Improved auxiliary spine minimally invasive surgery puncture positioning device

Abstract

The invention relates to the technical field of medical instruments, in particular to an improved puncture positioning device for assisting minimally invasive spine surgery. According to the improved auxiliary spine minimally invasive surgery puncture positioning device, the height and the angle of the puncture needle can be adjusted conveniently, and therefore puncture can be more accurately conducted. An improved puncture positioning device assisting in minimally invasive spine surgery comprises a base, a sliding limiting rod, a compression spring and the like. The two bases are each fixedly connected with two sliding limiting rods, and the two bases are each fixedly connected with two compression springs. A medical worker moves a sliding supporting block upwards, the medical worker controls a sliding block to move downwards to a proper height after a patient enters the position below the device, then the medical worker rotates a rotating disc, the rotating disc rotates to drive a positioning pipe to be aligned to the position, needing an operation, of the patient, a fixing screw is tightened, and then an L-shaped pressing rod is rotated to rotate with a front rotating shaft as the center. The height and the angle of the positioning pipe can be adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to an improved puncture positioning device for assisting minimally invasive spinal surgery. Background Art

[0002] Minimally invasive spinal surgery refers to the use of tiny incisions or puncture channels, the use of special instruments and devices, reaching the lesion from the normal anatomical structure, and the use of various miniature manual or electric instruments and equipment to complete the entire surgical process under visual conditions. Compared with traditional surgical methods, this form of surgery can achieve smaller incisions, less tissue trauma, and less bleeding than traditional or standard spinal surgery.

[0003] At present, puncture of patients is generally assisted by a spinal minimally invasive surgery locator. However, the existing spinal minimally invasive surgery locator is inconvenient to use and is in direct contact with the surface of human skin. The human body is not a flat surface, and the existing puncture technology is not convenient for adjusting the height and angle of the puncture needle. In addition, there are wrinkles on the surface of human skin, which makes it inconvenient for the puncture needle to puncture, resulting in inaccurate puncture position and unreliable puncture angle, and the desired effect cannot be achieved. When the puncture effect is not ideal, the puncture needs to be repeated, which wastes operation time. Summary of the invention

[0004] In view of the shortcomings of existing spinal minimally invasive surgery positioners that are not convenient for adjusting the height and angle of the puncture needle and are not accurate enough, the present invention provides an improved auxiliary spinal minimally invasive surgery puncture positioning device that is convenient for adjusting the height and angle of the puncture needle, thereby enabling more accurate puncture.

[0005] The technical implementation scheme of the present invention is: an improved auxiliary spinal minimally invasive surgery puncture positioning device, including a base, a sliding curved plate, a sliding limit rod, a compression spring, a position adjustment mechanism and an angle adjustment mechanism, the top of the base is fixedly connected to a sliding curved plate, the base is fixedly connected to two sliding limit rods, the base is fixedly connected to two compression springs, and the two compression springs are respectively sleeved on the two sliding limit rods, the position adjustment mechanism is arranged on the sliding limit rod, and the angle adjustment mechanism is arranged on the position adjustment mechanism.

[0006] As a preferred technical solution of the present invention, the position adjustment mechanism includes a slotted plate, a sliding support block, a support seat, a rotating disk, a fixing screw, a fixing block, a C-shaped extrusion rod and an extrusion spring. The slotted plate is fixedly connected to the base, and a plurality of grooves are opened on the slotted plate. A sliding support block is slidably connected between the two sliding limit rods, and the sliding support block is slidably connected to the slotted plate, the sliding support block is fixedly connected to the compression spring, the upper portion of the sliding support block is fixedly connected to the support seat, the upper portion of the sliding support block is penetrated by a rotating disk, the rotating disk passes through the support seat, the top of the sliding support block is threadedly connected with a fixing screw, the fixing block is fixedly connected to the sliding support block, the C-shaped extrusion rod is slidably connected to the fixing block, the upper end of the C-shaped extrusion rod is slidably connected to the sliding support block, an extrusion spring is fixedly connected between the sliding support block and the C-shaped extrusion rod, and the extrusion spring is sleeved on the fixing block.

[0007] As a preferred technical solution of the present invention, the angle adjustment mechanism includes a support plate, a front rotating shaft, a rear rotating shaft, a friction extrusion disk, a positioning frame, a positioning tube and an L-shaped pressure rod, one end of the rotating disk is fixedly connected to the support plate, the front rotating shaft and the rear rotating shaft are rotatably connected to the support plate, the end of the front rotating shaft close to the rear rotating shaft is fixedly connected to the friction extrusion disk, the end of the rear rotating shaft close to the front rotating shaft is fixedly connected to the positioning frame, the positioning frame and the friction extrusion disk are fixedly connected, the friction extrusion disk is in contact with the support plate, two positioning tubes are fixedly connected to the positioning frame, and the two positioning tubes are symmetrically arranged, the L-shaped pressure rod is rotatably connected to the end of the front rotating shaft away from the friction extrusion disk, and the L-shaped pressure rod is in contact with the support plate.

[0008] As a preferred technical solution of the present invention, it also includes a skin stretching mechanism, which is arranged on a support plate, and the skin stretching mechanism includes a connecting hole block, a support rod, a sliding hole block, a sliding extrusion rod, an extrusion spring and a skin foot support. Four support rods are slidably connected to the support plate, a connecting hole block is fixedly connected between every two of the support rods, and the two connecting hole blocks are symmetrically arranged. The lower ends of the two support rods are fixedly connected to the sliding hole blocks, and the sliding extrusion rod is slidably connected to the sliding hole blocks. The sliding extrusion rod is slidably connected to the sliding hole blocks, and the sliding extrusion rod is slidably connected to the connecting hole block. A squeezing spring is fixedly connected between the sliding hole block and the sliding extrusion rod, and the skin foot support is fixedly connected to the bottom end of the sliding extrusion rod.

[0009] As a preferred technical solution of the present invention, it also includes an adaptation mechanism, which is arranged on the positioning frame. The adaptation mechanism includes a clamping block, a spring connecting block and a clamping spring. Two dark grooves are opened inside the positioning frame, and the two dark grooves are symmetrically arranged. Two spring connecting blocks are slidably connected inside the dark groove of the positioning frame, wherein a clamping block is fixedly connected to two spring connecting blocks, and two clamping blocks are fixedly connected to the other two spring connecting blocks. Three of the clamping blocks form a group, and every three of the clamping blocks are staggered. A clamping spring is connected between the spring connecting block and the dark groove inside the positioning frame.

[0010] As a preferred technical solution of the present invention, it also includes an end positioning mechanism, which is arranged on a positioning frame. The end positioning mechanism includes a connecting rod, a rotating block and a torsion spring. Two connecting rods are fixedly connected to the bottom of the positioning frame, and the two connecting rods are symmetrically arranged. The bottom of the connecting rod is rotatably connected to the rotating block, and a torsion spring is connected between the connecting rod and the rotating block.

[0011] Compared with the prior art, the present invention has the following advantages: 1. The medical staff clamps the sliding curved plate on the steel pipe of the hospital bed, and pushes the sliding curved plate to move along the steel pipe of the hospital bed. The movement of the sliding curved plate will drive the base, slotted plate, sliding support block, support seat and rotating disk to move along the front and rear directions of the bed, so that the puncture position can be adjusted forward and backward. The medical staff moves the rotating disk horizontally, and the movement of the rotating disk will drive the support plate to move horizontally, so that the puncture position can be adjusted left and right, which is convenient for doctors to puncture patients.

[0012] 2. The medical staff moves the sliding support block upward. The compression spring between the base and the sliding support block makes the medical staff more labor-saving. After the patient enters under the equipment, the medical staff controls the slider to move downward to the appropriate height. Then the medical staff rotates the rotating disk. The rotation of the rotating disk drives the positioning tube to align with the position where the patient needs surgery. After adjustment, tighten the fixing screws, and then rotate the L-shaped pressure rod to rotate with the previous rotating axis as the center. In this way, the height and angle of the positioning tube can be adjusted, thereby controlling the positioning tube to more accurately align with the position where the patient needs surgery.

[0013] 3. When the support plate slides downward, it will drive the skin foot supports to move downward, and the four skin foot supports will contact the patient's back. The skin sliding opening block will push the sliding extrusion rod and the skin foot supports outward through the extrusion spring, so that the skin foot supports will open the skin on the patient's back, thereby tightening the skin on the patient's back where puncture is required, reducing wrinkles, and facilitating better positioning of the puncture needle, thereby facilitating more accurate puncture of the patient.

[0014] 4. During the operation, the puncture needle squeezes the clamping block and the spring connecting block to slide to both sides of the dark groove. The pressure of the clamping spring makes the clamping block and the puncture needle fit tightly, thereby adapting to different types of puncture needles, so that there is no need to frequently change and adjust to waste operation time.

[0015] 5. When the L-shaped pressure rod adjusts the angle, it will drive the positioning tube to rotate. When the positioning tube is aligned with the part where surgery is required, there is still a certain distance from the surgical part. The rotating block assists the positioning tube to locate the surgical part more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the second three-dimensional structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

[0019] Figure 4 It is a partial three-dimensional structural schematic diagram of the position adjustment mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of a first partial cross-sectional three-dimensional structure of the angle adjustment mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of a second partially cutaway three-dimensional structure of the angle adjustment mechanism of the present invention.

[0022] Figure 7 It is a three-dimensional structural schematic diagram of the angle adjustment mechanism and the skin stretching mechanism of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the skin expansion mechanism of the present invention.

[0024] Fig. 9 It is a schematic diagram of the disassembled three-dimensional structure of the skin expansion mechanism of the present invention.

[0025] Fig.10 It is a schematic cross-sectional three-dimensional structure diagram of the adaptation mechanism and the angle adjustment mechanism of the present invention.

[0026] Fig.11 It is a schematic diagram of the split three-dimensional structure of the adaptation mechanism of the present invention.

[0027] Fig.12 It is a partial three-dimensional structural schematic diagram of the present invention.

[0028] Fig.13 For the present invention Fig.12 Schematic diagram of the enlarged three-dimensional structure of A in the middle.

[0029] In the figure: 1_base, 101-sliding bent plate, 2_sliding limit rod, 3_compression spring, 41_slotted plate, 42_sliding support block, 421-support seat, 43_rotating disk, 44_fixing screw, 45_fixing block, 46_C-type extrusion rod, 47_extrusion spring, 51_support plate, 52_front rotating shaft, 53_rear rotating shaft, 54_friction extrusion disk, 55_positioning frame, 56_positioning tube, 57_L-type pressure rod, 61_connecting opening block, 62_support rod, 63_sliding opening block, 64_sliding extrusion rod, 65_extrusion spring, 66_skin foot support, 81_clamping block, 82_spring connecting block, 83_clamping spring, 91_connecting rod, 92_rotating block, 93_torsion spring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1: An improved device for assisting minimally invasive spinal surgery puncture positioning, such as Figure 1-Figure 7 As shown, it includes a base 1, a sliding bent plate 101, a sliding limit rod 2, a compression spring 3, a position adjustment mechanism and an angle adjustment mechanism. The sliding bent plate 101 is fixedly connected to the top of the base 1. Two sliding limit rods 2 are welded on the base 1. Two compression springs 3 are fixedly connected to the base 1, and the two compression springs 3 are respectively sleeved on the two sliding limit rods 2. The position adjustment mechanism is arranged on the sliding limit rod 2. The position adjustment mechanism is used to adjust the height of the puncture needle. The angle adjustment mechanism is arranged on the position adjustment mechanism. The angle adjustment mechanism is used to adjust the angle of the puncture needle so that the puncture needle can puncture the patient more accurately.

[0032] The position adjustment mechanism includes a slotted plate 41, a sliding support block 42, a support seat 421, a rotating disk 43, a fixing screw 44, a fixing block 45, a C-shaped extrusion rod 46 and an extrusion spring 47. The slotted plate 41 is connected to the base 1 by bolts, and a plurality of grooves are formed on the slotted plate 41. A sliding support block 42 is slidably connected between the two sliding limit rods 2, and the sliding support block 42 is slidably connected to the slotted plate 41. The sliding support block 42 is fixedly connected to the compression spring 3. The upper part of the sliding support block 42 is fixedly connected to the support seat 421. The upper part of the sliding support block 42 A rotating disk 43 is passed through, and the rotating disk 43 passes through a support seat 421. A fixing screw 44 is threadedly connected to the top of the sliding support block 42. The fixing screw 44 is vertically arranged. The fixing screw 44 is used to fix the adjusted angle of the rotating disk 43. The fixed block 45 is welded to the sliding support block 42. The C-shaped extrusion rod 46 is slidably connected to the fixed block 45. The upper end of the C-shaped extrusion rod 46 is slidably connected to the sliding support block 42. An extrusion spring 47 is connected between the sliding support block 42 and the C-shaped extrusion rod 46, and the extrusion spring 47 is sleeved on the fixed block 45.

[0033] The angle adjustment mechanism includes a support plate 51, a front rotating shaft 52, a rear rotating shaft 53, a friction extrusion disk 54, a positioning frame 55, a positioning tube 56 and an L-shaped pressure rod 57. One end of the rotating disk 43 is connected to the support plate 51 by bolts. The front rotating shaft 52 and the rear rotating shaft 53 are rotatably connected to the support plate 51. The friction extrusion disk 54 is welded to one end of the front rotating shaft 52 close to the rear rotating shaft 53. The friction extrusion disk 54 is used to rub with the support plate 51 to fix the angle of the puncture needle. A positioning frame 55 is welded and connected, and the positioning frame 55 is fixedly connected to the friction extrusion disk 54, and the friction extrusion disk 54 is in contact with the support plate 51. Two positioning tubes 56 are fixedly connected to the positioning frame 55, and the positioning tubes 56 are used to place the puncture needle, and the two positioning tubes 56 are symmetrically arranged. The L-shaped pressure rod 57 is rotatably connected to the end of the front rotating shaft 52 away from the friction extrusion disk 54, and the L-shaped pressure rod 57 is used to adjust the degree of tightness between the support plate 51 and the friction extrusion disk 54, and the L-shaped pressure rod 57 is in contact with the support plate 51.

[0034] At first, the compression spring 3 is compressed. When a minimally invasive spinal puncture operation is required, the sliding curved plate 101 is first clamped on the steel pipe of the hospital bed. The medical staff pushes the sliding curved plate 101 to move along the steel pipe of the hospital bed. The movement of the sliding curved plate 101 will drive the base 1, the slotted plate 41, the sliding support block 42, the support seat 421 and the rotating disk 43 to move along the front and rear directions of the bed body, so that the puncture position can be adjusted forward and backward. The medical staff moves the rotating disk 43 horizontally, and the movement of the rotating disk 43 will drive the support plate 51 to move horizontally, so that the puncture position can be adjusted left and right, which is convenient for the doctor to puncture the patient. The medical staff moves the sliding support block 42 upwards. When the sliding support block 42 slides, the compression spring 3 will reset, allowing the medical staff to move the sliding support block 42 more easily. The sliding support block 42 drives the rotating disk 43, the fixing screw 44, the fixing block 45, the C-shaped extrusion rod 46, the extrusion spring 47, the support plate 51, the front rotating shaft 52, the rear rotating shaft 53, the friction extrusion disk 54, the positioning frame 55, the positioning tube 56 and the L-shaped pressure rod 57 to move upward together, so that there is a certain space under the positioning tube 56. Then the patient lies on the operating table with his back facing up, and the positioning tube 56 is located above the patient's back. Then the sliding support block 42 is moved downward to adjust to a suitable height, and then the rotating disk 43 is rotated. The rotating disk 43 drives the fixing screw 44, the fixing block 45, the C-shaped extrusion rod 46, the extrusion spring 47, the support plate 51, the front rotating shaft 52, the rear rotating shaft 53, the friction extrusion disk 54, the positioning frame 55, the positioning tube 56 and the L-shaped pressure rod 57 to move upward together. The L-shaped pressing rod 57 rotates together, thereby adjusting the angle of the positioning tube 56, and then adjusting the lower end of the positioning tube 56 to align with the part of the patient where surgery is required, and at this time, tightening the fixing screw 44 downward, the fixing screw 44 squeezes the C-shaped squeezing rod 46 to slide toward the side close to the slotted plate 41, and the bottom of the C-shaped squeezing rod 46 will be embedded in the groove of the slotted plate 41, thereby fixing the height of the sliding support block 42, and continue to tighten the fixing screw 44 downward to make the fixing screw 44 in close contact with the rotating disk 43, thereby increasing the friction between the rotating disk 43 and the sliding support block 42, and then fixing the angle of the rotating disk 43, so that the rotating disk 43 and the positioning tube 56 remain stable, and then rotating the L-shaped pressing rod 57 clockwise, the L-shaped pressing rod 57 is out of contact with the side of the support plate 51, so that the friction squeezing The friction force between the pressure plate 54 and the inner side of the support plate 51 is reduced. At this time, the L-shaped pressure rod 57 is rotated to rotate with the front rotating shaft 52 as the center. The L-shaped pressure rod 57 drives the front rotating shaft 52, the rear rotating shaft 53, the friction and extrusion plate 54, the positioning frame 55 and the positioning tube 56 to rotate, thereby further adjusting the angle of the positioning tube 56, so that the positioning tube 56 can be more accurately aligned with the position where the patient needs to undergo surgery. After the adjustment is completed, the L-shaped pressure rod 57 is rotated counterclockwise to reset, and the friction and extrusion plate 54 contacts the inner side of the support plate 51 again. The friction force between the friction and extrusion plate 54 and the inner side of the support plate 51 is increased, and the front rotating shaft 52, the rear rotating shaft 53, the friction and extrusion plate 54, the positioning frame 55 and the positioning tube 56 are fixed and no longer rotate. During surgery, the puncture needle is inserted from the upper positioning tube 56.Then the puncture needle is passed through the positioning tube 56 below, so as to perform surgery on the surgical site of the patient more accurately. After the surgery is completed, the puncture needle is taken out of the positioning tube 56, and the medical staff lifts the base 1 off the operating table. Then the medical staff rotates the fixing screw 44 upward, and the fixing screw 44 is separated from the contact with the rotating disk 43. The extrusion spring 47 will reset and drive the C-shaped extrusion rod 46 to slide and reset to the side away from the groove plate 41. The lower end of the C-shaped extrusion rod 46 is separated from the groove of the groove plate 41, so that the height of the sliding support block 42 is no longer fixed. At this time, the medical staff moves the sliding support block 42 downward to reset.

[0035] Embodiment 2: Based on embodiment 1, Figure 7-Figure 9 As shown, it also includes a skin stretching mechanism, which is arranged on the support plate 51. The skin stretching mechanism is used to stretch the wrinkled skin surface of the patient to facilitate better positioning of the puncture needle, thereby facilitating more accurate puncture of the patient. The skin stretching mechanism includes a connecting hole block 61, a support rod 62, a sliding hole block 63, a sliding squeeze rod 64, a squeeze spring 65 and a skin foot support 66. Four support rods 62 are slidably connected to the support plate 51, and the space between each two support rods 62 is A connecting hole block 61 is connected by bolts, and the two connecting hole blocks 61 are symmetrically arranged. The lower ends of the two support rods 62 are fixedly connected with a sliding hole block 63. A sliding extrusion rod 64 is slidably connected to the sliding hole block 63. The sliding extrusion rod 64 is slidably connected to the connecting hole block 61. An extrusion spring 65 is connected between the sliding hole block 63 and the sliding extrusion rod 64. The skin foot support 66 is welded to the bottom end of the sliding extrusion rod 64, and the skin foot support 66 is used to directly contact the patient's back skin.

[0036] When the support plate 51 slides downward, it will drive the connecting hole block 61, the support rod 62, the sliding hole block 63, the sliding squeezing rod 64, the squeezing spring 65 and the skin foot support 66 to move downward, and the four skin foot supports 66 will contact the patient's back skin, and the skin foot supports 66 will stop moving downward. The support plate 51 drives the connecting hole block 61, the support rod 62 and the sliding hole block 63 to continue to move downward, and the sliding hole block 63 will push the sliding squeezing rod 64 and the skin foot support 66 to open outward through the squeezing spring 65, so that the skin foot support 66 opens the patient's back skin, thereby making the skin of the patient's back where puncture is required taut and reducing wrinkles, which is convenient for better positioning of the puncture needle, and then convenient for more accurate puncture of the patient.

[0037] Embodiment 3: Based on embodiment 1, Fig.10 and Fig.11As shown, an adaption mechanism is also included, which is arranged on the positioning frame 55. The adaption mechanism is used to adapt to puncture needles of different diameters. The adaption mechanism includes a clamping block 81, a spring connecting block 82 and a clamping spring 83. Two dark grooves are opened inside the positioning frame 55, and the two dark grooves are symmetrically arranged. Two spring connecting blocks 82 are slidably connected inside the dark groove of the positioning frame 55, wherein a clamping block 81 is welded on two spring connecting blocks 82, and two clamping blocks 81 are welded on the other two spring connecting blocks 82. Three of the clamping blocks 81 form a group, and every three of the clamping blocks 81 are staggered. The clamping blocks 81 can clamp puncture needles of different diameters, and a clamping spring 83 is connected between the spring connecting block 82 and the dark groove inside the positioning frame 55.

[0038] When the puncture needle passes through the lower end of the positioning tube 56 above, the puncture needle squeezes the clamping block 81 to slide toward both sides of the dark groove, and the clamping spring 83 will be compressed. The pressure of the clamping spring 83 makes the clamping block 81 and the puncture needle fit tightly, thereby adapting to different types of puncture needles.

[0039] Embodiment 4: Based on embodiment 1, Fig.12 and Fig.13 As shown, it also includes an end positioning mechanism, which is arranged on the positioning frame 55. The end positioning mechanism is used to assist the lower end of the positioning tube 56 to more accurately align with the position where the patient needs to undergo surgery. The end positioning mechanism includes a connecting rod 91, a rotating block 92 and a torsion spring 93. Two connecting rods 91 are welded to the bottom of the positioning frame 55, and the two connecting rods 91 are symmetrically arranged. The bottom of the connecting rod 91 is rotatably connected to the rotating block 92. A torsion spring 93 is connected between the connecting rod 91 and the rotating block 92. The torsion spring 93 is used to push the rotating block 92 to reset.

[0040] When the medical staff rotates the L-shaped pressure rod 57 to adjust the angle, the L-shaped pressure rod 57 will drive the front rotating shaft 52, the rear rotating shaft 53, the friction extrusion disk 54, the positioning frame 55, the positioning tube 56, the connecting rod 91, the rotating block 92 and the torsion spring 93 to rotate. When the positioning tube 56 is aligned with the part where surgery is required, there is still a certain distance from the surgical part. The rotating block 92 assists the positioning tube 56 to locate the surgical part more accurately. When the puncture needle passes through the lower end of the positioning tube 56, the puncture needle squeezes the rotating block 92 to open to both sides. When the puncture needle is taken out, the torsion spring 93 pushes the rotating block 92 to reset.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved puncture positioning device for assisting minimally invasive spinal surgery, characterized in that: The invention comprises a base (1), a sliding curved plate (101), a sliding limit rod (2), a compression spring (3), a position adjustment mechanism and an angle adjustment mechanism, wherein the top of the base (1) is fixedly connected to the sliding curved plate (101), the base (1) is fixedly connected to two sliding limit rods (2), the base (1) is fixedly connected to two compression springs (3), and the two compression springs (3) are respectively sleeved on the two sliding limit rods (2), the position adjustment mechanism is arranged on the sliding limit rod (2), and the angle adjustment mechanism is arranged on the position adjustment mechanism.

2. The improved device for assisting minimally invasive spinal surgery puncture positioning as claimed in claim 1, characterized in that: The position adjustment mechanism comprises a slotted plate (41), a sliding support block (42), a support seat (421), a rotating disk (43), a fixing screw (44), a fixing block (45), a C-shaped extrusion rod (46) and an extrusion spring (47), wherein the slotted plate (41) is fixedly connected to the base (1), a plurality of grooves are formed on the slotted plate (41), a sliding support block (42) is slidably connected between the two sliding limit rods (2), and the sliding support block (42) is slidably connected to the slotted plate (41), the sliding support block (42) is fixedly connected to the compression spring (3), and a support is fixedly connected to the upper portion of the sliding support block (42). The sliding support block (42) is provided with a rotating disk (43) passing through the upper part of the sliding support block (42), and the rotating disk (43) passes through the support seat (421). The top of the sliding support block (42) is connected with a fixing screw (44) by threading. The fixing block (45) is fixedly connected to the sliding support block (42). The C-shaped extrusion rod (46) is slidably connected to the fixing block (45). The upper end of the C-shaped extrusion rod (46) is slidably connected to the sliding support block (42). An extrusion spring (47) is fixedly connected between the sliding support block (42) and the C-shaped extrusion rod (46), and the extrusion spring (47) is sleeved on the fixing block (45).

3. The improved device for assisting minimally invasive spinal surgery puncture positioning as claimed in claim 2, characterized in that: The angle adjustment mechanism comprises a support plate (51), a front rotating shaft (52), a rear rotating shaft (53), a friction extrusion disk (54), a positioning frame (55), a positioning tube (56) and an L-shaped pressure rod (57); one end of the rotating disk (43) is fixedly connected to the support plate (51); the front rotating shaft (52) and the rear rotating shaft (53) are rotatably connected to the support plate (51); one end of the front rotating shaft (52) close to the rear rotating shaft (53) is fixedly connected to the friction extrusion disk (54); the rear rotating shaft (5 3) A positioning frame (55) is fixedly connected to one end close to the front rotating shaft (52), the positioning frame (55) is fixedly connected to the friction extrusion disk (54), the friction extrusion disk (54) is in contact with the support plate (51), two positioning tubes (56) are fixedly connected to the positioning frame (55), and the two positioning tubes (56) are symmetrically arranged, and the L-shaped pressure rod (57) is rotatably connected to one end of the front rotating shaft (52) away from the friction extrusion disk (54), and the L-shaped pressure rod (57) is in contact with the support plate (51).

4. The improved device for assisting minimally invasive spinal surgery puncture positioning as claimed in claim 3, characterized in that: The invention also comprises a skin stretching mechanism, which is arranged on the support plate (51), and comprises a connecting hole block (61), a support rod (62), a sliding hole block (63), a sliding extrusion rod (64), an extrusion spring (65) and a skin foot support (66). Four support rods (62) are slidably connected to the support plate (51), a connecting hole block (61) is fixedly connected between every two support rods (62), and the two connecting hole blocks (61) are symmetrically arranged. The lower ends of the two support rods (62) are fixedly connected to the sliding hole block (63), the sliding hole block (63) is slidably connected to the sliding extrusion rod (64), the sliding extrusion rod (64) is slidably connected to the connecting hole block (61), the sliding hole block (63) and the sliding extrusion rod (64) are fixedly connected to the sliding hole block (61), and the extrusion spring (65) is fixedly connected between the sliding hole block (63) and the sliding extrusion rod (64), and the skin foot support (66) is fixedly connected to the bottom end of the sliding extrusion rod (64).

5. The improved device for assisting minimally invasive spinal surgery puncture positioning as claimed in claim 4, characterized in that: The invention also comprises an adapting mechanism, which is arranged on the positioning frame (55), and comprises a clamping block (81), a spring connecting block (82) and a clamping spring (83). Two dark grooves are formed inside the positioning frame (55), and the two dark grooves are symmetrically arranged. Two spring connecting blocks (82) are slidably connected inside the dark groove of the positioning frame (55), wherein one clamping block (81) is fixedly connected to two spring connecting blocks (82), and two clamping blocks (81) are fixedly connected to the other two spring connecting blocks (82). Three clamping blocks (81) form a group, and every three clamping blocks (81) are staggered. A clamping spring (83) is connected between the spring connecting block (82) and the dark groove inside the positioning frame (55).

6. The improved device for assisting minimally invasive spinal surgery puncture positioning as claimed in claim 5, characterized in that: The invention also comprises an end positioning mechanism, the end positioning mechanism being arranged on the positioning frame (55), the end positioning mechanism comprising a connecting rod (91), a rotating block (92) and a torsion spring (93), the bottom of the positioning frame (55) being fixedly connected to two connecting rods (91), and the two connecting rods (91) being symmetrically arranged, the bottom of the connecting rod (91) being rotatably connected to the rotating block (92), and a torsion spring (93) being connected between the connecting rod (91) and the rotating block (92).

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