A minimally invasive spinal surgery access device for pedicle fixation and methods of use

Abstract

The application discloses a kind of vertebral pedicle fixed minimally invasive spine surgery channel device and its using method, including bearing platform, the bearing platform relative two sides are provided with the softness silica gel web connected by memory alloy bending plate piece, the bearing platform and softness silica gel web can keep any included angle state by the memory alloy bending plate piece and keep;The bearing platform is equipped with assembly opening, and further include channel guide portion on the assembly opening is screwed on.The vertebral pedicle fixed minimally invasive spine surgery channel device provided by the application, simple structure, convenient and fast operation, early can be used for the guiding and positioning needs of vertebral arch nail installation, later can be through the way of additional guide piece to be first spinal surgery channel device and second spinal surgery channel device to be concluded and handled, more rich in function, can hide the demand in surgical process.

Description

Technical Field

[0001] This invention relates to the field of minimally invasive spinal access technology, specifically to a minimally invasive spinal surgery access device for pedicle screw fixation and its usage method. Background Technology

[0002] Minimally invasive spinal surgery is a surgical method performed using microscopes and minimally invasive techniques, resulting in smaller incisions, less surgical trauma, and faster postoperative recovery. For pedicle screw fixation surgery, minimally invasive techniques typically use specialized navigation systems and instruments to place screws and other implants in the appropriate positions through smaller incisions for fixation, achieving spinal stability.

[0003] Based on the publication (announcement) number CN109770968B, publication (announcement) date: 2021-05-25, a minimally invasive spinal surgery channel device for pedicle screw fixation is disclosed. This device includes a first spinal surgery channel device, a second spinal surgery channel device, and a connector. The two ends of the connector are respectively connected to the first and second spinal surgery channel devices to form a mutually constraining and fixing relationship between them. The first and second spinal surgery channel devices each include a guide needle, an expansion sleeve, and an outer sleeve. The connector includes a clamping ring fixed to the first and second spinal surgery channel devices and a connecting locking device. This device provides a tighter connection between the connector and the first and second spinal surgery channel devices, ensuring the mutually constraining relationship between them and maintaining their relative position. Furthermore, the connector fixation is more convenient and faster, improving surgical efficiency.

[0004] In the prior art, including the aforementioned patents, the minimally invasive spinal surgery channel for pedicle screw fixation is mainly used to ensure the relative positional relationship between the first and second spinal surgery channel devices by establishing a mutual constraint relationship between them. However, during the surgery, a single-point operation is required to implant the pedicle screw. Many designs focus on how to establish the connection between the first and second spinal surgery channel devices, while little consideration is given to guiding and positioning the pedicle screw implantation. Summary of the Invention

[0005] The purpose of this invention is to provide a minimally invasive spinal surgery access device for pedicle screw fixation and its method of use, in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A minimally invasive spinal surgery access device for pedicle screw fixation includes a support platform. Soft silicone webs are provided on opposite sides of the support platform and connected by shape memory alloy bending plates. The support platform and the soft silicone webs can maintain any angle state through the shape memory alloy bending plates.

[0008] The support platform is provided with an assembly port, and also includes a channel guide that is threaded onto the assembly port.

[0009] Preferably, a fixing frame is also included, which is used to support the support platform to maintain a predetermined state;

[0010] The fixing frame includes:

[0011] Erect a pole;

[0012] An upper clamping plate welded to the upright and a lower clamping plate slidably disposed on the upright, and the distance between the upper clamping plate and the lower clamping plate is adjustable by a nut piece threaded to the upright;

[0013] The first support rod also includes an adapter for assembling the first support rod with the upright and maintaining it at any angle.

[0014] Preferably, the adapter includes a sliding sleeve and a clamping part rotatably assembled with the sliding sleeve;

[0015] The sliding sleeve and clamping part are threaded with positioning screws;

[0016] Locking nuts are threaded onto the rotating shaft of the sliding sleeve and the clamping part.

[0017] Preferably, the device also includes a probe rod, which has an L-shaped structure with an obtuse angle, and is divided into a long section and a short section according to its length, with a joint ball at the end of the short section;

[0018] A transition seat is fixedly provided on one side of the support platform. The articulated ball can be located inside the transition seat and is limited by the sealing seat movably provided on the short section and threadedly assembled with the port of the transition seat.

[0019] The long section is connected to the first support rod via an adapter.

[0020] Preferably, the long section has a circumferentially arranged array of toothed grooves, and the clamping part on the adapter clamps at the location of the toothed grooves on the long section.

[0021] Preferably, the port of the adapter is provided with wedge-shaped clips arranged in a circular array, and the plurality of wedge-shaped clips are brought together with the assembly end of the sealing seat to clamp the joint ball.

[0022] Preferably, the outer wall of the channel guide portion is provided with an annular portion, and the annular portion makes the channel guide portion a threaded connection portion and an outer edge portion;

[0023] It also includes a guide that is mounted on the outer edge.

[0024] Preferably, the inner wall of the channel guide is provided with a spiral annular groove, the first port of the spiral annular groove completely penetrates the end of the threaded connection part, while the second port extends to the outer edge and communicates with the arc-shaped groove provided on the outer wall of the outer edge.

[0025] The number of spiral grooves is two, and the spiral directions are opposite.

[0026] Preferably, the guide includes;

[0027] C-type clamp,

[0028] An arc-shaped rod, the first end of which is rotatably engaged with a wing screw threaded onto the C-shaped clamp, and the wing screw keeps the two at any angle.

[0029] The guide sleeve has a wing screw threaded onto the second end of the arc-shaped rod, which is in rotational engagement with the arc-shaped rod and maintains the two at any angle through the wing screw.

[0030] A method of using a minimally invasive spinal surgery access device for pedicle screw fixation, comprising the aforementioned minimally invasive spinal surgery access device for pedicle screw fixation, the operation of which includes the following steps:

[0031] S01. The lower clamping piece is driven by the nut to move closer to the upper clamping piece and clamp it on the operating table;

[0032] S02. Then adjust the height and tilt angle of the first support rod and the upright, then adjust the tilt angle of the first support rod and the probe rod, and finally use the joint ball to make the final adjustment so that the support platform fits the affected area.

[0033] S04. Bend the soft silicone webs so that the angle between the support and the soft silicone webs can be changed, and finally make the soft silicone webs fit the human body to achieve support.

[0034] S05. After adjusting the length of the threaded connection part by rotating the ring body of the hand-held support to a suitable position, insert the smoke extraction pipe or carbon dioxide pipe through the arc groove to connect with the spiral ring groove for smoke extraction or carbon dioxide input.

[0035] S06. Manually adjust the angles of the arc-shaped rod and the C-shaped clamp, as well as the angles of the guide sleeve and the arc-shaped rod, to ensure precise alignment of the instruments for minimally invasive percutaneous endoscopic lumbar discectomy.

[0036] In the above technical solution, the present invention provides a minimally invasive spinal surgery channel device for pedicle fixation and its method of use, which has the following beneficial effects: the support platform and the soft silicone web are connected by a shape memory alloy bending plate, which can be bent to maintain its shape, and then the soft silicone web is used to support the support platform. The bending state can determine the height of the support platform from the affected area to meet the needs of surgery.

[0037] Furthermore, the guide section is assembled onto the support platform to form a guide channel, in order to meet the needs of pedicle screw implantation in minimally invasive surgery. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0039] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0040] Figure 2 A schematic diagram of the cross-sectional structure of the foundation provided in an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the cross-sectional structure of the channel guide provided in an embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of the structure of the support platform and probe provided in an embodiment of the present invention;

[0043] Figure 5 An exploded structural diagram of the support platform, channel guide, and guide member provided in an embodiment of the present invention.

[0044] Explanation of reference numerals in the attached figures:

[0045] 1. Foundation; 11. Assembly port; 12. Adapter seat; 121. Wedge-shaped clamp; 2. Soft silicone web; 3. Shape memory alloy bent plate; 4. Channel guide; 41. Ring body; 42. Threaded connection; 43. Outer edge; 431. Arc groove; 44. Spiral ring groove; 5. Fixing frame; 51. Upright; 52. Upper clamp; 53. Nut; 54. Lower clamp; 55. First support rod; 6. Adapter; 61. Sliding sleeve; 62. Clamping part; 7. Probe; 71. Joint ball; 72. Seat; 73. Gear; 8. Guide; 81. C-type clamp; 82. Arc rod; 83. Guide sleeve. Detailed Implementation

[0046] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0047] like Figure 1-5 As shown, a minimally invasive spinal surgery channel device for pedicle fixation includes a platform 1. Soft silicone webs 2 are provided on opposite sides of the platform 1 and connected by shape memory alloy bending plates 3. The platform 1 and the soft silicone webs 2 can maintain any angle state through the shape memory alloy bending plates 3.

[0048] The support 1 has an assembly port 11 and also includes a channel guide 4 threaded onto the assembly port 11.

[0049] Specifically, in the above embodiment, the shape memory alloy bent plate 3 has several bending holes on its upper and lower surfaces.

[0050] In the above technology, the support platform 1 and the soft silicone web 2 are connected by a shape memory alloy bending plate 3. The shape can be maintained after bending. Then, the soft silicone web 2 is used to support the support platform 1 in the air. The height of the support platform 1 from the affected area can be determined by the bending state to meet the needs of surgery.

[0051] Furthermore, the guide section 4 is assembled on the support platform 1 to form a guide channel to meet the needs of pedicle screw implantation in minimally invasive surgery.

[0052] As a further embodiment of the present invention, it also includes a fixing frame 5, which is used to support the support platform 1 to maintain a predetermined state;

[0053] The mounting bracket 5 includes:

[0054] Pole 51;

[0055] The upper clamping piece 52 is welded to the upright 51 and the lower clamping piece 54 is slidably disposed on the upright 51. The distance between the upper clamping piece 52 and the lower clamping piece 54 is adjustable by the nut piece 53 threadedly assembled with the upright 51.

[0056] The first support rod 55 also includes an adapter 6, which is used to assemble the first support rod 55 with the upright 51 and maintain it at any angle.

[0057] Furthermore, the adapter 6 includes a sliding sleeve 61 and a clamping part 62 rotatably assembled with the sliding sleeve 61.

[0058] Positioning screws are threaded onto the sliding sleeve 61 and the clamping part 62;

[0059] Locking nuts are threaded onto the rotating shafts of the sliding sleeve 61 and the clamping part 62.

[0060] Specifically, during the assembly of the first support rod 55 and the upright rod 51, the height of the sliding sleeve 61 on the upright rod 51 can be changed by the cooperation of the positioning screw with the upright rod 51. Then, by tightening or loosening the locking nut, the angle of the contact sliding sleeve 61 and the clamping part 62 can be locked and unlocked to adjust the angle to meet the normal angle requirements.

[0061] As another embodiment of the present invention, it also includes a probe 7, which is an L-shaped structure with an obtuse angle, and is divided into a long section and a short section according to its length, with a joint ball 71 provided at the end of the short section;

[0062] A transition seat 12 is fixedly installed on one side of the foundation 1. The articulated ball 71 can be located inside the transition seat 12 and is limited by the threaded assembly of the sealing seat 72, which is movably installed on the short section, with the port of the transition seat 12.

[0063] The long section is connected to the first support rod 55 via adapter 6.

[0064] Furthermore, the long section is provided with a circumferentially arranged toothed groove 73, and the clamping part 62 on the adapter 6 clamps at the location of the toothed groove 73 on the long section.

[0065] Specifically, during the assembly of the first support rod 55 and the probe rod 7, the position of the sliding sleeve 61 on the first support rod 55 can be changed by the cooperation of the positioning screw and the probe rod 7. Then, by tightening or loosening the lock nut, the angle between the contact sliding sleeve 61 and the clamping part 62 can be locked, and the locking can be released. Secondly, the assembly... Figure 2 It can be seen that wedge-shaped clips 121 arranged in a circular array are provided on the port of the adapter 12. Multiple wedge-shaped clips 121 are assembled with the sealing seat 72 and their ends are closed to clamp the joint ball 71. Therefore, when the knob sealing seat 72 is turned, it can control the wedge-shaped clips 121 to release and lock the joint ball 71, thereby adjusting the angle to meet the normal angle requirements.

[0066] As another embodiment of the present invention, the outer wall of the channel guide portion 4 is provided with an annular portion 41, and the channel guide portion 4 is divided into a threaded connection portion 42 and an outer edge portion 43 through the annular portion 41;

[0067] It also includes a guide 8 mounted on the outer edge 43.

[0068] Furthermore, a spiral annular groove 44 is provided on the inner wall of the channel guide part 4. The first port of the spiral annular groove 44 completely penetrates the end of the threaded connection part 42, while the second port extends to the outer edge part 43 and communicates with the arc groove 431 provided on the outer wall of the outer edge part 43.

[0069] There are two spiral grooves 44, and the spiral directions are opposite.

[0070] Furthermore, the bootloader 8 includes;

[0071] C-type clamp 81,

[0072] The first end of the arc-shaped rod 82 is connected to the wing screw threadedly by the C-type clamp 81, and the wing screw keeps the two at any angle.

[0073] The second end of the guide sleeve 83 and the arc-shaped rod 82 are connected to the wing screw threaded through the guide sleeve 83 in a rotating engagement with the arc-shaped rod 82, and the wing screw keeps the two at any angle.

[0074] Specifically, in the above embodiment, by holding the ring body 41, the height of the threaded connection 42 is changed to move closer to the affected area. After that, the smoking pipe or carbon dioxide pipe is inserted through the arc groove 431 and connected with the spiral ring groove 44 to smoke or input carbon dioxide.

[0075] Furthermore, in the above embodiments, the angles of the adjustable arc rod 82 and the C-shaped clamp 81, as well as the angles of the guide sleeve 83 and the arc rod 82, are driven by rotating the butterfly screw in sequence to ensure the precise alignment of the instruments for minimally invasive percutaneous endoscopic lumbar discectomy.

[0076] A method for using a minimally invasive spinal surgery access device for pedicle screw fixation includes the following steps:

[0077] S01. The lower clamping piece 54 is driven to approach the upper clamping piece 52 by the nut piece 53 to clamp it on the operating table;

[0078] S02. Then adjust the height and tilt angle of the first support rod 55 and the upright rod 51, then adjust the tilt angle of the first support rod 55 and the probe rod 7, and finally use the joint ball 71 to make the final adjustment so that the support 1 fits the affected area.

[0079] S04. Bend the soft silicone web 2 so that the angle between the support platform 1 and the soft silicone web 2 can be changed, and then finally make the soft silicone web 2 fit the human body to achieve support.

[0080] S05. After adjusting the downward length of the threaded connection part 42 by rotating the ring part 41 to a suitable position, the smoke extraction pipe or carbon dioxide pipe is inserted through the arc groove 431 and connected with the spiral ring groove 44 to smoke or input carbon dioxide.

[0081] S06. Manually adjust the angles of the arc-shaped rod 82 and the C-shaped clamp 81, as well as the angles of the guide sleeve 83 and the arc-shaped rod 82, to ensure precise alignment of the instruments for minimally invasive percutaneous endoscopic lumbar discectomy.

[0082] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A minimally invasive spinal surgery access device for pedicle screw fixation, characterized in that, Includes a base (1), on which soft silicone webs (2) are provided on opposite sides by a shape memory alloy bending plate (3), and the base (1) and the soft silicone webs (2) can maintain any angle state through the shape memory alloy bending plate (3); The support (1) is provided with an assembly port (11) and also includes a channel guide (4) threaded onto the assembly port (11). It also includes a fixing frame (5) for supporting the support platform (1) to maintain a predetermined state; The fixing frame (5) includes: Pole (51); The upper clamping piece (52) welded to the upright (51) and the lower clamping piece (54) slidably disposed on the upright (51) are driven by the nut (53) threaded to the upright (51) to make the distance between the upper clamping piece (52) and the lower clamping piece (54) adjustable; The first support rod (55) also includes an adapter (6) for assembling the first support rod (55) with the upright (51) and maintaining it at any angle. It also includes a probe (7), which is an L-shaped structure with an obtuse angle, and is divided into a long section and a short section according to its length. The end of the short section is provided with a joint ball (71). A transition seat (12) is fixedly provided on one side of the support platform (1). The articulated ball (71) can be located inside the transition seat (12) and is limited by the sealing seat (72) movably provided on the short section and threadedly assembled with the port of the transition seat (12). The long section is connected to the first support rod (55) via an adapter (6); The outer wall of the channel guide (4) is provided with an annular part (41), and the channel guide (4) is divided into a threaded connection part (42) and an outer edge part (43) through the annular part (41). It also includes a guide (8) mounted on the outer edge (43); The inner wall of the channel guide (4) is provided with a spiral annular groove (44). The first port of the spiral annular groove (44) completely penetrates the end of the threaded connection (42), while the second port extends to the outer edge (43) and communicates with the arc groove (431) opened on the outer wall of the outer edge (43). The number of spiral grooves (44) is two, and the spiral directions are opposite.

2. The minimally invasive spinal surgery access device for pedicle screw fixation according to claim 1, characterized in that, The adapter (6) includes a sliding sleeve (61) and a clamping part (62) rotatably assembled with the sliding sleeve (61). The sliding sleeve (61) and the clamping part (62) are threaded with positioning screws; Locking nuts are threaded onto the shafts of the sliding sleeve (61) and the clamping part (62).

3. The minimally invasive spinal surgery access device for pedicle screw fixation according to claim 1, characterized in that, The long section is provided with a circumferential array of toothed grooves (73), and the clamping part (62) on the adapter (6) is clamped at the location of the toothed grooves (73) of the long section.

4. The minimally invasive spinal surgery access device for pedicle screw fixation according to claim 1, characterized in that, The port of the adapter (12) is provided with wedge-shaped clips (121) arranged in a circular array. The multiple wedge-shaped clips (121) are assembled with the sealing seat (72) and their ends are closed to clamp the articulated ball (71).

5. The minimally invasive spinal surgery access device for pedicle screw fixation according to claim 1, characterized in that, The guide (8) includes; C-type clamp (81). The first end of the arc-shaped rod (82) is connected to the wing screw threaded through the C-type clamp (81) in a rotational fit with the arc-shaped rod (82), and the wing screw keeps the two at any angle. The guide sleeve (83) has a wing screw threaded onto the second end of the arc-shaped rod (82) through the guide sleeve (83) and the arc-shaped rod (82) in a rotational fit, and the wing screw keeps the two at any angle.

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