Implanted guide rotating tooth cutting system
By designing an implantable guided rotary tooth cutting system, the problems of time-consuming, laborious, low safety and limited accuracy of laminectomy during spinal endoscopic surgery are solved, and automated and precise laminectomy is achieved, improving the efficiency and safety of the surgery.
Patent Information
- Application Number
- CN202510211683.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-05-09
AI Technical Summary
In minimally invasive spinal endoscopy surgery, handheld ring saws are used for laminectomy, and the operation is time-consuming and laborious, low safety and limited accuracy.
An implantable guided rotary tooth cutting system is designed, including a mounting frame, cutting assembly, adjustment assembly, pull assembly, rotating device, handlebar and guide needle. Through the use of these components, an automated and precise laminectomy operation is achieved.
The system reduces the surgeon's repeated twisting of his wrist during surgery, and can complete the resection task alone, improves the safety and accuracy of the operation, and expands the processing range and field of view under the microscope.
Smart Images
Figure CN119949944A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of medical instruments, and in particular to an implantation-guided rotary tooth cutting system. Background Art
[0002] Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items used directly or indirectly on the human body, including the required computer software.
[0003] Currently, different medical devices are used in different departments in hospitals, and handheld circular saws are used to assist in spinal endoscopic surgery in orthopedics.
[0004] Spinal endoscopy has been widely used in minimally invasive spinal surgery. Laminectomy is a common surgical procedure used to release nerve compression or provide operating space. However, the existing technology mainly uses a handheld ring saw for resection, which has the following shortcomings: Time-consuming and labor-intensive: In single-channel endoscopic surgery, the doctor needs to manually twist his wrist and use a ring saw to gradually cut the vertebral plate. The operation is cumbersome and time-consuming. In UBE surgery, the surgeon often needs to hold the bone knife and use a hammer to perform the resection with the help of an assistant. The surgeon often needs to rely on the operator's hand feel to perform the operation carefully. Safety issues: During the cutting process, an assistant is required to help stabilize the cutting to prevent the ring saw from going too deep or deviating into the dura mater sac, which increases the operation risk and collaboration complexity. Limited accuracy: Due to the lack of precise depth control and flexibility in traditional tool design, the resection process is prone to errors, affecting the surgical effect.
[0005] Therefore, it is necessary to provide an implant-guided rotary tooth cutting system to solve the above-mentioned technical problems. Summary of the invention
[0006] The present invention provides an implantation-guided rotary tooth cutting system, which solves the problem that the use of a handheld ring saw during laminectomy in spinal endoscopic minimally invasive surgery causes the operation of medical personnel to be time-consuming and labor-intensive, with low safety and limited accuracy.
[0007] In order to solve the above technical problems, the present invention provides an implant guide rotary tooth cutting system, comprising: A mounting frame, wherein a U-shaped groove is provided inside the mounting frame; A cutting assembly, the cutting assembly is arranged inside the U-shaped groove, the cutting assembly comprises a fixed rod, both sides of the surface of the fixed rod are sleeved with a rotating frame, and one end of the two rotating frames is connected to a serrated knife; An adjustment component, the adjustment component is arranged inside the mounting frame; A pulling assembly, wherein the number of the pulling assemblies is two, and the two pulling assemblies are respectively arranged between the two rotating frames and the adjusting assembly; A rotating device, the rotating device is arranged at one end of the mounting frame; A handle, the handle being arranged at one end of the rotating device; A guide needle is connected to the center position of one end of the mounting frame.
[0008] Preferably, the pulling assembly comprises a pulling rod, and both ends of the pulling rod are connected to a rotating seat.
[0009] Preferably, a moving component is disposed on the surface of the rotating frame, and the moving component comprises a moving groove, and a moving block is slidably connected inside the moving groove.
[0010] Preferably, the adjustment assembly comprises a threaded rod, and the bottom end of the threaded rod is rotatably connected to an adjustment block via a rotating shaft.
[0011] Preferably, a threaded sleeve is threadedly connected to the surface of the threaded rod.
[0012] Preferably, a stopper is connected to the top end of the threaded rod.
[0013] Preferably, the rotating device includes a mounting box, a motor is installed inside the mounting box, one end of the motor output shaft is fixedly connected to a rotating block via a coupling, the bottom of the rotating block is symmetrically connected to circular connecting rods, and one end of two circular connecting rods are connected to one end of the mounting frame.
[0014] Preferably, a picking assembly is provided on the surface of the handle, and the picking assembly includes a handle, and both ends of the handle are connected with mounting rings, and the two mounting rings are sleeved on the surface of the handle.
[0015] Preferably, rubber rings are bonded to the inner walls of the two mounting rings.
[0016] Preferably, a disassembly assembly is provided between the rotating frame and the serrated knife, and the disassembly assembly includes a rectangular connecting plate, both ends of the rectangular connecting plate are connected to limit blocks, and a disassembly bolt is provided between the two limit blocks and the serrated knife.
[0017] Compared with the related art, the implant guide rotary tooth cutting system provided by the present invention has the following beneficial effects: The present invention provides an implantation guide rotary tooth cutting system, in which a fixing rod with two rotating frames, two serrated knives, an adjustment assembly, a pulling assembly, a rotating device, a handle and a guide rod are arranged inside a mounting frame with a U-shaped groove, and are used in coordination with each other, thereby reducing the surgeon's repeated twisting of the wrist during the operation, and the operation can be completed independently without the help of an assistant. The processing range under the microscope is larger, the field of view is wider, the bone surface can be penetrated, and it can be safer after power cutting. First, during the operation, the middle probe is first penetrated into the bone surface of the vertebral plate, so that we can clearly see that the vicinity of the implanted vertebral plate bone is a safe operating range, and then, the electric rotary tooth is started to achieve a better field of view during the bone cutting operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A schematic structural diagram of a first embodiment of an implant guide rotary tooth cutting system provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the cutting system shown; Figure 4 for Figure 3 An enlarged schematic diagram of part B is shown; Figure 5 for Figure 3 An enlarged schematic diagram of part C is shown; Figure 6 for Figure 1 An isometric structural diagram of the cutting system shown; Figure 7 A schematic structural diagram of a second embodiment of an implant guide rotary tooth cutting system provided by the present invention; Figure 8 A schematic structural diagram of a third embodiment of an implant guide rotary tooth cutting system provided by the present invention; Fig. 9 for Figure 8 An enlarged schematic diagram of part D is shown.
[0019] Numbers in the figure: 1, mounting frame; 2, U-shaped groove; 3. Cutting assembly; 31. Fixed rod; 32. Rotating frame; 33. Sawtooth knife; 4. Pulling assembly; 41. Pulling rod; 42. Rotating seat; 5. Moving assembly; 51. Moving slot; 52. Moving block; 6. adjustment assembly; 61. threaded rod; 62. adjustment block; 7. Threaded sleeve; 8. Stopper; 9. Rotating device; 91. Mounting box; 92. Motor; 93. Rotating block; 94. Round connecting rod; 10. Handlebar; 11. Guide needle; 12. Pick-up assembly; 121. Grip; 122. Mounting ring; 123. Rubber ring; 13. Disassemble the assembly; 131. Rectangular connecting plate; 132. Limit block; 133. Disassemble the bolts. DETAILED DESCRIPTION
[0020] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.
[0021] First embodiment Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in, Figure 1 A schematic structural diagram of a first embodiment of an implant guide rotary tooth cutting system provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the cutting system shown; Figure 4 for Figure 3 An enlarged schematic diagram of part B is shown; Figure 5 for Figure 3 An enlarged schematic diagram of part C is shown; Figure 6 for Figure 1 An isometric structural diagram of a cutting system is shown. An implant guide rotary tooth cutting system comprises: A mounting frame 1, wherein a U-shaped groove 2 is provided inside the mounting frame 1; A cutting assembly 3, the cutting assembly 3 is arranged inside the U-shaped groove 2, the cutting assembly 3 comprises a fixing rod 31, both sides of the surface of the fixing rod 31 are sleeved with a rotating frame 32, and one end of the two rotating frames 32 are connected to a serrated knife 33; An adjustment component 6, wherein the adjustment component 6 is arranged inside the mounting frame 1; A pulling assembly 4, wherein the number of the pulling assemblies 4 is two, and the two pulling assemblies 4 are respectively arranged between the two rotating frames 32 and the adjusting assembly 6; A rotating device 9, wherein the rotating device 9 is arranged at one end of the mounting frame 1; A handle 10, wherein the handle 10 is disposed at one end of the rotating device 9; A guide needle 11 is connected to the center position of one end of the mounting frame 1 .
[0022] The pulling assembly 4 includes a pulling rod 41 , and both ends of the pulling rod 41 are connected to a rotating seat 42 .
[0023] A moving assembly 5 is disposed on the surface of the rotating frame 32 . The moving assembly 5 includes a moving groove 51 . A moving block 52 is slidably connected inside the moving groove 51 .
[0024] The use of the U-shaped groove 2 facilitates the installation of the fixed rod 31 and the operation of the serrated knife 33. The connection between the rotating frame 32 and the fixed rod 31 is connected by a bearing. The two rotating frames 32 are rotatably installed on the surface of the fixed rod 31 in a left-right manner. The two rotating frames 32 facilitate the opening and closing operation of the serrated knife 33.
[0025] The adjusting assembly 6 comprises a threaded rod 61 , and the bottom end of the threaded rod 61 is rotatably connected to an adjusting block 62 via a rotating shaft.
[0026] A threaded through hole compatible with the threaded rod 61 is opened at the central position inside the mounting frame 1, and the adjusting block 62 is arranged inside the U-shaped groove 2 for movement. The two rotating seats 42 are respectively connected to the bottom of the adjusting block 62 and the surface of the moving block 52. The moving groove 51 is opened on the surface of the rotating frame 32. The use of the moving groove 51 and the moving block 52 facilitates the pulling operation of the serrated knife 33 in cooperation with the pulling rod 41 with the rotating seat 42.
[0027] The size of the serrated knife 33 driven by the rotating frame 32 can control the treatment range of the patient.
[0028] The surface of the threaded rod 61 is threadedly connected with a threaded sleeve 7 .
[0029] The use of the threaded sleeve 7 facilitates the threaded rod 61 to rotate inside the mounting frame 1 , and the use of the stopper 8 can prevent the threaded rod 61 from separating inside the mounting frame 1 .
[0030] A stopper 8 is connected to the top end of the threaded rod 61 .
[0031] The rotating device 9 includes a mounting box 91, a motor 92 is installed inside the mounting box 91, one end of the output shaft of the motor 92 is fixedly connected to a rotating block 93 through a coupling, and the bottom of the rotating block 93 is symmetrically connected to circular connecting rods 94, and one end of the two circular connecting rods 94 are connected to one end of the mounting frame 1.
[0032] The motor 92 is a servo motor, and a controller and a battery are installed inside the handle 10 to power the motor 92 .
[0033] Usage scenario: By inserting into the bone surface of the vertebral lamina, it can be determined that the area near the vertebral lamina is a safe operating range. Then, the electric rotating teeth are started to cut the bone. The depth of the insertion into the bone determines the depth of the ring saw.
[0034] The working principle of an implant guide rotary tooth cutting system provided by the present invention is as follows: When the entire device is used, the entire device is first placed at the treatment position, and the guide rod 11 at the bottom end of the mounting frame 1 contacts the position of the bone, and then the threaded rod 61 inside the mounting frame 1 is driven to move upward by rotating the threaded sleeve 7. When the threaded rod 61 moves upward inside the mounting frame 1, the adjusting block 62 is pulled to move upward inside the U-shaped groove 2. When the adjusting block 62 moves upward inside the U-shaped groove 2, the pulling rod 41 is pulled upward by the rotating seat 42 at the bottom of the adjusting block 62. When the pulling rod 41 moves upward, it moves through another rotating seat 42. When the other rotating seat 42 moves through the pulling rod 41, the pulling rod 41 is pulled upward. The movable block 52 moves inside the movable groove 51. When the movable block 52 moves inside the movable groove 51, it drives the rotating frame 32 to rotate upward on the surface of the fixed rod 31. When the rotating frame 32 rotates upward on the surface of the fixed rod 31, it pulls the serrated knife 33 to open. When the serrated knife 33 is opened and contacts with the bone, the motor 92 is started to drive the rotating block 92 to rotate. When the rotating block 92 rotates, it drives the mounting frame 1 to rotate through the two circular connecting rods 94 at the bottom. When the two circular connecting rods 94 drive the mounting frame 1 to rotate, they drive the serrated knives 33 on the left and right sides of the mounting frame 1 to rotate, thereby performing a treatment operation on the bone.
[0035] Compared with the related art, the implant guide rotary tooth cutting system provided by the present invention has the following beneficial effects: The present invention provides an implantation guided rotary tooth cutting system, wherein a fixing rod 31 with two rotating frames 32, two serrated knives 33, an adjustment component 6, a pulling component 4, a rotating device 9, a handle 10 and a guide rod 11 are arranged inside a mounting frame 1 with a U-shaped groove 2, and are used in coordination with each other, thereby reducing the surgeon's repeated twisting of the wrist during the operation, and the operation can be completed independently without the help of an assistant. The processing range under the microscope is larger, the field of view is wider, the bone surface can be penetrated, and it can be safer after power cutting. First, during the operation, the middle probe is first penetrated into the bone surface of the vertebral plate, so that we can clearly see that the vicinity of the implanted vertebral plate bone is a safe operating range, and then, the electric rotary tooth is started to have a better field of view during the bone cutting operation.
[0036] Second embodiment Please refer to Figure 7Based on the implant guide rotary tooth cutting system provided in the first embodiment of the present application, the second embodiment of the present application proposes another implant guide rotary tooth cutting system. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.
[0037] Specifically, the difference of the implant guide rotary tooth cutting system provided in the second embodiment of the present application is that, in an implant guide rotary tooth cutting system, a picking component 12 is provided on the surface of the handle 10, and the picking component 12 includes a handle 121, and both ends of the handle 121 are connected to mounting rings 122, and the two mounting rings 122 are both mounted on the surface of the handle 10.
[0038] The inner walls of the two mounting rings 122 are both bonded with rubber rings 123 .
[0039] The use of the rubber ring 123 facilitates the installation ring 122 to be sleeved on the surface of the handle 10 to play a role of squeezing, fixing and increasing friction. The shape of the handle 121 is U-shaped, which is convenient for medical staff to take.
[0040] The working principle of an implant guide rotary tooth cutting system provided by the present invention is as follows: During use, when medical personnel use the entire device to perform treatment operations, the medical personnel hold the entire handle 121 to operate the entire device.
[0041] Compared with the related art, the implant guide rotary tooth cutting system provided by the present invention has the following beneficial effects: The present invention provides an implant guide rotary tooth cutting system. A handle 121 and two mounting rings 122 with rubber rings 123 are arranged on the surface of a handle 10, so that medical staff can manually take the entire device when using the entire device.
[0042] Third embodiment Please refer to Figure 8 and Fig. 9 Based on the implant guide rotary tooth cutting system provided in the first embodiment of the present application, the third embodiment of the present application proposes another implant guide rotary tooth cutting system. The third embodiment is only a preferred embodiment of the first embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first embodiment.
[0043] Specifically, the difference of an implant guide rotary tooth cutting system provided in the third embodiment of the present application is that, in an implant guide rotary tooth cutting system, a disassembly assembly 13 is arranged between the rotating frame 32 and the serrated knife 33, and the disassembly assembly 13 includes a rectangular connecting plate 131, and both ends of the rectangular connecting plate 131 are connected to a limiting block 132, and a disassembly bolt 133 is arranged between the two limiting blocks 132 and the serrated knife 33.
[0044] The rectangular connecting plate 131 is connected to one end of the rotating frame 32 , and a threaded hole matched with the disassembly bolt 133 is opened between the limiting block 132 and the serrated knife 33 .
[0045] The working principle of an implant guide rotary tooth cutting system provided by the present invention is as follows: When in use, when the serrated knife 33 at one end of the rotating frame 32 is disassembled, replaced and cleaned, first remove the disassembly bolt 133 between the limit block 132 and the serrated knife 33. After the disassembly bolt 133 is removed, the serrated knife 33 can be separated from the rectangular connecting plate 131 with two limit blocks 132 by pulling.
[0046] Compared with the related art, the implant guide rotary tooth cutting system provided by the present invention has the following beneficial effects: The present invention provides an implant guide rotary tooth cutting system, in which a rectangular connecting plate 131 with two limit blocks 132 and two disassembly bolts 133 are arranged between a rotating frame 32 and a serrated knife 33 for cooperation and convenient disassembly, cleaning and replacement of the serrated knife 33 and the rotating frame 32.
[0047] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. An implant guide rotary tooth cutting system, characterized in that: include: A mounting frame, wherein a U-shaped groove is provided inside the mounting frame; A cutting assembly, the cutting assembly is arranged inside the U-shaped groove, the cutting assembly comprises a fixed rod, both sides of the surface of the fixed rod are sleeved with a rotating frame, and one end of the two rotating frames is connected to a serrated knife; An adjustment component, the adjustment component is arranged inside the mounting frame; A pulling assembly, wherein the number of the pulling assemblies is two, and the two pulling assemblies are respectively arranged between the two rotating frames and the adjusting assembly; A rotating device, the rotating device is arranged at one end of the mounting frame; A handle, the handle being arranged at one end of the rotating device; A guide needle is connected to the center position of one end of the mounting frame.
2. The implant guide rotary tooth cutting system according to claim 1, characterized in that: The pulling assembly comprises a pulling rod, and both ends of the pulling rod are connected with a rotating seat.
3. The implant guide rotary tooth cutting system according to claim 1, characterized in that: A moving assembly is disposed on the surface of the rotating frame. The moving assembly comprises a moving groove. A moving block is slidably connected inside the moving groove.
4. The implant guide rotary tooth cutting system according to claim 1, characterized in that: The adjusting assembly comprises a threaded rod, and the bottom end of the threaded rod is rotatably connected to an adjusting block via a rotating shaft.
5. The implant guide rotary tooth cutting system according to claim 4, characterized in that: The surface of the threaded rod is threadedly connected with a threaded sleeve.
6. The implant guide rotary tooth cutting system according to claim 4, characterized in that: The top end of the threaded rod is connected with a stopper.
7. The implant guide rotary tooth cutting system according to claim 1, characterized in that: The rotating device includes a mounting box, a motor is installed inside the mounting box, one end of the motor output shaft is fixedly connected to a rotating block through a coupling, the bottom of the rotating block is symmetrically connected to circular connecting rods, and one end of two circular connecting rods are connected to one end of the mounting frame.
8. The implant guide rotary tooth cutting system according to claim 1, characterized in that: The surface of the handle is provided with a picking assembly, which includes a grip, both ends of the grip are connected with mounting rings, and the two mounting rings are sleeved on the surface of the handle.
9. The implant guide rotary tooth cutting system according to claim 8, characterized in that: The inner walls of the two mounting rings are both bonded with rubber rings.
10. The implant guide rotary tooth cutting system according to claim 1, characterized in that: A disassembly assembly is provided between the rotating frame and the serrated knife. The disassembly assembly comprises a rectangular connecting plate. Both ends of the rectangular connecting plate are connected to limit blocks. A disassembly bolt is provided between the two limit blocks and the serrated knife.