Screw insertion measuring device

Abstract

The present invention provides a screw insertion measurement device, belonging to the field of medical equipment. The device comprises a measurement assembly, comprising a measuring portion, comprising a housing, a top plate clamped to the upper end of the housing, an electric push rod fixed to the upper end of the housing, a pressure sensor fixed to the telescopic end of the electric push rod, an adjustment seat fixed to the outside of the pressure sensor, a torque measuring member connected to the lower end of the adjustment seat for measuring torque during screw insertion, and a drive assembly connected to the interior of the adjustment seat for driving the torque measuring member to rotate. The pressure sensor is used to detect the pressure value applied by the electric push rod to the screw. The present invention can detect the torque value and adjust the torque output to the torque measuring member to maintain a constant torque. Angular momentum can be more accurately calculated by multiplying torque by time, thereby improving the accuracy and stability of angular momentum measurement.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment, and more particularly to a screw insertion measurement device. Background Art

[0002] In orthopedic surgery, the stability of screws needs to be measured when they are inserted into bones. The angular momentum of the screw during insertion can reflect the stability of the screw. The angular momentum during screw insertion is usually referred to as torque, which describes the rotational torque applied when the screw is screwed into the bone. Angular momentum is of great significance in determining whether the screw is stable.

[0003] The result of torque multiplied by time is the change in angular momentum. In physics, torque (or moment of force) is the effect of a force that causes an object to rotate, while angular momentum is a quantity that describes the rotational state of an object. When torque acts on an object, multiplying it by the action time gives the change in angular momentum ΔL. The formula is: ΔL=τ×t, where τ is torque (the effect of a force on the axis of rotation, defined as force multiplied by the lever arm (the perpendicular distance from the line of action of the force to the axis of rotation), measured in Newton meters), and t is the duration of the action, measured in seconds (s).

[0004] In order to measure the torque of screws inserted into bones and determine the stability of screw insertion, the existing technology (Chinese invention patent application publication number CN117643496A) discloses a personalized screw placement device for thoracic and lumbar screws. By connecting a torque measuring component to one end of the gripping assembly, the real-time torque can be measured during the screwing process. By measuring the real-time torque, the user can obtain information such as the hardness and density of the patient's bone.

[0005] Although the screw insertion devices in the prior art can achieve real-time torque measurement, since the existing measurement devices all rely on manual rotation of the measurement device to insert the screw into the bone, the torque is not constant during the manual force insertion process, but varies with the operator's force. Therefore, the torque value at each moment in time will be different. Since the calculation of angular momentum is based on the product of torque and time, when the torque fluctuates, assuming that the torque is constant will introduce a large error, which will cause the calculated angular momentum value to differ from the actual value. The error caused by this torque fluctuation will accumulate throughout the entire rotation process, resulting in inaccurate angular momentum measurement. Summary of the Invention

[0006] In view of the problems existing in the prior art, the present invention aims to provide a screw insertion measurement device.

[0007] In order to solve the above problems, the present invention adopts the following technical solutions:

[0008] A screw insertion measurement device includes a measurement assembly, the measurement assembly including a measuring portion, and the measurement portion includes a housing, a top plate clamped to the upper end of the housing, an electric push rod fixed to the upper end of the housing, a pressure sensor fixed to the telescopic end of the electric push rod, an adjustment seat fixed to the outside of the pressure sensor, a torque measuring member connected to the lower end of the adjustment seat for measuring torque during screw insertion, and a drive assembly connected to the interior of the adjustment seat and for driving the torque measuring member to rotate;

[0009] The pressure sensor is used to detect the pressure value applied by the electric push rod to the screw. The torque measuring component measures and times the torque when the screw is inserted and determines the torque value according to a preset value. The torque measuring component is connected to the drive assembly to adjust the power output of the drive assembly according to the torque value.

[0010] Optionally, the drive assembly includes a motor fixedly connected to the interior of the adjustment seat, a second gear rotatably connected to the interior of the adjustment seat and fixed to the motor output shaft, a third gear rotatably connected to the interior of the adjustment seat and meshing with the second gear, a turntable rotatably connected to the lower end of the adjustment seat, and the upper end of the turntable is fixed to the third gear, and the torque measuring component is fixed to the lower end of the turntable.

[0011] Optionally, a slide rail is fixedly connected to the inner wall of the shell, and a slide bar slidably connected to the slide rail is fixedly connected to the outer surface of the adjustment seat.

[0012] Optionally, the lower end of the torque measuring member is fixedly connected to a driving head, and the lower end of the driving head is fixedly connected to a stabilizing measurement and wave reduction positioning part, the stabilizing measurement and wave reduction positioning part includes a hexagonal driving part and a column fixedly connected to the lower end of the driving head, a connecting block movably inserted into the inside of the hexagonal driving part and movably sleeved on the outside of the column, a pressure plate fixed to the lower end of the connecting block, a second spring sleeved on the outside of the column, a limiting ring and a plurality of inclined blocks fixed to the outside of the connecting block, a plurality of second movable grooves opened in the hexagonal driving part, a plurality of movable blocks sliding in the plurality of second movable grooves, an inclined surface opened on one side of the plurality of movable blocks and respectively matched with the plurality of inclined blocks, and a plurality of driving seats respectively fixed on the other side of the plurality of movable blocks, and the two ends of the second spring are respectively connected to the lower end of the driving head and the upper end of the connecting block.

[0013] Optionally, side plates are fixed on both sides of the movable block, and a first guide column is movably inserted inside the side plate, both ends of the first guide column are fixed on the inner wall of the second movable groove, and a third spring is also sleeved on the outside of the first guide column, and both ends of the third spring are respectively connected to the inner wall of the second movable groove and one side of the side plate.

[0014] Optionally, two third movable grooves are symmetrically opened inside the driving seat, and the multiple driving seats are connected by multiple stabilizing connecting parts, and the stabilizing connecting parts include a connecting seat located between two adjacent driving seats, two plug-in blocks symmetrically fixed on both sides of the connecting seat, a second guide column movably inserted into the plug-in blocks, and a fourth spring sleeved on the outside of the second guide column. The two plug-in blocks are respectively inserted into the third movable grooves in the two adjacent driving seats, and both ends of the second guide column are fixed on the inner wall of the third movable groove. The two ends of the fourth spring are respectively connected to the third movable groove and the plug-in blocks.

[0015] Optionally, a resistance-increasing flange is integrally formed at the lower end of the drive head.

[0016] Optionally, it also includes a support adjustment part for supporting the measuring component, and the support adjustment part includes two symmetrically arranged rails, a slide slidingly connected to the two rails, a first positioning bolt screwed in the slide and positioning the slide, a clamping fixing part fixed to the lower end of the rail for positioning the rail, a first movable groove provided inside the slide, a first guide groove and a second guide groove provided inside the slide and connected to the first movable groove, an angle adjustment part slidingly connected to the first movable groove, and a positioning screw hole provided on one side of the slide for positioning the angle adjustment part, and the shell is connected in the angle adjustment part.

[0017] Optionally, the angle adjustment portion includes a hollow slider sliding in the first movable groove, a guide extension portion integrally formed on both sides of the hollow slider and movably connected to the first guide groove and the second guide groove respectively, the shell is rotatably connected to the inner wall of the hollow slider, and the hollow slider is rotatably connected to a first gear fixed to one side of the shell, a fourth movable groove is opened inside the hollow slider, and a pressure seat is movably connected in the fourth movable groove, two guide rods are movably inserted inside the pressure seat, and both ends of the guide rods are fixed to the inner wall of the fourth movable groove, a first spring is sleeved on the outside of the guide rod, and the two ends of the first spring are respectively connected to the fourth movable groove and the pressure seat, and the lower end of the pressure seat is integrally formed with a tooth key for limiting the first gear.

[0018] Optionally, one of the guide extensions passes through the second guide slot and extends outward, a second positioning bolt is screwed into the outward-extending guide extension, and the second positioning bolt passes through the guide extension and is screwed into the positioning screw hole.

[0019] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0020] In the above scheme, a measuring component is set up, and the torque measuring component is driven by the driving component to rotate and insert the screw into the bone. During this process, the torque measuring component detects the torque value and adjusts the torque output to the torque measuring component to maintain a constant torque. The angular momentum can be more accurately calculated by the product of torque and time, improving the accuracy and stability of angular momentum measurement. Even if changes such as friction and resistance are encountered during operation, the torque output can be dynamically adjusted to achieve relatively stable torque application, which is more accurate than manual control. The torque output can be strictly maintained according to the set target value, avoiding fluctuations and instability caused by human operation, ensuring precise torque control, and eliminating the need for the operator to repeatedly adjust the force during operation. This reduces the workload and complexity of manual operation, while reducing the operator's fatigue, ensuring stable operation results, and reducing the burden on doctors.

[0021] By providing a stabilizing and wave-reducing positioning part, when the hexagonal drive part is inserted into the hexagonal hole of the screw, the pressure plate can push the movable block inside the hexagonal drive part outward, so that the drive seat is tightly attached to the inner wall of the hexagonal hole. Through the close-fitting design of the hexagonal drive part, the mechanical coupling between the hexagonal drive part and the screw becomes more stable and consistent. This stable contact reduces the angular velocity fluctuation during the rotation of the screw and makes the torque transmission more stable. Therefore, it can not only improve the accuracy of the operation, but also make the measurement results of the angular momentum more accurate, reduce the torque and angular velocity fluctuations caused by poor contact, and at the same time increase the friction between the torque driver and the screw, ensure a firmer contact, reduce the force loss or screw damage caused by slipping during operation, reduce the energy loss caused by uneven contact, ensure that the applied torque can be effectively transmitted to the screw, thereby improving the torque transmission efficiency, and can also reduce the wear caused by relative motion and extend the service life of the tool and screw.

[0022] By providing a stabilizing connection portion, when the driving seat moves, the connecting seat can be driven to move accordingly. Multiple driving seats are connected through the connecting seat, which improves the stability of the driving seat. At the same time, the connecting seat can also contact the inner wall of the hexagonal hole, increasing the overall contact area. The increase in contact area helps to evenly disperse the torque, reduce local stress concentration, ensure that the torque transmission is more stable and reliable, improve the stability during operation, and also improve the stability of the hexagonal driving portion. The connecting seat can also evenly disperse the pressure during torque transmission, so that the driving force is more evenly distributed on the inner wall of the hexagonal hole. When the torque screwdriver applies a large torque, it is not easy for the tool to slip due to insufficient local contact force, thereby ensuring reliable transmission of torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 is a cross-sectional view of the measuring assembly of the present invention;

[0026] Figure 3 Schematic diagram of the structure of the slide bar and the drive head of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the drive assembly of the present invention;

[0028] Figure 5 This is a schematic structural diagram of the resistance-increasing flange of the present invention;

[0029] Figure 6 Schematic diagram of the structure of the second movable groove, the third movable groove and the third spring of the present invention;

[0030] Figure 7 For the present invention Figure 6 A schematic diagram of the structure at center A;

[0031] Figure 8 This is a structural diagram of the stabilizing and wave-reducing positioning unit of the present invention;

[0032] Figure 9 It is a structural schematic diagram of the column, the second spring and the driving seat of the present invention;

[0033] Figure 10 This is a schematic structural diagram of the stabilizing connection portion and the third movable groove of the present invention;

[0034] Figure 11 It is a structural schematic diagram of the hollow slider, the guide extension part and the pressure seat of the present invention;

[0035] Figure 12 Schematic diagram of the structure of the angle adjustment part of the present invention;

[0036] Figure 13 This is an enlarged schematic diagram of the structure at B in the present invention 12.

[0037] [Reference Signs]

[0038] 1. Support and adjustment unit; 11. Track; 12. Slide; 13. First positioning bolt; 14. Clamping and fixing unit; 15. First movable groove; 16. Angle adjustment unit; 161. Hollow slider; 162. Guide extension; 163. Second positioning bolt; 164. Pressure seat; 165. First gear; 166. Guide rod; 167. First spring; 168. Tooth key; 17. First guide groove; 18. Second guide groove; 19. Positioning screw hole; 2. Measuring assembly; 21. Measuring unit; 211. Housing; 212. Top plate; 213. Electric push rod; 214. Adjustment seat; 215. Pressure sensor; 216. Slide bar; 217. Slide rail; 218. Torque measuring unit; 2 19. Drive head; 220. Resistance-increasing flange; 22. Stabilizing and wave-reducing positioning part; 221. Hexagonal drive part; 222. Pressure plate; 223. Connecting block; 224. Column; 225. Second spring; 226. Limiting ring; 227. Bevel block; 228. Bevel; 229. Movable block; 23. Second movable groove; 231. Side plate; 232. First guide column; 233. Third spring; 24. Drive seat; 241. Third movable groove; 25. Stabilizing connecting part; 251. Connecting seat; 252. Insert block; 253. Second guide column; 254. Fourth spring; 26. Drive assembly; 261. Motor; 262. Second gear; 263. Third gear; 264. Turntable.

[0039] 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. DETAILED DESCRIPTION

[0040] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative methods for implementing certain known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0041] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0042] In general, terms can be understood, at least in part, from their 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.

[0043] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0044] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated 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 should be similarly interpreted accordingly.

[0045] like Figures 1 to 13 As shown, an embodiment of the present invention provides a screw insertion measurement device, including a measuring component 2, wherein the measuring component 2 includes a measuring part 21, and the measuring part 21 includes a shell 211, a top plate 212 clamped on the upper end of the shell 211, an electric push rod 213 fixed to the upper end of the shell 211, a pressure sensor 215 fixed to the telescopic end of the electric push rod 213, an adjustment seat 214 fixed to the outside of the pressure sensor 215, a torque measuring member 218 connected to the lower end of the adjustment seat 214 for measuring the torque during screw insertion, and a driving component 26 connected to the inside of the adjustment seat 214 and used to drive the torque measuring member 218 to rotate.

[0046] The pressure sensor 215 is used to detect the pressure value applied to the screw by the electric push rod 213. The torque measuring component 218 measures and times the torque when the screw is inserted and determines the torque value according to a preset value. The torque measuring component 218 is connected to the drive component 26 to adjust the power output of the drive component 26 according to the torque value.

[0047] The driving assembly 26 includes a motor 261 fixedly connected to the interior of the adjustment base 214, a second gear 262 rotatably connected to the interior of the adjustment base 214 and fixed to the output shaft of the motor 261, a third gear 263 rotatably connected to the interior of the adjustment base 214 and meshing with the second gear 262, and a turntable 264 rotatably connected to the lower end of the adjustment base 214, with the upper end of the turntable 264 fixedly connected to the third gear 263, and the torque measuring member 218 fixedly connected to the lower end of the turntable 264.

[0048] A slide rail 217 is fixedly connected to the inner wall of the housing 211 , and a slide bar 216 slidably connected to the slide rail 217 is fixedly connected to the outer surface of the adjustment seat 214 .

[0049] By adopting the above technical solution, the bolt is placed at the lower end of the torque measuring member 218, and the electric push rod 213 is controlled to work and extend. The extension of the electric push rod 213 can drive the adjustment seat 214 to move downward inside the housing 211, and the adjustment seat 214 moves along the slide rail 217. When the adjustment seat 214 moves, it drives the torque measuring member 218 to move toward the bolt, thereby applying a certain pressure to the bolt. The force applied by the electric push rod 213 to the adjustment seat 214 and the bolt can be detected by the pressure sensor 215. When the pressure exceeds or is less than the preset pressure value, the electric push rod 213 can be adjusted to maintain the stability of the force applied when the screw is inserted. At the same time, the motor 261 can drive the second gear 262 to rotate, and the rotation of the second gear 262 drives the third gear 263 to rotate. The rotation of the third gear 263 drives the turntable 264 and the torque measuring member 218 fixed to the turntable 264 to rotate.

[0050] The torque measuring part 218 is a torque screwdriver with a torque measurement function, which is composed of a torque sensor (the core component of the torque screwdriver, used to sense the applied torque value, and the sensor converts the torque signal into an electrical signal), a power supply (usually a built-in rechargeable battery or a replaceable battery, which provides power for the electronic part of the torque screwdriver), a microprocessor (responsible for processing the signal from the torque sensor and transmitting the processed data to the display screen, and can also perform other functions such as storage, alarm, peak hold, etc.), etc., which will not be described in detail here. By rotating the torque measuring part 218 and inserting the bolt into the bone, the torque measuring part 218 can detect the torque of the screw. When the torque is greater than or less than the preset torque value, the motor 261 can adjust the output torque (in many power tools, the torque is proportional to the motor current). ratio, so by controlling the motor's current, the torque can be indirectly controlled. When the torque exceeds the set value, the motor control system will reduce the current (and thus the torque), so that the torque of the screw remains constant, and the angular momentum can be more accurately calculated by multiplying the torque by time, improving the accuracy and stability of angular momentum measurement. Even if changes such as friction and resistance are encountered during operation, the torque output can be dynamically adjusted to achieve a more stable torque application, which is more precise than manual control. The torque output can be strictly maintained according to the set target value, avoiding fluctuations and instability caused by human operation, ensuring precise torque control, and eliminating the need for the operator to repeatedly adjust the force during operation. This reduces the workload and complexity of manual operation, while alleviating operator fatigue, ensuring stable operation results, and reducing the burden on doctors.

[0051] The torque and time during the entire screw insertion process are calculated using the formula ΔL = τ × t to determine the angular momentum of the screw. If the torque remains constant but the angular momentum is high, this may indicate that the screw rotation has continued for a prolonged period. This may be due to the screw entering deeper into the bone or being inserted a longer distance. A larger angular momentum may indicate closer contact with the bone, resulting in better tightening. A smaller angular momentum may also mean that the screw has been inserted for a shorter period of time and has not yet fully entered the bone. This may indicate that the screw has not reached the desired depth or that the screw length is mismatched with the target bone segment. A smaller angular momentum may indicate that the screw is not tightened enough, resulting in poor fixation.

[0052] like Figures 5 to 9As shown, the torque measuring member 218 is fixedly connected to a driving head 219 at the lower end, and a stabilizing and reducing wave positioning portion 22 is fixedly connected to the lower end of the driving head 219. The stabilizing and reducing wave positioning portion 22 includes a hexagonal driving portion 221 and a column 224 fixed to the lower end of the driving head 219, a connecting block 223 movably plugged into the inside of the hexagonal driving portion 221 and movably sleeved on the outside of the column 224, a pressing plate 222 fixed to the lower end of the connecting block 223, a second spring 225 sleeved on the outside of the column 224, and a spring 226 fixed to the lower end of the connecting block 223. The limiting ring 226 and multiple inclined blocks 227 on the outside of the connecting block 223, the multiple second movable grooves 23 opened in the hexagonal driving part 221, the multiple movable blocks 229 slidingly connected in the multiple second movable grooves 23, the inclined surfaces 228 opened on one side of the multiple movable blocks 229 and respectively matched with the multiple inclined blocks 227, and the multiple driving seats 24 respectively fixed on the other side of the multiple movable blocks 229, and the two ends of the second spring 225 are respectively connected to the lower end of the driving head 219 and the upper end of the connecting block 223.

[0053] Both sides of the movable block 229 are fixedly connected with side plates 231, and a first guide column 232 is movably inserted inside the side plate 231. Both ends of the first guide column 232 are fixedly connected to the inner wall of the second movable groove 23, and a third spring 233 is also sleeved on the outside of the first guide column 232. The two ends of the third spring 233 are respectively connected to the inner wall of the second movable groove 23 and one side of the side plate 231.

[0054] The lower end of the driving head 219 is also integrally formed with a resistance-increasing flange 220. When the lower end of the driving head 219 approaches the upper surface of the screw, the resistance-increasing flange 220 can contact the upper surface of the bolt, thereby increasing the friction between the driving head 219 and the bolt.

[0055] By adopting the above technical solution, when the bolt is placed under the torque measuring member 218, the hexagonal driving portion 221 can be inserted into the inner six holes of the bolt. After the hexagonal driving portion 221 is inserted into the inner six holes of the bolt, the pressure plate 222 can contact the inner bottom wall of the inner six holes. Under the force applied by the electric push rod 213, the pressure plate 222 contacts the bottom wall of the inner six holes. The pressure plate 222 can push the lower end of the connecting block 223 into the hexagonal driving portion 221. At this time, the connecting block 223 can move along the column 224 inside the hexagonal driving portion 221 and toward the direction of the second spring 225. The connecting block 223 applies a force to the second spring 225 to contract the second spring 225. At the same time, when the connecting block 223 moves upward, the inclined block 227 also moves upward with the connecting block 223. When the inclined block 227 moves upward, it can cooperate with the inclined surface 228. The inclined block 227 applies a thrust to the movable block 229 through the inclined surface 228, pushing the movable block 229 to move in the second movable groove 23. When the movable block 229 moves, the driving seat 24 is also driven to move. In this way, when the connecting block 223 moves upward inside the hexagonal driving portion 221, it can drive multiple movable blocks 229 and multiple driving seats 24 moves, and when the movable block 229 moves, it drives the side plate 231 to move, and the side plate 231 moves in the second movable groove 23 along the first guide column 232, and the side plate 231 can exert a force on the third spring 233 to shrink the third spring 233, and the multiple driving seats 24 can move toward the inner wall direction of the six holes in the bolt, and one side of the multiple driving seats 24 can be tightly attached to the inner wall of the six holes in the bolt. Through the design of the multiple driving seats 24 tightly attached to the inner wall of the six holes, the mechanical coupling between the stable wave reduction positioning part 22 and the screw becomes more stable and consistent, and this stable contact makes the angle of the screw rotated more stable. Speed ​​fluctuations are reduced and torque transmission is more stable. Therefore, it can not only improve the accuracy of operation, but also make the measurement results of angular momentum more accurate, reduce torque and angular velocity fluctuations caused by poor contact, and at the same time increase the friction between the torque driver and the screw to ensure a firmer contact, reduce force loss or screw damage caused by slipping during operation, reduce energy loss due to uneven contact, ensure that the applied torque can be effectively transmitted to the screw, thereby improving torque transmission efficiency, and reducing wear caused by relative motion, extending the service life of the tool and screw.

[0056] like Figure 7 and Figure 10As shown, two third movable grooves 241 are symmetrically opened inside the driving seat 24, and the multiple driving seats 24 are connected by multiple stabilizing connecting parts 25, and the stabilizing connecting parts 25 include a connecting seat 251 located between two adjacent driving seats 24, two plug blocks 252 symmetrically fixed on both sides of the connecting seat 251, a second guide column 253 movably inserted into the plug blocks 252, and a fourth spring 254 sleeved on the outside of the second guide column 253. The two plug blocks 252 are respectively inserted into the third movable grooves 241 in the two adjacent driving seats 24, and both ends of the second guide column 253 are fixed on the inner wall of the third movable groove 241. The two ends of the fourth spring 254 are respectively connected to the third movable groove 241 and the plug block 252.

[0057] By adopting the above technical solution, when the multiple drive seats 24 move toward the inner wall of the hexagonal socket of the bolt, the spacing between the multiple drive seats 24 becomes larger, and the plug blocks 252 on both sides of the connecting seat 251 can extend from the adjacent drive seats 24. At the same time, the fourth spring 254 is squeezed and contracted, which can drive the connecting seat 251 to move toward the inner wall of the hexagonal socket, and one side of the connecting seat 251 can also contact the inner wall of the hexagonal socket. The multiple drive seats 24 are connected through the connecting seat 251, which improves the stability of the drive seat 24. At the same time, the connecting seat 25 1 can also contact the inner wall of the hexagonal hole, increasing the overall contact area. The increase in contact area helps to evenly disperse the torque, reduce local stress concentration, ensure that the torque transmission is more stable and reliable, improve the stability during operation, and also improve the stability of the hexagonal driving part 221. The connecting seat 251 can also evenly disperse the pressure during torque transmission, so that the driving force is more evenly distributed on the inner wall of the hexagonal hole. When the torque screwdriver applies a large torque, it is not easy to cause the tool to slip due to insufficient local contact force, thereby ensuring reliable torque transmission.

[0058] like Figure 1 、 Figures 11 to 13 As shown, it also includes a support and adjustment part 1 for supporting the measuring component 2, and the support and adjustment part 1 includes two symmetrically arranged rails 11, a slide 12 slidingly connected to the two rails 11, a first positioning bolt 13 screwed in the slide 12 and positioning the slide 12, a clamping and fixing part 14 fixed to the lower end of the rail 11 for positioning and fixing the rail 11, a first movable groove 15 opened inside the slide 12, a first guide groove 17 and a second guide groove 18 opened inside the slide 12 and connected to the first movable groove 15, an angle adjustment part 16 slidingly connected to the first movable groove 15, and a positioning screw hole 19 opened on one side of the slide 12 for positioning the angle adjustment part 16, and the shell 211 is connected to the angle adjustment part 16.

[0059] The angle adjustment portion 16 includes a hollow slider 161 slidingly connected in the first movable groove 15, and a guide extension portion 162 integrally formed on both sides of the hollow slider 161 and movably connected to the first guide groove 17 and the second guide groove 18 respectively. The shell 211 is rotatably connected to the inner wall of the hollow slider 161, and the hollow slider 161 is rotatably connected to a first gear 165 fixed to one side of the shell 211. A fourth movable groove is opened inside the hollow slider 161, and a pressure seat 164 is movably connected in the fourth movable groove. Two guide rods 166 are movably inserted in the pressure seat 164, and both ends of the guide rods 166 are fixed to the inner wall of the fourth movable groove. A first spring 167 is sleeved on the outside of the guide rod 166, and the two ends of the first spring 167 are respectively connected to the fourth movable groove and the pressure seat 164. The lower end of the pressure seat 164 is integrally formed with a tooth key 168 for limiting the first gear 165.

[0060] One of the guide extensions 162 passes through the second guide slot 18 and extends outward. A second positioning bolt 163 is screwed into the outward-extending guide extension 162 , and the second positioning bolt 163 passes through the guide extension 162 and is screwed into the positioning screw hole 19 .

[0061] By adopting the above technical solution, after the second positioning bolt 163 is screwed out from the positioning screw hole 19, the hollow slider 161 can be slid in the first movable groove 15 in the slide 12, so as to adjust the angle and position of the measuring component 2. After the first positioning bolt 13 is screwed out from the slide 12, the slide 12 can slide on the two rails 11, so as to adjust the axial position of the measuring component 2, and the pressure seat 164 is lifted upward to squeeze the first spring 167. At this time, the tooth key 168 at the lower end of the pressure seat 164 is separated from the first gear 165, and the limit of the first gear 165 is cancelled. 165 and the housing 211 connected to the first gear 165 can rotate to achieve fine adjustment of the angle of the measuring component 2. By coarsely and finely adjusting the angle of the measuring component 2, the bolt can be better matched and the screw-in angle of the bolt can be adjusted. The support adjustment portion 1 not only helps the measuring component 2 maintain the stability of the measuring component 2 when screwing the screw into the bone, but also makes the transmission process of torque and angular velocity more consistent and controllable, reduces external interference to the tool during operation, and ensures that the torque and angular velocity remain stable throughout the screw-in process, which has a positive impact on the measurement accuracy of angular momentum. Precise control of the angle can also avoid measurement errors caused by changes in angular velocity.

[0062] The workflow of the technical solution provided by the present invention is as follows:

[0063] Place the bolt at the lower end of the torque measuring member 218, insert the hexagonal driving portion 221 into the inner six holes of the bolt, and after the pressure plate 222 contacts the bottom wall of the inner six holes, the pressure plate 222 pushes the lower end of the connecting block 223 into the hexagonal driving portion 221. The connecting block 223 moves along the column 224 inside the hexagonal driving portion 221 and in the direction of the second spring 225. At the same time, the inclined block 227 also moves upward with the connecting block 223. When the inclined block 227 moves upward, it cooperates with the inclined surface 228. The inclined block 227 passes The inclined surface 228 applies a thrust to the movable block 229, pushing the movable block 229 to move in the second movable groove 23, thereby driving the driving seat 24 to move. Multiple driving seats 24 move toward the inner wall of the six holes in the bolt, and one side of multiple driving seats 24 is tightly attached to the inner wall of the six holes in the bolt. When multiple driving seats 24 move toward the inner wall of the hexagonal socket of the bolt, they drive the connecting seat 251 to move toward the inner wall of the hexagonal socket, and one side of the connecting seat 251 also contacts the inner wall of the hexagonal socket, controlling the electric push rod 213 to work and extend.

[0064] The electric push rod 213 extends and drives the adjustment seat 214 to move downward inside the housing 211, applying the force required to insert the bolt to the bolt. The force applied by the electric push rod 213 to the adjustment seat 214 and the bolt is detected by the pressure sensor 215. When the pressure exceeds or is less than the preset pressure value, the electric push rod 213 is adjusted to maintain the stability of the force applied when the screw is inserted. The motor 261 drives the second gear 262 to rotate, and the rotation of the second gear 262 drives the third gear 263 to rotate. The rotation of the third gear 263 drives the turntable 264 and the torque measuring part 218 fixed to the turntable 264 to rotate. By rotating the torque measuring part 218 and inserting the bolt into the bone When the screw is inserted into the bone, the torque measuring element 218 detects the torque of the screw. When the torque is greater than or less than the preset torque value, the motor 261 can adjust the output torque and calculate the torque and time of the entire screw insertion process according to the formula ΔL=τ×t, thereby obtaining the angular momentum value of the screw insertion. If the torque remains constant but the angular momentum is large, it may also indicate that the screw rotation has continued for a long time. This may be because the screw has penetrated deeper into the bone or has been screwed in a long distance. The larger angular momentum may mean that the screw has been in closer contact with the bone, resulting in a better tightening effect. The smaller angular momentum may also mean that the screw has been screwed in for a short time and has not yet fully entered the bone. This may indicate that the screw has not reached the expected depth or that the length of the screw does not match the target bone segment. The smaller angular momentum may indicate that the screw is not tightened enough, resulting in a poor fixation effect.

[0065] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0066] The above is only a preferred embodiment 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 within the scope of protection of the present invention.

Claims

1. A screw insertion measurement device, comprising a measurement assembly, characterized in that: The measuring assembly includes a measuring portion, and the measuring portion includes a housing, a top plate clamped on the upper end of the housing, an electric push rod fixed to the upper end of the housing, a pressure sensor fixed to the telescopic end of the electric push rod, an adjustment seat fixed to the outside of the pressure sensor, a torque measuring member connected to the lower end of the adjustment seat for measuring the torque when the screw is inserted, and a drive assembly connected to the inside of the adjustment seat and for driving the torque measuring member to rotate; The pressure sensor is used to detect the pressure value applied by the electric push rod to the screw. The torque measuring component measures and times the torque when the screw is inserted and determines the torque value according to a preset value. The torque measuring component is connected to the drive assembly and is used to adjust the power output of the drive assembly according to the torque value. The driving assembly includes a motor fixedly connected to the interior of the adjustment base, a second gear rotatably connected to the interior of the adjustment base and fixedly connected to the output shaft of the motor, a third gear rotatably connected to the interior of the adjustment base and meshing with the second gear, and a turntable rotatably connected to the lower end of the adjustment base, wherein the upper end of the turntable is fixedly connected to the third gear, and the torque measuring member is fixedly connected to the lower end of the turntable; The lower end of the torque measuring member is fixedly connected to a driving head, and the lower end of the driving head is fixedly connected to a stabilizing measurement and wave reduction positioning part, and the stabilizing measurement and wave reduction positioning part comprises a hexagonal driving part and a column fixedly connected to the lower end of the driving head, a connecting block movably inserted into the hexagonal driving part and movably sleeved on the outside of the column, a pressing plate fixedly connected to the lower end of the connecting block, a second spring sleeved on the outside of the column, a limiting ring fixed to the outside of the connecting block and a plurality of inclined blocks, a plurality of second movable grooves provided in the hexagonal driving part, a plurality of movable blocks slidably connected to the plurality of second movable grooves, an inclined surface provided on one side of the plurality of movable blocks and respectively matched with the plurality of inclined blocks, and a plurality of driving seats respectively fixed to the other side of the plurality of movable blocks, and two ends of the second spring are respectively connected to the lower end of the driving head and the upper end of the connecting block; Side plates are fixed on both sides of the movable block, and a first guide column is movably inserted inside the side plate, both ends of the first guide column are fixed on the inner wall of the second movable groove, and a third spring is also sleeved on the outside of the first guide column, and both ends of the third spring are respectively connected to the inner wall of the second movable groove and one side of the side plate.

2. The screw insertion measuring device according to claim 1, characterized in that: A slide rail is fixedly connected to the inner wall of the shell, and a slide bar slidably connected to the slide rail is fixedly connected to the outer surface of the adjustment seat.

3. The screw insertion measurement device according to claim 1, characterized in that Two third movable grooves are symmetrically provided inside the driving seat, and the multiple driving seats are connected by multiple stabilizing connecting parts, and the stabilizing connecting parts include a connecting seat located between two adjacent driving seats, two plug-in blocks symmetrically fixed on both sides of the connecting seat, a second guide column movably inserted into the plug-in blocks, and a fourth spring sleeved on the outside of the second guide column. The two plug-in blocks are respectively inserted into the third movable grooves in the two adjacent driving seats, and both ends of the second guide column are fixed on the inner wall of the third movable groove. The two ends of the fourth spring are respectively connected to the third movable groove and the plug-in blocks.

4. The screw insertion measurement device according to claim 3, characterized in that: The lower end of the driving head is also integrally formed with a resistance-increasing flange.

5. The screw insertion measurement device according to claim 4, characterized in that: It also includes a support adjustment part for supporting the measuring component, and the support adjustment part includes two symmetrically arranged rails, a slide slidingly connected to the two rails, a first positioning bolt screwed in the slide and positioning the slide, a clamping fixing part fixed at the lower end of the rail for positioning the rail, a first movable groove opened inside the slide, a first guide groove and a second guide groove opened inside the slide and connected to the first movable groove, an angle adjustment part slidingly connected to the first movable groove, and a positioning screw hole opened on one side of the slide for positioning the angle adjustment part, and the shell is connected to the angle adjustment part.

6. The screw insertion measurement device according to claim 5, characterized in that: The cam is connected to the first guide slot and the second guide slot respectively. The cam is connected to the first gear and the second gear is connected to the first gear. The cam is connected to the first gear and the second gear is connected to the first gear.

7. The screw insertion measurement device according to claim 6, characterized in that: One of the guide extensions passes through the second guide slot and extends outwards, a second positioning bolt is screwed inside the outwardly extending guide extension, and the second positioning bolt passes through the guide extension and is screwed in the positioning screw hole.

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