043] By installing the reinforcement ring 103 , the reinforcement ring 103 can form a connection structure at the outer end of the open frame 201 , making the open frame 201 more stable to use and improving the stability of the connection between the device structures.

[0044] Reference Figure 2 and Figure 5 As shown, the outer end of the mounting frame 211 is fixedly connected to a propping rod 301 , and the outer end of the propping rod 301 is hingedly connected to an adjusting frame 302 .

[0045] Reference Figure 1 As shown, a spreader body 303 is installed at the outer end of the adjustment frame 302. The spreader body 303 is an arc-shaped structure and is symmetrically distributed.

[0046] Reference Figure 2 and Figure 5 As shown, a movable frame 304 is installed at the rear end of the spreader body 303, and a miniature telescopic rod 305 is hingedly connected to the inner end of the movable frame 304.

[0047] Reference Figure 5 As shown, the other end of the miniature telescopic rod 305 away from the movable frame 304 is hingedly connected to a receiving frame 306 , and the receiving frame 306 is located at the rear end of the propping rod 301 .

[0048] By installing the spreader body 303, the spreader body 303 with an arc-shaped structure can form a supporting connection structure on the outside of the broken bone, so that the spreader body 303 can better support and facilitate the spread. When the device is spreading and supporting, starting the micro telescopic rod 305 can drive the spreader body 303 to adjust the angle, so that the spreader body 303 can support and spread at multiple angles according to the angle requirements, making the spreader body 303 more practical and improving the spreading effect of the device.

[0049] Specific implementation process: multiple spreader bodies 303 are adjusted in position to facilitate support treatment of fractures, and the operation starts the rotation of the rotating wheel 204. A pair of rotating wheels 204 rotate and can be meshed with the gear ring 205, thereby driving the gear ring 205 to move and drive the guide block 206. During the sliding process of the two staggered gear rings 205, the connecting ring 209 can be used to limit the position, so that the gear ring 205 can adjust and drive the spreader body 303 to slide more stably. At this time, the symmetrically connected guide blocks 206 drive the spreader body 303 to adjust the position, and can perform spreading work at different positions or distances, so that the spreader body 303 can distinguish the instability and inaccuracy of manually adjusting the distance, thereby improving the convenience of using the spinal fracture spreader.

[0050] At this time, the expander body 303 with an arc-shaped structure can form a supporting connection structure outside the broken bone, so that the expander body 303 can better support and facilitate expansion. When the device is expanding and supporting, starting the micro-telescopic rod 305 can drive the expander body 303 to adjust the angle, so that the expander body 303 can support and expand at multiple angles according to the angle requirements, making the expander body 303 more practical and improving the expansion effect of the device.

[0051] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A spinal fracture distractor, characterized in that: It comprises a main body mechanism (1), the outer end of the main body mechanism (1) is fixedly connected to an adjustment mechanism (2), and the outer end of the adjustment mechanism (2) is installed with a connection mechanism (3); The adjustment mechanism (2) comprises an open frame (201), the open frame (201) is in an arc-shaped structure, both ends of the open frame (201) are fixedly connected to a connecting frame (202), a driving member (203) is installed at the bottom end of the connecting frame (202), a transmission end of the driving member (203) is fixedly connected to a rotating wheel (204), an outer end of the rotating wheel (204) is meshingly connected to a gear ring (205), and a guide block (206) is installed at the inner end of the gear ring (205).

2. The spinal fracture distractor according to claim 1, characterized in that: A bracket (207) is movably connected to the lower portion of the guide block (206), and a guide ring (208) is fixedly connected to the outer end of the bracket (207).

3. The spinal fracture distractor according to claim 2, characterized in that: The guide block (206) is slidably connected to the outer end of the guide ring (208); a connecting ring (209) is movably connected to the upper portion of the guide block (206); the connecting ring (209) is movably connected to the outer end of the gear ring (205); a sliding groove (210) is provided at the outer end of the guide block (206); and a mounting frame (211) is installed at the front end of the pair of guide blocks (206).

4. The spinal fracture distractor according to claim 1, characterized in that: The main body mechanism (1) comprises a connecting rod (101), the inner end of the connecting rod (101) being threadedly connected to an extension rod (102), and the front and rear ends of the main body mechanism (1) are both fixedly connected to reinforcement rings (103).

5. The spinal fracture distractor according to claim 3, characterized in that: The outer end of the mounting frame (211) is fixedly connected to a propping rod (301), and the outer end of the propping rod (301) is hingedly connected to an adjusting frame (302).

6. The spinal fracture distractor according to claim 5, characterized in that: A spreader body (303) is mounted on the outer end of the adjustment frame (302); the spreader body (303) is an arc-shaped structure, and the spreader bodies (303) are symmetrically distributed.

7. The spinal fracture distractor according to claim 6, characterized in that: A movable frame (304) is installed at the rear end of the spreader body (303), and a micro telescopic rod (305) is hingedly connected to the inner end of the movable frame (304).

8. The spinal fracture distractor according to claim 7, characterized in that: The other end of the miniature telescopic rod (305) away from the movable frame (304) is hingedly connected to a receiving frame (306), and the receiving frame (306) is located at the rear end of the propping rod (301).

Images