CN118453083B - A lumbar surgery fixation rod bending device - Google Patents

Abstract

The present invention provides a lumbar surgery fixation rod bending device, belonging to the technical field of bending devices. It includes a bending mechanism, which is used to bend the fixation rod, and the bending mechanism includes a first grip rod, a second grip rod, a resistance assembly and a spring connected to each other; a clamping and straightening mechanism, which is used to clamp and straighten the fixation rod, and the clamping and straightening mechanism is connected to the bending mechanism. The present invention realizes the bending, limiting and bending position adjustment of the fixation rod through the arrangement of the first grip rod, the second grip rod and the resistance assembly, avoids the deviation of the bending position, avoids the waste of materials, is simple, convenient and labor-saving to operate, and improves the operating efficiency. By setting the clamping and straightening mechanism, the clamping and limiting of the fixation rod and the precise positioning of the clamping position are realized, and the uneven cross section of the cut caused by the skewness of the fixation rod during the clamping process is avoided, and the subsequent processing work is avoided, and the operation time is saved. The bent fixation rod is restored to straightness, and the waste of materials caused by incorrect bending and discarding is avoided.

Description

A lumbar surgery fixation rod bending device

Technical Field

The invention relates to the technical field of bending equipment, and in particular to a lumbar surgery fixation rod bending equipment.

Background Art

During lumbar spine surgery, the fixation rod needs to be bent at a certain angle to ensure that it fits the lumbar spine. When bending the fixation rod, a bending device is usually required.

Most of the existing bending devices are divided into single-function and multi-function types. The single-function bending device can only bend, and the fixing rod cannot be limited when in use. The bending position of the fixing rod is easily offset due to operational errors, which will cause the fixing rod to be discarded due to problems with the bending position and cannot be used, thereby causing unnecessary waste. At the same time, because the rod is straight, the doctor will be inconvenienced when performing the bending operation due to problems with the rod. The multi-function bending device generally has the following functions: clamping and bending. When bending, like the single-function bending device, it cannot be limited. The fixing rod will also cause the bending position to deviate due to operational errors when bending, resulting in unnecessary waste of materials. When clamping, the fixing rod cannot be limited either. When the doctor is clamping, the fixing rod will be skewed due to improper clamping operation, which will cause the cross-section of the fixing rod to be uneven, and even spikes will appear. If it is used without processing, it will cause certain safety hazards to the patient. If the cross-section is processed, a lot of time will be wasted. If it is discarded, it will cause waste of materials. Therefore, the present application provides a lumbar surgery fixation rod bending device to meet the needs.

Summary of the invention

The technical problem to be solved by the present invention is to provide a lumbar surgery fixation rod bending device to solve the problem that the existing single-function bending device can only be bent, and the fixation rod cannot be limited when in use. The bending position of the fixation rod is easily offset due to operational errors, which causes the fixation rod to be unable to be used due to problems with the bending position, and further be discarded, thereby causing unnecessary waste. At the same time, because the rod is straight, the doctor will be inconvenienced when performing the bending operation due to problems with the rod. The multifunctional bending device generally has the following functions: clamping and bending. When bending, like the single-function bending device, it cannot be limited. The fixed rod will also cause the bending position to deviate due to operational errors when bending, resulting in unnecessary waste of materials. When clamping, the fixed rod cannot be limited either. When the doctor is clamping, the fixed rod will be skewed due to improper clamping operation, which will cause the cross-section of the fixed rod to be uneven, and even spikes will appear. If it is used without processing, it will cause certain safety hazards to the patient. If the cross-section is processed, a lot of time will be wasted. If it is discarded, it will cause waste of materials.

In order to solve the above technical problems, the present invention provides the following technical solutions:

A lumbar surgery fixation rod bending device comprises: a bending mechanism, used for bending the fixation rod, the bending mechanism comprising a first gripping rod, a second gripping rod, an abutment assembly and a spring connected to each other; a clamping and straightening mechanism, used for clamping and straightening the fixation rod, the clamping and straightening mechanism being connected to the bending mechanism; the clamping and straightening mechanism comprising a U-shaped frame, a clamping unit, a straightening unit and a guide unit connected to each other, the guide unit being connected to the second gripping rod.

Optionally, the first grip includes a first hand-holding section and a first arc section which are fixedly connected in sequence, the width of the first arc section is greater than the width of the first hand-holding section, a first sliding hole is provided at the top of the first arc section, the first sliding hole includes an upper slot body and a lower slot body which are connected, the cavity area of the upper slot body is greater than the cavity area of the lower slot body, first mounting grooves are provided at both ends of the first arc section, a U-shaped limiting pad is fixedly connected in the first mounting groove, a second mounting groove is provided in the U-shaped limiting pad, an additional component is provided in the second mounting groove, a first reinforcing rib is provided on the first hand-holding section and the first arc section, and a second reinforcing rib is provided on the first arc section.

Optionally, the U-shaped limiting pad includes a U-shaped clamping rod section, a pair of blocking sections and an extension section that are fixedly connected to each other; the second mounting groove includes a pair of outward expansion grooves and a positioning groove that are connected to each other, the positioning groove is located inside the U-shaped clamping rod section, and the outward expansion groove is located inside the blocking section; the supplementary component includes a U-shaped fixed section, a pair of curved sections and a pair of outward expansion sections that are fixedly connected to each other, the U-shaped fixed section is fixed in the positioning groove, and the curved section and the outward expansion section are both fixed in the outward expansion groove.

Optionally, the second grip includes a second hand-held section, a sleeve and a ring fixedly connected in sequence, the second hand-held section is provided with a plurality of finger embedding portions, the outer wall of the ring is provided with an annular groove, a plurality of sliding blocks are slidably connected in the annular groove, and the sliding blocks are fixedly connected to the inner wall of the first arc-shaped section.

Optionally, the interference assembly includes a bent rod and an arc block fixedly connected to each other, and a bolt threaded into the sleeve, an arc groove is provided at the top of the arc block, one end of the bent rod is rotatably connected to the sleeve and interferes with the bolt.

Optionally, the U-shaped frame includes an arc-shaped plate fixedly connected to the bottom end of the upper trough body, a second sliding hole is opened on the top of the arc-shaped plate, the second sliding hole is equal to the cavity area of the lower trough body, and both ends of the arc-shaped plate are fixedly connected to U-shaped plates.

Optionally, the guide unit includes a guide groove box fixedly connected to the two side walls of the arc plate, a guide block is slidably connected in the guide groove box, a vertical rod is fixedly connected between a pair of guide blocks, the bottom end of the vertical rod passes through the second sliding hole and is fixedly connected to a circular sleeve, and the bottom end of the circular sleeve passes through the first sliding hole and is fixedly sleeved on the circular ring.

Optionally, the clamp-breaking unit comprises a first U-shaped card plate fixedly connected to one of the U-shaped plates, the outer walls at both ends of the first U-shaped card plate are provided with a first weakened groove and a V-shaped groove, the inner wall of the first U-shaped card plate is fixedly connected to a first rubber anti-slip pad, and a clamp-breaking knife fixedly connected to the vertical pole is arranged on the inner side of the first U-shaped card plate, and the blade of the clamp-breaking knife corresponds to the V-shaped groove;

Optionally, the straightening unit includes a second U-shaped card plate fixedly connected to the other U-shaped plate, second weakened grooves and U-shaped grooves are provided on the outer walls at both ends of the second U-shaped card plate, a second rubber anti-slip pad is fixedly connected to the inner wall of the second U-shaped card plate, and a straight pliers knife fixedly connected to the vertical pole is provided on the inner side of the second U-shaped card plate, the blade of the straight pliers knife corresponds to the U-shaped groove; the blade of the straight pliers knife is arranged in an arc shape.

Optionally, the arc-shaped plate, the U-shaped plate, the guide groove box, the first U-shaped card plate and the second U-shaped card plate are an integrated structure, the first U-shaped card plate and the second U-shaped card plate are made of elastic material, a pair of third reinforcing ribs are provided on the U-shaped plate, and a fourth reinforcing rib is provided on the second grip rod.

Compared with the prior art, the present invention has at least the following beneficial effects:

In the above scheme, the bending of the fixed rod and the limiting of the fixed rod are achieved through the coordinated arrangement of the first grip rod, the second grip rod and the resistance assembly. At the same time, the bending position of the fixed rod can be adjusted, and the bending position deviation caused by operational errors during bending of the fixed rod is avoided, thereby avoiding waste of materials. At the same time, the operation is simple, convenient and labor-saving, which further improves the doctor's bending operation efficiency.

By setting up a clamping and straightening mechanism, in addition to the clamping function, the fixed limit of the fixing rod and the precise positioning of the clamping position are realized, which avoids the uneven cut section caused by the skewness of the fixing rod during the clamping process, avoids subsequent processing work, saves operation time, and also realizes the restoration of the straightness of the bent fixing rod, avoiding the waste of materials caused by incorrect bending and discarding.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and enable those skilled in the relevant art to make and use the present disclosure.

FIG1 is a schematic diagram of the three-dimensional structure of a lumbar surgery fixation rod bending device from a first-view perspective;

FIG2 is a schematic diagram of the three-dimensional structure of the lumbar surgery fixation rod bending device from a second viewing angle;

FIG3 is a schematic diagram of the enlarged structure of point A in FIG2;

FIG4 is a schematic diagram of a three-dimensional structure of a second grip;

FIG5 is a schematic diagram of a three-dimensional structure of a first grip;

FIG6 is an enlarged three-dimensional structural diagram of the clamp breaking and straightening mechanism;

Fig. 7 is an enlarged structural diagram of the coordination of the pliers cutting blade, the pliers straight blade and the guide unit;

FIG8 is a partially enlarged three-dimensional structural schematic diagram of a resistance component;

FIG9 is an enlarged three-dimensional structural schematic diagram of a U-shaped limiting pad;

FIG10 is a schematic diagram of a U-shaped limit pad cross-sectional enlarged three-dimensional structure;

FIG11 is an enlarged three-dimensional structural diagram of an additional component;

FIG. 12 is a schematic diagram of the assembled three-dimensional structure of FIG. 1 .

[Reference Symbols]

1. bending mechanism; 2. first gripping rod; 21. first hand-held section; 24. first arc-shaped section; 26. first sliding hole; 27. first mounting groove; 28. U-shaped limiting pad; 281. U-shaped clamping rod section; 282. blocking section; 283. extension section; 29. supplementary component; 291. U-shaped fixing section; 292. bending section; 293. expansion section; 210. second mounting groove; 3. second gripping rod; 31. second hand-held section; 32. finger embedding part; 35. sleeve; 36. ring; 37. annular groove; 4. abutment assembly; 41. bending rod; 42. arc block; 43. arc Groove; 44, bolt; 5, clamp-breaking and straightening mechanism; 51, U-shaped frame; 511, arc-shaped plate; 512, U-shaped plate; 52, clamp-breaking unit; 521, first U-shaped clamp plate; 522, first weakened groove; 523, V-shaped groove; 524, first rubber anti-skid pad; 525, clamp-breaking knife; 53, straightening unit; 531, second U-shaped clamp plate; 532, second weakened groove; 533, U-shaped groove; 534, second rubber anti-skid pad; 535, clamp-straightening knife; 54, guide unit; 541, guide groove box; 542, guide block; 543, vertical pole; 544, circular sleeve; 6, spring.

As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims.

DETAILED DESCRIPTION

The following is a detailed description of a lumbar surgery fixation rod bending device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

It will be understood that the meanings of “on,” “over,” and “above” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

As shown in Figures 1 to 12, an embodiment of the present invention provides a lumbar surgery fixation rod bending device, including: a bending mechanism 1, used for bending the fixing rod, the bending mechanism 1 includes a first grip rod 2, a second grip rod 3, a resistance assembly 4 and a spring 6 connected to each other; a clamping and straightening mechanism 5, used for clamping and straightening the fixing rod, the clamping and straightening mechanism 5 is connected to the bending mechanism 1; the clamping and straightening mechanism 5 includes a connected U-shaped frame 51, a clamping unit 52, a straightening unit 53 and a guide unit 54, and the guide unit 54 is connected to the second grip rod 3.

As shown in Figures 2, 5, 9 to 11, the first grip 2 includes a first hand-held section 21 and a first arc section 24 which are fixedly connected in sequence. The width of the first arc section 24 is greater than the width of the first hand-held section 21. A first sliding hole 26 is provided at the top of the first arc section 24. The first sliding hole 26 includes an upper groove body and a lower groove body which are connected. The cavity area of the upper groove body is greater than the cavity area of the lower groove body. Both ends of the first arc section 24 are provided with a first mounting groove 27. A U-shaped limiting pad 28 is fixedly connected in the first mounting groove 27. The U-shaped limiting pad 28 is provided with a second mounting groove 210, and an additional component 29 is provided in the second mounting groove 210. The first hand-held section 21 and the first arc section 24 are provided with a first reinforcing rib, and the first arc section 24 is provided with a second reinforcing rib. In order to strengthen the structural strength of the first hand-held section 21 and the first arc section 24 and avoid deformation during use, the U-shaped limiting pad 28 is made of rubber material. The U-shaped limiting pad 28 includes a U-shaped clamping rod section 281, a pair of blocking sections 282 and an extension section that are fixedly connected to each other. 283; the extension section 283 is arranged in a flange shape, so that the fixing rod is not blocked when bending, and the inner side wall of the blocking section 282 is arranged in a convex shape, so as to block the fixing rod and prevent the fixing rod from falling off when bending. The second mounting groove 210 includes a pair of interconnected outward expansion grooves and positioning grooves, the positioning groove is located inside the U-shaped clamping rod section 281, and the outward expansion groove is located inside the blocking section 282; the supplementary component 29 includes a U-shaped fixing section 291, a pair of bending sections 292 and a pair of outward expansion sections 293 that are fixedly connected to each other. The U-shaped fixing section 291 is fixed in the positioning groove, the bending section 292 and the outward expansion section 293 are both fixed in the outward expansion groove, and the supplementary component 29 is made of elastic material. The supplementary component 29 is provided so that when the fixing rod is installed, the blocking section 282 will be squeezed and deformed, thereby increasing the shrinkage of the blocking section 282, further facilitating the fixing rod to enter the U-shaped fixing section 291, and further preventing the fixing rod from being blocked by the inner wall of the blocking section 282 during installation and being unable to be installed.

As shown in Figures 2 to 4, the second grip 3 includes a second hand-held section 31, a sleeve 35 and a ring 36 which are fixedly connected in sequence. The second hand-held section 31 is provided with a plurality of finger embedding portions 32. The finger embedding portions 32 are provided to facilitate the doctor's hand-held operation so that the doctor can apply force during operation. The sleeve 35 is provided to facilitate the installation of the interference component 4. An annular groove 37 is provided on the outer wall of the ring 36. A plurality of sliding blocks are slidably connected in the annular groove 37. The sliding blocks are fixedly connected to the inner wall of the first arc section 24. This is a prior art and is not shown in the figure. The purpose of the setting is to limit the ring 36 and facilitate the rotation of the ring 36. A fourth reinforcing rib is provided on the second grip 3 to strengthen the structural strength of the second grip 3.

As shown in Figures 3 and 8, the interference component 4 includes a bent rod 41 and an arc block 42 fixedly connected to each other, and a bolt 44 screwed into the sleeve 35. An arc groove 43 is provided at the top of the arc block 42. One end of the bent rod 41 is rotatably connected to the sleeve 35 and interferes with the bolt 44. The bolt 44 is provided to facilitate locking the bent rod 41 and adjusting the angle of the arc block 42, and further to adjust the bending position of the fixed rod. The arc groove 43 is provided to limit the fixed rod to prevent the fixed rod from detaching.

Through the coordinated arrangement of the first gripping rod 2, the second gripping rod 3 and the abutting assembly 4, during use, the fixing rod is first installed in the U-shaped clamping rod segment 281, and the blocking segment 282 is squeezed during the installation process, and the outward expansion segment 293 is also squeezed during the process, so that the other end of the outward expansion segment 293 moves in the outward expansion groove, and when the fixing rod enters the U-shaped clamping rod segment 281, the blocking segment 282 together with the outward expansion segment 293 will not be squeezed, and the blocking segment 282 and the outward expansion segment 293 return to their original position due to their own elasticity, so that the blocking segment 282 will support the bottom of the fixing rod, so that the fixing rod is fixed in the U-shaped clamping rod segment 281, and then the bolt 44 can be screwed to prevent it from conflicting with the bending rod 41, and then the bending rod 41 can be pulled to adjust the angle of the arc block 42, and after adjustment, the bolt 44 is screwed again to make it conflict with the bending rod 41, so that the bending angle of the fixing rod will be adjusted, and then the doctor can use the palm of his hand to The first gripping rod 2 and the second gripping rod 3 are held together. During this process, the base of the palm will contact the first gripping section 21, and the fingers will be placed in the finger embedding section 32 in sequence. The doctor will drive the second gripping section 31, the sleeve 35 and the ring 36 to rotate by tightly holding the fingers. The spring 6 is squeezed between the second gripping section 31 and the first gripping section 21, and the ring 36 is also rotated with the cooperation of the annular groove 37 and the sliding block. The sleeve 35 will drive the bending rod 41 to move upward during the rotation, and then the arc block 42 will move upward, further bending the fixed rod. Compared with the existing bending device, the above structure in the present invention not only realizes the bending of the fixed rod, but also realizes the limiting of the fixed rod. At the same time, the bending position of the fixed rod can be adjusted, and the bending position deviation caused by operational errors during bending of the fixed rod is avoided, thereby avoiding material waste. At the same time, the operation is simple, convenient and labor-saving, further improving the bending operation efficiency of the doctor.

As shown in Figures 3, 5 and 7, the U-shaped frame 51 includes an arc-shaped plate 511 fixedly connected to the bottom end of the upper trough body, a second sliding hole is opened on the top of the arc-shaped plate 511, and the second sliding hole is equal to the cavity area of the lower trough body. Both ends of the arc-shaped plate 511 are fixedly connected to the U-shaped plate 512, and the guide unit 54 includes a guide groove box 541 fixedly connected to the two side walls of the arc-shaped plate 511, the guide groove box 541 is arranged in an arc shape, and a guide block 542 is slidably connected in the guide groove box 541, and a vertical rod 543 is fixedly connected between a pair of guide blocks 542, and the bottom end of the vertical rod 543 passes through the second sliding hole and is fixedly connected to a circular sleeve 544, and the bottom end of the circular sleeve 544 passes through the first sliding hole 26 and is fixedly sleeved on the ring 36, and the clamping unit 52 includes a first U-shaped clamp fixedly connected to one of the U-shaped plates 512 Plate 521, the outer walls of both ends of the first U-shaped card plate 521 are provided with first weakened grooves 522 and V-shaped grooves 523, the inner wall of the first U-shaped card plate 521 is fixedly connected to a first rubber anti-skid pad 524, the inner side of the first U-shaped card plate 521 is provided with a pliers cutting knife 525 fixedly connected to the vertical pole 543, and the blade of the pliers cutting knife 525 corresponds to the V-shaped groove 523; the straightening unit 53 includes a second U-shaped card plate 531 fixedly connected to another U-shaped plate 512, the outer walls of both ends of the second U-shaped card plate 531 are provided with second weakened grooves 532 and U-shaped grooves 533, the inner wall of the second U-shaped card plate 531 is fixedly connected to a second rubber anti-skid pad 534, the inner side of the second U-shaped card plate 531 is provided with a pliers straight knife 535 fixedly connected to the vertical pole 543, and the blade of the pliers straight knife 535 corresponds to the U-shaped groove 533. The blade of the straight knife 535 of the pliers is arranged in an arc shape, and the arc plate 511, the U-shaped plate 512, the guide groove box 541, the first U-shaped clamp plate 521 and the second U-shaped clamp plate 531 are an integrated structure. The first U-shaped clamp plate 521 and the second U-shaped clamp plate 531 are made of elastic material, and a pair of third reinforcing ribs are provided on the U-shaped plate 512.

By providing the clamp-breaking and straightening mechanism 5, during use, if a longer fixing rod needs to be shortened, the fixing rod can be placed in the first U-shaped clamping plate 521 first. During the placement process, the fixing rod will squeeze the two ends of the first U-shaped clamping plate 521, and under the action of the first weakened groove 522, the ports at the two ends of the first U-shaped clamping plate 521 will be expanded, thereby facilitating the entry of the fixing rod. When the fixing rod enters the first rubber anti-slip pad 524, the two ends of the first U-shaped clamping plate 521 return to their original positions due to being free from external force, thereby fixing the fixing rod in the first U-shaped clamping plate 521. Afterwards, the position of the fixing rod to be cut can be adjusted by pushing the fixing rod, and the position to be cut is aligned with the blade of the clamp-breaking knife 525. The first gripping rod 2 and the second gripping rod 3 are brought close to each other by hand, the base of the palm will contact the first hand-holding section 21, and the fingers will follow The doctor then places the second grip section 31, the sleeve 35 and the ring 36 in the finger embedding portion 32, and drives the rotation of the second grip section 31, the sleeve 35 and the ring 36 by tightly grasping the fingers. The spring 6 is squeezed between the second grip section 31 and the first grip section 21, and the ring 36 is also rotated under the cooperation of the annular groove 37 and the sliding block. The ring 36 drives the circular sleeve 544 to rotate, and at the same time, the guide block 542 slides in the guide groove box 541, and the vertical rod 543 moves toward the first U-shaped clamp plate 521, so that the blade of the pliers cutting knife 525 enters the V-shaped groove 523 and contacts the fixing rod. When the first grip rod 2 and the second grip rod 3 are tightly grasped, the blade of the pliers cutting knife 525 will cut the fixing rod. If the bent and misplaced fixing rod needs to be straightened, the fixing rod can be placed in the second U-shaped clamp plate 531 first. During the placement process, the fixing rod will squeeze the fixing rod. The two ends of the second U-shaped clamp 531 are pressed, and under the action of the second weakened groove 532, the ports at both ends of the second U-shaped clamp 531 are expanded, thereby facilitating the entry of the fixing rod. When the fixing rod enters the second rubber anti-slip pad 534, the two ends of the second U-shaped clamp 531 are restored to their original positions due to being free from external force, thereby fixing the fixing rod in the second U-shaped clamp 531. Thereafter, the position where the fixing rod needs to be straightened can be adjusted by pushing the fixing rod, and the position to be straightened is aligned with the blade of the pliers straight knife 535. The first gripping rod 2 and the second gripping rod 3 are pulled away from each other, thereby driving the second hand-holding section 31, the sleeve 35 and the ring 36 to rotate. The spring 6 is stretched between the second hand-holding section 31 and the first hand-holding section 21, and the ring 36 is also rotated under the cooperation of the annular groove 37 and the sliding block, and the ring 36 drives the The sleeve 544 rotates, which in turn causes the guide block 542 to slide in the guide groove box 541, and the vertical rod 543 to move toward the second U-shaped clamp plate 531, and causes the blade of the straight knife 535 to enter the U-shaped groove 533 and contact the bent part of the fixed rod. When the first grip rod 2 and the second grip rod 3 are pulled hard, the blade of the cutting knife 525 will press the fixed rod to straighten it. Compared with the existing bending devices, the present invention can achieve the function of cutting through the above structure, and realizes the fixed limit of the fixed rod and the precise positioning of the cutting position, thereby avoiding the situation where the fixed rod is skewed during the cutting process, resulting in an uneven cut cross section, avoiding subsequent processing work, and saving operation time. In addition, the present invention can restore the bent fixed rod to straightness through the above structure, thereby avoiding material waste caused by incorrect bending and discarding.

According to the technical solution provided by the present invention, when the fixing rod needs to be bent, the fixing rod is first installed in the U-shaped clamping rod segment 281. During the installation process, the blocking segment 282 will be squeezed, and the outward expansion segment 293 will also be squeezed during the process, so that the other end of the outward expansion segment 293 will move in the outward expansion groove. When the fixing rod enters the U-shaped clamping rod segment 281, the blocking segment 282 and the outward expansion segment 293 will not be squeezed. Through the elasticity of the blocking segment 282 and the restoration of the outward expansion segment 293 to its original position due to its own elastic material, the blocking segment 282 will support the bottom of the fixing rod, so that the fixing rod is fixed in the U-shaped clamping rod segment 281. After that, the bolt 44 can be screwed to prevent it from interfering with the bending rod 41, and then the bending rod 41 can be pulled to adjust the arc block. The doctor then tightens his fingers to drive the second grip section 31, the sleeve 35 and the ring 36 to rotate. The spring 6 is squeezed between the second grip section 31 and the first grip section 21, and the ring 36 is rotated in cooperation with the annular groove 37 and the sliding block. The sleeve 35 drives the bending rod 41 to move upward during the rotation, and then the arc block 42 moves upward, further bending the fixing rod.

When a longer fixing rod needs to be shortened, the fixing rod can be placed in the first U-shaped clamp plate 521 first. During the placement process, the fixing rod will squeeze the two ends of the first U-shaped clamp plate 521, and under the action of the first weakened groove 522, the ports at the two ends of the first U-shaped clamp plate 521 will be expanded, thereby facilitating the entry of the fixing rod. When the fixing rod enters the first rubber anti-slip pad 524, the two ends of the first U-shaped clamp plate 521 return to their original positions due to being free from external force, thereby fixing the fixing rod in the first U-shaped clamp plate 521. Thereafter, the position of the fixing rod to be cut can be adjusted by pushing the fixing rod, and the position to be cut is aligned with the blade of the pliers cutting knife 525. The first gripping rod 2 and the second gripping rod 3 are brought close to each other by hand, and the base of the palm will align with the first gripping rod. The doctor's fingers are placed in the finger embedding portion 32 in sequence, and the doctor drives the second hand-held segment 31, the sleeve 35 and the ring 36 to rotate by tightly holding the fingers. The spring 6 is squeezed between the second hand-held segment 31 and the first hand-held segment 21, and the ring 36 is rotated in cooperation with the annular groove 37 and the sliding block. The ring 36 drives the circular sleeve 544 to rotate, and at the same time, the guide block 542 slides in the guide groove box 541, and the vertical rod 543 moves toward the first U-shaped clamp plate 521, and the blade of the pliers cutting knife 525 enters the V-shaped groove 523 and contacts the fixed rod. When the first grip rod 2 and the second grip rod 3 are tightly held, the blade of the pliers cutting knife 525 will cut the fixed rod.

If it is necessary to straighten the bent and misplaced fixing rod, the fixing rod can be placed in the second U-shaped clamping plate 531 first. During the placement process, the fixing rod will squeeze the two ends of the second U-shaped clamping plate 531, and under the action of the second weakened groove 532, the ports at the two ends of the second U-shaped clamping plate 531 will be expanded, thereby facilitating the entry of the fixing rod. When the fixing rod enters the second rubber anti-skid pad 534, the two ends of the second U-shaped clamping plate 531 return to their original positions due to the lack of external force, thereby fixing the fixing rod in the second U-shaped clamping plate 531. Afterwards, the position of the fixing rod to be straightened can be adjusted by pushing the fixing rod, and the position to be straightened is aligned with the blade of the pliers straight knife 535, and the first grip rod is pulled to 2. The second gripping rods 3 move away from each other, which in turn drives the second hand-held section 31, the sleeve 35 and the ring 36 to rotate. The spring 6 is stretched between the second hand-held section 31 and the first hand-held section 21, and the ring 36 rotates in cooperation with the annular groove 37 and the sliding block. The ring 36 drives the circular sleeve 544 to rotate, and at the same time causes the guide block 542 to slide in the guide groove box 541, and causes the vertical rod 543 to move toward the second U-shaped clamp plate 531, and causes the blade of the pliers straight knife 535 to enter the U-shaped groove 533 and contact the bent part of the fixed rod. When the first gripping rod 2 and the second gripping rod 3 are pulled hard, the blade of the pliers breaking knife 525 presses the fixed rod to straighten it.

The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims (10)

1. A lumbar surgery fixation rod bending device, characterized in that it comprises: A bending mechanism, used for bending the fixed rod, the bending mechanism comprising a first gripping rod, a second gripping rod, a resisting assembly and a spring connected to each other; A clamping and straightening mechanism, used for clamping and straightening the fixed rod, the clamping and straightening mechanism is connected to the bending mechanism; The clamp-breaking and straightening mechanism comprises a U-shaped frame, a clamp-breaking unit, a straightening unit and a guiding unit which are connected to each other, and the guiding unit is connected to the second gripping rod. 2. The lumbar vertebra surgical fixation rod bending device according to claim 1 is characterized in that the first grip rod comprises a first hand-held section and a first arc section fixedly connected in sequence, the width of the first arc section is greater than the width of the first hand-held section, a first sliding hole is provided at the top of the first arc section, the first sliding hole comprises an upper groove body and a lower groove body that are connected, the cavity area of the upper groove body is greater than the cavity area of the lower groove body, a first mounting groove is provided at both ends of the first arc section, a U-shaped limiting pad is fixedly connected in the first mounting groove, a second mounting groove is provided in the U-shaped limiting pad, an additional component is provided in the second mounting groove, a first reinforcing rib is provided on the first hand-held section and the first arc section, and a second reinforcing rib is provided on the first arc section. 3. The lumbar surgery fixation rod bending device according to claim 2, characterized in that the U-shaped limiting pad comprises a U-shaped clamping rod section, a pair of blocking sections and an extension section that are fixedly connected to each other; The second installation groove comprises a pair of outward expansion grooves and a positioning groove which are connected to each other, wherein the positioning groove is located inside the U-shaped clamping rod section, and the outward expansion groove is located inside the blocking section; The supplementary component includes a U-shaped fixed section, a pair of curved sections and a pair of outward expansion sections which are fixedly connected to each other. The U-shaped fixed section is fixed in the positioning groove, and the curved section and the outward expansion section are both fixed in the outward expansion groove. 4. The lumbar surgical fixation rod bending device according to claim 2 is characterized in that the second grip rod includes a second hand-held section, a sleeve and a ring fixedly connected in sequence, a plurality of finger embedding portions are provided on the second hand-held section, an annular groove is provided on the outer wall of the ring, a plurality of sliding blocks are slidably connected in the annular groove, and the sliding blocks are fixedly connected to the inner wall of the first arc section. 5. The lumbar surgical fixation rod bending device according to claim 4 is characterized in that the interference component includes a bending rod and an arc block fixedly connected to each other, and a bolt threaded into the sleeve, an arc groove is provided at the top of the arc block, one end of the bending rod is rotatably connected to the sleeve and interferes with the bolt. 6. The lumbar surgery fixation rod bending device according to claim 4 is characterized in that the U-shaped frame includes an arc-shaped plate fixedly connected to the bottom end of the upper trough body, a second sliding hole is opened on the top of the arc-shaped plate, the second sliding hole is equal to the cavity area of the lower trough body, and both ends of the arc-shaped plate are fixedly connected with U-shaped plates. 7. The lumbar surgery fixation rod bending device according to claim 6 is characterized in that the guide unit includes a guide groove box fixedly connected to the two side walls of the arc plate, a guide block is slidably connected in the guide groove box, a vertical rod is fixedly connected between a pair of guide blocks, the bottom end of the vertical rod passes through the second sliding hole and is fixedly connected with a circular sleeve, and the bottom end of the circular sleeve passes through the first sliding hole and is fixedly sleeved on the circular ring. 8. The lumbar surgery fixation rod bending device according to claim 7 is characterized in that the clamp breaking unit includes a first U-shaped clamp plate fixedly connected to one of the U-shaped plates, the outer walls at both ends of the first U-shaped clamp plate are provided with a first weakened groove and a V-shaped groove, the inner wall of the first U-shaped clamp plate is fixedly connected to a first rubber anti-slip pad, and a clamp breaking knife fixedly connected to the vertical pole is provided on the inner side of the first U-shaped clamp plate, and the blade of the clamp breaking knife corresponds to the V-shaped groove. 9. The lumbar spine surgical fixation rod bending device according to claim 8 is characterized in that the straightening unit includes a second U-shaped clamp fixedly connected to the other U-shaped plate, the outer walls at both ends of the second U-shaped clamp are provided with a second weakened groove and a U-shaped groove, the inner wall of the second U-shaped clamp is fixedly connected to a second rubber anti-slip pad, and the inner side of the second U-shaped clamp is provided with a straight pliers knife fixedly connected to the vertical pole, the blade of the straight pliers knife corresponds to the U-shaped groove; the blade of the straight pliers knife is arranged in an arc shape. 10. The lumbar surgery fixation rod bending device according to claim 9 is characterized in that the arc plate, the U-shaped plate, the guide groove box, the first U-shaped clip plate and the second U-shaped clip plate are an integrated structure, the first U-shaped clip plate and the second U-shaped clip plate are made of elastic material, a pair of third reinforcing ribs are provided on the U-shaped plate, and a fourth reinforcing rib is provided on the second grip rod.