Precise rod bending device for spine surgery

Abstract

The utility model discloses an accurate bar bender for spine surgery, which belongs to the technical field of bar benders and comprises a fixing plate and a rotating frame rotatably arranged at the bottom end of the fixing plate, a mounting plate and a connecting part are respectively fixed at two ends of the fixing plate and the rotating frame, a fixing rod is mounted at the center of the fixing plate, and the connecting part is connected with the fixing plate. Wherein a dial is adhered to the fixing plate, a scale pointer corresponding to the dial is fixed to the top end of the rotating frame, connecting rods are fixed to the top ends of the two mounting plates, and bar bending rods are detachably fixed to the mounting plates through the connecting rods. The bending radian of the spine nail rod is accurately controlled according to the scale pointer and the numerical value of the top end of the dial, the bending accuracy of the spine nail rod is improved, the rod bending rod is convenient to disassemble and replace, and the maintenance convenience of the rod bending rod is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the rod bender, specifically relates to the precise rod bender of spinal surgery. BACKGROUND

[0002] In clinic, spinal disease is widespread, and spinal nail and rod fusion technology has been maturely carried out to treat various spinal diseases. On the sagittal plane, the curvature of the bent rod will be used as a reference for the target curvature of the spinal shape. Currently, senior doctors in clinic bend the rod by visual inspection, but the curvature of each segment of the bent rod still lacks accuracy. And the difference in rod curvature is greater for junior doctors. Due to these problems, the final fixed segment does not obtain the best physiological bending or the spinal orthopedic case fails to obtain the target correction, thereby affecting the clinical efficacy and even requiring secondary repair during follow-up. SUMMARY

[0003] In view of the defects of the prior art, the purpose of the utility model is to provide a precise rod bender for spinal surgery, which aims to solve the technical problem that the curvature of the bent rod is determined by visual inspection under the prior art, and the curvature of each segment of the bent rod still lacks accuracy.

[0004] To solve the above technical problems, the utility model provides such a precise rod bender for spinal surgery, which comprises a fixed plate and a rotating frame rotatably arranged at the bottom end of the fixed plate, the two ends of the fixed plate and the rotating frame are respectively fixed with mounting plates and connecting parts, and a fixed rod is installed at the center position of the fixed plate, wherein a scale disc is bonded to the fixed plate, a scale pointer corresponding to the scale disc is fixed to the top end of the rotating frame, connecting rods are fixed to the top ends of the two mounting plates, and the mounting plates are detachably fixed with rod bending rods through the connecting rods.

[0005] When the technical scheme is used, the scale disc is bonded to the top end of the fixed plate, and the scale pointer corresponding to the scale disc is fixed to the top end of the rotating frame. During the rotation of the handle, the rotating frame and the mounting plate, the scale pointer rotates synchronously at the top end of the scale disc. The bending curvature of the spinal nail and rod is accurately controlled according to the numerical value of the scale pointer and the top end of the scale disc, and the accuracy of the bending of the spinal nail and rod is improved. The connecting rods are fixed to the top ends of the two mounting plates, the rod bending rods are fitted on the connecting rods through the connecting holes, and the connecting rods push the clamping blocks out of the installation slot after passing through the rod bending rods, so that the rod bending rods are fixed at the top end of the mounting plate. After the clamping blocks are extruded and shrunk into the installation slot, the rod bending rods can be easily disassembled and replaced, and the convenience of maintaining the rod bending rods is improved.

[0006] Preferably, the rotating frame is in V-shaped structure, and the bottom end of the rotating frame is fixed with a connecting shaft rotatably inserted into the fixed plate.

[0007] Further, the side wall of the two connecting parts is fixedly provided with a handle, and an anti-skid sleeve is fixedly sleeved on the handle.

[0008] Further, the fixed rod and the two bent rod rods are provided with a spine rod, and the fixed rod and the bent rod rod are in abutment with the outer wall of the spine rod.

[0009] Further, the center of the bent rod rod is provided with a connecting hole, and the connecting rod is inserted into the connecting hole.

[0010] Further, the top end of the connecting rod is symmetrically provided with a mounting groove through the connecting hole, and a clamping block in abutment with the top end of the bent rod rod is elastically inserted into the mounting groove.

[0011] Further, a spring is embedded in the mounting groove, and an anti-falling part in abutment with the inner wall of the mounting groove is fixed on the clamping block.

[0012] Compared with the prior art, the beneficial effects of the present application are as follows:

[0013] The utility model discloses a scale disc is bonded on the top of fixed plate, and the scale pointer corresponding with scale disc is fixed on the top of rotating frame, and the scale pointer rotates synchronously on the top of scale disc in the process that handle drives rotating frame and mounting plate to rotate, and the bending curvature of spine rod is accurately controlled according to the value of scale pointer and the top of scale disc, and the accuracy of spine rod bending is improved.

[0014] The top of two mounting plates is fixed with a connecting rod, the bent rod rod is fitted on the connecting rod through the connecting hole, and the spring in the mounting groove pushes the clamping block after the connecting rod passes through the bent rod rod, so that the bent rod rod is kept fixed on the top of the mounting plate, and the bent rod rod is convenient to disassemble and replace after the clamping block is contracted into the mounting groove, and the convenience of bent rod rod maintenance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description can also be obtained by the drawings of some embodiments of the present application without creative labor.

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is another angle structural schematic view of the utility model;

[0018] Figure 3 It is a bent rod rod sectional view structural schematic view of the utility model;

[0019] Figure 4 The utility model discloses Figure 3 The enlarged schematic view of structure A in the middle.

[0020] The signs in the drawing are: 1, fixed plate;2, mounting plate;3, fixed rod;4, bending stick rod;5, connecting part;6, antiskid sleeve;7, handle;8, dial;9, scale pointer;10, rotating frame;11, connecting shaft;12, connecting hole;13, connecting rod;14, mounting groove;15, anti-dropping part;16, clamping block;17, spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] The specific embodiment is a precise bending stick device for spine surgery, and a structural schematic view thereof is shown in Figure 1 and Figure 2 The precise bending stick device for spine surgery comprises a fixed plate 1 and a rotating frame 10 rotatably arranged at the bottom end of the fixed plate 1, the two ends of the fixed plate 1 and the rotating frame 10 are respectively fixed with mounting plates 2 and connecting parts 5, and the central position of the fixed plate 1 is provided with a fixed rod 3, wherein a dial 8 is bonded on the fixed plate 1, the top end of the rotating frame 10 is fixed with a scale pointer 9 corresponding to the dial 8, the top end of each of the two mounting plates 2 is fixed with a connecting rod 13, and the mounting plate 2 is detachably fixed with a bending stick rod 4 through the connecting rod 13.

[0023] The rotating frame 10 is in V-shaped structure, the bottom end of the rotating frame 10 is fixed with a connecting shaft 11 rotatably inserted into the fixed plate 1, the side wall of each of the two connecting parts 5 is fixedly installed with a handle 7, the handle 7 is fixedly sleeved with an antiskid sleeve 6, a spine rod is arranged between the fixed rod 3 and the two bending stick rods 4, and the fixed rod 3 and the bending stick rod 4 are in abutment with the outer wall of the spine rod, in the process of rotating the rotating frame 10 and the mounting plate 2 by the handle 7, the scale pointer 9 rotates synchronously at the top end of the dial 8, the bending curvature of the spine rod is accurately controlled according to the numerical value of the scale pointer 9 and the top end of the dial 8, and the accuracy of the bending of the spine rod is improved.

[0024] As Figure 3 and Figure 4As shown, the connecting hole 12 is provided at the center of the bending rod 4, the connecting rod 13 is inserted into the connecting hole 12, the top end of the connecting rod 13 is provided with the mounting slot 14 through the connecting hole 12, the spring 17 is embedded in the mounting slot 14, the clamping block 16 is provided at the top end of the bending rod 4, the anti-disengagement part 15 is fixed on the clamping block 16, the bending rod 4 is connected to the connecting rod 13 through the connecting hole 12, the spring 17 in the mounting slot 14 pushes the clamping block 16 to protrude after the connecting rod 13 passes through the bending rod 4, so that the bending rod 4 is fixed on the top end of the mounting plate 2, and the bending rod 4 is disassembled and replaced after the clamping block 16 is retracted into the mounting slot 14.

[0025] Another angle structure diagram of the precise bending rod device for spine surgery is shown in FIG. 4. Figure 2 A cross-sectional structure diagram of the bending rod 4 is shown in FIG. 5. Figure 3 An enlarged diagram of the structure at A in FIG. 4 is shown in FIG. 6. Figure 3 An enlarged diagram of the structure at A in FIG. 4 is shown in FIG. 6. Figure 4 An enlarged diagram of the structure at A in FIG. 4 is shown in FIG. 6.

[0026] The bending rod 4 is connected to the connecting rod 13 through the connecting hole 12, the spring 17 in the mounting slot 14 pushes the clamping block 16 to protrude after the connecting rod 13 passes through the bending rod 4, so that the bending rod 4 is fixed on the top end of the mounting plate 2, the spine rod is placed between the fixed rod 3 and the two bending rods 4 after the bending rod 4 is fixed, the handle 7 drives the rotating frame 10 to rotate on the fixed plate 1, the scale pointer 9 rotates synchronously on the top end of the scale disc 8 in the process of driving the rotating frame 10 and the mounting plate 2 to rotate, the bending curvature of the spine rod is accurately controlled according to the numerical value on the top end of the scale pointer 9 and the scale disc 8, the bending rod 4 is separated from the connecting rod 13 after the clamping block 16 is retracted into the mounting slot 14 when the bending rod 4 is disassembled, the bending rod 4 is disassembled and replaced, and the convenience of maintaining the bending rod 4 is improved.

[0027] All the technical features in the embodiment can be freely combined according to actual needs.

[0028] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A precision spinal bending rod device, comprising a fixing plate (1) and a rotating frame (10) rotatably disposed at the bottom end of the fixing plate (1), characterized in that, The fixed plate (1) and the rotating frame (10) are respectively fixed with mounting plates (2) and connecting parts (5), and a fixing rod (3) is installed at the center of the fixed plate (1). A scale (8) is glued on the fixed plate (1), and a scale pointer (9) corresponding to the scale (8) is fixed at the top of the rotating frame (10). A connecting rod (13) is fixed at the top of both mounting plates (2), and a bent rod (4) is detachably fixed to the mounting plate (2) through the connecting rod (13).

2. The precision bending rod device for spinal surgery according to claim 1, characterized in that, The rotating frame (10) has a V-shaped structure, and the bottom end of the rotating frame (10) is fixed with a connecting shaft (11) that is rotatably inserted into the fixed plate (1).

3. The precision bending rod device for spinal surgery according to claim 1, characterized in that, Handles (7) are fixedly installed on the side walls of both connecting parts (5), and anti-slip sleeves (6) are fixedly fitted on the handles (7).

4. The precision bending rod device for spinal surgery according to claim 1, characterized in that, A spinal nail is provided between the fixed rod (3) and the two bent rods (4), and both the fixed rod (3) and the bent rods (4) abut against the outer wall of the spinal nail.

5. The precision bending rod device for spinal surgery according to claim 1, characterized in that, A connecting hole (12) is provided at the center of the bent rod (4), and the connecting rod (13) is inserted into the connecting hole (12).

6. The precision bending rod device for spinal surgery according to claim 5, characterized in that, The top end of the connecting rod (13) passes through the connecting hole (12) and is symmetrically provided with mounting grooves (14), and a locking block (16) that abuts against the top end of the bent rod (4) is elastically inserted into the mounting groove (14).

7. The precision bending rod device for spinal surgery according to claim 6, characterized in that, A spring (17) is embedded in the mounting groove (14), and an anti-detachment part (15) is fixed on the locking block (16) to abut against the inner wall of the mounting groove (14).

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