CN219166499U - Spinal column spreader for treating spinal column deformity operation - Google Patents

Abstract

The utility model discloses a spinal distractor for surgical treatment of spinal deformity, relates to the technical field of medical equipment, and comprises a distraction distance adjustment assembly, the distraction distance adjustment assembly includes two moving seats, the front ends of the two moving seats are A connecting plate is fixed, and the side of the two connecting plates close to each other is connected with a spreader plate assembly, and the spreader plate assembly includes a connecting frame, and two receiving grooves are opened on the connecting frame, and the receiving groove A second screw rod is movable inside, and a moving block is sleeved on the second screw rod through a nut seat. The front end of the moving block is connected with a support plate, and a support plate is fixed at the lower end of the support plate. The utility model is provided with a stretching distance adjustment assembly and a stretching plate assembly, so that the sight of the doctor will not be hindered when the surgical wound is stretched, and by turning the second rotating head on the stretching plate assembly, the opening and closing of the stretching plate assembly can be adjusted. The distance between the two supporting pieces can meet the demand of larger stretching area.

Description

Spinal distractor for surgical treatment of spinal deformity

technical field

The utility model relates to the technical field of medical instruments, in particular to a spinal distractor for surgical treatment of spinal deformity.

Background technique

During the treatment of the spine, it is necessary to cut an incision at the corresponding position of the spine, and then use a distraction device to spread the wound from both sides, so that the medical staff can directly contact the spine for treatment and observation, so the more common in spinal treatment is Spinal distractor.

At present, the incision spreader for spinal surgery is designed to be located above the incision, which hinders the doctor's sight and easily affects the doctor's operation. At the same time, the contact area between the spread piece and the spread area is fixed, and it is relatively small in the spread area. When it is large, multiple spinal distractors are required, which is troublesome to operate.

Therefore, it is necessary to invent a spinal distractor for the surgical treatment of spinal deformities to solve the above problems.

Utility model content

The purpose of this utility model is to provide a spinal retractor for the treatment of spinal deformity surgery, to solve the problem that the spinal surgery incision retractor proposed in the above background technology is designed to be located above the incision, which hinders the doctor's line of sight and easily affects the doctor's vision. Operation, at the same time, the contact area between the expansion piece and the expansion area is fixed. When the expansion area is large, it will be necessary to use multiple spinal expansion devices, which is troublesome to operate.

In order to achieve the above purpose, the utility model provides the following technical solution: a spinal distractor for surgical treatment of spinal deformity, including a distraction distance adjustment assembly, and both sides of the bottom of the distraction distance adjustment assembly are connected with support assemblies, and the brace The opening distance adjustment assembly includes two moving seats, the front ends of the two moving seats are fixed with connecting plates, and the sides of the two connecting plates close to each other are connected with a stretching plate assembly, and the spreading plate assembly includes A connecting frame, the connecting frame is provided with two accommodating grooves, a second screw rod is movably installed in the accommodating groove, and a moving block is sleeved on the second screw rod through a nut seat, and the front end of the moving block A support plate is connected, the lower end of the support plate is fixed with a support plate, the front end of the moving block is fixed with a second screw rod, and a second through hole is opened on the position corresponding to the second screw rod on the support plate. The screw goes through the second through hole and is sleeved with a second nut.

Preferably, the expansion distance adjustment assembly includes a fixing frame, grooves are opened on the left and right sides of the front side of the fixing frame, and a first screw rod is movably installed in the inside of the groove, and the two first The ends of the screw rods that are close to each other are connected, the moving seat is sleeved on the first screw rod through the nut seat, and the first rotating head is movably installed on the right side of the fixed frame, and the first rotating head is located on the right side. The right end of the first screw mandrel is connected, and by rotating the first rotating head, the two first screw mandrels are driven to rotate, thereby driving the two moving seats away from each other, so that the support pieces on the two spreader plate assemblies are far away from each other, Thereby propping open the wound during spinal deformity surgery.

Preferably, the inside of the groove is fixed with a limit rod, and the limit rod is located behind the first screw rod, and the rear part of the moving seat is slidably nested on the limit rod, and the moving seat is moved by the limit rod. Limit the position to make the mobile seat move stably.

Preferably, two ends of the second screw rods that are close to each other are connected, and a second rotating head is movably installed on the front end of the connecting frame, and the second rotating head is connected to the front end of the second screw rod at the front. The connection is fixed, and by turning the second rotating head, the second screw mandrel can be driven to rotate, thereby adjusting the distance between the two supporting pieces on the spreader plate assembly.

Preferably, a chute is provided on the inner wall of the accommodating groove, a slider is fixed on a side of the moving block close to the chute, and the slider is slidably nested in the chute to limit the position of the moving block, so that The moving block moves stably in the containing groove.

Preferably, first screw rods are fixed at the front and rear ends of the side of the connecting frame close to the connecting plate, and a first through hole is opened on the connecting plate corresponding to the first screw rod, and the first screw rod passes through the first screw rod. The first nut is sleeved in the through hole, so that the connection between the connecting frame and the connecting plate is simple, so that the connection between the expansion plate assembly and the connecting plate is simple and easy to disassemble.

Preferably, the support assembly includes a support sleeve and a support rod, the lower end of the support sleeve is fixed with a silicone suction cup, the support rod is slidably nested in the support sleeve, and the upper end of the support rod extends out of the support sleeve The outer part is connected with the bottom of the fixed frame, and the outer upper part of the support sleeve is threaded with a knob, and the tail end of the knob is in conflict with the surface of the support rod, and is adsorbed on the skin near the patient’s wound by a silica gel suction cup, thereby The distraction distance adjustment component is used for support, so that the spinal distractor can be placed stably during work.

Preferably, the bottom edge of the silica gel suction cup is fixed with a lifting edge, and the adsorption of the silica gel suction cup can be released by lifting the lifting edge.

In the above-mentioned technical scheme, the technical effects and advantages provided by the utility model:

1. By setting the expansion distance adjustment assembly and the expansion plate assembly, the sight of the doctor will not be hindered when the surgical wound is expanded, and the two rotation heads on the expansion plate assembly can be adjusted by rotating the second rotating head on the expansion plate assembly. The distance between the two supporting pieces can be adapted to meet the needs of a larger distraction area, reduce the number of spinal distractors used, and avoid the need to use multiple spinal distractors to increase the troublesomeness of the operation;

2. By setting the support component, the silicone suction cup at the bottom of the support component is adsorbed on the skin near the patient's wound, thereby supporting the spinal distractor, so that the spinal distractor can be placed stably during operation;

3. The support plate is connected to the moving block through the second screw rod and the second nut, which is simple to connect and facilitates the disassembly of the support plate, thereby facilitating the replacement of the support plate.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. For some embodiments described, those skilled in the art can also obtain other drawings according to these drawings.

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

Fig. 2 is a schematic diagram of a stretching distance adjustment assembly of the present invention;

Fig. 3 is a schematic diagram of the expansion plate assembly of the present invention;

Fig. 4 is a schematic diagram of a moving block of the present utility model;

Fig. 5 is the connection diagram of the support plate and the support piece of the utility model;

Fig. 6 is a schematic diagram of a support assembly of the present invention.

Explanation of reference signs:

1. Stretching distance adjustment assembly; 11. Moving seat; 12. Connecting plate; 121. First through hole; 13. Fixing frame; 14. Groove; 15. First screw rod; 16. First rotating head; 17 , limit rod;

2. Support component; 21. Support sleeve; 22. Support rod; 23. Silicone suction cup; 24. Knob; 25. Lifting edge;

3. Expansion plate assembly; 31. Connecting frame; 311. Accommodating groove; 312. Slide groove; 313. First screw rod; 314. First nut; 32. Second screw rod; 33. Moving block; 331. Second Screw rod; 332, slide block; 333, second nut; 34, support plate; 341, second through hole; 35, support sheet; 36, second rotating head.

Detailed ways

In order to make those skilled in the art better understand the technical solution of the utility model, the utility model will be further introduced in detail below in conjunction with the accompanying drawings.

The utility model provides a spinal distractor for the surgical treatment of spinal deformities as shown in Figures 1 to 5, comprising a distraction distance adjustment assembly 1, and both sides of the bottom of the distraction distance adjustment assembly 1 are connected with a support assembly 2, and the brace The opening distance adjustment assembly 1 includes two moving seats 11, the front ends of the two moving seats 11 are fixed with a connecting plate 12, and the side of the two connecting plates 12 close to each other is connected with a stretching plate assembly 3, and the spreading plate assembly 3 Including the connecting frame 31, the connecting frame 31 is provided with two accommodating grooves 311, the second screw mandrel 32 is movably installed in the accommodating groove 311, the second screw mandrel 32 is sleeved with a moving block 33 through a nut seat, and the moving block 33 The front end is connected with a support plate 34 , and the lower end of the support plate 34 is fixed with a support piece 35 .

The stretching distance adjustment assembly 1 includes a fixed frame 13, the left and right sides of the front side of the fixed frame 13 are provided with grooves 14, and the inside of the groove 14 is movably equipped with a first screw rod 15, and the two first screw rods 15 are close to each other. connected to one end of the two, the moving seat 11 is sleeved on the first screw rod 15 through the nut seat, and the first rotating head 16 is movably installed on the right side of the fixed frame 13, and the first rotating head 16 is connected with the first screw rod located on the right. The right end of 15 is connected, and by rotating the first rotary head 16, the two first screw mandrels 15 are driven to rotate, thereby driving the two moving seats 11 to move away from each other, so that the support pieces 35 on the two spreader plate assemblies 3 are moved away from each other, thereby Distracting wounds during spinal deformity surgery.

The inside of the groove 14 is fixed with a limit rod 17, the limit rod 17 is positioned at the rear of the first screw mandrel 15, and the rear portion of the moving seat 11 is slidably nested on the limit rod 17, and the moving seat 11 is moved by the limit rod 17. Limiting, so that the mobile seat 11 moves stably.

The two second screw mandrels 32 are connected at one end close to each other. The front end of the connecting frame 31 is movably equipped with a second rotating head 36. The second rotating head 36 can drive the second threaded mandrel 32 to rotate, thereby adjusting the distance between the two supporting pieces 35 on the spreader plate assembly 3 .

The inner wall of the receiving groove 311 is provided with a chute 312, and the side of the moving block 33 close to the chute 312 is fixed with a slider 332, and the sliding block 332 is slidably nested in the chute 312, so that the moving block 33 can be limited so that it can move The block 33 moves stably in the receiving groove 311 .

The front and rear ends of the connecting frame 31 near the side of the connecting plate 12 are fixed with first screw rods 313, and the position corresponding to the first screw rod 313 on the connecting plate 12 is provided with a first through hole 121, and the first screw rod 313 runs through the first through hole 121 is sleeved with a first nut 314, so that the connection between the connecting frame 31 and the connecting plate 12 is simple, so that the connection between the expansion plate assembly 3 and the connecting plate 12 is simple and easy to disassemble.

When in use, align the support pieces 35 at the bottom of the two spreader plate assemblies 3 with the surgical wound, and extend into the surgical wound, then turn the first rotating head 16 to drive the two first screw rods 15 to rotate, thereby driving the two The moving bases 11 are far away from each other, and the two moving bases 11 are driven away from each other to drive the two connecting plates 12 away from each other. The supporting pieces 35 are far away from each other, so as to spread the surgical wound, and the distance adjustment assembly 1 is not directly above the surgical wound, which will not hinder the doctor's sight, and will not easily affect the doctor's operation. When the wound is stretched, turning the second rotating head 36 on the stretching plate assembly 3 can drive the second screw rod 32 to rotate, so that the two moving blocks 33 on the stretching plate assembly 3 are far away from each other, so that the stretching plate assembly 3. The two supporting pieces 35 at the bottom are far away from each other, so as to be able to meet the requirement of a larger distraction area, reduce the number of spinal distractors used, and avoid the need to use multiple spinal distractors to increase the troublesomeness of the operation.

As shown in Fig. 3, Fig. 4 and Fig. 5, the front end of the moving block 33 is fixed with a second screw rod 331, and the position corresponding to the second screw rod 331 on the support plate 34 is provided with a second through hole 341, and the second screw rod 331 runs through the second screw rod 331. The through hole 341 is sleeved with the second nut 333 .

The support plate 34 is connected with the moving block 33 through the second screw rod 331 and the second nut 333, the connection is simple, and the disassembly of the support plate 34 is convenient, thereby facilitating the replacement of the support plate 35

As shown in Figure 1 and Figure 6, the support assembly 2 includes a support sleeve 21 and a support rod 22, the lower end of the support sleeve 21 is fixed with a silicone suction cup 23, the support rod 22 is slidingly nested in the support sleeve 21, the support rod 22 The upper end of the support sleeve 21 extends out of the support sleeve 21 and connects with the bottom of the fixed frame 13. The outer upper part of the support sleeve 21 is threaded with a knob 24, and the tail end of the knob 24 conflicts with the surface of the support rod 22, and is adsorbed by the silica gel suction cup 23. On the skin near the patient's wound, the distraction distance adjustment assembly 1 is supported, so that the spinal distractor can be placed stably during operation.

The bottom edge of the silica gel suction cup 23 is fixed with a lifting edge 25 , by lifting the lifting edge 25 , the adsorption of the silica gel suction cup 23 can be released.

When the spinal distractor is placed, the support sheet 35 is aligned with the surgical wound, and then the silicone suction cup 23 at the bottom of the support assembly 2 is adsorbed on the skin near the patient's wound, thereby supporting the distraction distance adjustment assembly 1, so that the spine When the spreader is working, place it stably, loosen the knob 24, release the fixation of the support rod 22, and adjust the overall height of the support assembly 2, so that the support piece 35 can extend into the surgical wound, and then turn the knob 24 tightly to fix it. Live the support rod 22.

Some exemplary embodiments of the present utility model have been described above only by way of illustration. Undoubtedly, for those skilled in the art, without departing from the spirit and scope of the present utility model, various Modifications are made to the described embodiments. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims (8)

1. Spinal distractor for surgical treatment of spinal deformities, comprising a distraction distance adjustment assembly (1), characterized in that: both sides of the bottom of the distraction distance adjustment assembly (1) are connected with support assemblies (2), so The stretching distance adjustment assembly (1) includes two moving seats (11), the front ends of the two moving seats (11) are fixed with connecting plates (12), and the two connecting plates (12) are close to each other. One side is connected with a spreader plate assembly (3), and the spreader plate assembly (3) includes a connecting frame (31), and two receiving grooves (311) are opened on the connecting frame (31). A second screw mandrel (32) is movably installed in the slot (311), and a moving block (33) is sleeved on the second screw mandrel (32) through a nut seat, and the front end of the moving block (33) is connected with a support plate (34), the lower end of the support plate (34) is fixed with a support piece (35), the front end of the moving block (33) is fixed with a second screw (331), and the support plate (34) corresponds to the first A second through hole (341) is opened at the position of the second screw rod (331), and the second screw rod (331) is sleeved with a second nut (333) through the second through hole (341). 2. The spinal distractor for surgical treatment of spinal deformity according to claim 1, characterized in that: the distraction distance adjustment assembly (1) comprises a fixed frame (13), and the front side of the fixed frame (13) The left and right parts are all provided with grooves (14), and the first screw mandrel (15) is movably installed inside the groove (14), and two ends of the first screw mandrels (15) that are close to each other are connected. The moving seat (11) is sleeved on the first screw mandrel (15) through a nut seat, and the right side of the fixed mount (13) is movably equipped with a first rotating head (16), and the first rotating head ( 16) Connect with the right end of the first screw mandrel (15) located on the right. 3. The spinal distractor for surgical treatment of spinal deformity according to claim 2, characterized in that: a limit rod (17) is fixed inside the groove (14), and the limit rod (17) is located at the first Behind the threaded rod (15), the rear portion of the moving seat (11) slides and nests on the limit rod (17). 4. The spinal distractor for surgical treatment of spinal deformity according to claim 1, characterized in that: the ends of the two second screw rods (32) that are close to each other are connected, and the front ends of the connecting frame (31) A second rotating head (36) is movably installed, and the second rotating head (36) is fixedly connected with the front end of the second screw mandrel (32) located at the front. 5. The spinal distractor for surgical treatment of spinal deformity according to claim 1, characterized in that: the inner wall of the receiving groove (311) is provided with a chute (312), and the moving block (33) is close to the chute One side of the (312) is fixed with a slide block (332), and the slide block (332) is slidably nested in the slide groove (312). 6. The spinal distractor for surgical treatment of spinal deformity according to claim 1, characterized in that: the first screw rod ( 313), the connecting plate (12) is provided with a first through hole (121) at a position corresponding to the first screw rod (313), and the first screw rod (313) penetrates through the first through hole (121) and is sleeved with a first through hole (121). a nut (314). 7. The spinal distractor for surgical treatment of spinal deformity according to claim 2, characterized in that: the support assembly (2) comprises a support sleeve (21) and a support rod (22), and the support sleeve ( 21) is fixed with a silica gel sucker (23), the support rod (22) is slidingly nested in the support sleeve (21), and the upper end of the support rod (22) stretches out of the support sleeve (21) and The bottom of the fixed frame (13) is connected, and the outer upper part of the support sleeve (21) is threaded with a knob (24), and the tail end of the knob (24) conflicts with the surface of the support rod (22). 8. The spinal distractor for surgical treatment of spinal deformity according to claim 7, characterized in that: the bottom edge of the silicone suction cup (23) is fixed with a flap (25).

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